CN113871267A - Static contact support of circuit breaker - Google Patents
Static contact support of circuit breaker Download PDFInfo
- Publication number
- CN113871267A CN113871267A CN202111297438.7A CN202111297438A CN113871267A CN 113871267 A CN113871267 A CN 113871267A CN 202111297438 A CN202111297438 A CN 202111297438A CN 113871267 A CN113871267 A CN 113871267A
- Authority
- CN
- China
- Prior art keywords
- static contact
- base
- pipe
- water
- connecting pipe
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
Abstract
The invention relates to the technical field of electricity, in particular to a static contact support of a circuit breaker, which comprises a base, a static contact, a partition plate, a connecting pipe, a water inlet pipe and a water outlet pipe, when the circuit breaker is used, the base transmits heat to the static contact from bottom to top, so that the partition plate receives a large amount of heat, cold water is injected into the water inlet pipe at the moment, because the water inlet pipe, the connecting pipe and the water outlet pipe are smooth, the cold water in the water inlet pipe can enter the connecting pipe to circulate from top to bottom, thereby leading the cold water to absorb the heat received by the clapboard in the circulating process and then discharging the water with the temperature rising after absorbing the heat through the water outlet pipe, thereby realizing the heat dissipation of the clapboard, further reducing the heat productivity transmitted by the base to the static contact, due to the fact that the heating value received by the static contact is reduced, the situation that the service life of the static contact is shortened due to the fact that the static contact deforms under the action of high temperature is avoided.
Description
Technical Field
The invention relates to the technical field of electricity, in particular to a static contact support of a circuit breaker.
Background
At present, in a circuit breaker, current under the normal working condition of a circuit is switched on, carried and disconnected mainly by the contact and the separation of a moving contact and a fixed contact.
The static contact is arranged on the static contact support, when the moving contact is separated from the static contact, the static contact support bears current, and meanwhile, electric arcs generated between the moving contact and the static contact can be guided to an arc extinguishing system arranged in the circuit breaker.
However, the conventional static contact support has high resistivity and high heat productivity when bearing high-power current, so that the generated heat is transmitted to the static contact to easily cause deformation of the static contact, and the service life of the static contact is further shortened.
Disclosure of Invention
The invention aims to provide a static contact support of a circuit breaker, which can perform water-cooling heat dissipation on a static contact in the process of transmitting heat to the static contact by the static contact support.
In order to achieve the purpose, the invention provides a fixed contact support of a circuit breaker, which comprises a base, a fixed contact, a damping component and a heat dissipation component, wherein the base is provided with a plurality of fixed contacts; the fixed contact is connected with the base through the shock absorption component, and the shock absorption component is positioned between the base and the fixed contact; the radiating component comprises a partition plate, a connecting pipe, an inlet pipe, an outlet pipe and a transmission component, wherein the partition plate is fixedly installed on the upper surface of the base, the connecting pipe is sleeved on the outer side of the partition plate, the inlet pipe is communicated with the connecting pipe and is located at one side of the partition plate, the outlet pipe is communicated with the connecting pipe and is located at one side of the inlet pipe, and the transmission component is located the base is close to one side of the partition plate.
The transmission component comprises a water pump and a transmission pipe, and the water pump is communicated with the water inlet pipe and is fixedly arranged on the upper surface of the base; the transmission pipe is communicated with the water pump and is positioned on one side of the water pump, which is far away from the water inlet pipe.
The transmission component also comprises a water storage tank, and the water storage tank is communicated with the transmission pipe and the water outlet pipe and is fixedly arranged on the upper surface of the base.
The damping assembly comprises a fixed block and a movable block, and the fixed block is fixedly arranged on the upper surface of the base; the movable block is fixedly arranged on the lower surface of the static contact.
The damping assembly further comprises a sliding rail and a sliding block, and the sliding rail is fixedly mounted on the inner side of the fixed block; the sliding block is connected with the sliding rail in a sliding mode, fixedly connected with the movable block and located between the sliding rail and the movable block.
The damping assembly further comprises a spring, two sides of the spring are fixedly connected with the sliding block and the fixed block respectively, and the spring is located on the inner side of the sliding rail.
The static contact bracket of the circuit breaker of the invention transmits the generated heat to the static contact from bottom to top by the base when the circuit breaker is in use, so that the partition receives a large amount of heat, and at the same time, cold water is injected into the water inlet pipe, because the water inlet pipe, the connecting pipe and the water outlet pipe are unblocked, cold water in the water inlet pipe can be transmitted into the connecting pipe to circulate from top to bottom, so that the cold water can absorb the heat received by the clapboard in the circulating process, and then the water with the temperature increased after the heat is absorbed is discharged through the water outlet pipe, thereby realizing the heat dissipation of the clapboard, further reducing the heat productivity transmitted by the base to the static contact, due to the fact that the heating value received by the static contact is reduced, the situation that the service life of the static contact is shortened due to the fact that the static contact deforms under the action of high temperature is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the water storage tank installed on the base.
Fig. 2 is a schematic view of the connection between the connection pipe and the water inlet pipe provided by the present invention.
Fig. 3 is a schematic view of the connection between the spring and the slider provided by the present invention.
In the figure: the device comprises a base 1, a fixed contact 2, a shock absorption component 3, a heat dissipation component 4, a fixed block 31, a movable block 32, a sliding rail 33, a sliding block 34, a spring 35, a supporting plate 36, a sponge pad 37, a partition plate 41, a connecting pipe 42, a water inlet pipe 43, a water outlet pipe 44, a transmission component 45, a fixed contact support 100 of a circuit breaker, a water pump 451, a transmission pipe 452 and a water storage tank 453.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 3, the present invention provides a static contact holder 100 for a circuit breaker, including a base 1, a static contact 2, a damping component 3 and a heat dissipation component 4; the fixed contact 2 is connected with the base 1 through the damping component 3, and the damping component 3 is located between the base 1 and the fixed contact 2; radiator unit 4 includes baffle 41, connecting pipe 42, inlet tube 43, outlet pipe 44 and transmission component 45, baffle 41 fixed mounting be in the upper surface of base 1, the connecting pipe 42 cover is established the outside of baffle 41, inlet tube 43 with connecting pipe 42 intercommunication, and be located connecting pipe 42 keeps away from one side of baffle 41, outlet pipe 44 with connecting pipe 42 intercommunication, and be located connecting pipe 42 keeps away from one side of inlet tube 43, transmission component 45 is located base 1 is close to one side of baffle 41.
In this embodiment, the fixed contact 2 is located above the base 1, the fixed contact 2 is connected to the base 1 through the shock absorbing assembly 3, the partition plate 41 is located between the base 1 and the fixed contact 2, the partition plate 41 is of a hollow structure, the partition plate 41 is made of a metal material, so that the partition plate 41 has a good heat conducting property, the connecting pipe 42 is wound on the outer side of the partition plate 41 in an S-shape, the connecting pipe 42 is of a hollow structure, the water inlet pipe 43 is communicated with the connecting pipe 42, the water outlet pipe 44 is communicated with the connecting pipe 42, so that a channel is formed among the water inlet pipe 43, the connecting pipe 42, and the water outlet pipe 44, and thus, in the using process of the circuit breaker, the base 1 transmits the generated heat to the fixed contact 2 from bottom to top, therefore, the partition plate 41 receives a large amount of heat, cold water is injected into the water inlet pipe 43 at the moment, the water inlet pipe 43, the connecting pipe 42 and the water outlet pipe 44 are unblocked, so that the cold water in the water inlet pipe 43 can be transmitted into the connecting pipe 42 to circulate from top to bottom, the cold water can absorb the heat received by the partition plate 41 in the circulating process, and then the water with the temperature increased after the heat is absorbed is discharged through the water outlet pipe 44, so that the heat dissipation of the partition plate 41 is realized, the heat productivity transmitted by the base 1 to the static contact 2 is reduced, and the condition that the service life of the static contact 2 is shortened due to the reduction of the heat productivity received by the static contact 2 caused by the deformation of the static contact 2 at high temperature is avoided.
Further, referring to fig. 1 to 3, the transmission member 45 includes a water pump 451 and a transmission pipe 452, wherein the water pump 451 is communicated with the water inlet pipe 43 and is fixedly installed on the upper surface of the base 1; the delivery pipe 452 is in communication with the water pump 451 and is located on a side of the water pump 451 remote from the water inlet pipe 43.
Further, referring to fig. 1 and 2, the transmission member 45 further includes a water storage tank 453, and the water storage tank 453 is communicated with the transmission pipe 452 and the water outlet pipe 44 and is fixedly installed on the upper surface of the base 1.
In this embodiment, the water pump 451 is fixedly installed on the base 1, the water storage tank 453 is fixedly installed on the base 1, the water pump 451 is communicated with the water inlet pipe 43, the transmission pipe 452 is communicated with the water pump 451, the water storage tank 453 is communicated with the transmission pipe 452 and the water outlet pipe 44, so that a channel is formed among the water inlet pipe 43, the water pump 451, the transmission pipe 452, the water storage tank 453 and the water outlet pipe 44, water in the water storage tank 453 is transmitted to the water pump 451 through the transmission pipe 452 by power output from the output end of the water pump 451, so that the water in the water pump 451 can enter the connection pipe 42 from the water inlet pipe 43 to absorb heat received by the partition plate 41, and then the water with the heat absorbed enters the water storage tank 453 from the water outlet pipe 44 to be cooled, so that the water in the process of water-cooling the partition plate 41 flows out of the water storage tank 453 and finally flows back into the water storage tank 453, thereby realizing the recycling of the water in the water-cooling process.
Further, referring to fig. 1 to 3, the damping assembly 3 includes a fixed block 31 and a movable block 32, wherein the fixed block 31 is fixedly mounted on the upper surface of the base 1; the movable block 32 is fixedly mounted on the lower surface of the static contact 2.
Further, referring to fig. 1 to 3, the damping assembly 3 further includes a sliding rail 33 and a sliding block 34, wherein the sliding rail 33 is fixedly installed at the inner side of the fixing block 31; the sliding block 34 is slidably connected to the sliding rail 33, fixedly connected to the movable block 32, and located between the sliding rail 33 and the movable block 32.
Further, referring to fig. 3, the damping assembly 3 further includes a spring 35, two sides of the spring 35 are respectively and fixedly connected to the sliding block 34 and the fixed block 31, and the spring 35 is located on the inner side of the sliding rail 33.
Further, referring to fig. 3, the damping assembly 3 further includes a supporting plate 36, and the supporting plate 36 is fixedly mounted on a lower surface of the movable block 32.
Further, referring to fig. 3, the damping assembly 3 further includes a sponge pad 37, and the sponge pad 37 is fixedly installed on the inner side of the fixing block 31.
In this embodiment, the fixed block 31 is fixedly installed on the base 1, the inside of the fixed block 31 is a hollow structure, the movable block 32 is fixedly installed below the fixed contact 2 and located in the fixed block 31, the slide rail 33 is fixedly installed in the fixed block 31, the slide rail 33 has a slide groove, the slide block 34 is matched with the slide groove of the slide rail 33, so that the slide block 34 vertically slides in the slide rail 33, the slide block 34 is fixedly connected with the movable block 32, so that the slide block 34 can be driven to vertically slide in the slide rail 33 by the up-and-down movement of the movable block 32, one side of the spring 35 is fixedly connected with the bottom of the fixed block 31, the other side of the spring 35 is fixedly connected with the lower surface of the slide block 34, so that the spring 35 can buffer the vertical sliding of the slide block 34, when the static contact 2 is subjected to a collision force to generate an impact force towards the base 1, the movable block 32 moves up and down, so that the sliding block 34 vertically slides in the sliding rail 33 along with the movable block 32, and further the spring 35 expands and contracts, due to the self-recovery effect of the spring 35, the spring 35 automatically recovers to the original position after the impact force disappears, and further the spring 35 can absorb and buffer the collision force applied to the static contact 2, the support plate 36 is fixedly mounted on the lower surface of the movable block 32, the foam-rubber cushion 37 is fixedly mounted at the bottom of the fixed block 31, the foam-rubber cushion 37 is positioned under the support plate 36, and when the movable block 32 moves up and down, the support plate 36 moves up and down along with the movable block 32, therefore, the supporting plate 36 can be in contact with the foam rubber cushion 37 in the downward moving process, and due to the self-recovery effect of the foam rubber cushion 37, the foam rubber cushion 37 can absorb and buffer the shock of the movable block 32 in the downward moving process of the movable block 32, so that the foam rubber cushion 37 can further absorb and buffer the impact force on the static contact 2.
In the static contact bracket 100 of the circuit breaker, in the using process of the circuit breaker, the base 1 transmits the generated heat to the static contact 2 from bottom to top, so that the partition plate 41 receives a large amount of heat, at the moment, cold water is injected into the water inlet pipe 43, and because the water inlet pipe 43, the connecting pipe 42 and the water outlet pipe 44 are unblocked, the cold water in the water inlet pipe 43 can be transmitted into the connecting pipe 42 to circulate from top to bottom, so that the cold water can absorb the heat received by the partition plate 41 in the circulating process, and then the water with the temperature rising after absorbing the heat is discharged through the water outlet pipe 44, so that the heat dissipation of the partition plate 41 is realized, the heat productivity transmitted from the base 1 to the static contact 2 is reduced, and because the heat productivity received by the static contact 2 is reduced, thereby avoiding the situation that the service life of the static contact 2 is reduced due to the deformation of the static contact 2 caused by high temperature.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A static contact support of a circuit breaker is characterized by comprising a base (1), a static contact (2), a damping component (3) and a heat dissipation component (4);
the static contact (2) is connected with the base (1) through the shock absorption component (3), and the shock absorption component (3) is located between the base (1) and the static contact (2);
radiator unit (4) include baffle (41), connecting pipe (42), inlet tube (43), outlet pipe (44) and transmission component (45), baffle (41) fixed mounting be in the upper surface of base (1), connecting pipe (42) cover is established the outside of baffle (41), inlet tube (43) with connecting pipe (42) intercommunication, and be located connecting pipe (42) are kept away from one side of baffle (41), outlet pipe (44) with connecting pipe (42) intercommunication, and be located connecting pipe (42) are kept away from one side of inlet tube (43), transmission component (45) are located base (1) is close to one side of baffle (41).
2. Static contact holder for circuit breakers according to claim 1,
the transmission component (45) comprises a water pump (451) and a transmission pipe (452), wherein the water pump (451) is communicated with the water inlet pipe (43) and is fixedly arranged on the upper surface of the base (1); the transmission pipe (452) is communicated with the water pump (451) and is positioned on one side of the water pump (451) far away from the water inlet pipe (43).
3. Static contact holder for circuit breakers according to claim 2,
the transmission member (45) further comprises a water storage tank (453), and the water storage tank (453) is communicated with the transmission pipe (452) and the water outlet pipe (44) and is fixedly installed on the upper surface of the base (1).
4. A stationary contact carrier for a circuit breaker as claimed in claim 3,
the shock absorption assembly (3) comprises a fixed block (31) and a movable block (32), and the fixed block (31) is fixedly arranged on the upper surface of the base (1); the movable block (32) is fixedly arranged on the lower surface of the static contact (2).
5. Static contact holder for circuit breakers according to claim 4,
the shock absorption assembly (3) further comprises a sliding rail (33) and a sliding block (34), and the sliding rail (33) is fixedly installed on the inner side of the fixed block (31); the sliding block (34) is connected with the sliding rail (33) in a sliding mode, fixedly connected with the movable block (32), and located between the sliding rail (33) and the movable block (32).
6. Static contact holder for circuit breakers according to claim 5,
damping component (3) still include spring (35), the both sides of spring (35) respectively with slider (34) with fixed block (31) fixed connection, spring (35) are located the inboard of slide rail (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111297438.7A CN113871267A (en) | 2021-11-04 | 2021-11-04 | Static contact support of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111297438.7A CN113871267A (en) | 2021-11-04 | 2021-11-04 | Static contact support of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113871267A true CN113871267A (en) | 2021-12-31 |
Family
ID=78986850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111297438.7A Pending CN113871267A (en) | 2021-11-04 | 2021-11-04 | Static contact support of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113871267A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206059322U (en) * | 2016-08-18 | 2017-03-29 | 安徽明都电气有限公司 | A kind of heat abstractor of chopper |
| CN207074620U (en) * | 2017-08-12 | 2018-03-06 | 玉环县华通电器机械厂 | A kind of buffer unit on high voltage ground switch static contact |
| CN108565177A (en) * | 2018-05-03 | 2018-09-21 | 湖北大禹汉光真空电器有限公司 | A kind of contact cooling system of good heat dissipation effect |
| CN208655492U (en) * | 2018-08-17 | 2019-03-26 | 苏州施源特电气有限公司 | A kind of high-performance vacuum circuit breaker |
| CN213211983U (en) * | 2020-11-20 | 2021-05-14 | 北京华东电气股份有限公司 | Contact structure of high-voltage circuit breaker |
| CN213242463U (en) * | 2020-11-17 | 2021-05-18 | 中鸿泰电气有限公司 | Static contact structure of universal circuit breaker |
| CN113096975A (en) * | 2021-04-09 | 2021-07-09 | 上海舒盈科技股份有限公司 | Online temperature measurement heat abstractor of intelligence power contact |
-
2021
- 2021-11-04 CN CN202111297438.7A patent/CN113871267A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206059322U (en) * | 2016-08-18 | 2017-03-29 | 安徽明都电气有限公司 | A kind of heat abstractor of chopper |
| CN207074620U (en) * | 2017-08-12 | 2018-03-06 | 玉环县华通电器机械厂 | A kind of buffer unit on high voltage ground switch static contact |
| CN108565177A (en) * | 2018-05-03 | 2018-09-21 | 湖北大禹汉光真空电器有限公司 | A kind of contact cooling system of good heat dissipation effect |
| CN208655492U (en) * | 2018-08-17 | 2019-03-26 | 苏州施源特电气有限公司 | A kind of high-performance vacuum circuit breaker |
| CN213242463U (en) * | 2020-11-17 | 2021-05-18 | 中鸿泰电气有限公司 | Static contact structure of universal circuit breaker |
| CN213211983U (en) * | 2020-11-20 | 2021-05-14 | 北京华东电气股份有限公司 | Contact structure of high-voltage circuit breaker |
| CN113096975A (en) * | 2021-04-09 | 2021-07-09 | 上海舒盈科技股份有限公司 | Online temperature measurement heat abstractor of intelligence power contact |
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Application publication date: 20211231 |