Valve device

Abstract

According to the valve device, in the valve device, a coil component comprises a first coil assembly and a second coil assembly, the first coil assembly and the second coil assembly are fixed through injection molding, the coil component further comprises an electric control board and a connecting assembly, the first coil assembly is electrically connected with the electric control board, and the second coil assembly is electrically connected with the electric control board. The valve device further comprises a sensor assembly, and the electric control board is in electric connection and / or signal connection with the sensor assembly through the connecting assembly. Therefore, all the parts can be connected in a relatively concentrated mode, the system structure is simplified, and the integration degree is improved.

Description

Technical Field

[0001] The present application relates to the field of fluid control technology, and in particular to a valve device. Background Art

[0002] In a thermal management system, it is usually necessary to set up two or more independent valves, and to set up temperature and / or pressure sensors according to system requirements. Each valve usually has a coil assembly. With this arrangement, the layout of various components in the system is relatively scattered, which is not conducive to simplifying the system structure and improving efficiency. Summary of the invention

[0003] The purpose of the present application is to provide a valve device that is conducive to simplifying the system structure and improving the integration.

[0004] To achieve the above purpose, one embodiment of the present application adopts the following technical solution:

[0005] A valve device, the valve device includes a coil component, the coil component includes a first coil assembly and a second coil assembly, the first coil assembly and the second coil assembly are fixed by injection molding, the coil component also includes a plastic part, the plastic part covers at least a portion of the first coil assembly and at least a portion of the second coil assembly, the coil component also includes an electric control board and a connecting assembly, the first coil assembly is electrically connected to the electric control board, the second coil assembly is electrically connected to the electric control board, the valve device also includes a sensor assembly, the electric control board is electrically and / or signal-connected to the sensor assembly via the connecting assembly.

[0006] An embodiment of the present application provides a valve device, in which the coil component includes a first coil assembly and a second coil assembly, the first coil assembly and the second coil assembly are fixed by injection molding, the coil component also includes an electric control board and a connecting assembly, the first coil assembly is electrically connected to the electric control board, the second coil assembly is electrically connected to the electric control board, the valve device also includes a sensor assembly, and the electric control board is electrically and / or signal-connected to the sensor assembly through the connecting assembly. Such an arrangement enables the components to be relatively centrally connected, which is conducive to simplifying the system structure and improving the integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a three-dimensional structural schematic diagram of a first implementation manner of the valve device embodiment provided by the present application from one viewing angle;

[0008] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle valve device from a top view;

[0009] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle valve device along the AA plane;

[0010] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle valve device along the BB plane;

[0011] Figure 5 yes Figure 2 A three-dimensional structural schematic diagram of the middle valve device from one perspective without the coil component;

[0012] Figure 6 yes Figure 2 A schematic diagram of the structure of the central coil component viewed from above;

[0013] Figure 7 yes Figure 2 A three-dimensional structural diagram of the central coil component without the cover plate and the electric control board from one perspective;

[0014] Figure 8 yes Figure 2 A schematic diagram of the structure of the central coil assembly without the cover plate, the electric control board, and the connecting assembly from one perspective;

[0015] Fig. 9 yes Figure 7 A schematic diagram of the three-dimensional structure of the middle pin injection molded part from one perspective;

[0016] Fig.10 is a schematic structural diagram of a coil component from one perspective in a second implementation manner of the valve device embodiment;

[0017] Fig.11 yes Fig.10 A structural schematic diagram of the central coil component without the cover plate and the electric control board from one perspective;

[0018] Fig.12 yes Fig.10 A three-dimensional structural diagram of the central coil component without the cover plate and the electric control board from one perspective;

[0019] Fig.13 yes Fig.10 A three-dimensional structural diagram of the central coil component without the cover plate, the electric control board and the connecting components from one perspective;

[0020] Fig.14 yes Fig.12 A schematic diagram of the three-dimensional structure of the middle pin injection molded part from one perspective;

[0021] Fig.15 yes Fig.14 Schematic diagram of the three-dimensional structure of the middle pin injection molded part from another perspective;

[0022] Fig.16 is a schematic structural diagram of a coil component from one perspective in a third implementation manner of the valve device embodiment;

[0023] Fig.17 yes Fig.16 A schematic diagram of the structure of the central coil component from a bottom-up perspective;

[0024] Fig.18 yes Fig.16 A three-dimensional structural diagram of the central coil component without the cover plate and the electric control board from one perspective;

[0025] Fig.19 yes Fig.18 Schematic diagram of the three-dimensional structure from one perspective of the first group of pins. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. In order to fully understand the present invention, many specific details are mentioned in the following detailed description. However, it should be understood by those skilled in the art that the specific components, devices and features illustrated in the accompanying drawings and described herein are merely exemplary and should not be regarded as limiting.

[0027] Combination Figure 1-Figure 9 The valve device 100 can be used in automotive, household or commercial air conditioning cooling systems, and can also be used in automotive battery cooling systems or battery cooling systems in other fields. In the present application, the valve device 100 includes a first valve element 101, a second valve element 102 and a sensor assembly 103. The first valve element 101 and the second valve element 102 are generally used as throttling elements or switching elements or elements with both throttling and switching functions. In one embodiment of the present application, the first valve element 101 is used for small flow regulation, the second valve element 102 is used for large flow regulation, and the sensor assembly 103 is used to detect the temperature and / or pressure of the fluid at the inlet of the second valve element 102. The first valve element 101 includes a first coil assembly 11, a first valve component 1011 and a valve body 2, and the second valve element 102 includes a second coil assembly 12, a second valve component 1021 and a valve body 2. In this embodiment, the valve device 100 includes a coil component 1, a valve body 2, the first valve component 1011, the second valve component 1021 and the sensor assembly 103. The coil component 1 includes a first coil assembly 11 of the first valve element 101 and a second coil assembly 12 of the second valve element 102. The first coil assembly 11 and the second coil assembly 12 are fixed by injection molding. The first valve element 101 and the second valve element 102 share a valve body 2. The first valve component 1011, the second valve component 1021 and the sensor assembly 103 are fixedly connected to the valve body 2 respectively. The coil component 1 is connected to the valve body 2 by a screw assembly, and a sealing ring 104 is also provided between the coil component 1 and the valve body 2 for sealing.

[0028] Combination Figure 1-Figure 9In this embodiment, the first coil assembly 11 and the second coil assembly 12 are fixed by injection molding, and the coil component 1 is formed by injection molding with the first coil assembly 11 and the second coil assembly 12 as the main inserts (excluding the cover plate portion 17 to be formed below), and the coil component 1 also includes a plastic portion 13, and the plastic portion 13 covers at least a portion of the first coil assembly 11 and at least a portion of the second coil assembly 12. The coil component 1 also includes an electric control board 14 and a connecting component 15. The first coil assembly 11 is electrically connected to the electric control board 14, and the second coil assembly 12 is electrically connected to the electric control board 14. The electric control board 14 is electrically and / or signal-connected to the sensor assembly 103 through the connecting component 15. In this way, the first coil assembly 11, the second coil assembly 12, and the sensor assembly 103 can all be connected to the electric control board 14, and each component can be relatively centrally connected, which is conducive to simplifying the system structure, improving the integration, and also conducive to miniaturization of the system.

[0029] Combination Figure 1-Figure 9 In this embodiment, the coil component 1 has a housing cavity 16, the electric control board 14 is located in the housing cavity 16, and the coil component 1 also includes a cover portion 17, the cover portion 17 is fixedly connected to the plastic portion 13, and the cover portion 17 and the plastic portion 13 cooperate to form the housing cavity 16. In this application, the cover portion 17 and the plastic portion 13 are fixed by welding. The first coil assembly 11 and the second coil assembly 12 are electrically connected to the electric control board 14 respectively. The first coil assembly 11 includes a second group of pins 111, and the second coil assembly 12 includes a third group of pins 121. The second group of pins 111 is connected to the electric control board 14, and can be connected and electrically connected by welding, or connected and electrically connected by fisheye pin press-fit. The third group of pins 121 is connected to the electric control board 14, and can be connected and electrically connected by welding, or connected and electrically connected by fisheye pin press-fit. The coil component 1 also includes a connector 18, and the connector 18 has a fourth group of pins 181. One end of the fourth group of pins 181 is connected to the electric control board 14, and the other end is located in the connector cavity of the connector 18. The coil component 1 is connected to the external device through the connector 18. In this embodiment, the valve device 100 can be connected to the external device only through one connector 18, which can effectively reduce the wiring harness in the system and simplify the connection of the system. In the present application, the first coil assembly 11 and the second coil assembly 12 may further include a grounding pin 112 , one end of the grounding pin 112 is connected to the electric control board 14 , and the other end is connected to the stator housing of the coil assembly.

[0030] Combination Figure 1-Figure 9In the first implementation of this embodiment, the connection assembly 15 includes a pin injection molded part 151a and an adapter plate 151b. The pin injection molded part 151a includes a first group of pins 151 and an injection molded body 152. The injection molded body 152 covers the middle part of the first group of pins 151, that is, the first group of pins 151 are pre-injected into a row by injection molding. The first group of pins 151 includes a first end 1511 and a second end 1512. The first end 1511 is connected to the electric control board 14, and the connection method includes welding and electrical connection, or connecting and electrical connection by fisheye needle press-fitting. The second end 1512 is connected to the adapter plate 151b, and the connection method includes welding and electrical connection, or connecting and electrical connection by fisheye needle press-fitting.

[0031] Combination Figure 1-Figure 9 In this embodiment, the pin injection molded part 151a is fixedly connected or limitedly connected to the plastic part 13, and the adapter plate 151b is fixedly connected or limitedly connected to the plastic part 13. Specifically, in this embodiment, the plastic part 13 has a limiting part 131, and the limiting part 131 has a limiting groove 1311. The injection body 152 of part of the pin injection molded part 151a is located in the limiting groove 1311, and the pin injection molded part 151a is engaged with the limiting part 131 for limiting. The pin injection molded part 151a is arranged substantially vertically to the electric control board 14, and the adapter plate 151b is arranged substantially parallel to the electric control board 14. In this embodiment, the pin injection molded part 151a is roughly flat, and the limiting portion 131 includes two symmetrically arranged limiting grooves 1311. A limiting groove 1311 is inserted into each side of the injection body 152 of the pin injection molded part 151a, so that the pin injection molded part 151a is engaged and limited with the plastic part 13.

[0032] Combination Figure 1-Figure 9 In this embodiment, the plastic part 13 has a connecting column 132, and the adapter plate 151b has a connecting hole. The connecting column 132 passes through the connecting hole and is melted to form a rivet joint. The adapter plate 151b is pressed between the lower end surface of the plastic part 13 and the rivet joint, thereby fixing the adapter plate 151b to the plastic part 13.

[0033] Combination Figure 1-Figure 9In this embodiment, the plastic part 13 also has a connecting hole 133, and the connecting hole 133 is located below the adapter plate 151b. The sensor assembly 103 is connected to the adapter plate 151b through a conductive elastic member 105, and the conductive elastic member 105 passes through the connecting hole 133. The conductive elastic member 105 is pressed between the adapter plate 151b and the sensor assembly 103, and the conductive elastic member 105 is pre-fixed with the sensor assembly 103, or the conductive elastic member 105 is pre-fixed with the adapter plate 151b. The conductive elastic member 105 can be a metal spring or a metal folding plate. Such a setting can facilitate the connection between the adapter plate 151b and the sensor assembly 103 and simplify the assembly of the valve device 100. In other embodiments, the adapter plate 151b can directly abut the sensor assembly 103, or be connected through a flexible circuit board.

[0034] Combination Figure 10-Figure 15 In the second implementation of this embodiment, the plastic part 13 has a limiting part 131, the limiting part 131 has a limiting groove 1311, the injection body 152 of a part of the pin injection part 151a is located in the limiting groove 1311, and the pin injection part 151a is engaged with the limiting part 131 for limiting. In this implementation, the injection body 152 includes a locking part 1521, the locking part 1521 is inserted into the limiting groove 1311, and the limiting groove 1311 is configured to prevent the injection body 152 from being separated from the plastic part 13 in the radial direction.

[0035] In this embodiment, the adapter plate 151b is fixed to the plastic part 13 by means of a snap fastener 134. The plastic part 13 has a snap fastener 134, which includes two symmetrically arranged elastic snap fasteners. The adapter plate 151b is pressed in between the two elastic snap fasteners and is snap fastened to the snap fastener 134. During the process of the adapter plate being pressed into the snap fastener 134, the two elastic snap fasteners can be stretched outwards. After the adapter plate 151b is pressed into place, the elastic snap fasteners can be reset, thereby fixing the adapter plate 151b. The other structures of this embodiment are substantially the same as those of the first embodiment, and will not be described in detail here.

[0036] Combination Figure 16-Figure 19In the third implementation of the present embodiment, the connection assembly 15 includes a first group of pins 151, and the first group of pins 151 includes a first end 1511, a second end 1512 and a middle part 1513, and at least part of the middle part 1513 is covered by the plastic part 13. The first end 1511 is connected to the electric control board 14, and the connection method includes welding and electrical connection, or connection and electrical connection by fisheye pin press-fitting, and the second end 1512 is connected to the sensor assembly 103. In this implementation, the first group of pins 151 is used as one of the inserts for injection molding to form the coil component 1, which can further simplify the assembly of the coil component 1. Of course, the first group of pins 151 can be formed into a row by injection molding in advance, and then used as an insert for injection molding of the coil component 1, which can improve the position accuracy of the first group of pins 151 during injection molding. The other structures of the first group of pins 151 in this implementation are roughly the same as those in the first implementation, and will not be repeated here.

[0037] In this embodiment, the middle part 1513 includes a vertical portion 1513a and a horizontal portion 1513b, wherein the vertical portion 1513a is substantially perpendicular to the electric control board 14, and the horizontal portion 1513b is substantially parallel to the electric control board 14. The second end portion 1512 includes an end plate 1512a and a plurality of branches 1512b, wherein the branches 1512b extend in a direction away from the sensor assembly 103, wherein one of the branches 1512b is connected to the horizontal portion 1513b, wherein at least a portion of the lower end surface of the end plate 1512a is not covered by the plastic portion 13, and the rest of the second end portion 1512 is covered by the plastic portion 13, so as to facilitate connection with the sensor assembly 103. In this embodiment, the sensor assembly 103 is connected to the end plate 1512a of the second end portion 1512 through the conductive elastic member 105, and the conductive elastic member 105 is pressed between the end plate 1512a of the second end portion 1512 and the sensor assembly 103. The conductive elastic member 105 is pre-fixed with the sensor assembly 103, or the conductive elastic member 105 is pre-fixed with the adapter plate 151b. The conductive elastic member 105 can be a metal spring or a metal folded plate. This arrangement can facilitate the connection between the second end 1512 and the sensor assembly 103 and simplify the assembly of the valve device 100. In other embodiments, the second end 1512 can directly abut the sensor assembly 103, or be connected through a flexible circuit board.

[0038] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail in this specification with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified or replaced by equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A valve device, characterized in that: The valve device includes a coil component, which includes a first coil assembly and a second coil assembly. The first coil assembly and the second coil assembly are fixed by injection molding. The coil component also includes a plastic part, which covers at least a portion of the first coil assembly and at least a portion of the second coil assembly. The coil component also includes an electric control board and a connecting assembly. The first coil assembly is electrically connected to the electric control board, and the second coil assembly is electrically connected to the electric control board. The valve device also includes a sensor assembly, and the electric control board is electrically and / or signal-connected to the sensor assembly through the connecting assembly.

2. The valve device according to claim 1, characterized in that The coil component has a accommodating cavity, the electric control board is located in the accommodating cavity, the coil component also includes a cover portion, the cover portion is fixedly connected to the plastic portion, the cover portion and the plastic portion cooperate to form the accommodating cavity, and the first coil assembly and the second coil assembly are electrically connected to the electric control board respectively.

3. The valve device according to claim 1 or 2, characterized in that: The connecting component includes a pin injection molded part and an adapter plate. The pin injection molded part includes a first group of pins and an injection molded body. The injection molded body covers the middle part of the first group of pins. The first group of pins includes a first end and a second end. The first end is connected to the electric control board, and the second end is connected to the adapter plate.

4. The valve device according to claim 3, characterized in that The pin injection molded part is fixedly connected or position-limitedly connected to the plastic part, and the adapter plate is fixedly connected or position-limitedly connected to the plastic part.

5. The valve device according to claim 4, characterized in that The plastic part has a limiting part, and the limiting part has a limiting groove. A part of the injection molded body of the plug-in pin injection molded part is located in the limiting groove, and the plug-in pin injection molded part is engaged with the limiting part for limiting.

6. The valve device according to claim 4 or 5, characterized in that The pin injection molded part is arranged approximately vertically to the electric control board, and the adapter plate is arranged approximately parallel to the electric control board; the plastic part has a connecting column, and the adapter plate has a connecting hole, the connecting column passes through the connecting hole and melts the connecting column to fix the adapter plate to the plastic part; or, the plastic part has a snap-fitting part, and the snap-fitting part includes two symmetrically arranged elastic snap-fitting parts, the adapter plate is pressed in between the two elastic snap-fitting parts, and is snapped with the snap-fitting parts, and during the process of pressing the adapter plate into the snap-fitting part, the two elastic snap-fitting parts can be stretched outward, and after the adapter plate is pressed into place, the elastic snap-fitting part can be reset, thereby fixing the adapter plate.

7. The valve device according to claim 6, characterized in that The sensor assembly is connected to the adapter plate via a conductive elastic member, the conductive elastic member is pressed between the adapter plate and the sensor assembly, the conductive elastic member is pre-fixed to the sensor assembly, or the conductive elastic member is pre-fixed to the adapter plate.

8. The valve device according to claim 1 or 2, characterized in that: The connecting component includes a first group of pins, which include a first end, a second end and a middle part, at least part of the middle part is covered by the plastic part, the first end is connected to the electric control board, and the second end is connected to the sensor component.

9. The valve device according to claim 7, characterized in that The middle part comprises a vertical portion and a horizontal portion, the vertical portion is arranged substantially perpendicular to the electric control board, the horizontal portion is arranged substantially parallel to the electric control board, the second end portion comprises an end plate and a plurality of branches, the branches extend in a direction away from the sensor assembly, one of the branches is connected to the horizontal portion, at least a portion of the lower end surface of the end plate is not covered by the plastic portion, and the rest of the second end portion is covered by the plastic portion.

10. The valve device according to claim 9, characterized in that The sensor assembly is connected to the end plate of the second end through a conductive elastic member, and the conductive elastic member is pressed between the end plate of the second end and the sensor assembly. The elastic member is pre-fixed to the sensor assembly, or the conductive elastic member is pre-fixed to the end plate of the second end.

11. The valve device according to claim 1, 7 or 10, characterized in that: The first coil component includes a second group of pins, the second coil component includes a third group of pins, the second group of pins is connected to the electric control board, the third group of pins is connected to the electric control board, the coil component also includes a connector, the connector has a fourth group of pins, one end of the fourth group of pins is connected to the electric control board, and the other end is located in the connector cavity of the connector.

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