DISPLAYPOR female seat connector

Abstract

The utility model relates to a DISPLAYPOR female seat connector in the technical field of connectors, which comprises a shell, a mounting seat, an upper terminal injection molding piece and a lower terminal injection molding piece, an upper-row terminal structure and a lower-row terminal structure are formed by stamping in an independent process, and the width of the front end contact part of a signal PIN terminal group and the width of the front end contact part of a grounding PIN terminal group are set in a wide-narrow manner or a narrow-wide manner; an upper row of terminals and a lower row of terminals of a product structure are separately punched and formed, and the widths of the terminals can be adjusted according to high-frequency test parameters, so that the high-frequency test is easy to pass, the product performance can meet the requirement of high performance, the effect of higher product quality is achieved, and the connector is suitable for different high-frequency parameters, is designed in a targeted manner, and is convenient to use. The signal transmission quality is improved when the width is set to be the width of the signal PIN and the width of the grounding PIN, the grounding effect is improved when the width is set to be the width of the signal PIN and the width of the grounding PIN, and the flexible transmission effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a DISPLAYPOR female connector. Background Art

[0002] Usually refers to the connector used to receive DisplayPort signals, that is, the socket part of the DisplayPort interface. DisplayPort is a standard interface technology for transmitting digital audio / video content between audio / video sources and display devices. It is widely used in computer monitors, laptops, tablets and other devices that support high-definition video output.

[0003] In the existing technology, the upper and lower rows of terminals for transmitting signals of products circulating on the market are stamped and formed at one time, and the upper and lower rows of terminals after stamping are integrated; the terminal width cannot be adjusted, and the high-frequency test cannot pass. In addition, due to the limitation of the product PIN distance, the terminal width of the product cannot be adjusted, which makes it difficult to adjust the high-frequency test parameters of the product, and makes it impossible to pass the high-frequency test; the product performance cannot meet the requirements of high performance, and when it is used, its structure needs to be further processed and improved, which increases the process and reduces the work efficiency. For this reason, the inventors propose a DISPLAYPOR female connector to solve the above-mentioned technical problems. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] A DISPLAYPOR female connector comprises a housing, a mounting base, an upper terminal injection molded part, and a lower terminal injection molded part. The housing, the mounting base, the upper terminal injection molded part, and the lower terminal injection molded part are detachable structures. An upper terminal structure and a lower terminal structure are respectively installed inside the upper terminal injection molded part and the lower terminal injection molded part. The upper terminal structure and the lower terminal structure are independent structures. The upper terminal structure and the lower terminal structure are both stamped and formed in separate processes. The upper terminal structure and the lower terminal structure both include a signal PIN terminal group and a ground PIN terminal group. The width of the front contact portion of the signal PIN terminal group and the ground PIN terminal group is set to wide and narrow or narrow and wide.

[0006] When the width and narrow setting is set to signal PIN wide and ground PIN narrow:

[0007] It plays a role in improving the quality of signal transmission. A wider signal PIN can provide a larger contact area, thereby reducing contact resistance, improving current carrying capacity, and reducing signal loss. A wider signal PIN can improve the stability of signal transmission, especially in high-frequency signal transmission, and can reduce reflection and distortion;

[0008] To achieve the effect of anti-interference, a narrow ground PIN can reduce the impact on the signal line, especially in the case of high-density wiring. The narrow ground PIN can reduce the coupling between the signal line and reduce noise interference; in a limited space, a narrow ground PIN can save space and leave more room for other components.

[0009] When the narrow width setting is set to narrow for the signal pin and wide for the ground pin:

[0010] Improve grounding effect. Wider ground pins can provide a larger contact area, thereby reducing ground resistance and improving grounding effect, which is very important for electromagnetic compatibility (EMC). Wider ground pins can better absorb and disperse current, reduce electromagnetic interference (EMI), and improve system stability.

[0011] It plays a role in protecting signal lines. The wide ground PIN can act as a shield, reducing the impact of external electromagnetic fields on signal lines and protecting signals from interference. In some application scenarios, the wide ground PIN can improve mechanical strength and reduce connection failures caused by vibration or impact. The narrow signal PIN can allow more signal lines to be arranged in the same area, which is suitable for application scenarios requiring high-density signal transmission;

[0012] The product structure stamps out the upper and lower rows of terminals separately, and the terminal width can be adjusted according to high-frequency test parameters, making it easier to pass high-frequency tests. The product performance can meet high-performance requirements, achieving higher product quality.

[0013] Furthermore, a clamping foot is connected to the surface of the housing, one end of the housing is a connection groove for connecting to an external connector, and a spring clamping plate is provided inside the connection groove for increasing the connection stability, and one end of the spring clamping plate is convex;

[0014] The raised shape of the spring clamp provides a continuous pressure to ensure that the connector can be firmly held in the connection slot after insertion, preventing loosening due to vibration or slight external force. The raised shape of the spring clamp gives the user obvious feedback when inserting or removing the connector, allowing the user to feel that the connection is in place or is being disconnected, thereby improving the certainty of use.

[0015] In addition, the raised spring clip design allows users to apply force more easily during the disassembly process, making it convenient and quick to complete the connection or disconnection operation. In certain application environments that require high reliability, the raised spring clip can ensure a stable connection state even under harsh conditions.

[0016] Furthermore, a spring sheet is provided on the surface of the shell, and one end of the spring sheet is a spring plate, which is convex in shape. The surfaces of both ends of the shell are provided with a slot for increasing the connection stability, and the slot is a concave structure; the slot design can be used to cooperate with other components, such as a cover or a protruding part on other modules. Through the embedded assembly method, a more stable connection is formed between the two components to prevent loosening or falling off, thereby achieving the effect of increasing the connection stability. The concave structure can enhance the local mechanical strength by changing the angle of application of the force of the material to avoid deformation when the shell is subjected to external pressure. When disassembly is required, the slot design can make the installation and disassembly process more convenient and can be completed without the use of tools. At the same time, the slot can reduce the overall volume of the product to a certain extent, making the product more compact; both the spring sheet and the spring plate are used to prevent loosening or falling off, thereby achieving the effect of increasing the connection stability.

[0017] Furthermore, one end of the mounting base is connected to a base plate, and a connecting column for mounting with an external connector positioning point is installed on the surface of the base plate, and the connecting column is a convex structure;

[0018] The raised connection posts provide accurate positioning, ensuring precise docking between the mount and the external connector, avoiding unstable connections or incorrect installation due to position deviation. The raised structure also increases the firmness of the connection, preventing loosening or falling off due to vibration or other external forces, thereby improving the stability of the entire system.

[0019] In addition, the raised connecting column can provide better support when bearing external loads, increase the mechanical strength between the base plate and the external connector, thereby improving the overall durability. At the same time, the design of this structure usually also takes into account the need for easy disassembly, so that the connector can be easily separated when maintenance or replacement is required.

[0020] Furthermore, the upper terminal structure is installed inside the upper terminal injection molded part, the lower terminal structure is installed inside the lower terminal injection molded part, and the lower terminal injection molded part is connected to the upper terminal injection molded part through the terminal installation groove;

[0021] The use of terminal mounting grooves to connect the upper and lower terminal injection molded parts and the lower terminal injection molded part can ensure precise alignment between the upper and lower terminals, improving the reliability and stability of the connection. The injection molded parts themselves have a certain degree of rigidity and strength, and the design of the terminal mounting grooves can help strengthen the bonding force between the upper and lower injection molded parts, thereby enhancing the structural strength of the entire assembly;

[0022] In addition, correct installation and connection can reduce interference and loss during signal transmission, improve electrical performance, and ensure the quality of data transmission. The independent upper and lower terminal structure design ensures that the failure of a single component will not affect the operation of the entire system, facilitating troubleshooting and component replacement.

[0023] When assembly is required, the pre-installed terminal structure can reduce the labor cost of subsequent assembly; the standardized connection method is also conducive to large-scale production and procurement, further reducing costs. The separate design allows operators to flexibly adjust the position and number of upper and lower terminals according to different needs to adapt to different application scenarios, which is conducive to rapid assembly on automated production lines and improves production speed.

[0024] Furthermore, one end of the upper terminal structure and the lower terminal structure are the upper terminal pins and the lower terminal pins respectively, and one end of the upper terminal structure and the lower terminal structure and one end of the upper terminal pins and the lower terminal pins are connected with the upper terminal strip and the lower terminal strip. When the upper terminal structure and the lower terminal structure need to be installed, the upper terminal strip and the lower terminal strip are removed by cutting or punching to facilitate installation.

[0025] Furthermore, a protective block is connected to the surface of the mounting base, and the protective block has an arc-shaped structure. Compared with sharp straight edges, the use of arc-shaped edges can better disperse stress and reduce stress concentration, thereby improving the durability and fatigue resistance of the protective block. The arc-shaped structure can reduce the risk of accidental injury to the user and reduce the possibility of injury. When assembly requires direct manual contact, the arc-shaped protective block can provide a good grip or touch experience, reducing the pressure of the sharp part of the mounting base on the skin.

[0026] The surface of the upper terminal injection molded part is connected with a terminal limiting plate and a terminal clamping block. The terminal limiting plate is installed at both ends of the upper terminal injection molded part, and the terminal clamping blocks are linearly arranged on the surface of the upper terminal injection molded part. The terminal limiting plate and the terminal clamping block increase the connection stability and reduce the probability of the upper terminal injection molded part falling.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. By stamping the upper and lower rows of terminals separately, the terminal width can be adjusted according to the high-frequency test parameters, making it easier to pass the high-frequency test. The product performance can meet the requirements of high performance, achieving higher product quality. It is suitable for different high-frequency parameters and is designed in a targeted manner to achieve the smoothest high-frequency test adjustment, facilitating the passage of current while meeting basic signal performance.

[0029] 2. When the width setting is set to signal PIN wide and ground PIN narrow:

[0030] It plays a role in improving the quality of signal transmission. A wider signal PIN can provide a larger contact area, thereby reducing contact resistance, improving current carrying capacity, and reducing signal loss. A wider signal PIN can improve the stability of signal transmission, especially in high-frequency signal transmission, and can reduce reflection and distortion;

[0031] To achieve the effect of anti-interference, a narrow ground PIN can reduce the impact on signal lines, especially in the case of high-density wiring. The narrow ground PIN can reduce the coupling between the signal line and reduce noise interference. In a limited space, a narrow ground PIN can save space and leave more room for other components.

[0032] 3. When the narrow width setting is set to narrow signal PIN and wide ground PIN:

[0033] Improve grounding effect. Wider ground pins can provide a larger contact area, thereby reducing ground resistance and improving grounding effect, which is very important for electromagnetic compatibility (EMC). Wider ground pins can better absorb and disperse current, reduce electromagnetic interference (EMI), and improve system stability.

[0034] It plays a role in protecting signal lines. The wide ground PIN can act as a shield, reduce the impact of external electromagnetic fields on signal lines, and protect signals from interference. In some application scenarios, the wide ground PIN can improve mechanical strength and reduce connection failures caused by vibration or impact. The narrow signal PIN can allow more signal lines to be arranged in the same area, which is suitable for application scenarios that require high-density signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a three-dimensional diagram of a DISPLAYPOR female connector;

[0036] Figure 2 This is another stereoscopic view of a DISPLAYPOR female connector;

[0037] Figure 3 This is another stereoscopic view of a DISPLAYPOR female connector;

[0038] Figure 4 This is an exploded perspective view of a DISPLAYPOR female connector;

[0039] Figure 5 This is another exploded perspective view of a DISPLAYPOR female connector;

[0040] Figure 6 This is another exploded perspective view of a DISPLAYPOR female connector;

[0041] Figure 7 This is a schematic diagram of the structure of a DISPLAYPOR female connector;

[0042] Figure 8 This is a three-dimensional image of the upper injection molded part of a DISPLAYPOR female connector;

[0043] Figure 9 This is another three-dimensional view of the upper injection molded part of a DISPLAYPOR female connector;

[0044] Figure 10 This is a left view of the upper injection molded part of a DISPLAYPOR female connector;

[0045] Figure 11 This is a bottom view of the upper injection molded part of a DISPLAYPOR female connector;

[0046] Figure 12 This is a top view of the upper injection molded part of a DISPLAYPOR female connector;

[0047] Figure 13 This is a three-dimensional diagram of the upper row of terminals in a DISPLAYPOR female connector.

[0048] Figure 14 This is another three-dimensional view of the upper row of terminals in a DISPLAYPOR female connector;

[0049] Figure 15 This is a left view of the lower injection molded part of a DISPLAYPOR female connector.

[0050] Figure 16 This is a bottom view of the lower injection molded part of a DISPLAYPOR female connector;

[0051] Figure 17 This is a top view of the lower injection molded part of a DISPLAYPOR female connector;

[0052] Figure 18This is a three-dimensional diagram of the lower row of terminals in a DISPLAYPOR female connector.

[0053] Figure 19 This is another three-dimensional view of the lower row of terminals in a DISPLAYPOR female connector;

[0054] Figure 20 This is a three-dimensional diagram of the lower row of terminals in a DISPLAYPOR female connector.

[0055] Figure 21 This is another three-dimensional view of the lower row of terminals in a DISPLAYPOR female connector;

[0056] In the figure: housing 1, mounting base 2, upper terminal injection molded part 3, lower terminal injection molded part 4, upper terminal structure 5, lower terminal structure 6, clamping foot 7, connecting slot 8, spring clamping plate 9, spring sheet 10, spring plate 11, clamping slot 12, bottom plate 13, connecting column 14, terminal mounting slot 15, upper terminal pin 16, lower terminal pin 17, upper terminal strip 18, lower terminal strip 19, protective block 20, terminal limit plate 21 and terminal clamping block 22. DETAILED DESCRIPTION

[0057] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0058] For this example, please refer to Figures 1-21 , a DISPLAYPOR female connector specifically implemented therein includes a housing 1, a mounting base 2, an upper terminal injection molded part 3, and a lower terminal injection molded part 4. The housing 1, the mounting base 2, the upper terminal injection molded part 3, and the lower terminal injection molded part 4 are a detachable structure. The upper terminal injection molded part 3 and the lower terminal injection molded part 4 are respectively installed with an upper terminal structure 5 and a lower terminal structure 6. The upper terminal structure 5 and the lower terminal structure 6 are independent structures. The upper terminal structure 5 and the lower terminal structure 6 are both stamped and formed in a separate process. The upper terminal structure 5 and the lower terminal structure 6 both include a signal PIN terminal group and a ground PIN terminal group. The width of the front contact portion of the signal PIN terminal group and the ground PIN terminal group is a wide-narrow setting or a narrow-wide setting.

[0059] When the width and narrow setting is set to signal PIN wide and ground PIN narrow:

[0060] It plays a role in improving the quality of signal transmission. A wider signal PIN can provide a larger contact area, thereby reducing contact resistance, improving current carrying capacity, and reducing signal loss. A wider signal PIN can improve the stability of signal transmission, especially in high-frequency signal transmission, and can reduce reflection and distortion;

[0061] To achieve the effect of anti-interference, a narrow ground PIN can reduce the impact on the signal line, especially in the case of high-density wiring. The narrow ground PIN can reduce the coupling between the signal line and reduce noise interference; in a limited space, a narrow ground PIN can save space and leave more room for other components.

[0062] When the narrow width setting is set to narrow for the signal pin and wide for the ground pin:

[0063] Improve grounding effect. Wider ground pins can provide a larger contact area, thereby reducing ground resistance and improving grounding effect, which is very important for electromagnetic compatibility (EMC). Wider ground pins can better absorb and disperse current, reduce electromagnetic interference (EMI), and improve system stability.

[0064] It plays a role in protecting signal lines. The wide ground PIN can act as a shield, reducing the impact of external electromagnetic fields on signal lines and protecting signals from interference. In some application scenarios, the wide ground PIN can improve mechanical strength and reduce connection failures caused by vibration or impact. The narrow signal PIN can allow more signal lines to be arranged in the same area, which is suitable for application scenarios requiring high-density signal transmission;

[0065] The product structure stamps out the upper and lower rows of terminals separately, and the terminal width can be adjusted according to high-frequency test parameters, making it easier to pass high-frequency tests. The product performance can meet high-performance requirements, achieving higher product quality.

[0066] The surface of the housing 1 is connected to a foot 7, and one end of the housing 1 is a connection groove 8 for connecting to an external connector. The interior of the connection groove 8 is provided with a spring clamp 9 for increasing the connection stability. One end of the spring clamp 9 is convex.

[0067] The raised shape of the spring clamp 9 can provide a continuous pressure to ensure that the connector can be firmly held in the connection groove 8 after insertion, preventing loosening due to vibration or slight external force. The raised shape of the spring clamp 9 will give the user obvious feedback when inserting or removing the connector, allowing the user to feel that the connection is in place or is being disconnected, thereby improving the certainty of use.

[0068] In addition, the raised spring clip 9 design allows users to apply force more easily during the disassembly and assembly process, and complete the connection or disconnection operation conveniently and quickly. In certain application environments that require high reliability, the raised shape of the spring clip 9 can ensure that a stable connection state can be maintained even under harsh conditions.

[0069] The surface of the shell 1 is provided with a spring sheet 10, and one end of the spring sheet 10 is a spring plate 11, which is convex in shape. The surfaces of both ends of the shell 1 are provided with a card slot 12 for increasing the connection stability, and the card slot 12 is a concave structure; the card slot 12 is designed to cooperate with other components, such as a cover or a protruding part on other modules. Through the embedded assembly method, a more stable connection is formed between the two components to prevent loosening or falling off, thereby achieving the effect of increasing the connection stability. The concave structure can enhance the local mechanical strength by changing the angle of application of the force of the material, thereby avoiding deformation when the shell 1 is subjected to external pressure. When disassembly is required, the design of the card slot 12 can make the installation and disassembly process more convenient and can be completed without the use of tools. At the same time, the card slot 12 can reduce the overall volume of the product to a certain extent, making the product more compact; the spring sheet 10 and the spring plate 11 are both used to prevent loosening or falling off, thereby achieving the effect of increasing the connection stability.

[0070] One end of the mounting base 2 is connected to a base plate 13, and a connection column 14 for mounting with an external connector positioning point is installed on the surface of the base plate 13, and the connection column 14 is a convex structure;

[0071] The raised connection column 14 can provide accurate positioning, ensuring precise docking between the mounting base 2 and the external connector, avoiding unstable connection or incorrect installation due to position deviation. The raised structure can also increase the firmness of the connection, preventing loosening or falling off due to vibration or other external forces, thereby improving the stability of the entire system.

[0072] In addition, the raised connecting column 14 can provide better support when bearing external loads, increase the mechanical strength between the base plate 13 and the external connector, thereby improving the overall durability. At the same time, the design of the structure generally also takes into account the need for easy disassembly, so that the connector can be easily separated when maintenance or replacement is required.

[0073] The upper terminal structure 5 is installed inside the upper terminal injection molded part 3, and the lower terminal structure 6 is installed inside the lower terminal injection molded part 4. The lower terminal injection molded part 4 is connected to the upper terminal injection molded part 3 through the terminal installation groove 15;

[0074] The terminal mounting groove 15 is used to connect the upper and lower terminal injection molded parts 3 and the lower terminal injection molded part 4, which can ensure the precise alignment between the upper and lower terminals and improve the reliability and stability of the connection. The injection molded parts themselves have a certain degree of rigidity and strength, and the design of the terminal mounting groove 15 can help strengthen the bonding force between the upper and lower injection molded parts, thereby enhancing the structural strength of the entire assembly;

[0075] In addition, correct installation and connection can reduce interference and loss during signal transmission, improve electrical performance, and ensure the quality of data transmission. The independent upper terminal structure 5 and lower terminal structure 6 design ensures that the failure of a single component will not affect the operation of the entire system, facilitating troubleshooting and component replacement.

[0076] When assembly is required, the pre-installed terminal structure can reduce the labor cost of subsequent assembly; the standardized connection method is also conducive to large-scale production and procurement, further reducing costs. The separate design allows operators to flexibly adjust the position and number of upper and lower terminals according to different needs to adapt to different application scenarios, which is conducive to rapid assembly on automated production lines and improves production speed.

[0077] One end of the upper terminal structure 5 and the lower terminal structure 6 are respectively an upper terminal pin 16 and a lower terminal pin 17. One end of the upper terminal structure 5 and the lower terminal structure 6 and one end of the upper terminal pin 16 and the lower terminal pin 17 are connected with an upper terminal strip 18 and a lower terminal strip 19. When the upper terminal structure 5 and the lower terminal structure 6 need to be installed, the upper terminal strip 18 and the lower terminal strip 19 are removed by cutting or punching to facilitate installation.

[0078] The surface of the mounting base 2 is connected to a protective block 20, which has an arc-shaped structure. The arc-shaped edge can better disperse stress and reduce stress concentration compared to sharp straight edges, thereby improving the durability and fatigue resistance of the protective block 20. The arc-shaped structure can reduce the risk of accidental injury to the user and reduce the possibility of injury. When assembly requires direct manual contact, the arc-shaped protective block 20 can provide a good grip or touch experience, reducing the pressure of the sharp part of the mounting base 2 on the skin.

[0079] The surface of the upper terminal injection molding 3 is connected with a terminal limiting plate 21 and a terminal clamping block 22. The terminal limiting plate 21 is installed at both ends of the upper terminal injection molding 3, and the terminal clamping block 22 is linearly arranged on the surface of the upper terminal injection molding. The terminal limiting plate 21 and the terminal clamping block 22 increase the connection stability and reduce the probability of the upper terminal injection molding falling.

[0080] The key points of the design of this utility model are: by stamping the upper and lower rows of terminals of the product structure separately, the terminal width can be adjusted according to the high-frequency test parameters, so that the high-frequency test can be easily passed, the product performance can meet the requirements of high performance, and the product quality is higher. It is suitable for different high-frequency parameters and is designed in a targeted manner to achieve the smoothest high-frequency test adjustment, facilitating the passage of current while meeting basic signal performance.

[0081] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should be considered as within the scope of protection of the present invention.

Claims

1. A DISPLAYPOR female connector, comprising a housing, a mounting base, an upper terminal injection molded part, and a lower terminal injection molded part, characterized in that: The upper terminal injection molded part and the lower terminal injection molded part are respectively installed with an upper terminal structure and a lower terminal structure. The upper terminal structure and the lower terminal structure are independent structures. The upper terminal structure and the lower terminal structure are both stamped and formed through a separate process. The width of the front end contact part of the upper terminal structure and the lower terminal structure is a wide-narrow setting or a narrow-wide setting.

2. A DISPLAYPOR female connector according to claim 1, characterized in that: The surface of the shell is connected with a card foot, one end of the shell is a connection groove for connecting an external connector, the interior of the connection groove is provided with a spring clamp for increasing the connection stability, and one end of the spring clamp is in a convex shape.

3. The DISPLAYPOR female connector according to claim 1, characterized in that: A spring sheet is provided on the surface of the shell, one end of the spring sheet is a spring plate, and the spring plate is convex. The surfaces of both ends of the shell are provided with a card slot for increasing the connection stability, and the card slot is a concave structure.

4. A DISPLAYPOR female connector according to any one of claims 1 to 3, characterized in that: One end of the mounting seat is connected to a base plate, and a connecting column for mounting with a positioning point of an external connector is installed on the surface of the base plate, and the connecting column is a convex structure.

5. A DISPLAYPOR female connector according to any one of claims 1 to 3, characterized in that: The upper terminal structure is installed inside the upper terminal injection molded part, and the lower terminal structure is installed inside the lower terminal injection molded part. The lower terminal injection molded part is connected to the upper terminal injection molded part through the terminal installation groove.

6. A DISPLAYPOR female connector according to any one of claims 1 to 3, characterized in that: One end of the upper terminal structure and the lower terminal structure are respectively the upper terminal pin and the lower terminal pin, and one end of the upper terminal structure and the lower terminal structure and one end of the upper terminal pin and the lower terminal pin are connected to the upper terminal strip and the lower terminal strip.

7. A DISPLAYPOR female connector according to any one of claims 1 to 3, characterized in that: The surface of the mounting seat is connected with a protective block, which is in an arc-shaped structure.

8. A DISPLAYPOR female connector according to any one of claims 1 to 3, characterized in that: The surface of the upper terminal injection molded part is connected with a terminal limiting plate and a terminal clamping block. The terminal limiting plates are installed at both ends of the upper terminal injection molded part, and the terminal clamping blocks are linearly arranged on the surface of the upper terminal injection molded part.

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