CN117498173B - Overheat protection early warning device of high-low voltage power distribution cabinet - Google Patents
Overheat protection early warning device of high-low voltage power distribution cabinet Download PDFInfo
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- CN117498173B CN117498173B CN202410001730.7A CN202410001730A CN117498173B CN 117498173 B CN117498173 B CN 117498173B CN 202410001730 A CN202410001730 A CN 202410001730A CN 117498173 B CN117498173 B CN 117498173B
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- ratchet wheel
- wall
- reciprocating screw
- cabinet body
- temperature detector
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000000670 limiting effect Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000000605 extraction Methods 0.000 description 13
- 238000012423 maintenance Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/0275—Control or determination of height or distance or angle information for sensors or receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/03—Arrangements for indicating or recording specially adapted for radiation pyrometers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention relates to the technical field of power distribution cabinets, in particular to an overheat protection early warning device of a high-low voltage power distribution cabinet, which comprises a cabinet body and a driving mechanism, wherein one end of the driving mechanism penetrates through the top of the cabinet body and is provided with an infrared temperature detector component for detecting the temperature inside the cabinet body.
Description
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to an overheat protection early warning device of a high-low voltage power distribution cabinet.
Background
The components and parts inside the switch board can send out the heat in the course of the work, and the mode of these heat general cooling fan discharges, however, when certain components and parts break down then can produce a large amount of heat, make the inside rapid heating of cabinet, just need the maintainer in time detect and maintain the inside electrical components of switch board this time, and current in order to make maintainer can in time discover the inside temperature abnormality of switch board, can be through the temperature sensor of internal temperature of cabinet internal fixed mounting real-time detection cabinet, send out the alarm by the siren when internal temperature abnormality of cabinet, make maintainer can in time discover the overheated problem of switch board, however this kind of early warning mode of current only can send out the alarm and can not directly reflect out the electrical components that the switch board breaks down and generates heat, lead to maintainer need detect electrical components one by one during the maintenance, this very big increase the work load of maintaining.
Therefore, the invention develops an overheat protection early warning device of the high-low voltage power distribution cabinet to solve the problems.
Disclosure of Invention
The invention aims to provide an overheat protection early warning device of a high-voltage and low-voltage power distribution cabinet, which can detect the temperature in the power distribution cabinet in real time, and can move an infrared temperature detector to the front of an electric appliance element which generates heat when the power distribution cabinet is overheated, so that maintenance personnel can conveniently maintain the power distribution cabinet.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the overheat protection early warning device of the high-low voltage power distribution cabinet comprises a cabinet body, wherein a driving mechanism is arranged at the top of the cabinet body, one end of the driving mechanism penetrates through the top of the cabinet body and is provided with an infrared temperature detector assembly for detecting the temperature in the cabinet body, the infrared temperature detector assembly faces to an electrical element in the cabinet body, when the interior of the cabinet body is overheated, the driving mechanism drives the infrared temperature detector assembly to sequentially detect the temperature of the electrical element in the cabinet body, a microprocessor which is respectively electrically connected with the driving mechanism and the infrared temperature detector assembly is arranged in the cabinet body, and the top of the cabinet body is provided with an audible-visual alarm which is electrically connected with the microprocessor;
the driving mechanism comprises a shell arranged at the top of the cabinet body, a spur gear column and a first reciprocating screw rod are rotatably connected between two opposite side walls of an inner cavity of the shell, a first ratchet wheel component capable of directionally rotating is sleeved on the outer wall of one end of the spur gear column, a second ratchet wheel component capable of directionally rotating is sleeved on the outer wall of one end of the first reciprocating screw rod, the second ratchet wheel component and the first ratchet wheel component are opposite in steering direction, a driving motor capable of positively reversing is arranged on the side wall of one end of the shell, a first spur gear is arranged at the output end of the driving motor, the first spur gear is positioned between the first ratchet wheel component and the second ratchet wheel component and meshed with the first ratchet wheel component and the second ratchet wheel component respectively, a sliding seat which is hollow in the inner part is in threaded connection with the outer wall of the first reciprocating screw rod, a through hole for the spur gear column to slide is formed in a penetrating way, a telescopic mounting piece for mounting an infrared temperature detector component is arranged at the top of the inner cavity of the sliding seat, the telescopic mounting piece is connected with the spur gear column, and a sliding chute matched with the telescopic mounting piece is formed at the top of the cabinet body;
when the driving motor rotates positively, the driving motor drives the first ratchet wheel assembly and the spur gear column to rotate and drives the telescopic mounting piece to stretch back and forth, and when the driving motor rotates reversely, the driving motor drives the second ratchet wheel assembly and the first reciprocating screw rod to rotate and drives the sliding seat to slide back and forth.
Preferably, the first ratchet wheel assembly comprises a first rotating disc and a first inner ratchet wheel, the first rotating disc is fixedly connected to the outer wall of the spur gear column, the first inner ratchet wheel is sleeved on the outer wall of the first rotating disc, the outer wall of the first rotating disc is provided with a first pawl matched with the first inner ratchet wheel, and the outer wall of the first inner ratchet wheel is provided with first gear teeth meshed with the first spur gear;
the second ratchet wheel assembly comprises a second rotating disc and a second inner ratchet wheel, the second rotating disc is fixedly connected to the outer wall of the first reciprocating screw rod, the second inner ratchet wheel is sleeved on the outer wall of the second rotating disc, a second pawl matched with the second inner ratchet wheel is arranged on the outer wall of the second rotating disc, second gear teeth meshed with the first straight gear are arranged on the outer wall of the second inner ratchet wheel, and the directions of inner ratchet teeth of the second inner ratchet wheel and inner ratchet teeth of the first inner ratchet wheel are opposite.
Preferably, the first inner ratchet wheel and the second inner ratchet wheel are rotationally connected with the side wall of the inner cavity of the shell through rotating bearings.
Preferably, the telescopic mounting piece comprises a second reciprocating screw rod, one end of the second reciprocating screw rod is rotationally connected to the top of the inner cavity of the sliding seat, a threaded sleeve is in threaded connection with the outer wall of the second reciprocating screw rod, an infrared temperature detector assembly is mounted at the bottom of the threaded sleeve, a worm wheel is fixedly connected to the outer wall of the second reciprocating screw rod, a worm is connected to the outer wall of the worm wheel in a meshed mode, the worm is rotationally connected with two opposite side walls of the inner cavity of the sliding seat, a second spur gear is fixedly connected to the outer wall of the worm, the second spur gear is in meshed connection with the spur gear column, and the second spur gear is parallel to the spur gear column.
Preferably, the telescopic mounting piece further comprises two telescopic limiting rods, one ends of the limiting rods are fixedly connected with the bottom of the sliding seat, and the other ends of the limiting rods are fixedly connected with the outer wall of the threaded sleeve.
Preferably, the infrared temperature detector assembly comprises a mounting seat, a fixed shaft connected with the threaded sleeve is mounted at the top of the mounting seat, the fixed shaft is connected with the threaded sleeve through a flange, an infrared temperature detector is mounted at one end, close to the electrical element, of the mounting seat, and the infrared temperature detector is electrically connected with the microprocessor.
Preferably, the electric telescopic rods are symmetrically and fixedly connected to the two opposite side walls of the mounting seat, the electric telescopic rods are electrically connected with the microprocessor, the heat shield is fixedly connected to the telescopic ends of the electric telescopic rods, the heat shield is slidably connected with the outer wall of the mounting seat, and one end of the heat shield, which is close to the electric elements, is in a flaring horn shape.
Preferably, the installation seat, the fixed shaft and the second reciprocating screw rod are hollow structures and are mutually communicated, a plurality of air extraction holes are formed in one end, close to the electrical element, of the installation seat, an air extraction pump is installed at the top of the cabinet body and is electrically connected with the microprocessor, an air inlet end of the air extraction pump is communicated with a telescopic air extraction pipe, and the air extraction pipe is communicated with the second reciprocating screw rod.
Preferably, the exhaust pipe is communicated with the second reciprocating screw rod through a rotating flange.
Preferably, an acousto-optic alarm exhaust pipe electrically connected with the microprocessor is arranged at the top of the cabinet body and is a telescopic corrugated pipe.
Compared with the prior art, the invention has the beneficial effects that:
when the power distribution cabinet works, the temperature in the power distribution cabinet can be detected in real time through the infrared temperature detector assembly, and when the temperature in the cabinet body is overheated, the microprocessor controls the driving motor to drive the infrared temperature detector assembly to slide back and forth in the longitudinal direction and the transverse direction respectively, so that the infrared temperature detector assembly can detect the temperature of electric elements in the power distribution cabinet one by one, when detecting that a certain electric element emits heat, the infrared temperature detector assembly stops rotating, and the infrared temperature detector assembly stops in front of the electric element, thereby rapidly judging the failed electric element without reciprocating detection when maintenance personnel needs to maintain the power distribution cabinet, and improving the maintenance efficiency; meanwhile, the driving mechanism can realize the movement of the infrared temperature detector component in different directions only by the forward and reverse rotation of one driving motor, realize the omnibearing detection of electric elements and reduce the production cost of the power distribution cabinet.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a power distribution cabinet with overheat pre-warning protection device;
FIG. 2 is a schematic diagram of an exploded structure of a power distribution cabinet and an overheat protection early warning device of the present invention;
FIG. 3 is a schematic diagram of the overheat protection early warning device of the present invention after the housing is removed;
FIG. 4 is a schematic diagram showing an exploded structure of a first ratchet assembly and a second ratchet assembly of the overheat protection early warning device of the present invention;
FIG. 5 is a schematic view of a first angle structure of a telescopic mounting member and an infrared temperature detector assembly in the overheat protection early warning device of the present invention;
FIG. 6 is a schematic view of a second angular configuration of a telescopic mounting and an infrared temperature detector assembly in the overheat protection early warning device of the present invention;
FIG. 7 is a schematic view of a part of a cross-sectional structure of a telescopic mounting member and an infrared temperature detector assembly in an overheat protection early warning device according to the present invention;
fig. 8 is a system connection block diagram of the overheat protection early warning device of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. a cabinet body; 11. a chute; 2. a driving mechanism; 21. a housing; 22. spur gear columns; 23. a first reciprocating screw rod; 24. a first ratchet assembly; 241. a first rotating disc; 242. a first inner ratchet; 243. a first pawl; 244. a first gear tooth; 25. a second ratchet assembly; 251. a second rotating disc; 252. a second inner ratchet; 253. a second pawl; 254. a second gear tooth; 26. a driving motor; 27. a first straight gear; 28. a sliding seat; 29. a telescopic mounting member; 291. a second reciprocating screw rod; 292. a threaded sleeve; 293. a worm wheel; 294. a worm; 295. a second spur gear; 296. a limit rod; 3. an infrared temperature probe assembly; 31. a mounting base; 32. a fixed shaft; 33. an infrared temperature detector; 34. an electric telescopic rod; 35. a heat shield; 36. an air suction hole; 4. an air extracting pump; 5. an exhaust pipe; 6. rotating the flange; 7. an audible and visual alarm.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-8: the technical scheme provided by the invention is as follows:
the overheat protection early warning device of the high-low voltage power distribution cabinet comprises a cabinet body 1, wherein a driving mechanism 2 is arranged at the top of the cabinet body 1, one end of the driving mechanism 2 penetrates through the top of the cabinet body 1 and is provided with an infrared temperature detector assembly 3 for detecting the internal temperature of the cabinet body 1, the infrared temperature detector assembly 3 faces to an electrical element in the cabinet body 1, when the interior of the cabinet body 1 is overheated, the driving mechanism 2 drives the infrared temperature detector assembly 3 to sequentially detect the temperature of the electrical element in the cabinet body 1, a microprocessor which is respectively electrically connected with the driving mechanism 2 and the infrared temperature detector assembly 3 is arranged in the cabinet body 1, and an acousto-optic alarm 7 which is electrically connected with the microprocessor is arranged at the top of the cabinet body 1;
the driving mechanism 2 comprises a shell 21 arranged at the top of the cabinet body 1, a spur gear column 22 and a first reciprocating screw rod 23 are rotatably connected between two opposite side walls of an inner cavity of the shell 21, a first ratchet wheel assembly 24 capable of directionally rotating is sleeved on the outer wall of one end of the spur gear column 22, a second ratchet wheel assembly 25 capable of directionally rotating is sleeved on the outer wall of one end of the first reciprocating screw rod 23, the second ratchet wheel assembly 25 and the first ratchet wheel assembly 24 are opposite in steering direction, a driving motor 26 capable of positively and reversely rotating is arranged on the side wall of one end of the shell 21, a first spur gear 27 is arranged at the output end of the driving motor 26, the first spur gear 27 is positioned between the first ratchet wheel assembly 24 and the second ratchet wheel assembly 25 and meshed with the first ratchet wheel assembly 24 and the second ratchet wheel assembly 25 respectively, a sliding seat 28 with hollow inside is connected with the outer wall of the first reciprocating screw rod 23 in a threaded manner, a through hole for the spur gear column 22 to slide is formed in the sliding seat 28, a telescopic mounting piece 29 for mounting the infrared temperature detector assembly 3 is arranged at the top of the inner cavity of the sliding seat 28, the telescopic mounting piece 29 is connected with the spur gear column 22, and a chute 11 matched with the telescopic mounting piece 29 is formed at the top of the cabinet body 1;
when the driving motor 26 rotates positively, the driving motor 26 drives the first ratchet wheel assembly 24 and the spur gear column 22 to rotate and drives the telescopic mounting piece 29 to reciprocate and stretch, and when the driving motor 26 rotates reversely, the driving motor 26 drives the second ratchet wheel assembly 25 and the first reciprocating screw rod 23 to rotate and drives the sliding seat 28 to slide reciprocally.
From the above description, it is clear that: when the power distribution cabinet works, the temperature inside the power distribution cabinet can be detected in real time through the infrared temperature detector assembly, and when the infrared temperature detector assembly detects that the temperature inside the cabinet body is overheated, the infrared temperature detector assembly is driven to slide back and forth in the longitudinal direction and the transverse direction respectively through the positive and negative rotation of the driving motor, so that the infrared temperature detector assembly can detect the temperature of electric elements in the power distribution cabinet one by one, when the infrared temperature detector assembly detects that a certain electric element emits heat, the rotation is stopped, the infrared temperature detector assembly is stopped in front of the electric elements, and therefore, when maintenance personnel needs to maintain the power distribution cabinet, the failed electric elements can be rapidly judged without reciprocating detection, and the maintenance efficiency is improved; meanwhile, the driving mechanism can realize the movement of the infrared temperature detector component in different directions only by the forward and reverse rotation of one driving motor, realize the omnibearing detection of electric elements and reduce the production cost of the power distribution cabinet.
Specifically, the first ratchet assembly 24 includes a first rotating disc 241 and a first inner ratchet 242, the first rotating disc 241 is fixedly connected to the outer wall of the spur gear column 22, the first inner ratchet 242 is sleeved on the outer wall of the first rotating disc 241, the outer wall of the first rotating disc 241 is provided with a first pawl 243 which is mutually matched with the first inner ratchet 242, and the outer wall of the first inner ratchet 242 is provided with a first gear tooth 244 which is mutually meshed with the first spur gear 27;
the second ratchet assembly 25 comprises a second rotating disc 251 and a second inner ratchet wheel 252, the second rotating disc 251 is fixedly connected to the outer wall of the first reciprocating screw rod 23, the second inner ratchet wheel 252 is sleeved on the outer wall of the second rotating disc 251, a second pawl 253 matched with the second inner ratchet wheel 252 is arranged on the outer wall of the second rotating disc 251, second gear teeth 254 meshed with the first straight gear 27 are arranged on the outer wall of the second inner ratchet wheel 252, and the inner ratchet teeth of the second inner ratchet wheel 252 and the inner ratchet teeth of the first inner ratchet wheel 242 face opposite directions.
From the above description, it is clear that: the two inner ratchets are meshed with the first straight gear through gear teeth of the outer wall respectively, so that the two inner ratchets can be driven to rotate respectively when the first straight gear rotates, and the two inner ratchets are respectively meshed with the two rotating discs through pawls, so that the rotating discs can be driven to rotate only when the inner ratchets rotate along the meshing direction of the pawls, the straight gear column can only be driven to rotate when the driving motor rotates positively, the reciprocating adjustment of the infrared temperature detector assembly in the longitudinal direction is realized, the first reciprocating screw can only be driven to rotate when the driving motor rotates reversely, the transverse reciprocating adjustment of the infrared temperature detector assembly is realized, and accordingly the infrared temperature detector assembly can comprehensively detect electrical elements in a cabinet body one by one.
Specifically, the first inner ratchet 242 and the second inner ratchet 252 are rotatably connected with the side wall of the inner cavity of the housing 21 through rotating bearings.
From the above description, it is clear that: the first inner ratchet wheel and the second inner ratchet wheel are installed and fixed through the rotary bearing, so that the stability of the positions of the inner ratchet wheels is guaranteed.
Specifically, the telescopic mounting piece 29 includes the second reciprocating screw 291, second reciprocating screw 291 one end rotates to be connected at sliding seat 28 inner chamber top, second reciprocating screw 291 outer wall threaded connection has screw sleeve 292, infrared temperature probe subassembly 3 is installed to screw sleeve 292 bottom, second reciprocating screw 291 outer wall rigid coupling has worm wheel 293, worm wheel 293 outer wall meshing is connected with worm 294, and worm 294 rotates with sliding seat 28 inner chamber relative both sides wall to be connected, worm 294 outer wall rigid coupling has second spur gear 295, second spur gear 295 is connected with spur gear post 22 meshing, and second spur gear 295 and spur gear post 22 parallel arrangement.
From the above description, it is clear that: the rotation of the straight gear column can drive the second straight gear to rotate, so that the second straight gear and the worm are driven to rotate, the worm wheel and the second reciprocating screw rod are further driven to rotate, the threaded sleeve is driven to reciprocate up and down, the infrared temperature detector assembly is adjusted in height, the second gear is a straight gear and is arranged in parallel with the straight gear column, and relative sliding can be generated between the second straight gear and the straight gear column when the second straight gear and the straight gear column are stationary while meshing is guaranteed.
Specifically, the telescopic mounting member 29 further includes two telescopic limiting rods 296, one end of each limiting rod 296 is fixedly connected with the bottom of the sliding seat 28, and the other end of each limiting rod 296 is fixedly connected with the outer wall of the threaded sleeve 292.
From the above description, it is clear that: the setting through the gag lever post can guarantee that the screw sleeve only can slide and can not produce the rotation from top to bottom along the reciprocal lead screw of second to the gag lever post adopts telescopic structure then can adapt to screw sleeve's oscilaltion.
Specifically, the infrared temperature detector assembly 3 includes a mounting seat 31, a fixing shaft 32 connected with a threaded sleeve 292 is mounted on the top of the mounting seat 31, the fixing shaft 32 is connected with the threaded sleeve 292 through a flange, an infrared temperature detector 33 is mounted at one end of the mounting seat 31 close to an electrical element, and the infrared temperature detector 33 is electrically connected with a microprocessor.
From the above description, it is clear that: the flange is adopted to connect and fix the threaded sleeve and the fixed shaft, so that the installation and the fixation of the infrared temperature detector are facilitated.
Specifically, electric telescopic rods 34 are symmetrically and fixedly connected to two opposite side walls of the mounting seat 31, the electric telescopic rods 34 are electrically connected with the microprocessor, a heat shield 35 is fixedly connected to the telescopic ends of the electric telescopic rods 34, the heat shield 35 is slidably connected with the outer wall of the mounting seat 31, and one end of the heat shield 35, which is close to an electrical element, is in a flaring horn shape.
From the above description, it is clear that: after the infrared temperature detector detects the temperature of each electrical element in sequence, when a certain electrical element is found to be a heating source (the temperature is overheated), the infrared temperature detector stops moving and pushes the heat shield to slide towards the electrical element to cover the electrical element through the electric telescopic rod, so that the heat of the electrical element is prevented from being further radiated.
Specifically, the installation seat 31, the fixed shaft 32 and the second reciprocating screw 291 are hollow structures and are mutually communicated, one end, close to an electrical element, of the installation seat 31 is provided with a plurality of air extraction holes 36, the top of the cabinet body 1 is provided with an air extraction pump 4, the air extraction pump 4 is electrically connected with a microprocessor, the air inlet end of the air extraction pump 4 is communicated with a telescopic air extraction pipe 5, the air extraction pipe 5 is communicated with the second reciprocating screw 291, and the air extraction pipe 5 is a corrugated pipe.
From the above description, it is clear that: after the heat shield covers the electrical components, the air pump absorbs heat to the electrical components inside the heat shield through the air exhaust pipe, the second reciprocating screw rod, the threaded sleeve and the mounting seat, heat on the electrical components is absorbed, the heat is prevented from being too high, and the threaded connection between the threaded sleeve and the second reciprocating screw rod can ensure the tightness between the threaded sleeve and the second reciprocating screw rod.
Specifically, the exhaust pipe 5 is communicated with the second reciprocating screw 291 through a rotating flange 6.
From the above description, it is clear that: the tightness between the second reciprocating screw rod and the exhaust pipe can be ensured through the rotating flange, and the relative rotation between the second reciprocating screw rod and the exhaust pipe can be ensured.
Specifically, the exhaust pipe 5 is a telescopic bellows.
From the above description, it is clear that: when the inside temperature of switch board is overheated, can send the alarm through audible and visual siren, make maintainer in time discover.
The working process of the power distribution cabinet and overheat protection early warning device is as follows:
when the power distribution cabinet works and a certain electrical element in the power distribution cabinet breaks down to generate a large amount of heat, the heat in the cabinet body 1 is quickly increased, at the moment, when the infrared temperature detector 33 detects that the temperature in the cabinet body 1 is too high to reach a set limit value, the infrared temperature detector 33 transmits a temperature signal to the microprocessor, after the microprocessor receives the signal and analyzes the processed signal, the audible and visual alarm 7 and the driving motor 26 are respectively started, the audible and visual alarm 7 gives out an alarm, the driving motor 26 starts to rotate reversely, the first straight gear 27 and the first gear 244 and the second gear 254 can be mutually matched to respectively drive the second inner ratchet 252 and the first inner ratchet 242 to reversely rotate, and the first inner ratchet 242 and the first ratchet 243 are mutually matched, so that the reverse rotation of the first inner ratchet 242 can not drive the first rotating disc 241 and the straight gear column 22 to rotate, the second inner ratchet 252 can drive the second rotating disc 252 and the first reciprocating screw 23 through the second ratchet 253 to drive the sliding seat 28 to slide along the first reciprocating screw 23, and the second straight gear 295 can simultaneously drive the second ratchet 295 to slide along the first reciprocating screw 22, and the second straight gear 22 to keep the sliding seat 28 to be meshed with the sliding seat 28, and the sliding seat 2 is mutually meshed with the sliding seat 3, and the sliding seat 2 is mutually, and the sliding seat 3 is mutually contacted with the sliding seat 3, and the sliding seat 2 is mutually, and the sliding seat 3, and the sliding seat 2 is fixedly arranged on the sliding seat, and the sliding seat 2;
after the transverse position of the infrared temperature detector assembly 3 is adjusted, the microprocessor controls the driving motor 26 to start to rotate positively, the driving motor 26 rotates positively to drive the first inner ratchet 242 and the second inner ratchet 252 to rotate positively, wherein the second inner ratchet 252 rotates idly and does not drive the second rotating disc 251 and the first reciprocating screw rod 23 to rotate, the first inner ratchet 242 rotates positively and then drives the first rotating disc 241 and the spur gear column 22 to rotate, the spur gear column 22 drives the second spur gear 295 and the worm 294 to drive the worm wheel 293 and the second reciprocating screw rod 291 to rotate, the threaded sleeve 292 and the infrared temperature detector assembly 3 are driven to slide downwards under the limiting action of the telescopic limiting rod 296, namely, when the infrared temperature detector assembly 3 slides downwards, the infrared temperature detector 33 sequentially detects the temperature of the electrical components, after the infrared temperature detector assembly 3 slides to the lowest position, the driving motor 26 is controlled again to rotate reversely, the first reciprocating motor 23 is driven to rotate again, the infrared temperature detector assembly 3 is driven to rotate forwards and then the infrared temperature detector assembly 3 is driven to rotate forwards and the electrical components at different positions on the second reciprocating screw rod 291, and the temperature detector assembly is driven to rotate forwards and then the electrical components at different positions on the lowest positions of the infrared temperature detector assembly 3.
Meanwhile, when the infrared temperature detector 33 detects that the temperature inside the cabinet body 1 is too high for the first time, the air pump 4 is started, the air pump 4 pumps out hot air inside the cabinet body 1 through the air pump 5, the second reciprocating screw 291, the threaded sleeve 292, the fixed shaft 32, the mounting seat 31 and the air pump hole 36, so when the infrared temperature detector 33 detects the temperature of electric elements at different positions, the hot air at different positions inside the cabinet body 1 can be pumped out through the air pump 4, the heat dissipation effect is improved, and the heat dissipation assembly arranged on the power distribution cabinet can be started together to dissipate heat inside the cabinet body 1.
When the infrared temperature detector 33 detects that the surface of a certain electrical component is overheated, the microprocessor starts the electric telescopic rod 34, the telescopic end of the electric telescopic rod 34 pushes the heat shield 35 (made of aluminum, and the heat shield 35 is sealed with the outer wall of the mounting seat 31) to slide towards the electrical component and cover the heating electrical component, so that the heat of the heating electrical component cannot be further diffused in the cabinet body 1, and meanwhile, the heat emitted by the electrical component can be rapidly extracted through the air extraction hole 35 at the end part of the mounting seat 31, so that the electrical component is prevented from continuously overheating.
So, when the inside heat of switch board is overheated, can be with the infrared temperature probe 33 point to the electrical components who generates heat the trouble to the heat exchanger 35 separates this electrical components that generates heat, thereby the electrical components who judges the trouble that can be quick when maintainer will examine and repair the switch board maintenance, improves maintenance efficiency.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (10)
1. The utility model provides a high low voltage distribution cabinet's overheat protection early warning device, includes the cabinet body (1), its characterized in that: the intelligent cabinet temperature detection device is characterized in that a driving mechanism (2) is arranged at the top of the cabinet body (1), one end of the driving mechanism (2) penetrates through the top of the cabinet body (1) and is provided with an infrared temperature detector assembly (3) for detecting the internal temperature of the cabinet body (1), the infrared temperature detector assembly (3) faces towards an electrical element in the cabinet body (1), when the interior of the cabinet body (1) is overheated, the driving mechanism (2) drives the infrared temperature detector assembly (3) to sequentially detect the temperature of the electrical element in the cabinet body (1), a microprocessor which is respectively electrically connected with the driving mechanism (2) and the infrared temperature detector assembly (3) is arranged in the cabinet body (1), and an audible and visual alarm (7) which is electrically connected with the microprocessor is arranged at the top of the cabinet body (1);
the driving mechanism (2) comprises a shell (21) arranged at the top of the cabinet body (1), a spur gear column (22) and a first reciprocating screw rod (23) are rotatably connected between two opposite side walls of an inner cavity of the shell (21), a first ratchet wheel assembly (24) capable of directionally rotating is sleeved on the outer wall of one end of the spur gear column (22), a second ratchet wheel assembly (25) capable of directionally rotating is sleeved on the outer wall of one end of the first reciprocating screw rod (23), the second ratchet wheel assembly (25) and the first ratchet wheel assembly (24) are opposite in steering direction, a driving motor (26) capable of positively rotating is arranged on one side wall of one end of the shell (21), a first spur gear (27) is arranged at the output end of the driving motor (26), the first spur gear (27) is positioned between the first ratchet wheel assembly (24) and the second ratchet wheel assembly (25) and is meshed with the first ratchet wheel assembly (24) and the second ratchet wheel assembly (25) respectively, an internally hollow sliding seat (28) is connected to the outer wall of the first reciprocating screw rod (23) in a threaded manner, a temperature detector (29) is arranged in a penetrating manner, a through hole (29) is arranged on the inner cavity (22) and is arranged on the outer wall of the first reciprocating screw rod (23), a sliding groove (11) matched with the telescopic mounting piece (29) is formed in the top of the cabinet body (1);
when the driving motor (26) rotates positively, the driving motor (26) drives the first ratchet wheel assembly (24) and the spur gear column (22) to rotate and drives the telescopic mounting piece (29) to reciprocate and stretch, and when the driving motor (26) rotates reversely, the driving motor (26) drives the second ratchet wheel assembly (25) and the first reciprocating screw rod (23) to rotate and drives the sliding seat (28) to slide reciprocally.
2. The overheat protection early warning device of the high-low voltage power distribution cabinet according to claim 1, wherein: the first ratchet wheel assembly (24) comprises a first rotating disc (241) and a first inner ratchet wheel (242), the first rotating disc (241) is fixedly connected to the outer wall of the spur gear column (22), the first inner ratchet wheel (242) is sleeved on the outer wall of the first rotating disc (241), a first pawl (243) matched with the first inner ratchet wheel (242) is arranged on the outer wall of the first rotating disc (241), and first gear teeth (244) meshed with the first spur gear (27) are arranged on the outer wall of the first inner ratchet wheel (242);
the second ratchet wheel assembly (25) comprises a second rotating disc (251) and a second inner ratchet wheel (252), the second rotating disc (251) is fixedly connected to the outer wall of the first reciprocating screw rod (23), the second inner ratchet wheel (252) is sleeved on the outer wall of the second rotating disc (251), a second pawl (253) matched with the second inner ratchet wheel (252) is arranged on the outer wall of the second rotating disc (251), second gear teeth (254) meshed with the first straight gear (27) are arranged on the outer wall of the second inner ratchet wheel (252), and the inner ratchet teeth of the second inner ratchet wheel (252) and the inner ratchet teeth of the first inner ratchet wheel (242) face opposite to each other.
3. The overheat protection early warning device of the high-low voltage power distribution cabinet according to claim 2, wherein: the first inner ratchet wheel (242) and the second inner ratchet wheel (252) are rotatably connected with the side wall of the inner cavity of the shell (21) through rotating bearings.
4. The overheat protection early warning device of the high-low voltage power distribution cabinet according to claim 1, wherein: the telescopic mounting piece (29) comprises a second reciprocating screw rod (291), one end of the second reciprocating screw rod (291) is rotationally connected to the top of an inner cavity of the sliding seat (28), a threaded sleeve (292) is connected to the outer wall of the second reciprocating screw rod (291) in a threaded mode, an infrared temperature detector assembly (3) is mounted at the bottom of the threaded sleeve (292), a worm wheel (293) is fixedly connected to the outer wall of the second reciprocating screw rod (291), a worm (294) is connected to the outer wall of the worm wheel (293) in a meshed mode, the worm (294) is rotationally connected to two opposite side walls of the inner cavity of the sliding seat (28), a second spur gear (295) is fixedly connected to the outer wall of the worm (294), and the second spur gear (295) is meshed with the spur gear column (22) in a connected mode, and the second spur gear (295) is parallel to the spur gear column (22).
5. The overheat protection early warning device of the high-low voltage power distribution cabinet according to claim 4, wherein: the telescopic mounting piece (29) further comprises two telescopic limiting rods (296), one ends of the limiting rods (296) are fixedly connected with the bottom of the sliding seat (28), and the other ends of the limiting rods (296) are fixedly connected with the outer wall of the threaded sleeve (292).
6. The overheat protection early warning device of the high-low voltage power distribution cabinet according to claim 5, wherein: the infrared temperature detector assembly (3) comprises a mounting seat (31), a fixed shaft (32) connected with a threaded sleeve (292) is mounted at the top of the mounting seat (31), the fixed shaft (32) is connected with the threaded sleeve (292) through a flange, an infrared temperature detector (33) is mounted at one end, close to an electrical element, of the mounting seat (31), and the infrared temperature detector (33) is electrically connected with a microprocessor.
7. The overheat protection early warning device of the high-low voltage power distribution cabinet according to claim 6, wherein: the electric telescopic device is characterized in that electric telescopic rods (34) are symmetrically fixedly connected to two opposite side walls of the mounting seat (31), the electric telescopic rods (34) are electrically connected with the microprocessor, a heat shield (35) is fixedly connected to the telescopic ends of the electric telescopic rods (34), the heat shield (35) is slidably connected with the outer wall of the mounting seat (31), and one end, close to an electrical element, of the heat shield (35) is in a flaring horn shape.
8. The overheat protection early warning device of the high-low voltage power distribution cabinet according to claim 6, wherein: the utility model discloses a novel electric cabinet, including installation seat (31), fixed axle (32) and second reciprocating screw (291), installation seat (31) are inside hollow structure and intercommunication each other, a plurality of bleed hole (36) have been seted up near electrical components's one end to installation seat (31), aspiration pump (4) are installed at cabinet body (1) top, and aspiration pump (4) are connected with the microprocessor electricity, the inlet end intercommunication of aspiration pump (4) has telescopic exhaust tube (5), and exhaust tube (5) are linked together with second reciprocating screw (291).
9. The overheat protection early warning device of the high-low voltage power distribution cabinet according to claim 8, wherein: the exhaust pipe (5) is communicated with the second reciprocating screw rod (291) through a rotating flange (6).
10. The overheat protection early warning device of the high-low voltage power distribution cabinet according to claim 8, wherein: the exhaust pipe (5) is a telescopic corrugated pipe.
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| WO2023174033A1 (en) * | 2022-03-15 | 2023-09-21 | 中兴通讯股份有限公司 | Electrical tilt antenna driving device and electrical tilt antenna |
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|---|---|---|---|---|
| CN103560415A (en) * | 2013-10-22 | 2014-02-05 | 国家电网公司 | Rocker arm device for switching operation of transformer station |
| EP3440760A1 (en) * | 2016-04-06 | 2019-02-13 | QHI Group Limited | Fault monitoring systems and methods for detecting connectivity faults |
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|---|---|
| CN117498173A (en) | 2024-02-02 |
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Denomination of invention: A overheating protection warning device for high and low voltage distribution cabinets Granted publication date: 20240308 Pledgee: Xiamen Jimei Sub branch of Agricultural Bank of China Co.,Ltd. Pledgor: XIAMEN HAIYUE ELECTRIC EQUIPMENT CO.,LTD. Registration number: Y2024980021104 |