CN2724191Y - DC contactor - Google Patents
DC contactor Download PDFInfo
- Publication number
- CN2724191Y CN2724191Y CN 200420037061 CN200420037061U CN2724191Y CN 2724191 Y CN2724191 Y CN 2724191Y CN 200420037061 CN200420037061 CN 200420037061 CN 200420037061 U CN200420037061 U CN 200420037061U CN 2724191 Y CN2724191 Y CN 2724191Y
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- CN
- China
- Prior art keywords
- contact
- contactor
- moving contact
- moving
- housing
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- 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.)
- Expired - Lifetime
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a DC contactor, a DC contactor used for the switching on and switching off DC current. The utility model comprises a base, an electromagnet fixed on the base, a casing above the electromagnet, a contact on the casing and an arc-control device. The contact comprises a movable contact and a static contact which are mutually matched. The movable contact is arranged on a movable contact frame on the casing, and the movable contact frame is provided with a spring. The movable contact frame can move up and down on the casing. The electromagnet is a solenoid type electromagnetic coil, and the periphery of the electromagnet is provided with yoke iron. The yoke iron is provided with a suppressor which is connected with the solenoid type electromagnetic coil through lead wires. The movable contact frame is hinged with an armature below the movable contact frame. The lower end of the armature is inserted into the solenoid type electromagnetic coil and connected with the solenoid type electromagnetic up and down in a sliding mode. The DC contactor solves the problems that the existing contactor has slow switching speed, low shock resistance and multiple safe failures.
Description
Technical field
The utility model relates to a kind of contactor, relates in particular to a kind of D.C. contactor that is used to connect with the disjunction direct current.
Background technology
D.C. contactor in the market adopts the clapper-type structure more, mainly is made of electromagnetic system, contact, armature and arc-control device.Produce electromagnetic force during the electromagnetic system energising, make armature motion and contact is connected or disjunction, thereby connect or the disjunction direct current, electromagnetism decorum dead electricity, contact resets.Arc-control device adopts the solenoid that is installed in the contact top.Probe of contactor mostly is single-break, and Capacity Ratio is less, and when contactor was installed in the normal position, moving contact was in level with fixed contact and contacts.The shortcoming of above-mentioned D.C. contactor is: 1, clapper-type gravity flow contactor anti-seismic performance and breaking capacity are all poor; 2 when the contactor making current, is easy to generate surge voltage; 3, the probe of contactor capacity is little, occurs contact melted easily, and dust and tiny foreign material cause the vicious circle of scaling loss easily at contact surface and burn in the trace and retain; 4, arc-control device adopts solenoid, and Petersen coil line footpath is thinner because the main contact rated current is big, often occurs causing because of arc extinguishing circle scaling loss the fault of the voltage dead electricity of controlling when the contactor operate as normal.
Summary of the invention
Goal of the invention of the present utility model is to overcome the deficiencies in the prior art, and the D.C. contactor that a kind of breaking speed is fast, anti-seismic performance good, safety failure is few is provided.
The technical solution of the utility model is: a kind of D.C. contactor, comprise base, be fixed on the electromagnet on the base, the housing of electromagnet top and the contact on the housing and arc-control device constitute, contact comprises the moving contact and the fixed contact of mutual coupling, moving contact is located on the moving contact frame on the housing, moving contact frame is provided with spring, moving contact frame can move up and down at housing, described electromagnet is the helix tube type solenoid, its periphery is provided with yoke, yoke is provided with inhibitor, inhibitor is connected with the helix tube type solenoid by lead, and the armature of described moving contact frame and its below is hinged, and the armature lower end is inserted interior the sliding up and down with it of helix tube type solenoid and is connected.
Described arc-control device is a fence type permanent-magnet steel arc extinguishing, and is located at respectively on the housing of moving contact top.
The contact-making surface of described moving contact and fixed contact is the inclined-plane that mates mutually.
Described housing side is provided with supplementary module formula contact, and auxiliary contact is connected with moving contact frame by moving piece.
A kind of D.C. contactor by the technical solution of the utility model design has adopted solenoid electromagnet, has improved anti-seismic performance and breaking speed; The supression device has been installed, has been absorbed surge voltage; The contact contact-making surface is the inclined-plane, and automatic dust of energy and tiny foreign material have increased the contact capacity in connection and the breaking course, can not produce the phenomenon of contact melted; With fence type permanent-magnet steel arc-control device, reduced the fault that causes institute's control electrical equipment dead electricity because of the Petersen coil scaling loss.
Description of drawings
Fig. 1: structural representation of the present utility model;
Fig. 2: the cutaway view of the utility model embodiment.
Embodiment
In conjunction with the accompanying drawings 1 and embodiment the utility model is described further.
A kind of D.C. contactor as shown in Figure 1 and Figure 2, helix tube type electromagnetic wire 2 circles are fixed on the base 1, and helix tube type solenoid 2 both sides are provided with yoke 3, and inhibitor 11 is installed on the yoke 3, inhibitor 11 is connected with helix tube type solenoid 2 by lead 15, and inhibitor 11 can absorb surge voltage.Helix tube type solenoid 11 tops are provided with housing 7, and the contact on the housing 7 comprises auxiliary contact 9 and main contact, and auxiliary contact is universal HKW1 type sensitive switch, are installed in the front and back of housing 7; Main contact comprises the four groups of moving contacts 12 and the fixed contact 5 of mutual coupling, the contact-making surface of every group of moving contact 12 and fixed contact 5 all is the inclined-plane, stay on the contact-making surface if any dust or tiny foreign material, in the process of contactor connection and disjunction, can automatically it be removed, guarantee the reliability of contact contact.Auxiliary contact 9 is connected with moving contact frame 8 by moving piece 10, and moving piece 10 can move up and down with moving contact frame 8.Four moving contacts 12 are located on the moving contact frame 8 on the housing 7, and four the fence type permanent-magnet steel arc-control devices 6 corresponding with four moving contacts 12 are installed in respectively on the housing 7 of moving contact 12 tops.Moving contact frame 8 and on moving contact 12, spring 14 can move up and down at housing 7.Moving contact frame 8 is hinged with the armature 13 of its below, and armature 13 is cylindrical, and insert in the helix tube type solenoid 2 armature 13 lower ends, and armature 13 can move up and down in helix tube type solenoid 2.
Under normal conditions, contactor is in the disjunction state, and main contact and auxiliary contact 9 all disconnect.During energising, helix tube type solenoid 2 produces electromagnetic force and attracts armature 13 to move down, armature 13 moves down drive moving contact frame 8 and moves down, moving contact 12 and fixed contact 5 closures, what be connected with moving contact frame 8 moves piece 10 with auxiliary contact 9 closures, the all closed back of main contact and auxiliary contact 9 contactor is in on-state, and the surge voltage of generation is suppressed device 11 and absorbs.During dead electricity, armature 13 upwards resets under the effect of spring 14, and main contact and auxiliary contact 9 all disconnect, and the electric arc that produces when main contact disconnects is drawn by fence type permanent-magnet steel arc extinguishing 6 devices.
Claims (5)
1, a kind of D.C. contactor, comprise base, be fixed on the electromagnet on the base, the housing of electromagnet top and the contact on the housing and arc-control device constitute, contact comprises the moving contact and the fixed contact of mutual coupling, moving contact is located on the moving contact frame on the housing, moving contact frame is provided with spring, moving contact frame can move up and down at housing, it is characterized in that described electromagnet is the helix tube type solenoid, its periphery is provided with yoke, yoke is provided with inhibitor, inhibitor is connected with the helix tube type solenoid by lead, and the armature of described moving contact frame and its below is hinged, and the armature lower end is inserted interior the sliding up and down with it of helix tube type solenoid and is connected.
2, a kind of D.C. contactor according to claim 1 is characterized in that described arc-control device is a fence type permanent-magnet steel arc extinguishing, and is located at respectively on the housing of moving contact top.
3, a kind of D.C. contactor according to claim 1 and 2, the contact-making surface that it is characterized in that described moving contact and fixed contact are the inclined-planes that mates mutually.
4, a kind of D.C. contactor according to claim 1 and 2 is characterized in that described housing side is provided with supplementary module formula contact, and auxiliary contact is connected with moving contact frame by moving piece.
5, a kind of D.C. contactor according to claim 3 is characterized in that described housing side is provided with supplementary module formula contact, and auxiliary contact is connected with moving contact frame by moving piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037061 CN2724191Y (en) | 2004-07-01 | 2004-07-01 | DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037061 CN2724191Y (en) | 2004-07-01 | 2004-07-01 | DC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2724191Y true CN2724191Y (en) | 2005-09-07 |
Family
ID=35037813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420037061 Expired - Lifetime CN2724191Y (en) | 2004-07-01 | 2004-07-01 | DC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2724191Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252164A (en) * | 2016-08-31 | 2016-12-21 | 贵州天义电器有限责任公司 | A kind of track traffic high-voltage DC contactor |
| CN106409614A (en) * | 2016-11-09 | 2017-02-15 | 东莞市三友联众电器有限公司 | Improved relay |
-
2004
- 2004-07-01 CN CN 200420037061 patent/CN2724191Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252164A (en) * | 2016-08-31 | 2016-12-21 | 贵州天义电器有限责任公司 | A kind of track traffic high-voltage DC contactor |
| CN106409614A (en) * | 2016-11-09 | 2017-02-15 | 东莞市三友联众电器有限公司 | Improved relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140701 Granted publication date: 20050907 |