Electronic thermostat

Abstract

The utility model relates to the technical field of thermostats and discloses an electronic thermostat which comprises a shell, the shell comprises a water inlet pipe, a first water outlet pipe and a second water outlet pipe, a thermostat mechanism, a heating mechanism, a valve and an electric control mechanism are installed in an inner cavity of the shell, the thermostat mechanism is installed in the center of the inner cavity of the shell, and paraffin, a push rod and a piston are installed in an inner cavity of the thermostat mechanism. A spring and a valve are mounted on the periphery of the thermostat mechanism; the valve is mounted at the upper end of the spring; a plug is arranged at the upper end of the heating mechanism, the upper end of the plug is connected with an electric control mechanism, and a sealing piece is installed on the periphery of the heating mechanism. The paraffin wraps the bottom end of the heating mechanism, so that the heating device is in direct contact with the paraffin, the heating effect of the heating mechanism is better conducted into the paraffin, working efficiency is improved, energy is saved, the sealing piece is installed on the periphery of the heating mechanism, and the paraffin is prevented from flowing out of an inner cavity of the thermostat.

Description

Technical Field

[0001] The utility model relates to the technical field of thermostat devices, and particularly relates to an electronic thermostat. Background Technique

[0002] A thermostat is an automatic temperature control device, usually containing a temperature sensing component, which opens and closes the flow of coolant by expansion or contraction, that is, automatically adjusts the amount of water entering the radiator according to the temperature of the cooling liquid, changes the circulation range of the coolant, and adjusts the heat dissipation capacity of the cooling system. The thermostat used in the engine is mainly a wax-type thermostat, which controls the coolant circulation mode through the thermal expansion and contraction principle of the paraffin inside it. When the engine operating temperature is low (below 70°C), the thermostat automatically closes the passage to the radiator and opens the passage to the water pump. The cooling water flowing out of the water jacket directly enters the water pump through a hose and is sent back to the water jacket by the water pump for circulation. Since the cooling water does not dissipate heat through the radiator, the engine operating temperature can rise rapidly. This circulation route is called a small cycle. When the engine operating temperature is high (above 80°C), the thermostat automatically closes the passage to the water pump and opens the passage to the radiator. The cooling water flowing out of the water jacket is cooled by the radiator and then sent back to the water jacket by the water pump, improving the cooling intensity to prevent the engine from overheating. This circulation route is called a large cycle. When the engine operating temperature is between 70 and 80°C, both the large and small cycles exist, that is, part of the cooling water undergoes a large cycle, while the other part of the cooling water undergoes a small cycle. The electronic thermostat is provided with an electric heating component inside the paraffin. After the temperature is sensed by the temperature sensing component, the paraffin can be heated electrically to complete rapid and precise control.

[0003] The application number is CN202321716228.1, which discloses an electronic thermostat, including a housing, a heating core arranged inside the housing, a plug core arranged outside the housing, leads electrically connected to the heating core and the plug core, a connecting part integrally arranged on the inner wall surface of the housing to wrap the end of the heating core and the part of the lead inside the housing, an extraction part integrally arranged on the outer wall surface of the housing to wrap the part of the lead outside the housing, and a plug head integrally arranged on the outer wall surface of the housing to wrap the plug core. This electronic thermostat can minimize the volume and reduce the installation and layout space, meet the demanding installation in small spaces, and effectively avoid the influence of water vapor on the heating core and avoid the heating core from being burned out and short-circuited.

[0004] However, there are deficiencies. The installation position of the heating device in the above new structure is too high, and heat conduction is used to heat the paraffin, resulting in very low heating efficiency. This makes the working effect of the thermostat poor and unable to perform a large cycle in time, which has a greater impact on the use of the vehicle. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electronic thermostat to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to an electronic thermostat, which comprises a housing. The housing includes a water inlet pipe, a first water outlet pipe and a second water outlet pipe. A thermostat mechanism, a heating mechanism, a valve and an electric control mechanism are installed in the inner cavity of the housing. The thermostat mechanism is installed in the center of the inner cavity of the housing. Paraffin, a push rod and a piston are installed in the inner cavity of the thermostat mechanism. A spring and a valve are installed outside the thermostat mechanism. The valve is installed at the upper end of the spring; The paraffin wraps the lower end of the heating mechanism. A plug is arranged at the upper end of the heating mechanism. The upper end of the plug is connected to the electric control mechanism. A seal is installed outside the heating mechanism.

[0008] Further, the thermostat mechanism is used to control the outflow direction of the water inlet pipe. The water inlet pipe is arranged at the lower right of the thermostat mechanism. The first water outlet pipe is arranged directly below the thermostat mechanism. The second water outlet pipe is arranged at the upper left of the thermostat mechanism. The outer diameter of the bottom end of the thermostat mechanism is equal to the inner diameter of the first water outlet pipe.

[0009] Further, paraffin is filled in the inner cavity of the thermostat mechanism. A notch is arranged at the bottom end of the paraffin to install the push rod. The bottom end of the push rod is slidably connected to the piston.

[0010] Further, the valve is slidably connected to the outside of the thermostat mechanism. The spring is welded to the lower end of the valve.

[0011] Further, the heating mechanism is slidably connected to the upper end of the inner cavity of the thermostat mechanism. The bottom end of the heating mechanism wraps the paraffin. A seal is slidably connected to the outside of the heating mechanism.

[0012] Further, a plug is welded to the top end of the heating mechanism. The plug is installed at the upper end of the thermostat mechanism. The upper end of the plug is connected in parallel to the electric control mechanism.

[0013] The utility model has the following beneficial effects:

[0014] (1) By arranging that the heating mechanism is slidably connected to the upper end of the inner cavity of the thermostat mechanism, the bottom end of the heating mechanism wraps the paraffin, and a seal is slidably connected to the outside of the heating mechanism, the bottom end of the heating mechanism wraps the paraffin, so that the heating device directly contacts the paraffin, making the heating effect of the heating mechanism better conducted to the inside of the paraffin, improving work efficiency, saving energy, and installing a seal outside the heating mechanism to prevent the paraffin from flowing out of the inner cavity of the thermostat.

[0015] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 Front view of the structure of the present invention;

[0018] Figure 2 Cross-sectional view of the structure of the present invention;

[0019] Figure 3 Schematic diagram of the heating mechanism of the structure of the present invention;

[0020] Figure 4 Schematic diagram of the thermostat mechanism of the structure of the present invention;

[0021] In the drawings, the list of components represented by each reference numeral is as follows:

[0022] In the figure: 1, outer shell; 101, water inlet pipe; 102, first water outlet pipe; 103, second water outlet pipe; 2, thermostat mechanism; 201, paraffin; 202, push rod; 203, piston; 204, spring; 3, heating mechanism; 301, plug; 4, valve; 5, seal; 6, electronic control mechanism. Detailed implementation manners

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] Please refer to Figure 1 - Figure 4 As shown, the present invention is an electronic thermostat, including an outer shell 1. The outer shell 1 includes a water inlet pipe 101, a first water outlet pipe 102 and a second water outlet pipe 103. A thermostat mechanism 2, a heating mechanism 3, a valve 4 and an electronic control mechanism 6 are installed in the inner cavity of the outer shell 1. The thermostat mechanism 2 is installed in the center of the inner cavity of the outer shell 1. Paraffin 201, a push rod 202 and a piston 203 are installed in the inner cavity of the thermostat mechanism 2. A spring 204 and a valve 4 are installed outside the thermostat mechanism 2. The valve 4 is installed at the upper end of the spring 204; the paraffin 201 wraps the lower end of the heating mechanism 3. A plug 301 is provided at the upper end of the heating mechanism 3. The plug 301 is connected to the electronic control mechanism 6 at the upper end. A seal 5 is installed outside the heating mechanism 3.

[0025] The purpose of such a setting is to first install the thermostat mechanism 2 in the inner cavity of the housing 1. When working, the coolant enters the inner cavity of the housing 1 through the water inlet pipe 101 and then is discharged from the first water outlet pipe 102 for a small cycle. When the temperature is relatively high, the electric control mechanism 6 activates the heating mechanism 3, causing the heating mechanism 3 to heat the paraffin 201. The paraffin 201 expands and pushes the push rod 202, stretching the spring 204 around the thermostat mechanism 2, causing the valve 4 at the upper end of the spring 204 to move downward. As a result, the coolant can be discharged not only from the first water outlet pipe 102 but also from the second water outlet pipe 103. When the electric control mechanism 6 heats the heating mechanism 3 to the maximum degree, the bottom end of the thermostat mechanism 2 will block the first water outlet pipe 102, and the valve 4 will be fully opened, allowing the coolant to be discharged from the second water outlet pipe 103.

[0026] The thermostat mechanism 2 is used to control the outflow direction of the water inlet pipe 101. The water inlet pipe 101 is opened at the lower right of the thermostat mechanism 2, the first water outlet pipe 102 is opened directly below the thermostat mechanism 2, the second water outlet pipe 103 is opened at the upper left of the thermostat mechanism 2, and the outer diameter of the bottom end of the thermostat mechanism 2 is equal to the inner diameter of the first water outlet pipe 102.

[0027] The purpose of such a setting is that the outer diameter of the bottom end of the thermostat mechanism 2 is equal to the inner diameter of the first water outlet pipe 102, so that the bottom end of the thermostat mechanism 2 can block the first water outlet pipe 102, preventing the coolant from being discharged from the first water outlet pipe 102.

[0028] The inner cavity of the thermostat mechanism 2 is filled with paraffin 201. A notch is opened at the bottom end of the paraffin 201 to install the push rod 202, and the bottom end of the push rod 202 is slidably connected to the piston 203.

[0029] The purpose of such a setting is that the paraffin 201 is filled in the inner cavity of the thermostat mechanism 2, so that the paraffin 201 expands after being heated, causing the push rod 202 to move outward.

[0030] The valve 4 is slidably connected to the outside of the thermostat mechanism 2, and the spring 204 is welded to the lower end of the valve 4.

[0031] The purpose of such a setting is to pull the valve 4 through the stretching effect of the spring 204, causing the valve 4 to move outward.

[0032] The heating mechanism 3 is slidably connected to the upper end of the inner cavity of the thermostat mechanism 2. The bottom end of the heating mechanism 3 wraps around the paraffin 201, and the sealing member 5 is slidably connected to the outside of the heating mechanism 3.

[0033] The purpose of such a setting is that the bottom end of the heating mechanism 3 wraps around the paraffin 201, enabling the heating device to directly contact the paraffin 201, so that the heating effect of the heating mechanism 3 can be better conducted to the inside of the paraffin 201, improving work efficiency, saving energy, and installing the sealing member 5 outside the heating mechanism 3 to prevent the paraffin 201 from flowing out of the thermostat inner cavity.

[0034] The top end of the heating mechanism 3 is welded with a plug 301. The plug 301 is installed at the upper end of the thermostat mechanism 2, and the upper end of the plug 301 is connected in parallel with the electric control mechanism 6.

[0035] The purpose of such a setting is that the electric control mechanism 6 is connected in parallel to the plug 301 at the top end of the heating mechanism 3, so that the working process of the heating mechanism 3 can be remotely controlled.

[0036] During use, first install the thermostat mechanism 2 in the inner cavity of the housing 1. When working, the coolant enters the inner cavity of the housing 1 through the water inlet pipe 101 and then is discharged from the first water outlet pipe 102 for a small cycle. When the temperature is relatively high, the electric control mechanism 6 starts the heating mechanism 3, so that the heating mechanism 3 heats the paraffin 201, causing the paraffin 201 to expand and push the push rod 202, thereby stretching the spring 204 outside the thermostat mechanism 2 and making the valve 4 at the upper end of the spring 204 move downward. As a result, the coolant can be discharged not only from the first water outlet pipe 102 but also from the second water outlet pipe 103. When the electric control mechanism 6 heats the heating mechanism 3 to the maximum extent, the bottom end of the thermostat mechanism 2 will block the first water outlet pipe 102, and the valve 4 is fully opened, allowing the coolant to be discharged from the second water outlet pipe 103.

[0037] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and variations can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An electronic thermostat, comprising a housing (1), characterized in that: The housing (1) comprises a water inlet pipe (101), a first water outlet pipe (102) and a second water outlet pipe (103); a thermostat mechanism (2), a heating mechanism (3), a valve (4) and an electric control mechanism (6) are installed in the inner cavity of the housing (1); the thermostat mechanism (2) is installed in the center of the inner cavity of the housing (1); The inner cavity of the thermostat mechanism (2) is installed with paraffin wax (201), a push rod (202) and a piston (203); the outer periphery of the thermostat mechanism (2) is installed with a spring (204) and a valve (4); the valve (4) is installed on the upper end of the spring (204); the paraffin wax (201) wraps around the lower end of the heating mechanism (3); the upper end of the heating mechanism (3) is provided with a plug (301); the upper end of the plug (301) is connected to an electric control mechanism (6); and a sealing member (5) is installed on the outer periphery of the heating mechanism (3).

2. An electronic thermostat according to claim 1, characterized in that: The thermostat mechanism (2) is used to control the outflow direction of the water inlet pipe (101); the water inlet pipe (101) is provided at the lower right of the thermostat mechanism (2); a first water outlet pipe (102) is provided directly below the thermostat mechanism (2); a second water outlet pipe (103) is provided at the upper left of the thermostat mechanism (2); and the outer diameter of the bottom end of the thermostat mechanism (2) is equal to the inner diameter of the first water outlet pipe (102).

3. The electronic thermostat according to claim 1, characterized in that: The inner cavity of the thermostat mechanism (2) is filled with paraffin wax (201), a notch is provided at the bottom end of the paraffin wax (201) for mounting a push rod (202), and the bottom end of the push rod (202) is slidably connected to a piston (203).

4. The electronic thermostat according to claim 1, characterized in that: The periphery of the thermostat mechanism (2) is slidably connected to a valve (4), and a spring (204) is welded to the lower end of the valve (4).

5. The electronic thermostat according to claim 1, characterized in that: The heating mechanism (3) is slidably connected to the upper end of the inner cavity of the thermostat mechanism (2), the bottom end of the heating mechanism (3) wraps the paraffin (201), and the periphery of the heating mechanism (3) is slidably connected to the sealing member (5).

6. The electronic thermostat according to claim 1, characterized in that: A plug (301) is welded to the top end of the heating mechanism (3), the plug (301) is mounted on the upper end of the thermostat mechanism (2), and the upper end of the plug (301) is connected in parallel to the electric control mechanism (6).

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