JP2024003955A - Lamp for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the deterioration of the design performance of a lamp for a vehicle having an electrical contact point of a snow melting mechanism on an inner surface of a lamp cover.

SOLUTION: A lamp for a vehicle comprises a lamp body opened at a front part, a lamp cover constituted of a translucent resin, arranged at an opening part of the lamp body, and forming a lamp chamber, a heat generation member laid on an inner surface of the lamp cover, and generating heat by being fed with power, and an electrical contact point arranged at a terminal end part of the heat generation member on the inner surface of the lamp cover, having a prescribed line width, and constituted of conductive paste. The electrical contact point is formed of a prescribed pattern whose pitch is equal to or smaller than the line width. The electrical contact point is constituted of the conductive paste without a clearance, the external appearance of the electrical contact point viewed from a back face side is thereby improved, and the deterioration of the design performance of the lamp for the vehicle can be suppressed.

SELECTED DRAWING: Figure 6

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a vehicle lamp that includes an electrical contact of a snow melting mechanism on the inner surface of a lamp cover.

Snow adhering to the lamp cover of a vehicle lamp prevents proper irradiation of light. For this reason, there is a vehicle lamp equipped with a snow-melting mechanism in which a heat-generating member that generates heat when power is supplied is placed inside the lamp cover, and the snow is melted using the heat generated by the heat-generating member (for example, Patent Document 1 and Patent Document 2). A power supply mechanism to the heat generating member is provided on the lamp body side, and an electrical contact point for supplying power from the power supply mechanism is provided at the end of the heat generating member on the inner surface of the lamp cover. The heat generating member generates heat by being supplied with power from the power supply mechanism.

Here, a conventional electrical contact will be explained using FIG. 11. FIG. 11 shows a conventional electrical contact 920 provided at the distal end of the heat generating member 906. FIG. 11(A) shows a state without the receiving member 923 (only the conductive paste). FIG. 11(B) shows the electrical contact 920 viewed from inside the lamp chamber. FIG. 11C shows the electrical contact 920 viewed from outside the lamp room. In FIG. 11, the conductive paste is shown colored with light black. The conductive adhesive is shown colored in dark ink.

As shown in FIG. 11, the electrical contact 920 is provided at the end of the heat generating member 906 and is made of conductive paste. The electrical contact 920 is made by applying a viscous liquid conductive paste to a predetermined area in a zigzag pattern, and then using a conductive adhesive 929 to attach a receiving member 923, which is a metal plate, to the surface of the conductive paste. Can be attached.

Patent Application No. 2021-195302 JP2020-205234

However, since the lamp cover is mainly made of a transparent member, the above configuration has a problem in that the back surface of the electrical contact 920 can be seen from the outside, resulting in poor appearance (see FIG. 11C).

The present invention has been made in view of this problem, and provides a vehicular lamp that has an electrical contact inside the lamp cover and has an improved appearance from the outside.

In order to solve the above problem, a vehicle lamp according to an aspect of the present disclosure includes a lamp body with an open front, a lamp cover that is attached to the opening of the lamp body and forms a lamp chamber, and a lamp cover that is attached to the opening of the lamp body to form a lamp chamber. A heat generating member laid on an inner surface and generating heat when supplied with electricity; and an electrical contact provided at a distal end of the heat generating member on the inner surface of the lamp cover, the electrical contact being connected to a predetermined line. The conductive paste is made of a conductive paste having a width, and is formed in a predetermined pattern with a pitch equal to or less than the line width.

According to this aspect, the electrical contacts are formed with conductive paste without gaps, and deterioration in appearance from the outside due to the formation of the electrical contacts is suppressed.

Further, in one embodiment, the heat generating member is made of the conductive paste, and the heat generating member and the electrical contact are continuously and integrally formed.

Moreover, in a certain aspect, the electrical contact and the heat generating member are configured to be connected through a plurality of contacts.

Moreover, in a certain aspect, the electrical contact and the heat generating member are configured to be connected while decreasing in width from the electrical contact toward the heat generating member.
According to this aspect, disconnection is likely to occur at a location between the electrical contact and the heat generating member, but with the above configuration, the occurrence of disconnection can be suppressed.

According to one embodiment, a metal plate receiving member serving as a power feeding point is directly attached to the surface of the electrical contact.

Further, according to one aspect, the electrical contact is provided on an inner surface of a side surface of the lamp cover.

As is clear from the above description, it is possible to provide a vehicle lamp that has an electrical contact inside the lamp cover and has an improved appearance from the outside.

FIG. 1 is a perspective view of a vehicle lamp according to a first embodiment. FIG. 2 is a front view illustrating a schematic configuration of the vehicle lamp. This is a vehicle lamp with the lamp cover removed (lamp cover and lamp body open). Internal components have been omitted. FIG. 3 is an end view taken along the line IV-IV in FIG. 2. FIG. FIG. 3 is a perspective view of a power feeding section and electrical contacts. FIG. 3 is an enlarged view of electrical contacts. This is a modification of the electrical contact. This is another modification of the electrical contact. FIG. 3 is a perspective view of a vehicle lamp according to a second embodiment. FIG. 3 is an exploded perspective view of a vehicle lamp according to a second embodiment. Shown with the lamp cover removed. A conventional electrical contact is shown.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The embodiments are illustrative rather than limiting the invention, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention. In addition, in the following description of the embodiment and modified examples, the same configurations are denoted by the same reference numerals, and overlapping description will be omitted as appropriate. Note that in each figure, dimensions and ratios do not reflect actual numerical values, but schematically represent the configuration.

(First embodiment)
FIG. 1 is a perspective view of a vehicle lamp 1 according to a first embodiment. FIG. 2 is a front view showing a schematic configuration of the vehicle lamp 1. As shown in FIG.

As shown in FIGS. 1 and 2, the vehicle lamp 1 is a headlamp, and is mounted as a pair on the left and right corners of the front portion of the vehicle.

The vehicle lamp 1 includes a lamp body 2 and a lamp cover 4 as a lamp housing. The lamp body 2 is a casing with an opening at the front, and a welding flange 2a is provided around the opening. By welding the lamp cover 4 to the flange portion 2a, the lamp cover 4 is attached to the opening of the lamp body 2, and a lamp chamber S is formed inside. The lamp cover 4 is a so-called outer cover, and is a substantially transparent lens made of a transparent resin such as polycarbonate.

The defined lamp chamber S accommodates a high beam lamp unit Hi and a low beam lamp unit Lo. The high beam lamp unit Hi/low beam lamp unit Lo is an optical unit configured to emit light emitted from a light source forward to form a high beam light distribution/low beam light distribution in front of the vehicle. Each of the lamp units Hi and Lo uses a conventionally well-known configuration, for example, a reflective type, projector type, or other type of lamp unit, and the type thereof does not matter. A light emitting element that does not generate heat, such as an LED (Light Emitting Diode), an LD (Laser Diode), or an EL (Electro Luminescence) element, is used as a light source for each of the lamp units Lo and Hi.

A heat generating member 6 is laid on the inner surface of the lamp cover 4, and the heat wire circuit pattern generates heat when supplied with electricity. The heat generating member 6 has a linear configuration and is provided on almost the entire inner surface of the lamp cover 4 in a predetermined wiring pattern. The heat generated by the heat generating member 6 melts snow and ice adhering to the outer surface of the lamp cover 4, eliminates fogging that has formed inside and outside, and ensures appropriate light distribution of the lamp units Hi and Lo. . The snow melting function of the vehicle lamp 1 is implemented by the heat generating member 6.

In this embodiment, the heat generating member 6 is made of conductive paste. For example, a viscous liquid conductive paste such as silver paste is laid on the inner surface of the lamp cover 4 in a desired circuit pattern. By supplying power to the heat generating member 6, the heat generating member 6 is resistance-heated, thereby raising the temperature of the heat generating member 6 to a temperature at which it can melt snow. Since the heat generating member 6 is elongated and has a predetermined line width W, the decrease in the transmittance of the lamp cover 4 is suppressed within an allowable range. Preferably, the conductive paste contains a material with relatively low conductivity, such as tungsten, molybdenum, or nickel chromium. As shown in FIG. 1, an example of the wiring is a pattern in which the linear heat generating members 6 continue in a substantially parallel manner while meandering in a zigzag pattern in the left-right direction. The wiring pattern of the heat generating member 6 is not limited to this, and it is sufficient that the wiring pattern of the heat generating member 6 is laid comprehensively in the light transmitting portion of the lamp cover 4, mainly in front of the lamp units Hi and Lo.

Electrical contacts 20, 20 are formed at the end portions of the heat generating member 6, which are the starting and ending points. The electrical contacts 20, 20 are power supply points for the heat generating member 6, and the heat generating member 6 is supplied with power from a vehicle battery connected via the electrical contacts 20.

The vehicle lamp 1 includes a power supply section 30 inside the lamp body 2, which is a mechanism that is electrically connected to the electrical contacts 20 and supplies power to the heat generating member 6. The power supply unit 30 is connected to the vehicle battery, and the connection terminal of the power supply unit 30 comes into contact with the electrical contact 20 and is electrically connected to the electrical contacts 20, 20, so that the heat generating member 6 is connected to the vehicle battery. Powered by

(Power supply part)
FIG. 3 shows the vehicle lamp 1 with the lamp cover 4 removed (lamp cover 4 and lamp body 2 opened). Internal mechanisms such as lamp units Hi and Lo are omitted. 4 is an end view taken along line IV-IV in FIG. 2. FIG. FIG. 5 is a perspective view showing the power feeding section and the electrical contacts separated.

As shown in FIG. 3, the electrical contacts 20, 20 are provided near the center of the lower part of the inner surface of the lamp cover 4. As shown in FIG. The power supply section 30 is provided at the lower center near the opening of the lamp body 2 corresponding to the arrangement of the electrical contacts 20, 20.

As shown in FIGS. 4 and 5, the power supply unit 30 includes a pair of terminals 31, 31, a housing 32, a connector 34, and a board 39 on which these are mounted.

The substrate 39 formed of a rectangular thin plate is arranged with its longitudinal direction aligned with the left and right directions, and is attached directly or indirectly to the inner wall of the lamp cover 4 with its surface 39a facing the opening of the lamp body 2.

The terminal 31 is a pogo pin, and is a retractable rod-shaped terminal biased by an elastic member (not shown) such as a spring. The entire body is gold-plated, and the tip is hemispherical. A pair of terminals 31, 31 are attached to a substrate 39 via a housing 32. A pair of terminals 31, 31 are biased and protrude from the housing 32 mounted on the front surface 39a of the board 39 toward the lamp cover 4 in front. The terminal 31 is a terminal configured to be elastically deformable, and is not limited to a pogo pin; for example, a plate spring terminal formed by bending a thin metal plate into an S shape, a spring-like spring terminal, etc. can be used. . It is arranged so that the direction in which it can be elastically deformed is aligned with the direction facing the lamp cover 4 (front-back direction).

The connector 34 is mounted on the back side of the board 39. The connector 34 is electrically connected to the terminal 31, and a lead wire terminal connected to a vehicle battery (not shown) is fitted into the connector 34.

The terminals 31, 31 are disposed opposite the electrical contacts 20, 20, and the terminals 31, 31 are energized and come into contact with the electrical contacts 20, 20, and are electrically connected to the electrical contacts 20, 20. Ru.

The electrical contact 20 has a receiving member 23 as a receiving member for the terminal 31, with which the terminal 31 comes into contact. The receiving member 23 is a circular thin metal plate plated with gold, and is attached with a conductive adhesive (not shown).

When assembling the vehicle lamp 1, the power supply section 30 is first attached to the lamp body 2 in a process prior to welding the lamp cover 4 and the lamp body 2 together. Similarly, in a pre-welding step, the heat generating member 6 and the electrical contacts 20 at the ends of the heat generating member 6 are provided on the inner surface of the lamp cover 4.

Next, in a process of welding the lamp cover 4 and the lamp body 2, the lamp cover 4 is fitted to the opening of the lamp body 2. As a result, the terminal 31 is held in biased contact with the receiving member 23, and the two are electrically coupled. In this state, the lamp cover 4 is welded to the lamp body 2.

The current supplied from the vehicle battery is supplied to the heat generating member 6 through the lead wire terminal (not shown) attached to the connector 34, the terminal 31, and the electrical contact 20 in this order.

In the welding process, when the lamp body 2 and the lamp cover 4 are placed facing each other, they are naturally electrically coupled due to the biasing force of the terminal 31 against the receiving member 23, so no electrical coupling is required. Easy to assemble. In addition, since the terminal 31 is electrically coupled to the receiving member 23 in a biased state, the electrical coupling is stabilized.

(Electrical contact 20)
The electrical contact 20 will be explained in detail. FIG. 6 shows electrical contact 20. FIG. FIG. 6(A) shows the state before the receiving member 23 is attached. FIG. 6(B) shows the state after the receiving member 23 is attached. FIG. 7 shows a modification of the electrical contact 20. Note that in FIGS. 6 and 7, the conductive paste is shown colored with light black.

The electrical contacts 20 are formed by wiring conductive paste with a predetermined line width W on the inner surface of the lamp cover 4 in a predetermined pattern. The heat generating member 6 in this embodiment is formed by laying conductive paste in a predetermined wiring pattern on the inside (back side) surface of the lamp cover 4. Furthermore, the same conductive paste as that constituting the heat generating member 6 is laid in a predetermined small area at the end of the heat generating member 6 in a predetermined pattern with no gaps, so that a rectangular shape is formed. Electrical contacts 20 are formed.

As shown in FIG. 6A, the electrical contact 20 is formed by applying a viscous liquid conductive paste to a predetermined area at a predetermined pitch P in a predetermined pattern while maintaining a predetermined line width W. It is formed by this. The conductive paste constituting the heat generating member 6 and the electrical contacts 20 is applied in the form of a liquid heated to a melting temperature, and after being formed, it is solidified by cooling and drying. The area covered with the conductive paste and where the electrical contact 20 is formed is referred to as a pad area 21.

When providing the electrical contact 20, a viscous liquid conductive paste is used to apply the conductive paste with a predetermined line width W to one corner of one edge of the pad area 21 (in FIG. Apply it in one direction (rightward) from the lower left), and when it reaches the end (right side), move it slightly at right angles (upward) at a predetermined interval (pitch P), and then apply it in the opposite direction (leftward). ), and when it reaches the opposite end (left side), it is moved slightly perpendicularly in the same direction (upward) at the same interval (pitch P). This is repeated many times until the other edge (upper side) of the pad area 21 is reached. By setting the pitch P of folding and application to be equal to or less than the line width W of the conductive paste, the pad area 21 can be filled with the conductive paste without any gaps.

As shown in FIG. 7B, the pad area 21 is configured to be one size larger than the receiving member 23, and the receiving member 23 is attached to the center of the filled-in pad area 21 with a conductive adhesive (not shown).

Since the electrical contacts 20 are provided inside the light-transmitting lamp cover 4, the back surface of the electrical contacts 20 is visible from the outside through the transparent lamp cover 4. If there is a gap in the pad area where the conductive paste is not applied, the appearance will be poor from the outside, and furthermore, the receiving member and the conductive adhesive of the receiving member will be visible through the gap, further worsening the appearance (Figure 11 reference). The appearance of the vehicle lamp 1 is improved by covering the pad region 21 with conductive paste without any gaps and forming the electrical contacts 20. Furthermore, by forming the pad region 21 with the linear conductive paste in this way, adjacent linear conductive pastes are connected without any gaps, so that the electrical resistance value of the electrical contact 20 can be lowered. can.

Furthermore, after forming the electrical contact 20 with the conductive paste having a line width W, starting from the end point of application at the electrical contact 20, continue to apply the same conductive paste to the back surface of the lamp cover 4 in a predetermined manner. The heat generating member 6 is formed by coating in a wiring pattern. Next, the other electrical contact 20 is formed at the end point of the heat generating member 6 by the above method. Thereby, the electrical contacts 20, 20 can be continuously and integrally formed at the starting point/ending point of the heat generating member 6. In this way, by forming the heat generating member 6 and the electrical contacts 20 using the same conductive paste in one stroke with a predetermined line width W, the electrical This suppresses the occurrence of disconnection between the target contact point 20 and the heat generating member 6 (connection portion 25 in FIG. 6(B)). In addition, the electrical contacts 20, 20 and the heat generating member 6 can be formed in succession, improving work efficiency.

Since the conductive paste having a predetermined line width W is drawn and overlapped portions are formed between adjacent linear conductive pastes, stepped portions are formed that rise at predetermined width intervals. In addition, the thickness of the conductive paste having a line width W is slightly different between the ends and the center of the line width. This confirms the formation process and form of the conductive paste.

(Modified example)
FIG. 7 shows a modification of the electrical contact 20. The electrical contacts 20A to 20F shown in FIGS. 7(A) to 7(F) are all formed by continuously drawing conductive paste with a predetermined line width W at a pitch P less than the line width W, and It is configured in the shape of

As shown in FIG. 7A, the electrical contact 20A has a circular outer shape (the pad area is circular), and is formed by drawing a conductive paste with a line width W in a spiral shape at a pitch P that is less than the line width W. is formed.

As shown in FIG. 7(B), the electrical contact 20B has a substantially hexagonal outer shape (the pad area is hexagonal), and conductive paste with a line width W is applied at a pitch while changing the coating distance on one side. It is formed by sequentially applying P. Specifically, in line with the hexagonal shape of the pad area, the application distance is increased after the first side is applied, and once half of the area is applied, the application distance is decreased this time, so that the outer shape is approximately A hexagonal electrical contact 20B can be formed. The electrical contact 20B is formed by coating without changing the pitch P even if the linear distance of each coating is changed.

In this way, the external shape of the electrical contact is not limited to a rectangle, but can be circular, polygonal, free-form, or the like. In addition, the conductive paste with a line width W is applied not only in a zigzag pattern from side to side, but also in a spiral manner from the outer edge of the pad area inward, or conversely, in a spiral manner outward from the center of the pad area. It may also be applied to form electrical contacts.

As shown in FIG. 7(C), the electrical contact 20C is formed in a rectangular shape, and the width is gradually reduced from one side of the rectangle of the electrical contact 20C so that it is connected to the linear heat generating member 6. A triangular connecting portion 25C is provided. The connecting portion 25C is also formed in a single stroke shape using conductive paste with a line width W, and the electrical contact 20C, the connecting portion 25C, and the heat generating member 6 are all continuously and integrally formed. This is because, as mentioned above, disconnection is likely to occur between the electrical contact and the heat generating member, so the connection is made thicker to strengthen the connection. By providing the connecting portion 25C configured as described above, the shrinkage difference due to curing between the rectangular electrical contact 20C and the linear heat generating member 6 is reduced, and the connection between the electrical contact 20C and the heat generating member 6 is reduced. This suppressed the occurrence of wire breaks.

As shown in FIG. 7(D), the connecting portion 25D of the electrical contact 20D is similarly configured. In this way, it is sufficient that the connecting portion connects the electrical contact and the heat generating member while reducing its width as a whole, and its shape, size, and application route are not limited.

As shown in FIG. 7E, the rectangular electrical contact 20E is connected to the linear heat generating member 6 at a plurality of locations by the connecting portion 25E. By providing a plurality of connection points between the electrical contacts and the heat generating member, even if one of them is disconnected, the power supply to the heat generating member is maintained. The connecting portion 25E is also formed in a single stroke shape using conductive paste with a line width W, and the electrical contact 20E, the connecting portion 25E, and the heat generating member 6 are all continuously and integrally formed, so that the connection is strong. The occurrence of wire breakage is suppressed.

As shown in FIG. 7(F), the connecting portion 25F of the electrical contact 20F is similarly configured. It is sufficient that the electrical contacts and the heat generating member are connected at a plurality of locations, and the form and shape of the connection portions are not limited.

Furthermore, although the receiving member 23 is attached using a conductive adhesive (not shown), it may be attached directly to the liquid conductive paste before it hardens, without using the conductive adhesive. In this embodiment, since the electrical contact 20 is formed by applying a viscous liquid conductive paste, the receiving member 23 is directly pasted using the property of the conductive paste that hardens from liquid. By doing so, the steps of applying and pasting the conductive adhesive and further drying the conductive adhesive can be omitted.

(Modification 2)
FIG. 8 shows another modification of the electrical contact 20. FIG. 8(A) is a rear view (view from inside the lamp chamber) of an electrical contact 20G that is a modified example. FIG. 8(B) is a cross-sectional view of the electrical contact 20G. FIG. 8(C) shows the process of forming the electrical contact 20G. In FIG. 8, the conductive paste is shown colored with light black, and the frame portion is shown colored with dark light black.

As shown in FIG. 8(A), the electrical contact 20G has a pad portion 26G formed of a conductive paste applied in a rectangular shape, and a predetermined width over the entire circumference at the side edge of the pad portion 26G. It has a frame portion 27G that is formed to bulge with a . The frame portion 27G is made of the same conductive paste as the pad portion 26G, but is made higher than the pad portion 26G. A boundary line 28G is visually recognized as a difference in level from the portion 26G. The receiving member 23 has an outer shape smaller than the inner area of the boundary line 28G, and is arranged approximately at the center inside the frame portion 27G.

As shown in FIG. 8(C), in forming the electrical contact 20G, first, a conductive paste with a line width W is applied in a zigzag rectangular shape in one stroke, so that the electrical contact 20G is formed continuously from the heat generating member 6. A rectangular pad portion 26G is formed. Next, from the end point of applying the conductive paste on the pad section 26G (lower left corner in FIG. 8), continue to trace the edge of the pad section 26G, and then continue from above the pad section 26G with a line width W. By applying the conductive paste, a frame portion 27G having a line width W is formed. Finally, before the conductive paste hardens, the receiving member 23 is placed at the center inside the frame portion 27G (inside the boundary line 28G). This forms an electrical contact 20G.

When the electrical contact has a relatively large area, it has better moldability and it is easier to arrange the receiving member at the target position. However, if the external shape of the electrical contact is larger than the external shape of the receiving member by more than a certain amount, then when placing the receiving member, a misalignment will occur where the receiving member is placed more than the tolerance from the center of the pad section where it is installed. Cheap. On the other hand, in the electrical contact point 20G, the frame portion 27G is provided as a mark, and the receiving member 23 is placed inside the boundary line 28G using the boundary line 28G as a landmark, thereby suppressing misalignment of the receiving member 23. . Since the frame portion 27G can be formed continuously from the heat generating member 6 and the pad portion 26G with a single stroke, moldability is also good.

(Second embodiment)
FIG. 9 is a perspective view of a vehicle lamp 101 according to the second embodiment. FIG. 10 is an exploded perspective view of the vehicle lamp 101. Shown with the lamp cover removed.

As shown in FIG. 9, the vehicle lamp 101 includes a lamp body 102 and a lamp cover 104. The lamp body 102 is a substantially rectangular parallelepiped-shaped housing with an open front, but one side surface (the left side surface in the vehicle lamp 101) is shorter than the other side surface. Therefore, the vehicle lamp 101 is open on two sides: the front side and the front side of the left side continuous to the front side. The flange portion 102a provided at the opening of the lamp body 102 is provided around the opening while being bent along two sides of the opening.

As shown in FIG. 10, the lamp cover 104 has a front surface 104a, a side surface 104b, and a side flange portion 104c. The lamp cover 104 is configured to cover the opening of the lamp body 102, with the front surface 104a closing the front opening of the lamp body 102 and the side surface 102b closing the side opening of the lamp body 102. A side flange portion 104c of 104 is configured to fit a part of a flange portion 102a provided on the side surface of the lamp body 102. The lamp cover 104 is attached to the opening of the lamp body 102 and welded to form a lamp chamber S inside.

A heat generating member 6 is placed on the inner surface of the front surface 104a of the lamp cover 104, and an end portion of the heat generating member 6 is located on the side surface 104b of the lamp cover 104. Electrical contacts 120, 120 are provided at the distal end of the heat generating member 6 and arranged vertically below the side surface 104b of the lamp cover 104, which is elongated and vertically structured. The electrical contact 120 has the same configuration as the electrical contact 20 except for the arrangement position (on the side surface of the lamp cover 104), so a detailed description thereof will be omitted.

The vehicle lamp 101 is electrically connected to the electrical contacts 120 and includes a power supply section 130 inside the lamp body 102 as a mechanism for supplying power to the heat generating member 6 . The power feeding unit 130 includes a pair of terminals 31, 31, a housing 32, a connector 34, and a board 39 to which these are attached. The power supply section 130 has the same configuration as the power supply section 30, and differs only in the mounting direction and arrangement to the lamp body 102.

That is, the power supply section 130 is arranged at the lower part of the side opening of the lamp body 102, corresponding to the arrangement of the electrical contacts 120, 120, with the longitudinal direction of the substrate 39 aligned with the up-down direction.

The substrate 39 is attached to the inner wall of the lamp body 102 with its surface 39a facing the side opening of the lamp body 102. As a result, the pair of terminals 31, 31 are arranged toward the front opening of the lamp body 102, with the direction in which they can be elastically deformed being the side surface direction (left-right direction) of the lamp body 102.
Since the terminals 31, 31 are arranged opposite the electrical contacts 120, 120, when the lamp cover 104 is attached to the opening of the lamp body 102, the terminals 31, 31 are energized and the electrical contacts 120, 120 and is electrically connected to the electrical contacts 120, 120. The current supplied from the vehicle battery is supplied to the heat generating member 6 through the lead wire terminal (not shown) attached to the connector 34, the terminal 31, and the electrical contact 120 in this order.

By providing the electrical contact 120 on the side of the vehicle lamp 101, the visibility of the electrical contact 120 from the outside, especially from the front, is reduced, and the design of the vehicle lamp 101 is improved by providing the electrical contact 120. decrease is suppressed.

Note that the configuration of the present disclosure is suitable not only for headlights but also for marker lights with a snow melting function for cold region specifications, rear lamps, etc. as long as they have a lamp cover and a lamp body.

The preferred embodiments of the present invention have been described above, but the above embodiments are only examples of the present invention, and these can be combined based on the knowledge of those skilled in the art, and such embodiments are also included in the present invention. Included in the range.

1: Vehicle lamp 2: Lamp body 4: Lamp cover 6: Heat generating member 20: Electrical contact 23: Receiving member 39a: Surface 101: Vehicle lamp 102: Lamp body P: Pitch S: Lamp chamber W: Line width

Claims (6)

A lamp body with an open front,
a lamp cover that is attached to the opening of the lamp body to form a lamp chamber;
a heat generating member that is laid on the inner surface of the lamp cover and generates heat when supplied with electricity;
an electrical contact provided at a distal end of the heat generating member on the inner surface of the lamp cover;
Equipped with
The electrical contacts are made of conductive paste having a predetermined line width, and are formed in a predetermined pattern with a pitch equal to or less than the line width.
A vehicle lamp characterized by: The heat generating member is made of the conductive paste, and the heat generating member and the electrical contact are continuously and integrally formed.
The vehicular lamp according to claim 1, characterized in that: The electrical contact and the heat generating member are connected through a plurality of contacts,
The vehicular lamp according to claim 2, characterized in that: The electrical contact and the heat generating member are connected while decreasing in width from the electrical contact toward the heat generating member.
The vehicular lamp according to claim 2, characterized in that: A metal plate receiving member serving as a power feeding point is directly attached to the surface of the electrical contact.
The vehicle lamp according to any one of claims 1 to 4, characterized in that: The electrical contact is provided on an inner surface of a side surface of the lamp cover.
The vehicular lamp according to claim 1, characterized in that: