Flame-retardant shell structure of wire harness connector

Abstract

The utility model provides a flame-retardant shell structure of a wire harness connector, which belongs to the technical field of wire harness connectors, aims to solve the problem that the flame-retardant performance of a shell of the wire harness connector is unstable, and comprises a plug, a socket is plugged outside the plug, side clamping plates are mounted on the left side and the right side in the plug respectively, and top clamping plates are mounted on the upper side and the lower side in the plug respectively; two flame-retardant parts are clamped outside the socket, and the outer surfaces of the socket and the plug are coated with flame-retardant layers; and a flame-retardant plate is inserted into the flame-retardant part and penetrates through the interior of the socket. When a wire harness joint burns, the thermal shrinkage rod is heated and shortened, the four flame-retardant plates are pulled to move towards the middle, so that the interior of the shell is blocked, the flame-retardant effect is achieved, when the flame-retardant plates move towards the middle, the middle sections are straightened and smoothly enter the inner side of the flame-retardant part, and it is ensured that the flame-retardant plates can be closed and blocked.

Description

Technical Field

[0001] This utility model belongs to the field of wire harness connector technology, and more specifically, it relates to a flame-retardant housing structure for a wire harness connector. Background Technology

[0002] Wire harness connectors are key components for connecting different wires and cables. With the widespread use of electronic devices and the increasing complexity of electrical systems, the performance requirements for wire harness connectors are constantly rising. Especially in special application environments, such as high-temperature, flammable, or explosive locations, the safety and reliability of wire harness connectors are of paramount importance.

[0003] When electronic devices or electrical systems malfunction, such as short circuits or overloads, it can lead to localized temperature increases and even fires. Traditional wire harness connector housings are typically manufactured using injection molding processes, and flame-retardant performance is improved by adding flame retardants to the material, employing multi-layer composite structures, or coating the surface with flame-retardant coatings. However, these solutions also have some problems in practical applications, such as unstable flame-retardant performance and inconvenience in loosening the housing after connection. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a flame-retardant housing structure for wire harness connectors, so as to achieve stable flame-retardant performance and convenient loosening after the housing is connected.

[0005] This utility model provides a flame-retardant housing structure for a wire harness connector, achieved through the following specific technical means:

[0006] A flame-retardant housing structure for a wire harness connector includes: a plug; a socket is inserted into the outside of the plug, side clamps are installed on the left and right sides of the inside of the plug, and top clamps are installed on the top and bottom sides of the inside of the plug; two flame-retardant components are snapped into the outside of the socket, and the outer surfaces of the socket and the plug are coated with a flame-retardant coating; a flame-retardant plate is inserted into the inside of the flame-retardant components, and the flame-retardant plate penetrates the inside of the socket.

[0007] Furthermore, there are two top clamps, and a connecting sleeve is connected to the opposite side of the two top clamps. A spring is installed inside the connecting sleeve, and the end of the connecting sleeve is connected to the inner wall of the socket.

[0008] Furthermore, pressure plates are respectively installed on the upper and lower sides of the socket, and plug rods are fixedly connected to the opposite sides of the pressure plates. The plug rods are inserted into the plug holes inside the outer clip. When the outer clip is snapped into the inside of the socket, the outer clip will spring outward after being squeezed due to the elasticity of its own material, thus being stably inserted into the inside of the socket.

[0009] Furthermore, the flame-retardant component is externally fixedly connected to a support frame, and the inner end of the flame-retardant plate is provided with a heat-shrink rod to fix the four flame-retardant plates together. The middle section of the flame-retardant plate is a flexible plate structure and is wrapped around the outside of the support frame.

[0010] Furthermore, the side clamp is a right-angled structural plate, and a spring sleeve is connected to the outer side of the side clamp. A spring is installed inside the spring sleeve, and the outer end of the spring sleeve is fixedly connected to the inner wall of the socket.

[0011] Furthermore, the front end face of the plug is integrally provided with a baffle, the inside of the plug is fixedly provided with an inner partition, and the upper and lower sides of the plug are respectively connected with an outer locking block. The outer locking block is a wedge-shaped structure block, and the outer end face of the outer locking block is provided with a socket.

[0012] This utility model has at least the following beneficial effects:

[0013] In this invention, when a fire occurs at the wire harness connection point during use, the heat shrink rod shortens due to heat, pulling the four flame-retardant plates towards the center, thereby blocking the interior of the outer shell and achieving a flame-retardant effect. When the flame-retardant plates move towards the center, the middle section is straightened and smoothly enters the inside of the flame-retardant component, ensuring that the flame-retardant plates can seal and block the fire.

[0014] In addition, when the outer clip is inserted into the inside of the socket, the outer clip will spring outward after being squeezed due to the elasticity of its own material, thus stably inserting into the inside of the socket. When it is necessary to loosen the plug from the socket, press the pressure plate in the middle to insert the plug into the socket on the outer clip until the outer clip is pressed inward until it is flush with the outer surface of the socket. Then you can push the plug to move until the outer clip can be smoothly removed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection between the plug and socket of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the plug of this utility model.

[0017] Figure 3 This is a schematic diagram of the side clamp of this utility model.

[0018] Figure 4 This is a structural schematic diagram of the socket of this utility model.

[0019] Figure 5 This is a structural schematic diagram of the flame-retardant component of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Plug; 101. Sheath; 102. Inner partition; 103. Outer retaining block;

[0022] 2. Socket; 201. Pressure plate; 2011. Insert rod;

[0023] 3. Side clamps; 301. Spring sleeves;

[0024] 4. Top clamp plate; 401. Connecting sleeve;

[0025] 5. Flame-retardant components; 501. Flame-retardant sheet; 5011. Heat shrink bar; 502. Support frame. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0027] Example:

[0028] As attached Figure 1 To be continued Figure 5 As shown:

[0029] This utility model provides a flame-retardant housing structure for a wire harness connector, including a plug 1; a socket 2 is inserted into the outside of the plug 1, side clamps 3 are installed on the left and right sides of the inside of the plug 1, and top clamps 4 are installed on the top and bottom sides of the inside of the plug 1; two flame-retardant components 5 are snapped into the outside of the socket 2, and the outer surfaces of the socket 2 and the plug 1 are coated with a flame-retardant coating; a flame-retardant plate 501 is inserted into the inside of the flame-retardant component 5, and the flame-retardant plate 501 penetrates the inside of the socket 2.

[0030] As attached Figure 2 and attached Figure 3 As shown, the side clamp 3 is a right-angled structure plate, and a spring sleeve 301 is connected to the outer side of the side clamp 3. A spring is installed inside the spring sleeve 301, and the outer end of the spring sleeve 301 is fixedly connected to the inner wall of the socket 2. After the connected wire harness is passed through the plug 1, the spring inside the spring sleeve 301 can push the side clamp 3 to move towards the middle, thereby cooperating with the inner partition 102 to clamp and fix the wire harness, improving the stability of the wire harness.

[0031] As attached Figure 1 Appendix Figure 2 and attached Figure 3 As shown, a baffle 101 is integrally provided on the front end face of the plug 1, and an inner partition 102 is fixedly provided inside the plug 1. An outer locking block 103 is connected to the upper and lower sides of the plug 1 respectively. The outer locking block 103 is a wedge-shaped structure block, and an insertion hole is opened on the outer end face of the outer locking block 103. After the plug 1 is inserted into the socket 2, it is locked onto the socket 2 by the outer locking block 103, which can realize the tight connection between the plug 1 and the socket 2 in the front and rear directions, thereby ensuring the stable connection of the wire harness.

[0032] As attached Figure 5As shown, the flame-retardant component 5 is externally fixedly connected to a support frame 502. The inner end of the flame-retardant plate 501 is provided with a heat-shrink rod 5011 to fix the four flame-retardant plates 501 together. The middle section of the flame-retardant plate 501 is a soft plate structure and is wrapped around the outside of the support frame 502. The heat-shrink rod 5011 does not affect the passage of the wire harness, but at the same time can play a role in partitioning. When the connection of the wire harness is burning, the heat-shrink rod 5011 is heated and shortened, pulling the four flame-retardant plates 501 to move towards the middle, thereby blocking the inside of the outer shell.

[0033] As attached Figure 3 As shown, pressure plates 201 are installed on the upper and lower sides of the socket 2, and a plug rod 2011 is fixedly connected to the opposite side of the pressure plate 201. The plug rod 2011 is inserted into the socket hole inside the outer locking block 103. When the outer locking block 103 is locked into the inside of the socket 2, the outer locking block 103 will spring outward after being squeezed due to the elasticity of its own material, thus being stably inserted into the inside of the socket 2. When it is necessary to loosen the plug 1 from the socket 2, press the pressure plate 201 in the middle to make the plug rod 2011 insert into the socket hole on the outer locking block 103. Press the outer locking block 103 inward to move it until it is flush with the outer surface of the socket 2, and then push the plug 1 to move until the outer locking block 103 can be smoothly removed.

[0034] As attached Figure 3 As shown, there are two top clamps 4. The opposite sides of the two top clamps 4 are connected to connecting sleeves 401. A spring is installed inside the connecting sleeve 401. The end of the connecting sleeve 401 is connected to the inner wall of the socket 2. After the wire harness is passed through the plug 1, the spring inside the connecting sleeve 401 can push the top clamp 4 to move towards the middle, thereby cooperating with the inner partition 102 to clamp and fix the wire harness, improving the stability of the wire harness.

[0035] The specific usage and function of this embodiment are as follows:

[0036] In this utility model, the spring inside the spring sleeve 301 can push the side clamping plate 3 to move towards the middle, thereby cooperating with the inner partition plate 102 to clamp and fix the wire harness. The spring inside the connecting sleeve 401 can push the top clamping plate 4 to move towards the middle, thereby cooperating with the inner partition plate 102 to clamp and fix the wire harness. The outer clamping block 103 will spring outward after being squeezed due to the elasticity of its own material, thereby stably inserting into the socket 2.

[0037] When a fire occurs at the wiring harness connection, the heat shrink rod 5011 shortens due to heat, pulling the four flame-retardant plates 501 towards the center, thereby blocking the interior of the outer casing and achieving a flame-retardant effect.

Claims

1. A flame-retardant housing structure for a wire harness connector, comprising a plug (1); characterized in that, The plug (1) is connected to a socket (2) on the outside. Side clamps (3) are installed on the left and right sides of the inside of the plug (1). Top clamps (4) are installed on the top and bottom sides of the inside of the plug (1). Two flame-retardant parts (5) are snapped onto the outside of the socket (2). The outer surfaces of the socket (2) and the plug (1) are coated with a flame-retardant coating. A flame-retardant plate (501) is inserted into the inside of the flame-retardant part (5). The flame-retardant plate (501) penetrates the inside of the socket (2).

2. The flame-retardant housing structure for a wire harness connector according to claim 1, characterized in that, The front end face of the plug (1) is integrally provided with a baffle (101), the inside of the plug (1) is fixedly provided with an inner partition (102), and the upper and lower sides of the plug (1) are respectively connected with an outer locking block (103). The outer locking block (103) is a wedge-shaped structure block, and the outer end face of the outer locking block (103) is provided with a socket.

3. The flame-retardant housing structure for a wire harness connector according to claim 1, characterized in that, The socket (2) has pressure plates (201) installed on its upper and lower sides respectively. The opposite side of the pressure plates (201) is fixedly connected to the plug rod (2011), which is inserted into the socket hole inside the outer card block (103).

4. The flame-retardant housing structure for a wire harness connector according to claim 3, characterized in that, The side clamp (3) is a right-angle structure plate, and a spring sleeve (301) is connected to the outer side of the side clamp (3). A spring is installed inside the spring sleeve (301), and the outer end of the spring sleeve (301) is fixedly connected to the inner wall of the socket (2).

5. The flame-retardant housing structure for a wire harness connector according to claim 3, characterized in that, Two top clamps (4) are provided. A connecting sleeve (401) is connected to the opposite side of the two top clamps (4). A spring is installed inside the connecting sleeve (401). The end of the connecting sleeve (401) is connected to the inner wall of the socket (2).

6. The flame-retardant housing structure for a wire harness connector according to claim 5, characterized in that, The flame-retardant component (5) is externally fixedly connected to a support frame (502), and the inner end of the flame-retardant plate (501) is provided with a heat shrink rod (5011) to fix the four flame-retardant plates (501) together. The middle section of the flame-retardant plate (501) is a soft plate structure and is wrapped around the outside of the support frame (502).

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