CN221552272U - Connecting wire harness for tunnel illumination - Google Patents

Abstract

The utility model provides a connecting wire harness for tunnel illumination, which has compact structure and excellent waterproof performance, can meet the use requirement of an illumination system in a tunnel humid environment, has higher reliability and stability, and can be widely applied to other illumination systems. The connecting wire harness of the utility model completes double-layer wrapping at the junction of the wire harness and the terminal assembly through the inner die and the outer die, thereby avoiding the exposed conductive structure at the junction from being permeated with water vapor, improving the waterproof sealing performance of the connecting wire harness, effectively solving the problem of easy short circuit in a humid environment, ensuring the structural strength of the plug through the external plastic shell, reducing the probability of damage and improving the service life and reliability of the lighting system. The utility model provides a tunnel lighting device.

Description

Connecting wire harness for tunnel illumination

Technical Field

The utility model relates to the technical field of connecting wire harnesses, in particular to a connecting wire harness for tunnel illumination.

Background

Besides meeting general performance requirements, the connection harness has the particularly important requirements that the connection harness is good in contact, reliable in work and convenient to maintain, and whether the work reliability directly influences the normal work of a circuit or not influences the security risk of the whole equipment. Because the connection harness can facilitate the electrical connection of various circuits, the connection harness is often applied to the power and signal connection of various lighting systems.

At present, the lighting system in the tunnel also adopts a connecting wire harness to finish electric power and signal connection, but the waterproof sealing effect of the existing connecting wire harness is poor, the situation of short circuit is easy to permeate water in the moist environment of the tunnel, and the service life of the lighting system is influenced. It is therefore desirable to provide a connection harness for tunnel illumination.

Disclosure of utility model

The utility model provides a connecting wire harness for tunnel illumination, which aims to solve the problem of airtight and waterproof of the connecting wire harness.

The object of the utility model is achieved by:

The utility model provides a connecting harness that tunnel illumination was used, includes power cord and signal line, power cord and signal line carry out electric connection with the outside through a plug, the plug including the external mold, set up in internal mold in the external mold and cover establish plastic shell on the external mold, the one end integrated into one piece of external mold has and is used for carrying out complex grafting portion with the outside, be provided with in the grafting portion be used for with power cord and signal line carry out the terminal assembly who is connected.

Further, one end of the outer die, which is far away from the plug-in connection part, is integrally formed with a reset wire tail.

Further, the terminal assembly comprises a fixing plate, and a signal terminal and a power terminal which penetrate through the fixing plate, wherein the signal terminal and the power terminal are respectively and electrically connected with the power line and the signal line.

Further, the plug-in portion comprises two spacing protruding formations that the interval set up, signal terminal and power supply terminal set up respectively in two spacing protruding formations, spacing protruding correspondence signal terminal and power supply terminal's position is provided with the spliced eye that is used for switching on with outside respectively.

Further, the fixing plate is mounted on the plastic shell through corresponding screws.

Further, a fixing frame for being matched with the plastic shell is arranged at the lower end of the fixing plate.

Further, the thickness of the fixing plate is 6-10mm.

Further, the outer sides of the power line and the signal line are wrapped with insulating layers.

Further, a sealing protrusion is arranged around the lower end of the plug-in part.

According to the utility model, double-layer wrapping is completed at the junction of the cable and the terminal assembly through the inner die and the outer die, so that the exposed conductive structure at the junction is prevented from being permeated with water vapor, the waterproof sealing performance of the connecting wire harness is improved, the problem of easy short circuit in a humid environment is effectively solved, the structural strength of the plug is ensured through the outer plastic shell, the probability of damage is reduced, and the service life and reliability of the lighting system are improved.

Drawings

Fig. 1 is a schematic view showing a structure of a connection harness for tunnel illumination in the first embodiment;

Fig. 2 is a first exploded view of a connection harness for tunnel illumination according to the first embodiment;

fig. 3 is a second exploded view of a connection harness for tunnel illumination according to the first embodiment;

fig. 4 is a schematic structural view of a connection harness for tunnel illumination in the second embodiment;

fig. 5 is an exploded view of a connecting harness for tunnel illumination in the second embodiment;

fig. 6 is an exploded view of a connection harness for tunnel illumination according to a third embodiment;

The reference numerals in the drawings are respectively: 1-cable, 1A-power line, 1B-signal line, 2-plug, 2A-external mold, 21A-plug part, 22A-reset wire tail, 23A-sealing bulge, 2B-internal mold, 2C-plastic shell, 3-fixed plate, 4-signal terminal, 5-power terminal, 6-screw, 7-fixed frame.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the detailed description.

Embodiment one:

Referring to fig. 1-3, a connection harness for tunnel illumination specifically implemented by the present embodiment includes a cable 1 and a plug 2, the cable 1 is electrically connected with the outside through the plug 2, the plug 2 includes an outer mold 2A, an inner mold 2B disposed in the outer mold 2A, and a plastic housing 2C sleeved on the outer mold 2A, one end of the outer mold 2A is integrally formed with a plugging portion 21A for mating with the outside, and a terminal assembly for electrically connecting with the cable 1 is disposed in the plugging portion 21A.

The cable 1 in this embodiment includes a power line 1A for providing power and a signal line 1B for outputting a control signal, where the power line 1A and the signal line 1B are respectively provided with a plurality of power lines to meet the requirement of practical use.

Further, the end of the outer mold 2A away from the plugging portion 21A is integrally formed with a reset wire tail 22A for protecting the cable 1, and the reset limit can avoid excessive bending of the cable 1.

In this embodiment, the terminal assembly includes a fixing plate 3, and a signal terminal 4 and a power terminal 5 penetrating through the fixing plate 3, where the signal terminal 4 and the power terminal 5 are electrically connected with the power line 1A and the signal line 1B, respectively, and the inner mold 2B wraps the connection between the signal terminal 4 and the power terminal 5 and the connection between the power line 1A and the signal line 1B, so as to avoid water vapor infiltration.

Further, the plugging portion 21A is formed by two spacing protrusions arranged at intervals, the signal terminal 4 and the power terminal 5 are respectively arranged in the two spacing protrusions, the positions of the spacing protrusions corresponding to the signal terminal 4 and the power terminal 5 are respectively provided with plugging holes for being conducted with the outside, and the shapes of the spacing protrusions can be adjusted according to the socket in actual fit plugging.

In the actual production process, the terminal assembly and the cable 1 are welded on the fixed plate 3 in sequence through a welding process, then the inner die 2B is arranged at the junction of the cable 1 and the terminal through an injection molding process, the fixed plate 3 is arranged on the plastic shell 2C through corresponding screws 6, and finally the outer die 2A is arranged and wrapped on the outer side of the inner die 2B through the injection molding process.

In this embodiment, the thickness of the fixing plate 3 is 8mm, and increasing the thickness of the fixing plate 3 can significantly improve the stability of the terminal assembly on the fixing plate 3, and avoid the terminal assembly from shaking at will on the fixing plate 3 during the assembly process.

Further, the outer sides of the power line 1A and the signal line 1B are wrapped with insulating layers.

Further, the lower end of the plugging portion 21A is circumferentially provided with a sealing protrusion 23A for tightly fitting with an external socket, and when the plugging portion 21A is plugged into the socket, the sealing protrusion 23A can effectively prevent moisture from entering the inside of the connection harness.

According to the utility model, double-layer wrapping is completed at the junction of the cable 1 and the terminal assembly through the inner die 2B and the outer die 2A, so that the exposed conductive structure at the junction is prevented from being permeated with water vapor, the waterproof sealing performance of the connecting wire harness is improved, the problem of easy short circuit in a humid environment is effectively solved, the structural strength of the plug 2 is ensured through the outer plastic shell 2C, the probability of damage is reduced, and the service life and reliability of the lighting system are improved.

In this embodiment, the plug 2 is designed integrally, so that stability and reliability of the connection harness can be effectively improved. And the heat dissipation performance is improved, the temperature of the wire harness can be kept in a reasonable range in the long-time operation process, and the stability and the reliability of the lighting equipment are improved. Meanwhile, the waterproof and moistureproof performances are improved, so that the wire harness can still work normally in a humid or water immersed environment, and the application range of the connecting wire harness is improved.

Embodiment two:

as shown in fig. 4 to 5, the present embodiment differs from the first embodiment in the signal terminal 4 and the power supply terminal 5.

Embodiment III:

As shown in fig. 6, the difference in this embodiment is that the fixing frame 7 for mating with the plastic housing 2C is mounted at the lower end of the fixing plate 3, and the fixing frame 7 can enhance the structural strength of the plug 2. But the structure is more complex and the assembly difficulty is higher.

While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that the present utility model is not limited thereto, and that the utility model is not limited thereto, but is intended to be limited thereto, when the technical content disclosed above is utilized to make a little change or modification into equivalent embodiments of equivalent changes, but the technical content of the utility model is not deviated from, any simple modification, equivalent changes and modification of the above embodiments are all within the scope of the technical solution of the utility model.

Claims (9)

1. The utility model provides a connection pencil that tunnel illumination used, includes power cord (1A) and signal line (1B), its characterized in that: the power line (1A) and the signal line (1B) are electrically connected with the outside through a plug (2), the plug (2) comprises an outer die (2A), an inner die (2B) arranged in the outer die (2A) and a plastic shell (2C) sleeved on the outer die (2A), one end of the outer die (2A) is integrally formed with an inserting portion (21A) which is matched with the outside, and a terminal assembly which is used for being connected with the power line (1A) and the signal line (1B) is arranged in the inserting portion (21A).

2. The connection harness for tunnel illumination according to claim 1, wherein: and one end of the outer die (2A) far away from the plug-in part (21A) is integrally formed with a reset wire tail (22A).

3. The connection harness for tunnel illumination according to claim 1, wherein: the terminal assembly comprises a fixed plate (3) and a signal terminal (4) and a power terminal (5) which are arranged on the fixed plate (3) in a penetrating mode, and the signal terminal (4) and the power terminal (5) are respectively and electrically connected with the power line (1A) and the signal line (1B).

4. A connection harness for tunnel illumination according to claim 3, characterized in that: the plug-in part (21A) is composed of two spacing bulges arranged at intervals, the signal terminal (4) and the power terminal (5) are respectively arranged in the two spacing bulges, and plug-in holes used for being conducted with the outside are respectively arranged at positions of the spacing bulges corresponding to the signal terminal (4) and the power terminal (5).

5. A connection harness for tunnel illumination according to claim 3, characterized in that: the fixing plate (3) is arranged on the plastic shell (2C) through corresponding screws (6).

6. A connection harness for tunnel illumination according to claim 3, characterized in that: the lower end of the fixing plate (3) is provided with a fixing frame (7) which is matched with the plastic shell (2C).

7. A connection harness for tunnel illumination according to claim 3, characterized in that: the thickness of the fixing plate (3) is 6-10mm.

8. The connection harness for tunnel illumination according to claim 1, wherein: the outer sides of the power line (1A) and the signal line (1B) are wrapped with insulating layers.

9. The connection harness for tunnel illumination according to claim 1, wherein: a sealing protrusion (23A) is arranged around the lower end of the plug-in part (21A).