Zinc oxide pressure-sensitive ceramic resin encapsulation fixing hanger

Abstract

The utility model discloses a zinc oxide pressure sensitive ceramic resin encapsulation fixed hanger. The fixed hanger includes square frame, and the both sides of square frame length direction are equipped with a plurality of limiting holes, and are equipped with ceramic fixed clamp between both sides limiting hole, and the limiting hole of same side takes the center line of square frame length direction as starting point, and both sides limiting hole respectively presents the decreasing mode of equidifference series and extends distribution to both ends of square frame length direction, the utility model discloses easy operation can realize resin powder even diffusion, reduces the rework of leak encapsulation, can improve product quality and processing efficiency, and the fixed hanger structure of the utility model is simple, and the design is reasonable, and the practicality is strong, and the effect is remarkable, and is suitable for wide popularization and application.

Description

Technical Field

[0001] This utility model relates to a zinc oxide pressure-sensitive ceramic processing device, and in particular to a zinc oxide pressure-sensitive ceramic resin encapsulation and fixing bracket. Background Technology

[0002] Zinc oxide varistors are a type of thin-film functional ceramic. After undergoing many processes such as pressing, sintering, and mounting pins, their surfaces need to be encapsulated with resin materials.

[0003] Currently, the resin encapsulation method for zinc oxide varistors generally involves preheating the ceramic sheet and immersing it in a resin powder pool. The surface temperature of the ceramic sheet melts the resin powder, causing a layer of resin material to adhere to its surface. Then, it is heated at high temperature to cure, thereby forming a uniform resin layer on the surface of the ceramic sheet, thus completing the encapsulation process.

[0004] Throughout the entire encapsulation process described above, a dedicated mounting bracket is required. Only after the ceramic sheets are secured to the bracket can they be fed into the heating device and resin powder tank for heating and powder coating. The mounting bracket typically consists of ceramic clips for securing the ceramic sheets and a square frame for holding these clips. Several ceramic clips are usually arranged in a row on one of the square frames, and each clip holds multiple ceramic sheets, thereby improving processing efficiency.

[0005] However, current mounting brackets do not have specific requirements for the arrangement of ceramic clips; they are generally arranged at equal intervals, resulting in consistent or nearly uniform spacing between the ceramic pieces in each row. When these ceramic pieces are immersed in the resin powder tank, the uniform gap between the central and edge areas, coupled with the relatively larger diffusion space at the edges, causes the resin powder in the central area to accumulate upwards under pressure from the ceramic pieces, while the resin powder in the edge areas diffuses outwards. This results in the resin powder forming a hill-like shape within the tank, as shown in the instruction manual. Figure 8 As shown, the resin powder in the middle area has been immersed up to the pins, while the resin powder in the edge area has not been completely immersed in the ceramic sheet body, resulting in some ceramic sheets being left unsealed and requiring rework. This leads to defects such as reduced product quality and low processing efficiency.

[0006] Therefore, based on our practical production experience and theoretical research, we have studied and improved the zinc oxide pressure-sensitive ceramic resin encapsulation and fixing bracket to overcome the aforementioned defects. Utility Model Content

[0007] To address the aforementioned technical problems, this invention provides a zinc oxide pressure-sensitive ceramic resin encapsulation and fixing bracket. This invention is easy to operate, enables uniform diffusion of resin powder, reduces rework due to incomplete sealing, and improves product quality and processing efficiency. Furthermore, the fixing bracket of this invention has a simple structure, reasonable design, strong practicality, and significant effects, making it suitable for widespread application.

[0008] The technical solution of this utility model:

[0009] A zinc oxide pressure-sensitive ceramic resin encapsulated fixing bracket is provided, including a square frame. Several limiting holes are provided on both sides of the square frame along its length, and a ceramic fixing clip is provided between the limiting holes on both sides. The limiting holes on the same side are distributed with the center line of the square frame along its length as the starting point, and the limiting holes on both sides are distributed in an arithmetic sequence decreasing towards both ends of the square frame along its length.

[0010] The fixed bracket in this design is easy to operate, ensures uniform diffusion of resin powder, reduces rework due to incomplete sealing, and improves product quality and processing efficiency. Its overall structure is simple, rationally designed, and highly practical, making it suitable for widespread application.

[0011] Preferably, in the aforementioned zinc oxide pressure-sensitive ceramic resin encapsulated fixing bracket, the difference in the arithmetic sequence is 4-6 mm.

[0012] Preferably, in the aforementioned zinc oxide pressure-sensitive ceramic resin encapsulated fixing bracket, each end of the square frame along its length is provided with a hanging ear.

[0013] Preferably, in the aforementioned zinc oxide pressure-sensitive ceramic resin encapsulation and fixing bracket, the ceramic fixing clamp includes an inverted convex base plate, with limiting ear plates perpendicular to the plane of the inverted convex base plate at both ends along the length direction, and a clamping plate for fixing the zinc oxide pressure-sensitive ceramic at the lower end of the inverted convex base plate.

[0014] Preferably, in the aforementioned zinc oxide pressure-sensitive ceramic resin encapsulated fixing bracket, each end of the square frame in the width direction is provided with a pressure plate that presses against the upper side of the ceramic fixing clip.

[0015] Preferably, in the aforementioned zinc oxide pressure-sensitive ceramic resin encapsulated fixing bracket, the cross-section of the pressure plate is fishhook-shaped, and its lower side is connected to the side of the square frame via a pivot. The pressure plate and the square frame are connected by a tension spring.

[0016] The beneficial effects of this utility model are:

[0017] 1. The fixed bracket of this utility model can balance the diffusion space of resin powder in the central and edge areas, so that the surface of the resin powder in the entire resin powder pool is closer to a horizontal shape, the immersion depth of the ceramic sheets is closer, the encapsulation consistency is higher, the risk of leakage is lower, thereby improving product quality and processing efficiency.

[0018] 2. The fixed bracket of this utility model has a simple overall structure, reasonable design, strong practicality, and is suitable for widespread application. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the overall structure of the fixed bracket of this utility model;

[0020] Appendix Figure 2 This is a schematic diagram of the square frame structure of the fixed bracket of this utility model;

[0021] Appendix Figure 3 For the appendix Figure 2 This is a top view;

[0022] Appendix Figure 4 This is a cross-sectional view of the fixed bracket of this utility model when suspending ceramic pieces;

[0023] Appendix Figure 5 This is a longitudinal sectional view of the fixed bracket of this utility model when suspending ceramic pieces;

[0024] Appendix Figure 6 This is a schematic diagram of the structure of the ceramic fixing clip of this utility model;

[0025] Appendix Figure 7 A longitudinal cross-sectional view of the resin powder tank when the ceramic sheet is fixed in the fixing bracket of this utility model and immersed in the resin powder tank;

[0026] Appendix Figure 8 A longitudinal cross-sectional view of the resin powder tank when ceramic sheets are fixed in a traditional fixed bracket and immersed in the resin powder tank.

[0027] Explanation of reference numerals in the attached drawings: 1-Square frame, 2-Limiting hole, 3-Ceramic fixing clip, 31-Inverted convex base plate, 32-Limiting ear plate, 33-Clamping plate, 4-Hanging ear, 5-Pressure plate, 6-Rotating shaft, 7-Tension spring, 8-Zinc oxide pressure-sensitive ceramic sheet. Detailed Implementation

[0028] The present invention will be further described below with reference to the embodiments, but this should not be construed as limiting the present invention.

[0029] Embodiment 1 of this utility model

[0030] A method for encapsulating and fixing zinc oxide pressure-sensitive ceramics with resin involves taking the center line of the fixed bracket along its length as the starting point and extending ceramic fixing clips, which are fixed with rows of zinc oxide pressure-sensitive ceramics, towards both ends of the fixed bracket in an arithmetic progression that decreases in number.

[0031] In a preferred embodiment, the difference in the arithmetic sequence is 4-6 mm, preferably 5 mm.

[0032] The method in this embodiment can be operated using a traditional fixing bracket, or it can be operated using the fixing bracket of Embodiment 2 of this utility model. Before placing the ceramic fixing clips, firstly, protective tape is wrapped around the pins of the ceramic sheet in the traditional way. Then, using the pins as fixing points, the zinc oxide pressure-sensitive ceramic sheets are fixed at equal intervals on the ceramic fixing clips. Next, one ceramic fixing clip with a zinc oxide pressure-sensitive ceramic sheet is placed on the center line of the length direction of the fixing bracket. Then, starting from this point, other ceramic fixing clips with zinc oxide pressure-sensitive ceramic sheets are placed on both sides in an arithmetic progression decreasing in size. The specific interval can be set as follows: 45mm-40mm-35mm-30mm-25mm. Then, all the ceramic fixing clips are fixed to prevent them from shifting. Then, they are placed in the heating device and resin powder tank for powder coating. When inserted into the resin powder tank, the longitudinal shape of the resin powder in the resin powder tank is as shown in the attached figure. Figure 7 As shown, the surface is nearly horizontal, with all ceramic pieces submerged in resin powder.

[0033] Embodiment 2 of this utility model

[0034] A zinc oxide pressure-sensitive ceramic resin-encapsulated fixing bracket, as shown in the attached image. Figure 1-6 As shown, the device includes a square frame 1. The inner side of the square frame 1 in the width direction is provided with an inwardly extending platform. The two sides of the square frame 1 in the length direction are provided with a number of limiting holes 2. That is, the limiting holes 2 are located on the aforementioned platform and are close to the inner edge of the platform. They are open grooves. A ceramic fixing clip 3 is provided between the two limiting holes 2. The ceramic fixing clip 3 is long and can be locked in the limiting holes 2 at both ends. The limiting holes 2 on the same side are distributed from the center line of the length direction of the square frame 1 as the starting point, and the limiting holes 2 on both sides are distributed in an arithmetic sequence decreasing in a certain manner towards both ends of the length direction of the square frame 1.

[0035] In this embodiment, the spacing of the limiting holes 2 decreases from the center to both sides, and the specific spacing can be set as follows: 45mm-40mm-35mm-30mm-25mm. When encapsulating the zinc oxide pressure-sensitive ceramic sheet 8, the above-described method can be followed to obtain a product with good consistency, minimal leakage, and reliable quality, thus significantly improving processing efficiency.

[0036] Further implementation, for example, is attached. Figure 1-6As shown, the difference between the arithmetic sequences is 4-6 mm, and the specific difference in this embodiment is 5 mm.

[0037] Further implementation, for example, is attached. Figure 1-6 As shown, each end of the square frame 1 along its length is provided with a hanging ear 4. In this embodiment, the hanging ear 4 is used to fix the fixed bracket to the moving mechanism in the heating device and the resin powder tank.

[0038] Further implementation, for example, is attached. Figure 1-6 As shown, the ceramic fixing clip 3 includes an inverted convex base plate 31. Limiting ear plates 32 perpendicular to the plane of the inverted convex base plate 31 are provided at both ends of the inverted convex base plate 31 along its length. A clamping plate 33 for fixing zinc oxide pressure-sensitive ceramics is provided at the lower end of the inverted convex base plate 31. In this embodiment, the clamping plate 33 and the convex base plate 31 are fixed together by screws. When clamping the zinc oxide pressure-sensitive ceramic sheet 8, first unscrew the corresponding screws to open the clamping plate 33, then insert the leads of the zinc oxide pressure-sensitive ceramic sheet 8 between the clamping plate 33 and the convex base plate 31, and then tighten the screws to fix the zinc oxide pressure-sensitive ceramic sheets 8 in rows on the ceramic fixing clip 3. When the ceramic fixing clip 3 is placed on the square frame 1, the lower sides of both ends of the inverted convex base plate 31 are inserted into the limiting holes 2. Under the action of the limiting ear plates 32 at a slightly higher position, the ceramic fixing clip 3 is held and fixed on the square frame 1.

[0039] Further implementation, for example, is attached. Figure 1-6 As shown, each end of the square frame 1 in the width direction is provided with a pressure plate 5 that presses against the upper side of the ceramic fixing clip 3. The pressure plate 5 is used to fix the ceramic fixing clip 3 and prevent it from shifting or shaking.

[0040] Further implementation, for example, is attached. Figure 1-6 As shown, the cross-section of the pressure plate 5 is fishhook-shaped, and its lower side is connected to the side of the square frame 1 via a pivot 6. The pressure plate 5 and the square frame 1 are connected by a tension spring 7.

[0041] In this embodiment, the pressure plate 5 is used in conjunction with the tension spring 7 to maintain tension and compress and fix the ceramic fixing clip 3. At the beginning of installation, first, flip the pressure plates 5 on both sides outwards, and then insert the ceramic fixing clip 3 into the limiting holes 2 on both sides in sequence. After insertion, flip the pressure plates 5 inwards. Under the action of the tension spring 7, the pressure plates 5 maintain a fixed position, ensuring that the inner apex of the pressure plate is in contact with the top surface of the ceramic fixing clip 3.

[0042] The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be included within the protection scope of the present invention.

Claims

1. A zinc oxide pressure-sensitive ceramic resin-encapsulated fixing bracket, characterized in that: It includes a square frame (1), and several limiting holes (2) are provided on both sides of the length direction of the square frame (1). A ceramic fixing clip (3) is provided between the limiting holes (2) on both sides. The limiting holes (2) on the same side start from the center line of the length direction of the square frame (1), and the limiting holes (2) on both sides extend to both ends of the length direction of the square frame (1) in an arithmetic sequence decreasing in a certain way.

2. The zinc oxide pressure-sensitive ceramic resin-encapsulated fixing bracket according to claim 1, characterized in that: The difference between the arithmetic sequences is 4-6 mm.

3. The zinc oxide pressure-sensitive ceramic resin-encapsulated fixing bracket according to claim 1, characterized in that: The square frame (1) has a hanging ear (4) at each end along its length.

4. The zinc oxide pressure-sensitive ceramic resin-encapsulated fixing bracket according to claim 1, characterized in that: The ceramic fixing clamp (3) includes an inverted convex base plate (31), with limiting ear plates (32) perpendicular to the plane of the inverted convex base plate (31) at both ends of the inverted convex base plate (31) along the length direction, and a clamping plate (33) for fixing zinc oxide pressure-sensitive ceramic at the lower end of the inverted convex base plate (31).

5. The zinc oxide pressure-sensitive ceramic resin-encapsulated fixing bracket according to claim 1, characterized in that: The square frame (1) has a pressure plate (5) at each end in the width direction, which presses against the ceramic fixing clip (3).

6. The zinc oxide pressure-sensitive ceramic resin-encapsulated fixing bracket according to claim 5, characterized in that: The pressure plate (5) has a fishhook-shaped cross section, and its lower side is connected to the side of the square frame (1) via a pivot (6). The pressure plate (5) and the square frame (1) are connected by a tension spring (7).

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