CN219639532U - Four-way valve, pipeline connecting device and thermal management assembly - Google Patents

Abstract

The utility model relates to a four-way valve, a pipeline connecting device and a thermal management assembly, wherein the four-way valve comprises a valve body and a valve core; the valve body is internally provided with an accommodating space and four interfaces communicated with the accommodating space; four bosses are arranged at the bottom of the accommodating space; an interface is arranged between every two bosses in the circumferential direction of the accommodating space; the boss and the interface are arranged at intervals in the axial direction of the accommodating space; the four bosses are arranged in a pairwise manner, and the four interfaces are arranged in a pairwise manner; the valve core is rotatably arranged in the accommodating space and is in sealing contact with the valve body, and the valve core divides the accommodating space into two accommodating cavities; the valve core is provided with a communication hole along the radial direction of the accommodating space; the communication hole is communicated or not communicated with two interfaces which are oppositely arranged; two notches are arranged at two ends of the valve core, and the two notches are respectively clamped or dislocated with two oppositely arranged bosses. The four-way valve can realize any two-port communication or four-port communication, so that the use flexibility of the four-way valve is improved.

Description

Four-way valve, pipeline connecting device and thermal management assembly

Technical Field

The utility model belongs to the technical field of reversing valves, and particularly relates to a four-way valve, a pipeline connecting device and a thermal management assembly.

Background

The reversing valve is a control valve widely used in pipeline connection and is used for controlling the reversing of fluid and switching different flow paths. Among them, the four-way valve is a common reversing valve. The four-way valve comprises a valve body and a valve core arranged in the valve body, and four openings A, B, C, D are formed in the valve body. The existing four-way valves mostly have the following two or three working states, namely, state one: AB opening is communicated, and CD opening is communicated; state two: AD opening communication and BC opening communication; state three: the AC opening communicates and the BD opening communicates. However, the three states can only realize one-in-one-out or two-in-two-out communication modes, so that the four-way valve has single function and single application scene, and can not meet the requirement of more diversified application scenes.

Disclosure of Invention

The utility model provides a four-way valve, a pipeline connecting device and a thermal management assembly, so as to increase the use flexibility of the four-way valve.

The embodiment of the utility model provides a four-way valve, which comprises a valve body and a valve core;

an accommodating space and four interfaces communicated with the accommodating space are arranged in the valve body; four bosses are arranged at the bottom of the accommodating space; in the circumferential direction of the accommodating space, an interface is arranged between every two bosses; the boss and the interface are arranged at intervals in the axial direction of the accommodating space; the four bosses are arranged in a pairwise and pairwise manner, and the four interfaces are arranged in a pairwise and pairwise manner;

the valve core is rotatably arranged in the accommodating space and is in sealing contact with the valve body, and the valve core divides the accommodating space into two accommodating cavities;

a communication hole is arranged on the valve core along the radial direction of the accommodating space; the communication hole is communicated or not communicated with the two interfaces which are oppositely arranged;

two notches are arranged at two ends of the valve core, and the two notches are respectively clamped or misplaced with the two oppositely arranged bosses, so that the two accommodating cavities are isolated or communicated.

Optionally, the valve core comprises a valve core body and a plugging part connected with the valve core body;

the communication hole and the two notches are arranged on the valve core body; when the communication hole is not communicated with two interfaces which are arranged oppositely and the two notches are respectively staggered with two bosses which are arranged oppositely, the plugging part plugs or does not plug any one interface.

Optionally, the valve core body includes a central portion, and a first connection portion and a second connection portion extending from opposite ends of the central portion in a radial direction of the accommodation space; the communication hole penetrates through the first connecting part, the central part and the second connecting part; the first connecting part and the second connecting part are respectively provided with a notch; one side of the first connecting part is offset to extend out of the plugging part.

Optionally, a valve core shaft hole is formed in the valve body;

the valve core further comprises a mounting shaft arranged on the valve core body; the mounting shaft is inserted into the valve core shaft hole.

Optionally, the valve body comprises a housing and an end cap; the shell and the end cover are connected in a sealing way so as to form the accommodating space between the shell and the end cover; four interfaces are arranged on the shell, and four bosses are arranged in the shell.

Optionally, the housing comprises a housing body and four connection tubes extending from the periphery of the housing body; the interfaces are arranged on the shell body, and each interface is correspondingly communicated with one connecting pipe.

Optionally, the extending direction of the connecting tube is inclined relative to the radial direction of the accommodating space, and the inclined direction of the connecting tube is the same as the rotating direction of the valve core.

Optionally, the four-way valve further comprises a driving mechanism; the driving mechanism is connected with the valve core and is used for driving the valve core to rotate along the central shaft of the valve core.

Optionally, the four-way valve further comprises a limiting mechanism arranged on the valve body; the limiting mechanism is connected with the valve core and used for limiting the valve core to rotate along the same direction.

Optionally, the limiting mechanism comprises a ratchet, a pawl, a rotating shaft, an elastic piece and a fixing piece;

the ratchet wheel is connected with the valve core; the rotating shaft and the fixing piece are arranged on the valve body; the pawl is sleeved on the rotating shaft, one end of the pawl in the radial direction of the rotating shaft is abutted against the ratchet wheel, the other end of the pawl in the radial direction of the rotating shaft is connected with one end of the elastic piece, and the other end of the elastic piece is connected with the fixing piece; the pawl is used for limiting the ratchet wheel to rotate in the same direction.

The utility model also provides a pipeline connecting device which comprises the four-way valve according to any one of the technical schemes.

The utility model also provides a thermal management assembly comprising the pipeline connecting device according to any one of the technical schemes.

In the four-way valve, the pipeline connecting device and the thermal management assembly provided by the embodiment of the utility model, the valve core is matched with the valve body, so that the four-way valve has four working modes, and any two interfaces or four interfaces can be communicated, thereby realizing a communication mode of one inlet and one outlet, two inlets and two outlets, one inlet and three outlets and three inlets and one outlet, increasing the communication mode of the four-way valve, increasing the use flexibility of the four-way valve, enabling the four-way valve to be suitable for more application scenes, improving the universality of the four-way valve, and being simple in structure and convenient to produce and assemble.

Drawings

FIG. 1 is a schematic diagram of a four-way valve according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an explosion structure of a four-way valve according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a housing according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an end cap according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of a valve element according to an embodiment of the present utility model;

FIG. 6 is a schematic view of another angle of the valve element according to an embodiment of the present utility model;

FIG. 7 is a cross-sectional view of a four-way valve according to one embodiment of the present utility model in a first operating state;

FIG. 8 is a cross-sectional view of a four-way valve according to an embodiment of the present utility model in a sixth operating state;

FIG. 9 is a cross-sectional view of a four-way valve according to one embodiment of the present utility model in a second operating state;

FIG. 10 is a cross-sectional view of a four-way valve according to one embodiment of the present utility model in a third operating state;

fig. 11 is two cross-sectional views of a four-way valve according to an embodiment of the present utility model in a fourth operating state.

Reference numerals in the specification are as follows:

1. a valve body; 11. a housing; 111. a housing body; 112. connecting pipe; 113. an interface; A. a first interface; B. a second interface; C. a third interface; D. a fourth interface; 114. a boss; E. a first boss; F. a second boss; G. a third boss; H. a fourth boss; 115. a valve core shaft hole; 116. sealing grooves; 117. a first mounting lug; 118. a first mounting hole; 12. an end cap; 121. an end cap body; 122. the second mounting lugs; 123. a second mounting hole; 124. avoidance holes; 125. a mounting column; 126. a fourth mounting hole; 13. an accommodation space; 131. a receiving chamber; 2. a valve core; 21. a valve core body; 211. a center portion; 212. a first connection portion; 213. a second connecting portion; 214. a communication hole; 215. a notch; 22. a blocking part; 23. a mounting shaft; 24. a connecting shaft; 25. a mounting position; 3. a driving motor; 31. a fixed case; 32. an output shaft; 33. a third mounting lug; 34. a third mounting hole; 4. a limiting mechanism; 41. a ratchet wheel; 42. a pawl; 43. an elastic member; 44. a fixing member; 45. a rotation shaft; 5. a seal ring; 6. a first connecting bolt; 7. and a second connecting bolt.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

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 one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

As shown in fig. 1 to 6, the four-way valve provided by the embodiment of the utility model comprises a valve body 1 and a valve core 2; the valve body 1 is internally provided with an accommodating space 13 and four interfaces 113 communicated with the accommodating space 13; four bosses 114 are arranged at the bottom of the accommodating space 13; an interface 113 is provided between each two bosses 114 in the circumferential direction of the accommodation space 13; the boss 114 and the interface 113 are arranged at intervals in the axial direction of the accommodation space 13; the four bosses 114 are arranged in a pairwise opposite manner, and the four interfaces 113 are arranged in a pairwise opposite manner; the valve core 2 is rotatably arranged in the accommodating space 13, the valve core 2 is in sealing contact with the valve body 1, and the valve core 2 divides the accommodating space 13 into two accommodating cavities 131; the valve core 2 is provided with a communication hole 214 along the radial direction of the accommodating space 13; the communication hole 214 communicates with or does not communicate with the two interfaces 113 provided oppositely; two notches 215 are arranged at two ends of the valve core 2, and the two notches 215 are respectively clamped or dislocated with two bosses 114 which are oppositely arranged, so that the two accommodating cavities 131 are isolated or communicated.

As an example, the valve core 2 is in sealing contact with the valve body 1, which means that the positions where the valve core 2 is in sealing contact with the valve body 1. That is, at the position where the valve body 1 is in sealing contact with the valve element 2, the fluid cannot pass through, or the fluid can flow only in a very small amount, and the amount of the flowing fluid does not affect the normal operation of the four-way valve. For example, the valve core 2 and the valve body 1 are in clearance fit, so that the valve core 2 and the valve body 1 can rotate relatively and realize sealing.

As an example, the four interfaces 113 include a first interface a, a second interface B, a third interface C, and a fourth interface D, which are sequentially provided; the first interface A and the third interface C are arranged oppositely, and the second interface B and the fourth interface D are arranged oppositely. The four bosses 114 include a first boss E, a second boss F, a third boss G, and a fourth boss H, which are sequentially disposed; the first boss E and the third boss G are oppositely arranged, and the second boss F and the fourth boss H are oppositely arranged; the first boss E is located between the fourth interface D and the first interface A, the second boss F is located between the first interface A and the second interface B, the third boss G is located between the second interface B and the third interface C, and the fourth boss H is located between the third interface C and the fourth interface D.

As shown in fig. 7 and 9 to 11, the valve cartridge 2 is rotatably provided in the accommodation space 13, and the four-way valve can be switched between the following several operation states by the cooperation of the four ports 113, the communication hole 214, the two notches 215, and the four bosses 114.

As shown in fig. 7, in the first working state, the communication hole 214 communicates with the second interface B and the fourth interface D, and the two notches 215 and the four bosses 114 are distributed in a staggered manner, so that the two accommodating chambers 131 communicate, and the first interface a and the third interface C communicate through the two accommodating chambers 131. That is, the first interface a and the third interface C communicate through the accommodation space 13, and the second interface B and the fourth interface D communicate through the communication hole 214; namely, the working mode a that the first interface A is communicated with the third interface C, and the second interface B is communicated with the fourth interface D.

As shown in fig. 9, in the second operation state, the communication hole 214 is not communicated with any two oppositely arranged ports 113, i.e., the communication hole 214 is blocked; the first boss E and the third boss G are respectively clamped in the two notches 215, so that the two accommodating cavities 131 are isolated; so that the first port a and the second port B communicate through one accommodation chamber 131, and the third port C and the fourth port D communicate through the other accommodation chamber 131; namely, the working mode B that the first interface A is communicated with the second interface B, and the third interface C is communicated with the fourth interface D.

As shown in fig. 10, in the third operating state, the communication hole 214 does not communicate with any two of the oppositely disposed ports 113, i.e., the communication hole 214 is blocked; the two notches 215 are staggered with the four bosses 114, so that the two accommodating cavities 131 are communicated, and the first interface A, the second interface B, the third interface C and the fourth interface D are communicated through the two accommodating cavities 131. That is, the first interface a, the second interface B, the third interface C, and the fourth interface D communicate through the accommodation space 13; i.e. the operation mode c in which the four interfaces 113 communicate with each other.

As shown in fig. 11, in the fourth operating state, the communication hole 214 communicates with the first port a and the third port C, and the two notches 215 and the four bosses 114 are all distributed in a staggered manner, so that the two accommodating chambers 131 communicate with each other, and the second port B and the fourth port D communicate with each other through the two accommodating chambers 131. That is, the first interface a and the third interface C communicate through the communication hole 214, and the second interface B and the fourth interface D communicate through the accommodation space 13; namely, the working mode a that the first interface A is communicated with the third interface C, and the second interface B is communicated with the fourth interface D. That is, the first operating state and the fourth operating state are two forms of the operating mode a.

In the fifth working state, the communication hole 214 is not communicated with any two oppositely arranged interfaces 113, namely the communication hole 214 is blocked; the second boss F and the fourth boss H are respectively clamped in the two notches 215, so that the two accommodating cavities 131 are isolated; so that the second port B and the third port C communicate through one accommodation chamber 131, and the fourth port D and the first port a communicate through the other accommodation chamber 131; namely, the working mode D is that the second interface B is communicated with the third interface C, and the fourth interface D is communicated with the first interface A.

In the four-way valve provided by the embodiment of the utility model, the valve core 2 is matched with the valve body 1, so that the four-way valve has four working modes, any two interfaces 113 can be communicated or four interfaces 113 can be communicated, and thus, the communication modes of one inlet and one outlet, two inlets and two outlets, one inlet and three outlets and three inlets and one outlet are realized, the communication modes of the four-way valve are increased, the use flexibility of the four-way valve is increased, the four-way valve can be suitable for more application scenes, the universality of the four-way valve is improved, and the four-way valve has a simple structure and is convenient to produce and assemble.

In one embodiment, as shown in fig. 5, 6, 8 and 10, the valve cartridge 2 includes a cartridge body 21 and a blocking portion 22 connected to the cartridge body 21; the communication hole 214 and the two notches 215 are provided on the spool body 21; when the communication hole 214 is not communicated with the two ports 113 arranged oppositely and the two notches 215 are respectively dislocated with the two bosses 114 arranged oppositely, the blocking part 22 blocks or does not block any one port 113.

As an example, as shown in fig. 10, when the communication hole 214 does not communicate with the two ports 113 provided opposite to each other, and the two notches 215 are respectively offset from the two bosses 114 provided opposite to each other, the blocking portion 22 does not block any one of the ports 113. That is, the inner wall of the valve body 1 closes the communication hole 214; the two notches 215 are staggered with the four bosses 114, so that the two accommodating cavities 131 are communicated; so that the first port a, the second port B, the third port C and the fourth port D are communicated through the accommodating space 13, and the four-way valve is still in the third working state, i.e. the working mode C.

As an example, as shown in fig. 8, when the communication hole 214 does not communicate with the two ports 113 provided opposite to each other, and the two notches 215 are respectively offset from the two bosses 114 provided opposite to each other, the blocking portion 22 blocks any one of the ports 113. That is, the inner wall of the valve body 1 closes the communication hole 214; the two notches 215 are staggered with the four bosses 114, so that the two accommodating cavities 131 are communicated; the blocking part 22 blocks any one of the connectors 113; so that one of the four ports 113 is closed and the remaining three ports 113 are communicated through the accommodating space 13.

In the sixth working state, the communication hole 214 is not communicated with any two oppositely arranged interfaces 113, namely the communication hole 214 is blocked; the blocking part 22 blocks the fourth interface D; the two notches 215 are staggered with the four bosses 114, so that the two accommodating cavities 131 are communicated, and the first interface A, the second interface B and the third interface C are communicated through the two accommodating cavities 131. That is, the first port a, the second port B, and the third port C communicate through the accommodation space 13, and the blocking portion 22 blocks the fourth port D; namely, the working mode e that the first interface A, the second interface B and the third interface C are communicated and the fourth interface D is closed is adopted.

In the seventh operating state, the communication hole 214 is not communicated with any two oppositely arranged interfaces 113, namely the communication hole 214 is blocked; the blocking part 22 blocks the first joint A; the two notches 215 are staggered with the four bosses 114, so that the two accommodating cavities 131 are communicated, and the second interface B, the third interface C and the fourth interface D are communicated through the two accommodating cavities 131. That is, the second port B, the third port C, and the fourth port D communicate through the accommodation space 13, and the blocking portion 22 blocks the first port a; namely, the working mode f in which the second interface B, the third interface C and the fourth interface D are communicated and the first interface A is closed.

In the eighth working state, the communication hole 214 is not communicated with any two oppositely arranged interfaces 113, namely the communication hole 214 is blocked; the blocking part 22 blocks the second interface B; the two notches 215 are staggered with the four bosses 114, so that the two accommodating cavities 131 are communicated, and the third interface C, the fourth interface D and the first interface A are communicated through the two accommodating cavities 131. That is, the third port C, the fourth port D, and the first port a communicate through the accommodation space 13, and the blocking portion 22 blocks the second port B; the working mode g is that the third interface C, the fourth interface D and the first interface A are communicated, and the second interface B is closed.

In the ninth working state, the communication hole 214 is not communicated with any two oppositely arranged interfaces 113, namely the communication hole 214 is blocked; the blocking part 22 blocks the third interface C; the two notches 215 are staggered with the four bosses 114, so that the two accommodating cavities 131 are communicated, and the fourth interface D, the first interface A and the second interface B are communicated through the two accommodating cavities 131. That is, the fourth port D, the first port a, and the second port B communicate through the accommodation space 13, and the blocking portion 22 blocks the third port C; namely, a working mode h in which the fourth interface D, the first interface A and the second interface B are communicated and the third interface C is closed.

In this example, set up the shutoff portion 22 that is used for shutoff arbitrary interface 113 on case body 21 for four operating modes have been increased to the four-way valve, can realize arbitrary three interface 113 intercommunication, thereby realize one advance two and two advance one intercommunication modes, and the function of four-way valve is more comprehensive, has greatly increased the flexibility of use of four-way valve, can be applicable to more application scenarios, has improved the commonality of four-way valve.

Eight modes of operation of the four-way valve are shown in table 1 below:

TABLE 1

As a preferred embodiment, four ports 113 are uniformly distributed around the accommodating space 13, four bosses 114 are uniformly distributed around the accommodating space 13, and each boss 114 is located at a middle position of two adjacent ports 113. That is, every adjacent two of the interfaces 113 corresponds to a rotation angle of 90 °, every adjacent two of the bosses 114 corresponds to a rotation angle of 90 °, and every adjacent one of the interfaces 113 and one of the bosses 114 corresponds to a rotation angle of 45 °. That is, the rotation angle at which the four-way valve is switched between any two operation states is a multiple of 15 °. Taking the four-way valve in the first working state as the initial position, the valve core 2 rotates anticlockwise to rotate forwards, for example, the valve core 2 rotates forwards for one circle, and the state of the four-way valve is switched as shown in the following table 2.

TABLE 2

In one embodiment, as shown in fig. 5 and 6, the spool body 21 includes a central portion 211, and first and second connection portions 212 and 213 extending from opposite ends of the central portion 211 in the radial direction of the accommodation space 13; the communication hole 214 penetrates the first connection portion 212, the center portion 211, and the second connection portion 213; the first connecting portion 212 and the second connecting portion 213 are respectively provided with a notch 215; one side of the first connection portion 212 is offset to extend beyond the blocking portion 22.

In this example, the first connection portion 212 and the second connection portion 213 are located in the same radial direction of the accommodating space 13 and symmetrically disposed at both sides of the center portion 211, ensuring that the first connection portion 212 maintains sealing contact with the inner wall of the valve body 1 and the second connection portion 213 maintains sealing contact with the inner wall of the valve body 1 when the valve body 2 rotates, so that the four-way valve can be smoothly switched between the respective operation modes. The valve core 2 is integrally formed, so that the integral strength of the valve core 2 is ensured, the processing technology is simpler, the number of parts of the four-way valve is reduced, and the assembly is simpler and more convenient.

In the present embodiment, the blocking portion 22 is a fan-shaped blocking portion 22; by such design, the volume of the plugging portion 22 is reduced as much as possible while the plugging port 113 is ensured. Preferably, the fan-shaped plug 22 corresponds to a central angle of 15 °.

In one embodiment, as shown in fig. 3 and 5, the valve body 1 is provided with a spool shaft hole 115; the spool 2 further includes a mounting shaft 23 provided on the spool body 21; the mounting shaft 23 is inserted into the spool shaft hole 115. In the example, the mounting shaft 23 is inserted into the valve core shaft hole 115, so that the valve body 1 and the valve core 2 are conveniently assembled and positioned, and the positioning precision is improved; meanwhile, when the valve core 2 rotates, the mounting shaft 23 rotates around the central axis of the valve core shaft hole 115, so that the rotation of the valve core 2 is limited, the valve core 2 can only rotate around the central axis of the valve core, the valve core 2 is prevented from moving in other directions, and the rotation of the valve core 2 is more stable.

In one embodiment, as shown in fig. 2-4, the valve body 1 includes a housing 11 and an end cap 12; the housing 11 and the end cap 12 are hermetically connected to form an accommodating space 13 therebetween; four interfaces 113 are provided on the housing 11 and four bosses 114 are provided in the housing 11.

In this example, one end of the housing 11 is open; the end cover 12 is covered at the opening end of the shell 11 and is connected with the shell 11 in a sealing way, so that an accommodating space 13 is formed between the end cover and the shell; the valve body 1 has the advantages of simple structure, convenient assembly and easy maintenance.

In this embodiment, a seal groove 116 is provided on the housing 11, a seal ring 5 is embedded in the seal groove 116, and the housing 11 and the end cover 12 are connected in a sealing manner through the seal ring 5.

In one embodiment, as shown in fig. 2 and 3, the housing 11 includes a housing body 111 and four connection pipes 112 extending from the outer circumference of the housing body 111; the interfaces 113 are disposed on the housing body 111, and each interface 113 is correspondingly connected to a connection pipe 112. In this example, a connecting pipe 112 extends outwards from a position corresponding to each interface 113 of the housing body 111, and the connecting pipe 112 is used for connecting with an external pipeline, so that the connection between the four-way valve and the external pipeline is simpler and more convenient.

In one embodiment, as shown in fig. 3 and 7, the extension direction of the adapter 112 is inclined with respect to the radial direction of the accommodating space 13, and the inclination direction of the adapter 112 is the same as the rotation direction of the spool 2.

In this example, each of the connection pipes 112 extends obliquely in the same direction as the corresponding interface 113, and the direction in which the connection pipe 112 is inclined radially with respect to the accommodation space 13 is opposite to the rotation direction of the spool 2. Taking the case that the valve core 2 rotates in the counterclockwise direction as an example, the radial direction of the connecting tube 112 relative to the housing body 111 is inclined towards the counterclockwise direction, so that the fluid flowing into the accommodating space 13 through the connecting tube 112 applies an impact force for rotating the valve core 2 in the clockwise direction to the valve core 2, and the impact of the fluid to the valve core 2 can be counteracted due to the rotation of the valve core 2 in the counterclockwise direction, so that the valve core 2 is prevented from rotating under the impact of the fluid, the four-way valve is kept in a corresponding working state, and the stability of the four-way valve is ensured.

In this embodiment, the opening end of the shell body 111 extends outwards to form a first mounting lug 117, and a first mounting hole 118 is formed in the first mounting lug 117; the end cover 12 comprises an end cover main body 121 covered on the shell main body 111 and a second mounting lug 122 extending from the end cover main body 121, the second mounting lug 122 is opposite to the first mounting lug 117, a second mounting hole 123 communicated with the first mounting hole 118 is formed in the second mounting lug 122, and the first connecting bolt 6 is arranged in the first mounting hole 118 and the second mounting hole 123 in a penetrating mode, so that the shell 11 is fixedly connected with the end cover 12. That is, the housing 11 and the end cover 12 are fixed by the first connecting bolt 6, so that the connection is stable, the structure is simple, and the disassembly and assembly are convenient.

Preferably, four first mounting lugs 117 are provided, one first mounting lug 117 being provided between each two of the connection tubes 112; four second installation lugs 122 are provided, and the first installation lugs 117 and the second installation lugs 122 are arranged in a one-to-one correspondence. That is, the first and second mounting holes 118 and 123 are provided with four, respectively, and the housing 11 and the end cap 12 are fixedly coupled by the four first coupling bolts 6.

In one embodiment, as shown in fig. 1 and 2, the four-way valve further comprises a driving mechanism; the driving mechanism is connected with the valve core 2 and is used for driving the valve core 2 to rotate along the central shaft of the valve core. In the example, the driving mechanism drives the valve core 2 to rotate along the central axis of the valve core, so that the four-way valve is switched between different working modes, the control of the working mode of the four-way valve is facilitated, and the operation is convenient.

In one embodiment, as shown in fig. 1 and 2, the drive mechanism is disposed on a side of the end cap 12 facing away from the housing 11; the end cover 12 is provided with a avoidance hole 124; the valve core 2 further comprises a connecting shaft 24 arranged on the valve core body 21, a mounting position 25 is arranged on the connecting shaft 24, and the connecting shaft 24 is arranged in the avoidance hole 124 in a penetrating manner; the drive mechanism is connected to the mounting location 25. By means of the design, the assembly positions of parts of the four-way valve are reasonably planned, the overall structure of the four-way valve is more compact, and the connecting shaft 24 is matched with the avoidance hole 124, so that the valve core 2 rotates more stably.

In the present embodiment, the mounting position 25 is set as a mounting groove; the driving mechanism is a driving motor 3, and an output shaft 32 of the driving motor 3 is inserted into the mounting groove; so that the output shaft 32 of the driving motor 3 is fixedly connected with the valve core 2, and the output shaft 32 of the driving motor 3 drives the valve core 2 to rotate together.

In the present embodiment, as shown in fig. 2 and 4, a third mounting lug 33 is provided on the fixed housing 31 of the driving motor 3, and a third mounting hole 34 is provided on the third mounting lug 33; the end cover main body 121 is provided with a mounting column 125, the mounting column 125 is provided with a fourth mounting hole 126 extending along the axial direction of the mounting column, and the second connecting bolt 7 is penetrated in the third mounting hole 34 and the fourth mounting hole 126 to fixedly connect the driving motor 3 and the end cover 12. That is, the driving motor 3 and the end cover 12 are fixed through the second connecting bolt 7, so that the connection is stable, the structure is simple, and the disassembly and assembly are convenient.

In one embodiment, as shown in fig. 1 and 2, the four-way valve further comprises a limiting mechanism 4 arranged on the valve body 1; the limiting mechanism 4 is connected with the valve core 2 and is used for limiting the valve core 2 to rotate along the same direction. In this example, the limiting mechanism 4 is used to limit the rotation of the spool 2 in the same direction. That is, the valve core 2 is guaranteed to always rotate along the same direction through the limiting mechanism 4, namely, the valve core 2 can only rotate forward, the valve core 2 is prevented from being influenced by other factors to rotate reversely, and the stability of the four-way valve is guaranteed.

In one embodiment, as shown in fig. 2, the limiting mechanism 4 includes a ratchet 41, a pawl 42, a rotation shaft 45, an elastic member 43, and a fixing member 44; the ratchet wheel 41 is connected with the valve core 2; the rotary shaft 45 and the fixing piece 44 are arranged on the valve body 1, the pawl 42 is sleeved on the rotary shaft 45, one end of the pawl 42 along the radial direction of the rotary shaft 45 is abutted against the ratchet wheel 41, the other end of the pawl 42 along the radial direction of the rotary shaft 45 is connected with one end of the elastic piece 43, and the other end of the elastic piece 43 is connected with the fixing piece 44; the pawl 42 serves to restrict the ratchet 41 from rotating in the same direction. In this example, the ratchet 41 is connected to the valve core 2, so that the valve core 2 drives the ratchet 41 to rotate together; the pawl 42, the rotation shaft 45, the elastic member 43 and the fixing member 44 cooperate so that the pawl 42 abuts against the ratchet 41, and thus the ratchet 41 is restricted by the pawl 42 to rotate only in the same direction, thereby restricting the spool 2 from rotating in the same direction. That is, the valve core 2 can only rotate forward and cannot rotate reversely, so that the valve core 2 is prevented from rotating reversely due to the influence of other factors, and the stability of the four-way valve is ensured.

Preferably, the ratchet wheel 41 is provided with 24 ratchet teeth, and each ratchet tooth rotates by a corresponding rotation angle of 15 degrees.

The utility model also provides a pipeline connecting device which comprises the four-way valve in any embodiment.

The utility model also provides a thermal management assembly comprising the pipeline connecting device according to any of the embodiments.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (12)

1. A four-way valve is characterized by comprising a valve body and a valve core;

an accommodating space and four interfaces communicated with the accommodating space are arranged in the valve body; four bosses are arranged at the bottom of the accommodating space; in the circumferential direction of the accommodating space, an interface is arranged between every two bosses; the boss and the interface are arranged at intervals in the axial direction of the accommodating space; the four bosses are arranged in a pairwise and pairwise manner, and the four interfaces are arranged in a pairwise and pairwise manner;

the valve core is rotatably arranged in the accommodating space and is in sealing contact with the valve body, and the valve core divides the accommodating space into two accommodating cavities;

a communication hole is arranged on the valve core along the radial direction of the accommodating space; the communication hole is communicated or not communicated with the two interfaces which are oppositely arranged;

two notches are arranged at two ends of the valve core, and the two notches are respectively clamped or misplaced with the two oppositely arranged bosses, so that the two accommodating cavities are isolated or communicated.

2. The four-way valve according to claim 1, wherein the valve core comprises a valve core body and a blocking portion connected to the valve core body;

the communication hole and the two notches are arranged on the valve core body; when the communication hole is not communicated with two interfaces which are arranged oppositely and the two notches are respectively staggered with two bosses which are arranged oppositely, the plugging part plugs or does not plug any one interface.

3. The four-way valve according to claim 2, wherein the spool body includes a central portion, and first and second connection portions extending from opposite ends of the central portion in a radial direction of the accommodation space; the communication hole penetrates through the first connecting part, the central part and the second connecting part; the first connecting part and the second connecting part are respectively provided with a notch; one side of the first connecting part is offset to extend out of the plugging part.

4. The four-way valve according to claim 2, wherein a spool shaft hole is provided on the valve body;

the valve core further comprises a mounting shaft arranged on the valve core body; the mounting shaft is inserted into the valve core shaft hole.

5. The four-way valve according to claim 1, wherein the valve body comprises a housing and an end cap; the shell and the end cover are connected in a sealing way so as to form the accommodating space between the shell and the end cover; four interfaces are arranged on the shell, and four bosses are arranged in the shell.

6. The four-way valve according to claim 5, wherein the housing comprises a housing body and four connection tubes extending from an outer periphery of the housing body; the interfaces are arranged on the shell body, and each interface is correspondingly communicated with one connecting pipe.

7. The four-way valve according to claim 6, wherein the extension direction of the adapter tube is inclined with respect to the radial direction of the accommodating space, and the inclination direction of the adapter tube is the same as the direction in which the spool rotates.

8. The four-way valve according to claim 1, further comprising a drive mechanism; the driving mechanism is connected with the valve core and is used for driving the valve core to rotate along the central shaft of the valve core.

9. The four-way valve according to claim 1, further comprising a limiting mechanism disposed on the valve body; the limiting mechanism is connected with the valve core and used for limiting the valve core to rotate along the same direction.

10. The four-way valve according to claim 9, wherein the limit mechanism comprises a ratchet, a pawl, a rotating shaft, an elastic member, and a fixing member;

the ratchet wheel is connected with the valve core; the rotating shaft and the fixing piece are arranged on the valve body; the pawl is sleeved on the rotating shaft, one end of the pawl in the radial direction of the rotating shaft is abutted against the ratchet wheel, the other end of the pawl in the radial direction of the rotating shaft is connected with one end of the elastic piece, and the other end of the elastic piece is connected with the fixing piece; the pawl is used for limiting the ratchet wheel to rotate in the same direction.

11. A pipe connection comprising the four-way valve of any one of claims 1-10.

12. A thermal management assembly comprising the plumbing connection of claim 11.