CN107940399B

CN107940399B - Automobile LED lamp with circuit assembly

Info

Publication number: CN107940399B
Application number: CN201711153198.7A
Authority: CN
Inventors: 陈兴权
Original assignee: Wu Panting
Current assignee: Foshan Haisenmei Photoelectric Technology Co.,Ltd.
Priority date: 2017-11-20
Filing date: 2017-11-20
Publication date: 2020-09-25
Anticipated expiration: 2037-11-20
Also published as: CN107940399A

Abstract

The invention provides an automobile LED lamp with a circuit assembly, which comprises a shell, wherein one end of the shell is provided with an LED light-emitting component, the LED light-emitting component is electrically connected with an LED lamp driver through the circuit assembly, the substrate is formed by covering an upper substrate and a lower substrate, the covering surfaces of the upper substrate and the lower substrate are both provided with fixing grooves, and liquid guide pipelines are arranged in the fixing grooves; a cavity is arranged in the shell, a sealing element is arranged at the other end of the shell, and the sealing element seals the shell to form a sealed space in the shell; the end part of the substrate is fixedly connected with one end of the shell, so that the liquid guide pipeline is communicated with the sealed space to form a circulating loop; an impeller is arranged in the sealed space; and a cooling fan is arranged on the outer side of the sealing element, the cooling fan is provided with a first driving assembly, and correspondingly, the impeller is provided with a second driving assembly. The invention provides an automobile LED lamp product, which optimizes the structure of the LED lamp product and enables the LED lamp product to have more excellent performance.

Description

Automobile LED lamp with circuit assembly

Technical Field

The invention relates to the field of illumination, in particular to an automobile LED lamp with a circuit assembly.

Background

In the prior art, the automobile LED lamp assembly structure comprises an LED lamp (comprising a lamp bead and a substrate), a driver and a radiator, wherein the LED lamp bead is fixedly installed on the substrate, and the driver is connected with the LED lamp bead to control the switch of the LED lamp bead. The heat dissipation mode of traditional LED lamp is heat-conduction mode, and on the heat of LED lamp pearl passed through the base plate and transmitted the radiator promptly, the rethread radiator realized the heat dissipation to external transmission heat. In order to improve the heat dissipation efficiency of the LED lamp, a fin-type heat sink is generally used in the conventional heat sink.

The invention patent with the patent number of 2017101558451 discloses a heat dissipation structure and an LED lamp structure using the same, and proposes to design a water circulation loop in an LED lamp and utilize the water circulation to dissipate heat of the LED lamp; meanwhile, a double-drive structure for driving the impeller and the fan to rotate by using the driving coil is provided. However, the patent only teaches that the disclosed water circulation heat dissipation structure is applied to the LED lamp, and does not teach a specific product structure of the LED lamp that can be practically applied; in addition, the patent utilizes a 'double-drive' structure realized by the driving coil, so that the production cost is high (mainly the cost of the driver coil and a control circuit thereof is high); secondly, the driver (the surface of which is carved with the driving coil) is used as a driving source and also used as a sealing element (preventing water inside the LED lamp from leaking), and the setting mode has very high requirements on the driver, has overlarge production difficulty and production cost, and is not suitable for production and application. In addition, referring to the attached drawings of the specification of the patent, the circulation loop is realized in the form of an inner sleeve and an outer sleeve, and the lamp holder of the LED lamp is too large in volume, the distance between two lamp beads is too large, and the light rays of the lamp beads are scattered. Finally, this patent does not give the circuit structure of LED lamp, and the line mode of walking of current LED lamp is complicated simultaneously, and LED lamp casing internal line is chaotic, not only assembles the processing difficulty, reduces the quality of LED lamp simultaneously.

Accordingly, the prior art is yet to be improved and developed.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide a specific and simplified automotive LED lamp structure with a circuit assembly, which not only uses a circulating heat dissipation structure in an LED lamp, but also solves the problem of complicated and mixed routing inside a housing of the LED lamp.

The scheme of the invention is as follows:

an automobile LED lamp with a circuit assembly comprises a shell, wherein one end of the shell is provided with an LED light-emitting component, and the LED light-emitting component is electrically connected with an LED lamp driver and driven by the LED lamp driver to emit light;

the LED light-emitting component comprises a substrate and lamp beads arranged on the substrate, the substrate is formed by covering an upper substrate and a lower substrate, fixing grooves are formed in covering surfaces of the upper substrate and the lower substrate, liquid guide pipelines are arranged in the fixing grooves, and the liquid guide pipelines are fixed inside the substrate by covering the upper substrate and the lower substrate;

a cavity is formed in the shell, a sealing element is arranged at the other end of the shell, and the shell is sealed by the sealing element to form a sealed space in the shell; the end part of the substrate is fixedly connected with one end of the shell, so that the liquid guide pipeline is communicated with the sealed space to form a circulating loop;

an impeller is arranged in the sealed space; a heat dissipation fan is arranged on the outer side of the sealing element, the heat dissipation fan is provided with a first driving assembly, and correspondingly, the impeller is provided with a second driving assembly;

the heat radiation fan drives the first driving component to rotate, and the first driving component generates force effect on the second driving component when rotating to enable the second driving component to rotate, so that the impeller is driven to rotate to drive the medium in the sealed space to flow in the circulation loop, and heat generated by the LED light-emitting component is transferred and diffused;

at least one of the first driving component and the second driving component is a magnet component, and the other driving component is a magnet component or a metal component;

the lamp holder is arranged on the lower portion of the shell, two quick-release screws are symmetrically arranged on the top of the shell, and the quick-release screws penetrate through the shell from the top of the shell to reach the lower portion of the shell and are fixedly connected with the lamp holder;

the circuit assembly comprises a rear cover and a combined circuit;

the rear cover is fixedly arranged at the top of the shell, and the combined circuit is arranged on the lower surface of the rear cover; the combined circuit comprises a fan armature control circuit and a wire passing circuit of the cooling fan; one end of the wire passing circuit is electrically connected with the LED lamp driver, and the other end of the wire passing circuit is electrically connected with the LED light-emitting component through a connecting wire.

Preferably, any one of the first driving assembly and the second driving assembly is a magnet assembly, and the other driving assembly is a metal assembly; when the metal component and the magnet component move relatively, the metal component cuts magnetic lines of force of the magnet component, so that force is generated between the metal component and the magnet component, and the first driving component drives the second driving component to move.

Preferably, the first driving assembly and the second driving assembly are both magnet assemblies; when the first driving assembly and the second driving assembly are close to each other, suction force or repulsive force is generated, so that the first driving assembly drives the second driving assembly to move.

Preferably, one end of the housing, at which the LED light emitting assembly is mounted, is provided with a first port and a second port, the end of the substrate is provided with a first connection end and a second connection end, the first connection end is connected to the first port, and the second connection end is connected to the second port, so that the liquid guide pipeline is communicated with the sealed space to form a circulation loop.

Preferably, the cable fixing part is further included, and the cable fixing part is fixedly connected with the shell.

Preferably, the center of the inner surface of the sealing element is provided with a mounting hole, a positioning shaft is arranged in the mounting hole, the end part of the positioning shaft protrudes outwards, and the positioning shaft is connected with the impeller through a first bearing, so that the impeller rotates by taking the positioning shaft as the center.

Preferably, the impeller comprises a mounting seat, a central pipe and blades, and a first bearing mounting cavity for mounting the first bearing is arranged in the center of the top of the mounting seat; the central tube is fixedly installed in the center of the bottom of the installation seat, the blades are arranged on the bottom surface of the installation seat, and the blades are distributed around the central tube in an arrangement manner; the lateral wall of the central tube is provided with a water inlet hole, and the end part of the central tube is provided with a water outlet hole.

Preferably, the device also comprises a flow guide seat, wherein the flow guide seat is arranged at the bottom of the sealed space;

a second bearing installation cavity is formed in the center of the top of the guide seat, a second bearing is arranged in the second bearing installation cavity, and the end part of a central pipe of the impeller is inserted into the second bearing and connected with the guide seat, so that the impeller is rotatably arranged relative to the guide seat;

the flow guide seat further comprises a first flow guide channel, a second flow guide channel and a third flow guide channel; the first flow guide channel is arranged in the center of the flow guide seat, one end of the first flow guide channel is communicated with the water outlet hole of the central pipe, the other end of the first flow guide channel is communicated with one end of the second flow guide channel, the other end of the second flow guide channel is communicated with one end of the liquid guide pipeline, the other end of the liquid guide pipeline is communicated with one end of the third flow guide channel, and the other end of the third flow guide channel is communicated with the sealed space.

Preferably, the outer wall of the flow guide seat is provided with a plurality of flow guide cooling fins, and a flow guide cooling groove is formed between every two adjacent flow guide cooling fins.

Preferably, the diversion seat further comprises a diversion trench, the diversion trench is arranged between the third diversion channel and the liquid guide pipeline, and the diversion trench is communicated with the liquid guide pipeline, the third diversion channel and the plurality of diversion radiating grooves.

The invention has the beneficial effects that: the invention provides an automobile LED lamp product, which optimizes the structure of the automobile LED lamp product and enables the automobile LED lamp product to have more excellent performance.

Drawings

Fig. 1 is a schematic structural diagram of an automotive LED lamp according to an embodiment of the present invention.

Fig. 2 is a sectional view of an automotive LED lamp in an embodiment of the invention.

Fig. 3 is a schematic view of the structure of the upper substrate of the automotive LED lamp in the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a combination of a heat dissipation fan, an impeller and a flow guide seat of an automotive LED lamp in an embodiment of the invention.

Fig. 5 is a sectional view of a combination of a heat dissipation fan, an impeller and a fluid guide seat of an automotive LED lamp in an embodiment of the invention.

Fig. 6 is a schematic structural diagram of a matching arrangement of a first driving assembly and a second driving assembly of an automotive LED lamp according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of another arrangement of the first driving assembly and the second driving assembly of the automotive LED lamp according to the embodiment of the present invention.

Fig. 8 is a schematic structural diagram of an impeller of an automotive LED lamp in an embodiment of the present invention.

Fig. 9 is a schematic view of another angle structure of the impeller of the automotive LED lamp in the embodiment of the invention.

Fig. 10 is a schematic structural diagram of a guide socket of an automotive LED lamp in an embodiment of the invention.

Fig. 11 is a schematic structural diagram of another angle of the deflector base of the automotive LED lamp according to the embodiment of the present invention.

FIG. 12 is a schematic view of a liquid guide channel placed in a fixing groove of an upper substrate according to an embodiment of the present invention.

FIG. 13 is a schematic view of the configuration of a catheter in an embodiment of the invention.

Fig. 14 is a circuit assembly structure diagram of the LED lamp in the embodiment of the present invention.

Fig. 15 is a side view of a wiring assembly of an automotive LED lamp in an embodiment of the invention.

Fig. 16 is a combined circuit diagram of a wiring assembly of the automotive LED lamp in the embodiment of the invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 and 2, the invention discloses an automotive LED lamp, which includes a housing 100, wherein an LED light emitting assembly is disposed at one end of the housing 100, and the LED light emitting assembly is electrically connected to an LED lamp driver and driven by the LED lamp driver to emit light.

Specifically, the LED light emitting assembly includes a substrate 210 and a bead 220 disposed on the substrate 210. In practical applications, referring to fig. 3, the substrate 210 is composed of an upper substrate 211 and a lower substrate (the upper substrate and the lower substrate have the same structure, so that only the structural diagram of the upper substrate is provided), the covering surfaces of the upper substrate 211 and the lower substrate are both provided with fixing grooves 212, and when the upper substrate and the lower substrate are covered to form the substrate, the two fixing grooves 212 are just spliced to form a channel for installing and fixing the liquid guide pipe 400. In practical applications, referring to fig. 13, the liquid guiding pipe 400 may be formed by bending a pipe (e.g., a copper pipe), and during assembly, the liquid guiding pipe 400 is placed in the fixing groove 212 of the upper substrate 211 (or the lower substrate) (see fig. 12), then the upper substrate and the lower substrate are closed, the upper substrate and the lower substrate are joined together to form a substrate, the upper substrate and the lower substrate are welded and fixed together by laser welding, etc., so that the liquid guiding pipe 400 is fixed inside the substrate 210, and the liquid guiding pipe 400 is disposed around the LED lamp bead 220. By adopting the arrangement mode, on one hand, the substrate 210 can be in full contact with the liquid guide pipeline 400 (the whole surface of the liquid guide pipeline 400 is in contact with the substrate 210), so that the heat of the substrate 210 is more rapidly conducted to the liquid guide pipeline 400, and the heat is transferred and diffused by using a medium circularly flowing in the liquid guide pipeline 400, so that the heat dissipation efficiency of the whole automobile LED lamp is improved; on the other hand, the arrangement mode has good sealing performance, the liquid guide pipeline 400 is formed by bending one pipeline, the medium flows in the liquid guide pipeline 400 without leakage, the structure has low requirement on welding between the upper substrate and the lower substrate, and complete sealing welding is not required, so the processing cost is reduced. In addition, because the liquid guide pipeline 400 adopts a setting mode surrounding the LED lamp beads 220, the distance between the LED lamp beads 220 on the two side surfaces of the substrate 210 is small, so that the light of the whole automobile LED lamp product is more concentrated, and the light condensation degree of the whole product is good.

The inside of the casing 100 is provided with a cavity, and the other end of the casing is provided with a sealing member 300, wherein the sealing member 300 seals the casing 100 to form a sealed space 110 inside the casing 100; the end of the substrate 210 is fixedly connected to one end of the housing 100, so that the fluid conduit 400 communicates with the sealed space 110 to form a circulation loop (see fig. 2). More specifically, the impeller 510 is disposed in the sealed space 110; a heat dissipation fan 610 is disposed outside the sealing member 300, the heat dissipation fan 610 is provided with a first driving assembly 710, correspondingly, the impeller 510 is provided with a second driving assembly 720, please refer to fig. 4 and 5 for the arrangement of the heat dissipation fan 610 and the impeller 510; when the heat dissipation device works, the heat dissipation fan 610 drives the first driving component 710 to rotate, and the first driving component 710 generates force on the second driving component 720 when rotating, so that the second driving component 720 rotates, the impeller 510 is driven to rotate to drive the medium in the sealed space 110 to flow in the circulation loop, and heat generated by the LED light emitting component is transferred and diffused. Referring to fig. 2, the arrows indicate the direction of media flow.

In practical applications, at least one of the first driving component 710 and the second driving component 720 is a magnet component, and the other driving component is a magnet component or a metal component.

In some embodiments, either one of the first driving assembly 710 and the second driving assembly 720 is a magnet assembly, and the other one is a metal assembly; when the metal component and the magnet component move relatively, the metal component cuts magnetic lines of force of the magnet component, so that force is generated between the metal component and the magnet component, and the first driving component 710 drives the second driving component 720 to move. In one embodiment, the first drive assembly 710 may be provided using a magnet mounted off center (center) of the drive member 600, while the second drive assembly 720 may be provided using a metal disk or ring. In another embodiment, referring to fig. 6, the first driving assembly 710 employs three magnets uniformly distributed, and the second driving assembly 720 employs a metal disc or a metal ring, when in use, the first driving assembly 710 and the second driving assembly 720 are disposed opposite to each other and not in contact, and when in use, the first driving assembly 710 rotates, and magnetic lines of force thereof are cut by the second driving assembly 720, so that a force is generated between the first driving assembly 710 and the second driving assembly 720, and the first driving assembly 710 drives the second driving assembly 720 to move. It can be understood that the first driving assembly 710 is formed by a plurality of magnets (e.g., 2, 4, 5, etc.), the plurality of magnets are uniformly distributed around the same circle center (to ensure that the acting force between the first driving assembly 710 and the second driving assembly 720 is uniform and stable, and to ensure that the second driving assembly 720 can rotate stably), and the second driving assembly 720 is a metal disc or a metal ring; of course, the first drive assembly 710 and the second drive assembly 720 may be interchanged, i.e., the first drive assembly 710 may be a metal disk or a metal ring, and the second drive assembly 720 may be formed by a plurality of magnets.

In practical application, the metal component can be made of a single metal layer or a plurality of different metal layers. Adopt the different metal preparation of multilayer, be favorable to improving the effect of the effect between first drive assembly 710 and the second drive assembly 710, improve the drive effect between them.

In some embodiments, the first drive assembly 710 and the second drive assembly 720 are both magnet assemblies; when the first driving assembly 710 and the second driving assembly 720 are close to each other, an attractive force or a repulsive force is generated, so that the first driving assembly 710 drives the second driving assembly 720 to move. In one embodiment, referring to fig. 7, each of the first driving assembly 710 and the second driving assembly 720 is composed of three magnets uniformly distributed around the same center. When the magnetic driving device is used, the first driving assembly 710 and the second driving assembly 720 are arranged opposite to each other and are not in contact with each other, and when the first driving assembly 710 rotates and the three magnets of the first driving assembly 710 are close to the three magnets of the second driving assembly 720 corresponding to the first driving assembly, attraction force or repulsion force is generated between the magnets, so that the first driving assembly 710 drives the second driving member 720 to rotate. It can be understood that the first driving assembly 710 and the second driving assembly 720 may be formed by a plurality of magnets (e.g., 2, 4, 5, etc.), and the plurality of magnets are uniformly distributed around the same circle center (to ensure that the acting force between the first driving assembly 710 and the second driving assembly 720 is uniform and stable, and to ensure that the second driving assembly 720 can rotate stably).

In practical applications, the shape of the magnet constituting the first driving assembly 710 or the second driving assembly 720 is not limited, and may be a cylinder, a rectangular parallelepiped, or the like, as long as the purpose of driving the first driving assembly 710 to rotate and the second driving assembly 720 to rotate is achieved.

It should be noted that there are various arrangement manners of the first driving assembly 710 and the second driving assembly 720, and the above descriptions only list some matching manners, and those skilled in the art can obtain other feasible matching manners by combining the listed matching manners according to the functions of the first driving assembly 710 and the second driving assembly 720 through conventional transformation, and the obtained matching manners should be within the scope of the present application.

The LED lamp for the automobile disclosed by the invention further comprises a lamp holder 800, the lamp holder 800 is arranged at the lower part of the shell 100, in order to facilitate the quick disassembly and assembly of the lamp holder 800 and the shell 100, two quick-release screws 140 (see fig. 1 and 2) are symmetrically arranged at the top of the shell 100, and the quick-release screws 140 penetrate through the shell 100 from the top of the shell 100 to reach the lower part of the shell 100 and are fixedly connected with the lamp holder 800.

In practical application, referring to fig. 2 and 3, one end of the housing 100, which is used for mounting the LED light emitting assembly, is provided with a first port 121 and a second port 122, the end of the substrate 210 is provided with a first connection end 410 and a second connection end 420, the first connection end 410 is connected to the first port 121, and the second connection end 420 is connected to the second port 122, so that the liquid guiding pipe 400 is communicated with the sealed space 110 to form a circulation loop (see fig. 2). In practical application, when the first connection end 410 and the second connection end 420 at the end of the substrate 210 are inserted into the first port 121 and the second port 122 at the end of the housing 100, two ends of the liquid guiding pipe 400 are just correspondingly communicated with two openings of the sealed space 110, so that the medium inside the sealed space 110 can flow into the liquid guiding pipe 400, and then flow out of the liquid guiding pipe 400 into the sealed space 110.

In practical application, referring to fig. 1, the automotive LED lamp of the present application further includes a cable fixing member 130, where the cable fixing member 130 is fixedly connected to the housing 100, and the cable fixing member 130 is used to fix and arrange wires that are connected from the outside of the automotive LED lamp to the inside of the automotive LED lamp housing 100. In practical application, the cable fixing member 130 may be a plastic sleeve or a plastic shell, a wire passing through hole is formed in the cable fixing member 130, and an electric wire passing through the wire passing through hole from the outside of the automotive LED lamp is connected to the inside of the automotive LED lamp housing 100. In practical applications, the cable fixing element 130 may be fixedly connected to the housing 100 by screws, or may be fixedly connected by means of snaps or the like.

Referring to fig. 2, the impeller 510 and the guide 520 are disposed in the sealed space 110 of the casing 100, and the casing 100 is sealed by the seal 300; one side of the impeller 510, which faces the heat dissipation fan 610, is provided with a second driving assembly 720 (actually, a plurality of magnets corresponding to the first driving assembly 710), when the heat dissipation fan 610 rotates, the first driving assembly 710 is driven to rotate, and the rotating first driving assembly 710 generates a force on the second driving assembly 720, so that the second driving assembly 720 rotates along with the first driving assembly 710, thereby driving the impeller 510 to rotate; the impeller 510 rotates to drive the medium (e.g. chilled water) inside the sealed space 110 to flow in the direction indicated by the arrow in fig. 2, wherein the guide seat 520 is used for guiding the flowing medium.

As can be seen from fig. 2 and 5, the center of the upper surface of the sealing member 300 is raised upward, and the periphery of the center is depressed downward to form the recess 310, and correspondingly, the center of the heat dissipation fan 610 is provided with a recess hole 611, the center of the upper surface of the sealing member 300 is depressed into the recess hole 611, and the first driving component 710 of the heat dissipation fan 610 is slightly depressed into the recess 310 (the heat dissipation fan 610 is not in contact with the sealing member 300). The arrangement mode can make the first driving assembly 710 on the heat dissipation fan 610 close to the second driving assembly 720 on the impeller 510 as much as possible, so as to improve the acting force between the first driving assembly 710 and the second driving assembly 720, and improve the efficiency of the first driving assembly 710 driving the second driving assembly 720 to rotate. The center of the lower surface of the sealing member 300 is provided with a mounting hole 320, a positioning shaft 330 is arranged in the mounting hole 320, the positioning shaft 330 protrudes downwards, and the impeller 510 is connected with the positioning shaft 330 through a first bearing 511, so that the impeller 510 rotates around the positioning shaft 330 (the impeller 510 is not in contact with the sealing member 300).

In practical applications, a sealing ring 340 is disposed between the sealing member 300 and the casing 100 for preventing the medium (e.g., liquid) inside the casing 100 from leaking.

Referring to fig. 8 and 9, the impeller 510 includes a mounting base 512, a central tube 513 and blades 514, a second driving component 720 (actually, a plurality of magnets) is disposed on the top of the mounting base 512 (i.e., the side facing the heat dissipation fan 610), a first bearing installation cavity 515 is disposed in the center of the top of the mounting base 512, a first bearing 511 is disposed in the first bearing installation cavity 515, and a positioning shaft 330 is inserted into the first bearing 511; and a wear-resistant member 516 (see fig. 2 and 5) is disposed between the lower end portion of the positioning shaft 330 and the bottom of the first bearing installation cavity 515, and the wear-resistant member 516 functions to prevent the impeller 510 from being damaged by friction generated by the lower end portion of the positioning shaft 330 against the impeller 510 during the long-term rotation of the impeller 510 relative to the positioning shaft 330. The center tube 513 is disposed at the bottom center of the mounting base 512, the vanes 514 are disposed on the bottom surface of the mounting base 512 and distributed around the center tube 513, and each of the vanes 514 is disposed at a slight angle so that when the impeller 510 rotates, the vanes 514 can suck the medium around the impeller 510 toward the center of the impeller 510. Specifically, the side wall of the central tube 513 is provided with a water inlet 5131, and the end part of the central tube 513 is provided with a water outlet 5132, when the impeller 510 rotates, the blades 514 rotate to suck the medium around the impeller 510 into the central tube 513, so that the medium flows from around the impeller 510 to the central tube 513, enters the central tube 513 from the water inlet 5131 on the side wall of the central tube 513, and is then ejected from the water outlet 5132 on the end part of the central tube 513.

The water outlet hole 5132 at the end of the central tube 513 is communicated with the fluid conduit 400 through the fluid guide seat 520, that is, the medium flow output from the water outlet hole 5132 flows into the fluid conduit 400 through the fluid guide seat 520 and then flows back to the periphery of the impeller 510 (i.e., in the sealed space 110) through the fluid conduit 400, and the flow path of the medium is shown by the arrow in fig. 2. The guide seat 520 mainly functions to guide water flow, referring to fig. 10 and 11, a second bearing installation cavity 521 is arranged at the top of the guide seat 520, a second bearing 522 is installed in the second bearing installation cavity 521, the central pipe 513 is connected with the guide seat 520 through the second bearing 522, the guide seat 520 is fixed at the bottom of the sealed space 110, and the impeller 510 rotates relative to the guide seat 520. As can be seen in fig. 8 and 9, the center tube 513 is slightly longer than the vanes 514 such that the center tube 513 protrudes downward and the lower protruding center tube 513 is inserted right into the second bearing 522. A first flow guide channel 523 is arranged in the center of the flow guide seat 520, the top of the first flow guide channel 523 is connected with the central pipe 513, the first flow guide channel 523 is communicated with the central pipe 513, a second flow guide channel 524 is arranged at the bottom of the first flow guide channel 523, and the tail end of the second flow guide channel 524 is communicated with the first connecting end 410; the second connection end 420 communicates with one end of the third guide passage 525 of the guide seat 520, and the other end of the third guide passage 525 communicates with the sealed space 110. The above structure realizes that the medium is sucked into the central pipe 513 from the periphery of the impeller 510 by the rotation of the blades 514 of the impeller 510, is ejected from the water outlet hole 5132 at the bottom of the central pipe 513 into the first flow guide channel 523 of the flow guide seat 520, is guided by the first flow guide channel 523 and the second flow guide channel 524 (see arrows in fig. 10 and 11), flows into the liquid guide pipeline 400 from the first connection end 410, flows out from the second connection end 420 to the third flow guide channel 525, is guided by the third flow guide channel 525, and finally flows back to the sealed space 110 (i.e., the periphery of the impeller 510).

In some embodiments, the flow guide slots 526 are formed in the outer wall of the flow guide seat 520, and the flow guide slots 526 function to increase the contact surface between the medium and the flow guide seat 520, so that heat in the medium can be dissipated more quickly. Specifically, the surface of the guide seat 520 is provided with a plurality of guide fins 527, and a guide fin groove 526 is formed between two adjacent guide fins 527.

In some embodiments, the two ends of the diversion heat dissipation groove 526 are respectively communicated with the second connection end 420 and the sealed space 110. Specifically, referring to fig. 11, a diversion trench 528 is disposed on the lower side surface of the diversion seat 520, the diversion trench 528 communicates with the second connection end 420 (i.e., communicates with the liquid guiding duct 400) and the diversion heat dissipation grooves 526, the medium absorbing heat of the LED light emitting assembly flows out from the second connection end 420 after passing through the liquid guiding duct 400, enters the diversion trench 528, flows into the diversion heat dissipation grooves 526 (including the third diversion channel 525) after being diverted by the diversion trench 528, and flows back into the sealed space 110 after passing through the diversion heat dissipation grooves 526 (including the third diversion channel 525). This kind of mode of setting up can improve medium backward flow efficiency, and simultaneously at the backward flow in-process, the medium that makes absorbed LED light emitting component's heat can be abundant with water conservancy diversion seat 520 contact, gives the water conservancy diversion seat 520 heat transfer, distributes away the heat fast through water conservancy diversion seat 520, is favorable to improving thermal radiating efficiency in the medium.

In some embodiments, the surface of the baffle seat 520 may be provided with a snap ring 5291 which is engaged with the housing 100, and the snap ring 5291 is used to prevent the baffle seat 520 placed in the sealed space 110 inside the housing 100 from falling out of the sealed space 110. Specifically, a groove matched with the snap ring 5291 is formed in the housing 100, and when the fluid guide seat 520 is placed in the sealed space 110, the snap ring 5291 is snapped into the groove to prevent the fluid guide seat 520 from being separated from the sealed space 110.

In some embodiments, the flow guide seat 520 may have a positioning groove 5292 formed on a side thereof, and the positioning groove 5292 is used to facilitate positioning of the flow guide seat 520 and ensure accurate installation of the flow guide seat 520 (i.e., ensure that the second flow guide channel 524 and the third flow guide channel 525 are aligned and communicated with the first connection end 410 and the second connection end 420, respectively). Specifically, a positioning block (not shown) is disposed inside the casing 100 and is matched with the positioning groove 5292, the positioning block may be a protruding strip protruding from the inner wall of the casing 100 and engaged with the positioning groove 5292, when the airflow guide seat 520 is placed inside the casing 100, the positioning groove 5292 on the airflow guide seat 520 must be aligned with the positioning block inside the casing 100 to be placed, otherwise the airflow guide seat 520 is difficult to be placed inside the casing 100.

This application is through the structure of above-mentioned impeller 510 and water conservancy diversion seat 520, ingenious realization rotate impeller 510 set up inside casing 100 to this kind of mode of setting, impeller 510 all has bearing structure from top to bottom, makes impeller 510 can the steady rotation, even bump also can not shift. In addition, the flow guide seat 520 is arranged in the shell 100, so that the flow guide of the medium in the shell 100 is realized, the medium flows more smoothly, and the heat dissipation efficiency is higher.

In some embodiments, referring to fig. 14, 15 and 16, the LED lamp disclosed in the present application further includes a circuit assembly 900, where the circuit assembly 900 includes a rear cover 910, a combination circuit 920 is disposed on the rear cover 910, and the combination circuit 920 includes a fan armature control circuit 921 and a wire passing circuit 922 of the heat dissipation fan 610, where the fan armature control circuit 921 may adopt the circuit diagram of fig. 16 or adopt a fan armature control circuit of a dc brushless fan in the related art. As can be seen from fig. 14 and 15, the stator of the heat dissipation fan 610 is directly connected to the rear cover 910 (actually, the fan armature control circuit of the heat dissipation fan 610 is directly mounted on the rear cover 910 and is integrated with the rear cover 910), the fan stator of the fan armature control circuit 921 protrudes outward, the rotor of the heat dissipation fan 610 is engaged with the stator, and the heat dissipation fan 610 is formed, and this arrangement realizes the integrated arrangement of the heat dissipation fan 610 and the rear cover 910 (actually, the fan armature control circuit 921 and the rear cover 910 are integrated). The combined circuit 920 further comprises a wire passing circuit 922, one end of the wire passing circuit 922 is electrically connected with the LED light emitting assembly through a downwardly extending connecting wire 930, and the other end of the wire passing circuit 922 is electrically connected with the automotive LED lamp driver through an external cable.

Specifically, the combination circuit 920 is provided with a plurality of input ends 923 and a plurality of output ends 924, the input ends 923 are used for connecting cables of the LED driver, the output ends 924 are used for electrically connecting the LED light emitting assemblies through the downwardly extending connecting wires 930, and the LED lamp driver is electrically connected with the LED light emitting assemblies through the cables, the wire passing circuits 922 and the downwardly extending connecting wires 930, so as to control the LED light emitting assemblies. In practical application, the LED driver is electrically connected to the LED light emitting assembly through the combining circuit 920 to provide voltage to the LED light emitting assembly; meanwhile, the LED driver is also electrically connected to the fan armature control circuit 921 to supply voltage to the heat dissipation fan 610.

In some embodiments, referring to fig. 16, the combination circuit 920 is provided with 5 input terminals 923, which respectively correspond to the voltage input line of the cooling fan 610, the low beam LED lamp voltage input line, the high beam LED lamp voltage input line, the temperature sensitive resistor voltage input line, and the ground terminal wire, wherein the temperature sensitive resistor is used for over-temperature protection of the LED lighting assembly; correspondingly, the combination circuit 920 is provided with 4 output terminals 924 for respectively connecting the low beam LED lamp, the high beam LED lamp, the temperature sensitive resistor, and the ground terminal of the LED lighting assembly through the connecting wires 930, that is, the 4 output terminals 924 are connected to the 4 connecting wires 930, and the 4 connecting wires 930 pass through the housing 100 from the rear cover downward (toward the LED lighting assembly) to reach the wiring position of the LED lighting assembly, and are electrically connected to the lighting assembly. More specifically, 5 input 923 set up in the same one side of composite circuit 920, convenient quick and LED driver's cable junction when the equipment, two double-phase combinations of 4 output 924 set up on composite circuit 920, and the setting of 4 output 924 is preferred to guarantee that its 4 connecting wire 930 that correspond divide into two sets (two are a set of) respectively from the both sides downwardly extending of casing reach on two sides of LED light-emitting component's base plate (namely two sets of outputs set up directly over two sides of LED light-emitting component's base plate respectively). The arrangement mode is convenient for arranging wires inside the LED lamp and the automobile on one hand, and on the other hand, through holes or grooves for passing the wires inside or on the surface of the shell 100 do not need to be oversized, so that the processing cost is reduced, and meanwhile, the strength of the shell 100 is ensured; meanwhile, as the two groups of output ends are respectively arranged right above the two side surfaces of the substrate of the LED light-emitting component, the connecting lead 930 does not need to be bent towards other directions, so that the connecting lead 930 extends more naturally, the resistance in welding is small, and the welding and the fixation are convenient.

In practical applications, the rear cover 910 and the combined circuit 920 are integrated into a plurality of embodiments, for example, a circuit may be directly drawn (or printed) on the rear cover 910, and components of the combined circuit 920 may be soldered on the circuit to form the combined circuit 920; for another example, the circuit board of the combined circuit 920 is first manufactured, and then the circuit board is fixed on the rear cover 910 by screws or fasteners. The integrated arrangement means that a plurality of parts which are independently processed and assembled and originally form the automobile LED lamp are integrated to form an independent component, the component can be processed and produced in a unified mode, and the component can be installed as an independent component when the automobile LED lamp is assembled.

According to the scheme, the rear cover 910, the combined circuit 920 and the cooling fan 610 are integrated, so that the size of the LED lamp is reduced, and most importantly, cables (wires) extending from a driver pass through the wire passing circuit 922 of the combined circuit 920, and the positions of lines are reasonably rearranged (one whole original wire is divided into two independent wires according to the assembly requirement), so that the wires can more orderly pass through the shell 100 to reach the LED light-emitting component; in addition, the cable passing circuit 922 is arranged, so that a cable (wire) of the LED driver horizontally entering the housing 100 is naturally and simply changed into the connecting wire 930 extending downwards (namely, the cable passing circuit 922 changes the direction of the cable of the LED driver), bending by a hand is not needed, and the difficulty of assembly is reduced.

During assembly, cables of the LED driver are connected (may be soldered) to the input terminals 923 of the combination circuit 920 in a one-to-one correspondence, and then each output terminal 924 of the combination circuit 920 is connected to one connection wire 930, each connection wire 930 passes through the housing 100 according to a wire circuit path designed on the housing 100 to reach two sides of the substrate of the LED light emitting assembly, the rear cover 910 is fixedly connected to the housing 100, and each connection wire 930 is connected to the LED terminals on the two sides of the substrate of the LED light emitting assembly as required.

The circuit assembly structure disclosed by the scheme reduces the volume of the LED lamp, can effectively reduce the assembly difficulty of an LED lamp product, improves the assembly efficiency, simultaneously enables the electric wires inside the shell of the LED lamp product to be more orderly, improves the quality of the product, and reduces the potential safety hazard caused by the disordered circuit.

The application provides a reasonable car LED lamp structure, its lamp holder is small, and the lamp pearl distance is little, and light is more concentrated to through the structure of rationally setting up impeller 510 and water conservancy diversion seat 520, found the very good medium circulation structure of stability in the inside limited space of casing 100, improved car LED lamp's heat dispersion and quality.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. The automobile LED lamp with the circuit assembly is characterized by comprising a shell, wherein one end of the shell is provided with an LED light-emitting component, and the LED light-emitting component is electrically connected with an LED lamp driver and driven by the LED lamp driver to emit light;

the circuit assembly comprises a rear cover and a combined circuit;

2. The automotive LED lamp with the line assembly according to claim 1, wherein any one of the first driving component and the second driving component is a magnet component, and the other one of the first driving component and the second driving component is a metal component; when the metal component and the magnet component move relatively, the metal component cuts magnetic lines of force of the magnet component, so that force is generated between the metal component and the magnet component, and the first driving component drives the second driving component to move.

3. The automotive LED lamp with the line assembly according to claim 1, wherein the first driving component and the second driving component are both magnet components; when the first driving assembly and the second driving assembly are close to each other, suction force or repulsive force is generated, so that the first driving assembly drives the second driving assembly to move.

4. The automotive LED lamp with the circuit assembly according to claim 1, wherein one end of the housing, which is provided with the LED light-emitting component, is provided with a first port and a second port, the end of the substrate is provided with a first connecting end and a second connecting end, the first connecting end is connected with the first port, and the second connecting end is connected with the second port, so that the liquid guide pipeline is communicated with the sealed space to form a circulation loop.

5. The automotive LED lamp with circuit assembly according to claim 1, further comprising a cable fixing member, wherein the cable fixing member is fixedly connected to the housing.

6. The automotive LED lamp with the line assembly according to claim 1, wherein a mounting hole is formed in the center of the inner surface of the sealing member, a positioning shaft is arranged in the mounting hole, the end of the positioning shaft protrudes outwards, and the positioning shaft is connected with the impeller through a first bearing so that the impeller rotates around the positioning shaft.

7. The automotive LED lamp with the line assembly according to claim 6, wherein the impeller comprises a mounting seat, a central tube and a blade, and a first bearing mounting cavity for mounting the first bearing is arranged at the center of the top of the mounting seat; the central tube is fixedly installed in the center of the bottom of the installation seat, the blades are arranged on the bottom surface of the installation seat, and the blades are distributed around the central tube in an arrangement manner; the lateral wall of the central tube is provided with a water inlet hole, and the end part of the central tube is provided with a water outlet hole.

8. The automotive LED lamp with the line assembly according to claim 7, further comprising a deflector base, wherein the deflector base is arranged at the bottom of the sealed space;

9. The automotive LED lamp with the circuit assembly according to claim 8, wherein a plurality of guide fins are arranged on the outer wall of the guide seat, and a guide heat dissipation groove is formed between two adjacent guide fins.

10. The automotive LED lamp with circuit assembly according to claim 9, wherein the diversion base further comprises a diversion trench, the diversion trench is disposed between the third diversion channel and the fluid guide channel, and the diversion trench communicates the fluid guide channel with the third diversion channel and the diversion heat sinks.