CN220770906U - Projection lamp and vehicle - Google Patents

Abstract

The utility model discloses a projection lamp and a vehicle, the projection lamp comprises a shell, a printed circuit board and a heat conducting plate, wherein: the printed circuit board is arranged inside the shell; the heat conducting plate is arranged outside the shell; the shell is provided with a metal insert, and the metal insert is contacted with the heat conducting piece and the heat conducting plate of the printed circuit board so as to conduct heat of the printed circuit board to the heat conducting plate. When the projection lamp is used, heat generated by the printed circuit board is transmitted to the heat conducting plate positioned outside the shell through the heat conducting piece and the metal insert, so that the purpose of radiating the printed circuit board is achieved.

Description

Projection lamp and vehicle

Technical Field

The utility model relates to the technical field of car lamps, in particular to a projection lamp and a vehicle.

Background

The existing projection lamp generally has larger power, and needs a larger radiator for radiating heat of the projection lamp, so that the volume of the lamp body can be further enlarged, and the projection lamp is not suitable for some narrow installation environments (such as the inside of a pedal, a vehicle side skirt, a chassis, a rearview mirror and the like).

Therefore, how to expand the application scene of the projection lamp is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The utility model provides a projection lamp and a vehicle so as to expand the application scene of the projection lamp.

In order to achieve the above object, the present utility model provides the following technical solutions:

in a first aspect, the present utility model provides a projection lamp comprising a housing, a printed circuit board, and a thermally conductive plate, wherein: the printed circuit board is arranged inside the shell; the heat conducting plate is arranged outside the shell; the shell is provided with a metal insert, and the metal insert is contacted with the heat conducting piece and the heat conducting plate of the printed circuit board so as to conduct heat of the printed circuit board to the heat conducting plate.

Optionally, in the projection lamp, the bottom wall of the housing includes a mounting hole, and the metal insert is located in the mounting hole.

Optionally, in the projection lamp, the metal insert is injection molded in the mounting hole.

Optionally, in the projection lamp, the metal insert is connected to the heat conducting plate through a fastener, so as to conduct heat to the heat conducting plate through the fastener.

Optionally, in the projection lamp, a first heat conducting fin is further disposed between the housing and the printed circuit board, a first end face of the first heat conducting fin contacts with the heat conducting member, a second end face of the first heat conducting fin contacts with the metal insert, and the first end face and the second end face are arranged oppositely.

Optionally, in the projection lamp, a heat-conducting sealant is disposed between the first end surface of the first heat-conducting fin and the heat-conducting member, and/or between the second end surface of the first heat-conducting fin and the metal insert.

Optionally, in the projection lamp, the heat conducting plate includes a mounting section and a guiding section, and the mounting section is connected with the housing and contacts with the metal insert; the guide section is connected with the mounting section.

Optionally, in the projection lamp, a second heat conducting fin is disposed at the guiding section.

In a second aspect, the present utility model provides a vehicle comprising a footrest, a body and a projection lamp disposed on the body, the projection lamp being as described above for any one of the projection lamps.

Optionally, in the vehicle, the heat conducting plate of the projection lamp is connected with a metal piece on a vehicle body or a pedal.

According to the technical scheme, when the projection lamp is used, heat generated by the printed circuit board is transmitted to the heat conducting plate positioned outside the shell through the heat conducting piece and the metal insert, so that the purpose of radiating the printed circuit board is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present utility model, and it is possible for those of ordinary skill in the art to obtain other drawings from the provided drawings without inventive effort, and to apply the present utility model to other similar situations from the provided drawings. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.

FIG. 1 is a schematic view of a projection lamp according to the present utility model;

FIG. 2 is a schematic view of another projection lamp according to the present utility model;

in the drawings, 100 is a projection lamp, 110 is a printed circuit board, 120 is a heat conductive plate, 130 is a case, 111 is a heat conductive member, 112 is a first heat conductive sheet, 121 is a mounting section, 122 is a guide section, 123 is a second heat conductive sheet, and 131 is a metal insert.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Therefore, it is necessary to design a projection lamp that expands the application scene of the projection lamp, which is a technical problem in the art. In order to solve the technical problems, the following description is provided with reference to the accompanying drawings:

referring to fig. 1 and 2, fig. 1 shows a schematic view of a projection lamp; fig. 2 shows a schematic view of another projection lamp.

The projection lamp 100 of the embodiment of the present utility model includes a housing 130, a printed circuit board 110, and a heat conductive plate 120, wherein: the printed circuit board 110 is disposed inside the housing 130; the heat conductive plate 120 is disposed outside the case 130; the case 130 is provided with a metal insert 131, and the metal insert 131 is in contact with both the heat conductive member 111 and the heat conductive plate 120 of the printed circuit board 110 to conduct heat of the printed circuit board 110 to the heat conductive plate 120.

When the projection lamp 100 of the present utility model is used, the heat generated by the printed circuit board 110 is transferred to the heat conducting plate 120 located outside the housing 130 through the heat conducting member 111 and the metal insert 131, so as to achieve the purpose of heat dissipation of the printed circuit board 110, therefore, the projection lamp 100 of the present utility model does not need to provide a radiator inside the housing 130, the volume of the projection lamp 100 can be designed to be relatively small, and the projection lamp 100 can be suitable for some narrow application scenarios, thereby expanding the application scenarios of the projection lamp 100.

It should be noted that, the housing 130 of the present utility model is embedded with the metal insert 131 to conduct heat on the printed circuit board 110 from the interior of the housing 130, and the housing 130 of the present utility model is usually an injection molded part, so that on one hand, the weight of the projection lamp 100 can be reduced, and on the other hand, insulation between the housing 130 and the printed circuit board 110 can be ensured.

The metal insert 131 is detachably mounted on the housing 130 or is non-detachably mounted on the housing 130. The housing 130 is provided with a mounting hole in which the metal insert 131 is mounted. In some embodiments of the present utility model, the metal insert 131 is screwed into the mounting hole; or in still other embodiments of the present utility model, the metal insert 131 is injection molded into the mounting hole.

The mounting holes may be disposed on a side wall or a bottom wall of the housing 130, preferably, the mounting holes are disposed on the bottom wall of the housing 130, and the projection lamp 100 may be mounted on a vehicle in a manner that the mounting holes are disposed on the bottom wall.

Here, the housing 130 of the present utility model includes a bottom wall and a side wall surrounding the bottom wall, and the bottom wall and the side wall enclose a structure having an opening for mounting the light emitting module, the lamp housing, and the like.

The metal insert 131 is in direct contact or indirect contact with the heat conductive plate 120 to conduct heat. In some embodiments of the present utility model, the metal insert 131 is connected to the heat conductive plate 120 through a fastener to transfer heat to the heat conductive plate 120 through the fastener. The fastener may be a screw, bolt, or the like, that is capable of conducting heat. The heat of the metal insert 131 is transferred to the heat conductive plate 120 through the fastener to transfer the heat inside the case 130 to the outside of the case 130.

The metal insert 131 is in direct contact with the heat conductive member 111 or in indirect contact therewith to conduct heat of the printed circuit board 110 to the heat conductive member 111. The printed circuit board 110 may include a high power electronic component and a heat conductive member 111, wherein the heat conductive member 111 serves to draw heat of the high power electronic component out of the printed circuit board 110. The heat conductive member 111 and the printed circuit board 110 may be attached, screwed, or the like, and any structural member capable of achieving the above functions may be understood as the heat conductive member 111.

A first heat conductive sheet 112 is further disposed between the housing 130 and the printed circuit board 110, a first end surface of the first heat conductive sheet 112 is in contact with the heat conductive member 111, a second end surface of the first heat conductive sheet 112 is in contact with the metal insert 131, and the first end surface and the second end surface are disposed opposite to each other. Further, in order to improve the heat transfer efficiency between the heat conductive member 111 and the first heat conductive sheet 112, a heat conductive sealant is disposed between the first end surface of the first heat conductive sheet 112 and the heat conductive member 111, and/or between the second end surface of the first heat conductive sheet 112 and the metal insert 131.

The heat conducting plate 120 in the embodiment of the present utility model may be directly used for heat dissipation of the projection lamp 100, and in still other embodiments of the present utility model, heat may be further conducted to other components through the heat conducting plate 120 for heat dissipation. The heat conductive plate 120 of the embodiment of the present utility model may include a mounting section 121 and a guide section 122, the mounting section 121 being connected with the housing 130 and contacting the metal insert 131; the guide section 122 is connected to the mounting section 121. The mounting section 121 is connected with the metal insert 131 through a fastener, heat of the metal insert 131 is conducted to the mounting section 121 through the fastener, then is transferred to the guide section 122 through the mounting section 121, and finally, the guide section 122 is transferred to other structures.

Further, a second heat conductive sheet 123 is provided at the guide section 122. And is conducted to other structures through the second heat conductive sheet 123.

The utility model also discloses a vehicle, which comprises a pedal plate, a vehicle body and a projection lamp 100 arranged on the vehicle body, wherein the projection lamp 100 is the projection lamp 100 of any one of the above. Since the above projection lamp 100 has the above advantages, the vehicle including the projection lamp 100 has corresponding effects, and will not be described herein.

The projection lamp 100 may be installed in a narrow installation environment (e.g., inside a foot rest, a side skirt of a vehicle, a chassis, a rear view mirror, etc., and connected to a metal member of the above structure.

Wherein, in the description of the embodiments of the present utility model, unless otherwise indicated, "/" means or, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone.

The terms "first" and "second" are used above 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, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

For convenience of description, only a portion related to the present utility model is shown in the drawings. Embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

The above description is only illustrative of the preferred embodiments of the present utility model and the technical principles applied, and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. The scope of the utility model is not limited to the specific combination of the above technical features, but also covers other technical features formed by any combination of the above technical features or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.

Claims (10)

1. A projection lamp comprising a printed circuit board, a thermally conductive plate, and a housing, wherein: the printed circuit board is arranged inside the shell; the heat conducting plate is arranged outside the shell; the shell is provided with a metal insert, and the metal insert is contacted with the heat conducting piece of the printed circuit board and the heat conducting plate so as to conduct heat of the printed circuit board to the heat conducting plate.

2. The projection lamp of claim 1, wherein the bottom wall of the housing includes a mounting hole, the metal insert being located within the mounting hole.

3. The projection lamp of claim 2, wherein the metal insert is injection molded into the mounting hole.

4. The projection lamp of claim 2, wherein the metal insert is coupled to the thermally conductive plate by a fastener to conduct heat to the thermally conductive plate by the fastener.

5. The projection lamp of claim 2, wherein a first thermally conductive sheet is further provided between the housing and the printed circuit board, a first end face of the first thermally conductive sheet is in contact with the thermally conductive member, a second end face of the first thermally conductive sheet is in contact with the metal insert, and the first end face is disposed opposite to the second end face.

6. The projection lamp of claim 5, wherein a thermally conductive sealant is disposed between the first end surface of the first thermally conductive sheet and the thermally conductive member and/or between the second end surface of the first thermally conductive sheet and the metal insert.

7. The projection lamp of any one of claims 1 to 6, wherein the thermally conductive plate comprises a mounting section and a guide section, the mounting section being connected to the housing and in contact with the metal insert; the guide section is connected with the mounting section.

8. The projection lamp of claim 7, wherein the guide section is provided with a second thermally conductive sheet.

9. A vehicle comprising a footboard, a body and a projection lamp disposed on the body, the projection lamp being as set forth in any one of claims 1 to 8.

10. The vehicle of claim 9, wherein the heat conductive plate of the projection lamp is connected to a metal piece on the body or the footrest.