CN203039254U - Integrated switch device - Google Patents
Integrated switch device Download PDFInfo
- Publication number
- CN203039254U CN203039254U CN 201220735980 CN201220735980U CN203039254U CN 203039254 U CN203039254 U CN 203039254U CN 201220735980 CN201220735980 CN 201220735980 CN 201220735980 U CN201220735980 U CN 201220735980U CN 203039254 U CN203039254 U CN 203039254U
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- CN
- China
- Prior art keywords
- contact
- contact apparatus
- integrated switch
- switching device
- trip gear
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- Expired - Lifetime
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Abstract
The utility model provides an integrated switch device which belongs to the technical field of low-voltage electrical appliances. The device comprises an integrated switch device body which is internally provided with at least a first contact device, a tripping device and a second contact device which are in series connection in order. The integrated switch device is characterized in that the first contact device is a rotary type double-breakpoint contact device, the second contact device is a bridge type double-breakpoint contact device, the separation and closing of a moving contact and a static contact of the first contact device is controlled by an operating mechanism, the separation and closing of a moving contact and a static contact of the second contact device is controlled by an electromagnet, and the operating mechanism is actuated by the tripping device. The integrated switch device has the advantages that the coordination of two sets of contact devices can be completed in the integrated switch device.
Description
Technical field
The utility model belongs to the low voltage electrical apparatus technology field, is specifically related to a kind of packet type switchgear with control and defencive function
Background technology
In the prior art; the control of being made up of discrete component and protection electrical system are general respectively by the device for switching that can realize protective effect (being mainly circuit breaker) and start to control the device for switching (being mainly contactor and thermal relay) of making usefulness and constitute; two kinds of electrical equipment independently install and fix respectively; and realize being electrically connected by connector, between power supply and load, control and protect.Wherein: circuit breaker is as the short-circuit protection of circuit, and contactor is as the frequent start-stop motor, and thermal relay is as the overload protection of motor.This control of being formed by discrete component and protection electrical system; need the on-the-spot apolegamy of installing, it is big to take up room, poor reliability; and require the professional and technical personnel can fully grasp the characteristic of each components and parts, just can design the control and protection electrical system that are complementary with characteristic.
For this reason, the applicant has carried out actively and effectively attempting, and technical scheme described below produces under this background
Summary of the invention
Task of the present utility model is to provide a kind of inside to finish the integrated switching device with high breaking capacity of the cooperation of control and protection.
Task of the present utility model is finished like this, a kind of integrated switching device, comprise integrated switching device body, at least be provided with one first contact apparatus in the described integrated switching device body, one trip gear and one second contact apparatus, connect successively between described first contact apparatus and the described trip gear and between described trip gear and described second contact apparatus, it is characterized in that: described first contact apparatus is the rotary double-break contact device with current-limiting function, described second contact apparatus is the double-break bridging contact device, first contact apparatus is controlled separation/closure between its sound contact by operating mechanism, second contact apparatus is by the separation/closure between its sound contact of magnet control, and trip gear activates described operating mechanism.
The utility model is because after adopting said structure, the beneficial effect that has: second contact apparatus that first contact apparatus by having a rotary double break contact of current-limiting function with, trip gear and have a double break point bridge contact is connected successively and is constituted integrated switching device, when having fault current to produce in the residing loop of the integrated switching device of this kind, trip gear drives the advanced action work of first contact apparatus and keeps the dynamic/static contact of first contact apparatus to open, thereby the disjunction fault current, second contact apparatus just begins action then; Because the current-limiting function of first contact apparatus, and carry out the characteristic of disjunction fault current prior to second contact apparatus in conjunction with it, the physical fault electric current that bears in the loop is far smaller than expection short-circuit current value, can not cause damage to second contact apparatus, thereby can finish the cooperation of two groups of contact apparatus in the inside of integrated switching device body.
Description of drawings
Fig. 1 is an embodiment schematic diagram of the present utility model.
Among the figure: 1. integrated switching device body; 2. first contact apparatus; 3. trip gear; 4. second contact apparatus; 5. operating mechanism; 6. electromagnet.
Embodiment
In order to make the public can fully understand technical spirit of the present utility model and beneficial effect; the applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but the applicant is not restriction to technical scheme to the description of embodiment, anyly makes form but not the variation of essence all should be considered as protection range of the present utility model according to the utility model design.
See also Fig. 1, a kind of integrated switching device of the utility model, comprise integrated switching device body 1, at least be provided with one first contact apparatus 2, a trip gear 3 and one second contact apparatus 4 in the described integrated switching device body 1, connect successively between described first contact apparatus 2 and the described trip gear 3 and between described trip gear 3 and described second contact apparatus 4.Described first contact apparatus 2 is preferably the rotary double-break contact device with current-limiting function, described second contact apparatus 4 is preferably the double-break bridging contact device, described first contact apparatus 2 is by the separation/closure between operating mechanism 5 its sound contacts of control, described second contact apparatus 4 is by the separation/closure between electromagnet 6 its sound contacts of control, and described trip gear 3 activates described operating mechanism 5.
When having short-circuit current to produce in this residing loop of integrated switching device, short circuit current flows through the dynamic/static contact of first contact apparatus 2, make between the dynamic/static contact of the contact apparatus 2 of winning and produce electrodynamic repulsion force, electrodynamic repulsion force makes the moving contact of the contact apparatus 2 of winning to the direction motion away from fixed contact, short circuit current flows through trip gear 3, trip gear 3 drives operating mechanism 5 and trips, before the moving contact of first contact apparatus 2 fell back to moving contact and fixed contact closure after the direction motion away from fixed contact, operating mechanism 5 drove the moving contact of first contact apparatus 2 to moving away from the direction of fixed contact and moving contact being remained on open position.Before the dynamic/static contact of first contact apparatus 2 remains on open position, short circuit current flows through second contact apparatus 4, produce electrodynamic repulsion force between the dynamic/static contact of second contact apparatus 4, the moving contact of second contact apparatus 4 under the effect of electrodynamic repulsion force to moving away from the fixed contact direction, but because electromagnet 6 does not move, the moving contact of second contact apparatus 4 can fall back to and the fixed contact closure, first contact apparatus 2 has carried out disjunction failed shorted electric current prior to second contact apparatus 4, because the current-limiting function of first contact apparatus 2, namely when the fault current in the loop also during the no show prospective short circuit current, open position has been opened and remained on to the dynamic/static contact of first contact apparatus 2, i.e. first contact apparatus, 2 disjunctions circuit, make the physical fault electric current that bears in the loop much smaller than prospective short circuit current.The rated current of first contact apparatus 2 of the present utility model is 125A, the rated current of second contact apparatus 4 is 125A, prospective short circuit current can be 150kA in the loop, current limliting coefficient according to first contact apparatus 2, the physical fault electric current that bears in the loop is about 20kA, be far smaller than expection short-circuit current value 150kA, can not cause damage to second contact apparatus 4.
The 2 advanced action of first contact apparatus are done and the disjunction fault current, and second contact apparatus 4 just begins action then.Because the current-limiting function of first contact apparatus 2, and carry out the characteristic of disjunction fault current prior to second contact apparatus 4 in conjunction with it, the physical fault electric current that bears in the loop is far smaller than expection short-circuit current value, can not cause damage to second contact apparatus 4, thereby finish the cooperation of two groups of contact apparatus in the inside of integrated switching device body 1.Under normal operating condition, first contact apparatus 2 and trip gear 3 do not participate in action, are responsible for the normal running current in the residing loop of the integrated switching device of break-make by second contact apparatus 4.
In sum, the technical scheme that the utility model provides has overcome the shortcoming in the prior art, has reached goal of the invention, has embodied the described technique effect of applicant
Claims (1)
1.
A kind of integrated switching device, comprise integrated switching device body (1), at least be provided with one first contact apparatus (2) in the described integrated switching device body (1), one trip gear (3) and one second contact apparatus (4), connect successively between described first contact apparatus (2) and the described trip gear (3) and between described trip gear (3) and described second contact apparatus (4), it is characterized in that: described first contact apparatus (2) is for having the rotary double-break contact device of current-limiting function, described second contact apparatus (4) is the double-break bridging contact device, first contact apparatus (2) is controlled separation/closure between its sound contact by operating mechanism (5), second contact apparatus (4) is controlled separation/closure between its sound contact by electromagnet (6), and trip gear (3) activates operating mechanism (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735980 CN203039254U (en) | 2012-12-28 | 2012-12-28 | Integrated switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735980 CN203039254U (en) | 2012-12-28 | 2012-12-28 | Integrated switch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203039254U true CN203039254U (en) | 2013-07-03 |
Family
ID=48691341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220735980 Expired - Lifetime CN203039254U (en) | 2012-12-28 | 2012-12-28 | Integrated switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203039254U (en) |
-
2012
- 2012-12-28 CN CN 201220735980 patent/CN203039254U/en not_active Expired - Lifetime
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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: 20130703 |
|
| CX01 | Expiry of patent term |