CN222315224U - Water tank cover, expansion tank and vehicle - Google Patents

Abstract

The utility model discloses a water tank cover, an expansion water tank and a vehicle, which comprise a cover body, wherein a concave cavity is formed in the upper part of the cover body, a gas filtering device is arranged in the concave cavity, a plurality of first air holes communicated with the atmosphere are uniformly formed in the periphery of the gas filtering device, an upper cover is arranged above the concave cavity and is in sealing connection with the cover body, a valve assembly is arranged at the lower part of the cover body, an air passage is formed in the valve assembly, the air passage comprises an air inlet channel and an air outlet channel, and two ends of the air outlet channel and two ends of the air inlet channel are respectively communicated with the concave cavity and the water tank. The water tank cover has the advantages of simple integral structure, fewer parts and simple assembly, reduces the failure rate of the cover and prolongs the service life of the cover.

Description

Water tank cover, expansion tank and vehicle

Technical Field

The utility model belongs to the technical field of new energy automobile cooling systems, and particularly relates to a water tank cover, an expansion water tank and a vehicle.

Background

The expansion water tank is used for discharging gas in the cooling system of the vehicle and correspondingly providing antifreeze fluid for the cooling system, and the pressure of the water pump is increased by increasing the pressure of the cooling system, so that the damage of cavitation of the water pump is avoided. The expansion tank cover is matched with the expansion tank to realize high-pressure exhaust and low-pressure air supplement of the expansion tank, so that the cooling system always maintains a relatively stable pressure.

The existing expansion tank cover can be used for relieving or supplementing pressure of gas in the tank, but because the relieving pressure and the supplementing pressure are realized in the same gas channel, parts in the gas channel are more, the connecting structure is complex, the assembly difficulty is high, faults occur more easily, and the stability is poor.

Disclosure of utility model

The utility model aims to provide a water tank cover, which is realized by splitting two functions of pressure relief and pressure compensation into two channels, so that the structure in the channels is simplified, and the service life of the water tank cover is prolonged.

The specific scheme comprises the following steps:

in a first aspect, the present utility model features a water tank cover comprising:

The upper part of the cover body is provided with a concave cavity;

The gas filtering device is arranged in the concave cavity, and a plurality of first air holes communicated with the atmosphere are uniformly arranged on the periphery of the gas filtering device;

The upper cover is arranged above the concave cavity and is connected with the cover body in a sealing way;

The valve assembly is arranged at the lower part of the cover body;

The valve assembly is internally provided with an air passage, the air passage comprises an air outlet channel and an air inlet channel, and both ends of the air outlet channel and both ends of the air inlet channel are respectively communicated with the concave cavity and the water tank.

Preferably, an air outlet hollow boss and an air outlet valve are arranged in the air outlet channel, the air outlet hollow boss is abutted with one end of the air outlet channel, which is communicated with the concave cavity, the air outlet valve is abutted with one end of the air outlet channel, which is communicated with the water tank, in a sealing way, and a first pressure spring is connected between the air outlet hollow boss and the air outlet valve;

the air inlet channel is internally provided with an air inlet hollow boss and an air inlet valve, the air inlet hollow boss is in butt joint with one end of the air inlet channel communicating water tank, the air inlet valve is in butt joint with one end of the air inlet channel communicating concave cavity in a sealing way, and the air inlet hollow boss is connected with a second pressure spring in the middle of the air inlet valve.

Preferably, the intake valve and the exhaust valve each include:

The valve body is of a hollow conical structure, the conical structure is surrounded by a circular bottom plate and a sealing conical surface, and the sealing conical surface is in sealing abutting joint with the air inlet channel and the air outlet channel;

The guide blocks are uniformly arranged on the circular bottom plate along the circumferential direction, and vent holes are formed between two adjacent guide blocks and the inner wall surface of the air passage;

The positioning table is arranged at one end of the circular bottom plate far away from the sealing conical surface, and is connected with the first pressure spring and the second pressure spring.

In a second aspect, the utility model discloses an expansion tank for a vehicle, which comprises a tank body, wherein a first tank body and a second tank body are arranged in the tank body, a first cover body is arranged at the top of the first tank body, and the water tank cover body is arranged at the top of the second tank body.

Preferably, the first cover includes:

a first cover body;

The ventilation cavity is arranged at the lower part of the first cover body;

The ventilation cavity is surrounded by the first cover body, the ventilation cavity bottom plate and the ventilation cavity side plate, and a first filter element is arranged in the ventilation cavity;

A plurality of ventilation holes are formed in the ventilation cavity bottom plate, and the bottom of the first filter element is arranged on the ventilation cavity bottom plate;

And a plurality of second air holes communicated with the atmosphere are uniformly arranged on the side plate of the ventilation cavity.

Preferably, the valve assembly is internally provided with a plurality of oil-gas separation channels, one end of each oil-gas separation channel is communicated with one end of each air channel far away from the concave cavity, and the other end of each oil-gas separation channel is communicated with the interior of the second box body;

the oil-gas separation channel is internally provided with oil-gas separation cotton and a through hole pressing plate, and the through hole pressing plate is arranged between the oil-gas separation cotton and the second box body and is abutted with the oil-gas separation cotton.

Preferably, the expansion water tank for the vehicle further comprises a degassing port arranged on the side part of the first tank body, the degassing port comprises a first degassing port and a second degassing port, the first degassing port is connected with a degassing end of the cooling system of the fuel-electric engine, and the second degassing port is connected with a degassing end of the accessory cooling system of the fuel-electric engine.

In a third aspect, the present utility model features a vehicle including the expansion tank for a vehicle as described above.

Compared with the prior art, the utility model has the following beneficial effects:

1. The air outlet channel of the water tank cover realizes pressure relief by arranging the air outlet hollow boss, the first pressure spring and the air outlet valve, realizes pressure compensation by arranging the air inlet hollow boss, the second pressure spring and the air inlet valve, has simple structure, reduces the consumption of parts, is simple to assemble, reduces the failure rate of the cover body, and prolongs the service life of the cover body.

2. The air inlet valve and the air outlet valve of the water tank cover have hollow conical structures, so that the air inlet valve and the air outlet valve can bear pressure accurately, the air outlet valve can open and close the air outlet channel, the pressure value of the air inlet valve when the air inlet valve opens and closes the air inlet channel is more accurate, the air inlet valve and the air outlet valve are provided with the guide blocks, the air holes are formed between the guide blocks and the inner wall surface of the air channel, the conical structures are uniformly stressed, and the springs can be uniformly stressed when deformed, so that the springs are prevented from being damaged.

3. The expansion water tank is provided with the first tank body for containing cooling liquid, is used for cooling the fuel-electric engine and accessories of the fuel-electric engine, is provided with the second tank body for containing diesel oil, is used for providing fuel oil for an independent warm air system of a cab, does not need to be provided with an independent diesel oil tank and oil tank accessories, and is easy to assemble.

Drawings

FIG. 1 is a front view of a water tank cover of the present utility model;

FIG. 2 is a top view of the water tank cover of the present utility model;

FIG. 3 is a side view of the water tank cover of the present utility model;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 5 is a B-B cross-sectional view of FIG. 3;

FIG. 6 is a C-C cross-sectional view of FIG. 3;

FIG. 7 is a cross-sectional view of the outlet and inlet valves of the water tank cover of the present utility model;

FIG. 8 is a top view of the outlet and inlet valves of the water tank cover of the present utility model;

Fig. 9 is a front view of the expansion tank of the present utility model;

Fig. 10 is a top view of the expansion tank of the present utility model;

fig. 11 is a top view of a first cover of the expansion tank of the present utility model;

fig. 12 is a cross-sectional view of a first cover of the expansion tank of the present utility model;

In the figure:

1. a water tank body; 11, a first box body; 12, a second box body and 13, a partition board;

2. The device comprises a cover assembly, a first cover, a first filter element, an inner cavity, an outer cavity, a ventilation cavity bottom plate, a second air hole and a second air hole, wherein the first cover is 21, the first filter element is 211, the inner cavity is 212, the outer cavity is 213, the ventilation cavity bottom plate is 214;

22. A water tank cover body; 221, a cover body, 222, a cavity, 2221, a first air hole, 223, a gas filtering device, 224, an upper cover, 225, a dust cap, 226, a valve assembly, 227, an air outlet channel, 228, an air inlet channel, 2271, an air outlet valve, 2272, a first pressure spring, 2273, an air outlet hollow boss, 2281, an air inlet valve, 2282, a second pressure spring, 2283, an air inlet hollow boss, 229, oil-gas separation cotton, 2291, a through hole pressure plate, 22-1, a sealing conical surface, 22-2, a circular bottom plate, 22-3, a guide block, 22-4, an air vent, and 22-5, a positioning table.

3. The device comprises a gas removal port, a first gas removal port, a second gas removal port, a 4-oil extractor, a 5-water supplementing port, a 51-first water supplementing port and a 52-second water supplementing port.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two.

It should be noted that, the directions or positional relationships indicated by the terms "front", "rear", "inner", "outer", etc. in the present utility model are based on the directions or positional relationships shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In particular, the symbols and/or numerals present in the description, if not marked in the description of the figures, are not numbered.

Example 1:

Referring to fig. 1-6, the water tank cover 22 provided by the embodiment of the application comprises a cover body 221, a concave cavity 222 arranged at the upper part of the cover body 221, a gas filtering device 223, an air passage arranged in the concave cavity 222, 6L-shaped first air holes 2221 uniformly distributed on the periphery of the gas filtering device 223 and communicated with the atmosphere, an upper cover 224 arranged above the concave cavity 222 and in sealing screw connection with the cover body 221, a valve assembly 226 in sealing screw connection with the lower part of the cover body 221, and an air passage arranged in the valve assembly 226, wherein the air passage comprises an air outlet passage 227 and an air inlet passage 228, and both ends of the air outlet passage 227 and the air inlet passage 228 are respectively communicated with the concave cavity 222 and the water tank. The air outlet channel is used for pressure relief, the air inlet channel is used for pressure compensation, the consumption of parts of the water tank cover is small, the assembly is simple, the failure rate of the cover is reduced, and the service life of the cover is prolonged.

The air outlet channel 227 is internally provided with an air outlet hollow boss 2273 and an air outlet valve 2271, the air outlet hollow boss 2273 is arranged at one end of the air outlet channel 227 communicated with the cavity 222, the air outlet valve 2271 is in sealing butt joint with one end of the air outlet channel 227 communicated with the water tank, and a first pressure spring 2272 is clamped between the air outlet hollow boss 2273 and the air outlet valve 2271;

An air inlet hollow boss 2283 and an air inlet valve 2281 are arranged in the air inlet channel 228, the air inlet hollow boss 2283 is arranged at one end of the air inlet channel 228, which is communicated with the water tank, the air inlet valve 2281 is in sealing butt joint with one end of the air inlet channel 228, which is communicated with the concave cavity 222, and a second pressure spring 2282 is clamped between the air inlet hollow boss 2283 and the air inlet valve 2281. The components arranged in the air inlet channel and the air outlet channel are the same, and the difference is the installation direction and the elastic parameters of the first pressure spring 2272 and the second pressure spring 2282, so that the types of parts are reduced, and the production, the assembly and the maintenance are convenient.

Referring to fig. 7 and 8, each of the intake valve 2281 and the exhaust valve 2271 includes:

the valve body is of a hollow conical structure, the conical structure is surrounded by a circular bottom plate 22-2 and a sealing conical surface 22-1, and the sealing conical surface 22-1 is in sealing contact with an air inlet channel 228 and an air outlet channel 227;

The guide blocks 22-3 are arranged in number, 6 guide blocks 22-3 are uniformly arranged on the round bottom plate 22-2 along the circumferential direction, vent holes 22-4 are formed between two adjacent guide blocks 22-3 and the inner wall surface of the air channel, the guide blocks 22-3 and the vent holes 22-4 enable gas to uniformly flow through the air inlet valve and the air outlet valve, and the first pressure spring 2272 and the second pressure spring 2282 are ensured to be uniformly stressed and deformed, so that the air inlet valve and the air outlet valve are not easy to damage.

The positioning table 22-5, the positioning table 22-5 is arranged on one end of the circular bottom plate 22-2 far away from the sealing conical surface 22-1, and the positioning table 22-5 is clamped with the first pressure spring 2272 and the second pressure spring 2282, so that the connection between the valve body and the pressure spring is realized.

Working principle:

When the gas pressure in the box body is equal to the set value, the air outlet valve 2271 and the air inlet valve 2281 are respectively and tightly abutted against the air outlet channel 227 and the air inlet channel 228, so that the box body is not communicated with the outside.

When the pressure of the air in the box body is lower than the set value, the pressure of the external air applied to the circular bottom plate 22-2 of the air inlet valve 2281 is higher than the pressure required by the deformation of the second pressure spring 2282, the second pressure spring 2282 is compressed to enable a gap to appear between the sealing conical surface 22-1 of the air inlet valve 2281 and the air inlet channel 228, the air inlet channel is opened, the external air flows into the air inlet channel 228 after passing through the first air hole 2221, the air filtering device 223 and the concave cavity 222, passes through the gap between the air inlet valve 2281 and the air inlet channel 228, the air vent 22-4, the gap between the second pressure spring 2282 and the inner wall of the air inlet channel and the air inlet hollow boss 2283, and then enters the box body, and when the pressure of the air in the box body reaches the set value, the air inlet valve 2281 is abutted against the air inlet channel 228 again under the action of the second pressure spring 2282, so as to close the air inlet channel 228.

When the pressure of the gas in the case is higher than the set value, the pressure of the internal gas applied to the circular bottom plate 22-2 of the gas outlet valve 2271 is higher than the pressure required by the deformation of the first pressure spring 2272, the first pressure spring 2272 is compressed to cause a gap between the sealing conical surface 22-1 of the gas outlet valve 2271 and the gas outlet channel 227, the gas outlet channel is opened, and the internal gas enters the cavity through the gap between the gas outlet valve 2271 and the gas outlet channel 227, the vent hole 22-4, the gap between the first pressure spring 2272 and the inner wall of the gas outlet channel, and the gas outlet hollow boss 2273, passes through the gas filter 223 and the first gas hole 2221, and finally is discharged to the atmosphere.

When the gas pressure in the tank reaches the set value, the gas outlet valve 2271 is again abutted against the gas outlet channel 227 under the action of the first compression spring 2272, so that the gas outlet channel 227 is closed.

Example 2:

referring to fig. 9 and 10, an expansion tank for a vehicle comprises a tank body 1 and a cover assembly 2, wherein a first tank body 11 and a second tank body 12 are arranged in the tank body 1, the cover assembly 2 comprises a first cover body 21 and a tank cover body 22, the first cover body 21 is installed on the top thread of the first tank body 11, and the tank cover body 22 is installed on the top thread of the second tank body 12. The first box 11 is used for containing cooling liquid and cooling the fuel-electric engine and accessories of the fuel-electric engine, and the second box 12 is used for containing diesel oil and providing fuel oil for an independent warm air system of the cab. The first cover 21 is used for opening and closing the first casing 11, and the water tank cover 22 is used for opening and closing the second casing 12.

Referring to fig. 11 and 12, the first cover 21 includes a first cover body, a ventilation cavity disposed at a lower portion of the first cover body, wherein the ventilation cavity is surrounded by the first cover body, a ventilation cavity bottom plate and a ventilation cavity side plate, a first filter element 211 is disposed inside the ventilation cavity, the first filter element 211 is in a cylindrical structure, an inner cavity 212 is disposed inside the first filter element, a gap between the first filter element 212 and the ventilation cavity side plate forms an outer cavity 213, a plurality of ventilation holes 2141 are disposed on the ventilation cavity bottom plate, a bottom portion of the first filter element 211 is disposed on the ventilation cavity bottom plate 214, 6 second ventilation holes 2131 communicated with the atmosphere are uniformly disposed on the ventilation cavity side plate, and impurities in the gas are filtered and removed by the first filter element when the gas flows between the inner cavity 212 and the outer cavity 213 under the action of a pressure difference between the first box and the external atmosphere.

Referring to fig. 3, 5 and 6, two L-shaped oil-gas separation channels are further provided in the valve assembly 226, one end of each oil-gas separation channel is communicated with one end of the air channel far away from the concave cavity 222, and the other end is communicated with the interior of the second box 12;

the inside oil-gas separation cotton 229 and the through-hole clamp 2291 that are equipped with of horizontal air flue section of oil-gas separation passageway, the diesel oil in the oil-gas separation cotton 229 separable oil-gas mixture, through-hole clamp 2291 are between oil-gas separation cotton 229 and second box 12 to with oil-gas separation cotton 229 butt, be equipped with the through-hole on the through-hole clamp 2291, the through-hole can make gaseous passing through.

Referring to fig. 10, an expansion tank for a vehicle further includes a degassing port 3 provided at a side portion of the first tank body 11, the degassing port 3 including a first degassing port 31 and a second degassing port 32, the first degassing port 31 being connected to a degassing end of a cooling system of the combustion engine, and the second degassing port 32 being connected to a degassing end of an accessory cooling system of the combustion engine. Air in the cooling system of the fuel-electric engine and the cooling system of the accessory of the fuel-electric engine can enter the first box 11, and is discharged after being removed of impurities by the first filter element 211 in the first cover 21.

Further, as shown in fig. 9, a partition 13 is provided between the first casing 11 and the second casing 12, and the partition 13 divides the first casing 11 and the second casing 12 into two completely independent casings.

Further, referring to fig. 9, a water supplementing port 5 is provided at the bottom of the first tank 11, the water supplementing port 5 includes a first water supplementing port 51 and a second water supplementing port 52, the first water supplementing port 51 is connected with a cooling system pipeline of the fuel-electric engine, the second water supplementing port 52 is connected with a cooling system pipeline of an accessory of the fuel-electric engine, and the water supplementing port 5 can be used for adding and supplementing liquid for the fuel-electric engine and the accessory of the fuel-electric engine.

Further, referring to fig. 9, an oil absorber 4 is installed at the upper part of the second tank 12, the oil absorber 4 is connected with an oil supply pipeline of the independent warm air system, and when the independent warm air system is started, diesel oil in the second tank 12 enters the independent warm air system through the oil absorber 4 to realize oil supply.

According to the expansion water tank for the vehicle, the first tank body for containing cooling liquid and the second tank body for containing diesel oil are integrated together, the first tank body and the second tank body are divided by the partition plate, and then the oil absorber is arranged on the oil tank, so that an independent diesel oil tank and an independent oil tank accessory are not required, and the expansion water tank is easy to assemble. In addition, the first box body is connected with the degassing end of the cooling system of the fuel electric engine and the degassing end of the cooling system of the accessory of the fuel electric engine, and air in the cooling system can enter the first box body and be discharged after impurities are removed through the first filter element 211, so that the environment is prevented from being polluted.

Example 3:

A vehicle comprises the expansion tank for the vehicle, and an independent diesel tank and an independent oil tank accessory are not required to be arranged, so that the assembly difficulty and the production cost are reduced.

The foregoing embodiments are merely for illustrating the technical solution of the present utility model, but not for limiting the same, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that modifications may be made to the technical solution described in the foregoing embodiments or equivalents may be substituted for parts of the technical features thereof, and that such modifications or substitutions do not depart from the spirit and scope of the technical solution of the embodiments of the present utility model in essence.

Claims (8)

1. A water tank cover (22), comprising:

A cover body (221), wherein a concave cavity (222) is arranged at the upper part of the cover body (221);

The gas filtering device (223) is arranged in the concave cavity (222), and a plurality of first air holes (2221) communicated with the atmosphere are uniformly arranged on the periphery of the gas filtering device (223);

The upper cover (224) is arranged above the concave cavity (222) and is connected with the cover body (221) in a sealing way;

A valve assembly (226), the valve assembly (226) being disposed at a lower portion of the cover body (221);

The valve assembly (226) is internally provided with an air passage, the air passage comprises an air outlet channel (227) and an air inlet channel (228), and two ends of the air outlet channel (227) and the air inlet channel (228) are respectively communicated with the concave cavity (222) and the water tank.

2. The tank cover (22) of claim 1, wherein,

An air outlet hollow boss (2273) and an air outlet valve (2271) are arranged in the air outlet channel (227), the air outlet hollow boss (2273) is in butt joint with one end of the air outlet channel (227) which is communicated with the concave cavity (222), the air outlet valve (2271) is in seal butt joint with one end of the air outlet channel (227) which is communicated with the water tank, and a first pressure spring (2272) is connected between the air outlet hollow boss (2273) and the air outlet valve (2271);

Be equipped with hollow boss (2283) and admission valve (2281) of admitting air in inlet channel (228), hollow boss (2283) of admitting air with the one end butt of inlet channel (228) intercommunication water tank, admission valve (2281) with inlet channel (228) intercommunication the one end sealing butt of cavity (222), hollow boss (2283) of admitting air with be connected with second pressure spring (2282) in the middle of admission valve (2281).

3. The tank cover (22) of claim 2, wherein,

The intake valve (2281) and the exhaust valve (2271) each include:

The valve body is of a hollow conical structure, the conical structure is surrounded by a circular bottom plate (22-2) and a sealing conical surface (22-1), and the sealing conical surface (22-1) is in sealing abutting joint with the air inlet channel (228) and the air outlet channel (227);

The guide blocks (22-3) are uniformly arranged on the round bottom plate (22-2) along the circumferential direction, and vent holes (22-4) are formed between two adjacent guide blocks (22-3) and the inner wall surface of the air passage;

The positioning table (22-5), the positioning table (22-5) is arranged on one end of the circular bottom plate (22-2) far away from the sealing conical surface (22-1), and the positioning table (22-5) is connected with the first pressure spring (2272) and the second pressure spring (2282).

4. The expansion tank for the vehicle is characterized by comprising a tank body (1), wherein a first tank body (11) and a second tank body (12) are arranged inside the tank body (1), a first cover body (21) is arranged at the top of the first tank body (11), and a tank cover body (22) according to any one of claims 1-3 is arranged at the top of the second tank body (12).

5. Expansion tank for vehicles according to claim 4, characterized in that said first cover (21) comprises:

a first cover body;

The ventilation cavity is arranged at the lower part of the first cover body;

The ventilation cavity is surrounded by the first cover body, the ventilation cavity bottom plate and the ventilation cavity side plate, and a first filter element (211) is arranged in the ventilation cavity;

A plurality of ventilation holes (2141) are formed in the ventilation cavity bottom plate, and the bottom of the first filter element (211) is arranged on the ventilation cavity bottom plate (214);

A plurality of second air holes (2131) communicated with the atmosphere are uniformly arranged on the ventilation cavity side plate.

6. The expansion tank for vehicles according to claim 4, wherein the valve assembly (226) is further provided with a plurality of oil-gas separation channels inside, one end of each oil-gas separation channel is communicated with one end of the air passage far away from the concave cavity (222), and the other end of each oil-gas separation channel is communicated with the inside of the second tank body (12);

The oil-gas separation channel is internally provided with oil-gas separation cotton (229) and a through hole pressing plate (2291), and the through hole pressing plate (2291) is arranged between the oil-gas separation cotton (229) and the second box body (12) and is abutted to the oil-gas separation cotton (229).

7. The expansion tank for a vehicle according to claim 4, further comprising a degassing port (3) provided at a side portion of the first tank body (11), the degassing port (3) comprising a first degassing port (31) and a second degassing port (32), the first degassing port (31) being connected to a degassing end of a cooling system of the fuel engine, and the second degassing port (32) being connected to a degassing end of an accessory cooling system of the fuel engine.

8. A vehicle comprising an expansion tank for a vehicle according to any one of claims 4-7.