Light source device with improved heat dissipation structure

Abstract

The utility model relates to improvement of a heat dissipation structure of a light source device in the technical field of electronic appliances. The utility model discloses a light source device with an improved heat dissipation structure, which comprises a lamp shell, a lamp cavity is arranged on the inner side of the lamp shell, a lamp tube and a light-transmitting plate are arranged in the lamp cavity, the light source device is characterized in that the lamp shell is further provided with an air inlet hole, an air inlet cavity and an air outlet cavity, the air inlet hole is arranged on the side wall of the lamp shell, and the air outlet cavity is arranged on the side wall of the lamp shell. The air outlet cavity is provided with an exhaust fan capable of exhausting air in the air outlet cavity outwards, the air inlet hole, the air inlet cavity, the air outlet hole, the air outlet cavity and the exhaust fan jointly form a heat dissipation air channel, and the heat dissipation air channel passes through the surface of the lamp tube. According to the light source device with the improved heat dissipation structure, the exhaust fan is installed at the air outlet cavity of the lamp shell, and therefore an air channel which can help the lamp tube to efficiently dissipate heat through the lamp tube can be achieved through work of the exhaust fan.

Description

Technical Field

[0001] This utility model relates to an improvement in the heat dissipation structure of a light source device in the field of electronic and electrical technology. Background Technology

[0002] Mercury lamps are primarily used as light sources for street lighting. Mercury vapor lamps are commonly used in urban street lighting due to their high luminous efficiency and long lifespan. However, mercury lamps generate a significant amount of heat during operation. Because mercury lamps require a dust-free working environment, they cannot directly dissipate heat from the lamp tube surface through open sidewalls like other lamps. This results in excessive heat buildup near the lamp tube over time, directly impacting the lamp's lifespan. Utility Model Content

[0003] This invention improves the heat dissipation structure of a light source device by installing an exhaust fan at the air outlet of the lamp housing, thereby creating an airflow channel through the lamp tube to help the lamp tube dissipate heat efficiently.

[0004] This utility model discloses a light source device with an improved heat dissipation structure, including a lamp housing. An inner cavity is provided within the lamp housing, and a lamp tube and a light-transmitting plate are installed inside the lamp cavity. The lamp cavity and the light-transmitting plate together form a sealed space. The lamp housing is characterized by further having an air inlet, an air inlet chamber, and an air outlet chamber. The air inlet is located on the side wall of the lamp housing, and an exhaust fan is installed in the air outlet chamber to draw air outwards. The air inlet, air inlet chamber, air outlet, air outlet chamber, and exhaust fan together form a heat dissipation duct that passes through the surface of the lamp tube. The air inlet opening faces the lamp tube. The lamp tube can refer to a mercury lamp tube. A side plate is installed on the left side of the lamp housing, and an exhaust fan is installed on the right side.

[0005] This light source device includes common mechanical components such as a power supply and a control unit. One end of the power supply is electrically connected to the control unit, and the other end has a plug. The control unit is electrically connected to the lamp tube and the exhaust fan, and it has control buttons. Users can control the lamp brightness or the exhaust fan speed by operating the control buttons to meet actual usage needs. The lamp cavity and the light-transmitting plate together form a sealed space, meaning a space that is not easily ventilated, not a space that is completely sealed off from the outside air.

[0006] Preferably, the lamp housing is provided with a filter cavity, the air inlet is opened on the inner wall between the filter cavity and the lamp cavity, the filter cavity is filled with filter cotton, and the filter cavity is provided with a filter cavity baffle to prevent the filter cotton from falling out of the filter cavity, and the filter cavity baffle has a baffle hole.

[0007] Preferably, the filter chamber has a sliding groove, and the filter chamber baffle is installed into the lamp housing by inserting into the sliding groove.

[0008] Preferably, the air inlet cavity has an air inlet hole that faces vertically downwards and is directly opposite the lamp tube.

[0009] Preferably, an arc-shaped light shield is installed inside the lamp cavity. The light shield includes a blocking end and a light shield knob, and the light shield knob protrudes outside the lamp housing.

[0010] Compared with the prior art, this utility model has a plurality of air holes in the lamp housing, which form a high-efficiency heat dissipation air channel under the action of the exhaust fan, so as to efficiently carry the working heat of the lamp tube surface out of the light source device, making the light source device a simple structure but with high heat dissipation efficiency. Attached Figure Description

[0011] Figure 1 This is a side view of a light source device with an improved heat dissipation structure according to the present invention, wherein the side plate and the exhaust fan 3 are omitted.

[0012] Figure 2 This is a front view of a light source device with an improved heat dissipation structure according to the present invention.

[0013] Attached reference numerals: 11-lamp tube, 12-light-transmitting plate, 2-lamp housing, 21-lamp cavity, 22-air outlet cavity, 23-air outlet hole, 24-air inlet hole, 25-filter cavity, 26-filter cavity baffle, 27-baffle hole, 28-filter cotton, 29-air inlet cavity, 291-air inlet cavity hole, 3-exhaust fan, 4-shielding end. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] refer to Figure 1 A light source device with improved heat dissipation structure includes a lamp housing 2. An inner cavity 21 is provided within the lamp housing 2, where a lamp tube 11 and a light-transmitting plate 12 are installed. The lamp cavity 21 and the light-transmitting plate 12 together form a sealed space. The lamp housing 2 is characterized by having an air inlet 24 with one end opening to the outside and the other end opening to the lamp cavity 21. An air outlet 22 is also provided inside the lamp housing 2. An air outlet 23 is formed between the lamp cavity 21 and the air outlet 22. An exhaust fan 3 is installed in the air outlet 22 to draw air out of the air outlet 22. The air inlet 24 is vertically downwards, directly facing the lamp tube 11. A filter cavity 25 has a rectangular cross-section filter duct facing inwards, with the air inlet 24 located on the bottom surface of the filter duct.

[0016] When the lamp tube 11 is in operation, and the exhaust fan 3 is working, the outside air first passes through the ventilation hole 27 and then through the filter cotton 28 for dust filtration. Then it enters the air duct of the filter chamber, passes through the air inlet hole 24 and blows on the surface of the lamp tube 11, so that the air carries away the heat from the surface of the lamp tube 11. Then it passes through the air outlet hole 23 and enters the air outlet chamber 22. Finally, it is drawn out of the device by the exhaust fan 3, thus completing the heat dissipation.

[0017] refer to Figure 2 The exhaust fan 3 is installed on the side of the housing 2, so that when the exhaust fan 3 is working, the air carrying the heat from the lamp tube 11 can enter the wide air outlet chamber 22 and then be drawn away. The wide air outlet chamber 22 provides an additional heat dissipation space, which promotes the heat dissipation efficiency of the device during operation.

[0018] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A light source device with improved heat dissipation structure, comprising a lamp housing (2), wherein a lamp cavity (21) is provided on the inner side of the lamp housing (2), and a lamp tube (11) and a light-transmitting plate (12) are installed inside the lamp cavity (21), wherein the lamp cavity (21) and the light-transmitting plate (12) together form a sealed space, characterized in that, The lamp housing (2) is also provided with an air inlet (24), an air inlet cavity (29), and an air outlet cavity (22). The air inlet (24) is located on the side wall of the lamp housing (2). The air outlet cavity (22) is equipped with an exhaust fan (3) that can draw the air out of the air outlet cavity (22). The air inlet (24), the air inlet cavity (29), the air outlet (23), the air outlet cavity (22), and the exhaust fan (3) together form a heat dissipation air duct. The heat dissipation air duct passes through the surface of the lamp tube (11).

2. The light source device with improved heat dissipation structure according to claim 1, characterized in that, The lamp housing (2) is also provided with a filter plate cavity (25), the air inlet (24) is opened between the filter plate cavity (25) and the air inlet cavity (29), the filter plate cavity (25) is provided with a filter baffle (26), the filter baffle (26) is provided with a filter hole (27), and the filter hole (27) is provided with filter cotton.

3. The light source device with improved heat dissipation structure according to claim 2, characterized in that, The filter plate cavity (25) has a sliding groove, and the filter baffle (26) is installed into the filter plate cavity (25) by inserting into the sliding groove.

4. The light source device with improved heat dissipation structure according to claim 1, characterized in that, The air inlet cavity (29) has an air inlet hole (291) that is vertically downward and directly opposite the lamp tube (11).

5. A light source device with improved heat dissipation structure according to claim 1, characterized in that, An arc-shaped light shield is installed inside the lamp cavity (21). The light shield includes a blocking end (4) and a light shield knob. The light shield knob protrudes out of the lamp housing (2).

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