High-voltage connector for new energy storage

Abstract

The utility model provides a high-voltage connector for new energy storage, which comprises a plug shell, a conductive plug bush, a plug end assembly, a cable locking assembly and a lock catch assembly, the plug end assembly comprises an anti-contact finger element, a sealing gasket and a sealing pressing block, and the cable locking assembly comprises a locking ring, a plug and a locking nut. The connector is provided with the anti-contact finger element, so that fingers of an operator are prevented from being inserted into the conductive plug bush by mistake during assembly; a creepage groove is arranged, so that an enough electrical safety distance is ensured, and the voltage withstanding grade, the safety and the reliability of the connector are improved; a plurality of sealing, limiting and locking matching structures are arranged, so that the waterproof and dustproof performance and the assembly precision of the connector are improved, the assembly firmness is enhanced, and parts are prevented from falling off; the sealing pressing block is in damping fit with the first sleeve part, and when the plug and the socket are connected and are not locked, the sealing pressing block can still rotate, so that the direction of the connector is convenient to adjust, the assembly flexibility is improved, the construction process is more convenient and efficient, and the connector is suitable for more application scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage system application equipment, in particular to a high-voltage connector for new energy storage. Background Art

[0002] Energy storage connectors are usually used for high current connections and can be used in new energy, military, rail transportation, aerospace, aviation and other connector fields. They are necessary and important devices in high current energy storage systems. Energy storage connectors generally include plugs and sockets, which are connected to cables respectively. When the system is connected, the plug is inserted into the socket.

[0003] The current energy storage connector applications mainly have the following problems: insufficient safety, lack of human safety protection devices; insufficient voltage rating, small safe creepage distance; easy separation of the cable and connector body, plug and socket; the plug and socket cannot be rotated after being plugged in, and the installation flexibility is poor. Therefore, it is necessary to improve the connector structure. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high-voltage connector for new energy storage, which improves safety, reliability and sealing and makes construction more convenient and efficient.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-voltage connector for new energy storage comprises a plug housing, a conductive socket, a plug terminal assembly, a cable locking assembly and a locking assembly.

[0007] The conductive socket is arranged in the plug housing, and the conductive socket has a first conductive part arranged along a first direction and a second conductive part arranged along a second direction. The plug housing is correspondingly provided with a first sleeve part for accommodating the first conductive part and a second sleeve part for accommodating the second conductive part; the second conductive part extends out of the second sleeve part, and a creepage groove is provided between the second conductive part and the second sleeve part.

[0008] The plug-in terminal assembly includes an anti-touch finger element, a sealing gasket and a sealing pressure block. The anti-touch finger element is arranged inside the first conductive part. The first sleeve part is provided with a first sealing groove. The sealing gasket is arranged in the first sealing groove. The sealing pressure block is rotatably sleeved on the first sleeve part, and the sealing pressure block is against the sealing gasket.

[0009] The cable locking assembly includes a locking ring, a plug and a locking nut. The locking ring is sleeved on the second conductive part. The second sleeve part is provided with an external thread. The locking nut is threadedly connected to the second sleeve part. The plug is arranged between the locking ring and the locking nut.

[0010] The plug housing is provided with a locking channel, a socket connection cavity and a block channel, the locking channel penetrates the plug housing along a third direction, the socket connection cavity surrounds the second sleeve portion, and the block channel communicates between the locking channel and the socket connection cavity.

[0011] The lock assembly is arranged in the lock channel, and the lock assembly has a card block structure. The card block structure is correspondingly located in the card block channel, and the card block structure is used to lock the socket housing inserted into the socket connection cavity.

[0012] Preferably, the anti-touch finger element is an elongated cylindrical body, and the anti-touch finger element is coaxially arranged with the first sleeve portion; a mounting groove is provided on the plug housing, one end of the anti-touch finger element is inserted into the mounting groove, and the other end extends to be flush with the outer end surface of the sealing block.

[0013] Preferably, the outer wall of the first sleeve portion is provided with a damping assembly surface, the inner wall of the sealing pressure block is provided with a friction surface, and the sealing pressure block is damping-matched with the first sleeve portion.

[0014] Preferably, an annular hook is provided on the inner wall of the sealing pressure block, and an annular groove is correspondingly provided on the outer wall of the first sleeve portion, and the annular hook is engaged in the annular groove.

[0015] Preferably, the outer wall of the sealing pressing block is provided with a plurality of partition ribs, each of which extends along the first direction, and the plurality of partition ribs are arranged at intervals along the circumference of the sealing pressing block.

[0016] Preferably, a limiting step is provided on the inner wall of the first sleeve portion, and the end surface of the first conductive portion abuts against the limiting step.

[0017] Preferably, the locking ring has a side opening, and the inner wall of the locking ring is provided with an anti-slip groove.

[0018] Preferably, the inner wall of the plug protrudes inwardly to form a limit strip.

[0019] Preferably, the cable locking assembly further comprises a sealing ring, a second sealing groove is correspondingly provided on the second sleeve portion, the sealing ring is arranged in the second sealing groove, and the locking nut is sleeved on the outside of the sealing ring.

[0020] Preferably, the lock assembly includes a first lock, a second lock, a spring and a lock button, and the lock button is connected to the end of the second lock away from the first lock; the first lock is provided with a first card block and a slide groove, and the slide groove is located on the side of the first card block away from the lock button; the second lock is provided with a second card block, the second lock is installed in the first lock, the second card block is movably arranged in the slide groove, and the spring is arranged between the first lock and the second lock; wherein, when the lock assembly is installed in the lock channel, the first card block and the second card block enter the card block channel to form the card block structure.

[0021] Compared with the prior art, the beneficial effects of the utility model are as follows: in the high-voltage connector for new energy storage of the utility model, an anti-finger touch element is provided to prevent the operator's fingers from being accidentally inserted into the conductive socket during assembly; a creepage groove is provided to ensure a sufficient electrical safety distance, thereby improving the voltage resistance level, safety and reliability of the connector; multiple sealing, limiting and locking matching structures are provided to improve the waterproof and dustproof performance and assembly accuracy of the connector, enhance the assembly firmness and prevent parts from falling off; the sealing block is damped with the first sleeve part, and when the plug is connected to the socket and not locked, the sealing block can still be rotated, which is convenient for adjusting the direction of the connector, improves the assembly flexibility, makes the construction process more convenient and efficient, and is suitable for more application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an exploded view of a high-voltage connector for new energy storage according to an embodiment of the utility model.

[0023] Figure 2 This is a combined structural diagram of a high-voltage connector for new energy storage according to an embodiment of the utility model.

[0024] Figure 3 This is a cross-sectional view of a high-voltage connector for new energy storage according to an embodiment of the utility model.

[0025] Figure 4 It is a three-dimensional diagram of a plug housing and a conductive socket in one embodiment of the utility model.

[0026] Figure 5 It is a cross-sectional view of a plug housing and a conductive socket in one embodiment of the utility model.

[0027] Figure 6 It is a schematic structural diagram of a sealing pressing block in one embodiment of the utility model.

[0028] Figure 7 Schematic diagram of the structure of a locking ring and a plug in one embodiment of the utility model.

[0029] Figure 8Schematic diagram of the structure of a lock assembly in one embodiment of the utility model.

[0030] In the figure, 10-plug housing, 11-first sleeve portion, 111-first sealing groove, 112-damping assembly surface, 113-annular card groove, 114-limiting step, 12-second sleeve portion, 121-external thread, 122-second sealing groove, 13-creepage groove, 14-locking channel, 15-socket connection cavity, 16-card block channel, 17-installation groove, 20-conductive socket, 21-first conductive portion, 22-second conductive portion, 30-plug terminal assembly, 31-anti-touch finger element Parts, 32-sealing gasket, 33-sealing pressure block, 331-friction surface, 332-annular hook, 333-spacer, 40-cable locking assembly, 41-locking ring, 411-side opening, 412-anti-slip groove, 42-plug, 421-limiting strip, 43-locking nut, 44-sealing ring, 50-locking assembly, 51-first locking buckle, 511-first clamping block, 512-slide groove, 52-second locking buckle, 521-second clamping block, 53-spring, 54-locking button. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model. It can be understood that some technical means of the various embodiments described herein can be replaced or combined with each other without conflict.

[0032] In the description of the present invention, if there are terms such as "first", "second", etc., they are only used to distinguish the objects described, and do not have any order or technical meaning. Therefore, the objects defined as "first", "second", etc. may explicitly or implicitly include one or more of the objects. Moreover, "one" or "a" and similar words do not indicate a quantity limitation, but indicate the existence of at least one, and "multiple" means not less than two.

[0033] In the description of the utility model specification, reference to "one embodiment" or "some embodiments" etc. means that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in the specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0034] Please refer to Figures 1 to 8 The utility model provides a high-voltage connector for new energy storage, which includes a plug housing 10, a conductive socket 20, a plug end assembly 30, a cable locking assembly 40 and a locking assembly 50. The plug housing 10 is made of insulating plastic, and the conductive socket 20 is made of conductive metal such as copper, which is used to achieve the conductive connection between the plug and the cable and the socket; the plug end assembly 30 is used to achieve the connection and sealing between the plug and the socket, the cable locking assembly 40 is used to lock and connect the cable and the plug, and the locking assembly 50 is used to lock the plug and the socket.

[0035] Specifically, the conductive socket 20 is arranged in the plug housing 10, and the conductive socket 20 has a first conductive portion 21 arranged along the first direction X and a second conductive portion 22 arranged along the second direction Y. The plug housing 10 is correspondingly provided with a first sleeve portion 11 for accommodating the first conductive portion 21 and a second sleeve portion 12 for accommodating the second conductive portion 22; the second conductive portion 22 extends out of the second sleeve portion 12, and a creepage groove 13 is provided between the second conductive portion 22 and the second sleeve portion 12. Among them, the plug housing 10 is an L-shaped structure as a whole, and the second direction Y is perpendicular to the first direction X. The depth of the creepage groove 13 can be reasonably set according to application requirements to ensure sufficient electrical safety distance and improve the voltage resistance level, safety and reliability of the connector.

[0036] The plug-in terminal assembly 30 includes an anti-touch finger element 31, a sealing pad 32 and a sealing block 33. The anti-touch finger element 31 is arranged inside the first conductive part 21. The first sleeve part 11 is provided with a first sealing groove 111. The sealing pad 32 is arranged in the first sealing groove 111. The sealing block 33 is rotatably sleeved on the first sleeve part 11, and the sealing block 33 and the sealing pad 32 are against each other. Among them, the anti-touch finger element 31 can be made of insulating plastic. The anti-touch finger element 31 is used to prevent the operator's fingers from being mistakenly inserted into the conductive socket 20 during assembly, thereby improving safety. The sealing block 33 is rotatably assembled to the first sleeve part 11. When the plug is connected to the socket and is not locked, the sealing block can still be rotated, which is convenient for adjusting the direction of the connector, improving the assembly flexibility, making the construction process more convenient and efficient, and suitable for more application scenarios. At the same time, the sealing block 333 cooperates with the sealing pad 32 to enhance the sealing performance when the plug and the socket are plugged in, and improve the waterproof and dustproof performance of the connector.

[0037] In applications, the sealing gasket 32 ​​may be a rubber sealing ring and may have multiple sealing lips to achieve multiple seals and improve the waterproof level of the connector.

[0038] The cable locking assembly 40 includes a locking ring 41, a plug 42 and a locking nut 43. The locking ring 41 is sleeved on the second conductive part 22. The second sleeve part 12 is provided with an external thread 121. The locking nut 43 is threadedly connected to the second sleeve part 12. The plug 42 is arranged between the locking ring 41 and the locking nut 43. In application, the second conductive part 22 is connected to the cable. The locking ring 41, the plug 42 and the locking nut 43 are used to perform multiple locking on the connector and the cable to enhance the connection firmness and reliability and prevent the cable from coming out.

[0039] The plug housing 10 is provided with a lock channel 14, a socket connection cavity 15 and a block channel 16. The lock channel 14 penetrates the plug housing 10 along the third direction Z, the socket connection cavity 15 surrounds the second sleeve portion 12, and the block channel 16 communicates between the lock channel 14 and the socket connection cavity 15. The lock assembly 50 is arranged in the lock channel 14, and the lock assembly 50 has a block structure, and the block structure is correspondingly located in the block channel 16. The block structure is used to lock the socket housing inserted into the socket connection cavity 15. Among them, the third direction Z is perpendicular to the first direction X and the second direction Y, the structure of the lock channel 14 is adapted to the structure of the lock assembly 50, and the structure of the socket connection cavity 15 is adapted to the structure of the socket housing. When the plug is plugged into the socket, a part of the socket housing enters the socket connection cavity 15, and the lock assembly 50 can be used to lock the plug and the socket.

[0040] The utility model provides a high-voltage connector for new energy storage with an anti-finger touch element 31 and a creepage groove 13, which improves the safety and reliability of the connector, and provides multiple sealing and locking matching structures, which improves the waterproof and dustproof performance and assembly accuracy of the connector, enhances the assembly firmness, and avoids parts falling off; the sealing pressure block 33 cooperates with the second sleeve portion 12 to facilitate the adjustment of the connector direction, improves the assembly flexibility, makes the construction process more convenient and efficient, and is suitable for more application scenarios.

[0041] See also Figure 1 and Figure 3 In some embodiments, the anti-touch finger element 31 is a long cylindrical body, and the anti-touch finger element 31 is coaxially arranged with the first sleeve portion 11. The plug housing 10 is provided with a mounting groove 17, one end of the anti-touch finger element 31 is inserted into the mounting groove 17, and the other end extends to be flush with the outer end surface of the sealing block 33. The anti-touch finger element 31 can be installed in the mounting groove 17 by threaded assembly or interference assembly, and the anti-touch finger element 31 can prevent the operator's finger from being accidentally inserted into the conductive socket 20 during assembly, thereby improving safety.

[0042] See also Figure 3 , Figure 4 and Figure 6 In some embodiments, the outer wall of the first sleeve portion 11 is provided with a damping assembly surface 112, the inner wall of the sealing block 33 is provided with a friction surface 331, and the sealing block 33 is damped with the first sleeve portion 11. It can be understood that the damping matching relationship between the sealing block 33 and the first sleeve portion 11 can be achieved by surface treatment of the outer wall of the first sleeve portion 11 and the inner wall of the sealing block 33, and controlling the tolerance between the outer diameter of the first sleeve portion 11 and the inner diameter of the sealing block 33. The damping matching of the sealing block 33 and the first sleeve portion 11 not only allows the sealing block 33 to rotate outside the first sleeve portion 11, but also prevents the sealing block 33 from falling off, thereby enhancing practicality.

[0043] Furthermore, the inner wall of the sealing block 33 is provided with an annular hook 332, which is arranged around the inner wall of the sealing block 33, and the outer wall of the first sleeve portion 11 is correspondingly provided with an annular groove 113, which is arranged around the first sleeve portion 11, and the annular hook 332 is engaged in the annular groove 113. When the sealing block 33 is fitted onto the first sleeve portion 11, the annular hook 332 is engaged in the annular groove 113, which plays a limiting role, so that the sealing block 33 cannot fall off from the first sleeve portion 11, and the annular hook 332 cooperates with the annular groove 113 to ensure that the sealing block 33 can still rotate freely.

[0044] Furthermore, the outer wall of the sealing block 33 is provided with a plurality of ribs 333 for mating with the socket housing, each rib 333 extends along the first direction X (parallel to the axial direction of the sealing block 33), and the plurality of ribs 333 are arranged at intervals along the circumference of the sealing block 33. The plurality of ribs 33 may be integrally formed on the sealing block 33.

[0045] like Figure 5 As shown, in some embodiments, the inner wall of the first sleeve portion 11 is provided with a limiting step 114, and the end surface of the first conductive portion 21 abuts against the limiting step 114. In this way, the assembly accuracy of the conductive socket 20 is ensured, and the conductive socket 20 is prevented from shifting or falling off.

[0046] Combination Figure 3 and Figure 7 In some embodiments, the locking ring 41 has a side opening 411, and the inner wall of the locking ring 41 is provided with an anti-slip groove 412. The locking ring 41 may have a certain elasticity, and the inner diameter of the locking ring 41 is set to be slightly smaller than the outer diameter of the second conductive part 22. The setting of the side opening 411 ensures that the locking ring 41 can be expanded within a certain range. When the cable is connected to the second conductive part 22, the locking ring 41 can tightly wrap the second conductive part 22 and the cable, and the anti-slip groove 412 can further limit the cable, thereby preventing the cable from falling off and enhancing the connection firmness and reliability.

[0047] Furthermore, the inner wall of the plug 42 protrudes inward to form a limit strip 421. The limit strip 421 can extend in an axial spiral along the plug 42, or the limit strip 421 can be set as a mutually spaced annular structure, or other reasonable structures. When the cable is inserted into the plug 42, the limit strip 421 can improve the adhesion to the cable, prevent the cable from falling off, and improve the connection reliability.

[0048] In other embodiments, the cable locking assembly 40 further includes a sealing ring 44, a second sealing groove 122 is correspondingly provided on the second sleeve portion 12, the sealing ring 44 is disposed in the second sealing groove 122, and the locking nut 43 is sleeved on the outside of the sealing ring 44. The sealing ring 44 can enhance the sealing performance when the connector is connected to the cable, improve the waterproof and dustproof performance, and enhance the reliability. Among them, the sealing ring 44 can be an O-type rubber sealing ring.

[0049] Combination Figure 1 , Figure 5 and Figure 8In some other embodiments, the lock assembly 50 includes a first lock 51, a second lock 52, a spring 53 and a lock button 51, and the lock button 54 is connected to the end of the second lock 52 away from the first lock 51; the first lock 51 is provided with a first clamping block 511 and a slide groove 512, and the slide groove 512 is located on the side of the first clamping block 511 away from the lock button 54; the second lock 52 is provided with a second clamping block 521, the second lock 52 is installed in the first lock 51, the second clamping block 521 is movably arranged in the slide groove 512, and the spring 53 is arranged between the first lock 51 and the second lock 52. When the lock assembly 50 is installed in the lock channel 14, the first clamping block 511 and the second clamping block 521 enter the clamping block channel 16 to form the clamping block structure described above.

[0050] Specifically, after the lock assembly 50 is assembled, the spring 53 exerts an outward force on the first lock 51 and the second lock 52, so that the first card block 511 and the second card block 521 are close to each other; when the first lock 51 and the lock button 54 are pressed oppositely, the spring 53 is compressed, and at the same time, the second card block 521 moves away from the first card block 511 along the slide groove 512. When the plug is plugged into the socket, a part of the socket shell enters the socket connection cavity 15. When the lock assembly 50 is not pressed, the first card block 511 and the second card block 521 form a snap-fit ​​structure, which is tightly against the socket shell to lock the plug and the socket. When the first lock 51 and the lock button 54 are pressed oppositely, the first card block 511 and the second card block 521 move away from each other, thereby detaching from the socket shell.

[0051] In summary, the utility model provides a high-voltage connector for new energy storage, which is equipped with an anti-finger touch element to prevent the operator's fingers from accidentally inserting into the conductive socket during assembly; a creepage groove is provided to ensure a sufficient electrical safety distance, thereby improving the voltage resistance level, safety and reliability of the connector; multiple sealing, limiting and locking matching structures are provided to improve the waterproof and dustproof performance and assembly accuracy of the connector, enhance the assembly firmness and prevent parts from falling off; the sealing block is damped with the first sleeve part, and when the plug is connected to the socket and not locked, the sealing block can still rotate, which is convenient for adjusting the direction of the connector, improves the assembly flexibility, makes the construction process more convenient and efficient, and is suitable for more application scenarios.

[0052] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A high voltage connector for new energy storage, characterized in that: It includes a plug housing, a conductive socket, a plug terminal assembly, a cable locking assembly and a locking assembly; The conductive socket is arranged in the plug housing, and the conductive socket has a first conductive part arranged along a first direction and a second conductive part arranged along a second direction. The plug housing is correspondingly provided with a first sleeve part for accommodating the first conductive part and a second sleeve part for accommodating the second conductive part; the second conductive part extends out of the second sleeve part, and a creepage groove is provided between the second conductive part and the second sleeve part; The plug-in terminal assembly comprises an anti-touch finger element, a sealing gasket and a sealing pressure block, wherein the anti-touch finger element is arranged inside the first conductive part, the first sleeve part is provided with a first sealing groove, the sealing gasket is arranged in the first sealing groove, the sealing pressure block is rotatably sleeved on the first sleeve part, and the sealing pressure block abuts against the sealing gasket; The cable locking assembly comprises a locking ring, a plug and a locking nut, wherein the locking ring is sleeved on the second conductive part, the second sleeve part is provided with an external thread, the locking nut is threadedly connected with the second sleeve part, and the plug is arranged between the locking ring and the locking nut; The plug housing is provided with a lock channel, a socket connection cavity and a block channel, the lock channel penetrates the plug housing along the third direction, the socket connection cavity surrounds the second sleeve portion, and the block channel communicates between the lock channel and the socket connection cavity; The lock assembly is arranged in the lock channel, and the lock assembly has a card block structure. The card block structure is correspondingly located in the card block channel, and the card block structure is used to lock the socket housing inserted into the socket connection cavity.

2. The high-voltage connector for new energy storage according to claim 1, characterized in that: The anti-touch finger element is a long cylindrical body, and is coaxially arranged with the first sleeve portion; a mounting groove is provided on the plug housing, one end of the anti-touch finger element is inserted into the mounting groove, and the other end extends to be flush with the outer end surface of the sealing block.

3. The high-voltage connector for new energy storage according to claim 1, characterized in that: The outer wall of the first sleeve portion is provided with a damping assembly surface, the inner wall of the sealing pressing block is provided with a friction surface, and the sealing pressing block is damping-matched with the first sleeve portion.

4. The high-voltage connector for new energy storage according to claim 1, characterized in that: The inner wall of the sealing pressing block is provided with an annular hook, and the outer wall of the first sleeve portion is correspondingly provided with an annular groove, and the annular hook is engaged in the annular groove.

5. The high-voltage connector for new energy storage according to claim 1, characterized in that: The outer wall of the sealing pressing block is provided with a plurality of partition ribs, each of which extends along the first direction, and the plurality of partition ribs are arranged at intervals along the circumference of the sealing pressing block.

6. The high-voltage connector for new energy storage according to claim 1, characterized in that: The inner wall of the first sleeve portion is provided with a limiting step, and the end surface of the first conductive portion abuts against the limiting step.

7. The high-voltage connector for new energy storage according to claim 1, characterized in that: The locking ring has a side opening, and the inner wall of the locking ring is provided with an anti-slip groove.

8. The high-voltage connector for new energy storage according to claim 1, characterized in that: The inner wall of the plug protrudes inward to form a limiting strip.

9. The high-voltage connector for new energy storage according to claim 1, characterized in that: The cable locking assembly also includes a sealing ring. The second sleeve portion is correspondingly provided with a second sealing groove. The sealing ring is arranged in the second sealing groove, and the locking nut is sleeved on the outside of the sealing ring.

10. The high-voltage connector for new energy storage according to claim 1, characterized in that: The lock assembly includes a first lock, a second lock, a spring and a lock button, and the lock button is connected to the end of the second lock away from the first lock; the first lock is provided with a first card block and a slide groove, and the slide groove is located on the side of the first card block away from the lock button; the second lock is provided with a second card block, the second lock is installed in the first lock, the second card block is movably arranged in the slide groove, and the spring is arranged between the first lock and the second lock; wherein, when the lock assembly is installed in the lock channel, the first card block and the second card block enter the card block channel to form the card block structure.

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