Wax type thermostat

Abstract

The wax type thermostat comprises a temperature sensing body, a driving assembly and a valve body, the temperature sensing body is arranged on one side of the driving assembly, the driving assembly is arranged in the valve body, the valve body comprises a valve, the valve is connected with the side, away from the temperature sensing body, of the driving assembly, and a temperature sensing groove structure is arranged on the temperature sensing body. The surface area of the temperature sensing body can be increased through the temperature sensing groove structure, the temperature sensing body can absorb or release more heat in unit time, and therefore the response speed of the wax type thermostat is increased, the valve is rapidly driven to be opened or closed through the driving assembly, and large circulation of cooling liquid is rapidly achieved. And large circulation of the cooling liquid can be quickly realized.

Description

Technical Field

[0001] The utility model belongs to the field of thermostats, and specifically relates to a wax type thermostat. Background Art

[0002] Thermostat is an important component of automobile engine. Its function is to control the opening and closing of the large and small cycles in the cooling system. The most widely used thermostat in the commercial vehicle and heavy truck industry is the wax type thermostat. The working principle of the wax thermostat is to sense the temperature of the coolant through the temperature sensor. When the temperature of the coolant rises, the paraffin will expand due to the heat. According to the principle of thermal expansion and contraction, the expansion of the paraffin will drive the push rod to move, further causing the valve to be opened and the coolant to start a large cycle. However, the response speed of the wax thermostat is related to the sensing time of the temperature sensor. The response speed is slow and it cannot guarantee the timely start of the large cycle.

[0003] To solve the above problems, patent document CN105971713A discloses a wax thermostat and a method for monitoring and controlling its working state. The first end of the wax thermostat identification rod is connected to the bottom end of the induction body housing, and the second end of the identification rod is exposed to the outside of the water pipe after passing through the water pipe; the identification rod is provided with a first identification line and a second identification line; when the wax thermostat is fully opened, the first identification line is located at the junction of the identification rod and the water pipe; when the wax thermostat is fully closed, the second identification line is located at the junction of the identification rod and the water pipe, but the above problems cannot be solved. Utility Model Content

[0004] The utility model is designed to solve the above problems, and aims to provide a wax thermostat with fast response speed and capable of quickly realizing large circulation of coolant. In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model provides a wax type thermostat, which has the following characteristics: it comprises a temperature sensing body, a driving assembly and a valve body, wherein the temperature sensing body is arranged on one side of the driving assembly, the driving assembly is arranged on the valve body, the valve body comprises a valve, the valve is connected to a side of the driving assembly away from the temperature sensing body, and a temperature sensing groove structure is arranged on the temperature sensing body.

[0006] The wax type thermostat provided by the utility model may also have such a feature that the driving assembly includes a wax bag and a push rod, a mounting groove is provided at the bottom of the wax bag, and the push rod is inserted into the mounting groove.

[0007] The wax type thermostat provided by the utility model may also have such a feature that the temperature sensing body is sleeved on the top of the wax package, and a convex ring is provided on the wax package, and the convex ring abuts against the temperature sensing body.

[0008] The wax type thermostat provided by the utility model may also have such a feature that the temperature sensing groove structure includes a plurality of temperature sensing grooves, and the temperature sensing grooves are evenly distributed on the temperature sensing body.

[0009] The wax type thermostat provided by the utility model may also have such a feature that the valve body also includes a valve shell and a valve seat, the valve is arranged at the bottom of the valve seat, the valve shell is arranged between the valve and the valve seat, the push rod is movably arranged in the valve shell, and one end of the push rod passes through the valve shell and is connected to the valve.

[0010] The wax type thermostat provided by the utility model may also have such a feature that a spring is provided between the valve housing and the wax bag.

[0011] The technical effect of the utility model is as follows: the wax type thermostat provided by the utility model includes a temperature sensor, a drive assembly and a valve body, the temperature sensor is arranged on one side of the drive assembly, the drive assembly is arranged in the valve body, the valve body includes a valve, the valve is connected to the side of the drive assembly away from the temperature sensor, and a temperature sensing groove structure is provided on the temperature sensor. The temperature sensing groove structure can increase the surface area of ​​the temperature sensor, so that the temperature sensor can absorb or release more heat per unit time, thereby improving the response speed of the wax type thermostat, so that the valve is quickly driven to open or close by the drive assembly, and a large circulation of the coolant is quickly realized.

[0012] Therefore, the wax type thermostat provided by the utility model has a fast response speed and can quickly realize a large circulation of the coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] This specification includes the following drawings, which show the following contents:

[0014] Figure 1 It is a schematic structural diagram of a wax type thermostat in the embodiment of the utility model in the front view direction;

[0015] Figure 2 It is a cross-sectional view of a wax type thermostat in the embodiment of the utility model in the direction of the front view;

[0016] Figure 3 It is a schematic diagram of the structure of the temperature sensing body in the embodiment of the utility model in the top view direction.

[0017] Markings in the figure are: 10-temperature sensing body, 11-temperature sensing tank structure, 12-temperature sensing tank, 20-driving assembly, 21-wax package, 211-installation groove, 22-push rod, 23-convex ring, 30-valve body, 31-valve, 32-valve housing, 33-valve seat, 34-spring. DETAILED DESCRIPTION

[0018] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0019] Figure 1 It is a schematic structural diagram of a wax type thermostat in the embodiment of the utility model in the front view direction; Figure 2 It is a cross-sectional view of a wax type thermostat in an embodiment of the present utility model in the direction of the front view.

[0020] like Figure 1 and Figure 2 As shown, the wax type thermostat provided by the utility model includes a temperature sensing body 10, a driving assembly 20 and a valve body 30. The temperature sensing body 10 is arranged on one side of the driving assembly 20, and the driving assembly 20 is arranged in the valve body 30. The valve body 30 includes a valve 31. The valve 31 is connected to the side of the driving assembly 20 away from the temperature sensing body 10. A temperature sensing groove structure 11 is provided on the temperature sensing body 10. The temperature sensing groove structure 11 can increase the surface area of ​​the temperature sensing body 10, so that the temperature sensing body 10 can absorb or release more heat per unit time, thereby improving the response speed of the wax type thermostat, so that the valve can be quickly driven to open or close by the driving assembly, and a large circulation of the coolant can be quickly realized.

[0021] The driving assembly 20 includes a wax bag 21 and a push rod 22. The wax bag 21 is cylindrical, and a mounting groove 211 is provided at the bottom of the wax bag 21. One end of the push rod 22 is adapted to the mounting groove 211, and the push rod 22 is inserted into the mounting groove 211. When the wax bag 21 expands due to heat or contracts due to heat release, the push rod 22 can be driven to extend and retract. The other end of the push rod 22 passes through the mounting groove 211 and is connected to the valve 31, so that the valve 31 is driven to open or close under the action of the wax bag 21 expanding due to heat or contracting due to heat release, thereby realizing a large circulation of the coolant.

[0022] The temperature sensing body 10 is sleeved on the wax bag 21 at one end away from the push rod 22. The wax bag 21 is provided with a convex ring 23. The convex ring 23 is in a circular ring shape and sleeved on the wax bag 21. The convex ring 23 abuts against the temperature sensing body 10. On the one hand, the temperature sensing body 10 can be limited to prevent the temperature sensing body 10 from falling off. On the other hand, the convex ring 23 can increase the volume of the wax bag 21 that expands due to heat under the temperature response of the temperature sensing body 10, and can increase the speed at which the push rod 22 drives the valve 31 to open, thereby further improving the response speed of the wax thermostat and further quickly realizing a large circulation of the coolant.

[0023] Figure 3 It is a schematic diagram of the structure of the temperature sensing body in the embodiment of the utility model in the top view direction.

[0024] like Figure 3As shown, the temperature sensing body 10 is in the shape of a hollow cylinder, and the temperature sensing groove structure 11 includes a plurality of temperature sensing grooves 12. The temperature sensing grooves 12 are evenly distributed on the outer peripheral surface of the temperature sensing body 10, and the temperature sensing grooves 12 are serrated in the top view direction. The temperature sensing grooves 12 can increase the surface area of ​​the temperature sensing body 10, increase the contact area between the temperature sensing body 10 and the coolant, and increase the amount of heat absorbed or released by the temperature sensing body 10 per unit time. Through heat conduction, the speed of thermal expansion or heat release contraction of the wax bag 21 is further increased, so that the wax thermostat provided by the utility model has the characteristics of rapid response, and can quickly and timely realize large circulation of the coolant.

[0025] The valve body 30 also includes a valve shell 32 and a valve seat 33. The valve 31 is arranged at the bottom of the valve seat 33. The wax bag 21 is passed through the valve seat 33. A cavity is provided between the valve 31 and the valve seat 33. The valve shell 32 is provided in the cavity and is located between the valve 31 and the valve seat 33. The push rod 22 is movably provided in the valve shell 32, and one end of the push rod 22 passes through the valve shell 32 and is connected to the valve 31. A spring 34 is provided between the valve shell 32 and the wax bag 21. The spring 34 can push the push rod 22 back during the heat release and contraction of the wax bag 21, thereby accelerating the closing speed of the valve 31 and further improving the response speed of the wax thermostat provided by the utility model.

[0026] Functions and Effects of the Embodiments

[0027] The wax type thermostat provided by the utility model includes a temperature sensing body 10, a driving component 20 and a valve body 30. The temperature sensing body 10 is arranged on one side of the driving component 20, and the driving component 20 is arranged in the valve body 30. The valve body 30 includes a valve 31. The valve 31 is connected to the side of the driving component 20 away from the temperature sensing body 10. A temperature sensing groove structure 11 is provided on the temperature sensing body 10. The temperature sensing groove structure 11 can increase the surface area of ​​the temperature sensing body 10, so that the temperature sensing body 10 can absorb or release more heat per unit time, thereby improving the response speed of the wax type thermostat, so that the valve can be quickly driven to open or close by the driving component, and a large circulation of the coolant can be quickly realized. The wax type thermostat provided by the utility model has a fast response speed and can quickly realize a large circulation of the coolant.

[0028] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A wax thermostat, characterized in that: The invention comprises a temperature sensing body (10), a driving assembly (20) and a valve body (30), wherein the temperature sensing body (10) is arranged on one side of the driving assembly (20), the driving assembly (20) is arranged in the valve body (30), the valve body (30) comprises a valve (31), the valve (31) is connected to a side of the driving assembly (20) away from the temperature sensing body (10), and a temperature sensing groove structure (11) is provided on the temperature sensing body (10).

2. The wax type thermostat according to claim 1, characterized in that: The driving assembly (20) comprises a wax bag (21) and a push rod (22); a mounting groove (211) is provided at the bottom of the wax bag (21), and the push rod (22) is inserted into the mounting groove (211).

3. The wax type thermostat according to claim 2, characterized in that: The temperature sensing body (10) is sleeved on the top of the wax package (21); a convex ring (23) is provided on the wax package (21); and the convex ring (23) abuts against the temperature sensing body (10).

4. The wax type thermostat according to claim 3, characterized in that: The temperature sensing groove structure (11) comprises a plurality of temperature sensing grooves (12), and the temperature sensing grooves (12) are evenly distributed on the temperature sensing body (10).

5. The wax type thermostat according to claim 4, characterized in that: The valve body (30) further comprises a valve housing (32) and a valve seat (33); the valve (31) is arranged at the bottom of the valve seat (33); the valve housing (32) is arranged between the valve (31) and the valve seat (33); the push rod (22) is movably arranged in the valve housing (32); one end of the push rod (22) passes through the valve housing (32) and is connected to the valve (31).

6. The wax type thermostat according to claim 5, characterized in that: A spring (34) is provided between the valve housing (32) and the wax bag (21).

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