Vehicle welcome lamp

Abstract

The utility model relates to the technical field of vehicle lamps, in particular to a vehicle welcome lamp which comprises a lamp body base and a light machine projection assembly, the lamp body base is of an arc-shaped structure with an upward opening, the bottom of the lamp body base is concaved downwards to form a groove, and the groove is provided with an open hole allowing projection light of the light machine projection assembly to penetrate out. A projection lens of the light machine projection assembly is arranged in the open hole, a connecting fixing piece protruding outwards is arranged on the lamp body base, a radiator arranged above the groove is connected to the connecting fixing piece, an assembling groove for the light machine projection assembly to be assembled in is formed in the radiator in a concave mode, and the bottom of the light machine projection assembly does not make contact with the bottom face of the groove. A first heat dissipation gap is formed between the radiator and the lamp body base, and an open groove communicated with the interior of the assembling groove is further formed in the radiator. According to the utility model, the heat generated by the light machine projection assembly can be effectively dissipated, so that the welcome lamp can be kept at a stable temperature in a long-time working process, and the service life of the welcome lamp is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a vehicle welcome lamp. Background Art

[0002] As an innovative lighting device used in the automotive field, the vehicle welcome light is often cleverly placed at the bottom of the door or below the rearview mirror. When the driver or passenger is about to open the door and step into the car, the welcome light can be activated immediately, illuminating the ground under their feet with its soft and bright light, thus bringing a convenient lighting experience to the driver and passengers.

[0003] However, in actual application, traditional vehicle welcome lights do not fully take into account the heat dissipation requirements when they are conceived and designed. As shown in a car welcome light design scheme with patent number CN202120292962.4, its design concept focuses more on the reasonable assembly of the structure and the convenience of use, thus ignoring the key factor that the light source module and circuit components will generate a lot of heat energy during continuous work. If there is a lack of an effective heat dissipation mechanism, it will not only cause the gradual decline of component performance, but in severe cases may even cause component damage, thereby affecting the overall service life and reliability of the welcome light. Summary of the invention

[0004] The utility model aims to solve the shortcomings of the prior art vehicle welcome lamp, such as insufficient heat dissipation design, which affects the overall service life and reliability of the welcome lamp, and proposes a vehicle welcome lamp.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A vehicle welcome lamp is designed, comprising a lamp body base 1 and an optical projection assembly 2, the lamp body base 1 is an arc-shaped structure with an opening upward, the bottom of the lamp body base 1 is recessed downward with a groove 13, the groove 13 is provided with an opening 11 for the projection light of the optical projection assembly 2 to pass through, the projection lens 21 of the optical projection assembly 2 is arranged in the opening 11, the lamp body base 1 is provided with an outwardly protruding connecting fixture 12, the connecting fixture 12 is connected to a heat sink 3 arranged above the groove 13, the heat sink 3 is recessed with an assembly groove 31 for the optical projection assembly 2 to be assembled therein, the bottom of the optical projection assembly 2 does not contact the bottom surface of the groove 13, a first heat dissipation gap 5 is provided between the heat sink 3 and the lamp body base 1, and the heat sink 3 is also provided with a groove 32 communicated with the inside of the assembly groove 31.

[0007] Furthermore, the outer wall of the radiator 3 does not contact the lamp body base 1 so that the first heat dissipation gap 5 is formed between the radiator 3 and the lamp body base 1, the bottom of the radiator 3 is provided with an inclined opening 33, the top of the radiator 3 is provided with an upwardly inclined first heat dissipation fin 34, and the groove 32 is provided on the first heat dissipation fin 34.

[0008] Furthermore, the connecting fixture 12 is also fixedly connected to a housing upper cover 4 which is arranged on the groove surface of the assembly groove 31 , a second heat dissipation fin 41 is arranged on the outer wall of the housing upper cover 4 , and an avoidance groove 43 is also recessed downward at the outer upper end of the housing upper cover 4 .

[0009] Furthermore, except for one edge, the inner walls of the outer shell cover 4 do not contact the frames of the groove surface of the assembly groove 31 so that a second heat dissipation gap 6 is formed between the outer shell cover 4 and the assembly groove 31, and the lower end of the outer shell cover 4 does not contact the lamp body base 1 so that a third heat dissipation gap 7 is formed between the outer shell cover 4 and the lamp body base 1.

[0010] Furthermore, the connecting fixing member 12 includes a first protruding connecting member 121 and a second protruding connecting member 122 which are arranged parallel to each other on the lamp body base 1, and the heat sink 3 and the outer shell cover 4 are fastened to the first protruding connecting member 121 and the second protruding connecting member 122 respectively. The first protruding connecting member 121 is provided with a limiting member 123 protruding upward, and the second protruding connecting member 122 is provided with a pin seat 124 protruding upward, and the pin seat 124 is provided with a pin terminal 125 electrically connected to the optical machine projection assembly 2.

[0011] Furthermore, the opening 11 is disposed in the middle of the groove 13 , and the opening 11 has protrusions 14 protruding upward around it for increasing the height of the opening 11 so that the projection lens 21 can be fully embedded in the opening 11 , and the projection lens 21 does not pass through the opening 11 .

[0012] Furthermore, the top of the heat sink 3 protrudes forward to form a step 35 for the front end protrusion 42 of the housing upper cover 4 to be placed thereon.

[0013] The utility model provides a vehicle welcome light, which has the following beneficial effects:

[0014] In the utility model, the application can achieve effective heat dissipation of the heat generated by the optical machine projection assembly through the combined effects of heat conduction, convection and radiation, so as to ensure that the welcome lamp can maintain a stable temperature during long-term operation, thereby extending the service life and improving performance reliability;

[0015] Secondly, in the utility model, the heat generated by the optical projection assembly is dissipated into the surrounding air in a passive heat dissipation manner through the formed air flow channel, thereby further accelerating the heat dissipation and preventing the device from overheating, thereby ensuring stable operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a vehicle welcome light proposed by the utility model;

[0017] Figure 2 This is a schematic structural diagram of a vehicle welcome light proposed by the utility model from another angle;

[0018] Figure 3 for Figure 1 A schematic diagram of an exploded structure of a vehicle welcome light is shown;

[0019] Figure 4 for Figure 2 A schematic diagram of an exploded structure of a vehicle welcome light is shown;

[0020] Figure 5 This is a front view structural diagram of a vehicle welcome light proposed by the utility model;

[0021] Figure 6 for Figure 4 A structural cross-sectional view is shown.

[0022] In the figure: 1. lamp body base; 11. opening; 12. connecting fixing member; 121. first protruding connecting member; 122. second protruding connecting member; 123. limiting member; 124. pin seat; 125. pin terminal; 13. groove; 14. boss; 2. optical machine projection assembly; 21. projection lens; 3. heat sink; 31. assembly groove; 32. slot; 33. inclined opening; 34. first cooling fin; 35. step; 4. outer shell cover; 41. second cooling fin; 42. front end protrusion; 43. avoidance groove; 5. first cooling gap; 6. second cooling gap; 7. third cooling gap. DETAILED DESCRIPTION

[0023] 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 of the embodiments.

[0024] Reference Figure 1-6A vehicle welcome lamp includes a lamp body base 1 and an optical projection assembly 2. The lamp body base 1 is an arc-shaped structure with an opening facing upward. This arc-shaped structure design is not only beautiful, but also can better adapt to the vehicle installation position such as the bottom of the door or under the rearview mirror, while providing sufficient space for internal components. The bottom of the lamp body base 1 is recessed downward with a groove 13, which can reduce the direct contact area between the lamp body base 1 and the radiator 3, further reducing heat conduction, so that the radiator can more effectively dissipate heat to the surrounding environment. The groove 13 is provided with an opening 11 for the projection light of the optical projection assembly 2 to pass through. The projection lens 21 of the optical projection assembly 2 is arranged in the opening 11 to ensure the accurate projection of light and the light projection effect of the welcome lamp. The lamp body base 1 is provided with a connecting fixture 12 protruding outward, and the connecting fixture 12 is connected to a heat sink 3 arranged above the groove 13. The design of the connecting fixture 12 can enhance the reliability of the welcome lamp structure, and also provide support for the formation of the first heat dissipation gap 5, and promote air circulation. The heat sink 3 is recessed with an assembly groove 31 for the optical machine projection assembly 2 to be assembled therein, which can ensure that the optical machine projection assembly 2 is in direct contact with the heat sink 3, which is convenient for heat conduction from the optical machine projection assembly 2 to the heat sink 3, thereby improving the heat conduction efficiency and ensuring that the optical machine assembly is kept at work. Maintain a stable temperature, the bottom of the optical projection assembly 2 does not contact the bottom of the groove 13, which can prevent the heat of the optical projection assembly 2 from being directly transferred to the lamp body base 1 to prevent the lamp body base 1 from overheating. A first heat dissipation gap 5 is provided between the radiator 3 and the lamp body base 1, which allows air circulation to form convection heat dissipation to enhance the heat dissipation effect, prevent heat accumulation, and extend the service life of the component. The radiator 3 is also provided with a groove 32 that communicates with the inside of the assembly groove 31, which can increase the heat dissipation surface area to further optimize the heat dissipation performance and ensure that the welcome lamp remains stable during long-term operation.

[0025] In the utility model, the present application can project light from the projection lens 21 through the optical projection assembly 2, and project it onto the ground or wall through the opening 11 on the lamp body base 1 to form a welcoming pattern or text. At this time, since the bottom of the optical projection assembly 2 is not in contact with the groove 13, the heat generated by the optical projection assembly 2 during operation is mainly transferred to the radiator 3 in close contact with it by heat conduction. The radiator 3 can usually be made of a high thermal conductivity material, such as copper or aluminum, to ensure that the heat can be transferred quickly and evenly. At the same time, the radiator 3 can also dissipate heat to the surrounding air through the slot 32 and the first heat dissipation gap 5, and the air flow channel formed by the first heat dissipation gap 5 can further accelerate the heat dissipation, prevent the device from overheating, and ensure the stable operation of the device. Specifically, when the radiator 3 is heated, the surrounding air is heated and rises, forming a natural convection cycle. This convection helps to take the heat away from the radiator 3 and dissipate it into the surrounding environment. The slot 32 formed on the heat sink 3 is connected to the inside of the assembly slot 31, which further increases the heat dissipation area of ​​the heat sink 3 and allows more air circulation. The design of the slot 32 helps to dissipate the heat inside the assembly slot 31 more quickly, thereby improving the overall heat dissipation efficiency.

[0026] In addition, in the present invention, the heat sink 3 can dissipate the heat generated by the optical projection assembly 2 to the outside through three methods: heat conduction, heat convection, and heat radiation, to ensure stable operation of the device. Specifically, the heat generated by the optical projection assembly 2 can be directly contacted and transferred to the heat sink 3 through heat conduction. At the same time, the first heat dissipation gap 5 and the slot 32 allow natural convection of air, and the heat generated by the optical projection assembly 2 can be dissipated to the external environment through air flow through heat convection. Furthermore, the surface of the heat sink 3 can dissipate the heat to the surrounding space through heat radiation.

[0027] In addition, in the present invention, the present application can achieve efficient heat dissipation through the design of the first heat dissipation gap 5 and the slot 32, ensuring that the optical projection assembly 2 maintains a stable temperature during long-term operation. Moreover, the effective heat dissipation mechanism can prevent the optical projection assembly 2 from being damaged due to overheating, thereby extending the service life of the device.

[0028] Specifically, in this embodiment, the vehicle welcome lamp achieves effective heat dissipation of the heat generated by the light machine projection assembly through the combined effects of heat conduction, convection and radiation. This comprehensive heat dissipation system ensures that the welcome lamp can maintain a stable temperature during long-term operation, thereby extending its service life and improving performance reliability.

[0029] Furthermore, in the present embodiment, the outer side wall of the radiator 3 does not contact the lamp body base 1 so that a first heat dissipation gap 5 is formed between the radiator 3 and the lamp body base 1, which helps air to flow freely between the radiator 3 and the lamp body base 1, thereby enhancing the heat dissipation effect. An inclined opening 33 is provided at the bottom of the radiator 3 to further promote air flow, so that the heat inside the radiator 3 can be more effectively dissipated to the external environment. At the same time, the first heat dissipation gap 5 and the inclined opening 33 between the radiator 3 and the lamp body base 1 can also form an air circulation channel, thereby enhancing the heat dissipation effect, so as to further improve the heat dissipation efficiency. An upwardly inclined first heat dissipation fin 34 is provided at the top of the radiator 3 to increase the heat dissipation area, so that the heat can be dissipated faster through radiation and convection. A groove 32 is provided on the first heat dissipation fin 34, which helps to further increase the heat dissipation area and may improve the heat dissipation efficiency by disrupting the air flow.

[0030] In addition, in the present invention, although the heat sink 3 is not in direct contact with the lamp body base 1, they are firmly connected by the connecting fixture 12, ensuring the stability of the overall structure. Moreover, the design of the inclined opening 33 and the first heat dissipation gap 5 does not sacrifice the strength or stability of the structure.

[0031] In detail, in this embodiment, the inclined opening 33 on the radiator and the first heat dissipation gap 5 allow air to flow freely between the inside and outside of the radiator 3. When the radiator 3 is heated, the surrounding air is heated and rises, forming a natural convection cycle. This convection helps to take the heat away from the radiator 3 and dissipate it into the surrounding environment. Obviously, such a design not only improves the heat dissipation efficiency of the vehicle welcome light, but also ensures the stability and safety of the overall structure. Through the synergistic effect of the heat dissipation system, the heat generated by the optical machine projection assembly is effectively managed and dissipated, thereby ensuring the stable operation and long life of the vehicle welcome light.

[0032] In addition, in this embodiment, the present application can achieve efficient heat dissipation through the synergistic effect of the heat sink 3, the first heat dissipation gap 5, the inclined opening 33 and the first heat dissipation fins 34, so as to ensure that the device maintains stable performance during long-term use. At the same time, the overall design takes into account heat dissipation efficiency, stable structure, easy maintenance, and beautiful and practical appearance, thereby improving the user experience.

[0033] Furthermore, in the present embodiment, the connecting fixing member 12 is also fixedly connected with an outer shell cover 4 which is arranged on the groove surface of the assembly groove 31. The outer shell cover 4 is arranged on the groove surface of the assembly groove 31 to protect the internal components and promote air flow and heat dissipation. A second heat dissipation fin 41 is provided on the outer wall of the outer shell cover 4 to increase the heat dissipation surface area, so as to more efficiently conduct heat from the outer shell cover to the external environment and improve the overall heat dissipation effect. The outer upper end portion of the outer shell cover 4 is also recessed downward to provide an avoidance groove 43, which can cooperate with the limiting member on the door interior panel to ensure that the welcome lamp is firmly installed on the vehicle and avoid loosening due to vehicle vibration. At the same time, it can also better adapt to the vehicle installation position (such as the bottom of the door interior panel or under the rearview mirror).

[0034] In the utility model, the heat generated by the optical projection assembly 2 during operation can be conducted to the assembly groove 31 of the radiator 3. Since the outer shell cover 4 is disposed on the groove surface of the assembly groove 31 and is in direct contact with the radiator 3, the heat can be further conducted to the outer shell cover 4. The second heat dissipation fins 41 on the outer wall of the outer shell cover 4 increase the heat dissipation surface area, and the heat can be dissipated to the external environment through heat conduction and heat radiation.

[0035] In addition, in the present invention, the avoidance groove 43 at the upper end of the outer shell cover 4 can cooperate with the limiter on the door interior panel to ensure that the welcome light is firmly installed on the vehicle. This design not only improves the convenience of installation, but also enhances the stability of the welcome light during vehicle driving.

[0036] Furthermore, in the present embodiment, the inner walls of the outer shell cover 4 are not in contact with the frames of the groove surface of the assembly groove 31 except for one edge, so that a second heat dissipation gap 6 is formed between the outer shell cover 4 and the assembly groove 31, and the lower end of the outer shell cover 4 is not in contact with the lamp body base 1, so that a third heat dissipation gap 7 is formed between the outer shell cover 4 and the lamp body base 1. The design of the second heat dissipation gap 6 and the third heat dissipation gap 7 allows air to flow freely between the radiator 3, the outer shell cover 4 and the lamp body base 1. Such air convection helps to quickly take away the heat from the radiator and dissipate it into the surrounding environment, thereby significantly improving the heat dissipation efficiency. At the same time, by setting a heat dissipation gap between components, the thermal stress caused by temperature changes can be reduced, which helps to extend the service life of the welcome lamp and improve its reliability under different environmental conditions.

[0037] In detail, in this embodiment, the second heat dissipation gap 6 and the third heat dissipation gap 7 serve as heat dissipation channels, allowing air to flow freely between the radiator 3, the housing cover 4 and the lamp body base 1, that is, when the radiator 3 is heated, the surrounding air is heated and rises, forming a natural convection cycle. This convection effect helps to take the heat away from the radiator 3 and dissipate it into the surrounding environment through each heat dissipation gap. Through the combined effect of heat conduction and convection heat dissipation, the vehicle welcome lamp realizes the effective dissipation of the heat generated by the projection assembly of the light machine. This design ensures that the welcome lamp can maintain a stable temperature during long-term operation, thereby extending the service life and improving performance reliability.

[0038] Furthermore, in this embodiment, the connecting fixing member 12 includes a first protruding connecting member 121 and a second protruding connecting member 122 which are arranged parallel to each other on the lamp body base 1, and the radiator 3 and the housing upper cover 4 are fastened to the first protruding connecting member 121 and the second protruding connecting member 122 respectively, and the first protruding connecting member 121 and the second protruding connecting member 122 respectively provide a stable connection point for the radiator 3 and the housing upper cover 4, which can ensure the stability and reliability of the entire welcome lamp structure, reduce the risk of loosening caused by vibration or impact, and at the same time, when maintenance or replacement of parts is required, the relevant components can be more easily disassembled. The first protruding connecting member 121 is provided with an upwardly protruding stopper 123, which can cooperate with the installation slot on the door interior panel to ensure that the welcome lamp is firmly installed on the vehicle, ensure the correct alignment and close contact between the welcome lamp and the vehicle body installation slot, avoid loosening due to vehicle vibration, and better adapt to the vehicle installation position (such as the bottom of the door interior panel or below the rearview mirror). The second protruding connector 122 is provided with a pin seat 124 protruding upward, and the pin seat 124 is provided with a pin terminal 125 electrically connected to the optical-mechanical projection assembly 2 , thereby providing an electrical connection point for the optical-mechanical projection assembly 2 .

[0039] In addition, in the present invention, the design of the connecting fixture 12 allows the radiator 3 and the housing cover 4 to be easily connected and disassembled, which is beneficial to subsequent maintenance and replacement work, so that the various components of the welcome lamp can be manufactured, tested and replaced relatively independently, thereby improving production efficiency and maintainability.

[0040] Furthermore, in the present embodiment, the opening 11 is arranged in the middle of the groove 13, and the opening 11 is surrounded by a boss 14 which is used to increase the height of the opening 11 so that the projection lens 21 can be completely embedded in the opening 11, and the projection lens 21 does not pass through the opening 11. The boss 14 design around the opening 11 increases the height of the opening 11, so that the projection lens 21 can be completely embedded therein without protruding. This design effectively prevents the lens from being damaged by external collision or scratching, and improves the safety and service life of the lens. At the same time, the boss 14 can provide a stable embedding platform for the projection lens 21, which not only ensures that the projection lens 21 can be firmly installed on the lamp body base 1, reducing the risk of loosening or falling off due to vibration or external force, but also plays a certain protective role, which can prevent external objects or impurities from directly contacting the projection lens, reducing the risk of damage to the lens. In addition, the boss 14 can also provide a certain heat dissipation gap between the projection lens 21 and the radiator 3, and this gap allows air circulation, which helps to dissipate the heat generated by the projection lens when it is working more effectively, thereby improving the overall heat dissipation performance.

[0041] Furthermore, in this embodiment, the top of the radiator 3 protrudes forward to form a step 35 for the front end protrusion 42 of the housing upper cover 4 to be placed therein. In this embodiment, the design of the step 35 ensures that there is a stable support point between the housing upper cover 4 and the radiator 3, increases the connection strength between the housing upper cover 4 and the radiator 3, and makes the overall structure more stable. At the same time, it avoids the housing upper cover 4 being directly attached to the radiator 3 as a whole, thereby forming a second heat dissipation gap 6 between the two, and this gap allows air to circulate, thereby enhancing the heat dissipation effect.

[0042] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A vehicle welcome light, characterized in that: The invention comprises a lamp body base (1) and an optical projection assembly (2), wherein the lamp body base (1) is an arc-shaped structure with an opening upward, the bottom of the lamp body base (1) is recessed downward to form a groove (13), the groove (13) is provided with an opening (11) for projection light of the optical projection assembly (2) to pass through, the projection lens (21) of the optical projection assembly (2) is arranged in the opening (11), the lamp body base (1) is provided with a connecting fixing piece (12) protruding outwards, the connecting fixing piece (12) is provided with a connecting fixing piece (12) protruding outwards, and the connecting fixing piece (12) is provided with a connecting fixing piece (12) protruding outwards. The fixing member (12) is connected to a heat sink (3) arranged above the groove (13); the heat sink (3) is provided with a mounting groove (31) for mounting the optical projection assembly (2); the bottom of the optical projection assembly (2) does not contact the bottom surface of the groove (13); a first heat dissipation gap (5) is provided between the heat sink (3) and the lamp body base (1); and the heat sink (3) is further provided with a groove (32) communicating with the inside of the mounting groove (31).

2. The vehicle welcome light according to claim 1, characterized in that: The outer wall of the heat sink (3) does not contact the lamp body base (1) so that the first heat dissipation gap (5) is formed between the heat sink (3) and the lamp body base (1); the bottom of the heat sink (3) is provided with an inclined opening (33); the top of the heat sink (3) is provided with a first heat dissipation fin (34) inclined upward; and the slot (32) is provided on the first heat dissipation fin (34).

3. The vehicle welcome light according to claim 1, characterized in that: The connecting fixture (12) is also fixedly connected to an outer shell upper cover (4) which is arranged on the groove surface of the assembly groove (31); a second heat dissipation fin (41) is provided on the outer wall of the outer shell upper cover (4); and an escape groove (43) is also provided at the outer upper end portion of the outer shell upper cover (4) which is recessed downward.

4. The vehicle welcome light according to claim 3, characterized in that: The inner walls of the outer shell cover (4) on all sides except one side do not contact the frames of the groove surface of the assembly groove (31) on all sides, so that a second heat dissipation gap (6) is formed between the outer shell cover (4) and the assembly groove (31), and the lower end of the outer shell cover (4) does not contact the lamp body base (1), so that a third heat dissipation gap (7) is formed between the outer shell cover (4) and the lamp body base (1).

5. The vehicle welcome light according to claim 4, characterized in that: The connecting fixing member (12) comprises a first protruding connecting member (121) and a second protruding connecting member (122) which are arranged parallel to each other on the lamp body base (1); the heat sink (3) and the housing upper cover (4) are respectively fastened to the first protruding connecting member (121) and the second protruding connecting member (122); the first protruding connecting member (121) is provided with a stopper (123) protruding upwards; the second protruding connecting member (122) is provided with a pin seat (124) protruding upwards; and the pin seat (124) is provided with a pin terminal (125) which is electrically connected to the optical machine projection assembly (2).

6. A vehicle welcome light according to any one of claims 3 to 5, characterized in that: The opening (11) is arranged in the middle of the groove (13), and the opening (11) has a boss (14) protruding upwards around it for increasing the height of the opening (11) so that the projection lens (21) can be fully embedded in the opening (11), and the projection lens (21) does not pass through the opening (11).

7. The vehicle welcome light according to claim 6, characterized in that: The top of the radiator (3) protrudes forward and has a step (35) on which the front end protruding portion (42) of the housing upper cover (4) is mounted.

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