Coated negative magnetic device

Abstract

A coated negative magnetic device comprises a coating body and a plurality of first magnetic elements. The wrapping body is made of a flexible material and is provided with an S-pole corresponding surface and an N-pole corresponding surface. The first magnetic elements are wrapped in the wrapping body, each first magnetic element is provided with a first S-pole surface and a first N-pole surface, the first S-pole surfaces are located on the same side of the S-pole corresponding face, and the first N-pole surfaces are located on the same side of the N-pole corresponding face. Therefore, the corresponding surface of the S pole is attached to the skin of the human body, especially the affected part, so that the negative magnetic effect of the first magnetic element provides the effects of reduction, alkalization, relaxation, calming, compression resistance and the like for the affected part.

Description

Technical Field

[0001] This utility model relates to a wrap-around negative magnetic device, and more particularly to a negative magnetic device that can be attached to a part of the human body, which brings positive benefits to the human body through a magnetic field. Background Technology

[0002] American biophysicist Dr. Albert Roy Davis discovered that cosmic magnetic poles have two distinct effects on living organisms. The positive magnetic field effect is positively charged and has effects such as oxidation, acidification, activation, excitation, and increased stress, while the negative magnetic field effect is negatively charged and has effects such as reduction, alkalization, relaxation, calming, and stress resistance.

[0003] According to Biot-Savart's law, the biomagnetic field of the human body can only maintain the normal physiology of tissues and organs when it adapts to the large magnetic field of the universe; otherwise, abnormal reactions or illness will occur. Whenever a part of the body suffers different kinds of trauma, the electric and magnetic fields of that part remain positively polarized. Through the mechanisms of meridians and the nervous system, the body concentrates its negative magnetic energy to reach the affected area for healing. Because oxygen cannot be obtained in an acidic environment, the healing process is most effective in an alkaline environment.

[0004] Using magnets for health and wellness involves placing them as close to the human body as possible. However, the human body is not a flat surface; different parts have different curves, and these curves vary from person to person. Therefore, designing a negative magnetic device that can fit magnets close to the curves of each person's body is a worthwhile research topic. Utility Model Content

[0005] This invention provides a wrap-around negative magnetic device that combines a magnet with a flexible material wrap-around structure. Because the flexible material has good elasticity and softness, its wrap-around structure can easily fit tightly to the skin surface of various parts of the body, making it suitable for various parts of the human body, so that the magnet fits close to the curves of each person's body.

[0006] This utility model discloses a covered negative magnetic device comprising a covering body and a plurality of first magnetic elements. The covering body is made of a flexible material and has an S-pole corresponding surface and an N-pole corresponding surface. The first magnetic elements are covered within the covering body, and each first magnetic element has a first S-pole surface and a first N-pole surface. The first S-pole surfaces are all located on the same side as the S-pole corresponding surface, and the first N-pole surfaces are all located on the same side as the N-pole corresponding surface. By attaching the S-pole corresponding surface to human skin, especially to the affected area, the negative magnetic effect of the first magnetic elements provides restorative, alkalizing, relaxing, calming, and anti-pressure effects to the affected area.

[0007] In a preferred embodiment, the flexible material of the covering is silicone, and the first magnetic element is a permanent magnet.

[0008] In a preferred embodiment, there is a longitudinal spacing between every two vertically adjacent magnetic elements and a lateral spacing between every two horizontally adjacent first magnetic elements.

[0009] In a preferred embodiment, the first S-pole surface and the corresponding S-pole surface each have an effective magnetic attraction gap of S-pole, which is no greater than 10 mm (including 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm). The first N-pole surface and the corresponding N-pole surface each have an effective magnetic attraction gap of N-pole, which is no greater than 10 mm (including 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm).

[0010] In a preferred embodiment, the cover has at least one slot that does not penetrate the cover. The slot is used to fix a vibration device, which includes a vibration motor and a power source. The vibration motor is electrically connected to the power source and can be inserted into the slot.

[0011] In a preferred embodiment, the cover has at least one insertion hole that extends through the cover. The insertion hole is used to fix a vibration device or a strap. The vibration device includes a vibration motor and a power supply. The vibration motor is electrically connected to the power supply and can be inserted into the insertion hole.

[0012] In a preferred embodiment, an additional covering body is provided. The additional covering body is made of a flexible material and has an S-pole corresponding surface, an N-pole corresponding surface, and at least one fixing groove. At least one second magnetic element is encapsulated in the additional covering body. The second magnetic element has a second S-pole surface and a second N-pole surface. The second S-pole surfaces are all located on the same side of the S-pole corresponding surface of the additional covering body, and the second N-pole surfaces are all located on the same side of the N-pole corresponding surface of the additional covering body. The fixing groove is used to fix a vibration device. The vibration device includes a vibration motor and a power supply. The vibration motor is electrically connected to the power supply and can be inserted into the fixing groove.

[0013] In a preferred embodiment, the second N-pole surface and the corresponding N-pole surface of the additional covering body each have an effective magnetic attraction gap of the N-pole, which is no greater than 10 mm (including 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, and 10 mm).

[0014] In a preferred embodiment, the flexible material of the additional covering is silicone, and the second magnetic element is a permanent magnet.

[0015] In summary, this utility model, by encapsulating the first magnetic element in the encapsulating body, utilizes the fact that the encapsulating body is made of flexible material. When the encapsulating body is attached to human skin, it can easily and tightly adhere to the skin surface at various locations, making it suitable for all parts of the human body and facilitating the fitting of the first magnetic element to the curves of different parts of the human body. Attached Figure Description

[0016] Figure 1 : A three-dimensional schematic diagram of the first embodiment of this utility model.

[0017] Figure 2 : A cross-sectional schematic diagram of the first embodiment of this utility model.

[0018] Figure 3 : A three-dimensional schematic diagram of the second embodiment of this utility model.

[0019] Figure 4 : A cross-sectional schematic diagram of the second embodiment of this utility model.

[0020] Figure 5 : A three-dimensional schematic diagram of the third embodiment of this utility model.

[0021] Figure 6 : A cross-sectional schematic diagram of the third embodiment of this utility model.

[0022] Figure 7 : Another perspective view of the third embodiment of this utility model.

[0023] Figure 8A : A three-dimensional schematic diagram of the fourth embodiment of this utility model.

[0024] Figure 8B Another perspective view of the fourth embodiment of this utility model.

[0025] Figure 9A : A cross-sectional schematic diagram of the fourth embodiment of this utility model.

[0026] Figure 9B Another cross-sectional view of the fourth embodiment of this utility model.

[0027] Figure 10A : A three-dimensional schematic diagram of another aspect of the fourth embodiment of this utility model.

[0028] Figure 10B : Another perspective schematic diagram of another aspect of the fourth embodiment of this utility model.

[0029] Figure 11: A three-dimensional schematic diagram of the head protector made from the covering body of this utility model.

[0030] Figure 12 : A three-dimensional schematic diagram of the wristband made from the covering body of this utility model.

[0031] Explanation of reference numerals in the attached figures

[0032] 10: Encased negative magnetic device;

[0033] 20: Encapsulation body;

[0034] 21: S-pole corresponding surface;

[0035] 22: N-pole corresponding surface;

[0036] 23: Slot;

[0037] 24: Socket;

[0038] 25: Straps;

[0039] 30: First magnetic element;

[0040] 31: First S-pole surface;

[0041] 32: First N-pole surface;

[0042] 40: Vibration device;

[0043] 41: Vibration motor;

[0044] 42: Power supply;

[0045] 50: Additional coverings;

[0046] 51: S-pole corresponding surface;

[0047] 52: N-pole corresponding surface;

[0048] 53: Fixing slot;

[0049] 60: Second magnetic element;

[0050] 61: Second S-pole surface;

[0051] 62: Second N-pole surface;

[0052] D1: Vertical spacing;

[0053] D2: Horizontal spacing;

[0054] D3: Effective magnetic attraction distance of the S pole;

[0055] D4: Effective magnetic attraction distance of the N pole;

[0056] D5: Effective magnetic attraction distance of the N pole. Detailed Implementation

[0057] Other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the preferred embodiments with reference to the accompanying drawings. To achieve simplicity and clarity, some structures and parts commonly used in the prior art are shown in a simplified schematic manner or omitted without affecting the interpretation of the patent's technical features. Furthermore, the dimensions of the structures and parts in the drawings are drawn to a scale suitable for the reader's viewing, not to the actual prototype scale.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0059] As used herein, the articles “a,” “one,” and “any” refer to the grammar of one or more (i.e., at least one) items unless a specific quantity is specifically indicated. For example, “an element” means one element or more.

[0060] As used herein, the terms “first,” “second,” etc., are used only to distinguish descriptive elements and should not be construed as indicating or implying relative importance, order of use, or order of arrangement.

[0061] As used in this article, the terms "up," "down," "front," "back," "left," "right," "side," "top," and "bottom" used to describe component names or positional relationships are used to help identify the positional relationships between various feature structures. The actual orientation of the feature structure may change depending on the placement angle or the user's position, and therefore should not be used to limit the scope equally covered in this article.

[0062] This utility model provides a wrap-around negative magnetic device 10, which can be attached to the human body. It has various embodiments, and the detailed configuration of the structure of different embodiments is described below through various examples.

[0063] First Embodiment

[0064] Please see Figure 1 , Figure 2 , Figure 1 This is a perspective view of the first embodiment of the present invention. Figure 2 This is a cross-sectional schematic diagram of the first embodiment of the present invention. As shown in the figure, the encapsulated negative magnetic device 10 includes an encapsulating body 20 and a plurality of first magnetic elements 30.

[0065] The encapsulation body 20 is made of silicone and has an S-pole corresponding surface 21 and an N-pole corresponding surface 22, which are located on two opposite sides of the encapsulation body 20. A plurality of first magnetic elements 30 are disposed inside the encapsulation body 20. In one embodiment, the first magnetic elements 30 are evenly arranged within the encapsulation body 20, such that there is a longitudinal spacing D1 between every two longitudinally adjacent first magnetic elements 30, and a lateral spacing D2 between every two laterally adjacent first magnetic elements 30. Because there is a longitudinal spacing D1 or a lateral spacing D2 between every two adjacent first magnetic elements 30, the first magnetic elements 30 can be effectively separated, thereby preventing them from attracting each other. Each first magnetic element 30 is a permanent magnet, and each first magnetic element 30 has a first S-pole surface 31 and a first N-pole surface 32.

[0066] In one embodiment, each first S-pole surface 31 is located on the same side of the corresponding S-pole surface 21. To prevent each first magnetic element 30 from losing its magnetic attraction effect due to the isolation of the covering body 20, each first S-pole surface 31 and the corresponding S-pole surface 21 have an effective magnetic attraction distance D3, and the effective magnetic attraction distance D3 is not greater than 10 mm. In this way, the covering body 20 can cover each first magnetic element 30 and maintain the magnetic attraction effect of each first magnetic element 30. That is, each first N-pole surface 32 is located on the same side of the corresponding N-pole surface 22. To prevent each first magnetic element 30 from losing its magnetic attraction effect due to the isolation of the covering body 20, each first N-pole surface 32 and the corresponding N-pole surface 22 have an effective magnetic attraction distance D4, and the effective magnetic attraction distance D4 is not greater than 10 mm. In this way, the covering body 20 can cover each first magnetic element 30 and maintain the magnetic attraction effect of each first magnetic element 30.

[0067] In use, the S-pole corresponding surface 21 is attached to the skin, especially the affected area, so that the negative magnetic effect of the first magnetic element 30 inside provides the affected area with restorative, alkalizing, relaxing, calming, and anti-stress effects. In other embodiments, the N-pole corresponding surface 22 can also be attached to the skin; this embodiment is not limited to this.

[0068] Second Embodiment

[0069] Please see Figure 3 , Figure 4 , Figure 3 This is a perspective view of the second embodiment of the present invention. Figure 4 This is a cross-sectional schematic diagram of the second embodiment of the present invention. As shown in the figure, the encapsulated negative magnetic device 10 includes an encapsulating body 20, a plurality of first magnetic elements 30, and a vibration device 40.

[0070] This embodiment differs from the first embodiment in that it also includes a vibration device 40, and the covering body 20 has a slot 23. The remaining structure is the same as in the first embodiment, and therefore will not be described in detail. The slot 23 does not penetrate the covering body 20; in other words, the slot 23 has only an opening on the covering body 20. The vibration device 40 includes a vibration motor 41 and a power supply 42. The vibration motor 41 is, for example, but not limited to, an electric motor, a pneumatic motor, or a hydraulic motor. The vibration motor 41 is electrically connected to the power supply 42, which can be an external power supply or a built-in power supply. The built-in power supply is electrically connected to a circuit board, which controls the power supply mechanism of the built-in power supply to adjust the vibration time or intensity of the vibration motor 41 by adjusting the power supply time or current. Thus, in use, the vibration motor 41 can be inserted into the slot 23, and the S-pole corresponding surface 21 can be attached to the skin, especially the affected area. The negative magnetic effect provides the affected area with restorative, alkalizing, relaxing, calming, and anti-pressure effects. When the vibration motor 41 is running, each of the first magnetic elements 30 can be vibrated to amplify the magnetic field function. By vibrating each of the first magnetic elements 30, the magnetic field can be strengthened to penetrate deeper into the skin and muscles.

[0071] Third Embodiment

[0072] Please see Figure 5 , Figure 6 , Figure 5 This is a perspective view of the third embodiment of the present invention. Figure 6 This is a cross-sectional schematic diagram of the third embodiment of the present invention. As shown in the figure, the encapsulated negative magnetic device 10 includes an encapsulating body 20, a plurality of first magnetic elements 30, and a vibration device 40.

[0073] The difference between this embodiment and the first embodiment is that this embodiment also includes a vibration device 40, and the covering body 20 has at least one insertion hole 24. The remaining structure is the same as in the first embodiment, so it will not be described in detail. The insertion hole 24 penetrates the covering body 20; in other words, the insertion hole 24 has at least two openings on the covering body 20. Regarding the vibration device 40, it includes a vibration motor 41 and a power supply 42. The vibration motor 41 is, for example, but not limited to, any of the following: an electric motor, a pneumatic motor, or a hydraulic motor. The vibration motor 41 is electrically connected to the power supply 42, which can be either an external power supply or a built-in power supply. The built-in power supply is electrically connected to a circuit board, which is used to control the power supply mechanism of the built-in power supply, thereby adjusting the vibration time or vibration intensity of the vibration motor 41 by adjusting the power supply time or power supply current. Thus, during use, the vibration motor 41 can be inserted into the socket 24, and the S-pole corresponding surface 21 can be attached to the human skin, especially the affected area. The negative magnetic effect provides the affected area with restorative, alkalizing, relaxing, calming, and anti-pressure effects. When the vibration motor 41 is running, each of the first magnetic elements 30 can be vibrated to amplify the magnetic field function. By vibrating each of the first magnetic elements 30, the magnetic field can be strengthened to penetrate deeper into the skin and muscles.

[0074] Please see Figure 7 , Figure 7 This is a three-dimensional schematic diagram of another aspect of the third embodiment of the present invention. It is worth noting that the insertion hole 24 can also be fitted with a strap 25 to secure the covering 20 to the human body. More specifically, one end of the strap 25 can pass through the insertion hole 24, and the strap 25 can be bundled or wrapped around the affected area of ​​the body, and secured by binding, adhesive, buckling, or other methods. To achieve the fixation of the strap 25, a fixing structure is provided on the strap 25, such as, but not limited to, a buckle or Velcro.

[0075] Fourth embodiment

[0076] Please see Figure 8A , Figure 9A , Figure 8A This is a perspective view of the fourth embodiment of the present invention. Figure 9A This is a cross-sectional schematic diagram of the fourth embodiment of the present invention. As shown in the figure, the encapsulated negative magnetic device 10 includes an encapsulating body 20, a plurality of first magnetic elements 30, a vibration device 40, an additional encapsulating body 50, and at least one second magnetic element 60.

[0077] The difference between this embodiment and the first embodiment is that this embodiment also includes a vibration device 40, an additional covering body 50 and a second magnetic element 60. The covering body 20 and the plurality of first magnetic elements 30 in this embodiment are the same as those in the first embodiment, so they will not be described in detail.

[0078] The vibration device 40 includes a vibration motor 41 and a power supply 42. The vibration motor 41 is, for example, but not limited to, any kind of electric motor, pneumatic motor, or hydraulic motor. The vibration motor 41 is electrically connected to the power supply 42, which can be either an external power supply or a built-in power supply. The built-in power supply is electrically connected to a circuit board, which is used to control the power supply mechanism of the built-in power supply and to adjust the vibration time or vibration intensity of the vibration motor 41 by adjusting the power supply time or power supply current.

[0079] The additional cover 50 is made of silicone and has an S-pole corresponding surface 51, an N-pole corresponding surface 52, and a fixing groove 53. The S-pole corresponding surface 51 and the N-pole corresponding surface 52 are located on opposite sides of the additional cover 50. The fixing groove 53 does not penetrate the additional cover 50; in other words, the fixing groove 53 has only one opening on the additional cover 50. In other embodiments, the fixing groove 53 may also penetrate the additional cover 50; in other words, the fixing groove 53 has at least two openings on the additional cover 50 (e.g., ...). Figure 8B , Figure 9B The additional covering 50 contains a second magnetic element 60, which is a permanent magnet. The second magnetic element 60 has a second S pole surface 61 and a second N pole surface 62.

[0080] In one embodiment, each second S pole surface 61 is located on the same side of the S pole corresponding surface 51, that is, each second N pole surface 62 is located on the same side of the N pole corresponding surface 52. In order to prevent each second magnetic element 60 from losing its magnetic attraction effect due to the isolation of the additional covering body 50, each second N pole surface 62 and the N pole corresponding surface 52 have an effective magnetic attraction distance D5 between them, and the effective magnetic attraction distance D5 is not greater than 10mm. In this way, the additional covering body 50 can cover each second magnetic element 60 and maintain the magnetic attraction effect of each second magnetic element 60.

[0081] In use, the vibration motor 41 can be inserted into the fixing slot 53, and the S-pole corresponding surface 51 of the additional cover 50 is attached to the N-pole corresponding surface 22 of the cover 20, so that the second magnetic element 60 can be attracted to one of the first magnetic elements 30. Then, the S-pole corresponding surface 21 of the cover 20 is attached to the human skin, especially the affected area. The negative magnetic effect provides the affected area with restorative, alkalizing, relaxing, calming, and anti-pressure effects. When the vibration motor 41 is running, the second magnetic element 60 and each of the first magnetic elements 30 can be vibrated to amplify the magnetic field function. By vibrating each of the first magnetic elements 30, the magnetic field can be strengthened to penetrate deeper into the skin and muscles.

[0082] Please see Figure 10A , Figure 10AThis is a three-dimensional schematic diagram of another aspect of the fourth embodiment of the present invention. It is worth noting that two second magnetic elements 60 can be disposed inside the additional covering body 50. When the S-pole corresponding surface 51 of the additional covering body 50 is attached to the N-pole corresponding surface 22 of the covering body 20, each second magnetic element 60 can be attracted to two of the first magnetic elements 30. In other embodiments, there can be two or more second magnetic elements 60. As long as the second magnetic elements 60 are attracted to the first magnetic elements 30 to achieve the attachment of the additional covering body 50 to the covering body 20, it falls within the scope of this embodiment. It is worth noting that in this embodiment, the fixing groove 53 does not penetrate the additional covering body 50; in other words, the fixing groove 53 has only one opening on the additional covering body 50. In other embodiments, the fixing groove 53 can also penetrate the additional covering body 50; in other words, the fixing groove 53 has at least two openings on the additional covering body 50 (e.g., Figure 10B ).

[0083] The encapsulated negative magnetic device 10 of this utility model can be made into various protective gear or cushions, such as seat cushions, because the encapsulating body 20 can be molded into various shapes and structures. Figure 1 As shown), headgear (such as) Figure 11 As shown), wristband (such as) Figure 12 (As shown), eye protection / eye mask, knee pads, elbow pads, etc.

[0084] The encapsulated negative magnetic device 10 provided by this utility model has the following advantages compared with other existing technologies:

[0085] 1. By encapsulating the first magnetic element 30 within the cover body 20, which is made of silicone, a flexible material, the cover body 20 can easily and tightly adhere to various parts of the skin when applied, making it suitable for all parts of the body. Furthermore, the cover body 20 can be manufactured in various shapes and structures, and can be ergonomically designed into various protective gear or pads. This results in a diverse range of products.

[0086] 2. This utility model can also be used in conjunction with a vibration device 40 to enhance the negative magnetic field of the first magnetic element 30, allowing it to penetrate deeper into the skin and muscles. Since the vibration motor 41 can be completely enclosed by the cover 20 or an additional cover 50, it can effectively counteract the noise generated during vibration, achieving a noise reduction effect.

[0087] 3. Since this invention does not generate an electromagnetic field by driving a magnet with a power source, it does not produce electromagnetic waves and therefore will not have any adverse effects on the human body.

[0088] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Details disclosed in some embodiments of this utility model are necessary for clarity in the specification, and those skilled in the art should understand that these details are not essential and should not limit the utility model. Any equivalent changes or modifications made by those skilled in the art, after understanding the foregoing technical features and embodiments of this utility model, without departing from the spirit and scope of this utility model, are still within the scope of this utility model, and the patent protection scope of this utility model shall be determined by the claims appended to this specification.

Claims

1. A cladded negative magnetic device, characterized in that, The application relates to a magnetic body, comprising: a cover body made of flexible material, having an S-pole corresponding surface and an N-pole corresponding surface; a plurality of first magnetic elements covered in the cover body, each of the first magnetic elements having a first S-pole surface and a first N-pole surface, the first S-pole surfaces being located on the same side of the S-pole corresponding surface, and the first N-pole surfaces being located on the same side of the N-pole corresponding surface. The flexible material of the cover body is silica gel, and the first magnetic elements are permanent magnets.

2. The coated negative magnetic device of claim 1, wherein, Each of the magnetic elements has a longitudinal spacing with the adjacent magnetic element in the longitudinal direction, and each of the first magnetic elements has a transverse spacing with the adjacent first magnetic element in the transverse direction.

3. The coated negative magnetic device of claim 1, wherein, The first S-pole surfaces and the S-pole corresponding surface have an S-pole effective magnetic attraction spacing, and the first N-pole surfaces and the N-pole corresponding surface have an N-pole effective magnetic attraction spacing, wherein the S-pole effective magnetic attraction spacing and the N-pole effective magnetic attraction spacing are not greater than 10 mm.

4. The coated negative magnetic device of claim 1, wherein, The cover body has at least one insertion slot which does not penetrate the cover body, and the insertion slot is used for fixing a vibration device, the vibration device comprising a vibration motor and a power supply, the vibration motor being electrically connected with the power supply, and the vibration motor being inserted into the insertion slot.

5. The coated negative magnetic device of any one of claims 1 to 4, wherein, The cover body has at least one insertion hole which penetrates the cover body, and the insertion hole is used for fixing a vibration device or a bandage, the vibration device comprising a vibration motor and a power supply, the vibration motor being electrically connected with the power supply, and the vibration motor being inserted into the insertion hole.

6. The coated negative magnetic device of any one of claims 1 to 4, wherein, The application further relates to an additional cover body made of flexible material, the additional cover body having an S-pole corresponding surface, an N-pole corresponding surface and at least one fixing slot, the additional cover body covering at least one second magnetic element, the second magnetic element having a second S-pole surface and a second N-pole surface, the second S-pole surfaces being located on the same side of the S-pole corresponding surface of the additional cover body, and the second N-pole surfaces being located on the same side of the N-pole corresponding surface of the additional cover body, the fixing slot being used for fixing a vibration device, the vibration device comprising a vibration motor and a power supply, the vibration motor being electrically connected with the power supply, and the vibration motor being inserted into the fixing slot.

7. The coated negative magnetic device of any one of claims 1 to 4, wherein, The second N-pole surfaces and the N-pole corresponding surface of the additional cover body have an N-pole effective magnetic attraction spacing, and the N-pole effective magnetic attraction spacing is not greater than 10 mm.

8. The flux guid of claim 7, wherein the flux guide is a flux guide of the type shown in Fig.

1. The flexible material of the additional cover body is silica gel, and the second magnetic elements are permanent magnets.

9. The flux guid of claim 7, wherein the flux guide is a flux guide of claim 1. ​

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