CN203787357U - DC (direct current) contactor - Google Patents
DC (direct current) contactor Download PDFInfo
- Publication number
- CN203787357U CN203787357U CN201420192944.9U CN201420192944U CN203787357U CN 203787357 U CN203787357 U CN 203787357U CN 201420192944 U CN201420192944 U CN 201420192944U CN 203787357 U CN203787357 U CN 203787357U
- Authority
- CN
- China
- Prior art keywords
- contact
- arc extinguishing
- contactor
- moving contact
- arc
- 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.)
- Expired - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims description 10
- 238000007664 blowing Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 230000008033 biological extinction Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model provides a DC (direct current) contactor which is a control element contactor of a circuit system. A magnetic field is built through a new structure, an arc blowing capability and an arc extinguishing capability are improved, and stable working performance of the contactor is thus ensured. The DC contactor is composed of an electromagnetic portion, a contact portion and an arc extinguishing portion. The electromagnetic portion includes a fixed iron core, a winding and a magnet yoke. The contact portion includes a fixed contact, a moving contact and a permanent magnet, wherein the fixed contact is mounted on an insulating substrate; the moving contact is disposed on a moving contact support, a lower part of the moving contact being connected with a moving iron core. The arc extinguishing portion is formed by two arc extinguishing chambers composed of an inner magnetic conducting plate, an outer magnetic conducting plate, a permanent magnet, an arc extinguishing cover and arc extinguishing grid sheets, wherein the two arc extinguishing chambers correspond to double-break-point structure formed by the moving contact and the fixed contact respectively. The DC contactor can be utilized to switch on or off DC high-voltage main loop of various new energy electric vehicles, start or stop a DC motor frequently, and switch on or off a remote-controlled DC circuit.
Description
Technical field
The utility model relates to the control element contactor of Circuits System, specifically a kind of D.C. contactor.
Background technology
D.C. contactor is the most important control element of all kinds of New-energy electric vehicle high direct voltage major loop, in order to in-vehicle power motor and other power consumption equipments are implemented to frequent make-break operation.Existing product adopts rotary type single-break contact mostly, arc-extinguish chamber is longitudinally arranged, arc blow-out is to be used in the mode that seals in blow-out coil in major loop simultaneously, this mode is because of the existence of " critical breaking current ", cause when electric current during lower than " critical breaking current " arc blow-out power too small and cannot blow out electric arc, therefore arc extinction performance is poor.In addition component placement is unreasonable, bulky and capacity is little.Existing product far can not the progress of adaptive technique and the development of production in sum.
Summary of the invention
The problem that the utility model exists for existing product, a kind of compact conformation is provided, rationally distributed, volume is little and capacity is large, arc extinction performance is good D.C. contactor, adapting to DC motor Fraquent start, stop and the characteristic of circuit for remotely controlling break-make, ensure the reliable and stable work of circuit.
The utility model adopts following technical scheme D.C. contactor to comprise electromagnet portion, contact portion and arc extinguishing part, described electromagnet portion comprises static iron core, winding and yoke, static iron core is fixed on base plate, described contact portion comprises fixed contact, moving contact, fixed contact is fixed on insulating base, there is a permanent magnet below, moving contact is loaded on moving contact and supports, in moving contact support, reaction spring is housed, its underpart connects moving iron core, described arc extinguishing part comprises outer magnetic conductive board, permanent magnet, interior magnetic conductive board, arc-extinguish chamber and arc extinguishing grid pieces, form the arc control device of two transverse arrangement of turbo.
The beneficial effects of the utility model are as follows: 1, two groups of contact corresponding matching form double-breakpoint structure, and respectively corresponding two arc control device, have improved arc extinguishing ability; 2, arc-extinguish chamber transverse arrangement of turbo, has reduced product height, has reduced volume, makes its topology layout more reasonable, is conducive to install and use; 3, fixed contact below is placed between permanent magnet and inside and outside magnetic conductive board and is placed permanent magnet, between dynamic/static contact He in arc control device, set up stationary magnetic field respectively, not only improve arc blow-out power, and avoid existing product to reduce to cause not enough " critical breaking current " problem occurring of arc blow-out power because of electric current, thereby ensured the work that circuit is normal and stable.
Brief description of the drawings
Fig. 1 is D.C. contactor profile reference diagram
Fig. 2 is A-A cutaway view in Fig. 1
Fig. 3 is B-B cutaway view in Fig. 1
Fig. 4 is arc extinguishing part-structure figure
Fig. 5 is contact portion structural representation
Drawing explanation
In Fig. 2: 1-base plate 2-yoke 3-winding 4-static iron core 5-moves iron core
6-insulating base 7-reaction spring 8-moving contact is supported 9-case
In Fig. 3: 10-permanent magnet 11-fixed contact 12-moving contact
In Fig. 4: magnetic conductive board 16-arc-extinguish chamber in the outer magnetic conductive board 14-permanent magnet 15-of 13-
17-arc extinguishing grid pieces
In Fig. 5: 10-permanent magnet 11-fixed contact 12-moving contact
Embodiment
Below in conjunction with brief description of the drawings embodiment of the present utility model, D.C. contactor comprises electromagnet portion, contact portion and arc extinguishing part, as shown in Figure 2, electromagnet portion comprises that static iron core 4, winding 3 and yoke 2 form, static iron core 4 is riveted together with base plate 1, outside winding 3 and the yoke 2 of installing of static iron core 4.Contact portion comprises fixed contact 11, moving contact 12 and permanent magnet 10, and as shown in Figure 3, Fig. 5 is contact portion structural representation.Permanent magnet 10 is placed in fixed contact 11 belows, fixed contact 11 is fixed on insulating base 6, insulating base 6 is connected with yoke 2 use screws, case 9 is housed on insulating base 6, moving contact 12 is arranged on moving contact and supports, on 8, reaction spring 7 to be also housed in moving contact support 8, and its below connects moving iron core 5, moving contact 12 and fixed contact 11 have two groups, and corresponding matching forms double-breakpoint structure.As shown in Figure 4, arc extinguishing part comprises outer magnetic conductive board 13, permanent magnet 14, interior magnetic conductive board 15, arc-extinguish chamber 16 and arc extinguishing grid pieces 17, permanent magnet 14 is placed between inside and outside magnetic conductive board, and affiliated part forms the arc control device of two transverse arrangement of turbo, and the double-breakpoint structure forming with dynamic/static contact is respectively corresponding.
Claims (4)
1. a D.C. contactor, comprise electromagnet portion, contact portion and arc extinguishing part, it is characterized in that described electromagnet portion comprises static iron core (4), winding (3) and yoke (2), static iron core (4) is fixed on base plate (1), described contact portion comprises fixed contact (11), moving contact (12), fixed contact (11) is fixed on insulating base (6), permanent magnet (10) is equipped with in its below, moving contact (12) is loaded in moving contact support (8), moving contact is supported, on (8), reaction spring (7) is housed, its underpart connects moving iron core (5), described arc extinguishing part comprises outer magnetic conductive board (13), permanent magnet (14), interior magnetic conductive board (15), arc extinguishing grid pieces (17) and arc-extinguish chamber (16), form the arc control device of two transverse arrangement of turbo.
2. D.C. contactor according to claim 1, is characterized in that moving contact (12) and fixed contact (11) have two groups, and corresponding matching forms double-breakpoint structure.
3. D.C. contactor according to claim 1, is characterized in that permanent magnet (14) is placed between inside and outside magnetic conductive board.
4. D.C. contactor according to claim 1 and 2, is characterized in that the arc control device of two transverse arrangement of turbo, and the double-breakpoint structure forming with dynamic/static contact is respectively corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192944.9U CN203787357U (en) | 2014-04-10 | 2014-04-10 | DC (direct current) contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192944.9U CN203787357U (en) | 2014-04-10 | 2014-04-10 | DC (direct current) contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787357U true CN203787357U (en) | 2014-08-20 |
Family
ID=51323514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420192944.9U Expired - Lifetime CN203787357U (en) | 2014-04-10 | 2014-04-10 | DC (direct current) contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109300742A (en) * | 2018-09-10 | 2019-02-01 | 上海良信电器股份有限公司 | A kind of arc quenching system of D.C. contactor |
| CN109935499A (en) * | 2019-04-26 | 2019-06-25 | 上海立新电器控制设备有限公司 | A kind of contact assembly and the towing vehicle DC. current electromagnetic contactor using it |
-
2014
- 2014-04-10 CN CN201420192944.9U patent/CN203787357U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109300742A (en) * | 2018-09-10 | 2019-02-01 | 上海良信电器股份有限公司 | A kind of arc quenching system of D.C. contactor |
| CN109935499A (en) * | 2019-04-26 | 2019-06-25 | 上海立新电器控制设备有限公司 | A kind of contact assembly and the towing vehicle DC. current electromagnetic contactor using it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |