Connector with secondary lock catch
By designing a secondary lock structure on the high-voltage connector, the problems of loosening and not being inserted in place during the plug-in and unplugging process are solved, and the safe and convenient plug-in of the high-voltage connector is achieved, improving safety.
Patent Information
- Application Number
- CN202420721339.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2034-04-09
AI Technical Summary
Existing high-voltage connectors are easily loosened during the plug-in process, and it is impossible to determine whether the plug is not tightly inserted, which poses a safety hazard for electric shock.
A connector with a secondary lock is designed. By setting a snap, block and secondary lock structure on the plug and socket, the rotation of the snap and the matching of the block can be used to achieve locking and unlocking to ensure that Correct butt and safe separation of the plug and socket.
It effectively avoids the safety hazards of electric shock caused by loosening of high-voltage connectors, ensures the correct plug and socket connection and convenient separation, and improves the safety and convenience of the connector.
Smart Images
Figure CN222127121U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-voltage connectors, in particular to a connector with a secondary lock. Background Art
[0002] With the rise of hybrid and electric vehicles, automotive connectors have become a new hotspot for connector applications. The important features that distinguish automotive connectors from ordinary connectors are safety and convenience. Taking the connector used in new energy vehicles as an example, its main function is to connect power modules to modules, power supplies to motors, etc. Its basic components include plugs and sockets. The tail end of the plug is connected to the cable; the tail end of the socket is also connected to the cable. When the plug and the socket cooperate with each other (the end not connected to the cable), the circuit is turned on.
[0003] The electrical connectors used in new energy vehicles need to have high safety performance and be easy to plug and use. They must ensure that the connector plug and socket will not be easily separated after being connected, and that the connector plug and socket are easy to separate.
[0004] However, there are some problems with the existing technology: the locking structure on the market is generally bolted or simply snapped. Complicated connection methods such as bolted connection are not convenient for plugging and unplugging the connector; simple one-time snapping is easily disengaged due to external stress, such as heavy objects falling, vibration, etc., and it is impossible to determine whether the plug is not plugged in tightly. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a connector with a secondary lock. By adding a secondary lock structure to the plug and socket, the problem of the snap-on connector not being properly inserted can be effectively solved, thereby avoiding the potential safety hazard of electric shock caused by the loosening of the high-voltage connector.
[0006] The utility model solves the above-mentioned technical problem with the following technical solution: A connector with a secondary lock, comprising a plug, a socket and a lock structure, the plug being provided with an insertion cavity cooperating with the socket, the plug being provided with a first placement groove, the lock structure comprising a buckle, a pressure block and a secondary lock, the middle part of the buckle being rotatably connected in the first placement groove, a pressure block being slidably sleeved on one end of the buckle, the pressure block being clamped in cooperation with the first placement groove to lock the position of the buckle, the other end of the buckle being provided with a clamping groove, the socket being provided with a clamping block clamped with the clamping groove, one end of the secondary lock being rotatably connected to the socket, and the other end of the secondary lock being clamped with both sides of one end of the buckle through the locking structure.
[0007] The beneficial effects of adopting the above technical solution are:
[0008] By adding a secondary locking structure to the plug and socket, the problem of the snap-on connector not being properly inserted can be effectively solved, avoiding the potential safety hazard of electric shock caused by the high-voltage connector coming loose.
[0009] On the basis of the above technical solution, the present invention can also be improved as follows.
[0010] Furthermore, the pressing block is a hollow inverted U-shaped structure, and horizontal guide grooves are provided through the two outer sides of its bottom, guide blocks slidingly matched with the guide grooves are provided on both sides of one end of the inner wall of the first mounting groove, and L-shaped limiting parts are provided on both sides of the other end of the inner wall, and limiting blocks clamped with the corresponding limiting parts are provided on the relative outer sides of the pressing block, and the limiting blocks extend out of the guide groove along the direction from the inside to the outside of the pressing block.
[0011] The beneficial effect of adopting the above further scheme is that the guide groove set on the pressing block and the guide block set on the first placement groove cooperate to facilitate the pushing of the pressing block; the limit block set on the pressing block and the limit part set on the first placement groove can prevent the pressing block from exiting the first placement groove.
[0012] Furthermore, the locking structure includes a latching protrusion and a limiting step. Support ears extending vertically downward are symmetrically installed on both sides of the other end of the secondary lock. The inner sides of the two supporting ears are installed with the latching protrusion, and the outer sides of the buckle are provided with limiting steps that are engaged with the latching protrusion.
[0013] The beneficial effect of adopting the above further solution is that the buckle is easily locked by clamping the clamping protrusion on the secondary lock buckle and the limiting step on the buckle.
[0014] Furthermore, the locking structure also includes a spring, a stopper is provided on one end of the pressure block, and two ends of the spring abut against one end of the buckle and the stopper respectively.
[0015] The beneficial effect of adopting the above further solution is to utilize the restoring force of the spring to realize that the pressing block automatically returns to the initial position after being released.
[0016] Furthermore, a U-shaped notch for abutting against the spring is provided on one end of the buckle.
[0017] The beneficial effect of adopting the above further solution is that it is easy to place the spring and prevent the spring from accidentally falling.
[0018] Furthermore, the socket is provided with a second placement groove, the clamping block is arranged in the second placement groove, and the outer side of the second placement groove is rotatably connected to the secondary lock.
[0019] The beneficial effect of adopting the above further solution is that it is easy to install the secondary lock.
[0020] Furthermore, a guide frame is provided at one end of the second placement groove close to the plug.
[0021] The beneficial effect of adopting the above further solution is that it plays a role of positioning and guiding when the plug and the socket are connected.
[0022] Furthermore, the buckle is rotatably connected to the first mounting groove via a pin shaft, a torsion spring is mounted on the pin shaft, and the torsion spring is located between the bottom of the buckle and the first mounting groove.
[0023] The beneficial effect of adopting the above further solution is that the cooperation between the pin and the torsion spring can realize the rotation of the buckle.
[0024] Furthermore, the pressing block is provided with a guide arrow for indicating the moving direction.
[0025] The beneficial effect of adopting the above further solution is that it is convenient for users to use.
[0026] Furthermore, the secondary lock is made of stainless steel.
[0027] The beneficial effect of adopting the above further solution is that it has a certain elasticity and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a structural schematic diagram of the utility model;
[0029] Figure 2 This is an exploded view of the plug of the utility model;
[0030] Figure 3 This is a schematic diagram of the structure of the plug of the utility model;
[0031] Figure 4 This is a schematic diagram of the unlocked state of the plug of the utility model;
[0032] Figure 5 This is a schematic diagram of the structure of the socket of the utility model;
[0033] Figure 6 A schematic diagram of the state of the plug of the utility model during the process of being inserted into the socket;
[0034] Figure 7 This is a schematic diagram of the plug being inserted into the socket without being locked again;
[0035] Figure 8 This is a schematic diagram of a state where the buckle is located above the card block and is not inserted into the card block;
[0036] Fig. 9 This is a schematic diagram of a state where the buckle is located in front of the card block and is not inserted into the card block;
[0037] Fig.10 It is a schematic diagram of the state where the clamping protrusion is clamped with the limiting step;
[0038] Fig.11 It is a schematic diagram of the structure of the secondary lock;
[0039] Fig.12 One of the structural schematic diagrams of the briquette;
[0040] Fig.13 This is the second structural diagram of the briquette.
[0041] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0042] 1. Plug; 2. First placement groove; 3. Buckle; 4. Press block; 41. Guide groove; 42. Limit block; 43. Slide groove; 5. Spring; 6. Guide block; 7. Limit part; 8. Socket; 9. Secondary lock; 10. Guide frame; 11. Boss; 12. Block; 13. Limit step. DETAILED DESCRIPTION
[0043] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0044] Embodiment 1:
[0045] like Figure 1-13 As shown, in this embodiment, a connector with a secondary lock includes a plug 1, a socket 8 and a lock structure, the plug 1 is provided with an insertion cavity that cooperates with the socket 8, the plug 1 is provided with a first placement groove 2, the lock structure includes a buckle 3, a pressure block 4 and a secondary lock 9, the middle part of the buckle 3 is rotatably connected in the first placement groove 2, a pressure block 4 is slidably sleeved on one end of the buckle 3, the pressure block 4 is clamped with the first placement groove 2, so as to lock the position of the buckle 3, the other end of the buckle 3 is provided with a slot, the socket 8 is provided with a clamping block 12 that is clamped with the slot, one end of the secondary lock 9 is rotatably connected to the socket 8, and the other end of the secondary lock 9 is clamped with both sides of one end of the buckle 3 through the locking structure.
[0046] The beneficial effect of this embodiment is that by adding a secondary locking structure to the plug 1 and the socket 8, the problem of the snap-on connector not being properly inserted can be effectively solved, avoiding the potential safety hazard of electric shock caused by the high-voltage connector being loose.
[0047] When the device is used, after the card slot of the card buckle 3 on the plug 1 is engaged with the card block 12 on the socket 8, the position of the card buckle 3 is locked by the secondary lock 9, and the locking of the connector is completed.
[0048] It should be noted that if Figure 1 As shown, when the plug 1 is inserted into the socket 8, a click sound is heard from the buckle 3, indicating that the plug has been inserted into place. Figure 7 The figure shows the plug-in in place state. After the plug-in is completed, the secondary lock buckle 9 is rotated and snapped into the first placement groove 2 of the buckle 3 of the plug 1, and the locking of the connector is completed at this time.
[0049] Example 2
[0050] Preferably, on the basis of Example 1, the pressing block 4 is a hollow inverted U-shaped structure, and horizontal guide grooves 41 are provided on both outer sides of its bottom, guide blocks 6 that slide with the guide grooves 41 are provided on both sides of one end of the inner wall of the first mounting groove 2, and L-shaped limiting parts 7 are provided on both sides of the other end of the inner wall, and limiting blocks 42 that are clamped with the corresponding limiting parts 7 are provided on the relative outer sides of the pressing block 4, and the limiting blocks 42 extend out of the guide groove 41 along the direction from the inside to the outside of the pressing block 4.
[0051] The beneficial effects of this embodiment are: the guide groove 41 provided on the pressing block 4 cooperates with the guide block 6 provided on the first placement groove 2 to facilitate the pushing of the pressing block 4; the limit block 42 provided on the pressing block 4 and the limit portion 7 provided on the first placement groove 2 can prevent the pressing block 4 from exiting the first placement groove 2.
[0052] Furthermore, two sides of the inner wall of the pressing block 4 are provided with sliding grooves 43 , and one end of the buckle 3 is slidably disposed in the sliding groove 43 .
[0053] Further, if Figure 2 As shown, the guide block 6 in the second receiving groove 2 is a square block, the guide groove 41 is a transverse L-shaped groove, and the left end of the guide block 6 is provided with a chamfer to facilitate the lowering of the pressing block 4; the limiting portion 7 is an L-shaped step, and the limiting portion 7 on the pressing block 4 in the initial position is engaged with the L-shaped step to prevent the pressing block 4 from withdrawing from the second receiving groove 2, ensuring that the pressing block 4 can only be pushed forward.
[0054] It should be noted that without the above-mentioned limiting structure, it cannot be guaranteed that the pressing block 4 can be pressed down, and the positions of the pressing block 4 and the buckle 3 cannot be locked well to avoid misoperation by the staff and cause safety hazards.
[0055] Example 3
[0056] Preferably, on the basis of Examples 1-2, the locking structure includes a latching protrusion 11 and a limiting step 13, and support ears extending vertically downward are symmetrically installed on both sides of the other end of the secondary lock buckle 9, and the inner sides of the two support ears are installed with the latching protrusion 11, and the outer sides of the buckle 3 are provided with limiting steps 13 that are snap-fitted with the latching protrusion 11.
[0057] The beneficial effect of this embodiment is that the buckle 3 is easily locked by clamping the clamping protrusion 11 on the secondary lock buckle 9 and the limiting step 13 on the buckle 3.
[0058] Example 4
[0059] Preferably, on the basis of embodiments 1-3, the locking structure further includes a spring 5, a stopper is provided on one end of the pressure block 4, and two ends of the spring 5 abut against one end of the buckle 3 and the stopper respectively.
[0060] The beneficial effect of this embodiment is that the restoring force of the spring 5 is utilized to realize that the pressing block 4 automatically returns to the initial position after being released.
[0061] Example 5
[0062] Preferably, on the basis of Embodiment 4, a U-shaped notch for abutting against the spring 5 is provided on one end of the buckle 3 .
[0063] The beneficial effects of this embodiment are: it is easy to place the spring 5 and prevent the spring from falling accidentally.
[0064] Example 6
[0065] Preferably, on the basis of Embodiment 1, a second mounting groove is provided on the socket 8, the clamping block 12 is provided in the second mounting groove, and the outer side of the second mounting groove is rotatably connected to the secondary lock 9.
[0066] The beneficial effect of this embodiment is that it is easy to install the secondary lock buckle 9.
[0067] Example 7
[0068] Preferably, on the basis of Embodiment 6, a guide frame 10 is further provided at one end of the second placement groove close to the plug 1 .
[0069] The beneficial effect of this embodiment is that it plays a role of positioning and guiding when the plug 1 and the socket 8 are connected.
[0070] Example 8
[0071] Preferably, on the basis of embodiments 1-7, the buckle 3 is rotatably connected to the first mounting groove 2 via a pin, a torsion spring is installed on the pin, and the torsion spring is located between the bottom of the buckle 3 and the first mounting groove 2.
[0072] The beneficial effect of this embodiment is that the cooperation between the pin and the torsion spring can realize the rotation of the buckle 3.
[0073] Example 9
[0074] Preferably, the pressing block 4 is provided with a guide arrow for indicating the moving direction.
[0075] The beneficial effects of this embodiment are: it is convenient for users to use and prevents people from operating incorrectly and damaging the pressing block 4.
[0076] Example 10
[0077] Preferably, based on embodiments 1-9, the secondary lock buckle 9 is made of stainless steel.
[0078] The beneficial effects of this embodiment are: it has certain elasticity and a long service life.
[0079] Furthermore, the secondary lock 9 is stamped from a 0.6 mm thick stainless steel plate, which is low in cost, easy to install, and can pass a 96-hour salt spray test.
[0080] It should be noted that the socket 8 with the secondary lock 9 can effectively prevent the plug 1 from being not fully inserted. Fig. 9 , 10 As shown, Fig. 9 The buckle 3 of the middle plug 1 has not yet been inserted into the block 12 of the socket 8, and the buckle 3 is located above the block 12. At this time, the secondary lock buckle 9 of the socket 8 will be in conflict with the buckle 3 of the plug 1 during the rotation process, causing the secondary lock buckle 9 to be unable to rotate into place, and the operator can identify it; Fig.10 The buckle 3 of the middle plug 1 has not yet been inserted into the block 12 of the socket 8. The buckle 3 is located in front of the block 12. At this time, the secondary lock 9 of the socket 8 will interfere with the shell of the plug 1 during the rotation process, causing the secondary lock 9 to be unable to rotate into place, which can also be recognized by the operator.
[0081] In summary, the plug 1 and the socket 8 are properly inserted only when the secondary lock 9 can be fully rotated and inserted into the slot of the lock 3, thereby avoiding the situation where the high-voltage connector using this type of lock structure is not properly inserted, greatly increasing the safety of the lock-type plug-in connector. Similarly, when unlocking, it is also necessary to open the secondary lock 9 first before pressing the pressure block 4 to unlock, which increases the safety of the connector when unlocking.
[0082] Beneficial effects of the utility model:
[0083] By adding a secondary locking structure to the plug 1 and the socket 8, the problem of the snap-on connector not being properly inserted can be effectively solved, avoiding the potential safety hazard of electric shock caused by the high-voltage connector being loose.
[0084] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0085] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0086] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0087] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A connector with a secondary lock, Features: The utility model comprises a plug (1), a socket (8) and a locking structure, wherein the plug (1) is provided with an insertion cavity matched with the socket (8), the plug (1) is provided with a first placement groove (2), the locking structure comprises a buckle (3), a pressure block (4) and a secondary locking buckle (9), the middle part of the buckle (3) is rotatably connected in the first placement groove (2), a pressure block (4) is slidably sleeved on one end of the buckle (3), the pressure block (4) is matched and clamped with the first placement groove (2), so as to lock the position of the buckle (3), the other end of the buckle (3) is provided with a clamping groove, the socket (8) is provided with a clamping block (12) clamped with the clamping groove, one end of the secondary locking buckle (9) is rotatably connected to the socket (8), and the other end of the secondary locking buckle (9) is clamped with both sides of one end of the buckle (3) through the locking structure.
2. A connector with a secondary lock according to claim 1, Features: The pressing block (4) is of a hollow inverted U-shaped structure, and the two outer sides of the bottom thereof are penetrated by horizontal guide grooves (41), the two sides of one end of the inner wall of the first placement groove (2) are provided with guide blocks (6) that are slidably matched with the guide groove (41), and the two sides of the other end of the inner wall are provided with L-shaped limiting parts (7), and the relative outer sides of the pressing block (4) are provided with limiting blocks (42) that are engaged with the corresponding limiting parts (7), and the limiting blocks (42) extend out of the guide groove (41) along the direction from the inside to the outside of the pressing block (4).
3. A connector with a secondary lock according to claim 1, Features: The locking structure comprises a locking protrusion (11) and a limiting step (13); support ears extending vertically downward are symmetrically mounted on both sides of the other end of the secondary lock buckle (9); the inner sides of the two supporting ears are mounted with the locking protrusion (11); and the limiting steps (13) engaging with the locking protrusion (11) are arranged on both sides of the outer side of the buckle (3).
4. A connector with a secondary lock according to claim 1, Features: The locking structure also includes a spring (5), a stopper is provided on one end of the pressure block (4), and two ends of the spring (5) respectively abut against one end of the buckle (3) and the stopper.
5. A connector with a secondary lock according to claim 4, Features: A U-shaped notch for abutting against the spring (5) is provided on one end of the buckle (3).
6. A connector with a secondary lock according to claim 1, Features: The socket (8) is provided with a second placement groove, the clamping block (12) is arranged in the second placement groove, and the outer side of the second placement groove is rotatably connected to the secondary lock buckle (9).
7. A connector with a secondary lock according to claim 6, Features: A guide frame (10) is also provided at one end of the second placement groove close to the plug (1).
8. A connector with a secondary lock according to any one of claims 1 to 7, Features: The buckle (3) is rotatably connected to the first placement groove (2) via a pin shaft, a torsion spring is installed on the pin shaft, and the torsion spring is located between the bottom of the buckle (3) and the first placement groove (2).
9. A connector with a secondary lock according to any one of claims 1 to 7, Features: The pressing block (4) is provided with a guide arrow for indicating the moving direction.
10. A connector with a secondary lock according to any one of claims 1 to 7, Features: The secondary lock buckle (9) is made of stainless steel.