A frame supporting structure for hermetic compressor

专利摘要:
The present invention relates to a frame support apparatus of a hermetic compressor compressor. In the present invention, the frame 20 is supported by the coil spring 40 in the sealed container. The upper end of the coil spring 40 is fixed to the stopper protrusion 30 of the stopper 24 mounted on the bottom surface of the frame 20. The stopper protrusion 30 has an inner insertion portion 32 inserted into the coil spring 40 and an insertion space in which an upper end of the coil spring 40 is positioned between the inner spring insertion portion 32. The guide cut 34 is provided to be connected to the upper end of the inner insertion portion 32 to form the 36. The guide cut 34 is formed such that an inner surface thereof faces an outer circumferential surface of the inner insertion portion 32 and surrounds an outer circumferential surface of the coil spring 40. A curved surface 35 is formed at the lower end of the inner circumferential surface of the guide cut 34 so that one side of the coil spring 40 is not caught. According to the present invention, it is possible to more reliably attenuate the vibration of the frame 20, the connection between the frame 20 and the coil spring 40 is firm.
公开号:KR20030043010A
申请号:KR1020010073966
申请日:2001-11-26
公开日:2003-06-02
发明作者:양용진
申请人:주식회사 엘지이아이；
IPC主号:

专利说明:

A frame supporting structure for hermetic compressor
[19] The present invention relates to a hermetic compressor, and more particularly, to a frame supporting apparatus of a hermetic compressor which minimizes vibration of the frame to increase the operational reliability of the compressor.
[20] 1 shows an internal configuration of a hermetic compressor according to the prior art. According to this, the sealed container 1 which consists of the upper container 1t and the lower container 1b is provided, and the frame 2 is provided in the inside of the said sealed container 1. The stator 3 is fixed to the frame 2, and the frame 2 is supported inside the sealed container 1 by a spring 2S.
[21] Here, the structure in which the frame 3 is supported by the spring 2S will be described in more detail with reference to FIG. 2. That is, the upper end of the spring 2S is inserted into the stopper protrusion 2 'provided on the lower surface of the frame 2 (more specifically, the lower surface of the stator 3). The lower end of the spring 2S is inserted into and fixed to the stopper protrusion 1b 'provided in the lower container 1b. Four springs 2S are used to support each of the four corners of the frame 2 for stable support of the frame 2.
[22] The crankshaft 5 is provided through the center of the frame 2. The crankshaft 5 is integrally provided with a rotor 4 and rotated together with the crankshaft 5 by electromagnetic interaction with the stator 3.
[23] An eccentric pin 5b is formed on the upper end of the crankshaft 5 so as to be eccentric with respect to the rotation center of the crankshaft 5. A counterweight 5c is formed on the opposite side to which the eccentric pin 5b is formed, and the crankshaft 5 is rotatably supported by the frame 2.
[24] An oil passage 5a is formed inside the crankshaft 5. The oil L provided on the bottom surface of the sealed container 1 is guided through the oil passage 5a to be delivered to the upper portion of the frame 2 and scattered. In addition, a pumping mechanism 5d for pumping the oil L to the oil passage 5a is installed at the lower end of the crankshaft 5.
[25] On the other hand, the cylinder 6 provided with the compression chamber 6 'inside is integrally molded with the said frame 2. As shown in FIG. In the compression chamber 6 ′, a piston 7 connected to the eccentric pin 5b of the crankshaft 5 and the connecting rod 8 is provided. At the front end of the cylinder 6, a valve assembly 9 for controlling the refrigerant flowing into and out of the compression chamber 6 'is installed. The head cover 10 is mounted on the valve assembly 9, and the head cover 10 is connected to the valve assembly 9 so that the suction muffler 11 can transfer refrigerant to the compression chamber 6 ′. It is installed.
[26] In the figure, reference numeral 12 denotes a suction pipe for transferring the refrigerant into the sealed container 1, and 13 denotes a discharge pipe for discharging the compressed refrigerant to the outside of the compressor.
[27] In the compressor having such a configuration, when the power is applied, the rotor 4 rotates with respect to the stator 3 by the electromagnetic interaction between the rotor 4 and the stator 3. ) And the crankshaft 5 is rotated integrally. When the crankshaft 5 rotates, the eccentric pin 5b eccentric with respect to the crankshaft 5 rotates in a circle, and the connecting rod 8 connected to the eccentric pin 5b is rotated. The piston 7 is linearly reciprocated while being driven along the eccentric pin 5b. As such, when the piston 7 linearly reciprocates in the compression chamber 6 ', the refrigerant is compressed.
[28] In the process of operating the compressor as described above, the frame 2 vibrates. There may be a number of causes for the frame 2 to vibrate, but most representative of them, the rotation of the rotor 4 and the crankshaft (5), and thus the reciprocating motion of the piston (7) Etc. can be mentioned. The vibration of the frame 2 generated as described above is attenuated by the spring 2S supporting the frame 2.
[29] However, the above-described prior art has the following problems.
[30] The spring 2S is simply inserted into the stopper protrusion 2 'provided on the lower surface of the frame 2 to support the frame 2. Therefore, the spring 2S can effectively absorb the external force acting in the longitudinal direction, but is vulnerable to the external force in the direction perpendicular to the longitudinal direction, that is, the arrow A in FIG. 2, so that the frame 2 vibrates violently. To be.
[31] The upper end of the spring 2S is not fixed to the frame 2 or the stopper protrusion 2 'and is simply in contact with each other, so that the lower portion of the frame 2 and the lower container 1b are not in contact with each other. If the spacing is relatively large, a problem arises in that the spring 2S is removed from the stopper protrusion 2 '.
[32] Accordingly, an object of the present invention is to solve the conventional problems as described above, and to minimize the lateral vibration of the spring supporting the frame.
[33] Another object of the invention is to make the connection between the frame and the spring stronger.
[34] Still another object of the present invention is to smoothly buffer the spring supporting the frame.
[1] 1 is a cross-sectional view showing the internal configuration of a hermetic compressor according to the prior art.
[2] Figure 2 is a detailed cross-sectional view showing a structure for supporting the frame in the hermetic compressor according to the prior art.
[3] Figure 3 is a partial cross-sectional view showing the configuration of a preferred embodiment of the frame supporting apparatus of the hermetic compressor according to the present invention.
[4] 4 is a state diagram used for explaining that the embodiment of the present invention operates.
[5] Explanation of symbols on the main parts of the drawings
[6] 1: hermetic container 1a: upper container
[7] 1b: lower container 2: frame
[8] 2S: Spring 2 ': Stopper protrusion
[9] 3: stator 4: rotor
[10] 5: crankshaft 6: cylinder
[11] 6 ': compression chamber 7: piston
[12] 8: Connecting Rod 9: Valve Assembly
[13] 10: head cover 11: suction muffler
[14] 20: frame 22: stator
[15] 24: stopper 26: bolt
[16] 30: stopper protrusion 32: inner insertion portion
[17] 34: guide cut 35: curved surface
[18] 36: insertion space 40: coil spring
[35] According to a feature of the present invention for achieving the above object, the present invention is a frame installed in the interior of the sealed container and having a vibration source, and the elastic to cushion the vibration with an elastic force while supporting the frame in the interior of the sealed container And a stopper protrusion installed on a lower surface of the frame and connected to an upper end of the elastic support member to support the load of the frame by the elastic support member, wherein the stopper protrusion is formed of the elastic support member. A guide cut formed at a predetermined interval between the inner insert portion inserted into the predetermined length and the inner insert portion so as to surround the outer circumferential surface of the elastic support member, and the guide cut and the inner insert portion are formed. Is formed in the upper end portion of the space is composed of the insertion groove that the upper end of the elastic support member is fitted.
[36] The elastic support member is a coil spring, and the insertion groove is formed in a ring shape to correspond to the winding of the upper end of the coil spring.
[37] The inner lower end of the guide cut is formed round.
[38] According to the frame support apparatus of the hermetic compressor according to the present invention having such a configuration, the vibration generated in the frame can be more reliably buffered, and the connection between the frame and the coil spring is more robust.
[39] Hereinafter, with reference to the accompanying drawings a preferred embodiment of the frame supporting apparatus of the hermetic compressor according to the present invention as described above will be described in detail.
[40] 3 is a cross-sectional view showing the configuration of a preferred embodiment of the frame supporting apparatus of the hermetic compressor according to the present invention. According to this, the frame 20 is installed inside the sealed container. The frame 20 is provided with various configurations of the hermetic compressor. For example, the rotor and the stator 22, the crankshaft, the connecting rod and the piston are installed. Here, the rotor, the crankshaft, the piston, etc. to generate a vibration in the frame 20 while rotating or linear reciprocating motion.
[41] A stator 22 is installed below the frame 20, and a stopper 24 having a predetermined length is installed side by side at both ends of the stator 22, and both ends of the bottom surface of the stopper 24 will be described below. The stopper protrusions 30 are respectively installed to face the bottom surface of the sealed container. A bolt 26 is provided through the stator 22 and the stopper 24 to fasten the stator 22 to the frame 20.
[42] A stopper protrusion 30 is installed in the bolt 26 extending downward through the stopper 24. The stopper protrusion 30 is to allow the upper end of the coil spring 40 to be described below to support the frame 20.
[43] The stopper protrusion 30 has an inner insertion portion 32 formed at the center thereof. The inner insertion portion 32 is a portion that is inserted into the coil spring 40, the bolt pressing groove 33 is formed on the upper portion based on the drawing. The bolt pressing groove 33 is formed to be recessed from the upper portion of the inner insertion portion 32 toward the lower portion so that the bolt 26 is press-fitted. The inner insertion portion 32 is formed to protrude downward based on the drawings.
[44] A guide cut 34 connected to the inner insertion part 32 and an upper end and positioned around the upper outer circumferential surface of the coil spring 40 is provided. The guide cut 34 is formed in a substantially cylindrical shape and has a curved surface 35 formed around the inner circumferential surface of the lower end thereof. The curved surface 35 is such that the winding of the coil spring 40 is not caught by the guide cut 34 during the buffering operation.
[45] An insertion space 36 is formed between the inner insertion portion 32 and the guide cut 34. An upper end of the coil spring 40 is located in the insertion space 36. An insertion groove 37 is formed in the upper portion of the insertion space 36, that is, the inner insertion portion 32 and the guide cut 34 are connected to the upper end of the coil spring 40. have. The insertion groove 37 is formed in a ring shape to correspond to one winding of the coil spring 40 so that the upper end of the coil spring 40 is fixed to the stopper protrusion 30.
[46] The coil spring 40 serves to attenuate the vibration by supporting the frame 20 in the sealed container. This coil spring 40 is used as many as can sufficiently support the frame 20, preferably four should support the portion corresponding to the inner edge of the frame 20.
[47] Hereinafter will be described the operation of the frame supporting apparatus of the hermetic compressor according to the present invention as described above.
[48] The spring 40 supports the four corners of the frame 20 with elasticity and serves to attenuate vibration generated in various components installed in the frame 30. That is, the upper end of the spring 40 is inserted into the insertion space 36 of the stopper protrusion 30 installed on the bottom surface of the frame 20.
[49] In the state where the upper end of the spring 40 is inserted into the insertion space 36, the uppermost winding of the spring 40 is fitted into the insertion groove 37 and fixed. The inner insertion portion 32 of the stopper protrusion 30 is inserted into the coil spring 40, and the guide cut 34 is positioned around the outer circumferential surface of the upper end of the coil spring 40.
[50] As such, when the compressor is driven while the frame 20 is supported by the coil spring 40, the coil spring 40 buffers the vibration generated in the frame 20.
[51] That is, when vibration occurs in the frame 20 in the vertical direction, the coil spring 40 absorbs vibration while elastically deforming to be compressed or extended in the direction of arrow A in FIG. 4.
[52] Of course, the frame 20 may generate vibrations in various directions. The vibration mainly generated may be a vibration in the vertical direction, and in some cases, a vibration in the arrow B direction may occur. At this time, the guide cut 34 guides the outer circumferential surface of the coil spring 40, thereby preventing the coil spring 40 from bending in the direction of arrow B.
[53] In addition, even when a relatively large vibration occurs in the frame 20, the connection between the coil spring 40 and the stopper protrusion 30 is not separated. This is because the uppermost winding of the coil spring 40 is press-fitted into the insertion groove 37 formed in the stopper protrusion 30.
[54] In addition, while the coil spring 40 is repeatedly compressed and stretched due to the vibration of the frame 20, the force in the direction of arrow B may be applied to the coil spring 40. At this time, one side of the coil spring 40 may be caught at the lower end of the guide cut 34. However, a curved surface 35 is formed on the lower inner circumferential surface of the guide cut 34 so that the coil spring 40 is caught by the guide cut 34 so that the coil spring 40 does not function properly. Will not occur.
[55] Frame supporting apparatus of the hermetic compressor according to the present invention as described above in detail is the outer circumferential surface of the coil spring for reducing the elastic force of the frame is guided by the guide cut of the stopper projection, so that the vibration in the transverse direction is smoothly attenuated vibration There is an advantage to be made.
[56] In addition, since the coil spring is fastened to the frame by the stopper protrusion, even if the vibration of the frame is severe, the connection between the coil spring and the frame is not damaged, thereby improving the operation reliability of the compressor.
[57] In addition, since the curved surface is formed on the guide cut so that the operation of the coil spring is not disturbed by the guide cut of the stopper protrusion, the operation of the coil spring is smoothly performed even under various forces.

权利要求:
Claims (3)
[1" claim-type="Currently amended] A frame installed inside the sealed container and having a vibration source;
An elastic support member for supporting the frame inside the hermetic container and cushioning vibration with elastic force;
Is installed on the lower surface of the frame is connected to the upper end of the elastic support member and comprises a stopper protrusion for supporting the load of the frame to the elastic support member,
The stopper protrusion has a guide cut formed at a predetermined interval between the inner insertion portion inserted into the elastic support member a predetermined length and the inner insertion portion positioned to surround the outer circumferential surface of the elastic support member; Frame supporting apparatus of the hermetic compressor, characterized in that formed in the upper end portion of the space formed by the guide cut and the inner insertion portion is inserted groove into which the upper end of the elastic support member is fitted.
[2" claim-type="Currently amended] The frame support apparatus of claim 1, wherein the elastic support member is a coil spring, and the insertion groove is formed in a ring shape so as to correspond to a winding of an upper end of the coil spring.
[3" claim-type="Currently amended] The frame supporting apparatus of claim 1 or 2, wherein the inner lower end of the guide cut is rounded.

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同族专利:

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公开号 | 公开日

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KR100432735B1|2004-05-24|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2001-11-26|Application filed by 주식회사 엘지이아이

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2001-11-26|Priority to KR10-2001-0073966A

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2003-06-02|Publication of KR20030043010A

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2004-05-24|Application granted

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2004-05-24|Publication of KR100432735B1

优先权:

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申请号 | 申请日 | 专利标题

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KR10-2001-0073966A|KR100432735B1|2001-11-26|2001-11-26|A frame supporting structure for hermetic compressor|