Lamp holder, lighting module and lighting device
By designing separate upper and lower circuit boards in the LED lamp holder and using the radiator and connector housing for double heat dissipation, the problem of difficulty in dissipating the LED lamp holder in the prior art is solved, and efficient heat dissipation and multi-function control are achieved. Reduced costs.
Patent Information
- Application Number
- CN201910578404.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-06-28
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2039-06-28
AI Technical Summary
While existing LED lamp holders achieve product miniaturization and multifunctionalization, they are difficult to effectively dissipate heat, resulting in increased LED temperature, shortened service life or decreased luminous flux.
Design a lamp holder, including the connector housing and a radiator, reduces the heat dissipation by separating the light emitting elements on the upper circuit board from the electronic components on the lower circuit board, and using the radiator and connector housing to perform double heat dissipation. Temperature resistance requirements of electronic components.
It realizes efficient heat dissipation of LED light sources and components, reduces production costs, expands the substrate area or component layout space, and enhances the design margin and heat dissipation performance of the lamp holder.
Smart Images

Figure CN111780058B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of lighting technology, and in particular to a lamp holder, a lighting module and a lighting device. Background Art
[0002] LED has the characteristics of high brightness, rich colors, low power consumption and long life. It is widely used in the automotive field, such as headlights, rear combination lights, car reading lights, etc. LED lamp holder is a standardized detachable LED light source that integrates LED light source, circuit and installation structure. When in use, it can be directly screwed in and fixed on the lamp body or reflector, and electrically connected to the outside through the connector structure at the tail, and it is easy to disassemble and replace. Due to its standardized structure, it can be borrowed by lamps of various models, thereby reducing design and manufacturing costs. According to different LED models, it can be designed into LED lamp holders with multiple functions such as taillights, brake lights, turn signals, reversing lights and fog lights.
[0003] Since the size of LED lamp holders is restricted by regulations, and in order to achieve miniaturization and multifunctionality of vehicle lighting devices, it is necessary to arrange LEDs and a large number and variety of components on a substrate with limited space. In addition, the small product structure means that the heat dissipation of LED light sources and components will be relatively more difficult. If the heat generation area is too concentrated, the temperature of the LED may increase, thereby shortening its life, or reducing the luminous flux and failing to meet regulations. Therefore, it is urgent to provide an LED lamp holder that can increase the substrate area or component layout space while meeting the requirements of product miniaturization and multifunctionality, and can efficiently dissipate the heat generated by the LED light source and components to the outside. Summary of the invention
[0004] In order to overcome the deficiencies in the prior art, the basic technical problem that the present invention first solves is to provide a lamp holder, which has the advantages of good heat dissipation performance, large design margin, pressure resistance and impact resistance.
[0005] The present invention also provides a lighting module including the lamp holder and a lighting device including the lighting module.
[0006] In order to achieve the above-mentioned purpose, the present invention provides a lamp holder, including a connector housing and a heat sink, one end of the heat sink is suitable for being clamped with one end of the connector housing, the connector housing is nested in the heat sink, a lower circuit board is provided on the end of the connector housing that is clamped with the heat sink, and an upper circuit board is provided on the outer side of the end of the heat sink that is clamped with the connector housing; wherein the upper circuit board is electrically connected to the lower circuit board, and the lower circuit board is electrically connected to an electrical signal output device.
[0007] Preferably, the upper circuit board is electrically connected to the lower circuit board via inter-board PIN pins, and the lower circuit board is electrically connected to the electrical signal output device via connector PIN pins.
[0008] Preferably, the inter-board PIN pins are respectively welded to the upper circuit board and the lower circuit board, and the connector PIN pins are welded to the lower circuit board.
[0009] Preferably, a first sealing surface is provided on the connector housing at a clamping position with the heat sink, and a second sealing surface is provided on the heat sink at a clamping position with the connector housing, and the first sealing surface is sealingly connected to the second sealing surface.
[0010] Preferably, a positioning hole is provided on the upper circuit board, a positioning column is provided on the heat sink, and the positioning hole matches the positioning column.
[0011] Preferably, a circuit board avoidance groove is provided on the lower circuit board, and one end of the connector housing that is clamped with the heat sink is provided with a housing guide groove and a housing limit groove in sequence, and a fixing rib is provided on the heat sink, and the circuit board avoidance groove, the housing guide groove and the housing limit groove all match the fixing rib.
[0012] Preferably, an upper thermal conductive adhesive is provided on a side surface of the upper circuit board close to the heat sink, and lower thermal conductive adhesive is provided on both side surfaces of the lower circuit board.
[0013] Preferably, a first heat sink is provided on the side wall of the connector housing, and a second heat sink is provided on the side wall of the radiator.
[0014] A second aspect of the present invention provides a lighting module, comprising the above-mentioned lamp holder, wherein the upper circuit board is provided with a light-emitting element, and the lower circuit board is provided with electronic components.
[0015] Preferably, the lighting module also includes a lamp body matching structure and a wire end connector, the lamp body matching structure, the lamp holder and the wire end connector are connected in sequence, the side wall of the connector housing is provided with an anti-error structure and an anti-dropout buckle, the wire end connector is provided with an anti-error limiting groove and an anti-dropout bayonet, and the heat sink is provided with a lamp holder clamping foot, wherein the anti-error structure matches the anti-error limiting groove, the anti-dropout buckle matches the anti-dropout bayonet, and the lamp holder clamping foot matches the lamp body matching structure.
[0016] Preferably, a sealing ring is provided at one end of the heat sink connected to the lamp body matching structure, and the sealing ring is interference fit with the lamp body matching structure.
[0017] A third aspect of the present invention provides a lighting device, comprising the above-mentioned lighting module.
[0018] Through the above technical solution, the beneficial effects of the present invention are:
[0019] 1. The light-emitting element is arranged on the upper circuit board, and the electronic components are arranged on the lower circuit board, so that the light source circuit board and the control circuit board are arranged separately, so that the control circuit board has a larger space, which is convenient for the arrangement of various electronic components to realize the multi-functional control of the lamp holder, or the cost of the lighting equipment can be reduced by arranging low-cost and large-volume electronic components, and at the same time, the lamp holder has sufficient design margin;
[0020] 2. The heat generated by the light-emitting elements on the upper circuit board is directly dissipated through the radiator, and the heat generated by the electronic components on the lower circuit board is dissipated through the connector housing and the radiator at the same time, which reduces the temperature resistance requirements of the electronic components and can further reduce the production cost;
[0021] 3. The upper circuit board has good heat dissipation performance and large heat dissipation redundancy, and high-power light-emitting components can be arranged;
[0022] 4. The components of the lamp holder in the present invention are compact in structure, small in size, resistant to pressure and impact, low in cost, and have a wide range of applications.
[0023] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 is a three-dimensional structural diagram of an embodiment of a lamp holder of the present invention;
[0025] Figure 2 yes Figure 1 A top view of the lamp holder shown;
[0026] Figure 3 yes Figure 2 A cross-sectional view of the AA portion of the connector housing;
[0027] Figure 4 yes Figure 2 Cross-sectional view of the middle BB area;
[0028] Figure 5 yes Figure 1 a bottom view of the lamp holder shown;
[0029] Figure 6 yes Figure 1 a side view of the lamp holder shown;
[0030] Figure 7 yes Figure 1 The circuit diagram of the lamp holder shown;
[0031] Figure 8is a top view of an embodiment of a connector housing of the present invention;
[0032] Fig. 9 is a bottom view of an embodiment of a radiator of the present invention;
[0033] Fig.10 2 is a schematic structural diagram of an assembly A formed by inter-board PIN pins, connector PIN pins and connector housing in one embodiment of a lamp holder of the present invention;
[0034] Fig.11 yes Fig.10 The schematic diagram of the structure of the assembly A and the lower circuit board forming the assembly B shown;
[0035] Fig.12 yes Fig.11 The structural schematic diagram of the assembly B shown, the heat sink, and the upper circuit board forming the assembly C;
[0036] Fig.13 It is a schematic diagram of the installation of an embodiment of the lighting module of the present invention;
[0037] Fig.14 It is a three-dimensional structural diagram of an embodiment of a connector housing of the present invention.
[0038] Description of Reference Numerals
[0039] 1 connector housing 11 housing guide groove
[0040] 12 Anti-error structure 13 Anti-drop buckle
[0041] 14 housing limit groove 15 first heat sink
[0042] 16 first sealing surface 2 upper circuit board
[0043] 21 Light-emitting element 22 Positioning hole
[0044] 23 upper thermal conductive adhesive 3 lower circuit board
[0045] 31 Electronic components 32 Thermal conductive adhesive
[0046] 33 circuit board avoidance slot 4 radiator
[0047] 41 second heat sink 42 lamp holder foot
[0048] 43 positioning column 44 fixing rib
[0049] 45 Second sealing surface 5 inter-board PIN needle
[0050] 6 plug-in PIN pin 7 lamp body matching structure
[0051] 8-wire terminal connector 81 error-proof limit slot
[0052] 9 Sealing ring DETAILED DESCRIPTION
[0053] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the following specific embodiments.
[0054] The directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.
[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connection" and "clamping" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0056] A first aspect of the present invention provides a lamp holder, such as Figure 1-Figure 7 As shown, it includes a connector housing 1 and a heat sink 4, one end of the heat sink 4 is suitable for being clamped with one end of the connector housing 1, the connector housing 1 is nested in the heat sink 4, the end of the connector housing 1 clamped with the heat sink 4 is provided with a lower circuit board 3, and the end of the heat sink 4 clamped with the connector housing 1 is provided with an upper circuit board 2 on the outer side; wherein the upper circuit board 2 is electrically connected to the lower circuit board 3, and the lower circuit board 3 is electrically connected to the electrical signal output device.
[0057] It should be noted that a partition may be provided at one end of the heat sink 4 that is engaged with the connector housing 1, an upper circuit board 2 is provided on the side of the partition away from the connector housing 1, and a lower circuit board 3 is provided between the partition and the connector housing 1. In the present invention, the heat sink 4 and the connector housing 1 can be engaged by inserting the heat sink 4 and the connector housing 1 into each other and rotating them, and then sealing and fixing them by a sealant, or by providing matching buckles and slots on the heat sink 4 and the connector housing 1, or other methods that can achieve the engagement of the heat sink 4 and the connector housing 1. In the present invention, the connector housing 1, the upper circuit board 2, the lower circuit board 3, the heat sink 4 and other components of the lamp holder can be fastened by integral injection molding, glue pouring, welding and other methods, the connector housing 1 is formed of thermally conductive plastic, and the heat sink 4 is formed of heat dissipation material.
[0058] By using the lamp holder of the basic technical solution of the present invention, after the connector housing 1 is connected to the lower circuit board 3, the connector housing 1 is clamped onto the heat sink 4, and then the upper circuit board 2 is connected to the heat sink 4, and the upper circuit board 2 is electrically connected to the lower circuit board 3, and the lower circuit board 3 is electrically connected to the electrical signal output device. When in use, Figure 7 As shown, a light emitting element 21 is arranged on the upper circuit board 2, and an electronic component 31 for controlling the light emitting element 21 and electronic components 31 with other functions are arranged on the lower circuit board 3. An electrical signal is input from an electrical signal output device to the lower circuit board 3, and the lower circuit board 3 performs a logic operation according to the input electrical signal, and then transmits it to the upper circuit board 2 to control the light emitting element 21 on the upper circuit board 2. At this time, the heat generated by the light emitting element 21 on the upper circuit board 2 can be directly transferred to the heat sink 4, and diffused from the heat sink 4 to the external environment, and the heat generated by the electronic component 31 on the lower circuit board 3 can be transferred to the connector housing 1 and the heat sink 4, and heat is dissipated at the same time, thereby reducing the temperature resistance requirements of the electronic component 31.
[0059] As an embodiment of the present invention, the upper circuit board 2 is electrically connected to the lower circuit board 3 through the inter-board PIN pin 5, and the lower circuit board 3 is electrically connected to the electric signal output device through the connector PIN pin 6, thereby improving the efficiency of electric signal transmission between the upper circuit board 2 and the lower circuit board 3, and between the lower circuit board 3 and the electric signal output device. The inter-board PIN pin 5 and the connector PIN pin 6 can be made of metal, such as tin bronze alloy, and the length of the inter-board PIN pin 5 is determined according to the distance between the upper circuit board 2 and the lower circuit board 3, and the number is set according to different control circuits.
[0060] Furthermore, the inter-board PIN pins 5 are respectively welded to the upper circuit board 2 and the lower circuit board 3, and the connector PIN pins 6 are welded to the lower circuit board 3. The firm connection of the inter-board PIN pins 5 and the connector PIN pins 6 prevents the PIN pins from becoming loose with the components.
[0061] As an embodiment of the present invention, Figure 8 and Fig. 9 As shown, the connector housing 1 is provided with a first sealing surface 16 at the clamping position with the heat sink 4, and the heat sink 4 is provided with a second sealing surface 45 at the clamping position with the connector housing 1, and the first sealing surface 16 is sealed with the second sealing surface 45. The first sealing surface 16 and the second sealing surface 45 can be fixed and sealed by a sealant to enhance the sealing stability of the connection between the connector housing 1 and the heat sink 4. Here, the sealant can be a sealant having only a sealing and bonding function, or a thermally conductive adhesive having both a sealing and bonding function and a thermally conductive function can be used according to the need for thermal conductivity.
[0062] As an embodiment of the present invention, a positioning hole 22 is provided on the upper circuit board 2, and a positioning column 43 is provided on the heat sink 4. The positioning hole 22 matches the positioning column 43 to ensure the position accuracy between the upper circuit board 2 and the heat sink 4, stabilize the connection, and avoid misalignment.
[0063] As an embodiment of the present invention, a circuit board avoidance groove 33 is provided on the lower circuit board 3, and the end of the connector housing 1 that is clamped with the heat sink 4 is provided with a housing guide groove 11 and a housing limit groove 14 in sequence, and a fixing rib 44 is provided on the heat sink 4. The circuit board avoidance groove 33, the housing guide groove 11, and the housing limit groove 14 are all matched with the fixing rib 44, so that the lower circuit board 3 and the heat sink 4 will not interfere with each other when the connector housing 1 and the heat sink 4 are installed. The fixing rib 44 on the heat sink 4 passes through the housing guide groove 11 and arrives at the housing limit groove 14 and then rotates, so that the fixing rib 44 is clamped in the housing limit groove 14, thereby limiting the axial movement of the fixing rib 44 and preventing the connector housing 1 from falling out from under the heat sink 4.
[0064] The substrates of the upper circuit board 2 and the lower circuit board 3 have different heat generation according to different models, and can be ceramic substrates, embedded ceramic substrates or double-layer FR4 substrates. As an embodiment of the present invention, an upper thermally conductive adhesive 23 is provided on the side surface of the upper circuit board 2 close to the heat sink 4, and a lower thermally conductive adhesive 32 is provided on the two side surfaces of the lower circuit board 3. The upper thermally conductive adhesive 23 uses a thermally conductive adhesive to achieve the functions of heat conduction and bonding and fixing between the upper circuit board 2 and the heat sink 4. The lower thermally conductive adhesive 32 on the side panel of the lower circuit board 3 close to the connector housing 1 can use a thermally conductive adhesive or a common thermally conductive adhesive. The lower thermally conductive adhesive 32 on the side panel of the lower circuit board 3 close to the heat sink 4 uses a common thermally conductive adhesive with a higher thermal conductivity to enhance the heat transfer effect between the lower circuit board 3 and the connector housing 1 and the heat sink 4, and improve the heat dissipation rate.
[0065] As an embodiment of the present invention, a first heat sink 15 is provided on the side wall of the connector housing 1, and a second heat sink 41 is provided on the side wall of the heat sink 4. The first heat sink 15 and the second heat sink 41 can expand the heat dissipation area, enhance the heat dissipation effect, and strengthen the strength of the lamp holder.
[0066] In a relatively optimized embodiment of the present invention, the assembly process of the lamp holder is as follows: Figure 10-12As shown, the specific assembly process is as follows: the inter-board PIN pin 5, the connector PIN pin 6 and the connector housing 1 are integrally injection molded to form an assembly A; after the lower surface of the lower circuit board 3 is coated with the lower thermal conductive adhesive 32, the inter-board PIN pin 5 and the connector PIN pin 6 are passed through the welding holes on the lower circuit board 3, and the lower circuit board 3 is installed on the connector housing 1 of the assembly A. The lower circuit board 3 is welded to the inter-board PIN pin 5 and the connector PIN pin 6 by electric welding to form an assembly B; the assembly B is installed in the heat sink 4, and then the lower thermal conductive adhesive 32 is formed by glue filling between the connector housing 1 and the heat sink 4, and the upper thermal conductive adhesive 23 is coated on the lower surface of the upper circuit board 2, and the inter-board PIN pin 5 is passed through the welding holes on the upper circuit board 2, and the upper circuit board 2 is installed on the heat sink 4, and then the upper circuit board 2 is welded to the inter-board PIN pin 5 to form an assembly C. When in use, a light-emitting element 21 is arranged on the upper circuit board 2, and an electronic component 31 for controlling the light-emitting element 21 and other electronic components 31 with other functions are arranged on the lower circuit board 3. An electrical signal is input from the electrical signal output device to the lower circuit board 3, and the lower circuit board 3 performs a logical operation according to the input electrical signal, and then transmits it to the upper circuit board 2 to control the light-emitting element 21 on the upper circuit board 2. At the same time, a sealing ring 9 can be arranged on the heat sink 4 of the assembly C to form a heat sink 4 as shown in FIG. Figure 1 The assembly D shown is used to connect with other components of the lighting device.
[0067] As can be seen from the above description, the advantages of the lamp holder of the present invention are: the light-emitting element 21 is arranged on the upper circuit board 2, and the electronic component 31 is arranged on the lower circuit board 3, so that the light source board and the control board are separated, so that the control board has a larger space, which is convenient for the arrangement of various electronic components 31 to realize the multi-functional control of the lamp holder, or the cost of the lamp holder can be reduced by arranging low-cost, large-volume electronic components 31, so that the lamp holder has sufficient design margin; the heat generated by the light-emitting element 21 on the upper circuit board 2 is directly dissipated through the radiator 4, and the heat generated by the electronic component 31 on the lower circuit board 3 is dissipated through the connector housing 1 and the radiator 4 at the same time, thereby reducing the temperature resistance requirements of the electronic component 31 and further reducing the production cost; the upper circuit board 2 has good heat dissipation performance and has a large heat dissipation redundancy, and can be arranged with high-power light-emitting elements 21; the components of the lamp holder in the present invention have a compact structure, a small size, pressure and impact resistance, low cost, and a wide range of applications.
[0068] Based on the above-mentioned lamp holder of the present invention, the second aspect of the present invention provides a lighting module, including the above-mentioned lamp holder, a light-emitting element 21 is provided on the upper circuit board 2, and an electronic component 31 is provided on the lower circuit board 3. It should be noted that, according to the design of the lighting module, in addition to the light-emitting element 21, a small amount of electronic components can also be provided on the upper circuit board 2.
[0069] Furthermore, if Fig.13 , Fig.14 As shown, the lighting module also includes a lamp body matching structure 7 and a wire terminal connector 8. The lamp body matching structure 7, the lamp holder and the wire terminal connector 8 are connected in sequence. An anti-error structure 12 and an anti-dropping buckle 13 are provided on the side wall of the connector housing 1. An anti-error limiting groove 81 and an anti-dropping bayonet are provided on the wire terminal connector 8. A lamp holder clamping foot 42 is provided on the heat sink 4, wherein the anti-error structure 12 matches the anti-error limiting groove 81, the anti-dropping buckle 13 matches the anti-dropping bayonet, and the lamp holder clamping foot 42 matches the lamp body matching structure 7. The anti-dropping buckle 13 and the anti-dropping bayonet can prevent the lamp holder from falling off when matching with the wire terminal connector 8, and the anti-error structure 12 and the anti-error limiting groove 81 can prevent the lamp holder from being reversely inserted or non-matching connectors from being inserted when matching with the wire terminal connector 8. The shape and distribution of the lamp holder clamping foot 42 vary according to different types of lamp body matching structures 7 to prevent wrong installation.
[0070] As an embodiment of the present invention, Fig.13 As shown, a sealing ring 9 is provided at one end of the heat sink 4 connected to the lamp body matching structure 7. The sealing ring 9 is interference fit with the lamp body matching structure 7 to ensure the sealing of the lighting module.
[0071] Based on the above-mentioned lighting module of the present invention, the third aspect of the present invention provides a lighting device, including the above-mentioned lighting module. Therefore, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned lamp holder and lighting module embodiments, which will not be repeated here.
[0072] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any appropriate manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.
Claims
1. A lamp holder, characterized in that: It comprises a connector housing (1) and a heat sink (4), one end of the heat sink (4) being suitable for being snap-fitted with one end of the connector housing (1), the connector housing (1) being nested in the heat sink (4), a lower circuit board (3) being provided on the end of the connector housing (1) snap-fitted with the heat sink (4), and an upper circuit board (2) being provided on the outer side of the end of the heat sink (4) snap-fitted with the connector housing (1); Wherein, the upper circuit board (2) is electrically connected to the lower circuit board (3), and the lower circuit board (3) is electrically connected to the electrical signal output device; The lower circuit board (3) is provided with a circuit board avoidance groove (33); the end of the connector housing (1) that is clamped with the heat sink (4) is provided with a housing guide groove (11) and a housing limit groove (14) in sequence; the heat sink (4) is provided with a fixing rib (44); the circuit board avoidance groove (33), the housing guide groove (11) and the housing limit groove (14) are all matched with the fixing rib (44); the end of the heat sink (4) that is clamped with the connector housing (1) is provided with a partition; the upper circuit board (2) is located on a side of the partition away from the connector housing (1); and the lower circuit board (3) is located between the partition and the connector housing (1).
2. The lamp holder according to claim 1, characterized in that: The upper circuit board (2) and the lower circuit board (3) are electrically connected via inter-board PIN pins (5), and the lower circuit board (3) and the electrical signal output device are electrically connected via connector PIN pins (6).
3. The lamp holder according to claim 2, characterized in that: The inter-board PIN pins (5) are respectively welded to the upper circuit board (2) and the lower circuit board (3), and the connector PIN pins (6) are welded to the lower circuit board (3).
4. The lamp holder according to claim 1, characterized in that: The connector housing (1) is provided with a first sealing surface (16) at a clamping position with the heat sink (4), and the heat sink (4) is provided with a second sealing surface (45) at a clamping position with the connector housing (1), and the first sealing surface (16) and the second sealing surface (45) are sealedly connected.
5. The lamp holder according to any one of claims 1 to 4, characterized in that: The upper circuit board (2) is provided with a positioning hole (22), the heat sink (4) is provided with a positioning column (43), and the positioning hole (22) matches the positioning column (43).
6. The lamp holder according to any one of claims 1 to 4, characterized in that: An upper heat-conducting adhesive (23) is provided on one side of the upper circuit board (2) close to the heat sink (4), and a lower heat-conducting adhesive (32) is provided on both side surfaces of the lower circuit board (3).
7. The lamp holder according to any one of claims 1 to 4, characterized in that: A first heat sink (15) is provided on the side wall of the connector housing (1), and a second heat sink (41) is provided on the side wall of the heat sink (4).
8. A lighting module, characterized in that: The lamp holder comprises the lamp holder as claimed in any one of claims 1 to 7, wherein the upper circuit board (2) is provided with a light-emitting element (21), and the lower circuit board (3) is provided with an electronic component (31).
9. The lighting module according to claim 8, characterized in that: The lighting module also includes a lamp body matching structure (7) and a wire end connector (8), wherein the lamp body matching structure (7), the lamp holder and the wire end connector (8) are connected in sequence, the side wall of the connector housing (1) is provided with an anti-error structure (12) and an anti-dropout buckle (13), the wire end connector (8) is provided with an anti-error limiting groove (81) and an anti-dropout bayonet, and the heat sink (4) is provided with a lamp holder clamping foot (42), wherein the anti-error structure (12) matches the anti-error limiting groove (81), the anti-dropout buckle (13) matches the anti-dropout bayonet, and the lamp holder clamping foot (42) matches the lamp body matching structure (7).
10. The lighting module according to claim 9, characterized in that: A sealing ring (9) is provided at one end of the heat sink (4) connected to the lamp body matching structure (7); the sealing ring (9) is interference-fitted with the lamp body matching structure (7).
11. A lighting device, characterized in that: A lighting module comprising any one of claims 8 to 10.
Citation Information
Patent Citations
Intelligent power module for rail transportation vehicle
CN107818961A
Lamp holder, lighting module and lighting device
CN210135544U