A metal housing for a D-sub connector
By incorporating a wire harness arrangement component within the metal housing of the D-sub connector, the problems of loose and tangled signal wires are resolved, resulting in neat wire arrangement and good heat dissipation, thereby improving the stability and lifespan of the connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZHENGRUI ELECTRONIC CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-03
AI Technical Summary
The lack of cable fixing components inside the metal housing of the D-sub connector can lead to loose or damaged signal wire terminals, multiple signal wires tangled together, and poor heat dissipation, thus affecting its service life.
Design a metal housing comprising a lower housing and an upper housing, with an internal wiring harness arrangement assembly including a fan-shaped support plate and a mesh partition. The wires are fixed by limiting blocks, inserts, springs, and threaded connections to ensure neat wire arrangement and enhance heat dissipation.
It effectively prevents wire tangling, improves connector stability and lifespan, facilitates maintenance, and enhances heat dissipation performance.
Smart Images

Figure CN224458696U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, specifically to a metal housing for a D-sub connector. Background Technology
[0002] D-sub connectors are data transmission devices commonly used to connect computers, communication equipment, industrial control systems, and other devices. They offer advantages such as convenient connection and stable signal transmission, making them widely used in various applications.
[0003] Existing D-Sub connectors have multiple sets of signal wires inside their housings. The metal housing of the D-Sub connector lacks cable securing components, meaning that terminals on the signal wires may loosen or become damaged when the connector is moved. Furthermore, multiple sets of signal wires are prone to tangling, making subsequent maintenance difficult. The tangled wires also hinder heat dissipation, potentially shortening the connector's lifespan.
[0004] To address the aforementioned technical problems, this application proposes a metal housing for a D-sub connector. Utility Model Content
[0005] I. Technical problems to be solved
[0006] The technical problem this invention aims to solve is that the metal housing of the D-sub connector does not have a cable fixing component inside, the terminals on the signal wires may become loose or damaged, and multiple sets of signal wires are tangled together, making heat dissipation difficult.
[0007] II. Technical Solution
[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a metal housing for a D-sub connector, including a lower housing and an upper housing, the lower housing and the upper housing being connected, a wire harness arrangement assembly being rotatably installed inside the lower housing, the wire harness arrangement assembly including a fan-shaped support plate and multiple sets of mesh partitions, the multiple sets of mesh partitions being arranged in a fan shape and installed on the upper side of the fan-shaped support plate, and multiple sets of connecting wires being arranged between two sets of mesh partitions;
[0009] The bottom of the lower housing is equipped with multiple sets of limiting blocks, the bottom of the fan-shaped support plate is provided with a slot for inserting the limiting blocks, and the inner wall of the upper housing is equipped with an insulating pressure plate.
[0010] As an improvement, connecting plates are installed on both sides of the fan-shaped support plate, and a plug rod and a spring are installed on the outer side of the connecting plate. The spring is sleeved on the outer side of the plug rod, and a limit ring is installed at the end. A limit groove is provided on the inner wall of the tail of the lower housing, and the limit ring and the plug rod are inserted into the limit groove.
[0011] As an improvement, multiple sets of threaded cylinders are installed inside the lower housing, and a threaded shaft passes through the upper housing. The threaded shaft passes into the threaded cylinder and is connected by threads to fix the lower housing and the upper housing together.
[0012] As an improvement, connecting block one is installed on both sides of the lower housing, and connecting block two is installed on both sides of the upper housing. When the lower housing is connected to the upper housing, connecting block one and connecting block two on the same side fit together, and a connecting screw passes through between them.
[0013] As an improvement, wire limiting pads are installed on the inner side of the tail end of the lower housing and the upper housing.
[0014] III. Beneficial Effects
[0015] The advantages of this utility model compared with the prior art are as follows: a wire harness arrangement assembly is installed on the inner side of the lower shell and the upper shell, and multiple sets of connecting wires are arranged between two sets of mesh partitions to prevent multiple sets of connecting wires from crossing and tangling, which would make subsequent maintenance inconvenient. In conjunction with the multiple sets of through holes on the mesh partitions, the connecting wires can dissipate heat, thereby improving the service life of the connector. Attached Figure Description
[0016] Figure 1 This is an exploded view of a metal housing for a D-sub connector according to the present invention.
[0017] Figure 2 This is a schematic diagram of the external structure of a metal housing for a D-sub connector according to the present invention.
[0018] Figure 3 This is a schematic diagram of the upper structure of a wire harness arrangement assembly for a metal housing of a D-sub connector according to the present invention.
[0019] Figure 4 This is a schematic diagram of the lower structure of a wire harness arrangement assembly for a metal housing of a D-sub connector according to the present invention.
[0020] Figure 5 This is a schematic diagram of the inner structure of the upper shell of a metal housing for a D-sub connector according to the present invention.
[0021] As shown in the figure: 1. Lower shell; 2. Upper shell; 3. Threaded cylinder; 4. Threaded shaft; 5. Connecting block one; 6. Connecting block two; 7. Connecting screw; 8. Wire harness arrangement assembly; 801. Fan-shaped support plate; 802. Mesh partition; 803. Connecting plate; 804. Insert rod; 805. Spring; 806. Limiting ring; 9. Limiting groove; 10. Limiting block; 11. Slot; 12. Insulating pressure plate; 13. Wire limiting pad. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] As attached Figure 1 and attached Figure 2 As shown, a metal housing for a D-sub connector includes a lower housing 1 and an upper housing 2. Multiple sets of threaded cylinders 3 are installed inside the lower housing 1. A threaded shaft 4 passes through the upper housing 2 and is threaded into the threaded cylinders 3 to fix the lower housing 1 and the upper housing 2. Wire limiting pads 13 are installed on the inner side of the tail ends of the lower housing 1 and the upper housing 2. Multiple sets of connecting wires are covered with insulating sleeves and clamped between two sets of wire limiting pads 13, thereby clamping and limiting the wires.
[0024] To prevent multiple sets of connecting wires from tangling and to improve heat dissipation from the connecting wires, as shown in the attached document... Figure 1 Appendix Figure 3 and attached Figure 4 As shown, a wire harness arrangement assembly 8 is rotatably installed inside the lower housing 1. The wire harness arrangement assembly 8 includes a fan-shaped support plate 801 and multiple sets of mesh partitions 802. Connecting plates 803 are respectively installed on both sides of the fan-shaped support plate 801. Insert rods 804 and springs 805 are installed on the outer side of the connecting plates 803. The springs 805 are sleeved on the outer side of the insert rods 804, and a limiting ring 806 is installed at the end. A limiting groove 9 is provided on the inner wall of the tail of the lower housing 1. Inserting the insert rod 804 and the limiting ring 806 on one side into the limiting groove 9 and compressing the spring 805, and then inserting the insert rod 804 and the limiting ring 806 on the other side into the limiting groove 9, the position of the insert rod 804 in the limiting groove 9 is adjusted by the rebound force of the spring 805, and the fan-shaped support plate 801 is rotatably connected to the lower housing 1, which facilitates the installation and removal of the wire harness arrangement assembly 8.
[0025] Multiple sets of perforated partitions 802 are arranged in a fan shape and installed on the upper side of the fan-shaped support plate 801. Multiple sets of connecting wires are arranged between two sets of perforated partitions 802 to prevent the multiple sets of connecting wires from crossing and tangling. The multiple sets of through holes on the perforated partitions 802 facilitate heat dissipation of the connecting wires.
[0026] The bottom of the lower housing 1 is equipped with multiple sets of limiting blocks 10. The bottom of the fan-shaped support plate 801 is provided with a slot 11 for inserting the limiting block 10. After the fan-shaped support plate 801 is rotated and installed, the limiting block 10 is inserted into the corresponding slot 11 to limit the fan-shaped support plate 801. The inner wall of the upper housing 2 is equipped with an insulating pressure plate 12. After multiple sets of connecting wires are arranged between the two sets of mesh partitions 802, when the lower housing 1 is connected to the upper housing 2, the insulating pressure plate 12 presses on the upper side of the mesh partition 802 to limit the connecting wires.
[0027] For the stability of the D-sub connector port connection, see attached... Figure 2 and attached Figure 5 As shown, connecting blocks 1 and 5 are respectively installed on both sides of the lower housing 1, and connecting blocks 2 and 6 are respectively installed on both sides of the upper housing 2. When the lower housing 1 and the upper housing 2 are connected, the connecting block 1 and the connecting block 2 and 6 on the same side are in contact, and a connecting screw 7 passes through between them. The end of the connecting screw 7 is inserted into the connecting end for connection, thereby improving the stability of the D-sub connector port connection.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A metal housing for a D-sub connector, comprising a lower housing (1) and an upper housing (2), wherein the lower housing (1) and the upper housing (2) are connected, characterized in that: The lower housing (1) is rotatably installed with a wire harness arrangement assembly (8). The wire harness arrangement assembly (8) includes a fan-shaped support plate (801) and multiple sets of mesh partitions (802). The multiple sets of mesh partitions (802) are arranged in a fan shape and installed on the upper side of the fan-shaped support plate (801). Multiple sets of connecting wires are arranged between the two sets of mesh partitions (802). The bottom of the lower housing (1) is equipped with multiple sets of limiting blocks (10), the bottom of the fan-shaped support plate (801) is provided with a slot (11) for inserting the limiting blocks (10), and the inner wall of the upper housing (2) is equipped with an insulating pressure plate (12).
2. A metal housing for a D-sub connector according to claim 1, characterized in that: Connecting plates (803) are installed on both sides of the fan-shaped support plate (801). A plug rod (804) and a spring (805) are installed on the outside of the connecting plate (803). The spring (805) is sleeved on the outside of the plug rod (804) and a limiting ring (806) is installed at its end. A limiting groove (9) is provided on the inner wall of the tail of the lower housing (1). The limiting ring (806) and the plug rod (804) are inserted into the limiting groove (9).
3. The metal housing for a D-sub connector according to claim 1, wherein: The lower housing (1) is equipped with multiple sets of threaded cylinders (3), and the upper housing (2) is through which a threaded shaft (4) passes. The threaded shaft (4) passes into the threaded cylinder (3) and is connected by threads to fix the lower housing (1) and the upper housing (2).
4. The metal housing for a D-sub connector according to claim 1, wherein: Connecting blocks 1 (5) are installed on both sides of the lower housing (1), and connecting blocks 2 (6) are installed on both sides of the upper housing (2). When the lower housing (1) is connected to the upper housing (2), the connecting blocks 1 (5) and the connecting blocks 2 (6) on the same side are in contact, and a connecting screw (7) passes through between them.
5. The metal housing for a D-sub connector according to claim 1, wherein: The lower housing (1) and the upper housing (2) are equipped with wire limiting pads (13) on the inner side of their tail ends.