Double-sided heat-conducting silicone grease coating tool for ceramic substrate

Abstract

The tool comprises a first carrier and a second carrier hinged to the edge of the first carrier, a plurality of windows matched with the ceramic substrate to be machined in size are arranged on the surfaces of the first carrier and the second carrier in a penetrating mode, the windows are provided with steel meshes, and the steel meshes are arranged on the surfaces of the first carrier and the second carrier in a penetrating mode. The positions of the plurality of windows respectively arranged on the first carrier are in one-to-one correspondence; the device is simple in structure and convenient to operate, when the first carrier and the second carrier are folded, the two sides of the to-be-processed ceramic substrate can be coated with heat-conducting silicone grease through the windows, the processing yield is improved, multiple pieces of heat-conducting silicone grease can be coated at the same time, and then the processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic substrate processing, in particular to a double-sided thermal conductive silicone grease coating tool for a ceramic substrate. Background Art

[0002] With the comprehensive promotion and application of household, industrial and commercial inverters, a large number of ceramic substrates are used as excellent insulating and thermally conductive media, which brings difficulties in applying thermal conductive silicone grease. At present, there are two schemes for coating ceramic substrates, one is manual coating and the other is automatic coating. When applying manually, it is mostly single-sided coating, which is inefficient. When applying automatically, it is mostly single-piece coating, which is also inefficient and requires manual placement.

[0003] Problems with existing manual coating technology:

[0004] 1) At present, manual double-sided coating of ceramic substrates requires coating one side and then manually turning the ceramic over to coat the other side, resulting in low coating efficiency and poor coating effect;

[0005] 2) Another solution is to coat one side of the ceramic substrate, install it on the radiator, and then coat the other side with silicone grease on the components. This method is too cumbersome, and some components are not easy to coat with silicone grease, and the coating tooling needs to be designed separately;

[0006] 3) Manual application often results in a waste of silicone grease. Utility Model Content

[0007] In view of the problems existing in the prior art, the utility model provides a double-sided thermal grease coating tool for ceramic substrates, which is used to solve at least one technical problem of low ceramic substrate coating efficiency, poor effect and waste in the prior related technology.

[0008] The utility model is realized by the following technical solutions:

[0009] A double-sided thermal grease coating tool for a ceramic substrate comprises a first carrier and a second carrier hinged to the edge of the first carrier. The surfaces of the first carrier and the second carrier are penetrated with a plurality of windows adapted to the size of the ceramic substrate to be processed, and the windows are all provided with steel meshes, and the positions of the plurality of windows respectively arranged on the first carrier and the second carrier correspond one to one.

[0010] Furthermore, the first carrier and the second carrier both include a supporting frame and a positioning plate, and the first carrier and the second carrier are hinged through their respective supporting frames;

[0011] The support frame is fixedly connected to the positioning plate, and the positioning plate is arranged on the approaching side and the distal side of the first carrier and the second carrier.

[0012] Furthermore, the support frame is provided with at least one reinforcing rib.

[0013] Furthermore, the supporting frames of the first carrier and the second carrier are hinged by a plurality of hinges, and a hinge shaft mechanism is also provided between the supporting frames of the first carrier and the second carrier.

[0014] Furthermore, the positioning plates are all provided with magnetic suction parts; and the side walls of the supporting frame are all provided with handles.

[0015] Furthermore, the handles respectively located on the two side walls of the supporting frame are arranged in a staggered manner.

[0016] Furthermore, it also includes a supporting device disposed at the bottom of the first carrier and the second carrier, the supporting device including a first supporting cavity disposed at the lower side of the first carrier, and a second supporting cavity disposed at the lower side of the second carrier;

[0017] The tops of the first supporting cavity and the second supporting cavity abut against the bottoms of the first carrier and the second carrier respectively.

[0018] Furthermore, a recovery box is provided inside the first supporting cavity and the second supporting cavity.

[0019] Furthermore, the windows are distributed in an array.

[0020] Furthermore, two stamping grooves are arranged opposite to each other on the edges of the window.

[0021] Compared with the prior art, the utility model has the following beneficial technical effects:

[0022] The utility model provides a double-sided thermal grease coating tool for a ceramic substrate, comprising a first carrier and a second carrier hinged to the edge of the first carrier, wherein the surfaces of the first carrier and the second carrier are penetrated with a plurality of windows adapted to the size of the ceramic substrate to be processed, the windows are both provided with steel meshes, and the positions of the plurality of windows respectively arranged on the first carrier and the second carrier correspond to each other one by one; the utility model has a simple structure and is easy to operate; when the first carrier and the second carrier are closed, the thermal grease can be coated on both sides of the ceramic substrate to be processed through the windows respectively, thereby improving the processing yield rate, and the thermal grease can be coated on a plurality of thermal greases at the same time, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a double-sided thermal grease coating tool for a ceramic substrate according to the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the utility model with a ceramic substrate placed thereon;

[0025] Figure 3This is a schematic diagram of the structure when the first carrier and the second carrier of the utility model are combined;

[0026] Figure 4 This is a side view of the first carrier and the second carrier of the utility model when they are combined.

[0027] In the figure: 10, first carrier; 11, second carrier; 30, window; 31, steel mesh; 16, support frame; 12, positioning plate; 17, reinforcing ribs; 40, hinge mechanism; 41, hinge; 50, magnetic element; 70, handle; 20, recovery box; 23, first support cavity; 25, second support cavity; 32, stamping groove; 13, support device. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings, which are intended to explain the present invention rather than to limit it.

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, products or devices.

[0031] For MOSFET power devices, the heat needs to be dissipated by a heat sink, and a ceramic substrate is used as an insulating thermal conductive medium. In order to reduce the contact thermal resistance of the contact surface, silicone grease needs to be coated on both sides of the ceramic substrate to reduce the thermal resistance in the heat transfer path.

[0032] Based on the above problems, the embodiment of the present application applies thermal conductive silicone grease on both sides of the ceramic substrate to achieve a good fit between the ceramic substrate and the MOS tube, and the other side achieves a good fit with the radiator, so as to reduce the thermal resistance of the MOS tube heat dissipation path and improve the heat dissipation capacity of the device.

[0033] Figure 1 and Figure 2 A double-sided thermal grease coating tool for a ceramic substrate according to an embodiment of the present disclosure is shown. Figure 1 and Figure 2 As shown, it includes a first carrier 10 and a second carrier 11 hinged to the edge of the first carrier 10, and the surfaces of the first carrier 10 and the second carrier 11 are penetrated with a plurality of windows 30 adapted to the size of the ceramic substrate to be processed, and the windows are all provided with steel meshes 31, and the positions of the plurality of windows respectively arranged on the first carrier 10 and the second carrier 10 correspond one to one.

[0034] Preferably, Figure 3 As shown, the first carrier 10 and the second carrier 11 both include a support frame 16 and a positioning plate 12, and the first carrier 10 and the second carrier 11 are hingedly connected through their respective support frames 16;

[0035] The support frame 16 is fixedly connected to the positioning plate 12 , and the positioning plate 12 is disposed on the approaching side and the distant side of the first carrier 10 and the second carrier 11 .

[0036] Specifically, the support frame 16 is a rectangular frame structure, and the support frame 16 is connected to the positioning plate 12 by brazing. In some embodiments, the support frame 16 also includes a support plate arranged near the positioning plate 12, and the support plate is brazed to the positioning plate 12. At the same time, a steel mesh 31 is arranged between the support plate and the positioning plate 12 to form a bearing area for the ceramic substrate to be processed. Specifically, by adjusting the thickness of the positioning plate 12, it can be adapted to the processing of ceramic substrates to be processed with different thicknesses. At the same time, it can also be adapted to the ceramic substrates to be processed with different coating areas by adjusting the shape of the coatable area of ​​the steel mesh 31; in other embodiments, that is, when there is no support plate, by adjusting the thickness of the positioning plate 12, that is, adjusting the depth of the window 30, it can be adapted to the ceramic substrates to be processed with different thicknesses. At the same time, it can also be adapted to the ceramic substrates to be processed with different coating areas by adjusting the shape of the coatable area of ​​the steel mesh 31.

[0037] Further in the present embodiment, the support frame 16 is provided with at least one reinforcing rib 17; specifically, the reinforcing rib 17 is used to improve the structural strength of the support frame 16 to prevent bending during the coating process, thereby causing uneven coating. The number of the reinforcing ribs 17 depends on the size area of ​​the first substrate 10 and the second substrate 11. At the same time, the window 31 is not provided in the area where the reinforcing ribs 17 are provided to avoid problems such as structural interference.

[0038] Further in this embodiment, Figure 4 As shown, the support frames 16 of the first carrier 10 and the second carrier 11 are hinged by a plurality of hinges 41, and a hinged shaft mechanism 40 is also provided between the support frames 16 of the first carrier 10 and the second carrier 11. Specifically, in the embodiment disclosed herein, there are two hinges 41, and the hinged shaft mechanism 40 includes a shaft and a sleeve, and the sleeves are staggered and fixed on the near side of the first carrier 10 and the second carrier 11, respectively, and the shaft can be rotatably inserted into the staggered sleeves. When the first carrier 10 and the second carrier 11 are close to or away from each other, the sleeves rotate around the shaft, and the first carrier 10 and the second carrier 11 can be fitted together through the hinges 41.

[0039] Further in the present embodiment, the positioning plates 12 are each provided with a magnetic attraction member 50; the side walls of the support frame 16 are each provided with a handle 70; it should be noted that in the present disclosed embodiment, the magnetic attraction members 50 respectively provided on the two positioning plates are provided in a one-to-one correspondence, and the first carrier 10 and the second carrier 11 are made to fit together through the hinge 41, so that the positioning plates 12 respectively located on the first carrier 10 and the second carrier 11 are attracted to each other through the magnetic attraction members 50, thereby playing a fixing role.

[0040] Furthermore, the handles 70 respectively located on the side walls of the two support frames 16 are arranged in a staggered manner so that the first carrier 10 and the second carrier 11 can be opened when the rotation and painting are completed.

[0041] Preferably, in the embodiment of the present disclosure, a supporting device 13 is further included, which is disposed at the bottom of the first carrier 10 and the second carrier 11. The supporting device 13 includes a first supporting cavity 23 disposed at the lower side of the first carrier 10, and a second supporting cavity 25 disposed at the lower side of the second carrier 11;

[0042] The tops of the first supporting cavity 23 and the second supporting cavity 25 respectively abut against the bottoms of the first carrier 10 and the second carrier 11 placed correspondingly thereon.

[0043] Furthermore, a recovery box 20 is provided inside the first support cavity 23 and the second support cavity 25; specifically, when the first carrier 10 and the second carrier 11 are turned over, and when the silicone grease is applied, it is easy to cause excess silicone grease to fall off, and the recovery box 20 can prevent the silicone grease from falling off and causing pollution and waste. When using it, you should first confirm that the inside of the recovery box 20 is clean, and the excess silicone grease collected after processing can be reused.

[0044] Preferably, in the embodiment of the present disclosure, the windows 30 are distributed in an array, so as to facilitate the application of silicone grease by those skilled in the art.

[0045] Preferably, in the embodiment of the present disclosure, two punching grooves 32 are arranged on the edges of the window 30, and the punching grooves 32 are convenient for taking the ceramic substrate after coating. When turning over the first carrier 10 and the second carrier 11, we usually only turn over the first carrier 10 or the second carrier 11. Therefore, in some embodiments, we only set the punching grooves 32 on the edges of the window 30 of the first carrier 10 or the second carrier 11. Further, as Figure 4 As shown, the size of the first carrier 10 provided with the pressing groove 32 is larger than the size of the second carrier 11 , which facilitates the positioning of the first carrier 10 and the second carrier 11 .

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A double-sided thermal grease coating tool for ceramic substrates, characterized in that: The invention comprises a first carrier (10) and a second carrier (11) hinged to the edge of the first carrier (10); a plurality of windows (30) adapted to the size of a ceramic substrate to be processed are arranged through the surfaces of the first carrier (10) and the second carrier (11); the windows are each provided with a steel mesh (31); and the plurality of windows respectively arranged on the first carrier (10) and the second carrier (11) correspond to each other in one-to-one manner.

2. The double-sided thermal grease coating tool for ceramic substrate according to claim 1, characterized in that: The first carrier (10) and the second carrier (11) both comprise a supporting frame (16) and a positioning plate (12), and the first carrier (10) and the second carrier (11) are hingedly connected via their respective supporting frames (16); The support frame (16) is fixedly connected to the positioning plate (12), and the positioning plate (12) is arranged on the approaching and distal sides of the first carrier (10) and the second carrier (11).

3. The double-sided thermal grease coating tool for ceramic substrate according to claim 2, characterized in that: The support frame (16) is provided with at least one reinforcing rib (17).

4. The double-sided thermal grease coating tool for ceramic substrate according to claim 2, characterized in that: The supporting frames (16) of the first carrier (10) and the second carrier (11) are hingedly connected via a plurality of hinges (41), and a hinge shaft mechanism (40) is also provided between the supporting frames (16) of the first carrier (10) and the second carrier (11).

5. The double-sided thermal grease coating tool for ceramic substrate according to claim 2, characterized in that: The positioning plates (12) are each provided with a magnetic attraction member (50); and the side walls of the supporting frame (16) are each provided with a handle (70).

6. The double-sided thermal grease coating tool for ceramic substrate according to claim 5, characterized in that: The handles (70) respectively located on the side walls of the two supporting frames (16) are arranged in a staggered manner.

7. The double-sided thermal grease coating tool for ceramic substrate according to claim 1, characterized in that: It also includes a supporting device (13) arranged at the bottom of the first carrier (10) and the second carrier (11), wherein the supporting device (13) includes a first supporting cavity (23) arranged at the bottom of the first carrier (10), and a second supporting cavity (25) arranged at the bottom of the second carrier (11); The tops of the first supporting cavity (23) and the second supporting cavity (25) abut against the bottoms of the first carrier (10) and the second carrier (11), respectively.

8. The double-sided thermal grease coating tool for ceramic substrate according to claim 7, characterized in that: A recovery box (20) is provided inside the first supporting cavity (23) and the second supporting cavity (25).

9. The double-sided thermal grease coating tool for ceramic substrate according to claim 1, characterized in that: The windows (30) are distributed in an array.

10. The double-sided thermal grease coating tool for ceramic substrate according to claim 1, characterized in that: Two punching grooves (32) are arranged opposite to each other at the edges of the window (30).

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