CN110880739B - High-voltage circuit emergency protection device - Google Patents
High-voltage circuit emergency protection device Download PDFInfo
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- CN110880739B CN110880739B CN201911285465.5A CN201911285465A CN110880739B CN 110880739 B CN110880739 B CN 110880739B CN 201911285465 A CN201911285465 A CN 201911285465A CN 110880739 B CN110880739 B CN 110880739B
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- China
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- fixedly arranged
- bevel gear
- rod
- metal
- alarm bell
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/002—Thermally-actuated switches combined with protective means
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- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a high-voltage circuit emergency protection device, which comprises a protector shell, wherein transmission cavities are symmetrically arranged in the protector shell from left to right, support columns are symmetrically and fixedly arranged on the lower wall of the transmission cavities from left to right, iron cores are fixedly arranged at the upper ends of the support columns, high-voltage wires are wound on the iron cores, and the lower ends of the high-voltage wires are electrically connected with a controller shell.
Description
Technical Field
The invention relates to the field of circuit protection, in particular to an emergency protection device for a high-voltage circuit.
Background
The high-voltage circuit refers to a circuit with the alternating-current voltage of a distribution line above 1000V of an alarm bell transmission cavity or the direct-current voltage above 1500V of a signal line, the alternating-current voltage class of the alarm bell transmission cavity in the power system is an extra-high voltage power supply circuit, the alarm bell transmission cavity is usually only used as a large-power long-distance power transmission line, compared with a common circuit, the high-voltage circuit has special hazard and is easy to cause accidents, an emergency protection device is often arranged in the high-voltage circuit, the traditional high-voltage circuit protection device is too harsh in triggering conditions, and therefore electrical accidents such as equipment damage and the like often occur, and the existing high-voltage circuit protection device needs to be improved.
Disclosure of Invention
The technical problem is as follows: the traditional high-voltage circuit protection device has too severe triggering conditions, so that electric accidents such as equipment damage and the like often occur.
The high-voltage circuit emergency protection device comprises a protector shell, wherein transmission cavities are symmetrically arranged in the protector shell in the left-right direction, support columns are symmetrically and fixedly arranged on the lower wall of the transmission cavities in the left-right direction, iron cores are fixedly arranged at the upper ends of the support columns, high-voltage wires are wound on the iron cores, the lower ends of the high-voltage wires are electrically connected with a controller shell, the controller shell can control the opening and closing of circuits, a temperature conducting rod is fixedly arranged at one end, away from the center of the device, of the iron core and can monitor the circuit state, a signal wire is electrically connected to one end, away from the iron cores, of the temperature conducting rod, the lower end of the signal wire is connected with the upper end of the controller shell, four fixing rods are fixedly arranged on the upper wall surface of the protector shell, an alarm bell is fixedly arranged at the upper ends of the fixing rods, and a knocking hammer is fixedly arranged at one end, the upper wall surface of the protector shell is bilaterally provided with alarm bell transmission cavities, alarm bell transmission devices are arranged in the alarm bell transmission cavities, the alarm bell transmission devices can control the knocking hammers to slide left and right, and the upper ends of the signal wires are electrically connected with the alarm bell transmission devices.
Wherein the alarm bell transmission device comprises a first motor fixedly arranged on the lower wall surface of the alarm bell transmission cavity, the lower end of the first motor is electrically connected with the signal wire, the upper end of the first motor is fixedly provided with a first power shaft, a first bevel gear is fixedly arranged at the upper end of the first power shaft, a second bevel gear is arranged at the upper end of the first bevel gear in a meshing connection manner, a positioning shaft is fixedly arranged on the second bevel gear shaft core, a cam is fixedly arranged on the positioning shaft and is positioned at the rear end of the second bevel gear, one end of the cam, which is close to the alarm bell, is in contact connection with a knocking rod, when the cam rotates, the knocking rod can be driven to slide left and right, a limit plate is fixedly arranged on the knocking rod, and the limiting plate is provided with knocking hammers which are vertically symmetrical and are close to one end of the cam, the knocking hammers are elastically connected with the limiting plate, and one end of each knocking hammer, which is far away from the limiting plate, is fixedly connected with the outer wall of the protector shell.
The temperature guide rod comprises a thermosensitive metal sheet fixedly arranged in the temperature guide rod, fixed blocks are fixedly arranged at the upper end and the lower end of the thermosensitive metal sheet, the thermosensitive metal sheet is fixedly arranged between the fixed blocks, an inherent temperature sensor is arranged at one end, far away from the iron core, of the temperature guide rod, and one end, far away from the thermosensitive metal sheet, of the temperature sensor is electrically connected with the signal wire.
Wherein a control cavity is arranged in the controller shell, a second motor is arranged in one side wall of the control cavity close to the iron core, the upper end of the second motor is electrically connected with the signal line, one end of the second motor far away from the iron core is provided with a second power shaft in a power connection manner, one end of the second power shaft far away from the second motor is fixedly provided with a third bevel gear, the third bevel gear is provided with a fourth bevel gear in a meshing connection manner, the axle center of the fourth bevel gear is fixedly provided with a first belt pulley shaft, the first belt pulley is positioned at the front end of the fourth bevel gear, the first belt pulley is rotatably connected with a belt, the lower end of the belt is connected with a second belt pulley, the axle center of the second belt pulley is fixedly provided with a second belt pulley shaft, the second belt pulley shaft is fixedly provided with a first metal rod, and the high-voltage wire is electrically connected with the first metal rod, and a metal block is fixedly arranged at the lower end of the first metal rod.
Beneficially, a second metal rod is fixedly arranged in the control cavity, one end, far away from the first metal rod, of the second metal rod is electrically connected with the high-voltage line, an articulated shaft is arranged on the second metal rod in a rotating connection mode, a third metal rod is fixedly arranged on the articulated shaft and can be in contact connection with the metal block, an insulating block is fixedly arranged at one end, close to the first metal rod, of the second metal rod, a spring is elastically connected to the lower end of the insulating block, and the lower end of the spring is elastically connected with the third metal rod.
The invention has the beneficial effects that: the temperature detection device is simple in structure, convenient to maintain and convenient to use, the temperature inside the circuit can be detected through the built-in temperature detection device, when the circuit breaks down due to overload or short circuit, the temperature can be rapidly changed, and then the protection measures are started through the trigger device, so that the probability of fire of the circuit is reduced, the circuit is rapidly protected, and major safety accidents are prevented.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure "A" of FIG. 1;
FIG. 3 is a schematic view of the structure "B" of FIG. 1;
fig. 4 is a schematic structural diagram of the controller housing of fig. 3.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a high-voltage circuit emergency protection device, which is mainly applied to the field of circuit protection, and the invention is further explained by combining the attached drawings of the invention:
the invention relates to a high-voltage circuit emergency protection device, which comprises a protector shell 11, wherein a transmission cavity 200 is symmetrically arranged in the protector shell 11, support columns 17 are symmetrically and fixedly arranged on the lower wall of the transmission cavity 200, an iron core 16 is fixedly arranged at the upper end of each support column 17, a high-voltage wire 18 is wound on each iron core 16, the lower end of each high-voltage wire 18 is electrically connected with a controller shell 35, the controller shell 35 can control the opening and closing of a circuit, a temperature conducting rod 28 is fixedly arranged at one end of each iron core 16, which is far away from the center of the device, the temperature conducting rod 28 can monitor the circuit state, a signal wire 15 is electrically connected at one end of each temperature conducting rod 28, which is far away from the iron core 16, the lower end of the signal wire 15 is connected with the upper end of the controller shell 35, four fixing rods 14 are fixedly arranged on the upper wall surface of the protector, the device is characterized in that one end of the alarm bell 13, which is far away from the center of the device, is fixedly provided with a knocking hammer 12, the upper wall surface of the protector shell 11 is provided with alarm bell transmission cavities 100 in bilateral symmetry, alarm bell transmission devices 101 are arranged in the alarm bell transmission cavities 100, the alarm bell transmission devices 101 can control the knocking hammer 12 to slide left and right, and the upper end of the signal wire 15 is electrically connected with the alarm bell transmission devices 101.
According to the embodiment, the following detailed description will be made on the alarm transmission device 101, where the alarm transmission device 101 includes a first motor 27 fixedly disposed on the lower wall surface of the alarm transmission cavity 100, the lower end of the first motor 27 is electrically connected to the signal line 15, the upper end of the first motor 27 is fixedly disposed with a first power shaft 26, the upper end of the first power shaft 26 is fixedly disposed with a first bevel gear 25, the upper end of the first bevel gear 25 is engaged with a second bevel gear 23, the axis of the second bevel gear 23 is fixedly disposed with a positioning shaft 24, the positioning shaft 24 is fixedly disposed with a cam 22, the cam 22 is disposed at the rear end of the second bevel gear 23, one end of the cam 22 close to the alarm bell 13 is connected with a striking rod 21 in a contacting manner, and when the cam 22 rotates, the striking rod 21 can be driven to slide left and right, the striking rod 21 is fixedly disposed with a limiting plate 19, one end of the limiting plate 19 close to the cam 22 is provided with striking hammers 12 in an up-and down symmetrical manner, the knocking hammer 12 is elastically connected with the limiting plate 19, and one end of the knocking hammer 12, which is far away from the limiting plate 19, is fixedly connected with the outer wall of the protector shell 11.
According to the embodiment, the temperature-sensing rod 28 is described in detail below, the temperature-sensing rod 28 includes a heat-sensitive metal sheet 32 fixed in the temperature-sensing rod 28, fixing blocks 31 are fixed at upper and lower ends of the heat-sensitive metal sheet 32, the heat-sensitive metal sheet 32 is fixed between the fixing blocks 31, a temperature sensor 33 is fixed at an end of the temperature-sensing rod 28 away from the iron core 16, and an end of the temperature sensor 33 away from the heat-sensitive metal sheet 32 is electrically connected to the signal line 15.
According to the embodiment, the controller housing 35 is described in detail below, a control chamber 300 is disposed in the controller housing 35, a second motor 36 is disposed in a side wall of the control chamber 300 close to the iron core 16, an upper end of the second motor 36 is electrically connected to the signal line 15, a second power shaft 37 is disposed in a power connection at an end of the second motor 36 away from the iron core 16, a third bevel gear 38 is fixedly disposed at an end of the second power shaft 37 away from the second motor 36, a fourth bevel gear 39 is engaged and connected to the third bevel gear 38, a first pulley shaft 42 is fixedly disposed at an axis of the fourth bevel gear 39, a first pulley 41 is fixedly disposed on the first pulley shaft 42, the first pulley 41 is disposed at a front end of the fourth bevel gear 39, a belt 43 is rotatably connected to the first pulley 41, a second pulley 44 is connected to a lower end of the belt 43, a second pulley shaft 45 is fixedly arranged at the axis of the second pulley 44, a first metal rod 46 is fixedly arranged on the second pulley shaft 45, the high-voltage wire 18 is electrically connected with the first metal rod 46, and a metal block 47 is fixedly arranged at the lower end of the first metal rod 46.
Advantageously, a second metal rod 51 is fixedly arranged in the control chamber 300, one end of the second metal rod 51, which is far away from the first metal rod 46, is electrically connected with the high-voltage line 18, an articulated shaft 49 is rotatably connected to the second metal rod 51, a third metal rod 48 is fixedly arranged on the articulated shaft 49, the third metal rod 48 can be in contact connection with the metal block 47, an insulating block 53 is fixedly arranged at one end of the second metal rod 51, which is near to the first metal rod 46, a spring 52 is elastically connected to the lower end of the insulating block 53, and the lower end of the spring 52 is elastically connected to the third metal rod 48.
The following detailed description of the steps of the emergency protection device for a high voltage circuit with reference to fig. 1 to 4 is provided: in the initial state, the first motor 27 is not started, and the second motor 36 is not started, so that the third metal rod 48 is in contact connection with the metal block 47;
when the temperature in the iron core 16 and the high-voltage wire 18 begins to rise, the temperature of the temperature conducting rod 28 begins to rise rapidly, the temperature sensitive metal sheet 32 begins to expand, the temperature sensitive metal sheet 32 contacts the temperature sensor 33, the temperature sensor 33 is switched on, the first motor 27 and the second motor 36 are started through the signal wire 15, the second motor 36 drives the first pulley shaft 42 to rotate through the second power shaft 37, the third bevel gear 38 and the fourth bevel gear 39, the first pulley shaft 42 drives the second pulley shaft 45 to rotate through the first pulley 41, the belt 43 and the second pulley 44, the second pulley shaft 45 drives the first metal rod 46 to rotate, the first metal rod 46 drives the metal block 47 to rotate, the metal block 47 is separated from the third metal rod 48, the high-voltage wire 18 is disconnected, the circuit is disconnected, and the first motor 27 drives the first power shaft 26 and the first bevel gear 25, The second bevel gear 23 drives the positioning shaft 24 to rotate, the positioning shaft 24 drives the knocking rod 21 to slide left and right through the cam 22, and the knocking rod 21 further drives the knocking hammer 12 to knock the alarm bell 13 to give an alarm.
The invention has the beneficial effects that: the temperature detection device is simple in structure, convenient to maintain and convenient to use, the temperature inside the circuit can be detected through the built-in temperature detection device, when the circuit breaks down due to overload or short circuit, the temperature can be rapidly changed, and then the protection measures are started through the trigger device, so that the probability of fire of the circuit is reduced, the circuit is rapidly protected, and major safety accidents are prevented.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (1)
1. A high-voltage circuit emergency protection device comprises a protector shell, wherein transmission cavities are symmetrically arranged in the protector shell in a bilateral mode, support columns are symmetrically and fixedly arranged on the lower wall of the transmission cavities in the bilateral mode, iron cores are fixedly arranged at the upper ends of the support columns, high-voltage wires are wound on the iron cores, the lower ends of the high-voltage wires are electrically connected with a controller shell, the controller shell can control the opening and closing of circuits, a temperature conducting rod is fixedly arranged at one end, away from the center of the device, of each iron core, the temperature conducting rod can monitor the circuit state, one end, away from the iron cores, of each temperature conducting rod is electrically connected with a signal wire, the lower end of each signal wire is connected with the upper end of the controller shell, four fixing rods are fixedly arranged on the upper wall surface of the protector shell, an alarm bell is fixedly arranged at the upper ends of the fixing rods, one end, away from the center, the alarm bell transmission cavity is internally provided with an alarm bell transmission device, the alarm bell transmission device can control the knocking hammer to slide left and right, and the upper end of the signal wire is electrically connected with the alarm bell transmission device; the alarm bell transmission device comprises a first motor fixedly arranged on the lower wall surface of the alarm bell transmission cavity, the lower end of the first motor is electrically connected with the signal wire, a first power shaft is fixedly arranged at the upper end of the first motor, a first bevel gear is fixedly arranged at the upper end of the first power shaft, the upper end of the first bevel gear is engaged and connected with a second bevel gear, the gear core of the second bevel gear is fixedly provided with a positioning shaft, a cam is fixedly arranged on the positioning shaft, the cam is positioned at the rear end of the second bevel gear, one end of the cam, which is close to the alarm bell, is in contact connection with a knocking rod, when the cam rotates, the knocking rod can be driven to slide left and right, a limit plate is fixedly arranged on the knocking rod, knocking hammers are symmetrically arranged at the upper part and the lower part of one end, close to the cam, of the limiting plate, the knocking hammers are elastically connected with the limiting plate, and one ends, far away from the limiting plate, of the knocking hammers are fixedly connected with the outer wall of the protector shell; the temperature guide rod comprises a thermosensitive metal sheet fixedly arranged in the temperature guide rod, fixed blocks are fixedly arranged at the upper end and the lower end of the thermosensitive metal sheet, the thermosensitive metal sheet is fixedly arranged between the fixed blocks, a temperature sensor is fixed at one end of the temperature guide rod, which is far away from the iron core, and one end of the temperature sensor, which is far away from the thermosensitive metal sheet, is electrically connected with the signal wire; a control cavity is arranged in the controller shell, a second motor is arranged in one side wall of the control cavity, which is close to the iron core, the upper end of the second motor is electrically connected with the signal line, one end of the second motor, which is far away from the iron core, is in power connection with a second power shaft, one end of the second power shaft, which is far away from the second motor, is fixedly provided with a third bevel gear, the third bevel gear is in meshing connection with a fourth bevel gear, the axis of the fourth bevel gear is fixedly provided with a first belt wheel shaft, the first belt wheel is fixedly provided with a first belt wheel, the first belt wheel is positioned at the front end of the fourth bevel gear, the first belt wheel is rotatably connected with a belt, the lower end of the belt is connected with a second belt wheel, the axis of the second belt wheel is fixedly provided with a second belt wheel shaft, the second belt wheel shaft is fixedly provided with a first metal rod, and the high-voltage, a metal block is fixedly arranged at the lower end of the first metal rod; the control intracavity has set firmly the second metal pole, the second metal pole is kept away from first metal pole one end electric connection with high-voltage line electric connection, the last rotation connection of second metal pole is equipped with the articulated shaft, the articulated shaft has set firmly the third metal pole, the third metal pole can with the metal block contact is connected, the second metal pole is close to first metal pole one end has set firmly the collets, collets lower extreme elastic connection is equipped with the spring, the spring lower extreme with third metal pole elastic connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911285465.5A CN110880739B (en) | 2019-12-13 | 2019-12-13 | High-voltage circuit emergency protection device |
| GBGB2004853.4A GB202004853D0 (en) | 2019-12-13 | 2020-04-02 | An emergency protection device for high voltage circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911285465.5A CN110880739B (en) | 2019-12-13 | 2019-12-13 | High-voltage circuit emergency protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110880739A CN110880739A (en) | 2020-03-13 |
| CN110880739B true CN110880739B (en) | 2020-07-24 |
Family
ID=69731566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911285465.5A Active CN110880739B (en) | 2019-12-13 | 2019-12-13 | High-voltage circuit emergency protection device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110880739B (en) |
| GB (1) | GB202004853D0 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883985B (en) * | 2020-08-12 | 2021-07-20 | 山东万重山电子有限公司 | Monitoring type electric appliance protection socket equipment |
| CN113928788B (en) * | 2021-10-13 | 2023-10-20 | 华能国际电力股份有限公司上海石洞口第二电厂 | Non-contact belt deviation warning device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2684248B1 (en) * | 1991-11-22 | 1997-04-30 | Pioch Sa | ELECTRONIC APPARATUS FOR MEASURING AND PROTECTING THE OPERATION OF THE OIL TRANSFORMER. |
| CN203910432U (en) * | 2014-06-17 | 2014-10-29 | 浙江电力变压器有限公司 | Automatic cooling type transformer |
| CN107863238B (en) * | 2017-10-27 | 2019-07-09 | 温州亿通自动化设备有限公司 | A kind of power transformer |
| CN207706565U (en) * | 2017-12-29 | 2018-08-07 | 张秀德 | Electrical equipment warning device |
-
2019
- 2019-12-13 CN CN201911285465.5A patent/CN110880739B/en active Active
-
2020
- 2020-04-02 GB GBGB2004853.4A patent/GB202004853D0/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN110880739A (en) | 2020-03-13 |
| GB202004853D0 (en) | 2020-05-20 |
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Effective date of registration: 20200630 Address after: 4-5f, No. 897, Fanggong Road, Jiaxing, Zhejiang Province, 314000 Applicant after: Zhejiang leen Engineering Design Consulting Co.,Ltd. Address before: No. 64, Shendu village, Dongfang Town, Jinyun County, Lishui City, Zhejiang Province Applicant before: Jinyun yepu Electronic Technology Co.,Ltd. |
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Effective date of registration: 20230713 Address after: No. 5, Fengyan West Road, Longqiao Street, Yanzhou District, Jining, Shandong Province, 272000 (west of Lijiawan Community) Patentee after: Jining Yuehua Electrical Installation Engineering Co.,Ltd. Address before: 314000 4-5f, No. 897, Fanggong Road, Jiaxing City, Zhejiang Province Patentee before: Zhejiang leen Engineering Design Consulting Co.,Ltd. |
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