CN117392800A - Electrical fire monitoring detector for line protection - Google Patents
Electrical fire monitoring detector for line protection Download PDFInfo
- Publication number
- CN117392800A CN117392800A CN202311331335.7A CN202311331335A CN117392800A CN 117392800 A CN117392800 A CN 117392800A CN 202311331335 A CN202311331335 A CN 202311331335A CN 117392800 A CN117392800 A CN 117392800A
- Authority
- CN
- China
- Prior art keywords
- insulating shell
- conductive wire
- active layer
- fire monitoring
- line protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 238000010008 shearing Methods 0.000 claims abstract description 53
- 238000001514 detection method Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 6
- 238000005192 partition Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
- G01K5/56—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid
- G01K5/62—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention discloses an electric fire monitoring detector for line protection, which comprises an insulating shell and a temperature sensing component arranged in the insulating shell, wherein a partition plate and a circuit board are arranged on the inner wall of the insulating shell, a cover plate for sealing the insulating shell is arranged at the bottom of the insulating shell, a charging port and a storage battery are arranged on the cover plate, connecting ends are embedded into the two sides of the insulating shell, the temperature sensing component comprises a connecting frame, a conductive wire, a passive layer, an active layer and a locking frame, and a bimetallic strip consisting of the passive layer and the active layer is arranged in the middle of the connecting frame on the inner wall of the insulating shell. The shearing piece stretches up and down at the top of the insulating shell along the bending direction of the bimetallic strip, the deformation degree of the passive layer and the active layer, the current in the conductive wire and the temperature of the conductive wire are in direct proportion, the shearing piece is matched to shear the conductive wire after the deformation of the passive layer and the active layer reaches a specific degree, and the shearing piece can stretch up and down to adjust the temperature when the conductive wire is cut off, so that the temperature of the power failure can be accurately adjusted.
Description
Technical Field
The invention relates to the technical field of line protection, in particular to an electric fire monitoring detector for line protection.
Background
The electric wire can generate heat after the circular telegram, and the electric wire can often be because short circuit, and the load that leads to the electric wire suddenly becomes very little, leads to the electric wire temperature to rise sharply with the insulating layer on electric wire surface burn out and arouse the conflagration, and the circuit prevents that the electric wire from short circuit and arousing the conflagration through monitor detector real time monitoring electric current.
The electrical fire monitoring detector in the prior art generally monitors in two ways, firstly detects the occurrence of smoke, gives an alarm after detecting the smoke, secondly directly monitors the current of a circuit, automatically cuts off the current in the circuit when the current is overlarge, plays a role in fire monitoring, and the mode of detecting the smoke always has false alarm, but the mode of current detection cannot accurately sense temperature, so that the time of cutting off the circuit is inaccurate, and the fire monitoring is inaccurate, so that the electrical fire monitoring detector for circuit protection needs to be provided, wherein the circuit protection uses the accurate sensing temperature through the heated bending of the bimetallic strip to overcome the defects.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a smoke detection mode often has false alarm, and a current detection mode cannot accurately sense temperature, so that the circuit breaking time is inaccurate and the fire monitoring is inaccurate, thereby providing an electric fire monitoring detector for line protection.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides an electric fire monitoring detector for line protection, includes insulating shell and the temperature sensing subassembly that sets up inside thereof, and the inner wall of insulating shell is provided with division board and circuit board, and the bottom of insulating shell is provided with the apron that seals it, is provided with charge mouth and battery on the apron, and the both sides of insulating shell are all embedded to be provided with the link, the temperature sensing subassembly includes linking frame, electric wire, passive layer, active layer and locking frame, and the inner wall of insulating shell is provided with the linking frame, and the centre of linking frame is provided with the bimetallic strip that passive layer and active layer rivet and constitute, and the other pot head of bimetallic strip is equipped with the locking frame, and the centre of passive layer and active layer presss from both sides the electric wire of circular telegram; and a shearing part is arranged at the top of the insulating shell and matched with the heated bent bimetallic strip to form a shearing force for shearing the conducting wire between the passive layer and the active layer.
Preferably, the conductive wire passes through a notch formed in the middle of the cutting member, and when the bimetal is bent downwards by heating, the conductive wire is pressed on the cutting member and cut off.
Preferably, the top of the notch of the shearing piece is provided with an extrusion component for pushing the shearing piece to open, a groove is formed below the notch on the shearing piece, and the groove is matched with the conductive wire.
Preferably, the extrusion assembly comprises a rotating disc, a thread cylinder and a thread column, wherein two thread cylinders are movably inserted into the side wall of the top of the notch, the thread columns are embedded into the thread cylinders in a threaded manner, and one ends of the two thread columns are fixed with the rotating disc.
Preferably, the end part of the threaded cylinder is integrally formed with an inserting block, the end part of the inserting block is integrally formed with a convex block, and the inner wall of the other end of the threaded cylinder is provided with an internal thread.
Preferably, the surface of the thread column is provided with external threads matched with the internal threads on the inner wall of the thread cylinder, and the external threads on the surfaces of the two thread columns on the side surface of the rotating disc are opposite in screw direction.
Preferably, the plugging block is any one of a quadrangular prism, a pentagonal prism and a hexagonal prism, the shape of the plugging block is matched with a butt joint hole formed in the shearing piece, and the convex block is in a curved surface shape and is abutted against the shearing piece.
Preferably, the top of the passive layer and the bottom of the active layer are provided with mounting grooves, so that a circular channel is formed between the passive layer and the active layer, and the conductive wire is matched with the channel.
Preferably, the shearing piece is matched with the bent arc of the bimetallic strip in an arc shape and is not contacted with the bent arc of the bimetallic strip, and the top of the insulating shell is provided with a bolt opening for inserting the shearing piece.
Preferably, the separation plate is located above the circuit board, the conductive wire, the charging port and the storage battery are electrically connected with the circuit board through wires, and the circuit board is provided with a buzzer, a current detection module, a central processing module and other electronic components matched with the buzzer, the current detection module and the central processing module.
The beneficial effects of the invention are as follows:
1. the passive layer and the active layer clamp the conductive wire, the conductive wire and the circuit which is connected in series in the circuit to be protected, when the circuit is short-circuited, the current rapid temperature of the conductive wire is also rapidly increased, the conductive wire simultaneously heats the passive layer and the active layer, so that the passive layer and the active layer are downwards bent, the conductive wire is pressed into the groove, the passive layer and the active layer break the conductive wire on the shearing piece, and the current of the circuit is automatically disconnected, thereby achieving the purpose of monitoring fire disaster;
2. the shearing piece stretches out and draws back from top to bottom at the top of insulating shell along the crooked direction of bimetallic strip, and the adjustment conductive wire is cut off by bimetallic strip's position, and the deformation degree of passive layer and initiative layer, the electric current size in the conductive wire and the temperature of conductive wire all are the proportional, make the conductive wire cut off the opportunity and need the opportunity of outage unanimous, make the deformation of passive layer and initiative layer cooperate shearing piece to cut off the conductive wire after reaching specific degree, and the shearing piece can stretch out and draw back from top to bottom and then adjust the temperature when the conductive wire is cut off, the temperature of adjustment outage that can be accurate has that outage temperature is adjustable, fire monitoring is accurate advantage.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the overall use of the present invention;
FIG. 3 is a schematic view of the structure of the insulating housing of the present invention;
FIG. 4 is a schematic structural diagram of a temperature sensing assembly according to the present invention;
FIG. 5 is a schematic diagram illustrating the disassembly of the temperature sensing assembly of the present invention;
FIG. 6 is a schematic view of the structure of the shear member of the present invention;
FIG. 7 is a schematic view showing the extrusion assembly of the present invention disassembled.
In the figure: the battery pack comprises an insulating shell 1, a partition plate 2, a circuit board 3, a cover plate 4, a charging port 5, a storage battery 6, a connecting end 7, a cutting member 8, a connecting frame 9, a conductive wire 10, a passive layer 11, an active layer 12, a locking frame 13, a mounting groove 14, a notch 15, a groove 16, a rotating disc 17, a threaded cylinder 18, a plug-in block 19, a lug 20, an internal thread 21, a threaded column 22 and an external thread 23.
Description of the embodiments
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.
Referring to fig. 1-7, an electric fire monitoring detector for line protection comprises an insulating shell 1 and a temperature sensing component arranged in the insulating shell, wherein a partition plate 2 and a circuit board 3 are arranged on the inner wall of the insulating shell 1, a cover plate 4 for sealing the insulating shell 1 is arranged at the bottom of the insulating shell, a charging port 5 and a storage battery 6 are arranged on the cover plate 4, connecting ends 7 are embedded into two sides of the insulating shell 1, the temperature sensing component comprises a connecting frame 9, a conducting wire 10, a passive layer 11, an active layer 12 and a locking frame 13, the connecting frame 9 is arranged on the inner wall of the insulating shell 1, a bimetallic strip formed by riveting the passive layer 11 and the active layer 12 is arranged in the middle of the connecting frame 9, the locking frame 13 is sleeved at the other end of the bimetallic strip, and the conducting wire 10 for electrifying is clamped between the passive layer 11 and the active layer 12; the top of the insulating shell 1 is provided with a shearing member 8, and the shearing member 8 cooperates with a bimetal sheet bent by heating to form a shearing force for shearing the conductive wire 10 between the passive layer 11 and the active layer 12.
Preferably, the conductive wire 10 passes through a notch 15 formed in the middle of the cutting member 8, when the bimetallic strip is heated to bend downwards, the conductive wire 10 is pressed on the cutting member 8 and cut off, an extrusion assembly for pushing the notch 15 of the cutting member 8 to open is arranged at the top of the notch 15, a groove 16 is formed below the notch 15 on the cutting member 8, and the groove 16 is matched with the conductive wire 11;
in specific implementation, the passive layer 11 and the active layer 12 clamp the conductive wire 10, the conductive wire 10 and the circuit connected in series to be protected are connected in series, when the circuit is short-circuited, the current rapid-rise temperature of the conductive wire 10 is also rapidly increased, the conductive wire 10 simultaneously heats the passive layer 11 and the active layer 12 to enable the passive layer 11 and the active layer 12 to be bent downwards, the conductive wire 10 is pressed into the groove 16, the passive layer 11 and the active layer 12 break the conductive wire 10 on a shearing piece, and the current of the circuit is automatically disconnected as shown in the attached drawing 2 of the specification, so that the purpose of monitoring fire is achieved.
Preferably, the extrusion assembly comprises a rotating disc 17, a thread cylinder 18 and a thread column 22, wherein two thread cylinders 18 are movably inserted into the side wall at the top of the notch 15, the thread columns 22 are respectively embedded into the thread cylinders 18, one ends of the two thread columns 22 are fixedly provided with the rotating disc 17, the end parts of the thread cylinders 18 are integrally formed with plug blocks 19, the end parts of the plug blocks 19 are integrally formed with lugs 20, and the inner wall at the other ends of the thread cylinders 18 is provided with internal threads 21;
in specific implementation, the rotating disc 17 rotates to enable the two threaded columns 22 to respectively move in the middle of the two threaded cylinders 18, push the two threaded cylinders 18 to be away from each other, enable the threaded cylinders 18 to prop against the notch 15 of the shearing piece 8, enable the top of the shearing piece 8 to prop open, enable the shearing piece 8 to prop against the insulating shell 1, enable the shearing piece 8 to be fixed in a bolt hole of the insulating shell 1, and enable the position of the shearing piece 8 to be adjusted very rapidly.
Preferably, the surface of the screw thread column 22 is provided with external threads 23 matched with the internal threads 21 on the inner wall of the screw thread cylinder 18, and the external threads 23 on the surfaces of the two screw thread columns 22 on the side surface of the rotating disc 17 are opposite in screw direction, so that the moving directions of the two screw thread cylinders 18 on the two screw thread columns 22 are opposite, and the two screw thread cylinders 18 can be quickly mutually close to and mutually far away from each other.
Preferably, the plugging block 19 is any one of a quadrangular prism, a pentagonal prism and a hexagonal prism, the shape of the plugging block 19 is matched with a butt joint hole formed in the shearing piece 8, the convex block 20 is propped against the shearing piece 8 in a curved surface shape, the shape of the plugging block 19 is matched with a hole on the side wall of the shearing piece 8, the shape of the plugging block 19 can avoid synchronous rotation of the threaded cylinder 18 and the threaded cylinder 22, the threaded cylinder 18 can move on the threaded cylinder 22, and the shape of the convex block 20 can enable the plugging block 19 to be slightly inclined in a divergent manner.
Preferably, the top of the passive layer 11 and the bottom of the active layer 12 are both provided with the placement grooves 14, so that a circular channel is formed between the passive layer 11 and the active layer 12, the conductive wire 10 is matched with the channel, the thermal expansion coefficient of the passive layer 11 is smaller than that of the active layer 12, when the passive layer 11 and the active layer 12 are heated synchronously, the right sides of the passive layer 11 and the active layer 12 bend downwards, and the passive layer 11 and the active layer 12 can break the conductive wire 10 on the shear member 8.
Preferably, the shearing member 8 is arc-shaped and is matched with the bending arc of the bimetallic strip and is not in contact with the bimetallic strip, a bolt opening is formed in the top of the insulating shell 1 for inserting the shearing member 8, the shearing member 8 is shaped to be inserted into the insulating shell 1 to move along a certain radian, the groove 16 of the shearing member 8 is matched with the bending track of the passive layer 11 and the active layer 12, and the conductive wire 10 can be cut off well when the passive layer 11 and the active layer 12 are bent.
Preferably, the separation plate 2 is positioned above the circuit board 3, the conductive wire 10, the charging port 5 and the storage battery 6 are electrically connected with the circuit board 3 through wires, and the circuit board 3 is provided with a buzzer, a current detection module, a central processing module and other suitable electronic components;
in specific implementation, the circuit board 3 detects the current of the conductive wire 10 through the current detection module, and when the conductive wire 10 is cut off, the circuit board 3 detects that no current exists in the conductive wire 10, and the central processing module controls the buzzer to sound, so that an alarm function is achieved.
Wherein, the passive layer 11 and the active layer 12 are made of the same material as the conventional bimetal, and the thickness of the passive layer 11 and the active layer 12 needs to be larger than that of the conventional bimetal so as to ensure that the passive layer 11 and the active layer 12 have enough force to shear the conductive wire 10 when bending.
In the invention, the shearing piece 8 stretches up and down at the top of the insulating shell 1 along the bending direction of the bimetallic strip, the deformation degree of the passive layer 11 and the active layer 12, the current in the conductive wire 10 and the temperature of the conductive wire 10 are all in direct proportion, so that the shearing piece 8 is matched to shear the conductive wire 10 after the passive layer 11 and the active layer 12 deform to a specific degree, the position of the shearing piece 8 in the vertical direction is required to be adjusted, the temperature when the conductive wire 10 is cut off is further adjusted, and the power-off temperature can be accurately adjusted.
When the invention is used, firstly, the connecting ends 7 at two sides of the insulating shell 1 are connected in series in a circuit to be protected, so that the conducting wire 10 is connected in series in the circuit, secondly, the rotating disc 17 and the two threaded columns 22 are rotated, so that the two threaded cylinders 18 are close to each other, the side surface of the shearing member 8 is not contacted with a bolt hole of the insulating shell 1, secondly, when the shearing member 8 is inserted to be at a proper position, then, the rotating disc 17 and the two threaded columns 22 are reversely rotated, so that the two threaded cylinders 18 are separated, the top of the shearing member 8 is pushed by the two threaded cylinders 18 to be separated, the top of the shearing member 8 is abutted against the bolt hole of the insulating shell 1, so that the shearing member 8 is fixed in the insulating shell 1, when the circuit is short-circuited, the current in the circuit and the conducting wire 10 is suddenly increased, the temperature of the conducting wire 10 is suddenly increased, the conducting wire 10 heats the passive layer 11 and the active layer 12, the passive layer 11 and the active layer 12 are bent downwards after the passive layer 11 and the active layer 12 are heated, after the passive layer 11 and the active layer 12 are bent to a specific angle, the passive layer 11 and the active layer 12 press the conducting wire 10 in the groove 16, the conducting wire 8, the top of the shearing member is pushed by the conducting wire 8, the conducting wire 8 is fixed in the bolt hole, the conducting wire 8 is fixed in the groove, the conducting hole, and the conducting wire 10 is fixed in the circuit, and the conducting wire 10 is heated to the current, and the central module to the central module, and the alarm module.
Claims (10)
1. The utility model provides an electric fire monitoring detector for line protection, includes insulating shell (1) and the inside temperature sensing subassembly that sets up thereof, and the inner wall of insulating shell (1) is provided with division board (2) and circuit board (3), and the bottom of insulating shell (1) is provided with apron (4) with its seal, is provided with charge mouth (5) and battery (6) on apron (4), and the both sides of insulating shell (1) are all embedded to be provided with link (7), its characterized in that: the temperature sensing assembly comprises a connecting frame (9), a conductive wire (10), a passive layer (11), an active layer (12) and a locking frame (13), wherein the connecting frame (9) is arranged on the inner wall of the insulating shell (1), a bimetallic strip formed by riveting the passive layer (11) and the active layer (12) is arranged in the middle of the connecting frame (9), the other end of the bimetallic strip is sleeved with the locking frame (13), and the conductive wire (10) for electrifying is clamped between the passive layer (11) and the active layer (12);
the top of insulating shell (1) is provided with shearing part (8), and shearing part (8) cooperate the bimetallic strip that is heated crooked to form shearing force and cut electrically conductive line (10) in the middle of passive layer (11) and active layer (12).
2. An electrical fire monitoring detector for line protection according to claim 1, characterized in that the conductive wire (10) passes through a notch (15) formed in the middle of the cutting member (8), and when the bimetal is bent downwards by heating, the conductive wire (10) is pressed against the cutting member (8) and cut.
3. The electrical fire monitoring detector for line protection according to claim 1, wherein the top of the notch (15) of the shearing member (8) is provided with an extrusion assembly for pushing the shearing member to open, and a groove (16) is formed below the notch (15) on the shearing member (8), and the groove (16) is matched with the conductive wire (11).
4. The electrical fire monitoring detector for line protection according to claim 3, wherein the extrusion assembly comprises a rotating disc (17), a threaded cylinder (18) and threaded columns (22), two threaded cylinders (18) are movably inserted into the side wall of the top of the notch (15), the threaded columns (22) are embedded into the threaded cylinders (18) in a threaded manner, and one ends of the two threaded columns (22) are fixedly provided with the rotating disc (17).
5. The electrical fire monitoring and detecting device for line protection according to claim 4, wherein the end of the screw tube (18) is integrally formed with a plug (19), the end of the plug (19) is integrally formed with a bump (20), and the inner wall of the other end of the screw tube (18) is provided with an internal thread (21).
6. The line protection electrical fire monitoring detector according to claim 5, wherein the surface of the threaded column (22) is provided with external threads (23) matching with the internal threads (21) of the inner wall of the threaded cylinder (18), and the external threads (23) of the surfaces of the two threaded columns (22) on the side of the rotating disc (17) are in opposite screw directions.
7. The electrical fire monitoring detector for line protection according to claim 4, wherein the plug-in block (19) is any one of a quadrangular prism, a pentagonal prism and a hexagonal prism, the shape of the plug-in block (19) is matched with a butt joint hole formed in the shearing member (8), and the protruding block (20) abuts against the shearing member (8) in a curved surface shape.
8. The electrical fire monitoring detector for line protection according to claim 2, wherein the top of the passive layer (11) and the bottom of the active layer (12) are provided with mounting grooves (14) so that a circular channel is formed between the passive layer (11) and the active layer (12), and the conductive wire (10) is matched with the channel.
9. The electrical fire monitoring detector for line protection according to claim 1, wherein the shearing member (8) is adapted to be in arc shape and is not in contact with the curved arc shape of the bimetal, and the top of the insulating shell (1) is provided with a plug pin opening for inserting the shearing member (8).
10. The electrical fire monitoring detector for line protection according to claim 1, wherein the separation plate (2) is located above the circuit board (3), the conductive wire (10), the charging port (5) and the storage battery (6) are electrically connected with the circuit board (3) through wires, and a buzzer, a current detection module and a central processing module are arranged on the circuit board (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311331335.7A CN117392800B (en) | 2023-10-16 | 2023-10-16 | Electrical fire monitoring detector for line protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311331335.7A CN117392800B (en) | 2023-10-16 | 2023-10-16 | Electrical fire monitoring detector for line protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117392800A true CN117392800A (en) | 2024-01-12 |
| CN117392800B CN117392800B (en) | 2024-04-02 |
Family
ID=89438456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311331335.7A Active CN117392800B (en) | 2023-10-16 | 2023-10-16 | Electrical fire monitoring detector for line protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117392800B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101951364B1 (en) * | 2018-11-16 | 2019-02-25 | (주)미도아트웍스 | Electric supplier with fire sensitivity |
| CN209675193U (en) * | 2019-01-17 | 2019-11-22 | 中山市兴鑫温控器有限公司 | A kind of sensitive high temperature open circuit protection temperature controller |
| WO2021227454A1 (en) * | 2020-05-11 | 2021-11-18 | 江苏中利集团股份有限公司 | Temperature-sensing fire detection cable |
| CN114373653A (en) * | 2022-03-15 | 2022-04-19 | 深圳市精视智造科技有限公司 | Expansion fuse |
-
2023
- 2023-10-16 CN CN202311331335.7A patent/CN117392800B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101951364B1 (en) * | 2018-11-16 | 2019-02-25 | (주)미도아트웍스 | Electric supplier with fire sensitivity |
| CN209675193U (en) * | 2019-01-17 | 2019-11-22 | 中山市兴鑫温控器有限公司 | A kind of sensitive high temperature open circuit protection temperature controller |
| WO2021227454A1 (en) * | 2020-05-11 | 2021-11-18 | 江苏中利集团股份有限公司 | Temperature-sensing fire detection cable |
| CN114373653A (en) * | 2022-03-15 | 2022-04-19 | 深圳市精视智造科技有限公司 | Expansion fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117392800B (en) | 2024-04-02 |
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