15mt Helmholtz coil device

Abstract

A 15mt Helmholtz coil device belongs to the technical field of test equipment and comprises a magnetic field tester, a coil, a protective plate, an outer shell, a frame and a sliding mechanism, the magnetic field tester, the coil, the protective plate, the outer shell, the frame and the sliding mechanism are mounted together, the coil comprises a framework and a wire, the wire is provided with a silica gel skin protective layer, and the sliding mechanism comprises a guide rail and a moving table. According to the utility model, all the devices are installed on the movable frame body, and the frame body is used as a carrying platform of a coil and the like, so that the whole device can be conveniently moved to a required place to carry out verification test on the devices, the rectangular coil is wound by the leather silica gel cable, and the iron shell and the protection plate are respectively arranged at the inner side end and the outer side end of the coil; the protection plate can well protect the coil, the rectangular coil improves the space utilization rate, the uniformity of a magnetic field generated by the coil is improved through the rectangular coil and the iron outer shell, and it is guaranteed that normal testing and verification work of equipment is smoothly carried out. In conclusion, the device has a good application prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the coil equipment field especially relates to a 15mt helmholtz coil device. BACKGROUND

[0002] Helmholtz coil as a kind of device capable of generating uniform magnetic field, has wide application in numerous scientific research, industrial detection etc., such as material magnetic property test, electronic component performance verification etc.The existing helmholtz coil general structure includes annular magnetic field coil and carrier, coil is fixedly installed on carrier, when experiment, the equipment needing test is placed into coil to test, check etc.

[0003] Although, the existing helmholtz coil meets the use needs to some extent, but is also still there are some technical shortcomings as follows by the structure limit.The first: coil is wound by enameled wire on framework, in practical application, the outer layer of enameled wire is collided with the equipment of test and check due to various reasons, easy to cause the damage of enameled wire outer layer, even causes helmholtz coil overall failure, cannot generate magnetic field.The second: coil is fixed on framework, it is not full sealing winding on framework, that is to say, coil acts on the magnetic field of equipment of test and check is not uniform, more or less will cause adverse effect to the test and check of equipment.The third: since being fixedly installed in working area, cannot move, it is inconvenient to move between different test sites, limits the flexibility of use scene.The fourth: coil is cylindrical structure, in limited space, space utilization is not high, and in order to test the convenience, the existing helmholtz coil is generally arranged in rectangular test table, there is unnecessary magnetic field edge effect, similarly, due to uneven magnetic field distribution, will cause adverse effect to the test and check of equipment. UTILITY MODEL CONTENTS

[0004] In order to overcome the disadvantages of the existing 15mt helmholtz coil due to the structure limit as described in the background art, the utility model provides a movable frame body as the coil carrier, which can be conveniently moved to the required place for device verification test, a rectangular coil is wound by skin silicone cable, and the coil has an iron shell and a protection plate on the inner and outer sides, which can provide good protection for the coil and improve the uniformity of the magnetic field, ensuring the smooth progress of the normal test and verification of the device.

[0005] The technical solution adopted by the utility model to solve the technical problems is:

[0006] A 15mt Helmholtz coil device, including a magnetic field tester, a coil, a protection plate, an outer shell, a frame, a sliding mechanism, the coil includes a skeleton and a wire, the wire has a silica gel sheath protective layer, the wire is wound on the outer side of the skeleton, the outer shell is a rectangular iron structure, the coil skeleton is installed on the inner side of the outer shell, one side of the outer shell is an open structure, the lower end of the outer shell is installed on the upper end of the frame, wheels are installed on the lower end of the frame, the frame is made of aluminum alloy, the sliding mechanism includes a guide rail and a moving table, the guide rail is at least two, the two guide rails are respectively installed on the lower end of the outer shell, the moving table is provided with rolling wheels on the lower end, and the lower end of the rolling wheels is located on the inner side of the two guide rails, the protection plate is installed on the inner side of the wire, the magnetic field tester is fixedly installed on the outer side of the outer shell, and the coil is electrically connected with the power supply at both ends.

[0007] Further, the protection plate covers the inner side of the coil.

[0008] Further, the frame and the sliding mechanism are made of aluminum non-magnetic material.

[0009] Further, the protection plate is an acrylic plate, and the width of the front and rear sides of the protection plate is greater than the width of the moving table.

[0010] Further, the width of the front and rear sides of the protection plate, the moving table and the height between the upper side of the protection plate are greater than the width and height of the test and calibration equipment.

[0011] Further, the inner side surface of the protection plate is provided with a plurality of heat dissipation holes.

[0012] Compared with the prior art, the device has the advantages that: all the equipment is installed on the movable frame, the frame serves as a carrier for the coil, so that the overall device can be conveniently moved to the place where the equipment needs to be calibrated and tested, the silica gel cable is used to wind the rectangular coil, the iron shell and the protection plate are arranged on the inner and outer sides of the coil respectively, the protection plate can protect the coil, the rectangular coil improves the space utilization, and the iron shell improves the uniformity of the magnetic field generated by the coil, so that the normal test and calibration work of the equipment can be smoothly carried out. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structure schematic diagram of the utility model.

[0014] Figure 2 It is the coil structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] Figure 1 , 2As shown, a 15mt Helmholtz coil device includes a magnetic field tester 1 (mature technology, not described herein), a coil 2, a protection plate 3, an outer shell 4, a frame 5, and a sliding mechanism. The coil 2 includes a rectangular insulating framework 21 and a wire 22. The wire 22 has a silica gel protective layer and is wound around the outside of the framework 21. The outer shell 4 is a rectangular iron structure, and the outside of the coil framework 21 is fixedly installed on the inside of the outer shell 4. The left end of the outer shell 4 is an open structure, and the lower end of the outer shell 4 is fixedly installed on the upper end of the frame 5. The lower end of the frame 5 is fixedly installed with universal wheels 51 with brake function around the periphery. The frame 5 is made of aluminum alloy. The sliding mechanism includes guide rails 61 and a moving table 62. The guide rails 61 are fixedly installed on the front and rear sides of the upper end of the frame 5 located inside the lower end of the outer shell 4. The moving table 62 is fixedly installed with rolling wheels 63 around the periphery of the lower end. The lower ends of the four rolling wheels 63 are located inside the inside ends of the two guide rails 61. The protection plate 3 is installed on the inside end of the wire 22. The magnetic field tester 1 is fixedly installed on the front right outside end of the outer shell 4. The coil 2 and the power supply (DC 36V power supply) are connected by wires.

[0016] Figure 1 、 2 As shown, the protection plate 3 fully covers the inside end of the coil 2. The frame 5 and the sliding mechanism are made of aluminum non-magnetic material. The protection plate 3 is an insulating acrylic plate, and the width of the inside front and rear ends of the protection plate 3 is greater than the width of the moving table 62. The width of the inside front and rear ends of the protection plate 62, the moving table 62, and the height between the inside upper side of the protection plate 3 are greater than the width and height of the test and calibration equipment. The inside surface of the protection plate has a plurality of heat dissipation holes 31 at intervals.

[0017] Figure 1 、 2As shown, all the equipment of the novel device is installed on the movable frame 5, the frame 5 (aluminum profile has the characteristics of light weight and high strength) as the carrier of the coil 2 and the like, so that, due to the universal wheels 51 at the lower end of the frame 5, the overall device can be conveniently moved to the place where the equipment needs to be checked and tested. When testing, the staff pulls the movable platform 62 along the sliding rail 63 to the left side, then places the equipment to be tested on the movable platform 62, and pushes the movable platform 62 along the sliding rail 63 to the right side, after the equipment is located in the coil, the staff can check and test the equipment by opening the power switch of the coil (the size of the magnetic field in the shell can be intuitively understood by observing the data of the magnetic field tester). In the novel device, since the rectangular coil 2 is wound by the silicone cable with skin, and the iron shell 4 and the insulating protection plate 3 are arranged at the inner and outer ends of the coil 2 respectively, the protection plate 3 can well protect the coil, the rectangular coil 2 and the shell have similar shapes, improve the space utilization, and improve the uniformity of the magnetic field generated by the coil together with the iron shell 4 (the iron shell 4 can uniformly distribute the magnetic field after being magnetized, and then uniformly act on the equipment), thereby ensuring the smooth progress of the normal testing and checking work of the equipment.

[0018] The basic principle and main features of the novel device and the advantages of the novel device are shown and described above, and for those skilled in the art, it is obvious that the novel device is limited to the details of the above-described exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the novel device. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the novel device is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the novel device.

[0019] In addition, it should be understood that, although the present specification is described in terms of embodiments, the embodiments do not contain only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A 15mt Helmholtz coil apparatus comprising a magnetic field tester, a coil, a protection plate, an outer housing, a frame, a sliding mechanism; characterized in that, The coil comprises a framework and a wire, the wire has a silica gel protective layer, the wire is wound on the outside end of the framework, the outer shell is a rectangular iron structure, the coil framework is installed on the inside end of the outer shell; one side end of the outer shell is an open structure, the lower end of the outer shell is installed on the upper end of the frame, the lower end of the frame is respectively installed with wheels, the frame is made of aluminum alloy; the sliding mechanism comprises guide rails and a moving table, the guide rails are at least two, the two guide rails are respectively installed on the lower end of the frame, the lower end of the moving table is installed with rolling wheels, and the lower end of the rolling wheels is located on the inside end of the two guide rails; the protective plate is installed on the inside end of the wire, the magnetic field tester is fixedly installed on the outside end of the outer shell, and the two ends of the coil and the two poles of the power supply are respectively electrically connected.

2. A 15 mt Helmholtz coil apparatus as claimed in claim 1, characterized in that, The protective plate fully covers the inside end of the coil.

3. A 15 mt Helmholtz coil apparatus as claimed in claim 1, wherein, The frame and the sliding mechanism are made of aluminum non-magnetic material.

4. A 15 mt Helmholtz coil apparatus as claimed in claim 1, wherein, The protective plate is an acrylic plate, and the width of the front and rear ends of the protective plate is greater than the width of the moving table.

5. A 15 mt Helmholtz coil apparatus as claimed in claim 1, wherein, The width of the front and rear ends of the protective plate, the moving table and the height between the upper side of the protective plate are greater than the width and height of the test and calibration equipment respectively.

6. A 15 mt Helmholtz coil apparatus as claimed in claim 1, wherein, The inside surface of the protective plate has a plurality of heat dissipation holes at intervals.

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