Temperature-regulating cooling liquid circulating device

Abstract

The utility model discloses a temperature adjusting cooling liquid circulating device, which belongs to the technical field of thermostat shells and comprises a thermostat upper shell and a thermostat lower shell, a small circulation water outlet channel is arranged in the middle of the thermostat lower shell, and water inlet channels are arranged on 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. According to the utility model, on the premise that the interface 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, so that the installation of the high-flow thermostat shell is realized.

Description

Technical Field

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

[0002] Currently, all domestic engines are equipped with thermostats. Depending on the displacement requirements and installation location, the cooling circuit consisting of the thermostat housing and the thermostat also varies. In existing technology, the thermostat housing houses the thermostat, and external piping connects to components such as the engine, water pump, and radiator. Our company's 1015 and 2015 series thermostat housings feature a design that accommodates two small-displacement thermostats, with water inlet on both sides and 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. Utility Model Content

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

[0005] The technical solution adopted by the temperature-regulating coolant circulation device of the utility model is:

[0006] A temperature-regulating coolant circulation device comprises a thermostat upper shell and a thermostat lower shell, and is 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 the side where the thermostat upper shell is located on 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 passing through the upper shell cavity are arranged side by side.

[0007] A further improvement of the technical solution of the present utility model 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 the corners of each water inlet channel, small circulation water outlet channel and small circulation water outlet cavity adopt arc transition.

[0008] A further improvement of the technical solution of the present utility model is that the upper shell of the thermostat and the lower shell of the thermostat are sealed and connected by bolts, 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 utility model is that a sensor mounting hole is opened on the side wall of one end where the thermostat lower shell and the thermostat upper shell are connected, 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 the side of the sensor mounting hole of the lower shell of the thermostat.

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

[0012] A further improvement of the technical solution of the present utility model 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 utility model is that a large circulation water outlet communicated 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 advancements achieved by the present invention include:

[0016] This thermostat arrangement, with a high-temperature top-through thermostat installed via a central mounting hole and low-temperature top-through thermostats installed via mounting holes on either side, ensures balanced temperature and pressure on both water inlet sides and reduces stress on the thermostats. Furthermore, because this invention utilizes a combination of high- and low-temperature thermostats, three top-through thermostats are employed to meet the coolant flow requirements of the diesel engine. Two low-temperature top-through thermostats and one high-temperature top-through thermostat are activated earlier than the high-temperature top-through thermostat. Because water inlet channels are provided on both sides of the thermostat lower shell, during the coolant's full circulation, the high-temperature coolant generated by the diesel engine first reaches the low-temperature top-through thermostats located on either side through the water inlet channels in the thermostat lower shell. These thermostats then activate, rapidly circulating the coolant. This arrangement effectively utilizes the location of the water inlet channels in the thermostat lower shell and the timing of the high and low-temperature top-through thermostats' activation.

[0017] At the same time, under the premise that the interface between the thermostat lower shell and the engine box remains unchanged, the utility model realizes the installation of a large-flow thermostat shell 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 has no auxiliary valve compared with a side-through thermostat, the resistance of the coolant during small circulation flow in the present invention can be reduced.

[0019] At the same time, all edge positions of the thermostat lower shell and the thermostat upper shell in the utility model adopt arc transition, which can reduce its own weight to a certain extent; and since the water inlet channel, small circulation water outlet channel and small circulation water outlet cavity in the utility model 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 corners, so when the coolant flows, the arc corner can guide the flowing coolant and reduce the resistance of the coolant during flow.

[0020] The utility model adopts the method of combining high-temperature and low-temperature thermostats. Compared with the prior art which adopts thermostats of the same temperature, the utility model can improve fuel economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a temperature-regulating coolant circulation device of the present utility model;

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

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

[0024] Figure 4 The utility model is a thermostat upper shell of a temperature regulating coolant circulation device Figure 3 Schematic diagram of the main structure;

[0025] Figure 5 The utility model is 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, vent 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 conjunction with specific embodiments and with reference to the accompanying drawings. In the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concept of the present invention.

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

[0030] The lower shell 1 of the thermostat in the utility model 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, 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 utility model 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. The corners of the small circulation water outlet cavity 23 are arc-shaped; continue to refer to Figure 4 and Figure 5 It can be seen that three top-through thermostats 24 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. At the same time, 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 the thermostat lower shell 1 at one end where the thermostat upper shell 2 is connected, 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 in the present invention away from the thermostat lower shell 1 is sealed and connected to the 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 in 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 opens, and the opened top-through thermostat 24 closes the small-circulation water outlet cavity 23 while opening the upper shell cavity 22. The coolant enters the thermostat housing through the water inlet channel 12 of the thermostat lower shell 1. The coolant circulates in the thermostat housing in sequence through the lower shell cavity 13, the top-through thermostat 24, the upper shell cavity 22, the large-circulation water outlet cavity 21 and the large-circulation water outlet 25, thereby performing a large circulation, thereby dissipating heat from the diesel engine cooling system and controlling the operating temperature of the diesel engine coolant.

[0038] In the above embodiment, the utility model provides a temperature-controlled 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 utility model adopts a top-through thermostat, and the top-through thermostat does not have a secondary valve compared with the side-through thermostat, the coolant performs a small circulation flow in the utility model, which can reduce the resistance during the small circulation flow; at the same time, the utility model is equipped with a high-temperature top-through thermostat through the mounting hole located in the middle position, and the mounting holes on both sides are equipped with low-temperature top-through thermostats. The thermostat arrangement ensures that the temperature and pressure on the water inlet sides on both sides of the utility model are balanced, reducing the force impact on the thermostat.

[0039] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements to the technical solution of the present invention made by a person of ordinary skill in the art without departing from the design concept of the present invention shall fall within the scope of protection of the present invention. The technical content sought to be protected by the present invention is fully set forth 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), and water inlet channels (12) are provided on both sides of the small circulation water outlet channel (11) of the thermostat lower shell (1), and a lower shell cavity (13) connected to the water inlet channel (12) is provided on the side where the thermostat lower shell (1) is connected to the thermostat upper shell (2), and 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 (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 cavity (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 cavity (23) are all arc-shaped.

3. The temperature-regulating 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-controlled 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. The temperature-regulating 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. The temperature-regulating 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-controlled 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) adopt arc transition.

8. A temperature-controlled coolant circulation device according to any one of claims 1 to 6, characterized in that: A large circulation water outlet (25) communicating with the large circulation water outlet cavity (21) is sealed and connected to the side of the thermostat upper shell (2) away from the thermostat lower shell (1) via bolts.

9. A temperature-controlled 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 sides are low-temperature top-through thermostats (242).

Images