Connecting interface of flexible magnetic signal sensor

Abstract

The utility model relates to the technical field of sensors, in particular to a connecting interface of a flexible magnetic signal sensor, which comprises a main body, a locking nut and a locking sleeve, the locking nut is rotatably arranged on the main body, the locking sleeve is fixedly sleeved at the second end of a flexible coil, and the locking sleeve is fixedly sleeved at the second end of the flexible coil. During production and assembly, the Hall chip is fixed on the slot of the main body, the first end of the flexible coil is fixedly inserted into the first connecting slot and is close to one side of the Hall chip, and the second end of the flexible coil is wound on the tested wire and is in threaded connection with the locking nut through the locking sleeve. The second end can extend into the second connecting groove and be always close to the other side of the Hall chip by manually screwing the locking nut, so that a worker can operate and extract data conveniently, and the problem of measured data distortion caused by distance variation between the second end of the flexible coil and the Hall chip can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a connection interface of a flexible magnetic signal sensor. Background Art

[0002] A magnetic signal sensor is a device that detects physical quantities by converting changes in the magnetic properties of a sensitive element caused by external factors such as magnetic fields, currents, stress and strain, temperature, and light into electrical signals. Most existing magnetic signal sensors attach one side of a Hall effect sensor chip to one end of a flexible coil. After the flexible coil is wrapped around a wire, the other end of the flexible coil is manually brought close to the other side of the sensor chip. This method requires the operator to constantly hold the sensor chip and the other end of the flexible coil close together to complete the detection, making it inconvenient. Furthermore, if the operator mistakenly changes the distance between the other end of the flexible coil and the sensor chip, the measurement results will be affected, leading to data distortion. Utility Model Content

[0003] To achieve the above objectives, the present invention provides a connection interface for a flexible magnetic signal sensor, comprising:

[0004] The main body has a first connecting groove and a second connecting groove at opposite ends, respectively. The side of the main body is also provided with a slot for fixing and installing a Hall chip. The first end of the flexible coil is fixedly inserted into the first connecting groove and close to one side of the Hall chip.

[0005] A locking nut is rotatably disposed on one end of the main body having the second connecting groove.

[0006] A locking sleeve, which is fixedly sleeved on the second end of the flexible coil, and the surface of the locking sleeve has an external thread;

[0007] The locking sleeve is detachably connected to the locking nut. Screwing the locking nut can drive the locking sleeve into the second connecting groove and bring the second end close to the other side of the Hall chip, or drive the locking sleeve to separate from the locking nut.

[0008] In some possible embodiments, the main body includes two half shells arranged in a mirror image, and the two half shells are fixed by bonding, riveting, or screwing.

[0009] In some possible embodiments, a mounting hole is formed on one side of the second connecting groove of the half shell, and the locking nut is placed in the mounting hole and protrudes from the surface of the half shell.

[0010] In some possible embodiments, a fixing ring groove is formed on a side surface of the first connecting groove, the first end is adhesively fixed in the first connecting groove, and the fixing ring groove is filled with adhesive.

[0011] In some possible embodiments, anti-slip knurling is formed on the outer side of the locking nut.

[0012] In some possible embodiments, the slot is provided in the middle of the main body.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the connection interface of the present invention includes a main body, a locking nut and a locking sleeve, the locking nut is rotatably set on the main body, the locking sleeve is fixedly sleeved on the second end of the flexible coil, and the Hall chip is fixed to the slot of the main body during production and assembly, and the first end of the flexible coil is fixedly inserted into the first connecting groove and close to one side of the Hall chip. The second end of the flexible coil is wound around the measured wire and threadedly connected to the locking nut through the locking sleeve. Manually screwing the locking nut can make the second end extend into the second connecting groove and always close to the other side of the Hall chip, which is convenient for staff to operate and extract data, and can effectively avoid the problem of measurement data distortion caused by changes in the distance between the second end of the flexible coil and the Hall chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a cross-sectional structural diagram of a flexible magnetic signal sensor connection interface according to an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structural assembly of the connection interface of an embodiment of the present utility model.

[0017] Description of the accompanying figures: main body 10, half shell 101, first connecting groove 11, second connecting groove 12, slot 13, Hall chip 131, locking nut 14, anti-slip knurling 141, locking sleeve 15, external thread 151, mounting hole 16, fixing ring groove 17, flexible coil 20, first end 21, second end 22. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Reference Figure 1 and Figure 2 The connecting interface of a flexible magnetic signal sensor shown in the figure includes a main body 10, a locking nut 14 and a locking sleeve 15. The first connecting groove 11 and the second connecting groove 12 are respectively provided at the opposite ends of the main body 10. The first connecting groove 11 and the second connecting groove 12 are coaxially arranged. A slot 13 is also provided on the side of the main body 10 between the first connecting groove 11 and the second connecting groove 12. The Hall chip 131 can be plugged into and fixed on the slot 13. The first end 21 of the flexible coil 20 is fixedly plugged into the first connecting groove 11 and close to the side of the Hall chip 131. The locking nut 14 is rotatably provided at the end of the main body 10 having the second connecting groove 12. The locking sleeve 15 is fixedly sleeved on the second end 22 of the flexible coil 20, and an external thread 151 is formed on the surface of the locking sleeve 15. When in use, the second end 22 of the flexible coil 20 is wrapped around the measured wire and inserted into the second The connecting groove 12 is threadedly connected to the locking nut 14 through the locking sleeve 15. By manually screwing the locking nut 14, the second end 22 can be driven through the locking sleeve 15 to continue to extend into the second connecting groove 12 to the other side close to the Hall chip 131. Since the threaded connection between the locking nut 14 and the locking sleeve 15 has a self-locking effect, the locking nut 14 will not rotate without external force. Therefore, it can be ensured that even if the locking nut 14 or the second end 22 is loosened by hand, the second end 22 is always close to the Hall chip 131, effectively avoiding the problem of measurement data distortion caused by changes in the distance between the second end 22 and the Hall chip 131, and freeing the staff's hands, so that the staff can operate the external measuring instrument more calmly; after the measurement is completed, only the locking nut 14 needs to be screwed in the opposite direction to drive the second end 22 away from the Hall chip 131 and separate from the locking nut 14.

[0020] In some possible embodiments, the main body 10 includes two half shells 101 arranged in a mirror image, and the two half shells 101 are fixed to each other by gluing, riveting or screwing. During assembly, the locking nut 14 is first placed on the corresponding installation position of one of the half shells 101, and then the other half shell 101 is covered thereon and fixedly connected. After assembly, it is ensured that the locking nut 14 can rotate relative to the main body 10.

[0021] In some possible embodiments, a mounting hole 16 is provided on one side of the second connecting groove 12 on the half shell 101. The length of the mounting hole 16 is smaller than the diameter of the locking nut 14, and the sum of the thicknesses of the two half shells 101 is smaller than the diameter of the locking nut 14. Therefore, after assembly, the locking nut 14 can rotate in the mounting hole 16 but cannot fall out of the mounting hole 16, and a portion of the locking nut 14 protrudes from the surface of the half shell 101, which is convenient for manual operation of the locking nut 14.

[0022] In some possible embodiments, a fixing ring groove 17 is opened on the side of the first connecting groove 11, and the first end 21 is adhesively fixed in the second connecting groove 12. To ensure that the first end 21 is firmly bonded to the main body 10, adhesive can be filled into the fixing ring groove 17 or the fixing retaining ring can be put on the first end 21 and then filled with adhesive.

[0023] In some possible embodiments, an anti-slip knurling 141 is formed on the outer side of the locking nut 14 to facilitate manual operation of the locking nut 14 .

[0024] In some possible embodiments, the slot 13 is disposed in the middle of the main body 10 .

[0025] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention shall be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A connection interface for a flexible magnetic signal sensor, characterized in that: include: A main body (10) is provided with a first connection groove (11) and a second connection groove (12) at opposite ends thereof, and a slot (13) for fixing and installing a Hall chip (131) is also provided on a side surface of the main body (10); a first end (21) of the flexible coil (20) is fixedly inserted into the first connection groove (11) and close to one side of the Hall chip (131); A locking nut (14) is rotatably disposed on one end of the main body (10) having the second connecting groove (12). A locking sleeve (15) is fixedly sleeved on the second end (22) of the flexible coil (20), and the surface of the locking sleeve (15) has an external thread (151); The locking sleeve (15) is detachably connected to the locking nut (14), and screwing the locking nut (14) can drive the locking sleeve (15) into the second connecting groove (12) and make the second end (22) close to the other side of the Hall chip (131), or drive the locking sleeve (15) to separate from the locking nut (14).

2. The connection interface of the flexible magnetic signal sensor according to claim 1, characterized in that: The main body (10) comprises two half shells (101) arranged in a mirror image, and the two half shells (101) are fixed by bonding, riveting or screw connection.

3. The connection interface of the flexible magnetic signal sensor according to claim 2, characterized in that: A mounting hole (16) is provided on one side of the second connecting groove (12) on the half shell (101), and the locking nut (14) is placed in the mounting hole (16) and protrudes from the surface of the half shell (101).

4. The connection interface of the flexible magnetic signal sensor according to claim 1, characterized in that: A fixing ring groove (17) is provided on the side of the first connecting groove (11), the first end (21) is adhesively fixed in the first connecting groove (11), and the fixing ring groove (17) is filled with adhesive.

5. The connection interface of the flexible magnetic signal sensor according to claim 1, characterized in that: The outer side surface of the locking nut (14) is formed with anti-slip knurling (141).

6. The connection interface of the flexible magnetic signal sensor according to claim 1, characterized in that: The slot (13) is arranged in the middle of the main body (10).

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