Magnetic ring locking device, shielding mechanism and magnetic ring assembling method

Abstract

The invention discloses a magnetic ring locking device, a shielding mechanism and a magnetic ring assembling method.The magnetic ring locking device comprises a first shell, a second shell and a wire lug, the first shell is provided with a first arc-shaped groove, the two ends of the first shell are each provided with a first threading opening, and the first threading openings communicate with the first arc-shaped groove; a second arc-shaped groove is formed in the second shell, second threading openings are formed in the two ends of the second shell, and the second threading openings communicate with the second arc-shaped groove; one side of the first shell is hinged to one side of the second shell, and the other side of the first shell is used for abutting against the other side of the second shell; the wire lug is provided with a connecting through hole, and the wire lug is fixedly connected with one end of the first shell or one end of the second shell. According to the magnetic ring locking device, the magnetic ring can be simply and conveniently arranged on the wire harness in a sleeving manner, the end of the wire harness does not need to be disassembled, and the fixation of the magnetic ring and the wire harness is easy to disassemble.

Description

Technical Field

[0001] This invention relates to the field of circuit shielding, and in particular to a magnetic ring locking device, a shielding mechanism, and a magnetic ring assembly method. Background Technology

[0002] To suppress electromagnetic interference (EMI) generated when wires are energized or to prevent external interference from entering the equipment, ferrite cores, such as magnetic rings, are typically fitted onto the wire harness. Traditional ferrite cores are complete closed loops, which have significant drawbacks: during assembly, the ends of the wire harness must be disassembled before the ferrite core can be passed through the end of the harness and slid to the designated position. This process is cumbersome and time-consuming, extremely inconvenient for upgrading or repairing already assembled equipment, and may even be impossible due to connectors being unable to pass through. Furthermore, the ferrite core is usually secured to the wire harness using tape or heat-shrink tubing, which is unstable and difficult to repeatedly disassemble. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a magnetic ring locking device that can easily and conveniently fit a magnetic ring onto a wire harness without disassembling the wire harness end, and the fixing of the magnetic ring and the wire harness is easy to disassemble.

[0004] The present invention also proposes a shielding mechanism including the above-mentioned magnetic ring locking device.

[0005] The present invention also proposes a method for assembling a magnetic ring using the above-described shielding mechanism.

[0006] According to a first aspect of the present invention, a magnetic ring locking device includes: a first housing having a first arc-shaped groove, and both ends of the first housing having first threading openings that communicate with the first arc-shaped groove; a second housing having a second arc-shaped groove, and both ends of the second housing having second threading openings that communicate with the second arc-shaped groove; one side of the first housing and one side of the second housing being hinged together, and the other side of the first housing being used to abut against the other side of the second housing, thereby closing the magnetic ring locking device; after the magnetic ring locking device is closed, the first threading opening and the second threading opening located at the same end are connected; and a wire lug having a connecting through hole, the wire lug being fixedly connected to one end of the first housing or one end of the second housing.

[0007] According to a first aspect of the present invention, a magnetic ring locking device has at least the following technical advantages: A first arc-shaped groove is provided to accommodate a first half-magnetic ring, and a second arc-shaped groove is provided to accommodate a second half-magnetic ring. After the magnetic ring locking device is closed and installed onto the wire harness, the first and second half-magnetic rings are joined together to form a complete magnetic ring. The magnetic ring is sleeved on the wire harness, thereby providing electromagnetic shielding, suppressing electromagnetic interference generated when the wire harness is energized, and preventing external interference from intruding into the wire harness and the equipment connected to the wire harness. Then, a cable tie can be passed through the connecting through-hole to bind and connect the wire lug and the wire harness near the wire opening, thereby fixing the magnetic ring locking device and the magnetic ring onto the wire harness. Using this method to fix the magnetic ring onto the wire harness does not require disassembling the wire harness end, and when it is necessary to remove the magnetic ring from the wire harness, only the cable tie needs to be cut to open the closed magnetic ring locking device, thus removing the magnetic ring from the wire harness. Therefore, the installation and removal of the magnetic ring are very simple and convenient.

[0008] According to some embodiments of the present invention, a first limiting protrusion is provided at the top of both ends of the first arc-shaped groove, and a second limiting protrusion is provided at the top of both ends of the second arc-shaped groove.

[0009] According to some embodiments of the present invention, the positions of the first limiting protrusion at the top of both ends of the first arc-shaped groove correspond to the positions of the second limiting protrusion at the top of both ends of the second arc-shaped groove; after the magnetic ring locking device is closed, the first limiting protrusion located at the same end abuts against the second limiting protrusion.

[0010] According to some embodiments of the present invention, at least three first support blocks are provided in the first arc-shaped groove, and at least three second support blocks are provided in the second arc-shaped groove.

[0011] According to some embodiments of the present invention, a first opening is provided on the side of the first housing, and the first opening communicates with the first arc-shaped groove.

[0012] According to some embodiments of the present invention, the side of the first housing is provided with a first opening, the first opening communicating with the first arcuate groove, and the side of the second housing is provided with a second opening, the second opening communicating with the second arcuate groove.

[0013] According to some embodiments of the present invention, the magnetic ring locking device further includes a snap-fit ​​connection structure, the snap-fit ​​connection structure including a male snap and a female snap groove, one of the male snap and the female snap groove being disposed on the other side of the first housing, and the other being disposed on the other side of the second housing.

[0014] According to some embodiments of the present invention, both the first housing and the second housing are made of ABS plastic.

[0015] According to a second aspect of the present invention, a shielding mechanism includes: the aforementioned magnetic ring locking device; a first half-magnetic ring located in the first arc-shaped groove; a second half-magnetic ring located in the second arc-shaped groove; and a cable tie for passing through the connecting through hole.

[0016] According to a shielding mechanism of a second aspect of the present invention, at least the following technical effects are achieved: a magnetic ring locking device is provided, which has a first arc-shaped groove for accommodating a first half-magnetic ring and a second arc-shaped groove for accommodating a second half-magnetic ring. After the magnetic ring locking device is closed and installed on the wire harness, the first half-magnetic ring and the second half-magnetic ring are joined together to form a complete magnetic ring. The magnetic ring is sleeved on the wire harness, thereby playing an electromagnetic shielding role, suppressing electromagnetic interference generated when the wire harness is energized, and preventing external interference from entering the wire harness and the equipment connected to the wire harness. Then, a cable tie can be used to pass through the connecting through hole to bind and connect the wire lug and the wire harness near the wire opening, thereby fixing the magnetic ring locking device and the magnetic ring on the wire harness. Using this method to fix the magnetic ring on the wire harness does not require disassembling the wire harness end, and when it is necessary to remove the magnetic ring from the wire harness, it is only necessary to cut the cable tie and open the closed magnetic ring locking device to remove the magnetic ring from the wire harness. Therefore, the installation and removal of the magnetic ring are very simple and convenient.

[0017] According to a third aspect of the present invention, a magnetic ring assembly method using the aforementioned shielding mechanism includes the following steps: The first half-magnetic ring is inserted into the first arc-shaped groove, and the second half-magnetic ring is inserted into the second arc-shaped groove. Align the opened magnetic ring locking device with the wire harness so that the wire harness is located in the first wire threading opening and the first arc-shaped groove, and close the magnetic ring locking device. After passing through the connection hole, the cable tie is tied to the wire harness.

[0018] According to a third aspect embodiment of the present invention, a magnetic ring assembly method has at least the following technical effects: In the magnetic ring assembly method of the present invention, a first half-magnetic ring is first installed into a first arc-shaped groove, and a second half-magnetic ring is installed into a second arc-shaped groove. Then, the opened magnetic ring locking device is aligned with the wire harness, so that the wire harness is located in the first wire-passing opening and the first arc-shaped groove. The magnetic ring locking device is then closed, and the first half-magnetic ring and the second half-magnetic ring are joined together to form a complete magnetic ring. The magnetic ring is sleeved on the wire harness, thereby providing electromagnetic shielding and suppressing electromagnetic interference generated when the wire harness is energized. To prevent electromagnetic interference and external interference from entering the wiring harness and its connection, cable ties can be used to pass through the connection holes and bind the wire lugs and the wire harness near the wire opening. This allows the magnetic ring locking device and the magnetic ring to be fixed to the wiring harness. Using this method, the magnetic ring can be fixed to the wiring harness without disassembling the wiring harness end. When it is necessary to remove the magnetic ring from the wiring harness, simply cut the cable tie and open the closed magnetic ring locking device to remove the magnetic ring from the wiring harness. Therefore, the assembly and disassembly of the magnetic ring are very simple and convenient.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective structural schematic diagram of the magnetic ring locking device according to the first embodiment of the present invention; Figure 2 This is a perspective structural schematic diagram of the magnetic ring locking device according to the second embodiment of the present invention; Figure 3 This is a front view of the first half-magnetic ring according to an embodiment of the present invention; Figure 4 for Figure 3 The diagram shows a bottom-view perspective view of the first half-magnetic ring.

[0021] Figure label: First housing 100, first arc-shaped groove 110, first threading opening 120, first limiting protrusion 130, first supporting block 140, first opening 150; The second housing 200, the second arc-shaped groove 210, the second threading opening 220, the second limiting protrusion 230, the second supporting block 240, and the second opening 250; Wire lug 300, connecting through hole 310; Male snap fastener 410, female snap fastener groove 420; First half magnetic ring 500, first clearance groove 510. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that the directional descriptions, such as "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "point," "inner," "outer," "axial," "radial," "circumferential," and "around," are based on the directional or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, sidewalls refer to the left side wall and / or the right side wall.

[0024] In the description of this invention, "a plurality of" means two or more; "greater than," "less than," "exceeding," etc., are understood to exclude the number itself; and "above," "below," "within," etc., are understood to include the number itself. Where "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0025] In the description of this invention, it should be understood that "A is set on B" or "A is set on B" describes the connection or positional relationship between A and B, and does not mean that A is necessarily above B.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, movable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication of two components. "Bolt connection" and "screw connection" can be used interchangeably. Those skilled in the art can understand the specific meaning of the above terms in this invention in conjunction with the specific circumstances. It should be understood that multiple similar features in this invention are distinguished only by different prefixes. Therefore, in this invention, the feature name without distinguishing prefixes (or the feature name with partial prefixes) is used to represent the synthesis of this type of similar features, for example, "shell" is used to represent the first shell 100 and the second shell 200.

[0027] Reference Figure 1 and Figure 3 According to an embodiment of the present invention, a magnetic ring locking device includes a first housing 100, a second housing 200, and a wire lug 300. The first housing 100 is provided with a first arc-shaped groove 110, and both ends of the first housing 100 are provided with first wire-passing openings 120, which are connected to the first arc-shaped groove 110. The second housing 200 is provided with a second arc-shaped groove 210, and both ends of the second housing 200 are provided with second wire-passing openings 220, which are connected to the second arc-shaped groove 210. One side of the first housing 100 and one side of the second housing 200 are hinged together, and the other side of the first housing 100 is used to abut against the other side of the second housing 200, thereby closing the magnetic ring locking device. After the magnetic ring locking device is closed, the first wire-passing opening 120 and the second wire-passing opening 220 located at the same end are connected. The wire lug 300 is provided with a connecting through hole 310, and the wire lug 300 is fixedly connected to one end of the first housing 100 or one end of the second housing 200.

[0028] The shape of the shell is not limited; it can be a semi-cylindrical shape, a cuboid shape, or other single shapes, or a composite shape composed of multiple single shapes. In this embodiment, the first shell 100 and the second shell 200 are both approximately semi-cylindrical in shape and size. After docking and assembly (one side of the first shell 100 and one side of the second shell 200 are hinged, and the first shell 100 and the second shell 200 rotate relative to each other, so that the other side of the first shell 100 and the other side of the second shell 200 abut, thus closing the magnetic ring locking device), the first shell 100 and the second shell 200 generally constitute a hollow cylinder. Both ends of the cylinder are provided with openings (first thread) connecting to the internal cavity (first arc-shaped groove 110, second arc-shaped groove 210). The first housing 100 and the second housing 200 are semi-cylindrical. The first housing 100 and the second housing 200 are semi-cylindrical. The first housing 100 matches the internal arc-shaped groove, reducing the material used in the housing. The housing is generally thin-walled. The combined cylinder occupies minimal space to achieve its function, minimizing interference with other electronic components and wire arrangement. Furthermore, the cylinder is free of sharp corners, preventing injury to other components and personnel. It should be understood that in the accompanying drawings of this embodiment, the two ends of a component are generally the front and rear ends, and the two sides are generally the left and right sides. One side of the first housing 100 and one side of the second housing 200 are hinged. Specifically, this can be a thin-walled hinge structure or a rotating structure with a pivot connection. The hinged connection has a certain positioning and limiting effect, preventing the two housings from moving freely. Furthermore, when the magnetic ring locking device is closed, it facilitates the mutual alignment and positioning of the two housings, making installation easier. The magnetic ring locking device can be fixed by a snap-fit ​​connection structure, by cable ties passing through the first opening 150 and the second opening 250, or by other methods such as screw connections, adhesive bonding, or by using an elastic structure at the hinge to automatically close the magnetic ring locking device.

[0029] The arc-shaped groove, or groove structure with a cross-sectional shape roughly arc-shaped, is used to match the semi-circular outer circumference of the semi-magnetic ring; more specifically, its arc radius is approximately π, that is, it is roughly a semi-circular groove. After the magnetic ring locking device is closed, the opposing (or abutting) surfaces of the first housing 100 and the second housing 200 are their mating surfaces; specifically, in this embodiment, they are the dividing surfaces of the semi-cylindrical housing (divided from a cylinder into a semi-cylindrical shape). The wire-passing opening is generally located at the center of the side of the housing end face near the dividing surface. After the first housing 100 and the second housing 200 are mated and combined to form a cylinder, the first wire-passing opening 120 and the second wire-passing opening 220 located at the same end are connected and combined to form a space for wire harness to pass through; more specifically, in this embodiment, both the first wire-passing opening 120 and the second wire-passing opening 220 are roughly semi-circular openings, and after the magnetic ring locking device is closed, the first wire-passing opening 120 and the second wire-passing opening 220 are roughly combined to form a circular opening. It should be understood that, for ease of description, the connection between the wire harness and the magnetic ring locking device (housing, magnetic ring, shielding mechanism) is sometimes described as the wire harness passing through the magnetic ring locking device (housing, magnetic ring, shielding mechanism). Specifically, it could mean the wire harness passes through these already closed components for connection, or that these components actively clamp the wire harness before closing. The wire-passing opening communicates with the arc-shaped groove, facilitating the wire harness to sequentially pass through the wire-passing opening on one end face, the hollow central portion of the magnetic ring within the arc-shaped groove, and the wire-passing opening on the other end face. The first arc-shaped groove 110 is used to accommodate the first half-magnetic ring 500, and the second arc-shaped groove 210 is used to accommodate the second half-magnetic ring. The first wire-passing openings 120 on both end faces are used to provide space for the wire harness to pass through, and the second wire-passing openings 220 on both end faces are used to provide space for the wire harness to pass through.

[0030] The wire lug 300 is a protruding structure on the outside of the housing used to connect wire harnesses. The wire lug 300 is fixedly connected to the front or rear end of the housing (first housing 100 or second housing 200), specifically, it is generally located near the wire-passing opening on the end face of the housing, facilitating the connection of wire harnesses passing through the opening. Cable ties, also known as cable ties, are straps used to bundle things. They are generally designed with an anti-reverse function, meaning they can only tighten as they are tied. Specifically, one end of the cable tie has a locking ring with anti-reverse teeth inside. The cable tie has multiple connecting protrusions spaced apart and extending along its length. In actual use, after the cable tie is wrapped around the object to be bundled, the other end of the cable tie passes through the locking ring, and the anti-reverse teeth engage the connecting protrusions, causing the cable tie to tighten as it is tied, thus securing the object. In this embodiment, the other end of the cable tie passes through the connecting through-hole 310, wraps around the wire harness, and then passes through the locking ring (a part of the wire ear 300 and the wire harness are both located within the ring formed after the cable tie is wrapped around), thereby connecting the wire harness and the wire ear 300 together. Furthermore, multiple connecting through-holes 310 can be provided, allowing multiple cable ties to be connected, achieving more functions, such as dividing the wire harness into multiple parts and binding and fixing them separately with cable ties, thereby separating the multi-strand wire harness for easy identification of the connection. It should be understood that the cross-sectional shape of the connecting through-hole 310 is not specifically limited, and can be circular, square, or other single shapes, or a composite shape composed of multiple single shapes.

[0031] The magnetic ring locking device of the present invention is provided with a first arc-shaped groove 110 for accommodating a first half magnetic ring 500 and a second arc-shaped groove 210 for accommodating a second half magnetic ring. After the magnetic ring locking device is closed and installed on the wire harness, the first half magnetic ring 500 and the second half magnetic ring are joined together to form a complete magnetic ring. The magnetic ring is sleeved on the wire harness, thereby playing an electromagnetic shielding role, suppressing electromagnetic interference generated when the wire harness is energized, and preventing external interference from entering the wire harness and the equipment connected to the wire harness. Then, a cable tie can be used to pass through the connecting through hole 310 to bind and connect the wire lug 300 and the wire harness near the wire opening, thereby fixing the magnetic ring locking device and the magnetic ring to the wire harness. Using this method to fix the magnetic ring to the wire harness does not require disassembling the wire harness end, and when it is necessary to remove the magnetic ring from the wire harness, it is only necessary to cut the cable tie and open the closed magnetic ring locking device to remove the magnetic ring from the wire harness. Therefore, the installation and removal of the magnetic ring are very simple and convenient.

[0032] Reference Figure 1 and Figure 3 In some embodiments of the present invention, the top of both ends of the first arc-shaped groove 110 is provided with a first limiting protrusion 130, and the top of both ends of the second arc-shaped groove 210 is provided with a second limiting protrusion 230.

[0033] It's important to understand that the two ends of the arc-shaped groove are the front and rear ends, and the top and bottom are, respectively. Specifically, referring to the depth direction of the groove, the opening of the groove (or the part where the groove depth is zero) is roughly the top of the arc-shaped groove, and the bottom of the groove (or the deepest part of the groove) is roughly the bottom. To facilitate the assembly of the semi-magnetic ring and the magnetic ring, the length and diameter of the semi-magnetic ring are smaller than the length and diameter of the arc-shaped groove. A limiting protrusion is provided to limit the semi-magnetic ring after it is inserted into the arc-shaped groove, preventing it from detaching. Positioning it at the top maximizes the space available for the semi-magnetic ring's installation, preventing obstruction. The shape of the limiting protrusion is not limited; its cross-sectional shape can be rectangular, square, semi-circular, etc. It should be understood that both ends of the split surface of the semi-magnetic ring (first semi-magnetic ring 500, second semi-magnetic ring) can be provided with clearance grooves (first clearance groove 510, second clearance groove) to make room for the limiting protrusions (first limiting protrusion 130, second limiting protrusion 230), while other areas on the split surface can normally abut against each other, so that the two semi-magnetic rings can form a roughly complete magnetic ring.

[0034] Reference Figure 1 and Figure 4 In some embodiments of the present invention, the first limiting protrusion 130 is positioned at the top of both ends of the first arc-shaped groove 110 and the second limiting protrusion 230 is positioned at the top of both ends of the second arc-shaped groove 210; after the magnetic ring locking device is closed, the first limiting protrusion 130 located at the same end abuts against the second limiting protrusion 230.

[0035] The limiting protrusions are generally set on the mating surface of the housing. On the one hand, when the magnetic ring locking device is closed, the first limiting protrusion 130 can abut against the second limiting protrusion 230 to prevent the first housing 100 and the second housing 200 from misaligning and getting stuck inside each other (for example, the lower left corner of the first housing 100 getting stuck inside the lower left corner of the second housing 200), or even the misalignment gap pinching the skin of the assembly personnel's fingers, causing personal injury. Especially when the two housings are hinged by a thin-walled hinge structure, the limiting effect of the thin-walled hinge is poor. The first housing 100 and the second housing 200 have a certain amount of forward, backward, left and right movement space between them, and are prone to misalignment during docking. In addition, since the housings are thin-walled structures, they are prone to getting stuck inside each other after misalignment. On the other hand, after the magnetic ring locking device is closed, the first limiting protrusion 130 can abut against the second limiting protrusion 230 to prevent the first housing 100 and the second housing 200 from misaligning and getting stuck inside each other. The first limiting protrusion 130 abuts against the second limiting protrusion 230, thereby increasing the contact area between the first housing 100 and the second housing 200, thus increasing the pressure resistance of the housing and making it less prone to damage. This is especially true for thin-walled housings, where the reinforcement is more significant. When a semi-magnetic ring is installed, one side of the first limiting protrusion 130 abuts against one side of the second limiting protrusion 230, while the other side of the first limiting protrusion 130 abuts against the cutting surface of the first semi-magnetic ring 500 (the cutting surface from the complete magnetic ring to the two semi-magnetic rings; the bottom of the first clearance groove 510), and the other side of the second limiting protrusion 230 abuts against the cutting surface of the second semi-magnetic ring (the bottom of the second clearance groove). This transfers the pressure on the plastic housing to the fastened ferrite semi-magnetic ring, making the housing even less prone to damage.

[0036] Reference Figure 2 and Figure 3 In some embodiments of the present invention, at least three first support blocks 140 are provided in the first arc-shaped groove 110, and at least three second support blocks 240 are provided in the second arc-shaped groove 210.

[0037] The support block supports the semi-magnetic ring, creating a clearance space between the semi-magnetic ring and the arc-shaped groove wall (inner side of the housing). This facilitates removal of the semi-magnetic ring from the housing, especially when the housing has limit protrusions that could easily trap the semi-magnetic ring within the arc-shaped groove. Furthermore, to facilitate assembly of the semi-magnetic ring and the magnetic ring, the length and diameter of the semi-magnetic ring are smaller than those of the arc-shaped groove. The support block ensures sufficient clearance between the semi-magnetic ring and the housing for easy insertion. Furthermore, the design ensures that the semi-magnetic ring is not too tightly fitted after insertion, and also provides a certain degree of positioning and fixation for the semi-magnetic ring after it is placed in the arc-shaped groove, preventing it from moving freely. Additionally, electrical components generate heat due to resistance, leading to areas where the wiring harness is located often experiencing high temperatures in some usage scenarios. Therefore, after prolonged use, the contact area between the housing and the semi-magnetic ring may stick together. The support blocks allow for controllable and smaller areas of adhesion, facilitating the separation of the semi-magnetic ring from the housing and preventing heat transfer to the housing. Three support blocks are used, and these three blocks are not collinear, thus forming a roughly complete support surface (the curved surface is unfolded, and the three non-collinear points define a surface), ensuring effective support and preventing the semi-magnetic ring from tilting arbitrarily.

[0038] Reference Figure 1 and Figure 2 In some embodiments of the present invention, a first opening 150 is provided on the side of the first housing 100, and the first opening 150 is connected to the first arc-shaped groove 110.

[0039] The first opening 150 serves two purposes. First, it facilitates heat dissipation, allowing for easier exchange and flow between cool outside air and hot air inside the casing. Specifically, the magnetic ring's shielding effect is achieved by absorbing electromagnetic interference generated when current flows through the conductor and converting it into heat, thus reducing interference propagation. Therefore, the internal environment of the casing is heated by the magnetic ring, fulfilling a certain heat dissipation requirement. Second, the first opening 150, after the magnetic ring locking device is closed, allows for convenient observation of the casing's interior. In particular, if workers forget whether the magnetic ring is installed, they can simply look through the first opening 150 to confirm its presence without opening the locking device. It should be understood that multiple first openings 150 can be provided.

[0040] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the side of the first housing 100 is provided with a first opening 150, which is connected to the first arc-shaped groove 110, and the side of the second housing 200 is provided with a second opening 250, which is connected to the second arc-shaped groove 210.

[0041] The second opening 250, as described above, enhances heat dissipation and ease of observation. The presence of both the first and second openings 150, along with a support block, creates a gap between the semi-magnetic ring and the arc-shaped groove wall, further increasing airflow and heat dissipation. Additionally, in certain situations, cable ties can be used, inserted into the housing through the first opening 150 and then exiting through the second opening 250, connecting to the cable tie itself (locking ring). This ensures a more secure and stable closure of the magnetic ring locking device, preventing it from opening and detaching. In applications requiring strong shielding (such as automotive sensors, where uninterrupted image and radar detection is crucial to prevent accidents), this is particularly important. In situations where parts are particularly difficult to detach (e.g., inside an air conditioner, where parts are usually placed high up and falling could easily injure people or damage equipment), cable ties can be used to further tighten the magnetic ring locking device. On the other hand, when the closed fixing structure of the magnetic ring locking device itself fails, such as the buckle connection structure described below, where the male buckle 410 is relatively protruding, it is easy to collide with other objects during transportation and handling, causing the male buckle 410 to break. Moreover, after long-term use, it is also easy to break completely due to repeated elastic bending. In this case, cable ties can be used to replace the closed fixing structure of the magnetic ring locking device itself to lock the magnetic ring locking device.

[0042] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the magnetic ring locking device further includes a snap-fit ​​connection structure, which includes a male snap 410 and a female snap groove 420. One of the male snap 410 and the female snap groove 420 is disposed on the other side of the first housing 100, and the other is disposed on the other side of the second housing 200.

[0043] The snap-fit ​​connection structure is very simple and convenient. After the magnetic ring locking device is closed, simply snap the male snap-fit ​​410 into the female snap-fit ​​groove 420 to complete the closure and fixation. Disassembly is also simple; just pry the male snap-fit ​​410 out of the female snap-fit ​​groove 420 to allow the magnetic ring locking device to open. Therefore, the snap-fit ​​connection facilitates the assembly and disassembly of the magnetic ring. It should be understood that the male snap-fit ​​410 has a certain degree of elasticity and toughness, allowing it to engage smoothly with the female snap-fit ​​groove 420.

[0044] Reference Figure 1 and Figure 2 In some embodiments of the present invention, both the first housing 100 and the second housing 200 are made of ABS plastic.

[0045] ABS plastic is a terpolymer of acrylonitrile (A), butadiene (B), and styrene (S), and its molecular formula can be written as (C8H8·C4H6·C3H3N). x The relative contents of the three monomers can be varied arbitrarily to produce various resins. ABS plastic has good flame retardant properties and is a material with a high flame retardant rating. Therefore, using ABS plastic to manufacture the first shell 100 and the second shell 200 can effectively prevent the shell from being deformed, melted, or even burned due to the heat emitted by the magnetic ring.

[0046] Reference Figure 1 and Figure 3 According to an embodiment of the present invention, a magnetic ring locking device includes: the aforementioned magnetic ring locking device; a first half magnetic ring 500 located in a first arc-shaped groove 110; a second half magnetic ring located in a second arc-shaped groove 210; and a cable tie for passing through a connecting through hole 310.

[0047] The first half-magnetic ring 500 and the second half-magnetic ring both have a cross-sectional shape that is roughly a semi-ring structure, and the whole can be roughly regarded as a semi-circular tube structure (a circular tube is divided into two halves along its axis); and the two have basically the same shape and size.

[0048] The shielding mechanism of this invention includes a magnetic ring locking device. This device has a first arc-shaped groove 110 to accommodate a first half-magnetic ring 500 and a second arc-shaped groove 210 to accommodate a second half-magnetic ring. After the magnetic ring locking device is closed and installed onto the wire harness, the first half-magnetic ring 500 and the second half-magnetic ring are joined together to form a complete magnetic ring. The magnetic ring is fitted onto the wire harness, thus providing electromagnetic shielding, suppressing electromagnetic interference generated when the wire harness is energized, and preventing external interference from intruding into the wire harness and the connected equipment. A cable tie can then be used to pass through the connecting through-hole 310 to bind and connect the wire lug 300 and the wire harness near the wire opening, thereby fixing the magnetic ring locking device and the magnetic ring onto the wire harness. Using this method to fix the magnetic ring onto the wire harness does not require disassembling the wire harness end. Furthermore, when it is necessary to remove the magnetic ring from the wire harness, simply cut the cable tie and open the closed magnetic ring locking device to remove the magnetic ring from the wire harness. Therefore, the installation and removal of the magnetic ring are very simple and convenient.

[0049] Reference Figure 1 and Figure 3 According to the magnetic ring assembly method of the present invention, using the aforementioned shielding mechanism, the method includes the following steps: The first half-magnetic ring 500 is inserted into the first arc-shaped groove 110, and the second half-magnetic ring is inserted into the second arc-shaped groove 210. Align the opened magnetic ring locking device with the wire harness so that the wire harness is located in the first wire threading opening 120 and the first arc-shaped groove 110, and close the magnetic ring locking device (fasten the male buckle 410 into the female buckle groove 420). After passing through the connecting hole 310, the cable tie is tied to the wire harness (furthermore, the cable tie can be used to pass through the first opening 150 and the second opening 250 to lock the magnetic ring locking device).

[0050] The magnetic ring assembly method of the present invention involves first inserting the first half-magnetic ring 500 into the first arc-shaped groove 110 and the second half-magnetic ring into the second arc-shaped groove 210. Then, the opened magnetic ring locking device is aligned with the wire harness, so that the wire harness is located within the first wire-passing opening 120 and the first arc-shaped groove 110. The magnetic ring locking device is then closed, and the first half-magnetic ring 500 and the second half-magnetic ring are joined together to form a complete magnetic ring. The magnetic ring is fitted onto the wire harness, thereby providing electromagnetic shielding, suppressing electromagnetic interference generated when the wire harness is energized, and preventing external interference. To prevent interference with the wiring harness and the device connecting the wiring harness, a cable tie can be used to pass through the connection through hole 310 and bind the wire lug 300 and the wiring harness near the wire opening. This allows the magnetic ring locking device and the magnetic ring to be fixed to the wiring harness. Using this method to fix the magnetic ring to the wiring harness does not require disassembling the wiring harness end. When it is necessary to remove the magnetic ring from the wiring harness, simply cut the cable tie and open the closed magnetic ring locking device to remove the magnetic ring from the wiring harness. Therefore, the assembly and disassembly of the magnetic ring are very simple and convenient.

[0051] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A magnetic ring locking device, characterized in that, include: The first housing (100) is provided with a first arc-shaped groove (110), and both ends of the first housing (100) are provided with a first threading opening (120), and the first threading opening (120) is connected to the first arc-shaped groove (110); The second housing (200) is provided with a second arc-shaped groove (210), and both ends of the second housing (200) are provided with second threading openings (220), which are connected to the second arc-shaped groove (210); one side of the first housing (100) and one side of the second housing (200) are hinged, and the other side of the first housing (100) is used to abut against the other side of the second housing (200), thereby closing the magnetic ring locking device; after the magnetic ring locking device is closed, the first threading opening (120) and the second threading opening (220) located at the same end are connected; The wire lug (300) is provided with a connecting through hole (310), and the wire lug (300) is fixedly connected to one end of the first housing (100) or one end of the second housing (200).

2. The magnetic ring locking device according to claim 1, characterized in that, The top of both ends of the first arc-shaped groove (110) is provided with a first limiting protrusion (130), and the top of both ends of the second arc-shaped groove (210) is provided with a second limiting protrusion (230).

3. The magnetic ring locking device according to claim 2, characterized in that, The first limiting protrusion (130) is positioned at the top of both ends of the first arc-shaped groove (110) and the second limiting protrusion (230) is positioned at the top of both ends of the second arc-shaped groove (210); after the magnetic ring locking device is closed, the first limiting protrusion (130) located at the same end abuts against the second limiting protrusion (230).

4. The magnetic ring locking device according to claim 1, characterized in that, At least three first support blocks (140) are provided in the first arc-shaped groove (110), and at least three second support blocks (240) are provided in the second arc-shaped groove (210).

5. The magnetic ring locking device according to claim 1, characterized in that, The first housing (100) has a first opening (150) on its side, and the first opening (150) is connected to the first arc-shaped groove (110).

6. The magnetic ring locking device according to claim 4, characterized in that, The first housing (100) has a first opening (150) on its side, which is connected to the first arc-shaped groove (110). The second housing (200) has a second opening (250) on its side, which is connected to the second arc-shaped groove (210).

7. The magnetic ring locking device according to claim 1, characterized in that, The magnetic ring locking device further includes a snap-fit ​​connection structure, which includes a male snap (410) and a female snap groove (420). One of the male snap (410) and the female snap groove (420) is located on the other side of the first housing (100), and the other is located on the other side of the second housing (200).

8. The magnetic ring locking device according to claim 1, characterized in that, Both the first housing (100) and the second housing (200) are made of ABS plastic.

9. A shielding mechanism, characterized in that, include: The magnetic ring locking device according to any one of claims 1 to 8; The first half-magnetic ring (500) is located within the first arc-shaped groove (110); The second half-magnetic ring is located within the second arc-shaped groove (210); Cable ties are used to pass through the connecting through hole (310).

10. A method for assembling a magnetic ring, using the shielding mechanism of claim 9, characterized in that, Includes the following steps: The first half-magnetic ring (500) is inserted into the first arc-shaped groove (110), and the second half-magnetic ring is inserted into the second arc-shaped groove (210); Align the opened magnetic ring locking device with the wire harness so that the wire harness is located in the first wire threading opening (120) and the first arc-shaped groove (110), and close the magnetic ring locking device. The cable tie is passed through the connecting hole (310) and then tied to the wire harness.

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