Thermostat and housing assembly

Abstract

The utility model discloses a thermostat and a housing assembly, and belongs to the technical field of engine thermostats. The small circulation pipe connecting nozzle is installed on the thermostat housing, a screw hole is formed in a bottom plate of the thermostat housing, the upper end of the push rod is inserted into a channel of the thermostat housing, the lower end of the push rod abuts against the mortise glue valve assembly, the inductor assembly is arranged between the mortise glue valve assembly and the support, the support is fixed to the thermostat housing, and the spring is arranged on the outer side of the inductor assembly in a sleeved mode. According to the thermostat assembly, the cover shell and small circulation connector integrated thermostat assembly arrangement mode is adopted, engine integrated, compact and light-weight arrangement is achieved, meanwhile, the assembling consistency can be improved, assembling operation is more convenient and faster, cost is reduced, and meanwhile, through the integrated arrangement, the reasonable small circulation connector position and the cover shell cavity structure, the assembly efficiency is improved. And the temperature sensing sensitivity of the thermostat is improved. The device can be directly mounted on a water outlet of an engine through a bolt, so that the arrangement space is greatly reduced, and the compact design is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine thermostats, and in particular relates to a thermostat and a cover assembly. Background Art

[0002] Thermostat is an important component that controls the engine running water temperature and ensures that the engine runs at the optimal operating temperature. It has a positive contribution to improving the engine fuel economy and engine reliability. Currently, most engines on the market use a split design of thermostat, thermostat seat, and thermostat cover. There are many parts, the layout space is not compact enough, the assembly consistency is difficult to guarantee, and the cost is high. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a thermostat and housing assembly with compact structure and low cost.

[0004] The technical solution adopted by the utility model is:

[0005] A thermostat and cover assembly, including a small circulation pipe nozzle, a thermostat cover, a push rod, a mortise valve assembly, a spring, a sensor assembly and a bracket; the small circulation pipe nozzle is installed on the thermostat cover, a screw hole is arranged on the bottom plate of the thermostat cover, the upper end of the push rod is inserted into the channel of the thermostat cover, and the lower end abuts against the mortise valve assembly, the sensor assembly is arranged between the mortise valve assembly and the bracket, the bracket is fixed on the thermostat cover, and the spring is sleeved on the outside of the sensor assembly.

[0006] Compared with the prior art, the utility model has the following beneficial effects:

[0007] The utility model adopts a thermostat assembly layout form in which the cover and the small circulation interface are integrated, so as to realize the integrated, compact and lightweight layout of the engine, and at the same time can improve the assembly consistency, make the assembly operation more convenient, and improve the overall assembly consistency of the engine, thereby reducing the cost. At the same time, through the integrated layout, the reasonable small circulation interface position and the cover cavity structure, the temperature sensitivity of the thermostat is improved, and through the reasonable design structure material selection, the quality of components and the reliability of use are improved.

[0008] The utility model can be directly installed on the water outlet of the engine by three bolts, which greatly reduces the layout space and realizes a compact design. At the same time, the integrated structure reduces the number of parts and reduces the cost of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is an exploded view of the utility model;

[0010] Figure 2 It is a schematic diagram of the structure of the utility model;

[0011] Among them: 1. Small circulation pipe nozzle; 2. Thermostat cover; 3. Push rod; 4. Sealing rubber ring; 5. Mortise valve assembly; 6. Spring; 7. Sensor assembly; 8. Bracket; 9. Screw hole. DETAILED DESCRIPTION

[0012] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0013] like Figure 1 , Figure 2 As shown, the utility model provides a thermostat and cover assembly, including a small circulation pipe nozzle 1, a thermostat cover 2, a push rod 3, a sealing rubber ring 4, a mortise valve assembly 5, a spring 6, a sensor assembly 7 and a bracket 8; the small circulation pipe nozzle 1 is installed on the thermostat cover 2, a screw hole 9 is arranged on the bottom plate of the thermostat cover 2, and it is installed on the water outlet of the engine through three bolts, which greatly reduces the layout space and realizes a compact design. The upper end of the push rod 3 is inserted into the channel of the thermostat cover 2, and the lower end abuts against the mortise valve assembly 5. The sensor assembly 7 is arranged between the mortise valve assembly 5 and the bracket 8, and the bracket 8 is fixed on the thermostat cover 2. The spring 6 is sleeved on the outside of the sensor assembly 7, and a groove is provided on the bottom surface of the thermostat cover 2, and a sealing rubber ring 4 is provided in the groove.

[0014] like Figure 2 As shown, the part includes three interfaces, namely, the engine small circulation pipe nozzle 1, the engine large circulation pipe interface on the thermostat cover 2, and the screw hole 9 for connecting the flange.

[0015] The small circulation pipe nozzle 1 is a straight seam steel pipe made of 10# steel material, which is formed by pier packing and bending, and then pressed on the thermostat cover 2 by interference fit, ensuring the sealing requirement.

[0016] The thermostat housing 2 is made of ADC12 lightweight aluminum alloy material, and is formed by integral casting, and then the formed blank is machined to ensure the precise size of each position.

[0017] The push rod 3 is made of SUS304 material to improve corrosion resistance, and the size requirements are met through fine machining.

[0018] The sealing rubber ring 4 is made of EPDM, which is a coolant-resistant material. It is formed by a mold and its design size meets the compression rate and filling rate design requirements to ensure the sealing requirements. At the same time, a radial convex bulge is provided on the sealing rubber ring 4 to prevent the sealing rubber ring 4 from falling off from the groove of the thermostat cover 2.

[0019] The mortise valve assembly 5 is made of SUS430 material and is of mortise type, thereby avoiding the risk of the valve falling off.

[0020] The spring 6 is made of SUS304 material to improve corrosion resistance.

[0021] The housing of the sensor assembly 7 is made of copper rod, which has good thermal conductivity, and the ratio of internal paraffin is reasonably set, so that the initial opening temperature of the thermostat is guaranteed to be 88±2°C and the full opening temperature is 100°C. The temperature sensing effect is guaranteed, and the accurate perception of the coolant temperature is achieved.

[0022] The bracket 8 is made of SUS430 material and is formed by stamping to ensure good support for the spring 6.

[0023] Eight kinds of molecular components are assembled using special tooling to ensure product consistency.

[0024] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A thermostat and housing assembly, characterized in that: The invention comprises a small circulation pipe nozzle (1), a thermostat cover (2), a push rod (3), a mortise valve assembly (5), a spring (6), a sensor assembly (7) and a bracket (8); the small circulation pipe nozzle (1) is installed on the thermostat cover (2), a screw hole (9) is arranged on the bottom plate of the thermostat cover (2), the upper end of the push rod (3) is inserted into the channel of the thermostat cover (2), and the lower end abuts against the mortise valve assembly (5), the sensor assembly (7) is arranged between the mortise valve assembly (5) and the bracket (8), the bracket (8) is fixed on the thermostat cover (2), and the spring (6) is sleeved on the outside of the sensor assembly (7).

2. A thermostat and housing assembly according to claim 1, characterized in that: A groove is provided on the bottom surface of the thermostat cover (2), a sealing rubber ring (4) is provided in the groove, and a radial convex bump is provided on the sealing rubber ring (4).

3. A thermostat and housing assembly according to claim 1, characterized in that: The small circulation pipe nozzle (1) is formed by a straight seam steel pipe through piercing and bending, and is press-fitted onto the thermostat housing (2) through interference fit.

4. A thermostat and housing assembly according to claim 1, characterized in that: The thermostat cover (2) is made of ADC12 light aluminum alloy material.

5. A thermostat and housing assembly according to claim 1, characterized in that: The push rod (3) and the spring (6) are both made of SUS304 material.

6. A thermostat and housing assembly according to claim 2, characterized in that: The sealing rubber ring (4) is made of EPDM and is provided with a radial convex bump.

7. A thermostat and housing assembly according to claim 1, characterized in that: The mortise and tenon valve assembly (5) is made of SUS430 material.

8. A thermostat and housing assembly according to claim 1, characterized in that: The housing of the sensor assembly (7) is made of copper rod.

9. A thermostat and housing assembly according to claim 1, characterized in that: The bracket (8) is made of SUS430 material and is formed by stamping.

Images