Low-temperature anti-freezing alarm for vehicle water tank

Abstract

The utility model provides a vehicle water tank low-temperature anti-freezing warning device which comprises a film type pressure sensing resistor which is attached to the inner wall of a vehicle water tank and immersed in liquid, and the output end of the film type pressure sensing resistor is connected with the input end of a sensor circuit module. And a node J1 of the output end of the sensor circuit module is connected with the input end of the sound-light alarm module or the 4G remote control module, and the sensor circuit module controls the on-off of the sound-light alarm module or the 4G remote control module according to the comparison result of the alarm threshold voltage and the input end voltage, so that the monitoring and alarm of the icing state of the liquid in the vehicle water tank are realized. The vehicle water tank anti-freezing alarm device overcomes the defect that a vehicle water tank is frozen and damaged in winter, can achieve the anti-freezing alarm function of the water tank, can flexibly adjust the alarm threshold value through the sensor circuit module according to the model of the vehicle water tank, meets the use requirements of vehicle water tanks of different sizes, and is simple in structure, small in size, low in cost, suitable for all vehicles and suitable for popularization and application. And the market space is wide.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle anti-freezing technical field, concretely relates to a vehicle water tank low temperature anti-freezing alarm. BACKGROUND

[0002] Vehicle ownership is increasing in China, and the winter temperature in northern areas is cold, which puts forward higher requirements for the anti-freezing function of vehicle water tanks. The quality of vehicle antifreeze on the market is uneven, and some long-time parked vehicles are damaged due to the use of inferior antifreeze or the deterioration of antifreeze, causing the water tank to freeze in winter. There is no product on the market that can monitor and warn the water tank in low temperature anti-freezing in real time, and the driver can only check by opening the vehicle hood, which cannot effectively prevent the water tank from freezing. If the water tank low temperature anti-freezing monitoring and warning can be realized, the risk of water tank freezing can be effectively avoided, and the vehicle maintenance cost can be reduced. Therefore, it is necessary to improve. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem: provide a kind of vehicle water tank low temperature anti-freezing alarm, by being set in the thin film type pressure sensing resistance of liquid internal immersion on the inner wall of vehicle water tank, and make thin film type pressure sensing resistance pass through sensor circuit module and audible and visual alarm module or 4G remote control module, realize the monitoring and warning of liquid icing state in vehicle water tank, solve the disadvantage that vehicle water tank freezes and is damaged in winter, can realize water tank anti-freezing alarm function, can be flexibly adjusted according to the alarm threshold value of vehicle water tank model by sensor circuit module, meet the vehicle water tank of different size use, simple structure, small and exquisite, low in cost, applicable to all vehicles, there is extensive market space.

[0004] The utility model adopts the technical scheme: vehicle water tank low temperature anti-freezing alarm, including the thin film type pressure sensing resistance of being attached to the inner wall of vehicle water tank and being immersed in liquid interior, the output of thin film type pressure sensing resistance is connected with the input of sensor circuit module, and the node J1 of sensor circuit module output end is connected with the input of audible and visual alarm module or 4G remote control module, and audible and visual alarm module or 4G remote control module is controlled by sensor circuit module according to the comparison result of alarm threshold voltage and input voltage voltage, and the on-off of audible and visual alarm module or 4G remote control module is realized, and the monitoring and warning of liquid icing state in vehicle water tank are realized.

[0005] The sensor circuit module comprises a resistance R3, an operational amplifier OP1 connected with the thin-film pressure sensing resistance to form a voltage comparator, a resistance R1, a resistance R2, and a knob resistor Rw, the reverse input end of the operational amplifier OP1 is connected with the resistance R1 and the thin-film pressure sensing resistance, the resistance R1 is connected in parallel with a series connection branch of the resistance R2 and the knob resistor Rw, the same direction input end of the operational amplifier OP1 is connected with the knob resistor Rw, the resistance R3 is connected in series at the output end of the operational amplifier OP1, and the node J1 at the output end of the resistance R3 is connected with the input end of the sound-light alarm module or the 4G remote control module, and a voltage stabilizing diode ZD1 connected with one end to the ground is connected between the output end of the resistance R3 and the input end of the sound-light alarm module.

[0006] Further, the thin-film pressure sensing resistance adopts an OP07 type operational amplifier.

[0007] Further, the knob resistor Rw adopts an external mounting structure, and the alarm threshold voltage is adjusted through the knob resistor Rw.

[0008] Further, the sound-light alarm module comprises a triode Q1, a resistance R4, a resistance R5, and a buzzer FB1, the base b of the triode Q1 is connected with the node J1 at the output end of the sensor circuit module, a series connection branch of the resistance R4 and an indicator lamp LED1 is connected in parallel with a series connection branch of the resistance R5 and the buzzer FB1 to form a parallel branch, one end of the parallel branch is connected to the ground, and the other end is connected with the emitter e of the triode Q1, and the collector c of the triode Q1 is connected with a power supply.

[0009] Further, the triode Q1 adopts an S8050 type triode.

[0010] The utility model discloses compared with prior art has the advantages of:

[0011] 1, this technical scheme through setting the thin-film pressure sensing resistance that dips inside liquid on the inner wall of vehicle water tank, and the liquid is directly contacted with convenient and fast installation, accurate monitoring liquid morphological change, provides the freezing monitoring condition for the liquid in vehicle water tank,

[0012] 2, this technical scheme makes the thin-film pressure sensing resistance connect with sensor circuit module, and the sound-light alarm module or 4G remote control module is controlled according to the comparison result of alarm threshold voltage and input voltage by sensor circuit module, realizes the monitoring and alarm of the liquid icing state in vehicle water tank, solves the damage of vehicle water tank freezing in winter, can realize the water tank anti-freezing alarm function,

[0013] 3、The knob type rheostat Rw of external installation of the technical scheme, flexible adjustment of the alarm threshold according to the vehicle water tank model is realized, so that the vehicle water tank of different sizes is used, and the application range is wide.

[0014] 4、The technical scheme has simple structure, small size and low cost, is suitable for all vehicles, and has wide market space. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 The circuit diagram when the utility model is connected with the sound-light alarm module;

[0016] Fig. 2 The circuit diagram when the utility model is connected with the 4G remote control module. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below Figs. 1-2 , and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0018] It should be noted that, in this paper, without the opposite description, it is understood that: the terms 'center', 'upper', 'lower', 'front','rear', 'left', 'right','vertical', 'horizontal', 'top', 'bottom', 'inner', 'outer' and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms 'first','second', 'third' and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0019] In this paper, the term 'including', 'containing' or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations. The element defined by the statement 'including a...' does not exclude the presence of another identical element in the process, method, article or device including the element.

[0020] The vehicle water tank low-temperature anti-freezing alarm device, such as Figs. 1-2As shown, including the film type pressure sensing resistance 2 attached to the inner wall of the vehicle water tank 1 and immersed in the liquid inside, the output end of the film type pressure sensing resistance 2 is connected with the input end of the sensor circuit module 3, and the node J1 of the output end of the sensor circuit module 3 is connected with the input end of the sound and light alarm module 4 or the 4G remote control module 5, and the sound and light alarm module 4 or the 4G remote control module 5 is controlled by the sensor circuit module 3 according to the comparison result of the alarm threshold voltage and the input end voltage, realizing the monitoring and alarm of the liquid icing state in the vehicle water tank 1; in the above structure, by setting the film type pressure sensing resistance 2 immersed in the liquid inside on the inner wall of the vehicle water tank 1, it is convenient and fast to install, directly contacts with the liquid, accurately monitors the form change of the liquid, and provides the icing monitoring condition for the liquid in the vehicle water tank 1; the film type pressure sensing resistance 2 is connected with the sensor circuit module 3, the sound and light alarm module 4 or the 4G remote control module 4 is controlled by the sensor circuit module 3 according to the comparison result of the alarm threshold voltage and the input end voltage, realizing the monitoring and alarm of the liquid icing state in the vehicle water tank 1, solving the damage of the vehicle water tank 1 icing in winter, and realizing the water tank anti-icing alarm function;

[0021] As shown in the figure, Figs. 1-2 As shown, the sensor circuit module 3 includes resistance R3 and operational amplifier OP1 connected with the film type pressure sensing resistance 2 to form a voltage comparator, resistance R1, resistance R2, knob type rheostat Rw, the reverse input end of the operational amplifier OP1 is connected with the resistance R1 and the film type pressure sensing resistance 2, the resistance R1 is connected in parallel with the series connection branch of the resistance R2 and the knob type rheostat Rw, and the same direction input end of the operational amplifier OP1 is connected with the knob type rheostat Rw, the resistance R3 is connected in series at the output end of the operational amplifier OP1, and the node J1 of the output end of the resistance R3 is connected with the input end of the sound and light alarm module 4 or the 4G remote control module 5, and a voltage stabilizing diode ZD1 connected with one end to ground is connected between the output end of the resistance R3 and the input end of the sound and light alarm module 4; specifically, the film type pressure sensing resistance 2 adopts OP07 type operational amplifier; specifically, the knob type rheostat Rw adopts an external installation structure, and the alarm threshold voltage is adjusted through the knob type rheostat Rw; in the above structure, the externally installed knob type rheostat Rw realizes the flexible adjustment of the alarm threshold according to the model of the vehicle water tank 1, thereby meeting the use of vehicle water tanks 1 of different sizes, and having wide application range;

[0022] As shown in the figure, Fig. 1As shown, the sound and light alarm module 4 includes a triode Q1, a resistor R4, a resistor R5 and a buzzer FB1, the base b of the triode Q1 is connected with the node J1 of the output end of the sensor circuit module 3, the series branch of the resistor R4 and the indicator lamp LED1 is connected with the series branch of the resistor R5 and the buzzer FB1 in parallel to form a parallel branch, and one end of the parallel branch is grounded and the other end is connected with the emitter e of the triode Q1, and the collector c of the triode Q1 is connected with the power supply; specifically, the triode Q1 adopts an S8050 type triode.

[0023] When the pressure in the vehicle water tank 1 is normal, the resistance of the thin film pressure sensing resistor 2 is extremely large, the voltage at the reverse input end (point A) of the operational amplifier OP1 is approximately equal to the power supply voltage, which is higher than the threshold voltage at the same direction input end (point B), therefore, the low level at the node J1 of the output end of the sensor circuit module 3 is output to the base b of the triode Q1, at this time, the collector c and the emitter e of the triode Q1 are cut off, and the buzzer FB1 and the indicator lamp LED1 do not work; when the internal pressure of the vehicle water tank 1 is increased due to the freezing of the liquid, the resistance of the thin film pressure sensing resistor 2 is reduced with the increase of the pressure, and the voltage at the reverse input end (point A) of the operational amplifier OP1 is also reduced synchronously, when the voltage at the point A is reduced to be less than the voltage at the point B, the voltage at the same direction input end of the operational amplifier OP1 is greater than the voltage at the reverse input end, and the high level at the Vo is output to the base b of the triode Q1, at this time, the collector c and the emitter e of the triode Q1 are turned on, and the buzzer FB1 and the indicator lamp LED1 work to start the sound and light alarm, when the water in the vehicle water tank 1 is discharged or other pressure reduction treatment is performed, the internal pressure returns to normal, the circuit returns to the initial state, and the sound and light alarm stops, the pressure alarm threshold can be flexibly adjusted according to the actual size of the vehicle water tank 1, and the adjustment is mainly realized by rotating the knob type variable resistor Rw to change the voltage at the point B.

[0024] The present scheme can also realize the remote monitoring of the mobile phone APP, and a 3.3V stabilizing circuit composed of a 3.3V stabilizing diode ZD1 is connected to the output end of the operational amplifier OP1 and the input end of the triode Q1, so that the output high level can be controlled at 3.3V, at this time, the node J1 is disconnected, and a wire is directly connected to a detection port of any 4G remote control module on the market, so that when the data acquisition module detects the high level, an alarm signal is sent, and the mobile phone APP can monitor the water tank at any time.

[0025] The present technical scheme has the advantages of simple structure, small size, low cost, no need for frequent inspection or frequent replacement of antifreeze, elimination of the consumption of the driving energy of the driver, and wide market space.

[0026] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0027] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment only contains one independent technical solution. The specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A low temperature freeze warning device for a vehicle radiator characterized by: The application relates to a vehicle water tank liquid icing state monitoring and alarming device, which comprises a thin film pressure sensing resistor (2) attached to the inner wall of a vehicle water tank (1) and immersed in liquid, the output end of the thin film pressure sensing resistor (2) is connected with the input end of a sensor circuit module (3), the node J1 of the output end of the sensor circuit module (3) is connected with the input end of an audible and light alarm module (4) or a 4G remote control module (5), and the audible and light alarm module (4) or the 4G remote control module (5) is controlled by the sensor circuit module (3) according to the comparison result of the alarm threshold voltage and the input end voltage, so that the vehicle water tank (1) liquid icing state monitoring and alarming are realized.

2. The vehicle radiator low temperature anti-freeze warning device of claim 1, wherein: The sensor circuit module (3) comprises a resistor R3, an operational amplifier OP1 connected with the thin film pressure sensing resistor (2) to form a voltage comparator, a resistor R1, a resistor R2 and a knob resistor Rw, the reverse input end of the operational amplifier OP1 is connected with the resistor R1 and the thin film pressure sensing resistor (2), the resistor R1 is connected in parallel with the series connection branch of the resistor R2 and the knob resistor Rw, the same direction input end of the operational amplifier OP1 is connected with the knob resistor Rw, the resistor R3 is connected in series at the output end of the operational amplifier OP1, the node J1 at the output end of the resistor R3 is connected with the input end of the audible and light alarm module (4) or the 4G remote control module (5), and a voltage stabilizing diode ZD1 connected with one end grounded is connected between the output end of the resistor R3 and the input end of the audible and light alarm module (4).

3. The vehicle coolant tank freeze warning system of claim 2 wherein: The thin film pressure sensing resistor (2) adopts an OP07 type operational amplifier.

4. The vehicle coolant tank freeze warning system of claim 3 wherein: The knob resistor Rw adopts an external mounting structure, and the alarm threshold voltage is adjusted through the knob resistor Rw.

5. The vehicle coolant tank freeze warning system of claim 1 wherein: The audible and light alarm module (4) comprises a triode Q1, a resistor R4, a resistor R5 and a buzzer FB1, the base b of the triode Q1 is connected with the node J1 at the output end of the sensor circuit module (3), the series connection branch of the resistor R4 and an indicator lamp LED1 is connected in parallel with the series connection branch of the resistor R5 and the buzzer FB1 to form a parallel branch, one end of the parallel branch is grounded, and the other end is connected with the emitter e of the triode Q1, and the collector c of the triode Q1 is connected with a power supply.

6. The vehicle coolant tank freeze warning system of claim 5 wherein: The triode Q1 adopts an S8050 type triode.

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