TWM462830U - Vehicle lamp - Google Patents

Description

Headlight

The present invention relates to a vehicle lamp, and more particularly to a lamp suitable for use in applications requiring better heat dissipation.

A wide variety of headlights are known, wherein a headlight mounted in front of a car usually includes a lamp housing made of, for example, a polypropylene (PP) material, a reflector seat mounted inside the lamp housing and facing forward, and a reflector. a halogen bulb mounted inside the reflector, and a lampshade mounted in front of the lamp housing and made of, for example, a polycarbonate (PC) material, and the structure of the fog lamp is substantially the same, but due to the halogen bulb used in the fog lamp The power is higher. Therefore, the lamp housing and the lamp cover need to be made of materials with better heat resistance such as glass, and some of the lamps are integrated in the same lamp housing and lampshade to form a fog lamp and a lighting headlight. Composite structure.

It is known that the lamp power used by the lamp is determined according to the size of the installed vehicle, that is, the lamp generally installed on a small car, and the power of the bulb is low, so the heat generated by the bulb is not caused by the lamp cover made of plastic and The lamp housing is damaged, but when the lamp is mounted on a large vehicle such as a truck, the required brightness must be increased, and a higher power bulb must be used. And the familiar lamp with a plastic lamp housing and a lampshade is used in large In the type of vehicle, because the lamp itself lacks heat dissipation design, the high temperature generated by the high-power halogen bulb will accumulate inside the lamp housing, especially the fog lamp of a large vehicle, and the wattage of the halogen bulb used is about 70~75W, when such a high-power halogen bulb is mounted on a lamp with a plastic lamp housing, the temperature around the bulb is sometimes as high as 175 ° C, which may cause the deformation temperature to be around 138 ° C. Plastic materials such as propylene and polycarbonate melt and deform. That is, a lamp that is known to lack a heat dissipation design is not suitable for use on a large vehicle, and its use range is limited.

The purpose of the present invention is to provide a lamp having a better heat dissipation effect and suitable for use in a large vehicle.

The lamp of the present invention comprises: a lamp housing, and a lamp cover mounted in front of the lamp housing and having a light transmissive wall, the lamp housing including a casing wall defining a receiving space, and the lamp further comprises: a first reflector seat mounted in the receiving space, and a first light-emitting member mounted in the first reflector seat, and the lamp housing further includes a light disposed on the shell wall adjacent to the shell wall and transparent a first heat dissipation hole of the light wall, and a convection hole disposed on the wall of the case and capable of forming a convection relationship with the first heat dissipation hole.

The beneficial effect of the present invention is that the heat source generated by the first illuminating member can be quickly discharged from the accommodating space by using the first vent hole and the convection hole provided on the lamp housing, thereby improving the heat dissipation effect of the lamp and facilitating the The lights are used in large vehicles.

1‧‧‧ lamp shell

10‧‧‧ angle

11‧‧‧ accommodation space

12‧‧‧ shell wall

121‧‧‧First accommodation

122‧‧‧Second housing

123‧‧‧Connecting the enclosure

13‧‧‧First vent

131‧‧‧Leading edge

132‧‧‧Dissipation Center

133‧‧‧ leading edge vertical

134‧‧‧ center vertical line

14‧‧‧ convection hole

140‧‧‧Center connection

141‧‧‧ Convection Center

15‧‧‧second vent

16‧‧‧Auxiliary vents

2‧‧‧shade

21‧‧‧Transisting wall

3‧‧‧First reflection seat

31‧‧‧First reflective wall

311‧‧‧First reflective surface

312‧‧‧ front end

313‧‧‧Optical face

314‧‧‧Non-optical face

32‧‧‧First reflection space

33‧‧‧Reflecting vents

4‧‧‧First light-emitting parts

40‧‧‧ optical axis

5‧‧‧Second reflector

51‧‧‧ around the main wall

52‧‧‧second reflective wall

521‧‧‧Second reflective surface

522‧‧‧Reflecting vents

53‧‧‧Second reflection space

54‧‧‧ erecting the wall

6‧‧‧second illuminating parts

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is a front perspective exploded view of a first preferred embodiment of the present invention; FIG. A cross-sectional view of a first preferred embodiment, mainly showing a corresponding relationship between a first reflecting seat and a lamp housing of the lamp; FIG. 3 is an incomplete rear perspective view of the first preferred embodiment. The lamp housing is shown separately; and Figure 4 is a cross-sectional view similar to Figure 2 showing a second preferred embodiment of the present invention.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 1, 2 and 3, the first preferred embodiment of the novel lamp is a composite structure which can be used as a lighting and fog lamp, which is suitable for installation on a large vehicle such as a truck or the like. It can also be mounted on a general small vehicle comprising: a lamp housing 1 including a receiving space 11, a lamp cover 2 mounted in front of the lamp housing 1 and having a light transmissive wall 21 for transmitting light. A first reflecting seat 3, a first illuminating member 4, a second reflecting seat 5, and a second illuminating member 6. The first and second reflecting seats 3 and 5 are mounted in the accommodating space 11 of the lamp housing 1. The lamp cover 2 is made of polycarbonate (PC).

The lamp housing 1 of the present embodiment further includes a casing wall 12 made of a polypropylene (PP) material and defining the accommodating space 11, the casing wall 12 having a first accommodating portion 121 convex toward the rear, and a The second receiving portion 122 disposed on the left and right sides of the first receiving portion 121 and a connecting surrounding portion 123 connecting the first and second receiving portions 121 and 122 and abutting the lamp cover 2 are provided. The lamp housing 1 further includes a first heat dissipation hole 13 , a pair of flow holes 14 , a second heat dissipation hole 15 , and a plurality of first and second heat dissipation holes 15 disposed on the connection portion 123 of the shell wall 12 . The heat dissipation auxiliary holes 16 on the two housing portions 121 and 122. The first and second heat dissipation holes 13 and 15 and the convection hole 14 are adjacent to the light transmission wall 21 of the lamp cover 2 .

The first reflecting seat 3 of the embodiment is a bowl-like structure and includes a first reflecting wall 31 and a first reflecting space defined by one of the first reflecting walls 31. 32. The first reflective space 32 is a light transmissive wall 21 facing the light cover 2, and the first reflective wall 31 has a front end surface 312 adjacent to the light transmissive wall 21 of the lamp cover 2. The first reflective surface 311 has a An optical face 313 adjacent to the rear, and a non-optical face 314 located forward. The first reflector 3 of the embodiment further includes a reflective heat dissipation hole 33 disposed on the first reverse sidewall 31. The reflective heat dissipation hole 33 corresponds to the optical surface portion 313 and is adjacent to the non-optical surface portion 314.

The first illuminating member 4 of the embodiment is mounted in the first reflecting space 32 and cooperates with the first reflecting seat 3 to form a similar automobile fog lamp. In this embodiment, the first illuminating member 4 Is a halogen lamp The bubble has a horizontal optical axis 40, and the first heat dissipation hole 13 of the lamp housing 1 is adjacent to the upper side, and has a leading edge 131 close to the transparent wall 21, a heat dissipation center 132, and a leading edge 131. And perpendicular to the leading edge perpendicular 133 of the optical axis 40, and a central vertical line 134 passing through the heat dissipation center 132 and perpendicular to the optical axis 40, the convection hole 14 is adjacent to the lower side and has a pair of flow centers 141, the convection center 141 A central connection 140 is formed with the heat dissipation center 132, and the center connection 140 has an included angle 10 with the central vertical line 134.

According to the creator test results, the first heat dissipation hole 13 of the present embodiment has the effect of lowering the internal temperature of the accommodation space 11 as long as it is positioned above the casing wall 12 and adjacent to the light transmission wall 21. However, in order to improve the heat dissipation effect, the convection hole 14 is further disposed in the embodiment near the lower side of the casing wall 11 for the purpose of forming convection. And after actual testing, it is found that when the angle 10 between the center line 140 and the center perpendicular 134 is equal to or less than 12 degrees, the convection effect is better.

The combination of the second reflecting seat 5 and the second illuminating member 6 of the embodiment can be used for general illumination. The second reflecting seat 5 includes a surrounding main wall 51 and a surrounding main wall 51 toward the lamp housing 1. a second reflective wall 52 protruding from the second receiving portion 122, a second reflective space 53 defined by a second reflective surface 521 of the second reflective wall 52, and a first receiving corresponding to the lamp housing 1 The portion 121 is spaced apart from the front end surface 312 of the first reflector 3 and is spaced apart from the front wall 312. The second reflector wall 52 further has a reflective heat dissipation hole 522.

The second illuminating member 6 is also a halogen bulb, and its power is less than The first illuminating member 4 is mounted in the second reflecting space 53 of the second reflecting seat 5.

When the lamp of the embodiment is in use, the function of the second illuminating member 6 is illumination, and the first illuminating member 4 is similar to the nature of the fog lamp, and requires a relatively large power, due to the first and second illuminating members 4, The heat dissipation method of 6 is the same, and only the first light-emitting member 4 will be described below. That is, when the first illuminating member 4 of the lamp of the present embodiment is illuminated, the generated hot air gradually flows from the first reflecting space 32 toward the accommodating space 11 of the lamp housing 1. Since the hot air naturally spreads upward and is discharged from the accommodating space 11 by the first louvers 13 provided in the vicinity of the casing wall 12, when the hot air is discharged out of the accommodating space 11 by diffusion, the outside and the temperature are relatively The lower cold air flows into the accommodating space 11 from the convection hole 14 of the lamp housing 1, so that the hot air inside the accommodating space 11 is discharged to the accommodating space 11 at a relatively high speed due to convection. In order to achieve the purpose of improving the heat dissipation effect.

On the other hand, in the embodiment, the first and second receiving portions 121 and 122 of the lamp housing 1 are provided with auxiliary heat dissipation holes 16, and the first reflection base 3 is also disposed substantially at the first light-emitting member 4 The upper heat dissipation holes 33 are reflected, so that the auxiliary heat dissipation holes 16 and the reflection heat dissipation holes 33 can cooperate to assist heat dissipation. In this embodiment, the heat dissipation structure is provided on the lamp housing 1, and the convection can be used to assist the hot air discharge. Therefore, the lamp of the embodiment can be used in a large vehicle in addition to improving the heat dissipation effect.

Referring to FIG. 4, a second preferred embodiment of the novel lamp is in the form of a fog lamp. The lamp also includes a lamp housing 1, a lamp cover 2 having a light transmissive wall 21, and a first reflection seat 3. And one mounted on the first reflector 3 The first illuminating member 4 inside. The difference between this embodiment and the first embodiment is that the convection hole 14 is substantially directly below the leading edge perpendicular 133 of the first heat dissipation hole 13, that is, the convection hole 14 is located at the front end surface 312 of the first reflection seat 3. And between the light-transmissive walls 21 of the lamp cover 2.

Specifically, in order to improve the lack of heat dissipation effect of the lamp, the creator of the present case first created a hole for dissipating heat on the lamp housing 1, but the actual test results show that since the hot air will move upward, Therefore, it is preferable to provide the first and second heat dissipation holes 13, 15 (see FIG. 3) at positions adjacent to the lamp housing 1.

In order to effectively discharge the hot air inside the accommodating space 11, the creator of the present invention attempts to introduce a convection mechanism, and during the test, it is found that the convection hole 14 is located at the front end surface of the light transmitting wall 21 and the first reflecting seat 3. Between 312, its convection effect is the best, that is, the heat dissipation effect is optimal (as in the second preferred embodiment of Fig. 4). Referring to Figure 2, when the center line 140 of the convection hole 14 is offset from the center line 134, the effect of convection is gradually reduced, especially when the angle 10 between the center line 140 and the center line 134 is greater than 12 degrees. The effect is not obvious. Therefore, in order to achieve a better heat dissipation effect, in addition to the first and second heat dissipation holes 13, 15 being disposed adjacent to the position of the light transmission wall 21 of the lamp cover 2, the convection hole 14 is also required to be the first The heat dissipation holes 13 generate a convection relationship.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new patent.

1‧‧‧ lamp shell

10‧‧‧ angle

11‧‧‧ accommodation space

12‧‧‧ shell wall

121‧‧‧First accommodation

123‧‧‧Connecting the enclosure

13‧‧‧First vent

131‧‧‧Leading edge

132‧‧‧Dissipation Center

133‧‧‧ leading edge vertical

134‧‧‧ center vertical line

14‧‧‧ convection hole

140‧‧‧Center connection

141‧‧‧ Convection Center

2‧‧‧shade

21‧‧‧Transisting wall

3‧‧‧First reflection seat

31‧‧‧First reflective wall

311‧‧‧First reflective surface

312‧‧‧ front end

313‧‧‧Optical face

314‧‧‧Non-optical face

32‧‧‧First reflection space

33‧‧‧Reflecting vents

4‧‧‧First light-emitting parts

40‧‧‧ optical axis

Claims (7)

A lamp includes: a lamp housing including a casing wall defining a receiving space; a lamp cover mounted in front of the lamp housing and having a light transmissive wall; and a first reflecting seat mounted in the receiving space And comprising a first reflecting wall; and a first illuminating member mounted in the first reflecting seat; wherein the lamp housing further comprises a lamp shell disposed on the shell wall adjacent to the shell wall and a first heat dissipation hole of the light transmission wall, and a convection hole provided on the wall of the case and capable of forming a convection relationship with the first heat dissipation hole. The vehicular lamp of claim 1, wherein the first louver has a leading edge and a leading edge perpendicular to the optical axis of the first illuminating member passing through the leading edge, The leading edge perpendicular is between the light transmissive wall and the first reflective wall of the first reflector. The vehicular lamp of claim 2, wherein the first louver further has a heat dissipation center, and a center perpendicular to the optical axis passing through the heat dissipation center and perpendicular to the first illuminating member, and the convection The hole has a pair of flow centers, and a center line passing through the center of the convection and the heat dissipation center of the first heat dissipation hole, and the angle between the center line and the center vertical line is not more than 12 degrees. The vehicular lamp according to claim 3, wherein the convection hole is located between the light transmissive wall of the lamp cover and a front end surface of the first reflective wall. A lamp according to claim 3, wherein the lamp housing The shell wall has a first receiving portion for receiving the first reflecting seat, and a connecting sleeve connected to the first receiving portion and adjacent to the light transmissive wall of the lamp cover, and the lamp housing further comprises at least one An auxiliary vent hole on a receiving portion. The vehicular lamp of claim 3, wherein the first reflective wall of the first reflector has a first reflective surface defining a first reflective space, the first reflective surface having a rearward An optical surface, and a non-optical surface positioned in front of the optical surface, wherein the first reflective seat further includes a reflective heat dissipation hole disposed on the first reflective wall, wherein the reflective heat dissipation hole is located on the optical surface Adjacent to the non-optical face. The vehicular lamp of claim 3, wherein the casing wall of the lamp housing has a first receiving portion corresponding to the first reflecting seat, and a second receiving portion disposed to the left and right of the first receiving portion. And a connecting sleeve connecting the first receiving portion and the second receiving portion and adjacent to the light transmissive wall of the lamp cover, and the lamp further comprises a second reflecting seat mounted in the receiving space, and one is mounted on the a second illuminating member in the second reflecting space of the second reflecting seat, the lamp housing further comprising a second heat dissipating hole disposed on the shell wall adjacent to the light transmissive wall.