Compressor

Abstract

The utility model provides a compressor, and relates to the technical field of compressors. The compressor comprises a compressor body, an upper shell cover, a junction box cover and a special-shaped fastener, the upper shell cover is arranged on the compressor body, the junction box cover is arranged on the upper shell cover, a special-shaped hole is formed in the junction box cover, the special-shaped fastener is matched with the special-shaped hole in shape, and the special-shaped fastener penetrates through the special-shaped hole and is connected with the upper shell cover, so that the junction box cover can be prevented from rotating; and the universal management of the junction box cover is facilitated, and the material cost of the junction box cover is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a compressor. Background Art

[0002] The air conditioning compressor is generally installed in the outdoor unit and plays the role of compressing and driving the refrigerant in the air conditioning refrigerant circuit. The air conditioning compressor extracts the refrigerant from the low-pressure area, compresses it, and sends it to the high-pressure area for cooling and condensation. The heat is dissipated into the air through the heat sink, and the refrigerant changes from gas to liquid, and the pressure increases.

[0003] In air-conditioning compressors, the bolts usually used to install the junction box cover are cylindrical in structure. In order to achieve installation, the junction box cover must also have round holes that match the bolts. This matching structure makes it easy for the junction box cover to rotate around the axial direction of the bolts after installation.

[0004] In order to prevent the junction box cover from rotating around the axial direction of the bolt, an additional anti-rotation structure is currently designed on the junction box cover. For example, a protrusion is added to the outside of the junction box cover to prevent rotation, or a wedge is added to the bottom of the junction box cover to prevent rotation, or a double hole is opened on the junction box cover to prevent rotation. However, various types of anti-rotation structures are not conducive to the universal management of the junction box cover, and the addition of additional anti-rotation structures increases the overall material cost of the junction box cover. Utility Model Content

[0005] The objectives of the present application include, for example, providing a compressor that can prevent the junction box cover from rotating, and is beneficial to the universal management of the junction box cover, thereby reducing the material cost of the junction box cover.

[0006] This application can be implemented as follows:

[0007] The present application provides a compressor, which includes a compressor body, an upper shell cover, a junction box cover and a special-shaped fastener, wherein the upper shell cover is arranged on the compressor body, the junction box cover is arranged on the upper shell cover, a special-shaped hole is opened on the junction box cover, the special-shaped fastener matches the shape of the special-shaped hole, and the special-shaped fastener passes through the special-shaped hole and is connected to the upper shell cover.

[0008] Optionally, the special-shaped fastener is a special-shaped screw, which passes through the special-shaped hole and is connected to the upper shell cover.

[0009] Optionally, the cross-sectional shape of the special-shaped screw in a direction perpendicular to its own extension direction is elliptical or polygonal.

[0010] Optionally, the special-shaped screw is provided with two opposite thread surfaces and two opposite smooth surfaces, and the two thread surfaces and the two smooth surfaces are staggered along the circumference of the special-shaped screw.

[0011] Optionally, the junction box cover is provided with a first top surface and a first side surface connected to the first top surface, the special-shaped hole is opened on the first top surface, the first top surface and the first side surface form a first chamber for the special-shaped screw to pass through, the first chamber is connected to the special-shaped hole, the special-shaped screw is perpendicular to the first top surface, and the compressor also includes a nut, the nut is threadably matched with the special-shaped screw, and the nut is tightly pressed against the first top surface.

[0012] Optionally, a washer is sleeved on the special-shaped screw, and the washer is located between the nut and the first top surface.

[0013] Optionally, the junction box cover is further provided with a second top surface and a second side surface connected to the second top surface, the second top surface and the second side surface form a second chamber for accommodating the sealed terminal, wherein the first top surface is lower than the second top surface.

[0014] Optionally, the special-shaped fastener is provided with a matching portion, the matching portion is inserted into the special-shaped hole, and the matching portion matches the shape of the special-shaped hole.

[0015] Optionally, the cross-sectional shape of the matching portion in a direction perpendicular to the extension direction of the special-shaped fastener is elliptical or polygonal.

[0016] Optionally, a snap-in hole is provided on the upper shell cover, and the special-shaped fastener passes through the special-shaped hole and snaps in the snap-in hole;

[0017] Alternatively, a threaded hole is provided on the upper shell cover, and the special-shaped fastener passes through the special-shaped hole and is screwed to the threaded hole;

[0018] Alternatively, the special-shaped fastener passes through the special-shaped hole and is welded to the upper shell cover.

[0019] The beneficial effects of the compressor of the present application include, for example: in order to prevent the terminal box cover from rotating, a compressor is designed, which includes a compressor body, an upper shell cover, a terminal box cover and a special-shaped fastener, the upper shell cover is arranged on the compressor body, the terminal box cover is arranged on the upper shell cover, a special-shaped hole is opened on the terminal box cover, the special-shaped fastener matches the shape of the special-shaped hole, the special-shaped fastener passes through the special-shaped hole and is connected to the upper shell cover, due to the cooperation between the special-shaped fastener and the special-shaped hole, the terminal box cover is not easy to rotate around the special-shaped fastener, thereby solving the problem of rotation of the terminal box cover, and at the same time, since there is no need to set an additional anti-rotation structure on the terminal box cover, it is beneficial to the universal management of the terminal box cover and reduces the material cost of the terminal box cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram for illustrating the matching relationship between the junction box cover and the special-shaped fastener in the embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of a junction box cover in an embodiment of the present application;

[0023] Figure 3 This is a first schematic diagram of a special-shaped fastener in an embodiment of the present application;

[0024] Figure 4 This is a second schematic diagram of the special-shaped fastener in the embodiment of the present application.

[0025] Icons: 1-upper shell cover; 2-junction box cover; 21-special-shaped hole; 22-first top surface; 23-first side surface; 24-second top surface; 25-second side surface; 26-wire outlet; 3-special-shaped fastener; 31-threaded surface; 32-smooth surface; 33-matching part; 4-nut; 5-washer. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0030] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0031] It should be noted that, in the absence of conflict, the features in the embodiments of the present application may be combined with each other.

[0032] In air-conditioning compressors, the bolts usually used to install the junction box cover are cylindrical, and the junction box cover is provided with a circular hole that matches the bolt. The matching structure of the cylindrical bolt and the circular hole will cause the junction box cover to easily rotate around the axial direction of the bolt after installation.

[0033] In order to prevent the junction box cover from rotating around the axial direction of the bolt, an additional anti-rotation structure is currently designed on the junction box cover, for example, a protrusion is added to the outside of the junction box cover to prevent rotation, or a wedge is added to the bottom of the junction box cover to prevent rotation, or a double hole is opened on the junction box cover to prevent rotation, but the above-mentioned anti-rotation structures of various types are not conducive to the universal management of the junction box cover, and the addition of the additional anti-rotation structure also increases the overall material cost of the junction box cover. The embodiment of the present application provides a compressor that can prevent the junction box cover from rotating, and is conducive to the universal management of the junction box cover and reduces the material cost of the junction box cover.

[0034] Please refer to Figure 1-Figure 3 The compressor provided in the embodiment of the present application includes a compressor body (not shown), an upper shell cover 1, a terminal box cover 2 and a special-shaped fastener 3. The upper shell cover 1 is arranged on the compressor body, the terminal box cover 2 is arranged on the upper shell cover 1, and a special-shaped hole 21 is opened on the terminal box cover 2. The special-shaped fastener 3 matches the shape of the special-shaped hole 21, and the special-shaped fastener 3 passes through the special-shaped hole 21 and is connected to the upper shell cover 1.

[0035] It should be pointed out that the opening direction of the shaped hole 21 is perpendicular to the horizontal plane, the cross-sectional area of ​​the shaped fastener 3 in the direction perpendicular to its own extension is basically consistent with the opening area of ​​the shaped hole 21, and the shaped fastener 3 passes through the shaped hole 21 from top to bottom and is connected to the upper shell cover 1.

[0036] Due to the cooperation between the special-shaped fastener 3 and the special-shaped hole 21, the junction box cover 2 is not easy to rotate around the special-shaped fastener 3, which solves the problem of rotation of the junction box cover 2. At the same time, since there is no need to set an additional anti-rotation structure on the junction box cover 2, it is beneficial to the universal management of the junction box cover 2 and reduces the material cost of the junction box cover 2.

[0037] In some embodiments, the special-shaped fastener 3 is a special-shaped screw rod, which passes through the special-shaped hole 21 and is connected to the upper shell cover 1 .

[0038] It should be noted that the special-shaped screw is a screw with a non-circular cross-sectional shape perpendicular to its own extension direction. The special-shaped screw passes through a special-shaped hole 21 that matches its own shape and is connected to the upper shell cover 1, which can prevent the junction box cover 2 from rotating around the special-shaped screw, thereby improving the stability of the junction box cover 2.

[0039] The cross-sectional shape of the special-shaped screw in the direction perpendicular to its own extension direction is elliptical or polygonal.

[0040] Exemplarily, the cross-sectional shape of the profiled screw in the direction perpendicular to its own extension is an ellipse, or the cross-sectional shape of the profiled screw in the direction perpendicular to its own extension is a rectangle, or the cross-sectional shape of the profiled screw in the direction perpendicular to its own extension is a polygon with more than five sides.

[0041] It is understandable that the cross-sectional shape of the special-shaped screw in the direction perpendicular to its own extension direction can be determined according to actual working conditions, as long as the cooperation between the special-shaped screw and the special-shaped hole 21 can prevent the junction box cover 2 from rotating around the special-shaped screw.

[0042] The special-shaped screw is provided with two opposite threaded surfaces 31 and two opposite smooth surfaces 32 .

[0043] It should be pointed out that the two opposite smooth surfaces 32 are arranged in parallel, and along the circumference of the special-shaped screw, the threaded surfaces 31 and the smooth surfaces 32 are arranged alternately, and the two threaded surfaces 31 and the two smooth surfaces 32 form the outer side surfaces of the special-shaped screw, so that the cross-sectional shape of the special-shaped screw in the direction perpendicular to its own extension direction is non-circular.

[0044] In other embodiments, the special-shaped screw is provided with more than three threaded surfaces 31 and more than three smooth surfaces 32, the number of the threaded surfaces 31 and the smooth surfaces 32 are the same, the threaded surfaces 31 and the smooth surfaces 32 form the outer side surfaces of the special-shaped screw, and can also make the cross-sectional shape of the special-shaped screw perpendicular to its own extension direction non-circular.

[0045] It is understandable that the number of the threaded surfaces 31 and the smooth surfaces 32 can be determined according to actual working conditions, as long as the cross-sectional shape of the special-shaped screw perpendicular to its own extension direction is non-circular.

[0046] In some embodiments, the junction box cover 2 has a first top surface 22 , the special-shaped hole 21 is opened on the first top surface 22 , and the special-shaped screw is perpendicular to the first top surface 22 ; the compressor also includes a nut 4 , the nut 4 is threadably matched with the special-shaped screw, and the nut 4 is tightly pressed against the first top surface 22 .

[0047] It should be pointed out that the first top surface 22 is parallel to the horizontal plane, the top of the special-shaped screw is located above the first top surface 22, the nut 4 is sleeved on the top of the special-shaped screw, and the nut 4 is tightly pressed against the first top surface 22, further preventing the junction box cover 2 from rotating relative to the special-shaped screw, and can also prevent the junction box cover 2 from falling off the special-shaped screw.

[0048] In some embodiments, a washer 5 is sleeved on the special-shaped screw, and the washer 5 is located between the nut 4 and the first top surface 22 .

[0049] By providing the washer 5 , when the nut 4 is tightened, the nut 4 is pressed against the surface of the washer 5 , so as to prevent the nut 4 from causing damage to the junction box cover 2 .

[0050] The junction box cover 2 is further provided with a first side surface 23 connected to the first top surface 22 . The first top surface 22 and the first side surface 23 form a first chamber for the special-shaped screw to pass through. The first chamber is communicated with the special-shaped hole 21 .

[0051] In some embodiments, the junction box cover 2 is further provided with a second top surface 24 and a second side surface 25 connected to the second top surface 24 , and the first top surface 22 is lower than the second top surface 24 .

[0052] The second top surface 24 and the second side surface 25 form a second chamber for accommodating the sealed terminal. The first chamber and the second chamber are independent of each other. Of course, in other embodiments, the first chamber can also be connected to the second chamber as long as it does not affect the cooperation between the special-shaped screw and the special-shaped hole 21.

[0053] When the junction box cover 2 is installed on the upper shell cover 1, the surface of the second side surface 25 away from the second top surface 24 is in contact with the top surface of the upper shell cover 1, wherein the surface shape of the second side surface 25 away from the second top surface 24 can match the top surface shape of the upper shell cover 1, so that the surface of the second side surface 25 away from the second top surface 24 is in contact with the top surface of the upper shell cover 1; the first top surface 22 is lower than the second top surface 24, and when installing the special-shaped screw, the length of the special-shaped screw can be reduced, thereby reducing the material cost.

[0054] In addition, the first side surface 23 is provided with a wire outlet 26, through which the wires connected to the sealed terminal can pass through; the shape of the wire outlet 26 can be determined according to the actual working conditions, for example, the opening shape of the wire outlet 26 is circular, rectangular or trapezoidal, as long as the wires connected to the sealed terminal can pass through.

[0055] Please refer to Figure 4 In some embodiments, the special-shaped fastener 3 is provided with a matching portion 33 , and the matching portion 33 is penetrated into the special-shaped hole 21 , and the matching portion 33 matches the shape of the special-shaped hole 21 .

[0056] It should be noted that the matching portion 33 is only arranged in the middle part of the special-shaped fastener 3, and the other parts of the special-shaped fastener 3 can be cylindrical; the cross-sectional area of ​​the matching portion 33 in the extension direction perpendicular to the special-shaped fastener 3 is basically consistent with the opening area of ​​the special-shaped hole 21. When the special-shaped fastener 3 passes through the special-shaped hole 21, the matching portion 33 cooperates with the special-shaped hole 21, so that the junction box cover 2 is not easy to rotate around the special-shaped fastener 3.

[0057] Exemplarily, the portion of the special-shaped fastener 3 located above the mating portion 33 is a threaded segment, the nut 4 is threadedly mated with the threaded segment, and the nut 4 is pressed against the first top surface 22, so that the junction box cover 2 is not easy to fall off from the top of the special-shaped fastener 3; of course, the nut 4 may not be provided in other embodiments.

[0058] In some embodiments, the cross-sectional shape of the matching portion 33 in the direction perpendicular to the extension direction of the special-shaped fastener 3 is elliptical or polygonal.

[0059] Exemplarily, the cross-sectional shape of the mating portion 33 in the direction perpendicular to the extension direction of the special-shaped fastener 3 is an ellipse, or the cross-sectional shape of the mating portion 33 in the direction perpendicular to the extension direction of the special-shaped fastener 3 is a rectangle, or the cross-sectional shape of the mating portion 33 in the direction perpendicular to the extension direction of the special-shaped fastener 3 is a polygon with more than five sides.

[0060] It is understandable that the cross-sectional shape of the fitting portion 33 in the direction perpendicular to the extension of the special-shaped fastener 3 can be determined according to actual working conditions, as long as the fitting portion 33 and the special-shaped hole 21 can prevent the junction box cover 2 from rotating around the special-shaped fastener 3 .

[0061] In some embodiments, a snap-fitting hole is provided on the upper shell cover 1 , and the special-shaped fastener 3 passes through the special-shaped hole 21 and snaps into the snap-fitting hole.

[0062] There is interference fit between the special-shaped fastener 3 and the snap-in hole, so that the special-shaped fastener 3 is stably connected to the upper shell cover 1, and the special-shaped fastener 3 is not easy to move relative to the upper shell cover 1, thereby ensuring the stability of the junction box cover 2.

[0063] In some embodiments, a threaded hole is formed on the upper shell cover 1 , and the special-shaped fastener 3 passes through the special-shaped hole 21 and is screwed to the threaded hole.

[0064] The special-shaped fastener 3 is screwed with the threaded hole, so that the special-shaped fastener 3 and the upper shell cover 1 are stably connected, and the special-shaped fastener 3 is not easy to move relative to the upper shell cover 1, thereby ensuring the stability of the junction box cover 2.

[0065] In some embodiments, the special-shaped fastener 3 passes through the special-shaped hole 21 and is welded to the upper shell cover 1 .

[0066] The special-shaped fastener 3 is welded to the upper shell cover 1 , so that the special-shaped fastener 3 and the upper shell cover 1 are stably connected, and the special-shaped fastener 3 is not easy to move relative to the upper shell cover 1 , thereby ensuring the stability of the junction box cover 2 .

[0067] To summarize, an embodiment of the present application provides a compressor, which includes a compressor body, an upper shell cover 1, a junction box cover 2 and a special-shaped fastener 3. The special-shaped fastener 3 passes through the special-shaped hole 21 on the junction box cover 2 and is stably connected to the upper shell cover 1. Due to the cooperation between the special-shaped fastener 3 and the special-shaped hole 21, the junction box cover 2 is not easy to rotate around the special-shaped fastener 3, which solves the problem of rotation of the junction box cover 2. At the same time, since there is no need to set an additional anti-rotation structure on the junction box cover 2, it is beneficial to the universal management of the junction box cover 2 and reduces the material cost of the junction box cover 2.

[0068] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A compressor, characterized in that: The invention comprises a compressor body, an upper shell cover (1), a junction box cover (2) and a special-shaped fastener (3); the upper shell cover (1) is arranged on the compressor body; the junction box cover (2) is arranged on the upper shell cover (1); a special-shaped hole (21) is provided on the junction box cover (2); the special-shaped fastener (3) matches the shape of the special-shaped hole (21); the special-shaped fastener (3) passes through the special-shaped hole (21) and is connected to the upper shell cover (1).

2. The compressor according to claim 1, characterized in that The special-shaped fastener (3) is a special-shaped screw rod, which passes through the special-shaped hole (21) and is connected to the upper shell cover (1).

3. The compressor according to claim 2, characterized in that The cross-sectional shape of the special-shaped screw in a direction perpendicular to its own extension direction is elliptical or polygonal.

4. The compressor according to claim 2, characterized in that The special-shaped screw is provided with two opposite thread surfaces (31) and two opposite smooth surfaces (32), and the two thread surfaces (31) and the two smooth surfaces (32) are staggered along the circumference of the special-shaped screw.

5. The compressor according to claim 2, characterized in that The junction box cover (2) is provided with a first top surface (22) and a first side surface (23) connected to the first top surface (22); the special-shaped hole (21) is opened on the first top surface (22); the first top surface (22) and the first side surface (23) form a first chamber for the special-shaped screw to pass through; the first chamber is communicated with the special-shaped hole (21); and the special-shaped screw is perpendicular to the first top surface (22); The compressor further comprises a nut (4), wherein the nut (4) is threadably matched with the special-shaped screw, and the nut (4) is tightly pressed against the first top surface (22).

6. The compressor according to claim 5, characterized in that A washer (5) is sleeved on the special-shaped screw rod, and the washer (5) is located between the nut (4) and the first top surface (22).

7. The compressor according to claim 5, characterized in that The junction box cover (2) is also provided with a second top surface (24) and a second side surface (25) connected to the second top surface (24), wherein the second top surface (24) and the second side surface (25) enclose a second chamber for accommodating the sealed terminal, wherein the first top surface (22) is lower than the second top surface (24).

8. The compressor according to claim 1, characterized in that The special-shaped fastener (3) is provided with a matching portion (33), the matching portion (33) is inserted into the special-shaped hole (21), and the matching portion (33) matches the shape of the special-shaped hole (21).

9. The compressor according to claim 8, characterized in that The cross-sectional shape of the matching portion (33) in a direction perpendicular to the extension direction of the special-shaped fastener (3) is elliptical or polygonal.

10. The compressor according to claim 1, characterized in that The upper shell cover (1) is provided with a snap-fitting hole, and the special-shaped fastener (3) passes through the special-shaped hole (21) and is snap-fitted with the snap-fitting hole; Alternatively, a threaded hole is provided on the upper shell cover (1), and the special-shaped fastener (3) passes through the special-shaped hole (21) and is screwed to the threaded hole; Alternatively, the special-shaped fastener (3) passes through the special-shaped hole (21) and is welded to the upper shell cover (1).

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