• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Portable cooling device comprising a bracelet (17) and a radiator arranged on the bracelet (17), in which it is proposed according to the invention that the radiator is designed as an airflow generator (1) for an airflow directed in an outflow direction of the radiator, wherein the airflow generator (1) in a on the bracelet (17) attached or integrally formed holder (11) is arranged, which has at least one protruding in the outflow projection (10) which extends at least partially within the air flow or the air flow at least partially enclosing. The invention thus provides a portable cooling device that can be made very small and compact and thus can be carried inconspicuously. The device according to the invention is also robust and has a lower power consumption than conventional devices.
    公开号:AT516054A4
    申请号:T50750/2014
    申请日:2014-10-20
    公开日:2016-02-15
    发明作者:Michael Geyer；Mark Mag Wallerberger
    申请人:Active Wearables Og；
    IPC主号:
    专利说明:

    The invention relates to a portable cooling device with a bracelet and a cooler arranged on the bracelet according to the preamble of claim 1.
    At warm ambient temperatures, cooling of the body is desired. If there is no cooling of the ambient air itself, a cooling of the skin surface can be made. For this purpose, aids such as fans or the like are known, which achieve a cooling effect by an air flow on the skin surface. Furthermore, a portable cooling device with a bracelet and a cooler arranged on the bracelet is known, wherein the cooler is designed as a Peltier element. However, Peltier elements are characterized by a high energy requirement, so that portable devices with Peltier elements have only short operating times and comparatively long charging times. In addition, the Peltier element must be used in close contact with the skin surface, which is sometimes perceived as unpleasant.
    It is therefore the object of the invention to provide a portable cooling device with a wristband and a cooler arranged on the bracelet, which has a smaller power consumption than known devices, and thus with the same charging times longer operating times. In addition, the cooling device according to the invention should be inconspicuous wear and also about professionally with appropriate clothing and usual posture, such as when working on a computer resting on the table top wrist, be used.
    These objects are achieved by the features of claim 1. Claim 1 provides for a portable cooling device with a bracelet and a cooler arranged on the bracelet according to the invention that the radiator is designed as an air flow generator for a directed in an outflow direction of the radiator air flow, the air flow generator is mounted in a bracket attached or molded bracket, which has at least one projection projecting in the outflow direction, which extends at least in sections enclosing at least sections within the air flow or the air flow.
    According to the invention, an air flow generator arranged in a holder is thus provided, wherein the outflow direction of the air flow is oriented inwardly when the bracelet is closed, ie when the bracelet is applied in the direction of the skin surface. Decisive for the operability of the cooling device according to the invention is the maintenance of a suitable air flow in the outflow direction, which is ensured according to the invention by means of at least one protruding in the outflow extension of the holder. This extension extends at least in sections within the air flow or at least partially encloses the air flow. In this way, as will be explained in more detail when a bracelet is created a cooling or delivery area for the air flow, wherein a maximum cooling effect is achieved by the influx of the skin surface with the cooling air flow. The bracelet is applied in the usual way in the wrist area, wherein the air flow generator is located above the pulse point of the wrist, ie the area in which the pulse can be felt. The cooling of pulse points has a great influence on the subjective sensation of heat of humans. Due to the streaming air, the wearer of the bracelet according to the invention feels subjectively cooler, without the entire body having to be cooled. One of the most sensitive pulse points lies at the wrist, which is exploited by the cooling device according to the invention.
    The holder of the air flow generator can be provided on its with the bracelet closed outwardly oriented side with a cover which forms at least one lateral suction opening with the holder. The sucked air thus enters through the at least one lateral intake opening from a direction oriented substantially perpendicular to the clear cross section of the closed bracelet direction in the cooling device and is subsequently deflected in the outflow direction. The cover provided for this purpose supports this deflection of the sucked air and ensures it even when the cooling device according to the invention is worn approximately under a long-sleeved shirt or blouse. In this case, the cover also protects the air flow generator from interference with the air flow generation by the clothing worn over the cooling device or when resting the forearm on a table top or the like.
    The air flow generator can be designed as a piezo fan. These coolers rely on the piezoelectric effect and are also known as "Dual Piezoelectric Cooling Jets". (DCJ) They have two thin metal plates with piezoelectric elements that move when applying an AC voltage with frequencies of several hundred hertz to kilohertz and produce a high-speed airflow that is delivered through a nozzle. Similar to a bellows while ambient air is sucked in and discharged as cooling air again. Preferably, piezo fans are used which are operated at frequencies above 20 kHz, so that they are imperceptible to the human ear,
    When using such a piezo fan is proposed that the at least one extension is nozzle-shaped. The at least one nozzle-shaped extension is directed in the direction of the skin surface, so that the skin surface is supplied with cooling air or flows around it. In this case, the nozzle effect can be exploited, in which strongly moving air entrains the surrounding air and thus multiplies the fan effect.
    The air flow generator can also be designed as an axial fan, which is mounted in a breakthrough of a running as a bearing plate holder with the bearing plate vertical axis of rotation. The cover is preferably designed as a cover plate spanning the axial fan. This cover plate favors the exclusive suction of air through the side suction and increases the flow rate of the sucked air at the same speed of the axial fan. The side suction can also be covered by the intake opening spanning fins that protect the axial fan against the ingress of harmful small parts and can also keep away spray water with a suitable design, but let the incoming air pass unhindered.
    The extensions can also be designed as perpendicular to the clear cross section of the closed bracelet extending webs. Such an embodiment favors the setting of an outflow direction of the air to be discharged oriented perpendicular to the clear cross section of the closed bracelet. In this case, the webs can also be curved, in particular in the form of webs, which lie closer to each other in their central regions than in their outer end regions. This design promotes the expulsion of warmed air. To be particularly advantageous, it has also been found that the extensions are designed to conduct heat, such as metallic material, since they absorb heat in this way from the skin surface in use and can release it to the air flow.
    The air flow generator can be put into operation by a corresponding control element or by merely closing the bracelet. However, in order to avoid a habituation effect of the wearer and thus a reduced cooling effect, it is proposed that the wristband be provided with a control unit which is connected to the air flow generator for the purpose of implementing switch-on and switch-off cycles. Each time the air flow generator is switched on again, the cooling is perceived subjectively intensively again. An air flow generator has the advantage over a Peltier element that the cooling effect can be activated or deactivated without delay immediately after switching on or off, so that a control is well possible. In addition, the power requirement for the air flow generator can be reduced by means of switch-on and switch-off cycles, and the service life can be extended considerably. Furthermore, the bracelet with pulse and / or
    Be provided with temperature sensors, which are connected to the control unit. These sensors measure skin and / or ambient temperatures and can use the control unit's readings to adjust cooling times, cooling time, and cooling periods to achieve the optimal subjective cooling effect. Moisture meters, position sensors and the like can also be provided and their data used to optimize the cooling effect. These sensors can be installed in the bracket, in the extensions of the bracket or in other parts of the bracelet.
    Of course, the bracelet provided according to the invention may also serve as a carrier for other devices, such as watches with additional functions ("smart watches"), solar cells or portable communication devices. The provided for the air flow generator power supply can also serve as a power supply of the additional device, or provided for the additional device power supply as a power supply for the air flow generator.
    The invention will be explained in more detail by means of embodiments with reference to the accompanying figures. It shows the
    1 is a perspective view of an embodiment of the cooling device according to the invention with axial fan,
    2 shows a perspective view of an embodiment of the cooling device according to the invention during use,
    3 is a sectional view through the embodiment of the cooler of FIG. 1,
    4 shows a perspective view of a further embodiment of the cooling device according to the invention,
    5 is a sectional view of an embodiment of the cooling device according to the invention in the position of use for explaining the generated air flow,
    6a and 6b are perspective views of the cooling device according to the invention with different versions of the spacers,
    7 is a sectional view through an embodiment of the radiator,
    8a and 8b representations for explaining possible embodiments of damping elements,
    9 is a perspective view of another embodiment of the cooling device according to the invention with a smartwatch,
    10 is a perspective view of another embodiment of the cooling device according to the invention with additional sensors,
    11 is an illustration of the cooler for explaining a possible embodiment of the intake openings,
    12 is a sectional view through a further embodiment of a cooling device according to the invention with a piezo fan,
    13 shows a sectional view of an embodiment according to the invention with a piezo fan and a possible embodiment of a nozzle-shaped extension,
    14 is a sectional view of another embodiment of a nozzle-shaped extension in a piezo-fan,
    15 shows a sectional view of an embodiment according to the invention with a piezo fan and a further embodiment of the nozzle-shaped extensions,
    16 is a sectional view in the direction A-A of FIG. 15,
    Fig. 17 is a sectional view of an embodiment of the invention with piezo-fan and another embodiment of a nozzle-shaped projection with downwardly oriented suction, and the
    18 shows a sectional view of an embodiment according to the invention with a piezo fan and a further embodiment of nozzle-shaped extensions and downwardly oriented intake openings.
    Reference is first made to Fig. 1, which shows a perspective view of an embodiment of the cooling device according to the invention with a bracelet 17 and attached to the bracelet 17 or molded bracket 11, which is designed in the illustrated embodiment as a bearing plate. The holder 11 forms a part of the peripheral area of the bracelet 17 when the bracelet 17 is closed. In the holder 11 designed as a bearing plate, an air flow generator 1 designed as an axial fan is rotatably supported, whereby the axis of rotation of the axial fan and thus the outflow direction of the generated air flow are oriented perpendicular to the bearing plate is.
    The holder 11 is provided on its with the bracelet closed 17 outwardly oriented side with a cover 4, which forms at least one lateral suction opening 2 with the holder 11. The holder 11 and the cover 4 are made of a sufficiently rigid material for this purpose. The cover 4 is executed in the illustrated embodiment as a the axial fan spanning cover plate.
    On the side of the holder 11, which is oriented inwards when the bracelet 17 is closed, protrusions 10 projecting in the outflow direction are arranged. In the illustrated embodiment, the extensions 10 are designed as two perpendicular to the clear cross-section of the closed bracelet 17 extending webs, which are integrally formed on the holder 11. When the bracelet 17 is applied, the projections 10 also serve as spacers in order to ensure sufficient spacing of the holder 11 from the skin surface and to form a cooling space below the holder 11 for the generated air flow, as can be seen from FIG.
    Fig. 2 shows a perspective view of an embodiment of the cooling device according to the invention during use, wherein it can be seen that the bracelet 17 is applied in the usual manner in the wrist area, wherein the air flow generator 1 is above the pulse point of the wrist, ie that area in the pulse can be felt. As already mentioned, the cooling of pulse points has a great influence on the subjective heat sensation of humans. Due to the air that flows in, the carrier of the cooling device according to the invention feels subjectively cooler, without the entire body having to be cooled. One of the most sensitive pulse points lies at the wrist, which is exploited by the cooling device according to the invention. The projections 10 are close to the wrist during use of the cooling device according to the invention and ensure the spacing of the holder 11 with the air flow generator 1 of the skin surface 5 sure (see also Fig. 3). Preferably, the extensions 10 may be made thermally conductive, so that they can dissipate heat from the skin surface 5 and deliver it to the passing air stream.
    With reference to FIG. 3, which shows a sectional view through the embodiment of the cooler according to FIG. 1, the resulting air flow through the cooler is explained. Of the
    Axial fan conveys the air flow from the suction side to the pressure side parallel to the axis of rotation of the axial fan. Due to the cover 4 spaced from the holder 11, which forms at least one lateral suction opening 2 between the cover 4 and the holder 11, however, the sucked air enters the cooling device through the at least one lateral suction opening 2 perpendicular to the clear cross section of the closed bracelet 17 and is subsequently deflected by the axial fan in the rotational axis direction and ejected in the parallel outflow direction to the pressure side. On the side of the holder 11 which is oriented inwards when the bracelet 17 is closed, the air flow thus generated is ensured by the projections 10 projecting from the holder 11 in the outflow direction. In this way, a cooling area for the air flow between the holder 11 and the skin surface 5 is created when wearing a bracelet 17, wherein the vertical flow of the skin surface 5 with the cooling air flow a maximum cooling effect is achieved and due to the spacing of the holder 11 from the skin surface 5 side discharge openings 3 are provided, through which the warmed air can leave the cooling device according to the invention.
    FIG. 4 shows a perspective view of a further embodiment of the cooling device according to the invention, wherein the lateral intake opening 2 is provided with lamellae 6 spanning the intake opening 2. Furthermore, a arranged in the bracelet 17 control unit 7 and a power supply 8 with a charging socket 16 can be seen. The power supply 8 is designed as a rechargeable battery via a micro-USB. The control unit 7, the air flow generator 1 and the power supply 8 are connected to each other via electrical conductors, not shown. The control unit 7 may be designed approximately so that it controls on and off cycles of the air flow generator 1 and thus avoids a habituation effect of the wearer and the associated reduction in the subjective cooling effect. In addition, the power consumption for the air flow generator 1 is reduced and the operating time can be significantly extended. The control unit 7 can also take on additional functions, as will be explained in more detail.
    The generated air flow within an embodiment of the inventive cooling device with axial fan in the position of use will be explained with reference to FIG. 5, the cooling device being carried below a shirt sleeve 9. It can be seen how the cover 4 protects the axial fan from influencing the rotational movement of the axial fan influencing by the worn over the cooling device clothing. The deflection of the sucked air from a perpendicular to the clear cross section of the closed bracelet 17 directed
    Suction in a direction perpendicular to the skin surface 5 oriented cooling air flow is effected by the interaction of the cover 4, the axial fan and the extensions 10. FIGS. 6 a and 6 b show perspective views of the cooling device according to the invention with different embodiments of the extensions 10. As already mentioned, the extensions 10 can be designed as webs running perpendicular to the clear cross section of the closed bracelet 17, with two such webs being illustrated in FIG. 6a, for example. Such an embodiment favors the setting of a perpendicular to the clear cross-section of the closed bracelet 17 oriented discharge direction of the discharged air. The webs can also be curved, as shown in Fig. 6b can be seen. The curvature is chosen such that the webs are closer to each other in their central regions than in their outer end regions, so that the clear cross-section of the discharge openings 3 widens from the central regions to the end regions of the webs. The expanded cross-section of the discharge openings 3 promotes the discharge of the outflowing air, since the flow velocity of the air in the direction of the discharge openings 3 decreases and the expanding volume reduces backflow effects. The projections 10 designed as webs run at least partially within the air flow.
    7 shows a sectional view through an embodiment of an air flow generator designed as an axial fan, wherein it can be seen that the axial fan, at least along its peripheral region facing the at least one suction opening 2, projects beyond the holder 11 designed as a bearing plate on its suction side. This measure increases the intake volume for the intake air and thus the amount of cooling air at the same speed of the axial fan.
    With regard to the axial fan versions are available, which are characterized by high smoothness and quiet operation. In order nevertheless to absorb any vibrations of the axial fan and to avoid their transmission to the wrist of the wearer elastic damping elements 13 may be provided which are arranged in the contact areas between a housing 12 receiving the axial fan and the holder 11. 8a and 8b show possible embodiments of these damping elements 13, which can be formed for example by thin rubber slats and, for example, as edge-side strip slats (Fig. 8a) or as Ecklamellen (Fig. 8b) can be executed. These damping elements 13 also absorb impact forces caused by wearing on the hand. In this way, the bearing of the axial fan is spared.
    As already mentioned, the bracelet 17 provided according to the invention can also serve as a carrier for other devices 14, such as watches with additional functions ("smart watches") or for portable communication devices. FIG. 9 shows approximately the use of a cooling device according to the invention with a smartwatch. The cooling device according to the invention and the additional device 14 are located on opposite sides of the bracelet 17. It is possible to use the same components for the cooling device and the additional device 14. For example, the power supply 8 provided for the air flow generator 1 can also serve as the power supply of the additional device 14, or the power supply provided for the additional device 14 as the power supply 8 for the air flow generator 1.
    As can be seen from FIG. 10, the cooling device according to the invention can also be provided with pulse and / or temperature sensors 15, which are connected to the control unit 7. These pulse and / or temperature sensors 15 measure the skin and / or the ambient temperatures and, using the measured values with the aid of the control unit 7, can set cooling times, cooling duration and cooling phases in such a way that an optimum subjective cooling effect is achieved. Also moisture meter, position sensors and the like can be provided and their data are used to optimize the subjective cooling effect. These sensors and the aforementioned pulse and / or temperature sensors 15 can be installed in the extensions 10, in the holder 11 or in other parts of the bracelet 17. In Fig. 11, a further embodiment of the side suction opening 2 spanning lamellae 6 is shown , The mutually parallel arranged in the form of fins 6 protect the axial flow fan designed as a flow generator 1 against the ingress of harmful small parts and a suitable design before splashing, but let the incoming air pass unhindered.
    Another embodiment of a cooling device according to the invention with a designed as a piezo fan air flow generator 1 will be explained with reference to FIGS. 12 to 18. The piezo-fan is arranged in a holder 11, which is provided on its with the bracelet closed 17 outwardly oriented side with a cover 4, which forms at least one lateral suction opening 2 with the holder 11. The holder 11 may further be provided with a nozzle-shaped discharge opening 18 through which the air flow generated by the air flow generator 1 exits. On the side of the holder 11 which is oriented inwards with the bracelet 17 closed, inwardly projecting extensions 10 are arranged, which again serve as spacers for the skin surface 5 when the bracelet 17 is applied. In such an embodiment, the outflow opening 18 between two of the extensions 10 be arranged so that the extensions 10 enclose the air flow at least in sections.
    As shown in FIG. 13, the nozzle-shaped discharge opening 18 can also be made longer, so that it also acts as a spacer, wherein the discharged air flow is deflected through the nozzle-shaped outflow opening 18 so that the generated air flow parallel to the skin surface. 5 emerges from the discharge opening 3 and the skin surface 5 lapped cooling.
    14 shows a sectional view of a further embodiment of an extension 10 with a nozzle-shaped discharge opening 3, which is designed so that the generated air flow again exits parallel to the skin surface 5 from the discharge opening 3 and the skin surface 5 flows around cooling. In this embodiment, the extension 10 encloses the generated air flow entirely.
    15 and 16 show sectional views of an embodiment according to the invention with a designed as a piezo fan air flow generator 1 and a further embodiment of the extensions 10, which have in the embodiment shown a plurality of nozzle-shaped discharge openings 3, wherein the generated air flow in turn parallel to the skin surface 5 from the discharge openings 3 exits and the skin surface 5 lapped cooling. Also in this embodiment, the extension 10 encloses the generated air flow entirely and forms a discharge space until it emerges at the discharge openings 3.
    17 shows a sectional view of an embodiment according to the invention with a blower designed as a piezoelectric fan 1 and another embodiment of an extension 10 with a nozzle-shaped discharge opening 3, wherein the discharge opening 3 is again designed so that the generated air flow parallel to the skin surface. 5 emerges from the discharge opening 3 and the skin surface 5 lapped cooling. Furthermore, a further embodiment of the suction opening 2 can be seen, which is now located on the side of the holder 11 which is oriented inwards when the bracelet 17 is closed. With the bracelet 17 closed, air is sucked in along the skin surface 5, which enters the cooling device through the intake opening 2. As a result, it is accelerated abruptly by the running as a piezo fan air flow generator 1 and exits through the nozzle-shaped extension 10 again from the cooling device. The nozzle-shaped extension 10 also serves as a spacer in order to ensure a sufficient spacing of the holder 11 from the skin surface 5 and thus to keep the suction opening 2 clear.
    FIG. 18 shows an embodiment comparable to FIG. 17 but symmetrical. Once again, when the bracelet 17 is closed, air is drawn in along the skin surface 5, which subsequently enters the cooling device through the intake opening 2. Subsequently, it is jerkily accelerated by the designed as a piezo fan air flow generator 1 and exits through the nozzle-shaped extension 10 again from the cooling device. However, the nozzle-shaped extension 10 is now designed symmetrically and outputs the cooling air flow on both sides of the cooling device in opposite directions. The extension 10 also serves as a spacer in order to ensure a sufficient spacing of the holder 11 from the skin surface 5 and thus to keep the suction opening 2 clear.
    The invention thus provides a portable cooling device that can be made very small and compact and thus inconspicuous about in the professional field can be worn under appropriate clothing. The device according to the invention is also robust and resistant and thus suitable for everyday use and has a lower power consumption compared to conventional devices and thus has longer operating times.
    LIST OF REFERENCES: 1 air flow generator 2 suction opening 3 discharge opening 4 cover 5 skin surface 6 lamellae 7 control unit 8 power supply 9 shirt sleeves 10 extensions 11 holder 12 housing 13 damping elements 14 additional device 15 pulse and / or temperature sensors 16 charge socket 17 bracelet 18 outflow opening
    权利要求:
    Claims (10)
    [1]
    1. Portable cooling device with a bracelet [17] and a on the bracelet [17] arranged cooler, characterized in that the cooler is designed as an air flow generator (1) for a directed in an outflow direction of the radiator air flow, wherein the air flow generator [1 ] in a on the bracelet (17) attached or molded support (11) is arranged, which has at least one projecting in the outflow projection (10) which extends at least partially within the air flow or the air flow at least partially enclosing.
    [2]
    2. Portable cooling device according to claim 1, characterized in that the holder (11) is provided on its with closed bracelet (17) outwardly oriented side with a cover (4) with the holder (11) at least one lateral suction port ( 2) trains.
    [3]
    3. Portable cooling device according to claim 1 or 2, characterized in that the air flow generator (1) is designed as a piezo fan.
    [4]
    4. Portable cooling device according to one of claims 1 to 3, characterized in that the at least one extension (10) is nozzle-shaped.
    [5]
    5. Portable cooling device according to claim 1 or 2, characterized in that the air flow generator (1) is designed as an axial fan, which is mounted in an opening of a running as a bearing plate holder (11) with the bearing plate vertical axis of rotation.
    [6]
    6. Portable cooling device according to claim 5, characterized in that a plurality of extensions (10) are provided, which are designed as perpendicular to the clear cross-section of the closed bracelet (17) extending webs.
    [7]
    7. Portable cooling device according to claim 6, characterized in that the webs are curved.
    [8]
    8. Portable cooling device according to one of claims 1 to 7, characterized in that the at least one extension (10) is designed to conduct heat.
    [9]
    9. Portable cooling device according to one of claims 1 to 8, characterized in that the bracelet [17] with a control unit [7] is provided, which is connected to the realization of on and off cycles with the air flow generator (1).
    [10]
    10. Portable cooling device according to claim 9, characterized in that the bracelet (17) with pulse and / or temperature sensors (15) is provided, which are connected to the control unit (7). Kliment & Henhapel Patent Attorneys OG
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    CN203016017U|2012-12-21|2013-06-26|王玉岫|Hot and cold double-temperature bracelets|
    CN103961204A|2013-10-21|2014-08-06|深圳天赋健医疗器械科技有限公司|Head-mounted no-bag miniature semiconductor physical cooling ice belt|
    CN203634153U|2013-10-24|2014-06-11|德赛电子有限公司|Adjustable intelligent wrist strap|
    CN103876402A|2014-04-14|2014-06-25|魏国营|Multifunctional integrated bracelet and realizing method thereof|WO2019151637A1|2018-02-05|2019-08-08|주식회사 디자인넥스트|Cooling control module, and wrist cooling band, neck cooling band, and wearable cooling device including same|
    KR101990984B1|2018-02-05|2019-06-27|주식회사 디자인넥스트|Cooling controlling module, wrist cooling band and wearable cooling apparatus having the same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50750/2014A|AT516054B1|2014-10-20|2014-10-20|Portable device for cooling|ATA50750/2014A| AT516054B1|2014-10-20|2014-10-20|Portable device for cooling|
    CN201580060004.1A| CN106998835B|2014-10-20|2015-10-20|Portable cooling device|
    EP15793684.0A| EP3209155B1|2014-10-20|2015-10-20|Wearable apparatus for cooling|
    US15/519,950| US20170319380A1|2014-10-20|2015-10-20|Wearable apparatus for cooling|
    AU2015336918A| AU2015336918A1|2014-10-20|2015-10-20|Wearable apparatus for cooling|
    KR1020177009557A| KR20170071490A|2014-10-20|2015-10-20|Wearable apparatus for cooling|
    ES15793684.0T| ES2694356T3|2014-10-20|2015-10-20|Portable cooling device|
    PCT/AT2015/050262| WO2016061603A1|2014-10-20|2015-10-20|Wearable apparatus for cooling|
    JP2017518321A| JP6797792B2|2014-10-20|2015-10-20|Portable cooling device|
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