Electric valve

Abstract

The utility model provides an electric valve which comprises a stator, a connecting plate and a clamping piece, the connecting plate is provided with a matching groove, the clamping piece comprises a mounting part and a clamping part, at least part of the clamping part is located in the matching groove, the clamping part can elastically deform, the mounting part is fixedly connected with the stator or connected with the stator in a limiting mode, and the clamping part is located in the matching groove. And the clamping part can be clamped with the wall forming the matching groove in a matching manner, so that the disassembly and assembly convenience of the electrically operated valve is improved, the maintenance of the electrically operated valve is facilitated, and the service life of the electrically operated valve can be prolonged.

Description

Technical Field

[0001] This application relates to the field of fluid control technology, and more particularly to an electric valve. Background Technology

[0002] Electric valves are control devices widely used in engineering and industrial fields. Their main function is to adjust the output signal ratio according to the magnitude of the input signal, thereby achieving precise control of the flow rate of liquids or gases. Electric valves consist of a valve body and an actuator. Currently, the valve body and actuator are connected by bolts. Bolted connections are inconvenient for disassembly and installation, and repeated disassembly and installation can damage the threads, thus affecting the reliability and durability of the electric valve. Utility Model Content

[0003] This application provides an electric valve, the electric valve comprising:

[0004] stator;

[0005] Connecting plate, the connecting plate having a mating groove;

[0006] A snap-fit ​​component, comprising a mounting portion and a snap-fit ​​portion, wherein at least a portion of the snap-fit ​​portion is located in the mating groove, the snap-fit ​​portion is elastically deformable, the mounting portion is fixedly connected to the stator or is an integral structure therewith, and the snap-fit ​​portion is capable of engaging with the wall forming the mating groove.

[0007] The electric valve provided in this application embodiment has a stator and a connecting plate connected by a snap-fit ​​mechanism. It can maintain good connection stability even after multiple disassemblies and installations. The electric valve can be installed manually, which facilitates the installation and disassembly of the stator and connecting plate. The solution provided in this application embodiment can improve the convenience of electric valve installation and disassembly, facilitate the maintenance of electric valve, reduce processing and assembly costs, and increase the service life of electric valve. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 A schematic diagram of one embodiment of the electric valve provided in this application;

[0010] Figure 2 An exploded view of one embodiment of the electric valve provided in this application;

[0011] Figure 3A schematic diagram of one embodiment of the connecting plate provided in this application;

[0012] Figure 4 A schematic diagram of one embodiment of the stator and snap-fit ​​assembly provided in this application;

[0013] Figure 5 A cross-sectional view of one embodiment of the electric valve provided in this application;

[0014] Figure 6 This is a schematic diagram of another embodiment of the card connector provided in this application.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1-Stator;

[0017] 2-Connecting plate;

[0018] 21-Matching groove;

[0019] 211 - First inner wall;

[0020] 212 - Second inner wall;

[0021] 212a - Protrusion;

[0022] 22-Mounting holes;

[0023] 3-Card connector;

[0024] 31-Installation Department;

[0025] 32-Snap-fit ​​part;

[0026] 321-First Main Body;

[0027] 322 - Second Main Body;

[0028] 322a - Second opening;

[0029] 323 - Bending section;

[0030] 323a - Connecting section;

[0031] 323b - First opening;

[0032] 33 - Pressing part;

[0033] 34-Extension;

[0034] 4-Valve body;

[0035] 5-Rotor. Detailed Implementation

[0036] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0037] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0038] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0039] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0040] like Figures 1 to 3 As shown in the illustration, this application provides an electric valve, which includes a stator 1, a connecting plate 2, and a snap-fit ​​member 3. The electric valve includes a drive device that provides control power to the valve. The drive device includes the stator 1, which is a relatively fixed part of the drive device. The connecting plate 2 has a mating groove 21, which is a structure for snap-fitting with the snap-fit ​​member 3. The mounting part 31 is fixedly connected to the stator 1 or is an integral structure. The snap-fit ​​part 32 can engage with the wall forming the mating groove 21. The mating groove 21 can be a through hole, a slot, or a snap fastener, etc. Figure 5 and Figure 6 As shown, the snap-fit ​​component 3 includes a mounting portion 31 and a snap-fit ​​portion 32. The mounting portion 31 is used to connect with the stator 1, and the snap-fit ​​portion 32 is used to snap-fit ​​with the mating groove 21. At least a portion of the snap-fit ​​portion 32 is located corresponding to the mating groove 21. The snap-fit ​​component 3 can have multiple snap-fit ​​portions 32, which can be spaced apart circumferentially along the mounting portion 31. The connecting plate 2 can have mating grooves 21 at corresponding positions to snap-fit ​​with the snap-fit ​​component 3, thereby improving the stability of the connection. The snap-fit ​​portion 32 can elastically deform to allow the snap-fit ​​component 3 to smoothly snap-fit ​​with the connecting plate 2, and the snap-fit ​​component 3 can deform to disengage the snap-fit ​​portion 32 from the connecting plate 2.

[0041] The electric valve provided in this application embodiment has a stator 1 and a connecting plate 2 connected by a snap-fit ​​mechanism. It can maintain good connection stability even after multiple disassemblies and installations, and the electric valve can be installed manually. This facilitates the installation and disassembly of the stator 1 and the connecting plate 2. Compared with the bolt connection in the prior art, the solution provided in this application embodiment can improve the convenience of electric valve installation and disassembly, facilitate the maintenance of electric valve, reduce processing and assembly costs, and increase the service life of electric valve.

[0042] The electric valve includes a valve body 4, and a connecting plate 2 which is fixedly connected to the valve body 4 or is an integral structure therewith. The connecting plate 2 extends outward from the outer periphery of the valve body 4 and is used for connecting to other external components. Along the axial direction of the electric valve, the rotor 5, the connecting plate 2, and the valve core are arranged in sequence. The valve body 4, together with the valve core and other structures, enables flow control of the fluid.

[0043] Specifically, the connecting plate 2 has a mounting hole 22 extending radially along the electric valve, while the mounting hole 22 extends axially along the valve assembly. The valve body 4 and stator of the electric valve can be connected together with other external components through the mounting hole 22. A portion of the valve body 4 is located away from the stator 1 relative to the connecting plate 2 and can be inserted into other external components, forming an insert valve structure, thus facilitating integration with other components. The connecting plate 2 allows the valve body 4 and stator 1 to be fixed together with other external components.

[0044] In some embodiments, the connecting plate 2 is used to connect with the flow channel plate or valve island, a part of the valve body 4 is inserted into the flow channel plate or valve island, the flow channel plate or valve island may be provided with a flow channel, and the flow channel plate or valve island may have a pre-set recessed structure to avoid the snap-fit ​​part 32 passing through the mating groove 21.

[0045] In one possible implementation, the stator 1 includes a coil, and the electric valve includes a rotor 5. At least a portion of the coil is sleeved around the circumferential outer side of the rotor 5, wherein the direction parallel to the rotation axis of the rotor 5 is the circumferential direction of the electric valve, and the direction perpendicular to the rotation axis of the rotor 5 is the radial direction of the electric valve. Current can be supplied by an external power source. When current passes through the coil, the coil generates a magnetic field. The magnetic field of the coil interacts with the magnetic field of the rotor 5, thereby driving the rotor 5 to rotate. The rotor 5 provides power to adjust the valve opening, thus regulating the flow rate within the valve body 4.

[0046] In one possible implementation, the snap-fit ​​member 3 includes at least two snap-fit ​​portions 32 along the radial direction of the electric valve, with one snap-fit ​​portion 32 located on one side of the valve body 4 and the other snap-fit ​​portion 32 located on the other side of the valve body 4. The snap-fit ​​member 3 may have two snap-fit ​​portions 32, which may be symmetrically arranged on both sides of the mounting portion 31, or the snap-fit ​​member 3 may have more than two snap-fit ​​portions 32, which are spaced apart circumferentially along the electric valve. The multiple snap-fit ​​portions 32 can each perform a snap-fit ​​function, improving the stability of the connection between the snap-fit ​​member 3 and the connecting plate 2.

[0047] like Figure 5 and Figure 6 As shown, in one possible embodiment, the snap-fit ​​portion 32 includes a first main body portion 321, one end of which is connected to the mounting portion 31, and the other end of the first main body portion 321 is located away from the stator 1 relative to the end connected to the mounting portion 31. The wall forming the mating groove 21 includes a first inner wall 211 and a second inner wall 212, and the second inner wall 212 includes a protrusion 212a protruding towards the first inner wall 211. The first main body portion 321 abuts against the first inner wall 211.

[0048] The first main body 321 can be configured as a thin plate, thereby giving it good elasticity and allowing it to deform during installation or disassembly, facilitating manual operation. Specifically, the snap-fit ​​component 3 may include multiple first main body parts 321, which can be spaced apart circumferentially along the mounting portion 31. The connecting plate 2 has a mating groove 21 at a position corresponding to the first main body parts 321. The multiple first main body parts 321 can respectively engage with the mating groove 21 at different positions, thereby improving the stability of the connection between the snap-fit ​​component 3 and the connecting plate 2. The mating groove 21 can be a slot or an opening. The first inner wall 211 is the inner wall of the mating groove 21. The first main body part 321 can abut against the first inner wall 211 to achieve engagement. The first main body part 321 can form a certain angle with the inner wall of the mating groove 21, thereby allowing the first main body part 321 to deform when engaging with the mating groove 21, increasing the abutment force between the first main body part 321 and the mating groove 21, and enabling the two to fit tightly together. During disassembly, the first main body 321 can be manually pressed to deform it, thereby releasing the fit between the first main body 321 and the mating groove 21, allowing the two to separate from each other.

[0049] like Figure 5 and Figure 6 As shown, in one possible implementation, the first main body portion 321 has a second main body portion 322 at the end away from the mounting portion 31. The second main body portion 322 extends toward the stator 1 and abuts against the second inner wall 212.

[0050] One end of the first main body portion 321 and the second main body portion 322 are connected to each other, while the other ends are relatively far apart, so that the first main body portion 321 and the second main body portion 322 can respectively abut against the mating groove 21 to achieve a snap-fit ​​connection. The second inner wall 212 can be disposed opposite to the first inner wall 211. The first inner wall 211 and the second inner wall 212 extend circumferentially along the electric valve, and the first inner wall 211 is disposed radially on the inner side of the second inner wall 212. When the first main body portion 321 abuts against the first inner wall 211, the second main body portion 322 can simultaneously abut against the second inner wall 212, thereby improving the stability of the connection.

[0051] like Figure 4 and Figure 6 As shown, in one possible implementation, the second main body 322 has a second opening 322a, and the protrusion 212a is located on the inner wall of the second opening 322a.

[0052] The protrusion 212a is used to mate with the second opening 322a. During installation, at least a portion of the protrusion 212a can extend into the interior of the second opening 322a, thereby achieving a snap-fit ​​connection between the second main body 322 and the protrusion 212a. This limits the second main body 322 in the circumferential direction of the electric valve, improving the stability of the connection between the second main body 322 and the connecting plate 2. The cross-section of the protrusion 212a can be square, circular, or elliptical, etc. The end face of the protrusion 212a near the first inner wall 211 can be set as an arc surface to provide a guiding function, allowing the protrusion 212a to smoothly extend into the second opening 322a for snap-fit ​​during installation.

[0053] like Figure 6 As shown, in one possible implementation, the snap-fit ​​member 3 includes a bent portion 323, which is arc-shaped and connects the first main body portion 321 and the second main body portion 322.

[0054] The snap-fit ​​portion 32 can be made of metal or plastic, thus providing it with good elasticity. The bend portion 323 can be a portion of a circular arc or an elliptical arc, and the included angle between the first main body portion 321 and the second main body portion 322 can be flexibly set according to actual needs. The bend portion 323 can reduce stress concentration, facilitate deformation of the snap-fit ​​component 3 during installation or disassembly, and improve the reliability and stability of the snap-fit ​​component 3. The bend portion 323 is located at the bottom of the snap-fit ​​portion 32. During installation, the arc-shaped portion of the bend portion 323 can act as a guide, allowing the snap-fit ​​portion 32 to smoothly extend into the mating groove 21 for installation.

[0055] like Figure 6 As shown, in one possible implementation, the bend 323 includes at least two connecting segments 323a, with a first opening 323b between two adjacent connecting segments 323a.

[0056] The connecting segment 323a is used to connect the first main body 321 and the second main body 322. Providing multiple connecting segments 323a can improve the stability of the connection between the first main body 321 and the second main body 322. A first opening 323b is provided between adjacent connecting segments 323a. The first opening 323b can release the stress generated during processing and effectively disperse the stress generated during the deformation of the bending portion 323, reducing stress concentration around the first opening 323b, lowering the possibility of wrinkles or cracks forming after the bending portion 323 deforms, and improving the reliability of the bending portion 323.

[0057] like Figure 5 and Figure 6 As shown, in one possible embodiment, the section of the snap-fit ​​portion 32 away from the mounting portion 31 has a pressing portion 33, which protrudes relative to the connecting plate 2 when the snap-fit ​​portion 32 engages with the mating groove 21.

[0058] The pressing part 33 can be configured as a protruding structure at the end of the snap-fit ​​part 32, and the outer wall surface of the pressing part 33 can be configured as a curved surface to facilitate pressing by the operator. By applying pressure to the pressing part 33, the operator can deform the snap-fit ​​part 32, thereby separating the snap-fit ​​part 3 from the connecting plate 2, which facilitates the separation of the stator 1 from the connecting plate 2 for maintenance of the electric valve. The pressing part 33 can be located at the end of the second main body part 322 away from the first main body part 321. When the snap-fit ​​part 3 includes multiple second main body parts 322, each second main body part 322 can be provided with the pressing part 33.

[0059] In one possible implementation, the snap-fit ​​component 3 is a thin-walled component with a wall thickness of less than 2 mm. Designing the snap-fit ​​component 3 as a thin-walled component reduces its weight, which is beneficial for the lightweight design of the electric valve. Furthermore, the thin-walled component has relatively small elastic deformation, enabling more precise assembly during snap-fit ​​engagement. The thickness of the snap-fit ​​component 3 can be set according to actual needs; the wall thickness can be 1 mm, 1.3 mm, 1.5 mm, 1.7 mm, etc. When the snap-fit ​​component 3 is made of plastic, the thin-walled component dissipates heat more quickly during processing, which helps improve processing accuracy.

[0060] like Figure 5 and Figure 6 As shown, in one possible embodiment, the pressing part 33 includes an extension 34 at the end away from the locking part 32, the extension 34 extending towards the connecting plate 2. The extension 34 provides the operator with more pressing positions, thereby improving operational convenience. The size of the extension 34 can be set according to actual needs, and the extension 34 is located at the top of the connecting plate 2 along the axial direction of the electric valve, thereby avoiding the mating groove 21 and not affecting the connection between the locking part 32 and the mating groove 21.

[0061] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this application. The above description is only a preferred embodiment of this application, but this application does not limit the scope of implementation to what is shown in the drawings. Any changes made in accordance with the concept of this application, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, should be within the protection scope of this application.

Claims

1. An electric valve, characterized in that, The electric valve includes: Stator (1); A connecting plate (2) having a mating groove (21); The snap-fit ​​component (3) includes a mounting part (31) and a snap-fit ​​part (32). At least a portion of the snap-fit ​​part (32) is located in the mating groove (21). The snap-fit ​​part (32) is elastically deformable. The mounting part (31) is fixedly connected to the stator (1) or is an integral structure. The snap-fit ​​part (32) can engage with the wall forming the mating groove (21). The electric valve includes a valve body (4). The connecting plate (2) is fixedly connected to the valve body (4) or is an integral structure. The connecting plate (2) extends outward from the outer periphery of the valve body (4).

2. The electric valve according to claim 1, characterized in that, The snap-fit ​​portion (32) includes a first main body portion (321), one end of which is connected to the mounting portion (31), and the other end of which is away from the stator (1) relative to the end connected to the mounting portion (31). The wall forming the mating groove (21) includes a first inner wall (211), and the first main body portion (321) abuts against the first inner wall (211).

3. The electric valve according to claim 2, characterized in that, The first main body (321) has a second main body (322) at one end away from the mounting part (31). The second main body (322) extends toward the stator (1) and the wall forming the mating groove (21) includes a second inner wall (212). The second inner wall (212) is disposed opposite to the first inner wall (211), and the second main body (322) abuts against the second inner wall (212).

4. The electric valve according to claim 3, characterized in that, The second main body (322) has a second opening (322a), and the second inner wall (212) includes a protrusion (212a) that protrudes toward the first inner wall (211), the protrusion (212a) being located in the second opening (322a).

5. The electric valve according to claim 3, characterized in that, The snap-fit ​​component (3) includes a bent portion (323), which is arc-shaped and connects the first main body portion (321) and the second main body portion (322).

6. The electric valve according to claim 5, characterized in that, The bending portion (323) includes at least two connecting segments (323a), which are spaced apart, and a first opening (323b) is provided between two adjacent connecting segments (323a).

7. The electric valve according to claim 1, characterized in that, The section of the snap-fit ​​part (32) away from the mounting part (31) has a pressing part (33). When the snap-fit ​​part (32) engages with the mating groove (21), the pressing part (33) protrudes relative to the connecting plate (2).

8. The electric valve according to any one of claims 1-7, characterized in that, A portion of the valve body (4) is located away from the stator (1) relative to the connecting plate (2) and can be inserted into other external components. The connecting plate (2) extends radially along the electric valve and has at least one mounting hole (22) extending axially along the valve assembly. The connecting plate (2) is used for connection with other external components.

9. The electric valve according to claim 8, characterized in that, The snap-fit ​​member (3) includes two snap-fit ​​portions (32) along the radial direction of the electric valve, one of the snap-fit ​​portions (32) being located on one side of the valve body (4), and the other snap-fit ​​portion (32) being located on the other side of the valve body (4); Alternatively, the snap-fit ​​member (3) may include two or more snap-fit ​​portions (32), with the plurality of snap-fit ​​portions (32) spaced apart circumferentially along the electric valve.

10. The electric valve according to any one of claims 1-7, characterized in that, The snap-fit ​​component (3) is a thin-walled component, and the wall thickness of the snap-fit ​​component (3) is less than 2 mm.

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