CN104696926A - Light reflection cover heat dissipation structure and lamp - Google Patents

Abstract

A heat dissipation structure for a reflector, comprising: a reflector, the reflector includes a reflector body and a connecting portion, a first through hole is opened in the center of the reflector body, and the connecting portion is cylindrical, which is composed of the first through hole of the reflector body The periphery of the through hole extends upwards; the fan assembly is ring-shaped and has a second through hole in the center, the fan assembly is sleeved on the connecting part through the second through hole, and the fan assembly is the bottom side of the air outlet; the temperature controller, The thermostat is fixed on the reflector and electrically connected with the fan assembly. The thermostat detects the temperature of the reflector. When the temperature exceeds the first preset value, the fan assembly starts to run. When the temperature is lower than the second preset value, Fan assembly stopped working. The invention controls the start-up and shutdown of the fan assembly by sensing the temperature of the reflector through the temperature controller, so that the fan assembly can blow and dissipate heat from the reflector, avoiding setting up a complex heat dissipation structure, and the entire heat dissipation structure of the reflector is small in size, light in weight and easy to install. Space requirements are smaller.

Description

A reflector heat dissipation structure and a lamp

technical field

The invention relates to a lighting fixture, in particular to a heat dissipation structure of a reflector and a lighting fixture.

Background technique

Existing lamp reflectors generally do not have air convection cooling structures. In order to increase the heat dissipation effect in the prior art, the method of increasing heat dissipation fins and thus increasing the heat dissipation area to realize the heat dissipation of the lampshade is basically adopted, but the disadvantage of this method in the prior art is that the shape of the lampshade requires It is relatively large, heavy, high in cost, and requires a large installation space.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies in the prior art, and propose a reflector cooling structure and lamp, which are small in size, light in weight and require less installation space.

In order to solve the above-mentioned technical problems, the present invention proposes a heat dissipation structure of a reflector, comprising: a reflector, the reflector includes a reflector body and a connection part, a first through hole is opened in the center of the reflector body, and the connection The part is cylindrical, which is formed by extending upward from the periphery of the first through hole of the reflector body; the fan assembly, which is ring-shaped, has a second through hole in its center, and the fan assembly passes through the The second through hole is sleeved on the connecting part, and the fan assembly is the bottom side air outlet; the temperature controller, the temperature controller is fixed on the reflector and is electrically connected with the fan assembly, and the temperature controller The sensor detects the temperature of the reflector, when the temperature exceeds a first preset value, the fan assembly starts to run, and when the temperature is lower than a second preset value, the fan assembly stops working.

Preferably, the fan assembly includes: a fan bottom case, the fan bottom case includes a base, an inner connecting wall and an outer connecting wall, the base is circular and has a through hole in the center, the base is hollowed out to form a plurality of air outlets, The inner edge and the outer edge of the base extend upwards to form an inner connecting wall and an outer connecting wall respectively; the electromagnetic coil is installed in the fan bottom case and is sleeved and fixed on the inner connecting wall; the fan blade includes an annular The base, a plurality of magnetic poles installed on the inner ring of the base and a plurality of blades protruding outward from the base are installed in the fan bottom case and sleeved on the electromagnetic coil; A fan top cover, the fan top cover is a ring, the outer edge of the ring is connected to the outer connection wall, the inner edge of the ring is connected to the inner connection wall, and the fan top cover closes the fan The upper end of the bottom case is open.

Preferably, the side of the fan assembly close to the outer surface of the reflector is hollowed out to form a plurality of air outlets.

Preferably, the fan assembly is circular.

Preferably, the heat dissipation structure of the reflector further includes a light source, and the light source is fixed in the reflector body.

Preferably, the heat dissipation structure of the reflector further includes a lamp cap suspension assembly connected to the reflector, and the lamp cap suspension assembly is used to suspend the heat dissipation structure of the reflector.

Preferably, the lamp hanger assembly includes a lampshade and a hook, and the hook is connected at the center of the upper surface of the lampshade.

Preferably, the cross-section of the reflector is circular, and the diameter of the reflector increases continuously from one side close to the connecting portion to the other side away from the connecting portion, which is conical.

The present invention also provides a lamp, which includes the above heat dissipation structure of the reflector.

Compared with the prior art, the present invention has the following beneficial effects: the present invention controls the start-up and shutdown of the fan assembly by sensing the temperature of the reflector through the thermostat, so that the fan assembly can blow and dissipate heat from the reflector, avoiding complex heat dissipation structure, the entire reflector heat dissipation structure is small in size, light in weight and requires less installation space. the

Description of drawings

Fig. 1 is an exploded view of the heat dissipation structure of the reflector of the present invention.

FIG. 2 is an assembly diagram of the fan assembly and the reflector of the reflector cooling structure of the present invention.

FIG. 3 is an assembled view of the fan assembly and the reflector of the reflector cooling structure of the present invention.

Figure 4 is a side view of the fan assembly and reflector.

FIG. 5 is a cross-sectional view along the A-A direction of FIG. 4 .

Wherein, the reference numerals are described as follows: reflector 1, reflector body 11, connecting portion 12, fan assembly 2, fan bottom case 21, base 211, inner connecting wall 213, outer connecting wall 212, electromagnetic coil 22, fan blade 23 , fan top cover 24, temperature controller 3, light source 4, lamp cap hanging assembly 5, lampshade 51 and hook 52.

Detailed ways

In order to further illustrate the principle and structure of the present invention, preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Please refer to FIG. 1 to FIG. 5 , the present invention provides a heat dissipation structure of a reflector, which includes a reflector 1 , a fan assembly 2 , a temperature controller 3 , a light source 4 and a lamp cap suspension assembly 5 .

Reflector 1, described reflector 1 comprises reflector body 11 and connecting portion 12, the center of described reflector body 11 has first through hole, and described connecting portion is cylindrical, and it is formed by described reflector The peripheral edge of the first through hole of the body extends upwards. In this embodiment, the cross-section of the reflector 1 is circular, and the diameter of the reflector 1 increases continuously from the side close to the connecting portion 12 to the other side away from the connecting portion 12, which is conical. . In other embodiments, the shape of the reflector 1 can be changed according to different requirements for light reflection.

A fan assembly 2, the fan assembly 2 is ring-shaped, with a second through hole in the center, the fan assembly 2 is sleeved on the connecting portion 12 through the second through hole, the fan assembly 2 is Wind out from the bottom side. In this embodiment, the side of the fan assembly 2 close to the outer surface of the reflector 1 is hollowed out to form a plurality of air outlets. The purpose is to facilitate the fan assembly 2 to discharge air. In other embodiments, other forms may be used, for example, grid-shaped plates and the like may be used. In this embodiment, the fan assembly 2 is circular. The use of a circular shape can better adapt to the entire structure, and in other embodiments, different shapes can also be used according to different needs. In this embodiment, the fan assembly 2 includes a fan bottom case 21, an electromagnetic coil 22, a fan blade 23 and a fan top cover 24, and the fan bottom case 21 includes a base 211, an inner connecting wall 213 and an outer connecting wall 21. Wall 212, the base 211 is circular, with a through hole in the center, and the base 211 is hollowed out to form a plurality of air outlets, and the inner and outer edges of the base 211 extend upward to form an inner connecting wall 213 and an outer connecting wall, respectively. wall 212 . The electromagnetic coil 22 is installed in the fan bottom case 21 and is sleeved and fixed on the inner connecting wall 213, between the inner connecting wall 213 and the outer connecting wall 212; the fan blade 23 includes an annular base, an installation A plurality of magnetic poles on the inner circle of the base and a plurality of blades protruding outward from the base are installed in the fan bottom case 21 and sleeved on the electromagnetic coil 22, located in the inner connection Between the wall 213 and the outer connection wall 212; the fan top cover 24, the fan top cover 24 is a ring, the outer edge of the ring is connected to the outer connection wall 212, and the inner edge of the ring is connected to the The inner connecting wall 213 , the fan top cover 24 closes the upper opening of the fan bottom case 21 . With this structure, the fan blades 23 can be enclosed between the fan bottom case 21 and the fan top cover 24 , which plays a good protective role and avoids collisions and entry of dust. In other embodiments, the structure of the fan assembly 2 can also adopt different structures as required, as long as it can play the role of blowing air and cooling the outer surface of the reflector 1 .

A thermostat 3, the thermostat 3 is fixed on the reflector 1 and electrically connected with the fan assembly 2, the thermostat 3 detects the temperature of the reflector 1, when the temperature exceeds the first preset When the temperature is set, the fan assembly 2 starts to run, and when the temperature is lower than a second preset value, the fan assembly 2 stops working.

The light source 4 is fixed in the reflector body 11 .

A lamp cap hanging component 5, the lamp cap hanging component 5 is connected to the reflector 1, and the lamp cap hanging component 5 is used to hang the heat dissipation structure of the reflector. In this embodiment, the lamp hanger assembly 5 includes a lampshade 51 and a hook 52 , and the hook 52 is connected at the center of the upper surface of the lampshade 51 . In this embodiment, the shape of the lampshade 51 is similar to that of the reflector 1 to facilitate the connection between the reflector 1 and the lampshade 51 . In other embodiments, the shape of the lampshade 51 can be changed according to actual needs.

The present invention also provides a lamp, which includes the above heat dissipation structure of the reflector.

The working principle of the present invention will be described in detail below by taking this embodiment as an example.

When the light source 4 started to emit light, the temperature of the reflector 1 began to rise. At this time, the temperature controller 3 arranged on the reflector 1 felt that the temperature reached the first preset value, and the fan assembly 2 was started, and the fan assembly 2 moved toward the first preset value. The outer surface of the reflector 1 is blown, and the airflow takes away the heat so that the temperature of the reflector 1 is reduced. When the temperature continues to drop to the second preset value, the thermostat 3 stops the work of the fan assembly 2, and it can be repeated like this Controlling the temperature of the reflector 1 between the first preset value and the second preset value plays the role of temperature control and heat dissipation.

In summary, the present invention controls the startup and shutdown of the fan assembly by sensing the temperature of the reflector through the temperature controller, so that the fan assembly can blow and dissipate heat from the reflector, avoiding setting up a complex heat dissipation structure, and the entire heat dissipation structure of the reflector is small in size , light weight and requires less installation space.

The above descriptions are only preferred feasible embodiments of the present invention, and do not limit the protection scope of the present invention. All equivalent structural changes made by using the description and drawings of the present invention are included in the protection scope of the present invention.

Claims (9)

1. A reflector cooling structure, characterized in that, comprising: A reflector, the reflector includes a reflector body and a connection part, the center of the reflector body has a first through hole, the connection part is cylindrical, and it is formed by the first through hole of the reflector body The periphery of the hole is formed by extending upward; A fan assembly, the fan assembly is ring-shaped, with a second through hole in the center, the fan assembly is sleeved on the connecting part through the second through hole, and the fan assembly is the bottom side of the air outlet; a thermostat, the thermostat is fixed on the reflector and is electrically connected to the fan assembly, the thermostat detects the temperature of the reflector, and when the temperature exceeds a first preset value, the The fan assembly starts to run, and when the temperature is lower than a second preset value, the fan assembly stops working. 2. reflector cooling structure according to claim 1, is characterized in that, described fan assembly comprises: A fan bottom case, the fan bottom case includes a base, an inner connecting wall and an outer connecting wall, the base is circular with a through hole in the center, the base is hollowed out to form a plurality of air outlets, the inner edge of the base and The outer edges all extend upward to form an inner connecting wall and an outer connecting wall; The electromagnetic coil is installed in the bottom case of the fan and fixed on the inner connecting wall; The fan blade includes an annular base, a plurality of magnetic poles installed on the inner ring of the base, and a plurality of blades protruding outward from the base, installed in the fan bottom case and sleeved on the on the electromagnetic coil; A fan top cover, the fan top cover is a ring, the outer edge of the ring is connected to the outer connection wall, the inner edge of the ring is connected to the inner connection wall, and the fan top cover closes the fan The upper end of the bottom shell is open. 3 . The heat dissipation structure of the reflector according to claim 1 , wherein a plurality of air outlets are hollowed out on the side of the fan assembly close to the outer surface of the reflector. 4 . 4. The heat dissipation structure of the reflector according to claim 1, wherein the fan assembly is in an annular shape. 5 . The reflector cooling structure according to claim 1 , wherein the reflector heat dissipation structure further comprises a light source, and the light source is fixed in the reflector body. 6. The reflector heat dissipation structure according to claim 1, characterized in that, the reflector heat dissipation structure further comprises a lamp cap suspension assembly, the lamp cap suspension assembly is connected to the reflector, and the lamp cap suspension assembly is used for To hang the heat dissipation structure of the reflector. 7 . The heat dissipation structure of the reflector according to claim 6 , wherein the lamp holder suspension assembly comprises a lampshade and a hook, and the hook is connected at the center of the upper surface of the lampshade. 8 . 8. The heat dissipation structure of the reflector according to claim 1, wherein the cross section of the reflector is circular, and the diameter of the reflector is from the side close to the connecting portion to the side away from the connecting portion The other side keeps growing and takes on a conical shape. 9. A lamp, characterized in that the lamp comprises the heat dissipation structure of the reflector according to any one of claims 1-8.