CN214295835U

CN214295835U - Main power supply cut-off device before vehicle detonation

Info

Publication number: CN214295835U
Application number: CN202023247525.5U
Authority: CN
Inventors: 吴国卫; 刘书锋; 宋伟利
Original assignee: Zhengzhou Tongcheng Transportation Technology Co ltd
Current assignee: Zhengzhou Tongcheng Transportation Technology Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-09-28
Anticipated expiration: 2030-12-26

Abstract

The utility model relates to a total power cutting device before vehicle detonation, it includes the casing, can be internal be provided with coupling in the electric connecting piece on vehicle total power and operating circuit, be used for with the electrically conductive piece of electricity connecting piece switch-on, be used for driving the driving piece of the electrically conductive piece activity, be used for detecting the temperature sensing module of vehicle temperature and with temperature sensing module electric connection's control circuit, preset the temperature threshold value in the temperature sensing module, if the temperature sensing module monitors when the vehicle temperature is higher than the temperature threshold value, the control circuit control driving piece drive electrically conductive piece and the electricity connecting piece disconnection. The application has the effect of improving the safety of the vehicle.

Description

Main power supply cut-off device before vehicle detonation

Technical Field

The application relates to the field of transportation technology, in particular to a main power supply cut-off device before vehicle detonation.

Background

Along with the continuous development of socioeconomic, the demand of various trades to chemical raw materials is constantly increasing, and most chemical raw materials all have inflammable and explosive danger, need transport through special hazardous articles haulage vehicle, the haulage vehicle of inflammable and explosive hazardous articles commonly used has tank, box etc. consider haulage vehicle and personnel's security, the haulage vehicle of inflammable and explosive hazardous articles will be equipped with emergency cut-off device usually, emergency cut-off device includes the emergency cut-off to the hazardous articles leakage and the cutting off to vehicle power supply.

Chinese patent No. CN202004422U discloses an automatic fire-protection circuit breaker for automobiles, which comprises a switching circuit and an overcurrent protection circuit, wherein the switching circuit is connected in series between an automobile storage battery and an automobile electric device, and is controlled by the overcurrent protection circuit to switch on and off a power supply line of the automobile storage battery; the overcurrent protection circuit monitors the current on the power supply line of the automobile storage battery in real time, prevents the storage battery from supplying power to the automobile circuit with short circuit, and can prevent the short circuit part of the automobile from continuously generating electric sparks to protect the automobile.

In view of the above-described related art, the inventors consider that the sensitivity of the above-described automotive fire protection automatic circuit breaker is not high.

SUMMERY OF THE UTILITY MODEL

In order to improve the sensitivity of a vehicle power supply source cut-off device, the application provides a vehicle pre-explosion main power source cut-off device.

The application provides a total power supply cutting device before vehicle detonation adopts following technical scheme:

the utility model provides a vehicle is total power supply cutting device before detonation, includes the casing, can be internal to be provided with the electrical connector that is coupled on vehicle total power supply and operating circuit, be used for with the electrically conductive piece of electrical connector switch-on electrically conductive, be used for driving the driving piece of electrically conductive activity, be used for detecting the temperature sensing module of vehicle temperature and with temperature sensing module electric connection's control circuit, preset the temperature threshold value in the temperature sensing module, if the temperature sensing module monitors that the vehicle temperature is higher than the temperature threshold value, control circuit control driving piece drive electrically conductive and the electrically connected disconnection of piece.

By adopting the technical scheme, when a fire accident happens to the vehicle in the driving process, the temperature sensor detects the temperature rise of the vehicle and reaches the preset temperature threshold value, the signal is transmitted to the control circuit, the control circuit then controls the driving piece to drive the conductive piece to move, the conductive piece is disconnected with the electric connection piece, then the main power supply and the working circuit of the vehicle are disconnected, the sensitivity is high, further damage caused by the fact that the power supply is not cut off when the vehicle knocks is reduced, and the safety of the vehicle is improved.

Optionally, the conductive piece is further connected with a restoring piece, the restoring piece comprises a connecting rod which is connected to the side wall of the shell in a sliding mode, one end of the connecting rod is fixedly connected with one side, away from the electrical connector, of the restoring piece, and an elastic piece which enables the connecting rod to face away from the electrical connector to move is arranged on the connecting rod.

Through adopting above-mentioned technical scheme, when the vehicle does not take place fire hazard, the elastic component provides the elasticity that deviates from electricity and connects the piece direction for the connecting rod, and the connecting rod drives electrically conductive piece and has the trend that the orientation deviates from the direction removal of electricity union piece, makes electrically conductive piece and electricity union piece continuously switch on, and then makes vehicle main power supply and working circuit switch on, guarantees that electronic components on the vehicle normally works.

Optionally, the control circuit includes a controller, a driving circuit, a relay and a power supply unit, two ends of the controller are respectively connected with the driving circuit and the temperature sensing module, the driving circuit is electrically connected with the relay, the relay is electrically connected with the driving member, and the power supply unit is electrically connected with the driving member.

Through adopting above-mentioned technical scheme, when using, temperature sensing module will detect signal transmission and give the controller, and the controller carries out analysis processes to the signal, then gives drive circuit and control opening and shutting of relay with the signal transmission, and then controls the flexible of driving piece, and degree of automation is high, has improved the security of vehicle.

Optionally, the temperature sensing module includes a detection probe and a switch, an output end of the detection probe is electrically connected to an input end of the control circuit, and the switch is connected in series between the control unit and the detection probe.

By adopting the technical scheme, the detection probe can detect the temperature around the vehicle in real time, the sensitivity is good, the safety of the vehicle is improved, and the switch can disconnect the control unit and the detection probe when the cutting device is overhauled or the vehicle is idle, so that the maintenance and the use are convenient.

Optionally, a non-return assembly for non-return of the connecting rod is further arranged in the shell.

By adopting the technical scheme, the non-return assembly can prevent the connecting rod from resetting under the elastic action of the elastic piece and ensure that the conductive piece and the electric connecting piece are switched on again, so that the main power supply and the working circuit of the vehicle are always in a disconnected state after the vehicle is in a fire disaster, and the safety of the vehicle is ensured.

Optionally, the non-return assembly includes a rack fixed on the connecting rod, a gear rotatably connected to a side wall of the housing, a ratchet coaxially fixed with the gear, and a pawl rotatably connected to the housing, the gear is engaged with the rack, and the pawl is engaged with the ratchet.

Through adopting above-mentioned technical scheme, the connecting rod moves towards electricity and connects the piece under the effect of driving piece, drives gear and ratchet rotation, and when driving piece stop work, the ratchet cooperatees with the pawl and prevents the connecting rod and resets, makes electrically conductive piece and electricity connect the piece and keep off-state.

Optionally, an elastic sheet is further fixed on the side wall of the shell, and the elastic sheet is abutted against one side of the pawl departing from the ratchet wheel.

Through adopting above-mentioned technical scheme, the shell fragment provides the elasticity towards the ratchet for the pawl, makes pawl and ratchet continuously butt, reduces the condition that pawl and ratchet break away from, makes non return assembly normally work.

Optionally, the temperature sensing module is further electrically connected with an alarm.

Through adopting above-mentioned technical scheme, when the vehicle takes place conflagration harm, temperature sensing module gives the alarm with alarm signal transmission, and the alarm sends warning signal, warns driver and crew and flees from danger, guarantees driver and crew's safety, reduces the condition of casualties.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the temperature sensing module is matched with the control circuit, and a main power supply and a working circuit of the vehicle are cut off in time before the vehicle knocks, so that further danger of the vehicle is prevented, and the safety performance of the vehicle is improved;

2. the vehicle is monitored in real time through the detection probe, so that the sensitivity of the cut-off device is improved, and the safety of the vehicle is further improved;

3. the alarm can warn drivers and passengers in time and reduce the casualty rate of the passengers.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

FIG. 2 is a block diagram of a module connection of a control circuit and a temperature sensing module according to the present application.

FIG. 3 is a schematic view of the construction of the check assembly of the present application.

Description of reference numerals: 1. a housing; 11. a through hole; 12. a mounting cavity; 13. an electrical connection; 131. static contact; 132. wiring; 14. a conductive member; 15. a recovery member; 151. a connecting rod; 152. a button; 153. an elastic member; 16. a drive member; 161. a support plate; 162. mounting a plate; 163. a telescoping member; 2. a control circuit; 21. a controller; 22. a drive circuit; 23. a relay; 24. a power supply unit; 3. a temperature sensing module; 31. detecting a probe; 32. a switch; 33. an alarm; 4. a check assembly; 41. a rack; 42. a gear; 43. a rotating shaft; 44. a ratchet wheel; 45. a pawl; 46. a handle is rotated; 47. an elastic sheet.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a device for cutting off a main power supply before vehicle detonation. Referring to fig. 1 and 2, the main power supply cut-off device before vehicle explosion comprises a shell 1, wherein the shell 1 is in a hollow square shape and is formed with a mounting cavity 12, and the shell 1 is welded and fixed on a chassis of a vehicle. A conductive piece 14 and an electric connecting piece 13 are arranged in the shell 1, the conductive piece 14 and the electric connecting piece 13 are connected in series on a main power supply and an operating circuit of a vehicle, and the conductive piece 14 and the electric connecting piece 13 are in a conducting state to ensure the normal operation of electronic components of the vehicle. The shell 1 is also internally provided with a driving piece 16 which enables the conductive piece 14 and the electric connecting piece 13 to be changed from a conducting state to a disconnecting state, a control circuit 2 which is used for controlling the driving piece 16 and a temperature sensing module 3 which is electrically connected with the control circuit 2 and monitors the temperature of the vehicle are also arranged on the vehicle. When the vehicle encounters a detonation danger, the temperature sensing module 3 sends a power-off control instruction to the control circuit 2, and the control circuit 2 controls the driving piece 16 to enable the conductive piece 14 and the electric connecting piece 13 to be in a disconnected state, so that the danger of the vehicle is reduced.

Referring to fig. 1, the electrical connector 13 includes two fixed contacts 131, the fixed contacts 131 are all rectangular metal blocks and are horizontally disposed, the two fixed contacts 131 are respectively fixed on the opposite inner sidewalls of the housing 1, and the two fixed contacts 131 are located on the same straight line. The two stationary contacts 131 are welded with wires 132, and the wires 132 extend out of the housing 1 and are connected in series to the main power supply and the operating circuit of the vehicle. The conductive member 14 is a bridge contact, the bridge contact is a rectangular metal block, two ends of the bridge contact are respectively abutted to the bottoms of the two fixed contacts 131, and a restoring member 15 capable of continuously abutting the bridge contact and the fixed contacts 131 is further installed on the top surface of the bridge contact. The restoring piece 15 comprises a connecting rod 151, the connecting rod 151 is vertically welded and fixed on the top surface of the bridge contact, a through hole 11 is formed in the top of the shell 1, and the connecting rod 151 is in sliding fit with the through hole 11. The one end that connecting rod 151 deviates from the bridge type contact stretches out through-hole 11 and an organic whole is connected with button 152, wears to be equipped with elastic component 153 on the connecting rod 151, and elastic component 153 is the spring in this embodiment, the one end and the button 152 fixed connection of spring, the other end and the top surface butt of casing 1, and the spring is in compression state. The elastic force in the direction departing from the static contact 131 is applied to the connecting rod 151 through the elastic piece, so that the bridge contact is continuously abutted against the static contact 131, a main power supply and a working circuit of a vehicle are kept in a conducting state, and the normal work of electronic components of the vehicle is ensured.

Referring to fig. 1, the driving member 16 includes a support bracket welded to the top surface of the housing 1 and a telescopic member 163, the support bracket includes a support plate 161 and a mounting plate 162, the support plate 161 is perpendicular to the top surface of the housing 1, and the mounting plate 162 is parallel to the top surface of the housing 1. A telescoping member 163 is mounted on the side of the mounting plate 162 facing the housing 1. The telescopic member 163 is an electric push rod, which includes a cylinder welded on the mounting plate 162 and a push rod perpendicular to the top surface of the housing 1, and the button 152 is located on the telescopic path of the push rod. When the control circuit 2 controls the push rod of the telescopic member 163 to extend, the push rod pushes the button 152 to move towards the direction departing from the support frame, so as to drive the connecting rod 151 to move towards the fixed contact 131 along the through hole 11, and the bridge contact is separated from the fixed contact 131 to form a disconnection state, so that the main power supply and the working circuit of the vehicle are disconnected.

Referring to fig. 2, the control circuit 2 includes a controller 21, a driving circuit 22, a relay 23, and a power supply unit 24, the power supply unit 24 includes VCC1 and VCC2, VCC1 supplies power to the controller 21, and VCC1 is set to 1.5-5V. VCC2 supplies power for expansion piece 163, VCC2 sets up to 24V or 36V, and controller 21 is singlechip or PLC, and drive circuit 22's model is ULN 2003. The input end of the controller 21 is electrically connected with the output end of the temperature sensing module 3, the output end of the controller 21 is electrically connected with the input end of the driving circuit 22, and the output end of the driving circuit 22 is electrically connected with the controlled end of the relay 23. The control end of the relay 23 is connected in series with the power supply circuit of the telescopic member 163, and the relay 23 is in a normally open state.

Referring to fig. 2, the temperature sensing module 3 includes a plurality of detecting probes 31, a switch 32 and an alarm 33, the detecting probes 31 are electrically connected to an input terminal of the controller 21, the switch 32 is connected in series between the detecting probes 31 and the controller 21, and the switch 32 is used for controlling the on/off between the detecting probes 31 and the control circuit 2. The alarm 33 is electrically connected to the detection probe 31, and the alarm 33 is at least one of a signal lamp or a buzzer. A plurality of test probe 31 distribute at the locomotive of vehicle, automobile body all around, the vehicle bottom, and test probe 31 can the omnidirectional monitor the temperature of vehicle. The detection probe 31 is a temperature sensor, a temperature threshold value is preset in the temperature sensor, the temperature threshold value is set to be 500 degrees, when the temperature sensor monitors that the temperature of a certain part of the vehicle is greater than or equal to 500 degrees, the temperature sensor sends a power-off control instruction to the control circuit 2 and sends an alarm instruction to the alarm 33, the control circuit 2 controls the driving piece 16 to drive the conductive piece 14 to be separated from the electric connecting piece 13 to form a circuit-breaking state, and then the main power supply of the vehicle is disconnected from the working circuit, and meanwhile, the alarm 33 sends a warning signal to remind drivers and passengers of escaping dangers in time. Through the temperature self-checking ability of vehicle, can carry out real-time supervision to the safe operation of vehicle, when the high temperature, remind driver and crew in time to flee the vehicle, keep away from the danger source to ensure personal safety.

Referring to fig. 3, in order to maintain the conductive member 14 and the electrical connecting member 13 in the power-off state, a non-return assembly 4 is further disposed in the housing 1, the non-return assembly 4 includes a rack 41 welded to the connecting rod 151, a length direction of the rack 41 is identical to a length direction of the connecting rod 151, the rack 41 is engaged with a gear 42, a rotating shaft 43 is coaxially welded to a side wall of the gear 42, and the rotating shaft 43 is rotatably connected to an inner side wall of the housing 1. A ratchet wheel 44 is coaxially fixed on the rotating shaft 43, the ratchet wheel 44 is meshed with a pawl 45, a rotating handle 46 is welded and fixed on the side wall of the pawl 45, and the rotating handle 46 is rotatably connected on the side wall of the shell 1. An elastic sheet 47 is fixed on the inner side wall of the shell 1, and the elastic sheet 47 is abutted against one side of the pawl 45 departing from the ratchet 44. When the bridge contact is used, the push rod of the telescopic member 163 pushes the button 152 and the connecting rod 151 to move towards the housing 1, the rack 41 on the connecting rod 151 drives the gear 42 and the ratchet 44 to rotate, the pawl 45 abuts against the ratchet 44, the connecting rod 151 is prevented from being reset under the elastic action of the elastic member 153, and the bridge contact and the fixed contact 131 are ensured to be kept in a disconnected state.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A vehicle is total power supply cutting device before detonation, its characterized in that: the temperature sensor comprises a shell (1), wherein an electric connecting piece (13) coupled to a vehicle working circuit, a conductive piece (14) used for being connected with the electric connecting piece (13) and conducting electricity, a driving piece (16) used for driving the conductive piece (14) to move, a temperature sensing module (3) used for detecting the temperature of a vehicle and a control circuit (2) electrically connected with the temperature sensing module (3) are arranged in the shell (1), a temperature threshold value is preset in the temperature sensing module (3), and if the temperature sensing module (3) monitors that the temperature of the vehicle is higher than the temperature threshold value, the control circuit (2) controls the driving piece (16) to drive the conductive piece (14) to be disconnected from the electric connecting piece (13).

2. A pre-detonation main power supply cutoff device for a vehicle according to claim 1, characterized in that: conductive piece (14) still are connected with restoring piece (15), restoring piece (15) including sliding connection be in connecting rod (151) on casing (1) lateral wall, connecting rod (151) one end with conductive piece (14) towards one side fixed connection of electrical connector (13), be equipped with on connecting rod (151) and make connecting rod (151) orientation deviates from elastic component (153) that electrical connector (13) removed.

3. A pre-detonation main power supply cutoff device for a vehicle according to claim 1, characterized in that: control circuit (2) include controller (21), drive circuit (22), relay (23) and power supply unit (24), controller (21) both ends respectively with drive circuit (22) with temperature sensing module (3) electricity is connected, drive circuit (22) with relay (23) electricity is connected, relay (23) with driving piece (16) electricity is connected, power supply unit (24) with driving piece (16) electricity is connected.

4. A pre-explosion main power supply cutoff device for a vehicle according to claim 3, characterized in that: the temperature sensing module (3) comprises a detection probe (31) and a switch (32), the output end of the detection probe (31) is electrically connected with the input end of the control circuit (2), and the switch (32) is connected in series between the controller (21) and the detection probe (31).

5. A pre-explosion main power supply cutoff device for a vehicle according to claim 2, characterized in that: the shell (1) is also internally provided with a non-return assembly (4) for non-return of the connecting rod (151).

6. A pre-explosion main power supply cutoff device for a vehicle according to claim 5, characterized in that: the check assembly (4) comprises a rack (41) fixed on a connecting rod (151), a gear (42) rotatably connected to the side wall of the shell (1), a ratchet wheel (44) coaxially fixed with the gear (42), and a pawl (45) rotatably connected to the shell (1), wherein the gear (42) is meshed with the rack (41), and the pawl (45) is meshed with the ratchet wheel (44).

7. The pre-detonation main power supply cutoff device for a vehicle according to claim 6, characterized in that: an elastic sheet (47) is further fixed on the side wall of the shell (1), and the elastic sheet (47) is abutted against one side, deviating from the ratchet wheel (44), of the pawl (45).

8. A pre-explosion main power supply cutoff device for a vehicle according to claim 3, characterized in that: the temperature sensing module (3) is also electrically connected with an alarm (33).