CN213743659U - Vehicle expansion tank with pressure detection - Google Patents
Vehicle expansion tank with pressure detection Download PDFInfo
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- CN213743659U CN213743659U CN202023010672.0U CN202023010672U CN213743659U CN 213743659 U CN213743659 U CN 213743659U CN 202023010672 U CN202023010672 U CN 202023010672U CN 213743659 U CN213743659 U CN 213743659U
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Abstract
The utility model discloses a vehicle expansion tank with pressure detection, including expansion tank, install pressure sensor in the expansion tank, pressure sensor is that expansion tank facial make-up pressure sensor passes pressure signal back and carries out data processing for vehicle ECU, and expansion tank top middle part is provided with the pressure lid, and expansion tank is inside to be provided with level sensor, and expansion tank left side or right side are provided with except that the trachea. The utility model discloses an engine has run several minutes, but expansion tank's pressure value still is close 0 or though be greater than 0 but numerical value is less and along with the engine incessantly operates numerical value and rise very little or not change, then explain expansion tank's leakproofness has become invalid, probably the sealed leakproofness that fills the pad of gland or the sealed pad of filler inefficacy and arouse, it also probably is that the relevant pipeline joint gas leakage of expansion tank arouses, find out reason maintenance or change, the detection of expansion tank leakproofness has been realized, reduce or avoid the emergence of cooling system trouble.
Description
Technical Field
The utility model relates to a car expansion tank field, in particular to vehicle expansion tank with pressure detection.
Background
Expansion tanks are typically made of sheet iron, steel or plastic, and are usually round or rectangular. Due to the expansion and contraction effect of the cooling liquid or the anti-freezing cooling liquid of the cooling system, when the temperature of the cooling liquid or the anti-freezing cooling liquid rises, the volume of the cooling liquid or the anti-freezing cooling liquid in the system is increased, and when the air space in the expansion water tank is compressed, the internal pressure of the cooling system is increased, so that the pressure at the water pump inlet of the cooling system is ensured to be a positive value, cavitation or cavitation of the cooling system is reduced, and the damage of an engine is reduced; in addition, the expansion water tank supplies the stored cooling liquid or the anti-freezing cooling liquid to the cooling system through the water supply pipe, so that the damage to the engine caused by the lack of the cooling liquid or the anti-freezing cooling liquid in the cooling system is avoided. The expansion tank can also separate air from the cooling liquid or the anti-freezing cooling liquid, namely, the air removal effect is achieved.
The expansion water tank used by the current vehicles in the market is not provided with a pressure sensor or a pressure display and cannot play a warning role, a sealing gasket of the expansion water tank is made of rubber materials, the use times are slightly more, the sealing surface of the sealing gasket is worn, the sealing effect is reduced, or the service life is prolonged, the sealing rubber gasket is aged, the sealing effect is poor or the sealing is invalid, the cooling system cannot establish the pressure set by the pressure cover, a vehicle user or a driver cannot find out the pressure, the water inlet of an engine water pump is changed into negative pressure or cannot ensure positive pressure due to the water suction effect of the water pump, cavitation and cavitation of a water pump body, an engine cylinder body and a cylinder sleeve can be accelerated, an engine is damaged, in addition, when the temperature of antifreeze solution of the cooling system is increased and the volume is expanded, the antifreeze solution can leak through the pressure cover and the sealing cover, the cooling system is lack of antifreeze solution, the air is increased, and the engine body is lack of antifreeze solution, the problems are solved by providing a vehicle expansion water tank with pressure detection, wherein the problems are solved by insufficient cooling and local high-temperature deformation, which cause cylinder cushion flushing, water return and water temperature (anti-freezing temperature) ultrahigh faults, so that an engine quickly enters high temperature alarm and torque limitation, and the vehicle cannot normally run and can be damaged if further deteriorated.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a vehicle expansion tank with pressure detection, for solving above-mentioned problem, in normal condition, expansion tank filler seal pad and pressure cap seal pad are sealed well, after the engine of vehicle started, operated for a few minutes, cooling system will establish pressure, pressure sensor or pressure display is greater than 0, along with operating duration extension, pressure will progressively grow until the pressure cap design pressure value; if the sealing gasket of the filling opening of the expansion water tank or the sealing gasket of the pressure cover fails and leaks, the numerical value of the pressure sensor or the pressure display is basically close to 0, the running time of the engine is prolonged, the pressure value does not change, and the set value of the pressure cover cannot be reached, a user or a driver can know that the sealing gasket fails or leaks by observing the pressure sensor or the pressure display, the sealing gasket, the pressure cover and the sealing cover can be replaced, and the fault of the cooling system can be avoided by spending a small amount of money, if the serious faults of engine body deformation, cylinder cushion flushing and engine damage caused by high water temperature and local cooling failure of the engine due to water return, coolant leakage or antifreeze coolant shortage or antifreeze coolant failure are avoided, the faults of a vehicle cooling system are avoided, the loss is reduced, the driving safety is ensured, and the problems in the background art can be effectively solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a vehicle expansion tank with pressure sensing, comprising: the expansion tank is provided with a water filling port at the outer side, the expansion tank is filled with cooling liquid or anti-freezing cooling liquid through the water filling port, the water filling port is closed through a sealing cover and a sealing gasket, a water injection pipe is arranged below the expansion tank and used for supplementing the cooling liquid or the anti-freezing cooling liquid to a vehicle cooling system, and when the expansion tank is lack of the anti-freezing liquid, the expansion tank is supplemented with the anti-freezing cooling liquid or the anti-freezing cooling liquid to the whole cooling system through the water filling port,
install pressure sensor in the expansion tank, expansion tank top middle part is provided with the pressure lid, can read the current pressure value of expansion tank through pressure sensor, exceed the pressure value that the pressure lid set for when the pressure value, the pressure lid is backed up by atmospheric pressure, expansion tank's air is released away, expansion tank's pressure drop, when falling the pressure lid setting value, the pressure lid resets under the effect of spring force, close, thereby monitor through pressure sensor monitoring expansion tank pressure value, judge whether expansion tank is sealed, protect cooling system, reduce or avoid the emergence of cooling system trouble.
Preferably, a liquid level sensor is arranged in the expansion water tank, the liquid level of the cooling liquid or the anti-freezing cooling liquid in the expansion water tank is measured through the liquid level sensor, and if the liquid level is ultralow, the liquid level sensor is triggered to send out a liquid level low alarm signal.
Preferably, the air removal pipe is arranged on the left side or the right side of the expansion water tank, when the engine runs, air in the cooling system mixed with cooling liquid or anti-freezing cooling liquid flows back to the expansion water tank through the air removal pipe, gas-liquid separation is achieved in the expansion water tank, and as the air in the expansion water tank is more and more, the pressure of the expansion water tank is also more and more increased.
Preferably, the pressure cover is fixed above the expansion water tank through rotating and screwing, the pressure cover is connected with a spring and a valve plate, and the pressure in the expansion water tank exceeds a limit value and pushes and compresses the spring to open the air valve for pressure relief.
Preferably, expansion tank is provided with the liquid level observation window, and the liquid level observation window adopts transparent material for observe expansion tank's liquid level, suggestion user or driver ensure that the liquid level keeps at safety range.
Preferably, the pressure sensor is arranged on the expansion water tank, transmits a pressure signal back to the vehicle ECU for data processing, and then displays the pressure signal on an instrument panel of a vehicle cab.
Compared with the prior art, the utility model discloses following beneficial effect has:
a user or a driver observes the current pressure value of the expansion water tank through the pressure sensor, and can judge whether the expansion water tank is sealed or not by combining with whether the engine runs or not, if the engine runs for a plurality of minutes, the pressure value of the expansion water tank is greater than 0 and can continuously rise along with the continuous running of the engine until the pressure value is close to the set value of the pressure cover, so that the expansion water tank is well sealed; if the engine runs for several minutes, but the pressure value of the expansion water tank is close to 0 or the numerical value is smaller although the pressure value is larger than 0 and the numerical value rises little or no change along with the continuous running of the engine, the sealing performance of the expansion water tank is failed, which is possibly caused by the sealing performance failure of a sealing gasket of a pressure cover or a sealing gasket of a filling opening, or is possibly caused by the air leakage of a joint of a related pipeline of the expansion water tank, and the sealing performance needs to be checked and removed one by one to find out the reason for maintenance or replacement;
the method realizes the detection of the sealing performance of the expansion water tank, avoids the related faults of the cooling system caused by poor sealing performance of the expansion water tank, particularly poor sealing performance of a sealing gasket of a pressure cover and a sealing gasket of a filling port, provides protection for the design and the method for pressure detection and display of the expansion water tank, protects the cooling system, and reduces or avoids the faults of the cooling system.
Drawings
Fig. 1 is the utility model discloses a vehicle expansion tank's overall structure chart with pressure detection.
In the figure: 1. a water tank body; 2. a pressure cap; 3. a liquid level sensor; 4. a water injection pipe; 5. a liquid level observation window; 6. removing an air pipe; 7. a pressure sensor; 8. and (4) a water filling port.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1, a vehicle expansion tank with pressure detection includes: the expansion tank comprises an expansion tank 1, wherein a water filling port 8 is arranged on the outer side of the expansion tank 1, cooling liquid or anti-freezing cooling liquid is added into the expansion tank 1 through the water filling port 8, the water filling port 8 is closed through a sealing cover and a sealing gasket, a water injection pipe 4 is arranged below the expansion tank 1, the cooling liquid or the anti-freezing cooling liquid is supplemented into a vehicle cooling system through the water injection pipe 4, when the expansion tank is lack of the anti-freezing liquid, the anti-freezing cooling liquid or the anti-freezing cooling liquid is supplemented into the expansion tank through the water filling port 8, namely the whole cooling system,
the expansion water tank 1 is internally provided with a liquid level sensor 3, the liquid level of cooling liquid or anti-freezing cooling liquid in the expansion water tank 1 is measured through the liquid level sensor 3, the left side or the right side of the expansion water tank 1 is provided with an air removing pipe 6, wherein the air removing pipe 6 can be distributed on the right side of the expansion water tank 1, if the liquid level is ultra-low, the liquid level sensor 3 is triggered to send out a liquid level low alarm signal, when an engine runs, air in a cooling system is mixed with the cooling liquid or the anti-freezing cooling liquid and flows back to the expansion water tank 1 through the air removing pipe 6, gas-liquid separation is realized in the expansion water tank 1, as the air in the expansion water tank 1 is more and more, the pressure is also more and more increased,
the expansion water tank 1 is provided with a liquid level observation window 5, the liquid level observation window 5 is made of transparent materials and is used for observing the liquid level of the expansion water tank and prompting a user or a driver to ensure that the liquid level is kept in a safe range,
the pressure sensor 7 is installed in the expansion water tank 1, the pressure sensor 7 transmits a pressure signal back to the vehicle ECU for data processing, and then the pressure signal is displayed on an instrument panel of a vehicle cab, the pressure cover 2 is arranged in the middle above the expansion water tank 1, the pressure cover 2 is connected with a spring and a sealing plate and fixed above the expansion water tank 1 to provide elastic force with fixed magnitude, when the elastic force exceeds the elastic force value, the pressure cover 2 can be pushed open, the current pressure value of the expansion water tank 1 can be read through the pressure sensor 7, when the pressure value exceeds the set pressure value of the pressure cover 2, the pressure cover 2 is pushed open by air pressure, the air of the expansion water tank 1 is released, the pressure of the expansion water tank 1 is reduced and falls to the set value of the pressure cover 2, the pressure cover 2 is reset and closed under the action of the spring force, and the pressure value of the expansion water tank 1 is monitored through the pressure sensor 7 for reading, when the pressure value exceeds the pressure value set by the pressure cover 2, the pressure cover 2 is jacked open by air pressure, the air of the expansion water tank 1 is released, the pressure of the expansion water tank 1 is reduced, and when the pressure value is reduced to the set value of the pressure cover 2, the pressure cover 2 is reset and closed under the action of the spring force, and the pressure value of the expansion water tank 1 is monitored through the pressure sensor or the pressure display 7, so that whether the expansion water tank is sealed or not is monitored and judged, a cooling system is protected, and the fault of the cooling system is reduced or avoided.
The utility model discloses a theory of operation is: a user or a driver observes the current pressure value of the expansion water tank 1 through the pressure sensor 7, and can judge whether the expansion water tank 1 is sealed or not by combining with whether the engine runs or not, if the engine runs for a plurality of minutes, the pressure value of the expansion water tank 1 is greater than 0 and can continuously rise along with the continuous running of the engine until the pressure value is close to the set value of the pressure cover 2, so that the expansion water tank 1 is well sealed; if the engine runs for several minutes, but the pressure value of the expansion water tank 1 is close to 0 or although the pressure value is greater than 0, the numerical value is smaller and the numerical value is increased little or unchanged along with the continuous running of the engine, the sealing performance of the expansion water tank 1 is failed, possibly caused by the sealing performance failure of a sealing gasket of the pressure cover 2 or a sealing gasket of the filling opening 8, possibly caused by the air leakage of a joint of a related pipeline of the expansion water tank, and the joint needs to be checked and removed one by one to find out the reason for maintenance or replacement;
the method realizes the detection of the sealing performance of the expansion water tank 1, avoids the related faults of the cooling system caused by poor sealing performance of the expansion water tank 1, particularly poor sealing performance of a sealing gasket of the pressure cover 2 and a sealing gasket of the filling port 8, provides protection for the design and the method for pressure detection and display of the expansion water tank, protects the cooling system, and reduces or avoids the faults of the cooling system.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a vehicle expansion tank with pressure detection, includes expansion tank (1), its characterized in that: the automobile water injection device is characterized in that a water filling port (8) is formed in the outer side of the expansion water tank (1), a water injection pipe (4) is arranged below the expansion water tank (1), a pressure sensor (7) is installed in the expansion water tank (1), the pressure sensor (7) transmits a pressure signal back to an ECU (electronic control unit) of an automobile for data processing, and a pressure cover (2) is arranged in the middle of the upper portion of the expansion water tank (1).
2. The vehicle expansion tank with pressure detection as claimed in claim 1, characterized in that: and a liquid level sensor (3) is arranged in the expansion water tank (1).
3. The vehicle expansion tank with pressure detection as claimed in claim 1, characterized in that: and a degassing pipe (6) is arranged on the left side or the right side of the expansion water tank (1).
4. The vehicle expansion tank with pressure detection as claimed in claim 1, characterized in that: the pressure cover (2) is connected with a spring and fixed above the expansion water tank (1).
5. The vehicle expansion tank with pressure detection as claimed in claim 1, characterized in that: the expansion tank (1) is provided with a liquid level observation window (5), and the liquid level observation window (5) is made of transparent materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023010672.0U CN213743659U (en) | 2020-12-15 | 2020-12-15 | Vehicle expansion tank with pressure detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023010672.0U CN213743659U (en) | 2020-12-15 | 2020-12-15 | Vehicle expansion tank with pressure detection |
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| Publication Number | Publication Date |
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| CN213743659U true CN213743659U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023010672.0U Active CN213743659U (en) | 2020-12-15 | 2020-12-15 | Vehicle expansion tank with pressure detection |
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| CN (1) | CN213743659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412609A (en) * | 2020-12-15 | 2021-02-26 | 广西玉柴机器股份有限公司 | Vehicle expansion tank with pressure detection |
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2020
- 2020-12-15 CN CN202023010672.0U patent/CN213743659U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412609A (en) * | 2020-12-15 | 2021-02-26 | 广西玉柴机器股份有限公司 | Vehicle expansion tank with pressure detection |
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