CN220807051U - Magnetic sensor fixing device - Google Patents

Abstract

The utility model provides a magnetic sensor fixing device, which is provided with a first bonding surface and a second bonding surface, wherein the positions between the fixing device and a pole head are limited through the first bonding surface and the second bonding surface, so that the position error between the fixing device and the pole head caused by the disassembly and assembly of the fixing device is reduced; the fixing device is provided with a sensor fixing groove, and the influence of the temperature change of the pole head of the electromagnet on the measurement precision of the magnetic sensor is reduced through the interval between the groove bottom and the second bonding surface; the magnetic sensor is positioned and fixed through the sensor fixing groove, so that the magnetic sensor is convenient to limit and position, and the relative position of the magnetic sensor and the pole head is convenient to determine and fix.

Description

Magnetic sensor fixing device

Technical Field

The utility model belongs to the field of measurement of magnetic variables, relates to fixation of a magnetic sensor, and particularly relates to a magnetic sensor fixing device.

Background

The magnetic field generator is a device for generating a strong magnetic field, and plays an important role in various fields of scientific research, industry, medicine, and the like. When using a magnetic field generated by a magnetic field generator, parameters such as the intensity and direction of the magnetic field need to be measured to determine specific parameters of a magnetic field environment in which an object to be measured is located, in this case, magnetic sensor is generally used to measure the magnetic field parameters, for example, for an electromagnet, a measuring head of the magnetic sensor may be extended into the magnetic field to measure, or the magnetic sensor may be attached to a pole to measure. However, the existing measurement mode is difficult to locate the position of the magnetic sensor, so that the detected magnetic field position cannot be located, and the comparability between measurement results and the calculation accuracy of magnetic field parameters are greatly affected.

The above information disclosed in the background section is only for enhancement of understanding of the background of the utility model and therefore may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of utility model

The utility model provides a magnetic sensor fixing device, which aims at solving the problem that the position of a magnetic sensor is difficult to position in the prior art, wherein the fixing device is provided with a first bonding surface and a second bonding surface, a preset included angle is formed between the first bonding surface and the second bonding surface, the first bonding surface and the second bonding surface are respectively bonded to a pole head of an electromagnet, and the second bonding surface is bonded to a magnetic field extension pole face of the pole head; the fixing device is provided with a sensor fixing groove, the groove bottom of the sensor fixing groove at least partially extends along the direction parallel to the second fitting surface, a space is arranged between the groove bottom and the second fitting surface, and the sensor fixing groove is configured in a mode capable of limiting the magnetic sensor.

Preferably, a through hole is formed in the bottom of the sensor fixing groove, and the through hole penetrates through the second attaching surface and the bottom of the groove.

Preferably, the fixing device is further provided with a positioning flange, and the positioning flange extends to one side of the pole head.

Further preferably, the positioning flange is provided with a third bonding surface, the third bonding surface is bonded to the pole head, and the third bonding surface and the first bonding surface and the second bonding surface form preset included angles respectively.

Further preferably, the positioning flange is fitted to the pole head.

Preferably, the fixing device is further provided with a mounting hole, and a screw passes through the mounting hole to be in threaded connection with the electrode head.

Preferably, the sensor fixing groove is closed along the extending end side of the second attaching surface.

The utility model has at least the following beneficial effects: limiting the positions between the fixing device and the pole head through the first bonding surface and the second bonding surface, and reducing the position error between the fixing device and the pole head caused by the disassembly and assembly of the fixing device; the positions of the magnetic sensors are limited through the groove walls and the groove bottoms, so that the magnetic sensors are conveniently fixed and positioned; the influence of the temperature change of the pole head of the electromagnet on the measurement precision of the magnetic sensor is reduced through the interval between the groove bottom and the second bonding surface; the magnetic sensor is positioned and fixed through the sensor fixing groove, so that the magnetic sensor is convenient to limit and position, and the relative position of the magnetic sensor and the pole head is convenient to determine and fix.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Fig. 2 is another angular view of the embodiment shown in fig. 1.

Fig. 3 is a further angular view of the embodiment of fig. 1.

Fig. 4 is a schematic diagram of a usage mode of an embodiment of the present utility model.

Fig. 5 is another angular view of the schematic diagram of fig. 4.

Detailed Description

In order to make the objects and features of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below. It should be noted that the drawings are in a very simplified form and use non-precise ratios for convenience and clarity in assisting in the description of embodiments of the utility model.

The present utility model provides a magnetic sensor fixing device 100 for fixing a position between a magnetic sensor and a pole head 200 of an electromagnet to each other so as to detect information including at least strength of a magnetic field extending outward from the pole head 200 of the electromagnet by the magnetic sensor. Specifically, referring to fig. 1 to 3, the fixing device 100 provided by the present utility model is provided with a first bonding surface 110 and a second bonding surface 120, wherein the first bonding surface 110 and the second bonding surface 120 are respectively bonded to different positions of the pole head 200 of the electromagnet, and a preset included angle is formed between the first bonding surface 110 and the second bonding surface 120 in order to position the relative positions between the fixing device 100 and the pole head 200; the second contact surface 120 is attached to the magnetic field extension pole face 210 of the pole head 200 of the electromagnet, so that the position between the second contact surface 120 and the magnetic field extension pole face 210 of the pole head 200 is relatively fixed, and a positioning basis for determining the relative position of the magnetic sensor and the pole head 200 is provided for the magnetic sensor.

The magnetic field extending pole face 210 refers to a face of the pole head 200 extending the magnetic field to a space outside the pole head 200, and the extending form includes extending the magnetic field from the external space to the pole head 200, extending from the pole head 200 to the external space, or both. In some cases, the pole head 200 may have a plurality of faces extending the magnetic field to the external space, and in this case, the corresponding face on the pole head from which the working magnetic field is mainly derived is generally referred to as a field extending pole face 210, or the location where measurement is required to obtain the magnetic field parameters of the magnetic field environment of the external space is referred to as a field extending pole face 210. In the present embodiment, one of the pole heads 200, which has a relatively appropriate shape and size, is selected as the magnetic field extension pole face 210, as shown in fig. 4.

The fixing device 100 is provided with a sensor fixing groove 130, a groove bottom 131 of the sensor fixing groove 130 extends at least partially along a direction parallel to the second abutting surface 120, a space is arranged between the groove bottom 131 and the second abutting surface 120, and the sensor fixing groove 130 is configured to limit the magnetic sensor.

In use, the magnetic sensor is placed in the sensor fixing groove 130, and the position of the magnetic sensor is limited by the groove walls 132 and the groove bottom 131, so that the magnetic sensor is conveniently fixed, for example, the magnetic sensor is stuck to the groove bottom 131, clamped between at least two groove walls 132, and stuck to the groove walls 132 or the groove bottom 131. Because the interval is arranged between the groove bottom 131 and the second bonding surface 120, the influence of the temperature change of the pole head 200 of the electromagnet on the measurement precision of the magnetic sensor can be reduced to a certain extent; the positioning and fixing of the magnetic sensor are performed through the sensor fixing groove 130, and the magnetic sensor fixing device 100 can be disassembled and replaced, so that the use of the pole head 200 is convenient and is not affected; the groove walls 132 and the groove bottoms 131 of the sensor fixing groove 130 are utilized to facilitate limiting and positioning when the sensor is mounted on the magnetic sensor fixing device 100, and further facilitate determining and fixing the relative position of the magnetic sensor and the pole head 200.

Referring to fig. 1, the groove bottom 131 of the sensor fixing groove 130 is provided with a through hole 140, and the through hole 140 penetrates through the second bonding surface 120 and the groove bottom 131, so that a gap in the shape of the through hole 140 is left between the sensor and the pole head 200 when the sensor is mounted in the sensor fixing groove 130, and a certain medium, such as an air medium, is generally arranged in the gap, so that the influence of the magnetic field caused by the medium formed by the metal medium or the material of the sensor fixing device made of other materials is avoided, and the accuracy is increased.

Referring to fig. 1 to 4, the fixing device 100 is further provided with a positioning flange 140, and the positioning flange 140 extends to one side of the pole head 200 of the electromagnet, and further contacts with the pole head 200 through the positioning flange 140 on the basis of the first bonding surface 110 and the second bonding surface 120, so as to further perform positioning. More specifically, the positioning flange 140 is provided with a third bonding surface, that is, the contact surface between the protruding positioning flange 140 and the pole head 200 is used as the third bonding surface, so that the third bonding surface is bonded to the pole head 200, and the third bonding surface, the first bonding surface and the second bonding surface form preset included angles respectively, so that the first bonding surface 110, the second bonding surface 120 and the third bonding surface are bonded to the pole head 200 from three directions, thereby realizing positioning between the fixing device 100 and the pole head 200.

Referring to fig. 5, the positioning flange 140 is engaged with the pole head 200 of the electromagnet, specifically, an engaging groove 220 may be provided on the pole head 200 at a position matching with the positioning flange 140, and during installation, the positioning flange 140 is engaged with the engaging groove 220, so as to facilitate positioning and installation between the pole head 200 and the fixing device 100. Fig. 1 to 3 show a form of a positioning flange 140 provided at the edge of the refastening device 100, which positioning flange 140 can be fitted from the outside of the pole head 200 into a corresponding position on the pole head 200. In addition, the positioning flange 140 may be provided as a protrusion, and a hole matching the positioning flange 140 may be provided at a corresponding position of the pole head 200, so that the positioning flange 140 and the pole head 200 may be engaged with each other through the positioning flange 140 and the matched hole.

Referring to fig. 1, the fixing device 100 is further provided with a mounting hole 150, and referring to fig. 4, a screw is threaded through the mounting hole 150 to connect with the pole head 200 of the electromagnet. Accordingly, threaded holes may be provided at the matching positions of the pole head 200, and the fixing of the fixing device 100 may be achieved by passing screws through the mounting holes 150 and screwing with the threaded holes. Referring to fig. 1 and 4, as one possible embodiment, the mounting hole 150 may be a counterbore.

Referring to fig. 1, the end of the sensor fixing groove 130 on one side is closed, specifically, the side of the sensor fixing groove 130, which is close to the fixing device 100 along the extending end 102 of the second bonding surface 120, may be provided with a groove wall 132, that is, on the side of the sensor fixing groove 130, which is close to the magnetic field extending end 210 of the pole head 200, when the magnetic sensor is fixed, the magnetic sensor is close to the magnetic field extending end 210 of the pole head 200, at this time, the magnetic sensor is positioned by the groove bottom 131 and the groove wall 132 of the sensor fixing groove 130, the groove wall 132 limits the magnetic sensor from three directions, and when the magnetic sensor is installed, only the magnetic sensor is required to be moved to be close to the extending end 102 and limited, and the magnetic sensor is pressed down towards the groove bottom 131 and bonded to the groove bottom 131, thereby fixing the magnetic sensor; in addition, when the magnetic sensor is replaced, quick positioning can be realized, the positions of the magnetic sensors before and after replacement are the same, and other positioning or measuring tools are not required.

The foregoing has outlined and described the basic principles, features, and advantages of the present utility model in order that the description that follows is merely an example of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, but rather that the foregoing embodiments and description illustrate only the principles of the utility model, and that the utility model is susceptible to various equivalent changes and modifications without departing from the spirit and scope of the utility model, all of which are intended to be within the scope of the utility model as hereinafter claimed.

Claims (7)

1. A magnetic sensor fixture, characterized in that: the fixing device is provided with a first bonding surface and a second bonding surface, a preset included angle is formed between the first bonding surface and the second bonding surface, the first bonding surface and the second bonding surface are respectively bonded to the pole head of the electromagnet, and the second bonding surface is bonded to the magnetic field extension pole face of the pole head;

The fixing device is provided with a sensor fixing groove, the groove bottom of the sensor fixing groove at least partially extends along the direction parallel to the second fitting surface, a space is arranged between the groove bottom and the second fitting surface, and the sensor fixing groove is configured in a mode capable of limiting the magnetic sensor.

2. A magnetic sensor mount as in claim 1, wherein: the bottom of the sensor fixing groove is provided with a through hole, and the through hole penetrates through the second attaching surface and the bottom of the groove.

3. A magnetic sensor mount as in claim 1, wherein: the fixing device is also provided with a positioning flange which extends to one side of the pole head.

4. A magnetic sensor mount as in claim 3, wherein: the positioning flange is provided with a third binding face, the third binding face is attached to the pole head, and the third binding face and the first binding face and the second binding face form preset included angles respectively.

5. A magnetic sensor mount as in claim 3, wherein: the positioning flange is embedded with the pole head.

6. A magnetic sensor mount as in claim 1, wherein: the fixing device is further provided with a mounting hole, and a screw penetrates through the mounting hole to be in threaded connection with the pole head.

7. A magnetic sensor mount as in claim 1, wherein: the sensor fixing groove is close to the fixing device along one side of the extending end of the second fitting surface.