Exhaust structure, thermostat assembly and vehicle

Abstract

The utility model belongs to the technical field of thermostats, and discloses an exhaust structure, a thermostat assembly and a vehicle. The exhaust structure is arranged on a thermostat shell and comprises an exhaust channel and a rolling body. The exhaust channel is arranged in the thermostat shell and communicates the interior of the thermostat shell with the cooling liquid pipeline, a first opening and a second opening are formed in the two ends of the exhaust channel in the axis direction respectively, the first opening is close to the cooling liquid pipeline, and the second opening is close to the interior of the thermostat shell and is far away from the first opening and close to the second opening in the axis direction. The diameter of the exhaust channel is gradually reduced. The rolling body is movably arranged in the exhaust channel and can roll to a first position close to the first opening under the action of gravity, and a gap for gas to pass through is formed between the rolling body and the inner wall of the exhaust channel; and the sealing cover can roll to a second position close to the second opening to block the exhaust channel. The exhaust structure can be automatically opened when cooling liquid is exhausted and can be automatically closed when the cooling liquid circulates, leakage is prevented, the mistake proofing grade is improved, and thorough exhaust is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of thermostats, in particular to an exhaust structure, a thermostat assembly and a vehicle. Background Art

[0002] The thermostat automatically adjusts the amount of water entering the radiator according to the temperature of the coolant, changes the water circulation range, and adjusts the heat dissipation capacity of the engine's cooling system to ensure that the engine can operate within the appropriate temperature range. During the operation of the engine, the coolant in the cooling system needs to be thoroughly exhausted to prevent the water temperature from being too high or local dry burning.

[0003] Therefore, the thermostat is generally provided with an exhaust structure to exhaust the gas in the coolant of the cooling system, improve the cooling effect, and ensure the normal operation of the engine. At present, the opening and closing of the exhaust structure is generally controlled by manual control, but the error prevention level of the above method is too low, and the problem of incomplete exhaust is easy to occur.

[0004] Therefore, there is an urgent need for an exhaust structure, a thermostat assembly and a vehicle to solve the above problems. Utility Model Content

[0005] According to one aspect of the utility model, the purpose is to provide an exhaust structure, which can automatically open when the coolant is exhausted and can automatically close when the coolant is circulated to prevent leakage, effectively improve the error prevention level, and ensure thorough exhaust.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The exhaust structure is arranged on the thermostat housing and includes:

[0008] An exhaust passage is provided in the thermostat housing, communicating with the interior of the thermostat housing and the coolant pipe, wherein two ends of the exhaust passage in the axial direction are respectively a first opening and a second opening, wherein the first opening is close to the coolant pipe, and the second opening is close to the interior of the thermostat housing, and the diameter of the exhaust passage gradually decreases as it moves away from the first opening and approaches the second opening in the axial direction;

[0009] A rolling body is movably arranged in the exhaust channel, and the rolling body is configured to be able to roll to a first position of the exhaust channel under the action of gravity, forming a gap with the inner wall of the exhaust channel, and the gap can allow gas to pass through, and the first position is close to the first opening; and can also roll to a second position of the exhaust channel to block the exhaust channel, and the second position is close to the second opening.

[0010] As a preferred solution of the exhaust structure provided by the utility model, the exhaust structure also includes an anti-slip plug, which is arranged at the first opening and has a ventilation hole. The aperture of the ventilation hole is smaller than the diameter of the rolling body. The rolling body can abut against the anti-slip plug, and the ventilation hole is connected to the gap between the rolling body and the inner wall of the exhaust channel.

[0011] As a preferred solution of the exhaust structure provided by the utility model, the exhaust channel is provided with a mounting section, the mounting section is in a cylindrical structure, and one end of the mounting section away from the second opening is the first opening;

[0012] The anti-dropping plug is a cylindrical structure, and the anti-dropping plug is coaxially inserted into the installation section.

[0013] The axial length of the installation section is not less than the axial length of the anti-dropout plug.

[0014] As a preferred solution of the exhaust structure provided by the utility model, an exhaust transition groove is opened along the axial direction of the anti-dropping plug, a circular arc transition is formed between the side wall of the exhaust transition groove and the bottom of the exhaust transition groove, the vent hole is opened at the bottom of the exhaust transition groove, and the exhaust transition groove is connected to the exhaust channel through the vent hole.

[0015] As a preferred solution of the exhaust structure provided by the utility model, the diameter of the notch of the exhaust transition groove is larger than the aperture of the vent hole.

[0016] As a preferred solution of the exhaust structure provided by the utility model, the geometric center position of the vent hole is located above the axial position of the anti-dropping plug in the direction of gravity.

[0017] As a preferred solution of the exhaust structure provided by the utility model, the exhaust structure further includes an airflow integration channel, the airflow integration channel is connected to the second opening and communicated with the inside of the thermostat housing, and the airflow integration channel is a cylindrical structure.

[0018] As a preferred solution of the exhaust structure provided by the utility model, an annular sealing ring is arranged along the circumference of the first opening, and the annular sealing ring is clamped between the coolant pipeline and the thermostat housing.

[0019] According to another aspect of the utility model, an object is to provide a thermostat assembly, the thermostat assembly comprising the thermostat housing and the exhaust structure as described in any one of the above schemes, the exhaust structure being arranged on the thermostat housing.

[0020] According to another aspect of the utility model, an object is to provide a vehicle, which includes an engine cooling system and a thermostat assembly as described in the above scheme, the engine cooling system includes the coolant pipe, and the thermostat assembly is arranged in the engine cooling system and selectively connected to the coolant pipe.

[0021] Beneficial effects of the utility model:

[0022] The exhaust structure provided by the utility model is arranged on the thermostat housing, and includes an exhaust channel and a rolling body. The exhaust channel is opened in the thermostat housing, connecting the interior of the thermostat housing and the coolant pipe. The two ends of the exhaust channel in the axial direction are respectively a first opening and a second opening. The first opening is close to the coolant pipe, and the second opening is close to the interior of the thermostat housing. The diameter of the exhaust channel gradually decreases away from the first opening and close to the second opening along the axial direction. In other words, the exhaust channel has a conical structure. The rolling body is movably arranged in the exhaust channel. The rolling body is configured to be able to roll to the first position of the exhaust channel under the action of gravity, and form a gap with the inner wall of the exhaust channel, and the gap can allow gas to pass through. The first position is close to the first opening; it can also roll to the second position of the exhaust channel to block the exhaust channel. The second position is close to the second opening. That is to say, when the coolant in the coolant pipe needs to be exhausted, the rolling body rolls to the first position under the action of gravity, forming a gap with the inner wall of the exhaust channel, thereby realizing automatic opening of the exhaust channel. At this time, the gas flows from the coolant pipe to the thermostat housing through the gap; when the coolant in the coolant pipe starts to circulate, the rolling body rolls to the second position under the push of water pressure, so as to tightly abut against the inner wall of the exhaust channel, thereby realizing automatic sealing of the exhaust channel, so as to prevent the coolant from leaking from the exhaust channel into the thermostat housing, thereby effectively improving the error prevention level and ensuring thorough exhaust.

[0023] The thermostat assembly provided by the utility model can exhaust the coolant and effectively prevent leakage.

[0024] The vehicle engine cooling system provided by the utility model has good coolant exhaust effect and good circulation and leakage prevention effect, which is beneficial to improving engine performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The schematic diagram of the arrangement of the exhaust structure provided by the embodiment of the utility model on the thermostat assembly Figure 1 (open state);

[0026] Figure 2 is a cross-sectional view of the exhaust structure provided by an embodiment of the utility model (open state);

[0027] Figure 3The schematic diagram of the arrangement of the exhaust structure provided by the embodiment of the utility model on the thermostat assembly Figure 2 (Closed state);

[0028] Figure 4 It is a cross-sectional view of the exhaust structure provided by the utility model (closed state).

[0029] In the figure:

[0030] 10. Thermostat housing;

[0031] 100, exhaust passage; 110, installation section;

[0032] 200, rolling element;

[0033] 300, anti-drop plug; 310, exhaust transition groove; 320, vent hole;

[0034] 400, airflow integration channel;

[0035] 500. Annular sealing ring. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] This embodiment provides an exhaust structure, a thermostat assembly and a vehicle. The vehicle includes an engine cooling system and the thermostat assembly. The engine cooling system includes the coolant pipeline, and the thermostat assembly is arranged in the engine cooling system and selectively connected to the coolant pipeline. The coolant in the coolant pipeline can be exhausted through the thermostat assembly to ensure the cooling effect of the coolant on the engine, thereby ensuring the performance of the engine of the vehicle.

[0041] Figure 1 Schematic diagram showing the arrangement of the exhaust structure provided by the embodiment of the utility model on the thermostat assembly Figure 1 (open state); Figure 2 A cross-sectional view (open state) of the exhaust structure provided by an embodiment of the utility model is shown; Figure 3 Schematic diagram showing the arrangement of the exhaust structure provided by the embodiment of the utility model on the thermostat assembly Figure 2 (Closed state); Figure 4 The cross-sectional view (closed state) of the exhaust structure provided by the present invention is shown. Figure 1 and Figure 3 The thermostat assembly provided in this embodiment includes a thermostat housing 10 and an exhaust structure provided in this embodiment. The exhaust structure is arranged on the thermostat housing 10. Since the thermostat core is installed with the thermostat housing 10 by rotating, the solution in the prior art that the exhaust structure is arranged on the thermostat core may cause the exhaust structure to be assembled at any height position of the thermostat housing 10 during the rotation of the thermostat core. If the assembly height of the exhaust structure is too low, it will cause the problem of incomplete exhaust of the coolant in the coolant pipeline, thereby reducing the cooling effect. Therefore, compared with the solution in the prior art that the exhaust structure is arranged on the thermostat core, the exhaust structure is arranged on the thermostat housing 10 to determine the relative position of the exhaust structure and the coolant pipeline, ensuring that the assembly position of the exhaust structure is at a relatively high position of the coolant pipeline in the direction of gravity, thereby ensuring the exhaust effect.

[0042] Specifically, refer to Figure 2 and Figure 4The exhaust structure includes an exhaust channel 100 and a rolling body 200. The exhaust channel 100 is opened in the thermostat housing 10 and communicates with the interior of the thermostat housing 10 and the coolant pipe. The axial direction of the exhaust channel 100 is parallel to the horizontal direction. The two ends of the exhaust channel 100 in the axial direction are respectively a first opening and a second opening. The first opening is close to the coolant pipe, and the second opening is close to the interior of the thermostat housing 10. The diameter of the exhaust channel 100 gradually decreases away from the first opening and close to the second opening along the axial direction. The rolling body 200 is movably arranged in the exhaust channel 100. The rolling body 200 is configured to be able to roll to a first position of the exhaust channel 100 under the action of gravity, and form a gap with the inner wall of the exhaust channel 100, and the gap can allow gas to pass through. The first position is close to the first opening; the rolling body 200 can also roll to a second position of the exhaust channel 100 to block the exhaust channel 100, and the second position is close to the second opening.

[0043] That is to say, the exhaust channel 100 is a conical structure, and the rolling body 200 abuts against the bottom of the inner wall of the exhaust channel 100 under the action of gravity. The bottom is inclined relative to the horizontal direction, and the height of the bottom gradually decreases along the direction of the second opening pointing to the first opening. When the coolant in the coolant pipeline is not circulated, the rolling body 200 rolls along the bottom to the first opening under the action of gravity; when the coolant in the coolant pipeline is flowing and circulating, the coolant will flow into the exhaust channel 100, generating thrust on the rolling body 200 in the exhaust channel 100, so that the rolling body 200 moves toward the second opening until the rolling body 200 abuts against the inner wall of the exhaust channel 100, thereby blocking the exhaust channel 100 to prevent the coolant from leaking to the thermostat housing 10 through the exhaust channel 100.

[0044] Specifically, continue to refer to Figure 2 and Figure 4 , the exhaust structure also includes an anti-slip plug 300. The anti-slip plug 300 is arranged at the first opening, and the axial direction of the anti-slip plug 300 is parallel to the horizontal direction. A vent hole 320 is provided at the bottom of the anti-slip plug 300 in the axial direction, and the aperture of the vent hole 320 is smaller than the diameter of the rolling body 200. The rolling body 200 can abut against the anti-slip plug 300, and the vent hole 320 is connected to the gap between the rolling body 200 and the inner wall of the exhaust channel 100. Through the above arrangement, the anti-slipping of the rolling body 200 can be achieved without affecting the ventilation of the exhaust channel 100, and the rolling body 200 can be prevented from directly slipping out of the first opening under the action of gravity.

[0045] More specifically, Figure 2 and Figure 4As shown, the exhaust channel 100 is provided with a mounting section 110, which is in a cylindrical structure, and the end of the mounting section 110 away from the second opening is the first opening. The anti-dropout plug 300 is in a cylindrical structure, and the anti-dropout plug 300 is coaxially inserted in the mounting section 110. The axial length of the mounting section 110 is not less than the axial length of the anti-dropout plug 300. Through the mounting section 110, it is possible to provide an installation space for the anti-dropout plug 300, and the inner wall of the mounting section 110 is abutted against the outer wall of the anti-dropout plug 300 to achieve stable installation of the anti-dropout plug 300.

[0046] More specifically, an exhaust transition groove 310 is provided along the axial direction of the anti-detachment plug 300. The side wall of the exhaust transition groove 310 and the bottom of the exhaust transition groove 310 are in an arc transition to prevent gas accumulation and facilitate gas diversion. The vent hole 320 is provided at the bottom of the exhaust transition groove 310, and the exhaust transition groove 310 is connected to the exhaust channel 100 through the vent hole 320. The exhaust transition groove 310 can temporarily accommodate the gas in the coolant pipeline, and then exhaust the gas through the vent hole 320, which can ensure the continuity of the exhaust and improve the exhaust effect.

[0047] As an option, the diameter of the notch of the exhaust transition groove 310 is larger than the aperture of the vent hole 320. The above arrangement facilitates the gas in the coolant pipeline to enter the exhaust transition groove 310, so as to improve the exhaust efficiency.

[0048] The flow path of the gas is the exhaust transition groove 310, the vent 320 and the gap between the rolling body 200 and the exhaust channel 100 in sequence. When the rolling body 200 abuts against the anti-dropout plug 300 under the action of gravity, the vent 320 will be partially blocked, resulting in the problem of poor gas circulation. Therefore, preferably, in this embodiment, the geometric center position of the vent 320 is located above the axial position of the anti-dropout plug 300 in the direction of gravity, that is, the vent 320 is eccentrically upward at the bottom of the exhaust transition groove 310. Through the above-mentioned arrangement, the blocking area of ​​the vent 320 by the rolling body 200 is reduced, the flow cross-sectional area of ​​the vent 320 is increased, and the smoothness of the gas flow is ensured.

[0049] As a preference, refer to Figure 1-Figure 4 The exhaust structure further includes an airflow integration channel 400, which is connected to the second opening, arranged in the horizontal direction, and communicated with the inside of the thermostat housing 10. The airflow integration channel 400 is a cylindrical structure, and its diameter is the same as the diameter of the second opening. Through the airflow integration channel 400, the gas flowing out of the exhaust channel 100 and with a relatively disordered flow direction can be integrated, so that the gas flows in the horizontal direction and flows into the thermostat housing 10, so as to improve the exhaust effect.

[0050] Continue to refer to Figure 1-Figure 4An annular sealing ring 500 is arranged along the circumference of the first opening, and the annular sealing ring 500 is sandwiched between the coolant pipe and the thermostat housing 10. The annular sealing ring 500 can form a seal at the junction of the coolant pipe and the exhaust channel 100 to prevent the coolant from leaking there.

[0051] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Exhaust structure, characterized in that, It is arranged on the thermostat housing (10) and comprises: An exhaust passage (100) is provided in the thermostat housing (10) and communicates with the interior of the thermostat housing (10) and the coolant pipe. Two ends of the exhaust passage (100) in the axial direction are respectively a first opening and a second opening. The first opening is close to the coolant pipe, and the second opening is close to the interior of the thermostat housing (10). The diameter of the exhaust passage (100) gradually decreases as it moves away from the first opening and approaches the second opening along the axial direction. A rolling body (200) is movably arranged in the exhaust channel (100), and the rolling body (200) is configured to be able to roll to a first position of the exhaust channel (100) under the action of gravity, forming a gap with the inner wall of the exhaust channel (100), wherein the gap allows gas to pass through, and the first position is close to the first opening; and can also roll to a second position of the exhaust channel (100) to block the exhaust channel (100), and the second position is close to the second opening.

2. The exhaust structure according to claim 1, characterized in that: The exhaust structure further comprises an anti-slipping plug (300), wherein the anti-slipping plug (300) is arranged at the first opening and has a vent hole (320), wherein the aperture of the vent hole (320) is smaller than the diameter of the rolling body (200), and the rolling body (200) can abut against the anti-slipping plug (300). When the rolling body (200) abuts against the anti-slipping plug (300), the vent hole (320) is connected to a gap between the rolling body (200) and an inner wall of the exhaust channel (100).

3. The exhaust structure according to claim 2, characterized in that: The exhaust passage (100) is provided with a mounting section (110), the mounting section (110) is in a cylindrical structure, and an end of the mounting section (110) away from the second opening is the first opening; The anti-dropping plug (300) is of cylindrical structure, and the anti-dropping plug (300) is coaxially inserted into the mounting section (110). The axial length of the installation section (110) is not less than the axial length of the anti-dropout plug (300).

4. The exhaust structure according to claim 2, characterized in that: An exhaust transition groove (310) is provided along the axial direction of the anti-detachment plug (300), a circular arc transition is formed between the side wall of the exhaust transition groove (310) and the groove bottom of the exhaust transition groove (310), the vent hole (320) is provided at the groove bottom of the exhaust transition groove (310), and the exhaust transition groove (310) is connected to the exhaust channel (100) via the vent hole (320).

5. The exhaust structure according to claim 4, characterized in that: The diameter of the notch of the exhaust transition groove (310) is greater than the aperture of the vent hole (320).

6. The exhaust structure according to claim 2, characterized in that: The geometric center position of the vent hole (320) is located above the axial position of the anti-dropping plug (300) in the direction of gravity.

7. The exhaust structure according to claim 1, characterized in that: The exhaust structure further comprises an airflow integration channel (400), wherein the airflow integration channel (400) is connected to the second opening and communicated with the interior of the thermostat housing (10), and the airflow integration channel (400) is a cylindrical structure.

8. The exhaust structure according to claim 1, characterized in that: An annular sealing ring (500) is arranged along the circumference of the first opening, and the annular sealing ring (500) is sandwiched between the coolant pipe and the thermostat housing (10).

9. Thermostat assembly, characterized in that: It comprises the thermostat housing (10) and the exhaust structure according to any one of claims 1 to 8, wherein the exhaust structure is arranged on the thermostat housing (10).

10. A vehicle, characterized in that The invention comprises an engine cooling system and a thermostat assembly as claimed in claim 9, wherein the engine cooling system comprises the coolant pipeline, and the thermostat assembly is arranged in the engine cooling system and selectively connected to the coolant pipeline.

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