Low-loss voltage-dividing ceramic vacuum capacitor

Abstract

The utility model discloses a low-loss voltage-dividing ceramic vacuum capacitor, which comprises a capacitor body, a ceramic insulation tube and a connection heat conduction mechanism, the ceramic insulation tube is arranged on the surface of the capacitor body, the connection heat conduction mechanism is arranged on the capacitor body, and the connection heat conduction mechanism comprises an annular frame. The number of the annular frames is two, the two annular frames are respectively arranged on the surface of the capacitor body, and the limiting disassembly and assembly mechanism is arranged on the annular frames and comprises an insertion block. According to the utility model, through mutual cooperation of the annular frame, the radiating fins, the heat-conducting glue, the heat-conducting fins and the heat-conducting blocks, heat generated on the surface of the ceramic insulating tube can be conveniently and rapidly discharged, the influence of the heat on the ceramic insulating tube is avoided, loss increase caused by overheating is avoided, loss of the voltage-dividing ceramic vacuum capacitor is further reduced, and the service life of the voltage-dividing ceramic vacuum capacitor is prolonged. And meanwhile, the ceramic insulating tube can be conveniently protected, and damage to the ceramic insulating tube caused by collision of external objects is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum capacitors, in particular to a low-loss voltage-dividing ceramic vacuum capacitor. Background Art

[0002] A vacuum capacitor is a capacitor that uses vacuum as the medium. The electrode group of this capacitor is a group of concentric cylindrical electrodes formed by extending high-conductivity oxygen-free copper strip through a set of high-precision molds and sealed in a vacuum container. Therefore, its performance is stable and reliable, and it is not easy to produce arcing, corona and other phenomena. A ceramic insulating tube will be set on the surface of the voltage-dividing ceramic vacuum capacitor to further reduce losses and achieve a low-loss effect.

[0003] According to the application number: CN202121406253.0, a low-loss voltage-dividing ceramic vacuum capacitor includes a voltage-dividing ceramic vacuum capacitor body and a ceramic insulating tube. The voltage-dividing ceramic vacuum capacitor body shell is composed of a ceramic insulating tube, an upper end cover and a lower end cover.

[0004] In the above case, a cylinder is provided to protect and dissipate heat for the ceramic insulating tube, but the cylinder and the voltage-dividing ceramic vacuum capacitor are fixed as one, so that the protection and heat dissipation structure cannot be recycled. When the voltage-dividing ceramic vacuum capacitor is damaged and scrapped, the entire protection and heat dissipation structure is also directly scrapped, thereby wasting resources. Utility Model Content

[0005] The utility model aims to provide a low-loss voltage-dividing ceramic vacuum capacitor to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a low-loss voltage-dividing ceramic vacuum capacitor, comprising:

[0007] Capacitor body;

[0008] A ceramic insulating tube, wherein the ceramic insulating tube is mounted on the surface of the capacitor body;

[0009] A heat-conducting connection mechanism, the heat-conducting connection mechanism is arranged on the capacitor body, the heat-conducting connection mechanism comprises an annular frame, the number of the annular frames is two and the annular frames are respectively arranged on the surface of the capacitor body;

[0010] The position limiting and disassembling mechanism is arranged on the annular frame. The position limiting and disassembling mechanism comprises an insert block. The number of the insert blocks is two and they are respectively installed on the annular frame located on the left side.

[0011] Preferably, a heat sink is installed in the groove on the side of the annular frame away from the capacitor body, the left and right sides of the ceramic insulating tube are connected to the heat sink via thermal conductive adhesive, and the side of the heat sink close to the heat sink is fixedly connected to the heat sink via a thermal conductive block.

[0012] Preferably, a slot adapted to the plug-in block is provided on one side of the annular frame located on the right side and close to the plug-in block, and the right side of the plug-in block passes through the slot and extends to the inside thereof to contact the inner wall of the slot.

[0013] Preferably, mounting blocks are installed on the right sides of the front and back sides of the left annular frame, and a fixing block is installed on the mounting block. A threaded rod is movably connected to the groove of the fixing block on the side away from the insertion block through a bearing, and one end of the threaded rod away from the fixing block passes through the mounting block and extends to the outside thereof, and a rotating block is installed on the end of the threaded rod away from the fixing block.

[0014] Preferably, a moving block is threadedly connected to the surface of the threaded rod, a positioning block is installed on the side of the moving block away from the insertion block, a positioning groove adapted to the positioning block is opened on the mounting block, and the side of the positioning block close to the positioning groove passes through the positioning groove and extends to its interior to slide in contact with the inner wall of the positioning groove.

[0015] Preferably, a card block is installed on the side of the moving block close to the insertion block, and a card slot is opened on the side of the insertion block close to the card block. The side of the card block close to the card slot sequentially penetrates the slot and the card slot and extends to the inside of the card slot to contact the inner wall of the card slot.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model cooperates with the annular frame, the heat sink, the thermal adhesive, the thermal conductive sheet and the thermal conductive block to quickly discharge the heat generated on the surface of the ceramic insulating tube, avoid the heat from affecting the ceramic insulating tube, avoid the loss caused by overheating, and thus reduce the loss of the voltage-dividing ceramic vacuum capacitor. At the same time, it is convenient to protect the ceramic insulating tube and reduce the damage caused by collision with external objects.

[0018] 2. The utility model facilitates the disassembly of the annular frame through the mutual cooperation of the insert block, the slot, the mounting block, the fixed block, the threaded rod, the rotating block, the moving block, the positioning block, the positioning slot, the clamping block and the clamping slot, so that the annular frame can be recycled and the flexibility during use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a structural cross-sectional view of the front view of the utility model;

[0021] Figure 3 It is a structural cross-sectional view of a top view of the annular frame and the limiting disassembly and assembly mechanism of the utility model;

[0022] Figure 4 For this utility model Figure 3 A partial enlarged view of middle A.

[0023] In the figure: 1 capacitor body, 11 ceramic insulating tube, 2 connecting heat conduction mechanism, 21 ring frame, 22 heat sink, 23 thermal adhesive, 24 thermal conductive sheet, 25 thermal conductive block, 3 limiting disassembly mechanism, 31 plug-in block, 32 slot, 33 mounting block, 34 fixed block, 35 threaded rod, 36 rotating block, 37 moving block, 38 positioning block, 39 positioning slot, 310 card block, 311 card slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 A low-loss voltage-dividing ceramic vacuum capacitor comprises: a capacitor body 1 and a ceramic insulating tube 11 , wherein the ceramic insulating tube 11 is mounted on the surface of the capacitor body 1 .

[0026] A heat-conducting connection mechanism 2 is provided on the capacitor body 1. The heat-conducting connection mechanism 2 includes an annular frame 21. There are two annular frames 21, which are respectively provided on the surface of the capacitor body 1. The side of the annular frame 21 close to the capacitor body 1 is in contact with the capacitor body 1. The side of the annular frame 21 close to the ceramic insulating tube 11 is in contact with the ceramic insulating tube 11. A heat sink 22 is fixedly connected in a groove on the side of the annular frame 21 away from the capacitor body 1. The left and right sides of the ceramic insulating tube 11 are connected to a heat sink 24 through a heat-conducting adhesive 23. The side of the heat sink 24 close to the heat sink 22 is fixedly connected to the heat sink 22 through a heat-conducting block 25.

[0027] Furthermore, the heat generated by the ceramic insulating tube 11 is transferred to the heat conducting sheet 24 through the heat conducting adhesive 23 , and then transferred to the heat sink 22 through the heat conducting sheet 24 and the heat conducting block 25 , so that the heat can be discharged through the heat sink 22 .

[0028] Through the cooperation of the annular frame 21, the heat sink 22, the thermal adhesive 23, the thermal conductive sheet 24 and the thermal conductive block 25, the heat generated on the surface of the ceramic insulating tube 11 can be quickly discharged, thereby preventing the heat from affecting the ceramic insulating tube 11 and preventing the loss caused by overheating, thereby reducing the loss of the voltage-dividing ceramic vacuum capacitor. At the same time, it is convenient to protect the ceramic insulating tube 11 and reduce the damage caused by collision with external objects.

[0029] The limiting disassembly and assembly mechanism 3 is arranged on the annular frame 21. The limiting disassembly and assembly mechanism 3 includes an insert block 31. There are two insert blocks 31 and they are respectively installed on the annular frame 21 on the left side. A slot 32 adapted to the insert block 31 is provided on the side of the annular frame 21 on the right side and close to the insert block 31. The right side of the insert block 31 penetrates the slot 32 and extends to its interior to contact with the inner wall of the slot 32. The right sides of the front and back sides of the left annular frame 21 are fixedly connected with mounting blocks 33. A fixing block 34 is fixedly connected to the mounting block 33. A threaded rod 35 is movably connected to the groove of the fixing block 34 away from the insert block 31 through a bearing. One end of the threaded rod 35 away from the fixing block 34 penetrates the fixing block 33 and extends to its outside. One end of the threaded rod 35 away from the fixing block 34 is fixedly connected with a rotating block 36. One end of the rotating block 36 close to the mounting block 33 The side of the threaded rod 35 contacts with the mounting block 33, and the surface of the threaded rod 35 is threadedly connected with a moving block 37. The side of the moving block 37 close to the fixed block 34 contacts with the fixed block 34, and the side of the moving block 37 away from the plug block 31 is fixedly connected with a positioning block 38. A positioning groove 39 adapted to the positioning block 38 is provided on the mounting block 33. The side of the positioning block 38 close to the positioning groove 39 passes through the positioning groove 39 and extends to its interior to slide in contact with the inner wall of the positioning groove 39. By providing the positioning block 38 and the positioning groove 39, the stability of the moving block 37 during movement is improved. The side of the moving block 37 close to the plug block 31 is fixedly connected with a clamping block 310, and the side of the plug block 31 close to the clamping block 310 is provided with a clamping groove 311. The side of the clamping block 310 close to the clamping groove 311 passes through the slot 32 and the clamping groove 311 in sequence and extends to the interior of the clamping groove 311 to contact with the inner wall of the clamping groove 311.

[0030] Through the cooperation of the insert block 31, the slot 32, the mounting block 33, the fixing block 34, the threaded rod 35, the rotating block 36, the moving block 37, the positioning block 38, the positioning groove 39, the clamping block 310 and the clamping groove 311, the annular frame 21 can be easily disassembled and recycled, thereby improving the flexibility of use.

[0031] When in use, the rotating block 36 is rotated, and the rotating block 36 drives the threaded rod 35 to rotate, and the threaded rod 35 drives the moving block 37 to move away from the plug-in block 31, and the moving block 37 drives the clamping block 310 to move away from the clamping slot 311, so that the clamping block 310 and the clamping slot 311 are separated, and then the annular frame 21 is pulled, and the annular frame 21 moves away from the capacitor body 1, so that the plug-in block 31 and the slot 32 are separated, and at the same time, the annular frame 21 drives the heat conductive sheet 24 and the heat conductive adhesive 23 to separate, and the annular frame 21 can be removed.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-loss voltage-dividing ceramic vacuum capacitor, characterized in that: include: Capacitor body (1); A ceramic insulating tube (11), wherein the ceramic insulating tube (11) is mounted on the surface of the capacitor body (1); A connecting heat-conducting mechanism (2), the connecting heat-conducting mechanism (2) being arranged on the capacitor body (1), the connecting heat-conducting mechanism (2) comprising an annular frame (21), the number of the annular frames (21) being two and being arranged respectively on the surface of the capacitor body (1); A position limiting and disassembling mechanism (3), wherein the position limiting and disassembling mechanism (3) is arranged on the annular frame (21), and the position limiting and disassembling mechanism (3) comprises an insert block (31), wherein the number of the insert blocks (31) is two and the insert blocks (31) are respectively installed on the annular frame (21) located on the left side.

2. A low-loss voltage-dividing ceramic vacuum capacitor according to claim 1, characterized in that: A heat sink (22) is installed in a groove on a side of the annular frame (21) away from the capacitor body (1), and both left and right sides of the ceramic insulating tube (11) are connected to heat sinks (24) via heat conductive adhesive (23), and a side of the heat sink (24) close to the heat sink (22) is fixedly connected to the heat sink (22) via a heat conductive block (25).

3. A low-loss voltage-dividing ceramic vacuum capacitor according to claim 2, characterized in that: A slot (32) adapted to the insert block (31) is provided on a side of the annular frame (21) located on the right side and close to the insert block (31); the right side of the insert block (31) passes through the slot (32) and extends to the inside thereof to contact the inner wall of the slot (32).

4. A low-loss voltage-dividing ceramic vacuum capacitor according to claim 3, characterized in that: A mounting block (33) is installed on the right side of the front and back sides of the left annular frame (21), a fixing block (34) is installed on the mounting block (33), a threaded rod (35) is movably connected in a groove on a side of the fixing block (34) away from the inserting block (31) through a bearing, one end of the threaded rod (35) away from the fixing block (34) passes through the mounting block (33) and extends to the outside thereof, and a rotating block (36) is installed on one end of the threaded rod (35) away from the fixing block (34).

5. A low-loss voltage-dividing ceramic vacuum capacitor according to claim 4, characterized in that: A moving block (37) is threadedly connected to the surface of the threaded rod (35); a positioning block (38) is installed on a side of the moving block (37) away from the inserting block (31); a positioning groove (39) adapted to the positioning block (38) is opened on the mounting block (33); a side of the positioning block (38) close to the positioning groove (39) penetrates the positioning groove (39) and extends to the inside thereof to slide in contact with the inner wall of the positioning groove (39).

6. A low-loss voltage-dividing ceramic vacuum capacitor according to claim 5, characterized in that: A clamping block (310) is installed on one side of the moving block (37) close to the inserting block (31); a clamping slot (311) is provided on one side of the inserting block (31) close to the clamping block (310); and a side of the clamping block (310) close to the clamping slot (311) sequentially penetrates the slot (32) and the clamping slot (311) and extends to the interior of the clamping slot (311) and contacts the inner wall of the clamping slot (311).

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