CN214247483U - Expansion tank for automobile - Google Patents
Expansion tank for automobile Download PDFInfo
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- CN214247483U CN214247483U CN202022462114.1U CN202022462114U CN214247483U CN 214247483 U CN214247483 U CN 214247483U CN 202022462114 U CN202022462114 U CN 202022462114U CN 214247483 U CN214247483 U CN 214247483U
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- water tank
- tank body
- cavity
- level sensor
- water
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Abstract
The utility model discloses an expansion tank for car belongs to the automobile cooling system accessory field. It includes the water tank body, be equipped with pressure release lid, characterized by on the water tank body: the water tank body is internally provided with a partition plate which divides the internal space of the water tank body into an upper cavity and a lower cavity which are independent, the water tank body is provided with a siphon channel which is communicated with the upper cavity and the lower cavity, one end of the siphon channel is opened at the top of the upper cavity, the other end of the siphon channel is opened at the bottom of the lower cavity, and the pressure relief cover is arranged at the position of the lower cavity of the water tank body and communicated with the lower cavity; the water tank comprises a water tank body and is characterized in that a water level sensor fixing part is arranged on the outer side surface of the water tank body and is arranged at the position of an upper cavity of the water tank body. The utility model discloses can effectively establish the system pressure differential to the difficult weeping of sensor installation, it is convenient to dismantle.
Description
Technical Field
The utility model relates to an expansion tank for car, especially an expansion tank hangs on radiator belongs to the auto cooling system accessory field.
Background
Expansion tanks are an important accessory for automotive cooling systems. In the prior art, the expansion tank is arranged at the highest point of the whole cooling system, which is higher than the engine and the radiator, and the pressure relief cover is arranged at a high position above the expansion tank. When the installation space is limited in the automobile, the expansion water tank cannot be directly arranged at the highest point of the cooling system, the expansion water tank needs to be hung on the radiator and limited by the hanging installation position, the water tank is only 1/4 with the volume higher than that of the radiator, when the liquid level of the expansion water tank is lower than that of the radiator, normal water supplement cannot be carried out in the system, the system pressure difference cannot be effectively established, the internal and external pressure balance of the whole cooling system cannot be realized, and the automobile cooling system cannot normally work. In addition, the sensor of the existing expansion water tank is vertically arranged in the Z direction in space and is of a built-in structure, the sensor is in direct contact with the anti-freezing solution, a thread sealing mode is adopted, leakage of the water tank is easy to cause, and the built-in structure is inconvenient to disassemble and assemble.
Disclosure of Invention
To the above-mentioned defect that exists among the prior art, the utility model provides a can effectively establish the system pressure difference to the expansion tank for car of the difficult weeping of sensor installation.
The utility model discloses a realize through following technical scheme: the utility model provides an expansion tank for car, includes the water tank body, be equipped with pressure release lid, characterized by on the water tank body: the water tank body is internally provided with a partition plate which divides the internal space of the water tank body into an upper cavity and a lower cavity which are independent, the water tank body is provided with a siphon channel which is communicated with the upper cavity and the lower cavity, one end of the siphon channel is opened at the top of the upper cavity, the other end of the siphon channel is opened at the bottom of the lower cavity, and the pressure relief cover is arranged at the position of the lower cavity of the water tank body and communicated with the lower cavity; the water tank comprises a water tank body and is characterized in that a water level sensor fixing part is arranged on the outer side surface of the water tank body and is arranged at the position of an upper cavity of the water tank body.
The utility model discloses in, separate the inner space of water tank body for upper portion cavity and lower part cavity through the baffle, wherein the upper portion cavity is the liquid chamber, and the lower part cavity is the siphon chamber, for the gas chamber. During operation, the gas-liquid mixture in the engine cooling system is in the upper cavity of the water tank body, when pressure in the water tank rises, gas in the liquid cavity enters the siphon cavity through the siphon channel, and pressure is relieved through the pressure relief cover when the positive pressure value is reached. After the engine stops working, negative pressure is generated in the cooling system, after the negative pressure value is reached, atmospheric pressure enters the siphon cavity, a small amount of liquid is replenished to the liquid cavity through the siphon channel, and the balance of the internal pressure and the external pressure of the whole cooling system is realized. The utility model discloses in, the level sensor fixed part that sets up at the lateral surface of water tank body is used for installing level sensor, and level sensor can the snap-on in the outside of water tank, and liquid contactless in with the water tank has avoided the weeping risk.
Further, for the installation and the dismantlement of level sensor, the level sensor fixed part is the joint structure, the joint structure has the draw-in groove that can block level sensor.
Furthermore, a baffle plate which is vertically arranged and used for limiting the movement of the floater is arranged in the cavity at the upper part of the water tank body. The floater can be limited to ascend and descend only by the baffle, so that the alarm is more accurate.
Further, the water level sensor is horizontally fixed on the water level sensor fixing part.
The utility model has the advantages that: the utility model discloses a design expansion tank internal cavity for the two-chamber design of upper portion cavity and lower part cavity, raised the liquid chamber position, realized the high-order moisturizing function of liquid chamber, through the design of siphon passageway, reach positive negative pressure value pressure relief cover and open, realized the inside and outside pressure balance of whole cooling system; the water level sensor fixing part is arranged on the outer side face of the water tank body and used for installing the water level sensor, the water level sensor can be directly fixed on the outer side of the water tank and is not in contact with liquid in the water tank, liquid leakage risks are avoided, meanwhile, the water level sensor is external, the water level sensor is convenient to install and detach, and repeated disassembly and assembly are convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic front view of the present invention;
FIG. 3 is a partially enlarged schematic view of a portion of the water level sensor of FIG. 2;
FIG. 4 is a schematic cross-sectional view of a siphon channel portion of the present invention;
fig. 5 is a schematic view of the arrangement of the baffle plate in the present invention;
in the figure, 1, a water tank body, 2, a degassing port, 3, a liquid adding cover, 4, a pressure relief cover, 5, a water level sensor, 6, a water supplementing port, 7, a siphon channel, 8, a liquid cavity, 9, a siphon cavity, 10, an air inlet, 11, a water return port, 12, a partition plate, 13, a baffle plate, 14, a floater, 15 and a water level sensor fixing part.
Detailed Description
The invention will now be further described by way of non-limiting examples with reference to the accompanying drawings:
as shown in the attached drawings, the expansion tank for the automobile is hung on a radiator when in use, and comprises a tank body 1, wherein the tank body 1 is welded into an integral structure by an upper tank body and a lower tank body in a welding mode. The water tank comprises a water tank body 1 and is characterized in that a liquid feeding cover 3 and a degassing port 3 are arranged on the upper portion of the water tank body 1, a partition plate 12 is arranged in the water tank body 1, the partition plate 12 divides the inner space of the water tank body 1 into an upper cavity and a lower cavity which are independent, the upper cavity is a liquid cavity 8, and the lower cavity is a siphon cavity 9. The lateral wall of water tank body 1 is provided with siphon passageway 7 intercommunication upper portion cavity and lower part cavity, siphon passageway 7 one end opening is in the top of upper portion cavity, is air inlet 10, and its other end opening is in the bottom of lower part cavity, for return water mouth 11. The pressure relief cover 4 is arranged at the lower cavity position of the water tank body 1 and is communicated with the lower cavity. The pressure relief cap 3 is prior art. A water level sensor fixing part 15 is arranged on the outer side surface of the water tank body 1, and the water level sensor fixing part 15 is arranged at the upper cavity position of the water tank body 1. The water level sensor fixing part 15 is used for mounting the water level sensor 5, and the water level sensor 5 is horizontally fixed on the water level sensor fixing part 15 in the space X direction. The water level sensor 5 in this embodiment is an external non-contact structure, that is, the water level sensor 5 is installed outside the water tank body and is not in direct contact with the liquid in the water tank, so that the risk of liquid leakage of the existing contact sensor is avoided, and the sensor can be conveniently repeatedly disassembled and assembled. The water level sensor 5 in this embodiment is a conventional one, and will not be described herein. To facilitate the installation and removal of the water level sensor, it is preferable in this embodiment that: the water level sensor fixing part 15 is a clamping structure which is provided with a clamping groove capable of clamping the water level sensor 5, and the clamping groove is formed by surrounding clamping columns. The side surface of the water level sensor 5 is provided with a clamping block, when the water level sensor 5 is installed, the clamping block on the side surface of the sensor is directly clamped in the clamping groove of the water level sensor fixing part 15, so that the sensor is fixed, and the clamping block of the sensor is separated from the clamping groove of the water level sensor fixing part 15 during disassembly. A water replenishing opening 6 is also arranged on the water tank body 1.
In order to improve the accuracy of water level alarm, in this embodiment, a vertically arranged baffle 13 for limiting the movement of the float is arranged in the upper cavity of the water tank body 1. The floater 14 is arranged on the inner side of the baffle 13, and the floater 14 can be limited to only ascend and descend through the baffle 13, so that the alarm accuracy is improved.
The utility model discloses during operation, the gas-liquid mixture in the engine cooling system gets into inside the water tank through except that gas port 2. When the pressure in the water tank rises, the gas in the liquid cavity 8 enters the siphon cavity 9 through the air inlet 10 above the siphon channel 7, and is decompressed through the pressure relief cover 4 when the positive pressure value is reached. After the engine stops working, negative pressure is generated in the cooling system, after the negative pressure value is reached, atmospheric pressure enters the siphon cavity 9, a small amount of liquid is supplemented back to the liquid cavity 8 through the water return port 11 below the siphon channel, and the balance of the internal pressure and the external pressure of the whole cooling system is realized.
The lowest water level of the water tank is always higher than the radiator, and after the engine stops working, the liquid in the liquid cavity 8 can be smoothly supplemented back into the cooling system.
Other parts in this embodiment are the prior art, and are not described herein again.
Claims (4)
1. The utility model provides an expansion tank for car, includes water tank body (1), be equipped with pressure relief cover (4), characterized by on water tank body (1): a partition plate (12) is arranged in the water tank body (1) to divide the inner space of the water tank body (1) into an upper cavity and a lower cavity which are independent, a siphon channel (7) is arranged in the water tank body (1) to communicate the upper cavity with the lower cavity, one end of the siphon channel (7) is opened at the top of the upper cavity, the other end of the siphon channel is opened at the bottom of the lower cavity, and the pressure relief cover (4) is arranged at the lower cavity of the water tank body (1) and communicated with the lower cavity; the water tank is characterized in that a water level sensor fixing part (15) is arranged on the outer side face of the water tank body (1), and the water level sensor fixing part (15) is arranged at the position of an upper cavity of the water tank body (1).
2. The expansion tank for automobile as claimed in claim 1, wherein: the water level sensor fixing part (15) is of a clamping structure, and the clamping structure is provided with a clamping groove capable of clamping the water level sensor.
3. The expansion tank for automobile as claimed in claim 1 or 2, wherein: a baffle (13) which is vertically arranged and used for limiting the movement of the floater is arranged in the upper cavity of the water tank body (1).
4. The expansion tank for automobile as claimed in claim 1 or 2, wherein: the water level sensor is horizontally fixed on the water level sensor fixing part (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022462114.1U CN214247483U (en) | 2020-10-30 | 2020-10-30 | Expansion tank for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022462114.1U CN214247483U (en) | 2020-10-30 | 2020-10-30 | Expansion tank for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214247483U true CN214247483U (en) | 2021-09-21 |
Family
ID=77730744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022462114.1U Active CN214247483U (en) | 2020-10-30 | 2020-10-30 | Expansion tank for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214247483U (en) |
-
2020
- 2020-10-30 CN CN202022462114.1U patent/CN214247483U/en active Active
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