Fog lamp and vehicle

Abstract

This application provides a fog light and a vehicle, relating to the field of automotive lighting technology. The fog light includes: a heat dissipation lamp housing with a receiving groove, wherein at least one heat dissipation column is integrally formed within the receiving groove, and the heat dissipation column has a heat dissipation surface; a lamp cover connected to the heat dissipation lamp housing to jointly enclose a receiving cavity with the receiving groove; and a light source assembly disposed within the receiving cavity, the light source assembly including a circuit board connected to the heat dissipation lamp housing and abutting against the heat dissipation surface. This eliminates the need for an additional radiator, and the heat dissipation lamp housing does not have any openings for connection to a radiator. The heat dissipation lamp housing itself has the dual functions of structural support and heat dissipation. Consequently, there is no sealing problem between the radiator and the heat dissipation lamp housing, which helps improve the fog light's waterproof and dustproof performance, thereby improving its service life and reliability. Furthermore, it also helps reduce the cost of the fog light and improve assembly efficiency.

Description

Technical Field

[0001] This application relates to the field of automotive lighting technology, and in particular to a fog light and a vehicle. Background Technology

[0002] Fog lights, as a supplementary lighting source used under special driving conditions, are mainly used to supplement the headlight illumination area in rain, fog, or low lighting conditions, increase the light transmission distance, thereby improving the driver's field of vision and enhancing the perception distance of people outside the vehicle, thus improving the overall vehicle safety.

[0003] Because fog lights require high brightness, they typically use high-luminous-flux LED (Light Emitting Diode) particles, which results in very high heat inside the light.

[0004] One type of fog light in the related technology has a large external heat sink mounted on the lamp housing. The heat sink is used to cool the circuit board and electrical components to ensure that the fog light functions properly.

[0005] However, the above structure is relatively complex, requiring the installation of two components: the lamp housing and the heat sink. After installation, the heat sink and the lamp housing may still have sealing problems, which will affect the service life and reliability of the fog light. Utility Model Content

[0006] This application provides a fog light and vehicle, aiming to improve the problem of low service life and reliability of fog lights in related technologies.

[0007] The specific technical solution is as follows: In a first aspect, embodiments of this application propose a fog light, comprising: a heat dissipation lamp housing, the heat dissipation lamp housing having a receiving groove, at least one heat dissipation column integrally formed in the receiving groove, the heat dissipation column having a heat dissipation surface; a lamp cover connected to the heat dissipation lamp housing to jointly enclose a receiving cavity with the receiving groove; and a light source assembly disposed in the receiving cavity, the light source assembly including a circuit board, the circuit board being connected to the heat dissipation lamp housing and abutting against the heat dissipation surface.

[0008] The fog light of this embodiment has a heat dissipation column inside the heat dissipation lamp housing for contacting the circuit board. After the circuit board is fixed to the heat dissipation lamp housing, its heat can be diffused through the heat dissipation column to the entire heat dissipation lamp housing, and then dissipated through the heat dissipation lamp housing. This eliminates the need for an additional heat sink, and there are no openings on the heat dissipation lamp housing for connection to a heat sink. The heat dissipation lamp housing itself has the dual functions of structural support and heat dissipation. Therefore, there is no sealing problem between the heat sink and the heat dissipation lamp housing, which helps improve the waterproof and dustproof performance of the fog light, and consequently improves its service life and reliability.

[0009] Furthermore, using the heat dissipation lamp housing as a heat sink can save the cost and space of setting up a heat sink, which also helps to reduce the cost of fog lights, while improving the structural compactness of fog lights, reducing their size, improving assembly efficiency, and achieving the requirements of lightweighting and miniaturization.

[0010] Furthermore, since the radiator is integrated with the housing, the fog light's appearance can be made simpler, which also helps to increase the freedom and aesthetics of fog light design.

[0011] In some embodiments, the light source assembly further includes a light-emitting unit and a lens. The light-emitting unit is connected to the circuit board and is located on the side of the circuit board away from the heat sink. Along the thickness direction of the circuit board, the light-emitting unit is at least partially opposite to the heat sink surface. The lens is disposed in the receiving cavity and is located on the light-emitting side of the light-emitting unit.

[0012] In this way, the heat generated by the light-emitting unit can be transferred to the heat dissipation surface through the shortest distance, which helps to improve the efficiency of heat transfer, thereby improving the heat dissipation effect of the heat dissipation lamp housing, and thus helping to improve the service life and reliability of the fog light.

[0013] In some embodiments, there are multiple heat sinks, and the circuit board abuts against the heat dissipation surfaces of the multiple heat sinks; The plurality of heat dissipation pillars include a central heat dissipation pillar and a plurality of edge heat dissipation pillars spaced apart around the central heat dissipation pillar. Along the thickness direction of the circuit board, the light-emitting unit is at least partially opposite to the heat dissipation surface of the central heat dissipation pillar.

[0014] This design offers several advantages. First, it creates a central main heat dissipation system combined with edge auxiliary heat dissipation, effectively cooling the entire circuit board and rapidly dispersing heat throughout the entire structure of the lamp housing. This significantly improves the heat dissipation efficiency of the lamp housing, thereby extending the lifespan and reliability of the fog light. Second, multiple heat dissipation pillars substantially increase the heat dissipation area, further enhancing the lamp housing's cooling performance and ensuring the fog light's normal operation. Furthermore, the multiple heat dissipation pillars provide multi-point support for the circuit board, reducing the probability of overheating and deformation, and improving the convenience and reliability of circuit board installation and positioning.

[0015] In some embodiments, the area of ​​the heat dissipation surface of the central heat dissipation column is greater than the area of ​​the heat dissipation surface of the edge heat dissipation column.

[0016] By differentiating the area of ​​the heat dissipation surface, the heat dissipation surface and the heat generation can be matched. This not only meets the heat dissipation needs of different areas but also reduces material waste and space occupation caused by using large-area heat dissipation pillars, thus reducing the cost and weight of fog lights. In addition, since the heat dissipation surface area of ​​the edge heat dissipation pillars is smaller, it will not occupy too much space on the circuit board, thereby improving the convenience of circuit board design.

[0017] In some embodiments, a weight-reduction cavity is provided on the side of the heat sink away from the circuit board.

[0018] This design prevents heat from accumulating inside the heat dissipation column, allowing heat to be quickly transferred to other areas of the heat dissipation lamp housing, thus improving the heat dissipation efficiency of the lamp housing. Secondly, it saves materials, reducing both weight and cost.

[0019] In some embodiments, the side of the heat sink housing opposite to the receiving groove is integrally formed with a plurality of heat dissipation fins.

[0020] This design increases the heat dissipation area, which in turn improves the heat dissipation effect of the lamp housing, thereby further improving the lifespan and reliability of the fog light.

[0021] In some embodiments, the sidewall of the heat dissipation column is integrally formed with a plurality of heat dissipation fins along the circumferential direction.

[0022] This design increases the heat dissipation area, which in turn improves the heat dissipation effect of the lamp housing, thereby further improving the lifespan and reliability of the fog light.

[0023] In some embodiments, the fog light further includes a decorative frame and a dimming element. The decorative frame is located between the lens and the lamp cover and is detachably connected to the heat dissipation lamp housing. The decorative frame has a clearance opening for the lens to be exposed. The lens is rotatably connected to the decorative frame. The dimming element abuts against the lens to adjust the installation angle of the lens. The heat dissipation lamp housing is provided with a first mounting hole through which the dimming element passes.

[0024] This design serves several purposes. First, the decorative frame conceals the gap between the lens and the heat sink housing, as well as internal structures such as wiring, thus enhancing the fog light's aesthetics. Second, the decorative frame acts as a rotating support for the lens, providing a structural basis for adjusting the angle of the dimming mechanism, thereby improving the reliability of the fog light's dimming. Furthermore, the ability to dim the fog light from the outside of the heat sink housing further improves the convenience and efficiency of dimming.

[0025] In some embodiments, a terminal portion is provided on the side surface of the circuit board near the heat dissipation surface, and the terminal portion includes wiring terminals; The heat dissipation lamp housing is provided with a plug hole for the wiring terminal to pass through, and the side of the heat dissipation lamp housing opposite to the circuit board is provided with a connecting part surrounding the plug hole.

[0026] The heat dissipation lamp housing also integrates a connector. This eliminates the need for a separate connector on the outside of the heat dissipation lamp housing to connect to the wiring terminals of the terminal section, thereby facilitating further functional integration of the heat dissipation lamp housing, reducing costs and the number of parts, and improving the assembly efficiency of the fog light.

[0027] In some embodiments, the heat dissipation lamp housing is provided with a vent that communicates with the receiving cavity, and the vent is covered with a breathable membrane.

[0028] By incorporating vents and a breathable membrane, the fog light allows for bidirectional airflow between the inside and outside, balancing air pressure in real time. This helps to mitigate the problem of housing cracking and improves the lifespan and reliability of the fog light.

[0029] In some embodiments, the edge of the heat dissipation lamp housing is integrally formed with a plurality of mounting feet along the circumferential direction, at least a portion of the mounting feet is plate-shaped, and the mounting feet are provided with a second mounting hole.

[0030] On the one hand, there is no need to purchase separate mounting brackets, which facilitates further functional integration of the heat dissipation lamp housing, reduces costs and the number of parts, and improves the assembly efficiency of fog lights. On the other hand, the mounting feet are plate-shaped, which can be similar to heat dissipation fins, increasing the contact area between the heat dissipation lamp housing and the air, thereby further improving the heat dissipation effect of the heat dissipation lamp housing.

[0031] Secondly, embodiments of this application provide a vehicle including the fog lights described in the first aspect.

[0032] The vehicle in this embodiment is based on the same inventive concept as the fog light in the above embodiment. Therefore, the vehicle can obtain the beneficial effects of the fog light in the corresponding embodiment. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a fog light provided in an embodiment of this application; Figure 2 This is a partially exploded view of a fog light provided in an embodiment of this application; Figure 3 This is a partially exploded view of a fog light structure provided in an embodiment of this application; Figure 4 for Figure 3 The diagram shows a structural schematic from another perspective; Figure 5 This is a schematic diagram of the heat dissipation housing of a fog lamp provided in an embodiment of this application.

[0034] The annotations in the attached figures are explained as follows: 100. Fog lights; 110. Heat dissipation lamp housing; 111. Receiving groove; 112. Heat dissipation column; 1121. Heat dissipation surface; 1122. Weight reduction cavity; 113. First mounting hole; 114. Insertion hole; 115. Connecting part; 116. Vent; 117. Breathable membrane; 118. Mounting leg; 1181. Second mounting hole. 120. Lampshade; 130. Light source assembly; 131. Circuit board; 132. Light-emitting unit; 133. Lens; 134. Terminal section; 1341. Wiring terminal. 140. Decorative frame; 141. Clearance opening; 150. Dimming components. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0036] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] In related technologies, a large external heat sink is installed on the fog light housing. The heat sink is used to cool the circuit board and electrical components to ensure that the fog light functions properly.

[0040] However, the above structure is relatively complex, requiring the installation of two components: the lamp housing and the heat sink. After installation, the heat sink and the lamp housing may still have sealing problems, which will affect the service life and reliability of the fog light.

[0041] Based on the above problems, this application proposes a fog light and a vehicle, aiming to improve the problem of low service life and reliability of fog lights caused by the installation of radiators.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, in a first aspect, this application provides a fog light 100. The fog light 100 includes a heat dissipation lamp housing 110, a lamp cover 120, and a light source assembly 130. The heat dissipation lamp housing 110 is provided with a receiving groove 111, and at least one heat dissipation column 112 is integrally formed in the receiving groove 111. The heat dissipation column 112 has a heat dissipation surface 1121. The lamp cover 120 is connected to the heat dissipation lamp housing 110 to form a receiving cavity together with the receiving groove 111. The light source assembly 130 is disposed in the receiving cavity. The light source assembly 130 includes a circuit board 131, which is connected to the heat dissipation lamp housing 110 and abuts against the heat dissipation surface 1121.

[0043] The fog light 100 of this embodiment includes a heat dissipation lamp housing 110, a lamp cover 120, and a light source assembly 130. The heat dissipation lamp housing 110 refers to a lamp housing capable of heat dissipation. The heat dissipation lamp housing 110 serves as part of the fog light 100's outer shell and also integrates heat dissipation functionality. The heat dissipation lamp housing 110 can be made of materials with good thermal conductivity, such as aluminum, aluminum alloy, or copper alloy, through processes such as die casting or extrusion, and it itself functions as a heat sink.

[0044] The heat dissipation lamp housing 110 has a receiving groove 111, and the lamp cover 120 covers the opening of the receiving groove 111. Together, they form the outer shell of the fog light 100, and their interiors form a receiving cavity for accommodating the light source assembly 130. The lamp cover 120 can be sealed to the heat dissipation lamp housing 110 by means of adhesive bonding, fastener connection with sealing components, potting encapsulation, etc. This helps to reduce the probability of external moisture and dust entering the receiving cavity and improves the sealing performance of the fog light 100. The lamp cover 120 can be made of high light transmittance materials such as polycarbonate (PC), acrylic, glass, etc.

[0045] The light source assembly 130 emits light, enabling the fog light 100 to emit light to meet the user's needs. The light source assembly 130 includes a circuit board 131 and a light-emitting unit 132 connected to the circuit board 131. The light-emitting unit 132 can be an LED chip. The circuit board 131 receives electrical energy and drives the light-emitting unit 132 to emit light. The light source assembly 130 is a heat source within the fog light 100.

[0046] At least one heat dissipation column 112 is formed within the receiving groove 111 of the heat dissipation lamp housing 110, and the heat dissipation column 112 is part of the heat dissipation lamp housing 110. A circuit board 131 is connected to the heat dissipation lamp housing 110 and abuts against the heat dissipation surface 1121 of the heat dissipation column 112, which is the surface of the heat dissipation column 112 used to abut against the circuit board 131. This constructs a heat dissipation channel for the fog light 100. Optionally, the circuit board 131 can be fixed to the heat dissipation lamp housing 110 using fasteners such as screws.

[0047] Specifically, the heat generated by the light-emitting unit 132 during operation is transferred to the circuit board 131, and the heat generated by other electrical components on the circuit board 131 during operation also accumulates on the circuit board 131. The circuit board 131 abuts against the heat dissipation surface 1121 of the heat sink 112, allowing the heat from the circuit board 131 to be transferred through the heat dissipation surface 1121 to the heat sink 112, and then from the heat sink 112 to the entire heat dissipation lamp housing 110. Finally, the heat dissipation lamp housing 110 dissipates the heat into the external space. Optionally, a thermally conductive material such as thermal grease can be filled between the heat dissipation surface 1121 and the circuit board 131, thereby further improving the heat transfer efficiency from the circuit board 131 to the heat sink 112.

[0048] The fog light 100 of this embodiment has a heat dissipation column 112 inside the heat dissipation lamp housing 110 for abutting against the circuit board 131. After the circuit board 131 is fixed to the heat dissipation lamp housing 110, its heat can be diffused to the entire heat dissipation lamp housing 110 through the heat dissipation column 112, and then dissipated through the heat dissipation lamp housing 110. In this way, there is no need to arrange an additional heat sink, and there is no opening on the heat dissipation lamp housing 110 for connecting to a heat sink. The heat dissipation lamp housing 110 itself has the dual functions of structural support and heat dissipation. Therefore, there is no sealing problem between the heat sink and the heat dissipation lamp housing 110, which helps to improve the waterproof and dustproof performance of the fog light 100, and thus helps to improve the service life and reliability of the fog light 100.

[0049] Furthermore, by using the heat dissipation lamp housing 110 as a heat sink, the cost and space required for setting up a heat sink can be saved, which also helps to reduce the cost of the fog light 100, while improving the structural compactness of the fog light 100, reducing its size, improving assembly efficiency, and achieving the requirements of lightweighting and miniaturization.

[0050] Furthermore, since the radiator is integrated with the housing, the appearance of the fog light 100 can be made simpler, which also helps to improve the freedom and aesthetics of the fog light 100's appearance design.

[0051] like Figure 2 and Figure 3 As shown, in some embodiments, the light source assembly 130 further includes a light-emitting unit 132 and a lens 133. The light-emitting unit 132 is connected to the circuit board 131 and is located on the side of the circuit board 131 away from the heat sink 112. Along the thickness direction of the circuit board 131, the light-emitting unit 132 is at least partially opposite to the heat sink 1121. The lens 133 is disposed in the receiving cavity and is located on the light-emitting side of the light-emitting unit 132.

[0052] Lens 133 is used to focus and shape the divergent light beam emitted from light-emitting unit 132 to form a light spot that meets the relevant regulations for fog lights. Lens 133 can be, for example, a convex lens, which can focus the divergent light beam to increase the brightness and projection distance of fog light 100, meeting the usage requirements of fog light 100 in low visibility scenarios.

[0053] Along the thickness direction of the circuit board 131, at least a portion of the light-emitting unit 132 is opposite to the heat dissipation surface 1121. In this way, the heat generated by the light-emitting unit 132 can be transferred to the heat dissipation surface 1121 through the shortest distance, which helps to improve the efficiency of heat transfer, thereby improving the heat dissipation effect of the heat dissipation lamp housing 110, and further improving the service life and reliability of the fog light 100.

[0054] In some embodiments, there are multiple heat dissipation pillars 112, and the circuit board 131 abuts against the heat dissipation surface 1121 of the multiple heat dissipation pillars 112. The multiple heat dissipation pillars 112 include a central heat dissipation pillar (not shown in the figure) and multiple edge heat dissipation pillars (not shown in the figure) arranged at intervals around the central heat dissipation pillar. Along the thickness direction of the circuit board 131, the light-emitting unit 132 is at least partially opposite to the heat dissipation surface 1121 of the central heat dissipation pillar.

[0055] In this embodiment, there are multiple heat dissipation pillars 112, and the multiple heat dissipation pillars 112 are divided into a central heat dissipation pillar and multiple edge heat dissipation pillars. Thus, each heat dissipation pillar 112 is in contact with the circuit board 131.

[0056] The light-emitting unit 132 is the main heat source, and its position directly corresponds to the heat dissipation surface 1121 of the central heat dissipation column. This minimizes the heat transfer path, allowing for rapid removal of core heat and mitigating localized high temperatures. Other functional components on the circuit board 131 also generate a small amount of heat. These heats can be dissipated from other areas of the circuit board 131 by multiple edge heat dissipation columns. This creates a heat dissipation path combining central main heat dissipation with edge auxiliary heat dissipation, cooling the entire area of ​​the circuit board 131 and rapidly dissipating heat throughout the entire structure of the heat dissipation lamp housing 110. This further improves the heat dissipation effect of the heat dissipation lamp housing 110, thereby enhancing the lifespan and reliability of the fog light 100.

[0057] Secondly, the multiple heat dissipation columns 112 can also significantly increase the heat dissipation area, which is conducive to further improving the heat dissipation effect of the heat dissipation lamp housing 110 and ensuring the normal operation of the fog light 100.

[0058] In addition, the circuit board 131 abuts against the heat dissipation surfaces 1121 of the multiple heat dissipation pillars 112. The multiple heat dissipation pillars 112 can provide multi-point support for the circuit board 131, which not only helps to reduce the probability of the circuit board 131 overheating and deforming, but also helps to improve the convenience and reliability of the installation and positioning of the circuit board 131.

[0059] In some embodiments, the area of ​​the heat dissipation surface 1121 of the central heat dissipation column is larger than the area of ​​the heat dissipation surface 1121 of the edge heat dissipation column.

[0060] The central heat sink has a larger heat dissipation surface 1121, corresponding to the core heat-generating area on the circuit board 131 where the light-emitting unit 132 is located. The edge heat sinks have smaller heat dissipation surfaces 1121, corresponding to the lower-heating areas at the edges of the circuit board 131. This differentiated design of the heat dissipation surface 1121 area allows for a match between the heat dissipation surface 1121 and the heat generation, meeting the heat dissipation needs of different areas and reducing material waste and space occupation caused by using large-area heat sinks 112, thus lowering the cost and weight of the fog light 100. Furthermore, the smaller area of ​​the edge heat sinks' heat dissipation surfaces 1121 minimizes the space occupied by the circuit board 131, thereby improving the ease of circuit design on the circuit board 131.

[0061] like Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, a weight-reducing cavity 1122 is provided on the side of the heat dissipation column 112 away from the circuit board 131.

[0062] The heat dissipation column 112 and the heat dissipation lamp housing 110 are integrally formed, and a weight reduction cavity 1122 is provided on the side of the heat dissipation column 112 away from the circuit board 131. In other words, the heat dissipation column 112 is equivalent to a hollow protrusion structure formed by the indentation of the surface of the heat dissipation lamp housing 110 away from the receiving groove 111.

[0063] This design has several advantages. First, the heat dissipation column 112 and the heat dissipation lamp housing 110 are approximately the same thickness, which prevents heat from accumulating within the heat dissipation column 112. Heat can be quickly transferred from the heat dissipation column 112 to other areas of the heat dissipation lamp housing 110, thereby improving the heat dissipation efficiency of the heat dissipation lamp housing 110. Second, it saves materials, reducing both weight and cost.

[0064] In some embodiments, the heat dissipation lamp housing 110 has a plurality of heat dissipation fins (not shown in the figure) integrally formed on the side opposite to the receiving groove 111.

[0065] This design increases the heat dissipation area, which in turn improves the heat dissipation effect of the heat dissipation lamp housing 110, and consequently improves the service life and reliability of the fog light 100.

[0066] In some embodiments, the sidewall of the heat dissipation column 112 is integrally formed with a plurality of heat dissipation fins (not shown in the figure) in the circumferential direction.

[0067] This design increases the heat dissipation area, which in turn improves the heat dissipation effect of the heat dissipation lamp housing 110, and consequently improves the service life and reliability of the fog light 100.

[0068] like Figure 1 , Figure 2 and Figure 4As shown, in some embodiments, the fog light 100 further includes a decorative frame 140 and a dimming element 150. The decorative frame 140 is located between the lens 133 and the lamp cover 120 and is detachably connected to the heat dissipation lamp housing 110. The decorative frame 140 has a clearance opening 141 for the lens 133 to be exposed. The lens 133 is rotatably connected to the decorative frame 140. The dimming element 150 abuts against the lens 133 to adjust the installation angle of the lens 133. The heat dissipation lamp housing 110 has a first mounting hole 113 for the dimming element 150 to pass through.

[0069] In this embodiment, the fog light 100 further includes a decorative frame 140 and a dimming element 150. The decorative frame 140 is used to mount and fix the lens 133. During assembly, the lens 133 is first mounted on the decorative frame 140, and then the decorative frame 140 is snapped into the slot opening of the receiving groove 111 of the heat dissipation lamp housing 110. The decorative frame 140 can be snapped into the heat dissipation lamp housing 110 via a snap-fit ​​mechanism, and both ends of the lens 133 are rotatably connected to the decorative frame 140 via pivots.

[0070] After the lens 133 is installed in the decorative frame 140, the lens 133 can swing along at least the line connecting the two pivots. The heat dissipation lamp housing 110 is provided with a first mounting hole 113 through which the dimming element 150 passes, and the dimming element 150 extends into the receiving cavity through the first mounting hole 113. That is, a part of the dimming element 150 is located inside the heat dissipation lamp housing 110, and another part is located outside the heat dissipation lamp housing 110. The dimming element 150 can be, for example, a dimming screw. One end of the dimming element 150 located inside the heat dissipation lamp housing 110 abuts against the lens 133. In this way, by screwing in the dimming element 150, the insertion of the dimming element 150 into the lens 133 is controlled; by screwing out the dimming element 150, the ejection of the dimming element 150 from the lens 133 is controlled. This changes the mounting angle of the lens 133, thereby adjusting the angle of the light emitted by the light source assembly 130, and thus adjusting the illumination range of the fog light 100. It should be noted that the above description is only an example of the working principle of the dimming element 150. For the specific dimming process and the structure of the dimming element 150, please refer to the relevant technology, which will not be repeated here.

[0071] In this embodiment, the decorative frame 140 can conceal the gaps and internal structures such as wiring between the lens 133 and the heat sink housing 110, thereby improving the aesthetic appearance of the fog light 100. Secondly, the decorative frame 140 acts as a rotating support for the lens 133, providing a structural basis for adjusting the angle of the dimming component 150, thus improving the reliability of the fog light 100's dimming. Furthermore, by providing the first mounting hole 113 in the heat sink housing 110, personnel can dim the fog light 100 from the outside of the heat sink housing 110, further improving the convenience and efficiency of dimming.

[0072] like Figure 4 and Figure 5 As shown, in some embodiments, a terminal portion 134 is provided on the side surface of the circuit board 131 near the heat dissipation surface 1121. The terminal portion 134 includes a wiring terminal 1341. The heat dissipation lamp housing 110 is provided with a plug hole 114 for the wiring terminal 1341 to pass through. The side of the heat dissipation lamp housing 110 away from the circuit board 131 is provided with a connecting portion 115 surrounding the plug hole 114.

[0073] In this embodiment, the terminal portion 134 of the circuit board 131 can specifically be a power supply portion. An external power supply line, such as a vehicle wiring harness, supplies power to the circuit board 131 through the terminal portion 134 so that the circuit board 131 drives the light-emitting unit 132 to emit light.

[0074] Terminal portion 134 extends from circuit board 131, and its wiring terminal 1341 passes through the insertion hole 114 of heat sink housing 110 and is exposed on the outside of heat sink housing 110. Heat sink housing 110 is also provided with a connecting portion 115 surrounding the insertion hole 114. In this way, when the power supply line connector is plugged into the connecting portion 115 of heat sink housing 110, the electrical connection between the circuit board and the power supply line can be realized.

[0075] In other words, the heat dissipation lamp housing 110 also integrates a plug-in interface function. This eliminates the need for a separate plug-in connector on the outside of the heat dissipation lamp housing 110 to connect to the wiring terminals 1341 of the terminal section 134, thereby facilitating further functional integration of the heat dissipation lamp housing 110, reducing costs and the number of parts, and improving the assembly efficiency of the fog light 100.

[0076] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the heat dissipation lamp housing 110 is provided with a vent 116 communicating with the receiving cavity, and the vent 116 is covered with a breathable membrane 117.

[0077] When the fog light 100 is working, the heat from the internal light source component 130 causes the air inside the housing to expand and the air pressure to increase. After it stops working, the internal air cools and contracts, and the air pressure decreases, creating a pressure difference between the inside and outside. By providing a vent 116 and a breathable membrane 117, the air inside and outside the fog light 100 can circulate bidirectionally through the breathable membrane 117, balancing the air pressure in real time. This helps to improve the problem of housing cracking and improves the service life and reliability of the fog light 100. Furthermore, the breathable membrane 117 is breathable but not water-permeable, blocking liquid and solid impurities such as water vapor, dust, and oil, and also protecting the internal electrical components from moisture damage.

[0078] like Figures 1 to 5 As shown, in some embodiments, the edge of the heat dissipation lamp housing 110 is integrally formed with a plurality of mounting feet 118 along the circumferential direction. At least part of the mounting feet 118 is plate-shaped, and the mounting feet 118 are provided with second mounting holes 1181.

[0079] The second mounting hole 1181 of the mounting bracket 118 enables a fixed connection between the heat dissipation lamp housing 110 and the vehicle body, thereby allowing the fog light 100 to be installed on the vehicle. By setting the mounting bracket 118 and making it at least partially plate-shaped, on the one hand, the mounting bracket 118 is directly integrated into the heat dissipation lamp housing 110, eliminating the need to purchase a separate mounting bracket, which facilitates further functional integration of the heat dissipation lamp housing 110, reduces costs and the number of parts, and improves the assembly efficiency of the fog light 100. On the other hand, the plate-shaped mounting bracket 118 can resemble heat dissipation fins, increasing the contact area between the heat dissipation lamp housing 110 and the air, thus further improving the heat dissipation effect of the heat dissipation lamp housing 110.

[0080] Secondly, embodiments of this application provide a vehicle including the fog light 100 described in the first aspect.

[0081] The vehicle in this embodiment uses the fog light 100 described in the first aspect. This improves the waterproof and dustproof performance of the fog light 100, thereby increasing its service life and reliability. Furthermore, it reduces the cost of the fog light 100, while improving its structural compactness, reducing its size, increasing assembly efficiency, and meeting the requirements of lightweighting and miniaturization. In addition, it enhances the design freedom and aesthetics of the fog light 100.

[0082] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A fog light, characterized in that, include: A heat dissipation lamp housing, wherein the heat dissipation lamp housing is provided with a receiving groove, and at least one heat dissipation column is integrally formed in the receiving groove, and the heat dissipation column has a heat dissipation surface; The lampshade, connected to the heat dissipation lamp housing, together with the receiving groove, forms a receiving cavity; and A light source assembly is disposed within the receiving cavity. The light source assembly includes a circuit board, which is connected to the heat dissipation lamp housing and abuts against the heat dissipation surface.

2. The fog light according to claim 1, characterized in that, The light source assembly also includes a light-emitting unit and a lens. The light-emitting unit is connected to the circuit board and is located on the side of the circuit board away from the heat sink. Along the thickness direction of the circuit board, the light-emitting unit is at least partially opposite to the heat dissipation surface, and the lens is disposed in the receiving cavity and located on the light-emitting side of the light-emitting unit.

3. The fog light according to claim 2, characterized in that, The heat sink is multiple, and the circuit board abuts against the heat dissipation surfaces of the multiple heat sinks; The plurality of heat dissipation pillars include a central heat dissipation pillar and a plurality of edge heat dissipation pillars spaced apart around the central heat dissipation pillar. Along the thickness direction of the circuit board, the light-emitting unit is at least partially opposite to the heat dissipation surface of the central heat dissipation pillar.

4. The fog light according to claim 3, characterized in that, The area of ​​the heat dissipation surface of the central heat dissipation column is greater than the area of ​​the heat dissipation surface of the edge heat dissipation columns.

5. The fog light according to any one of claims 1-4, characterized in that, A weight-reduction cavity is provided on the side of the heat dissipation column away from the circuit board; And / or, the heat dissipation lamp housing has a plurality of heat dissipation fins integrally formed on the side opposite to the receiving groove; And / or, the sidewall of the heat dissipation column is integrally formed with a plurality of heat dissipation fins along the circumferential direction.

6. The fog light according to claim 2, characterized in that, The fog light also includes a decorative frame and a dimming device. The decorative frame is located between the lens and the lamp cover and is detachably connected to the heat dissipation lamp housing. The decorative frame has a clearance opening for the lens to be exposed. The lens is rotatably connected to the decorative frame, and the dimming component abuts against the lens to adjust the installation angle of the lens; The heat dissipation lamp housing is provided with a first mounting hole through which the dimming element passes.

7. The fog light according to claim 1, characterized in that, The circuit board has a terminal portion on the side surface near the heat dissipation surface, and the terminal portion includes wiring terminals; The heat dissipation lamp housing is provided with a plug hole for the wiring terminal to pass through, and the side of the heat dissipation lamp housing opposite to the circuit board is provided with a connecting part surrounding the plug hole.

8. The fog light according to claim 1, characterized in that, The heat dissipation lamp housing is provided with a vent that communicates with the receiving cavity, and the vent is covered with a breathable membrane.

9. The fog light according to claim 1, characterized in that, The edge of the heat dissipation lamp housing is integrally formed with multiple mounting feet along the circumferential direction. At least part of the mounting feet is plate-shaped, and the mounting feet are provided with second mounting holes.

10. A vehicle, characterized in that, Includes fog lights as described in any one of claims 1-9.

Images