A magnetic field device with variable magnetic field size and use method thereof

Abstract

The present invention discloses a magnetic field device with variable magnetic field size and a method of using the device, which relates to the technical field of magnetic field devices, and includes a substrate, a right-angle plate 1, a magnetic field strength detection mechanism, a shielding mechanism, a temperature conduction mechanism, a heat preservation mechanism, a temperature control mechanism and a control module, wherein a right-angle plate 1 is installed on the top of the substrate, a control module is installed on the top of the right-angle plate 1, a magnetic field strength detection mechanism is arranged on the top of the right-angle plate 1, an electric telescopic unit 1 is installed on the top of the right-angle plate 1, a shielding mechanism is arranged on the output end of the electric telescopic unit 1, the temperature conduction mechanism is arranged on the top of the shielding mechanism, and the heat preservation mechanism is arranged at one end of the temperature conduction mechanism. The present invention measures the magnetic field strength and magnetic field direction of different places by a magnetometer and a compass, thereby facilitating people to place the experimental device at different positions of different magnetic field strengths and magnetic field directions on the substrate in different orientations.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic field devices, and in particular to a magnetic field device with variable magnetic field size and a use method thereof. Background Art

[0002] In some biological experimental sites, it is necessary to simulate the magnetic field environment to study the impact of the magnetic field on the characteristics of biological activities. A magnetic field device is a device that generates a magnetic field. The size of the magnetic field generated by the magnetic field device generally needs to be controllable. Biological experiments also need to be conducted at different magnetic field sizes. Some organisms are also sensitive to the direction of the magnetic field, so it is also necessary to study the impact of the magnetic field direction on biological experiments.

[0003] The defects of existing magnetic field devices are:

[0004] 1. The prior art KR101247193B1 discloses a device for generating a magnetic field. This technology cannot measure the direction and size of the magnetic field. It is inconvenient for people to place the experimental device at a suitable magnetic field size and magnetic field direction during biological experiments. Therefore, a variable magnetic field size device that can measure the magnetic field size and magnetic field direction at various locations around the magnetic field device is needed to solve this problem.

[0005] 2. The prior art KR1020150066127A discloses a device for generating a uniform magnetic field. This technology does not have a structure for controlling the direction of the generated magnetic field. Some biological experiments do not require a magnetic field. Therefore, when doing comparative experiments, it is necessary to avoid the influence of the magnetic field on the comparative ratio. Therefore, a variable magnetic field device that can shield a certain direction of the magnetic field device is needed to solve this problem.

[0006] 3. The prior art KR1020110051796A discloses a device for generating a pulsed magnetic field. This technology does not have a structure for reusing the heat generated in the magnetic field device, which easily causes waste of electric energy. Therefore, a variable magnetic field device that can recycle the heat generated in the magnetic field device is needed to solve this problem.

[0007] 4. Prior art CN107017071A discloses an alternating magnetic field generating device and an alternating magnetic field generating method. This technology does not have a structure for recovering heat from the magnetic field device. When the heat generated by the magnetic field device is recovered and transferred to the container of the biological experiment device, it is easy to cause the temperature in the container to be too low or too high, affecting the accuracy of the experiment. Therefore, a variable magnetic field device that can control the stability of the temperature in the container when the magnetic field device recovers heat is needed to solve this problem. Summary of the invention

[0008] One purpose of the present application is to provide a magnetic field device with variable magnetic field size and a method of use, which can solve the technical problems raised in the prior art.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a magnetic field device with variable magnetic field size, comprising a substrate, a right-angle plate 1, a magnetic field strength detection mechanism, a shielding mechanism, a temperature conduction mechanism, a heat preservation mechanism, a temperature control mechanism and a control module, the top of the substrate is equipped with a right-angle plate 1, the top of the right-angle plate 1 is equipped with a control module, the top of the right-angle plate 1 is provided with a magnetic field strength detection mechanism, the top of the right-angle plate 1 is equipped with an electric telescopic unit 1, and the output end of the electric telescopic unit 1 is provided with a shielding mechanism;

[0010] The temperature conduction mechanism is arranged on the top of the shielding mechanism to transfer the heat inside the shielding mechanism to the heat preservation mechanism. The heat preservation mechanism is arranged at one end of the temperature conduction mechanism to heat the experimental target. The temperature control mechanism is used to adjust the internal temperature of the heat preservation mechanism.

[0011] Preferably, a coil is installed on the top of the substrate, a power supply is installed on the top of the substrate, a circuit breaker is installed on the top of the substrate, and a variable resistor is installed on the top of the substrate.

[0012] Preferably, the magnetic field strength detection mechanism includes a tube body, a threaded rod 1, a rotating rod, a storage tube, a moving rod, a guide ring, a threaded rod 2, a lifting rod, a plate body 1, a magnetometer and a compass. A threaded rod 1 is installed through one side of the tube body, a rotating rod is movably installed on the inner side of the tube body, a catheter is installed at one end of the rotating rod, a moving rod is movably installed on the inner side of the storage tube, a guide ring is installed at one end of the moving rod, a lifting rod is movably installed on the inner side of the guide ring, a threaded rod 2 is installed through one side of the guide ring, a plate body 1 is installed at one end of the lifting rod, a magnetometer is installed on the top of the plate body 1, and a compass is installed on the top of the plate body 1.

[0013] Preferably, the shielding mechanism includes an electric telescopic unit 1, a plastic box, a right-angle plate 2, an electric telescopic unit 2 and a shielding plate, the plastic box is installed at the output end of the electric telescopic unit 1, the right-angle plate 2 is symmetrically installed on the top of the plastic box, the electric telescopic unit 2 is installed on the top of the right-angle plate 2, the electric telescopic unit 2 is connected to the control module by electrical signals, and the shielding plate is installed at the output end of the electric telescopic unit 2.

[0014] Preferably, the temperature conduction mechanism includes a thermally conductive silicone rod, a thermally conductive silicone sheet, thermal insulation cotton, a hose and a fan. The thermally conductive silicone rod is installed through the top of the plastic box, and one end of the thermally conductive silicone rod penetrates the top inner wall of the plastic box, one end of the thermally conductive silicone rod is installed with a thermally conductive silicone sheet, and thermal insulation cotton is installed on the outside of the thermally conductive silicone rod. The hose is installed through the top of the plastic box, and the fan is installed on the top inner wall of the plastic box, and the fan is located below the hose, and the fan is connected to the control module by electrical signals.

[0015] Preferably, the heat-insulating mechanism comprises a heat-conducting box and heat-dissipating holes, the top of the heat-conducting box is connected to one end of a heat-conducting silicone soft rod, and a plurality of heat-dissipating holes are formed through the front of the heat-conducting box.

[0016] Preferably, the temperature control mechanism includes a temperature sensing unit 1, an electric telescopic unit 3, a lifting plate, a baffle and a temperature sensing unit 2, the temperature sensing unit 1 is installed on the back inner wall of the plastic box, the temperature sensing unit 1 is electrically connected to the control module, the electric telescopic unit 3 is symmetrically installed on both sides of the heat-conducting box, the electric telescopic unit 3 is electrically connected to the control module, a lifting plate is installed at the output end of the electric telescopic unit 3, a baffle is installed at the bottom of the lifting plate, the temperature sensing unit 2 is installed on the back inner wall of the heat-conducting box, and the temperature sensing unit 2 is electrically connected to the control module.

[0017] Preferably, a guide frame is symmetrically installed at the bottom of the base plate, a plate body 2 is movably installed inside the guide frame, and a threaded rod 3 is installed through one side of the guide frame.

[0018] Preferably, the method for using the variable magnetic field device is as follows:

[0019] S1. The magnetometer and the compass are driven to rotate by rotating the storage tube, and the moving rod is driven to move forward and backward to make the magnetometer and the compass move forward and backward, so that the magnetometer and the compass measure the magnetic field strength and direction at different places, thereby making it convenient for people to place the experimental device at different positions of different magnetic field strengths and directions at different orientations of the substrate;

[0020] S2, the plastic box moves downward, and when the experimental device container in a certain direction does not need a magnetic field, the shielding plate in a certain direction moves downward to shield the magnetic field;

[0021] S3. Place the experimental device to be heated inside the thermal box. The heat generated by the coil and the variable resistor inside the plastic box is transferred to the thermal box through the thermally conductive silicone sheet and the thermally conductive silicone soft rod. The thermally conductive box heats the internal experimental device through contact.

[0022] S4. The fan blows the hot air inside the plastic box to the inside of the hose, and then the hot air enters the heat-conducting box to accelerate the heating of the experimental device.

[0023] Preferably, the step S1 further includes the following steps:

[0024] S11, when the experimental device is placed in front of the base plate, the second plate is moved forward, and the experimental device is placed above the second plate;

[0025] The S3 also includes the following steps:

[0026] S31, when the temperature inside the plastic box is higher than the set value, the plastic box moves upward to accelerate the temperature dissipation inside the plastic box;

[0027] S32. When the temperature inside the heat conduction box is higher than the set value, the baffle moves up and the heat inside the heat conduction box is dissipated through the heat dissipation holes.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The present invention drives the magnetometer and the compass to rotate by rotating the storage tube, and at the same time drives the magnetometer and the compass to move forward and backward by moving the moving rod, so that the magnetometer and the compass measure the magnetic field strength and direction at different places, thereby making it convenient for people to place the experimental device at positions with different magnetic field strengths and directions at different orientations of the substrate, and the variable magnetic field device measures the magnetic field strength and direction at different places through the magnetometer and the compass, thereby making it convenient for people to place the experimental device at positions with different magnetic field strengths and directions at different orientations of the substrate.

[0030] 2. When the experimental device container in a certain direction of the present invention does not need a magnetic field, the shielding plate in a certain direction moves down to shield the magnetic field, making the magnetic field size variable. When the experimental device container in a certain direction of the magnetic field device does not need a magnetic field, the shielding plate in a certain direction moves down to shield the magnetic field.

[0031] 3. The present invention places the experimental device that needs to be heated inside the thermally conductive box. The heat generated by the coil and the variable resistor inside the plastic box is transferred to the thermally conductive box through the thermally conductive silicone sheet and the thermally conductive silicone soft rod. The thermally conductive box heats the internal experimental device through contact, which reduces heat waste and saves electric energy. The magnetic field device with a variable magnetic field size generates heat through the coil and the variable resistor inside the plastic box and transfers it to the thermally conductive box through the thermally conductive silicone sheet and the thermally conductive silicone soft rod. The thermally conductive box heats the internal experimental device through contact, which reduces heat waste and saves electric energy.

[0032] 4. When the temperature inside the plastic box of the present invention is higher than the set value, the plastic box moves up to accelerate the temperature dissipation inside the plastic box. When the temperature inside the heat-conducting box is higher than the set value, the baffle moves up, and the heat inside the heat-conducting box is dissipated through the heat dissipation holes, which is convenient for automatically adjusting the temperature on the coil and inside the heat-conducting box, so that the magnetic field size is variable. When the temperature inside the plastic box is higher than the set value, the plastic box moves up to accelerate the temperature dissipation inside the plastic box. When the temperature inside the heat-conducting box is higher than the set value, the baffle moves up, and the heat inside the heat-conducting box is dissipated through the heat dissipation holes, which is convenient for automatically adjusting the temperature on the coil and inside the heat-conducting box. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A perspective view of the present invention;

[0034] Figure 2 It is a schematic diagram of the substrate structure of the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of a right angle plate of the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the shielding plate of the present invention;

[0037] Figure 5 It is a schematic diagram of the structure of the plastic box of the present invention;

[0038] Figure 6 It is a schematic diagram of the storage tube structure of the present invention;

[0039] Figure 7 It is a schematic diagram of the structure of A of the present invention;

[0040] Figure 8 It is a schematic diagram of the structure of the heat conduction box of the present invention;

[0041] Fig. 9 The figure is a flow chart of the method for using the present invention.

[0042] In the figure: 1. substrate; 2. coil; 3. power supply; 4. circuit breaker; 5. variable resistor; 6. right angle plate 1; 7. control module; 8. electric telescopic unit 1; 9. plastic box; 10. right angle plate 2; 11. electric telescopic unit 2; 12. shielding plate; 13. tube body; 14. threaded rod 1; 15. rotating rod; 16. storage tube; 17. moving rod; 18. guide ring; 19. threaded rod 2; 20. lifting rod; 21. plate 1; 22. magnetometer; 23. compass; 24. temperature sensing unit 1; 25. thermal conductive silicone soft rod; 26. thermal conductive silicone sheet; 27. thermal insulation cotton; 28. thermal conductive box; 29. ​​heat dissipation hole; 30. hose; 31. fan; 32. electric telescopic unit 3; 33. lifting plate; 34. baffle; 35. temperature sensing unit 2; 36. guide frame; 37. threaded rod 3; 38. plate 2. DETAILED DESCRIPTION

[0043] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] See also Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the present invention: a magnetic field device with variable magnetic field size;

[0047] The device comprises a substrate 1, a right angle plate 6 is installed on the top of the substrate 1, a control module 7 is installed on the top of the right angle plate 6, an electric telescopic unit 8 is installed on the top of the right angle plate 6, a coil 2 is installed on the top of the substrate 1, a power supply 3 is installed on the top of the substrate 1, a circuit breaker 4 is installed on the top of the substrate 1, and a variable resistor 5 is installed on the top of the substrate 1. The substrate 1 can provide an installation position for other components of the device, the right angle plate 6 can provide an installation position for the electric telescopic unit 8, and the control module 7 is a controller that can receive signals from the temperature sensing unit 1 24 and the temperature sensing unit 2 35. At the same time, the electric telescopic unit 1 8, the electric telescopic unit 2 11, the fan 31 and the electric telescopic unit 3 32 can be controlled. The electric telescopic unit 1 8 is an electric telescopic rod, which can convert electrical energy into kinetic energy, thereby driving the plastic box 9 to move up and down. The coil 2 is an electric conductor, which can generate a magnetic field when energized. The coil 2, the power supply 3, the circuit breaker 4 and the variable resistor 5 are connected in sequence through wires. The power supply 3 can provide electrical energy for the coil 2, and the circuit breaker 4 plays a role in controlling the power off and power on of the coil 2. The variable resistor 5 can adjust the circuit resistance, thereby changing the current in the coil 2.

[0048] See also Figure 1 and Figure 6 , an embodiment provided by the present invention: a magnetic field device with variable magnetic field size;

[0049] The invention comprises a magnetic field strength detection mechanism, wherein the top of the right angle plate 6 is provided with the magnetic field strength detection mechanism, and the magnetic field strength detection mechanism comprises a tube body 13, a threaded rod 14, a rotating rod 15, a storage tube 16, a moving rod 17, a guide ring 18, a threaded rod 19, a lifting rod 20, a plate body 21, a magnetometer 22 and a compass 23. A threaded rod 14 is installed through one side of the tube body 13, a rotating rod 15 is movably installed inside the tube body 13, a guide tube is installed at one end of the rotating rod 15, a moving rod 17 is movably installed inside the storage tube 16, a guide ring 18 is installed at one end of the moving rod 17, a lifting rod 20 is movably installed inside the guide ring 18, a threaded rod 19 is installed through one side of the guide ring 18, a plate body 21 is installed at one end of the lifting rod 20, a magnetometer 22 is installed on the top of the plate body 21, a compass 23 is installed on the top of the plate body 21, and the tube body 1 3 can provide an installation position for the rotating rod 15, the threaded rod 14 can squeeze and fix the rotating rod 15 by rotating, the rotating rod 15 can provide an installation position for the storage tube 16, the rotating rod 15 can rotate, so that the storage tube 16 can rotate, the storage tube 16 can provide a guide for the moving rod 17, and at the same time provide a storage space for the moving rod 17, the moving rod 17 can drive the magnetometer 22 and the compass 23 to move forward and backward by moving forward and backward, the guide ring 18 can provide a guide for the lifting rod 20, so that the lifting rod 20 can move up and down, the threaded rod 21 can squeeze and fix the lifting rod 20 by rotating, the lifting rod 20 can drive the plate 1 21 to move up and down by moving up and down, the plate 1 21 can provide an installation position for the magnetometer 22 and the compass 23, the magnetometer 22 can measure the magnetic field strength, and the compass 23 can measure the magnetic field direction.

[0050] See also Figure 1 , Figure 2 and Figure 4 , an embodiment provided by the present invention: a magnetic field device with variable magnetic field size;

[0051] It includes a shielding mechanism. The output end of the electric telescopic unit 8 is provided with a shielding mechanism. The shielding mechanism includes an electric telescopic unit 8, a plastic box 9, a right-angle plate 10, an electric telescopic unit 11 and a shielding plate 12. The output end of the electric telescopic unit 8 is installed with a plastic box 9. The top of the plastic box 9 is symmetrically installed with a right-angle plate 10. The top of the right-angle plate 10 is installed with an electric telescopic unit 11. The electric telescopic unit 11 is electrically signal connected to the control module 7. The output end of the electric telescopic unit 11 is installed with a shielding plate 12. The electric telescopic unit 8 is an electric telescopic rod, which can convert electrical energy into kinetic energy, thereby driving the plastic box 9 to move up and down. The plastic box 9 can reduce the heat loss of the coil 2. The right-angle plate 10 can provide an installation position for the electric telescopic unit 11. The electric telescopic unit 11 is an electric telescopic rod, which can convert electrical energy into kinetic energy, thereby driving the shielding plate 12 to move up and down. The shielding plate 12 can shield the magnetic field in a certain direction generated by the coil 2 by moving downward.

[0052] See also Figure 1 , Figure 5 , Figure 7 and Figure 8 , an embodiment provided by the present invention: a magnetic field device with variable magnetic field size;

[0053] The heat conducting mechanism includes a temperature conducting mechanism, which is arranged on the top of the shielding mechanism and is used to transfer the heat inside the shielding mechanism to the heat preservation mechanism. The temperature conducting mechanism includes a heat-conducting silicone rod 25, a heat-conducting silicone sheet 26, heat-insulating cotton 27, a hose 30 and a fan 31. The heat-conducting silicone rod 25 is installed through the top of the plastic box 9, and one end of the heat-conducting silicone rod 25 passes through the top inner wall of the plastic box 9. The heat-conducting silicone sheet 26 is installed on one end of the heat-conducting silicone rod 25, and the heat-insulating cotton 27 is installed on the outside of the heat-conducting silicone rod 25. The hose 30 is installed through the top of the plastic box 9, and the fan 31 is installed. It is installed on the top inner wall of the plastic box 9, and the fan 31 is located below the hose 30. The fan 31 is electrically connected to the control module 7. The thermally conductive silicone rod 25 can transfer the heat of the thermally conductive silicone sheet 26 to the thermally conductive and 28. The thermally conductive silicone sheet 26 can transfer the heat of the coil 2 and the variable resistor 5 to the thermally conductive silicone rod 25. The thermal insulation cotton 27 can reduce the heat loss of the thermally conductive silicone rod 25. The hose 30 can allow the hot air in the plastic box 9 to enter the interior of the thermally conductive box 28 to provide a transmission path. The fan 31 can convert electrical energy into kinetic energy, thereby driving the air to flow quickly into the interior of the hose 30.

[0054] See also Figure 1 , Figure 5 and Figure 8 , an embodiment provided by the present invention: a magnetic field device with variable magnetic field size;

[0055] It includes a heat preservation mechanism, which is arranged at one end of the temperature conduction mechanism and is used to heat the experimental target. The heat preservation mechanism includes a heat conduction box 28 and a heat dissipation hole 29. The top of the heat conduction box 28 is connected to one end of the heat conduction silicone soft rod 25. A plurality of heat dissipation holes 29 are opened through the front of the heat conduction box 28. The heat conduction box 28 is metal and can transfer the heat of the heat conduction silicone soft rod 25 to the internal experimental device container through contact. The heat dissipation holes 29 can provide a discharge path for the heat inside the heat conduction box 28.

[0056] See also Figure 1 , Figure 5 and Figure 8 , an embodiment provided by the present invention: a magnetic field device with variable magnetic field size;

[0057] The temperature control mechanism includes a temperature control mechanism, which is used to adjust the internal temperature of the heat preservation mechanism. The temperature control mechanism includes a temperature sensing unit 1 24, an electric telescopic unit 3 32, a lifting plate 33, a baffle 34 and a temperature sensing unit 2 35. The temperature sensing unit 1 24 is installed on the back inner wall of the plastic box 9. The temperature sensing unit 1 24 is connected to the control module 7 by electrical signals. The electric telescopic unit 3 32 is symmetrically installed on both sides of the heat conduction box 28. The electric telescopic unit 3 32 is connected to the control module 7 by electrical signals. The output end of the electric telescopic unit 3 32 is installed with a lifting plate 33, and the bottom of the lifting plate 33 is installed with a baffle 34. The sensing unit 2 35 is installed on the back inner wall of the heat-conducting box 28. The temperature sensing unit 2 35 is connected to the control module 7 by electrical signals. The temperature sensing unit 1 24 is a temperature sensor that can detect the temperature inside the plastic box 9. The electric telescopic unit 32 is an electric telescopic rod that can convert electrical energy into kinetic energy, thereby driving the lifting plate 33 to move up and down. The lifting plate 33 can drive the baffle 34 to move up and down by moving up and down. The baffle 34 can close the heat dissipation hole 29 by moving down, thereby reducing the loss rate of hot air inside the heat-conducting box. The temperature sensing unit 2 35 is a temperature sensor that can detect the temperature inside the heat-conducting box 28.

[0058] See also Figure 1 and Figure 2 , an embodiment provided by the present invention: a magnetic field device with variable magnetic field size;

[0059] It includes a guide frame 36, which is symmetrically installed on the bottom of the base plate 1, and a plate body 2 38 is movably installed on the inner side of the guide frame 36. A threaded rod 37 is installed through one side of the guide frame 36. The guide frame 36 can provide guidance for the plate body 2 38 so that the plate body 2 38 can move back and forth. The plate body 2 38 can provide a placement position for the experimental device container, and the threaded rod 37 can squeeze and fix the plate body 2 38 by rotating.

[0060] The method of using the variable magnetic field device is as follows:

[0061] S1, the magnetometer 22 and the compass 23 are driven to rotate by rotating the storage tube 16, and the moving rod 17 is driven to move forward and backward to make the magnetometer 22 and the compass 23 move forward and backward, so that the magnetometer 22 and the compass 23 measure the magnetic field strength and direction at different places, thereby making it convenient for people to place the experimental device at different positions of different magnetic field strengths and directions at different orientations of the substrate 1;

[0062] S2, the plastic box 9 moves downward, and when the experimental device container in a certain direction does not need a magnetic field, the shielding plate 12 in a certain direction moves downward to shield the magnetic field;

[0063] S3, placing the experimental device to be heated inside the heat-conducting box 28, the heat generated by the coil 2 and the variable resistor 5 inside the plastic box 9 is transferred to the heat-conducting box 28 through the heat-conducting silicone sheet 26 and the heat-conducting silicone soft rod 25, and the heat-conducting box 28 heats the internal experimental device through contact;

[0064] S4, the fan 31 blows the hot air in the plastic box 9 to the inside of the hose 30, and then the hot air enters the heat-conducting box 28 to accelerate the heating of the experimental device.

[0065] S1 also includes the following steps:

[0066] S11, when the experimental device is placed in front of the substrate 1, the second plate 38 moves forward, and the experimental device is placed above the second plate 38;

[0067] S3 also includes the following steps:

[0068] S31, when the temperature inside the plastic box 9 is higher than the set value, the plastic box 9 moves upward to accelerate the temperature loss inside the plastic box 9;

[0069] S32 , when the temperature inside the heat-conducting box 28 is higher than the set value, the baffle 34 moves upward, and the heat inside the heat-conducting box 28 is dissipated through the heat dissipation holes 29 .

[0070] Working principle: Before using the variable magnetic field device, you should first check whether there are any problems that affect the use of the variable magnetic field device. By rotating the storage tube 16, the magnetometer 22 and the compass 23 are driven to rotate. At the same time, the moving rod 17 is moved forward and backward to drive the magnetometer 22 and the compass 23 to move forward and backward, so that the magnetometer 22 and the compass 23 measure the magnetic field strength and direction of different places, so that people can place the experimental device at different positions of different magnetic field strengths and directions of the substrate 1. The plastic box 9 moves downward. When the experimental device container in a certain direction does not need a magnetic field, the shielding plate 12 in a certain direction moves downward to shield the magnetic field. The experimental device that needs to be heated is placed inside the heat-conducting box 28. The heat generated by the coil 2 and the variable resistor 5 inside the plastic box 9 is transferred to the heat-conducting box 28 through the heat-conducting silicone sheet 26 and the heat-conducting silicone soft rod 25. The heat-conducting box 28 heats the internal experimental device through contact. When the temperature inside the plastic box 9 is higher than the set value, the plastic box 9 moves up to accelerate the dissipation of the temperature inside the plastic box 9. When the temperature inside the heat-conducting box 28 is higher than the set value, the baffle 34 moves up, and the heat inside the heat-conducting box 28 is dissipated through the heat dissipation holes 29. The fan 31 blows the hot air inside the plastic box 9 to the inside of the hose 30, and then the hot air enters the inside of the heat-conducting box 28 to accelerate the heating of the experimental device.

[0071] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference signs in the claims should not be regarded as limiting the rights involved.

Claims

1. A magnetic field device with variable magnetic field size, characterized in that: The invention comprises a substrate (1), a right-angle plate (6), a magnetic field strength detection mechanism, a shielding mechanism, a temperature conduction mechanism, a heat preservation mechanism, a temperature control mechanism and a control module (7), wherein the top of the substrate (1) is provided with a right-angle plate (6), the top of the right-angle plate (6) is provided with a control module (7), the top of the right-angle plate (6) is provided with a magnetic field strength detection mechanism, the top of the right-angle plate (6) is provided with an electric telescopic unit (8), and the output end of the electric telescopic unit (8) is provided with a shielding mechanism; The temperature conduction mechanism is arranged on the top of the shielding mechanism and is used to transfer the heat generated by the coil (2) and the variable resistor (5) inside the shielding mechanism to the heat preservation mechanism. The heat preservation mechanism is arranged at one end of the temperature conduction mechanism and is used to heat the experimental target. The temperature control mechanism is used to adjust the internal temperature of the heat preservation mechanism. The shielding mechanism comprises a plastic box (9), a second right-angle plate (10), a second electric telescopic unit (11) and a shielding plate (12); the plastic box (9) is mounted on the output end of the first electric telescopic unit (8); the second right-angle plate (10) is symmetrically mounted on the top of the plastic box (9); the second electric telescopic unit (11) is mounted on the top of the second right-angle plate (10); the second electric telescopic unit (11) is connected to the control module (7) by electrical signals; and the shielding plate (12) is mounted on the output end of the second electric telescopic unit (11).

2. A variable magnetic field device according to claim 1, characterized in that: A coil (2) is installed on the top of the substrate (1), a power supply (3) is installed on the top of the substrate (1), a circuit breaker (4) is installed on the top of the substrate (1), and a variable resistor (5) is installed on the top of the substrate (1).

3. A variable magnetic field device according to claim 1, characterized in that: The magnetic field intensity detection mechanism comprises a tube body (13), a threaded rod (14), a rotating rod (15), a storage tube (16), a moving rod (17), a guide ring (18), a threaded rod (19), a lifting rod (20), a plate body (21), a magnetometer (22) and a compass (23). The threaded rod (14) is installed through one side of the tube body (13), the rotating rod (15) is movably installed inside the tube body (13), and one end of the rotating rod (15) is installed A guide tube is provided, a moving rod (17) is movably installed on the inner side of the storage tube (16), a guide ring (18) is installed on one end of the moving rod (17), a lifting rod (20) is movably installed on the inner side of the guide ring (18), a threaded rod (19) is installed through one side of the guide ring (18), a plate body (21) is installed on one end of the lifting rod (20), a magnetometer (22) is installed on the top of the plate body (21), and a compass (23) is installed on the top of the plate body (21).

4. A variable magnetic field device according to claim 1, characterized in that: The temperature conduction mechanism comprises a heat-conducting silicone rod (25), a heat-conducting silicone sheet (26), heat-insulating cotton (27), a hose (30) and a fan (31); the heat-conducting silicone rod (25) is installed through the top of the plastic box (9), and one end of the heat-conducting silicone rod (25) passes through the inner wall of the top of the plastic box (9); one end of the heat-conducting silicone rod (25) is installed with a heat-conducting silicone sheet (26); the outer side of the heat-conducting silicone rod (25) is installed with a heat-insulating cotton (27); the hose (30) is installed through the top of the plastic box (9); the fan (31) is installed on the inner wall of the top of the plastic box (9), and the fan (31) is located below the hose (30); the fan (31) is connected to the control module (7) by electrical signals.

5. A variable magnetic field device according to claim 4, characterized in that: The heat-insulating mechanism comprises a heat-conducting box (28) and heat-dissipating holes (29); the top of the heat-conducting box (28) is connected to one end of the heat-conducting silicone soft rod (25); and a plurality of heat-dissipating holes (29) are formed through the front of the heat-conducting box (28).

6. A variable magnetic field device according to claim 5, characterized in that: The temperature control mechanism comprises a temperature sensing unit 1 (24), an electric telescopic unit 3 (32), a lifting plate (33), a baffle (34) and a temperature sensing unit 2 (35). The temperature sensing unit 1 (24) is mounted on the inner wall of the back side of the plastic box (9), and the temperature sensing unit 1 (24) is electrically connected to the control module (7). The electric telescopic unit 3 (32) is symmetrically mounted on both sides of the heat conducting box (28), and the electric telescopic unit 3 (32) is electrically connected to the control module (7). The output end of the electric telescopic unit 3 (32) is mounted with a lifting plate (33), and the bottom of the lifting plate (33) is mounted with a baffle (34). The temperature sensing unit 2 (35) is mounted on the inner wall of the back side of the heat conducting box (28), and the temperature sensing unit 2 (35) is electrically connected to the control module (7).

7. The variable magnetic field device according to claim 1, characterized in that: A guide frame (36) is symmetrically mounted on the bottom of the base plate (1), a second plate body (38) is movably mounted on the inner side of the guide frame (36), and a third threaded rod (37) is installed through one side of the guide frame (36).

8. A method for using a variable magnetic field device according to any one of claims 1 to 7, characterized in that: The method of using the variable magnetic field device is as follows: S1, the magnetometer (22) and the compass (23) are driven to rotate by rotating the storage tube (16), and the moving rod (17) is driven to move forward and backward to drive the magnetometer (22) and the compass (23) to move forward and backward, so that the magnetometer (22) and the compass (23) measure the magnetic field strength and magnetic field direction at different places, thereby making it convenient for people to place the experimental device at different positions of different magnetic field strengths and magnetic field directions at different orientations of the substrate (1); S2, the plastic box (9) moves downward, and when the experimental device container in a certain direction does not need a magnetic field, the shielding plate (12) in a certain direction moves downward to shield the magnetic field; S3, placing the experimental device to be heated inside the heat-conducting box (28), transferring the heat generated by the coil (2) and the variable resistor (5) inside the plastic box (9) to the heat-conducting box (28) through the heat-conducting silicone sheet (26) and the heat-conducting silicone soft rod (25), and the heat-conducting box (28) heats the internal experimental device through contact; S4. The fan (31) blows the hot air inside the plastic box (9) toward the inside of the hose (30), and then the hot air enters the inside of the heat-conducting box (28) to accelerate the heating of the experimental device.

9. The method for using the variable magnetic field device according to claim 8, characterized in that: The S1 also includes the following steps: S11, when the experimental device is placed in front of the base plate (1), the second plate (38) moves forward and the experimental device is placed above the second plate (38); The S3 also includes the following steps: S31, when the temperature inside the plastic box (9) is higher than a set value, the plastic box (9) moves upward to accelerate the temperature loss inside the plastic box (9); S32: When the temperature inside the heat-conducting box (28) is higher than the set value, the baffle (34) moves upward, and the heat inside the heat-conducting box (28) is dissipated through the heat dissipation holes (29).

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