A car burglar alarm wire harness assembly
The wiring harness clamping structure and drainage design solve the problems of loosening and poor contact of the wiring harness under vibration and humidity conditions, thereby improving the connection reliability and protection performance of the car anti-theft device wiring harness assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU HETAI ELECTRONICS CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-08-04
AI Technical Summary
Existing car alarm wiring harnesses are prone to loosening and poor contact under vibration and ambient humidity, and lack sufficient protective measures, affecting connection reliability and security.
The harness employs a clamping structure with a lower and upper locking block, combined with a protective sleeve through hole and an external drainage hole, to ensure that the harness does not loosen under vibration conditions and to expel moisture in humid environments, thereby improving connection reliability and protection performance.
It effectively prevents the wiring harness from becoming loose or making poor contact during vehicle vibration, reduces the risk of moisture ingress, improves connection reliability, and extends service life.
Smart Images

Figure CN224589076U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a car anti-theft device wiring harness assembly. Background Technology
[0002] The wiring harness assembly for car alarms is a key component for electrical signal transmission in the alarm control system. It typically includes the wiring harness, connectors, a wiring harness protective structure, and an installation interface that mates with the alarm unit. Existing car alarm wiring harness assemblies generally suffer from simple structural fixing methods and insufficient protective measures. During the process of the wiring harness passing through the control box and connecting to the circuit board, it is often guided and limited by a soft sleeve or a simple crimping structure. When the car encounters continuous vibration, acceleration / deceleration impacts, or road bumps during driving, the wiring harness is prone to axial displacement or pulling, leading to loosening or detachment of the connection, or even failures such as poor circuit board contact or broken solder joints. In severe cases, this can cause malfunctions or false alarms in the alarm system, affecting vehicle safety. Furthermore, traditional wiring harness protective structures often lack drainage, anti-slip, and installation positioning functions. Especially in humid or condensing environments, moisture can easily enter the control box through the wiring harness, causing circuit board corrosion or short circuits. The wiring harness is also prone to slight slippage within the protective sleeve; accumulated displacement over time also affects connection reliability. Utility Model Content
[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide a car anti-theft device wiring harness assembly.
[0004] The technical solution adopted by the car anti-theft device wiring harness assembly of this utility model is characterized by comprising a wiring harness, a connector female connected to the outer end of the wiring harness, a wiring harness protective sleeve, an anti-theft device base, and an anti-theft device cover. The wiring harness protective sleeve includes an outer protective sleeve portion, a protective sleeve limiting portion, and a protective sleeve inner protective sleeve portion. The wiring harness protective sleeve has a protective sleeve through hole for the inner end of the wiring harness to pass through. The protective sleeve limiting portion has a protective sleeve limiting groove in the middle, and the left and right ends of the protective sleeve limiting groove have square notches. The upper and lower ends of the protective sleeve limiting groove are provided with protective sleeve locking holes that are perpendicular to and communicate with the protective sleeve through hole. The anti-theft device base has a base cavity, and the inner wall of the base cavity has a base positioning groove. The inner walls of the left and right ends of the anti-theft device base are provided with holes for the middle part of the protective sleeve limiting portion to insert. The device includes a base socket corresponding to the square cutout of the limiting groove. The bottom of the base socket has an arc-shaped groove that connects with the limiting groove of the protective sleeve. The arc-shaped groove has a lower locking block for inserting the wire harness into the locking hole of the protective sleeve from below. The anti-theft cover includes a cover body and an outer cover edge placed on the positioning groove of the base. The left and right ends of the outer cover edge have cover inserts that connect with the base socket. The cover inserts have arc-shaped grooves that connect with the upper end of the limiting groove of the protective sleeve. The arc-shaped grooves have upper locking blocks for inserting the wire harness into the locking hole of the protective sleeve from above and cooperating with the lower locking block to prevent the wire harness protective sleeve from moving back and forth.
[0005] The protective sleeve through hole has upper anti-slip protrusions and lower anti-slip protrusions spaced apart on the upper and lower walls of the outer part of the protective sleeve.
[0006] The upper anti-slip protrusion and the lower anti-slip protrusion are staggered, and the height of both the upper and lower anti-slip protrusions is less than 0.5 mm.
[0007] The outer part of the protective sleeve is provided with external drainage holes at the upper and lower ends.
[0008] The cover insert has a block limiting protrusion at the left and right ends, and the base positioning groove has a base limiting groove at the left and right ends of the base insertion port that corresponds to the block limiting protrusion.
[0009] The advantages of this car anti-theft device wiring harness assembly are as follows: the wiring harness is clamped by the lower and upper locking blocks, which can effectively prevent the wiring harness from axially loosening, shaking, or poor contact under vehicle vibration or stress conditions, thus improving connection reliability; the external drainage hole can drain accumulated water in humid or condensing environments, reducing the risk of moisture entering the control box along the wiring harness, significantly improving the overall moisture and condensation resistance of the device, and extending its service life. Attached Figure Description
[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0011] Figure 1 This is a schematic diagram of the structure of the car anti-theft device wiring harness assembly of this utility model; Figure 2 This is a schematic diagram of a structure of the wire harness protective sleeve of this utility model; Figure 3 This is another structural schematic diagram of the wire harness protective sleeve of this utility model; Figure 4 This is a schematic diagram of the structure of the anti-theft device base of this utility model; Figure 5 This is a schematic diagram of the structure of the anti-theft device cover of this utility model; Figure 6 This is a side view of the wire harness protective sleeve of this utility model. Detailed Implementation
[0012] like Figure 1-6 As shown, the car anti-theft device wiring harness assembly of this utility model includes a wiring harness 1 and a connector female 2 connected to the outer end of the wiring harness 1. The device comprises a wire harness protective sleeve 3, an anti-theft device base 4, and an anti-theft device cover 5. The wire harness protective sleeve 3 includes an outer protective sleeve portion 7, a protective sleeve limiting portion 8, and a protective sleeve inner protective sleeve portion 9. The wire harness protective sleeve 3 has a protective sleeve through hole 10 for the inner end of the wire harness 1 to pass through. The protective sleeve limiting portion 8 has a protective sleeve limiting groove 11 in the middle. The protective sleeve limiting groove 11 has a limiting groove square cutout 12 at its left and right ends. The upper and lower ends of the protective sleeve limiting groove 11 are provided with protective sleeve locking holes 13 that are perpendicular to the protective sleeve through hole 10. The anti-theft device base 4 has a base cavity 15. The inner wall of the base cavity 15 has a base positioning groove 16. The inner walls of the left and right ends of the anti-theft device base 4 have base insertion holes 17 for the middle of the protective sleeve limiting portion 8 to be inserted and corresponding to the square cutout 12 of the limiting groove. The bottom of the base insertion hole 17 has an insertion arc groove 18 that is connected to the protective sleeve limiting groove 11. The arc-shaped groove 18 of the socket is provided with a lower locking block 19 for inserting into the locking port 13 of the protective sleeve from below. The anti-theft cover 5 includes a cover body 20 and an outer cover edge 21 placed on the positioning groove 16 of the base. The left and right ends of the outer cover edge 21 are provided with cover insert blocks 22 that are opposite to the socket 17 of the base. The cover insert block 22 is provided with an arc-shaped groove 23 that is connected to the upper end of the limiting groove 11 of the protective sleeve. The arc-shaped groove 23 is provided with an upper locking block 24 for inserting into the locking port 13 of the protective sleeve from above and cooperating with the lower locking block 19 to prevent the protective sleeve 3 of the wire harness from moving back and forth. The wire harness 1 passing through the protective sleeve 3 is clamped by the lower locking block 19 and the upper locking block 24, which can effectively prevent the wire harness from axially loosening, shaking or poor contact under vehicle vibration or stress conditions, and improve the connection reliability.
[0013] The protective sleeve through hole 10 has an upper anti-slip protrusion 27 and a lower anti-slip protrusion 26 spaced apart on the upper and lower walls of the outer part 7 of the protective sleeve.
[0014] The upper anti-slip protrusion 27 and the lower anti-slip protrusion 26 are staggered, and the height of the upper anti-slip protrusion 27 and the height of the lower anti-slip protrusion 26 are both less than 0.5mm, forming a fine anti-slip structure, which further improves the positioning accuracy of the wire harness in the protective sleeve and prevents slight loosening from affecting the wiring effect.
[0015] The outer part 7 of the protective sleeve is provided with external drainage holes 29 at the upper and lower ends, which can drain accumulated water in humid or condensing environments, reduce the risk of water vapor entering the control box along the wiring harness, significantly improve the overall moisture resistance and anti-condensation performance of the machine, and extend its service life.
[0016] The cover insert 22 has insert limiting protrusions 30 at its left and right ends, and the base positioning groove 16 has base limiting grooves 31 at its left and right ends at the base insertion 17, corresponding to the insert limiting protrusions 30, so as to realize secondary limiting cooperation between the cover and the base and prevent the cover from loosening due to vibration during use.
[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.
Claims
1. A car anti-theft device wiring harness assembly, characterized in that: Includes a wire harness (1) and a connector female (2) connected to the outer end of the wire harness (1). The device comprises a wire harness protective sleeve (3), an anti-theft device base (4), and an anti-theft device cover plate (5). The wire harness protective sleeve (3) includes an outer protective sleeve part (7), a protective sleeve limiting part (8), and an inner protective sleeve part (9). The wire harness protective sleeve (3) has a protective sleeve through hole (10) for the inner end of the wire harness (1) to pass through. The protective sleeve limiting part (8) has a protective sleeve limiting groove (11) in the middle. The protective sleeve limiting groove (11) has a limiting groove square cutout (12) at the left and right ends. The upper and lower ends of the protective sleeve limiting groove (11) are provided with protective sleeve locking holes (13) that are perpendicular to the protective sleeve through hole (10). The anti-theft device base (4) has a base cavity (15). The inner wall of the base cavity (15) is provided with a base positioning groove (16). The inner walls of the left and right ends of the anti-theft device base (4) are provided with a groove for the middle of the protective sleeve limiting part (8) to be inserted and opposite to the limiting groove square cutout (12). The base socket (17) has a corresponding base socket (17), the bottom of which is provided with an arc-shaped groove (18) that is opposite to the protective sleeve limiting groove (11). The arc-shaped groove (18) is provided with a wire harness lower locking block (19) for insertion into the protective sleeve locking port (13) from below. The anti-theft cover (5) includes a cover body (20) and an outer cover edge (21) placed on the base positioning groove (16). The outer cover edge (21) 21) The left and right ends are provided with cover inserts (22) that are connected to the base insert (17). The cover inserts (22) are provided with cover arc grooves (23) that are connected to the upper end of the protective sleeve limiting groove (11). The cover arc grooves (23) are provided with wire harness upper locking blocks (24) for inserting from above into the protective sleeve locking opening (13) and cooperating with the lower locking block (19) of the wire harness to prevent the wire harness protective sleeve (3) from moving back and forth.
2. The car anti-theft device wiring harness assembly according to claim 1, characterized in that: The protective sleeve through hole (10) has an upper anti-slip protrusion (27) and a lower anti-slip protrusion (26) spaced apart on the upper and lower walls of the outer part (7) of the protective sleeve.
3. The car anti-theft device wiring harness assembly according to claim 2, characterized in that: The upper anti-slip protrusion (27) and the lower anti-slip protrusion (26) are staggered, and the height of the upper anti-slip protrusion (27) and the height of the lower anti-slip protrusion (26) are both less than 0.5 mm.
4. The car anti-theft device wiring harness assembly according to claim 1, characterized in that: The outer part (7) of the protective sleeve is provided with external drainage holes (29) at the upper and lower ends.
5. The car anti-theft device wiring harness assembly according to claim 1, characterized in that: The cover insert (22) has insert limiting protrusions (30) on the left and right ends, and the base positioning groove (16) has base limiting grooves (31) on the left and right ends of the base insertion (17) corresponding to the insert limiting protrusions (30).