CN208237809U - Elastic LED light source gland - Google Patents

Abstract

The disclosure provides an elastic LED light source gland, including an upper gland, a lower gland, and an elastic element, wherein one end of the elastic element is connected to the upper gland, and the other end is connected to the lower gland. When fixing the LED light source, the tightening force of the screw is transmitted to the elastic element through the upper gland, causing the deformation of the elastic element to generate elastic force, which is then transmitted to the lower gland, and finally evenly acts on the LED light source. The elastic LED light source gland of the present disclosure avoids the increase of interface thermal resistance and the uneven force on the LED light source caused by improper tightening force control when the LED light source is directly fixed by screws or by a light source gland without elastic elements. The internal structure of the light source chip is deformed or even damaged.

Description

Elastic LED light source gland

technical field

The disclosure belongs to the technical field of LED lighting, and in particular relates to an elastic LED light source gland.

Background technique

As a new generation of lighting technology, LED is more and more widely used in daily life lighting and professional lighting fields such as fishing lures, ports, and city squares due to its energy saving, environmental protection, and long life. And the high-power LED light source is showing the development trend of miniaturization and integration. Although the luminous efficiency of the LED is high, 70-80% of the energy is still converted into heat. If this part of the heat is not dissipated in time, the junction temperature of the LED will be too high, and the junction temperature that is too high will not only shorten the life of the LED Attenuation will also affect many performance parameters such as the peak wavelength, optical power, and luminous flux of the LED. In the actual assembly process of the LED lamp, in order to have a better heat conduction effect, usually the back of the LED light source is evenly coated with heat conduction silicone grease, and then an external force is applied to make it closely adhere to the heat sink.

There are usually several ways to fix the LED light source: first, there are screw holes on the periphery of the light source chip, and the LED light source is directly fixed on the radiator through screws; Place a light source gland with screw holes, and fix the light source gland on the radiator through screws to indirectly fix the light source; the third method is the combination of the first method and the second method, that is, directly through the screw Fix the light source on the heat sink, and then further fix it through the light source gland; the fourth method uses heat-conducting silicone to directly paste the light source on the heat sink.

For the first three methods of directly or indirectly fixing the LED light source with screws, in order to ensure the tight fit between the LED light source and the heat sink without damaging the internal structure of the light source chip, sufficient and appropriate tightening force is required during the process of tightening the screws. However, in actual operation, sufficient and proper tightening force is difficult to control. If the tightening force is too small, the LED light source and the heat sink are not tightly bonded, and an air layer with a small thermal conductivity is likely to be formed between the two, and the thermal resistance of the interface increases, thereby affecting the heat conduction effect. If the tightening force is too large, it is easy to cause uneven force on the LED light source, causing deformation or even damage to the internal structure of the LED light source chip, which will have a serious impact on the use and life of the lamp. In addition, the uneven force on the LED light source will also cause the thickness of the heat-conducting silicone grease layer to vary, which will also have a serious impact on the heat-conducting effect. The fourth method is to use heat-conducting silica gel to directly paste the light source on the heat sink. In actual operation, in order to make the light source firmly attached to the surface of the heat sink, a certain thickness of heat-conducting silica gel is required. Due to the low thermal conductivity of heat-conducting silica gel (0.5～2W/mK), the increase of the thickness will lead to the increase of the thermal resistance of the interface, which will affect the transfer of heat to the radiator, and finally cause the junction temperature of the LED chip to be too high, resulting in burning and dead lights. Therefore, this fixing method is usually only suitable for smaller power LED lamps.

Therefore, a new fixing method of the LED light source is needed to solve the problems encountered in the prior art.

Utility model content

(1) Technical problems to be solved

The present disclosure provides an elastic LED light source gland to at least partially solve the above-mentioned technical problems.

(2) Technical solutions

The present disclosure provides an elastic LED light source gland, comprising: an upper gland with a first screw hole for fixing the elastic light source gland; a lower gland with a notch on the lower gland, It is used for welding the positive and negative poles of the LED light source; and the first elastic element, one end of which is connected to the upper gland, and the other end is connected to the lower gland; wherein, when the LED light source is fixed, the tightening force of the screw is transmitted to the The first elastic element causes the deformation of the first elastic element to generate elastic force, which is then transmitted to the lower gland, and finally evenly acts on the LED light source.

In some embodiments of the present disclosure, the first elastic element is connected to the upper gland and the lower gland by interference fit, pasting or screw fixing.

In some embodiments of the present disclosure, the material of the upper gland and the lower gland is plastic, enamel or ceramics.

In some embodiments of the present disclosure, the upper gland and the lower gland are integrated, and the elastic LED light source gland includes: an integral gland with a positioning hole on its side; and a second elastic element disposed at the positioning hole , the second elastic element is provided with a second screw hole, and the screw passes through the second elastic element and the integrated gland; wherein, when fixing the LED light source, the tightening force of the screw is transmitted to the integrated gland through the second elastic element, and finally acts uniformly to the LED light source.

In some embodiments of the present disclosure, the connection form of the second elastic element and the integral gland is interference fit, sticking or fixing with screws.

In some embodiments of the present disclosure, the integral gland is made of plastic, enamel or ceramic.

In some embodiments of the present disclosure, the first elastic element or the second elastic element is a spring, a C-shaped elastic piece or a bow-shaped elastic piece.

In some embodiments of the present disclosure, the material of the first elastic element or the second elastic element is rubber, polyurethane or spring steel.

(3) Beneficial effects

It can be seen from the above technical solutions that the elastic LED light source gland of the present disclosure has at least one of the following beneficial effects:

(1) An elastic element is set between the upper and lower glands, or an elastic element is set on the integral gland, so that the tightening force for fixing the LED light source can be evenly applied to the LED light source after being buffered by the elastic element, avoiding the direct use of screws When fixing the LED light source or using a light source gland without elastic elements to fix the LED light source, the uneven force on the LED light source will cause deformation or even damage to the internal structure of the light source chip;

(2) The tightening force for fixing the LED light source is transmitted to the gland through the elastic element, and then evenly applied to the LED light source chip, which avoids the uneven thickness of the heat-conducting silicone grease layer caused by the uneven force of the LED light source, which leads to interface problems increase in thermal resistance.

Description of drawings

FIG. 1 is a schematic structural diagram of an elastic light source gland in a first embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of the elastic light source gland in the second embodiment of the present disclosure.

FIG. 3 is a schematic structural diagram of an elastic light source gland in a third embodiment of the present disclosure.

Fig. 4 is a top view of the integral gland of the elastic light source gland according to the third embodiment of the present disclosure.

Fig. 5 is a bottom view of the integral gland of the elastic light source gland according to the third embodiment of the present disclosure.

[Description of main component symbols of the embodiment of the present disclosure in the accompanying drawings]

110-upper gland;

111-screw hole;

120-lower gland;

121-gap

130 - spring;

140 - light source;

210-upper gland;

211-screw hole;

220-lower gland;

221-gap

230-C shaped shrapnel;

240 - light source;

310-integrated gland;

311-screw hole; 312-positioning hole;

330 - bow shrapnel;

340 - Light source.

Detailed ways

The disclosure provides an elastic LED light source gland, which includes an upper gland, a lower gland, and an elastic element, wherein one end of the elastic element is connected to the upper gland, and the other end is connected to the lower gland. When fixing the LED light source, the tightening force of the screw is transmitted to the elastic element through the upper gland, causing the deformation of the elastic element to generate elastic force, which is then transmitted to the lower gland, and finally evenly acts on the LED light source. The elastic LED light source gland of the present disclosure avoids the increase of interface thermal resistance and uneven force on the LED light source caused by improper tightening force control when the LED light source is directly fixed by screws or by a light source gland without elastic elements. The internal structure of the light source chip is deformed or even damaged.

In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

Certain embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which some but not all embodiments are shown. Indeed, various embodiments of the disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth here; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.

In a first exemplary embodiment of the present disclosure, a flexible LED light source gland is provided. FIG. 1 is a schematic structural diagram of an elastic LED light source gland in the first embodiment of the present disclosure. As shown in Figure 1, the elastic LED light source gland of the present disclosure includes an upper gland 110, a lower gland 120, and a spring 130; four corners of the upper gland 110 are provided with screw holes 111 for fixing the elastic light source gland; The four corners of the gland 120 are provided with notches 121, which are used for welding the positive and negative electrodes of the LED light source; one end of the spring 130 is connected to the upper gland 110, and the other end is connected to the lower gland 120; wherein, when fixing the LED light source, the screw The tightening force is transmitted to the spring 130 through the upper gland 110, causing the spring 130 to deform to generate an elastic force, which is then transmitted to the lower gland 120, and finally evenly acts on the LED light source.

Each component of the flexible LED light source gland of this embodiment will be described in detail below.

The upper gland 110 is rectangular, and its four corners are provided with screw holes 111; its material is plastic, enamel or ceramics.

The lower gland 120 has notches 121 at its four corners; its material is plastic, enamel or ceramics.

The spring 130 is connected to the upper gland 110 and the lower gland 120 in the form of interference fit, sticking or fixing with screws.

It should be noted that the spring 130 is an elastic element with elastic cushioning capacity, and can also be a C-shaped elastic piece or a bow-shaped elastic piece; the elastic element is made of non-metallic or metallic elastic materials, such as rubber, polyurethane and spring steel.

So far, the introduction of the elastic LED light source cover of the first embodiment of the present disclosure is completed.

In a second exemplary embodiment of the present disclosure, an elastic LED light source gland is provided. FIG. 2 is a schematic structural diagram of an elastic LED light source gland according to a second embodiment of the present disclosure. As shown in Figure 2, the elastic LED light source gland includes an upper gland 210, a lower gland 220, and a C-shaped shrapnel 230; four corners of the upper gland 210 are provided with screw holes 211 for fixing the elastic light source gland; The four corners of the cover 220 are provided with notches 221, which are used for welding the positive and negative electrodes of the LED light source; one end of the C-shaped shrapnel 230 is connected to the upper gland 210, and the other end is connected to the lower gland 220; wherein, when fixing the LED light source, the screw The tightening force is transmitted to the C-shaped elastic piece 230 through the upper gland 210, causing the deformation of the C-shaped elastic piece 230 to generate an elastic force, which is then transmitted to the lower gland 220, and finally evenly acts on the LED light source.

Compared with the elastic LED light source gland of the first embodiment, the difference of the elastic LED light source gland of this embodiment is that the elastic element is a C-shaped elastic piece 230 .

So far, the introduction of the elastic LED light source cover of the second embodiment of the present disclosure is completed.

In a third exemplary embodiment of the present disclosure, an elastic LED light source gland is provided. Fig. 3 is a schematic structural view of the elastic LED light source gland in the third embodiment of the present disclosure. As shown in Figure 3, the elastic LED light source gland includes an integral gland 310 and a bow-shaped shrapnel 330; a positioning hole 312 is provided on each side of the integral gland 310; There is a screw hole 311, and the screw passes through the bow-shaped shrapnel 330 and the integral gland 310; when fixing the LED light source, the tightening force of the screw is transmitted to the integral gland 310 through the bow-shaped shrapnel 330, and finally evenly acts on the LED light source.

Each component of the flexible LED light source gland of this embodiment will be described in detail below.

Fig. 4 is a top view of the integral gland of the elastic light source gland according to the third embodiment of the present disclosure. Fig. 5 is a bottom view of the integral gland of the elastic light source gland according to the third embodiment of the present disclosure. As shown in FIG. 4 and FIG. 5 , the integral gland 310 is rectangular, and each side thereof is provided with a positioning hole 312 ; its material is plastic, enamel or ceramics.

The bow-shaped elastic piece 330 is an elastic element with elastic cushioning capacity, and can also be a spring or a C-shaped elastic piece; the elastic element is made of non-metal or metal elastic material, such as rubber, polyurethane and spring steel.

The bow-shaped spring 330 is disposed at the positioning hole 312 , and the bow-shaped spring 330 is provided with a screw hole 311 , and the screw passes through the bow-shaped spring 330 and the integral gland 310 .

The connection form of the bow-shaped elastic piece 330 and the integral gland 310 is interference fit, sticking or fixing with screws.

So far, the introduction of the elastic LED light source cover of the third embodiment of the present disclosure is completed.

So far, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the utility model elastic LED light source gland.

It should be noted that, in the accompanying drawings or in the text of the specification, implementations that are not shown or described are forms known to those of ordinary skill in the art, and are not described in detail. In addition, the above definitions of each element and method are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and those skilled in the art can easily modify or replace them.

In summary, the present disclosure provides an elastic LED light source gland, including an upper gland, a lower gland, and an elastic element, wherein one end of the elastic element is connected to the upper gland, and the other end is connected to the lower gland . When fixing the LED light source, the tightening force of the screw is transmitted to the elastic element through the upper gland, causing the deformation of the elastic element to generate elastic force, which is then transmitted to the lower gland, and finally evenly acts on the LED light source. The elastic LED light source gland of the present disclosure avoids the increase of interface thermal resistance and uneven force on the LED light source caused by improper tightening force control when the LED light source is directly fixed by screws or by a light source gland without elastic elements. The internal structure of the light source chip is deformed or even damaged.

It should also be noted that the directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", etc., are only referring to the directions of the drawings, not Used to limit the protection scope of this disclosure. Throughout the drawings, the same elements are indicated by the same or similar reference numerals. Conventional structures or constructions are omitted when they may obscure the understanding of the present disclosure.

And the shape and size of each component in the figure do not reflect the actual size and proportion, but only illustrate the content of the embodiment of the present disclosure. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.

Words such as "first", "second", "third" and the like used in the description and claims to modify the corresponding elements do not in themselves mean that the elements have any ordinal numbers, nor The use of these ordinal numbers to represent the order of one element with another element or the order of manufacturing methods is only used to clearly distinguish one element with a certain designation from another element with the same designation.

Similarly, it should be appreciated that in the above description of exemplary embodiments of the disclosure, in order to streamline the disclosure and to facilitate an understanding of one or more of the various disclosed aspects, various features of the disclosure are sometimes grouped together into a single embodiment, figure or its description. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed disclosure requires more features than are expressly recited in each claim. Rather, as the following claims reflect, disclosed aspects lie in less than all features of a single foregoing disclosed embodiment. Thus the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this disclosure.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present disclosure in detail. It should be understood that the above descriptions are only specific embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included within the protection scope of the present disclosure.

Claims (12)

1. A flexible LED light source gland, characterized in that it comprises: An upper gland (110), the upper gland (110) is provided with a first screw hole (111) for fixing the elastic light source gland; A lower gland (120), the lower gland (120) is provided with a gap (121), used for welding the positive and negative solder joints of the LED light source; and One end of the first elastic element (130) is connected with the upper gland (110), and the other end is connected with the lower gland (120). 2. The flexible LED light source gland according to claim 1, characterized in that: When fixing the LED light source, the tightening force of the screw is transmitted to the first elastic element (130) through the upper gland (110), causing the deformation of the first elastic element (130) to generate an elastic force, which is then transmitted to the The lower pressing cover (120) finally evenly acts on the LED light source. 3. The flexible LED light source gland according to claim 1, characterized in that, The connection form of the first elastic element (130) with the upper gland (110) and the lower gland (120) is interference fit, sticking or fixing with screws. 4. The elastic LED light source gland according to any one of claims 1-3, characterized in that, The material of the upper gland (110) and the lower gland (120) is plastic, enamel or ceramics. 5. The flexible LED light source gland according to claim 1, characterized in that: The upper gland and the lower gland are integrated into one gland (310), and the elastic LED light source gland includes: An integral gland (310), with positioning holes (312) arranged on its side; and The second elastic element (330), which is arranged at the positioning hole (312), the second elastic element (330) is provided with a second screw hole (311), and the screw passes through the second elastic element (330) ) and the integral gland (310). 6. The elastic LED light source gland according to claim 5, characterized in that, When fixing the LED light source, the tightening force of the screw is transmitted to the integral gland (310) through the second elastic element (330), and finally evenly acts on the LED light source. 7. The elastic LED light source gland according to claim 5, characterized in that: The connection form between the second elastic element (330) and the integral gland (310) is interference fit, sticking or fixing with screws. 8. The elastic LED light source gland according to any one of claims 5-7, characterized in that, The material of the integral gland (310) is plastic, enamel or ceramics. 9. The flexible LED light source gland according to claim 1, characterized in that: The first elastic element is a spring, a C-shaped shrapnel or a bow-shaped shrapnel. 10. The elastic LED light source gland according to claim 5, characterized in that: The second elastic element is a spring, a C-shaped shrapnel or a bow-shaped shrapnel. 11. The flexible LED light source gland according to claim 1, characterized in that: The material of the first elastic element is rubber, polyurethane or spring steel. 12. The flexible LED light source gland according to claim 5, characterized in that: The material of the second elastic element is rubber, polyurethane or spring steel.