A terminal block assembly and compressor
By incorporating anti-detachment barbs into the terminal assembly, the problem of poor contact and detachment of terminals caused by vibration in vehicle compressors is solved, thereby improving the reliability and electrical safety performance of the compressor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI LANDA COMPRESSOR
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
Vibration can cause poor contact or disconnection of the terminals in the vehicle compressor, affecting electrical safety performance.
Design a terminal block assembly including a core post and a base. An anti-detachment post is provided on the core post, and the extension direction of the anti-detachment post is not parallel to the extension direction of the core post. A receiving cavity and a connecting hole are provided inside the core post. When activated, the anti-detachment post is inserted into the receiving cavity and extends through the connecting hole to form a barbed structure to prevent the core post from detaching.
It effectively prevents the terminals from coming loose under high-frequency vibration, improves the reliability and electrical safety performance of the compressor, and solves the problem of poor contact.
Smart Images
Figure CN224502540U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor technology, specifically to a terminal block assembly and a compressor. Background Technology
[0002] With the widespread use of compressors across various industries, the requirements for electrical safety performance are becoming increasingly stringent. Compressors need to operate safely under more extreme conditions, placing higher design demands on various components. Terminals are crucial structural components of compressors, their function being to conduct externally input current into the compressor's interior, connecting the internal electrical components. To enhance the electrical safety of compressors under extreme operating conditions, higher requirements are placed on leakage current, vacuum withstand voltage, and insulation resistance. Improving the electrical safety performance of terminals is a challenging industry issue, requiring specialized design to enhance related performance. In existing technologies, the widespread use of automotive compressors presents significant differences in operating conditions compared to traditional household compressors. In automotive scenarios, compressors face high-frequency vibrations in multiple directions during vehicle movement, potentially leading to poor contact or even detachment of internal components due to prolonged vibration.
[0003] Because existing vehicle compressors suffer from technical problems such as poor contact or detachment of terminals due to vibration, this invention designs a terminal assembly and a compressor. Utility Model Content
[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defect of poor contact or detachment of the terminal blocks in the existing vehicle compressor due to vibration, thereby providing a terminal block assembly and a compressor.
[0005] To address the above problems, this utility model provides a terminal block assembly, comprising:
[0006] The device comprises a core and a base, the base having mounting holes into which the core can be inserted, such that a first end of the core is located on the inner side of the base and a second end of the core is located on the outer side of the base. After being inserted into the mounting holes, the core includes an inner shaft segment located on the inner side of the base. The core is also provided with an anti-detachment post, which extends from the surface of the inner shaft segment toward the base, and the extension direction of the anti-detachment post is not parallel to the extension direction of the core.
[0007] In some implementations...
[0008] The core post has an internal receiving cavity that extends from the end face of the second end of the core post toward the first end. The other end of the receiving cavity has a preset distance greater than 0 from the first end. A connecting hole is provided at the other end of the receiving cavity, which connects the other end of the receiving cavity to the outer surface of the core post, so that the anti-detachment post is inserted into the receiving cavity and one end of the anti-detachment post extends along the connecting hole to the outer surface of the core post.
[0009] In some implementations...
[0010] In a longitudinal section passing through the axis of the core post, the extending direction of the receiving cavity is parallel to the axial direction of the core post, and the connecting hole extends from one end communicating with the receiving cavity to the other end in contact with the outer surface of the core post. The extending direction of the connecting hole is toward the base or perpendicular to the axis of the core post.
[0011] In some implementations...
[0012] When the connecting hole extends from one end that communicates with the receiving cavity to the other end that contacts the outer surface of the core post, and the direction of extension of the connecting hole is toward the base, the angle between the direction of extension of the connecting hole and the axis of the core post is between (0° and 90°).
[0013] In some implementations...
[0014] The other end of the receiving cavity is located inside the inner shaft segment of the core column, one end of the connecting hole is connected to the other end of the receiving cavity, and the other end of the connecting hole extends to the outer surface of the inner shaft segment.
[0015] In some implementations...
[0016] When the core post is not inserted into the mounting hole, or after being inserted into the mounting hole but before being activated, one end of the anti-detachment post extends into the receiving cavity but does not reach the other end of the receiving cavity, and the other end of the anti-detachment post extends outside the second end of the core post;
[0017] After the core post is inserted into the mounting hole and activated, the other end of the anti-detachment post can be forcefully applied to move into the receiving cavity, so that one end of the anti-detachment post extends to the other end of the receiving cavity and passes through the connecting hole to the outer surface of the core post.
[0018] In some implementations...
[0019] After the core post is inserted into the mounting hole and activated, the other end of the anti-detachment post is completely located in the receiving cavity without exceeding the end face of the second end of the core post.
[0020] In some implementations...
[0021] A sleeve is also fitted onto the inner shaft section of the core column, and the sleeve and the inner shaft section are interference fit.
[0022] In some implementations...
[0023] The sleeve is made of polytetrafluoroethylene.
[0024] This utility model also provides a compressor, which includes the aforementioned terminal assembly.
[0025] The terminal block assembly and compressor provided by this utility model have the following beneficial effects:
[0026] 1. This utility model provides an anti-detachment post on the core column, which extends from the surface of the internal shaft section and toward the base. The extension direction of the anti-detachment post is not parallel to the extension direction of the core column. This allows the anti-detachment post to act as a barb structure to prevent the core column from detaching after it is installed in the mounting hole. This makes it difficult for the core column to detach from the mounting hole during compressor operation, resulting in a more secure connection between the terminal block and the compressor base, thus improving the reliability of the compressor. This effectively solves the problem of poor contact or detachment of the terminal block due to vibration in existing vehicle compressors.
[0027] 2. This utility model further improves upon the structure of the receiving cavity and connecting hole inside the core column, by inserting the anti-detachment column into the receiving cavity. During activation, by pushing the anti-detachment column forward, one end of the anti-detachment column inserted into the receiving cavity extends out of the surface of the core column as the direction of the connecting hole changes. Furthermore, one end of the anti-detachment column extends in the opposite direction towards the base or is perpendicular to the axis of the core column, thereby forming an anti-detachment barb structure to prevent the core column from detaching from the mounting hole. When the compressor vibrates and the core column moves outward towards the base, the barb structure formed by the anti-detachment column abuts against the base, thereby effectively forming an anti-detachment structure to prevent the core column from detaching, further solving the problem of poor contact or detachment of the core column under high-frequency vibration. Attached Figure Description
[0028] Figure 1 This is a longitudinal sectional view of the terminal block assembly of this utility model;
[0029] Figure 2 yes Figure 1 Front view of the core pillar + anti-detachment pillar before activation;
[0030] Figure 3 yes Figure 2 A magnified view of part A;
[0031] Figure 4 yes Figure 1 Front view of the core pillar + anti-detachment pillar after activation;
[0032] Figure 5 yes Figure 4 A magnified view of part B.
[0033] The reference numerals in the attached figures are as follows:
[0034] 1. Core post; 2. Base; 3. Mounting hole; 4. Internal shaft section; 5. Anti-detachment post; 6. Receiving cavity; 7. Connecting hole; 8. Sleeve; 9. First end; 10. Second end; 11. Welding piece. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0038] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0039] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0040] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0041] like Figure 1-5 As shown, this utility model provides a terminal block assembly, which includes:
[0042] The device comprises a core post 1 and a base 2. The base 2 has a mounting hole 3, into which the core post 1 can be inserted, such that the first end 9 of the core post 1 is located on the inner side of the base 2, and the second end 10 of the core post 1 is located on the outer side of the base 2. After being inserted into the mounting hole 3, the core post 1 includes an inner shaft segment 4 located on the inner side of the base 2. The core post 1 is also provided with an anti-detachment post 5, which extends from the surface of the inner shaft segment 4 and extends toward the base 2. The extension direction of the anti-detachment post 5 is not parallel to the extension direction of the core post 1.
[0043] This invention provides an anti-detachment post on the core column, extending from the surface of the internal shaft section and towards the base. The extension direction of the anti-detachment post is not parallel to the extension direction of the core column. This anti-detachment post acts as a barb structure to prevent the core column from detaching after it is installed in the mounting hole, making it less likely for the core column to detach from the mounting hole during compressor operation. This results in a more secure connection between the terminal block and the compressor base, improving the reliability of the compressor. It effectively solves the problem of poor contact or detachment of the terminal block due to vibration in existing vehicle compressors.
[0044] In some implementations...
[0045] The core post 1 has a receiving cavity 6 inside. The receiving cavity 6 extends from the end face of the second end 10 of the core post 1 towards the first end 9. The other end of the receiving cavity 6 has a preset distance greater than 0 from the first end 9. A connecting hole 7 is provided at the other end of the receiving cavity 6. The connecting hole 7 connects the other end of the receiving cavity 6 to the outer surface of the core post 1, so that the anti-detachment post 5 is inserted into the receiving cavity 6 and one end of the anti-detachment post 5 extends along the connecting hole 7 to the outer surface of the core post 1.
[0046] This invention further improves upon the structure of the receiving cavity and connecting hole inside the core column, by inserting the anti-detachment column into the receiving cavity. During activation, by pushing the anti-detachment column forward, the end of the anti-detachment column inserted into the receiving cavity extends out of the surface of the core column as the direction of the connecting hole changes, forming an anti-detachment barb structure to prevent the core column from detaching from the mounting hole. When the compressor vibrates and the core column moves outward toward the base, the barb structure formed by the anti-detachment column abuts against the base, thereby effectively forming an anti-detachment structure for the core column, further solving the problem of poor contact or detachment of the core column under high-frequency vibration.
[0047] The core post 1 of this invention is preferably provided with anti-detachment posts 5 (i.e., barbed structures). The core post 1 has a cylindrical cavity (accommodating cavity 6) with a diameter of 0.05-0.5mm on its periphery, such as... Figure 3 The bottom has a guide groove (connecting hole 7) to guide the barbs to bend upwards, with an extension angle of 20-40°. Multiple cavities are preferably arranged around the core post 1; the number of cavities can be determined according to the actual needs of the project. Furthermore, the position of the cavities can be non-uniformly adjusted according to the internal structure of the plug to achieve a better fit to the plug's structure. A barb needle (anti-detachment post 5) is inserted into the cavity, initially as shown... Figure 2-3At this point, the barb structure is not activated, and the core post 1 can be normally inserted into the mounting hole 3. After the terminal block is installed in the mounting hole 3, another section of the barb is pushed in. The barb extends out of the core post 1 through the receiving cavity 6 and the connecting hole 7, forming a barb structure that hooks with the internal components of the plug, thus reinforcing the connection. The barb (i.e., the anti-detachment post) of this utility model is preferably made of steel with good plastic deformation properties, which can meet the deformation requirements of the barb.
[0048] The barbed structure on the core of this invention does not add any extra steps to the production process; the barbs are pushed into the core when installing the external socket. When the barbed structure is in effect, it reinforces the connection between the terminal and the plug, effectively solving the problem of poor contact and detachment of parts under high-frequency vibration.
[0049] In some implementations...
[0050] In the longitudinal section passing through the axis of the core post 1, the extending direction of the receiving cavity 6 is parallel to the axial direction of the core post 1, and the connecting hole 7 extends from one end that communicates with the receiving cavity 6 to the other end that is in contact with the outer surface of the core post 1. The extending direction of the connecting hole 7 is toward the base 2 or perpendicular to the axis of the core post 1.
[0051] This invention, through a further optimized structural form of the aforementioned connecting hole and receiving cavity, extends one end of the anti-detachment column in the opposite direction to the base or perpendicular to the axis of the core column, further enhancing the anti-detachment function and effect of the anti-detachment column as an anti-detachment barb structure. When the compressor vibrates and the core column moves outward from the base, the barb structure formed by the anti-detachment column abuts against the base, thereby effectively forming an anti-detachment structure for the core column, further solving the problem of poor contact or detachment of the core column under high-frequency vibration.
[0052] In some implementations...
[0053] When the connecting hole 7 extends from one end that communicates with the receiving cavity 6 to the other end that is in contact with the outer surface of the core post 1, and the extending direction of the connecting hole 7 is toward the base 2, the angle between the extending direction of the connecting hole 7 and the axis of the core post 1 is between (0° and 90°).
[0054] This is a preferred structural form of the connecting hole of this utility model, that is, the angle between its extension direction and the axis of the core is between (0, 90°), which enables the connecting hole to form a structure that extends in the opposite direction to the receiving cavity towards the base, thereby making it easier for the anti-detachment column to act as a barb structure to abut and lock onto the base when the core moves in the detachment direction, further improving the anti-detachment effect of the core.
[0055] In some implementations...
[0056] The other end of the receiving cavity 6 is located inside the inner shaft section 4 of the core column 1. One end of the connecting hole 7 is connected to the other end of the receiving cavity 6, and the other end of the connecting hole 7 extends to the outer surface of the inner shaft section 4.
[0057] This is a further preferred structural form of the connecting hole of this utility model, that is, the other end of the receiving cavity is opposite to the internal shaft section, that is, a connecting hole structure is formed on the inner side of the compressor base, so that when the anti-detachment column extends out of the connecting hole, and when the core column moves in the direction of detachment, the anti-detachment column acts as a barb structure to effectively abut against one end face of the inner side of the compressor base, effectively preventing the core column from moving in the mounting hole towards the outer side of the compressor base or even detaching.
[0058] In some implementations...
[0059] When the core column 1 is not inserted into the mounting hole 3, or after being inserted into the mounting hole 3 but before being activated (here, "not activated" means that the part of the core column located outside the compressor is not connected to electricity), one end of the anti-detachment column 5 extends into the receiving cavity 6 but does not reach the other end of the receiving cavity 6, and the other end of the anti-detachment column 5 extends out of the second end 10 of the core column 1.
[0060] After the core post 1 is inserted into the mounting hole 3 and activated (here, activation refers to the action of connecting the part of the core post located outside the compressor to electricity, that is, for example, when the part of the core post located outside the compressor is inserted into the socket, the anti-detachment post can be pushed into the connecting hole inside the compressor and form a barbed structure without adding extra steps), the other end of the anti-detachment post 5 can be forcefully applied and move into the receiving cavity 6, so that one end of the anti-detachment post 5 extends to the other end of the receiving cavity 6 and passes through the connecting hole 7 to the outer surface of the core post 1.
[0061] This invention relates to two states and structural forms of the core column: inactive and activated. Before activation, when the core column is inserted into the mounting hole or not inserted, the anti-detachment post extends a certain distance from the second end of the core column, facilitating insertion into the receiving cavity of the core column during activation. During activation, the anti-detachment post is inserted into the receiving cavity. When one end of the anti-detachment post enters the other end of the receiving cavity, it extends along the extension direction of the connecting hole to the outer surface of the core column, forming a barbed structure extending towards the base. This creates an anti-detachment structure that effectively prevents the core column from detaching from the mounting hole after activation, improving the connection stability of the compressor terminal structure and effectively preventing the core column from detaching from the mounting hole due to vibration or other reasons during operation, thus improving structural stability.
[0062] In some implementations...
[0063] After the core post 1 is inserted into the mounting hole 3 and activated, the other end of the anti-detachment post 5 is completely located in the receiving cavity 6 without exceeding the end face of the second end 10 of the core post 1.
[0064] This is the preferred structural form of the anti-detachment column after the core column is inserted into the mounting hole and activated. That is, the other end of the anti-detachment column opposite to the second end of the core column is completely contained in the receiving cavity without exceeding the second end, thereby ensuring the normal connection between the second end of the core column and other structures such as welding plates, so as not to affect the wiring conductivity of the core column during the normal operation of the compressor, and improve the operational stability.
[0065] In some implementations...
[0066] A sleeve 8 is also fitted on the inner shaft section 4 of the core column 1, and the sleeve 8 and the inner shaft section 4 are interference fit.
[0067] This invention also improves the insulation performance of the portion of the core column located inside the compressor base (facing the internal cavity of the compressor) by using a sleeve structure provided on the inner shaft section of the core column.
[0068] The core post 1 of this invention can be made in any shape to increase the contact area with the terminal, such as petal-shaped, serrated, or concave petal-shaped (the shape of the cross-section). Compared with a cylindrical core post, it can increase the contact area by 31.83%, 16.07%, and 59.64% respectively. At the same time, the lead terminal needs to be adapted to the shape of the core post so that the core post and the lead terminal can fully engage and achieve surface contact. The contact area determines the current carrying capacity of the terminal and lead wire assembly. Increasing the base area can significantly expand the application scenarios of the compressor.
[0069] In some implementations...
[0070] The sleeve 8 is made of polytetrafluoroethylene.
[0071] This utility model proposes a sealed terminal assembly for a compressor, consisting of a terminal structure with a welded tab 11 and a smooth rod (core post 1) combined with a sealed lead wire assembly plug. The terminal assembly includes a base 2, which is welded to the compressor top cover. Three core posts 1 are fixed to the base, with one end located outside the compressor and the other end inside. The portion of the core post located outside the compressor has a welded tab 11 structure for connecting the circuit between the system and the compressor; the portion of the core post 1 inside the compressor has a smooth rod structure and is fitted with a polytetrafluoroethylene (PTFE) sleeve 8.
[0072] This utility model's sealed terminal block adopts a smooth rod structure, with a PTFE sleeve covering the smooth rod. During operation, the component mates with the plug of the sealed lead-out assembly, with the plug hole and PTFE sleeve forming an interference fit, effectively isolating the current flowing between the terminal block and the lead-out assembly from the compressed medium. The sealed terminal block adopts a smooth rod structure, with a PTFE sleeve covering the smooth rod. During operation, the component mates with the plug of the sealed lead-out assembly, with the plug hole and PTFE sleeve forming an interference fit, effectively isolating the current flowing between the terminal block and the lead-out assembly from the compressed medium. The assembly using this type of terminal block offers beneficial effects such as reducing compressor leakage current, increasing insulation resistance, and enhancing compressor reliability under extreme operating conditions.
[0073] This utility model also provides a compressor, which includes the aforementioned terminal assembly.
[0074] This invention proposes a sealed terminal block assembly, which consists of a terminal block structure with a welded plate and a smooth rod, combined with a sealed lead wire assembly plug. In use, the lead wire assembly plug is inserted into the terminal block. The smooth rod of the terminal block and the terminals of the lead wire assembly are both enclosed in the sealed lead wire assembly plug, preventing direct contact with the compression medium inside the compressor. This increases insulation resistance and reduces leakage current, allowing the terminals to withstand higher vacuum withstand pressure test parameters. Simultaneously, the terminal block has a barbed structure to prevent detachment (anti-detachment post 5). After installation, the barbed structure can be activated, making the terminal block and plug more secure and further improving compressor reliability.
[0075] The following technical problems can be solved by this utility model:
[0076] 1. Solved the problem of terminal block detachment of vehicle compressor under high-frequency vibration.
[0077] 2. The problem of poor reliability of compressors under extreme operating conditions has been solved.
[0078] 3. The problem of high leakage current in the compressor has been solved.
[0079] 4. The problem of low insulation resistance in the compressor has been solved.
[0080] 5. The problem of compressed medium leakage between the terminal block and the plug socket has been solved.
[0081] This invention proposes a sealed terminal assembly for a compressor, consisting of a terminal structure with a welded tab and a smooth rod, combined with a sealed lead-out connector plug, and featuring a barbed structure (anti-detachment post 5). The terminal assembly includes a base 2, welded to the compressor top cover, with three core posts 1 fixed to the base, one end outside the compressor and the other inside. The part of the core post outside the compressor has a welded tab 11 structure for connecting the system and the compressor circuit; the part of the core post inside the compressor has a smooth rod structure, with a polytetrafluoroethylene (PTFE) sleeve 8 fitted onto it. The sealed lead-out connector plug housing is made of PBT material, sealing the internal compressor motor lead-out terminals. The terminals connect to the lead-out connector's leads, which in turn connect to the compressor motor, enabling circuit conduction. Because the plug housing forms a sealed structure for the lead-out terminals, the terminals do not directly contact the compressed medium. The plug housing has a circular hole structure, allowing the smooth rod structure of the terminal post to be inserted into the plug and contact the terminals, enabling external power supply access. The plug has a cylindrical hollow protective sleeve (sleeve 8) on the outside, which is integrally formed with the plug. It is used to cover the core column of the lead wire assembly, further increasing the creepage distance between the core columns and preventing compressor sparking, burning and other faults.
[0082] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A terminal block assembly, characterized in that: include: The core (1) and the base (2) are provided. The base (2) has a mounting hole (3). The core (1) can be inserted into the mounting hole (3) such that the first end (9) of the core (1) is located on the inner side of the base (2) and the second end (10) of the core (1) is located on the outer side of the base (2). After being inserted into the mounting hole (3), the core (1) includes an inner shaft segment (4) located on the inner side of the base (2). The core (1) is also provided with an anti-detachment post (5). The anti-detachment post (5) extends from the surface of the inner shaft segment (4) and extends toward the base (2). The extension direction of the anti-detachment post (5) is not parallel to the extension direction of the core (1).
2. The terminal assembly according to claim 1, characterized in that: The core post (1) has a receiving cavity (6) inside. The receiving cavity (6) extends from the end face of the second end (10) of the core post (1) toward the first end (9). The other end of the receiving cavity (6) has a preset distance greater than 0 from the first end (9). A connecting hole (7) is provided at the other end of the receiving cavity (6). The connecting hole (7) connects the other end of the receiving cavity (6) to the outer surface of the core post (1), so that the anti-detachment post (5) is inserted into the receiving cavity (6) and one end of the anti-detachment post (5) extends along the connecting hole (7) to the outer surface of the core post (1).
3. The terminal assembly according to claim 2, characterized in that: In the longitudinal section passing through the axis of the core column (1), the extending direction of the receiving cavity (6) is parallel to the axial direction of the core column (1), and the connecting hole (7) extends from one end that communicates with the receiving cavity (6) to the other end that is in contact with the outer surface of the core column (1). The extending direction of the connecting hole (7) is toward the base (2) or perpendicular to the axis of the core column (1).
4. The terminal assembly according to claim 3, characterized in that: When the connecting hole (7) extends from one end that communicates with the receiving cavity (6) to the other end that is in contact with the outer surface of the core post (1), and the extending direction of the connecting hole (7) is toward the base (2), the angle between the extending direction of the connecting hole (7) and the axis of the core post (1) is between (0, 90°).
5. The terminal assembly according to claim 2, characterized in that: The other end of the receiving cavity (6) is located inside the inner shaft section (4) of the core column (1), one end of the connecting hole (7) is connected to the other end of the receiving cavity (6), and the other end of the connecting hole (7) extends to the outer surface of the inner shaft section (4).
6. The terminal assembly according to claim 2, characterized in that: When the core post (1) is not inserted into the mounting hole (3), or after being inserted into the mounting hole (3) but before being activated, one end of the anti-detachment post (5) extends into the receiving cavity (6) but does not reach the other end of the receiving cavity (6), and the other end of the anti-detachment post (5) extends out of the outside of the second end (10) of the core post (1); After the core post (1) is inserted into the mounting hole (3) and activated, the other end of the anti-detachment post (5) can be forcefully applied to move into the receiving cavity (6), so that one end of the anti-detachment post (5) extends to the other end of the receiving cavity (6) and passes through the connecting hole (7) to the outer surface of the core post (1).
7. The terminal assembly according to claim 6, characterized in that: After the core post (1) is inserted into the mounting hole (3) and activated, the other end of the anti-detachment post (5) is completely located in the receiving cavity (6) without exceeding the end face of the second end (10) of the core post (1).
8. The terminal assembly according to claim 1, characterized in that: The inner shaft section (4) of the core column (1) is also fitted with a sleeve (8), and the sleeve (8) and the inner shaft section (4) are interference fit.
9. The terminal assembly according to claim 8, characterized in that: The sleeve (8) is made of polytetrafluoroethylene.
10. A compressor, characterized in that: Includes the terminal assembly according to any one of claims 1-9.