CN200962406Y - Gas sealing low voltage electrical appliance with the operation contact - Google Patents
Gas sealing low voltage electrical appliance with the operation contact Download PDFInfo
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- CN200962406Y CN200962406Y CN 200620124717 CN200620124717U CN200962406Y CN 200962406 Y CN200962406 Y CN 200962406Y CN 200620124717 CN200620124717 CN 200620124717 CN 200620124717 U CN200620124717 U CN 200620124717U CN 200962406 Y CN200962406 Y CN 200962406Y
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- sealed chamber
- contact
- voltage electrical
- electrical apparatus
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Abstract
An air-tight type low-voltage electrical apparatus with a working contactor, such as a non-oxidation and non-flashover alternating current contactor comprises a hermetic cabin composed of a top cover and a chassis. An electromagnetic work system, a contacting work system and a rectifying energy-saving circuit plate are arranged in the hermetic cabin, and a static contact terminal pin and a coil terminal pin are arranged out the hermetic cabin. The composition face formed by that the top cover edging is connected with the chassis is provided with a circle flutes. The composition face formed by that the chassis edging is connected with the top cover is provided with a circle projections. That the projections are embedded in the flutes make the top cover and the chassis connect together, forming the hermetic cabin. The design can make that the hermetic cabin keep the environment oxygen free for long to ensure the movable contact and the static contact out of oxidation and no electric arc leakage in the course of work, thereby simplifying the sealing technology greatly, increasing the service life of the product greatly and reducing the reactive loss.
Description
Technical field
The utility model relates to the low-voltage electrical apparatus that a kind of hermetic type has working contact, particularly has the no arcing A.C. contactor of sealed chamber.
Background technology
The similar low-voltage electrical apparatus that has working contact of Xiao Shouing in the market, contactor for example, its contact is operated in the air atmosphere, and the oxidation of contact is very serious.The oxidation of contact makes the conductive component of product produce the knot charcoal, strike sparks, draw fire, has significantly increased reactive loss, and it is too high to heat up, and useful life is low.As everyone knows, the loss that is produced during electric equipment products work generally is made up of factors such as reactive loss, galvanic corrosion and electrolysis, and wherein reactive loss accounts for more than 60%.People have expected working contact is sealed in the sealed chamber, compare with aerobic environment, and this is the effective ways that solve the contact oxidation and reduce reactive loss, can significantly improve the working life of electric equipment products in theory.But the airtight methods of products such as known contactor, relay, owing to make the enclosed environment difficulty, there is the defective of sealing difference in it, so can not satisfy user's instructions for use.
The patent No. is the patent of invention of 7-38055, it discloses a kind of technology of electromagnetic relay, this electromagnetic relay is made up of following parts: the solenoid in the magnetic field that produces, energising back, armature by field drives, driving by armature makes circuit produce the closure or openness device that movable contact board and fixed contact board constituted of closure or openness action, for with isolate from outer air, this prior art is with coil, armature, in the metal cabinet that opening and closing device etc. fit together, and to solenoid, armature, inject argon ion at least one parts in opening and closing device and the metal cabinet.The main method that this prior art control electric arc takes place is the depths of argon ion being injected metal cabinet wall surface 8um, by argon ion cooling electric arc and arc cutting.The available householder method that this prior art control electric arc takes place is to charge into the nitrogen that is approximately 97% pair 3% ratio and the inert gas of argon formation with 1.5-2 air pressure in the metal cabinet, but need not and must charge into.The major defect that the technical scheme of this prior art patent exists is:
1, the technology of injection argon ion is numerous and diverse, and processing cost height, arc quenching effect are also undesirable;
2, directly inert gas is charged into casing, promptly before charging into inert gas, do not make anoxybiotic in the casing and handle, thereby because of the effect of air residual in the casing, the oxidation of working contact, knot charcoal problem still can not be solved;
3, by base and the gluing casing that forms of housing, because the structural design on the gluing composition surface of base and housing is unreasonable, sealing effectiveness is bad;
4, the inert gas that is filled in the casing is a 1.5-2 atmospheric pressure, so there is serious leakage problem in casing, thereby influences the stability and the life-span of product.
Application number is that 021119376 application for a patent for invention discloses a kind of non-oxidation and do not have flashover current break-make device, this break-make device is formed sealed chamber at the end by shell,, on the outer hexahedral face of sealed chamber an air valve is housed, in order to processing to oxygen-free environment in the sealed chamber, task workpiece electromagnet, brachium pontis, contact are installed on the interior wing base of sealed chamber, and the contact wiring is drawn by the sealing binding post on the interior wing base.The technical characterstic that the disclosed non-oxidation of this patent application technology does not have arcing is: carry out the air valve that anaerobic is handled in one of airtight outdoor mounted is used for sealed chamber; Sealed chamber is by shell and base adhesive sealing; Fill in the sealed chamber with nitrogen, sulfur hexafluoride gas.This patent application technology realizes the anaerobic processing because of need by air valve, thus the manufacturing cost height, and production efficiency is low.Need on the basis of the design on the sticking composition surface of shell and base plate glue, further improve design, to realize better sealing effectiveness.
Because there is the defective that can not satisfy user's instructions for use in above-mentioned prior art, adopt the hermetically-sealed construction of above-mentioned prior art and the sealed chamber of the designed manufacturing of oxygen-free seal processing method, it is big to satisfy rated current at all, the A.C. contactor that life requirements is high,, useful life big 6 times as the rated transformation ratio GB is greater than the instructions for use of 30,000 times idle call alternating current tentaculum.The sealing problem of sealed chamber is to exchange to connect the ubiquitous technical barrier of low-voltage electrical apparatus that device, electromagnetic relay, current breaker etc. have working contact, up to the present, does not see the prior art that can better solve this difficult problem as yet.
The utility model content
The purpose of this utility model, be to overcome the defective of above-mentioned prior art, provide a kind of hermetic type to have the low-voltage electrical apparatus of working contact, this sealed chamber structure goes for the multiple low-voltage electrical apparatus that A.C. contactor, electromagnetic relay, current breaker etc. have working contact, and working contact is worked under the anoxybiotic environment, do not produce oxidation and oxidation loss, can not generate the charcoal knot, temperature rise is very little, thereby has guaranteed security of products, reliability and stability; And simplified the sealing manufacturing process, significantly reduced production cost.
To achieve these goals, the utility model has adopted following hermetically-sealed construction.
Hermetic type of the present utility model has the low-voltage electrical apparatus of working contact, be arranged in the sealed chamber of forming by loam cake and base, in sealed chamber, be equipped with by armature 7, yoke 8, the electromagnetism work system that coil 6 is formed, by moving contact 10, fixed contact 3, contact work system and rectification economizer circuit plate that stage clip 12 is formed, be externally connected with fixed contact terminal pin and coil lead pin at sealed chamber, on described loam cake and mutual opposed two composition surfaces of base, a composition surface is a groove structure, another composition surface is a bulge-structure, groove by two composition surfaces cooperates with the embedding of bulge-structure, loam cake and base be tightly connected is one, forms sealed chamber; Will be with glue in described two the engage grooves faces and the sealing of the seam gap sealing between the bump bonds face of loam cake and base; When the fixed contact lead elements and production method thereof is drawn outside sealed chamber in the sealed chamber, the intermediate portion is at the place, composition surface by groove and bulge-structure, make the curved shape that is complementary with convex-concave surface, its sweep snaps in the breach of described groove structure, and when the composition surface by loam cake and base, be hidden in fully in the fluid sealant in the groove.
In sum, the hermetically-sealed construction of sealed chamber of the present utility model owing to adopted concaveconvex structure to be connected between loam cake and the base, has adopted bending to snap in structure between lead elements and production method thereof and loam cake, the base and has been connected, has strengthened the area that glue seals, improved sealing greatly.In addition, because groove structure can be contained glue,, improved production efficiency, reduced manufacturing cost so improved the technology that glue seals quality, simplified the glue envelope greatly.After tested, the utlity model has following advantage:
1, owing to carried out the deaeration in condenser processing in the sealed chamber, and filled inert gas, the air pressure balance that sealed chamber is inside and outside, electric arc will not be to external leakage, dwindled the arc safety space, installation direction without limits, thereby dwindled the volume of product greatly, expanded simultaneously the scope that product uses greatly, as household electrical appliances, air-conditioning, chemical workshop, war products, Aerospace Products, network communication product and inflammable and explosive occasion etc.;
2, because the inside and outside air pressure of sealed chamber is balance, so loam cake and base can adopt the pressing mold plastics, technology is simple, greatly reduces production cost, has dwindled small product size, has alleviated product weight, has simplified manufacturing procedure, has improved production efficiency.
3, the lid of the sealed chamber made of pressing mold plastics and pedestal have utilized the principle that groove is contained glue, be easy to realize that sealing makes, and the sealing property of sealed chamber are good especially, thereby have guaranteed that inert gas does not leak, and have guaranteed the non-oxidation of electrical equipment, no arcing.Owing to there is not idle oxidation loss, the life-span is increased substantially, contrastive test experimental results show that than the like product life-span Senior Three of prior art doubly.
Description of drawings
Fig. 1 is the outline drawing that airtight non-oxidation of the present utility model does not have arcing A.C. contactor embodiment.
Fig. 2 is the cutaway view of the no arcing A.C. contactor of airtight nothing gasification of Fig. 1.
Fig. 3 is the cutaway view of the syndeton of the non-oxidation of the present utility model fixed contact terminal pin that do not have arcing A.C. contactor embodiment, groove and projection.
Embodiment
An embodiment who does not have the arcing A.C. contactor below in conjunction with hermetic type non-oxidation of the present utility model shown in the drawings describes the low-voltage electrical apparatus that hermetic type of the present utility model has working contact in detail.
As shown in Figure 1, airtight non-oxidation of the present utility model does not have the arcing A.C. contactor, comprises a sealed chamber of being made up of loam cake 1 and base 2, and coil lead pin 4 and fixed contact terminal pin 13 are housed outside sealed chamber.
As shown in Figure 2, the electromagnetism work system is housed in sealed chamber, described electromagnetism work system comprises armature 7, yoke 8, coil 6, and yoke 8 and solenoid 6 are installed on the base, and armature 7 drives the contact bridge activity.The contact work system also is housed in sealed chamber, and described contact work system comprises: moving contact 10, fixed contact 3 and stage clip 12, the contact work system realizes the break-make task of A.C. contactor.
Direct current chemical control system coil also is housed in sealed chamber, described control coil comprises economizer circuit plate (not shown in the accompanying drawing) and dc coil 6, its function is: rectification circuit is converted to direct current with alternating current and loads on dc coil, make contactor realize that AC and DC is general, firm and hard the energy-saving and cost-reducing of product that show of economizer circuit.
The operation principle of the embodiment of A.C. contactor of the present utility model is described below in conjunction with Fig. 2.Energizing quantity is by coil lead pin 4 input solenoids 6, the electromagnetism work system of being made up of solenoid 6, yoke 8, armature 7 produces magnetic field because of the input of energizing quantity, armature 7 overcomes the elastic force of stage clip 12 and does closing motion with respect to yoke 8 under the effect of magnetic force, meanwhile, armature 7 drives moving contact 10 and makes closing motion with respect to fixed contact 3, thereby realizes the closure of contactor; When removing energizing quantity, magnetic field in the electromagnetism work system disappears because of the removal of energizing quantity, the magnetic force that just overcomes the elastic force of stage clip 12 is eliminated, thereby under the elastic force effect of stage clip 12, armature 7 is done disengaging movement with respect to yoke 8, meanwhile, armature 7 drives the disengaging movement of moving contact 10 works and fixed contact 3, thereby realizes the separation of contactor.
The loam cake 1 of A.C. contactor embodiment of the present utility model is as follows with the design feature that base 2 forms sealed chamber: as Fig. 2, shown in Figure 3, on the edge of loam cake 1 and composition surface that base 2 is connected, a circle groove 5 is arranged, on the edge of base 2 and composition surface that loam cake 1 is connected, a circle projection 11 is arranged, by the groove 5 on the 11 embedding loam cakes 1 of the projection on the base 2, loam cake 1 and base 2 be tightly connected is one, thereby forms sealed chamber.
The loam cake 1 of the embodiment of A.C. contactor of the present utility model is as follows with the sealed characteristic on the composition surface of base 2: as Fig. 2, shown in Figure 3, in the groove 5 of loam cake 1, filled with fluid sealant 9, use groove and contain the principle of glue, the composition surface of groove 5 and projection 11 is sealed tightly be bonded as one.
As Fig. 2, shown in Figure 3, the fixed contact 3 in the contact lead element 14 of the embodiment of the utility model A.C. contactor, one end and sealed chamber is an one, and the other end is fixedlyed connected with the fixed contact terminal pin 13 outside the sealed chamber.When described contact lead element 14 is outwards drawn in sealed chamber, the intermediate portion is located with the composition surface of the projection 11 of base 2 at the groove 5 by loam cake 1, make the curved shape that is complementary with convex-concave surface, its sweep snaps in the breach of loam cake 1, and when passing through the composition surface of loam cake 1 and base 2, be hidden in fully in the fluid sealant 9 in the groove, the tight sealing in composition surface of the surface of the sweep of lead elements and production method thereof 14 and groove 5, projection 11 is bonded as one.
Similarly, the coil 6 in an end of described coil lead element (not shown in the accompanying drawing) and the sealed chamber is electrically connected, and the other end is fixedlyed connected with sealed chamber coil lead pin 4 outward.The structure that is tightly connected that structure and contact lead element outwards draw in the sealed chamber that is tightly connected that described coil lead element is outwards drawn in the sealed chamber is identical, does not repeat them here.
The low-voltage electrical apparatus that hermetic type of the present utility model has a working contact is not limited to the non-oxidation of above-mentioned specific embodiment does not have the arcing A.C. contactor.
Claims (5)
1. a hermetic type has the low-voltage electrical apparatus of working contact, described low-voltage electrical apparatus comprises the sealed chamber of being made up of a loam cake (1) and a base (2), in described sealed chamber, the electromagnetism work system is housed, contact work system and the rectification economizer circuit plate be made up of moving contact (10), fixed contact (3), stage clip (12) are housed, be externally connected with fixed contact terminal pin (13) and coil lead pin (4) at sealed chamber
It is characterized in that:
On mutual opposed two composition surfaces of described loam cake (1) and base (2), one of them composition surface is groove structure (5), and another composition surface is bulge-structure (11);
Groove structure by described two composition surfaces cooperates with the embedding of bulge-structure, and loam cake (1) and base (2) are tightly connected mutually is one, forms sealed chamber;
When fixed contact lead elements and production method thereof (14) that is used to be electrically connected and coil lead element are drawn outside sealed chamber in the sealed chamber, it is at the composition surface place of groove (5) with projection (11), along convex-concave surface and crooked matchingly with convex-concave surface, make the curved shape that is complementary with convex-concave surface, its sweep snaps in the breach (5) of described groove structure, and when passing through the composition surface of loam cake (1) and base (2), be hidden in fully in the fluid sealant in the described groove (5);
With glue the seam gap sealing between described two engage grooves faces and the bump bonds face is sealed, the sweep of convex portion, contact lead element and the coil lead element of projection (11) is hidden by the fluid sealant (9) in the groove (5) fully, thereby be one the crooked composition surface adhesive sealing of described engage grooves face, bump bonds face, contact lead element and coil lead element.
2. have the low-voltage electrical apparatus of working contact according to the hermetic type of claim 1, it is characterized in that: described contact lead element (14) is same parts with fixed contact (3), fixed contact terminal pin (13), also can be divided into two or more parts.
3. have the low-voltage electrical apparatus of working contact according to the hermetic type of claim 1, it is characterized in that: described coil lead element and coil lead pin (4) are same parts, also can be divided into two or more parts.
4. have the low-voltage electrical apparatus of working contact according to the hermetic type of claim 1, it is characterized in that: loam cake (1), the base (2) of forming sealed chamber are made by the pressing mold plastics.
5. have the low-voltage electrical apparatus of working contact according to the hermetic type of claim 1, it is characterized in that: the air pressure of the inert gas of filling in the sealed chamber that anaerobic is handled equates with the atmospheric pressure outside the sealed chamber, or keeps the inside and outside air pressure balance of sealed chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620124717 CN200962406Y (en) | 2006-07-03 | 2006-07-03 | Gas sealing low voltage electrical appliance with the operation contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620124717 CN200962406Y (en) | 2006-07-03 | 2006-07-03 | Gas sealing low voltage electrical appliance with the operation contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200962406Y true CN200962406Y (en) | 2007-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620124717 Expired - Lifetime CN200962406Y (en) | 2006-07-03 | 2006-07-03 | Gas sealing low voltage electrical appliance with the operation contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200962406Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531367A (en) * | 2012-06-29 | 2014-01-22 | Ls产电株式会社 | Electronic switch |
| CN109119293A (en) * | 2018-09-10 | 2019-01-01 | 上海良信电器股份有限公司 | A kind of D.C. contactor contact system and the D.C. contactor |
| CN109244709A (en) * | 2018-09-17 | 2019-01-18 | 浙江正泰电器股份有限公司 | conversion connector |
-
2006
- 2006-07-03 CN CN 200620124717 patent/CN200962406Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531367A (en) * | 2012-06-29 | 2014-01-22 | Ls产电株式会社 | Electronic switch |
| CN103531367B (en) * | 2012-06-29 | 2016-03-30 | Ls产电株式会社 | Electronic switch |
| CN109119293A (en) * | 2018-09-10 | 2019-01-01 | 上海良信电器股份有限公司 | A kind of D.C. contactor contact system and the D.C. contactor |
| CN109119293B (en) * | 2018-09-10 | 2024-03-15 | 上海良信电器股份有限公司 | Direct current contactor contact system and direct current contactor |
| CN109244709A (en) * | 2018-09-17 | 2019-01-18 | 浙江正泰电器股份有限公司 | conversion connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG ZHENGTAI ELECTRIC APPLIANCE CO., LTD. Free format text: FORMER OWNER: CORRECT ZHENGTAI GROUP CO., LTD. Effective date: 20070907 |
|
| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070907 Address after: 325603 CHINT Industrial Park, North white elephant, Zhejiang, Yueqing Patentee after: Zhengtai Electric Appliance Co., Ltd., Zhejiang Address before: 325603 CHINT Industrial Park, North white elephant, Zhejiang, Yueqing Patentee before: Chint Group Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060703 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |