A turn signal and an electric vehicle

Abstract

This utility model discloses a turn signal and an electric vehicle, belonging to the field of electric vehicle lighting equipment. It includes a mounting base, a heat dissipation substrate, a light-transmitting lamp cover, and LED beads. The mounting base includes a base plate and an annular boss. The light-transmitting lamp cover is detachably mounted on the side of the annular boss away from the base plate. The heat dissipation substrate is snapped into the light-transmitting lamp cover and is perpendicular to the annular boss. The LED beads include two sets, respectively disposed on two sides of the heat dissipation substrate. It also includes a vehicle body, on which the turn signal is mounted. This turn signal and electric vehicle use a heat dissipation substrate instead of the traditional multi-PCB board design, making the turn signal structure more compact and significantly reducing space occupation, thus meeting the compact installation requirements of electric vehicles. The double-sided heat dissipation substrate has better thermal conductivity than a PCB board, which can quickly dissipate the working heat of the LED beads and improve the lifespan of the lamp.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle lighting equipment technology, specifically to a turn signal and an electric vehicle. Background Technology

[0002] Currently, most traditional turn signals use multiple PCBs as the light source carrier. Due to the limitations of PCB electrical wiring rules, multiple boards must be stacked to achieve the circuit function. This design not only increases the complexity of the lamp structure but also creates potential heat dissipation problems—the thermal conductivity of ordinary PCBs is typically below 0.5W / m². K. When LED chips operate for extended periods, heat can easily accumulate locally on the PCB board. Actual measurement data shows that the junction temperature of the LED chips can rapidly rise above 80℃ during continuous operation, leading to light decay with an average annual luminous flux attenuation rate exceeding 15%. In severe cases, excessively high temperatures can even cause thermal breakdown of the LED chip, increasing the probability of lamp failure by 3-5 times compared to efficient heat dissipation designs, and significantly shortening product lifespan.

[0003] Furthermore, turn signals play a crucial role in the safety features of electric vehicles, and the rationality of their structural design directly affects the product's performance and ease of maintenance. Existing electric vehicle turn signal mounting structures are relatively simple, typically lacking specific design for wiring layout, resulting in messy and tangled internal wiring. This not only increases the difficulty of production and assembly but also makes it difficult to quickly troubleshoot wiring faults during later maintenance. Moreover, their light-transmitting covers are mostly fixed, making it impossible to easily disassemble the cover when the LED bulb is damaged or the heat sink needs repair; the entire turn signal must be replaced, significantly increasing maintenance costs and wasting resources. Utility Model Content

[0004] The purpose of this utility model is to address the problem that existing turn signals have significant shortcomings in terms of maintenance convenience, and to provide a turn signal and an electric vehicle.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a turn signal and electric vehicle, comprising a mounting base, a heat dissipation substrate, a light-transmitting lamp cover, and lamp beads. The mounting base includes a base plate and an annular boss; The light-transmitting lampshade is detachably mounted on the side of the annular boss away from the base plate; The heat dissipation substrate is snapped into the light-transmitting lampshade and is set perpendicular to the annular protrusion; The LED beads comprise two sets, which are respectively disposed on two sides of the heat dissipation substrate.

[0006] Preferably, the annular protrusion has a first wire outlet hole.

[0007] Preferably, the heat dissipation substrate is formed by bonding two separate substrates, and the two sets of LED beads are respectively installed on the opposite sides of the two separate substrates.

[0008] Preferably, the heat dissipation substrate is made of aluminum alloy or copper alloy.

[0009] Preferably, the light-transmitting lampshade is attached to the edge of the annular protrusion away from the base plate, and the annular protrusion is symmetrically provided with two connecting ears on the side away from the base plate. The outer periphery of the light-transmitting lampshade is provided with two H-shaped protrusions. The H-shaped boss and the corresponding connecting lug are detachably connected by a first bolt. The connecting lug is located between two vertical segments of the corresponding H-shaped boss, and a first threaded hole is provided on the side of the connecting lug facing the light-transmitting lampshade. A first through hole coaxial with the first threaded hole is provided on the horizontal segment of the H-shaped boss. The first bolt passes through the first through hole and is threadedly connected to the first threaded hole.

[0010] Preferably, a pad is abutting between the heat dissipation substrate and the mounting base, the pad has a second cable outlet hole, and the pad has two clearance notches, the clearance notches being adapted to the shape of the connecting lug of the annular boss.

[0011] Preferably, the device also includes a decorative element, which is fitted around the outer periphery of the light-transmitting lampshade and detachably connected to the mounting base. The decorative element has two light-transmitting holes, which correspond to the positions of the LED beads on both sides of the heat dissipation substrate.

[0012] Preferably, the decorative element abuts against the edge of the base plate facing the light-transmitting lampshade, and the decorative element is detachably mounted on the annular boss by a second bolt.

[0013] Preferably, both sets of LED beads are fixed to the heat dissipation substrate by adhesive bonding.

[0014] Preferably, the inner wall of the light-transmitting lampshade is provided with two sets of snap-fit ​​plates, the two sets of snap-fit ​​plates are symmetrically arranged about the central axis of the light-transmitting lampshade, and the two sides of the heat dissipation substrate are respectively snapped into the corresponding snap-fit ​​plates.

[0015] An electric vehicle includes a vehicle body and a turn signal as described in any of the preceding claims, the turn signal being mounted on the vehicle body.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This turn signal and electric vehicle uses a heat dissipation substrate instead of the traditional multi-PCB board design, making the turn signal structure more compact and significantly reducing the space occupied, which is suitable for the compact installation requirements of electric vehicles; the thermal conductivity of the double-sided heat dissipation substrate is better than that of the PCB board, which can quickly dissipate the working heat of the lamp beads and improve the service life of the lamp.

[0017] 2. The mounting base of this turn signal and electric vehicle adopts a structure combining a base plate and an annular boss. The annular boss has a first wire outlet hole, which facilitates the wiring layout. This design makes the internal wiring of the turn signal neat and easy to install and maintain. The light-transmitting cover can be detachably installed on the side of the annular boss away from the base plate, which facilitates the subsequent inspection and replacement of internal components such as LED beads and heat dissipation substrate. Compared with the traditional fixed cover, it greatly improves the convenience of maintenance.

[0018] 3. This turn signal and electric vehicle use a single light-transmitting lens, which reduces mold development costs and avoids gaps that may occur when splicing multiple light-transmitting lenses. This reduces the risk of dust and moisture intrusion, improves the waterproof and dustproof rating of the turn signal, and extends the product's service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the exploded structure of this utility model.

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

[0021] Figure 3 This is a schematic diagram of the mounting base in this utility model.

[0022] Figure 4 This is a schematic diagram of the heat dissipation substrate and LED beads of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the light-transmitting lampshade of this utility model. Figure 1 .

[0024] Figure 6 This is a schematic diagram of the structure of the light-transmitting lampshade of this utility model. Figure 2 .

[0025] Figure 7 This is a schematic diagram of the structure of the pad block of this utility model.

[0026] In the diagram: 1. Mounting base; 11. Base plate; 12. Annular boss; 121. Connecting ear; 13. First cable outlet hole; 2. Heat dissipation base plate; 3. Light-transmitting lamp cover; 31. H-shaped boss; 311. Vertical section; 312. Horizontal section; 32. Clip plate; 4. Decorative part; 41. Light-transmitting hole; 5. Lamp bead; 6. Spacer; 61. Second cable outlet hole; 62. Clearance notch; 7. First bolt; 8. Second bolt. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Please refer to Figures 1 to 7 The turn signal and electric vehicle in this embodiment include a mounting base 1, a heat dissipation substrate 2, a light-transmitting lamp cover 3 and a lamp bead 5. The mounting base 1 includes a base plate 11 and an annular boss 12; a first wire outlet hole 13 is provided on the annular boss 12. The light-transmitting lampshade 3 is detachably mounted on the side of the annular boss 12 away from the base plate 11; The heat dissipation substrate 2 is snapped into the light-transmitting lamp cover 3 and is set perpendicular to the annular boss 12; The LED beads 5 consist of two sets, which are respectively disposed on two sides of the heat dissipation substrate 2.

[0029] In the above solution, a heat dissipation substrate 2 is used to replace the traditional multi-PCB board design. The heat dissipation substrate 2 has better thermal conductivity than the PCB board, which can quickly dissipate the working heat of the LED beads 5 and improve the service life of the lamp. The LED beads 5 are mounted on both sides to form a bidirectional light-emitting structure, which has a wider light-emitting angle and more balanced brightness, enhancing the turn signal effect.

[0030] Mounting base 1 adopts a structure combining base plate 11 and annular boss 12. The annular boss 12 is provided with a first wire outlet hole 13, which facilitates the wiring layout. This design makes the internal wiring of the turn signal neat and easy to install and maintain. The light-transmitting cover 3 can be detachably installed on the side of the annular boss 12 away from the base plate 11, which facilitates the subsequent inspection and replacement of internal components such as lamp beads 5 and heat dissipation substrate 2. Compared with the traditional fixed cover 3, it greatly improves the convenience of maintenance.

[0031] It should be noted that the base plate 11 of the mounting base 1 is integrally formed with the annular boss 12, and the lamp bead 5 is an LED lamp bead.

[0032] The heat dissipation substrate 2 is formed by bonding two separate substrates. Two sets of LEDs 5 are respectively installed on the opposite sides of the two separate substrates. The two separate substrates can be independently printed with circuits and have the LEDs 5 mounted, avoiding interlayer interference caused by double-sided wiring. The separate structure increases the contact area between the heat dissipation substrate 2 and the air, which can improve heat dissipation efficiency.

[0033] The heat dissipation substrate 2 is made of aluminum alloy or copper alloy.

[0034] In the above solution, the heat dissipation substrate 2 is made of aluminum alloy or copper alloy. Aluminum alloy has good thermal conductivity and lightweight advantages, while copper alloy provides a higher thermal conductivity. Different materials can be selected according to actual needs to ensure heat dissipation performance while meeting the weight and cost requirements of the turn signal.

[0035] Please refer to Figure 3 , Figure 5 and Figure 6 The light-transmitting lampshade 3 is attached to the edge of the annular boss 12 away from the bottom plate 11. The annular boss 12 is symmetrically provided with two connecting ears 121 on the side away from the bottom plate 11. The outer periphery of the light-transmitting lampshade 3 is provided with two H-shaped bosses 31. The H-shaped boss 31 and the corresponding connecting ear 121 are detachably connected by the first bolt 7. The connecting ear 121 is located between the two vertical sections 311 of the corresponding H-shaped boss 31, and the connecting ear 121 has a first threaded hole on the side facing the light-transmitting lamp cover 3. The horizontal section 312 of the H-shaped boss 31 has a first through hole coaxial with the first threaded hole. The first bolt 7 passes through the first through hole and is threadedly connected to the first threaded hole.

[0036] In the above scheme, the light-transmitting lamp cover 3 is detachable and installable through the bolt connection structure between the H-shaped boss and the connecting ear 121. When the lamp bead 5 or the heat dissipation substrate 2 is damaged, the staff can directly disassemble the light-transmitting lamp cover 3 for repair and replacement without disassembling the entire lamp, which is convenient. The design of the two vertical sections 311 of the H-shaped boss wrapping around the connecting ear 121 can enhance the vibration resistance and stability of the connection structure.

[0037] Please refer to Figure 1 and Figure 7 A pad 6 abuts against the heat sink substrate 2 and the mounting base 1. The pad 6 has a second wire outlet hole 61. The pad 6 can raise the heat sink substrate 2 to optimize the assembly gap between it and the mounting base 1 and improve the stability of the overall structure. The first wire hole of the pad 6 and the second wire hole of the mounting base 1 can assist in the arrangement and threading of wires. The wires are used to power the LED beads 5. The pad 6 has two clearance notches 62. The clearance notches 62 are adapted to the shape of the connecting ears 121 of the annular boss 12. During assembly, the connecting ears 121 are inserted into the clearance notches 62. The contour of the connecting ears 121 forms a circumferential limit on the pad 6, effectively preventing the pad 6 from rotating between the mounting base 1 and the heat sink substrate 2.

[0038] Please refer to Figure 1 and Figure 2 It also includes a decorative part 4, which is fitted around the outer periphery of the light-transmitting lamp cover 3 and is detachably connected to the mounting base 1. The decorative part 4 has two light-transmitting holes 41, which correspond to the positions of the lamp beads 5 on both sides of the heat dissipation substrate 2.

[0039] In the above scheme, two symmetrically distributed light-transmitting holes 41 are provided on the decorative part 4, which correspond to the positions of the lamp beads 5 on both sides of the heat dissipation substrate 2. This allows the light to be emitted evenly, ensuring the symmetry and recognizability of the turn signal, while also improving the regularity of the lamp's appearance. The detachable connection design between the decorative part 4 and the mounting base 1 makes it easy to replace different styles of decorative parts 4 to meet the personalized needs of users.

[0040] The decorative piece 4 abuts against the edge of the base plate 11 facing the light-transmitting lampshade 3, and the decorative piece 4 is detachably mounted on the annular boss 12 by the second bolt 8.

[0041] In the above scheme, the decorative part 4 is detachably installed on the annular boss 12 by the second bolt 8, which not only fixes the outer periphery of the light-transmitting lamp cover 3 and improves the overall sealing of the lamp, but also facilitates disassembly and maintenance. At the same time, the decorative part 4 can cover the internal structure and beautify the appearance.

[0042] Please refer to Figure 1 and Figure 4 Both sets of LED beads 5 are fixed to the heat dissipation substrate 2 by adhesive. Fixing the LED beads 5 to both sides of the heat dissipation substrate 2 by adhesive simplifies the installation process, improves production efficiency, and ensures that the LED beads 5 are tightly attached to the heat dissipation substrate 2, thus optimizing the heat conduction path.

[0043] For example, a double-sided heat dissipation substrate 2 with a thickness of 1.2mm is selected, and LED beads 5 are mounted on both sides using SMT process. The LED beads 5 are fixed by thermally conductive silicone to ensure unobstructed heat dissipation path.

[0044] Please refer to Figure 1 and Figure 6 The inner wall of the light-transmitting lampshade 3 is provided with two sets of snap-fit ​​plates 32. The two sets of snap-fit ​​plates 32 are symmetrically arranged about the central axis of the light-transmitting lampshade 3, and the two sides of the heat dissipation substrate 2 are respectively snapped into the corresponding snap-fit ​​plates 32. The symmetrical snap-fit ​​plates 32 on the inner wall of the light-transmitting lampshade 3, and the snap-fit ​​plates 32 on both sides of the heat dissipation substrate 2, can precisely limit the installation position and angle of the heat dissipation substrate 2, ensure the consistency of the light emission direction of the lamp beads 5 on both sides, and enhance the installation stability of the heat dissipation substrate 2 in the lamp.

[0045] An electric vehicle includes a vehicle body and a turn signal of any one of the above, the turn signal being mounted on the vehicle body; the turn signal can significantly improve the visibility and reliability of the electric vehicle's turn signals, while reducing the size of the lamp body and maintenance costs, thereby improving the overall safety and user experience of the electric vehicle.

[0046] Repair method: When it is necessary to replace the light-transmitting lampshade 3, first use a Phillips screwdriver to unscrew the second bolt 8 connecting the decorative part 4 and the annular boss 12, and remove the decorative part 4; then unscrew the first bolt 7 connecting the outer H-shaped boss 31 of the light-transmitting lampshade 3 and the connecting ear 121, remove the light-transmitting lampshade 3 from the edge of the annular boss 12, and replace it with a new light-transmitting lampshade 3. When repairs are required for the LED chip 5 or the heat sink 2, the entire heat sink 2 and LED chip 5 must be replaced. After removing the lamp cover, the heat sink 2 and LED chip 5 are exposed. Disconnect the wires from the LED chip 5, then pull the heat sink 2 out from the inner retaining plate 32 of the light-transmitting lamp cover 3. Replace the heat sink 2 and LED chip 5 with new ones, and reset the pad 6. Reconnect the wires to the LED chip 5. Finally, reinstall the light-transmitting lamp cover 3 and decorative piece 4, and tighten the bolts.

[0047] During maintenance, ensure that the heat dissipation base plate 2 is inserted vertically into the connecting plate 32, and that the bolt holes of the H-shaped boss 31 and the connecting ear 121 are coaxially aligned. Use thermally conductive silicone to attach the LED beads 5 to ensure heat dissipation. The light-transmitting lamp cover 3 and the edge of the annular boss 12 should fit tightly to avoid affecting waterproof and dustproof performance due to assembly gaps, ensuring that the lamp structure is stable and functions normally after maintenance.

[0048] 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.

Claims

1. A turn signal, comprising a mounting base, a heat dissipation substrate, a light-transmitting lamp cover, and an LED, characterized in that: The mounting base includes a base plate and an annular boss; The light-transmitting lampshade is detachably mounted on the side of the annular boss away from the base plate; The heat dissipation substrate is snapped into the light-transmitting lampshade and is set perpendicular to the annular protrusion; The LED beads comprise two sets, which are respectively disposed on two sides of the heat dissipation substrate.

2. The turn signal according to claim 1, characterized in that, The annular protrusion has a first wire outlet hole.

3. The turn signal according to claim 1, characterized in that, The heat dissipation substrate is formed by bonding two separate substrates, and the two sets of LED beads are respectively installed on the opposite sides of the two separate substrates.

4. The turn signal according to claim 1, characterized in that, The heat dissipation substrate is made of aluminum alloy or copper alloy.

5. The turn signal according to claim 1, characterized in that, The light-transmitting lampshade is attached to the edge of the annular protrusion away from the base plate. The annular protrusion is symmetrically provided with two connecting ears on the side away from the base plate. The outer periphery of the light-transmitting lampshade is provided with two H-shaped protrusions. The H-shaped boss and the corresponding connecting lug are detachably connected by a first bolt. The connecting lug is located between two vertical segments of the corresponding H-shaped boss, and a first threaded hole is provided on the side of the connecting lug facing the light-transmitting lampshade. A first through hole coaxial with the first threaded hole is provided on the horizontal segment of the H-shaped boss. The first bolt passes through the first through hole and is threadedly connected to the first threaded hole.

6. The turn signal according to claim 5, characterized in that, A pad is abutting between the heat dissipation substrate and the mounting base. The pad has a second cable outlet hole and two clearance notches, which are adapted to the shape of the connecting lug of the annular boss.

7. The turn signal according to claim 1, characterized in that, It also includes a decorative component, which is fitted around the outer periphery of the light-transmitting lampshade and detachably connected to the mounting base. The decorative component has two light-transmitting holes, which correspond to the positions of the lamp beads on both sides of the heat dissipation substrate.

8. The turn signal according to claim 7, characterized in that, The decorative element abuts against the edge of the base plate facing the light-transmitting lampshade, and the decorative element is detachably mounted on the annular boss by a second bolt.

9. The turn signal according to claim 1, characterized in that, Both sets of LED beads are fixed to the heat dissipation substrate by adhesive bonding.

10. The turn signal according to claim 1, characterized in that, The inner wall of the light-transmitting lampshade is provided with two sets of snap-fit ​​plates. The two sets of snap-fit ​​plates are symmetrically arranged about the central axis of the light-transmitting lampshade. The two sides of the heat dissipation substrate are respectively snapped into the corresponding snap-fit ​​plates.

11. An electric vehicle, characterized in that, It includes a vehicle body and a turn signal as described in any one of claims 1 to 10, the turn signal being mounted on the vehicle body.

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