Wiring terminal protecting cover and compressor

Abstract

The utility model discloses a wiring terminal protecting cover and compressor, the wiring terminal protecting cover is used for protecting a wiring terminal, the wiring terminal is provided with a steel needle, the wiring terminal protecting cover comprises a protecting cover body and a limiting boss, the protecting cover body is internally provided with an accommodating cavity with an opening, and the limiting boss is arranged in the accommodating cavity. The limiting boss is arranged in the accommodating cavity, a limiting structure is arranged between the limiting boss and the protecting cover body, and a steel needle of the wiring terminal is inserted into the limiting structure from the opening and is in clearance fit with the limiting structure. According to the utility model, through clearance fit, the steel needle of the wiring terminal can be effectively connected and locked with the limiting structure, the steel needle is protected from displacement and deformation, and the wiring terminal protection cover is not easy to fall off, so that the steel needle of the wiring terminal can be effectively protected, the damage to the steel needle can be eliminated, and the service life of the wiring terminal is prolonged. And the possibility of cracks of the glass body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and in particular to a terminal cover and a compressor. Background Technology

[0002] In the compressor manufacturing industry, the protection of terminal blocks is an important part of ensuring product quality and reliability. As a key device for power conversion, the internal electrical components of the compressor, especially the terminal blocks, are extremely susceptible to external environmental influences and physical shocks during storage and transportation from the factory to installation, which can cause damage. In order to effectively avoid this problem, traditionally, protective covers are installed on the terminal blocks to provide an additional layer of protection and reduce potential damage to the terminal blocks and their surrounding structures due to vibration, collision and other factors.

[0003] However, the existing method of installing the protective cover is mainly fixed by interference fit with the steel ring of the terminal (that is, the outer wall of the terminal). Although this design achieves the purpose of fixing the protective cover to a certain extent, it has significant limitations. Specifically, since the protruding size of the steel ring relative to the compressor body is relatively small, it is difficult to ensure the precise alignment between the protective cover and the steel ring during the interference assembly process, which can easily cause the protective cover to tilt during the installation process. Not only can it not effectively protect the terminal, but it may also damage the terminal itself due to the stress concentration caused by the tilt. In addition, the insufficient stability of the interference fit makes the protective cover easy to fall off during long-term storage or transportation, further reducing the protective effect of the terminal.

[0004] What is more serious is that when the protective cover is improperly installed or falls off and makes unnecessary contact with the terminal pins, the glass structure under the pins is easily squeezed or impacted, resulting in cracks or even breakage, which directly affects the electrical performance and overall quality of the compressor, and may eventually lead to product scrapping, increasing production costs and after-sales maintenance pressure. Contents of utility model

[0005] The purpose of the utility model is to provide a terminal cover and a compressor, aiming to solve the problems of inaccurate matching and positioning between the existing terminal and the cover, which easily leads to falling off and skewing and damaging the terminal.

[0006] The utility model embodiment provides a terminal cover for protecting the terminal, the terminal is provided with a steel pin, the terminal cover comprises: a cover body and a limiting boss, the cover body is provided with a receiving cavity with an opening, the limiting boss is provided in the receiving cavity, a limiting structure is provided between the limiting boss and the cover body, the steel pin of the terminal is inserted into the limiting structure from the opening and is in clearance with the limiting structure.

[0007] Further, the shape of the limiting structure is an annular groove.

[0008] Further, the terminal cover is made of a soft material.

[0009] Further, a guiding portion is provided inside the opening, and the guiding portion is a flared opening.

[0010] Further, the height of the cover body is greater than the height of the limiting boss.

[0011] Further, an extending boss is provided on the outer side of one end of the cover body close to the opening.

[0012] Further, an adjusting hole is provided in the limiting boss.

[0013] Further, a plurality of deformation grooves are provided on the inner wall of the cover body along the insertion direction of the steel needle, and / or a plurality of deformation grooves are provided on the outer wall of the limiting boss along the insertion direction of the steel needle.

[0014] Further, the range of the clearance fit is 0.05 - 0.09 mm.

[0015] An embodiment of the present utility model provides a compressor, including: the above-mentioned terminal cover.

[0016] The present utility model discloses a terminal cover and a compressor. The terminal cover is used to protect a terminal. A steel needle is provided on the terminal. The terminal cover includes: a cover body and a limiting boss. An accommodating cavity with an opening is provided in the cover body. The limiting boss is arranged in the accommodating cavity. A limiting structure is arranged between the limiting boss and the cover body. The steel needle of the terminal is inserted into the limiting structure through the opening and is in clearance fit with the limiting structure. Through the clearance fit, the present utility model can effectively realize the connection and locking of the steel needle of the terminal and the limiting structure, protect the steel needle from displacement and deformation, and the terminal cover is not easily detached. Thus, the steel needle of the terminal can be effectively protected, and at the same time, the damage to the steel needle can be eliminated, and the possibility of cracks in the glass body can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the terminal cover;

[0019] Figure 2 It is a schematic cross-sectional view of a terminal cover;

[0020] Figure 3 It is a schematic structural view of a terminal cover with a rectangular deformation groove;

[0021] Figure 4 It is a schematic cross-sectional view of a terminal cover with a rectangular deformation groove;

[0022] Figure 5 It is Figure 4 a partial view of A in

[0023] Figure 6 It is a schematic structural view of a terminal cover with a triangular deformation groove;

[0024] Figure 7 It is a schematic cross-sectional view of a terminal cover with a triangular deformation groove;

[0025] Figure 8 It is Figure 7 a partial view of B in

[0026] Explanation of the markings in the figure:

[0027] 1. Cover body; 2. Limit boss; 3. Opening; 4. Accommodation cavity; 5. Limit structure; 6. Guide part; 7. Extension boss; 8. Adjustment hole; 9. Deformation groove. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0030] It should also be understood that the terms used in this specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in this specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.

[0031] It should also be further understood that the term "and / or" used in the specification and appended claims of the present utility model refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0032] Please refer to Figure 1 and Figure 2 , this embodiment provides a terminal cover for protecting a terminal. There are steel needles on the terminal. The terminal cover includes: a cover body 1 and a limiting boss 2. An accommodating cavity 4 with an opening 3 is arranged in the cover body 1. The limiting boss 2 is arranged in the accommodating cavity 4. A limiting structure 5 is arranged between the limiting boss 2 and the cover body 1. The steel needle of the terminal is inserted into the limiting structure 5 through the opening 3 and is in clearance fit with the limiting structure 5.

[0033] Through the clearance fit, this embodiment can effectively realize the connection and locking of the steel needle of the terminal and the limiting structure 5, protect the steel needle from displacement and deformation, and the terminal cover is not easily detached. Thus, it can effectively protect the steel needle of the terminal, and at the same time, it can also eliminate the damage of the steel needle and reduce the possibility of cracks in the glass body.

[0034] Among them, the limiting structure 5 can be a hole structure. By inserting the steel needle into the corresponding hole, comprehensive protection of the steel needle can be achieved. The hole structure design enables the steel needle to be firmly fixed in a predetermined position after insertion, avoiding displacement or detachment caused by external factors such as vibration and impact, thereby enhancing the stability and reliability of the overall structure after the steel needle is installed. The limiting structure 5 can also be a groove structure. By inserting the steel needle into the corresponding groove, comprehensive protection of the steel needle can be achieved.

[0035] Preferably, the shape of the limiting structure 5 is an annular groove. The design of the annular groove makes the assembly and disassembly process of the steel needle simple and fast. The steel needle can be easily inserted or removed without deliberately installing it in the corresponding groove, improving work efficiency and convenience.

[0036] Further, there are 3 steel needles on the terminal. The annular structure formed by the 3 steel needles is the same size or slightly smaller than the shape of the annular groove.

[0037] The 3 steel needles are evenly distributed on the annular structure and can form a stable triangular support. This structure is very stable mechanically. When the steel needle is inserted into the annular groove, it can closely fit the groove wall, effectively preventing loosening or detachment caused by vibration or external force, thereby enhancing the stability and reliability of the connection.

[0038] In this embodiment, the terminal cover is made of a flexible material, such as flexible materials like plastic, rubber, and silicone. By using a flexible material and a mating gap, according to the characteristics of the flexible material, an annular groove is added at the contact position to increase the deformation and avoidance space of the flexible material, which can make the steel needle not easily fall off after installation and is also convenient for disassembly. At the same time, due to the good durability and recyclability of the flexible material, using the flexible material can significantly reduce the usage cost.

[0039] In this embodiment, a guiding portion 6 is provided inside the opening 3, and the guiding portion 6 is a flared opening. The flared opening structure has the characteristic of gradually expanding, which means that when the steel needle approaches the opening 3, even if its direction or position deviates slightly, it can smoothly enter the opening 3 under the guidance of the flared opening and gradually enter the limiting structure 5 along the opening 3, enabling a 360-degree non-oriented angle installation in a ring shape, and the installation is convenient and fast.

[0040] Among them, the flared opening can be set as an inclined surface or an arc, and the specific setting depends on the actual application situation.

[0041] In this embodiment, the height of the cover body 1 is greater than the height of the limiting boss 2. The cover body 1 first contacts the outside of the steel needle of the terminal, and then aligns the centers of the multiple steel needles of the terminal with the center of the cover body 1 through the guiding portion 6. As the terminal is installed downward, the limiting boss 2 contacts the inside of the steel needle of the terminal, thereby achieving accurate internal and external positioning of the steel needle of the terminal. This method of dual internal and external positioning ensures high precision and stability of the steel needle during the installation process. And due to the high accuracy of internal and external positioning, the adjustment time after installation is greatly reduced, improving the work efficiency.

[0042] In some embodiments, the height of the cover body 1 is greater than the height of the limiting boss 2, and the height difference between the cover body 1 and the limiting boss 2 is 1 - 3 mm. For example, the height of the cover body 1 is 2.5 mm higher than the height of the limiting boss 2. This specific height difference ensures that the cover body 1 first contacts the outside of the steel needle of the terminal, providing a stable foundation for subsequent precise positioning. By controlling the height difference within the range of 1 - 3 mm, the depth and angle of the steel needle entering the cover body 1 can be more precisely controlled, thereby achieving higher-precision internal and external positioning.

[0043] In this embodiment, an extension boss 7 is provided on the outer side of one end of the cover body 1 close to the opening 3.

[0044] An extension boss 7 is provided on the outer side of one end of the cover body 1 close to the opening 3 so as to be able to distinguish the upper end face and the lower end face of the cover body 1, thereby facilitating disk feeding and automatic grasping.

[0045] Among them, the shape of the extension boss 7 can be butterfly-shaped, serrated, wavy, or irregular, etc. The specific structural design depends on the actual situation.

[0046] In this embodiment, an adjustment hole 8 is provided in the limit boss 2.

[0047] The adjustment hole 8 can be deformed under the action of an external force. Therefore, when the steel needle is accurately placed into the limit structure 5, its tip or side may come into contact with the limit boss 2 and exert a certain extrusion force. At this time, the adjustment hole 8 in the limit boss 2 begins to play its unique advantage: it allows the limit boss 2 to undergo a certain degree of elastic deformation under the extrusion of the steel needle. This deformation is not only a flexible adaptation to the possible small position deviations during the installation of the steel needle, but also a gentle and stable binding force exerted on the steel needle. Through the deformation of the adjustment hole 8, the limit boss 2 can fit more closely to the surface of the steel needle, reducing the shaking or loosening phenomenon caused by excessive gaps. At the same time, this elastic deformation can also disperse the impact force generated during the installation of the steel needle to a certain extent, protecting the limit structure 5 from damage and extending the service life of the overall structure.

[0048] Among them, the shape of the adjustment hole 8 can be circular, triangular, or irregular. Of course, the adjustment hole 8 can also be designed in other shapes. The specific structural design depends on the actual situation.

[0049] Preferably, the shape of the adjustment hole 8 is trapezoidal, and the diameter of the adjustment hole 8 decreases along the steel needle insertion direction N (as Figure 2 shown).

[0050] This design can ensure that the steel needle is subjected to a gradually increasing pressure during the process of inserting into the limit structure 5, so as to be more firmly fixed in the limit structure 5. This is because, as the steel needle gradually penetrates into the adjustment hole 8, due to the decreasing aperture, the deformable degree of the adjustment hole 8 gradually decreases, so the force required for the steel needle to insert gradually increases, and the force exerted on the steel needle by the limit boss 2 also gradually increases. This gradually increasing pressure helps the steel needle to be more firmly fixed in the limit structure 5. When the steel needle is completely inserted, since the pressure it receives has reached the maximum, it can effectively prevent the steel needle from loosening or slipping out due to vibration or other external forces during use. This increases the connection strength between the cover body 1 and the steel needle, ensures that the terminal is not easily detached during transportation, thereby eliminating damage to the steel needle and reducing the possibility of cracks in the glass body.

[0051] In this embodiment, please refer to Figure 3 and Figure 4 , the inner wall of the cover body 1 along the steel needle insertion direction N (as Figure 2is provided with a plurality of deformation grooves 9, and / or, the outer wall of the limiting boss 2 is provided with a plurality of deformation grooves 9 along the steel needle insertion direction N.

[0052] The design of the deformation groove 9 enables the cover body 1 or the limiting boss 2 to more easily undergo local elastic deformation when the steel needle is inserted. Through the deformation of the deformation groove 9, the cover body 1 and the limiting boss 2 can more closely fit the surface of the steel needle, reducing the shaking or loosening phenomenon caused by excessive gaps. This design increases the flexibility of the structure, enables the steel needle to be inserted more smoothly, and at the same time reduces the damage or jamming phenomenon that may be caused by excessive insertion force. At the same time, it also increases the connection strength between the cover body 1 and the steel needle, ensuring that the terminal is not easily detached during transportation, thereby being able to eliminate damage to the steel needle and reduce the possibility of cracks appearing in the glass body.

[0053] In some embodiments, please refer to Figures 3 - 5 , the inner wall of the cover body 1 is provided with a plurality of rectangular deformation grooves along the steel needle insertion direction N, and / or, the outer wall of the limiting boss 2 is provided with a plurality of rectangular deformation grooves along the steel needle insertion direction N.

[0054] The design of the rectangular deformation groove enables the cover body 1 or the limiting boss 2 to more easily undergo local elastic deformation when the steel needle is inserted. Through the deformation of the rectangular deformation groove, the cover body 1 and the limiting boss 2 can more closely fit the surface of the steel needle, reducing the shaking or loosening phenomenon caused by excessive gaps. This design increases the flexibility of the structure, enables the steel needle to be inserted more smoothly, and at the same time reduces the damage or jamming phenomenon that may be caused by excessive insertion force. At the same time, it also increases the connection strength between the cover body 1 and the steel needle, ensuring that the terminal is not easily detached during transportation, thereby being able to eliminate damage to the steel needle and reduce the possibility of cracks appearing in the glass body. At the same time, the rectangular deformation groove is simple and convenient to process, which can reduce the manufacturing cost of the terminal cover.

[0055] In some embodiments, please refer to Figures 6 - 8 , the inner wall of the cover body 1 is provided with a plurality of triangular deformation grooves along the steel needle insertion direction N, and / or, the outer wall of the limiting boss 2 is provided with a plurality of triangular deformation grooves along the steel needle insertion direction N.

[0056] The design of the triangular deformation groove enables the cover body 1 or the limiting boss 2 to more easily undergo local elastic deformation when the steel needle is inserted. Through the deformation of the triangular deformation groove, the cover body 1 and the limiting boss 2 can more closely fit the surface of the steel needle, reducing the shaking or loosening phenomenon caused by excessive gaps. This design increases the flexibility of the structure, enables the steel needle to be inserted more smoothly, and reduces the damage or jamming phenomenon that may be caused by excessive insertion force. At the same time, it also increases the connection strength between the cover body 1 and the steel needle, ensuring that the terminal is not easily detached during transportation, thereby eliminating damage to the steel needle and reducing the possibility of cracks in the glass body. At the same time, the triangular deformation groove is simple and convenient to process, which can reduce the manufacturing cost of the terminal cover.

[0057] It should be noted that the deformation groove 9 can also be circular, trapezoidal, or irregular, and users can make specific selections according to the actual usage situation.

[0058] In this embodiment, the range of the clearance fit is 0.05 - 0.09 mm. For example, the spacing of the clearance fit can be 0.06 mm.

[0059] The range of the clearance fit being 0.05 - 0.09 mm can, on the one hand, avoid excessive gaps where the terminal cover is extremely likely to detach from the terminal, resulting in the terminal cover being unable to effectively protect the terminal. On the other hand, it can avoid the cover being skewed and damaging the terminal due to poor centering during assembly, and it is also likely to fall off, unable to protect the steel needle, thus causing cracks in the glass body under the steel needle and leading to product scrapping.

[0060] Preferably, the cylindrical structure of the cover body 1 is cylindrical or prismatic, with a simple structure. In other embodiments, the cover body 1 can also be in other shapes, which can be regular or irregular. In this embodiment, the cover body 1 is cylindrical, which is convenient for processing. The accommodating cavity 4 of the cover body 1 can be cylindrical or regular triangular prism-shaped, or can also be designed in other shapes. In this embodiment, the accommodating cavity 4 is cylindrical, which is convenient for processing. The limiting boss 2 can be cylindrical or regular triangular prism-shaped, or can also be designed in other shapes. In this embodiment, the accommodating cavity 4 is cylindrical, which is convenient for processing.

[0061] This embodiment also provides a compressor, including: the terminal cover of the above embodiment.

[0062] The various embodiments in the description are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method section. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0063] It should also be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion.

[0064] Including, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent in such a process, method, article or device. Without more limitations, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

Claims

1. A terminal cover for protecting a terminal, wherein a steel pin is provided on the terminal, characterized in that: The terminal cover comprises: a cover body and a limiting boss, wherein the cover body is provided with a receiving cavity having an opening, the limiting boss is arranged in the receiving cavity, a limiting structure is arranged between the limiting boss and the cover body, and the steel needle of the terminal is inserted into the limiting structure from the opening and cooperates with the clearance of the limiting structure.

2. The terminal cover according to claim 1, characterized in that: The limiting structure is in the shape of an annular groove.

3. The terminal cover according to claim 1, characterized in that: The terminal cover is made of soft material.

4. The terminal cover according to claim 1, characterized in that: A guide portion is arranged on the inner side of the opening, and the guide portion is a bell mouth.

5. The terminal cover according to claim 1, characterized in that: The height of the protective cover body is greater than the height of the limiting boss.

6. The terminal cover according to claim 1, characterized in that: An extension boss is arranged on the outer side of one end of the protective cover body close to the opening.

7. The terminal cover according to claim 1, characterized in that: An adjustment hole is arranged in the limiting boss.

8. The terminal cover according to claim 1, characterized in that: The inner wall of the protective cover body is provided with a plurality of deformation grooves along the insertion direction of the steel needle, and / or the outer wall of the limiting boss is provided with a plurality of deformation grooves along the insertion direction of the steel needle.

9. The terminal cover according to claim 1, characterized in that: The range of the clearance fit is 0.05 to 0.09 mm.

10. A compressor, characterized in that: include: A terminal cover as claimed in any one of claims 1 to 9.

Images