Printing steel mesh structure and module structure

Abstract

The utility model discloses a printing steel mesh structure and a module structure.The printing steel mesh structure comprises a steel mesh, a steel mesh positioning assembly, a first fastener and a second fastener, the first fastener and the second fastener are located on the two sides of the first positioning piece, the steel mesh is used for coating materials, and the steel mesh positioning assembly comprises the first positioning piece and the second positioning piece; one surface of the first positioning piece faces the circuit board, the steel mesh is arranged between the first positioning piece and the second positioning piece, the first positioning piece comprises a connecting hole, the first fastening piece and the second fastening piece face the circuit board, and the first fastening piece and the second fastening piece penetrate through the connecting hole and are connected with the second positioning piece. According to the technical scheme, the dismounting and mounting efficiency of the printing steel mesh structure is improved, and the steel mesh positioning accuracy is improved.

Description

Technical Field

[0001] This application relates to the field of power module technology, and in particular to a printed steel mesh structure and module structure. Background Technology

[0002] In related technologies, the disassembly of printed stencil structures is often cumbersome when coating them with materials. Each disassembly and reassembly requires operation from the back of the circuit board. Operators need to lift the circuit board and hold the printed stencil structure while removing the fixing screws from the back of the circuit board, resulting in low disassembly and reassembly efficiency of the printed stencil structure. Utility Model Content

[0003] This application provides a printed stencil structure and a module structure, which can improve the assembly and disassembly efficiency of the printed stencil structure and improve the accuracy of stencil positioning.

[0004] In a first aspect, embodiments of this application provide a printed stencil structure, the printed stencil structure including: a stencil, a stencil positioning component, and a first fastener and a second fastener located on both sides of a first positioning member. The stencil is used to coat material. The stencil positioning component includes a first positioning member and a second positioning member. The stencil is disposed between the first positioning member and the second positioning member. The first positioning member includes a connecting hole. The first fastener and the second fastener are respectively disposed facing the circuit board. The first fastener and the second fastener respectively pass through the connecting hole and are connected to the second positioning member.

[0005] The technical solution of this application sets a steel mesh positioning component in the printed steel mesh structure. The steel mesh positioning component includes a first positioning element and a second positioning element. The steel mesh is set between the first positioning element and the second positioning element. The steel mesh positioning component can position the steel mesh. The first positioning element includes a connecting hole. The first fastener and the second fastener are respectively set towards the circuit board. The first fastener and the second fastener pass through the connecting hole and are connected to the second positioning element. This helps to improve the accuracy of steel mesh positioning and facilitates the subsequent coating of materials on the steel mesh.

[0006] According to the aforementioned embodiments of the first aspect of this application, the printed stencil structure further includes: a movable member movably connected between the first positioning member and the second positioning member. The movable member includes a movable end having a first position and a second position. In the first position, the movable end moves to a position away from the connecting hole, separating from the connecting hole; in the second position, the movable end connects to the connecting hole. In the above embodiments, by providing a movable member with a movable end in the printed stencil structure, when the printed stencil structure needs to be installed, the movable end moves to the second position. The mating connection between the movable end and the connecting hole allows the printed stencil structure to be installed on the target module. The mating connection between the movable end and the connecting hole facilitates direct installation or removal from the front of the printed stencil structure, improving the installation and removal efficiency of the printed stencil structure. When the printed stencil structure does not need to be installed, such as when coating the stencil with material, the movable end moves to the first position to avoid affecting the coating material on the stencil.

[0007] According to the aforementioned embodiments of the first aspect of this application, the second positioning member includes a guide channel, and the movable member includes a main body and a guide pin. The guide pin and the movable end are respectively located on opposite sides of the main body. The guide pin is movably disposed within the guide channel, and the movable end can switch between a first position and a second position.

[0008] According to the aforementioned embodiment of the first aspect of this application, the main body has a first part and a second part that are connected to each other, the movable end is located in the first part, the guide pin is located in the second part, and the first part and the second part are bent together.

[0009] According to the aforementioned embodiment of the first aspect of this application, the connecting hole is an oblong hole, and an adjustable connecting space is formed between the movable end and the connecting hole.

[0010] According to the aforementioned embodiments of the first aspect of this application, the first positioning member includes at least one positioning boss, and the connecting hole is located on the positioning boss. The second positioning member includes two sub-positioning members arranged symmetrically vertically, with a first gap between the two sub-positioning members, and the positioning boss is engaged within the first gap.

[0011] According to the aforementioned embodiment of the first aspect of this application, the positioning boss has a third portion and a fourth portion that are interconnected, and a connecting hole is located in the third portion. In a first position, the movable end moves to the fourth portion; in a second position, the movable end is located in the third portion and connected to the connecting hole.

[0012] According to the aforementioned embodiment of the first aspect of this application, the steel mesh has a second gap, which is matched and connected to the positioning boss.

[0013] Secondly, embodiments of this application provide a module structure, which includes: a circuit board, a printed stencil structure according to any of the foregoing embodiments of the first aspect of this application, and a heat sink. The circuit board has multiple modules, the printed stencil structure is mounted on the modules, and the heat sink is mounted on the modules.

[0014] This application's technical solution incorporates a printed stencil structure within a module structure. This stencil structure includes a stencil positioning component, comprising a first positioning element and a second positioning element. The stencil is positioned between these two elements. The positioning component effectively positions the stencil, improving its accuracy and facilitating subsequent material coating. By incorporating a movable element with a movable end within the printed stencil structure, the movable end moves to a second position when installation is required. The mating connection between the movable end and a connecting hole allows the stencil structure to be installed onto the target module. This mating connection facilitates direct installation and removal from the front of the stencil structure, improving its assembly and disassembly efficiency. When installation is not required, such as during material coating, the movable end moves to a first position to avoid affecting the coating material.

[0015] According to the aforementioned embodiments of the second aspect of this application, the module structure further includes: a positioning fixture, a circuit board mounted on the positioning fixture, the positioning fixture including a first connecting portion, and a printed stencil structure capable of being connected to the first connecting portion to position the printed stencil structure on the positioning fixture.

[0016] According to the aforementioned embodiments of the second aspect of this application, the positioning fixture further includes a second connecting portion, and the circuit board can be connected to the second connecting portion to mount the circuit board onto the positioning fixture. Attached Figure Description

[0017] Figure 1 This is a front view of an embodiment of the printed stencil structure of this application;

[0018] Figure 2 This is a side view of an embodiment of the printed steel mesh structure of this application;

[0019] Figure 3 This is a rear view of an embodiment of the printed stencil structure of this application;

[0020] Figure 4 This is a schematic diagram of the moving parts in one embodiment of the printed stencil structure of this application;

[0021] Figure 5 This is an exploded view of a portion of the structure of one embodiment of the module structure of this application;

[0022] Figure 6This is a schematic diagram of a printed steel mesh structure installed on a module in one embodiment of the module structure of this application;

[0023] Figure 7 This is a schematic diagram of the module structure in one embodiment of the module structure of this application.

[0024] Explanation of icon numbers:

[0025] Stainless steel mesh - 100, stainless steel mesh positioning assembly - 200, moving parts - 300, circuit board - 400, heat sink - 500, positioning fixture - 600;

[0026] Second gap-110, first positioning component-210, second positioning component-220, movable end-310, main body-320, guide pin-330, first fastener-340, second fastener-350, module-410, first mounting hole-420, first connecting part-610, second connecting part-620.

[0027] Connecting hole-211, positioning boss-212, guide channel-221, sub-positioning component-222, first gap-223, first part-321, second part-322, second mounting hole-411, PIN pin-412, positioning ear-413.

[0028] Part 3-2121, Part 4-2122. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0032] This application provides a printed stencil structure and a module structure, which can improve the assembly and disassembly efficiency of the printed stencil structure and improve the accuracy of stencil positioning.

[0033] like Figures 1 to 2 As shown, this application embodiment provides a printed stencil structure, which includes: a stencil 100, a stencil positioning component 200, and a first fastener 340 and a second fastener 350 located on both sides of the first positioning component 210. Figures 1 to 3 As shown, the steel mesh 100 is used for coating materials. Preferably, the steel mesh 100 has a thickness of 0.1 mm and is made of stainless steel. The steel mesh positioning assembly 200 is used to position the steel mesh 100. The steel mesh positioning assembly 200 includes a first positioning member 210 and a second positioning member 220, and the steel mesh 100 is disposed between the first positioning member 210 and the second positioning member 220. Figures 2 to 3 As shown, the printed stencil structure also includes a movable component 300. The movable component 300 is movably connected between the first positioning component 210 and the second positioning component 220. The stencil 100, the first positioning component 210, and the second positioning component 220 are connected via the movable component 300. The first positioning component 210 includes a connecting hole 211. The first fastener 340 and the second fastener 350 are respectively positioned facing the circuit board 400, and respectively pass through the connecting hole 211 and are connected to the second positioning component 220.

[0034] like Figure 4 As shown, the movable component 300 is movably connected between the first positioning component 210 and the second positioning component 220. The movable component 300 includes a movable end 310 having a first position and a second position. In the first position, the movable end 310 moves to a position away from the connecting hole 211, and the movable end 310 is separated from the connecting hole 211. In the second position, the movable end 310 is connected to the connecting hole 211, so that the printed stencil structure can be installed on the target module 410.

[0035] The technical solution of this application provides a stencil positioning component 200 in a printed stencil structure. The stencil positioning component 200 includes a first positioning element 210 and a second positioning element 220. The stencil 100 is disposed between the first positioning element 210 and the second positioning element 220. The stencil positioning component 200 can position the stencil 100. The first positioning element includes a connecting hole. The first fastener and the second fastener are respectively positioned facing the circuit board. The first fastener and the second fastener pass through the connecting hole and are connected to the second positioning element. This helps to improve the positioning accuracy of the stencil 100 and facilitates the subsequent coating of materials on the stencil 100. By incorporating a movable component 300 with a movable end 310 within the printed stencil structure, when the printed stencil structure needs to be installed, the movable end 310 moves to a second position. The mating connection between the movable end 310 and the connecting hole 211 allows the printed stencil structure to be installed onto the target module 410. This mating connection facilitates direct installation or removal from the front of the printed stencil structure, improving its assembly and disassembly efficiency and ensuring stable positioning and convenient installation of the stencil 100. When the printed stencil structure is not needed, such as when coating the stencil 100 with material, the movable end 310 moves to a first position, preventing any impact on the coating material and ensuring its uniformity.

[0036] like Figure 4 As shown, the first fastener 340 and the second fastener 350 are located at the movable end 310. In the first position, the first fastener 340 and the second fastener 350 are separated from the connecting hole 211; in the second position, the first fastener 340 and the second fastener 350 are connected to the connecting hole 211, allowing the printed stencil structure to be installed on the target module 410. Preferably, the first fastener 340 and the second fastener 350 are connecting nuts, which can be matched and connected to the connecting hole 211. The connecting nuts and connecting holes 211 can be directly matched and connected or separated from the front of the printed stencil structure, allowing the printed stencil structure to be installed or removed from the target module 410. The matching connection between the connecting nut and the connecting hole 211 helps to improve the efficiency of the installation and removal of the printed stencil structure, and also helps to achieve stable positioning and convenient installation of the stencil 100.

[0037] like Figure 3 As shown, the second positioning component 220 includes a guide channel 221, and the movable component 300 includes a main body 320 and a guide pin 330. The guide pin 330 and the movable end 310 are located on opposite sides of the main body 320. The guide pin 330 is movably disposed within the guide channel 221, so that the movable end 310 can switch between a first position and a second position. The cooperative design between the guide channel 221 and the guide pin 330 enhances the operability and positioning accuracy of the movable component 300, and improves the efficiency of installation and disassembly.

[0038] like Figure 4 As shown, the main body 320 has a first part 321 and a second part 322 that are connected to each other. The movable end 310 is located in the first part 321, and the guide pin 330 is located in the second part 322. The first part 321 and the second part 322 are bent together. Preferably, the first part 321 and the second part 322 are L-shaped together, which is conducive to better adapting to the installation angle of the steel mesh positioning component 200, facilitating the switching of the movable part 300 between the first position and the second position, avoiding the movable end 310 from affecting the coating material on the steel mesh 100, and improving the overall assembly flexibility.

[0039] Preferably, the connecting hole 211 is an oblong hole, and an adjustable connection space can be formed between the movable end 310 and the connecting hole 211. The connection position between the movable end 310 and the connecting hole 211 can be adjusted according to the steel mesh of different sizes, which can adapt to steel mesh of different sizes and improve the adaptability of the printed steel mesh structure.

[0040] like Figure 3 As shown, the first positioning member 210 includes at least one positioning boss 212, and the connecting hole 211 is located on the positioning boss 212. Preferably, the second positioning member 220 includes two sub-positioning members 222 arranged symmetrically above and below, each sub-positioning member 222 being U-shaped. A first gap exists between the two sub-positioning members 222, and the first positioning member 210 includes two positioning bosses 212, which are correspondingly engaged within the two first gaps 223. The steel mesh 100 has a second gap 110, which is matched and connected to the positioning bosses 212 to position the steel mesh 100 within the steel mesh positioning assembly 200. In the above embodiment, by providing positioning bosses 212 on the first positioning member 210, and the steel mesh 100 having a second gap 110, which is matched and connected to the positioning bosses 212 to position the steel mesh 100 within the steel mesh positioning assembly 200, it is convenient to position the steel mesh 100, which is beneficial for achieving stable positioning of the steel mesh 100. By setting the second positioning element 220, which includes two sub-positioning elements 222 arranged symmetrically above and below, and a first gap 223 between the two sub-positioning elements 222, the positioning boss 212 can be locked in the first gap 223, which is beneficial to make the thickness of the coating material on the steel mesh 100 uniform.

[0041] like Figure 3As shown, the positioning boss 212 has a third part 2121 and a fourth part 2122 that are connected to each other on the left and right sides, and the connecting hole 211 is located in the third part 2121. In the first position, the movable end 310 moves to the fourth part 2122 to avoid affecting the coating material on the steel mesh 100 and to ensure the uniformity of the coating material. In the second position, the movable end 310 is located in the third part 2121 and connected to the connecting hole 211, which is beneficial for direct installation or disassembly from the front of the printed steel mesh structure, thereby improving the efficiency of the installation and disassembly of the printed steel mesh structure and facilitating the stable positioning and convenient installation of the steel mesh 100.

[0042] like Figure 5 As shown, this application provides a module structure, which includes: a circuit board 400, a printed stencil structure according to any of the foregoing embodiments of this application, and a heat sink 500. The circuit board 400 has a plurality of modules 410 arranged sequentially, the printed stencil structure is mounted on the module 410, and the heat sink 500 is mounted on the module 410. Figures 1 to 3 As shown, the printed stencil structure includes: a stencil 100, a stencil positioning assembly 200, and a first fastener 340 and a second fastener 350 located on both sides of a first positioning member 210. The stencil 100 is used for coating material. The stencil positioning assembly 200 is used to position the stencil 100, and includes a first positioning member 210 and a second positioning member 220, with the stencil 100 disposed between the first positioning member 210 and the second positioning member 220. The first positioning member 210 includes a connecting hole 211. The first fastener 340 and the second fastener 350 are respectively positioned facing the circuit board 400, and the first fastener 340 and the second fastener 350 respectively pass through the connecting hole 211 and are connected to the second positioning member 220.

[0043] The technical solution of this application sets a printed steel mesh structure in the module structure. The printed steel mesh structure has a steel mesh positioning component 200. The steel mesh positioning component 200 includes a first positioning member 210 and a second positioning member 220. The steel mesh 100 is disposed between the first positioning member 210 and the second positioning member 220. The steel mesh positioning component 200 can position the steel mesh 100. The first positioning member 210 includes a connecting hole 211. The first fastener 340 and the second fastener 350 are respectively set towards the circuit board 400. The first fastener 340 and the second fastener 350 respectively pass through the connecting hole 211 and are connected to the second positioning member 220, which helps to improve the positioning accuracy of the steel mesh 100 and facilitates the subsequent coating of materials on the steel mesh 100.

[0044] like Figures 5 to 6As shown, the module structure also includes: a positioning fixture 600, on which the circuit board 400 is mounted. The positioning fixture 600 includes a first connecting part 610, to which the printed stencil structure can be connected to the first connecting part 610 to position the printed stencil structure on the positioning fixture 600. This improves the accuracy of the printed stencil structure's positioning on the circuit board 400 and facilitates the installation and removal of the printed stencil structure. The positioning fixture 600 also includes a second connecting part 620, to which the circuit board 400 can be connected to the second connecting part 620 to mount the circuit board 400 on the positioning fixture 600. Specifically, the first connecting part 610 and the second connecting part 620 are connecting studs. The first connecting part 610 can be matched and connected with the connecting hole 211 and the connecting piece 340 to mount and position the printed stencil structure on the circuit board 400.

[0045] like Figure 5 As shown, the circuit board 400 has a first mounting hole 420, such as Figure 7 As shown, module 410 has four second mounting holes 411 that can be matched and connected to the first mounting hole 420. The first mounting holes 420 and the second mounting holes 411 are connected by screws to mount module 410 onto circuit board 400. Then, PIN pins 412 are soldered to circuit board 400. Figure 7 As shown, module 410 has a positioning ear 413, and heat sink 500 is connected to positioning ear 413 to install heat sink 500 on module 410.

[0046] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A printing screen structure, characterized in that The printed steel mesh structure comprises: a steel mesh (100) for coating material; a steel mesh positioning assembly (200) comprising a first positioning member (210) and a second positioning member (220), one side of the first positioning member (210) is arranged towards a circuit board, the steel mesh (100) is arranged between the first positioning member (210) and the second positioning member (220), the first positioning member (210) comprises a connecting hole (211); and a first fastener (340) and a second fastener (350) arranged on both sides of the first positioning member (210), the first fastener (340) and the second fastener (350) are arranged towards the circuit board respectively, and the first fastener (340) and the second fastener (350) pass through the connecting hole (211) and are connected with the second positioning member (220) respectively.

2. The printing screen structure of claim 1, wherein The printed steel mesh structure further comprises: a movable member (300) movably connected between the first positioning member (210) and the second positioning member (220), the movable member (300) comprises a movable end (310) having a first position and a second position, in the first position, the movable end (310) is moved to a position away from the connecting hole (211), and the movable end (310) is separated from the connecting hole (211); in the second position, the movable end (310) is connected with the connecting hole (211).

3. The printing screen structure of claim 2, wherein The second positioning member (220) comprises a guide channel (221), and the movable member (300) comprises: a main body (320); and a guide pin (330) arranged on opposite sides of the main body (320) with the movable end (310) respectively, the guide pin (330) is movably arranged in the guide channel, and the movable end (310) is switched between the first position and the second position.

4. The printing screen structure of claim 3, wherein The main body (320) has a first part (321) and a second part (322) connected with each other, the movable end (310) is located in the first part (321), the guide pin (330) is located in the second part (322), and the first part (321) and the second part (322) are arranged in a bent manner.

5. The printing screen structure of claim 2, wherein The connecting hole (211) is a waist-shaped hole, and a connecting space with adjustable size is formed between the movable end (310) and the connecting hole (211).

6. The printing screen structure of claim 3, wherein The first positioning member (210) comprises at least one positioning boss (212), and the connecting hole (211) is located in the positioning boss (212); The second positioning member (220) comprises two sub-positioning members (222) arranged symmetrically above and below, and the two sub-positioning members (222) have a first gap (223) therebetween, and the positioning boss (212) is clamped in the first gap (223).

7. The printing screen structure of claim 6, wherein The positioning boss (212) has a third part (2121) and a fourth part (2122) connected with each other, and the connecting hole (211) is located in the third part (2121); In the first position, the movable end (310) moves to the fourth part (2122); in the second position, the movable end (310) is located in the third part (2121) and connected with the connecting hole (211).

8. The printing screen structure of claim 6, wherein The steel mesh (100) has a second gap (110) which is matched and connected with the positioning boss (212).

9. A modular structure, characterized by The module structure comprises: a circuit board (400) having a plurality of modules (410) thereon; a printed steel mesh structure according to any one of claims 1 to 8, which is mounted on the module (410); and a heat dissipation member (500) mounted on the module (410).

10. The modular structure of claim 9, wherein, The module structure further comprises: a positioning tool (600) on which the circuit board (400) is mounted, and the positioning tool (600) comprises a first connecting part (610), and the printed steel mesh structure is connectable with the first connecting part (610) to position the printed steel mesh structure on the positioning tool (600).

11. The modular structure of claim 10, wherein, The positioning tool (600) further comprises a second connecting part (620), and the circuit board (400) is connectable with the second connecting part (620) to mount the circuit board (400) on the positioning tool (600).

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