Thermostat

Abstract

The utility model relates to the technical field of engine cooling, in particular to a thermostat. In order to solve the problems that an existing thermostat is high in production cost and a cooling system of an engine is prone to being blocked due to residual aluminum skimmings in a pipeline connector, the thermostat comprises a thermostat base and a thermostat cover, the thermostat base comprises a valve seat and a pipeline connector, and the valve seat is connected with the pipeline connector. The valve seat and the pipeline connector are of an integrated structure. The thermostat cover is fixedly installed on the valve seat and communicated with a seat cavity of the valve seat through an inner cavity connector, and a first pipeline connector is arranged on the thermostat cover. According to the thermostat, the pipeline connector in the thermostat seat and the valve seat are of the integrated structure, and the problem that in the prior art, residual aluminum scraps in an aluminum pipeline connector formed through independent die casting enter a cooling system of an engine along with cooling media in a circulating mode, and consequently the cooling system is blocked can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine cooling, in particular to a thermostat. Background Art

[0002] In the existing thermostat, a plurality of pipeline connectors are arranged on the thermostat seat, and these pipeline connectors are all aluminum parts installed and fixed on the thermostat seat by bolts. Such a thermostat not only requires multiple molds to produce the pipeline connectors, but also has a cumbersome assembly process, resulting in high production costs. In addition, the pipeline connectors on the thermostat seat are aluminum parts, and the aluminum chips remaining in the processing holes are not easy to clean, and these remaining aluminum chips are easy to move with the cooling medium in the engine cooling system, resulting in blockage of the engine cooling system, affecting the refrigeration effect of the engine, and even causing high-temperature faults in the engine. Content of the Utility Model

[0003] To solve the problems of high production cost of the existing thermostat and easy blockage of the engine cooling system caused by the aluminum chips remaining in the pipeline connectors, the utility model provides a thermostat, which comprises a thermostat seat and a thermostat cover. The thermostat seat comprises a valve seat and a pipeline interface, and the valve seat and the pipeline interface are of an integral structure; the thermostat cover is installed and fixed on the valve seat and communicated with the seat cavity of the valve seat through an inner cavity interface, and a first pipeline interface is arranged on the thermostat cover. In the thermostat of the utility model, the pipeline interface in the thermostat seat and the valve seat are of an integral structure, which can effectively solve the problem that the aluminum chips remaining in the separately die-cast aluminum pipeline connectors in the prior art enter the engine cooling system with the circulation of the cooling medium, resulting in blockage of the cooling system. In addition, the thermostat seat in the thermostat of the utility model is of an integral structure. When producing the thermostat of the utility model, only the thermostat cover needs to be installed and fixed on the thermostat seat, and the assembly is simple and convenient, which can reduce the production cost of the thermostat of the utility model.

[0004] Preferably, the thermostat seat is of an injection molding structure. In this way, the thermostat seat is of an injection molding structure, and the production is simple and convenient, which can effectively reduce the production cost of the thermostat of the utility model.

[0005] Preferably, the thermostat cover is mounted and fixed to the valve seat by a first bolt, a second bolt, and a third bolt. In this way, the thermostat cover is mounted and fixed to the valve seat in the thermostat housing by the first bolt, the second bolt, and the third bolt, which is simple and convenient for installation. Moreover, the first bolt, the second bolt, and the third bolt can form a triangular structure, improving the installation stability of the thermostat cover on the thermostat housing. Further, the first bolt, the second bolt, and the third bolt are distributed in an equilateral triangle around the inner cavity interface. In this way, the installation stability of the thermostat cover on the thermostat housing can be further improved. Further preferably, the first bolt is located between the inner cavity interface of the thermostat cover and the fixed fitting, and the second bolt and the third bolt are located on both sides of the first pipeline interface. In this way, when assembling the thermostat of the present utility model, interference between the second bolt or the third bolt and the first pipeline interface can be avoided, which affects the assembly efficiency of the thermostat of the present utility model, and further reduces the production cost of the thermostat of the present utility model.

[0006] Preferably, mounting screw holes are provided on the valve seat, and the mounting screw holes are evenly distributed around the inlet of the valve seat. In this way, when mounting and fixing the thermostat of the present utility model to the fitting, it can be simply and conveniently mounted and fixed by bolts inserted into the mounting screw holes. Further, connecting columns are provided on the valve seat, and the mounting screw holes are located on the connecting columns. In this way, by providing connecting columns on the valve seat and locating the mounting screw holes on the connecting columns, the mounting stability of the mounting bolts can be improved, and the volume of the valve seat in the thermostat of the present utility model can be reduced, that is, the injection molding material required for forming the thermostat housing is reduced, the weight and production cost of the thermostat of the present utility model are reduced, and the lightweight degree of the thermostat of the present utility model is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is a schematic structural view of the thermostat of the present utility model from the first perspective;

[0008] Figure 2 is a schematic structural view of the thermostat of the present utility model from the second perspective. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0009] Next, in combination with Figure 1 and 2 the thermostat of the present utility model will be described in detail.

[0010] As shown in Figure 1 and 2As shown in the figure, the thermostat of the present utility model includes a thermostat seat 1 and a thermostat cover 2. Among them, the thermostat seat 1 includes a valve seat 11 and a pipeline interface, and the valve seat 11 and the pipeline interface are of an integral structure. The pipeline interface on the thermostat seat 1 includes a water pump outlet 12, an oil cooler inlet 13, and a cylinder head inlet 14; a valve seat inlet 111 is provided at the bottom of the valve seat 11, and the valve seat inlet 111 is arranged opposite to the cylinder head inlet 14; the water pump outlet 12 and the oil cooler inlet 13 are located on the side of the valve seat 11, and the oil cooler inlet 13 is located on the side of the water pump outlet 12. In this way, the thermostat seat 1 in the thermostat of the present utility model can be communicated with the engine cylinder block cooling pipeline through the valve seat inlet 12 on the valve seat 11, can be communicated with the water pump cooling pipeline through the water pump outlet 12, can be communicated with the oil cooler pipeline through the oil cooler inlet 13, and can be communicated with the engine cylinder head cooling pipeline through the cylinder head inlet 14. Preferably, the thermostat seat 1 is an injection molding structure. In this way, the thermostat seat 1 is of an injection molding structure, which is simple and convenient to produce, and can effectively reduce the production cost of the thermostat of the present utility model. Preferably, mounting screw holes 112 are provided on the valve seat 11, and the mounting screw holes 112 are evenly distributed around the valve seat inlet. In this way, when installing and fixing the thermostat of the present utility model to a fixed mating part (not shown in the figure), it can be installed and fixed by bolts (not shown in the figure) inserted into the mounting screw holes 112, which is simple and convenient. Preferably, connecting columns 113 are provided on the valve seat 11, and the mounting screw holes 112 are located on the connecting columns 113. In this way, by providing the connecting columns 113 on the valve seat 11 and the mounting screw holes 112 being located on the connecting columns 113, the installation stability of the mounting bolts can be improved, and the volume of the valve seat 11 in the thermostat of the present utility model can be reduced, that is, the injection molding material required for forming the thermostat seat 1 by injection molding can be reduced, the weight and production cost of the thermostat of the present utility model can be reduced, and the lightweight degree of the thermostat of the present utility model can be improved.

[0011] As Figure 1 and 2As shown, the thermostat cover 2 is installed and fixed on the valve seat 11 and communicates with the seat cavity 113 of the valve seat 11 through an inner cavity interface (not shown in the figure), and a first pipeline interface 21 communicating with the water tank cooling pipeline is provided on the thermostat cover 2. Preferably, the water pump outlet 12 in the thermostat cover 2 and the thermostat housing 1 are oppositely arranged on both sides of the valve seat 11. Preferably, the thermostat cover 2 is installed and fixed to the valve seat 11 by a first bolt (not shown in the figure), a second bolt (not shown in the figure), and a third bolt (not shown in the figure), and the first bolt is inserted into the first screw hole 22, the second bolt is inserted into the second bolt hole 23, and the third bolt is inserted into the third bolt hole 24. In this way, the thermostat cover 2 is installed and fixed to the valve seat 11 in the thermostat housing 1 by the first bolt, the second bolt, and the third bolt, and the installation is simple and convenient. Moreover, the first bolt, the second bolt, and the third bolt can form a triangular structure to improve the installation stability of the thermostat cover 2 on the thermostat housing 1. Preferably, the first bolt, the second bolt, and the third bolt are distributed in an equilateral triangle around the inner cavity interface. In this way, the installation stability of the thermostat cover 2 on the thermostat housing 1 can be further improved. Preferably, the first bolt is located between the inner cavity interface of the thermostat cover 2 and the fixed fitting, and the second bolt and the third bolt are located on both sides of the first pipeline interface 21. In this way, when assembling the thermostat of the present invention, the interference between the second bolt or the third bolt and the first pipeline interface 21 can be avoided, which affects the assembly efficiency of the thermostat of the present invention, and further reduces the production cost of the thermostat of the present invention.

[0012] In the thermostat of the present invention, the pipeline interface in the thermostat housing 1 and the valve seat 11 are of an integral structure, which can effectively solve the problem that the aluminum chips remaining in the aluminum pipeline joint formed by separate die-casting in the prior art enter the engine cooling system with the cooling medium circulation, resulting in the blockage of the cooling system. In addition, the thermostat housing 1 in the thermostat of the present invention is of an integral structure. When producing the thermostat of the present invention, it is only necessary to install and fix the thermostat cover 2 on the thermostat housing 1, and the assembly is simple and convenient, which can reduce the production cost of the thermostat of the present invention.

Claims

1. A thermostat, characterized in that, The thermostat includes a thermostat housing and a thermostat cover. The thermostat housing includes a valve seat and a pipeline interface, and the valve seat and the pipeline interface are of an integral structure. The thermostat cover is installed and fixed on the valve seat and communicates with the seat cavity of the valve seat through an inner cavity interface, and a first pipeline interface is provided on the thermostat cover.

2. The thermostat according to claim 1, characterized in that, The thermostat housing is of an injection molding structure.

3. The thermostat according to claim 1 or 2, characterized in that, The thermostat cover is installed and fixed to the valve seat by a first bolt, a second bolt and a third bolt.

4. The thermostat according to claim 3, characterized in that, The first bolt, the second bolt and the third bolt are distributed in an equilateral triangle around the inner cavity interface of the thermostat cover.

5. The thermostat according to claim 4, characterized in that, The first bolt is located between the inner cavity interface and the fixed fitting, and the second bolt and the third bolt are located on both sides of the first pipeline interface.

6. The thermostat according to claim 3, characterized in that, Mounting screw holes are provided on the valve seat, and the mounting screw holes are evenly distributed around the inlet of the valve seat.

7. The thermostat according to claim 6, characterized in that, Connecting columns are provided on the valve seat, and the mounting screw holes are located on the connecting columns.

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