Automatic fire extinguishing device for automobile
By introducing a combination of relay switches and mechanical contact switches into the automatic fire extinguishing system of a car, automatic fire extinguishing can still be performed through mechanical transmission control even in the event of an electrical signal failure. This solves the problem of fire extinguishing failure caused by electrical signal failure and improves the safety performance of the car.
Patent Information
- Application Number
- CN202520006541.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing automatic fire suppression systems for automobiles cannot perform automatic fire suppression actions when there is a fault in the electrical signal control circuit. In particular, they cannot effectively extinguish fires when a car collision causes damage to the electrical signal connection circuit or the main control panel power is cut off.
The design employs a combination of relay switches and mechanical contact switches, triggering the fire extinguishing unit through a dual control method of electrical signals and mechanical transmission, ensuring that automatic fire extinguishing actions can still be performed even in the event of an electrical signal failure.
In the event of a fault in the electrical signal connection line, the fire extinguishing unit is triggered via mechanical transmission control to ensure effective automatic fire extinguishing in the event of a car fire, thereby improving safety performance.
Smart Images
Figure CN223746871U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to fire extinguishing equipment technical field, concretely relates to an automatic fire extinguishing device of car. BACKGROUND
[0002] With the gradual popularization and promotion of new energy vehicles, the safety of new energy is also the point that everybody most concerns, at present, the fire fighting equipment of most traffic tools is hand-held fire extinguisher, and the traffic tool can only use the hand-held fire extinguisher to extinguish the fire when the fire happens. In order to improve the fire extinguishing effect, the prior art proposes an automatic fire extinguishing device arranged in the fire prone area of the car, which mainly comprises a sensor, a control chip and a fire extinguishing unit, when the sensor detects that the fire happens, feedback signal is sent to the control chip, and the control chip sends control instruction to the fire extinguishing unit, controls the fire extinguishing unit to spray fire extinguishing agent and extinguishes the fire, that is, the automatic fire extinguishing is carried out in the mode of electric signal control. However, in some cases, for example, when the car collides, the electric signal connection line is damaged or the power supply of the main control panel is cut off, at this time, the automatic fire extinguishing cannot be carried out through the electric signal control. Therefore, the existing automatic fire extinguishing device needs to be improved. SUMMARY
[0003] Therefore, the utility model provides an automatic fire extinguishing device of car to solve the problem that the automatic fire extinguishing action can still be carried out when the electric signal control line fails.
[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:
[0005] An automatic fire extinguishing device of car, which comprises a power module and a fire extinguishing module connected by a relay switch, the movable contact of the relay switch is connected to the power module, the normally closed contact and the normally open contact of the relay switch are connected to the fire extinguishing module respectively, and a normally open mechanical contact switch is arranged on the connection line between the normally closed contact and the fire extinguishing module; the automatic fire extinguishing device of car further comprises:
[0006] A first detection trigger module is connected to the relay switch by electric signal, which is used for detecting whether the fire happens in the car and controlling the opening and closing state of the relay switch by electric signal;
[0007] A second detection trigger module is connected to the mechanical contact switch by mechanical transmission, which is used for detecting whether the fire happens in the car and controlling the opening and closing state of the mechanical contact switch by mechanical transmission.
[0008] Preferably, the first detection trigger module comprises a first sensor and a control chip electrically connected with each other, the control chip is electrically connected with the relay switch, the first sensor detects a sensing signal of whether a fire occurs in the car and feeds back to the control chip, and the control chip controls the opening and closing state of the relay switch according to the sensing signal.
[0009] Preferably, the first sensor comprises a temperature sensor and / or a smoke sensor.
[0010] Preferably, the second detection trigger module comprises a second sensor, a trigger assembly and a mechanical transmission assembly connected in sequence, the mechanical transmission assembly is mechanically connected with the mechanical contact switch; the second sensor detects whether a fire occurs in the car, controls the position state of the trigger assembly according to whether a fire occurs in the car, and the mechanical transmission assembly drives and controls the opening and closing state of the mechanical contact switch based on the position state of the trigger assembly.
[0011] Preferably, the second sensor is a glass ball containing a heat-expandable liquid, the temperature range of the glass ball breaking is not less than 90℃; the trigger assembly comprises a support column and a pressing plate, and the mechanical transmission assembly comprises a rotating arm, a connecting arm and a spring;
[0012] The middle part of the rotating arm is rotatably connected to an internal support of the car, the connecting arm is connected to the first end of the rotating arm, and the second end of the rotating arm is connected to the internal support of the car through the spring below;
[0013] The support column is connected to the internal support of the car, the second sensor is assembled in the support column, the pressing plate is connected with the second sensor and is pressed above the second end of the rotating arm, and the spring is in a compressed state;
[0014] The first contact of the mechanical contact switch is connected to the end of the connecting arm, and the second contact is arranged directly below the first contact.
[0015] Preferably, the fire extinguishing module comprises a fire extinguishing agent storage tank, an electromagnetic valve and a spray head connected in sequence, and the electromagnetic valve is electrically connected with the power module through the relay switch.
[0016] The automobile automatic fire extinguishing device provided by the embodiment of the utility model, comprising first detection trigger module and second detection trigger module, first detection trigger module adopts electric signal control mode to trigger fire extinguishing unit to execute fire extinguishing action, second detection trigger module adopts mechanical transmission control mode to trigger fire extinguishing unit to execute fire extinguishing action, therefore, the automobile automatic fire extinguishing device can trigger automatic fire extinguishing through mechanical transmission control mode in some cases when electric signal connection line fails to trigger automatic fire extinguishing, when fire breaks out in the automobile, can effectively guarantee the execution of automatic fire extinguishing action, improve safety performance. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the structure block diagram of the automobile automatic fire extinguishing device in the embodiment of the utility model;
[0018] Figure 2 It is the structure schematic view of the second detection trigger module in the embodiment of the utility model. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical scheme and advantage of the utility model more clear, the specific embodiment of the utility model is explained in detail below with the help of the drawings. The example of these preferred embodiments is illustrated in the drawings. The embodiment of the utility model shown in the drawings and described according to the drawings is only exemplary, and the utility model is not limited to these embodiments.
[0020] It should be noted that the same or similar numerals in the drawings of the embodiment of the utility model correspond to the same or similar parts; in the description of the utility model, it should be understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the patent, for ordinary skilled persons in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0021] Here, it should also be noted that, in order to avoid obscuring the utility model due to unnecessary details, only the structures and / or processing steps closely related to the scheme according to the utility model are shown in the drawings, and other details not closely related to the utility model are omitted.
[0022] The embodiment of the utility model provides a kind of automobile automatic fire extinguishing device, such as Figure 1As shown, the automobile automatic fire extinguishing device mainly comprises a relay switch 1, a power module 2, a fire extinguishing module 3, a mechanical contact switch 4, a first detection trigger module 5 and a second detection trigger module 6.
[0023] Specifically, a moving contact 11 of the relay switch 1 is connected to the power module 2, and a normally closed contact 12 and a normally open contact 13 of the relay switch 1 are respectively connected to the fire extinguishing module 3. The mechanical contact switch 4 is connected to a connection line between the normally closed contact 12 and the fire extinguishing module 3, and is set to a normally open state.
[0024] The fire extinguishing module 3 comprises a fire extinguishing agent storage tank 31, a solenoid valve 32 and a spray head 33 connected in sequence. The solenoid valve 32 is electrically connected to the power module 2 through the relay switch 1. When the relay switch 1 conducts the power module 2 and the solenoid valve 32, the solenoid valve 32 is opened, and the fire extinguishing agent stored in the fire extinguishing agent storage tank 31 is sprayed through the spray head 33 for fire extinguishing.
[0025] The first detection trigger module 5 is electrically connected to the relay switch 1, and is used for detecting whether a fire occurs in the automobile and controlling the opening and closing state of the relay switch 1 through an electrical signal. The first detection trigger module 5 comprises a first sensor 51 and a control chip 52 electrically connected to each other, and the control chip 52 is electrically connected to the relay switch 1. The first sensor 51 detects a sensing signal of whether a fire occurs in the automobile and feeds back to the control chip 52, and the control chip 52 controls the opening and closing state of the relay switch 1 according to the sensing signal. Specifically, when no fire occurs in a normal situation, the control chip 52 controls the state of the relay switch 1 to be that the moving contact 11 is connected to the normally closed contact 12; when it is detected that a fire occurs, the control chip 52 controls the state of the relay switch 1 to be that the moving contact 11 is connected to the normally open contact 13.
[0026] In a specific scheme, the first sensor 51 comprises a temperature sensor and / or a smoke sensor.
[0027] The second detection trigger module 6 is mechanically connected with the mechanical contact switch 4, and is used for detecting whether a fire occurs in the automobile and controlling the opening and closing state of the mechanical contact switch 4 through mechanical transmission. The second detection trigger module 6 comprises a second sensor 61, a trigger assembly 62 and a mechanical transmission assembly 63 connected in sequence, and the mechanical transmission assembly 63 is mechanically connected with the mechanical contact switch 4. The second sensor 61 detects whether a fire occurs in the automobile, controls the position state of the trigger assembly 62 according to whether a fire occurs in the automobile, and the mechanical transmission assembly 63 drives and controls the opening and closing state of the mechanical contact switch 4 based on the position state of the trigger assembly 62.
[0028] Specifically, as shown in the figure, the second sensor 61 is a glass ball containing a heat-expandable liquid, and the temperature range of the glass ball breaking is not less than 90℃. The trigger assembly 62 comprises a support column 621 and a top pressing plate 622, and the mechanical transmission assembly 63 comprises a rotating arm 631, a connecting arm 632 and a spring 633. Figure 2
[0029] The middle part of the rotating arm 631 is rotatably connected to an automobile inner support 100, the connecting arm 632 is connected to the first end of the rotating arm 631, and the second end of the rotating arm 631 is connected to the automobile inner support 100 through the spring 633.
[0030] The support column 621 is connected to the automobile inner support 100, the second sensor 61 is assembled in the support column 621, the top pressing plate 622 is connected with the second sensor 61 and is pressed above the second end of the rotating arm 631, and the spring 633 is in a compressed state.
[0031] The first contact 41 of the mechanical contact switch 4 is connected to the end of the connecting arm 632, and the second contact 42 is arranged directly below the first contact 41.
[0032] The second detection trigger module 6 as described above: in normal circumstances without fire, the top pressing plate 622 is stably connected with the glass ball (the second sensor 61) and presses on the second end of the rotating arm 631, so that the spring 633 is in a compressed energy storage state, at this time, the first end of the rotating arm 631 rises to drive the first contact 41 to rise, so that the first contact 41 and the second contact 42 are separated from each other, and the mechanical contact switch 4 is in an open state; when a fire occurs, the glass ball is damaged and broken, the top pressing plate 622 in a compressed energy storage state is disconnected with the glass ball and cannot continue to press the second end of the rotating arm 631, the spring 633 pushes the second end of the rotating arm 631 upward, at this time, the first end of the rotating arm 631 descends to drive the first contact 41 to press on the second contact 42, and the mechanical contact switch 4 is in a closed state. Wherein, a false touch prevention mechanism linked with the trigger assembly 62 can be arranged between the first contact 41 and the second contact 42.
[0033] It should be noted that in the above automobile automatic fire extinguishing device, the fire extinguishing module 3, the first sensor 51 and the second sensor 52 are arranged in the area of the automobile where the fire has been sent, such as the engine compartment, the instrument table, the trunk or the driver's cabin.
[0034] The automobile automatic fire extinguishing device provided in the above embodiment has the following advantages:
[0035] (1), in normal circumstances without fire, the moving contact 11 of the relay switch 1 is connected to the normally closed contact 12, and the mechanical contact switch 4 is in an open state. At this time, the connection circuit between the power supply module 2 and the fire extinguishing module 3 is disconnected, and the fire extinguishing module 3 cannot start the fire extinguishing action.
[0036] (2), when a fire occurs, and the electric signal connection line in the first detection trigger module 5 does not fail, the moving contact 11 of the relay switch 1 is connected to the normally open contact 13, and the mechanical contact switch 4 is in a closed state. At this time, the power supply module 2 is connected to the fire extinguishing module 3 through the normally open contact 13 in the relay switch 1, and the fire extinguishing module 3 starts the fire extinguishing action, that is, triggers the fire extinguishing unit to execute the fire extinguishing action by electric signal control mode.
[0037] (3), when a fire occurs, and the first detection trigger module 5 in the electric signal connection line fault, the relay switch 1 remains the initial state, the movable contact 11 of the relay switch 1 is connected to the normally closed contact 12, and the mechanical contact switch 4 is in a closed state. At this time, the power module 2 is connected to the fire extinguishing module 3 through the normally closed contact 12 in the relay switch 1 and the mechanical contact switch 4, and the fire extinguishing module 3 starts the fire extinguishing action, that is, triggers the fire extinguishing unit to execute the fire extinguishing action through the mechanical transmission control mode.
[0038] In summary, the automobile automatic fire extinguishing device provided by the embodiments of the present application can trigger automatic fire extinguishing through the mechanical transmission control mode in some cases when the electric signal connection line fails to trigger automatic fire extinguishing, and can effectively guarantee the execution of automatic fire extinguishing action and improve safety performance when a fire occurs in the automobile.
[0039] The above is only a specific embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.
Claims
1. An automatic fire extinguishing device for a vehicle, characterized by comprising: The automobile automatic fire extinguishing device comprises a power module (2) and a fire extinguishing module (3) which are electrically connected through a relay switch (1), a movable contact (11) of the relay switch (1) is connected to the power module (2), a normally closed contact (12) and a normally open contact (13) of the relay switch (1) are connected to the fire extinguishing module (3) respectively, a normally open mechanical contact switch (4) is arranged on a connecting line of the normally closed contact (12) and the fire extinguishing module (3); the automobile automatic fire extinguishing device further comprises: a first detection triggering module (5) which is electrically connected to the relay switch (1) and is used for detecting whether a fire occurs in the automobile and controlling an opening and closing state of the relay switch (1) through an electrical signal; a second detection triggering module (6) which is mechanically connected to the mechanical contact switch (4) and is used for detecting whether a fire occurs in the automobile and controlling an opening and closing state of the mechanical contact switch (4) through a mechanical transmission.
2. The automatic fire extinguishing apparatus for an automobile according to claim 1, characterized by The first detection triggering module (5) comprises a first sensor (51) and a control chip (52) which are electrically connected to each other, the control chip (52) is electrically connected to the relay switch (1), the first sensor (51) detects a sensing signal of whether a fire occurs in the automobile and feeds back the sensing signal to the control chip (52), and the control chip (52) controls the opening and closing state of the relay switch (1) according to the sensing signal.
3. The automatic fire extinguishing apparatus for an automobile according to claim 2, characterized by The first sensor (51) comprises a temperature sensor and / or a smoke sensor.
4. The automatic fire extinguishing device for a vehicle according to any one of claims 1 to 3, characterized by The second detection triggering module (6) comprises a second sensor (61), a triggering assembly (62) and a mechanical transmission assembly (63) which are connected in sequence, the mechanical transmission assembly (63) is mechanically connected to the mechanical contact switch (4), the second sensor (61) detects whether a fire occurs in the automobile, controls a position state of the triggering assembly (62) according to whether a fire occurs in the automobile, and the mechanical transmission assembly (63) drives and controls the opening and closing state of the mechanical contact switch (4) based on the position state of the triggering assembly (62).
5. The automatic fire extinguishing apparatus for an automobile according to claim 4, characterized by The second sensor (61) is a glass ball which is internally provided with a heat-expandable liquid, a temperature range of the glass ball breaking is not less than 90℃, the triggering assembly (62) comprises a supporting column (621) and a pressing plate (622), and the mechanical transmission assembly (63) comprises a rotating arm (631), a connecting arm (632) and a spring (633); a middle part of the rotating arm (631) is rotatably connected to an internal support (100) of the automobile, the connecting arm (632) is connected to a first end of the rotating arm (631), and a second end of the rotating arm (631) is connected to the internal support (100) of the automobile through the spring (633) below the second end; the supporting column (621) is connected to the internal support (100) of the automobile, the second sensor (61) is assembled in the supporting column (621), the pressing plate (622) is connected to the second sensor (61) and is pressed above a second end of the rotating arm (631), and the spring (633) is in a compressed state; and the second sensor (61) is a glass ball which is internally provided with a heat-expandable liquid, a temperature range of the glass ball breaking is not less than 90℃, the triggering assembly (62) comprises a supporting column (621) and a pressing plate (622), and the mechanical transmission assembly (63) comprises a rotating arm (631), a connecting arm (632) and a spring (633). The first contact (41) of the mechanical contact switch (4) is connected at the end of the connecting arm (632), and the second contact (42) is arranged directly below the first contact (41).
6. The automatic fire extinguishing apparatus for a vehicle according to claim 4, characterized by The fire extinguishing module (3) comprises a fire extinguishing agent storage tank (31), a solenoid valve (32) and a spray head (33) connected in sequence, and the solenoid valve (32) is electrically connected with the power module (2) through the relay switch (1).