Impurity-preventing dynamic sealing structure and heat management module

Abstract

The utility model provides an anti-impurity dynamic sealing structure and thermal management module, the dynamic sealing structure includes shell, dynamic sealing module, ball valve seal ring, oil seal structure and ball valve, the shell has channel and with the opening of channel intercommunication, the dynamic sealing module is sealed and connected to the inner wall of channel, the ball valve seal ring is sealed and connected with the ball valve seal ring, and the oil seal structure is sealed and connected with the ball valve seal ring. One side of the ball valve sealing ring is connected with the dynamic sealing module in a sealed mode, the other side of the ball valve sealing ring extends outwards from the inside of the channel to an opening, the oil sealing structure is embedded in the channel in a sealed mode and connected to an outer ring of the ball valve sealing ring in a sealed mode in the axial direction of the channel, and the oil sealing structure extends to the end face of the opening from the inside of the channel in the opening direction. And the ball valve is positioned at the opening and is in sealing contact with the ball valve sealing ring. The impurity-preventing dynamic sealing structure can effectively prevent pollutants such as silt, aluminum scraps and iron scraps in cooling water from entering the inner wall of the shell.

Description

Technical Field

[0001] The utility model relates to the field of automotive thermal management modules, in particular to an impurity-proof dynamic sealing structure and a thermal management module, specifically to a novel impurity-proof dynamic sealing structure and a thermal management module applied to a thermal management module based on an electronically controlled actuator. Background Art

[0002] The automotive thermal management module is applied to the valve of the engine liquid flow path, automatically adjusting the amount of cooling water entering the radiator according to the cooling water temperature, ensuring that the engine operates within the appropriate temperature range, saving energy, improving engine performance and enhancing engine stability.

[0003] The internal dynamic sealing structure of the thermal management module currently has the following shortcomings: during the operation of the automotive thermal management module, impurities (iron chips, aluminum chips, quartz sand) in the cooling water enter the dynamic sealing module along with the cooling water, causing jamming and wear between the ball valve sealing ring and the housing.

[0004] Therefore, it is necessary to provide a new technical solution. Utility Model Content

[0005] To solve the technical problems existing in the prior art, the present invention discloses an impurity-proof dynamic sealing structure and a thermal management module. The impurity-proof dynamic sealing structure can effectively prevent contaminants such as mud, aluminum chips, and iron chips in the cooling water from entering the dynamic sealing structure. The specific technical solution is as follows:

[0006] On the one hand, the utility model provides an anti-impurity dynamic sealing structure, which includes a housing, a dynamic sealing module, a ball valve sealing ring, an oil seal structure and a ball valve.

[0007] The housing has a channel and an opening connected to the channel. The dynamic sealing module is sealingly connected to the inner wall of the channel. One side of the ball valve sealing ring is sealingly connected to the dynamic sealing module, and the other side extends outward from the inside of the channel to the opening. Along the axial direction of the channel, the oil seal structure is sealingly embedded in the channel and sealingly connected to the outer ring of the ball valve sealing ring. The oil seal structure extends from the inside of the channel to the opening direction to the end face of the opening. The ball valve is located at the opening and in sealing contact with the ball valve sealing ring.

[0008] Furthermore, the oil seal structure extends from the inside of the channel toward the opening until it is flush with the end surface of the opening or extends beyond the end surface of the opening.

[0009] Furthermore, the oil seal structure is a rubber seal ring, and the oil seal structure is a rectangular seal ring.

[0010] Furthermore, the channel includes a first channel and a second channel arranged in sequence, the second channel is adjacent to the opening,

[0011] The dynamic sealing module is located in the first channel and is interference-connected with the inner wall of the first channel.

[0012] The ball valve sealing ring passes through the second channel from the first channel to the opening.

[0013] The oil seal structure is located in the second channel and is in interference connection with the inner wall of the second channel, and the oil seal structure is in interference connection with the outer ring of the ball valve sealing ring.

[0014] Furthermore, the dynamic sealing module is a cylindrical structure, and the outer ring of the dynamic sealing module has a protruding structure, and the protruding structure is interference-connected with the axial inner wall of the first channel.

[0015] Furthermore, the ball valve sealing ring comprises a ball valve sealing ring outer ring and a ball valve sealing ring inner ring.

[0016] The outer ring of the ball valve sealing ring is a flat structure, and the inner ring of the oil seal structure is interference-connected to the outer ring of the ball valve sealing ring.

[0017] The inner ring of the ball valve sealing ring has an inclined surface, the inclined surface is located at the opening, and the ball valve seal abuts against the inclined surface.

[0018] Furthermore, the oil seal structure comprises an oil seal outer ring, an oil seal inner ring, an oil seal upper side and an oil seal lower side,

[0019] The outer ring of the oil seal is in interference connection with the axial inner wall of the second channel.

[0020] The inner ring of the oil seal is in interference connection with the outer ring of the ball valve seal.

[0021] The upper side of the oil seal is in interference connection with the radial inner wall of the second channel, and the lower side of the oil seal faces the outside of the opening.

[0022] Furthermore, the dynamic sealing module includes a cylindrical sealing ring and a reinforced sealing ring, the reinforced sealing ring is arranged on the outer ring of the cylindrical sealing ring, the reinforced sealing ring is close to the center of the outer ring of the cylindrical sealing ring, the protruding structure is arranged on the reinforced sealing ring, and the inner ring of the ball valve sealing ring also has an inner ring upper plane and an inner ring lower plane. Along the axial direction of the channel, the inner ring upper plane seals against the outer ring of the cylindrical sealing ring, and the inner ring of the cylindrical sealing ring is flush with the inner ring lower plane.

[0023] Furthermore, the ball valve is a plastic ball valve, and the ball valve is a double ball valve or a single ball valve.

[0024] On the other hand, the present invention further provides a thermal management module, which includes the anti-impurity dynamic sealing structure described in the above aspect.

[0025] The utility model has the following beneficial effects:

[0026] (1) The anti-impurity dynamic sealing structure of the utility model retains the original dynamic sealing structure that can have a good sealing effect under high and low pressures, and at the same time adds an oil seal structure. Through the interference fit between the oil seal structure and the shell, the interference fit between the dynamic sealing module and the shell, and the interference fit between the oil seal structure and the ball valve sealing ring, it can effectively prevent pollutants such as mud and sand impurities, aluminum chips, and iron chips in the cooling water from entering the dynamic sealing module, causing the dynamic sealing module to become stuck and fail, and impurities entering the dynamic sealing structure to cause parts wear and other defects.

[0027] (2) The anti-impurity dynamic sealing structure of the utility model, wherein the housing, dynamic sealing module, ball valve sealing ring, oil seal structure and ball valve can be connected together by interference fit, has a simple overall structure, is easy to produce, has a high output and is low in cost.

[0028] (3) The impurity-proof dynamic sealing structure of the present invention exposes the oil seal structure at the opening. When the dynamic sealing structure is working, the sealing state and use state of the oil seal structure can be observed more intuitively, so that problems can be discovered and replaced in time. The replacement is also simpler and does not require the removal of the dynamic sealing module connected thereto, thereby improving the service life of the entire dynamic sealing structure.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a structural diagram of the utility model's anti-impurity dynamic sealing structure in an open state;

[0032] Figure 2 This is a structural diagram of the utility model's anti-impurity dynamic sealing structure in a closed state;

[0033] Figure 3 This is a structural diagram of the shell in the impurity-proof dynamic sealing structure of the utility model;

[0034] Figure 4 This is a structural diagram of the dynamic sealing module in the anti-impurity dynamic sealing structure of the utility model;

[0035] Figure 5 This is a structural diagram of the ball valve sealing ring in the anti-impurity dynamic sealing structure of the utility model;

[0036] Figure 6 This is a schematic structural diagram of the oil seal structure in the impurity-proof dynamic seal structure of the present invention;

[0037] Figure 7 It is a partial structural diagram of the ball valve in the anti-impurity dynamic sealing structure of the utility model.

[0038] Among them, 1-shell, 10-channel, 11-first channel, 12-second channel, 101-opening, 102-opening end face, 111-axial inner wall of the first channel, 112-radial inner wall of the first channel, 121-axial inner wall of the second channel, 122-radial inner wall of the second channel, 2-dynamic sealing module, 21-raised structure, 20-cylindrical sealing ring, 22-reinforced sealing ring, 211-installing inclined surface, 3-ball valve sealing ring, 31-outer ring of ball valve sealing ring, 32-inclined surface, 33-upper plane of inner ring, 34-lower plane of inner ring, 4-oil seal structure, 41-oil seal outer ring, 42 upper side of oil seal, 43-inner ring of oil seal, 44-lower side of oil seal, 5-ball valve, 51-spherical structure. DETAILED DESCRIPTION

[0039] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0041] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, the connection may be fixed, detachable, or integrated; it may be mechanical or electrical; it may be directly connected or indirectly connected through an intermediate medium; it may refer to internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0042] See also Figures 1 to 7 , Figure 1 This is a structural diagram of the utility model's anti-impurity dynamic sealing structure in an open state; Figure 2 This is a structural diagram of the utility model's anti-impurity dynamic sealing structure in a closed state; Figure 3 This is a structural diagram of the shell in the impurity-proof dynamic sealing structure of the utility model; Figure 4 This is a structural diagram of the dynamic sealing module in the anti-impurity dynamic sealing structure of the utility model; Figure 5 This is a structural diagram of the ball valve sealing ring in the anti-impurity dynamic sealing structure of the utility model; Figure 6 This is a schematic structural diagram of the oil seal structure in the impurity-proof dynamic seal structure of the present invention; Figure 7 It is a partial structural diagram of the ball valve in the anti-impurity dynamic sealing structure of the utility model.

[0043] The dynamic sealing structure of the utility model is a new type of anti-impurity dynamic sealing structure used in the thermal management module based on the electronically controlled actuator. Figures 1 to 3As shown, the present invention provides an anti-impurity dynamic sealing structure, which includes a housing 1, a dynamic sealing module 2, a ball valve sealing ring 3, an oil seal structure 4, and a ball valve 5. The housing 1 has a channel 10 and an opening connected to the channel 10. The dynamic sealing module 2 is sealingly connected to the inner wall of the channel 10. One side of the ball valve sealing ring 3 is sealingly connected to the dynamic sealing module 2, and the other side extends outward from the inside of the channel 10 to the opening 101. Along the axial direction of the channel 10, the oil seal structure 4 is sealingly embedded in the channel 10 and sealingly connected to the outer ring of the ball valve sealing ring 3. The oil seal structure 4 extends from the inside of the channel toward the opening to the opening end face 102. The ball valve 5 is located at the opening and is in sealing contact with the ball valve sealing ring 3. The present invention adds an oil seal structure 4 to the opening of the housing 1, installs the dynamic seal module 2, ball valve seal ring 3, and oil seal structure 4 into the housing, and seals the oil seal structure 4 with the housing, sealing the dynamic seal module 2 with the housing, thereby forming two seals that work together with the housing seal structure. Simultaneously, the oil seal structure 4 and the ball valve seal ring 3 are sealed, thereby overcoming the drawbacks of prior art technologies where contaminants such as silt, aluminum, and iron filings in the cooling water enter the dynamic seal structure, causing it to become stuck and fail, and causing wear on the housing and ball valve seal ring. Furthermore, the oil seal structure 4 extends from the channel toward the opening 101 until it is flush with or extends beyond the opening end face 102. By exposing the oil seal structure at the opening, the sealing and operating status of the oil seal structure can be more intuitively observed during operation, allowing for timely identification and replacement of any problems. Replacement is also simpler and does not require removal of the connected dynamic seal module, thereby extending the service life of the entire dynamic seal structure.

[0044] Furthermore, the channel includes a first channel and a second channel arranged in sequence, and the second channel is adjacent to the opening. In the present invention, the inner diameter of the first channel is larger than the inner diameter of the second channel. By setting up multiple stepped channels, each channel can be sealed, thereby improving the sealing effect. Figures 1 to 5 . The dynamic sealing module 2 is located in the first channel and is interference-connected with the inner wall of the first channel. It passes through the second channel from the first channel to the opening. The oil seal structure 4 is located in the second channel and is interference-connected with the inner wall of the second channel, and the oil seal structure 4 is interference-connected with the outer ring of the ball valve sealing ring 3. The utility model improves the sealing performance through the interference fit between the dynamic sealing module and the housing, the interference fit between the oil seal structure and the housing, and the interference fit between the oil seal structure and the ball valve sealing ring.

[0045] The oil seal structure 4 is a rubber seal ring. In a preferred embodiment, the oil seal structure 4 is a rectangular seal ring. In other embodiments, the oil seal structure 4 includes but is not limited to a rectangular seal ring, an O-ring, an X-ring or other special-shaped seal rings.

[0046] Please continue reading Figures 1 to 4 In a preferred embodiment, the dynamic sealing module 2 is a cylindrical structure, and the dynamic sealing module is a module that can still seal the product in a dynamic working state. The outer ring of the dynamic sealing module 2 has a raised structure 21, and the raised structure 21 is interference-connected with the axial inner wall 111 of the first channel to prevent the dynamic sealing module 2 from moving radially, and plays a sealing role during the operation of the product. When the dynamic sealing module 2 is squeezed, the raised structure 21 of the dynamic sealing module 2 squeezes the axial inner wall 111 of the first channel and seals with the first axial inner wall 111. At the same time, the dynamic sealing module 2 is compressed in the channel and moves along the axial inner wall 111 of the first channel. At this time, the radial inner wall 112 of the first channel will block the axial movement of the dynamic sealing module 2, thereby also sealing the dynamic sealing module 2 and the first radial inner wall 112. In one embodiment, the raised structure 21 has an installation bevel 211, and the installation bevel 211 is to prevent the sealing ring of the dynamic sealing module 2 from flipping during assembly.

[0047] Please continue reading Figures 1 to 5 The ball valve seal ring 3 includes a ball valve seal ring outer ring 31 and a ball valve seal ring inner ring. The ball valve seal ring outer ring 31 is a planar structure. The ball valve seal ring outer ring 31 passes through the second channel 12 along the axial inner wall 111 of the first channel to the opening. The oil seal inner ring 43 is interference-connected to the ball valve seal ring outer ring 31, thereby performing radial limiting and playing a sealing role, which can prevent impurities and contaminants in the cooling water from entering the dynamic sealing module. In the present utility model, a part of the ball valve seal ring outer ring 31 moves axially along the axial inner wall 111 of the first channel, and the other part is interference-connected with the oil seal structure 4, thereby shortening the length of the axial matching straight section between the housing and the ball valve seal ring, which can reduce the accumulation of impurities in the cooling water between the housing and the ball valve seal ring, causing jamming and wear. At the same time, the ball valve seal ring 3 is interference-fitted with the oil seal structure 4 to prevent impurities and contaminants in the cooling water from entering the dynamic sealing module.

[0048] Furthermore, the inner ring of the ball valve seal has an inclined surface 32, which is located at the opening. The ball valve 5 seals against the inclined surface 32, which contacts and cooperates with the ball valve structure 51. The ball valve acts as a seal during rotation, and liquid does not leak at this seal.

[0049] See also Figures 1 to 6As a preferred embodiment, the oil seal structure 4 comprises an oil seal outer ring 41, an oil seal inner ring 43, an oil seal upper side 42, and an oil seal lower side 44. The oil seal outer ring 41 is in interference fit with the axial inner wall 121 of the second channel, radially limiting the position to prevent the oil seal structure from moving, and the oil seal outer ring 41 and the axial inner wall 121 of the second channel form a sealing function. The oil seal inner ring 43 is in interference fit with the outer ring of the ball valve seal ring 3, thereby radially limiting the position and forming a sealing function, thereby preventing impurities and contaminants in the cooling water from entering the dynamic seal module and causing sticking and wear. The oil seal upper side 42 is in interference fit with the radial inner wall 122 of the second channel, axially limiting the position to prevent the oil seal structure from moving axially. The oil seal lower side 44 faces the outside of the opening, facilitating observation and replacement.

[0050] In another embodiment, the dynamic sealing module 2 includes a cylindrical sealing ring 20 and a reinforced sealing ring 22. The reinforced sealing ring 22 is disposed on the outer ring of the cylindrical sealing ring 20. The reinforced sealing ring 22 is located near the center of the outer ring of the cylindrical sealing ring, and the raised structure 21 is disposed on the reinforced sealing ring 22. The inner ring of the ball valve sealing ring 3 also has an inner ring upper flat surface 33 and an inner ring lower flat surface 34. Along the axial direction of the channel, the inner ring upper flat surface 33 of the ball valve sealing ring 3 seals against the outer ring of the cylindrical sealing ring, and the inner ring of the cylindrical sealing ring is flush with the inner ring lower flat surface 34 of the ball valve sealing ring 3, thereby improving sealing performance.

[0051] See also Figure 7 Preferably, the ball valve 5 is a plastic ball valve having a spherical surface 51, which seals against the inclined surface 42. The ball valve 5 is a double ball valve or a single ball valve. During the rotation of the ball valve, the spherical surface of the ball valve cooperates with the inclined surface of the ball valve sealing ring to provide a seal.

[0052] like Figure 1As shown, when the ball valve 5 rotates to the flow port (not shown) on the ball valve and connects with the channel of the housing 1, the dynamic sealing structure is in the open state. At this time, the ball valve 5 pushes the ball valve sealing ring 3 into the channel 10 of the housing 1. The ball valve sealing ring 3 and the dynamic sealing module 2 are deformed due to the compression force. A part of the outer ring 31 of the ball valve sealing ring moves upward close to the axial inner wall 111 of the first channel, and the dynamic sealing module 2 is also squeezed and then sealed with the axial inner wall 111 of the first channel and the radial inner wall 112 of the first channel, so that the dynamic sealing module 2 and the channel are in a closed state. The gaps between the inner walls and the gaps between the ball valve sealing ring 4 and the inner wall of the channel are reduced or eliminated, thereby preventing impurities in the fluid in the channel from accumulating between the dynamic sealing module and the housing and between the ball valve sealing ring and the housing. At the same time, the ball valve sealing ring and the dynamic sealing module, the oil seal structure and the ball valve sealing ring, and the oil seal structure and the inner wall of the channel are all in a sealed state, which can effectively prevent pollutants such as mud, aluminum chips, and iron chips in the cooling water from entering the dynamic sealing structure, thereby causing defects such as the dynamic sealing structure to become stuck and fail, and impurities entering the dynamic sealing structure to cause parts wear.

[0053] like Figure 2 As shown, when the ball valve 5 rotates to close the channel of the housing 1, the dynamic sealing structure is in a closed state, and the elastic force of the dynamic sealing module 2 and the ball valve sealing ring 3 is restored. Since the dynamic sealing module 2 is in interference connection with the inner wall 111 of the first channel, and the oil seal structure 4 is in interference connection with the ball valve sealing ring 3, it can still effectively prevent pollutants such as mud, aluminum chips, and iron chips in the cooling water in the channel from entering the dynamic sealing structure.

[0054] The utility model also provides a thermal management module, which includes an electronically controlled actuator. The thermal management module includes the above-mentioned dynamic sealing structure.

[0055] The impurity-proof dynamic seal structure of the present invention retains the original dynamic seal structure's ability to provide good sealing effects under high and low pressures, while adding an oil seal structure. Through the combined effect of interference fit between the oil seal structure and the housing, the dynamic seal module and the housing, and the oil seal structure and the ball valve seal ring, it can effectively prevent contaminants such as silt, aluminum chips, and iron chips in the cooling water from entering the dynamic seal module, causing defects such as the dynamic seal module becoming stuck and failing, and impurities entering the dynamic seal structure and causing wear of parts. The impurity-proof dynamic seal structure of the present invention, in which the housing, dynamic seal module, ball valve seal ring, oil seal structure, and ball valve can be connected together through an interference fit, has a simple overall structure, is easy to produce, has a high output, and is inexpensive.

[0056] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0057] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify and modify the above embodiments within the scope of the present invention.

Claims

1. A dynamic sealing structure to prevent impurities, characterized in that: It comprises a housing (1), a dynamic sealing module (2), a ball valve sealing ring (3), an oil seal structure (4) and a ball valve (5). The housing (1) has a channel (10) and an opening (101) communicating with the channel (10); the dynamic sealing module (2) is sealingly connected to the inner wall of the channel (10); one side of the ball valve sealing ring (3) is sealingly connected to the dynamic sealing module, and the other side extends from the inside of the channel to the outside to the opening; along the axial direction of the channel, the oil seal structure (4) is sealingly embedded in the channel and sealingly connected to the outer ring of the ball valve sealing ring (3); and the oil seal structure extends from the inside of the channel to the opening direction to the end face of the opening; the ball valve (5) is located at the opening and is in sealing contact with the ball valve sealing ring (3).

2. The impurity-proof dynamic sealing structure according to claim 1, characterized in that: The oil seal structure extends from the inside of the channel toward the opening until it is flush with the end surface of the opening or extends out of the end surface of the opening.

3. The dynamic sealing structure according to claim 1, characterized in that: The oil seal structure (4) is a rubber seal ring, and the oil seal structure (4) is a rectangular seal ring.

4. The impurity-proof dynamic sealing structure according to claim 1, characterized in that: The channel (10) comprises a first channel (11) and a second channel (12) which are arranged in sequence, wherein the second channel (12) is adjacent to the opening (101). The dynamic sealing module (2) is located in the first channel (11) and is interference-connected with the inner wall of the first channel (11). The ball valve sealing ring (3) passes through the second channel (12) from the first channel (11) to the opening (101). The oil seal structure (4) is located in the second channel (12) and is interference-connected with the inner wall of the second channel, and the oil seal structure (4) is interference-connected with the outer ring of the ball valve sealing ring (3).

5. The impurity-proof dynamic sealing structure according to claim 4, characterized in that: The dynamic sealing module (2) is a cylindrical structure. The outer ring of the dynamic sealing module (2) has a protruding structure (21). The protruding structure (21) is interference-connected with the axial inner wall (111) of the first channel.

6. The impurity-proof dynamic sealing structure according to claim 5, characterized in that: The ball valve sealing ring (3) comprises a ball valve sealing ring outer ring (31) and a ball valve sealing ring inner ring. The outer ring (31) of the ball valve sealing ring is a planar structure, and the inner ring of the oil seal structure is interference-connected to the outer ring (31) of the ball valve sealing ring. The inner ring of the ball valve sealing ring has an inclined surface (32), the inclined surface (32) is located at the opening, and the ball valve (5) is sealed against the inclined surface (32).

7. The impurity-proof dynamic sealing structure according to claim 6, characterized in that: The oil seal structure (4) comprises an oil seal outer ring (41), an oil seal inner ring (43), an oil seal upper side (42) and an oil seal lower side (44). The oil seal outer ring (41) is interference-connected with the axial inner wall (121) of the second channel. The oil seal inner ring (43) is interference-connected with the ball valve seal outer ring (31). The upper side (42) of the oil seal is interference-connected with the radial inner wall (122) of the second channel, and the lower side (44) of the oil seal faces the outside of the opening.

8. The impurity-proof dynamic sealing structure according to claim 6, characterized in that: The dynamic sealing module (2) comprises a cylindrical sealing ring (20) and a reinforced sealing ring (22), wherein the reinforced sealing ring (22) is arranged on the outer ring of the cylindrical sealing ring (20), the reinforced sealing ring (22) is close to the center of the outer ring of the cylindrical sealing ring, and the protruding structure (21) is arranged on the reinforced sealing ring (22). The inner ring of the ball valve sealing ring also has an inner ring upper plane (33) and an inner ring lower plane (34). Along the axial direction of the channel, the inner ring upper plane (33) seals against the outer ring of the cylindrical sealing ring (20), and the inner ring of the cylindrical sealing ring is flush with the inner ring lower plane (34).

9. The impurity-proof dynamic sealing structure according to claim 1, characterized in that: The ball valve (5) is a plastic ball valve, and the ball valve (5) is a double ball valve or a single ball valve.

10. A thermal management module, characterized in that: The thermal management module includes the anti-impurity dynamic sealing structure described in any one of claims 1 to 9.

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