CN115773476A - Lighting device for vehicle lamp - Google Patents

Abstract

The invention provides a lighting device for motor vehicle lamps, which comprises: at least one light source mounted on a first carrier; an electronic control unit mounted on a second carrier; a housing, wherein the first carrier The component is mounted on the housing via at least one first mounting device, and wherein the second carrier is mounted on the housing via at least one second mounting device, wherein the housing includes a device for inserting and mounting the first carrier on the A first opening on the housing and a second opening for inserting and mounting the second carrier on the housing, wherein the lighting device comprises a heat sink element comprising a heat dissipating section and a cover section , wherein the cover section extends away from the dissipating part, wherein the heat sink element is constructed in one piece and can be attached to the housing such that the heat dissipating section is thermally connected to the aforementioned at least one light source and such that the cover section covers the second Open your mouth.

Description

Lighting device for vehicle lights

technical field

The invention relates to a lighting device for a motor vehicle comprising:

- at least one light source configured to emit light and mounted on the first carrier;

- at least one electronic control unit configured to control at least one light source and mounted on a second carrier, wherein the first carrier is separate from the second carrier;

- a housing for mounting at least one light source and an electronic control unit, wherein the first carrier together with the at least one light source is mounted on the housing via a first mounting device, and wherein the second carrier together with the electronic control unit Mounted on the housing via a second mounting device, wherein the housing includes:

- a first opening for inserting the first carrier together with the at least one light source into the housing in order to mount the first carrier together with the at least one light source on the housing; and

- A second opening for inserting the second carrier together with the electronic control unit into the housing for mounting the second carrier to the housing, wherein the first opening is separated from the second opening.

The invention also relates to a motor vehicle comprising at least one lighting device according to the invention. A lighting device is to be understood as any lighting device fitted to a motor vehicle, advantageously headlights, fog lights, tail lights, auxiliary lights.

Background technique

A control unit (ECU), especially a small control unit, is usually sealed inside the lamp device housing during the assembly process. After completing the assembly process and enclosing the lamp unit with a cover glass, these ECUs cannot be replaced without damaging the lamp unit. This occurs in particular in vehicle lighting devices which are designed to be relatively small.

Contents of the invention

It is an object of the present invention to provide an improved lighting device.

To achieve this object, the lighting device comprises a heat sink element comprising a heat dissipation section configured to dissipate heat from at least one light source, and the heat sink element comprising a cover section configured to cover the second opening , wherein the cover section extends away from the heat dissipating section,

Wherein the heat sink element is constructed in one piece and can be attached to the housing such that the heat dissipating section is thermally connected to the at least one light source to dissipate heat from the at least one light source and such that the cover section covers the second light source. Open your mouth.

Advantageously, the housing is overmoulded around the radiator element, wherein preferably the radiator element is made of metal and the housing is made of plastic.

Advantageously, the heat dissipating section is overmoulded to construct the cover section of the heat sink element.

Advantageously, the second mounting device comprises at least one first mounting element and at least one second mounting element, wherein the second carrier together with the electronic The control unit enters the mounting position in the housing such that when the second carrier reaches the mounting position, the at least one first mounting element engages with the at least one second mounting element.

Advantageously, at least one first mounting element is arranged on the housing, and wherein at least one second mounting element is arranged on the second carrier.

Advantageously, the second mounting means comprise at least two, preferably exactly two, first and second mounting elements.

Advantageously, the second mounting means comprises at least one abutment portion, wherein when the second carrier reaches the mounting position, the second carrier abuts on the at least one abutment portion so as to limit the insertion direction of the second carrier. exercise.

Advantageously, at least one first mounting element is configured as a protrusion and at least one second mounting element is configured as a recess, wherein the recess receives the protrusion when the second carrier has reached the mounting position.

Advantageously, the protrusion has a height and a taper with respect to its height.

Advantageously, the second mounting device is designed to be detachable.

Advantageously, the second mounting device comprises at least one guide element which is designed to guide the second carrier into the mounting position, wherein preferably the at least one guide element is designed as a rib. The guide element is designed to prestress and/or hold the second carrier in a defined position.

Advantageously, the heat sink can be attached to the housing such that the heat dissipating section covers the first opening of the housing.

Advantageously, the heat sink element is also designed as the first mounting device, wherein the first carrier with the at least one light source is mounted on the housing via the heat sink element.

Advantageously, the lighting device comprises sealing means for sealing the first opening and the second opening when the heat sink element is attached to the housing, said sealing means comprising a sealing element and an opposing sealing element, wherein the housing comprises the sealing element, The sealing element integrally extends around the first opening and the second opening and protrudes from the housing, wherein the heat sink element includes an opposing sealing element corresponding to the sealing element of the housing, and wherein, when the heat sink element is attached to the When on the housing, the sealing element and the opposing sealing element mechanically engage and form a form-fit connection.

Advantageously, the sealing device comprises a fitting element which is arranged between the sealing element and the opposing sealing element when they are mechanically engaged, wherein the fitting element is deformable and is configured as a pair of sealing elements Sealing with a form-fit connection between opposing sealing elements. Thus, the fitting element can improve the moisture and dust resistance of the sealing element and the mechanical engagement of the opposing sealing element.

The fitting element can be constructed as rubber or can be made of rubber material.

The object is also achieved by a motor vehicle lamp comprising at least one lighting device according to the invention.

Description of drawings

In the following, in order to further illustrate the invention, an illustrative and non-limiting embodiment is discussed which is shown in the accompanying drawings, which show:

1 is an exploded perspective view of an exemplary lighting device including at least one light source, an electronic control unit, and a housing for the light source and the electronic control unit, wherein the housing includes a first opening and a second opening , the first opening and the second opening can be covered by a heat sink element comprising an additional cover section;

2 is a rear view of a first opening and a second opening of the housing, wherein the electronic unit is inserted into the second opening;

Fig. 3 is a front view of the radiator element, wherein the light source is arranged on the first carrier on the radiator element;

4 is a perspective rear view of the housing of the lighting device, wherein the first opening and the second opening are covered by a heat sink element and a cover section of the heat sink element;

Fig. 5 is a three-dimensional cross-sectional view along line Y-Y in Fig. 2, wherein the electronic control unit is mounted in the second opening via the second mounting device; and

Figure 6 is a rear view of the housing and the second opening, where the second mounting means can be seen.

Detailed ways

FIG. 1 shows an example of a lighting device 10 for a motor vehicle lamp, the lighting device 10 comprising a light source 110 configured to emit light and mounted on a first carrier 100, configured to control the light source 110 and mounted on a second carrier The electronic control unit 210 on the component 200 , wherein the first carrier 100 is separated from the second carrier 200 .

Further, the lighting device 10 includes a casing 300 for accommodating the light source 110 and the electronic control unit 210, wherein the first carrier 100 together with at least one light source 110 is mounted on the casing 300 via a first mounting device, and wherein the second The two supporting parts 200 and the electronic control unit 210 are mounted on the casing 300 through the second mounting device 400 .

As can be seen in FIG. 2 , the housing 300 includes a first opening 310 and a second opening 320 , the first opening 310 is used for inserting the first carrier 100 together with the light source 110 into the housing 300 , so that the first carrier The component 100 together with at least one light source 110 is mounted to the housing 300, the second opening 320 is used to insert the second carrier 200 together with the electronic control unit 210 into the housing 300, so that the second carrier 200 is installed in the housing 300, Wherein, the first opening 310 is separated from the second opening 320 .

The electronic control unit 210 and its second carrier 200 are mounted to the housing 300 via a second mounting device 400 , wherein the second mounting device 400 includes two first mounting elements 410 and two second mounting elements 220 . The first mounting element 410 is arranged on the housing 300 , and wherein at least one second mounting element 220 is arranged on the second carrier 200 . Furthermore, the second mounting device 400 is designed to be detachable.

By inserting the second carrier 200 into the housing 300 along the insertion direction X through the second opening 320, as shown in FIG. , so that when the second carrier 200 reaches the installation position P1, the first installation element 410 is engaged with the second installation element 220 .

In addition, the second installation device 400 includes an abutment portion 430, wherein when the second carrier 200 reaches the installation position P1, the second carrier 200 abuts on the abutment portion 430, so as to limit the insertion of the second carrier 200. Movement in direction X.

In the example shown in the figures, the first mounting element 410 is configured as a protrusion and the second mounting element 220 as a corresponding recess, wherein the recess receives the corresponding protrusion when the second carrier 200 reaches the mounting position P1. department.

The protrusion as part of the first mounting element 410 also has a height and a taper with respect to its height in order to bring about its mechanical engagement of the protrusion and the recess 220 in a simple manner when the second carrier 200 reaches the mounting position P1 .

Thus, the taper is arranged such that the direct course of the taper from its narrower part to its highest part is directed in the insertion direction X.

The second mounting device 400 also comprises a guide element 420 configured to guide the second carrier 200 into the mounting position P1, wherein the guide elements 420 are formed as ribs parallel to each other, wherein the ribs extends parallel to the insertion direction X—this can be seen, for example, in FIG. 6 .

The lighting device 10 also includes a heat sink element 500 including a heat dissipation section 510 configured to dissipate heat from the at least one light source 110 , and the heat sink element 500 includes a heat sink element 500 configured to cover the second opening 320 Cover section 520 , wherein cover section 520 extends away from heat dissipation section 510 , as can be seen, for example, in FIGS. 3 and 4 .

The heat sink element 500 is constructed in one piece and can be attached on the housing 300 such that the heat dissipating section 510 is thermally connected to the light source 110 in order to dissipate heat from the light source 110 and such that the cover section 520 covers the second opening 320 . The state in which the first opening 310 and the second opening 320 are covered by the heat sink element 500 can be observed, for example, in FIG. 4 .

Furthermore, the heat sink element 500 can be attached on the housing 300 such that the heat dissipation section 510 covers the first opening 310 of the housing 300 .

The heat sink element 500 is also designed as a first mounting device, wherein the first carrier 100 together with the at least one light source 110 is mounted on the housing 300 via the heat sink element 500 , as can be seen in FIG. 3 .

Furthermore, the lighting device 10 comprises sealing means for sealing the first opening 310 and the second opening 320 when the heat sink element 500 is attached to the housing 300, said sealing means comprising a sealing element 600 and an opposing sealing element 700, wherein, The housing includes a sealing element 600 that extends in one piece around the first opening 310 and the second opening 320 and protrudes from the housing 300 , wherein the radiator element 500 includes a sealing element 600 corresponding to the housing 300 The opposing sealing element 700, and wherein, when the heat sink element 500 is attached to the housing 300, the sealing element 600 and the opposing sealing element 700 mechanically engage and form a form fit connection.

Furthermore, the sealing device comprises a fitting element which is arranged between the sealing element 600 and the opposing sealing element 700 when the sealing element 600 and the opposing sealing element 700 are in mechanical engagement, wherein the fitting element is deformable and configured as a pair The form-fit connection between the sealing element 600 and the opposing sealing element 700 seals.

In the example shown, the fitting element is constructed as a rubber that seals the form-fit connection between the sealing element 600 and the opposing sealing element 700 .

List of reference signs

lighting fixtures 10

First carrier 100

light source 110

Second carrier 200

Electronic control unit 210

Second mounting element 220

Shell 300

first opening 310

Second opening 320

Second mounting device 400

first mounting element 410

Guide element 420

butt part 430

Radiator element 500

heat dissipation section 510

Cover section 520

Sealing element 600

Relative sealing element 700

Insertion direction X

Installation position P1

Claims (14)

1. A lighting device (10) for a motor vehicle lamp, comprising:

-at least one light source (110), the at least one light source (110) being configured to emit light and being mounted on the first carrier (100);

-at least one electronic control unit (210), the electronic control unit (210) being configured to control the at least one light source (110) and being mounted on a second carrier (200), wherein the first carrier (100) is separate from the second carrier (200);

-a housing (300), the housing (300) for accommodating the at least one light source (110) and the electronic control unit (210), wherein the first carrier (100) together with the at least one light source (110) is mounted on the housing (300) via a first mounting means, and wherein the second carrier (200) together with the electronic control unit (210) is mounted on the housing (300) via a second mounting means (400), wherein the housing (300) comprises:

a first opening (310), the first opening (310) being for inserting the first carrier (100) together with the at least one light source (110) into the housing (300),

for mounting the first carrier (100) together with the at least one light source (110) on the housing (300); and

-a second opening (320), the second opening (320) being used for inserting the second carrier (200) together with the electronic control unit (210) into the housing (300),

for mounting the second carrier (200) to the housing (300), wherein the first opening (310) is separate from the second opening (320),

it is characterized in that the preparation method is characterized in that,

the lighting device (10) comprising a heat sink element (500), the heat sink element (500) comprising a heat dissipation section (510) configured to dissipate heat from the at least one light source (110), and the heat sink element (500) comprising a cover section (520) configured to cover the second opening (320), wherein the cover section (520) extends away from the heat dissipation section (510),

wherein the heat sink element (500) is constructed as one piece and is attachable on the housing (300) such that the heat dissipating section (510) is thermally connected to the at least one light source (110) for dissipating heat from the at least one light source (110) and such that the cover section (520) covers the second opening (320).

2. The lighting device according to claim 1, wherein the second mounting device (400) comprises at least one first mounting element (410) and at least one second mounting element (220), wherein the second carrier (200) together with the electronic control unit (210) can be brought into a mounting position (P1) in the housing (300) by inserting the second carrier (200) in an insertion direction (X) into the housing (300) via the second opening (320) such that the at least one first mounting element (410) engages with the at least one second mounting element (220) when the second carrier (200) reaches the mounting position (P1).

3. The lighting device according to claim 2, wherein at least one first mounting element (410) is arranged on the housing (300), and wherein at least one second mounting element (220) is arranged on the second carrier (200).

4. The lighting device according to claim 2 or 3, wherein the second mounting device (400) comprises at least two, preferably exactly two first mounting elements (410) and second mounting elements (220).

5. The lighting device according to any one of claims 2-4, wherein the second mounting device (400) comprises an abutment portion (430), wherein the second carrier (430) abuts on the abutment portion (430) when the second carrier (430) reaches the mounting position (P1) in order to limit the movement of the second carrier (200) in the insertion direction (X).

6. The lighting device according to any one of claims 2-5, wherein the at least one first mounting element (410) is constructed as a protrusion and the at least one second mounting element (220) is constructed as a recess, wherein the recess receives the protrusion when the second carrier (200) reaches the mounting position (P1).

7. The lighting device of claim 6, wherein the protrusion has a height and a taper with respect to its height.

8. The lighting device according to any one of claims 1 to 7, wherein the second mounting device (400) is configured to be detachable.

9. The lighting device according to any one of claims 1 to 8, wherein the second mounting device (220) comprises at least one guiding element (420), the at least one guiding element (420) being configured to guide the second carrier (200) into the mounting position (P1), wherein preferably the at least one guiding element (420) is constructed as a rib.

10. The lighting device according to any one of claims 1 to 9, wherein the heat sink element (500) is attachable on the housing (300) such that the heat dissipating section (510) covers the first opening (310) of the housing (300).

11. The lighting device according to any one of claims 1 to 10, wherein the heat sink element (500) is further constructed as the first mounting device, wherein the first carrier (100) together with the at least one light source (110) is mounted on the housing (300) via the heat sink element (500).

12. The lighting device according to any one of claims 1 to 11, wherein the lighting device (10) comprises a sealing device for sealing the first opening (310) and the second opening (320) when the heat sink element (500) is attached to the housing (300), the sealing device comprising a sealing element (600) and a counter-sealing element (700), wherein the housing (300) comprises the sealing element (600), the sealing element (600) extending in one piece around the first opening (310) and the second opening (320) and protruding from the housing (300), wherein the heat sink element (500) comprises the counter-sealing element (700) corresponding to the sealing element (600) of the housing (300), and wherein the sealing element (600) and the counter-sealing element (700) are mechanically engaged and form-fittingly connected when the heat sink element (500) is attached to the housing (300).

13. The lighting device according to claim 12, wherein the sealing device comprises a fitting element arranged between the sealing element (600) and the counter sealing element (700) when the sealing element (600) and the counter sealing element (700) are mechanically engaged, wherein the fitting element is deformable and configured to seal the form-fitting connection between the sealing element (600) and the counter sealing element (700).

14. A motor vehicle lamp comprising at least one lighting device (10) according to any one of claims 1 to 13.

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