CN208294637U - Expansion tank - Google Patents
Expansion tank Download PDFInfo
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- CN208294637U CN208294637U CN201820751368.5U CN201820751368U CN208294637U CN 208294637 U CN208294637 U CN 208294637U CN 201820751368 U CN201820751368 U CN 201820751368U CN 208294637 U CN208294637 U CN 208294637U
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- Prior art keywords
- partition
- expansion tank
- welding
- groove
- upper housing
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Abstract
The utility model belongs to automobile cooling system technical field, it is related to a kind of expansion tank, including upper housing, lower case and the partition being connected between upper housing and lower case, upper cavity is formed between upper housing and partition, lower chamber is formed between lower case and partition, multiple through-holes of connection upper cavity and lower chamber are provided on partition, partition is used to filter generated bubble when the gas-liquid mixture flowing in expansion tank.The expansion tank of the utility model, gas-liquid mixture in expansion tank is from upper cavity into lower chamber flow process, coolant liquid flow to lower chamber from upper cavity by through-hole, and the bubble generated is then difficult to enter lower chamber by multiple through-holes on partition, i.e., partition can filter generated bubble when the flowing of the gas-liquid mixture in expansion tank.It there's almost no bubble in this way, being flow in the coolant liquid of engine water pump by the outlet pipe of expansion tank, to avoid the cavitation effect of bubble that engine water pump is caused to damage, prolong its service life.
Description
Technical field
The utility model belongs to automobile cooling system technical field more particularly to a kind of expansion tank.
Background technique
Expansion tank is a kind of dress for adjusting car engine cooling system pressure, storage and compensation engine coolant
It sets, its working principle is that: after engine start, cooling system operating temperature is gradually risen, coolant liquid volume expansion, pressure liter
It is high.When the system pressure of cooling system be greater than the set value or system in vacuum degree reach setting value when, pressure that expansion tank covers
Valve or vacuum valve will be opened, to adjust the pressure of cooling system.In addition, upper water inlet coolant liquid high speed flows into expansion tank agitation
Coolant liquid in expansion tank generates bubble, and the gas-liquid mixture that coolant liquid and bubble form is not easy that (pressure release is discharged from relief valve
Valve can only slow down the generation of gas-liquid mixture).Coolant liquid is overflowed from engine water jacket and radiator exhaust pipe, and via expansion
The gas removing pipe of water tank flows into expansion tank, then flow to engine water pump by the outlet pipe of expansion tank again.When coolant liquid temperature
When degree reduces or consumption reduces, part coolant liquid is flow back into engine again under the action of engine water pump, is deposited to play
The effect of storage and compensation coolant liquid.
A kind of existing expansion tank, including upper housing interconnected and lower case, upper housing formed upper cavity with
It is mutually communicated between the lower chamber that lower case is formed, without buffer structure among upper housing and lower case.In gas-liquid mixture at it
During flowing from the top to the bottom in cavity, the bubble of generation is easy to flow to the water inlet of engine water pump.The cavitation effect of bubble
It will cause engine water pump damage, to influence its service life.Pass through single layer between the upper housing and lower case of expansion tank
Connection is welded and fixed, and groove is only set on the outside of the junction of upper housing and lower case, flash inside such expansion tank
It cannot sufficiently participate in welding, cause its weld strength lower.In addition, since its solder is more, being led in reversible deformation structure welding
Flash is caused to be easy to overflow groove, to influence the quality of its appearance surfaces.
Utility model content
The technical problem to be solved by the utility model is to being directed to the intracorporal gas-liquid mixture of its chamber of existing expansion tank
Generated bubble flows into engine water pump when flowing from the top to the bottom, and then the technical issues of cause engine water pump to damage, mentions
For a kind of expansion tank.
In order to solve the above technical problems, the utility model embodiment provides a kind of expansion tank, including upper housing, lower case
And it is connected to the partition between the upper housing and the lower case, upper cavity is formed between the upper housing and the partition,
Lower chamber is formed between the lower case and the partition, and the connection upper cavity and the lower chamber are provided on the partition
Multiple through-holes, generated bubble when the partition is used to filter the gas-liquid mixture flowing in the expansion tank.
According to the expansion tank of the utility model embodiment, gas-liquid mixture in expansion tank is from upper cavity to cavity of resorption
In body flow process, coolant liquid flow to lower chamber from upper cavity by the through-hole, and the bubble generated is then difficult by partition
Multiple through-holes enter lower chamber, i.e., partition can filter generated bubble when the flowing of the gas-liquid mixture in expansion tank.
It there's almost no bubble in this way, being flow in the coolant liquid of engine water pump by the outlet pipe of expansion tank, to avoid bubble
The damage of engine water pump caused by cavitation effect, extends the service life of engine water pump.
Optionally, multiple through-holes are evenly distributed on the partition.
Optionally, multiple hexagonal array arrangements of the through-hole are on the partition.
Optionally, the upper surface of the partition is provided with the first welding groove, and the lower end surface of the upper housing is provided with direction
The partition protrudes and is welded on the upper welding rib in first welding groove.
Optionally, it is respectively arranged with the first inner groovy and the first external groove inside and outside the upper welding rib, described
One inner groovy and first external groove are used to accommodate flash when the upper welding rib and first welding groove welding.
Optionally, the upper welding rib includes multiple first reversible deformation protrusions, and first inner groovy includes being formed in institute
Conduit in the first of the inside of the first reversible deformation protrusion is stated, first external groove includes being formed in the first reversible deformation protrusion
Outside the first outer conduit, the cross section of conduit and the first outer conduit is in intermediate wide and narrow both ends shape in described first
Shape.
Optionally, the second welding groove is arranged in the lower surface of the partition, and the upper surface of the lower case is provided with towards institute
Partition is stated to protrude and be welded on the lower welding rib in second welding groove.
Optionally, it is respectively arranged with the second inner groovy and the second external groove inside and outside the lower welding rib, described
Two inner groovies and second external groove are used to accommodate flash when the lower welding rib and second welding groove welding.
Optionally, the lower welding rib includes multiple second reversible deformation protrusions, and second inner groovy includes being formed in institute
Conduit in the second of the inside of the second reversible deformation protrusion is stated, second external groove includes being formed in the second reversible deformation protrusion
Outside the second outer conduit, the cross section of conduit and the second outer conduit is in intermediate wide and narrow two sides shape in described second
Shape.
Optionally, liquid injection port is provided at the top of the upper housing, the expansion tank further includes that lid is located at the fluid injection
Expansion case lid on mouth, the expansion case lid are internally provided with pressure valve and vacuum valve.
Detailed description of the invention
Fig. 1 is the explosive view for the expansion tank that an embodiment of the present invention provides；
Fig. 2 is the structural schematic diagram for the upper housing that an embodiment of the present invention provides；
Fig. 3 is the structural schematic diagram for the partition that an embodiment of the present invention provides；
Fig. 4 is the structural schematic diagram for the lower case that an embodiment of the present invention provides.
Appended drawing reference in specification is as follows:
1, upper housing；11, upper welding rib；111, the first reversible deformation protrusion；12, the first inner groovy；121, conduit in first；
13, the first external groove；131, the first outer conduit；14, liquid injection port；
2, lower case；21, lower welding rib；211, the second reversible deformation protrusion；22, the second inner groovy；221, conduit in second；
23, the second external groove；231, the second outer conduit；
3, partition；31, the first welding groove；32, the second welding groove；33, through-hole；
4, case lid is expanded.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the utility model is described in further detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
As shown in Figures 1 to 4, an embodiment of the present invention provide expansion tank, including upper housing 1, lower case 2 and
The partition 3 being connected between the upper housing 1 and the lower case 2 forms epicoele between the upper housing 1 and the partition 3
Body (not shown) forms lower chamber (not shown), sets on the partition 3 between the lower case 2 and the partition 3
The multiple through-holes 33 for being connected to the upper cavity and the lower chamber are equipped with, the partition 3 is for filtering in the expansion tank
Gas-liquid mixture generated bubble when flowing.
Expansion tank provided by the embodiment of the utility model, gas-liquid mixture in expansion tank is from upper cavity to cavity of resorption
In body flow process, coolant liquid flow to lower chamber from upper cavity by the through-hole 33, and the bubble generated is then difficult through partition 3
On multiple through-holes 33 enter lower chamber, i.e., partition 3 can filter the gas-liquid mixture in expansion tank flowing when it is generated
Bubble.It there's almost no bubble in this way, being flow in the coolant liquid of engine water pump by the outlet pipe of expansion tank, to avoid gas
The damage of engine water pump caused by the cavitation effect of bubble, extends the service life of engine water pump.
In one embodiment, as shown in figure 3, multiple through-holes 33 are evenly distributed on the partition 3, so that cooling
Liquid equably can flow into lower chamber by upper cavity.
In one embodiment, as shown in figure 3, the hexagonal array arrangement of multiple through-holes 33 is on the partition 3, with
So that multiple through-holes 33 occupy the biggish region of the partition 3, therefore, coolant liquid flows from top to bottom everywhere in partition 3
Dynamic, the filtering of bubble can carry out in bigger region.
In one embodiment, as shown in Figures 2 and 3, the upper surface of the partition 3 is provided with the first welding groove 31, described
The lower end surface of upper housing 1, which is provided with, protrudes towards the partition 3 and is welded on the upper welding rib 11 in first welding groove 31.
Being fixedly connected for partition 3 and upper housing 1 is realized in first welding groove 31 in this way, being welded on by upper welding rib 11.
In one embodiment, as shown in Fig. 2, being respectively arranged with the first inner groovy 12 and inside and outside upper welding rib 11
One external groove 13, first inner groovy 12 and first external groove 13 are for accommodating the upper welding rib 11 and described first
Flash when welding groove 31 welds.When partition 3 and upper housing 1 weld, the flash generated in the welding process can be flowed into first
In groove 12 and the first external groove 13, without overflowing the outer surface of upper housing 1, to improve the presentation quality after welding.
In addition, the weldering of upper housing 1 Yu partition 3 also can be enhanced in flash when accommodating welding in the first inner groovy 12 and the first external groove 13
Connect intensity.
In one embodiment, as shown in Fig. 2, the upper welding rib 11 includes multiple first reversible deformation protrusions 111, described the
Conduit 121 in the first of inside of one inner groovy 12 including being formed in the first reversible deformation protrusion 111, first external groove
13 include the first outer conduit 131 for being formed in the outside of the first reversible deformation protrusion 111, conduit 121 and institute in described first
The cross section of the first outer conduit 131 is stated in intermediate wide and narrow both ends shape.It is convex in the first reversible deformation when upper welding rib 11 welds
The weld flash for playing 111 position generation can be more, and conduit 121 needs the other positions than the first inner groovy 12 to have more in first
Big space accommodates weld flash, and the first outer conduit 131 needs the other positions than the first external groove 13 to have bigger space
Accommodate weld flash, thus, conduit 121 in first and the first outer conduit 131 are designed to intermediate wide and narrow both ends shape.
In one embodiment, as shown in Fig. 2, the upper housing 1 and the lower case 2 are made of transparent material, so as to
In the liquid level of coolant liquid in observation expansion tank.The upper welding rib 11 includes four the first reversible deformation protrusions 111,
The first reversible deformation protrusion 111 is spacedly distributed on the lower end surface of the upper housing 1.
In one embodiment, as shown in Figures 3 and 4, the second welding groove 32 is arranged in the lower surface of the partition 3, under described
The upper surface of shell 2, which is provided with, protrudes towards the partition 3 and is welded on the lower welding rib 21 in second welding groove 32.This
Sample is welded in the second welding groove 32 by lower welding rib 21 and realizes being fixedly connected for partition 3 and lower case 2.
In one embodiment, as shown in figure 4, being respectively arranged with the second inner groovy 22 inside and outside the lower welding rib 21
With the second external groove 23, second inner groovy 22 and second external groove 23 for accommodate the lower welding rib 21 with it is described
Flash when second welding groove 32 welds.When partition 3 and lower case 2 are welded, the flash generated in the welding process can flow into the
In two inner groovies 22 and the second external groove 23, without overflowing the outer surface of lower case 2, to improve the appearance matter after welding
Amount.In addition, lower case 2 and partition 3 also can be enhanced in flash when accommodating welding in the second inner groovy 22 and the second external groove 23
Weld strength.
In one embodiment, as shown in figure 4, the lower welding rib 21 includes multiple second reversible deformation protrusions 211, described the
Conduit 221 in the second of inside of two inner groovies 22 including being formed in the second reversible deformation protrusion 211, second external groove
23 include the second outer conduit 231 for being formed in the outside of the second reversible deformation protrusion 211, conduit 221 and institute in described second
The cross section of the second outer conduit 231 is stated in intermediate wide and narrow two sides shape.It is convex in the second reversible deformation when lower welding rib 21 welds
The weld flash for playing 211 position generation is more, and conduit 221 needs the other positions than the second inner groovy 22 to have bigger in second
Space accommodate weld flash, the second outer conduit 231 needs the other positions than the second external groove 23 to have bigger space
Weld flash is accommodated, thus, conduit 221 in second and the second outer conduit 231 are designed to the narrow shape of intermediate width and both ends.
In one embodiment, as shown in figure 4, the lower welding rib 21 includes four the second reversible deformation protrusions 211, institute
The second reversible deformation protrusion 211 is stated to be spacedly distributed on the upper surface of the lower case 2.
In one embodiment, as shown in Figures 1 and 2, the top of the upper housing 1 is provided with liquid injection port 14, the expansion
Water tank further includes the expansion case lid 4 that lid is located in the liquid injection port 14, and the expansion case lid 4 is internally provided with pressure valve (figure
In be not shown) and vacuum valve (not shown).When the coolant liquid in expansion tank is fewer, can be pushed up by upper housing 1
The liquid injection port 14 in portion is replenished in time.When the pressure of cooling system be greater than the set value or system in vacuum degree reach setting value when, it is swollen
Pressure valve or vacuum valve inside swell lid 4 will be opened, to adjust the pressure of cooling system.
Certainly, in other embodiments, according to actual welding needs, the quantity of the first reversible deformation protrusion 111 can also
Quantity with flexible setting, such as the first reversible deformation protrusion 111 is 2 or 3.
Certainly, in other embodiments, according to actual welding needs, the quantity of the second reversible deformation protrusion 211 can also
Quantity with flexible setting, such as the second reversible deformation protrusion 211 is 2 or 3.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of expansion tank, which is characterized in that including upper housing, lower case and be connected to the upper housing and the lower case
Between partition, upper cavity is formed between the upper housing and the partition, between the lower case and the partition formed under
Cavity is provided with the multiple through-holes for being connected to the upper cavity and the lower chamber on the partition, and the partition is for filtering institute
State generated bubble when the gas-liquid mixture flowing in expansion tank.
2. expansion tank according to claim 1, which is characterized in that multiple through-holes are evenly distributed on the partition
On.
3. expansion tank according to claim 1, which is characterized in that multiple hexagonal array arrangements of through-hole are in institute
It states on partition.
4. expansion tank according to claim 1, which is characterized in that the upper surface of the partition is provided with the first welding
Slot, the lower end surface of the upper housing are provided with the upper welding protruded and be welded in first welding groove towards the partition
Rib.
5. expansion tank according to claim 4, which is characterized in that be respectively arranged with inside and outside the upper welding rib
First inner groovy and the first external groove, first inner groovy and first external groove are for accommodating the upper welding rib and institute
State the flash when welding of the first welding groove.
6. expansion tank according to claim 5, which is characterized in that the upper welding rib includes that multiple first reversible deformations are convex
Rise, first inner groovy include be formed in the first reversible deformation protrusion inside first in conduit, described first outside it is recessed
Slot includes the first outer conduit for being formed in the outside of the first reversible deformation protrusion, conduit and first outer groove in described first
The cross section in road is in intermediate wide and narrow both ends shape.
7. expansion tank described in -6 any one according to claim 1, which is characterized in that the lower surface of partition setting the
Two welding grooves, the upper surface of the lower case is provided with protrude and be welded in second welding groove towards the partition under
Weld rib.
8. expansion tank according to claim 7, which is characterized in that be respectively arranged with inside and outside the lower welding rib
Second inner groovy and the second external groove, second inner groovy and second external groove are for accommodating the lower welding rib and institute
State the flash when welding of the second welding groove.
9. expansion tank according to claim 8, which is characterized in that the lower welding rib includes that multiple second reversible deformations are convex
Rise, second inner groovy include be formed in the second reversible deformation protrusion inside second in conduit, described second outside it is recessed
Slot includes the second outer conduit for being formed in the outside of the second reversible deformation protrusion, conduit and second outer groove in described second
The cross section in road is in intermediate wide and narrow two sides shape.
10. expansion tank according to claim 1, which is characterized in that be provided with liquid injection port, institute at the top of the upper housing
Stating expansion tank further includes the expansion case lid that is located in the liquid injection port of lid, the expansion case lid be internally provided with pressure valve and
Vacuum valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820751368.5U CN208294637U (en) | 2018-05-17 | 2018-05-17 | Expansion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820751368.5U CN208294637U (en) | 2018-05-17 | 2018-05-17 | Expansion tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294637U true CN208294637U (en) | 2018-12-28 |
Family
ID=64728141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820751368.5U Active CN208294637U (en) | 2018-05-17 | 2018-05-17 | Expansion tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208294637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445330A (en) * | 2022-08-23 | 2022-12-09 | 一汽解放汽车有限公司 | Expansion tank and vehicle |
-
2018
- 2018-05-17 CN CN201820751368.5U patent/CN208294637U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445330A (en) * | 2022-08-23 | 2022-12-09 | 一汽解放汽车有限公司 | Expansion tank and vehicle |
| CN115445330B (en) * | 2022-08-23 | 2024-03-19 | 一汽解放汽车有限公司 | Expansion tank and vehicle |
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