CN214426846U - Temperature overload alarm device for high-voltage vacuum circuit breaker - Google Patents
Temperature overload alarm device for high-voltage vacuum circuit breaker Download PDFInfo
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- CN214426846U CN214426846U CN202120785792.3U CN202120785792U CN214426846U CN 214426846 U CN214426846 U CN 214426846U CN 202120785792 U CN202120785792 U CN 202120785792U CN 214426846 U CN214426846 U CN 214426846U
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Abstract
The utility model discloses a high-pressure vacuum circuit breaker temperature overload alarm device, include: the circuit breaker comprises a circuit breaker wire box, a bearing piece, a first insulating fixing piece and a second insulating fixing piece; the bearing piece is arranged in the circuit breaker wire box, and an air flow through groove is formed in the bottom of the bearing piece; the first insulating fixing piece is arranged in the bearing piece, a bimetallic strip is arranged on the first insulating fixing piece, and a pair of first contact electrodes is arranged at one end, far away from the first insulating fixing piece, of the bimetallic strip; the second insulating fixing piece is arranged in the bearing piece. The utility model discloses a setting of corresponding mechanism on the high-pressure vacuum circuit breaker, the effectual temperature to circuit breaker inside detects, has reduced the circuit breaker and has placed the effect that receives air environmental pollution ageing at outdoor inner line, has reduced the circuit problem that the high-temperature that appears and lead to under the influence of high temperature weather, has reduced and has lasted the inside condition that appears the electricity and catch fire of high temperature messenger circuit breaker, has played effectual guard action to a certain extent.
Description
Technical Field
The utility model belongs to the technical field of vacuum circuit breaker, concretely relates to high-pressure vacuum circuit breaker temperature overload alarm device.
Background
The high-voltage circuit breaker is also called a high-voltage switch and is used for cutting off or closing no-load current and load current in a high-voltage circuit, and cutting off overload current and short-circuit current under the action of a relay protection device when a system breaks down, so that the high-voltage circuit breaker has a perfect arc extinguishing structure and sufficient current breaking capacity, and can be roughly divided into: the oil circuit breaker, the compressed air circuit breaker, the vacuum circuit breaker and the like are widely applied to a protection and control unit of power grid equipment because arc extinguishing media of the vacuum circuit breaker and arc extinguishing contact gaps are high vacuum.
Current high-pressure vacuum circuit breaker generally places and is connected with the input electric wire netting outdoors, because the circuit breaker is placed outdoors, the inner line receives the ageing influence of air circumstance pollution easily, circuit fault appears, long-time use and under the high temperature weather condition, the inside condition that the high temperature appears easily of vacuum circuit breaker, cause the influence to the inner line, lead to the dangerous condition such as short circuit even electricity to appear in the circuit breaker inner line, can cause the circuit to catch fire when serious, cause serious damage to whole electric wire netting circuit.
Therefore, in view of the above technical problems, it is necessary to provide a temperature overload warning device for a high voltage vacuum circuit breaker.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-pressure vacuum circuit breaker temperature overload alarm device to solve the long-time external problem that leads to the dangerous condition to appear in the internal line that receives the temperature influence outdoor of above-mentioned current high-pressure vacuum circuit breaker.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
a temperature overload alarm device for a high-voltage vacuum circuit breaker comprises: the circuit breaker comprises a circuit breaker wire box, a bearing piece, a first insulating fixing piece and a second insulating fixing piece;
the bearing piece is arranged in the circuit breaker wire box, and an air flow through groove is formed in the bottom of the bearing piece;
the first insulating fixing piece is arranged in the bearing piece, a bimetallic strip is arranged on the first insulating fixing piece, and a pair of first contact electrodes is arranged at one end, far away from the first insulating fixing piece, of the bimetallic strip;
the second insulating fixing piece is arranged in the bearing piece, and a pair of surfaces, close to each other, of the second insulating fixing piece are provided with second contact electrodes.
Further, the both sides of circuit breaker line case are equipped with the ventilation screen panel respectively, play the effect of protection to first fan and second fan, make first fan and second fan be difficult for receiving destruction, improve life, and it is a pair of be equipped with first fan and second fan in the ventilation screen panel respectively, play certain cooling radiating effect when too high to the temperature in the circuit breaker line case, make the difficult continuation of the temperature in the circuit breaker line case improve, provide certain time for the staff catches up with the witnessed inspections.
Further, the circuit breaker line case is close to the one side of a pair of ventilation screen panel and is dug the through-hole, be equipped with the dust screen in the through-hole, reduce in first fan and the second fan during operation that some matters such as dust impurity get into the circuit breaker line incasement, make the circuit of circuit breaker line incasement be difficult for receiving the interference of dust, played certain guard action to the circuit of circuit breaker line incasement.
Further, electrically connected with bee calling organ and warning lantern festival on the insulating mounting of second, when the temperature of circuit breaker line incasement is too high, bimetallic strip switch-on circuit makes bee calling organ and the work of warning lantern festival, and the warning is indoor and outdoor staff goes to circuit breaker line case department before and overhauls, the insulating mounting of second respectively with first fan and second fan electric connection, can start first fan and second fan when making the bimetallic strip trigger, to the interior aeration cooling that carries out of circuit breaker line case, reduce the temperature lifting speed of circuit breaker line incasement, make things convenient for the staff to arrive the scene.
Further, the fixed plate is arranged on the bearing part, a plurality of fixing bolts are connected between the fixed plate and the bearing part, the bearing part is fixed, the ageing problem of the equipment using the bimetallic strip and connected for a long time can also occur, the worker can check the interior of the bearing part at regular time, and the connected circuit can run normally.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses a setting of corresponding mechanism on the high-pressure vacuum circuit breaker, the effectual temperature to circuit breaker inside detects, has reduced the circuit breaker and has placed the effect that receives air environmental pollution ageing at outdoor inner line, has reduced the circuit problem that the high-temperature that appears and lead to under the influence of high temperature weather, has reduced and has lasted the inside condition that appears the electricity and catch fire of high temperature messenger circuit breaker, has played effectual guard action to a certain extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 described in 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 perspective view of a temperature overload alarm device of a high-voltage vacuum circuit breaker according to an embodiment of the present invention;
fig. 2 is a sectional view of a front view of a temperature overload alarm device of a high-voltage vacuum circuit breaker according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
fig. 4 is a schematic structural diagram at B in fig. 2.
In the figure: 1. the circuit breaker comprises a circuit breaker wire box, a bearing piece 2, an air circulation groove 3, a first insulating fixing piece 4, a bimetallic strip 5, a first contact electrode 6, a second insulating fixing piece 7, a ventilation mesh cover 8, a first fan 9, a second fan 10, a dust screen 11, a buzzer 12, an alarm small lamp 13, a fixing plate 14, a fixing bolt 15 and a second contact electrode 16.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiments, and the structural, method, or functional changes made by those skilled in the art according to the embodiments are all included in the scope of the present invention.
The utility model discloses a high-pressure vacuum circuit breaker temperature overload alarm device, refer to fig. 1-4 and show, include: the circuit breaker comprises a circuit breaker wire box 1 for carrying and connecting a circuit breaker and a line, a carrying piece 2 for placing a bimetallic strip 5, a first insulating fixing piece 4 and a second insulating fixing piece 7 for supporting the bimetallic strip 5.
Referring to fig. 2-4, bearing part 2 is arranged in circuit breaker line box 1, and the temperature in circuit breaker line box 1 is conveniently detected, and bearing part 2 bottom is cut the logical groove 3 of air current, improves the perception of bimetallic strip 5 to the temperature in circuit breaker line box 1, can make bimetallic strip 5 can in time trigger under the certain temperature condition.
Wherein, one side of the bearing part 2 is provided with an external power socket, which is convenient for users to connect the bimetallic strip 5 with a power supply.
Referring to fig. 4, be equipped with first insulation fixing piece 4 in the carrier 2, be equipped with bimetallic strip 5 on the first insulation fixing piece 4, bimetallic strip 5's the bending interval that is heated is 45 ℃ -60 ℃, the temperature that general circuit softens is between 65 ℃ -90 ℃, the deformation temperature setting that is heated of bimetallic strip 5 is on the low side, the condition that the difficult emergence of temperature continuously heaies up of messenger's circuit breaker line case 1 temperature, can be in the very first time to circuit breaker line case 1 interior cooling process and notice alarm.
Referring to fig. 2-4, a pair of first contact electrodes 6 is disposed on one end of the bimetal strip 5 away from the first insulating fixing member 4, a pair of second insulating fixing members 7 is disposed in the bearing member 2, and second contact electrodes 16 are disposed on surfaces of the pair of second insulating fixing members 7 close to each other, so that the first contact electrodes 6 contact the second contact electrodes 16 through deformation of the bimetal strip 5, and a circuit is connected to perform a cooling alarm.
Referring to fig. 1-4, the two sides of the circuit breaker line box 1 are respectively provided with a ventilation mesh enclosure 8, which plays a role in protecting a first fan 9 and a second fan 10, so that the first fan 9 and the second fan 10 are not easy to be damaged, the service life is prolonged, the first fan 9 and the second fan 10 are respectively arranged in the pair of ventilation mesh enclosures 8, and a certain cooling and heat dissipation effect is played when the temperature in the circuit breaker line box 1 is too high, so that the temperature in the circuit breaker line box 1 is not easy to be continuously increased, and a certain time is provided for workers to arrive at the site detection.
Referring to fig. 3, a through hole is drilled in one surface of the circuit breaker line box 1, which is close to the pair of ventilation mesh enclosures 8, a dust screen 11 is arranged in the through hole, and when the first fan 9 and the second fan 10 work, substances such as dust and impurities in the air are reduced to enter the circuit breaker line box 1, so that the circuit in the circuit breaker line box 1 is not easily interfered by dust, and the circuit in the circuit breaker line box 1 is protected to a certain extent.
Referring to fig. 1, the second insulating fixing member 7 is electrically connected with a buzzer 12 and a small alarm lamp 13, when the temperature in the circuit breaker line box 1 is too high, the bimetallic strip 5 is connected with a circuit, the buzzer 12 and the small alarm lamp 13 work, indoor and outdoor workers are reminded to go to the circuit breaker line box 1 for maintenance, the second insulating fixing member 7 is respectively electrically connected with a first fan 9 and a second fan 10, the first fan 9 and the second fan 10 can be started when the bimetallic strip 5 is triggered, the circuit breaker line box 1 is ventilated and cooled, the temperature lifting speed in the circuit breaker line box 1 is reduced, and the workers can arrive at the scene conveniently.
Specifically, the buzzer 12 and the small alarm lamp 13 are arranged indoors, so that indoor workers can detect the circuit breaker in the first time before being informed, and some dangerous situations occurring in the circuit breaker line box 1 are reduced.
Referring to fig. 4, a fixing plate 14 is arranged on the bearing part 2, a plurality of fixing bolts 15 are connected between the fixing plate 14 and the bearing part 2, the bearing part 2 is fixed, the bimetal 5 and connected equipment can be aged for a long time, and the worker can check the inside of the bearing part 2 at regular time, so that the connected circuit can run normally.
When the temperature of the circuit in the circuit breaker wire box 1 rises due to the influence of external temperature and the like, the bimetallic strip 5 deforms due to the temperature change in the circuit breaker wire box 1, when the temperature in the circuit breaker wire box 1 reaches the deformation region of the bimetallic strip 5, the bimetallic strip 5 is heated and bends outwards, so that the first contact electrode 6 and the second contact electrode 16 are in mutual contact with each other to close a circuit, the buzzer 12 and the small alarm lamp 13 work to give an alarm prompt, the first fan 9 and the second fan 10 also rotate, the temperature of the air in the circuit breaker wire box 1 is discharged outwards to reduce the temperature, the speed of temperature rise in the circuit breaker wire box 1 is reduced, the time is saved for workers to check, when the temperature in the circuit breaker wire box 1 is lower than the deformation region of the bimetallic strip 5, the bimetallic strip 5 resets inwards, the first contact electrode 6 is disconnected with the second contact electrode 16, the buzzer 12, the small alarm lamp 13, the first fan 9 and the second fan 10 stop working.
According to the technical scheme provided by the utility model, the utility model discloses following beneficial effect has:
the utility model discloses a setting of corresponding mechanism on the high-pressure vacuum circuit breaker, the effectual temperature to circuit breaker inside detects, has reduced the circuit breaker and has placed the effect that receives air environmental pollution ageing at outdoor inner line, has reduced the circuit problem that the high-temperature that appears and lead to under the influence of high temperature weather, has reduced and has lasted the inside condition that appears the electricity and catch fire of high temperature messenger circuit breaker, has played effectual guard action to a certain extent.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A temperature overload alarm device for a high-voltage vacuum circuit breaker is characterized by comprising:
a circuit breaker line box (1);
the circuit breaker line box comprises a bearing piece (2) arranged in a circuit breaker line box (1), wherein an air flow through groove (3) is formed in the bottom of the bearing piece (2);
the first insulating fixing piece (4) is arranged in the bearing piece (2), a bimetallic strip (5) is arranged on the first insulating fixing piece (4), and a pair of first contact electrodes (6) is arranged at one end, far away from the first insulating fixing piece (4), of the bimetallic strip (5);
and the second insulating fixing pieces (7) are arranged in the bearing pieces (2), and a pair of surfaces, close to each other, of the second insulating fixing pieces (7) are provided with second contact electrodes (16).
2. The temperature overload warning device for the high-voltage vacuum circuit breaker according to claim 1, wherein two sides of the circuit breaker wire box (1) are respectively provided with a ventilation mesh enclosure (8), and a first fan (9) and a second fan (10) are respectively arranged in a pair of the ventilation mesh enclosures (8).
3. The temperature overload alarm device for the high-voltage vacuum circuit breaker according to claim 1, wherein through holes are drilled on one surface of the circuit breaker wire box (1) close to the pair of ventilation mesh enclosures (8), and dust screens (11) are arranged in the through holes.
4. The temperature overload warning device for the high-voltage vacuum circuit breaker according to claim 1, wherein the second insulating fixing member (7) is electrically connected with a buzzer (12) and a small alarm lamp (13), and the second insulating fixing member (7) is electrically connected with the first fan (9) and the second fan (10) respectively.
5. The temperature overload warning device for the high-voltage vacuum circuit breaker according to claim 1, wherein the supporting member (2) is provided with a fixing plate (14), and a plurality of fixing bolts (15) are connected between the fixing plate (14) and the supporting member (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120785792.3U CN214426846U (en) | 2021-04-16 | 2021-04-16 | Temperature overload alarm device for high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120785792.3U CN214426846U (en) | 2021-04-16 | 2021-04-16 | Temperature overload alarm device for high-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214426846U true CN214426846U (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120785792.3U Active CN214426846U (en) | 2021-04-16 | 2021-04-16 | Temperature overload alarm device for high-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214426846U (en) |
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2021
- 2021-04-16 CN CN202120785792.3U patent/CN214426846U/en active Active
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