CN111853692A - A lamp holder, lighting module and vehicle - Google Patents

Abstract

The invention provides a lamp holder, a lighting module and a vehicle, the lamp holder comprises a connector housing (1) and a radiator, the radiator comprises a radiator body (4), and the radiator body (4) has a One end is adapted to be clamped with one end of the connector housing (1), the connector housing (1) is nested in the radiator body (4), and the connector housing (1) A first groove (17) is provided on the end of the upper body that is clamped to the radiator body (4) and/or the side of the radiator body (4) that is in contact with the upper circuit board (2). A heat sink (18) is arranged in the first groove (17), and the lower circuit board (3) and/or the upper circuit board (2) are in contact with the heat sink (18). A heat sink contacting the lower layer circuit board and/or the upper layer circuit board is added on the connector housing and/or the heat sink body to further accelerate the heat dissipation speed of the lamp holder.

Description

A lamp holder, lighting module and vehicle

technical field

The present invention relates to a lighting device, in particular, to a lamp holder, a lighting module and a vehicle.

Background technique

LED has the characteristics of high brightness, rich color, low power consumption and long life, and is widely used in the automotive field, such as headlights, rear combination lights, car reading lights, etc. The LED lamp holder is a standardized detachable LED light source that integrates the LED light source, circuit and installation structure. When in use, it can be directly screwed in and fixed on the lamp body or reflector. The plug-in structure is electrically connected to the outside, and 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 sockets with various functions such as tail lights, brake lights, turn signals, reversing lights and fog lights.

Because the size of the LED lamp holder is limited by regulations, and in order to achieve the miniaturization and multi-function of the vehicle lighting device, it is necessary to arrange both the LED and a large number and variety of components on the substrate with limited space. In addition, the small product structure means that the heat dissipation of the LED light source and components will be relatively more difficult, and the excessive concentration of the heating area may increase the temperature of the LED, which will shorten its life, or the luminous flux will not meet the regulations and other problems. Therefore, there is an urgent need to provide an LED lamp holder that can increase the substrate area or component arrangement space while satisfying the miniaturization and multi-function of the product, and can efficiently dissipate the heat generated by the LED light source and the components to the outside. .

SUMMARY OF THE INVENTION

The problem to be solved in one aspect of the present invention is to provide a lamp holder, which can improve the heat dissipation effect on the basis of realizing the basic function of the lamp holder.

The technical problem to be solved by the present invention is to provide a lighting module, which has a more perfect heat dissipation function on the basis of realizing lighting.

Further, the technical problem to be solved by the present invention is to provide a vehicle whose lighting module has better heat dissipation effect on the basis of realizing lighting.

In order to achieve the above object, one aspect of the present invention provides a lamp socket, which includes a connector housing and a radiator, the radiator includes a radiator body, and one end of the radiator body is suitable for connecting with the connector One end of the shell is clamped, the connector shell is nested in the radiator body, the end of the connector shell that is clamped with the radiator body is provided with a lower circuit board, the An upper-layer circuit board is arranged on the outer side of one end of the radiator body that is clamped with the connector housing; the upper-layer circuit board is electrically connected with the lower-layer circuit board, and the lower-layer circuit board is electrically connected with an electrical signal output device; One end of the connector housing that is clamped with the radiator body and/or the side of the radiator body that is in contact with the upper circuit board is provided with a first groove, and the first groove is provided with a first groove. A heat sink, the lower circuit board and/or the upper circuit board are in contact with the heat sink.

Preferably, the heat sink is an aluminum heat sink.

Specifically, the heat dissipation body is a block body with flat upper and lower surfaces; or the heat dissipation body has a flat upper surface and a plurality of heat dissipation columns on the lower surface.

Preferably, thermal conductive glue is provided between the first groove and the heat sink.

Preferably, an upper thermally conductive adhesive is provided on one side of the upper circuit board close to the radiator body, and a lower thermally conductive adhesive is provided on both sides of the lower circuit board.

Preferably, the side wall of the connector housing is provided with a first heat sink, and the side wall of the radiator body is provided with a second heat sink.

Preferably, the upper-layer circuit board and the lower-layer circuit board are electrically connected through inter-board PIN pins, and the lower-layer circuit board and the electrical signal output device are electrically connected through a connector PIN pin.

Specifically, the inter-board PIN pins and the connector PIN pins are both metal inserts, and the lower ends of the inter-board PIN pins and the middle of the connector PIN pins are both embedded in the connector housing The parts of the inter-board PIN pins and the connector PIN pins embedded in the connector housing are all provided with holes, grooves, notches or protrusions.

Preferably, the inter-board PIN pins are respectively welded with the upper-layer circuit board and the lower-layer circuit board, and the connector PIN pins are welded with the lower-layer circuit board.

Specifically, the hole is a round hole, a square hole or a waist-shaped hole.

Preferably, the connector housing is provided with a first sealing surface at the engagement with the radiator body, and the radiator body is provided with a second sealing surface at the engagement with the connector housing A sealing surface, the first sealing surface is in sealing connection with the second sealing surface.

Preferably, the upper circuit board is provided with positioning holes, the heat sink body is provided with positioning posts, and the positioning holes are matched with the positioning posts.

Preferably, a circuit board avoidance groove is provided on the lower circuit board, and a casing guide groove and a casing limit groove are arranged at one end of the connector housing and the radiator body in sequence, and the radiator The main body is provided with a fixing rib, and the circuit board avoiding groove, the casing guide groove and the casing limiting groove are all matched with the fixing rib.

Another aspect of the present invention also provides a lighting module, the lighting module includes the lamp holder described in any one of the above, the upper circuit board is provided with light-emitting elements, and the lower circuit board is provided with electronic components .

Further, the lighting module further includes a lamp body matching structure, the lamp body matching structure is connected with the lamp socket, the radiator body is provided with a lamp socket clip, and the lamp socket clip is connected to the lamp body matching structure.

Preferably, the radiator body and the lamp socket clip are two-color injection molded integral parts.

Preferably, the radiator body is provided with a protrusion protruding from the side surface of the radiator body, and the inner side of the lamp socket clip of the lamp socket is provided with a concave cavity that can cooperate with the protrusion.

Preferably, an annular groove is formed on the radiator body, an annular flange is formed on the radiator body, and a second groove that can be mutually embedded with the radiator body is formed on the lamp socket clip.

Further preferably, at least one through groove is formed on the annular flange, and a first protrusion that can be inserted into the through groove is formed on the lamp socket clip.

Further preferably, a third groove is provided in the annular groove, and a second protrusion that can be inserted into the third groove is provided on the inner side of the lamp socket clip.

Preferably, a sealing ring is provided on the end of the heat sink body connected with the matching structure of the lamp body, and the sealing ring is in an interference fit with the matching structure of the lamp body.

Further, the lighting module also includes a wire end connector, the wire end connector is connected to the lamp socket, and the side wall of the connector housing is provided with an error-proof structure and an anti-drop buckle. The wire end connector is provided with an error-proof limit slot and an anti-drop-off bayonet, the error-proof structure is matched with the error-proof limit slot, and the drop-proof clip is matched with the drop-off bayonet.

A third aspect of the present invention further provides a vehicle, which includes the lighting module described in any one of the above.

Through the above-mentioned technical scheme, the beneficial effects of the present invention are:

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 board and the control board are separated and arranged, so that the control board has a large space and is convenient for various electronic components. The multi-function control of the lamp holder can be realized by the setting of the lamp holder, or the cost of the lighting equipment can be reduced by setting low-cost and large-volume electronic components, and the lamp holder has sufficient design margin;

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 shell and the radiator at the same time, which reduces the temperature resistance requirements of the electronic components. further reduce production costs;

3. Adding a heat sink in contact with the lower circuit board and/or the upper circuit board on the connector housing and/or the radiator body can further accelerate the heat dissipation speed of the lamp holder. The heat sink can have a flat upper surface and a lower surface. There are several special-shaped bodies of heat dissipation columns, each heat dissipation column is arranged below each heat-generating electronic component, and the length of each heat dissipation column can be set according to the heat generated by each electronic component, so that the heat dissipation speed of each electronic component is basically the same.

Description of drawings

1 is a perspective structural view of an embodiment of a lamp holder of the present invention;

Fig. 2 is the bottom view of the lamp holder shown in Fig. 1;

Figure 3 is a side view of the lamp holder shown in Figure 1;

Fig. 4 is the top view of the lamp holder shown in Fig. 1;

Fig. 5 is the sectional view of the A-A direction of Fig. 4;

6 is a perspective structural view of an embodiment of a heat sink in the present invention;

Fig. 7 is the circuit distribution diagram of the lamp holder in Fig. 1;

Figure 8 is a top view of an embodiment of the connector housing of the present invention;

9 is a bottom view of an embodiment of a heat sink body in the present invention;

10 is a schematic structural diagram of an assembly A formed by an inter-board PIN pin, a connector PIN pin, a heat sink, and a connector housing in an embodiment of the lamp holder of the present invention;

FIG. 11 is a schematic structural diagram of the assembly B formed by the assembly A shown in FIG. 10 and the lower circuit board;

FIG. 12 is a schematic structural diagram of the assembly C formed by the assembly B shown in FIG. 11 , the radiator body and the upper circuit board;

13 is a schematic view of the installation of an embodiment of the lighting module of the present invention;

14 is a perspective structural view of an embodiment of the connector housing in the present invention;

15 is a schematic top view of the first embodiment of the two-color injection molding of the radiator body and the lamp socket clip according to the present invention;

16 is a schematic structural diagram of the second embodiment of the two-color injection molding of the radiator body and the lamp socket clips in the present invention;

Figure 17 is a schematic diagram of the exploded structure of the radiator body and the lamp socket clip in Figure 16;

FIG. 18 is a schematic structural diagram of the third embodiment of the two-color injection molding of the radiator body and the lamp socket clip according to the present invention;

Figure 19 is a schematic diagram of the exploded structure of the radiator body and the lamp socket clip in Figure 18;

FIG. 20 is a schematic structural diagram of the fourth embodiment of the two-color injection molding of the radiator body and the lamp socket clip according to the present invention;

FIG. 21 is a schematic diagram of the exploded structure of the heat sink body and the lamp socket clip in FIG. 20 .

Description of reference numerals

1 Connector housing 11 Housing guide groove

12 Error-proof structure 13 Anti-drop buckle

14 Housing limit slot 15 The first heat sink

16 The first sealing surface 17 The first groove

18 heat sink 181 heat sink

2 Upper circuit board 21 Light emitting element

22 Positioning hole 23 Thermal glue on

3 Lower circuit board 31 Electronic components

32 Lower thermal adhesive 33 Circuit board avoidance slot

4 Heat sink body 41 Second heat sink

42 Lamp socket clip 43 Positioning column

44 Fixing ribs 45 Second sealing surface

46 Raised 47 Ring Groove

48 Ring flange 481 Through groove

49 The second groove 410 The first bump

411 The third groove 412 The second bump

5 PIN pins between boards 51 first through holes

6 plug-in PIN pins 61 second through hole

7 lamp body matching structure 8-wire terminal connector

81 Error-proof limit groove 9 sealing ring

10 partitions

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to 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. .

The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or It is implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "connection" and "clamping" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It is an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

A lamp holder provided by the first aspect of the present invention, as shown in Figures 1-5, includes a connector housing 1 and a radiator, the radiator includes a radiator body 4, and one end of the radiator body 4 is suitable for connecting with One end of the connector housing 1 is clamped, the connector housing 1 is nested in the radiator body 4, and the end of the connector housing 1 that is clamped with the radiator body 4 is provided with a lower circuit board 3, and the radiator body 4 is provided with a lower circuit board 3. 4. An upper layer circuit board 2 is provided on the outer side of one end that is clamped with the connector housing 1; wherein, the upper layer circuit board 2 is electrically connected with the lower layer circuit board 3, and the lower layer circuit board 3 is electrically connected with the electrical signal output device.

It should be noted that the end of the radiator body 4 that is engaged with the connector housing 1 may be provided with a separator 10 , and the upper circuit board 2 is provided on the side of the separator 10 away from the connector housing 1 , and the separator 10 is connected to the connector housing 1 . A lower circuit board 3 is arranged between the plug-in housings 1 . In the present invention, the clamping connection between the radiator body 4 and the connector housing 1 may be that after the radiator body 4 and the connector housing 1 are inserted into each other and rotated and clamped, they are then sealed and fixed by a sealant, or they may be used for heat dissipation. The radiator body 4 and the connector housing 1 are provided with matching buckles and slots, or other ways to realize the snap connection between the radiator body 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 radiator body 4 and other components of the lamp holder can be fastened by means of integral injection molding, gluing, welding, etc. Plastics [The main components of thermally conductive plastics include matrix materials and fillers, matrix materials include PPS ((polyphenylene sulfide), PA6/PA66 (nylon 6/nylon 66), LCP (liquid crystal polymer), TPE (thermoplastic elastomer), PC (polycarbonate), PP (polypropylene), PPA (polyphthalamide), PEEK (polyetheretherketone), etc.; fillers include AlN, SiC, Al ₂ O ₃ , graphite, fibrous high thermal conductivity carbon powder, Scale-like high thermal conductivity carbon powder, etc.] are formed, and the radiator body 4 is formed of a heat-dissipating material.

Through the lamp holder of the above basic technical solution of the present invention, after connecting the connector housing 1 and the lower circuit board 3, the connector housing 1 is clamped to the radiator body 4, and then the upper layer circuit board 2 and the radiator body are connected. 4 is connected, and the upper circuit board 2 is electrically connected with the lower circuit board 3, and the lower circuit board 3 is electrically connected with the electrical signal output device. When in use, as shown in FIG. 5, a light-emitting element 21 is set on the upper circuit board 2, Electronic components 31 for controlling the light-emitting element 21 and electronic components 31 for other functions are arranged on the lower circuit board 3, and electrical signals are input from the electrical signal output device to the lower circuit board 3, and the lower circuit board 3 performs logical operations according to the input electrical signals. , and then transmitted 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 elements 21 on the upper circuit board 2 can be directly transferred to the radiator body 4 and diffused from the radiator body 4 to the external environment, and the heat generated by the electronic components 31 on the lower circuit board 3 can be transferred to the connection The plug-in housing 1 and the radiator body 4 simultaneously dissipate heat, thereby reducing the temperature resistance requirements of the electronic components 31 .

As an embodiment of the present invention, as shown in FIG. 5 and FIG. 10 , the end of the connector housing 1 that is engaged with the heat sink body 4 is provided with a first groove 17 , and the first groove 17 has an inner groove 17 . There is a heat sink 18 , and the heat sink 18 is in contact with the lower circuit board 3 . The heat sink 18 can speed up the heat dissipation speed of the electronic components 31 located on the lower circuit board 3 . Preferably, the material of the heat sink 18 can be aluminum with good heat dissipation performance.

The shape of the heat sink 18 can be determined according to the heat distribution on the lower circuit board 3 . When the heat distribution on the lower circuit board 3 is uniform, the heat sink 18 can be a block with flat upper and lower surfaces; The calorific value of each electronic component 31 varies greatly, resulting in uneven heat distribution on the lower circuit board 3, the radiator 18 can be a special-shaped body with a flat upper surface and a number of radiating columns 181 on the lower surface, as shown in Figure 6 As shown, each heat dissipation column 181 is arranged below each heat-generating electronic component 31. According to the difference in the amount of heat generated by each electronic component 31, the length of each heat dissipation column 181 is also different, and the length of each heat dissipation column 181 corresponds to the corresponding electronic component. The heating power of the device 31 is proportional.

Further, thermally conductive glue is provided between the first groove 17 and the heat sink 18 to further improve the heat dissipation efficiency.

As an embodiment of the present invention, the side of the radiator body 4 in contact with the upper circuit board 2 (that is, on the above-mentioned partition plate 10 ) may also have a first groove 17 , and a heat sink 18 is arranged in the first groove 17 . The heat sink 18 is in contact with the upper circuit board 2 , and the function and form of the heat sink 18 are the same as the function and form of the heat sink 18 provided on the connector housing 1 , and will not be repeated here.

As an embodiment of the present invention, as shown in FIG. 5 , the upper-layer circuit board 2 and the lower-layer circuit board 3 are electrically connected through the inter-board PIN pins 5 , and the lower-layer circuit board 3 and the electrical signal output device are electrically connected through the connector PIN pins 6 , to improve the efficiency of electrical signal transmission between the upper-layer circuit board 2 and the lower-layer circuit board 3, and between the lower-layer circuit board 3 and the electrical signal output device. The length of the inter-board PIN pins 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.

The inter-board PIN 5 and the connector PIN 6 can use metal inserts, such as tin bronze alloy, the lower end of the inter-board PIN 5 and the middle of the connector PIN 6 are embedded in the connector housing 1 . During processing, the inter-board PIN pin 5 and the connector PIN pin 6 are loaded into the mold of the connector housing 1, and then injection-molded together with the connector housing 1, so that the inter-board PIN pin 5 and the connector PIN pin 6 It has a certain binding force with the connector housing 1 . However, due to the limited structural space of the lamp holder, the inter-board PIN pin 5 and the connector PIN pin 6 can only be made into a straight rod-shaped structure, but cannot be made into a bent structure. Pin 5, PIN 6 of the connector and the connector housing 1 are prone to loosening or even falling out due to the small bonding force, which is a potential safety hazard. In view of this, as shown in FIG. 5 and FIG. 7 , holes or grooves or notches or protrusions are provided in the part where the PIN pins 5 and the connector PIN pins 6 are embedded in the connector housing 1 between the boards. So that when the PIN pin 5 between the boards, the PIN pin 6 of the connector and the connector housing 1 are integrally injection molded, the injection molding material of the connector housing 1 can enter the hole or groove or gap (or the injection molding material covers the protrusion), Finally, it is integrally formed with the PIN pin 5 between the boards and the PIN pin 6 of the connector. At this time, along the extension direction of the PIN pin 5 between the boards and the PIN pin 6 of the connector, the PIN pin 5 and the connector It is subjected to the wrapping force wrapped by the connector housing 1, and also to the structural force generated by the injection molding material inside and outside the hole, groove or notch (or the structural force generated by the protrusion on the injection molding material), making it difficult for the two to loosen. , unless the structure is damaged and the PIN pin is broken, it may come out. The structure of the PIN pin 5 between the boards and the PIN pin 6 of the connector is compact and flexible, and the PIN pin structure can be greatly improved in a limited space without increasing the structure of the PIN pin too much, and the bonding force between the PIN pin 1 and the connector housing 1 can be greatly improved. Effective fixation can be achieved between the PIN pin and the connector housing 1 .

Preferably, the shape of the above-mentioned hole may be a round hole, a square hole or a waist-shaped hole or the like. As an embodiment of the present invention, the hole on the PIN pin 5 between the boards is the first through hole 51 , the hole on the PIN pin 6 of the connector is the second through hole 61 (as shown in FIG. 5 ), and the first through hole The shapes of the 51 and the second through hole 61 may be the same or different.

Further, the inter-board PIN pins 5 are respectively welded with the upper layer circuit board 2 and the lower layer circuit board 3 , and the connector PIN pins 6 are welded with the lower layer circuit board 3 . The firm connection of the PIN pin 5 between the boards and the PIN pin 6 of the connector prevents the PIN pin from loosening with each component.

As an embodiment of the present invention, as shown in FIG. 8 and FIG. 9 , the connector housing 1 is provided with a first sealing surface 16 at the clamping position with the radiator body 4 , and the radiator body 4 is connected to the radiator body 4 with a first sealing surface 16 . A second sealing surface 45 is provided at the clipping position of the plug-in housing 1 , and the first sealing surface 16 is in sealing connection 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, so as to enhance the sealing stability of the connection between the connector housing 1 and the heat sink body 4 . Here, the sealant may be a sealant having only a sealing and bonding function, or a heat-conducting adhesive having both sealing and heat-conducting functions may be used according to thermal conductivity requirements.

As an embodiment of the present invention, as shown in FIG. 1 , the upper circuit board 2 is provided with positioning holes 22 , the heat sink body 4 is provided with positioning posts 43 , and the positioning holes 22 are matched with the positioning posts 43 to ensure the upper circuit The positional accuracy between the plate 2 and the radiator body 4 is stable, and the phenomenon of dislocation is avoided.

As an embodiment of the present invention, as shown in FIG. 9 and FIG. 11 , the lower circuit board 3 is provided with a circuit board avoidance groove 33 , and one end of the connector housing 1 and the radiator body 4 are sequentially provided with The casing guide groove 11 and the casing limit groove 14, the radiator body 4 is provided with a fixing rib 44, the circuit board avoidance groove 33, the casing guide groove 11, and the casing limit groove 14 are all matched with the fixing rib 44. When the connector housing 1 and the radiator body 4 are installed, the lower circuit board 3 and the radiator body 4 will not interfere, and the fixing ribs 44 on the radiator body 4 pass through the housing guide groove 11 and reach the housing limit groove 14 Then rotate, so that the fixing rib 44 snaps into the housing limiting groove 14 , restricts the axial movement of the fixing rib 44 , and prevents the connector housing 1 from falling out from the lower part of the radiator body 4 .

The substrates of the upper-layer circuit board 2 and the lower-layer circuit board 3 have different heating values according to different models, and can be ceramic substrates, ceramic-embedded substrates, or double-layer FR4 substrates. As an embodiment of the present invention, as shown in FIG. 5 , an upper thermally conductive adhesive 23 is provided on one side of the upper circuit board 2 close to the radiator body 4 , and a lower circuit board 3 is provided on both sides of the lower circuit board 3 . Thermal paste 32. The upper thermally conductive adhesive 23 uses a thermally conductive adhesive to achieve the effect of heat conduction and bonding and fixing between the upper circuit board 2 and the radiator body 4 , and the lower thermally conductive adhesive 32 on the side panel of the lower circuit board 3 close to the connector housing 1 A thermally conductive adhesive can be used, or an ordinary thermally conductive adhesive can be used. The heat transfer effect between the plug-in housing 1 and the radiator body 4 increases the rate of heat dissipation.

As an embodiment of the present invention, as shown in FIGS. 10-12 , the side wall of the connector housing 1 is provided with a first heat sink 15 , and the side wall of the radiator body 4 is provided with a second heat sink 41 . The first heat sink 15 and the second heat sink 41 can expand the heat dissipation area, enhance the heat dissipation effect, and at the same time enhance the strength of the lamp holder.

In a relatively optimized embodiment of the present invention, the assembly process of the lamp holder is shown in Figures 10-12. The specific assembly process is as follows: connect the PIN pin 5 between the boards, the PIN pin 6 of the connector to the connector housing 1 One-piece injection molding is performed, and the heat sink 18 is installed after coating the thermally conductive adhesive in the first groove 17 of the connector housing 1 to form an assembly A; after the lower surface of the lower circuit board 3 is coated with the thermally conductive adhesive 32, Pass the inter-board PIN 5 and the connector PIN 6 through the welding holes on the lower circuit board 3, and install the lower circuit board 3 on the connector housing 1 of the assembly A and closely fit the heat sink. Solder the lower circuit board 3 and the PIN pin 5 between the boards and the PIN pin 6 of the connector firmly by electric welding to form an assembly B; put the assembly B into the radiator body 4, and then connect the plug-in housing 1 and the radiator body 4 The lower surface of the upper circuit board 2 is coated with the thermal conductive adhesive 23, so that the PIN pins 5 between the boards pass through the welding holes on the upper circuit board 2, and the upper circuit board 2 is installed on the On the radiator body 4, the upper circuit board 2 and the PIN pins 5 between the boards are then welded firmly to form an assembly C. When in use, the light-emitting element 21 is arranged on the upper circuit board 2, the electronic components 31 for controlling the light-emitting element 21 and the electronic components 31 for other functions are arranged on the lower circuit board 3, and the electrical signal is input from the electrical signal output device to the lower circuit. Board 3, the lower circuit board 3 performs logical operations 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, and a sealing ring can be set on the radiator body 4 of the assembly C at the same time 9 to form an assembly D as shown in Figure 1 for connection with other components of the lighting device.

It can be seen from the above description that the advantages of the lamp holder of the present invention lie in that: in the first aspect, the light-emitting element 21 is arranged on the upper circuit board 2, and the electronic components 31 are arranged on the lower circuit board 3, so that the light source circuit board and the control The electric boards are separated and arranged, so that the control electric board has a large space, which is convenient for the arrangement of various electronic components 31 to realize the multi-function control of the lamp holder, or the low-cost and large-volume electronic components 31 can be arranged to reduce the lamp holder. In the second aspect, the heat generated by the light-emitting elements 21 on the upper circuit board 2 is directly dissipated through the radiator body 4, and the large amount of heat generated by the electronic components 31 on the lower circuit board 3 is generated. Part of the heat is absorbed by the radiator 18 and finally dissipated through the connector housing 1 and the radiator body 4, which greatly reduces the temperature resistance requirements of the electronic components 31 and can further reduce the production cost; the upper circuit board 2 has good heat dissipation performance, with Larger heat dissipation redundancy, high-power light-emitting elements 21 can be arranged; thirdly, heat dissipation in contact with the lower circuit board 3 and/or the upper circuit board 2 is added on the connector housing 1 and/or the radiator body 4 The heat dissipation body 18 can further speed up the heat dissipation speed of the lamp holder; the heat dissipation body 18 can be a special-shaped body with a flat upper surface and a number of heat dissipation columns 181 on the lower surface. The length of each heat dissipation column 181 is set according to the amount of heat generated by each electronic component 31 , so that the heat dissipation power of each electronic component 131 is basically the same.

On the basis of the above-mentioned lamp holder of the present invention, the second aspect of the present invention provides a lighting module, the lighting module comprises the above-mentioned lamp holder, the upper circuit board 2 is provided with a light-emitting element 21 , and the lower circuit board 3 is provided with a light-emitting element 21 . Electronic components 31 are provided. It should be noted that, according to the design of the lighting module, in addition to the light-emitting elements 21 , the upper circuit board 2 may also be provided with a small number of electronic components.

Further, as shown in FIG. 13 , the lighting module further includes a lamp body matching structure 7 . The lamp body matching structure 7 is fixed on the lamp body and is connected with the lamp socket. The radiator body 4 is provided with a lamp socket clip 42 . , the lamp socket clip 42 is matched with the lamp body matching structure 7 to connect the lamp socket and the lamp body matching structure 7 . The shape and distribution of the lamp socket pins 42 are different according to different types of lamp body matching structures 7 to prevent wrong installation.

In order to meet the requirements of vibration regulations and realize the firm installation of the lamp holder and the lamp body, the lamp holder clip 42 needs to have sufficient strength. Since the lamp holder clip 42 is integrally formed on the radiator body 4, if the radiator body 4 is made of metal Material, the strength of the lamp holder clip 42 can be guaranteed, but the weight of the lamp holder will increase; when the radiator body 4 is made of thermally conductive plastic, the weight of the lamp body will be reduced, but the strength of the thermally conductive plastic is not high, in the matching structure with the lamp body. 7. During assembly or use of the lamp body, there is a risk of breakage of the lamp socket pins 42. Therefore, as an embodiment of the present invention, the lamp socket clips 42 and the radiator body 4 are two-color injection molded integral parts, and the material of the radiator body 4 can be selected from materials with good thermal conductivity, such as thermally conductive plastic, and the lamp socket clips 42 The material of the radiator can be selected from high-strength materials, such as 30% glass fiber reinforced polypropylene [PP+30% GF (glass fiber)], which not only ensures the heat dissipation performance of the radiator, but also ensures the mechanical performance.

Further, in order to enhance the bonding strength between the two materials of the lamp socket clip 42 and the radiator body 4 , the two-color injection molding of the radiator body 4 and the lamp socket clip 42 has various expressions. It should be noted that the radiator body 4 and the lamp socket clips 42 in Fig. 15-Fig. 21 are both integral two-color injection molding, and the two are one piece. The decomposed schematic diagram shown in the combined form, the following description is also based on the detailed structure description of the two in the case of imaginary separation.

As a first form of expression, as shown in FIG. 15 , a protrusion 46 protruding from the side surface of the heat sink body 4 is formed on the radiator body 4 , and a cavity that can be matched with the protrusion 46 is formed on the inner side of the lamp socket clip 42 , the outer surface of the protrusion 46 is in complete contact with the inner surface of the cavity.

As a second form of expression, as shown in FIGS. 16 and 17 , an annular groove 47 is formed on the radiator body 4 , and the annular groove 47 is formed with an annular flange 48 on the radiator body 4 . A second groove 49 that can be embedded with the radiator body 4 is formed, that is, the upper and lower surfaces of the annular flange 48 are respectively in contact with the upper and lower surfaces of the second groove 49 of the lamp socket clip 4, and the lower surface of the lamp socket clip 42 is formed. The surface is in contact with the lower surface of the annular groove 47 of the heat sink body 4 .

Further, in order to strengthen the bonding strength between the two materials of the radiator body 4 and the lamp socket clip 42 , two through grooves 481 are formed on the annular flange 48 , and the lamp socket clip 42 is formed with two through grooves that can be embedded in the through grooves. The first bump 410 of 481 , the outer surface of the first bump 410 is in contact with the inner surface of the through groove 481 .

As a third form of expression, as shown in FIGS. 18 and 19 , the difference from the second form of expression above is that four through grooves 481 are formed on the annular flange 48 , and four through grooves 481 are formed on the lamp socket clip 42 . The number of the first bumps 410 and the number of the through grooves 481 and the first bumps 410 can be increased to improve the bonding strength between the two materials of the lamp socket clip 42 and the heat sink body 4 .

As a fourth expression form, as shown in FIG. 20 and FIG. 21 , the difference from the second expression form above is that a third groove 411 is formed in the annular groove 47 , and correspondingly, the inner side of the lamp socket clip 42 A second bump 412 that can be inserted into the third groove 411 is formed, and the outer surface of the second bump 412 can be in contact with the inner surface of the third groove 411 to further increase the lamp socket pins 42 and the heat sink body 4 The bond strength between two materials.

As an embodiment of the present invention, as shown in FIG. 13 and FIG. 14 , the lighting module further includes a wire end connector 8 , the lamp holder is connected with the wire end connector 8 , and the side wall of the connector housing 1 is provided with There is an anti-error structure 12 and an anti-dropping buckle 13. The wire terminal connector 8 is provided with an anti-error limit slot 81 and an anti-drop bayonet (not shown in the figure). Among them, the anti-error structure 12 and the anti-error limit The slot 81 matches, the anti-dropping buckle 13 matches the anti-dropping bayonet, and the anti-dropping buckle 13 and the anti-dropping bayonet can prevent the lamp holder from falling off when the lamp holder is matched with the wire end connector 8. The limiting slot 81 can prevent the lamp socket from being inserted backwards or the non-pairing plug-in when mated with the wire-terminated connector 8 .

As an embodiment of the present invention, as shown in FIG. 13 , the end of the radiator body 4 connected to the lamp body matching structure 7 is provided with a sealing ring 9 , and the sealing ring 9 has an interference fit with the lamp body matching structure 7 to ensure lighting. The tightness of the module.

On the basis of the above-mentioned lighting module of the present invention, a third aspect of the present invention provides a vehicle, which includes the above-mentioned lighting module. Therefore, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments of the lamp holder and the lighting module, which will not be repeated here.

The preferred embodiments of the present invention have been described above in detail with reference to the accompanying drawings, however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, a variety of simple modifications can be made to the technical solutions of the present invention, including combining various specific technical features in any suitable manner. No further explanation is required. However, these simple modifications and combinations should also be regarded as the contents disclosed in the present invention, and all belong to the protection scope of the present invention.

Claims (23)

1. The lamp holder is characterized by comprising a connector shell (1) and a radiator, wherein the radiator comprises a radiator body (4), one end of the radiator body (4) is suitable for being clamped with one end of the connector shell (1), the connector shell (1) is nested in the radiator body (4), a lower circuit board (3) is arranged at one end, clamped with the radiator body (4), of the connector shell (1), and an upper circuit board (2) is arranged on the outer side of one end, clamped with the connector shell (1), of the radiator body (4); the upper layer circuit board (2) is electrically connected with the lower layer circuit board (3), and the lower layer circuit board (3) is electrically connected with an electric signal output device;

One end of the connector shell (1) connected with the radiator body (4) in a clamped mode and/or one side of the radiator body (4) contacted with the upper-layer circuit board (2) are/is provided with a first groove (17), a radiator (18) is arranged in the first groove (17), and the lower-layer circuit board (3) and/or the upper-layer circuit board (2) are/is contacted with the radiator (18).

2. A socket as claimed in claim 1, characterised in that the heat sink (18) is an aluminium heat sink.

3. The lamp socket according to claim 1, wherein the heat sink (18) is a block body with flat upper and lower surfaces; or

The upper surface of the heat dissipation body (18) is flat, and the lower surface of the heat dissipation body is provided with a plurality of heat dissipation columns (181).

4. A lamp holder as claimed in claim 1, characterized in that a thermally conductive glue is provided between the first recess (17) and the heat sink (18).

5. A lamp holder as claimed in any one of claims 1 to 4, wherein an upper heat-conducting glue (23) is provided on one side surface of the upper circuit board (2) close to the heat sink body (4), and a lower heat-conducting glue (32) is provided on both side surfaces of the lower circuit board (3).

6. A lampholder as claimed in any one of claims 1 to 4, characterized in that the connector housing (1) is provided with first cooling fins (15) on a side wall and the heat sink body (4) is provided with second cooling fins (41) on a side wall.

7. A lampholder as claimed in any one of claims 1 to 4, characterized in that the upper circuit board (2) and the lower circuit board (3) are electrically connected by an inter-board PIN (5), and the lower circuit board (3) and the electrical signal output means are electrically connected by a connector PIN (6).

8. The lampholder according to claim 7, characterized in that the board-to-board PIN PINs (5) and the connector PIN PINs (6) are metal inserts, the lower ends of the board-to-board PIN PINs (5) and the middle portions of the connector PIN PINs (6) are embedded in the connector housing (1), and the portions of the board-to-board PIN PINs (5) and the connector PIN PINs (6) embedded in the connector housing (1) are provided with holes, grooves, notches or protrusions.

9. A lampholder as claimed in claim 8, characterized in that the interplate PIN PINs (5) are soldered to the upper and lower circuit boards (2, 3), respectively, and the connector PIN PINs (6) are soldered to the lower circuit board (3).

10. A lamp holder as claimed in claim 8, characterized in that the hole is a round hole, a square hole or a kidney-shaped hole.

11. A socket according to any one of claims 1 to 4, wherein the connector housing (1) is provided with a first sealing surface (16) at the location of engagement with the heat sink body (4), and the heat sink body (4) is provided with a second sealing surface (45) at the location of engagement with the connector housing (1), the first sealing surface (16) being in sealing connection with the second sealing surface (45).

12. The lamp holder according to any one of claims 1 to 4, wherein a positioning hole (22) is formed on the upper circuit board (2), a positioning post (43) is formed on the heat sink body (4), and the positioning hole (22) is matched with the positioning post (43).

13. The lamp holder according to any one of claims 1 to 4, wherein a circuit board avoiding groove (33) is formed in the lower circuit board (3), a housing guide groove (11) and a housing limiting groove (14) are sequentially formed in one end of the connector housing (1) clamped with the heat sink body (4), a fixing rib (44) is formed in the heat sink body (4), and the circuit board avoiding groove (33), the housing guide groove (11) and the housing limiting groove (14) are matched with the fixing rib (44).

14. A lighting module, characterized in that, comprising the lamp socket according to any one of claims 1 to 13, the upper circuit board (2) is provided with light emitting elements (21), and the lower circuit board (3) is provided with electronic components (31).

15. The lighting module of claim 14, further comprising a lamp body engaging structure (7), wherein the lamp body engaging structure (7) is connected to the lamp holder (8), and the heat sink body (4) is provided with a lamp holder engaging pin (42), wherein the lamp holder engaging pin (42) is matched with the lamp body engaging structure (7).

16. The lighting module of claim 15, wherein the heat sink body (4) and the socket pins (42) are a two-shot molded unitary piece.

17. The lighting module of claim 15, wherein the heat sink body (4) is provided with a protrusion (46) protruding from a side surface of the heat sink body (4), and a cavity capable of being engaged with the protrusion (46) is provided inside the socket locking pin (42) of the socket.

18. The lighting module of claim 15, wherein the heat sink body (4) is provided with an annular groove (47), the heat sink body (4) is provided with an annular flange (48), and the socket pins (42) are provided with second grooves (49) capable of being embedded into the heat sink body (4).

19. The lighting module according to claim 18, wherein the annular flange (48) is provided with at least one through slot (481), and the socket engaging pin (42) is provided with a first protrusion (410) capable of being inserted into the through slot (481).

20. The lighting module as claimed in claim 18, wherein a third recess (411) is provided in the annular groove (47), and a second projection (412) capable of being inserted into the third recess (411) is provided on the inner side of the socket engaging pin (42).

21. The lighting module of claim 15, wherein a sealing ring (9) is disposed at an end of the heat sink body (4) connected to the lamp body fitting structure (7), and the sealing ring (9) is in interference fit with the lamp body fitting structure (7).

22. The lighting module according to claim 14, further comprising a wire end connector (8), wherein the wire end connector (8) is connected to the socket, the sidewall of the connector housing (1) is provided with a mistake-proof structure (12) and an anti-drop buckle (13), the wire end connector (8) is provided with a mistake-proof limiting groove (81) and an anti-drop bayonet, the mistake-proof structure (12) is matched with the mistake-proof limiting groove (81), and the anti-drop buckle (13) is matched with the anti-drop bayonet.

23. A vehicle, characterized in that it comprises a lighting module according to any one of claims 14 to 22.

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