A lighting fixture with an electric control box

Abstract

The present invention provides a lamp with an electronic control box, which includes an electronic control box, a lamp body and a support base; the electronic control box includes a heat dissipation box and electrical components; the heat dissipation box includes a housing extending in the horizontal direction and having an accommodation space inside, an intake fan near the front side of the housing for sucking gas into the box, an exhaust fan near the front side of the housing and separated from the intake fan by a certain distance for discharging the gas in the box outside the housing, and a protection unit, and the protection unit includes a support frame and a protective cover; the support frame is arranged outside the front side of the housing, and a through hole communicating the accommodation space and the outside and near the intake fan and / or the exhaust fan is provided in the middle of the support frame; the protective cover is a semi-closed box body with an opening at one end, and the protective cover is covered on the support frame to form a gas channel communicating with the through hole and the housing between the protective cover and the support frame. Compared with the prior art, the lamp with an electronic control box of the present invention not only realizes the heat dissipation in the electronic control box, but also can reduce the entry of foreign matters such as rainwater and dust into the box.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation, and particularly to a lamp with an electric control box. Background Art

[0002] Lamps are indispensable lighting devices in modern life. In particular, street lamps outdoors can provide illumination for roads in the dark and reduce the occurrence of nighttime accidents. With the development of photovoltaic technology, solar-powered street lamps have emerged in recent years. They can convert solar energy during the day into electrical energy and store it in a battery for use in lighting the street lamp at night.

[0003] However, since street lamps are installed outdoors, their batteries or electronic components are also set outdoors to withstand sunlight and rain. Therefore, to avoid damage caused by rainwater, etc., a protective case is generally provided outside the electronic products such as the battery of the street lamp. However, electronic products such as batteries are prone to heat generation during use, and the heat of the electronic products wrapped in the protective case is not easily dissipated to the outside, resulting in heat accumulation inside the protective case and frequent failures of the electronic products. Summary of the Invention

[0004] Based on this, the object of the present invention is to overcome the defects or deficiencies of the prior art and provide a lamp with an electric control box.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A lamp with an electric control box includes an electric control box, a lamp body, and a support base; the support base is used to support the electric control box and the lamp body; the electric control box includes a heat dissipation box and an electrical component, the electrical component is electrically connected to the lamp body, and the heat dissipation box includes:

[0007] A housing that extends in the horizontal direction and has an accommodation space inside for accommodating the electrical component;

[0008] An intake fan, which is close to the front side of the housing and is used to suck external gas into the accommodation space;

[0009] An exhaust fan, which is close to the front side of the housing and is separated from the intake fan by a certain distance in the horizontal direction, and is used to discharge the gas in the accommodation space out of the housing;

[0010] A protection unit, including a support frame and a protection cover; the support frame is arranged outside the front side of the housing, and a through hole that communicates the accommodation space and the outside and is close to the intake fan and / or the exhaust fan is provided in the middle of the support frame; the protection cover is a semi-closed box body with an opening at one end, the protection cover is covered on the support frame, and at least a part of its inner wall is separated from the support frame to form a gas channel that communicates with the through hole and the housing.

[0011] Compared with the prior art, in the lamp with an electronic control box according to the present invention, by providing a double fan on the electronic control box, the air flow can flow through the entire interior of the electronic control box and take away the heat of the electrical components. At the same time, its protection unit can reduce the entry of foreign matters such as rainwater and dust into the box, reducing the damage of electronic components.

[0012] In some embodiments, the protection unit further includes a filter screen, and the filter screen is covered on the through hole and close to the protective cover to prevent foreign matters from entering the box through the through hole.

[0013] In some embodiments, the protection unit further includes a first seal and a second seal; the first seal seals the gap between the support frame and the front side of the housing; the second seal seals the gap between the filter screen and the support frame, further improving the sealing performance of the housing.

[0014] In some embodiments, the front side of the housing extends in the vertical direction; a drain hole is opened at the bottom of the protective cover and faces downward, and the drain hole is close to the inner side wall of the protective cover facing the through hole to prevent rainwater from accumulating in the protective cover.

[0015] In some embodiments, a drain hole is opened at the bottom of the protective cover and close to the inner side wall of the protective cover facing the through hole, and the housing further includes a rear side opposite to the front side and extending in the vertical direction; the front side is inclined relative to the vertical direction, and the distance from the upper side of the front side to the rear side is less than the distance from the lower side of the front side to the rear side, so that the drain hole inclines towards the front side, and rainwater is not easy to enter the box through the drain hole, and the rainwater entering the protective cover is easy to be discharged to the outside.

[0016] In some embodiments, the inner top wall of the housing is provided with an installation bump protruding into the accommodation space, and the electrical component is installed on the installation bump and separated from the inner bottom wall of the housing by a certain distance to prevent the rainwater accumulated at the bottom of the housing from contacting the electrical component.

[0017] In some embodiments, a drain groove extending from the top to the bottom is opened on the support frame to guide the rainwater entering the box from the top to the drain hole.

[0018] In some embodiments, the electrical component includes a substrate and a battery which are stacked and electrically connected to each other to save the space occupied by the electrical component.

[0019] In some embodiments, a solar panel is further included, and the electronic control box, the lamp body and the support base are installed below the solar panel, and the solar panel is electrically connected to the substrate to achieve the purpose of energy conservation and environmental protection.

[0020] In some embodiments, the electric control box is located between the lamp body and the support base, and the front side of the housing faces the support base to reduce the blockage of light.

[0021] For better understanding and implementation, the present invention will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the lamp with an electric control box in the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the electric control box in the present invention;

[0024] Figure 3 It is an exploded view of the electric control box in the present invention;

[0025] Figure 4 It is a front view of the electric control box in the present invention;

[0026] Figure 5 It is along Figure 4 a cross-sectional view in the direction of line Y-Y;

[0027] Figure 6 It is an exploded view of the protection unit in the present invention;

[0028] Figure 7 It is for Figure 5 a partial enlarged view of part A in

[0029] Figure 8 It is along Figure 4 a cross-sectional view in the direction of line Z-Z.

[0030] Figure 9 It is a left view of the electric control box in another embodiment;

[0031] Figure 10 It is a schematic cross-sectional view of the electric control box when projected in the vertical direction in another embodiment.

[0032] Description of the reference numerals: 1. Electric control box; 10. Electrical components; 11. Substrate; 12. Battery; 20. Heat dissipation box; 21. Housing; 211. Front side; 212. Rear side; 213. Upper side; 214. Lower side; 215. Mounting hole; 216. Mounting convex block; 217. Mounting part; 22. End cover; 23. Inlet air fan; 24. Outlet air fan; 25. Protection unit; 251. Support frame; 2511. Through hole; 2512. Convex block; 2513. Drainage groove; 252. Protection cover; 2521. Drainage hole; 253. Filter screen; 254. First seal; 255. Second seal; 2. Lamp body; 3. Solar panel; 4. Support base. Detailed Description of the Embodiments

[0033] The applicant of this case studied the problems of existing lamps, especially the prone-to-failure problems of outdoor lamps, and found that: there are conflicting requirements in the structural design of outdoor lamps. Electronic components such as batteries need to be tightly wrapped by a housing to prevent contact with foreign objects such as rainwater or dust, and at the same time, the environment where they are located requires ventilation to dissipate heat as soon as possible. To solve this contradiction, the applicant of this case provides a street lamp with an electric control box. The electric control box can make the air flow fully exchange heat in the housing through two fans to take away heat, and a protection unit with a unique structure is provided on the fan upper cover, which can reduce the entry of foreign objects such as rainwater and dust into the housing, achieving the purpose of neither affecting heat dissipation nor protecting electronic components. Its technical solution will be described in detail in the following embodiments.

[0034] Please refer to Figure 1 , the street lamp with an electric control box provided by the present invention includes an electric control box 1, a lamp body 2, a solar panel 3 and a support base 4. The electric control box 1, the lamp body 2 and the support base 4 are all installed below the solar panel 3. The support base 4 is located on one side away from the lamp body 2, and the electric control box 1 is located between the support base 4 and the lamp body 2. The support base 4 is used to connect with a support member such as a lamp post, and the entire lamp with an electric control box can be set at a high place.

[0035] Please refer to Figures 2 to 5 , the electric control box 1 includes an electrical component 10 and a heat dissipation box 20.

[0036] The electrical component 10 includes a substrate 11 and a battery 12. The substrate 11 and the battery 12 are stacked and electrically connected. The lamp body 2 and the solar panel 3 are respectively electrically connected to the substrate 11. The solar panel 3 converts light energy into electrical energy through the substrate 11 and supplies power to the lamp body 2, and the excess electrical energy is stored in the battery 12.

[0037] The heat dissipation box 20 includes a housing 21, an end cover 22, an intake fan 23, an exhaust fan 24, and a protection unit 25. In this embodiment, the housing 21 extends in the horizontal direction, is hollow inside, and has openings provided at opposite ends in the horizontal direction. The end cover 22 covers the openings at both ends of the housing 21, thereby forming an accommodation space, and the electrical component 10 is installed in the accommodation space. The front side surface 211 of the housing 21 faces the support base 4, and two mounting holes 215 are provided on the front side surface 211 of the housing 21. The two mounting holes 215 are arranged in the left-right direction and are separated by a certain distance. The intake fan 23 and the exhaust fan 24 are respectively close to the two mounting holes 215 and are electrically connected to the substrate 11, so as to blow external air into the accommodation space and extract the air in the accommodation space from the accommodation space. Among them, the intake fan 23 and / or the exhaust fan 24 can be located inside the front side surface 211, or pass through the mounting holes 215 so that at least a part of them is located outside the front side surface 211. Further, a mounting portion 216 is provided on the inner top wall of the housing 21. The mounting portion 213 protrudes into the accommodation space. The electrical component 10 is fixed to the mounting portion 213 by screws or the like and is separated from the inner bottom wall of the housing 21 by a certain distance to prevent the influence of water accumulation inside the housing 21 on the electrical component 10. In this embodiment, the housing 21 includes a front side surface 211 and a rear side surface 212 that extend in the up-down direction and are oppositely arranged, an upper side surface 213 and a lower side surface 214 that are arranged in the up-down direction and are respectively connected between the front side surface 213 and the rear side surface 212. The lamp body 2 is located on one side close to the rear side surface 214.

[0038] Please refer to Figures 5 to 8, the protection unit 25 is respectively disposed outside the two mounting holes 215, and includes a support frame 251, a protective cover 252, a filter screen 253, a first seal 254, and a second seal 255. The support frame 251 is disposed outside the front side surface 211 of the housing 21, and a through hole 2511 communicating with the mounting hole 215 is formed in the middle thereof. In one embodiment, the mounting hole 215 and the through hole 2511 are coaxial, and the diameter of the through hole 2511 is greater than or equal to that of the mounting hole 215, and the through hole 2511 surrounds the mounting hole 215. The intake fan 23 or the exhaust fan 24 is located in the through hole 2511. In this embodiment, along the projection of the axis of the through hole 2511, the outer contour of the support frame 251 is a rectangle surrounded by an upper side surface, a lower side surface, a left side surface, and a right side surface, and the through hole 2511 is formed in the middle thereof. The filter screen 253 is covered on the side of the through hole 2511 facing away from the housing 21 to prevent foreign objects from entering the housing 21 through the through hole 2511. The protective cover 252 is a semi-closed box body with an opening at one end, and its opening faces the support frame 251 and is covered on the side of the support frame 251 facing away from the housing 21, and is fixed to the support frame 251 by screws or the like, and is separated from the side surface of the support frame 251 by a certain distance. The filter screen 253 is located between the support frame 251 and the protective cover 252. In this embodiment, the protective cover 252 surrounds the outside of the upper side surface, the lower side surface, the left side surface, and the right side surface of the support frame 251 and is separated by a certain distance; along the projection of the axis of the through hole 2511, convex blocks 2512 protruding toward the protective cover 252 are provided at the four corners of the support frame 251, and the inner side wall of the protective cover 252 facing the support frame 251 abuts against the convex blocks 2512, so that the inner side wall of the protective cover 252 is separated from the through hole 2511 by a certain distance, thereby forming a gas passage communicating with the through hole 2511. The first seal 254 and the second seal 255 are sealing rings made of rubber or the like. The first seal 254 is disposed between the support frame 251 and the housing 21 to seal the gap between the support frame 251 and the housing 21. The second seal 255 is disposed between the filter screen 253 and the support frame 251 and surrounds the through hole 2511 to seal the gap between the filter screen 253 and the support frame 251.

[0039] In one embodiment, a plurality of drain holes 2521 are provided at the bottom of the protective cover 252. Rainwater entering the protective cover 252 can flow out through the drain holes 2521, preventing rainwater from accumulating inside the protective cover 252. In this embodiment, the drain holes 2521 are opened on the bottom wall surface of the protective cover 252 facing the lower side surface of the support frame 251 and away from the support frame 251, so that rainwater can quickly leave the protective cover 252. Further, the inner bottom surface of the protective cover 252 is inclined towards the direction of the drain holes 2521 to accelerate the outflow of rainwater.

[0040] In one embodiment, drainage grooves 2513 are provided on the upper side surface, left side surface, and right side surface of the support frame 251 and are connected. Through the drainage grooves 2513 extending from the top to the bottom of the support frame 251, part of the rainwater entering the protective cover 252 from the top can be guided to the drain holes 2521.

[0041] In one embodiment, as Figure 9 shown, the front side surface 211 of the housing 21 is inclined relative to the vertical direction, such that the distance from the side where the front side surface 211 meets the lower side surface 214 to the rear side surface 212 is less than the distance from the side where the front side surface 211 meets the upper side surface 213 to the rear side surface 212. The protection unit 25 is accordingly inclined. The outer side surface above the protective cover 252 inclines away from the housing 21, and the outer side surface below inclines towards the housing 21. The drain holes 2521 face the housing 21. When rain hits above the protective cover 252, it is not easy to enter the protective cover 252, while the rainwater inside the protective cover 252 is easy to flow out of the protective cover 252.

[0042] In one embodiment, as Figure 10 shown, in the vertical projection, two relatively inclined mounting portions 216 are provided on the front side surface 211 of the housing 21. The two mounting portions 216 respectively extend from the middle to the end caps 22 on the left and right sides, and the distance to the rear side surface 212 gradually increases. The intake fan 23, the exhaust fan 24, the protection unit 25, and the two mounting holes 215 are respectively provided on the two mounting portions 216, such that the intake fan 23 and the exhaust fan 24 are inclined to each other. Most of the air flow drawn in by the intake fan 23 flows towards one end cap 22, then rebounds and flows towards the other end cap 22, and then rebounds and flows towards the exhaust fan 24, thereby prolonging the residence time of the gas in the accommodation space and making the heat exchange more sufficient.

[0043] Please refer to Figure 7 and Figure 8, as shown by the arrows in the figure, during operation, the intake fan 23 creates a negative air pressure. Gas flows into the protective cover 252 from the opening of the protective cover covering the intake fan 23 along the upper, lower, left, and right sides of the support frame 251, reaches the through hole 2511, then flows into the accommodation space, and flows in the direction of the exhaust fan 24 under the action of the exhaust fan 24. Under the pushing action of the exhaust fan 24, it flows out of the accommodation space from the through hole 2511 of the protective cover 252 covering the exhaust fan 24, and then flows through the protective cover 252 and the support frame 251 covering the exhaust fan 24 until it flows out of the protective cover 252 into the external space, thereby taking away the heat in the accommodation space. During this process, since the intake fan 23 and the exhaust fan 24 are located on the same side of the housing 21, the inflowing gas needs to flow through the entire interior of the housing 21 to flow out, so that it can fully contact the substrate 11 and the battery 12 in the accommodation space and take away their heat, achieving a good heat dissipation effect. The protective cover 252 and the support frame 251 surround the outside of the intake fan 23 and / or the exhaust fan 24, and the gas needs to pass through a circuitous gas passage to enter the accommodation space, thereby reducing the entry of rainwater, dust, etc. into the interior of the accommodation space.

[0044] In addition, the lamp in the present invention is powered by solar energy, but according to needs, the lamp of the present invention can also be powered by other DC or AC external power sources. Other heating elements can also be used to protect and dissipate heat in the heat dissipation box 20.

[0045] Compared with the prior art, the lamp with an electronic control box of the present invention has the following advantages:

[0046] 1. It can not only dissipate heat inside the electronic control box but also reduce the entry of foreign matters such as rainwater and dust into the box;

[0047] 2. It can quickly drain the rainwater accumulated in the protection unit;

[0048] 3. It has good airtightness;

[0049] 4. The air flow can enter the box from multiple directions, increasing the air flow rate inside the box.

[0050] 5. The electrical components inside the box are not easily in contact with foreign matters such as rainwater.

[0051] 6. It has a compact structure, occupies less space, and has less light blockage.

[0052] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of this application. The singular forms "a", "the", and "said" used in the embodiments of this application and the claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that unless otherwise stated, "a plurality" means two or more; the terms "first", "second", "third", etc. are only used for distinction and not for describing a specific order or sequence, nor can they be understood as indicating or implying relative importance. The term "and / or" used herein means any or all possible combinations of one or more of the associated listed items. When the above description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of this application, for those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] The above-described embodiments merely represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A lamp with an electric control box, comprising an electric control box, a lamp body and a support base; the support base is used to support the electric control box and the lamp body; the electric control box comprises a heat dissipation box and an electrical component, the electrical component is electrically connected to the lamp body, characterized in that: The heat dissipation box comprises: A housing extending in a horizontal direction and having an accommodation space therein for accommodating the electrical components, wherein two mounting holes separated by a distance in a horizontal direction are formed on a front side of the housing; an air intake fan, located near one of the mounting holes, for sucking external air into the accommodation space; an air outlet fan, close to another mounting hole and separated from the air inlet fan by a certain distance in the horizontal direction, for discharging the gas in the accommodation space out of the housing; A protection unit comprises a support frame and a protection cover; the support frame is arranged on the outer side of the front side and covers the two mounting holes respectively, a through hole connecting the accommodating space and the outside and close to the air inlet fan and the air outlet fan is provided in the middle of the support frame, and the through hole is coaxial with the mounting hole; the protection cover is a semi-enclosed box body with an opening at one end, the protection cover opening faces the support frame and covers the support frame respectively, and at least a part of its inner wall is separated from the support frame to form a gas channel connected with the through hole and the shell.

2. The lamp with an electric control box according to claim 1, characterized in that: The protection unit further comprises a filter screen, which covers the through hole and is close to the protection cover.

3. The lamp with an electric control box according to claim 2, characterized in that: The protection unit further includes a first seal and a second seal; the first seal seals a gap between the support frame and the front side of the shell; the second seal seals a gap between the filter screen and the support frame.

4. The lamp with an electric control box according to claim 1, characterized in that: The front side surface of the shell extends in a vertical direction; the bottom of the protective cover is provided with a drainage hole facing downward, and the drainage hole is close to the inner side wall of the protective cover facing the through hole.

5. The lamp with an electric control box according to claim 1, characterized in that: A drainage hole is provided at the bottom of the protective cover, close to the inner side wall of the protective cover facing the through hole, and the shell also includes a rear side surface opposite to the front side surface and extending in the vertical direction; the front side surface is inclined relative to the vertical direction, and the distance from the upper side of the front side surface to the rear side surface is smaller than the distance from the lower side of the front side surface to the rear side surface, so that the drainage hole is inclined toward the front side surface.

6. The lamp with an electric control box according to claim 5, characterized in that: The inner top wall of the shell is provided with a mounting protrusion protruding toward the accommodating space, and the electrical component is mounted on the mounting protrusion and is separated from the inner bottom wall of the shell by a distance.

7. The lamp with an electric control box according to claim 4 or 5, characterized in that: The support frame is provided with a drainage groove extending from the top to the bottom.

8. The lamp with an electric control box according to claim 4 or 5, characterized in that: The electrical component comprises a substrate and a battery which are stacked and electrically connected to each other.

9. The lamp with an electric control box according to claim 8, characterized in that: It also includes a solar panel. The electric control box, the lamp body and the support seat are installed below the solar panel. The solar panel is electrically connected to the substrate.

10. The lamp with an electric control box according to claim 9, characterized in that: The electric control box is located between the lamp body and the support base, and the front side of the shell faces the support base.

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