High-voltage connector with multi-section unlocking structure

Abstract

The utility model relates to a high-voltage connector with a multi-section unlocking structure, which comprises a plug, a socket, a CPA component, a multi-section lock catch structure with a plurality of lock catch structures and a multi-section unlocking structure with a plurality of unlocking structures, and the unlocking structures are in one-to-one correspondence with the lock catch structures. The multi-section lock catch structure is configured to sequentially complete the lock catch action of each lock catch structure in the plugging direction of the plug to the socket so as to lock the plug and the socket, and the multi-section unlocking structure is configured to sequentially release the lock catch state of the corresponding lock catch structure by each unlocking structure according to the reverse sequence of the lock catch action sequence of each lock catch structure; wherein after the locking state of the locking structure which completes the locking action for the first time is released, the plug and the socket are electrically disconnected, so that the electrical connection between the socket and the plug can be cut off after the high-voltage connector completes the unlocking operation for the first time; and the electrical connection can be forcibly disconnected in the pulling-out process of the plug and the socket so as to ensure safe pulling-out.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a high-voltage connector with a multi-segment unlocking structure. Background Technology

[0002] High-voltage connectors generally refer to connectors with an operating voltage of 60V or higher and primarily responsible for transmitting high current. Currently, high-voltage connectors have been applied to new energy vehicles (such as electric vehicles).

[0003] Existing high-voltage connectors mainly consist of a socket and a plug. The plug is equipped with a CPA (connector position assurance) component, the socket is equipped with socket terminals, and the plug is equipped with plug terminals that are electrically connected and mated with the socket terminals. The CPA component achieves the positioning effect between the plug and socket of the high-voltage connector after assembly, thereby enhancing the connection stability.

[0004] However, existing high-voltage connectors have shortcomings: because the operating voltage of high-voltage connectors is too high, to ensure safety, the high-voltage connector must be de-energized before unplugging the plug and socket. If the power is not de-energized beforehand or if the plug and socket are unplugged while energized due to misoperation, electric shock or leakage is very likely to occur, causing significant safety hazards. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a high-voltage connector with a multi-stage unlocking structure that can forcibly disconnect the electrical connection during the pulling process to ensure safe pulling out, in contrast to the above-mentioned prior art.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a high-voltage connector with a multi-segment unlocking structure, comprising:

[0007] A plug, having a plug housing;

[0008] A socket having a socket housing, which is assembled and mated with a plug;

[0009] The CPA component is configured to slide back and forth along the insertion and removal direction of the plug and socket on the upper side of the plug housing;

[0010] Its characteristic is that it further includes:

[0011] The multi-stage locking structure has multiple locking structures, which are configured to sequentially perform the locking action of each locking structure along the insertion direction from the plug to the socket, thereby locking the plug and the socket.

[0012] The multi-stage unlocking structure has multiple unlocking structures, each corresponding to a latching structure. The multi-stage unlocking structure is configured such that each unlocking structure releases the latching state of its corresponding latching structure in reverse order of the latching action sequence.

[0013] Once the first locking structure that has completed the locking action is released, the plug and socket are disconnected from electrical connection.

[0014] Improvedly, in the high-voltage connector with the multi-segment unlocking structure, the plug housing of the plug has:

[0015] The first snap-fit ​​structure is located at the top of the plug housing. The first snap-fit ​​structure includes two first snaps respectively disposed on the left and right sides of the plug housing axis.

[0016] The second snap-fit ​​structure is located at the top of the plug housing and between the two first snap-fits;

[0017] The third latch structure is located at the top of the plug housing. The third latch structure includes two third latches respectively disposed on the left and right sides of the plug housing axis; wherein, in the direction of plug insertion into the socket, the third latch is located behind the first latch on the corresponding side.

[0018] The socket housing has:

[0019] The first locking structure is located on the top of the socket housing. The first locking structure includes two first locking platforms respectively disposed on the left and right sides of the socket housing axis. Each first locking platform is engaged with the first buckle on the corresponding side.

[0020] The second latch structure is located at the top of the socket housing and between the two first latches. The second latch structure and the second snap-fit ​​structure are interlocked.

[0021] The third latch structure is located on the top of the socket housing. The third latch structure includes two third latches respectively located on the left and right sides of the socket housing axis. In the direction from which the socket moves toward the plug, the third latch is located behind the first latch on the corresponding side, and each third latch engages with the third latch on the corresponding side.

[0022] The third locking platform structure and the third locking buckle structure engage with each other to form the first locking structure; the second locking platform structure and the second locking buckle structure engage with each other to form the second locking structure; and the first locking platform structure and the first locking buckle structure engage with each other to form the third locking structure. The first locking structure, the second locking structure, and the third locking structure together form the multi-segment locking structure. Furthermore, the first locking structure, the second locking structure, and the third locking structure perform the locking action sequentially in the insertion direction from the plug to the socket.

[0023] Furthermore, in the high-voltage connector with the multi-segment unlocking structure, the height of the second snap-fit ​​structure relative to the top of the plug housing is equal to the height of the third snap-fit ​​relative to the top of the plug housing.

[0024] In a further improvement, in the high-voltage connector with a multi-segment unlocking structure, the third latch has a guide ramp that is configured to limit the third latch of the socket in the pull-out direction.

[0025] Improvedly, in the high-voltage connector with the multi-segment unlocking structure, the first card holder has:

[0026] The first inclined structure is located in the interlocking direction of the first card platform and the first buckle;

[0027] The second inclined structure is located in the opposite direction of the insertion direction of the first card platform and the first buckle;

[0028] The first tilting structure is configured to lift the first latch when the first latch is engaged with the first latch to accommodate the forward sliding of the CPA component; the second tilting structure is configured to complete the engagement of the first latch with the first latch after the first latch is lifted by the first tilting structure.

[0029] Improvedly, in the high-voltage connector with the multi-segment unlocking structure, the multi-segment unlocking structure includes:

[0030] A first unlocking structure is provided on the plug housing and is configured to release the locking state between the first latching structure and the first latching structure after being subjected to a first pressing operation.

[0031] The second unlocking structure is provided on the plug housing and is configured to release the locking state between the second latching structure and the second latching structure after the first unlocking structure completes the unlocking action and the second unlocking structure is subjected to the second pressing operation.

[0032] The third unlocking structure is provided on the plug housing and is configured to release the locking state between the second latching structure and the second latching structure after the second unlocking structure completes the unlocking action and the third unlocking structure is subjected to a third pressing operation.

[0033] Among them, the first unlocking structure, the second unlocking structure, and the third unlocking structure are independent of each other.

[0034] Furthermore, in the high-voltage connector with a multi-segment unlocking structure, an isolation component is provided between any two of the first unlocking structure, the second unlocking structure, and the third unlocking structure to isolate the pressing operation.

[0035] In a further improvement, in the high-voltage connector with a multi-segment unlocking structure, the first snap-fit ​​structure is disposed on the CPA component.

[0036] Compared with the prior art, the advantages of this utility model are as follows: In the high-voltage connector of this utility model, by setting a multi-segment locking structure and a corresponding multi-segment unlocking structure, the multi-segment locking structure completes the locking action of each locking structure in sequence, thereby realizing the plug-socket mating after multiple locking operations; correspondingly, the unlocking structures on the multi-segment unlocking structure release the locking state of the corresponding locking structure in reverse order of the locking action sequence, and after the first locking structure that completes the locking action is released, the electrical connection between the plug and the socket is disconnected, thereby ensuring that the high-voltage connector can cut off the electrical connection between the socket and the plug after the first unlocking operation, and ensuring that the electrical connection can be forcibly disconnected during the plug and socket removal process to ensure safe removal. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the socket structure of a high-voltage connector with a multi-segment unlocking structure in an embodiment of this utility model;

[0038] Figure 2 for Figure 1 A schematic diagram of the socket shown from another perspective;

[0039] Figure 3 This is a schematic diagram of the plug structure of a high-voltage connector with a multi-segment unlocking structure in an embodiment of this utility model;

[0040] Figure 4 for Figure 3 A schematic diagram of the plug from another perspective;

[0041] Figure 5 for Figure 4 A schematic diagram of the plug after the CPA component has been removed;

[0042] Figure 6 for Figure 5 A cross-sectional view of the plug shown;

[0043] Figure 7 A cross-sectional view of the corresponding states when the socket and plug are engaged to form the first and third locking structures;

[0044] Figure 8 A cross-sectional view showing the states in which the socket and plug mate to form the second and third locking structures;

[0045] Figure 9A cross-sectional view of the state in which the socket and plug mate to form the second locking structure;

[0046] Figure 10 This is a cross-sectional view of the structure corresponding to the high-voltage connector in this embodiment of the present invention when it completes its first unlocking.

[0047] Figure 11 This is a cross-sectional view of the structure corresponding to the high-voltage connector in this embodiment of the present invention when it completes the second unlocking.

[0048] Figure 12 This is a cross-sectional view of the structure corresponding to the high-voltage connector in this embodiment of the present invention when it completes the third unlocking. Detailed Implementation

[0049] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0050] This embodiment provides a high-voltage connector with a multi-segment unlocking structure. Specifically, see... Figures 1-9 As shown, the high-voltage connector with a multi-segment unlocking structure in this embodiment includes a plug 1, a socket 2, and a CPA component 3. The plug 1 has a plug housing 10; the socket 2 has a socket housing 20, and the socket 2 is assembled and mated with the plug 1. The CPA component 3 is configured to be slidably disposed on the upper side of the plug housing 10 along the insertion and removal direction of the plug 1 and the socket 2. As an improvement, the high-voltage connector in this embodiment also includes a multi-segment locking structure with multiple locking structures and a multi-segment unlocking structure with multiple unlocking structures, with each unlocking structure corresponding to a locking structure. The multi-segment locking structure is configured to sequentially perform the locking action of each locking structure along the insertion direction from the plug to the socket, thereby locking the plug and the socket. The multi-segment unlocking structure is configured to release the locking state of the corresponding locking structure sequentially in the reverse order of the locking action sequence of each locking structure. After the locking structure that has completed the locking action is released, the plug and the socket are electrically disconnected.

[0051] In the high-voltage connector of this embodiment, a multi-segment locking structure and a corresponding multi-segment unlocking structure are provided. The multi-segment locking structure performs locking actions on each locking structure in sequence, thereby achieving the mating of the plug and socket after multiple locking operations. Correspondingly, the unlocking structures on the multi-segment unlocking structure release the locking state of the corresponding locking structure in reverse order of the locking action sequence. After the first locking structure that completes the locking action is released, the electrical connection between the plug and socket is disconnected. This ensures that the high-voltage connector can cut off the electrical connection between the plug and socket after the first unlocking operation, and can forcibly disconnect the electrical connection during the removal of the plug and socket to ensure safe removal.

[0052] Specifically, in this embodiment, the plug housing 10 of the plug 1 has a first latching structure, a second latching structure 12, and a third latching structure. The first latching structure is located at the top of the plug housing 10 and includes two first latches 11 respectively disposed on the left and right sides of the plug housing axis. The second latching structure 12 is located at the top of the plug housing 10 and is located between the two first latches 11. The third latching structure is located at the top of the plug housing 10 and includes two third latches 13 respectively disposed on the left and right sides of the plug housing axis. In the direction of plug insertion into the socket, the third latches 13 are located behind the first latches 11 on the corresponding side.

[0053] Corresponding to the plug, the socket housing 20 of the socket 2 has a first latching structure, a second latching structure 22, and a third latching structure. The first latching structure is located at the top of the socket housing 20 and includes two first latches 21 respectively disposed on the left and right sides of the socket housing axis. Each first latch 21 is engaged with a first latch 11 on the corresponding side. The second latching structure 22 is located at the top of the socket housing 20 and between the two first latches 21. The second latching structure is engaged with a second latching structure. The third latching structure is located at the top of the socket housing 20 and includes two third latches 23 respectively disposed on the left and right sides of the socket housing axis. In the direction from the socket to the plug, the third latches 23 are located behind the first latches 21 on the corresponding side, and each third latch 23 is engaged with a third latch 13 on the corresponding side. The third locking platform structure and the third locking buckle structure interlock to form the first locking structure; the second locking platform structure and the second locking buckle structure interlock to form the second locking structure; and the first locking platform structure and the first locking buckle structure interlock to form the third locking structure. The first locking structure, the second locking structure, and the third locking structure together form the aforementioned multi-segment locking structure. Furthermore, the first locking structure, the second locking structure, and the third locking structure perform the locking action sequentially in the insertion direction from the plug to the socket.

[0054] Specifically, in the plug structure of this embodiment, the height of the second latching structure 12 relative to the top of the plug housing 10 is equal to the height of the third latching structure 13 relative to the top of the plug housing 10.

[0055] Specifically, in this embodiment, the first snap-fit ​​structure is provided on the CPA component 3. Of course, depending on actual needs, a reinforcing rib 11a can also be provided on the first snap-fit ​​11 of the first snap-fit ​​structure. Of course, a reinforcing rib 12a is also provided on the second latch structure 22. By providing corresponding reinforcing ribs on both the first snap-fit ​​structure and the second latch structure, the insertion stability after the plug and socket are mated can be enhanced.

[0056] To enhance the stability of the third latch after it engages with the third latch platform, and to prevent the third latch from being easily pulled out, in this embodiment, see [reference needed]. Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the third latch 13 has a guide ramp 13a, which is configured to limit the third latch 23 of the socket 2 in the pull-out direction.

[0057] In this embodiment, as the structural form of the first latch on the socket, the first latch 21 has a first tilting structure 21a and a second tilting structure 21b. The first tilting structure 21a is located in the insertion direction between the first latch and the first latch; the second tilting structure 21b is located in the opposite direction to the insertion direction between the first latch and the first latch. The first tilting structure 21a is configured to lift the first latch to accommodate the forward sliding of the CPA component 3 when the first latch and the first latch are latched. The second tilting structure 21b is configured to complete the latching between the first latch and the first latch after the first latch is lifted by the first tilting structure.

[0058] As an implementation of the aforementioned multi-stage unlocking structure, this embodiment includes a first unlocking structure 41, a second unlocking structure 42, and a third unlocking structure 43. Wherein:

[0059] The first unlocking structure 41 is provided on the plug housing 10 and is configured to release the locking state between the first latching structure and the first latching structure after being subjected to the first pressing operation.

[0060] The second unlocking structure 42 is provided on the plug housing 10 and is configured to release the locking state between the second latching structure and the second latching structure after the first unlocking structure completes the unlocking action and the second unlocking structure is subjected to the second pressing operation.

[0061] The third unlocking structure 43 is provided on the plug housing 10 and is configured to release the locking state between the second latching structure and the second latching structure after the second unlocking structure completes the unlocking action and the third unlocking structure is subjected to the third pressing operation.

[0062] Among them, the first unlocking structure, the second unlocking structure, and the third unlocking structure are independent of each other.

[0063] For example, an isolation component is provided between any two of the first, second, and third unlocking structures to isolate the pressing operation. By providing an isolation component between two unlocking structures, it is possible to prevent two adjacent locking structures from being accidentally unlocked in a single simultaneous unlocking action.

[0064] The following combination Figures 1-12 The working principle of the high-voltage connector with a multi-segment unlocking structure in this embodiment is explained as follows:

[0065] 1. To achieve plug-in (or mating) locking between the plug and socket.

[0066] The plug and socket are inserted into each other, so that the third latching structure on the plug and the third latching structure on the socket first latch into each other to form a first locking structure; then the second latching structure on the plug and the second latching structure on the socket latch into each other to form a second locking structure; finally, the insertion operation is continued, so that the first latching structure on the plug and the first latching structure on the socket latch into each other to form a third locking structure.

[0067] In this way, the first locking is completed when the plug and socket form the first locking structure through the insertion operation; the second locking is completed when the plug and socket form the second locking structure through the insertion operation; and the third locking is completed when the plug and socket form the third locking structure through the insertion operation. Thus, the three-stage locking between the plug and socket is completed.

[0068] II. Unlocking the plug and socket

[0069] Press the first unlocking structure in the direction in which the plug is pulled out relative to the socket to unlock the first locking structure and complete the first unlocking operation.

[0070] Then, after completing the first unlocking operation, press the second unlocking mechanism to unlock the second latch structure and complete the second unlocking operation;

[0071] Finally, after completing the second unlocking operation, press the third unlocking mechanism to unlock the third latch, thus completing the third unlocking operation;

[0072] In this way, by sequentially performing the above unlocking operations, the three-stage unlocking operation between the sockets in the initial locked state is completed. Moreover, since the electrical connection between the plug and the socket is already disconnected when the first unlocking action is performed, the high-voltage connector can cut off the electrical connection between the socket and the plug after the first unlocking operation is completed, ensuring that the electrical connection can be forcibly disconnected during the removal of the plug and socket to ensure safe removal.

[0073] Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-voltage connector with a multi-stage unlocking structure, including: A plug (1) having a plug housing (10); A socket (2) having a socket housing (20) and a plug (1) being assembled and mated together; The CPA component (3) is configured to be slidably disposed on the upper side of the plug housing (10) along the insertion and removal directions of the plug (1) and the socket (2); Its characteristic is that it further includes: The multi-stage locking structure has multiple locking structures, which are configured to sequentially perform the locking action of each locking structure along the insertion direction from the plug to the socket, thereby locking the plug and the socket. The multi-stage unlocking structure has multiple unlocking structures, each corresponding to a latching structure. The multi-stage unlocking structure is configured such that each unlocking structure releases the latching state of its corresponding latching structure in reverse order of the latching action sequence. Once the first locking structure that has completed the locking action is released, the plug and socket are disconnected from electrical connection.

2. The high-voltage connector with a multi-segment unlocking structure according to claim 1, characterized in that, The plug housing (10) of the plug (1) has: The first snap-fit ​​structure is located on the top of the plug housing (10). The first snap-fit ​​structure includes two first snap-fits (11) respectively disposed on the left and right sides of the plug housing axis. The second snap-fit ​​structure (12) is located on top of the plug housing (10) and between the two first snap-fits (11); The third latch structure is located on the top of the plug housing (10). The third latch structure includes two third latches (13) respectively disposed on the left and right sides of the plug housing axis; wherein, in the direction of plug insertion into socket, the third latch (13) is located behind the first latch (11) on the corresponding side. The socket housing (20) of the socket (2) has: The first latch structure is located on the top of the socket housing (20). The first latch structure includes two first latches (21) respectively disposed on the left and right sides of the socket housing axis. Each first latch (21) is engaged with the first latch (11) on the corresponding side. The second latch structure (22) is located on top of the socket housing (20) and between the two first latches (21), and the second latch structure is engaged with the second latch structure. The third latch structure is located on the top of the socket housing (20). The third latch structure includes two third latches (23) respectively located on the left and right sides of the socket housing axis. In the direction of the socket moving towards the plug, the third latch (23) is located behind the first latch (21) on the corresponding side. Each third latch (23) is engaged with the third latch (13) on the corresponding side. The third locking platform structure and the third locking buckle structure engage with each other to form the first locking structure; the second locking platform structure and the second locking buckle structure engage with each other to form the second locking structure; and the first locking platform structure and the first locking buckle structure engage with each other to form the third locking structure. The first locking structure, the second locking structure, and the third locking structure together form the multi-segment locking structure. Furthermore, the first locking structure, the second locking structure, and the third locking structure perform the locking action sequentially in the insertion direction from the plug to the socket.

3. The high-voltage connector with a multi-segment unlocking structure according to claim 2, characterized in that, The height of the second snap-fit ​​structure (12) relative to the top of the plug housing (10) is equal to the height of the third snap-fit ​​structure (13) relative to the top of the plug housing (10).

4. The high-voltage connector with a multi-segment unlocking structure according to claim 2, characterized in that, The third latch (13) has a guide ramp (13a) configured to limit the third latch (23) of the socket (2) in the pull-out direction.

5. The high-voltage connector with a multi-segment unlocking structure according to claim 2, characterized in that, The first card holder (21) has: The first inclined structure (21a) is located in the interlocking direction of the first card platform and the first buckle; The second tilting structure (21b) is located in the opposite direction of the insertion direction of the first card platform and the first buckle; The first tilting structure (21a) is configured to lift the first buckle to accommodate the forward sliding of the CPA component when the first buckle is engaged with the first buckle; the second tilting structure (21b) is configured to complete the engagement of the first buckle with the first buckle after the first buckle is lifted by the first tilting structure.

6. The high-voltage connector with a multi-segment unlocking structure according to any one of claims 1 to 5, characterized in that, The multi-stage unlocking structure includes: The first unlocking structure (41) is provided on the plug housing (10) and is configured to release the locking state between the first latching structure and the first latching structure after being subjected to the first pressing operation. The second unlocking structure (42) is provided on the plug housing (10) and is configured to release the locking state between the second latching structure and the second latching structure after the first unlocking structure completes the unlocking action and the second unlocking structure is subjected to the second pressing operation. The third unlocking structure (43) is provided on the plug housing (10) and is configured to release the locking state between the second latching structure and the second latching structure after the second unlocking structure completes the unlocking action and the third unlocking structure is subjected to the third pressing operation. Among them, the first unlocking structure, the second unlocking structure, and the third unlocking structure are independent of each other.

7. The high-voltage connector with a multi-segment unlocking structure according to claim 6, characterized in that, An isolation component is provided between any two of the first unlocking structure, the second unlocking structure, and the third unlocking structure to isolate the pressing operation.

8. The high-voltage connector with a multi-segment unlocking structure according to claim 6, characterized in that, The first snap-fit ​​structure is disposed on the CPA component (3).

Images