CN205335187U - High voltage direct current vacuum relay - Google Patents
High voltage direct current vacuum relay Download PDFInfo
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- CN205335187U CN205335187U CN201620028609.4U CN201620028609U CN205335187U CN 205335187 U CN205335187 U CN 205335187U CN 201620028609 U CN201620028609 U CN 201620028609U CN 205335187 U CN205335187 U CN 205335187U
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Abstract
The utility model belongs to the technical field of the relay technique and specifically relates to indicate a high voltage direct current vacuum relay, including contact mechanism, pushing mechanism, ceramic cavity and outer magnetic circuit mechanism, contact mechanism includes the terminal, the terminal is fixed on ceramic cavity, and the one end of terminal is introduced in the ceramic cavity, outer magnetic circuit mechanism fixes outside ceramic cavity, pushing mechanism including down push rod, iron core, pottery porcelain ring, go up the push rod and with the one end complex moving point piece of terminal, pottery porcelain ring locates between push rod and the lower push rod, the upper end at last push rod is fixed to the moving point piece, the periphery of push rod under is fixed to the iron core, makes under iron core magnetic circuit mechanism's outside the effect down the push rod to the inside removal of ceramic cavity to promote pottery porcelain ring and last push rod and move, make the moving point piece with the one end butt of terminal. Thereby pushing mechanism can not produce the friction to ceramic member and generate the powder in the internal portion of electric appliance cavity that continues in the function, cause unexpected emergence.
Description
Technical field
This utility model relates to relay technical field, refers in particular to a kind of voltage DC vacuum relay with high。
Background technology
Development along with modern industrial technology, automatization has all progressively been carried out in various fields, for ensureing Electrical Safety and ensureing output, relay switched voltage and switching current requirements is more and more higher, as: the occasions such as the control of electric vehicle, motor vehicle driven by mixed power, fuel-cell vehicle, construction machine, power management, charge and discharge device, VFC, solar power system, welding equipment, elevator。And traditional relay is by self manufacturing technology, the restriction that particularly contactor gap is little, when connecting high-voltage alternating, HVDC, big direct current generator, low-power factor inductive load, relay contact is very easy to occur that adhesive failure or the continuous arcing contact system that makes a fire lost efficacy。
The relay of prior art generally adopts pottery as the insulant of motion, ceramic member is located between catch bar and dynamic some block, this simple in construction and be easy to processing, less costly, but when the pushing mechanism of relay of this structure is when overtravel duty, ceramic member can produce powder because of friction, and when relay works, the internal powder existed can cause unexpected generation。
Utility model content
This utility model can cause unexpected problem because ceramic member friction produces powder for the pushing mechanism of prior art when overtravel duty, it is provided that a kind of voltage DC vacuum relay with high, this utility model adopts the following technical scheme that
A kind of voltage DC vacuum relay with high, including contact mechanism, pushing mechanism, ceramic cavity and external magnetic circuit mechanism；Described contact mechanism includes binding post, and described binding post is fixed on ceramic cavity, and one end of binding post is incorporated in ceramic cavity；Described external magnetic circuit mechanism is fixed on outside ceramic cavity；Described pushing mechanism includes lower push-rod, iron core, ceramic ring, upper push-rod and the dynamic some block with the one end fits of described binding post；Described ceramic ring is located between upper push-rod and lower push-rod；Described dynamic some block is fixed on the upper end of upper push-rod；Described iron core is fixed on the periphery of lower push-rod, making lower push-rod internal mobile to ceramic cavity, thus promoting ceramic ring and upper push-rod to move, making described dynamic some block abut with one end of described binding post under the effect of iron core magnetic path outside。
Wherein, the upper end of described upper push-rod is additionally provided with back-up ring and dynamic some block pad；Described dynamic some block is fastened between described back-up ring and described dynamic some block pad。
Wherein, described ceramic cavity includes ceramic shield, fixed mount and yoke plate；Described yoke plate is as base, and described fixed mount is fixedly connected on described yoke plate, and described ceramic shield is fixedly connected on described fixed mount, makes ceramic cavity be internally formed airtight accommodation space；Described yoke plate is provided with mean for the through hole of described pushing mechanism motion。
Further, described iron core includes dynamic iron core and static iron core；Described dynamic iron core sleeve is located at the lower end of described lower push-rod；Described static iron core is fixed on the lower surface of described yoke plate；It is fixed with back-moving spring between described dynamic iron core and static iron core。
Wherein, described pushing mechanism also includes the lower push-rod chain of rings；The described lower push-rod chain of rings is fixedly connected on the lower surface of described ceramic ring and forms accommodation space, and the upper end of described lower push-rod is fastened in described accommodation space；The lower surface of described upper push-rod is fixing with the upper surface of described ceramic ring to be connected。
Further, it is provided with rubber blanket between the described lower push-rod chain of rings and ceramic cavity。
Wherein, excess of stroke spring also it is arranged with between described ceramic ring and described dynamic some block。
Wherein, the blowout magnet that the electric arc that voltage DC vacuum relay with high also includes that described dynamic some block and described binding post are produced blows, described blowout magnet is fixed on outside described ceramic cavity。
The beneficial effects of the utility model: this utility model can work for a long time under the high voltage environment of more than 400V, ceramic ring in pushing mechanism plays insulation and the effect of conduction thrust, ceramic ring is arranged between upper push-rod and lower push-rod by this utility model, and this structure makes pushing mechanism ceramic member will not be produced friction in running thus avoiding generating powder to cause unexpected generation in relay inside cavity。Except possessing above-mentioned beneficial effect, this utility model has the further advantage that simple in construction, compact, volume is little, lightweight, anti-vibration is strong with impact property, and technical process is simple, and parts are prone to processing, it is respectively provided with good electrovacuum performance, ensure that the vacuum of job demand in vacuum cavity, and production cost is low, it is possible to high-volume production line balance。
Accompanying drawing explanation
Fig. 1 is top view of the present utility model。
Fig. 2 be along Fig. 1 line A-A cut open figure。
Accompanying drawing labelling in Fig. 1 to Fig. 2 includes:
1-upper push-rod 2-ceramic ring 3-lower push-rod 4-dynamic some block 5-static iron core
6-dynamic iron core 7-back-moving spring 8-external magnetic circuit mechanism 9-back-up ring
10-dynamic some block pad 11-excess of stroke spring 12-binding post 13-lower push-rod is a chain of
14-rubber blanket 15-yoke plate 16-fixed mount 17-ceramic shield 18-blowout magnet。
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment and accompanying drawing, this utility model being further described, the content that embodiment is mentioned is not to restriction of the present utility model。Below in conjunction with accompanying drawing, this utility model is described in detail:
As Figure 1-Figure 2: a kind of voltage DC vacuum relay with high, including contact mechanism, pushing mechanism, ceramic cavity and external magnetic circuit mechanism 8；Described contact mechanism includes binding post 12, and described binding post 12 is fixed on ceramic cavity, and one end of binding post 12 is incorporated in ceramic cavity；Described external magnetic circuit mechanism 8 is fixed on outside ceramic cavity；Described pushing mechanism includes dynamic some block 4 of lower push-rod 3, iron core, ceramic ring 2, upper push-rod 1 and the one end fits with described binding post 12；Described ceramic ring 2 is located between upper push-rod 1 and lower push-rod 3；Described dynamic some block 4 is fixed on the upper end of upper push-rod 1；Described iron core is fixed on the periphery of lower push-rod 3, make lower push-rod 3 internal mobile to ceramic cavity under the effect of iron core magnetic path 8 outside, thus promoting ceramic ring 2 and upper push-rod 1 to move, making described dynamic some block 4 abut with one end of described binding post 12, forming conducting loop。This utility model adopts the structure that ceramic ring 2 completely cuts off upper push-rod 1 and lower push-rod 3 to substitute the integrated catch bar that relay of the prior art is conventional, ceramic ring 2 serves effect lower push-rod 3 and dynamic some block 4 insulated and the effect that the thrust of lower push-rod 3 is transmitted to upper push-rod 1, and avoid pushing mechanism ceramic member in the duty of overtravel and cause accident because friction produces powder, compact conformation, take up room little, processing simplicity。
In the present embodiment, the upper end of described upper push-rod 1 is additionally provided with back-up ring 9 and dynamic some block pad 10；Described dynamic some block 4 is fastened between described back-up ring 9 and described dynamic some block pad 10。Being provided with of back-up ring 9 and dynamic some block pad 10 helps dynamic some block 4 and can remain stable for when abutting binding post 12, and a dynamic some block 4 will not be caused to come off from upper push-rod 1 because lever force is excessive, it is ensured that the work safety of product, reliable。
In the present embodiment, described ceramic cavity includes ceramic shield 17, fixed mount 16 and yoke plate 15；Described yoke plate 15 is as base, and described fixed mount 16 is fixedly connected on described yoke plate 15, and described ceramic shield 17 is fixedly connected on described fixed mount 16, makes ceramic cavity be internally formed airtight accommodation space；Described yoke plate 15 is provided with mean for the through hole of described pushing mechanism motion。Concrete, fixed mount 16 is welded on yoke plate 15 by preferential employing, ceramic shield 17 is welded on fixed mount 16。Ceramic cavity is filled with H2Deng protective gas, discharge oxygen gas and form airtight space, it is ensured that product is for a long time at the job demand switching big electric current, DC high voltage load。
Wherein, described iron core includes dynamic iron core 6 and static iron core 5；Described dynamic iron core 6 is set in the lower end of described lower push-rod 3；Described static iron core 5 is fixed on the lower surface of described yoke plate 15；It is fixed with back-moving spring 7 between described dynamic iron core 6 and static iron core 5。Moving to static iron core 5 under the effect of dynamic iron core 6 magnetic path outside, thus promoting lower push-rod 3 internal mobile to ceramic cavity, and bringing a series of actions of pushing mechanism subsequently；When external magnetic circuit mechanism fails, back-moving spring will promote dynamic iron core 6 to reset, so that pushing mechanism integral reset, dynamic some block 4 disconnects with binding post 12。
In the present embodiment, described pushing mechanism also includes the lower push-rod chain of rings 13；The described lower push-rod chain of rings 13 is fixedly connected on the lower surface of described ceramic ring 2 and forms accommodation space, and the upper end of described lower push-rod 3 is fastened in described accommodation space；The lower surface of described upper push-rod 1 is fixing with the upper surface of described ceramic ring 2 to be connected。Concrete, preferentially adopt the lower surface that the lower push-rod chain of rings 13 is welded on ceramic ring 2, the upper surface of the lower surface of upper push-rod 1 Yu ceramic ring 2 is welded together, naturally it is also possible to adopt other fixing connected mode depending on concrete applicable cases。The upper surface of the lower push-rod chain of rings 13 is fixing with ceramic ring 2 to be connected, and the lower surface of the lower push-rod chain of rings 13 is provided with card and sets the accommodation space of push rod 3。The Hard link of pushing mechanism entirety can guarantee that pushing mechanism will not produce deviation when action, it is ensured that the power transfer efficiency of pushing mechanism, extends the pushing mechanism life-span。
Wherein, it is provided with rubber blanket 14 between described lower push-rod a chain of 13 and ceramic cavity。The overall rapid movement downwards of pushing mechanism meeting when product current interruption, cause the shock with ceramic cavity, it is provided with rubber blanket 14 between lower push-rod a chain of 13 and ceramic cavity and can effectively cushion the impulsive force of pushing mechanism, prevent the overall rebound of pushing mechanism, ensure the working stability of parts, extend product service life。
In the present embodiment, excess of stroke spring 11 also it is arranged with between described ceramic ring 2 and described dynamic some block 4。Product in use binding post 12 can inevitably be subject to a degree of abrasion, arranging of excess of stroke spring 11 additionally can provide a thrust for pushing mechanism, ensure that depositing a dynamic some block 4 in case of wearing at binding post 12 remains to abut binding post 12 tightly and form stable electrical connection, ensure to abut pressure, reduce operating resistance。
In the present embodiment, the blowout magnet 18 that the electric arc that voltage DC vacuum relay with high also includes that described dynamic some block 4 and described binding post 12 are produced blows, described blowout magnet 18 is fixed on outside described ceramic cavity。Being provided with of blowout magnet 18 helps the electric arc of generation when big current work environment blowing down disconnecting terminal 12 disconnects with dynamic some block 4, increases the disconnection efficiency of binding post 12 and dynamic some block 4, it is ensured that product energy normal operation。
The above, it it is only this utility model preferred embodiment, not this utility model is done any pro forma restriction, although this utility model is with preferred embodiment openly as above, but it is not limited to this utility model, any those skilled in the art, without departing within the scope of technical solutions of the utility model, when the technology contents utilizing the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is without departing from technical solutions of the utility model content, any simple modification that above example is made is referred to according to this utility model technology, equivalent variations and modification, belong in the scope of technical solutions of the utility model。
Claims (8)
1. a voltage DC vacuum relay with high, including contact mechanism, pushing mechanism, ceramic cavity and external magnetic circuit mechanism；Described contact mechanism includes binding post, and described binding post is fixed on ceramic cavity, and one end of binding post is incorporated in ceramic cavity；Described external magnetic circuit mechanism is fixed on outside ceramic cavity；It is characterized in that: described pushing mechanism includes lower push-rod, iron core, ceramic ring, upper push-rod and the dynamic some block with the one end fits of described binding post；Described ceramic ring is located between upper push-rod and lower push-rod；Described dynamic some block is fixed on the upper end of upper push-rod；Described iron core is fixed on the periphery of lower push-rod, making lower push-rod internal mobile to ceramic cavity, thus promoting ceramic ring and upper push-rod to move, making described dynamic some block abut with one end of described binding post under the effect of iron core magnetic path outside。
2. a kind of voltage DC vacuum relay with high according to claim 1, it is characterised in that: the upper end of described upper push-rod is additionally provided with back-up ring and dynamic some block pad；Described dynamic some block is fastened between described back-up ring and described dynamic some block pad。
3. a kind of voltage DC vacuum relay with high according to claim 1, it is characterised in that: described ceramic cavity includes ceramic shield, fixed mount and yoke plate；Described yoke plate is as base, and described fixed mount is fixedly connected on described yoke plate, and described ceramic shield is fixedly connected on described fixed mount, makes ceramic cavity be internally formed airtight accommodation space；Described yoke plate is provided with mean for the through hole of described pushing mechanism motion。
4. a kind of voltage DC vacuum relay with high according to claim 3, it is characterised in that: described iron core includes dynamic iron core and static iron core；Described dynamic iron core sleeve is located at the lower end of described lower push-rod；Described static iron core is fixed on the lower surface of described yoke plate；It is fixed with back-moving spring between described dynamic iron core and static iron core。
5. a kind of voltage DC vacuum relay with high according to claim 1, it is characterised in that: described pushing mechanism also includes the lower push-rod chain of rings；The described lower push-rod chain of rings is fixedly connected on the lower surface of described ceramic ring and forms accommodation space, and the upper end of described lower push-rod is fastened in described accommodation space；The lower surface of described upper push-rod is fixing with the upper surface of described ceramic ring to be connected。
6. a kind of voltage DC vacuum relay with high according to claim 5, it is characterised in that: it is provided with rubber blanket between the described lower push-rod chain of rings and ceramic cavity。
7. a kind of voltage DC vacuum relay with high according to claim 1, it is characterised in that: also it is arranged with excess of stroke spring between described ceramic ring and described dynamic some block。
8. a kind of voltage DC vacuum relay with high according to claim 1, it is characterized in that: the blowout magnet that the electric arc that voltage DC vacuum relay with high also includes that described dynamic some block and described binding post are produced blows, described blowout magnet is fixed on outside described ceramic cavity。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620028609.4U CN205335187U (en) | 2016-01-13 | 2016-01-13 | High voltage direct current vacuum relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620028609.4U CN205335187U (en) | 2016-01-13 | 2016-01-13 | High voltage direct current vacuum relay |
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| Publication Number | Publication Date |
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| CN205335187U true CN205335187U (en) | 2016-06-22 |
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| CN201620028609.4U Active CN205335187U (en) | 2016-01-13 | 2016-01-13 | High voltage direct current vacuum relay |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470054A (en) * | 2016-01-13 | 2016-04-06 | 东莞市三友联众电器有限公司 | High-voltage DC vacuum relay |
| CN106449272A (en) * | 2016-09-29 | 2017-02-22 | 厦门宏发电力电器有限公司 | Fixed structure for ceramic cover and yoke iron plate of direct current contactor |
| CN106449279A (en) * | 2016-10-26 | 2017-02-22 | 厦门宏发电力电器有限公司 | A DC contactor with auxiliary contacts |
| US11164711B2 (en) | 2016-09-29 | 2021-11-02 | Xiamen Hongfa Electric Power Controls Co., Ltd. | DC contactor with dual micro switches |
-
2016
- 2016-01-13 CN CN201620028609.4U patent/CN205335187U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470054A (en) * | 2016-01-13 | 2016-04-06 | 东莞市三友联众电器有限公司 | High-voltage DC vacuum relay |
| CN106449272A (en) * | 2016-09-29 | 2017-02-22 | 厦门宏发电力电器有限公司 | Fixed structure for ceramic cover and yoke iron plate of direct current contactor |
| CN106449272B (en) * | 2016-09-29 | 2019-05-17 | 厦门宏发电力电器有限公司 | A kind of fixed structure of the ceramic shield of D.C. contactor and yoke plate |
| US11164711B2 (en) | 2016-09-29 | 2021-11-02 | Xiamen Hongfa Electric Power Controls Co., Ltd. | DC contactor with dual micro switches |
| CN106449279A (en) * | 2016-10-26 | 2017-02-22 | 厦门宏发电力电器有限公司 | A DC contactor with auxiliary contacts |
| CN106449279B (en) * | 2016-10-26 | 2019-01-01 | 厦门宏发电力电器有限公司 | A kind of D.C. contactor with auxiliary contact |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 523000 No. two, No. 27, Putian Lake Center, Tangxia Town, Guangdong, Dongguan Patentee after: Lianzhong Sanyou group Limited by Share Ltd Address before: 523000, Tangxia Town, Dongguan, Guangdong, Putian City, Hutang Putian West Road No. 62 Patentee before: Dongguan Sanyou Electrical Appliances Co., Ltd. |