CN217652823U - Thermostat is opened to two-stage, engine and vehicle - Google Patents
Thermostat is opened to two-stage, engine and vehicle Download PDFInfo
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- CN217652823U CN217652823U CN202221249356.5U CN202221249356U CN217652823U CN 217652823 U CN217652823 U CN 217652823U CN 202221249356 U CN202221249356 U CN 202221249356U CN 217652823 U CN217652823 U CN 217652823U
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Abstract
The utility model belongs to the technical field of the thermostat, in particular to a thermostat with two-stage opening, an engine and a vehicle, which comprises a valve seat and is of an integrated structure, wherein the valve seat is provided with a first matching part and a second matching part, the first matching part is circumferentially provided with a plurality of first through holes, and the second matching part is a second through hole with a matching surface; the valve core is of an integral structure and is provided with a first sealing part and a second sealing part, the first sealing part is matched with the first through hole to form a primary opening main valve, the second sealing part is matched with the matching surface to form a secondary opening main valve, and the primary opening main valve and the secondary opening main valve are sequentially opened by moving the valve core downwards; the utility model designs a two-stage opening thermostat structure, the one-stage opening resistance is large, the fluctuation of the water temperature and the water pressure of a cooling system when the thermostat is initially opened is reduced, the oil consumption is reduced, and the reliability is improved; the secondary opening resistance is small, and the system heat dissipation capacity of the thermostat after full opening is ensured.
Description
Technical Field
The utility model belongs to the technical field of the thermostat, in particular to thermostat, engine and vehicle are opened to two-stage.
Background
The thermostat is an important component of an engine cooling system, and is essentially a temperature control switch which can open or close a passage of cooling liquid to a radiator according to the temperature of the cooling liquid, and adjust the temperature of the cooling liquid of the engine so that the engine always works in an optimal temperature range.
The transverse area of a main valve of the thermostat is unchanged before and after the conventional bypass thermostat is opened, the axial area is increased by axial movement of the main valve of the thermostat, the amount of water flowing into a radiator of cooling liquid is increased, and the heat dissipation of an engine is ensured.
In order to ensure the heat dissipation capacity of the engine during large circulation, the diameter of the main valve is larger when the flow of the thermostat is increased after the thermostat is fully opened, so that a large amount of cooling liquid enters a radiator when the thermostat is initially opened, the water temperature and water pressure fluctuation of a cooling system are large, the thermostat is closed after the water temperature is suddenly reduced, and the water temperature oscillation period is long due to frequent opening and closing; the water temperature oscillation period is long, so that more heat is taken away by the engine, and particularly when the radiator is high in cooling capacity, low in ambient temperature and complex in vehicle working condition change, the water temperature fluctuation is larger, the oscillation period is longer, and the oil consumption is higher; the thermostat is frequently opened and closed, so that the pressure fluctuation of the cooling system is large, and the reliability of relevant parts of the cooling system is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a thermostat, engine and vehicle are opened to two-stage to solve among the prior art thermostat and just open a large amount of coolant liquid and get into the radiator and cause water pressure and the undulant big problem of temperature. In order to achieve the above purpose, the present invention solves the problems by the following technical solutions:
in a first aspect, the utility model provides a thermostat is opened to two-stage, include:
the valve seat is of an integral structure and is provided with a first matching part and a second matching part, a plurality of first through holes are circumferentially arranged on the first matching part, and the second matching part is a second through hole with a matching surface;
the valve core is of an integrated structure and is provided with a first sealing part and a second sealing part, the first sealing part is matched with the first through hole to form a primary opening main valve, the second sealing part is matched with the matching surface to form a secondary opening main valve, and the primary opening main valve and the secondary opening main valve are sequentially opened by moving the valve core downwards.
As a further technical solution, the first fitting portion and the second fitting portion are step-shaped, and the first sealing portion and the second sealing portion are step-shaped.
As a further technical solution, the first sealing portion is sealed in cooperation with a surface where the inlet of the first through hole is located.
As a further technical scheme, the first sealing portion is provided with a rubber sealing ring, and the rubber sealing ring is matched and sealed with the surface where the inlet of the first through hole is located.
As a further technical solution, the first sealing portion is arranged annularly.
As a further technical scheme, the rubber sealing ring is sleeved on the edge of the first sealing part.
As a further technical solution, the first through hole is a kidney-shaped hole, and the length direction of the first through hole is along the circumferential direction of the first sealing part.
As a further technical solution, the first through holes are uniformly arranged along a circumferential direction of the first fitting portion.
In a second aspect, the present invention provides an engine, comprising:
an engine body; and
the thermostat of the first aspect is mounted to the engine block.
A third aspect of the present invention provides a vehicle, comprising:
a vehicle body; and
the engine of the second aspect is mounted to the vehicle body.
Above-mentioned the utility model has the advantages as follows:
the utility model designs the structure of the two-stage opening thermostat, the one-stage opening pressure drag is large, and the water flow entering the radiator when the thermostat is initially opened is controlled after the thermostat is opened, so that the flow change of the cooling system is small at the initial opening stage of the thermostat, and the fluctuation of water pressure and water temperature is reduced; the secondary opening pressure resistance is small, and the heat dissipation capacity of the cooling system is ensured after the thermostat is fully opened; the water temperature and water pressure fluctuation of the engine are reduced, the oil consumption of the engine is reduced, the reliability of relevant parts of a cooling system is improved, and the user experience is improved.
Drawings
The accompanying drawings, which form a part of the specification, are provided to provide a further understanding of the invention, and are included to explain the illustrative embodiments and the description of the invention, and not to constitute a limitation of the invention. It will be further appreciated that the drawings are for simplicity and clarity and have not necessarily been drawn to scale. The invention will now be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
FIG. 1 is a schematic side view of a valve seat structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing the state of the thermostat during a small cycle of the engine according to the embodiment of the present invention;
FIG. 3 is a schematic diagram showing the state of the thermostat during the large and small cycle synchronization of the engine according to the embodiment of the present invention;
fig. 4 shows a schematic diagram of the state of the thermostat in the engine large cycle process in the embodiment of the present invention.
In the figure: 1. a valve seat; 11. a first mating portion; 12. a second mating portion; 13. a waist-shaped hole; 14. a mating surface; 2. a valve core; 21. a second seal portion; 22. a rubber seal ring; 23. a first seal portion; 24. an installation part; 3. a spring; 4. and an auxiliary valve.
Detailed Description
The technical solution in the exemplary embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the exemplary embodiment of the present invention.
Example 1
As shown in fig. 1 to 4, the present embodiment provides a two-stage opening thermostat, including:
the valve seat 1 is of an integral structure and is provided with a first matching part 11 and a second matching part 12, a plurality of first through holes are formed in the circumferential direction of the first matching part 11, and the second matching part 12 is a second through hole with a matching surface 14;
the valve core 2 is an integrated structure and is provided with a first sealing part 23 and a second sealing part 21, the first sealing part 23 is matched with the first through hole to form a primary opening main valve, the second sealing part 21 is matched with the matching surface 14 to form a secondary opening main valve, and the primary opening main valve and the secondary opening main valve are sequentially opened by the downward movement of the valve core 2.
And the auxiliary valve 4 is used for controlling the small circulation of the engine, and the auxiliary valve 4 is a structure in the prior art and is not described in detail herein.
In the large and small circulation synchronous process of the engine, a primary opening main valve is opened to allow a small amount of cooling liquid to enter a radiator through a first through hole of a valve seat 1; in the large-cycle process of the engine, the main valve is opened in the second-stage opening mode, all the cooling liquid enters the radiator, and the large-cycle process of the engine is carried out.
By designing a two-stage opening thermostat structure, the one-stage opening pressure resistance is large, and the water flow entering the radiator when the thermostat is initially opened is controlled after the thermostat is opened, so that the flow change of a cooling system is small in the initial opening stage of the thermostat, and the fluctuation of water pressure and water temperature is reduced; the secondary opening pressure resistance is small, and the heat dissipation capacity of the cooling system is ensured after the thermostat is fully opened; the water temperature and water pressure fluctuation of the engine are reduced, the oil consumption of the engine is reduced, the reliability of relevant parts of a cooling system is improved, and the user experience is improved.
In this embodiment, the second-stage opened main valve is a main valve structure in the prior art. As shown in fig. 1, the valve seat 1 is integrally a ring-shaped member. As shown in fig. 1 and fig. 2, it has a first matching portion 11 and a second matching portion 12, the first matching portion 11 surrounds the second matching portion 12, the first matching portion 11 and the second matching portion 12 are step-shaped, that is, the first matching portion 11 is arranged horizontally, the second matching portion 12 is arranged vertically, the second matching portion 12 surrounds to form a second through hole, and the inner wall of the second through hole is a matching surface 14. First through holes are provided in the first fitting portion 11 in the circumferential direction, which are substantially arranged around the second fitting portion 12. It should be noted that the valve seat 1 is fixed.
In the present embodiment, the valve body 1 is also an annular member having the first seal portion 23 and the second seal portion 21, and the first seal portion 23 and the second seal portion 21 are stepped. Wherein the first sealing portion 23 is arranged horizontally and the second sealing portion 21 is arranged vertically. The valve core 1 further includes a mounting portion 24, as shown in fig. 4, which is connected to the spring 3 in the thermostat, as shown in fig. 2, the specific connection manner, the structure of the mounting portion 24 and the spring 3 are the prior art, and detailed description thereof is omitted here.
The outer wall of the second sealing part 21 is in sliding sealing contact with the inner wall matching surface 14 of the second through hole, and the two parts are matched to form a secondary opening main valve.
The first sealing portion 23 is matched and sealed with the surface where the inlet of the first through hole is located, namely, the upper surface of the first sealing portion 23 is contacted with the lower surface of the first matching portion 11 to close the first through hole. In other embodiments, it can be provided that several cylinders are inserted into the first through hole to achieve sealing on the first sealing portion 23.
First sealing 23 is the annular and arranges, and the upper surface of first sealing 23 and the lower surface contact of first cooperation portion 11 in sealed process realize to the whole processing of case comparatively easily, only bend through the punching press can to not only participate in sealedly with the local surface of first sealing 23 that first through-hole is relative in sealed process, all the other surfaces have also participated in sealedly, and are favorable to the later stage cover to establish the sealing washer. It will of course be appreciated that in other embodiments, the first sealing portion 23 may be arranged in annular spaced segments, i.e. with a plurality of first sealing portions 23, each first sealing portion 23 sealing a respective one of the first through holes.
As shown in FIG. 1, the first through hole is a kidney-shaped hole 13, the length direction of which is along the circumferential direction of the first sealing part 23, and four holes are arranged in the embodiment
A waist-shaped hole 13, and the first through hole is uniform along the circumference of the first matching part 11The arrangement is favorable for uniform liquid discharge. Because there is certain requirement to the volume of going out liquid, the cross-section size of first through-hole needs to set for as required. The provision of the kidney shaped aperture 13 facilitates a reduction in the maximum radius of the first seal 23. It will be appreciated that other shapes of the pass may be used. It should be noted that, in the case of the same cross-sectional area, since the waist-shaped hole 13 is long and narrow, the maximum radius of the first sealing portion 23 can be reduced, and if other types of holes are used, such as circular holes, the maximum radius of the first sealing portion 23 needs to be increased in order to ensure sealing in the same cross-sectional area.
That is, the maximum radius of the first seal portion 23 required for ensuring sealing is smaller in the kidney-shaped hole than in the other holes in the same cross-sectional area of the hole.
The first sealing portion 23 and the first matching portion 11 are in surface contact to block the waist-shaped hole 13, the surface of the first sealing portion 23 is required to be higher, the surface of the first sealing portion is required to be smoother, and if the surface of the first sealing portion is rougher, the sealing cannot be well achieved, therefore, the first sealing portion 23 is provided with the rubber sealing ring 22, and the rubber sealing ring 22 is matched with the surface of the inlet of the first through hole to seal. Sealing is achieved by providing the first sealing portion 23 with a rubber sealing ring 22, which does not rely on its good surface quality.
In this embodiment, as shown in fig. 4, the rubber seal 22 is fitted around the edge of the first sealing portion 23. Rubber seal 22 has the mounting groove, establishes at first sealing 23 edge through the mounting groove cover, and the surface all has rubber seal about the first sealing this moment, and the installation is more convenient, and is relatively more fixed easily, can establish at first sealing 23 through its self elasticity, for traditional at first sealing 23 upper surface setting rubber seal, only can realize through sticky mode for the realization is fixed, loosens easily and takes off.
The working principle of the two-stage opening thermostat is as follows:
as shown in fig. 2, the engine small cycle process: in the engine hot-running stage, the primary opening main valve and the secondary opening main valve seal the hole of the valve seat to ensure the leakage of the engine in small cycle.
As shown in fig. 3, the engine large and small cycle synchronization process: when the temperature of the cooling liquid reaches the thermostat opening temperature, the thermostat is opened, the primary opening main valve is opened, the secondary opening main valve descends to be opened, the thermostat enters a primary opening stage, a small amount of cooling liquid enters the radiator through the valve seat waist-shaped hole, fluctuation of water temperature and water pressure in the process is reduced, and most of the cooling liquid enters small circulation through the auxiliary valve 4 to perform a synchronous process of engine large and small circulation.
As shown in fig. 4, the engine major cycle process: when the temperature of the cooling liquid reaches the full-open temperature of the thermostat, the main valve is opened at the second stage, the thermostat is completely opened, the secondary valve 4 enters the second stage opening stage, the secondary valve blocks the small circulation, the cooling liquid completely enters the radiator, the engine large circulation process is carried out, and the heat dissipation capacity of the engine is guaranteed.
Example 2
The present embodiment provides an engine including:
an engine body; and
the thermostat, as in embodiment 1, is mounted to the engine block.
Example 3
The embodiment provides a vehicle, including:
a vehicle body; and
the engine as in embodiment 2 is mounted on a vehicle body.
Although the present invention has been disclosed in the preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can use the above-mentioned method and technical contents to make possible changes and modifications to the technical solution of the present invention without departing from the spirit and scope of the present invention, therefore, any simple modification, equivalent changes and modifications made to the above embodiments by the technical substance of the present invention all belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. A two-stage opening thermostat, comprising:
the valve seat is of an integral structure and is provided with a first matching part and a second matching part, a plurality of first through holes are circumferentially arranged on the first matching part, and the second matching part is a second through hole with a matching surface;
the valve core is of an integral structure and is provided with a first sealing part and a second sealing part, the first sealing part is matched with the first through hole to form a primary opening main valve, the second sealing part is matched with the matching surface to form a secondary opening main valve, and the primary opening main valve and the secondary opening main valve are sequentially opened by moving the valve core downwards.
2. The thermostat of claim 1, wherein said first mating portion and said second mating portion are stepped, and said first sealing portion and said second sealing portion are stepped.
3. A two-stage opening thermostat according to claim 1 wherein said first sealing portion is sealingly engaged with a face of said first through-bore at the inlet thereof.
4. A two-stage opening thermostat according to claim 3 wherein the first sealing portion is provided with a rubber sealing ring which is fitted and sealed with a face of the first through-hole at which the inlet is located.
5. A two-stage opening thermostat according to claim 4 wherein said first seal is annularly disposed.
6. A two-stage opening thermostat according to claim 5 wherein said rubber seal is fitted over the edge of said first seal.
7. The two-stage opening thermostat of claim 6 wherein said first through-hole is a kidney-shaped hole having a length along a circumference of said first sealing portion.
8. A two-stage opening thermostat according to claim 1 wherein said first through holes are uniformly arranged in the circumferential direction of said first mating portion.
9. An engine, comprising:
an engine body; and
the thermostat of any one of claims 1-8 mounted to the engine block.
10. A vehicle, characterized by comprising:
a vehicle body; and
an engine as claimed in claim 9 mounted to the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221249356.5U CN217652823U (en) | 2022-05-23 | 2022-05-23 | Thermostat is opened to two-stage, engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221249356.5U CN217652823U (en) | 2022-05-23 | 2022-05-23 | Thermostat is opened to two-stage, engine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217652823U true CN217652823U (en) | 2022-10-25 |
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ID=83682537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221249356.5U Active CN217652823U (en) | 2022-05-23 | 2022-05-23 | Thermostat is opened to two-stage, engine and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217652823U (en) |
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2022
- 2022-05-23 CN CN202221249356.5U patent/CN217652823U/en active Active
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