CN202332750U - Control and protection switch - Google Patents
Control and protection switch Download PDFInfo
- Publication number
- CN202332750U CN202332750U CN2011204679992U CN201120467999U CN202332750U CN 202332750 U CN202332750 U CN 202332750U CN 2011204679992 U CN2011204679992 U CN 2011204679992U CN 201120467999 U CN201120467999 U CN 201120467999U CN 202332750 U CN202332750 U CN 202332750U
- Authority
- CN
- China
- Prior art keywords
- control
- protection switch
- permanent magnet
- base
- pedestal
- 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
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Abstract
The utility model discloses a control and protection switch comprising a lower shell, a base, an upper shell, an auxiliary mechanism and a circuit board shell. The auxiliary mechanism and the circuit board shell are arranged on the two sides of the base, and the upper shell and the lower shell are respectively arranged above and below the base; a permanent magnet mechanism is fixed in the lower shell, and a pull rod is arranged on the permanent magnet mechanism; a cross beam is arranged on the base, a movable contact is installed at the upper end of the cross beam, a fixed contact adaptive to the movable contact is arranged below the movable contact and is connected with a connecting bar, and the push rod is connected with the cross beam; and the connecting bar penetrates through a mutual inductor to be fixed on the base. In the utility model, the control and protection switch is improved based on an existing product, the permanent magnet mechanism is arranged on the lower shell, the principle that the permanent magnet is used for driving control is utilized to control the on and off of a main contactor so as to realize the switching on and switching off of the switch; and in addition, the movable contact of the main contactor adopts a bridge type double-breakpoint structure, so that the current bearing capacity is strong, the switching on and switching off speed is quick, the critical bounce does not exist, and the service lives of the contacts can be prolonged. The control and protection switch has good practicability and can generate good economical benefits and social effects.
Description
Technical field
The utility model belongs to the low voltage electrical apparatus technology field, is specifically related to a kind of control and protection switch.
Background technology
Control is control and protection to all kinds of motor loads, distribution load with the major function of protection switch electrical equipment, and existing a kind of control mainly comprises base plate, pedestal with its structure of protection switch electrical equipment; Main contactor in protecgulum and the loam cake, pedestal, the electromagnetic spool device on the pedestal, release, transmission mechanism and control circuit; Electromagnetic spool device gets electric back, and it is directly moved by Attraction strap swing arm bearing with the moving magnet that the axle of arm bearing is connected; The contact bridge that the arm bearing drives main contactor is again connected main contactor, and the control of this structure and protection switch electrical equipment are that the reaction force that relies on electromagnetic force to overcome spring keeps the long-term closure of major loop, so when working long hours; Pull-in winding must be long charged; Coil must accumulate certain heat through operation after a while, causes temperature to raise, and stipulates that usually the coil working temperature must not be above 65 ℃; In case some external factor causes the coil heat radiation bad, then can produce the phenomenon of coil burnout.Again because the control of existing this kind structure and its main contactor maximum rated current of protection switch electrical equipment generally below 150A, can't satisfy market to the control of big rated current and the demand of protection switch electrical equipment.
Summary of the invention
Goal of the invention: to the deficiency that exists in the prior art, the purpose of the utility model provides a kind of control and protection switch, with through the improvement to switch and contactor construction, realizes that rated current reaches 630A, has satisfied the market demand.
Technical scheme: in order to realize the foregoing invention purpose, the technical scheme that the utility model adopts is:
A kind of control and protection switch comprise lower house, pedestal, upper shell, auxiliary body and wiring board housing, and described auxiliary body and wiring board housing are arranged on the pedestal both sides, upper shell and lower house be located at respectively pedestal about; At the lower house internal fixation permanent magnet mechanism is arranged, on permanent magnet mechanism, be provided with pull bar; On pedestal, be provided with crossbeam, in crossbeam upper end moving contact be housed, below moving contact, be provided with the fixed contact suitable with moving contact, fixed contact joins with being connected to arrange, and pull bar links to each other with crossbeam; Connection row is run through instrument transformer and is fixed on the pedestal.
The iron core of permanent magnet mechanism is provided with release mechanism by force.Auxiliary body pegs graft through the square hole on skeleton and the crossbeam.The wiring board housing is provided with switching knob.In upper shell, be provided with arc-chute with two ends, the corresponding position of moving contact.
Beneficial effect: compare with protection switch with existing control; Control of the utility model the utility model and protection switch are a kind of improvement to existing product; Permanent magnet mechanism is set, thereby the break-make of utilization permanent magnetism drive controlling principle control main contactor realizes the divide-shut brake of switch on lower house; In addition, the utility model main contactor moving contact adopts the bridge-type double-breakpoint structure, and current load power is strong, divides sum velocity fast, does not have critical spring, can effectively improve the life-span of contact; Have good practicability, can produce good economic benefits and social effect.
Description of drawings
Fig. 1 is the structural representation of control and protection switch.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in Figure 1, control and protection switch comprise lower house 15, pedestal 11, upper shell 7, auxiliary body 5 and wiring board housing 13; Auxiliary body 5 is arranged on pedestal 11 both sides with wiring board housing 13; Auxiliary body 5 pegs graft through the square hole on skeleton and the crossbeam 9, and wiring board housing 13 is provided with switching knob 12, at lower house 15 internal fixation permanent magnet mechanism 1 is arranged; Permanent magnet mechanism 1 iron core is provided with release mechanism 14 by force; Pull bar 2 in the permanent magnet mechanism 1 links to each other with crossbeam 9 on the pedestal 11, and moving contact 6 is equipped with in crossbeam 9 upper ends, on pedestal 11, is provided with contact bearing 8; Be provided with the fixed contact 10 suitable under the moving contact 6 with moving contact 6; What join with fixed contact 10 is to be connected row 3, and wherein the connection of pedestal 11 1 ends row 3 is run through instrument transformer 4 and is fixed on the pedestal 11, is provided with arc-chute with two ends, corresponding position, moving contact 6 tops in the upper shell 7.
When switch closed a floodgate, the pull bar 2 in the permanent magnet mechanism 1 dragged crossbeam 9 and moves downward, and was arranged on moving contact 6 on the crossbeam 9 and moved downward with crossbeam 9 and join with fixed contact 10; The major loop conducting; Meanwhile, auxiliary body's 5 skeletons of pegging graft with crossbeam 9 also move downward with crossbeam 9, otherwise are separating brake; Under special circumstances, strong breaking mechanism 14 is through the manual operation separating brake of control switch by force.
Claims (5)
1. control and protection switch for one kind; Comprise lower house (15), pedestal (11), upper shell (7), auxiliary body (5) and wiring board housing (13); Described auxiliary body (5) and wiring board housing (13) are arranged on pedestal (11) both sides, upper shell (7) and lower house (15) be located at respectively pedestal (11) about; It is characterized in that: at lower house (15) internal fixation permanent magnet mechanism (1) is arranged, on permanent magnet mechanism (1), be provided with pull bar (2); On pedestal (11), be provided with crossbeam (9); In crossbeam (9) upper end moving contact (6) is housed; Be provided with and the suitable fixed contact (10) of moving contact (6) in moving contact (6) below, fixed contact (10) be connected row (3) and join, pull bar (2) links to each other with crossbeam (9); Connection row (3) is run through instrument transformer (4) and is fixed on the pedestal (11).
2. control according to claim 1 and protection switch is characterized in that: the iron core of permanent magnet mechanism (1) is provided with release mechanism (14) by force.
3. control according to claim 1 and protection switch is characterized in that: auxiliary body (5) pegs graft through the square hole on skeleton and the crossbeam (9).
4. control according to claim 1 and protection switch is characterized in that: wiring board housing (13) is provided with switching knob.
5. control according to claim 1 and protection switch is characterized in that: in upper shell (7), be provided with arc-chute with the corresponding two ends, position of moving contact (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204679992U CN202332750U (en) | 2011-11-23 | 2011-11-23 | Control and protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204679992U CN202332750U (en) | 2011-11-23 | 2011-11-23 | Control and protection switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202332750U true CN202332750U (en) | 2012-07-11 |
Family
ID=46444722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204679992U Expired - Lifetime CN202332750U (en) | 2011-11-23 | 2011-11-23 | Control and protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202332750U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407285A (en) * | 2014-11-19 | 2015-03-11 | 江苏凯隆电器有限公司 | Life testing device for mechanism of control and protection switching appliance |
| CN106409621A (en) * | 2016-12-02 | 2017-02-15 | 雷顿电气科技有限公司 | Auxiliary module of control and protection switch |
| CN106409628A (en) * | 2016-08-31 | 2017-02-15 | 扬州新菱电器有限公司 | Firefighting type control and protection switch device with debugging function |
| CN106409620A (en) * | 2016-12-02 | 2017-02-15 | 雷顿电气科技有限公司 | Control and protection switch electric appliance |
-
2011
- 2011-11-23 CN CN2011204679992U patent/CN202332750U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407285A (en) * | 2014-11-19 | 2015-03-11 | 江苏凯隆电器有限公司 | Life testing device for mechanism of control and protection switching appliance |
| CN104407285B (en) * | 2014-11-19 | 2017-04-19 | 江苏凯隆电器有限公司 | Life testing device for mechanism of control and protection switching appliance |
| CN106409628A (en) * | 2016-08-31 | 2017-02-15 | 扬州新菱电器有限公司 | Firefighting type control and protection switch device with debugging function |
| CN106409621A (en) * | 2016-12-02 | 2017-02-15 | 雷顿电气科技有限公司 | Auxiliary module of control and protection switch |
| CN106409620A (en) * | 2016-12-02 | 2017-02-15 | 雷顿电气科技有限公司 | Control and protection switch electric appliance |
| CN106409621B (en) * | 2016-12-02 | 2019-02-05 | 雷顿电气科技有限公司 | The supplementary module of control and protective switching device |
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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 |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |