• 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:
    The present invention relates to the technical field of illumination, particularly to a high PAR maintenance type of high-voltage sodium lamp with a start-assisting switch, which includes an outer glass tube and a discharge tube provided on the inner side of the outer glass tube and provided coaxially with the outer glass tube. The surface of the discharge tube is provided with metal wire. Both the left end and the right end of the outer glass shell are provided with seal plate through high-temperature sealing. The seal plate is provided with a conductive slice. One end of the discharge tube is connected through left inner conductive support to the conductive slice on the left end. The other end of the discharge tube is connected through the start-assisting switch assembly to the conductive slice on the right end. The high-voltage sodium lamp of the present invention can be quickly lighted up through the temperature control switch, and has the advantages of good start-up performance, nice luminous effect, strong stability, long lifetime, high-temperature resistance, good high-voltage resistance property, and is safe and reliable, not prone to explode.
    公开号:NL2019049A
    申请号:NL2019049
    申请日:2017-06-12
    公开日:2017-07-26
    发明作者:Qian Song
    申请人:Plusrite Electric (China) Co Ltd；
    IPC主号:
    专利说明:

    HIGH PAR MAINTENANCE TYPE HIGH-VOLTAGE SODIUM LAMP WITH
    START-ASSISTING SWITCH
    Technical Field [0001] The present invention relates to the technical field of illumination, particularly to a high PAR maintenance type of high-voltage sodium lamp with a start-assisting switch.
    Background [0002] Along with the on-going development of the agriculture facilities, the artificial light source is used more and more widely to supplement light for the plant, so as to facilitate the photosynthesis of the plant, such that the aims of increasing the production and yield and shortening the growth cycle of the plant can be achieved. At present, using high-voltage sodium lamp for illuminating the plant is a common phenomenon. In the plant illumination, the plant is very sensitive to the light in a wavelength range of 400 to 700nm in the radiation spectrum. The light within this wavelength range is named as Photosynthetically Available Radiation (hereinafter, PAR).
    [0003] The high-voltage sodium lamp is the gas discharge lamp with the highest luminous efficiency among HID light sources, hi order to make the high-voltage sodium lamp have a better luminous effect and longer lifetime, discharge tube is charged with buffer gas with a high pressure (for example, xenon). However, under certain external conditions, the higher the pressure of the buffer gas, the higher is the requirement of pulsed high-voltage provided by external circuit to light up the bulb. When the high-voltage sodium lamp starts up, the ballast circuit will provide a pulsed high-voltage of 1-5KV to light up the lamp. In practice, there is a chance that the high-voltage sodium lamp cannot be lighted up by some of the ballast circuits.
    [0004] In order to meet the demand of agriculture illumination better, such high inner gas pressure requires a higher light-up pulse to start up the lamp. Thus, in practical production, a trade-off should be made between the gas pressure and the good start-up of the lamp. In order to light up the lamp, the inner gas pressure in the arc tube must be lowered, such that the agriculture luminous effect is affected somehow. Meanwhile, the high-voltage sodium lamp for agriculture illumination available in the domestic and abroad market generally is used together with a high-frequency electronic ballast. Nevertheless, there are numerous kinds of electronic ballasts. When the high-voltage sodium lamp is charged with high gas pressure, with some electronic ballasts, the lamp is difficult to start up or even cannot start up.
    [0005] At the same time, after high-voltage sodium lamp is lighted up, the discharge temperature of the discharge tube in the high-voltage sodium lamp increases gradually. After about 15 minutes, the lamp is in the working state, and parameters become steady. At this time, the axis temperature of the discharge tube of the high-voltage sodium lamp is about 4500K, and the wall temperature of the discharge tube is about 1500K. The temperature between the discharge tube and the outer shell is 500-I500K. If the selected material has a poor high-temperature resistant property, the lifetime of the high-voltage sodium lamp is prone to be shortened.
    Summary [0006] The technical problem to be solved by the present invention is ,to overcome the defects in the prior art. A high PAR maintenance type of high-voltage sodium lamp with the start-assisting switch is provided, which can be lighted up quickly through the temperature control switch, and has a good start-up performance, a nice luminous effect, a strong stability, and a long lifetime.
    [0007] Technical solutions used by the present invention to solve the above technical problem are as follows. A high PAR maintenance type of high-voltage sodium lamp with a start-assisting switch includes an outer glass tube and a discharge tube which is provided on the inner side of the outer glass tube and is provided coaxially with the outer glass tube. The surface of the discharge tube is provided with metal wire. When the buffer gas with a high pressure is charged into the discharge tube of the high-voltage sodium lamp, the discharge tube is printed with one metal wire. After powered on, the electrode on the high-voltage sodium lamp and the metal wire on the discharge tube form capacitor characteristic, and thus the discharge tube of the high-voltage sodium lamp is easy to be lighted up. Under the same external conditions, the larger the current passing through the metal wire, easier is to light up the high-voltage sodium lamp. Both the left end and the right end of the outer glass shell are provided with a seal plate through high-temperature sealing. The seal plate is provided with a conductive slice, one end of the discharge tube is connected through the left inner conductive support to the left end of the conductive slice. The other end of the discharge tube is connected through the start-assisting switch assembly to the right end of the conductive slice.
    [0008] Further, the start-assisting switch assembly is the electromagnetic induction switch assembly or the temperature control switch assembly.
    [0009] Further, the electromagnetic induction switch assembly includes the electromagnetic induction switch, the right inner conductive support, and the metal wrapping strip. One end of the right inner conductive support is connected to the conductive slice on the right side of outer glass shell. The other end of the right inner conductive support is connected to one end of the electromagnetic switch. The other end of the electromagnetic induction switch is connected to the start-assisting metal wrapping strip which is fixed on the right end of the discharge tube.
    [00010] Further, the electromagnetic induction switch includes insulated ceramic tubes that are provided side by side from top to bottom and metal core rod passing through inside the insulated ceramic tubes. The surface of each group of the insulated ceramic tube is winded with the coil. Both ends of the metal core rod inside the middle group of the insulated ceramic tube are connected through corresponding right inner conductive support to the electrode on the right side of the discharge tube and the conductive slice on the right side of the outer glass shell respectively. Corresponding ends of metal core rods inside the upper group and the lower group of insulated ceramic tubes are connected to the middle metal core rod through the corresponding beam with spot welding. The left ends of three groups of coils are twisted together and connected to the start-assisting metal wrapping strip which is fixed on the right end of the discharge tube.
    [00011] Further, the number of groups of insulated ceramic tubes in the electromagnetic induction switch is at least two.
    [00012] Further, the temperature control switch assembly includes the temperature control switch, the right inner conductive support, the metal connecting rod and the metal wrapping strip. One end of the right inner conductive support is connected to the conductive slice on the right side of outer glass shell. The other end of the right inner conductive support is connected to one end of the temperature control switch. The other end of the temperature control switch is connected through the metal connecting rod to start-assisting metal wrapping strip which is fixed on the right end of the discharge tube.
    [00013] Further, the temperature control switch includes a left metal support and a right metal support. One end of the left metal support is connected by riveting to a left ceramic pillar. The other end of is connected to the right inner conductive support. The left metal support is fixedly connected to double metal discs through spot welding. The end portion of double metal discs is provided with an upper metal contact.
    [00014] One end of the right metal support is connected by riveting to a right ceramic pillar. One side of the right ceramic pillar is provided with a lower metal contact which matches the upper metal contact. The other end of the right metal support is connected through the metal connecting the rod to the start-assisting metal wrapping strip which is fixed on the right end of the discharge tube.
    [00015] When the high-voltage sodium lamp is not working, both the upper metal contact and lower metal contact included in the temperature control switch are in a closed state. 0.1-15 minutes after the high-voltage sodium lamp is lighted up, the upper metal contact and lower metal contact are in the off state.
    [00016] Further, both ends of the discharge tube are provided with a fixing support symmetrically.
    [00017] Further, conductive slices on both ends of the outer glass shell are connected to the conductive fiber respectively through corresponding external conductive support group. The conductive fiber is made of a plurality of metal wires that are twisted together.
    [00018] Further, the high-voltage sodium lamp is a high PAR maintenance type of high-voltage sodium lamp or a double-ended high-voltage sodium lamp.
    [00019] Beneficial effects of the present invention are as follows. 1) The present invention can make the high-voltage sodium lamp be lighted up by the ballast circuit reliably. Meanwhile, the pressure of the buffer gas inside the discharge tube can be further raised. Thus, parameters like the luminous efficiency, the lumen maintenance, photosynthetic photon flux, etc. of the high-voltage sodium lamp are improved. At the same time, when buffer gas with too high pressure is charged into the discharge tube of the high-voltage sodium lamp, the situation that the high-voltage sodium lamp cannot be lighted up by some ballast circuits is avoided.
    [00020] 2) The present invention has the property of high-temperature resistance. The temperature between the discharge tube of the high-voltage sodium lamp and the outer glass shell is 500-1500K. The present invention can work under such working condition constantly and stably, avoiding failures due to the high temperature.
    [00021] 3) The present invention has the property of high-voltage resistance. When the high-voltage sodium lamp starts up, the ballast circuit will provide a pulsed high-voltage of about l-5kv. The present invention avoids failures due to the high voltage.
    [00022] 4) The present invention has the advantage of a long lifetime. After the high-voltage sodium lamp lights up, the discharging temperature of the discharge tube of the high-voltage sodium lamp increases gradually, such that the increased environmental temperature will make the temperature control switch trip off suddenly, avoiding the long-lasting powered-on working state. Therefore, lifetimes of the temperature control switch and the high-voltage sodium lamp are ensured.
    Brief Description of the Drawing [00023] Hereinafter, the present invention is further described with reference to the drawings and embodiments.
    [00024] Figure 1 is the structural schematic diagram of Embodiment 1 of the present invention; [00025] Figure 2 is the structural schematic diagram of Embodiment 2 of the present invention; [00026] Figure 3 is the structural schematic diagram of the electromagnetic induction switch of the present invention; [00027] Figure 4 is the structural schematic diagram of the temperature control switch of the present invention.
    [00028] In the Figures: 1. outer glass tube, 2. discharge tube, 3. seal plate, 4. conductive slice, 5. metal wire, 6. left inner conductive support, 8. right inner conductive support, 10. metal connecting rod, 11. metal wrapping strip, 12. metal core rod, 13. insulated ceramic tube, 14. coil, 15. beam, 16. left metal support, 17. left ceramic pillar, 18. upper metal contact, 19. right metal support, 20. right ceramic pillar, 21. lower metal contact, 22. conductive fiber, 24. double metal discs, 25. fixing support.
    Detailed Description of the Invention [00029] Hereinafter, the present invention is further described with reference to the drawings and preferred embodiments. These figures are all simplified schematic diagrams and are merely used to illustrate the basic structure of the present invention schematically. Thus, in the figures, only structures that are related to the present invention are shown.
    [00030] As shown in figures 1-4, a high PAR maintenance type of high-voltage sodium lamp with a start-assisting switch includes outer glass tube 1 and discharge tube 2 which is provided at the inner center of the outer glass tube 1 and is provided coaxially with the outer glass tube 1. The surface of discharge tube 2 is provided with metal wire 5. Each of the left end and the right end of outer glass shell 1 is provided with seal plate 3 by high-temperature sealing. Conductive slice 4 is provided inside seal plate 3. One end of discharge tube 2 is connected to the left end of conductive slice 4 through left inner conductive support 6. The other end of discharge tube 2 is connected to the right end of conductive slice 4 through the start-assisting switch assembly.
    [00031] The start-assisting switch assembly is an electromagnetic induction switch assembly or a temperature control switch assembly.
    [00032] The electromagnetic induction switch assembly includes the electromagnetic induction switch, right inner conductive support 8 and metal wrapping strip 11. One end of right inner conductive support 8 is connected to conductive slice 4 which is on the right side of outer glass shell 1. The other end of right inner conductive support 8 is connected to one end of the electromagnetic switch. The other end of the electromagnetic induction switch is connected to start-assisting metal wrapping strip 11 which is fixed on the right end of discharge tube 2.
    [00033] The electromagnetic induction switch includes a plurality of insulated ceramic tubes 13 that are provided side by side from top to bottom, where metal core rod 12 passes through inside the ceramic tubes. The surface of each group of insulated ceramic tube 13 is winded with coil 14. Both ends of metal core rod 12 inside the middle group of insulated ceramic tube 13 are respectively connected to the electrode on the right side of discharge tube 2 and conductive slice 4 on the right side of outer glass shell 1 through the corresponding right inner conductive support 8. The corresponding end of metal core rod 12 inside the upper group and the lower group of insulated ceramic tubes 13 are connected to middle metal core rod 12 through the corresponding beam 15 with spot welding. The left ends of three groups of coils 14 are twisted together and connected to start-assisting metal wrapping strip 11, which is fixed to the right end of discharge tube 2. The number of groups of insulated ceramic tubes 13 in the electromagnetic induction switch is at least two.
    [00034] The temperature control switch assembly includes the temperature control switch, right inner conductive support 8, metal connecting rod 10 and metal wrapping strip 11. One end of right inner conductive support 8 is connected to conductive slice 4 which is on the right side of outer glass shell 1. The other end of right inner conductive support 8 is connected to one end of the temperature control switch. The other end of the temperature control switch is connected through metal connecting rod 10 to start-assisting metal wrapping strip 11, which is fixed on the right end of discharge tube 2.
    [00035] Metal core rod 12 and insulated ceramic tube 13 pass through inside the electromagnetic induction switch. The surface of each group of insulated ceramic tubes is winded with coil 14. Each group of metal core rod is spot-welded together through the beam. One end of each group of the coil is twisted together and connected through metal wrapping strip 11 to metal wire 5 which is printed on discharge tube 2. When the circuit is on, under the effect of the electric field, the start-up circuit of the high-voltage sodium lamp will generate AC high-frequency pulsed high-voltage. When alternating current alters between the positive and negative half cycles, the energy will be stored and released by the electromagnetic induction switch of the coil. The energy obtained by the electromagnetic induction switch is added through start-assisting metal wrapping strip 11 to metal wire 11 printed on discharge tube 2, so as to help the electrode to reach the temperature of thermionic emission sooner, such that the entire lamp can be lighted up successfully.
    [00036] The temperature control switch includes left metal support 16 and right metal support 19. One end of left metal support 16 is connected by riveting to left ceramic pillar 17. The other end of left metal support 16 is connected to right inner conductive support 8. Left metal support 16 is fixedly connected to double metal discs 24 through spot welding. The end portion of double metal discs 24 is provided with upper metal contact 18.
    [00037] One end of right metal support 19 is connected by riveting to right ceramic pillar 20. One side of right ceramic pillar 20 is provided with lower metal contact 21 which matches the upper metal contact 18. The other end of right metal support 19 is connected through metal connecting rod 10 to start-assisting metal wrapping strip 11 which is fixed on the right end of discharge tube 2.
    [00038] When the high-voltage sodium lamp is not working, both upper metal contact 18 and lower metal contact 21 that are included in the temperature control switch are in the closed state. 0.1-15 minutes after the high-voltage sodium lamp is lighted up, upper metal contact 18 and lower metal contact 21 are in the off state.
    [00039] Two ends of discharge tube 2 are provided with fixing support 25 symmetrically. Conductive slice 4 on both ends of outer glass shell 1 is connected to conductive fiber 22 respectively through the corresponding external conductive support group. Conductive fiber 22 is made of a plurality of metal wires that are twisted together. The high-voltage sodium lamp is a high PAR maintenance type of high-voltage sodium lamp or double-ended high-voltage sodium lamp.
    Embodiment 1: [00040] As shown in figure 2 and figure 3, there are three groups of coils 14 in total. Each group is winded on insulated ceramic tube 13. One metal core rod 12 passes through inside each insulated ceramic tube 13. The insulation between each metal core rod 12 and each group of coils 14 is achieved through insulated ceramic tube 13. One metal core rod 12 in the middle is electrically connected. Both ends of the other two metal core rods 12 on both sides are electrically connected through two beams 15 respectively with spot welding. The electric circuit passes through start-assisting metal wrapping strip 11, such that original induced current in metal wire 5 printed on discharge tube 2 is enhanced.
    [00041] In the start-up process, AC high-frequency pulsed high-voltage which has a magnitude of kilovolt passes through metal core rod 12 of insulated ceramic tube 13. When the current alters between the positive and negative half cycles, the energy will be stored and released in three groups of coils 14, so as to assist the start-up.
    [00042] After the lamp is lighted up, the start-up circuit will stop working automatically, AC high-frequency pulsed high-voltage which has a magnitude of kilovolt will disappear. The system gets around of the directly electrical connection of the lamp electrode, so as to avoid affecting the luminous flux and shortening the lifetime of the high-voltage sodium lamp.
    Embodiment 2: [00043] As shown in Figure 1 and Figure 4, when the high-voltage sodium lamp is not in the working state, the temperature control switch is in the ON state, after high-voltage sodium lamp is powered on with the ballast circuit, the current passes through the temperature control switch to reach metal wire 5 on discharge tube 2. Under the effect of the electric field, the current generated by metal wire 5 further increases, the buffer gas inside outer glass tube 1 of high-voltage sodium lamp is quickly stimulated to be ionized so as to light up. after the high-voltage sodium lamp is lighted up, the temperature goes up gradually. Increased environmental temperature will make the temperature control switch trip off suddenly, so as to avoid the long-lasting powered-on working state. Thus, lifetimes of the temperature control switch and the high-voltage sodium lamp are ensured. The high-voltage sodium lamp of the present invention can be lighted up through the temperature control switch quickly and has advantages of good start-up performance, nice luminous effect, strong stability, and long lifetime.
    [00044] The above embodiments are merely used to illustrate the technical conception and features of the present invention. The purpose is to make the person with ordinary skill in the ait understand the content of the present invention and to practice the present invention, but not to limit the protection scope of the present invention. Any equivalent alteration or modification made according to the spirit of the present invention fall within the protection scope of the present invention.
    权利要求:
    Claims (10)
    [1]
    A high PAR-conserving-type high-voltage sodium lamp with a start-supporting switch, comprising: an outer glass tube (1); and a discharge tube (2) provided in the outer glass tube (1), characterized in that a surface of the discharge tube (2) is provided with a metal wire (5); sealing plates (3) which are sealed by high temperature and are provided on a left end and a right end, respectively, with the outer glass sleeve (1); conductive parts (4) are provided in the sealing plates (3); one end of the discharge tube (2) is connected to the conductive part (4) on the left via a left inner conductive support (6); and the other end of the discharge tube (2) is connected to the conductive part (4) on the right-hand side via a start-supporting switch assembly.
    [2]
    A high PAR-conserving-type high-voltage sodium lamp with the start-supporting switch according to claim 1, characterized in that the start-supporting switch assembly comprises an electromagnetic induction switch assembly or a temperature control switch assembly.
    [3]
    A high PAR-conserving-type high-voltage sodium lamp with the start-supporting switch according to claim 2, characterized in that the electromagnetic induction switch assembly comprises: an electromagnetic induction switch; a right inner conductive support (8); and a metal sheath strip (11), wherein one end of the right inner conductive support (8) is connected to the conductive member (4) on the right side of the outer glass tube (1); the other end of the right inner conductive support (8) is connected to one end of the electromagnetic switch; and the other end of the electromagnetic induction switch is connected to the start-supporting metal sheath strip (11), which is attached to the right end of the discharge tube (2).
    [4]
    A high PAR-conserving-type high-voltage sodium lamp with the start-supporting switch according to claim 3, characterized in that the electromagnetic induction switch has a plurality of insulated ceramic tubes (13) side by side from the top to the bottom provided; a plurality of bars with a metal core (12) passing through the plurality of insulated ceramic tubes (13); a surface of each group of insulated ceramic tubes (13) is wrapped with a coil (14); two ends of the rods with a metal core (12) within a central group of insulated ceramic tubes (13) are connected, respectively, by a corresponding right inner conductive support (8), to an electrode on the right side of the discharge tube ( 2) and the conductive part (4) on the right side of the outer glass tube (1); corresponding ends of the rods with a metal core (12) within an upper group and a lower group of insulated ceramic tubes (13) are connected, via a corresponding beam (15), to the middle rod with metal core (12) using of spot welding; and left ends of three groups of coils (14) are twisted together and connected to the start-supporting metal sheath strip (11) attached to the right end of the discharge tube (2).
    [5]
    A high PAR-conserving type high-voltage sodium lamp with the start-supporting switch according to claim 3, characterized in that the number of groups of insulated ceramic tubes (13) in the electromagnetic induction switch is at least two.
    [6]
    A high PAR-conserving-type high-voltage sodium lamp with the start-supporting switch according to claim 2, characterized in that the temperature control switch assembly comprises: a temperature control switch; a right inner conductive support (8); a metal connecting rod (10); and a metal sheath strip (11), one end of the right inner conductive support (8) being connected to the conductive member (4) on the right side of the outer glass sleeve (1); the other side of the right inner conductive support (8) is connected to one end of the temperature control switch; and the other end of the temperature control switch is connected, via the metal connecting rod (10), to the start-supporting metal envelope strip (11), which is connected to the right end of the discharge tube (2).
    [7]
    A high PAR-conserving-type high-voltage sodium lamp with the start-supporting switch according to claim 6, characterized in that the temperature control switch comprises: a left metal support (16); and a right metal support (19), wherein one end of the left metal support (16) is connected by riveting to a left ceramic pillar (17); the other end of the left metal support (16) is connected to the right inner conductive support (8); the left metal support (10) is fixedly connected to double metal disks (24) by spot welding; an end portion of the double metal discs (24) is provided with an upper metal contact (18); one end portion of the right metal support (19) is connected by riveting to a right ceramic pillar (20); one side of the right-hand ceramic column (20) is provided with a lower metal contact (21) corresponding to the higher metal contact (18); the other side of the right metal support (19) is connected, by the metal connecting rod (10), to the start-supporting metal sheath strip (11), which is attached to the right end of the discharge tube (2); if the high-voltage sodium lamp is not working, both the upper metal contact (18) and the lower metal contact (21) included in the temperature control switch are in a closed state; after the high-voltage sodium lamp has been lit for 0.1-15 minutes, the upper metal contact (18) and the lower metal contact (21) are in a switched-off state.
    [8]
    A high PAR-conserving-type high-voltage sodium lamp with the start-supporting switch according to claim 1, characterized in that the two ends of the discharge tube (2) are symmetrically provided with a connecting support (25).
    [9]
    High-PAR-conserving-type high-voltage sodium lamp with the start-supporting switch according to claim 1, characterized in that the conductive parts (4) are connected to conductive fibers at both ends of the outer glass sleeve (1) respectively (22) by corresponding external conductive support groups; and the conductive fiber (22) is made of a plurality of metal wires twisted together.
    [10]
    A high-PAR-conserving-type high-voltage sodium lamp with the start-supporting switch according to claim 9, characterized in that the high-voltage sodium lamp is a high-voltage sodium lamp or a double-sided high-voltage sodium lamp of a high-PAR conservative type.
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    同族专利:
    公开号 | 公开日
    GB201708582D0|2017-07-12|
    GB2552738B|2019-04-17|
    GB2552738A|2018-02-07|
    NL2019049B1|2018-02-21|
    CA3023498A1|2017-12-21|
    CA3023498C|2019-12-31|
    RU2673561C1|2018-11-28|
    WO2017215185A1|2017-12-21|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN201620573390.6U|CN205752098U|2016-06-14|2016-06-14|High PAR sustainment rate type high-pressure mercury lamp|
    CN201610796640|2016-08-31|
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