Lamp having electric control box

Abstract

Provided in the present invention is a lamp having an electric control box, the lamp comprising an electric control box, a lamp body and a support base. The electric control box comprises a heat dissipation box and an electrical assembly. The heat dissipation box comprises a housing extending in the horizontal direction and internally provided with an accommodating space, an air intake fan which is close to the front side face of the housing and draws air into the box, an air exhaust fan which is close to the front side face of the housing, is spaced from the air intake fan by a certain distance, and discharges air in the box out of the housing, and a protective unit. The protective unit comprises a support frame and a protective cover; the support frame is arranged on the outer side of the front side face of the housing, and the middle of the support frame is provided with a through hole which communicates the accommodating space with the outside and is close to the air intake fan and / or the air exhaust fan; the protective cover is a semi-closed box body provided with an opening at one end, the protective cover covering the support frame, and an air passage communicated with the through hole and the housing being formed between the protective cover and the support frame. Compared with the prior art, the lamp having an electric control box of the present invention not only achieves heat dissipation for the inside of the electric control box, but also prevents foreign matters such as rainwater and dust from entering the box.

Description

A lamp with an electrical control box Technical Field

[0001] This invention relates to the field of heat dissipation technology, and in particular to a lamp with an electrical control box. Background Technology

[0002] Lighting fixtures are indispensable lighting equipment in modern life, especially outdoor streetlights, which provide illumination for roads in the dark and reduce nighttime accidents. With the development of photovoltaic technology, solar-powered streetlights have also emerged in recent years. These streetlights convert solar energy generated during the day into electrical energy and store it in batteries for nighttime lighting.

[0003] However, since streetlights are installed outdoors, their batteries and electronic components are also exposed to sun and rain. Therefore, to prevent damage from rain, streetlight batteries and other electronic components are generally encased in protective shells. However, batteries and other electronic components tend to generate heat during use, and the heat trapped inside the protective shell cannot dissipate easily, leading to heat buildup and frequent malfunctions. Summary of the Invention

[0004] Therefore, the purpose of this invention is to overcome the defects or deficiencies of the prior art and provide a lamp with an electrical control box.

[0005] The technical solution adopted in this invention is as follows:

[0006] A lighting fixture with an electrical control box includes the electrical control box, a lamp body, and a support base; the support base supports the electrical control box and the lamp body; the electrical control box includes a heat sink and an electrical assembly, the electrical assembly being electrically connected to the lamp body, and the heat sink comprising:

[0007] The housing extends horizontally and has an internal receiving space for accommodating the electrical components;

[0008] An intake fan, located near the front side of the housing, is used to draw external air into the containment space;

[0009] An exhaust fan is located near 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 exhaust the gas in the containment space outside the housing.

[0010] The protective unit includes a support frame and a protective cover; the support frame is disposed on the outer side of the front side of the housing, and the middle of the support frame is provided with a through hole that connects the receiving space and the outside and is close to the air intake fan and / or the air outlet fan; the protective cover is a semi-closed box with an opening at one end, the protective cover covers the support frame, and at least a portion of its inner wall is separated from the support frame to form a gas passage that communicates with the through hole and the housing.

[0011] Compared with the prior art, the lamp with the control box of the present invention has a dual fan installed on the control box, which allows airflow to flow through the entire interior of the control box and carry away the heat of the electrical components. At the same time, its protection unit can reduce the entry of rainwater, dust and other foreign objects into the box, and reduce the damage to electronic components.

[0012] In some embodiments, the protective unit further includes a filter screen that covers the through-hole and is close to the protective cover to prevent foreign objects 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 and the support frame, further improving the sealing performance of the housing.

[0014] In some embodiments, the front side of the housing extends vertically; a downward-facing drainage hole is provided at the bottom of the protective cover, the drainage hole being close to the inner sidewall of the protective cover facing the through hole, to prevent rainwater from accumulating inside the protective cover.

[0015] In some embodiments, a drainage hole is provided at the bottom of the protective cover near the inner sidewall of the protective cover facing the through hole. The housing also includes a rear side opposite to the front side and extending in a 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 drainage hole is inclined to the front side, making it difficult for rainwater to enter the box from the drainage hole, while rainwater that enters the protective cover can be easily discharged to the outside.

[0016] In some embodiments, the inner top wall of the housing is provided with a mounting protrusion protruding into the receiving space, the electrical component is mounted on the mounting protrusion and separated from the inner bottom wall of the housing by a distance to prevent rainwater accumulating at the bottom of the housing from contacting the electrical component.

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

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

[0019] In some embodiments, a solar panel is also included. The electrical control box, the lamp body, and the support base are installed below the solar panel. The solar panel is electrically connected to the substrate to achieve energy saving and environmental protection.

[0020] In some embodiments, the 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 obstruction of light.

[0021] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the overall structure of the lamp with an electrical control box in this utility model;

[0023] Figure 2 is a schematic diagram of the overall structure of the electrical control box in this utility model;

[0024] Figure 3 is an exploded view of the electrical control box in this utility model;

[0025] Figure 4 is a front view of the electrical control box in this utility model;

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

[0027] Figure 6 is an exploded view of the protection unit in this utility model;

[0028] Figure 7 is a magnified view of part A in Figure 5;

[0029] Figure 8 is a cross-sectional view along line ZZ in Figure 4.

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

[0031] Figure 10 is a cross-sectional view of the electrical control box when projected vertically in another embodiment.

[0032] Explanation of reference numerals in the attached drawings: 1. Electrical control box; 10. Electrical component; 11. Base plate; 12. Battery; 20. Heat sink box; 21. Housing; 211. Front side; 212. Rear side; 213. Upper side; 214. Lower side; 215. Mounting hole; 216. Mounting protrusion; 217. Mounting part; 22. End cover; 23. Inlet fan; 24. Outlet fan; 25. Protection unit; 251. Support frame; 2511. Through hole; 2512. Protrusion; 2513. Drainage groove; 252. Protective cover; 2521. Drainage hole; 253. Filter screen; 254. First seal; 255. Second seal; 2. Lamp body; 3. Solar panel; 4. Support base. Detailed Implementation

[0033] The applicant in this case has researched the problem of frequent malfunctions in existing lighting fixtures, particularly outdoor lighting fixtures. The research revealed a conflicting requirement in the structural design of outdoor lighting fixtures: while electronic components such as batteries require tightly sealed enclosures to prevent contact with rainwater or dust, the environment also needs to be well-ventilated for rapid heat dissipation. To resolve this contradiction, the applicant provides a street light with an electrical control box. This control box utilizes dual fans to facilitate efficient heat exchange within the enclosure, removing heat. Furthermore, the fan covers feature a uniquely structured protective unit that reduces the entry of rainwater, dust, and other foreign objects into the enclosure, achieving the goal of both unimpeded heat dissipation and protection of electronic components. The technical solution is described in detail in the following embodiments.

[0034] Referring to Figure 1, the street light with an electrical control box provided by the present invention includes an electrical control box 1, a lamp body 2, a solar panel 3, and a support base 4. The electrical 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 the side away from the lamp body 2, and the electrical control box 1 is located between the support base 4 and the lamp body 2. The support base 4 is used to connect to a support member such as a lamp pole, allowing the entire street light fixture with the electrical control box to be installed at a high position.

[0035] Please refer to Figures 2 to 5. The electrical control box 1 includes an electrical component 10 and a heat sink 20.

[0036] The electrical component 10 includes a substrate 11 and a battery 12, which are stacked and electrically connected. The lamp body 2 and the solar panel 3 are 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. Excess electrical energy is stored in the battery 12.

[0037] The heat dissipation box 20 includes a housing 21, an end cap 22, an intake fan 23, an exhaust fan 24, and a protection unit 25. In this embodiment, the housing 21 extends horizontally, is hollow inside, and has openings at opposite ends in the horizontal direction. The end cap 22 covers the openings at both ends of the housing 21, thereby forming a receiving space, in which the electrical component 10 is installed. The front side 211 of the housing 21 faces the support base 4, and two mounting holes 215 are provided on the front side 211. The two mounting holes 215 are arranged in the left-right direction and separated by a distance. The intake fan 23 and the exhaust fan 24 are respectively close to the two mounting holes 215 and electrically connected to the substrate 11, so that external air is blown into the receiving space and air in the receiving space is extracted from the receiving space. The intake fan 23 and / or the exhaust fan 24 may be located inside the front side 211, or pass through the mounting holes 215, so that at least a part of it is located outside the front side 211. Furthermore, the inner top wall of the housing 21 is provided with a mounting portion 216, the mounting portion 213 protruding into the accommodating space, and the electrical component 10 is fixed to the mounting portion 213 by screws or the like and separated from the inner bottom wall of the housing 21 by a certain distance to prevent water accumulation inside the housing 21 from affecting the electrical component 10. In this embodiment, the housing 21 includes a front side 211 and a rear side 212 extending vertically and arranged opposite to each other, and an upper side 213 and a lower side 214 arranged vertically and respectively connecting the front side 213 and the rear side 212, and the lamp body 2 is located on the side closer to the rear side 214.

[0038] Referring to Figures 5 to 8, the protective unit 25 covers the outer sides of 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 211 of the housing 21, and has a through hole 2511 communicating with the mounting holes 215 in its central part. 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 inside the through hole 2511. In this embodiment, projected along the axis of the through hole 2511, the outer contour of the support frame 251 is a rectangle formed by the upper side, lower side, left side, and right side, and the through hole 2511 is located in its central part. The filter screen 253 covers 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 with an opening at one end, which faces the support frame 251 and covers the side of the support frame 251 facing away from the housing 21. It is fixed to the support frame 251 with screws or the like and is separated from the side 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 outer sides of the upper, lower, left, and right sides of the support frame 251 and is spaced a certain distance apart. Projecting along the axis of the through hole 2511, the support frame 251 has protrusions 2512 at its four corners protruding towards the protective cover 252. The protective cover 252 abuts against the protrusions 2512 on the inner wall of the support frame 251, thus separating the inner wall of the protective cover 252 from the through hole 2511 by one end, thereby forming a gas passage connecting the through hole 2511. The first sealing member 254 and the second sealing member 255 are sealing rings made of rubber or the like. The first sealing member 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, the bottom of the protective cover 252 is provided with a plurality of drainage holes 2521, allowing rainwater entering the protective cover 252 to exit through the drainage holes 2521, preventing rainwater from accumulating inside the protective cover 252. In this embodiment, the drainage holes 2521 are located on the bottom wall surface of the protective cover 252 facing the lower side of the support frame 251 and away from the support frame 251, allowing rainwater to quickly leave the protective cover 252. Furthermore, the inner bottom surface of the protective cover 252 is inclined towards the drainage holes 2521 to accelerate the outflow of rainwater.

[0040] In one embodiment, the support frame 251 has a communicating drainage groove 2513 on its upper side, left side and right side. Through the drainage groove 2513 extending from the top to the bottom of the support frame 251, some of the rainwater that enters the protective cover 252 from the top can be directed to the drainage hole 2521.

[0041] In one embodiment, as shown in FIG9, the front side 211 of the housing 21 is inclined relative to the vertical direction, such that the distance from the side where the front side 211 and the lower side 214 meet to the rear side 212 is less than the distance from the side where the front side 211 and the upper side 213 meet to the rear side 212. The protective unit 25 is thus inclined, with the upper outer side of the protective cover 252 inclined away from the housing 21 and the lower outer side inclined towards the housing 21. The drainage hole 2521 faces the housing 21, so that rainwater does not easily enter the protective cover 252 when it hits the upper part of the protective cover 252, while rainwater inside the protective cover 252 easily flows out of the protective cover 252.

[0042] In one embodiment, as shown in FIG10, projected vertically, the front side 211 of the housing 21 is provided with two relatively inclined mounting portions 216. The two mounting portions 216 extend from the middle to the end caps 22 on the left and right sides, respectively, and the distance to the rear side 212 gradually increases. The air intake fan 23, the air outlet fan 24, the protective unit 25, and the two mounting holes 215 are respectively opened on the two mounting portions 216, so that the air intake fan 23 and the air outlet fan 24 are inclined to each other. Most of the airflow drawn in by the air intake fan 23 flows to one end cap 22 and then bounces back to the other end cap 22, and then bounces back to the air outlet fan 24, thereby prolonging the time that the gas stays in the containment space and making the heat exchange more complete.

[0043] Referring to Figures 7 and 8, the airflow is as shown by the arrows. 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 252 covering the intake fan 23, along the upper, lower, left, and right sides of the support frame 251, reaching the through hole 2511, and then flowing into the receiving space. Under the action of the exhaust fan 24, the gas flows towards the exhaust fan 24. Driven by the exhaust fan 24, the gas flows out of the receiving space from the through hole 2511 of the protective cover 252 covering the exhaust fan 24, and then flows from the protective cover 252 covering the exhaust fan 24 and the support frame 251 until it flows from the protective cover 252 into the external space, thereby carrying away the heat in the receiving 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 incoming gas needs to flow through the entire interior of the housing 21 before it can flow out, thereby fully contacting the substrate 11 and battery 12 in the housing space and carrying away their heat, achieving a good heat dissipation effect. Meanwhile, 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 detour gas channel to enter the housing space, thereby reducing the entry of rainwater, dust, etc. into the interior of the housing space.

[0044] Furthermore, the lamp in this invention is powered by solar energy; however, it can also be powered by other external DC or AC power sources as needed. The heat dissipation box 20 can also contain other heat-generating elements for protection and heat dissipation.

[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 both dissipate heat from the inside of the electrical control box and reduce the entry of rainwater, dust and other foreign objects into the box;

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

[0048] 3. Good sealing performance;

[0049] 4. Airflow can enter the box from multiple directions, increasing the air volume inside the box.

[0050] 5. The electrical components inside the box are not easily exposed to rainwater or other foreign objects.

[0051] 6. It has a compact structure, occupies little space, and has minimal light obstruction.

[0052] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments and claims of this application 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 used only to distinguish and not to describe a particular order or sequence, nor should they be construed as indicating or implying relative importance. The term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items. When the above description relates to drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of this application, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0053] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A lamp with an electric control box, comprising an electric control box, a lamp body and a support seat; the support seat is used for supporting the electric control box and the lamp body; the electric control box comprises a heat dissipation box and an electric appliance assembly, and the electric appliance assembly is electrically connected with the lamp body, characterized in that, The heat sink includes: The housing extends horizontally and has an internal receiving space for accommodating the electrical components; An intake fan, located near the front side of the housing, is used to draw external air into the containment space; An exhaust fan is located near 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 exhaust the gas in the containment space outside the housing. The protective unit includes a support frame and a protective cover; the support frame is disposed on the outer side of the front side, and the middle of the support frame has a through hole that connects the receiving space and the outside and is close to the air intake fan and / or the air outlet fan; the protective cover is a semi-closed box with an opening at one end, the protective cover covers the support frame, and at least a portion of its inner wall is separated from the support frame to form a gas channel that communicates with the through hole and the housing.

2. The light fixture with electric control box of claim 1, wherein: The protective unit also includes a filter screen that covers the through-hole and is close to the protective cover.

3. The light fixture with electrically controlled box of claim 2, wherein: 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 and the support frame.

4. The light fixture with electrically controlled box of claim 1, wherein: The front side of the housing extends vertically; a downward-facing drain hole is provided at the bottom of the protective cover, the drain hole being close to the inner wall of the protective cover facing the through hole.

5. The light fixture with electrically controlled box of claim 1, wherein: The bottom of the protective cover has a drainage hole near the inner wall of the protective cover facing the through hole. The housing also includes a rear side opposite to the front side and extending in a 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 drainage hole is inclined to the front side.

6. The electric control box according to claim 5, characterized in that: The inner top wall of the housing is provided with a mounting protrusion protruding into the receiving space. The electrical component is mounted on the mounting protrusion and separated from the inner bottom wall of the housing by one end distance.

7. The electric control box according to claim 4 or 5, characterized in that: The support frame has drainage grooves extending from the top to the bottom.

8. The electric control box according to claim 4 or 5, characterized in that: The electrical components include a substrate and a battery that are stacked and electrically connected to each other.

9. The light fixture with electrically controlled box of claim 8, wherein: It also includes a solar panel, and the electrical 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.

10. The light fixture with electrically controlled box of claim 9, wherein: The electrical control box is located between the lamp body and the support base, and the front side of the housing faces the support base.

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