• 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 retainer structure of the hermetic electric compressor according to the present invention includes a recess formed in the head, a discharge valve for opening and closing a discharge port formed at the bottom of the recess, a valve spring installed so as to quickly return the discharge valve to the upper portion of the discharge valve, and the valve. In the hermetic electric compressor which is installed on the top of the spring to limit the operation of the discharge valve and the valve spring and comprises a retainer to prevent the separation, the one end of the retainer to form a support coupled to the head groove, the retainer A retainer foot is formed at the other end of the retainer to be inserted into and seated in the head recess, and an elastic protrusion is formed at the end of the retainer foot so that the elastic protrusion is elastically supported in the recess when the retainer is inserted into the head recess. Is prevented from falling off and the retainer By getting signed it was to prevent the leakage of the refrigerant to improve the constraint of the valve device in advance.
    公开号:KR19990032778A
    申请号:KR1019970053925
    申请日:1997-10-21
    公开日:1999-05-15
    发明作者:이재헌
    申请人:구자홍；엘지전자 주식회사；
    IPC主号:
    专利说明:

    Retainer Structure of Hermetic Electric Compressor
    The present invention relates to a hermetic electric compressor applied to a refrigeration cycle using a refrigerant.
    In general, the hermetic electric compressor is applied to the stator when power is applied to the cluster through the power inlet terminal. When the rotor is rotated by the power applied to the stator, the crankshaft fitted with the rotor rotates. The rotation of the crankshaft causes the slide connected to the pin part of the crankshaft to move in parallel and linear motion due to the eccentricity of the crankshaft. In this parallel linear motion, the piston coupled to the slide reciprocates, and the reciprocating motion of the piston causes the refrigerant in the vessel to The refrigerant sucked into the cylinder through the valve, and the refrigerant sucked into the cylinder by the piston is compressed, and the high temperature and high pressure refrigerant is discharged out of the container.
    In this case, the valve device according to the related art has an inlet, an outlet, and an inlet valve for opening and closing the inlet at the head and the cylinder in which the groove is formed, and located at an opposite side of the inlet valve with the head at the center. A discharge valve, a valve spring for restricting the operation of the discharge valve, a retainer fixing the valve spring and the discharge valve on the valve spring and forming a moving space of the valve spring, forming a discharge volume on the retainer, and covering the valve device. It consists of a head cover. This is well illustrated in US Patent 4723896. Since then, each component has been simplified for the convenience of assembly and improved performance, and recently, it is also proposed in US Pat. No. 5,328,338 to replace the fixing role of the retainer by forming protrusions on the head cover. In particular, the fixing of the valve and the valve spring by the retainer is presented in US Patent 5209260. As shown in FIG. 1, when the refrigerant compressed in the cylinder pushes the discharge valve 2 through the discharge port 1, the valve spring 3 restricts the operation of the discharge valve 2, and the discharge valve 2 is discharged. Helps to return quickly. The valve spring 3 moves and is defined in the space of the retainer 4. The retainer 4 is seated on the support portion 10b of the groove 10a, and is fixed so that the valve spring 3 and the discharge valve 2 do not come off. The discharged refrigerant passes through the discharge volume of the head cover 20, and noise and vibration are attenuated through the discharge paths such as the discharge silencer and the loop pipe (not shown).
    In the figure, reference numeral 6 denotes a suction valve, and 10c denotes a valve seat surface.
    However, since the retainer 4 structure of the hermetic electric compressor according to the related art is fastened to the head 10 with only a predetermined support point 10b in the head 10, the retainer 4 is dropped from the head 10 after being fastened and discharge valve 2 and There is a problem in that the valve spring is not restrained and the valve device falls out in the groove 10a, causing direct leakage.
    Accordingly, an object of the present invention is to conceive in view of the above problems, the fastener to the valve groove in the head of the retainer is separated from the head to prevent the valve device from falling off and the retainer has a constant elastic fastening The present invention provides a retainer structure of a hermetic electric compressor which improves the restraint of the valve device.
    1 is an exploded perspective view showing a valve cover assembly of a hermetic electric compressor according to the related art.
    2 is a plan view showing a retainer structure of the hermetic electric compressor according to the present invention;
    (Explanation of symbols for the main parts of the drawing)
    2 ; Discharge valve 3; Valve spring
    10; Head 10a; Valve groove
    31; Retainer 31a; Support
    31b; Retainer foot 31c; Elastic protrusion
    The object of the present invention is a groove formed in the head, a discharge valve for opening and closing the discharge port formed in the bottom of the groove, a valve spring installed so that the discharge valve is quickly returned to the upper portion of the discharge valve, and the upper portion of the valve spring In the sealed electric compressor configured to include a retainer for limiting the operation of the discharge valve and the valve spring, and prevents the separation of the discharge valve, the support portion is coupled to the head recess at one end of the retainer, the other end of the retainer It is achieved by forming a retainer foot to be inserted and seated in the head recess, and forming an elastic protrusion at the end of the retainer foot.
    EMBODIMENT OF THE INVENTION Hereinafter, the retainer structure of the hermetic electric compressor by this invention is demonstrated according to the Example shown in an accompanying drawing.
    FIG. 2 is a plan view showing a retainer structure of the hermetic electric compressor according to the present invention. As shown in FIG. 2, a recess 10a formed in the head 10 and a discharge port formed at the bottom of the recess 10a are opened and closed. A discharge valve 2, a valve spring 3 installed above the discharge valve 2 so as to quickly return the discharge valve 2, and a discharge valve 2 and a valve spring installed above the valve spring 3; In the hermetic electric compressor configured to include the retainer (31) to limit the operation of the (3) and prevent the separation, the support 31a is coupled to the head recess at one end of the retainer 31, A retainer foot 31b is formed at the other end of the retainer 31 so as to be inserted and seated in the head recess 10a. An elastic protrusion 31c is formed at the end of the retainer foot 31b, so that the retainer 31 is formed. When inserted into the head recess 10a The elastic protrusion 31c elastically supports the inside of the recess 10a.
    The compression operation of the hermetic electric compressor according to the present invention is the same as the conventional one and will be omitted.
    In the present invention, when the retainer 31, which is a valve restrictor of the conventional hermetic compressor, is coupled to the head recess 10a, the support 31a of the retainer is coupled to the support point 10b of the head recess 10a, and the retainer 31 is provided. Twist the retainer foot 31b formed at the lower portion of the lower portion so that the retainer foot 31b is inserted into the head recess 10a with a constant elasticity, so that the head 10 has an elastic force to prevent the retainer 31 from falling off. To increase the restraint of the valve device.
    As described above, the retainer structure of the hermetic electric compressor according to the present invention is provided with a recess formed in the head, a discharge valve for opening and closing a discharge port formed at the bottom of the recess, and a discharge valve quickly returned to the upper portion of the discharge valve. In the hermetic electric compressor comprising a valve spring and a retainer installed above the valve spring to limit the operation of the discharge valve and the valve spring, and prevents separation, a support unit coupled to the head recess at one end of the retainer. A retainer foot formed at the other end of the retainer so as to be seated in the head recess, and an elastic protrusion formed at the end of the retainer foot, so that the elastic protrusion is elastic in the recess when the retainer is inserted into the head recess. To prevent the valve from falling off Since the retainer is fastened with a constant elasticity, it is possible to improve the restraint of the valve device to prevent leakage of the refrigerant in advance.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] A discharge valve for opening and closing a groove formed in the head, a discharge port formed at the bottom of the groove, a valve spring installed at an upper portion of the discharge valve so that the discharge valve can be quickly returned, and a discharge valve and valve spring installed at an upper portion of the valve spring. In the hermetic electric compressor configured to include a retainer for limiting the operation of the separation of the retainer, the support portion is coupled to the head groove at one end of the retainer, the other end of the retainer is inserted into the head groove in the retainer A retainer structure of a hermetic electric compressor, characterized by forming a retainer foot, wherein an elastic protrusion is formed at the end of the retainer foot to allow the elastic protrusion to elastically support the inside of the recess when the retainer is inserted into the head recess.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-10-21|Application filed by 구자홍, 엘지전자 주식회사
    1997-10-21|Priority to KR1019970053925A
    1997-10-21|Priority claimed from KR1019970053925A
    1999-05-15|Publication of KR19990032778A
    2000-03-02|Application granted
    2000-03-02|Publication of KR100241458B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970053925A|KR100241458B1|1997-10-21|Retainer Structure of Hermetic Electric Compressor|
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