Connector secondary lock and mounting structure

Abstract

The utility model relates to the field of connectors, in particular to a connector secondary lock and a mounting structure, the connector secondary lock comprises a male head shell and a secondary locking block, the male head shell is provided with a clamping strip, the clamping strip is elastic, and the top of the clamping strip is provided with a guide inclined surface; the bottom of the clamping strip is provided with a passive inclined plane, the secondary locking block is in sliding fit with the male head shell and is located at the bottom of the clamping strip, the top of the secondary locking block is provided with an active inclined plane, and when the active inclined plane is in close fit with the passive inclined plane, the clamping strip moves in the direction away from the male head shell. According to the invention, the connection stability between the male connector and the female connector can be ensured for a long time.

Description

Technical Field

[0001] The present application relates to the field of connectors, and in particular to a connector secondary lock and mounting structure. Background Art

[0002] A connector is a connection device used for power transmission or data transmission between electronic devices. It is usually divided into male connectors and female connectors. When power transmission or data transmission is performed, the plug part of the male connector needs to be inserted into the plug interface of the female connector to achieve connection.

[0003] Reference Figure 1 and Figure 2 In the prior art, the male connector is provided with a snap-fit strip 11, the top of which is provided with a guide slope 111, and a male snap-fit groove 112 is formed at the top of the snap-fit strip 11. When connecting the male connector to the female connector, it is necessary to insert the male connector into the female snap-fit groove of the female connector through the guide slope 111, and make the inner wall of the male snap-fit groove 112 snap-fit with the female snap-fit groove, so that the male connector is stably connected to the female connector.

[0004] With respect to the above-mentioned related technologies, after the male connector and the female connector are plugged in multiple times, the connection strip and the female plug-in slot are prone to become loose due to wear, making the connection between the male connector and the female connector unstable. Summary of the Invention

[0005] In order to ensure the connection stability between the male connector and the female connector for a long time, the present application provides a connector secondary lock.

[0006] The present application provides a connector secondary lock that adopts the following technical solution:

[0007] A secondary lock for a connector includes a male housing and a secondary locking block, wherein the male housing is provided with a snap-fit strip, the snap-fit strip is elastic, and a guide slope is provided on the top of the snap-fit strip;

[0008] A passive inclined surface is provided at the bottom of the snap-fit strip, the secondary locking block is slidably fitted in the male head shell and is located at the bottom of the snap-fit strip, and an active inclined surface is provided at the top of the secondary locking block. When the active inclined surface is tightly fitted in the passive inclined surface, the snap-fit strip moves in a direction away from the male head shell.

[0009] By adopting the above technical solution, after the snap-in strip is snapped into place with the female snap-in slot of the female connector, the active inclined surface of the secondary locking block acts on the passive inclined surface of the snap-in strip, so that the snap-in strip is tightly fitted against the inner wall of the female snap-in slot, thereby ensuring the long-term connection stability between the male connector and the female connector.

[0010] Optionally, the male head shell is provided with a card block slot, the secondary locking block is provided with a sliding protrusion, the sliding protrusion is elastic, the sliding protrusion is provided with a card engaging inclined surface, and the sliding protrusion is inserted and slidably fitted in the card block slot through the card engaging inclined surface.

[0011] By adopting the above technical solution, after the sliding protrusion is inserted into the block slide groove through the engaging inclined surface, it slides and cooperates with the block slide groove, so that the secondary locking block can slide stably on the male head shell.

[0012] Optionally, the male head shell is provided with a plurality of locking grooves, and the plurality of locking grooves are distributed along the sliding direction of the secondary locking block. The secondary locking block is provided with a locking protrusion, and the locking protrusion is elastic and snap-fitted into the locking groove.

[0013] By adopting the above technical solution, the locking protrusion is snap-fitted into the locking groove, so that the secondary locking block can maintain its own position stability for a long time through the friction and snap-fit resistance between the secondary locking block and the male shell, which is beneficial to ensure the long-term connection stability between the male connector and the female connector.

[0014] Optionally, the secondary locking block is provided with a pulling protrusion, and the pulling protrusion is located at the top of the secondary locking block.

[0015] By adopting the above technical solution, it is convenient for the user to move the secondary locking block away from the clamping strip by pulling the protrusion.

[0016] Optionally, the secondary locking block is provided with a pushing inclined surface, and the pushing inclined surface and the active inclined surface are respectively located at two ends of the secondary locking block and are arranged away from each other.

[0017] By adopting the above technical solution, the user can easily push the protrusion to move the secondary locking block close to the clamping strip.

[0018] Optionally, the male housing is provided with a limiting protrusion, and the limiting protrusion is located at the bottom of the clamping strip.

[0019] The adoption of the above technical solution is helpful to reduce the excessive slippage of the secondary locking block, which may cause the clamping strip to deform excessively and break.

[0020] Optionally, the connector secondary lock further comprises a plug-in portion, a plug-in sleeve and a connector tail shell, wherein the plug-in portion is mounted on the plug-in sleeve, and the plug-in sleeve is plugged into the shell cavity;

[0021] The plug-in portion is provided with a first bayonet, the male shell is provided with a second bayonet, and the plug sleeve is provided with a third bayonet. The first bayonet, the second bayonet and the third bayonet are interconnected to form a tail shell bayonet. The connector tail shell is provided with an elastic protrusion, and the protrusion of the connector tail shell is snap-fitted with the tail shell bayonet.

[0022] By adopting the above technical solution, the plug-in part, the plug-in sleeve and the male shell are combined with each other through the connector tail shell, which is convenient for production assembly and maintenance and disassembly.

[0023] Optionally, the male connector housing is provided with a pressing groove, and the pressing groove is located on a side surface of the snap-fit strip.

[0024] By adopting the above technical solution, the pressing groove provides space for the operator's fingernails, thereby making it easier for the operator to press the connecting strip.

[0025] This application also provides a connector installation structure, which adopts the following technical solution:

[0026] A connector installation structure includes, in addition to the above-mentioned connector secondary lock, a female head shell, wherein the female head shell is provided with a female head snap-fitting groove, and the snap-fitting strip is snap-fitted into the female head snap-fitting groove.

[0027] By adopting the above technical solution, the snap-fit strip is snap-fitted into the female snap-fit groove through the secondary locking block, thereby ensuring the connection stability between the male connector and the female connector for a long time.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. After the snap-fit strip is snapped into the female snap-fit slot of the female connector, the active bevel of the secondary locking block acts on the passive bevel of the snap-fit strip, causing the snap-fit strip to fit tightly against the inner wall of the female snap-fit slot, thereby ensuring long-term connection stability between the male and female connectors.

[0030] 2. The locking protrusion snaps into place with the locking groove, allowing the secondary locking block to maintain its position for a long time through friction and snap-in resistance with the male housing, thereby ensuring the long-term connection stability between the male and female connectors.

[0031] 3. The plug part, plug sleeve and male shell are combined with each other through the connector tail shell, which is convenient for production assembly and maintenance and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is the first overall schematic diagram of the male connector in the prior art of this application.

[0033] Figure 2 This is the second overall schematic diagram of the male connector in the prior art of this application.

[0034] Figure 3 This is the first overall schematic diagram of the overall structure of Example 1 of the present application.

[0035] Figure 4 This is the second overall schematic diagram of the overall structure of Example 1 of the present application.

[0036] Figure 5 It is an exploded schematic diagram of the overall structure of Example 1 of the present application.

[0037] Figure 6 It is a cross-sectional schematic diagram of the male plug housing of Example 1 of the present application.

[0038] Figure 7 This is an overall schematic diagram of the secondary locking block in Example 1 of the present application.

[0039] Figure 8 This is a schematic diagram of the block slide groove of Example 1 of the present application.

[0040] Figure 9 This is a schematic diagram of the locking groove of Example 1 of the present application.

[0041] Figure 10 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0042] Figure 11 This is the first overall schematic diagram of the female connector housing of Example 2 of the present application.

[0043] Figure 12 This is the second overall schematic diagram of the female connector housing of Example 2 of the present application.

[0044] Figure 13 This is a schematic diagram of the connection between the male housing and the female housing in Example 2 of the present application.

[0045] Figure 14 This is the first overall schematic diagram of the overall structure of Example 3 of the present application.

[0046] Explanation of the accompanying drawings: 1. Male shell; 101. Card block slide; 102. Locking slot; 103. Second card slot; 104. Pressing slot; 11. Card strip; 111. Guide slope; 112. Male card slot; 113. Passive slope; 12. Limiting protrusion; 2. Secondary locking block; 201. Active slope; 21. Pull protrusion; 22. Push slope; 23. Sliding protrusion; 231. Card slot; 24. Locking protrusion; 3. Connecting part; 301. First card slot; 4. Connecting sleeve; 401. Third card slot; 5. Connector tail shell; 6. Female shell; 601. Female card slot. DETAILED DESCRIPTION

[0047] The following is combined with Figure 3-14 This application is described in further detail.

[0048] Example 1:

[0049] Example 1 of the present application discloses a connector secondary lock. Figures 3 to 5 The connector secondary lock includes a male head shell 1 and a secondary locking block 2.

[0050] A snap-on strip 11 is provided at the top of the male connector housing 1, one end of which is integrally connected to the male connector housing 1. The snap-on strip 11 is elastic, and in Example 1 of the present application, both the snap-on strip 11 and the male connector housing 1 are made of plastic. A guide ramp 111 and a male connector snap-on slot 112 are provided at the top of the snap-on strip 11. The guide ramp 111 is located near the end of the snap-on strip 11 where it connects to the male connector housing 1, and the male connector snap-on slot 112 is located near the middle of the snap-on strip 11.

[0051] Reference Figure 6 and Figure 7 , a passive bevel 113 is provided at the bottom of the snap-in strip 11. The secondary locking block 2 is located at the bottom of the passive bevel 113, and an active bevel 201 is provided at the top of the secondary locking block 2. The active bevel 201 is arranged near one end of the secondary locking block 2. When the active bevel 201 is tightly fitted with the passive bevel 113, the snap-in strip 11 is tilted in the direction away from the male housing 1, so that the inner wall of the male snap-in groove 112 is tightly fitted with the female connector, thereby achieving secondary locking of the connector. In addition, the secondary locking block 2 is provided with a pulling protrusion 21 and a pushing bevel 22. The pulling protrusion is located at the top of the secondary locking block 2, and the pushing bevel 22 is located at the other end of the secondary locking block 2. The active bevel 201 and the pushing bevel 22 are arranged far away from each other, so that the secondary locking block 2 can be pulled and pushed by the pulling protrusion 21 and the pushing bevel 22.

[0052] Reference Figure 7 and Figure 8 The male housing 1 is provided with a card block slot 101, and the secondary locking block 2 is integrally connected with two sliding protrusions 23, and the two sliding protrusions 23 are respectively located on both sides of the secondary locking block 2. The sliding protrusion 23 is elastic, and the sliding protrusion 23 is provided with a card engaging inclined surface 231. The sliding protrusion 23 is inserted and slidably fitted into the card block slot 101 through the card engaging inclined surface 231, so that the secondary locking block 2 is easy to assemble and the secondary locking block 2 is stably slidably fitted into the male housing 1. In addition, combined with Figure 6 The top of the male shell 1 is integrally connected with a limiting protrusion 12, and the limiting protrusion 12 is located at the bottom of the clamping strip 11, so that the secondary locking block 2 is not easy to slide excessively, thereby reducing the occurrence of excessive deformation and breakage of the clamping strip 11.

[0053] Reference Figure 7 and Figure 9The male housing 1 is provided with four locking grooves 102, which are divided into two groups. The four locking grooves 102 of the two groups are arranged in a rectangular shape, and the two locking grooves 102 of each group are arranged along the sliding direction of the secondary locking block 2. The secondary locking block 2 is integrally connected to two locking protrusions 24, which are located on both sides of the secondary locking block 2. The locking protrusions 24 are elastic and have a triangular cross-section. The locking protrusions 24 snap fit into the locking grooves 102, so that the secondary locking block 2 can maintain its position stability for a long time through the friction and snap resistance between the secondary locking block 2 and the male housing 1, thereby facilitating the long-term connection stability between the male connector and the female connector.

[0054] Reference Figure 5 The secondary connector lock further includes a plug portion 3, a plug sleeve 4, and a connector shell 5. The plug portion 3 is used to plug and mate with the plug interface of the female connector. In Example 1 of the present application, the type of plug portion 3 is specifically selected as a Type-C interface. The plug portion 3 plugs and mates with the cavity inside the plug sleeve 4, and the plug sleeve 4 plugs and mates with the cavity inside the shell cavity, so that the plug portion 3 is installed on the male shell 1 through the plug sleeve 4.

[0055] The plug portion 3 has a first bayonet 301, the male housing 1 has a second bayonet 103 extending therethrough, and the plug sleeve 4 has a third bayonet 401 extending therethrough. The first bayonet 301, the second bayonet 103, and the third bayonet 401 are interconnected to form a rear housing bayonet (not shown). In the first embodiment of the present application, the rear housing 5 of the connector is made of plastic and is integrally connected to the rear housing 5 with a resilient protrusion (not shown). The protrusion of the rear housing 5 engages with the rear housing bayonet, thereby assembling the plug portion 3, the plug sleeve 4, and the male housing 1 together through the rear housing 5, thereby facilitating production assembly and maintenance disassembly.

[0056] The implementation principle of a secondary lock of a connector in embodiment 1 of the present application is as follows: after the snap-fit strip 11 is snap-fitted into the female snap-fitting groove 601 of the female connector, the active slope 201 of the secondary locking block 2 is pushed by pushing the slope 22, so that the sliding protrusion 23 slides along the snap-fitting groove 101 of the block and the locking protrusion 24 is snap-fitted into another adjacent locking groove 102, so that the snap-fit strip 11 is lifted up and pressed tightly against the inner wall of the female snap-fitting groove 601 under the action of the passive slope 113 and the active slope 201, thereby ensuring the connection stability between the male connector and the female connector for a long time.

[0057] Example 2:

[0058] Embodiment 2 of the present application also provides a connector installation structure, referring to Figure 10 In addition to the connector secondary lock of embodiment 1, it also includes a female head shell 6.

[0059] Reference Figure 11 and Figure 12 One end of the female housing 6 is provided with a plug interface, which is used to plug into the male housing 1. Figure 13 A female head snap-in groove 601 is further provided on the top of the female head housing 6 , and the snap-in strip 11 is snap-fitted into the female head snap-in groove 601 through the inner wall of the male head snap-in groove 112 .

[0060] The implementation principle of a secondary lock of a connector in embodiment 2 of the present application is: the snap-fit strip 11 is snap-fitted into the female snap-fit groove 601 through the secondary locking block 2, thereby ensuring the connection stability between the male connector and the female connector for a long time.

[0061] Example 3:

[0062] Example 3 of the present application discloses a secondary lock for a connector. In addition to all the technical features of Example 1, it also includes the following technical features:

[0063] Reference Figure 14 The male housing 1 is provided with two pressing grooves 104, which are respectively located on two sides of the clamping strip 11. The pressing grooves 104 extend along the height direction of the male housing 1, and the corners of the pressing grooves 104 are chamfered.

[0064] The implementation principle of a secondary lock of a connector in Example 3 of the present application is as follows: the two pressing grooves 104 provide space for the operator's fingernails, making it difficult for the operator to press the snap-on strip 11 due to the excessive length of the fingernails.

[0065] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A connector secondary lock, characterized by: It comprises a male housing (1) and a secondary locking block (2), wherein the male housing (1) is provided with a snap-fit strip (11), the snap-fit strip (11) is elastic, and a guide slope (111) is provided at the top of the snap-fit strip (11); The bottom of the snap-in strip (11) is provided with a passive inclined surface (113); the secondary locking block (2) is slidably engaged with the male housing (1) and is located at the bottom of the snap-in strip (11); the top of the secondary locking block (2) is provided with an active inclined surface (201); when the active inclined surface (201) is tightly engaged with the passive inclined surface (113), the snap-in strip (11) moves in a direction away from the male housing (1).

2. A connector secondary lock according to claim 1, characterized in that: The male housing (1) is provided with a card block slot (101), the secondary locking block (2) is provided with a sliding protrusion (23), the sliding protrusion (23) is elastic, the sliding protrusion (23) is provided with a card connection bevel (231), and the sliding protrusion (23) is inserted and slidably matched with the card block slot (101) through the card connection bevel (231).

3. A connector secondary lock according to claim 2, characterized in that: The male housing (1) is provided with a plurality of locking grooves (102), and the plurality of locking grooves (102) are distributed along the sliding direction of the secondary locking block (2). The secondary locking block (2) is provided with a locking protrusion (24), and the locking protrusion (24) is elastic and snap-fitted into the locking groove (102).

4. The connector secondary lock according to claim 1, characterized in that: The secondary locking block (2) is provided with a pulling protrusion (21), and the pulling protrusion (21) is located at the top of the secondary locking block (2).

5. The connector secondary lock according to claim 4, characterized in that: The secondary locking block (2) is provided with a pushing inclined surface (22), and the pushing inclined surface (22) and the active inclined surface (201) are respectively located at two ends of the secondary locking block (2) and are arranged away from each other.

6. The connector secondary lock according to claim 1, characterized in that: The male housing (1) is provided with a limiting protrusion (12), and the limiting protrusion (12) is located at the bottom of the clamping strip (11).

7. The connector secondary lock according to claim 1, characterized in that: The connector secondary lock further comprises a plug-in portion (3), a plug-in sleeve (4) and a connector tail shell (5), wherein the plug-in portion (3) is mounted on the plug-in sleeve (4), and the plug-in sleeve (4) is plugged into and fitted into the shell cavity; The plug-in portion (3) is provided with a first bayonet (301), the male shell (1) is provided with a second bayonet (103), and the plug sleeve (4) is provided with a third bayonet (401). The first bayonet (301), the second bayonet (103), and the third bayonet (401) are interconnected to form a tail shell bayonet. The connector tail shell (5) is provided with an elastic protrusion, and the protrusion of the connector tail shell (5) is snap-fitted with the tail shell bayonet.

8. The connector secondary lock according to claim 1, characterized in that: The male housing (1) is provided with a pressing groove (104), and the pressing groove (104) is located on the side of the clamping strip (11).

9. A connector mounting structure, characterized in that: A connector secondary lock comprising any one of claims 1 to 8; The connector installation structure further comprises a female housing (6), the female housing (6) is provided with a female snap-fitting slot (601), and the snap-fitting strip (11) is snap-fitted into the female snap-fitting slot (601).

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