CN220103947U - Silicone grease thickness detection device - Google Patents

Abstract

The utility model discloses a silicone grease thickness detection device, which comprises a base and a pressing piece, wherein a bearing block and a probe are arranged on the base, the bearing blocks are arranged at intervals, the bearing surfaces of the bearing blocks are positioned on the same plane to form a reference surface, the probe and the bearing blocks are arranged at intervals, and a height difference is formed between the tip of the probe and the reference surface; the pressing piece is provided with a pressing surface; after the heat radiation module is placed on the bearing surface and the heat conduction silicone grease is opposite to the probe, pressure is applied to the pressing piece so that the pressing surface presses down the heat radiation module, so that the heat conduction silicone grease can contact the probe to form a pin mark on the probe, and whether the thickness of the heat conduction silicone grease meets the requirement is judged by confirming the pin mark on the heat conduction silicone grease.

Description

Silicone grease thickness detection device

Technical Field

The utility model relates to the technical field of thickness measurement, in particular to a silicone grease thickness detection device capable of rapidly measuring the thickness of heat-conducting silicone grease of a heat dissipation module.

Background

The heat conducting silicone grease is used to fill the gap between CPU and heat sink and to make heat conduction smoother and faster, so the silicone grease consumption in the area directly affects the heat dissipation performance of the heat sink.

Referring to fig. 1A-1B, after the heat-conducting silicone grease is applied to the heat sink, the thickness of the heat-conducting silicone grease area on the heat sink needs to be detected. The existing detection mode in the control of the production process of the radiating fins is to use a altimeter for measurement. However, since the heat conductive silicone grease is viscous, the heat conductive silicone grease after coating is in a grease state, so that the measurement difference is large, and a plurality of measurement points need to be selected for measurement, resulting in low inspection efficiency.

Therefore, it is necessary to provide a silicone grease thickness detection device capable of rapidly checking the thickness of the heat conductive paste region to solve the above-described problems.

Disclosure of Invention

The utility model aims to provide a silicone grease thickness detection device capable of rapidly detecting the thickness of a heat conduction paste area.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the thickness detection device of silicone grease is used for detecting the thickness of the heat-conducting silicone grease of the heat radiation module and comprises a base and a pressing piece; the base is provided with bearing blocks and probes, the bearing blocks are arranged at intervals, the bearing surfaces of the bearing blocks are positioned on the same plane to form a reference surface, the probes and the bearing blocks are arranged at intervals, and a height difference is formed between the tip of each probe and the reference surface; the pressing piece is provided with a pressing surface; when the heat radiation module is placed on the bearing surface and the heat conduction silicone grease is opposite to the probe, pressure is applied to the pressing piece so that the pressing surface presses down the heat radiation module, and therefore the heat conduction silicone grease can contact the probe to form a pin print on the probe.

Preferably, the base is provided with at least two bearing blocks, and each bearing block is arranged at intervals.

Preferably, the base is provided with two bearing blocks, and the two bearing blocks are symmetrically arranged.

Preferably, each bearing block comprises a first bearing part and a second bearing part, the two second bearing parts are connected with two ends of the first bearing part in parallel, and the second bearing parts of the two bearing blocks extend in opposite directions.

Preferably, the base is provided with a plurality of probes, the probes are arranged at intervals, and the tips of the probes are located at the same height.

Preferably, the plurality of probes are arranged in the area surrounded by the bearing blocks at intervals, and the maximum outer diameter of the area surrounded by the plurality of probes is smaller than or equal to the outer diameter of the pressing surface.

Preferably, the pressing piece comprises a pressing head and a pressing rod, the pressing rod is connected to the upper end of the pressing head, and the pressing surface is arranged at the lower end of the pressing head.

Preferably, the silicone grease thickness detection device further comprises a transverse bracket, the transverse bracket protrudes above the base, the pressing rod is slidably connected to the lower portion of the transverse bracket, or the pressing rod is fixed to the transverse bracket, and the pressing piece is driven to move up and down through the transverse bracket.

Preferably, a sliding connection portion is disposed below the transverse bracket, the pressing rod is slidably connected to the sliding connection portion, and the transverse bracket can limit the upward moving distance of the pressing rod.

Preferably, the silicone grease thickness detection device further comprises a stand, wherein the stand is fixed on the base and protrudes upwards, and the transverse support is fixed on the stand or connected with the stand in a sliding manner.

Compared with the prior art, the silicone grease thickness detection device is provided with the base and the pressing piece, the base is provided with the bearing blocks and the probes, the bearing blocks are arranged at intervals, the bearing surfaces of the bearing blocks are positioned in the same plane to form the reference surface, the probes are arranged at intervals with the bearing blocks, and the needle tips of the probes have a height difference with the reference surface; the pressing piece is provided with a pressing surface; when the heat dissipation module is placed on the bearing surface and the heat conduction silicone grease is opposite to the probe, pressure is applied to the pressing piece so that the pressing surface presses down the heat dissipation module, so that the heat conduction silicone grease can contact the probe to form a pin mark on the probe, and whether the thickness of the heat conduction silicone grease meets the requirement is judged by confirming the pin mark on the heat conduction silicone grease, so that each detection is carried out only by placing a product on the bearing block and pressing the pressing piece, the operation is convenient, the time is saved, the mass inspection is realized, the detection efficiency is improved, the measurement error is reduced, and the detection precision is improved.

Drawings

Fig. 1A is a schematic diagram of a prior art heat sink without heat conductive silicone grease applied thereto.

Fig. 1B is a schematic diagram of a prior art heat sink coated with a thermally conductive silicone grease.

FIG. 2 is a schematic diagram of the silicone grease thickness detection device of the present utility model.

Fig. 3 is a schematic view of the base of fig. 2 at another angle.

Fig. 4 is a cross-sectional view of fig. 3.

FIG. 5 is a schematic view showing the use state of the silicone grease thickness detection device of the present utility model.

Fig. 6 is a front view of fig. 5.

Fig. 7 is a side view of fig. 5.

Detailed Description

Embodiments of the present utility model will now be described with reference to the drawings, wherein like reference numerals represent like elements throughout. It should be noted that, the description of the azimuth direction, such as the azimuth or the positional relationship indicated by the upper, lower, left, right, front, rear, etc. related to the present utility model is based on the azimuth or the positional relationship shown in the drawings, only for convenience of describing the technical solution of the present utility model and/or simplifying the description, and does not indicate or imply that the device or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model. First, second, etc. are described solely for distinguishing between technical features and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

Referring to fig. 2-7, the silicone grease thickness detection device 100 provided by the present utility model is mainly used for detecting the thickness of the heat conductive silicone grease 210 of the heat dissipation module 200. But is not limited thereto, and it can of course be used for thickness detection of other similar products.

With continued reference to fig. 2-7, the silicone grease thickness detection device 100 includes a base 110 and a pressing member 120. The base 110 is provided with a bearing block 111 and a probe 112, the bearing blocks 111 are arranged at intervals, the bearing surfaces 111a of the bearing blocks are located on the same plane to form a reference plane, the probe 112 and the bearing blocks 111 are arranged at intervals, the relative position between the bearing blocks is not particularly limited, and a height difference D is formed between the tip of the probe 112 and the bearing surface 111a, namely, a height difference D is formed between the tip of the probe 112 and the reference plane, as shown in fig. 4; the pressing member 120 has a pressing surface 121. Therefore, after the heat dissipation module 200 is placed on the carrying surface 111a and the heat-conducting silicone grease 210 is opposite to the probe 112, a pressure is applied to the pressing member 120 to press the pressing surface 121 down on the heat dissipation module 200, so that the heat-conducting silicone grease 210 can contact the probe 112 to form a pin mark thereon, and whether the thickness of the heat-conducting silicone grease 210 meets the requirement is determined by the pin mark on the heat-conducting silicone grease 210.

With continued reference to fig. 2-3, in the present utility model, at least two carrier blocks 111 and a plurality of probes 112 are disposed on the base 110. The bearing blocks 111 are arranged at intervals, bearing surfaces 111a of the bearing blocks 111 are located in the same plane, and the radiating module 200 is borne by the bearing blocks 111 in a dispersed mode, so that the radiating module 200 is stably supported and prevented from being inclined, and the accuracy of subsequent measurement is guaranteed. The plurality of probes 112 are arranged at intervals, the tips of the plurality of probes 112 are positioned at the same height, and the plurality of probes 112 are arranged, so that a plurality of positions of the heat-conducting silicone grease 210 can be measured at one time, the measurement result is more accurate, and the measurement efficiency is improved.

In a preferred embodiment of the present utility model, the plurality of probes 112 are disposed at intervals within the area surrounded by the carrier blocks 111, and the maximum outer diameter of the area surrounded by the plurality of probes 112 is smaller than or equal to the outer diameter of the pressing surface 121, so as to ensure that the positions of the heat conductive silicone grease 210 corresponding to the probes 112 can be pressed by the pressing surface 121, thereby preventing uneven stress on the heat conductive silicone grease 210 and improving the measurement effect.

With continued reference to fig. 2-3, in a specific embodiment of the present utility model, two bearing blocks 111 are disposed on the base 110, the two bearing blocks 111 are symmetrically disposed, and an area enclosed between the two bearing blocks 111 preferably corresponds to a size of the heat-conducting silicone grease 210 disposed on the heat-dissipating module 200 to be measured, so that, after the heat-dissipating module 200 is supported on the two bearing blocks 111, the heat-conducting silicone grease 210 protrudes into a space between the two bearing blocks 111, so as to facilitate thickness measurement.

In the present utility model, the specific shape of the bearing block 111 is not particularly limited, and may be any shape such as rectangular, square, circular, etc., which does not affect the realization of the function thereof. In a specific embodiment, each bearing block 111 preferably includes a first bearing portion 1111 and a second bearing portion 1112, which are strip-shaped, the two second bearing portions 1112 are connected to two ends of the first bearing portion 1111 in parallel, and the length of the two second bearing portions 1112 is smaller than the length of the first bearing portion 1111. When the two bearing blocks 111 are symmetrically installed, the second bearing portions 1112 of the two bearing blocks extend towards each other, so that a rectangular area is defined between the two bearing blocks 111.

With continued reference to fig. 3, in this embodiment, four probes 112 are provided, and four probes 112 are provided in the rectangular region and are provided near four corners of the rectangular region. More specifically, two probes 112 are disposed at end positions of the two second bearing portions 1112 near one bearing block 111, and two probes 112 are disposed on a straight line, correspondingly, two other probes 112 are disposed at end positions of the two second bearing portions 1112 near the other bearing block 111, and the two probes 112 are also disposed on a straight line. Meanwhile, the tips of the four probes 112 are located in the same plane.

Referring to fig. 4, in the present utility model, the thickness of the thermal grease 210 is detected using the height difference D between the probe 112 and the reference surface 111 a. Specifically, the height difference D between the tip of the probe 112 and the reference surface 111a is preferably the maximum tolerance thickness of the thermally conductive silicone grease 210, i.e., the difference between the minimum thickness allowed to be set by the thermally conductive silicone grease 210 and the standard thickness. In this way, when the height of the thermal grease 210 pressed down after the thermal grease 210 is carried on the carrying surface 111a of the carrying block 111 is equal to the maximum tolerance thickness, if the probe 112 can form a pin mark on the thermal grease 210, it is indicated that the thickness of the thermal grease 210 is satisfactory, and if the probe 112 cannot form a pin mark on the thermal grease 210, it is indicated that the thickness of the thermal grease 210 is insufficient.

In the present utility model, as shown in fig. 2 and fig. 5 to 7, the shape of the pressing member 120 is not particularly limited, as long as the outer diameter of the pressing surface 121 is equal to or larger than the outer diameter of the area surrounded by the four probes 112, so that the positions corresponding to the probes 112 can be pressed by the pressing surface 121, so as to ensure that the downward moving distances of the positions corresponding to the probes 112 are the same.

In one embodiment, the pressing member 120 includes a pressing head 122 and a pressing rod 123, the pressing rod 123 is connected to the upper end of the pressing head 122, the pressing surface 121 is disposed at the lower end of the pressing head 122, and the pressing head 122 may have a circular shape, a square shape, or the like, which is not limited herein. In this embodiment, the pressing bar 123 is set to facilitate the operation of pressing the pressing member 120 or lifting the pressing member 120.

It will be appreciated that even if the pressing rod 123 is not provided, it is equally possible to provide only the pressing head 122, which does not affect the function of the pressing member 120.

With continued reference to fig. 2 and fig. 5-7, in an embodiment of the utility model, the silicone grease thickness detection device 100 further includes a lateral bracket 130, where the lateral bracket 130 protrudes above the base 110, and the pressing rod 123 of the pressing member 120 is slidably connected to the lower portion of the lateral bracket 130, or the pressing rod 123 is fixed to the lateral bracket 130, and drives the pressing member 120 to move up and down through the lateral bracket 130.

In a specific embodiment, a sliding connection portion 131 is disposed below the lateral bracket 130, the sliding connection portion 131 is disposed at a distance from the bottom surface of the lateral bracket 130, the pressing rod 123 is slidably connected to the sliding connection portion 131, the pressing rod 123 can move up and down along the sliding connection portion 131, and the pressing rod 123 can abut against the lateral bracket 130 when moving up, and the lateral bracket 130 is used to limit the upward movement stroke of the pressing rod 123.

In this embodiment, the silicone grease thickness detection device 100 further includes a stand 140, the stand 140 is fixed to the base 110 and protrudes upwards, the transverse support 130 is fixed to the top of the stand 140, and the transverse support 130 extends horizontally above the base 110.

Of course, the transverse bracket 130 is not limited to the arrangement in the present embodiment. For example, in other embodiments, the transverse bracket 130 may be slidably connected to the stand 140 to limit the vertical sliding travel, and the pressing rod 123 may be fixed to the transverse bracket 130 to move the pressing member 120 up and down by the vertical sliding of the transverse bracket 130.

The measurement principle of the silicone grease thickness detection apparatus 100 according to the present utility model will be described with reference to fig. 2 to 7.

Firstly, the heat dissipation module 200 is positioned and mounted on the base 110 by using positioning columns, so that the heat dissipation module 200 is supported on the bearing blocks 111, and the heat conduction silicone grease 210 on the heat dissipation module 200 is located below and protrudes into the space between the bearing blocks 111, as shown in fig. 5-6.

Then, the pressing member 120 is pressed to slide down along the sliding connection portion 131, so that the pressing head 122 is pressed against the heat dissipating module 200, and the heat dissipating module 200 moves downward under pressure, so that the probe 112 will leave a pin mark on the heat conductive silicone 210 of the heat dissipating module 200.

After the heat dissipation module 200 is removed, it is determined whether the thickness of the heat conductive silicone grease 210 meets the design requirement by confirming the pin marks on the heat conductive silicone grease 210. Since the height difference D between the tip of the probe 112 and the reference surface 111a is set, if a pin mark is left on the heat-insulating silicone grease 210, it is indicated that the thickness of the heat-insulating silicone grease 210 is satisfactory, and if no pin mark is left on the heat-insulating silicone grease 210, it is indicated that the thickness of the heat-insulating silicone grease 210 is insufficient. According to the detection device, only the heat radiation module 200 is placed in the bearing block 111 for each detection, so that the operation is convenient, the time is saved, and the detection quality is improved.

In summary, since the silicone grease thickness detecting apparatus 100 of the present utility model is provided with the base 110 and the pressing member 120, and the base 110 is provided with the bearing blocks 111 and the probes 112, the bearing blocks 111 are spaced apart and the bearing surfaces 111a thereof are located in the same plane, the probes 112 are spaced apart from the bearing blocks 111, and a height difference D is provided between the tips of the probes 112 and the bearing surfaces 111 a; the pressing piece 120 is provided with a pressing surface 121; when the heat dissipation module 200 is placed on the bearing surface 111a and the heat conduction silicone grease 210 is opposite to the probe 112, pressure is applied to the pressing piece 120 to press the pressing surface 121 against the heat dissipation module 200, so that the probe 112 forms a pin print on the heat conduction silicone grease 210, and whether the thickness of the heat conduction silicone grease 210 meets the requirement is judged by confirming the pin print on the heat conduction silicone grease 210, so that each detection is performed by only placing a product on the bearing block 111 and pressing the pressing piece 120.

The heat dissipation module 200 and the arrangement of the heat conductive silicone grease 210 thereon according to the present utility model are all conventional manners known to those skilled in the art, and will not be described in detail herein.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the scope of the claims, which follow, as defined in the claims.

Claims (10)

1. The utility model provides a silicone grease thickness detection device for detect heat conduction silicone grease's of heat dissipation module thickness, its characterized in that includes:

the probe comprises a base, wherein a bearing block and a probe are arranged on the base, the bearing blocks are arranged at intervals, the bearing surfaces of the bearing blocks are positioned on the same plane to form a reference surface, the probe and the bearing block are arranged at intervals, and a height difference is formed between the tip of the probe and the reference surface;

a pressing member having a pressing surface;

when the heat radiation module is placed on the bearing surface and the heat conduction silicone grease is opposite to the probe, pressure is applied to the pressing piece so that the pressing surface presses down the heat radiation module, and therefore the heat conduction silicone grease can contact the probe to form a pin print on the probe.

2. The silicone grease thickness detection device according to claim 1, wherein the base is provided with at least two bearing blocks, and each bearing block is arranged at intervals.

3. The silicone grease thickness detection device according to claim 2, wherein the base is provided with two bearing blocks, and the two bearing blocks are arranged symmetrically.

4. A silicone grease thickness detection apparatus according to claim 3, wherein each of the bearing blocks comprises a first bearing portion and a second bearing portion, the two second bearing portions are connected in parallel to two ends of the first bearing portion, and the second bearing portions of the two bearing blocks extend in opposite directions.

5. The silicone grease thickness detection device according to any one of claims 1-4, wherein the base is provided with a plurality of the probes, the plurality of the probes are arranged at intervals, and the tips of the plurality of the probes are positioned at the same height.

6. The silicone grease thickness detection device according to claim 5, wherein the plurality of probes are disposed at intervals within an area surrounded by the carrier blocks, and a maximum outer diameter of the area surrounded by the plurality of probes is smaller than or equal to an outer diameter of the pressing surface.

7. The silicone grease thickness detection apparatus according to any one of claims 1-4, wherein the pressing member comprises a pressing head and a pressing lever, the pressing lever is connected to an upper end of the pressing head, and a lower end of the pressing head is provided with the pressing surface.

8. The silicone grease thickness detection device according to claim 7, further comprising a transverse bracket protruding above the base, wherein the pressing rod is slidably connected below the transverse bracket, or the pressing rod is fixed to the transverse bracket, and the pressing member is driven to move up and down by the transverse bracket.

9. The silicone grease thickness detection device according to claim 8, wherein a sliding connection portion is provided below the lateral support, the pressing rod is slidably connected to the sliding connection portion, and the lateral support can limit a distance that the pressing rod moves upward.

10. The silicone grease thickness detection device of claim 8, further comprising a stand fixed to the base and projecting upwardly, the lateral support being fixed to the stand or slidably connected to the stand.