Heat dissipation demisting car lamp

Abstract

The invention discloses a heat dissipation demisting car lamp. The car lamp comprises a lamp shell; the mask is arranged on the lamp shell, and the lamp shell and the mask form a containing cavity; the module heat radiator is arranged in the accommodating cavity; the demisting air duct structure is arranged in the accommodating cavity; the demisting air duct structure is provided with a flow guide cavity, and the flow guide cavity is provided with an air inlet and an air outlet; the fan is arranged in the flow guide cavity and is positioned between the air inlet and the air outlet; and the air outlet is formed along the side edge of the flow guide cavity. According to the heat dissipation demisting car lamp, the demisting air duct structure is provided with the flow guide cavity, the flow guide cavity is provided with the air inlet and the air outlet, the air outlet of the demisting air duct structure is formed along the side edge of the flow guide cavity, and through the arrangement of the air outlet, the air outlet range can be expanded, and the heat dissipation demisting effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of motor vehicle lamps, and in particular to a heat dissipation and defogger lamp. Background Art

[0002] When the car lights are working, the high and low beam modules will generate a lot of heat, which will increase the temperature inside the lamp. There is a temperature difference between the inside and outside of the lamp. The water vapor in the lamp will form fog when it encounters the mask with a lower temperature, affecting the lighting state of the lamp. At the same time, if this heat cannot be dissipated in time for a long time, it will accelerate the aging of the components and even burn out the lamp beads or circuits, shortening their service life, and also affecting the luminous efficiency of the lamp, thereby affecting the lighting state.

[0003] At present, the existing headlight heat dissipation is generally achieved by exchanging air inside and outside the headlight, and defogger is achieved by using replaceable desiccant. However, the air circulation inside and outside the headlight will affect the effect of the desiccant. Although it can dissipate heat, it will also affect the defogger effect. At the same time, the replacement of the desiccant increases the material and labor costs. Therefore, how to better perform the heat dissipation and anti-fogging work of the headlight is a problem that still needs to be solved. Summary of the invention

[0004] Based on the above technical problem, the present invention provides a heat dissipation and defogger lamp.

[0005] A heat dissipation and defogger vehicle lamp, comprising:

[0006] Lamp housing;

[0007] A mask, the mask is arranged on the lamp housing, and the lamp housing and the mask together form a receiving cavity;

[0008] A module radiator, the module radiator is arranged in the accommodating cavity;

[0009] A defogger duct structure, wherein the defogger duct structure is arranged in the accommodating cavity; the defogger duct structure is provided with a guide cavity, and the guide cavity is provided with an air inlet and an air outlet;

[0010] A fan, the fan is arranged in the guide cavity and located between the air inlet and the air outlet;

[0011] The air outlet is arranged along the side of the guide cavity.

[0012] Optionally, the demisting air duct structure includes a first air duct structure and a second air duct structure, and the first air duct structure and the second air duct structure together form the guide cavity;

[0013] The guide cavity comprises an air inlet guide cavity and an air outlet guide cavity;

[0014] The air inlet guide cavity is connected to the air outlet guide cavity, and the fan is arranged between the air inlet guide cavity and the air outlet guide cavity;

[0015] The air outlet is arranged on the side of the air outlet guiding cavity.

[0016] Optionally, there is one air outlet, and one air outlet extends from one end of the air outlet guide cavity to the other end.

[0017] Optionally, there are multiple air outlets, and the multiple air outlets are arranged at intervals from one end to the other end of the air outlet guide cavity.

[0018] Optionally, the first air duct structure includes a first air outlet and a first air inlet;

[0019] The second air duct structure includes a second air outlet and a second air inlet;

[0020] The first air inlet portion and the second air inlet portion together form the air inlet guide cavity, and the first air outlet portion and the second air outlet portion together form the air outlet guide cavity.

[0021] Optionally, the first air outlet portion includes an arc-shaped cover plate, and the second air outlet portion includes a groove;

[0022] The arc-shaped cover plate is detachably connected to the groove.

[0023] The arc-shaped cover plate and the groove form the air outlet guide cavity and the air outlet.

[0024] Optionally, the arc-shaped cover plate comprises a first panel, a second panel and a first end surface; one side of the first panel is connected to one side of the second panel, and the connection between the first panel and the second panel is in an arc shape; the second end surface connects the end surfaces of the first panel and the second panel, and the connection between the first end surface and the first panel and the second panel is in an arc shape;

[0025] The groove has a first side surface and a second side surface, a bottom surface connecting the lower edge of the first side surface and the lower edge of the second side surface, and a second end surface connecting the end surfaces of the first side surface, the second side surface and the bottom surface;

[0026] The other side of the first panel is connected to the upper side of the first side surface, the lower side of the first end surface is connected to the upper side of the second end surface, and the second panel is located on the groove;

[0027] The air outlet is formed by a gap between the other side of the second panel and the upper side of the second side.

[0028] Optionally, the second air outlet portion further includes a wing plate, and the wing plate is arranged on an upper edge of the second side surface.

[0029] Optionally, the air outlet guide cavity narrows from an end close to the fan to an end away from the fan.

[0030] Optionally, the air outlet faces the mask.

[0031] The present application provides a heat dissipation and defogger headlight, which is provided with a defogger air duct structure, the defogger air duct structure is provided with a guide cavity, the guide cavity is provided with a fan, an air inlet and an air outlet, when in use, the fan draws the wind emitted from the module radiator from the air inlet into the guide cavity, and flows along the guide cavity toward the air outlet, so as to achieve the effect of heat dissipation and defogger at the same time. The air outlet of the defogger air duct structure is arranged along the side of the guide cavity, through the arrangement of the air outlet, part of the wind flows out from the air outlet, and part of the wind continues to flow along the guide direction, which can expand the range of the wind outlet, further improve the effect of heat dissipation and defogger, and extend the service life of the headlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 is a cross-sectional schematic diagram of a heat dissipation and defogger lamp in one embodiment;

[0034] Figure 2 This is a schematic diagram of the structure of a heat dissipation and defogger lamp in one embodiment;

[0035] Figure 3 This is a schematic diagram of the structure of the defogger air duct structure in one embodiment;

[0036] Figure 4 Schematic diagram of the decomposition of the defogger duct structure in one embodiment.

[0037] Among them, 1. lamp housing; 2. mask; 3. module heat sink; 4. defogger air duct structure; 41. air inlet; 42. air outlet; 5. fan; 6. first air duct structure; 61. first air outlet; 62. first air inlet; 63. arc cover; 64. first panel; 65. second panel; 66. first end face; 7. second air duct structure; 71. second air outlet; 72. second air inlet; 73. groove; 74. wing plate; 75. first side face; 76. second side face; 77. bottom face; 78. second end face; 8. limit groove; 81. first groove; 82. second groove; 9. upper cover; 10. main decorative frame.

[0038] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] refer to Figures 1 to 3The present application provides a heat dissipation and defogger lamp for a vehicle, comprising: a lamp housing 1; a mask 2, wherein the mask 2 is arranged on the lamp housing 1, and the lamp housing 1 and the mask 2 constitute a receiving cavity; a module radiator 3, wherein the module radiator 3 is arranged in the receiving cavity; a defogger duct structure 4, wherein the defogger duct structure 4 is arranged in the receiving cavity; the defogger duct structure 4 is provided with a guide cavity, wherein the guide cavity is provided with an air inlet 41 and an air outlet 42; a fan 5, wherein the fan 5 is arranged in the guide cavity and is located between the air inlet 41 and the air outlet 42; the fan is used to suck air from the air inlet 41 and make the wind flow along the guide cavity to the air outlet 42 for discharge; the air outlet 42 is arranged along the side of the wind flow direction in the guide cavity; wherein the air outlet 42 is arranged along the guide direction; the guide direction refers to the direction in which the wind flows in the guide cavity.

[0043] In one embodiment, a defogger duct structure 4 and a fan 5 are provided in the lamp accommodation cavity, and the defogger duct structure 4 is provided with a guide cavity, and the guide cavity is provided with an air inlet 41 and an air outlet 42, wherein the air outlet 41 is provided along the guide direction. When in use, the fan 5 allows wind to enter the guide cavity from the air inlet 41, and blows the wind along the guide cavity to the guide direction of the air outlet, and the wind enters the guide cavity from the air inlet 41, and flows along the guide cavity to the direction of the air outlet 42. The air outlet of the defogger duct structure 4 is provided along the guide direction, and through the provision of the air outlet 42, the wind can be blown out from the air outlet 42 opened on the side of the guide cavity along the guide direction, while continuing to flow along the guide cavity, which can expand the range of the wind outlet, improve the heat dissipation and defogger effect, and extend the service life of the lamp.

[0044] In one embodiment, the air outlet 42 faces the mask 2. Through the arrangement of the air outlet 42, the wind can blow toward the mask 2 while continuing to flow along the diversion direction, which can expand the range of the wind. The wind flows in the lamp housing 1, driving the heat of the module radiator 3 to blow toward the mask 2, further improving the effect of heat dissipation and demisting, and extending the service life of the vehicle lamp.

[0045] In one embodiment, the air inlet 41 may be disposed on the module radiator 3. After the module radiator 3 starts to work, the fan 5 will start, and the fan 5 will absorb the heat of the module radiator 3 from the air inlet 41, which can solve the heat dissipation problem, and blow it out from the air outlet 42, so that the hot air is blown to the mask 2 area, so that the temperature in the mask 2 area increases, and the temperature difference between the inside and outside of the mask 2 decreases, thereby solving the fogging problem, thus reducing the use of a set of replaceable desiccant or a set of independent fans and defogger duct mechanisms, thereby achieving structural cost reduction.

[0046] In one embodiment, the defogger air duct structure 4 includes a first air duct structure 6 and a second air duct structure 7, and the first air duct structure 6 and the second air duct structure 7 together form a guide cavity; the guide cavity includes an air inlet guide cavity and an air outlet guide cavity; the air inlet guide cavity and the air outlet guide cavity are connected, and the fan 5 is arranged between the air inlet guide cavity and the air outlet guide cavity; the air outlet is arranged on the side of the air outlet guide cavity.

[0047] In this embodiment, the number of the air outlet is one, and the air outlet extends from one end of the air outlet guide cavity to the other end. Specifically, the first air duct structure 6 includes a first air outlet portion 61 and a first air inlet portion 62; the second air duct structure 7 includes a second air outlet portion 71 and a second air inlet portion 72; the first air inlet portion 62 and the second air inlet portion 72 together form the air inlet guide cavity, and the first air outlet portion 61 and the second air outlet portion 71 together form the air outlet guide cavity.

[0048] Specifically, refer to Figure 1 and Figure 3 The present application provides a heat dissipation and defogger headlight, wherein the first air outlet portion 61 and the first air inlet portion 62 are integrally formed to form a first air duct structure 6, the second air outlet portion 71 and the second air inlet portion 72 are integrally formed to form a second air duct structure 7, and the defogger air duct structure 4 includes an integrally formed first air duct structure 6 and a second air duct structure 7, and the first air duct structure 6 and the second air duct structure 7 can be connected by threaded screws, such as corresponding threaded holes are respectively provided on the first air duct structure 6 and the second air duct structure 7, and the first air duct structure 6 and the second air duct structure 7 are connected by screws and threaded holes. The tightness of the guide cavity formed by the integrally formed first air duct structure 6 and the second air duct structure 7 is greatly improved, which is beneficial to the diversion of wind and improves the effect of diverting wind. The air outlet 42 is a long opening provided from one end of the air outlet guide cavity close to the fan 5 to the other end of the air outlet guide cavity away from the fan 5, further expanding the air outlet range, thereby improving the heat dissipation and defogger effect.

[0049] In one embodiment, if Figure 3 to Figure 4 A limiting groove 8 is provided between the first air duct structure 6 and the second air duct structure 7, and the fan 5 is provided in the limiting groove 8. The limiting groove 8 is composed of a first groove 81 and a second groove 82; one side of the first groove 81 is connected to the first air outlet 61, and the other side is connected to the first air inlet 62; one side of the second groove 82 is connected to the second air outlet 71, and the other side is connected to the second air inlet 72.

[0050] In one embodiment, the first air outlet portion 61 includes an arc-shaped cover plate 63, and the second air outlet portion 71 includes a groove 73; the arc-shaped cover plate 63 and the groove 73 are detachably connected, and the arc-shaped cover plate 63 and the groove 73 constitute the air outlet guide cavity and the air outlet 42.

[0051] Specifically, refer to Figure 1 and Figure 3 The arc-shaped cover plate 63 has a first panel 64, a second panel 65 and a first end surface 66; one side of the first panel 64 is connected to one side of the second panel 65, and the connection between the first panel 64 and the second panel 65 is in an arc shape; the first end surface 66 connects the end surfaces of the first panel 64 and the second panel 65, and the connection between the first end surface 66 and the first panel 64 and the second panel 65 is in an arc shape; the groove 73 has a first side surface 75 and a second side surface 76, and a first side surface 75 is connected to the first side surface 75 the bottom surface 77 of the lower side and the lower side of the second side 76, and the second end surface 77 connecting the first side 75, the second side 76 and the end surface of the bottom surface; the fan 5 is arranged at the other end away from the first end surface 66; the other side of the first panel 64 is connected to the upper side of the first side 75, the lower side of the first end surface 66 is connected to the upper side of the second end surface 78, and the second panel 65 is located on the groove 73; the gap between the other side of the second panel 65 and the upper side of the second side 76 forms the air outlet 42.

[0052] Specifically, the first side surface 75, the second side surface 76, the bottom surface 77 and the second end surface 78 are integrally formed to form the groove 73; the first panel 64, the second panel 65 and the first end surface 66 are integrally formed to form the arc cover 63. The air outlet guide cavity includes the groove space of the groove 73 and the space formed by the arc cover 63 and the groove 73 when the arc cover 63 is arranged in the groove 73; the gap between the other side of the second panel 65 and the upper side of the second side surface 76 forms the air outlet 42 with a long opening. A part of the air blown out by the fan 5 is blown out through the air outlet 42, and the other part of the air blown out by the fan 5 flows along the inner wall of the air outlet guide cavity.

[0053] Specifically, in one embodiment, the arc-shaped cover plate 63 is arranged on the groove 73, and the width of the arc-shaped cover plate 63 is greater than the width of the groove 73. The fan 5 blows air, so that the air flows along the inner wall of the air outlet guide cavity, and the air outlet blows downward and outward relative to the arc-shaped cover plate 63 toward the mask. In one embodiment, the arc-shaped cover plate 63 is arranged under the groove, and the width of the arc-shaped cover plate 63 is less than the width of the groove 73. The fan 5 blows air, so that the air flows along the inner wall of the air outlet guide cavity, and the air outlet blows downward and outward relative to the groove toward the mask.

[0054] In one embodiment, reference Figure 1, the arc-shaped cover plate 63 is arranged on the groove 73, and the width of the arc-shaped cover plate 63 is smaller than the width of the groove 73. The fan 5 blows the wind, so that the wind flows along the inner wall of the air outlet guide cavity. At this time, the wind blows upward and outward relative to the bottom of the groove 73 toward the mask 2. The groove 73 is located below the air outlet 42. When the wind is blown out from the fan 5, it blows all the way to the other end of the groove 73 away from the fan 5. The setting of the groove 73 can save the air volume to a certain extent, ensuring that the wind can continue to blow out from the air outlet 42 while flowing along the inner wall of the groove 73, thereby expanding the blowing range of the wind and improving the demisting effect.

[0055] In one embodiment, the air outlet guiding cavity narrows from an end close to the fan to an end far from the fan.

[0056] Specifically, Figure 4 The groove 73 narrows from the end close to the fan 5 to the end away from the fan 5. Correspondingly, the width of the arc cover plate 63 narrows from the end close to the fan 5 to the end away from the fan 5, so that the air outlet guide cavity narrows from the end close to the fan 5 to the end away from the fan 5. The wind flows along the inner wall of the air outlet guide cavity. As the wind flows toward the end away from the fan 73, the air volume will gradually decrease. By narrowing the air outlet guide cavity, the wind is gathered, the wind outlet effect is uniform, and the wind speed at the air outlet position can be increased. The wind can flow farther, thereby further improving the demisting effect.

[0057] In one embodiment, if Figure 3 , the air outlet 42 narrows from the end close to the fan 5 to the end far from the fan 5. Specifically, the other side of the second panel 65 in the arc-shaped cover plate 63 and the upper side of the second side form an air outlet, and the air outlet 42 can be narrowed by setting the relative distance between the other side of the second panel 65 of the arc-shaped cover plate 63 and the second side 76 of the groove 73; the air outlet 42 can also be narrowed by setting the width of the arc-shaped cover plate 63 and the width of the groove 73, and the air outlet 42 can also be narrowed by adjusting the relative distance between the second side 76 of the groove 73 on the other side of the arc-shaped cover plate 63. By narrowing the air outlet 42, the air outlet speed can be guaranteed, the air outlet can be uniformly discharged, and the heat dissipation and demisting effect can be further improved.

[0058] In one embodiment, the second air outlet portion 72 further includes a wing plate 74, and the wing plate 74 is disposed on the upper side of the second side surface 76. Specifically, the wing plate 74 extends along the upper side of the second side surface 76 toward the outer side of the air outlet 42, and the wind passes through the air outlet 42 and flows out along the wing plate 74. The wing plate 74 guides the air outlet, directing the air outlet toward the mask 2, thereby improving the demisting and heat dissipation effect.

[0059] In this embodiment, the vehicle lamp further includes an upper cover plate 9 and a main decorative frame 10; there is a gap between the upper cover plate 9 and the main decorative frame 10 and the mask 2, and there is also a gap between the upper cover plate 9 and the main decorative frame 10 and the lamp housing 1, and the existing gap has a guiding effect on the outlet air, and the outlet air blows toward the gap along the wing plate 74, and then blows toward the mask 2 along the gap, thereby improving the heat dissipation and demisting effect.

[0060] In another embodiment, there are multiple air outlets, and the multiple air outlets are spaced from one end of the air outlet guide cavity to the other end. There are multiple air outlets 42, and the multiple air outlets 42 are spaced from one end of the air outlet guide cavity close to the fan 5 to the other end of the air outlet guide cavity away from the fan 5. The multiple air outlets 5 can be of the same size or different sizes, and can be evenly spaced or unevenly spaced. When in use, the fan 5 absorbs the heat of the module radiator 3 from the air inlet 41 and blows it out from the multiple air outlets 42, thereby expanding the blowing range and improving the heat dissipation and demisting effect.

[0061] The working process of the vehicle lamp of the present application to achieve heat dissipation and demisting is as follows:

[0062] The air inlet 41 of the defog duct structure 4 is arranged above the module radiator 4, so that the air outlet 42 is close to the mask 2, and the fan 5 is arranged between the air inlet 41 and the air outlet 42. After the module radiator 3 is lit, the fan 5 will start, and the fan 5 will absorb the heat at the position of the module radiator 3 from the air inlet 41, which can solve the heat dissipation problem, and blow it out from the air outlet 42, so that the hot air is blown to the mask 2 area, solving the fogging problem, thus reducing the use of a set of replaceable desiccant or a set of independent fans and defog duct mechanisms, thereby achieving structural cost reduction.

[0063] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A heat dissipation and defogger lamp, characterized in that: include: Lamp housing; A mask, the mask is arranged on the lamp housing, and the lamp housing and the mask together form a receiving cavity; A module radiator, the module radiator is arranged in the accommodating cavity; A defogger duct structure, wherein the defogger duct structure is arranged in the accommodating cavity; the defogger duct structure is provided with a guide cavity, and the guide cavity is provided with an air inlet and an air outlet; A fan, the fan is arranged in the guide cavity and located between the air inlet and the air outlet; The air outlet is arranged along the side of the guide cavity.

2. The heat dissipation and defogger lamp according to claim 1, characterized in that: The demisting air duct structure comprises a first air duct structure and a second air duct structure, and the first air duct structure and the second air duct structure together form the guide cavity; The guide cavity comprises an air inlet guide cavity and an air outlet guide cavity; The air inlet guide cavity is connected to the air outlet guide cavity, and the fan is arranged between the air inlet guide cavity and the air outlet guide cavity; The air outlet is arranged on the side of the air outlet guiding cavity.

3. The heat dissipation and defogger lamp according to claim 2, characterized in that: The number of the air outlet is one, and the air outlet extends from one end of the air outlet guide cavity to the other end.

4. The heat dissipation and defogger lamp according to claim 2, characterized in that: There are multiple air outlets, and the multiple air outlets are arranged at intervals from one end to the other end of the air outlet guide cavity.

5. The heat dissipation and defogger lamp according to claim 2, characterized in that: The first air duct structure includes a first air outlet and a first air inlet; The second air duct structure includes a second air outlet and a second air inlet; The first air inlet portion and the second air inlet portion together form the air inlet guide cavity, and the first air outlet portion and the second air outlet portion together form the air outlet guide cavity.

6. The heat dissipation and defogger lamp according to claim 5, characterized in that: The first air outlet portion includes an arc-shaped cover plate, and the second air outlet portion includes a groove; The arc-shaped cover plate is detachably connected to the groove. The arc-shaped cover plate and the groove form the air outlet guide cavity and the air outlet.

7. The heat dissipation and defogger lamp according to claim 6, characterized in that: The arc-shaped cover plate comprises a first panel, a second panel and a first end surface; one side of the first panel is connected to one side of the second panel, and the connection between the first panel and the second panel is in an arc shape; the first end surface connects the end surfaces of the first panel and the second panel, and the connection between the first end surface and the first panel and the second panel is in an arc shape; The groove has a first side surface and a second side surface, a bottom surface connecting the lower edge of the first side surface and the lower edge of the second side surface, and a second end surface connecting the end surfaces of the first side surface, the second side surface and the bottom surface; The other side of the first panel is connected to the upper side of the first side surface, the lower side of the first end surface is connected to the upper side of the second end surface, and the second panel is located on the groove; The air outlet is formed by a gap between the other side of the second panel and the upper side of the second side.

8. The heat dissipation and defogger lamp according to claim 7, characterized in that: The second air outlet portion further includes a wing plate, and the wing plate is arranged on an upper edge of the second side surface.

9. The heat dissipation and defogger lamp according to claim 2, characterized in that: The air outlet guiding cavity narrows from an end close to the fan to an end far away from the fan.

10. The heat dissipation and defogger lamp according to claim 1, characterized in that: The air outlet faces the mask.

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