CN219493139U - Control valve and thermal management system - Google Patents

Abstract

The utility model relates to a control valve and thermal management system, the control valve includes valve body and single case, the valve body is equipped with the valve pocket, one side of valve body is equipped with a plurality of communication holes that run through self lateral wall and communicate the valve pocket, the valve pocket is rotationally located to the case, the week side of case is equipped with a plurality of spread grooves along self circumference, and the case still is equipped with the through-channel, the through-channel runs through the case, the through-channel has the opening of two interval settings at the surface of case, and be equipped with one or more spread grooves between two openings of through-channel, when the valve body rotates different default angle relatively, the spread groove can communicate adjacent a plurality of communication holes, the through-channel can communicate adjacent or non-adjacent a plurality of communication holes. The control valve and the thermal management system solve the problem that the existing thermal management system cannot simultaneously meet the requirements of small occupied space and multiple working modes.

Description

Control valve and thermal management system

Technical Field

The application relates to the technical field of multi-way valves, in particular to a control valve and a thermal management system.

Background

As the reserves of global petroleum resources become more scarce, the price of petroleum has been rising, so the development of the automobile industry using petroleum as the main fuel has been severely hampered, and the pollution of the exhaust gas discharged from the automobile to the atmosphere and the health damage to the human body have been extremely serious. In view of this, the development of new energy automobiles is urgent to be a new direction in all countries worldwide.

As one of the most representative automobile types of new energy automobiles, pure electric automobiles are increasingly receiving attention from various governments. The heat management system is an important energy consumption module of the pure electric vehicle, and research on the heat management system is developed from an initial single part to a current integral integrated module so as to meet the higher requirement of the heat management system, thereby realizing more full utilization of vehicle energy.

The thermal management system is switched through the control valve corresponding to different working modes, and the working modes which can be switched by the traditional control valve are limited, so that the requirement of high integration of the current thermal management system cannot be met. In order to increase the working modes of the control valve, the existing thermal management system generally realizes the switching of a plurality of working modes through a plurality of two-way valves or a plurality of three-way valves, which can cause the thermal management system to occupy too much space.

Disclosure of Invention

Based on this, it is necessary to provide a control valve and a thermal management system to solve the problem that the existing thermal management system cannot simultaneously satisfy the small occupied space and many working modes.

The utility model provides a control valve includes valve body and single case, the valve body is equipped with the valve pocket, one side of valve body is equipped with a plurality of intercommunications hole that runs through self lateral wall and communicate the valve pocket, the valve pocket is rotationally located to the case, the week side of case is equipped with a plurality of spread grooves along self circumference, and the case still is equipped with the through-channel, the through-channel runs through the case, the through-channel has two openings that the interval set up at the surface of case, and be equipped with one or more spread grooves between two openings of through-channel, when the valve body rotates different default angle relatively, the spread groove can communicate adjacent a plurality of intercommunications hole, the through-channel can communicate adjacent or non-adjacent a plurality of intercommunications hole.

In one embodiment, the number of the connecting grooves is five, which are respectively defined as a first groove, a second groove, a third groove, a fourth groove and a fifth groove, the number of the through channels is one, and two openings of the through channels on the surface of the valve core are respectively defined as a first opening and a second opening, wherein the first opening, the first groove, the second opening, the second groove, the third groove, the fourth groove and the fifth groove are sequentially distributed along the circumferential direction of the valve core. The number of the communication holes is five, and the communication holes are respectively defined as a first hole, a second hole, a third hole, a fourth hole and a fifth hole, and the first hole, the second hole, the third hole, the fourth hole and the fifth hole are sequentially arranged along the circumferential direction of the valve body;

the control valve includes the following five communication modes:

communication mode one: when the valve core is positioned at a first preset position relative to the valve body, the first hole is communicated with the second hole through the through channel, the fourth hole is communicated with the fifth hole through the fourth groove, and the third hole is only communicated with the second groove and the third groove and is in a separation state;

and a second communication mode: when the valve core rotates from a first preset position to a first preset angle relative to the valve body, the first hole is communicated with the second hole through the first groove, the first hole is respectively communicated with the second hole and the third hole through the through channel, the third hole is communicated with the fourth hole through the third groove, the fourth hole is communicated with the fifth hole through the fourth groove, and the fifth hole is communicated with the first hole through the fifth groove;

communication mode three: when the valve core rotates a second preset angle relative to the valve body from a first preset position, the first hole is communicated with the third hole through the through channel, the fourth hole is communicated with the fifth hole through the fourth groove, and the second hole is only communicated with the first groove and is in a blocking state;

and a communication mode IV: when the valve core rotates from the first preset position to the valve body by a third preset angle, the second hole is communicated with the fourth hole through the through channel, the fifth hole is communicated with the first hole through the fourth groove, and the third hole is only communicated with the first groove and is in a blocking state;

communication mode five: when the valve core rotates from the first preset position to the valve body by a fourth preset angle, the third hole is communicated with the fourth hole through the penetrating channel and the first groove respectively, the fifth hole is communicated with the first hole through the fourth groove, and the second hole is only communicated with the fifth groove and is in a blocking state.

In one embodiment, the spool rotates clockwise relative to the valve body, and the first preset angle x is satisfied, 7.5 x is greater than or equal to 22.5, the second preset angle y is satisfied, 25 y is greater than or equal to 37.5, the third preset angle z is satisfied, 85 z is greater than or equal to 95, the fourth preset angle t is satisfied, 115 t is greater than or equal to 127.5.

In one embodiment, the length a of the first opening along the spool circumferential direction, the length b of the second opening along the spool circumferential direction, the length c of the first groove along the spool circumferential direction, the length d of the second groove along the spool circumferential direction, the length e of the third groove along the spool circumferential direction, the length f of the fourth groove along the spool circumferential direction, and the length g of the fifth groove along the spool circumferential direction satisfy a=b=d=e < g < c < f.

In one of the embodiments, the communication hole has a third opening provided toward a radial direction of the valve body, the communication hole can communicate with a connection groove or a through passage provided on the valve body through the third opening, the fourth opening provided toward an axial direction of the valve body, and the communication hole can communicate with an external pipe through the fourth opening.

In one embodiment, the valve core comprises a first end plate, a second end plate and a plurality of partition plates, wherein the first end plate and the second end plate are parallel and are arranged at intervals, the partition plates are arranged between the first end plate and the second end plate, and the first end plate, the second end plate and the plurality of partition plates are respectively surrounded to form a plurality of connecting grooves and penetrating channels.

In one embodiment, the control valve comprises a drive head and a drive shaft, one end of the drive shaft is connected with the valve core, and the other end of the drive shaft is in meshed connection with the drive head, so that the drive head can drive the valve core to rotate relative to the valve body through the drive shaft.

In one embodiment, the valve core and the drive shaft are integrally formed.

In one embodiment, the control valve further comprises a flexible sealing gasket, the flexible sealing gasket is arranged between the valve core and the valve body, the outer end of the flexible sealing gasket is fixedly arranged on the inner wall of the valve body, and the inner end of the flexible sealing gasket is in movable sealing fit with the valve core.

The present application also provides a thermal management system comprising a control valve as described in any one of the embodiments above.

Compared with the prior art, the control valve and the thermal management system provided by the application are provided with the through channels, and one or more connecting grooves are formed between openings at two ends of the through channels, so that two adjacent or more communication holes can be communicated through the corresponding connecting grooves, two non-adjacent communication holes can be communicated through the corresponding through channels, and even two adjacent communication holes with larger spacing can be communicated through the through channels. By doing so, the communication mode of the control valve is greatly increased, i.e. the operation mode of the thermal management system is greatly increased. And, so set up, do not need to enlarge the length of original spread groove, also can not occupy the arrangement space of spread groove of case week side, namely, so set up, can not reduce the quantity of the original intercommunication mode of control valve. Also, since the number of spools is one, the volume of the control valve is small, that is, the space occupied by the thermal management system is small.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of a control valve according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of a control valve according to one embodiment provided herein;

FIG. 3 is a cross-sectional view of one embodiment of a control valve provided herein in a communication mode;

FIG. 4 is a cross-sectional view of a control valve according to one embodiment of the present disclosure in a second communication mode;

FIG. 5 is a cross-sectional view of a control valve according to one embodiment of the present disclosure in communication mode three;

FIG. 6 is a cross-sectional view of a control valve according to one embodiment of the present disclosure in a communication mode four;

fig. 7 is a cross-sectional view of a control valve according to an embodiment of the present application in a fifth communication mode.

Reference numerals: 100. a valve body; 110. a valve cavity; 120. a communication hole; 121. a first hole; 122. a second hole; 123. a third hole; 124. a fourth hole; 125. a fifth hole; 126. a third opening; 127. a fourth opening; 200. a valve core; 210. a connecting groove; 211. a first groove; 212. a second groove; 213. a third groove; 214. a fourth groove; 215. a fifth groove; 220. a through passage; 221. a first opening; 222. a second opening; 230. a first end plate; 240. a second end plate; 250. a partition plate; 300. a drive head; 310. a first housing; 320. a second housing; 400. a drive shaft; 410. a seal ring; 500. a cover; 600. a planar gasket; 700. a flexible sealing gasket.

Detailed Description

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As one of the most representative automobile types of new energy automobiles, pure electric automobiles are increasingly receiving attention from various governments. The heat management system is an important energy consumption module of the pure electric vehicle, and research on the heat management system is developed from an initial single part to a current integral integrated module so as to meet the higher requirement of the heat management system, thereby realizing more full utilization of vehicle energy.

The thermal management system is switched through the control valve corresponding to different working modes, and the working modes which can be switched by the traditional control valve are limited, so that the requirement of high integration of the current thermal management system cannot be met. In order to increase the working modes of the control valve, the existing thermal management system generally realizes the switching of a plurality of working modes through a plurality of two-way valves or a plurality of three-way valves, which can cause the thermal management system to occupy too much space.

Referring to fig. 1-7, in order to solve the problem that the existing thermal management system cannot simultaneously satisfy the small occupied space and the large number of working modes, the present application provides a control valve and a thermal management system, the control valve includes a valve body 100 and a single valve core 200, the valve body 100 is provided with a valve cavity 110, one side of the valve body 100 is provided with a plurality of communication holes 120 penetrating through the side wall of the valve body and communicating with the valve cavity 110, the valve core 200 is rotatably disposed in the valve cavity 110, the peripheral side of the valve core 200 is provided with a plurality of connection grooves 210 distributed along the peripheral direction of the valve core 200, the valve core 200 is further provided with a through passage 220, the through passage 220 penetrates through the valve core 200, the surface of the valve core 200 is provided with two openings arranged at intervals, one or more connection grooves 210 are arranged between the two openings of the through passage 220, when the valve core 200 rotates at different preset angles relative to the valve body 100, the connection grooves 210 can be communicated with adjacent communication holes 120, and the through passage 220 can be communicated with adjacent or non-adjacent communication holes 120.

In general, in order to connect two non-adjacent communication holes 120, a manner of enlarging the length of the connection groove 210 is generally adopted to connect the two non-adjacent communication holes 120, but such arrangement increases the space occupied by a single connection groove 210 on the spool 200, thereby reducing the number of connection grooves 210 that can be provided on the spool 200, and further resulting in a reduction in the communication mode of the control valve.

According to the control valve, through the arrangement of the through channels 220, one or more connecting grooves 210 are formed between openings at two ends of the through channels 220, so that two adjacent or more communication holes 120 can be communicated through the corresponding connecting grooves 210, two non-adjacent communication holes 120 can be communicated through the corresponding through channels 220, and even two adjacent communication holes 120 with larger spacing can be communicated through the through channels 220. By doing so, the communication mode of the control valve is greatly increased, i.e. the operation mode of the thermal management system is greatly increased. In addition, the length of the original connecting groove 210 is not required to be enlarged, and the arrangement space of the connecting groove 210 on the periphery side of the valve core 200 is not occupied, that is, the number of original communication modes of the control valve is not reduced. Also, since the number of the valve cartridges 200 is one, the volume of the control valve is small, that is, the space occupied by the thermal management system is small.

In summary, the control valve and the thermal management system provided by the application solve the problem that the existing thermal management system cannot simultaneously meet the requirements of small occupied space and multiple working modes.

Specifically, in one embodiment, as shown in fig. 3-7, the number of the connecting grooves 210 is five, which are respectively defined as a first groove 211, a second groove 212, a third groove 213, a fourth groove 214, and a fifth groove 215, the number of the through passages 220 is one, and two openings defining the through passages 220 on the surface of the valve core 200 are respectively a first opening 221 and a second opening 222, and the first opening 221, the first groove 211, the second opening 222, the second groove 212, the third groove 213, the fourth groove 214, and the fifth groove 215 are sequentially distributed along the circumferential direction of the valve core 200. The number of communication holes 120 is five, and is defined as a first hole 121, a second hole 122, a third hole 123, a fourth hole 124, and a fifth hole 125, respectively, and the first hole 121, the second hole 122, the third hole 123, the fourth hole 124, and the fifth hole 125 are sequentially arranged along the circumferential direction of the valve body 100.

The control valve includes the following five communication modes:

communication mode one: when the valve core 200 is at a first preset position relative to the valve body 100, the first hole 121 is communicated with the second hole 122 through the through passage 220, the fourth hole 124 is communicated with the fifth hole 125 through the fourth groove 214, and the third hole 123 is communicated with only the second groove 212 and the third groove 213 and is in a blocking state;

and a second communication mode: when the spool 200 rotates from the first preset position relative to the valve body 100 by a first preset angle, the first hole 121 communicates with the second hole 122 through the first groove 211, the first hole 121 communicates with the second hole 122 and the third hole 123 through the through-passage 220, the third hole 123 communicates with the fourth hole 124 through the third groove 213, the fourth hole 124 communicates with the fifth hole 125 through the fourth groove 214, and the fifth hole 125 communicates with the first hole 121 through the fifth groove 215;

communication mode three: when the valve core 200 rotates from the first preset position to the valve body 100 by a second preset angle, the first hole 121 is communicated with the third hole 123 through the through channel 220, the fourth hole 124 is communicated with the fifth hole 125 through the fourth groove 214, and the second hole 122 is communicated with only the first groove 211 and is in a blocking state;

and a communication mode IV: when the valve core 200 rotates from the first preset position to the valve body 100 by a third preset angle, the second hole 122 is communicated with the fourth hole 124 through the through channel 220, the fifth hole 125 is communicated with the first hole 121 through the fourth groove 214, and the third hole 123 is communicated with only the first groove 211 and is in a blocking state;

communication mode five: when the valve core 200 rotates from the first preset position to the valve body 100 by a fourth preset angle, the third hole 123 is respectively communicated with the fourth hole 124 through the through passage 220 and the first groove 211, the fifth hole 125 is communicated with the first hole 121 through the fourth groove 214, and the second hole 122 is only communicated with the fifth groove 215 and is in a blocking state.

It should be noted that when the control valve is in the second communication mode, the first hole 121, the second hole 122, the third hole 123, the fourth hole 124, and the fifth hole 125 are in communication with each other, and at this time, the control valve is in the full communication state.

In this manner, by providing a plurality of connection grooves 210 and through passages 220, the communication mode of the control valve is greatly increased.

More specifically, in one embodiment, the spool 200 rotates clockwise relative to the valve body 100, and the first preset angle x is satisfied, 7.5 x.ltoreq.22.5, the second preset angle y is satisfied, 25 y.ltoreq.37.5, the third preset angle z is satisfied, 85 z.ltoreq.95, the fourth preset angle t is satisfied, 115 t.ltoreq.127.5.

In one embodiment, the length a of the first opening 221 along the circumferential direction of the spool 200, the length b of the second opening 222 along the circumferential direction of the spool 200, the length c of the first groove 211 along the circumferential direction of the spool 200, the length d of the second groove 212 along the circumferential direction of the spool 200, the length e of the third groove 213 along the circumferential direction of the spool 200, the length f of the fourth groove 214 along the circumferential direction of the spool 200, and the length g of the fifth groove 215 along the circumferential direction of the spool 200 satisfy a=b=d=e < g < c < f.

By providing the lengths of the respective connection grooves 210 along the circumferential direction of the spool 200 and the lengths of the two openings of the through passage 220 along the circumferential direction of the spool 200 to be the same or different, the number of control valve communication modes can be effectively increased.

In an embodiment, as shown in fig. 2 and 3, the communication hole 120 has a third opening 126 and a fourth opening 127, the third opening 126 is disposed toward the radial direction of the valve cartridge 200, the communication hole 120 can communicate with a connection groove 210 or a through passage 220 provided on the valve cartridge 200 through the third opening 126, the fourth opening 127 is disposed toward the axial direction of the valve cartridge 200, and the communication hole 120 can communicate with an external pipe through the fourth opening 127.

By the arrangement, the valve core 200 and the external pipeline with different orientations can be communicated through the communication hole 120, so that the difficulty in setting the control valve in the thermal management system is reduced.

In an embodiment, as shown in fig. 2 and 3, the valve core 200 includes a first end plate 230, a second end plate 240, and a plurality of partition plates 250, where the first end plate 230 and the second end plate 240 are parallel and spaced apart, the partition plates 250 are disposed between the first end plate 230 and the second end plate 240, and the first end plate 230, the second end plate 240, and the plurality of partition plates 250 respectively enclose to form a plurality of connection slots 210 and through passages 220.

By the arrangement, the processing difficulty of the valve core 200 is greatly reduced, and the processing efficiency of the control valve is improved.

Specifically, in one embodiment, divider plate 250, first end plate 230, and second end plate 240 are integrally injection molded pieces.

Thus, the structural strength of the control valve is greatly improved.

In one embodiment, as shown in fig. 2, the control valve includes a driving head 300 and a driving shaft 400, wherein one end of the driving shaft 400 is connected to the valve core 200, and the other end of the driving shaft 400 is in meshed connection with the driving head 300, so that the driving head 300 can drive the valve core 200 to rotate relative to the valve body 100 through the driving shaft 400.

Therefore, the structure of the control valve is simplified, and the control difficulty of the control valve is reduced.

It should be noted that, a driving motor (not shown) and a plurality of transmission gear structures (not shown) are disposed in the driving head 300, the transmission gear structures are engaged with the driving shaft 400, and the driving motor drives the driving shaft 400 to rotate through the transmission gear structures.

Further, in one embodiment, the valve cartridge 200 and the drive shaft 400 are integrally formed.

Still further, the valve cartridge 200 and the drive shaft 400 are integrally injection molded.

In an embodiment, as shown in fig. 2, the driving head 300 includes a first housing 310 and a second housing 320, the first housing 310 and the second housing 320 are connected together by laser welding or ultrasonic welding, and the driving motor and the plurality of transmission gear structures are all disposed in a space defined by the first housing 310 and the second housing 320.

In one embodiment, as shown in fig. 2, the control valve further includes a cover 500, the cover 500 covers an end of the valve body 100 near the driving head 300 and is fixedly and sealingly connected with the valve body 100, and the driving shaft 400 is disposed through the cover 500 and movably and sealingly engaged with the cover 500.

Further, as shown in fig. 2, a plurality of sealing rings 410 are sleeved on the outer side of the driving shaft 400, wherein one part of the sealing rings 410 is used for enhancing the sealing effect between the driving shaft 400 and the driving head 300, and the other part of the sealing rings 410 is used for enhancing the sealing effect between the driving shaft 400 and the valve body 100.

In one embodiment, as shown in fig. 2, the control valve further includes a planar gasket 600, and the planar gasket 600 is embedded in an end of the valve body 100 away from the driving head 300.

In one embodiment, as shown in fig. 2, the control valve further includes a flexible sealing gasket 700, the flexible sealing gasket 700 is disposed between the valve core 200 and the valve body 100, and an outer end of the flexible sealing gasket 700 is fixed to an inner wall of the valve body 100, and an inner end of the flexible sealing gasket 700 is movably and sealingly engaged with the valve core 200.

By providing the flexible sealing gasket 700, the gap between the valve core 200 and the valve body 100 is greatly reduced, i.e., the sealability of the control valve is greatly enhanced.

Specifically, in one embodiment, the flexible sealing gasket 700 may be made of rubber or silica gel, which is not illustrated herein.

The present application also provides a thermal management system comprising a control valve as described in any one of the embodiments above.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of the present application is to be determined by the following claims.

Claims (10)

1. The utility model provides a control valve, its characterized in that includes valve body (100) and single case (200), valve body (100) are equipped with valve pocket (110), one side of valve body (100) is equipped with a plurality of through self lateral wall and intercommunication communication hole (120) of valve pocket (110), case (200) rotationally locate in valve pocket (110), the week side of case (200) is equipped with a plurality of spread grooves (210) along self circumference, and case (200) still are equipped with through channel (220), through channel (220) run through case (200), through channel (220) have two openings that the interval set up at the surface of case (200), and be equipped with one or more between two openings of through channel (220) spread grooves (210), when case (200) rotate different default angles with respect to valve body (100), spread groove (210) can communicate adjacent a plurality of communication hole (120), through channel (220) can communicate adjacent or not adjacent a plurality of communication hole (120).

2. The control valve according to claim 1, wherein the number of the connection grooves (210) is five, respectively defined as a first groove (211), a second groove (212), a third groove (213), a fourth groove (214), and a fifth groove (215), the number of the through passages (220) is one, and two openings defining the through passages (220) on the surface of the spool (200) are a first opening (221) and a second opening (222), respectively, the first opening (221), the first groove (211), the second opening (222), the second groove (212), the third groove (213), the fourth groove (214), and the fifth groove (215) are sequentially distributed along the circumferential direction of the spool (200); the number of the communication holes (120) is five, and the communication holes are respectively defined as a first hole (121), a second hole (122), a third hole (123), a fourth hole (124) and a fifth hole (125), and the first hole (121), the second hole (122), the third hole (123), the fourth hole (124) and the fifth hole (125) are sequentially arranged along the circumferential direction of the valve body (100);

the control valve includes the following five communication modes:

communication mode one: when the valve core (200) is at a first preset position relative to the valve body (100), the first hole (121) is communicated with the second hole (122) through the through channel (220), the fourth hole (124) is communicated with the fifth hole (125) through the fourth groove (214), and the third hole (123) is only communicated with the second groove (212) and the third groove (213) and is in a blocking state;

and a second communication mode: when the valve core (200) rotates relative to the valve body (100) from a first preset position by a first preset angle, the first hole (121) is communicated with the second hole (122) through the first groove (211), the first hole (121) is respectively communicated with the second hole (122) and the third hole (123) through the through channel (220), the third hole (123) is communicated with the fourth hole (124) through the third groove (213), the fourth hole (124) is communicated with the fifth hole (125) through the fourth groove (214), and the fifth hole (125) is communicated with the first hole (121) through the fifth groove (215);

communication mode three: when the valve core (200) rotates a second preset angle relative to the valve body (100) from a first preset position, the first hole (121) is communicated with the third hole (123) through the through channel (220), the fourth hole (124) is communicated with the fifth hole (125) through the fourth groove (214), and the second hole (122) is only communicated with the first groove (211) and is in a blocking state;

and a communication mode IV: when the valve core (200) rotates a third preset angle relative to the valve body (100) from a first preset position, the second hole (122) is communicated with the fourth hole (124) through the through channel (220), the fifth hole (125) is communicated with the first hole (121) through the fourth groove (214), and the third hole (123) is only communicated with the first groove (211) and is in a blocking state;

communication mode five: when the valve core (200) rotates by a fourth preset angle relative to the valve body (100) from a first preset position, the third hole (123) is communicated with the fourth hole (124) through the through channel (220) and the first groove (211) respectively, the fifth hole (125) is communicated with the first hole (121) through the fourth groove (214), and the second hole (122) is only communicated with the fifth groove (215) and is in a blocking state.

3. The control valve according to claim 2, characterized in that the spool (200) rotates clockwise with respect to the valve body (100) and the first preset angle x is satisfied, 7.5 ° x is equal to or less than 22.5 °, the second preset angle y is satisfied, 25 ° y is equal to or less than 37.5 °, the third preset angle z is satisfied, 85 ° z is equal to or less than 95 °, the fourth preset angle t is satisfied, 115 ° t is equal to or less than 127.5 °.

4. The control valve according to claim 2, characterized in that a length a of the first opening (221) along the spool (200) circumferential direction, a length b of the second opening (222) along the spool (200) circumferential direction, a length c of the first groove (211) along the spool (200) circumferential direction, a length d of the second groove (212) along the spool (200) circumferential direction, a length e of the third groove (213) along the spool (200) circumferential direction, a length f of the fourth groove (214) along the spool (200) circumferential direction, and a length g of the fifth groove (215) along the spool (200) circumferential direction satisfy a = b = d = e < g < c < f.

5. The control valve according to claim 1, characterized in that the communication hole (120) has a third opening (126) and a fourth opening (127), the third opening (126) being disposed toward a radial direction of the spool (200), the communication hole (120) being capable of communicating with the connection groove (210) or the through passage (220) provided on the spool (200) through the third opening (126), the fourth opening (127) being disposed toward an axial direction of the spool (200), the communication hole (120) being capable of communicating with an external pipe through the fourth opening (127).

6. The control valve according to claim 1, wherein the valve spool (200) includes a first end plate (230), a second end plate (240) and a plurality of partition plates (250), the first end plate (230) and the second end plate (240) are arranged in parallel and at intervals, the partition plates (250) are arranged between the first end plate (230) and the second end plate (240), and the first end plate (230), the second end plate (240) and the plurality of partition plates (250) are respectively surrounded to form a plurality of connecting grooves (210) and the through passages (220).

7. The control valve according to claim 1, further comprising a drive head (300) and a drive shaft (400), wherein one end of the drive shaft (400) is connected to the valve core (200), and the other end is in meshed connection with the drive head (300), so that the drive head (300) can drive the valve core (200) to rotate relative to the valve body (100) through the drive shaft (400).

8. The control valve of claim 7, wherein the spool (200) and the drive shaft (400) are integrally formed.

9. The control valve according to claim 1, further comprising a flexible sealing gasket (700), wherein the flexible sealing gasket (700) is disposed between the valve core (200) and the valve body (100), and an outer end of the flexible sealing gasket (700) is fixedly disposed on an inner wall of the valve body (100), and an inner end of the flexible sealing gasket (700) is movably and sealingly engaged with the valve core (200).

10. A thermal management system comprising the control valve of any one of claims 1-9.