Heat management multi-way integrated disc type water valve

Abstract

The invention relates to the technical field of valves, in particular to a thermal management multi-way integrated disc type water valve which comprises a valve body and a valve element rotationally arranged in the valve body, a plurality of outer flow channel openings used for water passing are formed in the valve body, a plurality of inner flow channels used for water diversion are formed in the valve element, and at least two openings are formed in each inner flow channel. Each opening is correspondingly communicated with different outer flow channel openings; when the valve element rotates in the valve body, the inner flow channel synchronously rotates, and the opening of the inner flow channel is synchronously switched to be communicated with other outer flow channel openings. According to the water valve, switching of multiple working modes can be achieved through rotation control over the valve element. Compared with a traditional low-integration-level reversing valve, the water valve can be compatible with more working modes, the production cost is effectively reduced, the whole vehicle space is saved, and the conversion efficiency is improved; and compared with a column type structure, the rotating torque of the water valve is smaller, internal leakage is easier to control, and the process quality is easier to control.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and particularly to a thermal management multi-way integrated disc valve. Background Art

[0002] With the increasing maturity of new energy vehicle thermal management technology, the current market is developing towards integration, low energy consumption, low cost, etc. As a result, there are higher integration requirements for thermal management components, especially for the control of cooling water energy exchange on the water side of thermal management, such as the temperature control of systems like power batteries, passenger compartments, heat pump air conditioners, and electric drive and electronic control systems.

[0003] Currently, for the exchange of cooling water in different thermal management systems, it is mainly achieved through water valves. The mainstream water valves in the market are mostly low-integration reversing valves, such as three-way valves and four-way valves. To meet the current more complex thermal management control requirements, according to the traditional solution, the number of water valves needs to be increased, and precise adjustment and control of specific water valves are required during control. This will inevitably increase production costs, increase the space occupied by the control system, and reduce energy conversion efficiency.

[0004] At the same time, in traditional solutions, columnar water valves are more commonly used, and the passage adjustment control is achieved by the circumferential rotation of the valve core. During the adjustment process of columnar water valves, there are problems such as relatively large torque and easy internal leakage. Compared with traditional columnar water valves, disc valves have the advantages of smaller rotational torque, easier control of internal leakage, and easier control of process quality.

[0005] It can be seen that there is still room for improvement in the existing thermal management water valve structure, and it should be optimized to improve its integration, make the management of multiple channels more convenient and flexible, and also reduce the overall cost and space occupied by the thermal management system. Therefore, a more reasonable technical solution needs to be proposed to solve the technical problems existing in the prior art. Summary of the Invention

[0006] To at least overcome one of the above-mentioned defects, the present invention proposes a thermal management multi-way integrated disc valve, which integrates multiple controllable passages, realizes the adjustment and commutation of multiple passages, has better valve performance, and reduces costs, improves conversion efficiency, and saves vehicle space.

[0007] To achieve the above object, the disc valve disclosed in the present invention may adopt the following technical solutions:

[0008] A thermal management multi-way integrated disc valve includes a valve body and a valve core rotatably arranged in the valve body. The valve body forms several external flow ports for water flow, and the valve core forms several internal flow channels for water diversion. At least two openings are formed on the internal flow channels, and each opening corresponds to and communicates with a different external flow port; when the valve core rotates in the valve body, the internal flow channels rotate synchronously, and the openings of the internal flow channels are synchronously switched to communicate with other external flow ports.

[0009] The above-mentioned disclosed integrated disc water valve rotates the valve core in the valve body to switch the external flow ports connected by the internal flow channels, so as to correspondingly connect different external water supply channels and realize the switching of the water supply direction. In this way, the integration degree of the control water valve can be greatly improved, the number of different water supply channels controlled by a single water valve can be increased, the number of water valves in the thermal management system can be reduced, and the system can be streamlined.

[0010] Furthermore, there are various schemes for the arrangement of the external flow ports. For example, in some schemes, the external flow ports can be arranged in an inner and outer double-layer along the circumference of the bottom surface of the valve body. As the valve core rotates, the corresponding channel switching is realized, and it is not uniquely limited. Here, an optimization is carried out and one feasible option is proposed: the external flow ports are arranged at intervals along the circumference of the bottom surface of the valve body. When the above scheme is adopted, the external flow ports form a single-layer layout in the circumferential direction on the bottom surface of the valve body. The internal flow channel of the valve core connects two different external flow ports on the bottom surface, so as to realize the connection of two external water supply channels; when the valve core rotates, the internal flow channel rotates and moves synchronously, and after moving, it reconnects two different external flow ports, so as to realize the switching of the water supply path. Similarly, multiple internal flow channels on the valve core rotate and move synchronously, and multiple groups of water supply paths can be synchronously switched. When multiple groups of internal flow channels correspond to the external flow ports, multiple groups of water supply channels can be synchronously switched, and the specific number of groups of water supply channels can be set according to actual needs.

[0011] Furthermore, the external flow ports can be constructed in various structures. For example, in some schemes, they can be constructed as circular, and in some schemes, they can be constructed as square. Their structures are not uniquely limited. Here, an optimization is carried out and one feasible option is proposed: the external flow ports include fan-shaped channel ports, and the central angles corresponding to the channel ports include 45° and 22.5°. When the above scheme is adopted, the channel ports are arranged on concentric circles, and the spacing between adjacent channel ports is the same, and adjacent channel ports are spaced apart from each other.

[0012] Furthermore, there are various schemes for the internal flow channels to connect the external flow ports, and their connection structures are not uniquely limited. Here, an optimization is carried out and one feasible option is proposed: the internal flow channels include a flow channel cavity formed inside the valve core, and the openings penetrate from the inside of the flow channel cavity to the outside of the valve core and correspondingly connect different external flow ports. When the external cooling water enters the flow channel cavity from one external flow port, it enters another external flow port through the flow channel cavity to realize the guiding and switching of the cooling water. When such a scheme is adopted, one flow channel cavity connects two external flow ports. In some other schemes, multiple openings can also be provided on one flow channel cavity to realize the connection of multiple external flow ports.

[0013] Furthermore, the structure of the inner flow channel can also be constructed in various forms, which can correspond to the structure of the outer flow channel. In some solutions, it can be constructed as a circle, and in other solutions, it can be constructed as a square, etc. Its structure is not uniquely limited. Here, an optimization is carried out and one feasible option is proposed: the flow channel cavity includes a fan-shaped cavity, and the central angles corresponding to the cavity include 61.5° and 45°, and at least two flow channel cavities that communicate with each other for water diversion are included. When the above solution is adopted, usually one flow channel cavity can communicate with two adjacent outer flow ports and achieve water diversion. In some solutions, by connecting the flow channel cavities at different positions for water diversion, more outer flow ports at more positions can be connected for water diversion. Through different positions of the flow channel cavities and coordinated connection, more water diversion conduction and switching solutions can be achieved.

[0014] Furthermore, when the valve core realizes internal drainage conduction, it can be constructed in various solutions, and its structure is not uniquely limited. Here, an optimization is carried out and one feasible option is proposed: the valve core includes a valve core upper piece and a valve core lower piece that are relatively matched. After the valve core upper piece and the valve core lower piece are butt-jointed and spliced, an inner flow channel is formed. When the above solution is adopted, a clamping groove and a protrusion are correspondingly arranged between the valve core upper piece and the valve core lower piece, and the valve core upper piece and the valve core lower piece can be connected and sealed by welding.

[0015] Furthermore, for the cooperation between the valve core and the valve body, in some solutions, a valve cover can be provided to enclose the valve core in the valve body to realize the operation and adjustment of the valve core in the valve body and reduce the interference caused by the outside to the valve core. Here, an optimization is carried out and one feasible option is proposed: the disc water valve further includes a valve cover. The valve cover and the valve body are correspondingly buckled to form a valve cavity for accommodating the valve core. The joint between the valve cover and the valve body is sealed by a third sealing structure; a valve hole is provided on the valve cover, and a transmission shaft passing through the valve hole is provided on the valve core. The joint between the transmission shaft and the valve hole is sealed by a first sealing structure. When the above solution is adopted, the valve cavity formed by the cooperation between the valve cover and the valve body can enclose the valve core therein; the third sealing structure at the joint between the valve cover and the valve body can maintain the tightness of the valve cavity and prevent water from leaking inside and outside the valve cavity; the first sealing structure at the joint between the transmission shaft and the valve hole can prevent leakage from the valve hole.

[0016] Furthermore, the valve core rotates within a certain range during the rotation process. By limiting the rotation range of the valve core, the rotation check can be performed regularly to maintain the control accuracy. The limiting structure can be implemented through a variety of schemes, and it is not limited to a single one. Here, it is optimized and one of the feasible options is proposed: it also includes a limit structure, and the limit structure is used to limit the rotation angle of the valve core relative to the valve cover. When the above scheme is adopted, the limit structure can adopt a variety of schemes, for example, a valve cover limit block can be set on the valve cover, and a valve core limit block can be set on the valve core at the same time. The valve core limit block and the valve cover limit block are both located on the same circumference. When the valve core rotates, the valve core limit block contacts the valve cover limit block, which prevents the valve core from continuing to rotate and can only rotate in the opposite direction. In some schemes, the valve core limit block can be set as a circular arc, and the corresponding valve cover limit block is also a circular arc. When the two are close to each other and contact, they conflict with each other, thereby limiting the continued rotation of the valve core.

[0017] Furthermore, in order to improve the sealing performance of the overall solution and reduce internal leakage, especially when the valve core rotates to switch and connect different water supply passages, the fitting between the valve core and the valve body can be sealed. This can be achieved in a variety of ways, and its structure is not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: a second sealing structure is provided between the bottom surface of the valve core and the valve body, and the second sealing structure surrounds the corresponding connected outer flow channel opening and the opening of the inner flow channel to form a sealed channel. When the above scheme is adopted, the second sealing structure can fit the shape of the outer flow channel opening, surround and seal the outer flow channel opening, and surround and seal the opening of the inner flow channel; the second sealing structure can also fit the shape of the opening of the inner flow channel, close the opening of the inner flow channel, and close the outer flow channel opening.

[0018] Furthermore, the valve body is connected to the external water supply passage, and the connected water supply passage is switched by the valve core. The connecting and matching position between the valve body and the water supply passage is also provided with a sealing structure. Here, optimization is made and one of the feasible options is proposed: the bottom surface of the valve body is provided with a fourth sealing structure, and the fourth sealing structure is used to seal the connection between the valve body and the external water supply passage. The fourth sealing structure surrounds the corresponding connected external flow channel opening and the external water supply passage to form a sealed passage. When the above scheme is adopted, the fourth sealing structure corresponds to the shape of the external flow channel opening, surrounds the external flow channel opening, so that the external flow channel opening and the water supply pipeline form a sealed and connected waterway.

[0019] Compared with the prior art, some beneficial effects of the technical solution disclosed in the present invention include:

[0020] The water valve disclosed in the present invention realizes the conduction of water flow by controlling the valve core to communicate with different external flow ports, and switches to communicate with the water supply channel by rotating the valve core through a certain angle. Therefore, the switching of multiple working modes can be achieved by controlling the rotation of the valve core. Compared with the traditional low-integration reversing valve, the water valve disclosed in the present invention can be compatible with more working modes, effectively reducing production costs, saving vehicle space, and improving conversion efficiency; and compared with the columnar structure, the water valve has a smaller rotation torque, easier control of internal leakage, and easier control of process quality. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the overall structure of the water valve.

[0023] Figure 2 It is an exploded schematic diagram of the water valve from one perspective.

[0024] Figure 3 It is an exploded schematic diagram of the water valve from another perspective.

[0025] Figure 4 It is a front view structural schematic diagram of the water valve.

[0026] Figure 5 For Figure 4 The sectional view of the A-A section in

[0027] Figure 6 It is a schematic diagram of the overall structure of the valve cover.

[0028] Figure 7 It is a schematic diagram of the overall structure of the lower piece of the valve core from one perspective.

[0029] Figure 8 It is a schematic diagram of the overall structure of the lower piece of the valve core from another perspective.

[0030] Figure 9 It is a schematic diagram of the overall structure of the valve body from one perspective.

[0031] Figure 10 It is a schematic diagram of the overall structure of the valve body from another perspective.

[0032] Figure 11 It is a schematic diagram of the internal flow channel communicating with the corresponding external flow port in the initial position in the embodiment.

[0033] Figure 12 Schematic diagram of the internal flow channel communicating with the corresponding external flow port after rotating a certain angle in the embodiment.

[0034] In the above-mentioned drawings, the meanings of the respective marks are as follows:

[0035] 1. Valve cover; 101. Valve cover limit block; 102. Installation groove; 2. Valve body; 201. First external flow port; 202. Second external flow port; 203. Third external flow port; 204. Fourth external flow port; 205. Fifth external flow port; 206. Sixth external flow port; 207. Seventh external flow port; 208. Eighth external flow port; 209. Ninth external flow port; 3. Spool; 301. Upper spool piece; 3011. Transmission shaft; 3012. Spool limit block; 302. Lower spool piece; 3021. First cavity; 3022. Second cavity; 3023. Third cavity; 3024. Fourth cavity; 3025. Fifth cavity; 4. Wear-resistant part; 5. First seal; 6. Second seal; 7. Third seal; 8. Fourth seal; 9. Protection rib; 10. Positioning pin; a. First opening; b. Second opening; c. Third opening; d. Fourth opening; e. Fifth opening; f. Sixth opening; g. Seventh opening; h. Eighth opening. Detailed implementation manners

[0036] The following further explains this embodiment in conjunction with the drawings and specific embodiments.

[0037] In view of the deficiencies existing in the existing water valve structure, the following embodiments are optimized to overcome the deficiencies existing in the prior art.

[0038] Embodiment

[0039] As Figures 1 to 12 shown, this embodiment provides a thermal management multi-way integrated disc water valve, including a valve body 2 and a spool 3 rotatably arranged in the valve body 2. The valve body 2 forms a plurality of external flow ports for passing water, and a plurality of internal flow channels for guiding water are formed on the spool 3. At least two openings are formed on the internal flow channels, and each opening correspondingly communicates with different external flow ports; when the spool 3 rotates in the valve body 2, the internal flow channels rotate synchronously, and the openings of the internal flow channels are synchronously switched to communicate with other external flow ports.

[0040] For the integrated disc water valve disclosed in this embodiment, by rotating the spool 3 in the valve body 2 to switch the external flow port communicated by the internal flow channel, different external water supply channels can be correspondingly communicated, so as to realize the switching of the water supply direction. In this way, the integration degree of the control water valve can be greatly improved, the number of different water supply channels controlled by a single water valve can be increased, the number of water valves in the thermal management system can be reduced, and the system can be streamlined.

[0041] The arrangement of the outflow ports can adopt various schemes. For example, in some schemes, the outflow ports can be arranged in an inner and outer double-layer along the circumference on the bottom surface of the valve body 2, and the switching of the channels is realized correspondingly as the valve core 3 rotates. It is not uniquely limited. In this embodiment, optimization is carried out and one of the feasible options is adopted: as Figure 9 , Figure 10 shown, the outflow ports form a circumferential single-layer layout on the bottom surface of the valve body 2. When adopting the above scheme, the outflow ports form a circumferential layout on the bottom surface, and the inner flow path of the valve core 3 communicates with two different outflow ports on the bottom surface, so as to realize the connection of two external water supply channels; when the valve core 3 rotates, the inner flow path rotates and moves synchronously, and after moving, it reconnects two different outflow ports, so as to realize the switching of the water supply path. Similarly, multiple inner flow paths on the valve core 3 rotate and move synchronously, and multiple groups of water supply paths can be switched synchronously. When multiple groups of inner flow paths are set to correspond to the outflow ports, multiple groups of water supply channels can be switched synchronously, and the specific number of water supply channel groups can be set according to actual needs.

[0042] The outflow ports can be constructed into various structures. For example, in some schemes, they can be constructed into a circular shape, and in some schemes, they can be constructed into a square shape. Their structures are not uniquely limited. In this embodiment, optimization is carried out and one of the feasible options is adopted: as Figure 9 , Figure 10 shown, the outflow ports include fan-shaped channel openings, and the central angles corresponding to the channel openings include 45° and 22.5°. When adopting the above scheme, the channel openings are arranged on concentric circles, and the distances between adjacent channel openings are the same, and adjacent channel openings are spaced apart from each other.

[0043] Preferably, in this embodiment, 7 outflow ports with a 45° angle are set, namely outflow port one 201, outflow port two 202, outflow port three 203, outflow port four 204, outflow port five 205, outflow port six 206, and outflow port seven 207; 2 outflow ports with a 22.5° angle are set, namely outflow port eight 208 and outflow port nine 209; a total of 9 outflow ports are set, and the 9 outflow ports are evenly spaced on the bottom surface of the valve body 2.

[0044] There are various schemes for the way of the inner flow path to connect to the external flow ports, and its connection structure is not uniquely limited. In this embodiment, optimization is carried out and one of the feasible options is adopted: as Figure 7 , Figure 8As shown, the internal flow channel includes a flow channel cavity formed inside the valve core 3. The opening penetrates from the inside of the flow channel cavity to the outside of the valve core 3 and correspondingly communicates with different external flow ports. When the external cooling water enters the flow channel cavity from one external flow port, it enters another external flow port through the flow channel cavity to realize the guiding and switching of the cooling water. When adopting such a scheme, one flow channel cavity communicates with two external flow ports. In some other schemes, multiple openings can also be provided on one flow channel cavity to realize the communication of multiple external flow ports.

[0045] The structure of the internal flow channel can also be constructed in various forms, which can correspond to the structure of the external flow channel. In some schemes, it can be constructed as a circle, and in some other schemes, it can be constructed as a square, etc. Its structure is not uniquely limited. In this embodiment, optimization is carried out and one feasible option is adopted: the flow channel cavity includes a fan-shaped cavity body, and the corresponding central angles of the cavity body include 61.5° and 45°, and at least two mutually connected and water-guiding flow channel cavities are included. When adopting the above scheme, usually one flow channel cavity can communicate with two adjacent external flow ports and realize water guiding. In some schemes, by connecting and guiding water through the flow channel cavities at different positions, more external flow ports at more positions can be connected and guided. Through different positions of the flow channel cavities and cooperative connection, more water guiding conduction and switching schemes can be realized.

[0046] Preferably, in this embodiment, 3 cavities with an angle of 61.5° can be set, which are cavity one 3021, cavity two 3022, and cavity three 3023 respectively; 2 cavities with an angle of 45° can be set, which are cavity four 3024 and cavity five 3025 respectively, and a cavity with an angle of 61.5° is arranged between cavity four 3024 and cavity five 3025. Therefore, after the front ends of cavity four 3024 and cavity five 3025 are extended and connected, the communication and guidance of water flow are realized.

[0047] Preferably, a first opening a and a second opening b are provided on cavity one 3021, a third opening c and a fourth opening d are provided on cavity two 3022, a fifth opening e and a sixth opening f are provided on cavity three 3023, a seventh opening g is provided on cavity four 3024, and an eighth opening h is provided on cavity five 3025; cavity four 3024 and cavity five 3025 jointly form an internal flow channel.

[0048] When the internal flow channel cooperates with the external flow port to conduct water flow, it is realized through the openings on the corresponding cavity body. For example:

[0049] Such as Figure 11As shown, with the state where the valve cover limit block 101 and the valve core limit block 3012 are in contact as the initial state, the first external flow port 201 and the second external flow port 202 are respectively connected to the sixth opening f and the fifth opening e of the third cavity 3023. Therefore, external cooling water can enter the third cavity 3023 through the first external flow port 201 and the sixth opening f, and flow out through the fifth opening e and the second external flow port 202, realizing the guiding and switching of the water flow; similarly, the fourth external flow port 204 and the fifth external flow port 205 are respectively connected to the fourth opening d and the third opening c of the second cavity 3022; the sixth external flow port 206 and the seventh external flow port 207 are respectively connected to the second opening b and the first opening a of the first cavity 3021; the third external flow port 203 and the ninth external flow port 209 are respectively connected to the seventh opening g of the fourth cavity 3024 and the eighth opening h of the fifth cavity 3025; the eighth external flow port 208 is blocked.

[0050] When it is necessary to switch the guiding direction of the water flow, the valve core 3 can be rotated by a certain angle to connect the corresponding external flow port to another different external flow port. For example, when the valve core is rotated clockwise by 112.5°, the corresponding connection relationship changes:

[0051] As Figure 12 shown, the second external flow port 202 and the third external flow port 203 are respectively connected to the fourth opening d and the third opening c of the second cavity 3022; the fourth external flow port 204 and the fifth external flow port 205 are respectively connected to the second opening b and the first opening a of the first cavity 3021; the seventh external flow port 207 and the eighth external flow port 208 are respectively connected to the sixth opening f and the fifth opening e of the third cavity 3023; the sixth external flow port 206 and the first external flow port 201 are respectively connected to the seventh opening g of the fourth cavity 3024 and the eighth opening h of the fifth cavity 3025; the ninth external flow port 209 is blocked.

[0052] In some other embodiments, by adjusting the number, position, and central angle of the external flow ports, and correspondingly adjusting the number, position, central angle, and opening position of the internal flow channels, more switching and adjustment of connection schemes can be achieved.

[0053] When the valve core 3 realizes internal drainage and conduction, it can be constructed in various schemes, and its structure is not uniquely limited. In this embodiment, it is optimized and one feasible option is adopted: As Figure 5 shown, the valve core 3 includes a valve core upper piece 301 and a valve core lower piece 302 that are relatively matched. After the valve core upper piece 301 and the valve core lower piece 302 are butt-jointed and combined, an internal flow channel is formed.

[0054] Preferably, the valve core upper piece 301 and the valve core lower piece 302 are correspondingly welded to achieve a sealed connection after welding.

[0055] Preferably, a wear-resistant structure is provided between the upper valve core piece 301 and the valve cover 1. The wear-resistant structure includes a mounting groove 102 provided on the valve cover 1, and a wear-resistant member 4 is provided in the mounting groove 102. The wear-resistant member 4 can be configured as a ring. When the upper valve core piece 301 rotates, it abuts against and relatively slides with the wear-resistant member 4, thereby achieving the purpose of protecting the valve cover 1 and the upper valve core piece 301.

[0056] Regarding the cooperation between the valve core 3 and the valve body 2, in some solutions, a valve cover 1 can be provided to enclose the valve core 3 in the valve body 2, so as to realize the operation and adjustment of the valve core 3 in the valve body 2 and reduce the interference caused by the outside to the valve core 3. This embodiment is optimized and one of the feasible options is adopted: as Figure 5 shown, the disc water valve further includes a valve cover 1. The valve cover 1 and the valve body 2 are correspondingly buckled to form a valve cavity for accommodating the valve core 3. The joint between the valve cover 1 and the valve body 2 is sealed by a third sealing structure; a valve hole is provided on the valve cover 1, and a transmission shaft 3011 passing through the valve hole is provided on the valve core 3. The joint between the transmission shaft 3011 and the valve hole is sealed by a first sealing structure. When the above solution is adopted, the valve cavity formed by the cooperation between the valve cover 1 and the valve body 2 can enclose the valve core 3 therein; the third sealing structure at the joint between the valve cover 1 and the valve body 2 can maintain the tightness of the valve cavity and prevent water from leaking inside and outside the valve cavity; the first sealing structure at the joint between the transmission shaft 3011 and the valve hole can prevent leakage from the valve hole.

[0057] Preferably, as Figure 5 shown, the third sealing structure may include a third sealing groove provided on the valve body 2, and a third sealing member 7 is provided in the third sealing groove; the first sealing structure may include a first sealing groove provided at the valve hole, and a first sealing member 5 is provided in the first sealing groove. The third sealing member 7 is preferably made of EPDM rubber material and adopts an "O-ring" structure; the first sealing member 5 is preferably made of EPDM rubber material and adopts a sealing ring structure with a cross-section of X.

[0058] The valve core 3 rotates within a certain range during the rotation process. By limiting the rotation range of the valve core 3, rotation verification can be performed regularly to maintain control accuracy. The limiting structure can be implemented through a variety of schemes, which is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: it also includes a limiting structure, which is used to limit the rotation angle of the valve core 3 relative to the valve cover 1. When the above scheme is adopted, the limiting structure can adopt a variety of schemes, for example, a valve cover limiting block 101 can be set on the valve cover 1, and a valve core limiting block 3012 can be set on the valve core 3. The valve core limiting block 3012 and the valve cover limiting block 101 are both located on the same circumference. When the valve core 3 rotates, the valve core limiting block 3012 contacts the valve cover limiting block 101, which prevents the valve core 3 from continuing to rotate and can only rotate in the opposite direction. In some solutions, the valve core limit block 3012 can be set as a circular arc, and the corresponding valve cover limit block 101 is also a circular arc. When the two come into contact after approaching, they will conflict with each other, thereby limiting the continued rotation of the valve core 3.

[0059] In order to improve the sealing performance of the overall solution and reduce internal leakage, especially when the valve core 3 rotates to switch and connect different water supply paths, the fitting between the valve core 3 and the valve body 2 can be sealed. This can be achieved in a variety of ways, and its structure is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: Figure 5 As shown, a second sealing structure is provided between the valve core 3 and the bottom surface of the valve body 2, and the second sealing structure surrounds the corresponding connected outer flow channel opening and the opening of the inner flow channel to form a sealed channel. When the above scheme is adopted, the second sealing structure can fit the shape of the outer flow channel opening, surround and seal the outer flow channel opening, and surround and seal the opening of the inner flow channel; the second sealing structure can also fit the shape of the opening of the inner flow channel, seal the opening of the inner flow channel, and seal the outer flow channel opening.

[0060] Preferably, the second sealing structure may include a second sealing groove provided on the valve core 3, in which a second sealing member 6 is provided, and the second sealing member 6 is preferably made of PTFE and EPDM bonded together. The second sealing member 6 forms a through hole for water flow corresponding to the opening of the outer flow channel and the opening of the inner flow channel.

[0061] Preferably, in this embodiment, a plurality of positioning pins 10 are arranged in the second sealing groove, and positioning grooves corresponding to the positioning pins 10 are formed on the second sealing member. A protective rib 9 is arranged at the groove wall of the second sealing groove, and the protective rib 9 is used to protect the second sealing member 6.

[0062] The valve body 2 is in communication with an external water supply passage. The water supply passage to be communicated is switched by a valve core 3. A sealing structure is also provided at the connection and cooperation position between the valve body 2 and the water supply passage. In this embodiment, optimization is carried out and one of the feasible options is adopted: a fourth sealing structure is provided on the bottom surface of the valve body 2. The fourth sealing structure is used to seal the connection between the valve body 2 and the external water supply passage. The fourth sealing structure surrounds the corresponding external outflow port and the external water supply passage to form a sealed passage. When the above solution is adopted, the fourth sealing structure corresponds to the shape of the external outflow port and surrounds the external outflow port, so that the external outflow port and the water supply pipeline form a sealed and connected water path.

[0063] Preferably, the fourth sealing structure may include a fourth sealing groove provided on the valve body 2. A fourth sealing member 8 is provided in the fourth sealing groove. The fourth sealing member 8 is preferably made of EPDM rubber material and is configured as a sealing sheet, on which a through hole corresponding to the external outflow port is provided.

[0064] The above are the implementation manners listed in this embodiment. However, this embodiment is not limited to the above optional implementation manners. Those skilled in the art can obtain many other implementation manners by arbitrarily combining the above manners. Anyone can obtain various other forms of implementation manners under the inspiration of this embodiment. The above specific implementation manners should not be construed as limiting the protection scope of this embodiment. The protection scope of this embodiment should be defined by the claims.

Claims

1. A thermal management multi-way integrated disc water valve, characterized in that: The invention comprises a valve body (2) and a valve core (3) rotatably arranged in the valve body (2); the valve body (2) forms a plurality of external flow openings for passing water; the valve core (3) forms a plurality of internal flow channels for guiding water; at least two openings are formed in the internal flow channel, and each opening corresponds to and is connected to a different external flow opening; when the valve core (3) rotates in the valve body (2), the internal flow channel rotates synchronously, and the openings of the internal flow channel are synchronously switched to be connected to other external flow openings.

2. The thermal management multi-way integrated disc water valve according to claim 1, characterized in that: The external flow openings are arranged at intervals along the circumference of the bottom surface of the valve body (2).

3. The thermal management multi-way integrated disc water valve according to claim 2, characterized in that: The outer flow channel opening includes a fan-shaped channel opening, and the central angles corresponding to the channel opening include 45° and 22.5°.

4. The thermal management multi-way integrated disc water valve according to claim 1, 2 or 3, characterized in that: The inner flow channel includes a flow channel cavity formed inside the valve core (3), and the opening extends from the inside of the flow channel cavity to the outside of the valve core (3) and is connected to different external flow channel openings. When external cooling water enters the flow channel cavity from one external flow channel opening, it enters another external flow channel opening through the flow channel cavity to realize the guiding switching of the cooling water.

5. The thermal management multi-way integrated disc water valve according to claim 4, characterized in that: The flow channel cavity comprises a sector-shaped cavity, the central angles of the cavity corresponding to the cavity include 61.5° and 45°, and the cavity comprises at least two flow channel cavities interconnected for water diversion.

6. The thermal management multi-way integrated disc water valve according to claim 1, characterized in that: The valve core (3) comprises a relatively matched upper valve core piece (301) and a lower valve core piece (302), and the upper valve core piece (301) and the lower valve core piece (302) are butt-jointed to form an inner flow channel.

7. The thermal management multi-way integrated disc water valve according to claim 1 or 6, characterized in that: The disc-type water valve also includes a valve cover (1), wherein the valve cover (1) and the valve body (2) are correspondingly buckled to form a valve cavity for accommodating a valve core (3), and the matching portion between the valve cover (1) and the valve body (2) is sealed by a third sealing structure; a valve hole is provided on the valve cover (1), and a transmission shaft (3011) passing through the valve hole is provided on the valve core (3), and the matching portion between the transmission shaft (3011) and the valve hole is sealed by a first sealing structure.

8. The thermal management multi-way integrated disc water valve according to claim 7, characterized in that: It also includes a limiting structure, which is used to limit the rotation angle of the valve core (3) relative to the valve cover (1).

9. The thermal management multi-way integrated disc water valve according to claim 4, characterized in that: A second sealing structure is provided between the valve core (3) and the bottom surface of the valve body (2), and the second sealing structure surrounds the correspondingly connected openings of the outer flow channel and the inner flow channel to form a sealed channel.

10. The thermal management multi-way integrated disc water valve according to claim 1, characterized in that: The bottom surface of the valve body (2) is provided with a fourth sealing structure, which is used to seal the connection between the valve body (2) and the external water supply channel. The fourth sealing structure surrounds the corresponding connected external flow channel and the external water supply channel to form a sealed channel.

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