Radiator of LED street lamp

Abstract

The utility model provides a radiator of an LED street lamp, which comprises a condenser, a power pump, a heat exchange block and a circulation channel, a heat exchange channel is formed in the heat exchange block, and the circulation channel is sequentially communicated with the condenser, the power pump and the heat exchange channel; the heat exchange block is provided with an inlet and an outlet, and the inlet and the outlet are respectively communicated with the heat exchange channel; the heat exchange channel comprises a first inner wall and a second inner wall, and the first inner wall and the second inner wall are opposite to each other; at least two main cooling fins are arranged on the first inner wall of the heat exchange channel, the main cooling fins extend from the first inner wall to the second inner wall, and the main cooling fins abut against the second inner wall. The radiator of the LED street lamp disclosed by the utility model has a good radiating effect.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation equipment, in particular to a radiator of an LED street lamp. Background Art

[0002] Street lamps play a very important role in road traffic lighting. Currently, most street lamps use high-pressure sodium lamps or halogen lamps as light sources, which consume a lot of energy, have a short lifespan, and are difficult to start at low temperatures. of It is proposed that a new light source with low energy consumption, long life, easy start-up and no pollution is needed to replace the existing road traffic lighting.

[0003] As a new type of light source, high-brightness LED has been widely used in auxiliary lighting, traffic lights and other lighting fixtures, which has improved human production and lifestyle to a certain extent. However, existing high-brightness LED lamps generally have the technical defect of high heat dissipation. At present, the light source cavity inside ordinary lamps adopts a fully sealed device. The heat generated by the light source is not easy to be transferred from the shell. Long-term operation will cause excessive light decay, that is, the light distribution will also be affected to a certain extent, and the overall average illuminance and uniformity will also decrease accordingly. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a radiator for an LED street lamp, which has a good heat dissipation effect.

[0005] In order to achieve the above-mentioned object, the utility model provides a radiator for an LED street lamp, comprising a condenser, a power pump, a heat exchange block and a circulation channel, wherein a heat exchange channel is formed inside the heat exchange block, and the circulation channel sequentially connects the condenser, the power pump and the heat exchange channel;

[0006] The heat exchange block is provided with an inlet and an outlet, and the inlet and the outlet are respectively connected to the heat exchange channel; the heat exchange channel includes a first inner wall and a second inner wall, and the first inner wall and the second inner wall are opposite to each other; at least two main heat sinks are provided on the first inner wall of the heat exchange channel, and the main heat sinks extend from the first inner wall to the second inner wall, and the main heat sinks abut the second inner wall, the main heat sinks are arranged along a direction parallel to the cross-section of the heat exchange channel and the area of ​​the main heat sinks is not less than the area of ​​the cross-section of the heat exchange channel, and the main heat sinks are metal springs.

[0007] According to another specific embodiment of the utility model, a spacing channel is provided between two adjacent main heat sinks, an auxiliary heat sink is provided on the spacing channel, the auxiliary heat sink extends from the second inner wall to the first inner wall, and the auxiliary heat sink abuts the first inner wall, the auxiliary heat sink is arranged along a direction parallel to the cross-section of the heat exchange channel and the area of ​​the auxiliary heat sink is not less than the area of ​​the cross-section of the heat exchange channel, and the auxiliary heat sink is a metal spring.

[0008] According to another specific embodiment of the present utility model, the main heat sink is curved, and the main heat sink is inclined toward the outlet.

[0009] According to another specific embodiment of the present invention, the auxiliary heat sink is curved, and the auxiliary heat sink is inclined toward the outlet.

[0010] According to another specific embodiment of the present utility model, the heat exchange channel and the condensing medium flowing inside the heat exchange channel are water.

[0011] The utility model includes a condenser, a power pump, a heat exchange block and a circulation channel, wherein a heat exchange channel is formed inside the heat exchange block, and the circulation channel is connected to the condenser, the power pump and the heat exchange channel in sequence; an inlet and an outlet are provided on the heat exchange block, and the inlet and the outlet are connected to the heat exchange channel respectively; the heat exchange channel includes a first inner wall and a second inner wall, and the first inner wall and the second inner wall are opposite to each other; at least two main heat sinks are provided on the first inner wall of the heat exchange channel, and the main heat sinks extend from the first inner wall to the second inner wall, and the main heat sinks abut against the second inner wall, and the main heat sinks are arranged along a direction parallel to the cross section of the heat exchange channel and the area of ​​the main heat sinks is not less than the area of ​​the cross section of the heat exchange channel, and the main heat sinks are metal springs.

[0012] When the power pump is working, the condensing medium flow inside the circulation channel flows into the heat exchange channel from the inlet. Due to the pushing action of the power pump, the condensing medium pushes the main heat sink, causing the main heat sink to leave the second inner wall. The condensing medium flows through the gap between the main heat sink and the second inner wall to reach the next main heat sink, thereby increasing the contact area between the heat exchange block and the condensing medium and enhancing the heat dissipation effect.

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the internal structure of the radiator of the LED street lamp;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the radiator of the LED street lamp.

[0016] Reference numerals:

[0017] 10. LED lamp body; 20. Condenser; 30. Power pump; 40. Heat exchange block; 41. Heat exchange channel; 42. First inner wall; 43. Second inner wall; 44. Main heat sink; 45. Auxiliary heat sink; 50. Circulation channel; 60. LED lamp body. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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 referred device or element 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.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0023] This embodiment provides a heat sink for an LED street lamp, such as Figures 1 to 2 As shown, it includes an LED lamp body 10, a condenser 20, a power pump 30, a heat exchange block 40 and a circulation channel 50. A heat exchange channel 41 is formed inside the heat exchange block 40. The circulation channel 50 sequentially connects the condenser 20, the power pump 30 and the heat exchange channel 41, so that the condensing medium is circulated. The LED lamp body 10 is fitted with the heat exchange block 40 to facilitate heat dissipation.

[0024] The heat exchange block 40 is provided with an inlet and an outlet, and the inlet and the outlet are respectively connected to the heat exchange channel 41; the heat exchange channel 41 includes a first inner wall 42 and a second inner wall 43, and the first inner wall 42 and the second inner wall 43 are opposite to each other; at least two main heat sinks 44 are provided on the first inner wall 42 of the heat exchange channel 41, and the main heat sinks 44 extend from the first inner wall 42 to the second inner wall 43, and the main heat sinks 44 abut against the second inner wall 43.

[0025] The power pump 30 is working, and the condensing medium flow inside the circulation channel 50 flows into the heat exchange channel 41 from the inlet. Due to the pushing action of the power pump 30, the condensing medium pushes the main heat sink 44, so that the main heat sink 44 leaves the second inner wall 43, and the condensing medium flows through the gap between the main heat sink 44 and the second inner wall 43 to reach the next main heat sink 44, thereby increasing the contact area between the heat exchange block 40 and the condensing medium and enhancing the heat dissipation effect.

[0026] The main heat sink 44 is arranged along a direction parallel to the cross-section of the heat exchange channel 41 and the area of ​​the main heat sink 44 is not less than the area of ​​the cross-section of the heat exchange channel 41, so that before the main heat sink 44 moves away from the second inner wall 43, the space between the main heat sink 44 and the inlet can be filled. The main heat sink 44 is a metal spring to facilitate resetting.

[0027] A spacing channel is provided between two adjacent main heat sinks 44, and an auxiliary heat sink 45 is provided on the spacing channel. The auxiliary heat sink 45 extends from the second inner wall 43 to the first inner wall 42, and the auxiliary heat sink 45 abuts against the first inner wall 42. The main heat sink 44 and the auxiliary heat sink 45 form a curved channel inside the heat exchange channel 41, thereby increasing the flow path of the condensing medium inside the heat exchange channel 41 and increasing the contact area between the condensing medium and the heat exchange block 40, which is beneficial to increasing the heat exchange effect; the auxiliary heat sink 45 is arranged along a direction parallel to the cross-section of the heat exchange channel 41 and the area of ​​the auxiliary heat sink 45 is not less than the area of ​​the cross-section of the heat exchange channel 41, and the auxiliary heat sink 45 is a metal spring to facilitate resetting.

[0028] In this embodiment, nine main heat sinks 44 are provided, and eight auxiliary heat sinks 45 are provided. The main heat sinks 44 and the auxiliary heat sinks 45 are arranged at equal intervals, which is conducive to uniform heat dissipation.

[0029] The main radiating fins 44 are curved and inclined toward the outlet, thereby increasing the contact area between the condensing medium and the heat exchange block 40 .

[0030] The auxiliary heat sink 45 is curved and inclined toward the outlet, thereby increasing the contact area between the condensing medium and the heat exchange block 40 .

[0031] The heat exchange channel 41 and the condensing medium flowing inside the heat exchange channel 41 are water, which is easy to obtain.

[0032] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the scope of the present invention. Any ordinary technician in the field can make some improvements without departing from the scope of the present invention, that is, all equivalent improvements made according to the present invention should be covered by the scope of the present invention.

Claims

1. A radiator for an LED street lamp, characterized in that: It includes a condenser, a power pump, a heat exchange block and a circulation channel, wherein the heat exchange channel is formed inside the heat exchange block, and the circulation channel sequentially connects the condenser, the power pump and the heat exchange channel; The heat exchange block is provided with an inlet and an outlet, and the inlet and the outlet are respectively connected to the heat exchange channel; the heat exchange channel includes a first inner wall and a second inner wall, and the first inner wall and the second inner wall are opposite to each other; at least two main heat sinks are provided on the first inner wall of the heat exchange channel, and the main heat sinks extend from the first inner wall to the second inner wall, and the main heat sinks abut the second inner wall, the main heat sinks are arranged along a direction parallel to the cross-section of the heat exchange channel and the area of ​​the main heat sinks is not less than the area of ​​the cross-section of the heat exchange channel, and the main heat sinks are metal springs.

2. The heat sink of the LED street lamp according to claim 1, characterized in that: A spacing channel is provided between two adjacent main heat sinks, and an auxiliary heat sink is provided on the spacing channel. The auxiliary heat sink extends from the second inner wall to the first inner wall, and the auxiliary heat sink abuts the first inner wall. The auxiliary heat sink is arranged along a direction parallel to the cross-section of the heat exchange channel and the area of ​​the auxiliary heat sink is not less than the area of ​​the cross-section of the heat exchange channel. The auxiliary heat sink is a metal spring.

3. The heat sink of the LED street lamp according to claim 1, characterized in that: The main radiating fins are curved and inclined toward the outlet.

4. The heat sink of the LED street lamp as claimed in claim 2, characterized in that: The auxiliary heat sink is curved and inclined toward the outlet.

5. The heat sink of the LED street lamp according to claim 1, characterized in that: The heat exchange channel and the condensing medium flowing inside the heat exchange channel are water.

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