Fully-detachable three-axis magnetic field sensor

Abstract

The utility model relates to the technical field of magnetic field sensors, and discloses a fully-detachable three-axis magnetic field sensor, which comprises a three-axis magnetic field sensing probe; the three-axis magnetic field sensing probe comprises a sensing chip module, a first network interface socket and a first shell; the sensing chip module and the first network port socket are both located in the first shell and detachably connected with the first shell. The sensing chip module is electrically connected with the first network interface socket; a first shell cover is detachably connected to the first shell so as to seal the first shell. According to the fully-detachable three-axis magnetic field sensor, when the sensor is damaged or breaks down in the using process, corresponding parts can be conveniently and rapidly detached and replaced, the maintenance convenience is greatly improved, the maintenance cost is reduced, the situation that the whole set of sensor is replaced due to tedious maintenance is avoided, and the service life of the sensor is prolonged. And the service life of the three-axis magnetic field sensor is correspondingly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic field sensors, in particular to a fully disassembled three-axis magnetic field sensor. Background Art

[0002] With the rapid development of modern science and technology, three-axis magnetic field sensors have shown wide application potential in many fields due to their unique performance. Whether it is used in the field of materials science to detect the magnetic field characteristics and distribution of materials, or in the field of geophysics to monitor geomagnetic field anomalies to predict earthquake activities and mineral resources, or in the field of biomedicine to monitor the magnetic field changes caused by human internal activities, three-axis magnetic field sensors play a vital role. In addition, in the field of positioning and navigation, three-axis magnetic field sensors are also favored due to their unique advantages.

[0003] However, despite the wide application prospects of three-axis magnetic field sensors, the maintenance problems they face in actual use cannot be ignored. Due to the influence of various factors such as chemical erosion of the environment, physical impact, human damage, and aging caused by long-term use, three-axis magnetic field sensors are inevitably prone to failure or damage. In particular, fluxgate three-axis magnetic field sensors are often complex and highly integrated in design due to their high precision requirements, which makes maintenance particularly difficult when the sensor fails or is damaged.

[0004] Due to the tight coupling and difficulty in disassembly of internal components, traditional maintenance methods often require the entire sensor to be returned to the factory for repair, which is not only time-consuming and labor-intensive, but also costly. Therefore, a fully disassembled three-axis magnetic field sensor is required. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model proposes a fully disassembled three-axis magnetic field sensor to solve the above technical problems.

[0006] A fully detachable three-axis magnetic field sensor comprises: a three-axis magnetic field sensing probe; the three-axis magnetic field sensing probe comprises a sensor chip module, a first network port socket and a first shell; the sensor chip module and the first network port socket are both located in the first shell and are detachably connected to the first shell respectively; the sensor chip module and the first network port socket are electrically connected; a first shell cover is detachably connected to the first shell to close the first shell.

[0007] Furthermore, it also includes a first circuit board installed in the first shell, a plurality of first circular holes are opened on the first circuit board, each of the first circular holes is provided with a first copper sheet, the sensor chip module is installed on the first circuit board, and the sensor chip module is electrically connected to the plurality of first copper sheets.

[0008] Furthermore, a plurality of card strips are provided on the first circuit board, a plurality of first card slots are provided in the first housing, and the card strips are engaged with the first card slots.

[0009] Furthermore, a second card slot is provided in the first shell, and the first network port socket is card-connected with the second card slot.

[0010] Furthermore, it also includes a magnetic field signal acquisition module, and the three-axis magnetic field sensing probe is electrically connected to the magnetic field signal acquisition module;

[0011] The magnetic field signal acquisition module includes a magnetic field signal processing chip, a second network port socket, a USB socket, a power interface and a second housing;

[0012] The magnetic field signal processing chip, the second network port socket and the USB socket are all located in the second housing, the power interface is located on the second housing, and the magnetic field signal processing chip, the second network port socket, the USB socket and the power interface are all detachably connected to the second housing;

[0013] The magnetic field signal processing chip is electrically connected to the second network port socket, the USB socket and the power interface respectively;

[0014] The second shell is detachably connected to a second shell cover to close the second shell.

[0015] Furthermore, the magnetic field signal processing chip is detachably connected to the inside of the second housing via copper screws.

[0016] Furthermore, the second network port socket is detachably connected to the inside of the second shell via copper screws.

[0017] Furthermore, the USB socket is detachably connected to the inside of the second shell via copper screws.

[0018] Furthermore, the power interface is detachably connected to the second housing via copper screws.

[0019] Furthermore, it also includes a magnetic field data control module, and the magnetic field data control module is electrically connected to the magnetic field signal acquisition module.

[0020] The utility model adopting the above technical solution has the following advantages:

[0021] When the three-axis magnetic field sensor of the utility model encounters damage or failure during use, the corresponding parts can be conveniently and quickly disassembled and replaced, which greatly improves the convenience of maintenance, reduces the cost of maintenance, avoids the replacement of the entire set of sensors due to cumbersome maintenance, and correspondingly increases the service life of the three-axis magnetic field sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0023] Figure 1 This is a structural schematic diagram of a fully disassembled three-axis magnetic field sensor of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a three-axis magnetic field sensing probe in a fully disassembled three-axis magnetic field sensor of the utility model;

[0025] Figure 3 It is a structural schematic diagram of a sensor chip module of a three-axis magnetic field sensor probe in a fully disassembled three-axis magnetic field sensor of the utility model;

[0026] Figure 4 It is a structural schematic diagram of a first network port socket of a three-axis magnetic field sensor probe in a fully disassembled three-axis magnetic field sensor of the utility model;

[0027] Figure 5 This is a structural schematic diagram of a magnetic field signal acquisition module in a fully disassembled three-axis magnetic field sensor of the utility model;

[0028] Figure 6 This is a structural schematic diagram of a magnetic field signal processing chip of a magnetic field signal acquisition module in a fully disassembled three-axis magnetic field sensor of the utility model;

[0029] Figure 7 This is a structural schematic diagram of a USB socket of a magnetic field signal acquisition module in a fully disassembled three-axis magnetic field sensor of the utility model;

[0030] Reference numerals:

[0031] Three-axis magnetic field sensor probe 1, sensor chip module 11,

[0032] First network port socket 12, fifth copper sheet 121, plug pin 122,

[0033] The first housing 13,

[0034] The first circuit board 14, the first copper sheet 141, the clamping strip 142,

[0035] Magnetic field signal acquisition module 2,

[0036] Magnetic field signal processing chip 21, second copper sheet 211, third copper sheet 212, fourth copper sheet 213,

[0037] USB socket 22, sixth copper sheet 221, plug pin 222, control circuit board 223,

[0038] Power interface 23, second housing 24,

[0039] Magnetic field data control module 3. DETAILED DESCRIPTION

[0040] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0041] like Figure 1 to Figure 7 As shown, a fully disassembled three-axis magnetic field sensor of the utility model comprises: a three-axis magnetic field sensing probe 1; the three-axis magnetic field sensing probe 1 comprises a sensor chip module 11, a first network port socket 12 and a first shell 13, the first shell 13 is made of tempered glass material and is a rectangular parallelepiped; the sensor chip module 11 and the first network port socket 12 are both located in the first shell 13, and are respectively detachably connected to the first shell 13; the sensor chip module 11 and the first network port socket 12 are electrically connected; a first shell cover (not shown in the figure) is detachably connected to the first shell 13 to close the first shell 13, and the first shell 13 is fixed by a rubber suction cup inside the tempered glass when it is closed.

[0042] In some embodiments, when the three-axis magnetic field sensor of the present invention encounters damage or failure during use, the corresponding parts can be conveniently and quickly disassembled and replaced, which greatly improves the convenience of maintenance, reduces the cost of maintenance, avoids the replacement of the entire set of sensors due to cumbersome maintenance, and correspondingly increases the service life of the three-axis magnetic field sensor.

[0043] Specifically, the sensor chip module 11 is a chip module based on magnetoresistance effect. The sensor chip module 11 includes a sensor chip in the x direction, a sensor chip in the y direction, a sensor chip in the z direction and a control chip, and is used to measure the three-axis magnetic induction intensity.

[0044] Specifically, it also includes a first circuit board 14 installed in the first shell 13, and four first circular holes are symmetrically opened on the first circuit board 14. The periphery of each first circular hole is covered with a first copper sheet 141, and the first copper sheets 141 are separated and insulated. The sensor chip module 11 is installed on the first circuit board 14, and the sensor chip module 11 is electrically connected to the eight first copper sheets 141. Each first copper sheet 141 is detachably connected to a copper wire by a copper screw, and the copper wire is connected to the first network port socket 12.

[0045] Specifically, the first circuit board 14 is symmetrically mounted with a clamping strip 142 , a first clamping slot is defined in the first housing 13 , and the clamping strip 142 is clamped in the first clamping slot.

[0046] Specifically, a second card slot is defined in the first housing 13 , and the first network port socket 12 is connected to the second card slot.

[0047] In some embodiments, the first network port socket 12 is an eight-core socket, and eight sockets are provided on the first network port socket 12. The periphery of each socket is covered with a fifth copper sheet 121. Each fifth copper sheet 121 is detachably connected to a copper wire via a copper screw, and is electrically connected to the eight first copper sheets 141 in the sensor chip module 11 via eight copper wires.

[0048] Eight pins 122 are installed on the first network port socket 12. The pins 122 are made of pure copper plated with gold and are used to connect to the network cable strip. The first network port socket 12 is shielded by copper sheets and sends the magnetic induction intensity information measured by the three-axis magnetic field sensor probe 1 to the magnetic field signal acquisition module 2.

[0049] The materials used in the entire three-axis magnetic field sensor probe 1, except for the three sensor chips, are all non-magnetic materials. The tempered glass, rubber suction cup, copper wire, and copper sheet are also non-magnetic materials, avoiding internal magnetic field interference.

[0050] Specifically, it also includes a magnetic field signal acquisition module 2, and the three-axis magnetic field sensing probe 1 is electrically connected to the magnetic field signal acquisition module 2;

[0051] The magnetic field signal acquisition module 2 includes a magnetic field signal processing chip 21, a second network port socket, a USB socket 22, a power interface 23 and a second shell 24, and the second shell 24 is made of aluminum alloy material;

[0052] The magnetic field signal processing chip 21, the second network port socket and the USB socket 22 are all located in the second housing 24, the power interface 23 is located on the second housing 24, and the magnetic field signal processing chip 21, the second network port socket, the USB socket 22 and the power interface 23 are all detachably connected to the second housing 24;

[0053] The magnetic field signal processing chip 21 is electrically connected to the second network port socket, the USB socket 22 and the power interface 23 respectively;

[0054] A second shell cover (not shown) is detachably connected to the second shell 24 to close the second shell 24 . The second shell 24 is connected to the second shell cover by detachable copper screws.

[0055] In some embodiments, the first network port socket 12 of the three-axis magnetic field sensor probe 1 and the second network port socket of the magnetic field signal acquisition module 2 are connected through an eight-core shielded network cable (not shown in the figure). The eight-core shielded network cable adopts double-layer shielding of copper braided mesh and aluminum foil. The network cable plugs at the two ends of the eight-core shielded network cable are made of pure copper gold-plated and wrapped with copper sheet shielding.

[0056] Specifically, the magnetic field signal processing chip 21 is detachably connected to the inside of the second housing 24 via copper screws.

[0057] In some embodiments, the magnetic field signal processing chip 21 is a rectangular circuit board, in which four corners are fixed to the inside of the second shell 24 by removable copper screws, and four second circular holes are symmetrically opened on the circuit board. The periphery of each second circular hole is covered with a second copper sheet 211, and each second copper sheet 211 is detachably connected to a copper wire by a copper screw, and the copper wire is connected to the second network port socket.

[0058] Four third circular holes are opened on the left side of the rectangular circuit board. The periphery of each third circular hole is covered with a third copper sheet 212 . Each third copper sheet 212 is detachably connected to a copper wire via a copper screw, and the copper wire is connected to the USB socket 22 .

[0059] Two fourth circular holes are opened on the right side of the rectangular circuit board. The periphery of each fourth circular hole is covered with a fourth copper sheet 213. Each fourth copper sheet 213 is detachably connected to a copper wire via a copper screw, and the copper wire is connected to the power interface 23.

[0060] Specifically, the second network port socket is detachably connected to the inside of the second housing 24 via copper screws.

[0061] In some implementations, the second network port socket has the same structure as the first network port socket 12 , also having eight cores, but the second network port socket is connected to the eight second copper sheets 211 in the magnetic field signal processing chip 21 .

[0062] Specifically, the USB socket 22 is detachably connected to the interior of the second housing 24 via copper screws.

[0063] In some embodiments, the socket of the USB socket 22 is provided with four pins 222, and the insides of the four pins 222 are connected to the control circuit board 223 of the USB socket 22. The lower end of the USB socket 22 uses four sixth copper sheets 221, which are connected to the control circuit board 223 of the USB socket 22. The sixth copper sheet 221 is detachably connected to the copper wire through copper screws, and the copper wire is connected to the third copper sheet 212 on the left side of the magnetic field signal processing chip 21.

[0064] The magnetic field signal processing chip 21 of the magnetic field signal acquisition module 2 and the magnetic field data control module 3 are connected via a USB data cable.

[0065] Specifically, the power interface 23 is detachably connected to the second housing 24 via copper screws.

[0066] In some embodiments, the power interface 23 is fixed to the second shell 24 with detachable copper screws. One end of the power interface 23 inside the second shell 24 has a socket fixed with two detachable copper screws, which can fix two copper wires, and the copper wires are connected to the fourth copper sheet 213 in the magnetic field signal processing chip 21.

[0067] Specifically, it also includes a magnetic field data control module 3 , which is electrically connected to the magnetic field signal acquisition module 2 .

[0068] In some implementations, the magnetic field data control module 3 is a host computer processing software on a personal computer.

[0069] The host computer processing software on the personal computer is connected to the magnetic field signal acquisition module 2 through a USB data cable, and the USB data cable is double-shielded with a copper braided mesh and aluminum foil. The host computer processing software can perform functions such as starting data acquisition, stopping data acquisition, viewing, and saving.

[0070] A three-axis magnetic field sensing probe 1 measures a three-axis magnetic field signal and sends the measured three-axis magnetic field signal to a magnetic field signal acquisition module 2;

[0071] The magnetic field signal acquisition module 2 processes the three-axis magnetic field signal into three-axis magnetic induction intensity and sends it to the magnetic field data control module 3;

[0072] The magnetic field data control module 3 processes the measured three-axis magnetic induction intensity.

[0073] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A fully disassembled three-axis magnetic field sensor, characterized in that: include: Three-axis magnetic field sensing probe; The three-axis magnetic field sensor probe includes a sensor chip module, a first network port socket and a first housing; The sensor chip module and the first network port socket are both located in the first housing and are detachably connected to the first housing respectively; The sensor chip module is electrically connected to the first network port socket; The first shell is detachably connected to a first shell cover to close the first shell.

2. A fully disassembled three-axis magnetic field sensor according to claim 1, characterized in that: It also includes a first circuit board installed in the first shell, the first circuit board is provided with a plurality of first circular holes, each of the first circular holes is provided with a first copper sheet, the sensor chip module is installed on the first circuit board, and the sensor chip module is electrically connected to the plurality of first copper sheets.

3. A fully disassembled three-axis magnetic field sensor according to claim 2, characterized in that: The first circuit board is provided with a plurality of card strips, the first housing is provided with a plurality of first card slots, and the card strips are engaged with the first card slots.

4. A fully disassembled three-axis magnetic field sensor according to claim 1, characterized in that: A second card slot is provided in the first shell, and the first network port socket is card-connected with the second card slot.

5. The fully disassembled three-axis magnetic field sensor according to claim 1, characterized in that: It also includes a magnetic field signal acquisition module, and the three-axis magnetic field sensing probe is electrically connected to the magnetic field signal acquisition module; The magnetic field signal acquisition module includes a magnetic field signal processing chip, a second network port socket, a USB socket, a power interface and a second housing; The magnetic field signal processing chip, the second network port socket and the USB socket are all located in the second housing, the power interface is located on the second housing, and the magnetic field signal processing chip, the second network port socket, the USB socket and the power interface are all detachably connected to the second housing; The magnetic field signal processing chip is electrically connected to the second network port socket, the USB socket and the power interface respectively; The second shell is detachably connected to a second shell cover to close the second shell.

6. A fully disassembled three-axis magnetic field sensor according to claim 5, characterized in that: The magnetic field signal processing chip is detachably connected to the inside of the second housing via copper screws.

7. The fully disassembled three-axis magnetic field sensor according to claim 5, characterized in that: The second network port socket is detachably connected to the inside of the second shell via copper screws.

8. The fully disassembled three-axis magnetic field sensor according to claim 5, characterized in that: The USB socket is detachably connected to the inside of the second shell via copper screws.

9. The fully disassembled three-axis magnetic field sensor according to claim 5, characterized in that: The power interface is detachably connected to the second housing via copper screws.

10. The fully disassembled three-axis magnetic field sensor according to claim 5, characterized in that: It also includes a magnetic field data control module, which is electrically connected to the magnetic field signal acquisition module.

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