CN111162457A - Pre-alarm device for low-voltage power distribution cabinet - Google Patents
Pre-alarm device for low-voltage power distribution cabinet Download PDFInfo
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- CN111162457A CN111162457A CN202010035485.3A CN202010035485A CN111162457A CN 111162457 A CN111162457 A CN 111162457A CN 202010035485 A CN202010035485 A CN 202010035485A CN 111162457 A CN111162457 A CN 111162457A
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- protection mechanism
- distribution cabinet
- low
- voltage distribution
- warning device
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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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- 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
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/202—Cable lay-outs
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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
- H02B1/26—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)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a pre-alarming device of a low-voltage power distribution cabinet, which comprises a protection mechanism, an electronic mechanism for detection and alarming, an air power mechanism for improving the temperature and humidity detected by the electronic mechanism, a fixing mechanism and a connecting mechanism for connecting the device and the power distribution cabinet, wherein the protection mechanism is internally connected with the electronic mechanism, the upper end and the lower end of the protection mechanism are connected with the air power mechanism, and the electronic mechanism is connected with a circuit of the power distribution cabinet through a wiring mechanism. The device can be quickly installed inside the power distribution cabinet by using the fixing mechanism, the installation and later-period maintenance efficiency is improved, various lines are connected by using the matching of the wiring mechanism and the electronic mechanism, the current can be buffered by using the characteristics of the wiring mechanism, the electronic mechanism is prevented from being broken down by high current, the monitoring efficiency is prevented from being influenced, the sealing cover and the fixing seat are connected by using the connecting mechanism, screws are not needed, and the installation and later-period maintenance are convenient.
Description
Technical Field
The invention relates to the safety field of low-voltage power distribution cabinets, in particular to a pre-alarming device of a low-voltage power distribution cabinet.
Background
The rated current of the low-voltage power distribution cabinet is 50Hz, and the power distribution system with the rated voltage of 380v is used for power, illumination and power conversion and control of power distribution. The product has the characteristics of strong breaking capacity, good dynamic and thermal stability, flexible electric scheme, convenient combination, strong seriousness and practicability, novel structure and the like.
In the use of low-voltage distribution cabinet, because various factors such as subjective and objective can all cause the circuit of switch board inside to break down, general switch board all takes safeguard measure certainly, but its itself can only carry out self-power-off or shut down, when the control part goes wrong, or when producing the electric leakage, the safeguard measure who plays itself can not be implemented, if not handle in time, then can cause major accident.
Disclosure of Invention
The invention aims to provide a low-voltage distribution cabinet pre-alarming device for solving the problems.
The invention realizes the purpose through the following technical scheme:
low-voltage distribution cabinet warning device in advance, including protection mechanism, still including the electronic mechanism that is used for detecting and reporting to the police and be used for improving the electronic mechanism and detect the aerodynamic mechanism of humiture and be used for fixing mechanism and the coupling mechanism of coupling device and switch board, protection mechanism internal connection the electronic mechanism, the protection mechanism is last the lower extreme is connected aerodynamic mechanism, connect through wiring mechanism between electronic mechanism and the switch board circuit, protection mechanism and switch board inboard are passed through fixing mechanism connects, protection mechanism is inside to be passed through coupling mechanism connects.
Preferably: coupling mechanism includes connecting seat, spliced pole, arc picture peg, arc cooperation piece, the connecting seat the spliced pole is connected protection mechanism, the connecting seat is connected sealed lid, the spliced pole passes through threaded connection the fixing base, connect on the connecting seat arc cooperation piece, connect on the spliced pole the arc picture peg, the arc picture peg with arc cooperation piece joint.
So set up, when needs connect sealed lid with during the fixing base, will the arc picture peg is aimed at arc cooperation piece will the arc picture peg injects inside back of arc cooperation piece can guarantee sealed lid with the connection effect of fixing base.
Preferably: the connecting mechanism comprises a connecting seat, a connecting column, a jacking round head and a spring, the connecting seat is connected with the connecting column, the connecting column is connected with a protection mechanism, the connecting column is connected with the jacking round head in a sliding mode, the jacking round head is arranged between the jacking round heads, the spring is arranged between the jacking round heads, the jacking round heads are formed into limiting grooves between the connecting columns, and the jacking round heads are matched with the connecting seat through round head matching blocks.
So set up, when needs connect sealed lid with during the fixing base, will the spliced pole injects the connecting seat is inboard, the cooperation of tight button head in top the cooperation of button head cooperation piece utilizes simultaneously the elastic potential energy of spring makes the connecting seat with spliced pole zonulae occludens.
Preferably: the protection mechanism comprises a sealing cover and a fixed seat, and the inner side of the sealing cover is connected with the fixed seat.
So set up, the sealed lid plays sealed effect, the fixing base plays fixed action.
Preferably: the air power mechanism comprises an upper end fan, a lower end fan, a fan matching groove and an air outlet hole, wherein the upper end fan and the lower end fan are connected with the protection mechanism 12, the fan matching groove is formed at the upper end and the lower end of the fixing seat of the protection mechanism, and the air outlet hole is formed at the front end of the sealing cover of the protection mechanism.
So set up, the upper end fan with the lower extreme fan is taken out the air inside the sealed lid to utilize temperature and humidity sensor detects, when temperature and humidity are unusual, in time utilizes the network communicator carries out early warning and warning.
Preferably: the wiring mechanism comprises a line connector, a line connecting groove, a matching groove and a junction box, the line connector is connected with the fixing seat of the protection mechanism, the line connecting groove is formed in the line connector, the line connector and the sealing cover of the protection mechanism are provided with the matching groove, the junction box is connected inside the fixing seat of the protection mechanism, the junction box is connected with the single chip microcomputer of the electronic mechanism through a connecting wire, and the electric leakage wire is connected with the magnet of the fixing mechanism.
So set up, through the circuit connection inside circuit connection of circuit joint and switch board to whether detect the switch board inside and take place the phenomenon of short circuit and open circuit, utilize simultaneously the electric leakage wire hugs closely the switch board cabinet body, detects whether to take place electric leakage phenomenon, simultaneously the inside electric capacity that is provided with of terminal box avoids taking place the heavy current and directly punctures the singlechip.
Preferably: fixing mechanism includes magnet, sucking disc, magnet perforation, magnet is connected protection mechanism rear end, the sucking disc sets up the magnet downside, the shaping has on the magnet perforation.
So set up, magnet with the sucking disc cooperation can be quick effectual will the fixing base is installed in the switch board inboard, guarantees installation stability simultaneously.
Preferably: the electronic mechanism comprises a display screen, a display screen joint, a network communicator and a single chip microcomputer, wherein the display screen is connected with the front end of the sealing cover of the protection mechanism, the single chip microcomputer is connected with the protection mechanism and is arranged on the inner side of the fixing seat, the display screen is connected with the single chip microcomputer through the display screen joint, one end of the single chip microcomputer is provided with the network communicator, and the other end of the single chip microcomputer is provided with a temperature and humidity sensor.
So set up, the singlechip plays detection circuitry effect, the network communicator plays and plays the warning effect with external communication, through wiring mechanism's buffering, avoids direct high current to puncture the singlechip.
Preferably: the sucker is connected with the fixed seat of the protection mechanism through a screw, and the magnet is connected with the fixed seat of the protection mechanism through an adhesive.
So set up, utilize screw and sticky, guaranteed joint strength.
Preferably: the display screen is embedded in the sealing cover of the protection mechanism, and the display screen joint is connected with the sealing cover of the protection mechanism through a screw.
So set up, the display screen plays the information display effect, and it is good to inlay connection stability.
Compared with the prior art, the invention has the following beneficial effects:
1. the device can be quickly installed inside the power distribution cabinet by using the fixing mechanism, so that the installation efficiency and the later-period maintenance efficiency are improved;
2. the wiring mechanism is matched with the electronic mechanism, various circuits are connected at the same time, and the characteristic of the wiring mechanism can be utilized to buffer current, so that high current is prevented from puncturing the electronic mechanism, and monitoring efficiency is prevented from being influenced;
3. utilize coupling mechanism to connect sealed lid and fixing base, need not to use the screw, easy to assemble and later maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a first structure of a pre-alarm device of a low-voltage distribution cabinet according to the invention;
fig. 2 is a schematic diagram of a second structure of the pre-alarm device of the low-voltage distribution cabinet of the invention;
FIG. 3 is a schematic view of the structure of an air outlet of the pre-alarm device of the low-voltage distribution cabinet of the invention;
FIG. 4 is a schematic view of the internal structure of a sealing cover of the pre-alarm device of the low-voltage distribution cabinet of the invention;
fig. 5 is a schematic view of the internal structure of a fixing seat of the pre-alarm device of the low-voltage distribution cabinet of the invention;
fig. 6 is a schematic diagram of the structure of a leakage conductor of the pre-alarm device of the low-voltage distribution cabinet of the invention;
FIG. 7 is a schematic view of an arc-shaped plugboard structure of the pre-alarm device of the low-voltage distribution cabinet of the invention;
FIG. 8 is a schematic diagram of a circuit connection structure of the pre-alarm device of the low-voltage power distribution cabinet of the invention;
fig. 9 is a schematic diagram of a structure of a jacking round head of the pre-alarming device of the low-voltage distribution cabinet.
The reference numerals are explained below:
1. a protection mechanism; 2. an air power mechanism; 3. a wiring mechanism; 4. a fixing mechanism; 5. an electronic mechanism; 6. a connecting mechanism; 11. a sealing cover; 12. a fixed seat; 21. an upper end fan; 22. a lower end fan; 23. a fan mating slot; 24. an air outlet; 31. a line connector; 32. a line connecting groove; 33. a mating groove; 34. a junction box; 35. connecting a lead; 36. a leakage current lead; 41. a magnet; 42. a suction cup; 43. punching a magnet hole; 51. a display screen; 52. a display screen joint; 53. a network communicator; 54. a single chip microcomputer; 55. a temperature and humidity sensor; 61. a connecting seat; 62. connecting columns; 63. an arc-shaped inserting plate; 64. an arc-shaped matching block; 611. tightly propping the round head; 612. a spring; 613. a limiting groove; 614. a round-head mating block.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be further described with reference to the accompanying drawings in which:
low-voltage distribution cabinet warning device in advance, including protection mechanism 1, still including the electronic mechanism 5 that is used for detecting and reporting to the police and be used for improving electronic mechanism 5 and detect the aerodynamic mechanism 2 of humiture and be used for fixing mechanism 4 and the coupling mechanism 6 of connecting device and switch board, 1 internal connection electronic mechanism 5 of protection mechanism, aerodynamic mechanism 2 is connected to protection mechanism 1 upper and lower end, connect through wiring mechanism 3 between electronic mechanism 5 and the switch board circuit, protection mechanism 1 and switch board inboard are connected through fixing mechanism 4, 1 inside coupling mechanism 6 that passes through of protection mechanism connects. The type of the single chip microcomputer 54 is 80C52, the single chip microcomputer 54 is in line signal transmission with the display screen 51, the network communicator 53 and the temperature and humidity sensor 55 through wires, the display screen 51 is connected with pins P10 and P11, the network communicator 53 is connected with pins P14 and P15, the temperature and humidity sensor 55 is connected with pins P16 and P17, and the junction box 34 is connected with pins P00 and P07.
Example 1
As shown in fig. 1 to 8, the connecting mechanism 6 includes a connecting seat 61, a connecting column 62, an arc-shaped inserting plate 63, and an arc-shaped matching block 64, the connecting seat 61 and the connecting column 62 are connected with the protection mechanism 1, the connecting seat 61 is connected with the sealing cover 11, the connecting column 62 is connected with the fixing base 12 through a thread, the connecting seat 61 is connected with the arc-shaped matching block 64, the connecting column 62 is connected with the arc-shaped inserting plate 63, the arc-shaped inserting plate 63 is connected with the arc-shaped matching block 64 in a clamping manner, when the sealing cover 11 and the fixing base 12 need to be connected, the arc-shaped inserting plate 63 is aligned with the arc-shaped matching block 64, and the arc; the protection mechanism 1 comprises a sealing cover 11 and a fixed seat 12, wherein the inner side of the sealing cover 11 is connected with the fixed seat 12, the sealing cover 11 plays a role in sealing, and the fixed seat 12 plays a role in fixing; the air power mechanism 2 comprises an upper end fan 21, a lower end fan 22, a fan matching groove 23 and an air outlet hole 24, wherein the upper end fan 21 and the lower end fan 22 are connected with the upper end 12 of the protection mechanism 1, the fan matching groove 23 is formed at the upper end and the lower end of the fixing seat 12 of the protection mechanism 1, the air outlet hole 24 is formed at the front end of the sealing cover 11 of the protection mechanism 1, the upper end fan 21 and the lower end fan 22 draw air into the sealing cover 11, so that the temperature and humidity sensor 55 is used for detecting, and when the temperature and the humidity are abnormal, the network communicator 53 is used for early warning and alarming; the wiring mechanism 3 comprises a line connector 31, a line connecting groove 32, a matching groove 33 and a junction box 34, the line connector 31 is connected with a fixed seat 12 of the protection mechanism 1, the line connecting groove 32 is formed in the line connector 31, the matching groove 33 is formed between the line connector 31 and a sealing cover 11 of the protection mechanism 1, the junction box 34 is connected inside the fixed seat 12 of the protection mechanism 1, the junction box 34 is connected with a single chip microcomputer 54 of the electronic mechanism 5 through a connecting wire 35, an electric leakage wire 36 is connected with a magnet 41 of the fixing mechanism 4 and is connected with a circuit inside the power distribution cabinet through the line connector 31, so that whether short circuit and open circuit occur inside the power distribution cabinet is detected, meanwhile, the electric leakage wire 36 is tightly attached to the cabinet body of the power distribution cabinet to detect whether electric leakage occurs, meanwhile, a; the fixing mechanism 4 comprises a magnet 41, a sucker 42 and a magnet through hole 43, the magnet 41 is connected to the rear end of the protection mechanism 1, the sucker 42 is arranged on the lower side of the magnet 41, the magnet through hole 43 is formed in the magnet 41, and the magnet 41 is matched with the sucker 42, so that the fixing seat 12 can be quickly and effectively installed on the inner side of the power distribution cabinet, and the installation stability is ensured; the electronic mechanism 5 comprises a display screen 51, a display screen connector 52, a network communicator 53 and a single chip microcomputer 54, wherein the display screen 51 is connected to the front end of a sealing cover 11 of the protection mechanism 1, the single chip microcomputer 54 is connected to the inner side of a fixing seat 12 of the protection mechanism 1, the display screen 51 is connected with the single chip microcomputer 54 through the display screen connector 52, the network communicator 53 is arranged at one end of the single chip microcomputer 54, the temperature and humidity sensor 55 is arranged at the other end of the single chip microcomputer 54, the single chip microcomputer 54 plays a role of a detection circuit, the network communicator 53 plays a role of alarming in communication with the outside, and the single chip microcomputer 54; the sucker 42 is connected with the fixed seat 12 of the protection mechanism 1 through a screw, the magnet 41 is connected with the fixed seat 12 of the protection mechanism 1 through glue, and the connection strength is ensured by the screw and the glue; the display screen 51 is inlaid in the sealing cover 11 of the protection mechanism 1, the display screen joint 52 is connected with the sealing cover 11 of the protection mechanism 1 through screws, the display screen 51 plays a role in displaying information, and the inlaying connection stability is good.
The working principle is as follows: connect fixing base 12 in the switch board inboard through magnet 41 and sucking disc 42, the electric leakage condition is monitored to 36 contact switch board inner walls of this time electric leakage wire, draw forth the wire with the switch board inboard again and connect terminal box 34 through line connection 31, when sealed lid 11 and fixing base 12 are connected to needs, with arc picture peg 63 alignment arc cooperation piece 64, inject arc picture peg 63 behind arc cooperation piece 64 is inside, can guarantee the connection effect of sealed lid 11 and fixing base 12, when detecting, when the inside electric leakage that takes place of switch board, the short circuit, during the broken circuit condition, can both pass through terminal box 34 with signal of telecommunication transmission to singlechip 54, then singlechip 54 sends alarm signal to the user through network communicator 53.
Example 2
As shown in fig. 9, the present embodiment is different from embodiment 1 in that: coupling mechanism 6 includes connecting seat 61, spliced pole 62, the tight button head 611 in top, spring 612, connecting seat 61, connecting pole 62 connection protection mechanism 1, sliding connection has the tight button head 611 in top on the spliced pole 62, be provided with spring 612 between two tight button heads 611 in top, the shaping has spacing groove 613 between tight button head 611 in top and the spliced pole 62, the cooperation through button head cooperation piece 614 before tight button head 611 in top and the connecting seat 61, when needs connect sealed lid 11 and fixing base 12, it is inboard with connecting pole 62 interpolation connecting seat 61, the tight button head 611 in top cooperates button head cooperation piece 614, utilize the elastic potential energy of spring 612 simultaneously, make connecting seat 61 and spliced pole 62 zonulae occludens.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (10)
1. Low-voltage distribution cabinet early warning device, including protection mechanism (1), its characterized in that: still including electronic mechanism (5) that are used for detecting and warning and be used for improving electronic mechanism (5) detection humiture aerodynamic mechanism (2) and be used for fixed establishment (4) and coupling mechanism (6) of connecting device and switch board, protection mechanism (1) internal connection electronic mechanism (5), protection mechanism (1) is last lower extreme is connected aerodynamic mechanism (2), connect through wiring mechanism (3) between electronic mechanism (5) and the switch board circuit, protection mechanism (1) and switch board inboard are passed through fixed establishment (4) are connected, protection mechanism (1) is inside to be passed through coupling mechanism (6) are connected.
2. The low-voltage distribution cabinet pre-warning device according to claim 1, characterized in that: coupling mechanism (6) are including connecting seat (61), spliced pole (62), arc picture peg (63), arc cooperation piece (64), connecting seat (61) spliced pole (62) are connected protection mechanism (1), connect on connecting seat (61) arc cooperation piece (64), connect on spliced pole (62) arc picture peg (63), arc picture peg (63) with arc cooperation piece (64) joint.
3. The low-voltage distribution cabinet pre-warning device according to claim 1, characterized in that: coupling mechanism (6) are including connecting seat (61), spliced pole (62), tight button head in top (611), spring (612), connecting seat (61) spliced pole (62) are connected protection mechanism (1), be connected with on spliced pole (62) the tight button head in top (611), two be provided with between the tight button head in top (611) spring (612), tight button head in top (611) with the shaping has spacing groove (613) between spliced pole (62), the tight button head in top (611) with connecting seat (61) is preceding to cooperate through button head cooperation piece (614).
4. The low-voltage distribution cabinet pre-warning device according to claim 1, characterized in that: the protection mechanism (1) comprises a sealing cover (11) and a fixed seat (12), wherein the inner side of the sealing cover (11) is connected with the fixed seat (12).
5. The low-voltage distribution cabinet pre-warning device according to claim 1, characterized in that: the air power mechanism (2) comprises an upper end fan (21), a lower end fan (22), a fan matching groove (23) and an air outlet hole (24), the upper end fan (21) and the lower end fan (22) are connected with the protection mechanism (1), the fan matching groove (23) is formed in the upper end and the lower end of the protection mechanism (1), and the air outlet hole (24) is formed in the front end of the protection mechanism (1).
6. The low-voltage distribution cabinet pre-warning device according to claim 1, characterized in that: wiring mechanism (3) connect groove (32), cooperation groove (33), terminal box (34) including circuit (31), circuit connects (31) to be connected protection mechanism (1), circuit connect groove (32) shaping in circuit connects (31), circuit connect (31) with be provided with between protection mechanism (1) cooperation groove (33), terminal box (34) are connected inside protection mechanism (1), terminal box (34) are connected through connecting wire (35) electronic mechanism (5), and electric leakage wire (36) are connected fixed establishment (4).
7. The low-voltage distribution cabinet pre-warning device according to claim 1, characterized in that: fixed establishment (4) include magnet (41), sucking disc (42), magnet perforation (43), magnet (41) are connected protection mechanism (1) rear end, sucking disc (42) set up magnet (41) downside, the shaping has on magnet (41) magnet perforation (43).
8. The low-voltage distribution cabinet pre-warning device according to claim 1, characterized in that: electronic mechanism (5) are including display screen (51), display screen joint (52), network communication ware (53), singlechip (54), display screen (51) are connected protection mechanism (1) front end, singlechip (54) are connected protection mechanism (1) are inboard, display screen (51) are passed through display screen joint (52) are connected singlechip (54), singlechip (54) one end is provided with network communication ware (53), singlechip (54) other end is provided with temperature and humidity sensor (55).
9. The low-voltage distribution cabinet pre-warning device according to claim 7, characterized in that: the sucker (42) is connected with the protection mechanism (1) through a screw, and the magnet (41) is connected with the protection mechanism (1) through gluing.
10. The low-voltage distribution cabinet pre-warning device according to claim 8, characterized in that: the display screen (51) is embedded in the protection mechanism (1), and the display screen joint (52) is connected with the protection mechanism (1) through a screw.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010035485.3A CN111162457B (en) | 2020-01-14 | 2020-01-14 | Pre-alarm device for low-voltage power distribution cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010035485.3A CN111162457B (en) | 2020-01-14 | 2020-01-14 | Pre-alarm device for low-voltage power distribution cabinet |
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| CN111162457A true CN111162457A (en) | 2020-05-15 |
| CN111162457B CN111162457B (en) | 2021-10-29 |
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| CN202010035485.3A Active CN111162457B (en) | 2020-01-14 | 2020-01-14 | Pre-alarm device for low-voltage power distribution cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541060A (en) * | 2020-05-22 | 2020-08-14 | 钟廷凯 | Anti-creeping device |
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| EP0386768A2 (en) * | 1989-03-10 | 1990-09-12 | Mitsubishi Denki Kabushiki Kaisha | Circuit device having circuit breaking and leakage current detecting functions |
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| CN111541060A (en) * | 2020-05-22 | 2020-08-14 | 钟廷凯 | Anti-creeping device |
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| CN111162457B (en) | 2021-10-29 |
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Effective date of registration: 20220513 Address after: 404100 No. 19, Jinshan Avenue, Dongcheng sub district office, Tongliang District, Chongqing Patentee after: CHONGQING CHONGBIAN ELECTRIC APPLIANCES Co.,Ltd. Address before: 413500 No. 1417, building 1, Wancheng international, Jinshan South Road, high tech Zone, Yiyang City, Hunan Province Patentee before: YIYANG LINGZHI ENGINEERING TECHNOLOGY Co.,Ltd. |