End cover assembly for compressor and compressor

Abstract

The end cover assembly for the compressor comprises a gasket and an end cover, the gasket abuts against a shell cover, a center hole is formed in the gasket, the center hole is arranged on the periphery of a wiring terminal in a sleeved mode, and the edge of the center hole is provided with a fence part in a protruding mode along the end face, away from the shell cover, of the gasket. The fence part is used for surrounding the wiring terminal; the end, away from the center hole, of the fence part is provided with a flange outwards in the radial direction. The end cover is provided with a containing cavity, one end of the containing cavity is open to form an opening, the edge of the opening abuts against the gasket, and the inner circumferential wall of the containing cavity is in interference fit with the turned-over edge of the fence part; the end cover is fixed on the shell cover through a bolt; a wire passing hole is formed in the side wall of the end cover, and an avoiding notch is formed in the position, facing the wire passing hole, of the fence part. According to the utility model, the gasket is provided with the fence part which is used for enclosing the wiring terminal, so that the sealing performance and the waterproof performance of the end cover assembly can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor technical field especially a kind of end cover assembly for compressor and compressor. BACKGROUND

[0002] The wiring terminal of compressor mainly includes end cover, positioning screw rod, nut, gasket and three wiring terminals, three wiring terminals pass through end cover and gasket, and three wiring terminals are covered by end cover, and three wiring terminals are connected by external lead, and gasket and end cover cooperate to waterproof wiring terminal.The overall of existing end cover gasket is plane structure, and it is fixed and sealed by the effect of gasket being pressed by end cover during installation, however, when end cover is not fixed firmly or gasket is poor in sealing property after long time use, waterproof performance is poor. SUMMARY

[0003] Therefore, the utility model discloses a kind of end cover assembly for compressor and compressor, by being provided with fence part for surrounding wiring terminal on gasket, the sealing property and waterproof property of end cover assembly can be effectively improved.

[0004] In order to realize the above-mentioned purpose, the utility model embodiment provides a kind of end cover assembly for compressor, the compressor includes shell cover, and the shell cover is provided with wiring terminal;The end cover assembly includes gasket, end cover, the gasket is butted on the shell cover, the gasket is equipped with center hole, the center hole is sleeved on the outer periphery of the wiring terminal, the edge of the center hole is raised with fence part along the end face of the gasket away from the shell cover, and the fence part is used to surround the wiring terminal;The end away from the center hole of the fence part is provided with flange radially outward;The end cover has accommodating cavity, one end of the accommodating cavity is open to form opening, the edge of the opening is butted on the gasket, and the inner peripheral wall of the accommodating cavity and the flange of the fence part form interference fit;The end cover is fixed on the shell cover by bolt;Flange is provided with avoiding gap on the position of the fence part towards the wire hole.

[0005] Therefore, according to the end cover assembly for compressor of the utility model embodiment, by being provided with fence part for surrounding wiring terminal on gasket, the waterproof performance of wiring terminal can be effectively improved, and flange is provided radially outward on the end away from center hole of fence part, so that when end cover is butted on gasket, accommodating cavity in end cover and flange of fence part form interference fit, the connection sealing property between end cover and gasket and the waterproof property of end cover assembly can be further improved.

[0006] As an implementation form, the included angle formed by the two ends of the avoiding gap and the line of the center hole is β, and β≤120°.

[0007] As an implementation form, the wire passing hole cooperates with the avoiding gap to define a wire passing space suitable for the power line to pass through, the power line sequentially passes through the wire passing hole and the avoiding gap and forms an electrical connection with the terminal, and the power line and the wire passing hole form an interference fit. Thus, the end cover assembly for the compressor according to the embodiment of the present application can effectively prevent rainwater outside the end cover assembly from entering the inside of the end cover assembly through the interference fit between the power line and the wire passing hole, and further improves the sealing and waterproof performance of the end cover assembly in cooperation with the connection tightness between the gasket and the shell cover.

[0008] As an implementation form, the height of the fence part along the axial direction of the center hole is h, the height of the accommodating cavity along the axial direction of the center hole is H, and the relationship between h and H satisfies 0.2≤h / H≤0.35.

[0009] As an implementation form, the radial section of the flange is in the shape of a circular arc or a reversed hook.

[0010] As an implementation form, the shell cover is provided with a screw rod, the gasket is provided with a first through hole for the screw rod to pass through, the end cover has a bolt cavity, one end of the bolt cavity away from the gasket is provided with a second through hole for the screw rod to pass through, the screw rod is threadedly connected with a nut, and the nut abuts on the edge of the second through hole away from the bolt cavity.

[0011] As an implementation form, a gasket is arranged between the nut and the end cover.

[0012] As an implementation form, the gasket is an insulating gasket.

[0013] The second aspect of the embodiment of the present application provides a compressor comprising the end cover assembly for the compressor according to any one of the above embodiments. The compressor according to the embodiment of the present application can effectively improve the sealing and waterproof performance of the end cover assembly by arranging the fence part for surrounding the terminal on the gasket.

[0014] In order to better understand and implement, the present application will be described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a structural schematic view of an end cover assembly for a compressor according to an embodiment of the present application;

[0016] Figure 2It is the exploded schematic view of the end cover assembly for the compressor of the utility model embodiment;

[0017] Figure 3 It is the second structure schematic view of the end cover assembly for the compressor of the utility model embodiment;

[0018] Figure 4 It is Figure 3 It is the cross section schematic view of A-A direction shown;

[0019] Figure 5 It is the first partial cross section schematic view between the end cover and the gasket of the utility model embodiment;

[0020] Figure 6 It is the first structure schematic view of the gasket of the utility model embodiment;

[0021] Figure 7 It is the second structure schematic view of the gasket of the utility model embodiment;

[0022] Figure 8 It is the partial schematic view of the fence part of the gasket of the utility model embodiment;

[0023] Figure 9 It is the second partial cross section schematic view between the end cover and the gasket of the utility model embodiment.

[0024] Mark explanation:

[0025] 10, shell cover; 11, terminal; 12, screw rod; 20, end cover; 21, containing cavity; 22, wire hole; 23, second through hole; 30, gasket; 31, center hole; 32, fence part; 33, flange; 34, avoiding gap; 35, first through hole. Specific implementation

[0026] To further illustrate each embodiment, the utility model provides with the drawing. These drawings are part of the utility model disclosure, which is mainly used to illustrate the embodiment, and can be explained with the related description of the specification to explain the operation principle of the embodiment. With reference to these contents, those skilled in the art should understand other possible implementation modes and advantages of the utility model.

[0027] In the related art, the terminal of the compressor mainly includes an end cover, a positioning screw rod, a nut, a gasket and three terminals, the three terminals pass through the end cover and the gasket, then the three terminals are covered by the end cover, and the three terminals are connected by external wires, the gasket and the end cover cooperate to prevent water from entering the terminal. The overall structure of the existing end cover gasket is a flat structure, and the gasket is compressed and fixed by the end cover during installation to achieve the sealing effect, however, when the end cover is not fixed firmly or the gasket is old and has poor sealing performance after long-term use, the waterproof performance is poor.

[0028] Therefore, the end cover assembly for the compressor and the compressor according to the embodiments of the present application can effectively improve the sealing performance and the waterproof performance of the end cover assembly.

[0029] Please refer to Figures 1 to 8 The end cover assembly for the compressor according to the embodiments of the present application comprises a gasket 30 and an end cover 20, the gasket 30 is abutted on the shell cover 10, the gasket 30 is provided with a center hole 31, the center hole 31 is sleeved on the outer periphery of the wiring terminal 11, the edge of the center hole 31 is provided with a fence part 32 which protrudes from the end face of the gasket 30 away from the shell cover 10, the fence part 32 is used for surrounding the wiring terminal 11, one end of the fence part 32 away from the center hole 31 is provided with a flange 33 which is radially outward, the end cover 20 is provided with a receiving cavity 21, one end of the receiving cavity 21 is open to form an opening, the edge of the opening is abutted on the gasket 30, and the inner peripheral wall of the receiving cavity 21 is in interference fit with the flange 33 of the fence part 32, the end cover 20 is fixed on the shell cover 10 by bolts, the side wall of the end cover 20 is provided with a wire hole 22, and the fence part 32 is provided with a relief gap 34 at the position facing the wire hole 22, wherein the gasket 30 is an insulating gasket 30.

[0030] Therefore, the end cover assembly for the compressor according to the embodiments of the present application can effectively improve the sealing performance and the waterproof performance of the end cover assembly.

[0031] Further, in the embodiment of the utility model, the wire hole 22 cooperates with the avoiding gap 34 to define a wire passing space suitable for the power cord, the power cord passes through the wire hole 22 and the avoiding gap 34 in turn and forms electrical connection with the terminal 11, and the power cord and the wire hole 22 form interference fit. It can be understood that the end cover assembly for compressor according to the embodiment of the utility model can effectively prevent rainwater outside the end cover assembly from entering the inside of the end cover assembly through the interference fit between the power cord and the wire hole 22, and further improves the sealing and waterproof performance of the end cover assembly in cooperation with the connection tightness between the gasket 30 and the shell cover 10.

[0032] Optionally, in some embodiments of the utility model, the included angle formed by the two ends of the avoiding gap 34 and the center hole 31 is β, and β≤120°. In addition, in these embodiments, the height of the fence portion 32 along the axial direction of the center hole 31 is h, the height of the accommodating cavity 21 along the axial direction of the center hole 31 is H, and the relationship between h and H satisfies: 0.2≤h / H≤0.35.

[0033] Optionally, in some embodiments of the utility model, the radial section of the flange 33 is arc-shaped or inverted hook-shaped. It can be understood that in these embodiments, by designing the radial section of the flange 33 as arc-shaped or inverted hook-shaped, when the accommodating cavity 21 of the end cover 20 is sleeved on the flange 33, the inner side wall of the accommodating cavity 21 can be more tightly interference-fitted with the flange 33.

[0034] Optionally, in some embodiments of the utility model, the shell cover 10 is provided with a screw rod 12, the gasket 30 is provided with a first through hole 35 for the screw rod 12 to pass through, the end cover 20 has a bolt cavity, one end of the bolt cavity away from the gasket 30 is provided with a second through hole 23 for the screw rod 12 to pass through, and the screw rod 12 is threadedly connected with a nut, and the nut abuts on the end edge of the second through hole 23 away from the bolt cavity. The nut and the end cover 20 are provided with a gasket therebetween.

[0035] It is worth understanding that in some embodiments of the utility model, the outer circumferential side of the fence portion 32 can also not be provided with a flange. As shown in FIG. 6, in these embodiments, the outer circumferential side of the fence portion 32 is not provided with a flange, but the accommodating cavity 21 of the end cover 20 is interference-fitted with the fence portion 32, so that the interference fit between the end cover 20 and the fence portion 32 can also achieve the effect of improving the sealing and waterproof performance of the end cover assembly. Figure 9

[0036] The following will be described in combination with the drawings. Figures 1 to 8 ​It is to be understood that the following examples are merely illustrative and are not to be construed as limiting the present application.

[0037] As Figures 1 to 8 shown in the drawings, the present embodiment provides an end cover assembly for a compressor, the compressor comprising a shell cover 10, the shell cover 10 being provided with a wiring terminal 11; the end cover assembly comprising a gasket 30, an end cover 20, the gasket 30 abutting on the shell cover 10, the gasket 30 being provided with a central hole 31, the central hole 31 being sleeved on the outer periphery of the wiring terminal 11, the edge of the central hole 31 being provided with a fence portion 32 protruding away from the end face of the gasket 30 away from the shell cover 10, the fence portion 32 being used for surrounding the wiring terminal 11; the end away from the central hole 31 of the fence portion 32 being provided with a flange 33 radially outward; the end cover 20 has a receiving cavity 21, one end of the receiving cavity 21 being open to form an opening, the edge of the opening abutting on the gasket 30, and the inner peripheral wall of the receiving cavity 21 and the flange 33 of the fence portion 32 form an interference fit; the end cover 20 is fixed on the shell cover 10 by bolts; the side wall of the end cover 20 is provided with a wire hole 22, and the fence portion 32 is provided with a relief notch 34 towards the wire hole 22. Wherein, the gasket 30 is an insulating gasket 30.

[0038] Further, in the present embodiment, the wire hole 22 cooperates with the relief notch 34 to define a wire passing space suitable for the power cord to pass through, the power cord sequentially passes through the wire hole 22 and the relief notch 34 and forms an electrical connection with the wiring terminal 11, and the power cord and the wire hole 22 form an interference fit. In addition, the included angle formed by the two ends of the relief notch 34 and the line connecting the central hole 31 is β, β = 120°. In addition, in these embodiments, the height of the fence portion 32 along the axial direction of the central hole 31 is h, the height of the receiving cavity 21 along the axial direction of the central hole 31 is H, and the relationship between h and H satisfies the relationship: h / H = 0.35.

[0039] In the present embodiment, the radial cross section of the flange 33 is in the shape of a circular arc. The shell cover 10 is provided with a screw rod 12, the gasket 30 is provided with a first through hole 35 for the screw rod 12 to pass through, the end cover 20 has a bolt cavity, the end of the bolt cavity away from the gasket 30 is provided with a second through hole 23 for the screw rod 12 to pass through, the screw rod 12 is threadedly connected with a nut, and the nut abuts on the end edge of the second through hole 23 away from the bolt cavity. Wherein, a gasket is provided between the nut and the end cover 20.

[0040] The following will be describedFigures 1 to 8 The detailed description is according to one specific embodiment of the end cover assembly for the compressor of the utility model, it is worth understanding that the following examples are only exemplary illustration, and cannot be understood as the limitation of the utility model.

[0041] As Figures 1 to 8 shown, the embodiment provides an end cover assembly for a compressor, the compressor comprising a shell cover 10, the shell cover 10 is provided with a terminal 11, the end cover assembly comprises a gasket 30, an end cover 20, the gasket 30 is abutted on the shell cover 10, the gasket 30 is provided with a center hole 31, the center hole 31 is sleeved on the outer periphery of the terminal 11, the edge of the center hole 31 is protruded with a fence part 32 along the end face of the gasket 30 away from the shell cover 10, the fence part 32 is used to surround the terminal 11, the end of the fence part 32 away from the center hole 31 is provided with a turn-up 33 radially outward, the end cover 20 has a containing cavity 21, one end of the containing cavity 21 is open to form an opening, the edge of the opening is abutted on the gasket 30, and the inner circumferential wall of the containing cavity 21 is in interference fit with the turn-up 33 of the fence part 32, the end cover 20 is fixed on the shell cover 10 by bolts, the sidewall of the end cover 20 is provided with a wire hole 22, and the fence part 32 is provided with a avoiding notch 34 towards the position of the wire hole 22, wherein the gasket 30 is an insulating gasket 30.

[0042] Further, in the embodiment, the wire hole 22 cooperates with the avoiding notch 34 to define a wire passing space suitable for the power cord to pass, the power cord sequentially passes through the wire hole 22 and the avoiding notch 34 and forms electrical connection with the terminal 11, and the power cord is in interference fit with the wire hole 22. In addition, the included angle between the two ends of the avoiding notch 34 and the line formed by the center hole 31 is β, β=90°. In addition, in these embodiments, the height of the fence part 32 along the axial direction of the center hole 31 is h, the height of the containing cavity 21 along the axial direction of the center hole 31 is H, and the relationship between h and H satisfies the relationship: h / H=0.30.

[0043] In the embodiment, the radial section of the turn-up 33 is in the shape of a reversed hook. The shell cover 10 is provided with a screw rod 12, the gasket 30 is provided with a first through hole 35 for the screw rod 12 to pass through, the end cover 20 has a bolt cavity, the end of the bolt cavity away from the gasket 30 is provided with a second through hole 23 for the screw rod 12 to pass through, the screw rod 12 is threadedly connected with a nut, and the nut is abutted on the end edge of the second through hole 23 away from the bolt cavity. Wherein, the nut and the end cover 20 are provided with a gasket.

[0044] The following is combined Figures 1 to 8 The following is a detailed description of a specific embodiment of the end cap assembly for a compressor according to the present invention. It is worth understanding that the following embodiment is merely illustrative and should not be construed as limiting the present invention.

[0045] like Figures 1 to 8 As shown, this embodiment provides an end cap assembly for a compressor. The compressor includes a housing cover 10, on which a terminal block 11 is provided. The end cap assembly includes a gasket 30 and an end cap 20. The gasket 30 abuts against the housing cover 10. The gasket 30 has a central hole 31, which is fitted around the outer periphery of the terminal block 11. The edge of the central hole 31 has a raised enclosure portion 32 along the end face of the gasket 30 away from the housing cover 10. The enclosure portion 32 is used to surround the terminal block 11. The fence portion 32 has a flange 33 radially outwardly arranged at the end furthest from the central hole 31; the end cap 20 has a receiving cavity 21, one end of which is open to form an opening, the edge of which abuts against the gasket 30, and the inner peripheral wall of the receiving cavity 21 forms an interference fit with the flange 33 of the fence portion 32; the end cap 20 is fixed to the shell cover 10 by bolts; a wire-passing hole 22 is provided on the side wall of the end cap 20, and the fence portion 32 has a clearance notch 34 facing the wire-passing hole 22. The gasket 30 is an insulating gasket 30.

[0046] Furthermore, in this embodiment, the wire passage hole 22 and the clearance notch 34 cooperate to define a wire passage space suitable for the power line to pass through. The power line passes through the wire passage hole 22 and the clearance notch 34 in sequence and forms an electrical connection with the terminal 11. An interference fit is formed between the power line and the wire passage hole 22. In addition, the angle formed by the lines connecting the two ends of the clearance notch 34 and the central hole 31 is β, where β = 70°. Furthermore, in these embodiments, the height of the enclosure portion 32 along the axial direction of the central hole 31 is h, and the height of the receiving cavity 21 along the axial direction of the central hole 31 is H. The relationship between h and H is: h / H = 0.20.

[0047] In this embodiment, the radial cross-section of the flange 33 is arc-shaped. A screw 12 is provided on the cover 10, and a first through hole 35 for the screw 12 to pass through is provided on the gasket 30. The end cap 20 has a bolt cavity, and a second through hole 23 for the screw 12 to pass through is provided at the end of the bolt cavity away from the gasket 30. A nut is threaded onto the screw 12, and the nut abuts against the edge of the second through hole 23 away from the bolt cavity. A washer is provided between the nut and the end cap 20.

[0048] The utility model embodiment second aspect provides a kind of compressor, it includes the end cover assembly for compressor of any embodiment above. According to the compressor of the utility model embodiment, by being provided with the fence portion 32 for surrounding wiring terminal 11 on gasket 30, the sealing property and waterproof property of end cover assembly can be effectively improved.

[0049] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0050] The above-described embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the utility model for the end cover assembly of compressor and compressor. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model.

Claims

1. An end cover assembly for a compressor, characterized in that: the compressor comprises a shell cover, the shell cover is provided with a terminal; the end cover assembly comprises a gasket and an end cover, the gasket is abutted on the shell cover, the gasket is provided with a central hole, the central hole is sleeved on the outer periphery of the terminal, the edge of the central hole is provided with a fence portion protruding from the end face of the gasket away from the shell cover, the fence portion is used for surrounding the terminal; the end away from the central hole of the fence portion is provided with a turned edge radially outward; the end cover has a receiving cavity, one end of the receiving cavity is open to form an opening, the edge of the opening is abutted on the gasket, and the inner peripheral wall of the receiving cavity is in interference fit with the turned edge of the fence portion; the end cover is fixed on the shell cover by a bolt; the side wall of the end cover is provided with a wire hole, and the fence portion is provided with a relief gap towards the wire hole.

2. The end cover assembly for the compressor according to claim 1, characterized in that: the included angle formed by the two ends of the relief gap and the line connecting the central hole is β, and β≤120°.

3. The end cover assembly for the compressor according to claim 1, characterized in that: the wire hole cooperates with the relief gap to define a wire passing space suitable for the power cord to pass through, the power cord sequentially passes through the wire hole and the relief gap and forms an electrical connection with the terminal, and the power cord and the wire hole are in interference fit.

4. The end cover assembly for the compressor according to claim 1, characterized in that: the height of the fence portion in the axial direction of the central hole is h, the height of the receiving cavity in the axial direction of the central hole is H, and the relationship between h and H satisfies: 0.2≤h / H≤0.

35.

5. The end cover assembly for the compressor according to claim 1, characterized in that: the radial section of the turned edge is in the shape of a circular arc or a reversed hook.

6. The end cover assembly for the compressor according to claim 1, characterized in that: the shell cover is provided with a screw, the gasket is provided with a first through hole for the screw to pass through, the end cover has a bolt cavity, the end of the bolt cavity away from the gasket is provided with a second through hole for the screw to pass through, the screw is threadedly connected with a nut, and the nut is abutted on the end edge of the second through hole away from the bolt cavity.

7. The end cover assembly for the compressor according to claim 6, characterized in that: a gasket is arranged between the nut and the end cover.

8. The end cover assembly for the compressor according to claim 1, characterized in that: the gasket is an insulating gasket.

9. A compressor, characterized in that: comprising the end cover assembly for the compressor according to any one of claims 1 to 8. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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