Surface-mounted high-voltage ceramic capacitor

Abstract

A patch type high-voltage ceramic capacitor comprises a ceramic body and inner electrodes, the inner wall of the ceramic body is fixedly connected with the outer walls of the inner electrodes, end electrodes are inserted into the front side and the rear side of the outer wall of the ceramic body respectively, the outer wall of the ceramic body is connected with a protection structure, and the front side and the rear side of the top of the protection structure are connected with round blocks respectively. And the outer wall of the round block is connected with a reinforcing structure. The inner sides of the straight plates are attached, then bolts penetrate through the attached straight plates from right to left in a threaded mode, fixing of the sheath and the straight plates is completed, the patch type high-voltage ceramic capacitor is formed, at the moment, the inner sides of the fin plates arranged on the outer wall of the sheath are all attached to the outer wall of the ceramic body, and the fin plates provide good heat conductivity through copper materials of the fin plates. Heat generated in the patch type high-voltage ceramic capacitor is led out, heat control is achieved, normal use of the patch type high-voltage ceramic capacitor is ensured, and the service life of the patch type high-voltage ceramic capacitor is prolonged.

Description

Technical Field

[0001] This utility model relates to surface mount high voltage ceramic capacitors, and more particularly to a surface mount high voltage ceramic capacitor. Background Technology

[0002] Surface mount high voltage ceramic capacitors have multiple functions in circuits, mainly including filtering, coupling, bypassing, decoupling, and energy storage.

[0003] For example, a cup-shaped high-voltage ceramic capacitor with authorization announcement number "CN108257782A" uses a cup-shaped ceramic core. The inner side of the cup-shaped ceramic core is connected to a metal electrode by welded and led-out metal leads, which serve as the low-voltage electrode of the cup-shaped high-voltage ceramic capacitor. The cup-shaped ceramic core structure solves the technical problem of high-voltage ceramic capacitors being susceptible to electromagnetic interference due to their small capacitance when used as high-voltage arm capacitors in high-precision electronic voltage transformers. It can be applied to power equipment and fields such as electronic voltage transformers, electronic voltage sensors, high-voltage voltage measurement, and high-voltage energy metering. However, in the use of surface-mount high-voltage ceramic capacitors, the temperature is not stable enough, with a temperature difference of about ±15 degrees Celsius. This leads to excessive load on the surface-mount high-voltage ceramic capacitor, premature aging of components, and affects the normal use of the surface-mount high-voltage ceramic capacitor, shortening its service life. Summary of the Invention

[0004] This invention aims to solve the problems existing in the prior art by providing a surface-mount high-voltage ceramic capacitor, ensuring its normal use and extending its service life.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This surface mount high voltage ceramic capacitor includes a ceramic body and internal electrodes. The inner wall of the ceramic body is fixedly connected to the outer wall of multiple internal electrodes. Terminal electrodes are respectively inserted into the front and rear sides of the outer wall of the ceramic body. A protective structure is connected to the outer wall of the ceramic body. Circular blocks are respectively connected to the front and rear sides of the top of the protective structure. A reinforcing structure is connected to the outer wall of the circular blocks.

[0006] To further improve the structure, the protective structure includes a sleeve and a straight plate. The inner wall of the sleeve is inserted into the outer wall of the ceramic body. The upper and lower sides of the sleeve are respectively fixed to the inner side of the straight plate. The outer wall of the straight plate is threaded with bolts. The outer wall of the sleeve is fixed with multiple fins.

[0007] Further improvements include ensuring that the inner side of the fin plate is fitted to the outer wall of the ceramic body.

[0008] Further improvements were made, with the inner sides of multiple straight plates fitting together.

[0009] Further improvements include a bent plate and a screw rod. The outer circular opening of the bent plate is inserted into the outer wall of the circular block, and the end circular opening of the bent plate is threadedly connected to the outer wall of the screw rod. A handle is fixedly attached to the end of the screw rod.

[0010] Further improvements include a threaded connection between the inner side of the outer wall of the screw and the outer circular opening of the end electrode.

[0011] The beneficial effects of this utility model are as follows: In this utility model, the protective sleeve is fitted onto the outer wall of the ceramic body in the protective structure. At this time, the inner sides of the two sleeves are in contact with each other, and the inner side of the straight plate is also in contact with each other. Then, the bolt is threaded from right to left through the in contact with the straight plate to complete the fixation of the sleeve and the straight plate, forming a surface-mount high-voltage ceramic capacitor. At this time, the inner sides of the multiple fins provided on the outer wall of the sleeve are in contact with the outer wall of the ceramic body. The fins provide good thermal conductivity through their own copper material, which dissipates the heat generated inside the surface-mount high-voltage ceramic capacitor, realizes heat control, ensures the normal use of the surface-mount high-voltage ceramic capacitor, and extends the service life of the surface-mount high-voltage ceramic capacitor. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the middle sheath, the straight plate, and the bolts;

[0014] Figure 3 for Figure 1 Schematic diagram of the connection relationship between the central fin plate and the straight rod;

[0015] Figure 4 for Figure 1 A schematic diagram showing the connection structure between the bending plate, screw, and handle.

[0016] Explanation of reference numerals in the attached drawings: 1. Ceramic body; 2. Protective structure; 201. Sheath; 202. Straight plate; 203. Bolt; 204. Fin plate; 3. Reinforcing structure; 301. Bend plate; 302. Screw; 303. Handle; 4. Internal electrode; 5. Terminal electrode; 6. Round block; 7. Straight rod. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Example 1:

[0019] See attached document Figure 1-4In this embodiment, a surface-mount high-voltage ceramic capacitor includes a ceramic body 1 and internal electrodes 4. The inner wall of the ceramic body 1 is fixedly connected to the outer wall of multiple internal electrodes 4. Terminal electrodes 5 are respectively inserted into the front and rear sides of the outer wall of the ceramic body 1. The ceramic body 1, internal electrodes 4 and terminal electrodes 5 form a surface-mount high-voltage ceramic capacitor. How to operate and use it has been achieved in the prior art and will not be elaborated in detail. The outer wall of the ceramic body 1 is connected to a protective structure 2. The top front and rear sides of the protective structure 2 are respectively connected to circular blocks 6. The outer wall of the circular blocks 6 is connected to a reinforcing structure 3. The protective structure 2 includes a sheath 201 and a straight plate 202. The inner wall of the sheath 201 is inserted into the outer wall of the ceramic body 1. The upper and lower sides of the sheath 201 are respectively fixed to the inner side of the straight plate 202. The outer wall of the straight plate 202 is connected with a bolt 203 by a round thread. The bolt 203 fixes the fitted straight plate 202. Multiple fins 204 are fixed to the outer wall of the sheath 201. The fins 204 are made of copper. The inner side of the fins 204 is fitted to the outer wall of the ceramic body 1. The inner sides of the multiple straight plates 202 are fitted to each other.

[0020] The protective structure 2 is used to fit the sheath 201 onto the outer wall of the ceramic body 1. At this time, the inner sides of the two sheaths 201 are in contact with each other, and the inner sides of the straight plate 202 are also in contact with each other. Then, the bolt 203 is threaded from right to left through the in contact with the straight plate 202, thus fixing the sheath 201 and the straight plate 202 together, forming a surface-mount high-voltage ceramic capacitor. At this time, the inner sides of the multiple fins 204 provided on the outer wall of the sheath 201 are all in contact with the outer wall of the ceramic body 1. The fins 204 provide good thermal conductivity through their own copper material, which dissipates the heat generated inside the surface-mount high-voltage ceramic capacitor, realizes heat control, ensures the normal use of the surface-mount high-voltage ceramic capacitor, and extends the service life of the surface-mount high-voltage ceramic capacitor.

[0021] The reinforcing structure 3 includes a bent plate 301 and a screw 302. The outer circular opening of the bent plate 301 is inserted into the outer wall of the circular block 6. When the bent plate 301 is pulled upward, it can be separated from the outer wall of the circular block 6. The end circular opening of the bent plate 301 is threadedly connected to the outer wall of the screw 302. The end of the screw 302 is fixedly connected to a handle 303, which facilitates the rotation of the screw 302. The inner side of the outer wall of the screw 302 is threadedly connected to the outer circular opening of the end electrode 5.

[0022] Working principle:

[0023] Mounting of surface-mount high-voltage ceramic capacitors:

[0024] The inner walls of the two end electrodes 5 are inserted into the front and rear sides of the outer wall of the ceramic body 1, respectively. Then, the sheath 201 is put on the outer wall of the ceramic body 1. At this time, the inner sides of the two sheaths 201 are in contact with each other, and the inner sides of the straight plate 202 are also in contact with each other. Then, the bolt 203 is threaded from right to left through the in contact with the straight plate 202 to complete the fixation of the sheath 201 and the straight plate 202, forming a surface-mount high-voltage ceramic capacitor. At this time, the inner sides of the multiple fins 204 provided on the outer wall of the sheath 201 are all in contact with the outer wall of the ceramic body 1. The fins 204 provide good thermal conductivity through their own copper material, and conduct the heat generated inside the surface-mount high-voltage ceramic capacitor to achieve heat control.

[0025] Mounting reinforcement for surface-mount high-voltage ceramic capacitors:

[0026] The outer circular opening of the bent plate 301 is inserted into the outer wall of the circular block 6 from top to bottom. At this time, the bottom and the bend of the bent plate 301 will fit against the outer wall of the ceramic body 1. Then, with the grip 303, the screw 302 is threaded from the right outer side to the inner side through the bent plate 301 and threaded into the circular opening of the outer wall of the ceramic body 1. This completes the stability of the connection between the ceramic body 1 and the collar 201, and avoids the formation of gaps between the ceramic body 1 and the sheath 201 during the use of the surface mount high voltage ceramic capacitor.

[0027] Example 2:

[0028] See attached document Figure 1-4 In this embodiment, a surface-mount high-voltage ceramic capacitor further includes straight rods 7, the outer walls of which are respectively fixedly connected to the inner walls of multiple fins 204. Working principle:

[0029] The straight rod 7 reinforces the inner wall of the fin plate 204 through its own carbon fiber rod, preventing the fin plate 204 from deforming and being damaged.

[0030] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A surface-mount high-voltage ceramic capacitor, comprising a ceramic body (1) and internal electrodes (4), wherein the inner wall of the ceramic body (1) is fixedly connected to the outer wall of a plurality of internal electrodes (4), characterized in that: End electrodes (5) are inserted into the front and rear sides of the outer wall of the ceramic body (1). A protective structure (2) is connected to the outer wall of the ceramic body (1). A round block (6) is connected to the front and rear sides of the top of the protective structure (2). A reinforcing structure (3) is connected to the outer wall of the round block (6).

2. The surface mount high voltage ceramic capacitor according to claim 1, characterized in that: The protective structure (2) includes a sleeve (201) and a straight plate (202). The inner wall of the sleeve (201) is inserted into the outer wall of the ceramic body (1). The upper and lower sides of the sleeve (201) are respectively fixed to the inner side of the straight plate (202). The outer wall of the straight plate (202) is threaded with bolts (203). The outer wall of the sleeve (201) is fixed with multiple fins (204).

3. The surface mount high voltage ceramic capacitor according to claim 2, characterized in that: The inner side of the fin (204) is attached to the outer wall of the ceramic body (1).

4. The surface mount high voltage ceramic capacitor according to claim 2, characterized in that: The inner sides of the multiple straight plates (202) are attached together.

5. The surface mount high voltage ceramic capacitor according to claim 1, characterized in that: The reinforcement structure (3) includes a bent plate (301) and a screw (302). The outer wall of the bent plate (301) is inserted into the outer wall of the round block (6). The end of the bent plate (301) is threaded to the outer wall of the screw (302). A handle (303) is fixed to the end of the screw (302).

6. The surface-mount high-voltage ceramic capacitor according to claim 5, characterized in that: The inner side of the outer wall of the screw (302) is threaded to the outer wall of the end electrode (5).

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