CN216597500U

CN216597500U - High-heat-dissipation type gas discharge lamp for vehicle

Info

Publication number: CN216597500U
Application number: CN202220046699.5U
Authority: CN
Inventors: 谢建军; 童诚; 周获
Original assignee: NINGBO YINZHOU MASAHIRO ELECTRON & ARTS Inc
Current assignee: NINGBO YINZHOU MASAHIRO ELECTRON & ARTS Inc
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-05-24
Anticipated expiration: 2032-01-10

Abstract

The utility model discloses a high heat dissipation type gas discharge lamp for vehicles, which comprises an aluminum upper shell, an aluminum lower shell, a circuit board assembly and a lamp tube, wherein the aluminum lower shell is fixedly connected with the bottom opening of the aluminum upper shell in a sealing way, the circuit board assembly comprises a control panel and a plug, an installation fixing interface is arranged on the aluminum upper shell, a lamp tube metal frame is arranged on the installation fixing interface, a plurality of metal supports are annularly arranged on the lamp tube metal frame, the lower part of each metal support is connected with the edge of the installation fixing interface, a plastic shell is arranged in the aluminum upper shell, a stretching platform matched with the installation fixing interface is arranged above the plastic shell, a groove is arranged on the stretching platform, heat dissipation holes are arranged at the bottom of the groove, a heat insulation plastic bottom plate is arranged at the bottom of the control panel, a limit column is arranged on the heat insulation plastic bottom plate, a limit through hole matched with the limit column is arranged on the control panel, a lower half limit groove is arranged at the side edge of the aluminum lower shell, an upper side limiting groove is arranged on the side edge of the aluminum upper shell. This structure improves the radiating effect.

Description

High-heat-dissipation type gas discharge lamp for vehicle

Technical Field

The utility model relates to a technical field of car lamp, in particular to automobile-used gas discharge lamp of high heat dissipation type.

Background

The light source of the automobile headlamp is arranged in the automobile headlamp. The xenon lamp is used for road surface illumination in the driving process, guarantees driving safety and prevents traffic accidents, and is called as a vehicle gas discharge lamp and is commonly called as a xenon lamp. The common gas discharge lamp for the vehicle on the market consists of a lamp tube, a circuit board assembly, a plastic shell and an aluminum shell, and different installation fixing interfaces can be divided into D1S, D1R, D2S, D2R, D3S, D3R and the like according to different lamp tube types. The most common model is D1S/R, D3S/R, and the existing product has the following defects: 1. the lower end of a lamp tube metal fixing support of an original product is embedded in an installation fixing interface on a plastic shell, so that when the product works, a large part of heat generated by the lamp tube is transmitted to the installation fixing interface through the lamp tube metal fixing support, and the installation fixing interface is made of a plastic material, so that the heat is easy to generate hot melting deformation after long-time working, the lamp tube metal fixing support is loosened, the lamp tube is further eccentric and defocused, the light shape of a lamp is abnormal, and the like; if the looseness is too large, the lamp tube can be in hard contact with the plastic lamp during operation, so that the lamp tube is deformed or burnt out by heat, and 2, the inside of the shell can also be affected by heat to damage internal components, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high heat dissipation type automobile-used gas discharge lamp to solve the fluorescent tube heat that proposes among the above-mentioned background art and influence the casing easily and lead to inside components and parts to receive the heat easily and influence and damage, the easy problem that warp of fluorescent tube frame.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high heat dissipation type automobile-used gas discharge lamp, includes aluminium epitheca, aluminium inferior valve, circuit board subassembly and fluorescent tube, the sealed fixed connection of bottom opening of aluminium inferior valve and aluminium epitheca, circuit board subassembly includes control panel and plug, the control panel is connected with the fluorescent tube electricity, the control panel is fixed in the enclosure space that aluminium epitheca, aluminium inferior valve formed, its characterized in that: an installation fixing interface is arranged on the aluminum upper shell, a lamp tube metal frame is integrally stamped on the installation fixing interface, more than one metal bracket is annularly arranged on the metal bracket of the lamp tube, the lower part of the metal bracket is connected with the edge of the installation fixing interface, the lower part of the lamp tube is inserted into the metal bracket, a plastic shell is arranged in the aluminum upper shell, an extension table matched with the installation fixing interface is arranged above the plastic shell, a groove is arranged on the extension table, a heat dissipation hole communicated with the closed space is arranged at the bottom of the groove, the bottom of the control panel is provided with a heat insulation plastic bottom plate which is provided with a limit column, a limit through hole matched with the limit column is arranged on the control panel, a lower half limit groove is arranged at the side edge of the aluminum lower shell, an upper half limit groove is arranged on the side edge of the aluminum upper shell, and the upper half limit groove and the lower half limit groove are matched to fix the plug.

In order to avoid the shaking of the plug, a plug limiting groove matched with the plug is arranged on the side edge of the plastic shell.

In order to facilitate installation, a circle of annular inserting strips are arranged on the heat insulation plastic bottom plate, and the lower part of the plastic shell is matched with the annular inserting strips.

In order to improve the heat dissipation effect, more than one triangular heat dissipation scale is arranged on the lamp tube metal frame, and the triangular heat dissipation scales and the lamp tube metal frame are integrally formed.

Preferably, the anti-UV effect is improved by coating the outer layer of the lamp tube with an anti-UV coating and filling the interior of the lamp tube with inert gas.

Preferably, in order to facilitate the limiting, a limiting table is arranged in the aluminum lower shell, and the heat insulation plastic bottom plate is placed on the limiting table.

The utility model discloses a high heat dissipation type is gas discharge lamp for vehicle's that obtains technical effect as follows:

1. the structure enables the aluminum upper shell, the lamp tube metal frame and the metal support to form an integrated piece, and the integrated piece is matched with the aluminum lower shell, so that a more complete and reliable heat conduction path is established, the integral heat dissipation area of a product is increased, the heat dissipation performance is better, and the reliability of the product is higher;

2. the plastic shell and the heat insulation plastic bottom plate are isolated from the outside in the shell, so that the heat influence on components and parts during the heat dissipation of the lamp tube is avoided, and the safety is improved.

Drawings

Fig. 1 is an exploded schematic view of a high heat dissipation type gas discharge lamp for a vehicle in embodiment 1;

FIG. 2 is an enlarged view at A of FIG. 1;

fig. 3 is an enlarged view of fig. 1 at B.

In the figure: the LED lamp comprises an aluminum upper shell 1, an upper half limit groove 1-1, an aluminum lower shell 2, a lower half limit groove 2-1, a limit table 2-2, a circuit board assembly 3, a control panel 3-1, a plug 3-2, a lamp tube 4, an installation fixing interface 5, a lamp tube metal frame 6, a metal support 7, a plastic shell 8, an extension table 9, a groove 10, a heat dissipation hole 11, a heat insulation plastic bottom plate 12, a limit column 13, a limit through hole 14, a plug limit groove 15, a triangular heat dissipation scale 16 and an annular inserting strip 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-3, the present embodiment provides a high heat dissipation type gas discharge lamp for vehicles, including an aluminum upper shell 1, an aluminum lower shell 2, a circuit board assembly 3 and a lamp tube 4, where the aluminum lower shell 2 is fixedly connected with an opening at the bottom of the aluminum upper shell 1 in a sealing manner, the circuit board assembly 3 includes a control board 3-1 and a plug 3-2, the control board 3-1 is electrically connected with the lamp tube 4, the control board 3-1 is fixed in a closed space formed by the aluminum upper shell 1 and the aluminum lower shell 2, an installation fixing interface 5 is arranged on the aluminum upper shell 1, a lamp tube metal frame 6 is integrally stamped on the installation fixing interface 5, more than one metal support 7 is annularly arranged on the lamp tube metal frame 6, the lower portion of the metal support 7 is connected with an edge of the installation fixing interface 5, the lower portion of the lamp tube 4 is inserted into the metal support 7, a plastic shell 8 is arranged in the aluminum upper shell 1, the plastic shell 8 is provided with an extending platform 9 matched with the installation fixing interface 5 above, a groove 10 is arranged on the extending platform 9, a heat dissipation hole 11 communicated with a closed space is arranged at the bottom of the groove 10, a heat insulation plastic bottom plate 12 is arranged at the bottom of the control plate 3-1, a limit column 13 is arranged on the heat insulation plastic bottom plate 12, a limit through hole 14 matched with the limit column 13 is arranged on the control plate 3-1, a lower half limit groove 2-1 is arranged at the side edge of the lower aluminum shell 2, an upper half limit groove 1-1 is arranged at the side edge of the upper aluminum shell 1, and the upper half limit groove 1-1 is matched with the lower half limit groove 2-1 for fixing the plug 3-2.

In order to avoid the shaking of the plug, a plug limiting groove 15 matched with the plug 3-2 is arranged on the side edge of the plastic shell 8.

For convenient installation, a circle of annular inserting strip 17 is arranged on the heat-insulating plastic bottom plate 12, and the lower part of the plastic shell 8 is matched with the annular inserting strip 17.

In order to improve the heat dissipation effect, more than one triangular heat dissipation scale 16 is arranged on the lamp tube metal frame 6, and the triangular heat dissipation scales 16 and the lamp tube metal frame 6 are integrally formed.

Preferably, the UV-resistant effect is enhanced by coating the outer layer of the lamp tube 4 with a UV-resistant coating and filling the interior of the lamp tube 4 with an inert gas.

In this embodiment, the aluminum lower shell 2 is made of metal aluminum 6061, has a natural color oxidized surface, is formed by punching, and is fixedly connected with the aluminum upper shell 1 through each buckle position on the inner side, so as to be used for main body heat dissipation during the packaging of the plastic component and the working of the product;

the heat insulation plastic bottom plate 12 is made of plastic ABS material, is black, is formed by injection molding, is bonded with the plastic shell 8 through silica gel to form a combined inner cavity for fixing and packaging the circuit board assembly, shields the internal components and the working process, simultaneously prevents the ignition high pressure leakage from causing the lighting failure of the product or generating secondary danger when the product works, firstly inserts the annular inserting strip 17 above the heat insulation plastic bottom plate 12 into the plastic shell 8 when the product is installed, and is bonded through the silica gel at the joint to realize the separation of the circuit work and the aluminum shell;

the control panel 3-1 is a combination of a circuit board, a high-voltage package, a discharge tube, a TVS tube, a resistance-capacitance element and a ballast interface, namely a plug 3-2, and is used for fixing and electrically connecting device points through a plug-in spot welding process. The circuit board is made of FR-4 material, is 1.6mm thick, is a double-sided board, is subjected to a tin spraying process, is green in a solder mask layer, is white in a character silk-screen printing layer, is a component substrate and is used for fixing and connecting other devices. The high voltage package, the discharge tube, the TVS tube and the resistance-capacitance element are all direct-insertion separation elements to form a high voltage trigger circuit for starting the lamp tube, the instantaneous high voltage can reach 23KV, so that the high voltage trigger circuit can break down gas to establish arc discharge,

the plastic shell 8 is made of ABS material, is formed by injection molding and is black, is bonded with the heat insulation plastic bottom plate 12 through silica gel to form a combined inner cavity, is used for fixing and packaging the circuit board assembly, shields the internal assembly and the working process, and simultaneously prevents the ignition high voltage leakage from causing the lighting failure of the product or generating secondary danger when the product works.

The aluminum upper shell 1, the lamp tube metal frame 6 and the metal support 7 form an integrated piece, are made of metal aluminum 6061, are oxidized in nature color on the surface and are formed by stamping, and are fixedly connected with an aluminum lower shell 2 through clamping positions on the outer side, and the metal support 7 in the structure is a four-metal-leaf suspension support ring structure and is used for fixing the lamp tube metal frame 6 and preventing the lamp tube metal frame from being loosened and eccentric.

The lamp tube 4 is a quartz glass tube and adopts an inner sleeve and outer sleeve structure, the surface of the outer tube is provided with an anti-UV coating, and a closed bulb of the inner tube is filled with an inert gas, namely xenon; when the lamp is installed, the positive electrode and the negative electrode of the lamp pass through the lamp metal frame 6, the metal bracket 7 and the electrode through holes on the plastic shell 8 to the inner cavity of the plastic shell 8 to be electrically connected with the circuit board assembly.

When the device works, the device is installed at a corresponding position of an automobile, then an automobile engine is started, and a far/near light control switch is turned on, so that the device starts to work after power is supplied. The electronic ballast outputs alternating current driving voltage, after the ignition triggering coil is boosted, 23KV voltage is instantly generated and transmitted to two ends of a bulb electrode, inert gas in an inner tube closed bulb body is subjected to arc discharge due to high-voltage breakdown and emits light and heat, then heat of a lamp tube is quickly transmitted to an upper aluminum shell and a lower aluminum shell through the outer wall of the lamp tube, a lamp tube metal frame 6 and a metal support 7 and then is dissipated through air movement, meanwhile, part of the heat is dissipated through a triangular heat dissipation scale 16, the heat dissipation effect is finally improved by expanding the heat dissipation range, in the heat dissipation process, because an internal circuit board assembly 3 is isolated by matching of a plastic shell 8 and a heat insulation plastic bottom plate 12, the damage of components cannot be influenced due to the fact that the internal circuit board assembly 3 cannot enter the interior, in addition, the heat generated by the circuit board assembly 3 can be discharged through a heat dissipation hole 11, and the protection of the components is further improved.

Therefore, the structure has the following technical effects:

1. the structure integrates the aluminum upper shell 1, the lamp tube metal frame 6 and the metal support 7, and is matched with the aluminum lower shell 2, so that a more complete and reliable heat conduction path is established, the integral heat dissipation area of a product is increased, the heat dissipation performance is better, and the reliability of the product is higher;

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high heat dissipation type automobile-used gas discharge lamp, includes aluminium epitheca (1), aluminium inferior valve (2), circuit board subassembly (3) and fluorescent tube (4), the sealed fixed connection of bottom opening of aluminium inferior valve (2) and aluminium epitheca (1), circuit board subassembly (3) are including control panel (3-1) and plug (3-2), control panel (3-1) are connected with fluorescent tube (4) electricity, control panel (3-1) are fixed in the enclosure space that aluminium epitheca (1), aluminium inferior valve (2) formed, its characterized in that: an installation fixing interface (5) is arranged on an aluminum upper shell (1), a lamp tube metal frame (6) is integrally stamped on the installation fixing interface (5), more than one metal support (7) is annularly arranged on the lamp tube metal frame (6), the lower part of the metal support (7) is connected with the edge of the installation fixing interface (5), the lower part of a lamp tube (4) is inserted into the metal support (7), a plastic shell (8) is arranged in the aluminum upper shell (1), a stretching platform (9) matched with the installation fixing interface (5) is arranged above the plastic shell (8), a groove (10) is arranged on the stretching platform (9), heat dissipation holes (11) communicated with a closed space are arranged at the bottom of the groove (10), a heat insulation plastic bottom plate (12) is arranged at the bottom of a control panel (3-1), and a limit column (13) is arranged on the heat insulation plastic bottom plate (12), the control panel (3-1) is provided with a limiting through hole (14) matched with the limiting column (13), the side edge of the lower aluminum shell (2) is provided with a lower half limiting groove (2-1), the side edge of the upper aluminum shell (1) is provided with an upper half limiting groove (1-1), and the upper half limiting groove (1-1) is matched with the lower half limiting groove (2-1) to fix the plug (3-2).

2. A high heat dissipation type gas discharge lamp for vehicles as recited in claim 1, wherein: a plug limiting groove (15) matched with the plug (3-2) is arranged on the side edge of the plastic shell (8).

3. A high heat dissipation type gas discharge lamp for vehicles as recited in claim 1, wherein: a circle of annular inserting strip (17) is arranged on the heat insulation plastic bottom plate (12), and the lower part of the plastic shell (8) is matched with the annular inserting strip (17).

4. A high heat dissipation type gas discharge lamp for vehicles as recited in claim 1, wherein: more than one triangular radiating scale (16) is arranged on the lamp tube metal frame (6), and the triangular radiating scale (16) and the lamp tube metal frame (6) are integrally formed.

5. A high heat dissipation type gas discharge lamp for vehicles as recited in claim 1, wherein: the outer layer of the lamp tube (4) is coated with a UV resistant coating, and the interior of the lamp tube (4) is filled with inert gas.

6. A high heat dissipation type gas discharge lamp for vehicles as recited in claim 1, wherein: a limiting table (2-2) is arranged in the lower aluminum shell (2), and the heat insulation plastic bottom plate (12) is placed on the limiting table (2-2).