Electric valve coil shell

Abstract

The utility model provides an electrically operated valve coil housing, which relates to the technical field of electrically operated valve coil housings and comprises a housing body, a circuit groove used for installing a circuit board is arranged at the top end of the housing body, a protruding portion forming a coil groove is arranged in the circuit groove, and a U-shaped piece connected with the side of the protruding portion is arranged in the circuit groove. A limiting groove for installing a sensor is formed between the U-shaped piece and the protruding part, and a detachable limiting plate is installed at the top end of the limiting groove. According to the utility model, the longitudinal position of the sensor is limited through the first extrusion sheet, and the horizontal position of the sensor is limited through the second extrusion sheet, so that the sensor can cling to the lug boss in the limiting groove, vibration generated by the electric valve is buffered, and the detection error of the sensor is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of electric valve coil housings, and more particularly to an electric valve coil housing. Background Technology

[0002] An electric valve includes a rotor, a stator, and a circuit board. The rotor includes a permanent magnet, which has at least two pairs of magnetic poles. The stator assembly includes a coil and a coil frame. The coil is supported by the coil frame, which is located around the permanent magnet. The electric valve also includes a sensor, which is located around the permanent magnet. Both the sensor and the coil are electrically connected to the circuit board. The sensor includes a sensing part, which is used to sense changes in the magnetic poles of the permanent magnet. The sensing part is located between the two ends of the permanent magnet throughout the entire operation of the rotor.

[0003] In actual installation, the sensor is installed in a cavity specifically designed to house the sensor. During operation, the entire electric valve will vibrate, causing the sensor to vibrate within the cavity, resulting in deflection or offset. This can lead to inaccurate speed detection by the electric valve and generate errors. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an electric valve coil housing to solve the problem of sensor misalignment when installed in a cavity.

[0005] Based on the technical problems existing in the background art, the present invention proposes an electric valve coil housing, including a housing, a circuit groove for mounting a circuit board is provided at the top of the housing, a protrusion forming a coil groove is provided in the circuit groove, a U-shaped part connected to the side of the protrusion is provided in the circuit groove, a limiting groove for mounting a sensor is formed between the U-shaped part and the protrusion, and a detachable limiting plate is installed at the top of the limiting groove.

[0006] Preferably, the U-shaped component is provided with at least two upward-facing positioning holes, and the side of the limiting plate facing the limiting groove is provided with a positioning post, which can be installed corresponding to the positioning hole.

[0007] Preferably, the end of the positioning post facing the U-shaped part is provided with a beveled edge.

[0008] Preferably, the limiting plate has a groove on the side facing the U-shaped part, a first extrusion plate is slidably installed in the groove, and a first elastic member is also installed in the groove, with the two ends of the first elastic member abutting against the first extrusion plate and the limiting plate respectively.

[0009] Preferably, a second extrusion piece that slides horizontally is installed in the limiting groove, and a second elastic member is also placed in the limiting groove. The two ends of the second elastic member abut against the second extrusion piece and the U-shaped member, respectively, and the second elastic member can push the second extrusion piece to move toward the protrusion.

[0010] Preferably, the circuit slot is provided with support posts for mounting the circuit board at its four corners.

[0011] Compared with the prior art, the electric valve coil housing proposed in this utility model adopts the above-mentioned technical solution and achieves the following technical effects:

[0012] This invention restricts the longitudinal position of the sensor by using a first extrusion plate and restricts the horizontal position of the sensor by using a second extrusion plate, so that the sensor can fit tightly against the protrusion in the limiting groove and buffer the vibration generated by the electric valve, thereby reducing the sensor detection error. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a top view of the U-shaped component of this utility model;

[0015] Figure 3 This is a front view of the limiting plate of this utility model.

[0016] In the figure: 1. Housing; 2. Circuit groove; 3. Protrusion; 4. U-shaped part; 5. Limiting groove; 6. Limiting plate; 41. Positioning hole; 61. Positioning post; 611. Beveled edge; 62. Groove; 63. First extrusion piece; 64. First elastic element; 51. Second extrusion piece; 52. Second elastic element; 21. Support post. Detailed Implementation

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0019] Example

[0020] Please refer to Figures 1-3 This utility model proposes an electric valve coil housing, including a housing 1. The top of the housing 1 has a circuit groove 2 for mounting a circuit board. The circuit groove 2 has a protrusion 3 forming a coil groove. A U-shaped member 4 connected to the side of the protrusion 3 is provided within the circuit groove 2. A limiting groove 5 for mounting a sensor is formed between the U-shaped member 4 and the protrusion 3. A detachable limiting plate 6 is mounted on the top of the limiting groove 5. In this design, the sensor needs to be placed into the limiting groove 5, and the position of the sensor is restricted by the detachable limiting plate 6 to prevent sensor displacement. The space of the limiting groove 5 in this design is related to the shape of the sensor.

[0021] In a specific embodiment, refer to Figure 1 , Figure 2 , Figure 3 The U-shaped part 4 is provided with at least two upward-facing positioning holes 41. The side of the limiting plate 6 facing the limiting groove 5 is provided with a positioning post 61. The positioning post 61 can be installed in the corresponding positioning hole 41. When the sensor is installed in the limiting groove 5, the limiting plate 6 can be installed on the opening of the limiting groove 5. The positioning post 61 of the limiting plate 6 can be inserted and fixed in the corresponding positioning hole 41 to form a space for placing the sensor.

[0022] In a specific embodiment, refer to Figure 3 The end of the positioning post 61 facing the U-shaped part 4 is provided with a chamfered edge 611. The chamfered edge 611 of the positioning post 61 makes it easier for the positioning post 61 to be inserted into the positioning groove, thus improving the installation efficiency.

[0023] In a specific embodiment, refer to Figure 1 , Figure 2 , Figure 3 The limiting plate 6 has a groove 62 on the side facing the U-shaped part 4. A first extrusion piece 63 is slidably installed in the groove 62. A first elastic member 64 is also installed in the groove 62. The two ends of the first elastic member 64 abut against the first extrusion piece 63 and the limiting plate 6, respectively. In this solution, the first elastic member 64 can push the first extrusion piece 63 to extrude the top of the sensor, which can limit the longitudinal movement of the sensor and keep the sensor stable in the longitudinal direction.

[0024] In a specific embodiment, refer to Figure 1 , Figure 2 , Figure 3A second extrusion piece 51 is installed in the limiting groove 5 and slides horizontally. A second elastic member 52 is also placed in the limiting groove 5. The two ends of the second elastic member 52 abut against the second extrusion piece 51 and the U-shaped member 4, respectively. The second elastic member 52 can push the second extrusion piece 51 to move towards the protrusion 3. In this solution, the second elastic member 52 can push the second extrusion piece 51 to squeeze the side of the sensor and make the sensor squeeze the protrusion 3, which can limit the horizontal movement of the sensor and keep the sensor stable in the horizontal direction.

[0025] In a specific embodiment, refer to Figure 1 The circuit slot 2 has four corners with support posts 21 for mounting circuit boards, and the support posts 21 are used to fix the circuit boards at the four corners.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A housing for an electric valve coil, characterized in that, Includes a housing (1), the top of the housing (1) is provided with a circuit groove (2) for mounting a circuit board, the circuit groove (2) has a protrusion (3) forming a coil groove, the circuit groove (2) is provided with a U-shaped part (4) connected to the side of the protrusion (3), a limiting groove (5) for mounting a sensor is formed between the U-shaped part (4) and the protrusion (3), and a detachable limiting plate (6) is installed at the top of the limiting groove (5).

2. The electric valve coil housing according to claim 1, characterized in that, The U-shaped part (4) is provided with at least two upward-facing positioning holes (41), and the side of the limiting plate (6) facing the limiting groove (5) is provided with a positioning post (61), which can be installed in accordance with the positioning hole (41).

3. The electric valve coil housing according to claim 2, characterized in that, The positioning post (61) has a chamfered edge (611) at one end facing the U-shaped part (4).

4. The electric valve coil housing according to claim 1, characterized in that, The limiting plate (6) has a groove (62) on the side facing the U-shaped part (4). A first extrusion piece (63) is slidably installed in the groove (62). A first elastic member (64) is also installed in the groove (62). The two ends of the first elastic member (64) abut against the first extrusion piece (63) and the limiting plate (6) respectively.

5. The electric valve coil housing according to claim 1, characterized in that, The limiting groove (5) is equipped with a horizontally sliding second extrusion piece (51), and a second elastic member (52) is also placed in the limiting groove (5). The two ends of the second elastic member (52) abut against the second extrusion piece (51) and the U-shaped member (4) respectively. The second elastic member (52) can push the second extrusion piece (51) to move towards the protrusion (3).

6. The electric valve coil housing according to claim 1, characterized in that, The circuit slot (2) is provided with support pillars (21) for mounting circuit boards at its four corners.

Images