External structure of connecting end of pressure sensor
By designing an external structure for the pressure sensor connection end, using interference fit and epoxy resin sealing, combined with a ceramic chip and O-ring, the problem of insufficient space during installation at the car factory is solved, and a stable connection and improved waterproof performance are achieved.
Patent Information
- Application Number
- CN202422993776.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-04
AI Technical Summary
When installing pressure sensors, car manufacturers lack space and need to lead out the plug-in at the sensor end, which also requires good waterproof performance, firm contact, and high stability.
A pressure sensor connection end external structure was designed, including a wiring harness, terminal button, flexible circuit board assembly and a filled outer shell. Interference fit and epoxy resin sealing were used, combined with a ceramic chip and O-ring to ensure connection stability and waterproof performance.
It achieves a stable connection between the wiring harness and the terminal button, improves waterproof performance and connection firmness, reduces space occupation, and facilitates operation.
Smart Images
Figure CN223487456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness connection technology, and in particular to an external structure for the connection end of a pressure sensor. Background Technology
[0002] Currently, the pressure sensor connector is a plug-in connector. After installation on the vehicle, the wiring harness connector is inserted into the sensor. However, during installation, vehicle manufacturers may encounter insufficient space and need to extend the sensor connector. To address this issue, the structure requires a small space, good waterproof performance, reliable contact, and high stability. Therefore, an external pressure sensor connection structure is needed to meet these requirements. Utility Model Content
[0003] The purpose of this invention is to provide an external structure for the connection end of a pressure sensor, in order to solve the problem mentioned in the background art where car manufacturers may encounter insufficient space during installation, requiring the sensor end plug to be brought out.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an external structure for the pressure sensor connection end, including a wire harness, one end of which is equipped with a three-hole male terminal, and the other end of which is equipped with a terminal button. A terminal button insert is fixedly installed inside the terminal button, and another terminal button insert is fixedly installed on the terminal button insert. The terminal button insert and the wire inside the wire harness are soldered together. A flexible circuit board assembly and an output wire harness are fixedly installed inside the terminal button. The terminal button insert, the flexible circuit board assembly, and the output wire harness are electrically connected. A filling shell is fixedly installed on the terminal button, and the filling shell is filled with filling resin.
[0005] Preferably, a ceramic chip is fixedly installed inside the end button, an O-ring is installed between the ceramic chip and the end button, and an insulating shell is installed on the end button.
[0006] Preferably, three positioning frames are fixedly installed on the inner wall of the filling shell, and a positioning plate is fixedly installed on the end of each positioning frame near the wire harness, and all three positioning plates are in contact with the wire harness.
[0007] Preferably, a tail clip is installed on the three-hole male end, and the tail clip is installed on the wire harness.
[0008] Preferably, a waterproof plug is installed at the end of the three-hole male terminal away from the wire harness, and power, signal, and grounding terminals are provided on the inner wall of the waterproof plug.
[0009] Preferably, the filling resin is epoxy resin.
[0010] The beneficial effects of the utility model are:
[0011] In this invention, the wire harness is inserted into the end button, and the wire harness and the end button are interference-fitted to ensure stable assembly. The three wires inside the wire harness are welded to the insert plate inside the end button. After welding, epoxy resin sealant is poured in. After the epoxy resin sealant cures, the wire harness and the end button are firmly connected, with strong pull-out resistance and good waterproof performance. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the external pressure sensor connection end structure proposed in this utility model.
[0013] Figure 2 This is a bottom view of the external pressure sensor connection structure proposed in this utility model.
[0014] Figure 3 This is a schematic diagram of the three-hole male end portion of the external pressure sensor connection structure proposed in this utility model.
[0015] Figure 4 This is a schematic diagram of the end button portion of the external pressure sensor connection structure proposed in this utility model.
[0016] Figure 5 This is a cross-sectional view of the end button portion of the external pressure sensor connection structure proposed in this utility model.
[0017] In the diagram: 100, wire harness; 200, three-hole male terminal; 201, tail clip; 202, waterproof plug; 203, power supply; 204, signal; 205, ground; 300, terminal; 301, terminal insert; 302, filling housing; 303, filling resin; 304, flexible circuit board assembly; 305, output wire harness; 306, ceramic chip; 307, O-ring seal; 308, insulating housing; 309, positioning frame; 310, positioning tray. Detailed Implementation
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0019] Reference Figure 1-5The pressure sensor connection terminal external structure includes a wiring harness 100. One end of the wiring harness 100 is equipped with a three-hole male terminal 200, and the other end is equipped with a terminal button 300. A terminal button insert 301 is fixedly installed inside the terminal button 300. Terminal button inserts 301 are also fixedly installed on the terminal button insert 301. The terminal button inserts 301 and the wires inside the wiring harness 100 are soldered together. A flexible circuit board assembly 304 and an output wiring harness 305 are fixedly installed inside the terminal button 300. The insert 301, flexible circuit board assembly 304, and output wire harness 305 are electrically connected. A filling shell 302 is fixedly installed on the terminal button 300. The filling shell 302 is filled with filling resin 303. The wire harness is inserted into the terminal button. The wire harness and the terminal button adopt an interference fit to ensure stable assembly of the wire harness and the terminal button. The three wires in the wire harness are welded to the insert in the terminal button. After welding, epoxy resin sealant is poured in. After the epoxy resin sealant cures, the wire harness and the terminal button are firmly connected, with strong pull-out resistance and good waterproof performance.
[0020] In an optional embodiment: a ceramic chip 306 is fixedly installed inside the end button 300, an O-ring 307 is installed between the ceramic chip 306 and the end button 300, and an insulating shell 308 is installed on the end button 300.
[0021] It should be noted that the ceramic chip 306 is used for control, and the O-ring 307 ensures the seal inside the end button 300. The compact structure reduces space occupation and facilitates operation.
[0022] In an optional embodiment: three positioning frames 309 are fixedly installed on the inner wall of the filling housing 302, and a positioning plate 310 is fixedly installed on the end of each positioning frame 309 near the wire harness 100, and all three positioning plates 310 are in contact with the wire harness 100.
[0023] It should be noted that the positioning bracket 309 and the positioning plate 310 are used to initially fix the position of the wire harness 100 in the end button 300.
[0024] In an optional embodiment: a tail clip 201 is installed on the three-hole male terminal 200, the tail clip 201 is installed on the wire harness 100, and a waterproof plug 202 is installed on the end of the three-hole male terminal 200 away from the wire harness 100. A power supply 203, a signal 204, and a ground 205 are provided on the inner wall of the waterproof plug 202.
[0025] It should be noted that in the three-pin male terminal 200 section, the three-pin male terminal 200 is connected to the wire harness 100 using a tail clip 201, and the wires of the wire harness 100 are connected to the power supply 203, signal 204, and ground 205.
[0026] In an optional embodiment: the filling resin 303 is an epoxy resin.
[0027] It should be noted that the connection between the wire harness 100 and the end cap 300 is filled with filling resin 303 to ensure the sealing of the connection between the wire harness 100 and the end cap 300.
[0028] Working principle of this utility model:
[0029] When installing this device, the two ends of the wire harness 100 need to be installed on the three-hole male terminal 200 and the terminal block 300 respectively. For the terminal block 300, firstly, the positioning bracket 309 and the positioning support plate 310 are used to initially fix the position of the wire harness 100 in the terminal block 300. Then, the terminal block insert 301 inside the terminal block 300 needs to be soldered to the wire inside the wire harness 100. Finally, the connection between the wire harness 100 and the terminal block 300 is filled with filling resin 303. The filling resin 303 is used to ensure that the wire harness 100 and the terminal block 300 are securely connected. The sealing of the button 300 connection is achieved by using a flexible circuit board assembly 304 and an output harness 305 inside the button 300 for output, and a ceramic chip 306 for control. An O-ring 307 ensures the sealing inside the button 300. The compact structure reduces space occupation and facilitates operation. In the three-hole male terminal 200, the three-hole male terminal 200 is connected to the harness 100 using a tail clip 201, and the wires of the harness 100 are connected to the power supply 203, signal 204, and ground 205.
[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An external structure for the pressure sensor connection end, including a wiring harness (100), characterized in that: One end of the wire harness (100) is equipped with a three-hole male terminal (200), and the other end of the wire harness (100) is equipped with a terminal button (300). A terminal button insert (301) is fixedly installed inside the terminal button (300). A terminal button insert (301) is fixedly installed on the terminal button insert (301). The terminal button insert (301) is soldered to the wires inside the wire harness (100). A flexible circuit board assembly (304) and an output wire harness (305) are fixedly installed inside the terminal button (300). The terminal button insert (301), the flexible circuit board assembly (304), and the output wire harness (305) are electrically connected. A filling shell (302) is fixedly installed on the terminal button (300). The filling shell (302) is filled with filling resin (303).
2. The external pressure sensor connection structure according to claim 1, characterized in that: A ceramic chip (306) is fixedly installed inside the end button (300), an O-ring (307) is installed between the ceramic chip (306) and the end button (300), and an insulating shell (308) is installed on the end button (300).
3. The external pressure sensor connection structure according to claim 1, characterized in that: Three positioning frames (309) are fixedly installed on the inner wall of the filling shell (302). Each positioning frame (309) has a positioning plate (310) fixedly installed at one end near the wire harness (100). All three positioning plates (310) are in contact with the wire harness (100).
4. The external pressure sensor connection structure according to claim 1, characterized in that: A tail clip (201) is installed on the three-hole male end (200), and the tail clip (201) is installed on the wire harness (100).
5. The external pressure sensor connection structure according to claim 1, characterized in that: A waterproof plug (202) is installed at the end of the three-hole male terminal (200) away from the wire harness (100). A power supply (203), a signal (204), and a ground (205) are provided on the inner wall of the waterproof plug (202).
6. The external pressure sensor connection structure according to claim 1, characterized in that: The filling resin (303) is epoxy resin.