Double-locking connector assembly

Abstract

The utility model provides a double-locking connector assembly which comprises a first connector and a second connector, the outer wall of a second connecting shell is provided with a second clamping groove, a lock catch cover is provided with a first sliding groove between the inner side walls, the first sliding groove extends along the insertion direction, and the first sliding groove is provided with a first limiting block; the connector assembly further comprises a sliding locking block, the sliding locking block comprises an elastic arm, a first sliding block and a second clamping block, the first sliding block is arranged on the elastic arm, a second limiting block is arranged at the free end of the elastic arm, the first sliding block moves in the first sliding groove in the inserting direction, and primary locking of main locking force is provided through the lock catch cover. And then the sliding locking block is pushed in again, and the elastic deformation of the first sliding block is utilized, so that the second limiting block is clamped with the first limiting block, the second clamping block is clamped with the second clamping groove, the locking position of the sliding locking block is fixed, the second connector is locked again, and double locking of the connector is realized.

Description

Technical Field

[0001] The utility model relates to the field of connectors, in particular to a connector assembly with double locking. Background Art

[0002] An electrical connector is an indispensable component in an electronic and electrical device. For an electrical connector, it is necessary to have stable contact, reliable and high-speed signal or current transmission. A connector assembly usually includes a plug connector and a socket connector that are paired with each other. When the traditional plug connector and socket connector are plugged in, they are generally connected and fixed by the close fit of a conductive elastic piece or a housing. However, the locking force of this type is insufficient. Especially in a harsh application environment, it is easy to cause poor electrical contact. Especially under high voltage, a large locking force is required to prevent the plug connector and the socket connector from loosening and causing poor electrical contact.

[0003] Therefore, existing connectors generally come with a locking structure, which is connected between two connectors through a locking structure such as a buckle or a lock, thereby improving the connection stability between the two connectors. However, the locking structure is generally a single locking, and the locking structure is not locked and fixed again, so the locking stability cannot be further improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a connector assembly with double locking.

[0005] To achieve the object of the present utility model, the present utility model provides a double-locked connector assembly, which includes a first connector and a second connector. The first connector includes a latch cover, a first connection housing, and first connection terminals. The first connection terminals are arranged in the first connection housing along the insertion direction, and the first connection housing extends along the insertion direction. The second connector includes a second connection housing and second connection terminals. The second connection terminals are arranged in the second connection housing along the insertion direction. The first connection housing and the second connection housing are docked, and the first connection terminals and the second connection terminals are electrically connected. On the outer wall of the first connection housing, first hinge portions are respectively arranged on two opposite sides in the first radial direction. The latch cover is arc-shaped and is provided with a through groove extending along the insertion direction. The inner side walls of the latch cover on two opposite sides of the through groove are hinged to the first hinge portions. On the outer wall of the second connection housing, first latch blocks are respectively arranged on two opposite sides in the first radial direction, and first card slots are arranged on the inner side wall of each side. The latch cover can rotate relative to the first connection housing, and the first card slots can be detachably engaged with the first latch blocks. On the outer wall of the second connection housing, a second card slot is arranged between the two first latch blocks, and the second card slot extends along the insertion direction. A first sliding groove is arranged between the inner side walls of the latch cover, and the first sliding groove extends along the insertion direction. A first limiting block is arranged in the first sliding groove. The connector assembly further includes a sliding lock block, which includes an elastic arm, a first slider, and a second latch block. The first slider is arranged on the elastic arm, and a second limiting block is arranged at the free end of the elastic arm. The first slider moves along the insertion direction in the first sliding groove. In the locked state, the second limiting block is engaged with the first limiting block, and the second latch block is engaged with the second card slot. In the unlocked state, the second limiting block is separated from the first limiting block, and the second latch block is separated from the second card slot.

[0006] A further solution is that the second latch block is provided with a U-shaped bayonet, and the second card slot is provided with a U-shaped positioning block. In the locked state, the U-shaped positioning block is in clearance fit with the U-shaped bayonet.

[0007] A further solution is that on the outer wall of the second connection housing, an extension block is arranged between the two first latch blocks, and a second card slot is formed between the extension block and the outer wall of the second connection housing.

[0008] A further solution is that a positioning groove is arranged on the other side of the second limiting block opposite to the first slider. In the locked state, the second limiting block is located in the positioning groove.

[0009] A further solution is that a second sliding groove is arranged between the inner side walls of the latch cover, and the second sliding groove extends along the insertion direction. The first sliding groove is communicated with the second sliding groove and is provided with an opening at the end close to the second connector. The sliding lock block includes a baffle and a second slider. The fixed end of the first slider and the fixed end of the second slider are connected to the baffle. The second slider moves along the insertion direction in the second sliding groove. The baffle covers the opening, and the first slider can elastically shift towards the second sliding groove.

[0010] A further solution is that convex positioning steps are respectively arranged on both sides of the second sliding groove in the width direction, convex positioning blocks are respectively arranged on both sides of the second sliding block in the width direction, and the convex positioning blocks are in clearance fit with the convex positioning steps.

[0011] A further solution is that a first clamping portion is arranged at the free end of the second sliding block, and the first clamping portion is in limit fit with a second clamping portion in the second sliding block.

[0012] The beneficial effects of the present utility model are as follows: Firstly, the lock cover is connected to the first connection housing and the second connection housing. Specifically, the first card slot is detachably engaged with the first card block to achieve the primary locking that provides the main locking force. Subsequently, by pushing the sliding lock block again and utilizing the elastic deformation of the first sliding block, the second limiting block is engaged with the first limiting block, and the second card block is engaged with the second card slot. This not only fixes the locking position of the sliding lock block but also locks the second connector again to achieve the double locking of the connector. Moreover, through the clearance fit between the U-shaped positioning block and the U-shaped bayonet, and the arrangement of the extension blocks, the locking stability is further improved. And through the cooperation between the second sliding block and the second sliding groove, and the setting of the convex structure, the movement of the sliding lock block is smoother. Also, through the limit fit between the first clamping portion and the second clamping portion in the second sliding block, the detachment of the sliding lock block can be avoided. Description of the Drawings

[0013] Figure 1 It is a structural diagram of an embodiment of the connector assembly of the present invention.

[0014] Figure 2 It is an exploded view of an embodiment of the connector assembly of the present invention.

[0015] Figure 3 It is a structural diagram of the first connector in an embodiment of the connector assembly of the present invention.

[0016] Figure 4 It is an exploded view of the first connector in an embodiment of the connector assembly of the present invention.

[0017] Figure 5 It is a cross-sectional view of an embodiment of the connector assembly of the present invention during locking.

[0018] Figure 6 It is a cross-sectional view of an embodiment of the connector assembly of the present invention in the locked state.

[0019] Figure 7 It is a cross-sectional view of an embodiment of the connector assembly of the present invention during unlocking.

[0020] Figure 8 It is a cross-sectional view of an embodiment of the connector assembly of the present invention in the unlocked state.

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. Specific embodiments

[0022] Referring to Figures 1 to 8 , the connector assembly includes a first connector 10 and a second connector 40. The first connector 10 includes a latch cover 2, a first connection housing 11, and a first connection terminal 12. The first connection terminal 12 is arranged in the first connection housing 11 along the insertion direction Z. The first connection housing 11 extends along the insertion direction Z. The second connector 40 includes a second connection housing 41 and a second connection terminal. The second connection terminal is arranged in the second connection housing 41 along the insertion direction Z. The first connection housing 11 and the second connection housing 41 are butted, and the first connection terminal 12 and the second connection terminal are electrically connected.

[0023] On the outer wall of the first connection housing 11, first hinge portions 113 are respectively arranged on two radially opposite sides. The first hinge portions 113 are arranged in the form of hinge columns. The latch cover 2 is arranged in an arc shape and is provided with a through slot 201 along the insertion direction Z. On the inner side walls of the latch cover 2 on two opposite sides of the through slot 201, hinge holes are used to hinge with the first hinge portions 113. On the outer wall of the second connection housing 41, first latch blocks 42 are respectively arranged on two radially opposite sides, and first card slots 24 are arranged on the inner side wall of each side. The latch cover 2 can rotate relative to the first connection housing 11, and the first card slots 24 can be detachably engaged with the first latch blocks 42.

[0024] On the outer wall of the second connection housing 41, a second card slot 43 is arranged between the two first latch blocks 42. The second card slot 43 extends along the insertion direction Z. On the outer wall of the second connection housing 41, an extension block 45 is arranged between the two first latch blocks 42. A second card slot 43 is formed between the extension block 45 and the outer wall of the second connection housing 41. A U-shaped positioning block is arranged in the second card slot 43.

[0025] On the inner side walls of the latch cover 2, a first sliding slot 21 is arranged. The first sliding slot 21 extends along the insertion direction Z. The first sliding slot 21 is provided with a first limiting block 22. On the other side of the elastic arm 31 opposite to the second limiting block 311, a positioning slot 221 is arranged. On the inner side walls of the latch cover 2, a second sliding slot 23 is further arranged. The second sliding slot 23 extends along the insertion direction Z. The first sliding slot 21 is communicated with the second sliding slot 23. The first sliding slot 21 is located on the outer side of the second sliding slot 23. The first sliding slot 21 and the second sliding slot 23 are provided with openings at the end close to the second connector 40. On the two sides of the second sliding slot 23 in the width direction X, convex positioning steps are respectively arranged. A second engaging portion 231 is arranged in the second sliding slot 23.

[0026] The connector assembly further includes a sliding lock block 3, which includes an elastic arm 31, a baffle 33, a second slider 32, a first slider 312, and a second locking block 34. The baffle 33 is located at the end in the insertion direction Z. The fixed end of the elastic arm 31 and the fixed end of the second slider 32 are connected to the baffle 33. The second locking block 34 is connected to the baffle 33. The first slider 312 is arranged on the elastic arm 31. The elastic arm 31 is located on the outer side of the second slider 32 along the width direction Y. The first slider 312 is located on the outer side of the elastic arm 31 along the width direction Y. The second locking block 34 is located on the inner side of the second slider 32 along the width direction Y. The second locking block 34 is provided with a U-shaped bayonet 341. The free end of the elastic arm 31 is provided with a second limiting block 311. The second slider 32 is respectively provided with convex positioning blocks on both sides in the width direction X. The free end of the second slider 32 is provided with a first locking portion 321.

[0027] When the sliding lock block 3 is assembled to the lock cover 2, the first slider 312 moves along the insertion direction Z in the first chute 21, and the second slider 32 moves along the insertion direction Z in the second chute 23. The convex positioning block is in clearance fit with the convex positioning step. The first locking portion 321 is in limiting fit with the second locking portion 231 in the second slider 32. When the first connection housing 11 and the second connection housing 41 are butted and in the locked state of the lock cover 2, the first card slot 24 is detachably engaged with the first locking block 42.

[0028] The locking state or unlocking state of the sliding lock block 3 can be switched by operation. Refer to Figure 5 and Figure 6 , by pressing the first slider 312 of the sliding lock block 3, the elastic arm 31 can be elastically offset towards the second chute 23. Then, as the sliding lock block 3 is pushed downward along the insertion direction and the first slider 312 is released, the sliding lock block 3 is in the locked state. The second limiting block 311 is engaged with the first limiting block 22. The second limiting block 311 is located in the positioning slot 221. The second locking block 34 is engaged with the second card slot 43. The U-shaped positioning block is in clearance fit with the U-shaped bayonet, and the baffle 33 covers the open end. By locking the sliding lock block 3, the lock cover 2 is locked, and the connection of the connector is double-locked.

[0029] Refer to Figure 7 and Figure 8 , by pressing the first slider 312 of the sliding lock block 3, the elastic arm 31 can be elastically offset towards the second chute 23. Then, as the sliding lock block 3 is pushed upward along the insertion direction and the first slider 312 is released, the sliding lock block 3 is in the unlocked state. The second limiting block 311 is separated from the first limiting block 22, and the second locking block 34 is separated from the second card slot 43.

[0030] As can be seen from the above, the first connecting housing and the second connecting housing are connected by a latch cover. Specifically, the first card slot is detachably engaged with the first card block to achieve the primary locking that provides the main locking force. Subsequently, by pushing the sliding lock block in again and utilizing the elastic deformation of the first slider, the second limiting block is engaged with the first limiting block, and the second card block is engaged with the second card slot, thereby not only fixing the locking position of the sliding lock block but also locking the second connector again to achieve the double locking of the connector.

Claims

1. A double-locking connector assembly, comprising a first connector and a second connector. The first connector includes a latch cover, a first connection housing, and first connection terminals. The first connection terminals are arranged in the first connection housing along the insertion direction. The first connection housing extends along the insertion direction. The second connector includes a second connection housing and second connection terminals. The second connection terminals are arranged in the second connection housing along the insertion direction. The first connection housing and the second connection housing are docked, and the first connection terminals and the second connection terminals are electrically connected; On the outer wall of the first connection housing, first hinge portions are respectively arranged on two radially opposite sides. The latch cover is arc-shaped and is provided with a through groove extending along the insertion direction. The inner side walls of the latch cover on two opposite sides of the through groove are hinged to the first hinge portions. On the outer wall of the second connection housing, first locking blocks are respectively arranged on two radially opposite sides. On each inner side wall, a first locking groove is provided. The latch cover can rotate relative to the first connection housing, and the first locking groove can be detachably engaged with the first locking block; It is characterized in that: On the outer wall of the second connection housing, a second locking groove is arranged between the two first locking blocks. The second locking groove extends along the insertion direction; On the inner side walls of the latch cover, a first sliding groove is arranged. The first sliding groove extends along the insertion direction. The first sliding groove is provided with a first limiting block; The connector assembly further includes a sliding locking block. The sliding locking block includes an elastic arm, a first slider, and a second locking block. The first slider is arranged on the elastic arm. A second limiting block is arranged at the free end of the elastic arm. The first slider moves along the insertion direction in the first sliding groove; In the locked state, the second limiting block is engaged with the first limiting block, and the second locking block is engaged with the second locking groove; In the unlocked state, the second limiting block is separated from the first limiting block, and the second locking block is separated from the second locking groove.

2. The connector assembly according to claim 1, wherein: The second locking block is provided with a U-shaped bayonet, and the second locking groove is provided with a U-shaped positioning block. In the locked state, the U-shaped positioning block is in clearance fit with the U-shaped bayonet.

3. The connector assembly according to claim 1, wherein: On the outer wall of the second connection housing, an extension block is arranged between the two first locking blocks. The second locking groove is formed between the extension block and the outer wall of the second connection housing.

4. The connector assembly according to claim 1, wherein: On the other side of the elastic arm opposite to the second limiting block, a positioning groove is arranged. In the locked state, the second limiting block is located in the positioning groove.

5. The connector assembly according to any one of claims 1 to 4, wherein: On the inner side walls of the latch cover, a second sliding groove is arranged. The second sliding groove extends along the insertion direction. The first sliding groove is communicated with the second sliding groove and is provided with an opening at the end close to the second connector; The sliding lock block includes a baffle and a second slider. The fixed end of the elastic arm, the fixed end of the second slider are connected to the baffle. The second slider moves along the insertion direction in the second chute. The baffle covers the open end, and the elastic arm can elastically deflect towards the second chute.

6. The connector assembly according to claim 5, wherein: Convex positioning steps are respectively arranged on both sides of the second chute in the width direction. Convex positioning blocks are respectively arranged on both sides of the second slider in the width direction. The convex positioning blocks are in clearance fit with the convex positioning steps.

7. The connector assembly according to claim 6, wherein: A first engaging portion is arranged at the free end of the second slider. The first engaging portion is in limiting fit with a second engaging portion in the second slider.

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