End cover assembly for compressor and compressor

Abstract

The end cover assembly for the compressor comprises an end cover body, an overload protector and a temperature control protector, the end cover body is of a cover body structure with an opening in one end, and the overload protector is arranged on the inner end face of the end cover body; an elastic sleeve is arranged on the inner end face of the end cover body, and the temperature control protector is movably connected with the elastic sleeve in a clamped mode. A sealing wiring terminal is arranged on the outer end face of the end cover body, and the sealing wiring terminal, the overload protector and the temperature control protector are connected in series to form an electric loop. According to the end cover assembly for the compressor, the temperature control protector can be rapidly assembled on the inner end face of the end cover body, the wiring operation can be completed only by connecting the sealing wiring terminal to the outer end face of the end cover body, the wiring operation is greatly simplified, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to an end cover assembly for a compressor and a compressor. Background Art

[0002] The structure of a rotary compressor mainly consists of an upper cover, a lower cover, a housing, a motor fixed inside to provide rotational power, and a pump body for realizing refrigerant compression. Among them, R290 refrigerant, as a commonly used refrigerant medium for compressors, has more environmentally friendly advantages due to its excellent physical properties such as no chlorofluorocarbons, an ODP coefficient of zero, a GWP coefficient as low as 3, and a critical temperature as high as 96.8°C. Therefore, R290 refrigerant will become one of the future development trends.

[0003] However, due to the highly flammable and explosive characteristics of R290 refrigerant, there are also certain safety hazards. To ensure the safety performance of the compressor, manufacturers usually adopt a dual protector to improve the safety performance of the compressor. Specifically, a current temperature protector is set inside the end cover and a temperature control protector is set on the outer end face of the end cover. However, due to the small size of the external temperature control protector, it needs to be combined and wired with a sealed terminal, and then fixed on the upper cover with a terminal cover, resulting in low installation operation efficiency and high production cost. Summary of the Utility Model

[0004] Based on this, the purpose of the present utility model is to overcome the deficiencies of the prior art and provide an end cover assembly for a compressor and a compressor. According to the end cover assembly for a compressor of the present utility model, the temperature control protector can be quickly assembled on the inner end face of the end cover body, and only a sealed terminal needs to be connected to the outer end face of the end cover body to complete the wiring operation, greatly simplifying the wiring operation and improving the installation efficiency.

[0005] To achieve the above purpose, the first aspect of the embodiment of the present utility model provides an end cover assembly for a compressor, including an end cover body, an overload protector, and a temperature control protector; the end cover body is a cover body structure with one end open, the overload protector is arranged on the inner end face of the end cover body; an elastic sleeve is arranged on the inner end face of the end cover body, and the temperature control protector is movably clamped with the elastic sleeve; a sealed terminal is arranged on the outer end face of the end cover body, and the sealed terminal is connected in series with the overload protector and the temperature control protector to form an electrical circuit.

[0006] Thus, for the end cover assembly for a compressor according to an embodiment of the present utility model, by providing an overload protector and a temperature control protector on the inner end face of the end cover body, and a sealed terminal on the outer end face of the end cover body, once the end cover assembly is assembled with the compressor main body, the wiring operation can be completed only by connecting the sealed terminal on the outer end face of the end cover body, which can greatly simplify the wiring operation of the end cover assembly, improve the installation efficiency, and reduce the production cost. In addition, for the end cover assembly for a compressor according to an embodiment of the present utility model, by providing an elastic sleeve on the inner end face of the end cover body, the temperature control protector can be quickly snapped onto the elastic sleeve, effectively improving the installation efficiency of the temperature control protector.

[0007] As an implementation manner, the elastic sleeve is a cylindrical structure with both ends open, and one end face of the elastic sleeve abuts and is fixed on the inner end face of the end cover body.

[0008] As an implementation manner, elastic cards are inclined inwards towards the end cover body on the inner side wall of the elastic sleeve. The outer diameter of the temperature control protector is smaller than the inner diameter of the elastic sleeve, and a circular groove is radially recessed on the outer peripheral wall of the temperature control protector. The temperature control protector is inserted through the opening at the end of the elastic sleeve away from the end cover body, and the circular groove is engaged with the elastic cards.

[0009] As an implementation manner, a plurality of the elastic cards are inclined inwards towards the end cover body on the inner side wall of the elastic sleeve, and the plurality of elastic cards are evenly spaced on the inner side wall of the elastic sleeve.

[0010] As an implementation manner, the ends of the plurality of elastic cards are all located on the same circumferential surface, and the diameter of this circumferential surface is smaller than the diameter of the circular groove.

[0011] As an implementation manner, the temperature control protector includes a temperature control protection main body and a temperature control terminal. The temperature control protection main body is a cylindrical structure, and the circular groove is recessed on the outer side wall of the temperature control protection main body. The temperature control terminal extends out from one end face of the temperature control protection main body.

[0012] As an implementation manner, the temperature control terminal is an L-shaped structure.

[0013] As an implementation manner, an exhaust pipe penetrates and communicates axially on the outer end face of the end cover body.

[0014] In the second aspect of the embodiments of the present utility model, a compressor is provided, which includes the end cover assembly for the compressor in any of the above embodiments. According to the compressor in the embodiments of the present utility model, through the structural improvement of the end cover assembly, the temperature control protector can be quickly assembled on the inner end face of the end cover body, and only the sealed wiring terminal needs to be connected to the outer end face of the end cover body to complete the wiring operation, greatly simplifying the wiring operation, improving the installation efficiency, and reducing the production cost.

[0015] For better understanding and implementation, the present utility model will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0016] Figure 1 One of the structural schematic diagrams of the end cover assembly for the compressor in the embodiments of the present utility model;

[0017] Figure 2 Another structural schematic diagram of the end cover assembly for the compressor in the embodiments of the present utility model;

[0018] Figure 3 Exploded schematic diagram of the end cover assembly for the compressor in the embodiments of the present utility model;

[0019] Figure 4 Connection schematic diagram of the elastic sleeve and the temperature control protector in the embodiments of the present utility model;

[0020] Figure 5 Structural schematic diagram of the elastic sleeve in the embodiments of the present utility model;

[0021] Figure 6 Structural schematic diagram of the temperature control protector in the embodiments of the present utility model;

[0022] Figure 7 Circuit schematic diagram of the end cover assembly for the compressor in the embodiments of the present utility model.

[0023] Description of the reference numerals in the drawings: 10, end cover body; 11, elastic sleeve; 12, elastic card; 13, sealed wiring terminal; 14, exhaust pipe; 20, overload protector; 30, temperature control protector; 31, annular card slot; 32, temperature control wiring terminal. Detailed Embodiments

[0024] To further illustrate each embodiment, the present utility model provides accompanying drawings. These drawings are a part of the disclosure of the present utility model, mainly used to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these contents, those of ordinary skill in the art should be able to understand other possible embodiments and the advantages of the present utility model.

[0025] In the related art, in order to ensure the safety performance of the compressor, manufacturers usually use double protectors to improve the safety performance of the compressor, specifically, a current temperature protector is set inside the end cover and a temperature control protector is set on the outer end surface of the end cover. However, due to the small size of the external temperature control protector, it needs to be combined with the sealed terminal and then fixed to the upper cover with a terminal cover, resulting in low installation efficiency and high production costs.

[0026] In view of this, an embodiment of the utility model provides an end cover assembly and a compressor for a compressor. According to the end cover assembly and the compressor for a compressor of the embodiment of the utility model, the temperature control protector 30 can be quickly assembled on the inner end surface of the end cover body 10, and the outer end surface of the end cover body 10 only needs to be connected to the sealed terminal 13 to complete the wiring operation, which greatly simplifies the wiring operation, improves installation efficiency, and reduces production costs.

[0027] See also Figures 1 to 7 ; The first aspect of the embodiment of the utility model provides an end cover assembly for a compressor, including an end cover body 10, an overload protector 20, and a temperature control protector 30; the end cover body 10 is a cover structure with an open end, and the overload protector 20 is arranged on the inner end surface of the end cover body 10; the inner end surface of the end cover body 10 is provided with an elastic sleeve 11, and the temperature control protector 30 is movably connected with the elastic sleeve 11; the outer end surface of the end cover body 10 is provided with a sealed wiring terminal 13, and the sealed wiring terminal 13 is connected in series with the overload protector 20 and the temperature control protector 30 to form an electrical circuit.

[0028] Therefore, according to the end cover assembly for the compressor of the embodiment of the utility model, by setting the overload protector 20 and the temperature control protector 30 on the inner end surface of the end cover body 10, and setting the sealed wiring terminal 13 on the outer end surface of the end cover body 10, when the end cover assembly is assembled with the compressor body, it is only necessary to connect the sealed wiring terminal 13 on the outer end surface of the end cover body 10 to complete the wiring operation. In other words, by the built-in overload protector 20 and the temperature control sensor, and the dual protection mechanism of the two working in conjunction, the electrical safety factor of the compressor can be effectively improved. On this basis, the embodiment of the utility model can greatly simplify the wiring operation of the end cover assembly, improve the installation efficiency, and reduce the production cost; in addition, according to the end cover assembly for the compressor of the embodiment of the utility model, by setting the elastic sleeve 11 on the inner end surface of the end cover body 10, the temperature control protector 30 can be quickly clamped on the elastic sleeve 11, which effectively improves the installation efficiency of the temperature control protector 30.

[0029] In the embodiment of the present utility model, the elastic sleeve 11 is a cylindrical structure with openings at both ends, and one end face of the elastic sleeve 11 abuts and is fixed on the inner end face of the end cover body 10. The inner side wall of the elastic sleeve 11 is inclined inwards towards the end cover body 10 and is provided with elastic cards 12. The outer diameter of the temperature control protector 30 is smaller than the inner diameter of the elastic sleeve 11, and a circular groove 31 is radially recessed in the outer peripheral wall of the temperature control protector 30. The temperature control protector 30 is inserted through the opening at the end of the elastic sleeve 11 away from the end cover body 10, and the circular groove 31 is engaged and clamped with the elastic cards 12.

[0030] Thus, for the end cover assembly for a compressor according to the embodiment of the present utility model, the temperature control protector 30 can be inserted into the elastic sleeve 11 and push open the elastic cards 12 inside the elastic sleeve 11 until the circular groove 31 of the temperature control protector 30 abuts against the end of the elastic cards 12. The elastic cards 12 can be tightly pressed in the circular groove 31 under the action of their own elastic force, so that the temperature control protector 30 can be clamped in the elastic sleeve 11. That is to say, in the embodiment of the present utility model, through the clamping cooperation between the elastic sleeve 11 and the temperature control protector 30, the installation of the temperature control protector 30 can be simple and fast, effectively improving the installation efficiency of the temperature control protector 30.

[0031] In some embodiments of the present utility model, the inner side wall of the elastic sleeve 11 is inclined inwards towards the end cover body 10 and is provided with a plurality of elastic cards 12, and the plurality of elastic cards 12 are respectively arranged at uniform intervals on the inner side wall of the elastic sleeve 11. Among them, the ends of the plurality of elastic cards 12 are all located on the same circumferential surface, and the diameter of this circumferential surface is smaller than the diameter of the circular groove 31. With such a structural design, the clamping between the temperature control protector 30 and the elastic sleeve 11 can be more stable.

[0032] In some embodiments of the present utility model, the temperature control protector 30 includes a temperature control protection main body and a temperature control wiring terminal 32. The temperature control protection main body is a cylindrical structure, and a circular groove 31 is recessed on the outer side wall of the temperature control protection main body. The temperature control wiring terminal 32 extends out from one end face of the temperature control protection main body. Among them, the temperature control wiring terminal 32 is an L-shaped structure.

[0033] In some embodiments of the present utility model, an exhaust pipe 14 penetrates and communicates with the outer end face of the end cover body 10 in the axial direction. Thus, through the design of the exhaust pipe 14 penetrating the end cover body 10, after the end cover body 10 is assembled with the compressor, the refrigerant can be discharged through the exhaust pipe 14.

[0034] As Figure 7 shown, Figure 7This is a circuit schematic diagram of the end cover assembly for a compressor according to an embodiment of the present invention. When the end cover assembly of the embodiment of the present invention is assembled to the compressor, the overload protector 20 and the temperature control protector 30 of the embodiment of the present invention are connected in series to form an electrical circuit, thereby forming a compressor with a dual protection device. During normal operation, the overload protector 20 and the temperature control protector 30 of the embodiment of the present invention are set within the load range to ensure that both are in normal operation; when foreign objects in the system mix into the compressor and cause the compressor to jam, the overload protector 20 is first triggered and disconnects the working circuit of the compressor; when abnormal phenomena such as jamming occur in the compressor and the overload protector 20 fails abnormally, at this time, the temperature and pressure inside the compressor rise sharply. When the temperature control protector 30 senses that the surrounding temperature exceeds its preset temperature, it automatically operates and cuts off the working circuit of the compressor to ensure that the compressor stops running without being burned out, improving the reliability and safety of the compressor operation.

[0035] The following refers to Figures 1 to 7 A detailed description will be given of the end cover assembly for a compressor according to an alternative embodiment of the present invention. It should be understood that the following description is only illustrative and should not be construed as a limitation of the present invention.

[0036] The end cover assembly of this embodiment includes an end cover body 10, an overload protector 20, and a temperature control protector 30; the end cover body 10 is a cover body structure with one end open, and the overload protector 20 is arranged on the inner end face of the end cover body 10; an elastic sleeve 11 is arranged on the inner end face of the end cover body 10, and the temperature control protector 30 is movably clamped with the elastic sleeve 11; a sealed terminal 13 is arranged on the outer end face of the end cover body 10, and the sealed terminal 13 is connected in series with the overload protector 20 and the temperature control protector 30 to form an electrical circuit; an exhaust pipe 14 penetrates and communicates axially on the outer end face of the end cover body 10.

[0037] In this embodiment, the elastic sleeve 11 is a cylindrical structure with both ends open, and one end face of the elastic sleeve 11 abuts and is fixed on the inner end face of the end cover body 10. Six elastic cards 12 are arranged on the inner side wall of the elastic sleeve 11 and are inclined inward towards the end cover body 10. The six elastic cards 12 are evenly spaced on the inner side wall of the elastic sleeve 11. The outer diameter of the temperature control protector 30 is smaller than the inner diameter of the elastic sleeve 11. A circular groove 31 is radially recessed on the outer peripheral wall of the temperature control protector 30. The temperature control protector 30 is inserted from the opening at the end of the elastic sleeve 11 away from the end cover body 10, and the circular groove 31 is engaged with the elastic cards 12.

[0038] Furthermore, in this embodiment, the temperature control protector 30 includes a temperature control protection body and a temperature control terminal 32. The temperature control protection body is a cylindrical structure, and an annular slot 31 is recessed on the outer wall of the temperature control protection body. The temperature control terminal 32 extends from one end surface of the temperature control protection body. The temperature control terminal 32 is an L-shaped structure.

[0039] Compared with the conventional technology, the end cover assembly for the compressor according to the present embodiment is provided with an overload protector 20 and a temperature control protector 30 on the inner end surface of the end cover body 10, and a sealed wiring terminal 13 is provided on the outer end surface of the end cover body 10. In this way, after the end cover assembly is assembled with the compressor body, the wiring operation can be completed by simply connecting the sealed wiring terminal 13 on the outer end surface of the end cover body 10. In other words, the electrical safety factor of the compressor can be effectively improved by the dual protection mechanism of the built-in overload protector 20 and the temperature control sensor, and the linkage and coordination of the two. On this basis, the embodiment of the present utility model can greatly simplify the wiring operation of the end cover assembly, improve the installation efficiency, and reduce the production cost; in addition, according to the end cover assembly for the compressor according to the embodiment of the present utility model, by providing an elastic sleeve 11 on the inner end surface of the end cover body 10, the temperature control protector 30 can be quickly clipped on the elastic sleeve 11, which effectively improves the installation efficiency of the temperature control protector 30.

[0040] The second aspect of the embodiment of the utility model provides a compressor, including an end cover assembly for a compressor according to any of the above embodiments. According to the compressor of the embodiment of the utility model, by improving the structure of the end cover assembly, the temperature control protector 30 can be quickly assembled on the inner end surface of the end cover body 10, and the outer end surface of the end cover body 10 only needs to be connected to the sealed terminal 13 to complete the wiring operation, which greatly simplifies the wiring operation, improves the installation efficiency, and reduces the production cost.

[0041] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] The above embodiments only illustrate several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the end cover assembly for a compressor and the compressor of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. An end cover assembly for a compressor, characterized in that: It includes an end cover body, an overload protector, and a temperature control protector; the end cover body is a cover structure with one end open, and the overload protector is arranged on the inner end surface of the end cover body; the inner end surface of the end cover body is provided with an elastic sleeve, and the temperature control protector is movably connected with the elastic sleeve; the outer end surface of the end cover body is provided with a sealed wiring terminal, and the sealed wiring terminal is connected in series with the overload protector and the temperature control protector to form an electrical circuit.

2. The end cover assembly for a compressor according to claim 1, characterized in that: The elastic sleeve is a cylindrical structure with two ends opened, and one end surface of the elastic sleeve is abutted and fixed on the inner end surface of the end cover body.

3. The end cover assembly for a compressor according to claim 2, characterized in that: The inner wall of the elastic sleeve is inclined inwardly toward the direction of the end cover body and is provided with an elastic card. The outer diameter of the temperature control protector is smaller than the inner diameter of the elastic sleeve. The outer peripheral wall of the temperature control protector is radially recessed inward and is provided with an annular groove. The temperature control protector is inserted from the opening of the elastic sleeve away from one end of the end cover body, and the annular groove is engaged with the elastic card.

4. The end cover assembly for a compressor according to claim 3, characterized in that: The inner side wall of the elastic sleeve is provided with a plurality of elastic cards inclined inwardly toward the end cover body, and the plurality of elastic cards are evenly spaced and arranged on the inner side wall of the elastic sleeve.

5. The end cover assembly for a compressor according to claim 4, characterized in that: The ends of the plurality of elastic cards are all located on the same circumferential surface, and the diameter of the circumferential surface is smaller than the diameter of the annular card slot.

6. The end cover assembly for a compressor according to claim 3, characterized in that: The temperature control protector includes a temperature control protection body and a temperature control terminal. The temperature control protection body is a cylindrical structure. The outer wall of the temperature control protection body is recessed with the annular groove. The temperature control terminal extends from one end surface of the temperature control protection body.

7. The end cover assembly for a compressor according to claim 6, characterized in that: The temperature control terminal is an L-shaped structure.

8. The end cover assembly for a compressor according to claim 1, characterized in that: The outer end surface of the end cover body is penetrated and connected with an exhaust pipe along the axial direction.

9. A compressor, characterized in that: The invention comprises an end cover assembly for a compressor according to any one of claims 1 to 8.

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