Five-way valve for automobile thermal management system and thermal management assembly

Abstract

The utility model provides a five-way valve and a heat management assembly for an automobile heat management system, which comprise a valve body and a valve core, the middle part of the valve body is provided with an annular accommodating cavity, the bottom of the accommodating cavity is provided with a first interface, the side wall of the accommodating cavity is provided with five uniformly distributed mounting positions, and at least four mounting positions are provided with second interfaces; the valve element is configured to be a cylinder, a first communicating opening and at least two communicating grooves are formed in the outer side wall of the cylinder, a second communicating opening is formed in the bottom of the cylinder, and the first communicating opening is communicated with the second communicating opening. The valve element is rotatably arranged in the containing cavity, the valve element makes closed contact with the valve body, and at least one communicating groove communicates with the two second connectors at the same time. According to the five-way valve for the automobile thermal management system, more diversified flow path modes can be achieved through the single valve body and the motor, and the product production cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reversing valves, in particular to a five-way valve and a thermal management assembly for an automobile thermal management system. Background Art

[0002] At present, new energy vehicles are developing rapidly. In the design of new energy vehicles, space layout is still a major problem, especially the cabin space. As vehicle functions become more and more complex, in order to better improve energy utilization, designers have to collect the available energy of the whole vehicle and develop a series of energy-saving solutions such as waste heat utilization and heat pump systems. This will also introduce more complex design circuits, more pipes and valves, and put more pressure on the already cramped cabin space. Therefore, the integrated design of parts is increasingly valued and is increasingly used. Although the existing three-way valves, four-way valves, and five-way valves on the market can also be applied to the pipeline system of new energy vehicles, for some specific pipeline systems, such as the pipeline system with circuit switching of 4 working modes, the existing three-way valves and four-way valves are required to cooperate for control. In this way, not only more valves and motors need to be introduced, but also more pipes need to be introduced, which puts greater pressure on the already cramped cabin space.

[0003] The existing five-way valves can only realize limited modes and cannot meet the increasing demand for pipeline modes. Therefore, a five-way valve with multiple modes is needed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model proposes a five-way valve for an automobile thermal management system, which can achieve more diverse flow path modes through a single valve body and a motor, provide more options for automobile thermal management, and effectively reduce product production costs.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A five-way valve for an automobile thermal management system comprises a valve body and a valve core, wherein an annular accommodating cavity is provided in the middle of the valve body, a first interface is provided at the bottom of the accommodating cavity, five evenly distributed mounting positions are provided on the side wall of the accommodating cavity, and a second interface is opened on at least four of the mounting positions; the valve core is configured as a column, a first connecting port and at least two connecting grooves are provided on the outer side wall of the column, a second connecting port is provided at the bottom of the column, the first connecting port and the second connecting port are connected, and the arc length of the connecting groove is greater than the arc length of the first interface; the valve core is rotatably arranged in the accommodating cavity, the valve core is in airtight contact with the valve body, and at least one of the connecting grooves is connected to two of the second interfaces at the same time.

[0007] In one embodiment, the angle between the mounting positions on the side wall of the accommodating cavity is 72°.

[0008] In one embodiment, the arc length of the opening of the connecting groove is greater than or equal to the arc length of two adjacent second interfaces.

[0009] In one embodiment, the valve body includes a valve cover and a valve body that are interlocked with each other. An ultrasonic line and a waterproof ring are provided on the top of the valve body. The ultrasonic line and the sealing ring are adjacent to each other.

[0010] In one embodiment, the bottom of the valve body is further provided with a plurality of connection ports, and the plurality of connection ports are respectively connected to one of the second interfaces.

[0011] In one embodiment, a rotating shaft is fixedly provided on the valve core, and the cross-sectional profile of the rotating shaft is a polygon for connecting to an actuator.

[0012] In one embodiment, it also includes a sealing inner ring, which is fitted with the inner wall of the accommodating cavity, and is provided with a second opening adapted to the second interface, and the sealing inner ring is made of fluororubber or silicone; the outer edge of the first connecting port on the valve core and the outer edge of the connecting groove are both provided with a raised first sealing portion; the outer wall of the sealing inner ring is provided with a plurality of raised second sealing portions.

[0013] In one embodiment, a waterproof column is provided in the middle of the communicating groove on the valve core. The waterproof column is arranged on a side away from the center of the valve core, and a waterproof pressure strip is provided on the outer side of the waterproof column.

[0014] In one embodiment, a first limit block is further provided on the side wall of the first interface, the first limit block is arranged on one side of the central axis of the installation position, and a second limit block is provided at the bottom of the valve core. The first limit block and the second limit block abut against each other in the horizontal direction, and at least one of the second interfaces is opposite to the first connecting port.

[0015] The utility model also proposes a thermal management assembly, comprising a five-way valve for an automobile thermal management system as described in any of the above technical solutions.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The utility model can realize switching of five modes of flow paths through the cooperation of the valve body and the valve core, provides more options for the scenarios in which two flow paths are connected, increases the flexibility of use of the five-way valve, makes the five-way valve applicable to more application scenarios, improves the versatility of the five-way valve, and the five-way valve of this embodiment has a simple structure and is easy to produce and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a three-dimensional schematic diagram of embodiment 1 of the utility model;

[0020] Figure 2 This is a schematic diagram of the explosion structure of Example 1 of the utility model;

[0021] Figure 3 This is a three-dimensional schematic diagram of the valve body in Example 1 of the utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the valve body in Embodiment 1 of the utility model from another angle;

[0023] Figure 5 This is a three-dimensional schematic diagram of the valve core in Example 1 of the utility model;

[0024] Figure 6 This is a front view of the valve core in Example 1 of the utility model;

[0025] Figure 7 This is a rear view of the valve core in Embodiment 1 of the utility model;

[0026] Figure 8 It is a three-dimensional schematic diagram of the sealing inner ring in Example 1 of the utility model;

[0027] Fig. 9 This is a front cross-sectional view of Embodiment 1 of the present utility model;

[0028] Fig.10 It is a top cross-sectional view of Embodiment 1 of the present utility model;

[0029] Fig.11 This is a schematic diagram of the explosion structure of Example 2 of the utility model;

[0030] Fig.12 The figure is a schematic diagram of the valve core position in each working mode of a five-way valve for an automobile thermal management system in one embodiment of the utility model.

[0031] Figure ID:

[0032] 10-valve body; 11-first interface; 12-second interface; 13-connecting port; 14-first limit block; 15-valve cover; 16-valve body; 17-ultrasonic line; 18-waterproof ring; 20-valve core; 21-first connecting port; 22-connecting groove; 23-second connecting port; 24-rotating shaft; 25-second limit block; 26-first sealing part; 27-waterproof column; 30-sealing gasket; 31-sealing inner ring; 32-second sealing part; 40-actuator. Specific embodiments

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example 1

[0037] like Figures 1 to 8 As shown, the embodiment of the utility model discloses a five-way valve for an automobile thermal management system, comprising a valve body 10 and a valve core 20. An annular accommodating cavity is provided in the middle of the valve body 10, a first interface 11 is provided at the bottom of the accommodating cavity, five evenly distributed installation positions are provided on the side wall of the accommodating cavity, and a second interface 12 is provided on at least four installation positions;

[0038] It is understandable that if Figures 1 to 4As shown, in this embodiment, the valve body 10 includes a valve body 16 and a valve cover 15 connected by screws. The accommodating cavity and the valve core 20 are both located in the valve body 16. The accommodating cavity is a columnar space. Since the channel cross-section of the accommodating cavity is circular, a mounting position is provided every 72° on its inner wall. In this embodiment, at least four mounting positions are provided with a second interface 12, and the mounting positions without the second interface 12 are blocked. The openings of the second interfaces 12 are the same size, and every two second interfaces 12 are not connected to each other. In this embodiment, the opening of the second interface 12 is a rounded rectangle.

[0039] like Figures 5 to 7 As shown, the valve core 20 is configured as a column, and a first connecting port 21 and at least two connecting grooves 22 are provided on the outer wall of the column, and a second connecting port 23 is provided at the bottom of the column, and the first connecting port 21 and the second connecting port 23 are connected; the valve core 20 is rotatably arranged in the accommodating cavity, the valve core 20 is in closed contact with the valve body 10, and at least one connecting groove 22 is connected to two second interfaces 12 at the same time.

[0040] It can be understood that the sealing contact between the valve core 20 and the valve body 10 means that the positions where the valve core 20 and the valve body 10 are in sealing contact. In other words, at the position where the valve core 20 and the valve body 10 are in sealing contact, the fluid cannot pass through, or only a small amount of fluid can flow through, and the amount of fluid flowing through does not affect the normal operation of the five-way valve. For example, the valve core 20 and the valve body 10 are clearance-fitted, so that the valve core 20 and the valve body 10 can rotate relative to each other and achieve sealing.

[0041] Specifically, Fig. 9 , Fig.12As shown, the diameter of the valve core 20 is the same as the diameter of the accommodating cavity, the opening shape of the first communication port 21 is the same as the second interface 12 and the arc length is the same as the opening arc length of the second interface 12, the arc lengths of the two communication grooves 22 are the same and the arc length of the communication groove 22 is greater than twice the arc length of the first communication port 21, and the first communication port 21 is located between the two communication grooves 22, so that the ratio between the first communication port 21 and the two communication grooves 22 is 1:2:2; when the valve core 20 is located in the accommodating cavity, the second communication port 23 at the bottom of the valve core 20 is in contact with the first interface 11 at the bottom of the valve body 10 It is always in a connected state. When the first connecting port 21 is connected to any second interface 12, the fluid enters the valve core 20 through the first interface 11, and then flows into or out of the second interface 12 along the first connecting port 21; when the first connecting port 21 of the valve core 20 faces the direction of the installation position without the second interface 12, the first interface 11 is in a blocked state and is not connected to other interfaces; at this time, at least one connecting groove 22 is located in the projection direction of the two second interfaces 12, so that the fluid flows in the connecting groove 22 through the two second interfaces 12. In another case, when a connecting groove 22 on the valve core 20 faces the direction of the installation position without the second interface 12 and is connected to the second interface 12 on the left or right side of the installation position, the second interface 12 is not connected to other second interfaces 12;

[0042] The valve core 20 is rotatably arranged in the accommodating chamber, so that the five-way valve can be switched between the following working modes.

[0043] For ease of understanding, Fig.12 As shown, in a top view, the second interface 12 on the side wall of the lower accommodating cavity is regarded as interface 1, and interfaces 2, 3 and 4 are arranged in a counterclockwise direction, and the first interface 11 at the bottom of the accommodating cavity is regarded as interface 5. Since the five installation positions are evenly distributed, the included angles thereof are five-divided circles, each of which is 72°, and the arc length ratio between the first communication port 21 and the communication groove 22 is 1:2:2, and the total arc length is almost the same as the circumference of the valve core 20, so the rotation angle of the valve core 20 when switching between any two working modes is a multiple of 72°.

[0044] In working mode one, the valve core 20 rotates 0°, the first connecting port 21 faces the interface 1, the interface 1 is connected to the interface 5, the interface 2 and the interface 3 are connected through the connecting groove 22 on the right side of the first connecting port 21, and the interface 4 is connected to the connecting groove 22 on the left side alone, and is in the closed state.

[0045] Similarly, in working mode 2, the valve core 20 rotates 72°, the first communication port 21 faces the interface 2, the interface 2 is connected to the interface 5, and the interface 3 is connected to the interface 4.

[0046] In working mode 3, the valve core 20 rotates 144°, the first communication port 21 faces the interface 3, the interface 3 is connected to the interface 5, and the interface 1 is connected to the interface 2.

[0047] In working mode 4, the valve core 20 rotates 216°, the first communication port 21 faces the interface 4, the interface 4 is connected to the interface 5, and the interface 2 is connected to the interface 3.

[0048] In working mode five, the valve core 20 rotates 288°, the first communication port 21 faces the installation position without the second interface 12, the interface 1 and the interface 2 are connected through the communication groove 22, and the interface 3 and the interface 4 are connected through another communication groove 22. The working mode diagram of the five-way valve for the automotive thermal management system proposed in this embodiment is as follows;

[0049]

[0050]

[0051] like Figure 4 As shown, in the embodiment of the utility model, the bottom of the valve body 10 is also provided with a plurality of connection ports 13, and the plurality of connection ports 13 are respectively connected with the second interface 12. It can be understood that the connection ports 13 match the position of the installation position, and are arranged in a ring shape around the outside of the first interface 11, and each connection port 13 is connected with the adjacent second interface 12, so that the fluid flows into the accommodating cavity through the connection port 13. The pipeline of the automobile pipeline connection device usually has an outlet facing upward, and the connection port 13 and the first interface 11 are both located at the bottom of the five-way valve, so that the five-way valve can be conveniently and quickly connected to the pipeline connection device for pipeline arrangement.

[0052] like Figure 5 As shown, in the embodiment of the utility model, a rotating shaft 24 is fixedly provided on the valve core 20, and the cross-sectional profile of the rotating shaft 24 is a polygon to connect the actuator 40. It can be understood that the actuator 40 contains a motor and a reduction gear set, and the middle part of the gear at the transmission end is provided with a groove matching the cross-sectional area of ​​the rotating shaft 24. Through the cooperation of the groove and the rotating shaft 24, a single motor can drive the valve core 20 to rotate in the accommodating cavity and stop accurately at a predetermined angle, so that the five-way valve can switch between the above working modes.

[0053] like Figure 2As shown, in order to improve the tightness of the internal fluid of the valve body 10 and the valve core 20 when changing modes, a sealing gasket 30 and a sealing inner ring 31 are also provided in this embodiment. The sealing gasket 30 is embedded in the bottom of the valve body 10, and a first opening adapted to the first interface 11 and the connecting port 13 is provided on the sealing gasket 30; the sealing inner ring 31 is arranged in contact with the inner wall of the accommodating cavity, and a second opening adapted to the second interface 12 is provided on the sealing inner ring 31. In this embodiment, the sealing inner ring 31 and the sealing inner ring 31 are made of fluororubber or silicone. Other materials that can achieve a sealing effect are also within the scope of protection of this application. The outer edge of the first communication port 21 and the outer edge of the communication groove 22 on the valve core 20 are both provided with a raised first sealing portion 26. The first sealing portion 26 is strip-shaped and is arranged around the outside of the first communication port 21 and the communication groove 22, which effectively improves the tightness between the valve core 20 and the accommodating cavity, and prevents the fluid from flowing out of the gap when the valve core 20 rotates to damage the working environment.

[0054] Specifically, Figure 8 As shown, a groove is further provided between two adjacent installation positions, and a plurality of raised second sealing portions 32 are provided on the outer side of the annular sealing inner ring 31. The second sealing portions 32 are strip-shaped and staggered with each other, so as to further increase the airtightness between each interface and prevent the fluid from leaking through the gap between the sealing inner ring 31 and the accommodating cavity. The first sealing portion 26 and the second sealing portion 32 act simultaneously to improve the stability and safety of the product during operation.

[0055] In a further embodiment, Fig.10 As shown, a waterproof column 27 is provided in the middle of the connecting groove 22 on the valve core 20. The waterproof column 27 is arranged on a side away from the center of the valve core 20, and a waterproof pressure strip (not shown in the figure) is sleeved on the outer side of the waterproof column 27; when the valve core 20 is rotated to the working position, the waterproof column 27 in the middle of the connecting groove 22 is located between the two installation positions and abuts against the side wall of the accommodating cavity. By arranging a waterproof pressure strip on the outer side of the waterproof column 27, it is avoided that the fluid penetrates into the gap between the accommodating cavity and the valve core when passing through the inside of the valve to cause leakage.

[0056] like Fig. 9 As shown, a first stopper 14 is further provided on the side wall of the first interface 11, and the first stopper 14 is arranged on one side of the central axis of the installation position, and a second stopper 25 is provided at the bottom of the valve core 20, and when the first stopper 14 and the second stopper 25 abut against each other in the horizontal direction, at least one second interface 12 faces the first communication port 21. It can be understood that by providing the first stopper 14, it is possible to ensure that the initial position of the valve core 20 is determined, and then ensure that each time the valve core 20 rotates, the first communication port 21 and the communication groove 22 face the second interface 12, thereby ensuring the communication effect of the fluid passage.

[0057] The utility model can realize switching of five modes of flow path through the cooperation of the valve body and the valve core, provides more options for the scenarios where two flow paths are connected, increases the flexibility of use of the five-way valve, makes the five-way valve applicable to more application scenarios, improves the versatility of the five-way valve, and the five-way valve has a simple structure and is easy to produce and assemble.

[0058] Example 2

[0059] The difference between this embodiment and embodiment 1 is that the valve body 16 and the valve cover 15 are connected by snapping, the outer diameter of the top of the valve body 16 is reduced, and the middle of the outer edge is depressed downward to form an annular groove, a waterproof ring 18 is provided in the annular groove to improve the airtightness of the product, and an ultrasonic line 17 is also provided at the top of the outer edge. In this embodiment, a triangular welding surface is preferably used, but the shape of the welding surface is not limited. Other welding surface shapes are also within the protection scope of this application. The role of the ultrasonic line 17 is to facilitate ultrasonic welding. Ultrasonic welding does not require the entire body to vibrate and heat, but it is hoped that the welding part can be selectively heated. The ultrasonic wave causes the contact surfaces between the two plastic products to rub against each other to form a temperature rise. When the temperature reaches the melting point of the product itself, it will melt rapidly, and at the same time cool and set under a certain pressure to form a certain welding effect. This embodiment combines the ultrasonic line 17 and the waterproof ring 18 to further improve the overall airtightness of the product, ensure that the fluid will not leak from the inside of the valve body into the working environment, and improve the safety of the product.

[0060] Example 3

[0061] The utility model also provides a thermal management assembly, comprising a five-way valve for an automobile thermal management system according to any of the above embodiments.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A five-way valve for an automotive thermal management system, characterized in that: The valve body (10) comprises a valve body (10) and a valve core (20), wherein an annular accommodating cavity is provided in the middle of the valve body (10), a first interface (11) is provided at the bottom of the accommodating cavity, five evenly distributed installation positions are provided on the side wall of the accommodating cavity, and at least four of the installation positions are provided with a second interface (12); The valve core (20) is configured as a column, the outer wall of the column is provided with a first communication port (21) and at least two communication grooves (22), the bottom of the column is provided with a second communication port (23), and the first communication port (21) and the second communication port (23) are connected; The valve core (20) is rotatably disposed in the accommodating cavity, the valve core (20) is in airtight contact with the valve body (10), and at least one of the connecting grooves (22) is connected to two of the second interfaces (12) at the same time.

2. The five-way valve for an automotive thermal management system according to claim 1, characterized in that: The included angle between the mounting positions on the side wall of the accommodating cavity is 72°.

3. The five-way valve for an automotive thermal management system according to claim 2, characterized in that: The opening arc length of the connecting groove (22) is greater than or equal to the arc length of two adjacent second interfaces (12).

4. The five-way valve for an automotive thermal management system according to claim 1, characterized in that: The valve body (10) comprises a valve cover (15) and a valve body (16) which are interlocked with each other. An ultrasonic line (17) and a waterproof ring (18) are provided on the top of the valve body (16). The ultrasonic line (17) and the waterproof ring (18) are arranged adjacent to each other.

5. The five-way valve for an automotive thermal management system according to claim 1, characterized in that: The bottom of the valve body (10) is also provided with a plurality of connection ports (13), and the plurality of connection ports (13) are respectively connected to one of the second interfaces (12).

6. The five-way valve for an automotive thermal management system according to claim 1, characterized in that: A rotating shaft (24) is also fixedly provided on the valve core (20), and the cross-sectional profile of the rotating shaft (24) is a polygon for connecting to an actuator (40).

7. The five-way valve for an automotive thermal management system according to claim 1, characterized in that: It also includes a sealing inner ring (31), the sealing inner ring (31) is arranged in close contact with the inner wall of the accommodating cavity, the sealing inner ring (31) is provided with a second opening adapted to the second interface (12), and the sealing inner ring (31) is made of fluororubber or silicone; The outer edges of the first communication port (21) on the valve core (20) and the outer edges of the communication groove (22) are both provided with a raised first sealing portion (26); and the outer wall of the sealing inner ring (31) is provided with a plurality of raised second sealing portions (32).

8. The five-way valve for an automotive thermal management system according to claim 1, characterized in that: A waterproof column (27) is provided in the middle of the communication groove (22) on the valve core (20). The waterproof column (27) is arranged on a side away from the center of the valve core (20). A waterproof pressure strip is sleeved on the outer side of the waterproof column (27).

9. The five-way valve for an automotive thermal management system according to claim 1, characterized in that: A first limit block (14) is also provided on the side wall of the first interface (11), the first limit block (14) is arranged on one side of the central axis of the installation position, a second limit block (25) is provided at the bottom of the valve core (20), the first limit block (14) and the second limit block (25) abut against each other in the horizontal direction, and at least one of the second interfaces (12) is directly opposite to the first connecting port (21).

10. A thermal management assembly, characterized in that: It comprises a five-way valve for an automobile thermal management system as described in any one of claims 1 to 9.

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