Temperature-regulating cooling liquid circulating device

Abstract

The invention discloses a temperature adjusting cooling liquid circulating device, and belongs to the technical field of thermostat shells, the temperature adjusting cooling liquid circulating device comprises a thermostat upper shell and a thermostat lower shell, a small circulation water outlet channel is formed in the middle of the thermostat lower shell, and water inlet channels are formed in the positions, located on the two sides of the small circulation water outlet channel, of the thermostat lower shell; a lower shell cavity communicated with the water inlet channel is formed in the side, connected with the thermostat upper shell, of the thermostat lower shell, a large circulation water outlet cavity is formed in the thermostat upper shell, an upper shell cavity communicated with the large circulation water outlet cavity is formed in the side, located on the large circulation water outlet cavity, of the thermostat upper shell, and a small circulation water outlet cavity is communicated with the upper portion of the upper shell cavity. Wherein three top-through thermostats penetrating through an upper shell cavity are arranged side by side at the position, located in the upper shell cavity, of the thermostat upper shell. On the premise that the connector of the thermostat lower shell and the engine box body is not changed, the three top-through thermostats are arranged in the thermostat upper shell, and therefore installation of the large-flow thermostat shell is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of thermostat housings, and in particular relates to a temperature regulating coolant circulation device. Background Art

[0002] At present, all domestic engines are equipped with thermostats. Due to different displacement requirements and installation positions, the cooling circulation device composed of the thermostat housing and the thermostat is also different. In the prior art, the thermostat housing is used to place the thermostat, and the external pipe of the thermostat housing is connected to the engine, water pump, radiator tank and other components. The thermostat housing of our company's 1015 series and 2015 series adopts a structure of installing two small displacement thermostats, with water inlet on both sides and water return in the middle.

[0003] However, the temperature-regulating coolant circulation device composed of the thermostat housing and the thermostat cannot realize the cooling circulation of a high-power engine, and the existing thermostat housing cannot realize the installation of a high-flow top-through thermostat. Summary of the invention

[0004] In order to solve the problem that the thermostat housing in the prior art cannot be used to install a large-flow top-through thermostat, the present invention provides a temperature-regulating coolant circulation device that can realize the installation of a large-flow thermostat.

[0005] The technical solution adopted by the temperature regulating coolant circulation device of the present invention is:

[0006] A temperature-regulating coolant circulation device comprises a thermostat upper shell and a thermostat lower shell, characterized in that: a small circulation water outlet channel is provided in the middle position of the thermostat lower shell, water inlet channels are provided on both sides of the small circulation water outlet channel of the thermostat lower shell, a lower shell cavity connected to the water inlet channel is provided on the side where the thermostat lower shell is connected to the thermostat upper shell, a large circulation water outlet cavity is provided in the thermostat upper shell, and an upper shell cavity connected to the large circulation water outlet cavity is provided on one side of the thermostat upper shell located at the large circulation water outlet cavity, and the small circulation water outlet cavity is connected above the upper shell cavity; wherein, the thermostat upper shell is located at the position of the upper shell cavity and three top-through thermostats penetrating the upper shell cavity are arranged side by side.

[0007] A further improvement of the technical solution of the present invention is that the water inlet channel, the small circulation water outlet channel and the small circulation water outlet cavity are all arranged in an inverted L shape, and arc transition is adopted at the corners of each water inlet channel, small circulation water outlet channel and small circulation water outlet cavity.

[0008] A further improvement of the technical solution of the present invention is that the upper shell of the thermostat and the lower shell of the thermostat are connected by bolt sealing, the lower shell cavity of the lower shell of the thermostat is connected to the top thermostat of the upper shell of the thermostat, and the small circulation water outlet cavity of the upper shell of the thermostat is connected to the small circulation water outlet channel of the lower shell of the thermostat.

[0009] A further improvement of the technical solution of the present invention is that a sensor mounting hole is provided on the side wall of one end where the thermostat lower shell is connected to the thermostat upper shell, and a temperature sensor and a pressure sensor are sealed and mounted in the sensor mounting hole.

[0010] A further improvement of the above technical solution of the present invention is that a heating port is provided on one side of the sensor mounting hole of the thermostat lower shell.

[0011] A further improvement of the above technical solution of the present invention is that a ventilation hole is provided on one side of the lower shell of the thermostat located at the heating port.

[0012] A further improvement of the technical solution of the present invention is that all edge positions of the thermostat upper shell and the thermostat lower shell adopt arc transition.

[0013] A further improvement of the technical solution of the present invention is that a large circulation water outlet communicating with the large circulation water outlet cavity is sealed and connected to the side of the thermostat upper shell away from the thermostat lower shell through bolts.

[0014] A further improvement of the technical solution of the present invention is that the top-through thermostat located in the middle is a high-temperature top-through thermostat, and the top-through thermostats located at the two side positions are low-temperature top-through thermostats.

[0015] Due to the adoption of the above technical solution, the technical advances achieved by the present invention include:

[0016] The present invention has a thermostat arrangement in which a high-temperature top-through thermostat is installed through a mounting hole located in the middle position, and a low-temperature top-through thermostat is installed through mounting holes at both sides, which ensures that the temperature and pressure of the water inlet sides on both sides of the present invention are balanced and reduces the force impact on the thermostat; at the same time, because the present invention chooses to use a combination of high-temperature and low-temperature thermostats, due to the coolant circulation requirements of the diesel engine, three top-through thermostats are used, including two low-temperature top-through thermostats and one high-temperature top-through thermostat. The low-temperature top-through thermostat is opened earlier than the high-temperature top-through thermostat. Because water inlet channels are opened on both sides of the thermostat lower shell, when the coolant is in a large circulation, the high-temperature coolant generated when the diesel engine is running first reaches the low-temperature top-through thermostats located on both sides through the water inlet channels in the thermostat lower shell, and the low-temperature top-through thermostat is opened, thereby quickly circulating the coolant. This arrangement method reasonably utilizes the coordination of the position of the water inlet channel of the thermostat lower shell and the opening timing of the high and low temperature top-through thermostats.

[0017] At the same time, under the premise that the interface between the thermostat lower shell and the engine box remains unchanged, the present invention realizes the installation of the large-flow thermostat housing by arranging three top-through thermostats in the thermostat upper shell.

[0018] Since the thermostat in the present invention adopts a top-through thermostat, and the top-through thermostat has no auxiliary valve compared with the side-through thermostat, the resistance of the coolant in the small circulation flow can be reduced when the coolant flows in the small circulation flow in the present invention.

[0019] At the same time, all edge positions of the thermostat lower shell and the thermostat upper shell in the present invention adopt arc transition, which can reduce their own weight to a certain extent; and because the water inlet channel, small circulation water outlet channel and small circulation water outlet cavity in the present invention are all arranged in an inverted L shape, each water inlet channel, small circulation water outlet channel and small circulation water outlet cavity adopts arc transition at the corner, so when the coolant flows, the arc corner can guide the flowing coolant and reduce the resistance of the coolant when flowing.

[0020] The present invention selects to use a high-temperature thermostat and a low-temperature thermostat in combination. Compared with the prior art using thermostats of the same temperature, the present invention can improve fuel economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a temperature-adjusting coolant circulation device of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a thermostat lower shell of a temperature-regulating coolant circulation device of the present invention;

[0023] Figure 3 It is a structural schematic diagram of a thermostat upper shell of a temperature-regulating coolant circulation device of the present invention;

[0024] Figure 4 The invention discloses a thermostat upper shell of a temperature regulating coolant circulation device. Figure 3 Schematic diagram of the main structure;

[0025] Figure 5 The invention discloses a thermostat upper shell of a temperature regulating coolant circulation device. Figure 4 Schematic diagram of the cross-sectional structure at position AA.

[0026] In the attached figure: 1, thermostat lower shell; 11, small circulation water outlet channel; 12, water inlet channel; 13, lower shell cavity; 14, sensor installation hole; 15, heating port; 16, ventilation hole;

[0027] 2. Thermostat upper shell; 21. Large circulation water outlet chamber; 22. Upper shell chamber; 23. Small circulation water outlet chamber; 24. Top-through thermostat; 241. High-temperature top-through thermostat; 242. Low-temperature top-through thermostat; 25. Large circulation water outlet. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. In the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0029] First reference Figure 1 ,according to Figure 1 It can be known that the present invention comprises a thermostat lower shell 1, and one side of the thermostat lower shell 1 is sealed and connected to a thermostat upper shell 2 via bolts.

[0030] The thermostat lower shell 1 of the present invention can be referred to in the specific setting Figure 2 ,according to Figure 2 It can be seen that a small circulation water outlet channel 11 is opened in the middle position of the thermostat lower shell 1, and water inlet channels 12 are opened on both sides of the small circulation water outlet channel 11 of the thermostat lower shell 1. At the same time, a lower shell cavity 13 connected to the two water inlet channels 12 is opened inside the side where the thermostat lower shell 1 is connected to the thermostat upper shell 2.

[0031] Each of the water inlet channel 12 and the small-circulation water outlet channel 11 is arranged in an inverted L shape in specific arrangement, and the corners of each of the water inlet channel 12 and the small-circulation water outlet channel 11 are arc-shaped.

[0032] The thermostat upper shell 2 of the present invention can be referred to in the specific setting Figure 3 , Figure 4 and Figure 5 ,according to Figure 3 , Figure 4 and Figure 5 It can be seen that an upper shell cavity 22 is provided on one side of the thermostat upper shell 2 connected to the thermostat lower shell 1, a large circulation water outlet cavity 21 connected to the upper shell cavity 22 is provided on one side of the upper shell cavity 22, and a small circulation water outlet cavity 23 connected to the upper shell cavity 22 and in an inverted L shape is provided above the upper shell cavity 22, and the corner of the small circulation water outlet cavity 23 adopts an arc transition; continue to refer to Figure 4 and Figure 5 It can be seen that three top-through thermostats 24 that penetrate the upper shell cavity 22 are arranged side by side at positions corresponding to the upper shell cavity 22 in the thermostat upper shell 2, and the top-through thermostat 24 located in the middle position is a high-temperature top-through thermostat 241, and the top-through thermostats 24 located on both sides are low-temperature top-through thermostats 242.

[0033] The thermostat upper shell 2 of the present invention is sealedly connected to the thermostat lower shell 1 by bolts, while the lower shell cavity 13 is connected to the top thermostat 24, and the small circulation water outlet cavity 23 is connected to the small circulation water outlet channel 11.

[0034] Continue to refer Figure 1It can be seen that a sensor mounting hole 14 is provided on the side wall of one end where the thermostat lower shell 1 is connected to the thermostat upper shell 2, and a temperature sensor and a pressure sensor are sealed and installed in the sensor mounting hole 14; at the same time, a heating port 15 is provided on one side of the sensor mounting hole 14 of the thermostat lower shell 1, and a vent hole 16 is provided on one side of the heating port 15 of the thermostat lower shell 1.

[0035] Continue to refer Figure 1 It can be seen that the side of the thermostat upper shell 2 away from the thermostat lower shell 1 in the present invention is sealed with a large circulation water outlet 25 connected to the large circulation water outlet cavity 21 through bolts. At the same time, all edge positions of the thermostat upper shell 2 and the thermostat lower shell 1 in the present invention adopt arc transition.

[0036] The working principle of the temperature-controlled coolant circulation device of this embodiment is as follows: when the diesel engine is just running, the temperature of the diesel engine is relatively low. At this time, the top-through thermostat 24 of the present invention is in a closed state, the upper shell cavity 22 is in a closed state, and the coolant enters the thermostat housing through the water inlet channel 12 of the thermostat lower shell 1. The coolant flows through the lower shell cavity 13, the top-through thermostat 24, the small circulation water outlet cavity 23 and the small circulation water outlet channel 11 in the thermostat housing in sequence for small circulation.

[0037] When the engine temperature is high, the top-through thermostat 24 in the present invention is opened, and the opened top-through thermostat 24 closes the small circulation water outlet chamber 23 and opens the upper shell chamber 22 at the same time. The coolant enters the thermostat outer shell through the water inlet channel 12 of the thermostat lower shell 1. The coolant flows through the lower shell chamber 13, the top-through thermostat 24, the upper shell chamber 22, the large circulation water outlet chamber 21 and the large circulation water outlet 25 in the thermostat outer shell in turn for large circulation, thereby dissipating the heat of the diesel engine cooling system and controlling the operating temperature of the diesel engine coolant.

[0038] In the above embodiment, the present invention provides a temperature-regulating coolant circulation device. Under the premise that the interface between the lower shell of the thermostat and the engine case remains unchanged, three top-through thermostats are arranged in the upper shell of the thermostat, thereby realizing the installation of a large-flow thermostat housing; at the same time, since the thermostat in the present invention adopts a top-through thermostat, and the top-through thermostat has no auxiliary valve compared with the side-through thermostat, the coolant performs a small circulation flow in the present invention, which can reduce the resistance during the small circulation flow; at the same time, the present invention has a thermostat arrangement in which a high-temperature top-through thermostat is installed through the mounting hole located in the middle position, and a low-temperature top-through thermostat is installed through the mounting holes at the two side positions, which ensures that the temperature and pressure on the water inlet sides on both sides of the present invention are balanced, and reduces the force impact on the thermostat.

[0039] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A temperature-regulating coolant circulation device, comprising a thermostat upper shell (2) and a thermostat lower shell (1), characterized in that: A small circulation water outlet channel (11) is provided in the middle of the thermostat lower shell (1), water inlet channels (12) are provided on both sides of the small circulation water outlet channel (11) of the thermostat lower shell (1), a lower shell cavity (13) connected to the water inlet channel (12) is provided on the side of the thermostat lower shell (1) connected to the thermostat upper shell (2), a large circulation water outlet cavity (21) is provided in the thermostat upper shell (2), and an upper shell cavity (22) connected to the large circulation water outlet cavity (21) is provided on the side of the thermostat upper shell (2) located at the large circulation water outlet cavity (21), and the upper shell cavity (22) is connected to the small circulation water outlet cavity (23); wherein, three top-through thermostats (24) penetrating the upper shell cavity (22) are arranged side by side on the thermostat upper shell (2) at the position of the upper shell cavity (22).

2. A temperature-controlled coolant circulation device according to claim 1, characterized in that: The water inlet channel (12), the small circulation water outlet channel (11) and the small circulation water outlet chamber (23) are all arranged in an inverted L shape, and the corners of each water inlet channel (12), the small circulation water outlet channel (11) and the small circulation water outlet chamber (23) are all arc-shaped.

3. The temperature-adjusting coolant circulation device according to claim 1, characterized in that: The thermostat upper shell (2) and the thermostat lower shell (1) are sealed and connected by bolts; the lower shell cavity (13) of the thermostat lower shell (1) and the top thermostat (24) of the thermostat upper shell (2) are connected; and the small circulation water outlet cavity (23) of the thermostat upper shell (2) is connected to the small circulation water outlet channel (11) of the thermostat lower shell (1).

4. The temperature-adjusting coolant circulation device according to claim 1, characterized in that: A sensor mounting hole (14) is provided on the side wall of one end where the thermostat lower shell (1) is connected to the thermostat upper shell (2), and a temperature sensor and a pressure sensor are sealed and mounted in the sensor mounting hole (14).

5. A temperature-controlled coolant circulation device according to claim 4, characterized in that: A heating port (15) is provided on one side of the thermostat lower shell (1) located at the sensor mounting hole (14).

6. A temperature-controlled coolant circulation device according to claim 5, characterized in that: A vent hole (16) is provided on one side of the thermostat lower shell (1) located at the heating port (15).

7. A temperature-adjusting coolant circulation device according to any one of claims 1 to 6, characterized in that: All edge positions of the thermostat upper shell (2) and the thermostat lower shell (1) are arc-shaped transitions.

8. A temperature-adjusting coolant circulation device according to any one of claims 1 to 6, characterized in that: A large circulation water outlet (25) connected to the large circulation water outlet chamber (21) is provided on one side of the thermostat upper shell (2) away from the thermostat lower shell (1) through a bolt sealing connection.

9. A temperature-adjusting coolant circulation device according to any one of claims 1 to 6, characterized in that: The top-through thermostat (24) located in the middle is a high-temperature top-through thermostat (241), and the top-through thermostats (24) located at both side positions are low-temperature top-through thermostats (242).

Images