Ceramic wiring terminal for power capacitor
The application is Application No. 201210095873.6, and the applying date is on March 31st, 2012, and invention and created name is
A kind of divisional application of the application for a patent for invention of " ceramic wiring terminal for power capacitor ".
Technical field
The present invention relates to ceramic-type binding post structure design field, more particularly to a kind of pottery for power capacitor
Porcelain binding post.
Background technology
The ceramic insulator of high-voltage capacitor in the market is to be allowed to silver together with installation portion and ceramic welding
It is secured firmly on ceramics, this product cost is higher, complex steps, long processing time.
Traditional ceramic-type insulator is, it is necessary to which the connector assembly of metallic and mounting assembly are welded admittedly with ceramic insulator
Fixed, because the particularity of ceramics is, it is necessary to use the extraordinary solder using silver alloy as main component, this kind of solder price is very high
It is expensive, while in order to ensure the two fastness combined, it is also necessary to relatively thicker layer, materials are more, cause this kind of insulator
Cost remains high;In addition, in order to which the viscous state that is configured to easily smear by this silver alloy is, it is necessary to heavier using pollution level
Acidic chemical medicine, be unfavorable for environmental protection.
Patent application 200910131660.2 discloses a kind of ceramic insulator device for high-voltage capacitor.The patent
Disclosed ceramic insulator device replaces traditional silver to close by using new construction with common cheap tin alloy solder
Gold solder, so as to reduce manufacturing cost.
Applicant has found in follow-up research and development trial-manufacturing process, using two semicircular metal baffle rings and metal installation base
It is welded and fixed, so as to ensure that metal installation base is fixedly secured in ceramic outer wall, this structure is practical and can met
Relevant national standard, but the operating process of its processing installation is relatively complicated, it is necessary to be clamped using special special fixture
Metal baffle ring and metal installation base, soldering smoothly could be carried out to it.
In addition, metal installation base used in this kind of ceramic insulator device when stress is larger, is easily circumferentially sent out along insulator
Raw sliding, influences sealing property.
The content of the invention
Effectively prevent metal base from sliding phenomenon circumferentially occurs along insulator it is an object of the invention to provide a kind of, so as to protect
Demonstrate,prove the ceramic wiring terminal for power capacitor of its sealing property.
Realizing the technical scheme of the object of the invention is:A kind of ceramic wiring terminal for power capacitor, including wiring group
Part, ceramic insulator and the mounting assembly for being arranged on the ceramic insulator bottom;The ceramic insulator is along its central axis
Line is provided with through hole, and the middle part outer wall of the insulator is provided with multiple full skirts, and insulator bottom outer wall is provided with an edge
The annular locating lug boss of radial protrusion;The mounting assembly includes metal base and O-ring seal;The ring packing snare
It is located on the outer wall of insulator bottom, and adjacent annular locating lug boss bottom wall is set;Its design feature is:The insulator bottom
The a plurality of locating slot extended in the axial direction is additionally provided with outer wall, each locating slot is located at below the annular locating lug boss;It is described
Ceramic insulator external wall of upper portion is provided with ring roll engaging portion, and the ceramic insulator top is provided with groove, and the ceramics are absolutely
The through hole of edge is located at the groove center;The connector assembly includes gasket seal, bolt and rolling connector;The sealing
Open-work is provided with pad center;The bolt includes being provided with the stud in external screw thread area and positioned at the location division of the side of stud one;
The location division of the bolt and gasket seal in the grooves, and the gasket seal be located at bolt location division and groove bottom wall it
Between;It is described rolling connector include be used for be crimped on bolt location division lid splenium, for being set in ceramic insulator top
Socket part on outer wall and for being crimped on by rolling mode in ceramic insulator external wall of upper portion in ring roll engaging portion
Rolling portion, open-work is provided with the lid splenium center, and the stud of the bolt through the open-work and is higher by rolling connector;It is described
Bolt is additionally provided with the wiring hole through stud and location division along central axial direction;The wiring hole, the open-work of gasket seal, rolling
Open-work, the through hole of ceramic insulator of pressure connector lid splenium are arranged concentrically.The metal base includes being used for ring packing
Circle is pressed on the pressure contact portion on annular locating lug boss bottom wall;The pressure contact portion of the metal base is provided with multiple with the locating slot phase
The positioning boss of cooperation, each positioning boss are located in a corresponding locating slot.The metal base also includes being used to be set in ring
Socket part on shape positioning boss and the rolling ring on annular locating lug boss roof is withheld by rolling mode;The rolling ring
It is to be formed along inward direction rolling pedestal socket part top.Mounting assembly also includes base tube;Base tube includes being used for and base
Seat welding is glued connected weld part and is integrally formed manufactured cannula portion with weld part;The roof of the base tube weld part
It is that the pressure contact portion of a plane and metal base is equipped with welding plane, the weld part of the base tube and the pressure contact portion of metal base weld
Connect and be fixedly linked.
The present invention has positive effect:
(1)The present invention is relatively reasonable in structure compact, and it is existing can effectively to prevent that metal base from sliding circumferentially occurring along insulator
As so as to ensure its sealing property.
Brief description of the drawings
Fig. 1 is a kind of dimensional structure diagram of the first structure of the invention;
Fig. 2 is a kind of decomposing schematic representation of binding post shown in Fig. 1;
Fig. 3 is a kind of sectional view of binding post shown in Fig. 1;
Fig. 4 is a kind of sectional view of ceramic insulator in binding post shown in Fig. 1;
Fig. 5 is a kind of sectional view of metal base in binding post shown in Fig. 1;
Fig. 6 is a kind of sectional view of base tube in binding post shown in Fig. 1.
Reference in above-mentioned accompanying drawing is as follows:
Ceramic insulator 1, through hole 11, full skirt 12, annular locating lug boss 13, bottom wall 131, roof 132, ring roll snapping
Portion 15, groove 16, locating slot 17,
Mounting assembly 2, metal base 21, pressure contact portion 211, socket part 212 roll ring 213, and positioning boss 215 is annular close
Seal 22, base tube 3, weld part 31, cannula portion 32,
Connector assembly 4, gasket seal 41, open-work 411, bolt 42, stud 421, location division 422, wiring hole 423, rolling
Connector 43, lid splenium 431, socket part 432, rolling portion 433, open-work 434, hooking ring 435 is rolled,
Welding plane 100.
Embodiment
(Embodiment 1)
Fig. 1 to Fig. 6 shows the first embodiment of the present invention, and wherein Fig. 1 is the first structure of the invention
A kind of dimensional structure diagram;Fig. 2 is a kind of decomposing schematic representation of binding post shown in Fig. 1;Fig. 3 is one of binding post shown in Fig. 1
Kind sectional view;Fig. 4 is a kind of sectional view of ceramic insulator in binding post shown in Fig. 1;Fig. 5 is metal in binding post shown in Fig. 1
A kind of sectional view of pedestal;Fig. 6 is a kind of sectional view of base tube in binding post shown in Fig. 1.
The present embodiment is a kind of ceramic wiring terminal for power capacitor, as shown in Fig. 1 to Fig. 6, including ceramic insulation
Son 1, it is arranged on the connector assembly 4 on the top of ceramic insulator 1 and is arranged on the mounting assembly of the bottom of ceramic insulator 1
2;The ceramic insulator 1 is provided with through hole 11 along its center axis, and the middle part outer wall of the insulator 1 is provided with multiple full skirts
12, the bottom outer wall of insulator 1 is provided with a radially raised annular locating lug boss 13, outside the bottom of insulator 1
The a plurality of locating slot 17 extended in the axial direction is additionally provided with wall, each locating slot 17 is positioned at the lower section of annular locating lug boss 13;
The mounting assembly 2 includes metal base 21, O-ring seal 22 and base tube 3;The O-ring seal 22 is arranged
On the bottom outer wall of insulator 1, and adjacent annular locating lug boss bottom wall 131 is set;The metal base 21 includes being used for ring
Pressure contact portion 211 that shape sealing ring 22 is pressed on annular locating lug boss bottom wall 131, for being set in annular locating lug boss 13
Socket part 212 and the rolling ring 213 on annular locating lug boss roof 132 is withheld by rolling mode;The metal base 21
Pressure contact portion 211 be provided with multiple positioning boss 215 being engaged with the locating slot 17, each positioning boss 215 is located at corresponding one
In individual locating slot 17.
The base tube 3 includes being used for welding or is glued with pedestal 21 weld part 31 that is connected and integral with weld part 31
Cannula portion 32 made of shaping.
The roof of the weld part 31 of base tube 3 is that the pressure contact portion 211 of a plane and metal base 21 is equipped with welding plane
100, the weld part 31 of the base tube 3 is welded and fixed with the pressure contact portion 211 of metal base 21 to be connected.
The rolling ring 213 is to roll the top of 21 socket part of pedestal 212 along inward direction to be formed.
The external wall of upper portion of ceramic insulator 1 is provided with ring roll engaging portion 15, and the top of ceramic insulator 1 is provided with
Groove 16, the through hole 11 of the ceramic insulator 1 are located at the center of groove 16;The connector assembly 4 include gasket seal 41,
Bolt 42 and rolling connector 43;Open-work 411 is provided with the center of gasket seal 41;The bolt 42 includes being provided with external screw thread
The stud 421 in area and positioned at the location division 422 of the side of stud 421 1;The location division 422 of the bolt 42 and gasket seal
41 are located in groove 16, and the gasket seal 41 is located between the location division 422 of bolt 42 and the bottom wall of groove 16;The rolling connects
Fitting 43 includes being used for being crimped on lid splenium 431 on the location division 422 of bolt 42, for being set in outside the top of ceramic insulator 1
Socket part 432 on wall and for being crimped on ring roll engaging portion 15 in the external wall of upper portion of ceramic insulator 1 by rolling mode
On rolling portion 433, be provided with open-work 434 at the center of lid splenium 431, the stud 421 of the bolt 42 passes through the open-work 434
And it is higher by rolling connector 43.
The bolt 42 is additionally provided with the wiring hole 423 through stud 421 and location division 422 along central axial direction;It is described
Wiring hole 423, gasket seal 41 open-work 411, roll the open-work 434 of the lid splenium 431 of connector 43, ceramic insulator 1 it is logical
Hole 11 is arranged concentrically.
The shape of the location division 422 of groove 16 and bolt 42 is the regular polygon being engaged, and the present embodiment selects positive six
Side shape.
The rolled deformation in bottom in the rolling portion 433 of the rolling connector 43 is inwardly projecting to form a rolling hooking ring
435。
Metal installation base due to being fixed under ceramic insulator by the present embodiment by using rolling mode rational in infrastructure
On portion's outer wall, so as to effectively improve the reliability of production efficiency and product quality.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to this
The restriction of the embodiment of invention.For those of ordinary skill in the field, on the basis of the above description can be with
Make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And these belong to
Among the obvious changes or variations that the spirit of the present invention is extended out is still in protection scope of the present invention.