CN203277271U - Moving contact system for circuit breaker - Google Patents
Moving contact system for circuit breaker Download PDFInfo
- Publication number
- CN203277271U CN203277271U CN 201320105800 CN201320105800U CN203277271U CN 203277271 U CN203277271 U CN 203277271U CN 201320105800 CN201320105800 CN 201320105800 CN 201320105800 U CN201320105800 U CN 201320105800U CN 203277271 U CN203277271 U CN 203277271U
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- CN
- China
- Prior art keywords
- moving contact
- rotating shaft
- circuit breaker
- contact rotating
- movable contact
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Abstract
The utility model relates to a moving contact system for a circuit breaker. The moving contact system comprises a moving contact rotating shaft (1), wherein at least one moving contact assembly (2) is embedded and installed in the moving contact rotating shaft (1). The moving contact system is characterized in that a moving contact compression spring (3) is installed in a separation groove (101) of the moving contact rotating shaft (1), one end of the moving contact compression spring presses against the inner end face of a spring installation groove (201) of the moving contact assembly (2), the other end presses against the inner end face of the separation groove (101), and a moving contact rotating shaft cover (4) is clamped between two end plates (102) of the moving contact rotating shaft (1). The moving contact system provided by the utility model for the circuit breaker enables a moving contact to generate pressure during contact by using the separated compression spring, thereby solving the defect that heat generation is caused because the contact resistance of a traditional moving contact system is too large, and enabling the size of a contact system of a rotation type double breakpoint circuit breaker to be greatly reduced at the same time.
Description
Technical field
The utility model belongs to the low voltage electrical apparatus technology field, specifically just relates to a kind of moving contact of breaker system for high-current circuit.
Background technology
Circuit breaker is divided into primary cut-out and low-voltage circuit breaker by its scope of application.Low-voltage circuit breaker claims again automatic switch, is commonly called as " air switch " and also refers to low-voltage circuit breaker, and it is a kind of existing hand switch effect, can automatically carry out again decompression, under-voltage, overload and the electrical equipment of short-circuit protection.It can be used to distribute electric energy; do not start continually asynchronous motor; power circuit and motor etc. are carried out protection; can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur for their; its function is equivalent to the combination of Fuse switch and mistake underheat relay etc.; and generally do not need to change parts after the disjunction fault current, obtain a wide range of applications.
in existing market, general current strength is mainly the single-break system greater than the circuit breaker movable contact system of 630A, and the rotary type double-breakpoint circuit breaker is due to the restriction that is subjected to the contact system volume, generally can only use in the circuit breaker of little current specification, in the breaker circuit of current strength greater than 630A, in order to reduce the excessive situation of generating heat of causing of the contact resistance that causes due to dynamic/static contact contact, contact system needs the multiple contact silver point in parallel, as shown in Figure 1, its structure is to use draw spring from contact both sides pulling moving contact and make moving contact produce pressure when contacting with fixed contact, when but this multiple contact is in parallel, spring and moving contact are that install at the interval, can cause again the movable contact system volume greatly can't effectively install, reduce the serviceability of circuit breaker.
The utility model content
Technical barrier to be solved of the present utility model is for existing breaker circuit greater than 630A, the excessive easy heating of moving contact or contact resistance, the defective that the excessive inconvenience of movable contact system volume is installed, a kind of movable contact system for circuit breaker is provided, use the Compress Spring that separates to make dynamic/static contact produce pressure when contact, solve the excessive defective of generating heat of causing of the contact resistance of traditional movable contact system, the contact system volume of rotary type double-breakpoint circuit breaker is reduced greatly.
Technical scheme
In order to solve above-mentioned technical barrier, a kind of movable contact system for circuit breaker of the utility model design, it comprises the moving contact rotating shaft, at least one moving contact component inlay card is contained in the moving contact rotating shaft, it is characterized in that: the moving contact stage clip is contained in the separate slot of moving contact rotating shaft, one end props up the spring fitting groove inner face of moving contact component, and the other end props up the inner face of separate slot, and moving contact rotating shaft cover is installed between the two end plates of moving contact rotating shaft.
Described moving contact rotating shaft comprises at least one compartment, and compartment is comprised of isolation bar side by side, has at least two mechanism driving holes on the two end plates at moving contact rotating shaft two ends;
Described moving contact component comprises the movable contact plate, the moving contact silver point is equipped with at movable contact plate two ends, and the movable contact integrated circuit board is embedded in the interior compartment of moving contact rotating shaft, has the spring fitting groove on the movable contact plate, moving contact stage clip one end props up the spring fitting groove inner face of moving contact component, and the other end props up the inner face of separate slot;
Have at least between a partition on described moving contact rotating shaft cover, form by cutting off gusset between partition, gluten-blocking plate is equipped with at moving contact rotating shaft cover two ends, has location hole on gluten-blocking plate, cuts off gusset and is provided with limited step.
The two end plates of described moving contact rotating shaft is provided with moving contact rotating shaft cover location hole, moving contact rotating shaft cover location hole and location hole center superposition, and two holes connect by pin.
The two end plates of described moving contact rotating shaft is provided with locking groove.
Described movable contact plate center is provided with center positioning hole.
Beneficial effect
The movable contact system that is used for circuit breaker that the utility model provides uses the Compress Spring that separates to make dynamic/static contact produce pressure when contact, solve the excessive defective of generating heat of causing of the contact resistance of traditional movable contact system, the contact system volume of rotary type double-breakpoint circuit breaker is reduced greatly.
Description of drawings
Accompanying drawing 1 is existing movable contact system.
Accompanying drawing 2 is the utility model product figure.
Accompanying drawing 3 is the utility model structural representations.
Accompanying drawing 4 is moving contact component mounting structure schematic diagrames in the utility model.
Accompanying drawing 5 is that the utility model is removed moving contact hood mounting structure schematic diagram.
Accompanying drawing 6 is moving contact rotating shaft left views in the utility model.
Accompanying drawing 7 is moving contact rotating shaft vertical views in the utility model.
Accompanying drawing 8 is movable contact head-shield vertical views in the utility model.
Accompanying drawing 9 be in accompanying drawing 8 U to view.
Accompanying drawing 10 is moving contact component stereograms in the utility model.
Accompanying drawing 11 is moving contact component front views in the utility model.
Accompanying drawing 12 is movable contact head-shield stereograms in the utility model.
Accompanying drawing 13 is the utility model work schematic diagrames.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment
As shown in accompanying drawing 2-12, a kind of movable contact system for circuit breaker, it comprises moving contact rotating shaft 1, at least one moving contact component 2 inlay card is contained in moving contact rotating shaft 1, it is characterized in that: moving contact stage clip 3 is contained in the separate slot 101 of moving contact rotating shaft 1, one end props up spring fitting groove 201 inner faces of moving contact component 2, and the other end props up the inner face of separate slot 101, and moving contact rotating shaft cover 4 is installed on 102 of the two end plates of moving contact rotating shaft 1.
Described moving contact rotating shaft 1 comprises at least one compartment 103, and compartment 103 is comprised of isolation bar 104 side by side, has at least two mechanism driving holes 105 on the two end plates 102 at moving contact rotating shaft 1 two ends;
Described moving contact component 2 comprises movable contact plate 202, moving contact silver point 203 is equipped with at movable contact plate 202 two ends, in the compartment 103 of movable contact plate 202 inlay cards in moving contact rotating shaft 1, have spring fitting groove 201 on movable contact plate 202, moving contact stage clip 3 one ends prop up spring fitting groove 201 inner faces of moving contact component 2, and the other end props up the inner face of separate slot 101;
Have between a partition 401 on described moving contact rotating shaft cover 4 at least, between partition, 401 form by cutting off gusset 402, and gluten-blocking plate 403 is equipped with at moving contact rotating shaft cover 4 two ends, has location hole 404 on gluten-blocking plate 403, cuts off gusset 402 and is provided with limited step 405.
The two end plates 102 of described moving contact rotating shaft 1 is provided with moving contact rotating shaft cover location hole 107, moving contact rotating shaft cover location hole 107 and location hole 404 center superpositions, and two holes connect by pin 108.
The two end plates 102 of described moving contact rotating shaft 1 is provided with locking groove 109.
Described movable contact plate 202 centers are provided with center positioning hole 205.
The course of work of the present utility model is: as shown in Figure 13, mechanism drives moving contact rotating shaft 1, movable contact system direction indication outside diagram is turned clockwise, when moving contact component 2 contacts with the fixed contact of fixing, mechanism drives rotating shaft and continues to rotate to clockwise direction, and fixed contact is because fixed contact resistance shelves are motionless, and moving contact stage clip 3 is in the motion lower compression of rotating shaft, produce pressure between moving contact component 2 and fixed contact, make moving contact component and fixed contact form a current circuit.
The movable contact system that is used for circuit breaker that the utility model provides uses the Compress Spring that separates to make dynamic/static contact produce pressure when contact, solve the excessive defective of generating heat of causing of the contact resistance of traditional movable contact system, the contact system volume of rotary type double-breakpoint circuit breaker is reduced greatly.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Therefore, have in technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of completing under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (4)
1. movable contact system that is used for circuit breaker, it comprises moving contact rotating shaft (1), at least one moving contact component (2) inlay card is contained in moving contact rotating shaft (1), it is characterized in that: moving contact stage clip (3) is contained in the separate slot (101) of moving contact rotating shaft (1), one end props up spring fitting groove (201) inner face of moving contact component (2), the other end props up the inner face of separate slot (101), and moving contact rotating shaft cover (4) is installed between the two end plates (102) of moving contact rotating shaft (1);
Described moving contact rotating shaft (1) comprises at least one compartment (103), compartment (103) is comprised of isolation bar (104) side by side, has at least two mechanism driving holes (105) on the two end plates (102) at moving contact rotating shaft (1) two ends;
Described moving contact component (2) comprises movable contact plate (202), moving contact silver point (203) is equipped with at movable contact plate (202) two ends, in the compartment (103) of movable contact plate (202) inlay card in moving contact rotating shaft (1), have spring fitting groove (201) on movable contact plate (202), moving contact stage clip (3) one ends prop up spring fitting groove (201) inner face of moving contact component (2), and the other end props up the inner face of separate slot (101);
Have at least between a partition (401) on described moving contact rotating shaft cover (4), between partition, (401) form by cutting off gusset (402), gluten-blocking plate (403) is equipped with at moving contact rotating shaft cover (4) two ends, have location hole (404) on gluten-blocking plate (403), cut off gusset (402) and be provided with limited step (405).
2. a kind of movable contact system for circuit breaker as claimed in claim 1, it is characterized in that: the two end plates (102) of described moving contact rotating shaft (1) is provided with moving contact rotating shaft cover location hole (107), moving contact rotating shaft cover location hole (107) and location hole (404) center superposition, two holes connect by pin (108).
3. a kind of movable contact system for circuit breaker as claimed in claim 1, it is characterized in that: the two end plates (102) of described moving contact rotating shaft (1) is provided with locking groove (109).
4. a kind of movable contact system for circuit breaker as claimed in claim 1 is characterized in that: described movable contact plate (202) center is provided with center positioning hole (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320105800 CN203277271U (en) | 2013-03-07 | 2013-03-07 | Moving contact system for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320105800 CN203277271U (en) | 2013-03-07 | 2013-03-07 | Moving contact system for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203277271U true CN203277271U (en) | 2013-11-06 |
Family
ID=49507627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320105800 Expired - Fee Related CN203277271U (en) | 2013-03-07 | 2013-03-07 | Moving contact system for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203277271U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023818A (en) * | 2015-08-11 | 2015-11-04 | 浙江奔一电气有限公司 | Double-break circuit breaker |
| CN105336516A (en) * | 2015-12-10 | 2016-02-17 | 二一三电器(上海)有限公司 | Diverter switch device |
| CN105355483A (en) * | 2015-12-10 | 2016-02-24 | 二一三电器(上海)有限公司 | Interphase insulation device for double-breakpoint change-over switch |
-
2013
- 2013-03-07 CN CN 201320105800 patent/CN203277271U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023818A (en) * | 2015-08-11 | 2015-11-04 | 浙江奔一电气有限公司 | Double-break circuit breaker |
| CN105336516A (en) * | 2015-12-10 | 2016-02-17 | 二一三电器(上海)有限公司 | Diverter switch device |
| CN105355483A (en) * | 2015-12-10 | 2016-02-24 | 二一三电器(上海)有限公司 | Interphase insulation device for double-breakpoint change-over switch |
| CN105355483B (en) * | 2015-12-10 | 2018-01-26 | 二一三电器(上海)有限公司 | The phase insulation device of double breaking points change-over switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 |