Double-sided signal lamp for vehicle

Abstract

The utility model discloses a double-sided signal lamp for a vehicle, which comprises LED (light-emitting diode) light source circuit boards, a lamp housing and a light-transmitting panel, the lamp housing is a frame with openings on two sides, the two LED light source circuit boards are oppositely arranged in the lamp housing, and the light-transmitting panel is hermetically connected onto the openings of the lamp housing; a sleeve is further arranged on the side wall of the lamp shell, the hollow sleeve is communicated with the interior of the lamp shell, a rubber plug is fixed in the sleeve, a wire penetrating hole is formed in the rubber plug, a wire harness of the LED light source circuit board penetrates out of the wire penetrating hole and then is connected with an external power source, and the inner diameter of the wire penetrating hole is in interference fit with the outer diameter of the wire harness of the LED light source circuit board. According to the signal lamp, the lamp is sealed by changing the lamp shell structure, so that the signal lamp can adapt to operation in severe environments in rainy days.

Description

Technical Field

[0001] This utility model relates to the technical field of lighting fixtures for engineering vehicles, specifically to a double-sided signal light for vehicles. Background Technology

[0002] Currently, most signal lights used on construction vehicles such as forklifts and bulldozers are single-color bulb-type lights. Therefore, different colored signal lights are needed to achieve different warning effects. Additionally, construction vehicles generally require signal lights facing different directions, resulting in a large number of signal lights and high power consumption. Existing signal lights encapsulate the bulb and electronic components in a housing structure, often with the base and lamp cover screwed together. Over time, these bolts loosen, creating gaps between the base and lamp cover. Furthermore, the housing structure includes through-holes for the electronic component wiring harness, but these holes lack proper sealing to isolate the internal and external environments. Construction vehicles operate in complex environments, especially in rainy weather. Rainwater can easily seep into the lamp housing through these through-holes or the gaps between the base and lamp cover, wetting the electronic components. This significantly shortens the signal light's lifespan and can even cause short circuits, affecting the overall circuitry of the construction vehicle. Utility Model Content

[0003] The purpose of this invention is to provide a double-sided signal light for vehicles. This signal light seals the lamp by changing the structure of the lamp housing, enabling the signal light to operate in harsh environments such as rain.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A vehicle dual-sided signal light comprises an LED light source circuit board, a lamp housing, and a light-transmitting panel. The lamp housing is a frame with openings on both sides. Two LED light source circuit boards are arranged opposite each other inside the lamp housing, and the light-transmitting panel is sealed to the openings of the lamp housing. A sleeve is also provided on the side wall of the lamp housing. The sleeve is hollow and communicates with the interior of the lamp housing. A rubber stopper is fixed inside the sleeve. The rubber stopper has a wire hole. The wire harness of the LED light source circuit board passes through the wire hole and is connected to the external power supply. The inner diameter of the wire hole is interference-fitted with the outer diameter of the wire harness of the LED light source circuit board.

[0006] Preferably, it also includes a hollow bracket, one end of which is fixed inside the sleeve, and the other end of which is connected to external mechanical equipment, with the wiring harness of the LED light source circuit board passing through the bracket.

[0007] Preferably, the sleeve includes a sealing section, and a connecting section is provided at the lower end of the sealing section, the connecting section being connected to the bracket; the rubber plug is installed on the lower side of the inner cavity of the sealing section, and the outer diameter of the rubber plug is interference-fitted with the inner diameter of the sleeve.

[0008] Preferably, the inner cavity of the sealing section gradually narrows towards the side away from the connecting section, and the outer circumferential surface of the rubber plug is provided with a protrusion, the outer diameter of the protrusion being interference-fitted with the inner diameter of the sealing section.

[0009] Preferably, the inner diameter of the connecting section is larger than the inner diameter of the sealing section to form a variable diameter shoulder, and the bracket extends into the connecting section and the edge of the bracket contacts and connects with the variable diameter shoulder.

[0010] Preferably, the lower end of the rubber stopper is provided with a plug-in portion, which is inserted into the bracket.

[0011] Preferably, the outer side wall of the connecting section is provided with a longitudinal notch, and mounting holes are provided on both sides of the notch. Fastening bolts are transversely connected in the mounting holes, and a transverse clearance groove is provided on the side wall of the bracket.

[0012] Preferably, a groove is provided on the end face of the side wall of the lamp housing, and a retaining edge conforming to the groove is provided on the edge of the light-transmitting panel. A welding edge is provided circumferentially on the retaining edge, and the welding edge is deformed to weld and fix the retaining edge in the groove.

[0013] Preferably, a fixing flange is provided on the inner side of the lamp housing, and bolt holes and positioning posts are provided on the fixing flange for fixing the LED light source circuit board.

[0014] Preferably, a hook is also provided on the outside of the sleeve.

[0015] The above technical solution has the following advantages compared with the existing technology:

[0016] Compared to the existing technology that uses screws to fix the lamp housing and the light-transmitting panel, this invention welds the lamp housing and the light-transmitting panel together, changing the connection between the lamp housing and the light-transmitting panel from a point connection to a surface connection. This seals the gap between the lamp housing and the light-transmitting panel, preventing water leakage even after long-term use.

[0017] This invention uses a rubber stopper to seal the sleeve on the lamp housing for threading the wire, and the inner diameter of the threading hole is interference-fitted with the outer diameter of the wire harness. In this way, after the wire harness passes through the threading hole, it seals the threading hole, thereby sealing the channel between the inside and outside of the signal light and preventing rainwater from seeping in and causing a short circuit.

[0018] Two LED light source circuit boards are set opposite each other on the lamp housing to enable the signal light to light up from both sides. Using LED light sources instead of traditional bulbs can reduce the power consumption of the signal light, and the size of the signal light is reduced, making it easier to assemble and process. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0021] Figure 3 This is a cross-sectional side view of the lamp housing of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the light-transmitting panel of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the rubber stopper of this utility model;

[0024] Figure 6 This is a cross-sectional side view of the present invention (wireless beam and light-transmitting panel).

[0025] In the diagram, 1 is the LED light source circuit board; 11 is the wiring harness; 2 is the lamp housing; 21 is the groove; 22 is the fixing flange; 23 is the bolt hole; 24 is the positioning post; 3 is the light-transmitting panel; 31 is the retaining edge; 32 is the welding edge; 4 is the sleeve; 41 is the hook; 5 is the sealing section; 6 is the connecting section; 61 is the notch; 62 is the mounting hole; 63 is the fastening bolt; 7 is the rubber plug; 71 is the protrusion; 72 is the insertion part; 8 is the wire hole; 9 is the bracket; 91 is the clearance groove; and 10 is the variable diameter shoulder. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1 to 6As shown, a vehicle dual-sided signal light consists of an LED light source circuit board 1, a lamp housing 2, and a light-transmitting panel 3. The lamp housing 2 is a frame with openings on both sides. A fixing flange 22 is provided on the inner side of the lamp housing 2. Bolt holes 23 and positioning posts 24 for fixing the LED light source circuit board 1 are provided on both sides of the fixing flange 22. Corresponding limiting holes and bolt holes are provided on the LED light source circuit board 1. After the LED light source circuit board 1 is positioned on the fixing flange 22 by the positioning posts 24, the LED light source circuit board 1 is fastened to both sides of the fixing flange 22 with bolts. That is, two LED light source circuit boards 1 are set back to back on the lamp housing 2 to form a bottom shell sub-assembly. A sleeve 4 is provided on the side wall of the lamp housing 2. The sleeve 4 is hollow and communicates with the inside of the lamp housing 2. A rubber plug 7 is sealed and fixed inside the sleeve 4. The rubber plug 7 is made of elastic or rubber material. The plug 7 has a wire hole 8. The wiring harness 11 of the LED light source circuit board passes through the wire hole 8 and connects to the external power supply. The inner diameter of the wire hole 8 is interference-fitted with the outer diameter of the wiring harness 11 of the LED light source circuit board, so that the wiring harness 11 can seal the wire hole 8 without affecting the wiring arrangement. The light-transmitting panel 3 conforms to the shape of the lamp housing 2. The two end faces of the side wall of the lamp housing 2 are respectively provided with grooves 21. The edge of the light-transmitting panel 3 is provided with a retaining edge 31. The retaining edge 31 is inserted into and bonded to the groove 21 to seal and fix the light-transmitting panel 3 and the lamp housing 2 together. In this embodiment, the retaining edge 31 conforms to the shape of the groove 21, and a welding edge 32 conforms to the shape of the groove 21 is provided on the retaining edge 31. The welding edge 32 is placed into the groove 21, and the welding edge 32 is deformed by ultrasonic welding to weld and fix the retaining edge 31 in the groove 21, thereby welding the two light-transmitting panels 3 and the lamp housing 2 together. At this point, the signal light is sealed to isolate the LED light source circuit board 1 from the outside world, preventing rainwater from entering the interior of the lamp housing, thus enabling the signal light to operate in harsh rainy conditions.

[0028] In one embodiment, the device further includes a hollow bracket 9, one end of which is fixed inside the sleeve 4, and the other end of which is connected to external mechanical equipment. The wiring harness 11 of the LED light source circuit board passes through the bracket 9 and is connected to an external power source. The bracket 9 can be configured with different mounting structures to adapt to different vehicle models.

[0029] In one embodiment, the sleeve 4 includes a sealing section 5, the upper side of which is connected to the interior of the lamp housing 2, and the lower side of the sealing section 5 is provided with a connecting section 6, which is connected to the bracket 9. A rubber plug 7 is installed on the lower side of the inner cavity of the sealing section 5, and the outer diameter of the rubber plug 7 is interference-fitted with the inner diameter of the sleeve 4. The bracket 9 or the connecting section 6 prevents the rubber plug 7 from coming out from the lower side. Preferably, the inner cavity of the sealing section 5 gradually narrows away from the connecting section 6, and the outer circumferential side of the rubber plug 7 is provided with a protrusion 71, the outer diameter of which is interference-fitted with the lower side of the inner diameter of the sealing section 5. This way, when the rubber plug 7 moves closer to the lamp housing 2, the sealing effect will be better.

[0030] In a preferred embodiment, the inner diameter of the connecting section 6 is larger than the inner diameter of the sealing section 5, forming a variable diameter shoulder 10. The bracket 9 extends into the connecting section 6, and the edge of the bracket 9 contacts the variable diameter shoulder 10 to prevent the bracket 9 from being over-inserted into the sleeve 4, thus affecting the sealing effect of the rubber stopper 7. Preferably, an insertion part 71 is provided at the lower end of the rubber stopper 7. The insertion part 71 is inserted into the bracket 9, and the edge of the bracket 9 contacts the edge of the rubber stopper 7, thereby achieving a better sealing effect.

[0031] In one embodiment, the outer side wall of the connecting section 6 is provided with a longitudinal notch 61, and mounting holes 62 are provided on both sides of the notch 61. The side wall of the bracket 9 is provided with a transverse clearance groove 91. The fastening bolt 63 is transversely connected in the mounting hole 62 and passes through the clearance sleeve 91. The clearance groove 91 and the fastening bolt 63 cooperate to form a fixed limit on the bracket 9, preventing the bracket from falling off the sleeve 4.

[0032] In one embodiment, a hook 41 is also provided on the outside of the sleeve 4 to facilitate the use of auxiliary materials or tools when suspending the engineering vehicle.

[0033] In one embodiment, the LED light source circuit board 1 is provided with LED beads and other electronic components that work together to light up or turn off the LED beads. Different colors of LED beads can be configured as needed. The LED light source circuit board 1 also integrates a control module, which can control the working mode of the LED beads to flash, light up intermittently, or light up different colors alternately. The circuit connection of the LED light source circuit board is existing technology and will not be described in detail in this utility model.

[0034] In one embodiment, the wire hole 8 is a stepped hole with a larger upper end and a smaller lower end, and the smaller end of the wire hole 8 is interference-fitted with the outer diameter of the wire harness 11, while the larger end of the wire hole 8 is adapted to the outer diameter of the wire harness 11.

[0035] In the above technical solution, two LED light source circuit boards 1 are mounted on the locking and fixing protrusion 22 with screws to form the bottom shell sub-assembly. After one end of the wire harness 11 passes through the sleeve 4 and the wire hole 8, the rubber plug 7 is inserted into the sleeve 4. Then, the two light-transmitting panels 3 are welded into the groove 21 of the bottom shell sub-assembly by ultrasonic welding to deform the welding edge 32, forming a sealed lamp head sub-assembly structure. The bracket 9 is inserted into the sleeve 4, pressing the rubber plug 7 with the bracket 9, and the wire harness 11 is allowed to pass through the bracket 9. Then, the clearance groove 92 is aligned with the mounting hole 62, and the fastening bolt 6 is passed through the mounting hole 62 and tightened to fix it, thus fixing the lamp head sub-assembly to the bracket 9 and completing the sealed assembly of the overall lamp structure.

[0036] The above embodiments are merely illustrative of the concept and implementation of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical solutions without substantial changes are still within the scope of protection.

Claims

1. A vehicle double-sided signal light, comprising an LED light source circuit board, a lamp housing, and a light-transmitting panel, characterized in that, The lamp housing is a frame with openings on both sides. Inside the lamp housing, two LED light source circuit boards are arranged opposite each other, and a light-transmitting panel is sealed to the openings of the lamp housing. A sleeve is also provided on the side wall of the lamp housing. The sleeve is hollow and communicates with the inside of the lamp housing. A rubber stopper is fixed inside the sleeve. The rubber stopper has a wire hole. The wire harness of the LED light source circuit board passes through the wire hole and is connected to the external power supply. The inner diameter of the wire hole is interference-fitted with the outer diameter of the wire harness of the LED light source circuit board.

2. The vehicle dual-sided signal light as described in claim 1, characterized in that, It also includes a hollow bracket, one end of which is fixed inside the sleeve, and the other end of which is connected to external mechanical equipment. The wiring harness of the LED light source circuit board passes through the bracket.

3. The vehicle dual-sided signal light as described in claim 2, characterized in that, The sleeve includes a sealing section, and a connecting section is provided at the lower end of the sealing section. The connecting section is connected to the bracket. The rubber plug is installed on the lower side of the inner cavity of the sealing section, and the outer diameter of the rubber plug is interference-fitted with the inner diameter of the sleeve.

4. The vehicle dual-sided signal light as described in claim 3, characterized in that, The inner cavity of the sealing section gradually narrows towards the side away from the connecting section, and the outer circumferential surface of the rubber plug is provided with a protrusion, the outer diameter of which is interference-fitted with the inner diameter of the sealing section.

5. The vehicle dual-sided signal light as described in claim 3 or 4, characterized in that, The inner diameter of the connecting section is larger than the inner diameter of the sealing section, forming a variable diameter shoulder. The bracket extends into the connecting section and the edge of the bracket contacts and connects with the variable diameter shoulder.

6. The vehicle dual-sided signal light as described in claim 5, characterized in that, The lower end of the rubber stopper is provided with a plug-in part, which is inserted into the bracket.

7. The vehicle dual-sided signal light as described in claim 6, characterized in that, The outer side wall of the connecting section is provided with a longitudinal notch, and mounting holes are provided on both sides of the notch. Fastening bolts are transversely connected in the mounting holes, and transverse clearance grooves are provided on the side wall of the bracket.

8. The vehicle dual-sided signal light as described in claim 1 or 7, characterized in that, A groove is provided on the end face of the side wall of the lamp housing, and a retaining edge conforming to the groove is provided on the edge of the light-transmitting panel. A welding edge is provided circumferentially on the retaining edge, and the welding edge is deformed to weld and fix the retaining edge in the groove.

9. The vehicle dual-sided signal light as described in claim 8, characterized in that, A fixing flange is provided on the inner side of the lamp housing, and bolt holes and positioning posts are provided on the fixing flange for fixing the LED light source circuit board.

10. The vehicle dual-sided signal light as described in claim 1 or 9, characterized in that, A hook is also provided on the outside of the sleeve.

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