Sealing structure of lamp shell and driving module radiator and lamp assembly

Abstract

The utility model discloses a lamp assembly and a sealing structure of a lamp shell and a driving module radiator, the sealing structure comprises the lamp shell and the driving module radiator, the lamp shell is provided with a radiator installation part, and the driving module radiator is fixed on the radiator installation part so as to carry out heat dissipation on a lamp module in the lamp shell; at least one circle of sealing rib is arranged on the radiator mounting part, the driving module radiator is provided with a sealing connecting part, the sealing connecting part is provided with a sealing groove allowing the sealing rib to be embedded, and at least one of the sealing rib and the sealing groove is provided with a soft foundation material sealing part. And the soft foundation material sealing part is extruded by the sealing ribs and the sealing grooves to form sealing. In the assembling link, only the lamp shell and the driving module radiator need to be assembled, and sealing can be achieved without assembling a sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, and in particular to a sealing structure of a lamp housing and a driving module radiator and a lamp assembly. Background Art

[0002] There are many types of automotive lamps according to their functions, which are used in different scenarios. As the requirements for the brightness of automotive lamps are getting higher and higher, the power of automotive lamps is also increasing, which puts higher requirements on their heat dissipation.

[0003] In the prior art, a driving radiator needs to be installed on the lamp housing of the automobile lamp to improve the heat dissipation efficiency of the lamp. Currently, the driving radiator is usually fixed to the lamp housing by screws. In order to meet the requirements of waterproof and dustproof at the installation site, it is usually necessary to perform sealing treatment on the installation site.

[0004] The edge of the driver radiator is provided with a sealing ring embedding groove, and the sealing ring is set in the sealing ring embedding groove. The lamp housing is provided with a pressing rib. When the driver radiator is fixed to the lamp housing, as the screws are continuously tightened, the pressing rib on the lamp housing presses the sealing ring in the sealing ring embedding groove to achieve sealing. In actual installation, there is a risk of missing or improper installation of the sealing ring, and both missing and improper installation will lead to sealing failure.

[0005] Therefore, how to avoid the problem of sealing failure has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a sealing structure between a lamp housing and a driving module radiator to avoid the problem of sealing failure;

[0007] Another object of the present invention is to provide a lamp assembly having the above-mentioned sealing structure between the lamp housing and the driving module heat sink.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A sealing structure of a lamp housing and a driving module radiator, comprising a lamp housing and a driving module radiator, wherein the lamp housing has a radiator mounting portion, and the driving module radiator is fixed on the radiator mounting portion to dissipate heat for a lamp module in the lamp housing;

[0010] At least one circle of sealing ribs is arranged on the radiator mounting portion, the driving module radiator has a sealing connection portion, the sealing connection portion has a sealing groove for the sealing rib to be embedded, at least one of the sealing rib and the sealing groove is provided with a soft-base material sealing portion, and the soft-base material sealing portion is squeezed by the sealing rib and the sealing groove to form a seal.

[0011] Optionally, in the above-mentioned sealing structure between the lamp housing and the driving module heat sink, the soft base material sealing portion is located at an end of the sealing rib facing the sealing groove;

[0012] The sealing rib and the soft base material sealing part are integrally formed by a two-color injection molding process.

[0013] Optionally, in the sealing structure between the lamp housing and the driving module heat sink, the soft-based material sealing portion is interference-fitted with the sealing groove.

[0014] Optionally, in the sealing structure between the lamp housing and the driving module heat sink, the end of the sealing rib facing the sealing groove is coated with a soft base material layer to form the soft base material sealing portion; and / or,

[0015] The groove bottom of the sealing groove is coated with a soft base material layer to form the soft base material sealing part.

[0016] Optionally, in the above-mentioned sealing structure between the lamp housing and the driving module radiator, the driving module radiator is fixed to the radiator mounting portion by a fastener, the radiator mounting portion has a plurality of first fastening portions, and the sealing connection portion has a second fastening portion corresponding to the first fastening portions one by one;

[0017] The first fastening portion is provided with a fastening optical hole, the second fastening portion is provided with a fastening threaded hole, the fastener passes through the fastening optical hole, and the thread is matched with the fastening threaded hole.

[0018] The sealing structure of the lamp housing and the driving module radiator provided by the utility model is provided with at least one circle of sealing ribs on the radiator mounting part, a sealing groove for embedding the sealing ribs is provided on the sealing connection part, and a soft base material sealing part is provided on at least one of the sealing ribs and the sealing groove. When the lamp housing and the driving module radiator are fixed, the sealing ribs are embedded in the sealing groove, and the soft base material sealing part is squeezed and deformed under the action of the pressing force, so as to seal the contact position between the lamp housing and the driving module radiator. If the soft base material sealing part is located on the lamp housing, the soft base material sealing part is manufactured in the production and manufacturing link when the lamp housing is manufactured. Similarly, if the soft base material sealing part is located on the driving module radiator, the soft base material sealing part is manufactured in the production and manufacturing link when the driving module radiator is manufactured, so that in the assembly link, it is only necessary to assemble the lamp housing and the driving module radiator, and sealing can be achieved without assembling a sealing ring.

[0019] To sum up, the sealing structure between the lamp housing and the driving module radiator disclosed in this embodiment does not need to set a sealing ring between the lamp housing and the driving module radiator for sealing, which not only simplifies the assembly steps, but also avoids the sealing failure problem caused by missing or improper installation of the sealing ring.

[0020] A lamp assembly comprises a lamp housing, a lamp module and a driving module radiator arranged on the lamp housing, wherein the lamp housing and the driving module radiator are sealed by using the sealing structure of the lamp housing and the driving module radiator as described in any one of the above items.

[0021] Optionally, in the above-mentioned lamp assembly, an active heat dissipation device is also included, and the active heat dissipation device at least includes a ventilation duct and a fan device;

[0022] The fan device is used for blowing or sucking air toward the drive module radiator through the ventilation duct.

[0023] Optionally, the above-mentioned lamp assembly further includes a temperature sensor, wherein the temperature sensor is used to detect the temperature of the lamp module, and when the temperature exceeds a preset temperature, the active heat dissipation device is started.

[0024] Optionally, in the above-mentioned lamp assembly, the active heat dissipation device further includes a refrigeration device, and the fan device is used to blow the airflow after heat exchange by the refrigeration device to the driving module radiator through the ventilation duct.

[0025] Optionally, in the above-mentioned lamp assembly, a plurality of spaced-apart air guide plates are provided on the surface of the driving module radiator facing away from the lamp module, an air guide channel is formed between any two adjacent air guide plates, and the outlet end of the ventilation duct is connected to the inlet end of each of the air guide channels.

[0026] The lamp assembly provided by the utility model has all the technical effects of the sealing structure of the lamp housing and the driving module radiator as described above, because the lamp housing and the driving module radiator are sealed by using the sealing structure of the lamp housing and the driving module radiator as described above, which will not be repeated in this article. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 An exploded view of a lamp assembly provided in an embodiment of the utility model;

[0029] Figure 2 A partial cross-sectional view of a lamp assembly provided by an embodiment of the utility model;

[0030] Figure 3 A partial cross-sectional view of another lamp assembly provided by an embodiment of the utility model;

[0031] Figure 4 A partial cross-sectional view of another lamp assembly provided by an embodiment of the utility model;

[0032] Figure 5 A schematic diagram of the structure of a drive module radiator provided in an embodiment of the utility model;

[0033] Figure 6 A schematic structural diagram of an air guide plate assembly provided in an embodiment of the utility model.

[0034] The markings in the figure are:

[0035] 100-lamp housing; 110-heat sink mounting portion; 111-sealing rib; 112-soft base material sealing portion;

[0036] 200 - driving module radiator; 210 - sealing connection part; 211 - first fastening part;

[0037] 300-fasteners;

[0038] 400-Lighting module;

[0039] 500-temperature sensor;

[0040] 600-refrigeration device; 610-ventilation duct;

[0041] 700-air guide plate assembly; 710-fixing sleeve; 720-air guide plate; 730-air guide channel. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] like Figure 1 to Figure 4As shown, an embodiment of the utility model discloses a sealing structure between a lamp housing 100 and a driving module radiator 200. The sealing structure between the lamp housing 100 and the driving module radiator 200 does not require a sealing ring to be provided between the lamp housing 100 and the driving module radiator 200 for sealing, which not only simplifies the assembly steps, but also avoids the problem of sealing failure caused by missing or improper installation of the sealing ring.

[0044] The sealing structure of the lamp housing 100 and the driving module radiator 200 disclosed in this embodiment includes the lamp housing 100 and the driving module radiator 200, and the driving module radiator 200 is installed on the lamp housing 100 to dissipate heat for the lamp module 400 in the lamp housing 100. The lamp housing 100 has a radiator mounting portion 110, and the radiator mounting portion 110 can protrude from the back of the lamp housing body of the lamp housing 100 to facilitate the installation of the driving module radiator 200.

[0045] The driving module radiator 200 is fixed on the radiator mounting portion 110. Those skilled in the art can understand that in order to achieve the purpose of dustproof and waterproof, the contact position between the driving module radiator 200 and the radiator mounting portion 110 needs to be sealed. Specifically, in the present embodiment, at least one circle of sealing ribs 111 is provided on the radiator mounting portion 110. It should be noted that the more the number of sealing ribs 111, the better the sealing effect, but the cost will be higher. Those skilled in the art can design the number of sealing ribs 111 according to demand. The sealing ribs 111 need to be surrounded by a closed ring to avoid breakpoints with poor sealing effect. The annular structure of the sealing rib 111 can be a circular ring, or a rectangular ring or a ring of other shapes, which depends on the shape of the radiator mounting portion 110. Generally, the shape of the sealing rib 111 should be designed to be the same shape as the radiator mounting portion 110.

[0046] The driving module heat sink 200 has a sealing connection part 210, and the sealing connection part 210 has a sealing groove for the sealing rib 111 to be embedded, and at least one of the sealing rib 111 and the sealing groove is provided with a soft base material sealing part 112, and the soft base material sealing part 112 is squeezed by the sealing rib 111 and the sealing groove to form a seal. In this embodiment, the traditional sealing ring is eliminated, and the soft base material sealing part 112 is provided in at least one of the sealing rib 111 and the sealing groove. The material of the soft base material sealing part 112 can be the same as that of the traditional sealing ring, and needs to have a certain elasticity, and can be squeezed and deformed under the action of external force.

[0047] It should be noted that the soft base material sealing part 112 needs to be designed as an integrated structure with the substrate to which it is attached (i.e., the sealing rib 111 and / or the sealing groove). The integrated structure here does not mean that the soft base material sealing part 112 needs to be made of the same material as the substrate to which it is attached. The soft base material sealing part 112 and the substrate to which it is attached need to use different materials, so that the sealing rib 111 and the sealing groove are hard materials with certain strength and rigidity, while the soft base material sealing part 112 is a soft material with certain elasticity and can be deformed by extrusion to have a sealing effect. The connection relationship between the soft base material sealing part 112 and the substrate to which it is attached can be arbitrary, such as a coating process, a bonding process, a two-color injection molding process, etc., as long as the soft base material sealing part 112 can be added to the sealing rib 111 and / or the sealing groove.

[0048] The sealing structure of the lamp housing 100 and the driving module radiator 200 disclosed in the embodiment of the utility model is provided with at least one circle of sealing ribs 111 on the radiator mounting portion 110, a sealing groove for the sealing ribs 111 to be embedded is provided on the sealing connection portion 210, and a soft-based material sealing portion 112 is provided on at least one of the sealing ribs 111 and the sealing groove. When the lamp housing 100 and the driving module radiator 200 are fixed, the sealing ribs 111 are embedded in the sealing groove, and under the action of the pressing force, the soft-based material sealing portion 112 is squeezed and deformed, thereby sealing the contact position between the lamp housing 100 and the driving module radiator 200. If the soft-based material sealing portion 112 is located on the lamp housing 100, the soft-based material sealing portion 112 is manufactured in the production and manufacturing process when the lamp housing 100 is manufactured. Similarly, if the soft-based material sealing portion 112 is located on the driving module radiator 200, the soft-based material sealing portion 112 is manufactured in the production and manufacturing process when the driving module radiator 200 is manufactured, so that in the assembly process, it is only necessary to assemble the lamp housing 100 and the driving module radiator 200, and sealing can be achieved without assembling a sealing ring.

[0049] In this embodiment, the soft base material sealing portion 112 is located at the end of the sealing rib 111 facing the sealing groove, and the sealing rib 111 and the soft base material sealing portion 112 are integrally formed by a two-color injection molding process. The two-color injection molding process refers to a molding process in which two different materials are injected into the same set of molds, thereby realizing a molding process in which the molded parts are formed of two materials. In this embodiment, the sealing rib 111 and the soft base material sealing portion 112 can be the same color or different colors, but they need to be made of different materials so that the sealing rib 111 has a certain rigidity and strength, and the soft base material sealing portion 112 has a certain elasticity.

[0050] When the sealing rib 111 and the soft base material sealing part 112 are in different colors, the soft base material sealing part 112 and the sealing rib 111 can be clearly distinguished, so that the quality inspector can judge whether the soft base material sealing part 112 is successfully injected, and avoid the sealing failure problem caused by the unsuccessful injection of the soft base material sealing part 112 after assembly. When the sealing rib 111 and the soft base material sealing part 112 are in the same color, the consistency of the lamp housing 100 can be higher and the appearance can be better.

[0051] When the soft base material sealing part 112 is located on the sealing rib 111, the soft base material sealing part 112 and the sealing groove have an interference fit, so that after the sealing rib 111 is embedded in the sealing groove, the soft base material sealing part 112 can be squeezed by the side wall of the sealing groove, ensuring that the soft base material sealing part 112 and the sealing groove have a greater fit force to obtain a better sealing effect.

[0052] It should be noted that the sealing rib 111 and the soft base material sealing portion 112 may also not adopt the two-color injection molding process. For example, a layer of soft base material can be directly applied to the sealing rib 111 of the lamp housing 100 and / or the sealing groove of the driving module radiator 200, and the soft base material sealing portion 112 is formed after the material solidifies, and then the lamp housing 100 and the driving module radiator 200 are assembled.

[0053] Specifically, the soft-base material sealing portion 112 can be formed by coating a soft-base material layer on the end of the sealing rib 111 facing the sealing groove; the soft-base material sealing portion 112 can also be formed by coating a soft-base material layer on the bottom of the sealing groove; the soft-base material sealing portion 112 can also be formed by coating a soft-base material layer on both the sealing rib 111 and the sealing groove.

[0054] In a specific embodiment of the utility model, the driving module radiator 200 is fixed to the radiator mounting portion 110 of the lamp housing 100 by means of a fastener 300. The radiator mounting portion 110 has a plurality of first fastening portions 211, and the sealing connection portion 210 has a second fastening portion corresponding to the first fastening portions 211. When installing the driving module radiator 200, the first fastening portions 211 on the radiator mounting portion 110 need to correspond to the second fastening portions on the sealing connection portion 210 to facilitate the insertion of the fastener 300.

[0055] In this embodiment, the main part of the heat sink mounting portion 110 is a polygonal structure, that is, a non-circular structure, so that after the sealing rib 111 is embedded in the sealing groove, the first fastening portion 211 and the second fastening portion can automatically correspond to each other, thereby improving assembly efficiency.

[0056] The first fastening part 211 is provided with a fastening light hole, and the second fastening part is provided with a fastening threaded hole. The fastener 300 passes through the fastening light hole and is threadedly matched with the fastening threaded hole. The number and position of the first fastening part 211 and the second fastening part can be arranged by those skilled in the art according to requirements, as long as the drive module radiator 200 can be effectively fixed.

[0057] When the sealing rib 111 is embedded in the sealing groove and the soft-based material sealing part 112 is in contact with the groove body of the sealing groove, the fastener 300 is passed through the fastening light hole on the first fastening part 211 and threadedly engaged with the fastening threaded hole on the second fastening part. It should be noted that the length of the fastener 300 can ensure that when the end of the fastener 300 is engaged with the fastening threaded hole, the soft-based material sealing part 112 is not compressed by the pre-tightening force, so as to facilitate the insertion of the fastener 300 and improve the installation efficiency. Then, as the fastener 300 is tightened, the driving module heat sink 200 is gradually pressed against the lamp housing 100, so that the sealing rib 111 gradually moves toward the bottom of the sealing groove, and the soft-based material sealing part 112 is affected by the pre-tightening force, squeezed and deformed by the bottom of the sealing groove, and acts in the sealing groove to complete the sealing.

[0058] The embodiment of the utility model further discloses a lamp assembly, including a lamp housing 100, a lamp module 400, and a driving module radiator 200 disposed on the lamp housing 100, wherein the lamp housing 100 and the driving module radiator 200 are sealed by using the sealing structure of the lamp housing 100 and the driving module radiator 200 disclosed in the above embodiment. The lamp assembly disclosed in the embodiment of the utility model has all the technical effects of the sealing structure of the lamp housing 100 and the driving module radiator 200 disclosed in the above embodiment, because the lamp housing 100 and the driving module radiator 200 are sealed by using the sealing structure of the lamp housing 100 and the driving module radiator 200 disclosed in the above embodiment, and thus, it is not further described herein.

[0059] In the current industry, the market share of new energy vehicles is increasing. Without an engine, many models have cancelled the air intake grille and changed to a fully enclosed front face. The air flow between the automobile lamps, especially the headlights, and the internal body is greatly reduced, and the original drive module radiator 200 has disadvantages in cooling by the heat sink. Adding heat sinks to the drive module radiator 200 will also increase the cost of metal parts, occupy internal space, and increase the weight of the entire lamp.

[0060] Furthermore, in this embodiment, no heat dissipation fins are arranged on the driving module radiator 200 to reduce the material cost of the driving module radiator 200 and improve the space utilization rate in the vehicle. That is, in this embodiment, the side of the driving module radiator 200 facing away from the lamp housing 100 is a flat plate structure.

[0061] In order to ensure that the driving module radiator 200 without the heat dissipation fins can still meet the heat dissipation requirements of the automobile lamp, in this embodiment, the lamp assembly may also include an active heat dissipation device, which includes at least a ventilation duct 610 and a fan device, and the fan device is used to blow or suck air to the driving module radiator 200 through the ventilation duct 610. Under the action of the fan device, the air flow speed can be accelerated, and the air flow speed around the driving module radiator 200 can be accelerated through the ventilation duct 610, thereby improving the heat dissipation efficiency. The fan device can blow away the hotter air around the driving module radiator 200 by blowing air, and can also suck away the hotter air around the driving module radiator 200 by sucking air.

[0062] Furthermore, the lamp assembly may further include a temperature sensor 500, which is used to detect the temperature of the lamp module 400. When the temperature exceeds a preset temperature, the active heat dissipation device is activated. That is, in this embodiment, the active heat dissipation device is not activated in real time, but is activated only when the temperature detected by the temperature sensor 500 exceeds a preset temperature, so as to save energy. Those skilled in the art can set the preset temperature according to the type of automobile lamp.

[0063] It should be noted that different areas of the lamp module 400 have different heat generation, and therefore different heat dissipation requirements. In this embodiment, multiple temperature sensors 500 can be arranged to divide the lamp module 400 into multiple areas, and each area is arranged with a corresponding temperature sensor 500 to detect the temperature of the area. When the temperature detected by the temperature sensor 500 in any area exceeds the preset temperature, the active heat dissipation device is activated to accelerate heat dissipation.

[0064] Furthermore, the ventilation duct 610 may also include a plurality of ventilation ducts 610, the air outlets of each ventilation duct 610 respectively correspond to the respective areas of the lamp module 400, and each ventilation duct 610 is provided with a switch valve to independently control the on and off of the ventilation duct 610. When the temperature detected by the temperature sensor 500 in the corresponding area of ​​the lamp module 400 exceeds the preset temperature, only the switch valve of the corresponding ventilation duct 610 is opened to dissipate heat in the area, and the switch valve of the ventilation duct 610 is in a closed state when the temperature of other areas does not exceed the preset temperature.

[0065] In order to further improve the heat dissipation effect, the active heat dissipation device may further include a refrigeration device 600, which can reduce the ambient air temperature, thereby increasing the temperature difference with the lamp module 400, and the fan device is used to blow the airflow after heat exchange of the refrigeration device 600 to the driving module radiator 200 through the ventilation duct 610. Since the air blown to the driving module radiator 200 has a lower temperature, it can take away more heat from the driving module radiator 200 when exchanging heat with the driving module radiator 200, thereby improving the heat exchange efficiency.

[0066] The refrigeration device 600 may be a semiconductor refrigeration plate, or may be other refrigeration devices 600. The embodiment of the utility model does not limit the specific type of the refrigeration device 600, as long as the refrigeration effect can be achieved.

[0067] Please combine Figure 6 As shown, in a specific embodiment of the utility model, a plurality of spaced-apart air guide plates 720 are provided on the surface of the side of the driving module radiator 200 facing away from the lamp module 400. It should be noted that the air guide plates 720 are not an integrated structure with the driving module radiator 200, that is, the air guide plates 720 can be made of metal material different from the driving module radiator 200, but can be made of plastic material. For example, the air guide plate assembly 700 composed of the individual air guide plates 720 can be fixed on the driving module radiator 200.

[0068] Specifically, the air guide plate assembly 700 may include a fixing sleeve 710 and a plurality of air guide plates 720 fixed on the fixing sleeve 710. The fixing sleeve 710 is mounted on the periphery of the driving module radiator 200 to achieve the installation of the air guide plate 720, so that the air guide plate 720 is located on the side surface of the driving module radiator 200 facing away from the lamp module 400.

[0069] An air guide channel 730 is formed between any two adjacent air guide plates 720, and the outlet end of the ventilation duct 610 is connected to the inlet end of each air guide channel 730. It should be noted that, for the convenience of installation, the air guide plate assembly 700 can be fixed to the outlet end of the ventilation duct 610, for example, the air guide plate assembly 700 and the ventilation duct 610 can be designed as an integrated structure, and the connection position of the two is located on the air guide plate of the air guide plate assembly 700, so that the airflow blown out of the ventilation duct 610 can directly enter the air guide channel 730, under the action of the air guide channel 730, the flow rate of the airflow is increased, and the speed of taking away the heat of the drive module radiator 200 is accelerated.

[0070] When the air deflector assembly 700 and the ventilation duct 610 are an integral structure, the two can be injection molded parts, which are designed as an integral structure through the injection molding process. When the air deflector assembly 700 is installed, the fixing sleeve 710 on one side of the air deflector assembly 700 is sleeved on the periphery of the driving module radiator 200. It should be noted that, in order to facilitate the fixing sleeve 710 to be sleeved on the driving module radiator 200, the driving module radiator 200 has a protrusion protruding to the side away from the lamp module 400, and the fixing sleeve 710 can be sleeved on the outside of the protrusion. After the air deflector assembly 700 is installed, the air deflector 720 of the air deflector assembly 700 is just attached to the outer wall of the protrusion on the side facing away from the lamp module 400, so that the airflow blown out of the ventilation duct 610 can quickly take away the heat of the driving module radiator 200 through the air guide channel 730. In this embodiment, the airflow blown out of the ventilation duct 610 is guided by the air guide plate 720 to prevent part of the airflow from flowing at a position far from the drive module radiator 200, which would result in poor heat dissipation. Under the restraining effect of the air guide plate 720, the airflow can only flow along the air guide channel 730 and will not flow in other directions, so the heat dissipation efficiency is high.

[0071] In this embodiment, the air guide plate assembly 700 and the ventilation duct 610 are designed to be an integrated structure, so that when the air guide plate assembly 700 is fixed, the relative position of the ventilation duct 610 and the drive module radiator 200 can be fixed, thereby improving the installation efficiency and ensuring the stability and reliability of the relative position relationship between the ventilation duct 610 and the drive module radiator 200, while also ensuring the effect of the airflow.

[0072] When there are multiple ventilation ducts 610 , one side of the air outlet of each ventilation duct 610 can also be designed as an integrated structure with the air guide plate assembly 700 , and the air outlet of each ventilation duct 610 is correspondingly connected to the corresponding position of the air guide plate assembly 700 .

[0073] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0074] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing structure between a lamp housing and a driving module radiator, characterized in that: Comprising a lamp housing (100) and a driving module radiator (200), the lamp housing (100) having a radiator mounting portion (110), and the driving module radiator (200) being fixed on the radiator mounting portion (110) to dissipate heat from a lamp module (400) in the lamp housing (100); The heat sink mounting portion (110) is provided with at least one circle of sealing ribs (111), the driving module heat sink (200) has a sealing connection portion (210), the sealing connection portion (210) has a sealing groove for the sealing rib (111) to be embedded, at least one of the sealing rib (111) and the sealing groove is provided with a soft-based material sealing portion (112), and the soft-based material sealing portion (112) is squeezed by the sealing rib (111) and the sealing groove to form a seal.

2. The sealing structure of the lamp housing and the driving module radiator according to claim 1, characterized in that: The soft base material sealing portion (112) is located at an end of the sealing rib (111) facing the sealing groove; The sealing rib (111) and the soft base material sealing portion (112) are integrally formed by a two-color injection molding process.

3. The sealing structure of the lamp housing and the driving module radiator according to claim 2, characterized in that: The soft base material sealing portion (112) is interference fit with the sealing groove.

4. The sealing structure of the lamp housing and the driving module radiator according to claim 1, characterized in that: The end portion of the sealing rib (111) facing the sealing groove is coated with a soft base material layer to form the soft base material sealing portion (112); and / or, The bottom of the sealing groove is coated with a soft base material layer to form the soft base material sealing portion (112).

5. The sealing structure of the lamp housing and the driving module radiator according to any one of claims 1 to 4, characterized in that: The driving module radiator (200) is fixed to the radiator mounting portion (110) by means of a fastener (300); the radiator mounting portion (110) has a plurality of first fastening portions (211); and the sealing connection portion (210) has second fastening portions corresponding one-to-one to the first fastening portions (211); The first fastening portion (211) is provided with a fastening optical hole, the second fastening portion is provided with a fastening threaded hole, the fastening member (300) passes through the fastening optical hole and is threadedly engaged with the fastening threaded hole.

6. A lamp assembly, characterized in that: The invention comprises a lamp housing (100), a lamp module (400), and a driving module radiator (200) arranged on the lamp housing (100); the lamp housing (100) and the driving module radiator (200) are sealed by using the sealing structure of the lamp housing and the driving module radiator according to any one of claims 1 to 5.

7. The lamp assembly according to claim 6, characterized in that: Also included is an active heat dissipation device, which at least includes a ventilation duct (610) and a fan device; The fan device is used to blow or suck air toward the drive module radiator (200) through the ventilation duct (610).

8. The lamp assembly according to claim 7, characterized in that: It also includes a temperature sensor (500), which is used to detect the temperature of the lamp module (400). When the temperature exceeds a preset temperature, the active heat dissipation device is activated.

9. The lamp assembly according to claim 8, characterized in that: The active heat dissipation device further comprises a refrigeration device (600), and the fan device is used to blow the airflow after heat exchange of the refrigeration device (600) toward the drive module radiator (200) through the ventilation duct (610).

10. The lamp assembly according to any one of claims 7 to 9, characterized in that: A plurality of air guide plates arranged at intervals are provided on a surface of the driving module heat sink (200) on a side facing away from the lamp module (400), and an air guide channel is formed between any two adjacent air guide plates. The outlet end of the ventilation duct (610) is connected to the inlet end of each of the air guide channels.

Images