Electric valve sensor fixing mechanism

Abstract

The utility model provides an electrically operated valve sensor fixing mechanism, which relates to the technical field of electrically operated valve sensor fixing mechanisms, and comprises a shell, a circuit groove for mounting a circuit board is arranged at the top end of the shell, a lug boss forming a coil groove is arranged in the circuit groove, and a U-shaped piece connected with the side of the lug boss 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 fixing frame with a groove position is inserted into the limiting groove to form an installation space for installing the sensor. The periphery of the sensor is limited through the fixing frame, the position of the sensor on the shell is fixed, the position of the extrusion piece is adjusted through the adjusting bolt to extrude the sensor, the longitudinal position of the sensor is limited, and displacement of the sensor is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of electric valve sensor fixing mechanism, and in particular to an electric valve sensor fixing mechanism. 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 sensor fixing mechanism to solve the problem of sensor misalignment when installed in a cavity.

[0005] Based on the technical problems existing in the background art, this utility model proposes an electric valve sensor fixing mechanism, 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 piece connected to the side of the protrusion is provided in the circuit groove, a limiting groove for mounting the sensor is formed between the U-shaped piece and the protrusion, and a fixing bracket with a groove is inserted in the limiting groove to form an installation space for mounting the sensor.

[0006] Preferably, the fixing frame has a slot, the bottom of the fixing frame has a mounting hole for easy sensor insertion, and the side of the fixing frame facing the protrusion has a detection hole, the width of which is smaller than the width of the slot.

[0007] Preferably, an extrusion plate is installed in the slot and is located above the sensor. An adjusting bolt is longitudinally threaded to the top of the fixing frame and extends into the slot. The adjusting bolt abuts against the extrusion plate.

[0008] Preferably, the fixing frame and the U-shaped component are fixed together by screws.

[0009] Preferably, the circuit slot is provided with support posts for mounting the circuit board at its four corners.

[0010] Compared with the prior art, the electric valve sensor fixing mechanism proposed in this utility model adopts the above technical solution and achieves the following technical effects:

[0011] This invention uses a fixing frame to restrict the sensor's perimeter and fix its position on the housing. The position of the compression plate is adjusted by adjusting bolts to compress the sensor, restricting its longitudinal position and preventing displacement. Attached Figure Description

[0012] Figure 1 This is a three-dimensional overall structural diagram of the present utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model's fixing frame;

[0014] Figure 3 This is a schematic diagram of the structure of the adjusting bolt and the compression plate in the fixed frame.

[0015] In the diagram: 1. Housing; 2. Circuit groove; 3. Protrusion; 4. U-shaped part; 5. Limiting groove; 6. Fixing bracket; 61. Slot; 62. Mounting hole; 63. Inspection hole; 64. Extrusion plate; 65. Adjusting bolt; 11. Support column. Detailed Implementation

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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.

[0017] 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.

[0018] Example

[0019] Reference Figures 1-3This utility model proposes an electric valve sensor fixing mechanism, including 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. A U-shaped piece 4 connected to the side of the protrusion 3 is provided in the circuit groove 2. A limiting groove 5 for mounting a sensor is formed between the U-shaped piece 4 and the protrusion 3. A fixing frame 6 with a slot 61 is inserted in the limiting groove 5 to form an installation space for mounting the sensor. In this solution, the sensor can be inserted into the slot 61 of the fixing frame 6. The fixing frame 6 can wrap the sensor in the slot 61, but the bottom of the sensor is exposed. There is still a certain space between the top of the sensor and the slot 61. Under the action of the fixing frame 6, the sensor can fit against the protrusion 3 for detection, which can limit the horizontal displacement of the sensor.

[0020] In a specific embodiment, refer to Figure 2 , Figure 3 The mounting bracket 6 has a slot 61 inside, and a mounting hole 62 at the bottom for easy sensor insertion. A detection hole 63 is provided on the side of the mounting bracket 6 facing the protrusion 3, and the width of the detection hole 63 is smaller than the width of the slot 61. In this design, the detection hole 63 is used to expose the side of the sensor. During installation, the sensor needs to be aligned with the side of the protrusion 3. The mounting hole 62 at the bottom of the mounting bracket 6 is the same as the cross-section of the sensor in its top view, used for sensor insertion and installation.

[0021] In a specific embodiment, refer to Figure 3 An extrusion plate 64 is installed in the slot 61 and is located above the sensor. An adjusting bolt 65 is threaded through the slot 61 and connected to the upper part of the fixing bracket 6. The adjusting bolt 65 abuts against the extrusion plate 64. The adjusting bolt 65 in this solution is used to adjust the longitudinal position of the extrusion plate 64 in the slot 61. The space between the extrusion plate 64 and the top of the sensor is adjusted by adjusting the adjusting bolt 65, so that the sensor cannot move longitudinally and the sensor is locked.

[0022] In a specific embodiment, refer to Figure 1 The fixing bracket 6 and the U-shaped part 4 are fixed together by screws. The bottom of the fixing bracket 6 is inserted into the limiting groove 5. The fixing bracket 6 and the U-shaped bracket have an overlapping part. The fixing bracket 6 is locked by screws through the U-shaped part 4.

[0023] In a specific embodiment, refer to Figure 1 The circuit slot 2 has four corners with support posts 11 for mounting circuit boards, and the support posts 11 are used to fix the circuit boards at the four corners.

[0024] 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. An electric valve sensor fixing mechanism, 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 piece (4) connected to the side of the protrusion (3), a limiting groove (5) for mounting a sensor is formed between the U-shaped piece (4) and the protrusion (3), and a fixing bracket (6) with a slot (61) is inserted in the limiting groove (5) to form an installation space for mounting the sensor.

2. The electric valve sensor fixing mechanism according to claim 1, characterized in that, The fixing frame (6) has a slot (61) inside, and the bottom of the fixing frame (6) has an installation hole (62) for easy insertion of the sensor. The side of the fixing frame (6) facing the protrusion (3) has a detection hole (63) with a width smaller than the width of the slot (61).

3. The electric valve sensor fixing mechanism according to claim 2, characterized in that, An extrusion plate (64) is installed in the slot (61) and is located above the sensor. An adjusting bolt (65) is threaded through the slot (61) and is connected to the upper part of the fixing frame (6). The adjusting bolt (65) abuts against the extrusion plate (64).

4. The electric valve sensor fixing mechanism according to claim 1, characterized in that, The fixing bracket (6) and the U-shaped piece (4) are fixed together by screws.

5. The electric valve sensor fixing mechanism according to claim 1, characterized in that, The circuit slot (2) is provided with support posts (11) for mounting circuit boards at its four corners.

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