CN212136360U - 400A group of normally closed novel direct current contactors - Google Patents
400A group of normally closed novel direct current contactors Download PDFInfo
- Publication number
- CN212136360U CN212136360U CN202021094988.XU CN202021094988U CN212136360U CN 212136360 U CN212136360 U CN 212136360U CN 202021094988 U CN202021094988 U CN 202021094988U CN 212136360 U CN212136360 U CN 212136360U
- Authority
- CN
- China
- Prior art keywords
- contact
- iron core
- direct current
- movable
- subassembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a novel direct current contactor of a set of normally closed of 400A, including the direct current contactor body, the direct current contactor body includes base, contact system and electromagnetic system, and the contact system includes base subassembly, static contact subassembly and movable contact subassembly, and the base unit mount is in the base upper end, and the static contact unit mount is in the base subassembly, its characterized in that: the movable contact assembly comprises a movable contact plate, a contact spring, a contact bushing, an insulating bushing and a fixing piece, wherein the insulating bushing is installed on the contact spring, a movable space is formed between the contact bushing and the insulating bushing, the movable contact plate is installed in the movable space, the thickness of the movable contact plate is smaller than the height of the movable space so as to form that the movable contact plate has a movable interval, and the contact bushing is installed at the end part of the iron core through the fixing piece. The scheme has the advantages of shortening the breaking time of the product contact, prolonging the electric service life of the product, increasing the contact gap, and improving the insulation and voltage resistance of the main contact so as to meet the use requirement on wind energy.
Description
Technical Field
The utility model relates to a direct current contactor especially relates to the novel direct current contactor of a set of normal close of 400A.
Background
An original set of normally closed direct current contactor is widely applied to the fields of communication, engineering machinery, frequency converters and the like, but the appearance, the installation size, the load bearing capacity and the insulation and voltage resistance of a product are limited.
In recent years, with the rapid development of wind energy, the requirements are higher and higher, a normally closed direct current contactor is required to meet the requirements of no breakdown of high current 400A, high voltage 120VDC and medium withstand voltage 3000VAC/50Hz 1min, and in order to meet the use requirements on wind energy, a novel normally closed direct current contactor is developed to meet the requirements. In view of the above disadvantages, the present solution proposes improvements.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel direct current contactor of 400A a set of normal close has solved the above-mentioned problem that exists in the use among the prior art, can promote the popularization of applications such as telemedicine, industrial control, autopilot, wisdom city, wisdom house greatly.
The existing group of normally closed direct current contactors in the market is complex in structure, usually adopts a double-coil structure, the contact opening distance is small (usually less than 3 mm), the bearable main loop load is 400A multiplied by 48VDC, the medium withstand voltage of the main contact and an electromagnetic system can be up to 2000VAC/50Hz 1min without breakdown, and the requirements of use on wind energy are far higher than those of the group of normally closed direct current contactors in the market.
The technical scheme of the utility model is realized like this:
400A novel direct current contactor of a set of normal close, including the direct current contactor body, the direct current contactor body includes base, contact system and electromagnetic system, and the contact system includes base subassembly, static contact subassembly and movable contact subassembly, and the base unit mount is in the base upper end, and the static contact unit mount is at the base subassembly, and the movable contact unit mount is in static contact subassembly below and through electromagnetic system realize reciprocate in order to realize with the static contact subassembly contact actuation, its characterized in that:
the movable contact assembly comprises a movable contact plate, a contact spring, a contact bushing, an insulating bushing and a fixing piece, the movable contact plate is provided with a movable contact, the iron core is provided with a limit ring platform and is divided into an upper iron core and a lower iron core through the limit ring platform, the lower iron core is arranged in the electromagnetic system, the diameter of the upper iron core is smaller than that of the lower iron core, the end face of the limit ring platform is provided with an insulating washer, the insulating washer is provided with a contact spring, the contact spring is provided with an insulating bush, the insulating bush is sleeved on the upper iron core, a mounting area is reserved between the insulating bush and the iron core, the lower end of the contact bush extends into the mounting area to be matched, a movable space is formed between the contact bush and the insulating bush, the movable contact plate is mounted in the movable space, the thickness of the moving contact plate is smaller than the height of the movable space so as to form a movable interval of the moving contact plate, and the contact bush is arranged at the end part of the iron core through a fixing piece.
Through the above scheme, the moving contact can reciprocate between contact bush and insulating bush, do not receive the restraint of other parts, such structural advantage is, the coil is when the circular telegram, the moving contact is under the effect of displacement distance between overstroke and contact bush and insulating bush, the iron core just begins to move a section distance, moving contact and stationary contact have not disconnected yet, along with the magnetic gap reduces, the magnetic resistance is also reducing, the electromagnetic force increases, can break off the contact in the twinkling of an eye, in addition stretch electric arc under arc extinguishing system's permanent magnet effect, shorten the breaking time of product contact, can improve the electric life of product, in addition can also increase the contact clearance, improve the withstand voltage of main contact.
The design of the contact bush and the insulating bush structure can increase the withstand voltage of the medium withstand voltage medium of the electromagnetic system and the contact system, and the withstand voltage medium can bear 3000VAC/50Hz 1min without breakdown.
Preferably, electromagnetic system includes electromagnet assembly, and electromagnet assembly includes bottom plate, yoke subassembly, coil former, iron core, magnetic pole seat, and coil winding is installed to the coil former, and coil assembly is constituteed to coil former and coil winding, and coil assembly passes through the bottom plate shutoff in the yoke subassembly, installs the magnetic pole seat in the yoke subassembly, installs the return spring under magnetic pole seat terminal surface and the iron core between the terminal surface, the iron core connect the iron core.
Preferably, the base assembly comprises a base and a locking assembly, the static contact assembly comprises a static contact column and a static contact point, and the static contact column is mounted on the base through the locking assembly.
Preferably, the core and the pole holder are both on the same axis.
Preferably, the fixing piece comprises a guide pipe, a flat gasket and a self-locking nut, the guide pipe is sleeved on the outer end face of the upper iron core, the guide pipe sleeve is fixed through the self-locking nut, and the flat gasket is placed between the end part of the guide pipe sleeve and the self-locking nut.
Preferably, the locking assembly comprises a flat pad, a spring pad and a nut mounted in sequence.
Preferably, an arc extinguishing system is further mounted on the housing and located on two sides of the stationary contact.
Preferably, the arc extinguishing system comprises a permanent magnet, and the permanent magnetic field is formed by adding the permanent magnet.
In conclusion, the scheme has a simple structure, and through reasonable design, the moving contact can move up and down between the contact bushing and the insulating bushing and is not constrained by other components. The structures of the contact bush and the insulating bush and the matching design between the contact bush and the insulating bush can increase the medium withstand voltage of the electromagnetic system and the contact system.
The structure of the redesigned product adopts a single coil, the contact opening distance (larger than or equal to 4 mm) is increased, the contact system increases the load of a main circuit of a horizontal blowing magnetic field by 400A multiplied by 120VDC, the dielectric withstand voltage between the contact system and an electromagnetic system is improved, and the dielectric withstand voltage can bear 3000VAC/50Hz 1min without breakdown.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is an overall structure schematic diagram of a group of normally closed novel direct current contactors of the utility model 400A;
fig. 2 is a schematic structural view of the base assembly of the present invention;
FIG. 3 is a schematic diagram of a configuration of an electromagnetic system;
FIG. 4 is a schematic view of a portion of the enlarged structure at A in FIG. 1;
fig. 5 is a partially enlarged schematic view of a portion a in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 5 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Examples
As shown in fig. 1 to 5, the present embodiment discloses that a group of normally closed dc contactors adopts a single coil structure, and is composed of three major parts, namely a contact system, an arc extinguishing system and an electromagnetic system.
A400A group of novel normally closed direct current contactors has the following specific scheme:
comprises a direct current contactor body, the direct current contactor body comprises a base 2, a contact system 4 and an electromagnetic system 1, the contact system comprises a base component, a static contact component and a movable contact component, the base component is arranged at the upper end of the base, the static contact component is arranged in the base component, the movable contact component is arranged below the static contact component and moves up and down through the electromagnetic system to realize contact attraction with the static contact component,
the movable contact assembly comprises an iron core, a movable contact plate 3, a contact spring 6, a contact bushing 8, an insulating bushing 7 and a fixing piece, wherein the movable contact plate is provided with a movable contact, the iron core is provided with a limit ring platform 14, the iron core is divided into an upper iron core 12 and a lower iron core 1.7 through the limit ring platform, the lower iron core 1.7 is arranged in the electromagnetic system, the diameter of the upper iron core is smaller than that of the lower iron core, an insulating gasket 5 is arranged on the end surface of the limit ring platform, the contact spring 6 is arranged on the insulating gasket 5, the insulating bushing 7 is arranged on the contact spring 6, the insulating bushing 7 is sleeved on the upper iron core 12, a mounting area is reserved between the upper iron core and the iron core, the lower end 8.1 of the contact bushing extends into the mounting area to be matched, a movable space C is formed between the contact bushing and the insulating bushing, the movable contact plate 3 is arranged in the movable space C, the thickness D of the movable, the contact bush is mounted on the end of the iron core through a fixing piece. The iron core and the magnetic pole seat 1.2 are all positioned on the same axis.
The fixing piece comprises a guide pipe 9, a flat gasket 11 and a self-locking nut 10, the guide pipe is sleeved on the outer end face of the upper iron core, the guide pipe sleeve is fixed through the self-locking nut, and the flat gasket is placed between the end part of the guide pipe sleeve and the self-locking nut.
The above scheme is explained as follows: the moving contact can reciprocate between contact bush and insulating bush, do not receive the restraint of other parts, such structure advantage is, the coil is when the circular telegram, the moving contact is under the effect of displacement distance between overstroke and contact bush and the insulating bush, just begin to move a section distance B, moving contact and stationary contact have not disconnected yet, along with the magnetic gap reduces, the magnetic resistance is also reducing, the electromagnetic force increases, can break off the contact in the twinkling of an eye, in addition stretch electric arc under the permanent magnet effect of arc extinguishing system, shorten the breaking time of product contact, can improve the electric life of product, in addition can also increase the contact clearance, improve the withstand voltage of main contact's insulation.
The design of the contact bush and the insulating bush structure can increase the withstand voltage of the medium withstand voltage medium of the electromagnetic system and the contact system, and the withstand voltage medium can bear 3000VAC/50Hz 1min without breakdown.
Electromagnetic system includes electromagnet assembly, electromagnet assembly includes bottom plate 1.5, yoke subassembly 1.1, coil former 1.9, magnetic pole seat 1.2, coil former 1.9 installation coil winding, coil assembly is constituteed to coil former and coil winding, coil assembly is the single coil structure, coil assembly passes through bottom plate 1.5 shutoff in the yoke subassembly, install magnetic pole seat 1.2 in the yoke subassembly, install return spring 1.4 under magnetic pole seat 1.2 terminal surface and the lower iron core between the terminal surface, in order to improve stability, install magnetic sleeve 1.6 and sleeve pipe 1.8 between coil assembly and the lower iron core.
In order to improve the stability and reliability of the product, the base component comprises a base and a locking component, the static contact component comprises a static contact column 4.2 and a static contact point 4.6, the static contact column is installed on the base 4.1 through the locking component, and preferably, the locking component comprises a flat pad 4.3, an elastic pad 4.4 and a nut 4.5 which are installed in sequence.
In order to prolong the service life and improve the safety, an arc extinguishing system is further installed on the housing and is positioned on two sides of the stationary contact. The arc extinguishing system comprises a permanent magnet, and a permanent magnetic field is formed by adding the permanent magnet.
The working principle of the design; the coil is electrified, the iron core and the magnetic pole are closed under the action of electromagnetic force, the tension of the return spring is overcome, and the iron core drives the moving contact to be disconnected with the fixed contact; and when the coil is powered off, the electromagnetic force disappears, the iron core is disconnected with the magnetic pole under the action of the tension of the return spring, and the iron core drives the moving contact and the static contact to be closed.
The utility model that should point out simultaneously indicates the terminology, like: the directional or positional relationships indicated as "front", "rear", "vertical", "horizontal", etc. are based on the directional or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the invention.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1.400A novel direct current contactor of a set of normal close, including the direct current contactor body, the direct current contactor body includes base, contact system and electromagnetic system, and the contact system includes base subassembly, static contact subassembly and movable contact subassembly, and the base unit mount is in the base upper end, and the static contact unit mount is at the base subassembly, and the movable contact unit mount is in static contact subassembly below and through electromagnetic system realize reciprocate in order to realize with the static contact subassembly contacts actuation, its characterized in that:
the movable contact assembly comprises a movable contact plate, a contact spring, a contact bushing, an insulating bushing and a fixing piece, the movable contact plate is provided with a movable contact, the iron core is provided with a limit ring platform and is divided into an upper iron core and a lower iron core through the limit ring platform, the lower iron core is arranged in the electromagnetic system, the diameter of the upper iron core is smaller than that of the lower iron core, the end face of the limit ring platform is provided with an insulating washer, the insulating washer is provided with a contact spring, the contact spring is provided with an insulating bush, the insulating bush is sleeved on the upper iron core, a mounting area is reserved between the insulating bush and the iron core, the lower end of the contact bush extends into the mounting area to be matched, a movable space is formed between the contact bush and the insulating bush, the movable contact plate is mounted in the movable space, the thickness of the moving contact plate is smaller than the height of the movable space so as to form a movable interval of the moving contact plate, and the contact bush is installed at the end part of the upper iron core through a fixing piece.
2. The set of 400A normally closed novel direct current contactors of claim 1, wherein: electromagnetic system includes electromagnet assembly, and electromagnet assembly includes bottom plate, yoke subassembly, coil former, iron core, magnetic pole seat, and coil winding is installed to the coil former, and coil assembly is constituteed to coil former and coil winding, and coil assembly passes through the bottom plate shutoff and installs the magnetic pole seat in the yoke subassembly, installs return spring under magnetic pole seat terminal surface and the iron core between the terminal surface, the iron core connect the iron core.
3. The set of 400A normally closed novel direct current contactors of claim 2, wherein: the base component comprises a base and a locking component, the static contact component comprises a static contact column and a static contact point, and the static contact column is installed on the base through the locking component.
4. The set of 400A normally closed novel direct current contactors of claim 3, wherein: the iron core and the magnetic pole seat are both positioned on the same axis.
5. The set of 400A normally closed novel direct current contactors of claim 1, wherein: the fixing piece comprises a guide pipe, a flat gasket and a self-locking nut, the guide pipe is sleeved on the outer end face of the upper iron core, the guide pipe sleeve is fixed through the self-locking nut, and the flat gasket is placed between the end part of the guide pipe sleeve and the self-locking nut.
6. The set of 400A normally closed novel direct current contactors of claim 1, wherein: the locking assembly comprises a flat pad, an elastic pad and a nut which are sequentially installed.
7. The set of 400A normally closed novel direct current contactors of any one of claims 1-6, wherein: and an arc extinguishing system is also installed and is positioned on two sides of the stationary contact.
8. The set of 400A normally closed novel direct current contactors of claim 7, wherein: the arc extinguishing system comprises a permanent magnet, and a permanent magnetic field is formed by adding the permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021094988.XU CN212136360U (en) | 2020-06-13 | 2020-06-13 | 400A group of normally closed novel direct current contactors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021094988.XU CN212136360U (en) | 2020-06-13 | 2020-06-13 | 400A group of normally closed novel direct current contactors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212136360U true CN212136360U (en) | 2020-12-11 |
Family
ID=73685983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021094988.XU Active CN212136360U (en) | 2020-06-13 | 2020-06-13 | 400A group of normally closed novel direct current contactors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212136360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115458370A (en) * | 2022-11-09 | 2022-12-09 | 浙江英洛华新能源科技有限公司 | Fixing structure of relay leading-out terminal |
| CN116844919A (en) * | 2023-09-01 | 2023-10-03 | 新乡市景弘电气有限公司 | Electromagnetic relay capable of being rapidly broken |
-
2020
- 2020-06-13 CN CN202021094988.XU patent/CN212136360U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115458370A (en) * | 2022-11-09 | 2022-12-09 | 浙江英洛华新能源科技有限公司 | Fixing structure of relay leading-out terminal |
| CN115458370B (en) * | 2022-11-09 | 2023-02-03 | 浙江英洛华新能源科技有限公司 | Fixing structure of relay leading-out terminal |
| CN116844919A (en) * | 2023-09-01 | 2023-10-03 | 新乡市景弘电气有限公司 | Electromagnetic relay capable of being rapidly broken |
| CN116844919B (en) * | 2023-09-01 | 2024-01-16 | 新乡市景弘电气有限公司 | Electromagnetic relay capable of being rapidly broken |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212136360U (en) | 400A group of normally closed novel direct current contactors | |
| CN104779119A (en) | High-current power supply relay | |
| JP2024513030A (en) | relay | |
| CN108550503B (en) | Direct current contactor | |
| CN212161708U (en) | Contact device and electromagnetic switch | |
| CN212032959U (en) | Direct current relay capable of resisting short-circuit current | |
| CN218385017U (en) | Relay | |
| CN111524750A (en) | 400A group of normally closed novel direct current contactors | |
| CN219040366U (en) | DC contactor with auxiliary contact | |
| CN211578662U (en) | Relay capable of extinguishing electric arc | |
| CN107527772B (en) | Low-voltage three-phase bistable permanent-magnet air switch | |
| CN215680555U (en) | Bridge type loop short-circuit resisting structure and relay | |
| CN219329223U (en) | High-voltage direct-current relay | |
| CN215834478U (en) | Novel movable contact assembly and contactor | |
| CN220526832U (en) | DC relay | |
| US20240087826A1 (en) | Contactor | |
| CN219286298U (en) | Relay set | |
| CN218896593U (en) | Nonpolar magnetic blowing high-voltage direct-current relay | |
| CN216054511U (en) | Easy-to-assemble short-circuit current resistant direct current contactor contact structure | |
| CN217822460U (en) | High-efficient arc extinguishing magnetic latching relay | |
| CN218482157U (en) | Relay, control device and control circuit module | |
| CN216120118U (en) | Contact mechanism and high-voltage direct-current relay | |
| CN211479955U (en) | High-voltage direct-current contactor | |
| CN216389207U (en) | Reinforced contact signal relay | |
| CN219842931U (en) | Relay for increasing creepage distance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |