A mobile LED lamp

Abstract

The present invention relates to the technical field of lamps, and discloses a mobile LED lamp, comprising: a lamp housing, a side wall of which is provided with heat dissipation holes; a lamp body, a first heat dissipator, which is fixedly connected to the lamp body; a second heat dissipator, which is located on the side of the first heat dissipator facing away from the lamp body; a battery pack, which is located on the side of the second heat dissipator facing away from the first heat dissipator; a driving structure, which is provided on the lamp housing, and which drives the second heat dissipator to move between a heat preservation position and a heat dissipation position, wherein the second heat dissipator closes the heat dissipation holes and abuts against the battery pack when in the heat preservation position, and opens the heat dissipation holes when in the heat dissipation position. The mobile LED lamp of the present invention improves the problem of significant performance degradation of mobile LEDs in low temperature environments.

Description

Technical Field

[0001] The invention relates to the technical field of lamps, and in particular to a mobile LED lamp. Background Art

[0002] LED lights have been widely used in mobile lamps because of their high energy density and high light intensity. Mobile lamps are usually powered by lithium batteries. Lithium batteries are currently divided into lithium carbonate batteries and lithium phosphate batteries based on the composition of their electrolytes. Compared with lithium phosphate batteries, lithium carbonate batteries have the advantage of high energy density, but in low temperature environments, lithium battery performance attenuation is large, and the battery life of the lamp is greatly reduced. Lithium phosphate batteries have lower energy density, but their battery life is relatively reduced in low temperature environments.

[0003] When the current mobile LED lamps are used in cold areas at high latitudes, it is difficult to give full play to the performance of lithium batteries. It can be seen that the current mobile LED lamps still have room for improvement. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the background technology.

[0005] The present invention provides a mobile LED lamp, comprising:

[0006] A lamp housing, wherein a lamp hole is provided on the upper side of the lamp housing, and a heat dissipation through hole is provided on the side wall of the lamp housing;

[0007] A lamp body, wherein the lamp body is connected to the lamp housing at the lamp hole;

[0008] A first heat sink, wherein the first heat sink is fixedly connected to the lamp body;

[0009] a second heat sink, the second heat sink being located on a side of the first heat sink facing away from the lamp body;

[0010] A battery pack, the battery pack is located on a side of the second heat sink facing away from the first heat sink, and the battery pack is fixedly connected to the lamp housing;

[0011] A driving structure is arranged on the lamp housing, and the driving structure drives the second heat sink to move between a heat preservation position and a heat dissipation position. When the second heat sink is at the heat preservation position, the heat dissipation through hole is closed and abuts against the battery pack. When the second heat sink is at the heat dissipation position, the heat dissipation through hole is opened.

[0012] Beneficial effects of the present invention: A mobile LED lamp of the present invention, when the driving structure drives the second heat sink to move to the heat preservation position in a low temperature environment, the second heat sink seals the heat dissipation through-hole, so that the heat generated by the lamp body can be conducted to the battery pack through the first heat sink and the second heat sink, thereby keeping the battery pack warm and making the battery pack work under higher temperature conditions, thereby improving the performance of the battery pack and improving the problem of significant performance degradation of the mobile LED in a low temperature environment.

[0013] As some sub-solutions of the above technical solution, a first heat conducting hole is provided on the first heat sink, a first heat conducting column is provided on the second heat sink, the first heat conducting column extends into the first heat conducting hole, and the first heat conducting column slides along the first heat conducting hole.

[0014] As some sub-solutions of the above technical solution, heat transfer oil is further provided in the first heat transfer hole.

[0015] As some sub-solutions of the above technical solution, a first limiting groove is provided in the first heat conducting hole, a first limiting block is provided on the first heat conducting column, and the first limiting block is located in the first limiting groove.

[0016] As some sub-solutions of the above technical solution, a pressure relief through hole is further provided on the first limit block.

[0017] As some sub-schemes of the above technical scheme, the driving structure includes a spring, a push pin and an adjusting screw. The spring is arranged between the first heat sink and the second heat sink to drive the first heat sink and the second heat sink to move away from each other. The push pin is fixedly connected to the second heat sink. An adjusting screw hole is provided on the lamp housing. The adjusting screw is threadedly connected to the adjusting screw hole, and the tail of the adjusting screw abuts against the push pin.

[0018] As some sub-schemes of the above technical scheme, the lamp housing includes a lamp tube and a lamp cover, the lamp body is arranged at the front end of the lamp tube, the lamp cover can removably close the rear end of the lamp tube, the adjustment screw hole is arranged on the lamp cover, the lamp housing is provided with a guide tube, and the push column slides along the guide tube.

[0019] As some sub-solutions of the above technical solution, the mobile LED lamp also includes a heat spreader, which is fixed to the lamp tube, the battery pack is welded to the heat spreader, and the second heat sink is in contact with the heat spreader when in the insulation position. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1It is a structural schematic diagram of a mobile LED lamp in a heat preservation state;

[0022] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 It is a structural schematic diagram of a mobile LED lamp in a heat dissipation state;

[0024] Figure 4 for Figure 1 A partial enlarged view of point B in the middle.

[0025] In the attached drawings: 1-lamp housing; 11-lamp tube; 112-heat dissipation through hole; 12-lamp cover; 121-guide tube; 2-lamp body;

[0026] 3-first heat sink; 31-first heat conducting hole; 32-first column; 33-bump; 34-first limiting groove;

[0027] 4-second heat sink; 41-first heat conducting column; 411-first limit block; 4111-pressure relief hole; 412-first hole;

[0028] 5-Battery pack;

[0029] 61-adjusting screw; 62-spring;

[0030] 7-Heat-vapor chamber. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, the meaning of "several" is an indefinite quantity, the meaning of "multiple" is more than two, "greater than", "less than", "exceed", etc. are understood as not including the number itself, and "above", "below", "within", etc. are understood as including the number itself. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. The "and / or" that appears in the full text represents three parallel solutions. For example, A and / or B represents the solution satisfied by A, the solution satisfied by B, or the solution satisfied by both A and B.

[0034] In the description of the present invention, if there is a short sentence containing multiple parallel features, the attributive defines the closest feature, for example: B, C, and E connected to D are arranged on A, which means that B is arranged on A and E is connected to D, and does not constitute a limitation on C; but attributives that indicate the relationship between features, such as "interval arrangement" and "circular arrangement", do not belong to this category. If the word "all" is preceded by an attributive, it means that all features in the short sentence are limited, such as B, C, and D are all arranged on A, which means that B, C, and D are all arranged on A. For a sentence with an omitted subject, the omitted subject is the subject of the previous sentence, that is, B is arranged on A, including C, which means that B is arranged on A and A includes C.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Combine the following Figures 1 to 4 Embodiments of the present invention are described.

[0037] The present embodiment relates to a mobile LED lamp, which can heat and insulate a battery pack 5 in a low-temperature environment by utilizing the heat generated by the lamp body 2 when the lamp body 2 is working, thereby increasing the working environment temperature of the battery pack 5 and reducing the endurance attenuation of the battery pack 5 when working in a low-temperature environment.

[0038] A mobile LED lamp, comprising:

[0039] Lamp housing 1, lamp body 2, first heat sink 3, second heat sink 4, battery pack 5, driving structure,

[0040] A lamp hole is provided on the upper side of the lamp housing 1, and a heat dissipation through hole 112 is provided on the side wall of the lamp housing 1;

[0041] The lamp body 2 is connected to the lamp housing 1 at the lamp hole;

[0042] The first heat sink 3 is fixedly connected to the lamp body 2;

[0043] The second heat sink 4 is located on a side of the first heat sink 3 facing away from the lamp body 2;

[0044] The battery pack 5 is located on a side of the second heat sink 4 facing away from the first heat sink 3 , and the battery pack 5 is fixedly connected to the lamp housing 1 ;

[0045] The driving structure is arranged on the lamp housing 1, and the driving structure drives the second heat sink 4 to move between a heat preservation position and a heat dissipation position. When the second heat sink 4 is at the heat preservation position, the heat dissipation through hole 112 is closed and abuts against the battery pack 5. When the second heat sink 4 is at the heat dissipation position, the heat dissipation through hole 112 is opened.

[0046] A mobile LED lamp of the present invention, when the driving structure drives the second heat sink 4 to move to the heat preservation position in a low temperature environment, the second heat sink 4 closes the heat dissipation through hole 112, so that the heat generated by the lamp body 2 can be conducted to the battery pack 5 through the first heat sink 3 and the second heat sink 4, so as to keep the battery pack 5 warm and make the battery pack 5 work under a higher temperature condition, thereby improving the performance of the battery pack 5 and improving the problem of significant performance degradation of the mobile LED in a low temperature environment.

[0047] In a normal temperature environment, for example, an environment where the air temperature is 15-30°C, the driving structure keeps the second heat sink 4 in the heat dissipation position. At this time, the mobile LED lamp is in a heat dissipation state. The heat generated by the lamp body 2 when working is accelerated to dissipate heat through the first heat sink 3, the second heat sink 4 and the heat dissipation through hole 112 to avoid excessive temperature of the LED. In a low temperature environment, for example, when the temperature is lower than 15°C, the driving structure moves the second heat sink 4 to the heat preservation position to close the heat dissipation through hole 112. At this time, the mobile LED lamp is in a heat preservation state. The heat generated by the lamp body 2 when working is conducted to the battery pack 5 through the first heat sink 3 and the second heat sink 4, and the battery pack 5 is kept warm, the temperature of the battery pack 5 is increased, the low temperature attenuation of the battery pack 5 is reduced, and the performance of the battery pack 5 in a low temperature external environment is improved. When the second heat sink 4 is in the heat preservation position, it is in contact with the battery pack 5, so that the second heat sink 4 and the battery pack 5 mainly transfer heat by heat conduction, thereby improving the heat transfer efficiency and the heat preservation efficiency of the battery pack 5.

[0048] In order to improve the heat transfer efficiency between the first heat sink 3 and the second heat sink 4, the first heat sink 3 is provided with a first heat conducting hole 31, and the second heat sink 4 is provided with a first heat conducting column 41, the first heat conducting column 41 extends into the first heat conducting hole 31, and the first heat conducting column 41 slides along the first heat conducting hole 31. The sliding of the first heat conducting column 41 in the first heat conducting hole 31 increases the contact area between the first heat sink 3 and the second heat sink 4, and improves the heat transfer efficiency between the first heat sink 3 and the second heat sink 4. The first heat conducting column 41 and the first heat conducting hole 31 can be configured as a gap connection or a transition connection as required. When the first heat conducting column 41 and the first heat conducting hole 31 are configured as a gap connection, the heat transfer between the first heat conducting column 41 and the first heat conducting hole 31 is mainly carried out through the air between the two, and the main heat transfer mode between the first heat conducting column 41 and the first heat conducting hole 31 is thermal radiation, and the heat transfer efficiency between the first heat conducting column 41 and the first heat conducting hole 31 is increased by thermal radiation. When the first heat-conducting column 41 and the first heat-conducting hole 31 are transitionally connected, the first heat-conducting column 41 and the first heat-conducting hole 31 mainly transfer heat through the abutment between the outer wall of the first heat-conducting column 41 and the inner wall of the first heat-conducting hole 31, that is, the first heat-conducting column 41 and the first heat-conducting hole 31 mainly transfer heat through heat conduction, and the heat transfer efficiency is relatively high.

[0049] Furthermore, heat transfer oil is also provided in the first heat conduction hole 31. When heat transfer oil is provided in the first heat conduction hole 31, the first heat conduction column 41 and the first heat conduction hole 31 are transitionally connected in this embodiment. By providing heat transfer oil in the first heat conduction hole 31, heat transfer is also performed between the end surface of the first heat conduction column 41 and the bottom surface of the first heat conduction hole 31 through the heat conduction oil, which can improve the heat transfer efficiency between the first heat sink 3 and the second heat sink 4 on the one hand, and can also lubricate the first heat conduction column 41 and the first heat conduction hole 31 on the other hand, thereby reducing sliding resistance.

[0050] In order to prevent the first heat sink 3 and the second heat sink 4 from coming out during the movement, which may cause leakage of the heat transfer oil, a first limiting groove 34 is provided in the first heat transfer hole 31, and a first limiting block 411 is provided on the first heat transfer column 41, and the first limiting block 411 is located in the first limiting groove 34. The heat transfer oil is injected into the first heat transfer hole 31 and is restricted from coming out by the first heat transfer column 41, so that the heat transfer oil is not easy to leak out of the first heat transfer hole 31. In this embodiment, the first limiting groove 34 is a groove formed between the protrusion 33 provided in the first heat transfer hole 31 and the first limiting block 411.

[0051] The first limit block 411 is also provided with a pressure relief hole 4111. The first limit block 411 is also provided with a pressure relief hole 4111. When the first limit block 411 moves in the first heat-conducting hole 31 and squeezes the space in the first heat-conducting hole 31, the heat-conducting oil can flow to the other side of the first limit block 411 through the pressure relief hole 4111, thereby reducing the pressure in the first heat-conducting hole 31. In addition, in order to further reduce the thrust pressure of the first limit block 411, a first column 32 is also provided in the first heat-conducting hole 31, and a first hole 412 is also provided on the first limit block 411. The first column 32 closes the first hole 412 and can slide along the first hole 412. Although the first limit block 411 is provided with a pressure relief hole 4111, when the first heat-conducting column 41 extends into the first heat-conducting hole 31, the volume change in the first heat-conducting hole 31 is still large. By disposing the first column 32 in the first heat conducting hole 31 , the volume in the first heat conducting hole 31 is reduced, thereby reducing the volume change when the first heat conducting column 41 extends into the first heat conducting hole 31 , reducing the compression of the heat conducting oil, and alleviating the propulsion resistance.

[0052] Specifically, the driving structure includes a spring 62, a push post and an adjustment screw 61. The spring 62 is arranged between the first heat sink 3 and the second heat sink 4 to drive the first heat sink 3 and the second heat sink 4 away from each other. The push post is fixedly connected to the second heat sink 4. The lamp housing 1 is provided with an adjustment screw hole. The adjustment screw 61 is threadedly connected to the adjustment screw hole. The tail of the adjustment screw 61 abuts against the push post. Under the elastic force of the spring 62, the second heat sink 4 causes the push post to press against the adjustment screw 61, so that when the adjustment screw 61 rotates, the position of the push post can be changed along with the adjustment screw 61. The adjustment screw 61 can drive the push rod in a stepless manner. When the push rod is driven by the adjusting screw 61, in addition to fixing the second heat sink 4 in the heat dissipation position and the heat preservation position, the degree to which the second heat sink 4 closes the heat dissipation through hole 112 can be adjusted according to actual needs, so as to balance the heat dissipation of the lamp body 2 and the heat preservation of the battery pack 5 according to the actual external ambient temperature, thereby expanding the environmental adaptability of the second heat sink 4.

[0053] The lamp housing 1 includes a lamp tube 11 and a lamp cover 12, the lamp body 2 is arranged at the front end of the lamp tube 11, the lamp cover 12 detachably closes the rear end of the lamp tube 11, the adjustment screw hole is arranged on the lamp cover 12, the lamp housing 1 is provided with a guide tube 121, and the push column slides along the guide tube 121. The lamp housing 1 is configured to include the structure of the lamp tube 11 and the lamp cover 12, which can simplify the structure of the lamp housing 1 and simplify the assembly of the lamp housing 1.

[0054] The mobile LED lamp further comprises a vapor chamber 7, the vapor chamber 7 is fixedly connected to the lamp tube 11, the battery pack 5 is welded to the vapor chamber 7, and the second heat sink 4 abuts against the vapor chamber 7 when in the heat preservation position. By configuring the vapor chamber 7, the second heat sink 4 conducts heat with the battery pack 5 through the vapor chamber 7, which can improve the heat transfer efficiency to the battery pack 5.

[0055] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A mobile LED lamp, characterized in that: include: A lamp housing (1), wherein a lamp hole is provided on the upper side of the lamp housing (1), and a heat dissipation through hole (112) is provided on the side wall of the lamp housing (1); A lamp body (2), the lamp body (2) being connected to the lamp housing (1) at the lamp hole; A first heat sink (3), wherein the first heat sink (3) is fixedly connected to the lamp body (2); a second heat sink (4), the second heat sink (4) being located on a side of the first heat sink (3) facing away from the lamp body (2); a battery pack (5), the battery pack (5) being located on a side of the second heat sink (4) facing away from the first heat sink (3), the battery pack (5) being fixedly connected to the lamp housing (1); A driving structure, the driving structure being arranged on the lamp housing (1), the driving structure driving the second heat sink (4) to move between a heat preservation position and a heat dissipation position, the second heat sink (4) closing the heat dissipation through hole (112) and abutting against the battery pack (5) when in the heat preservation position, and opening the heat dissipation through hole (112) when in the heat dissipation position.

2. A mobile LED lamp according to claim 1, characterized in that: The first heat-conducting hole (31) is provided on the first heat-conducting body (3), and the second heat-conducting body (4) is provided with a first heat-conducting column (41), the first heat-conducting column (41) extends into the first heat-conducting hole (31), and the first heat-conducting column (41) slides along the first heat-conducting hole (31).

3. The mobile LED lamp according to claim 2, characterized in that: Heat transfer oil is also provided in the first heat transfer hole (31).

4. The mobile LED lamp according to claim 3, characterized in that: A first limiting groove (34) is provided in the first heat conducting hole (31), a first limiting block (411) is provided on the first heat conducting column (41), and the first limiting block (411) is located in the first limiting groove (34).

5. The mobile LED lamp according to claim 4, characterized in that: The first limiting block (411) is also provided with a pressure relief through hole (4111).

6. The mobile LED lamp according to claim 1, characterized in that: The driving structure comprises a spring (62), a push pin and an adjusting screw (61); the spring (62) is arranged between the first heat sink (3) and the second heat sink (4) to drive the first heat sink (3) and the second heat sink (4) to move away from each other; the push pin is fixedly connected to the second heat sink (4); an adjusting screw hole is provided on the lamp housing (1); the adjusting screw (61) is threadedly connected to the adjusting screw hole; and the tail of the adjusting screw (61) abuts against the push pin.

7. The mobile LED lamp according to claim 6, characterized in that: The lamp housing (1) comprises a lamp tube (11) and a lamp cover (12); the lamp body (2) is arranged at the front end of the lamp tube (11); the lamp cover (12) detachably closes the rear end of the lamp tube (11); the adjustment screw hole is arranged on the lamp cover (12); a guide tube (121) is arranged on the lamp housing (1); and the push column slides along the guide tube (121).

8. The mobile LED lamp according to claim 7, characterized in that: The mobile LED lamp further comprises a heat spreader (7), the heat spreader (7) is fixedly connected to the lamp tube (11), the battery pack (5) is welded to the heat spreader (7), and the second heat sink (4) abuts against the heat spreader (7) when in the heat preservation position.

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