Magnetic ring fixing device and electromagnetic compatibility unit

Abstract

The utility model discloses a magnetic ring fixing device and an electromagnetic compatibility unit. The magnetic ring fixing device comprises an upper cover and a base which are detachable and matched to cover; the edge of the upper cover is provided with a plurality of wire bundle locking buckles, and one side, facing the base, of the upper cover is provided with a plurality of fixing through holes matched with the wire bundle locking buckles; when a magnetic ring is placed on the side, facing the base, of the upper cover, the fixing through holes are used for being inserted into the head ends of the wire bundles in a matched mode, the tail ends of the wire bundles penetrate through the corresponding wire bundle locking buckles and are tensioned, and therefore the wire bundles surround the outer surface of the magnetic ring in the radial direction and / or the axial direction to form closed-loop constraint. According to the magnetic ring fixing device, the wire bundle is respectively connected with the wire bundle locking buckle and the fixing through hole, so that closed-loop constraint is formed to fix the magnetic ring on the upper cover, the operation consistency of fixing the magnetic ring by the magnetic ring fixing device is improved, the magnetic ring can be flexibly replaced, replacement and maintenance are facilitated, and the difficulty of after-sales maintenance is reduced; and the universality of the magnetic ring fixing device can be improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, and in particular to a magnetic ring fixing device and an electromagnetic compatibility unit. Background Technology

[0002] The household appliance industry widely uses various types of magnetic rings, generally for shielding equipment from electromagnetic interference and improving the electromagnetic compatibility performance of products. Commonly used magnetic ring structures in the industry include circular closed types and snap-fit ​​semi-closed types. Methods for fixing magnetic rings usually rely on the existing structural features and fasteners to achieve the desired fixation, such as snap-fit ​​structures, fixing groove structures, and wire ties. However, these methods have the following drawbacks:

[0003] 1. The above-mentioned structural features (such as snap-fit ​​structures, fixing groove structures, etc.) are proprietary, have limited applicability, and are inconvenient to use. Adjusting the fixing method of the magnetic ring or replacing the magnetic ring will cause changes in the structural features, resulting in the magnetic ring after adjustment or replacement no longer being stably fixed by the original snap-fit ​​or fixing groove structure. Instead, it is necessary to re-mold, which leads to a waste of costs.

[0004] 2. While wire tying is not structurally limited, the excess tail needs to be cut off after fixing the magnetic ring, and the wire tying is only effective once. On the one hand, it cannot be reused, and on the other hand, the tail-cutting process is cumbersome, resulting in low production efficiency and problems such as sharp tails scratching wiring, fittings, and components.

[0005] 3. The above-mentioned structural features and fasteners (such as snap-fit ​​structures, fixing groove structures, wire ties, etc.) have poor operational consistency in fixing magnetic rings, which is not conducive to replacement and repair, and increases the difficulty of after-sales maintenance.

[0006] Therefore, how to provide a magnetic ring fixing device that improves versatility and allows for flexible replacement of magnetic rings is an urgent technical problem to be solved. Utility Model Content

[0007] This utility model provides a magnetic ring fixing device and an electromagnetic compatibility unit to solve the problems of poor versatility and inflexible replacement of magnetic rings in existing magnetic ring fixing devices.

[0008] The technical solution of this utility model is a magnetic ring fixing device, including: a detachable and matching upper cover and a base;

[0009] The edge of the top cover is provided with multiple wire locking buckles, and the side of the top cover facing the base is provided with multiple fixing through holes that are adapted to the wire locking buckles;

[0010] When a magnetic ring is placed on the side of the top cover facing the base, the fixing through hole is used to match the head end of the inserted wire tie. The end of the wire tie passes through the corresponding wire tie locking buckle and is tightened, so that the wire tie forms a closed loop constraint around the outer surface of the magnetic ring in the radial and / or axial directions.

[0011] Furthermore, the surface of the wire bundle is provided with continuous serrated portions along its length;

[0012] The wire tie locking buckle has at least one locking tooth portion that is adapted to the serrated portion inside. The locking tooth portion is connected to an elastic member, and a portion of the elastic member extends out of the wire tie locking buckle.

[0013] The end of the wire tie passes through the corresponding wire tie locking buckle, and the serrated part engages with the corresponding locking tooth part to achieve one-way locking. When the elastic element is pressed, the elastic element drives the locking tooth part to disengage from the serrated part, thus releasing the locking state.

[0014] Furthermore, the base is provided with a matching wire bundle storage groove corresponding to the wire bundle locking fastener, the wire bundle storage groove being used to store the end of the wire bundle.

[0015] Furthermore, the fixing through hole includes at least two first through holes disposed in the middle of the upper cover;

[0016] The magnetic ring is placed vertically along its axial direction on the side of the upper cover facing the base, and the first through hole is located in the central through hole of the magnetic ring;

[0017] Each of the first through holes is respectively matched and inserted into the head end of the wire tie. The end of the wire tie passes through the corresponding wire tie locking buckle and is tightened, so that the wire tie forms a closed loop constraint radially around one side of the magnetic ring.

[0018] Furthermore, the magnetic ring is placed horizontally along its axial direction on the side of the upper cover facing the base;

[0019] The fixed through hole includes at least two second through holes arranged around the magnetic ring;

[0020] Each of the second through holes is respectively matched and inserted into the head end of the wire tie. The end of the wire tie passes through the corresponding wire tie locking buckle and is tightened, so that the wire tie forms a closed loop constraint around the outer surface of the magnetic ring in the radial and axial directions.

[0021] Furthermore, the base has multiple locking blocks on one edge facing the top cover, and the top cover has buckles corresponding to the locking blocks, which are matched and engaged with the corresponding locking blocks.

[0022] Furthermore, the outer side wall of the base is provided with a plurality of first barbs, which are used to fix the base to the housing of the unit.

[0023] Furthermore, the head of the wire tie is provided with a second barb, which forms a detachable connection with the corresponding fixing through hole.

[0024] Furthermore, a pressing part is provided at the end of the second barb portion facing the end of the wire tie.

[0025] This utility model also proposes an electromagnetic compatibility unit, including a magnetic ring and the magnetic ring fixing device described above.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] This utility model uses wire ties to connect to the wire tie locking buckle and the fixing through hole respectively, thereby forming a closed loop constraint to fix the magnetic ring to the upper cover. This improves the consistency of the magnetic ring fixing device in fixing the magnetic ring, allows for flexible replacement of the magnetic ring, facilitates replacement and maintenance, and reduces the difficulty of after-sales maintenance. It also improves the versatility of the magnetic ring fixing device and reduces production costs. Attached Figure Description

[0028] 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; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects and not to describe a particular order.

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is an exploded view of the magnetic ring fixing device proposed in this utility model;

[0031] Figure 2 for Figure 1 An enlarged schematic diagram of reference numeral A in the attached figure;

[0032] Figure 3This is an exploded view of the top cover and base proposed in this utility model;

[0033] Figure 4 for Figure 3 An enlarged view of reference numeral B in the attached diagram;

[0034] Figure 5 A top view of the first magnetic ring fixing device proposed in this utility model, showing the fixing of the magnetic ring;

[0035] Figure 6 This is a schematic diagram of the structure of the first magnetic ring fixing device proposed in this utility model for fixing the magnetic ring;

[0036] Figure 7 for Figure 6 Enlarged schematic diagram of reference numeral C in the attached figure;

[0037] Figure 8 A top view of the second magnetic ring fixing device proposed in this utility model for fixing the magnetic ring;

[0038] Figure 9 This is a partial internal structure diagram of the electromagnetic compatibility unit proposed in this utility model.

[0039] Figure label:

[0040] 10. Top cover;

[0041] 101. Wire tie lock; 1011. Guide through hole; 102. Fixing through hole; 1021. First through hole; 1022. Second through hole; 103. Locking tooth part; 104. Elastic element; 105. Buckle;

[0042] 20. Base;

[0043] 201. Wire bundling storage slot; 202. Clip; 203. First barb section;

[0044] 30. Wire tying;

[0045] 301. Serrated part; 302. Second barb part; 303. Pressing part;

[0046] 40. Magnetic ring;

[0047] 401. Center through hole;

[0048] 50. Shell. Detailed Implementation

[0049] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present utility model, and does not imply that every embodiment of the present utility model must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0050] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0051] In some embodiments, such as Figure 1 As shown, this utility model provides a magnetic ring fixing device that improves versatility and allows for flexible replacement of the magnetic ring 40, including: a detachable and matching upper cover 10 and a base 20.

[0052] The edge of the upper cover 10 is provided with a plurality of wire locking buckles 101, and the side of the upper cover 10 facing the base 20 is provided with a plurality of fixing through holes 102 that are adapted to the wire locking buckles 101.

[0053] When a magnetic ring 40 is placed on the side of the upper cover 10 facing the base 20, the fixing through hole 102 is used to match the head end of the inserted wire tie 30. The end of the wire tie 30 passes through the corresponding wire tie locking buckle 101 and is tightened, so that the wire tie 30 forms a closed loop constraint around the outer surface of the magnetic ring 40 in the radial and / or axial directions.

[0054] It is understood that the shape of the magnetic ring 40 proposed in this embodiment is preferably circular. Of course, the shape of the magnetic ring 40 can be selected as square or other suitable shapes according to the actual situation, and is not limited here.

[0055] Thus, when the user needs to first fix the base 20 in a suitable position on the housing 50 of the corresponding unit, and then fix the magnetic ring 40 in the magnetic ring fixing device of this embodiment, the magnetic ring 40 should first be placed on the side of the upper cover 10 facing the base 20, and then the head end of the wire tie 30 should be sequentially inserted into the corresponding fixing through hole 102. Then the end of the wire tie 30 should pass over the magnetic ring 40 and then pass through the corresponding wire tie locking buckle 101 and be tightened, so that the wire tie 30 forms a closed loop constraint around the magnetic ring 40, thereby achieving radial limiting. Finally, the upper cover 10 with the magnetic ring 40 is detachably connected to the base 20, thereby completing the step of fixing the magnetic ring 40 in the magnetic ring fixing device.

[0056] When the user needs to replace the magnetic ring 40, the upper cover 10 must first be removed from the base 20, and then the wire tie 30 must be removed from the magnetic ring 40 to remove the magnetic ring 40, replace it with a new magnetic ring, and then complete the steps of fixing the magnetic ring 40 with the wire tie 30 and detachably connecting the upper cover 10 to the base 20.

[0057] Of course, even if the new magnetic ring is larger than the original magnetic ring 40, the magnetic ring fixing device proposed in this embodiment can still stably fix the new magnetic ring on the magnetic ring fixing device by means of wire tie 30.

[0058] Therefore, this utility model connects the wire tie 30 to the wire tie locking buckle 101 and the fixing through hole 102 respectively, thereby forming a closed-loop constraint to fix the magnetic ring 40 to the upper cover 10, thereby improving the consistency of the operation of fixing the magnetic ring 40 by the magnetic ring fixing device, allowing the magnetic ring 40 to be replaced flexibly, which is conducive to replacement and maintenance and reduces the difficulty of after-sales maintenance; and it can also improve the versatility of the magnetic ring fixing device and reduce production costs.

[0059] In some embodiments, to ensure that the wire tie locking buckle 101 is a reusable locking structure, the wire tie 30 can be reused, reducing production costs, such as... Figure 1 , Figure 2 and Figure 4 As shown, the surface of the wire tie 30 is provided with a continuous serrated portion 301 along the length direction;

[0060] The wire lock buckle 101 has at least one locking tooth 103 that is adapted to the serrated part 301. The locking tooth 103 is connected to an elastic member 104, and a portion of the elastic member 104 extends out of the wire lock buckle 101.

[0061] Wherein, the end of the wire tie 30 passes through the corresponding wire tie locking buckle 101, the serrated part 301 engages with the corresponding locking tooth part 103 to achieve one-way locking, when the elastic member 104 is pressed, the elastic member 104 drives the locking tooth part 103 to disengage from the serrated part 301, and releases the locking state.

[0062] Understandably, the wire tie locking buckle 101 has a guide hole 1011 along its axial direction. The guide hole 1011 can limit the lateral displacement of the wire tie 30 passing through it. Furthermore, a locking tooth portion 103 is provided on the inner wall of the guide hole 1011 near the upper cover 10. This locking tooth portion 103 has a one-way reverse tooth structure, so that the wire tie 30 can achieve one-way locking through the engagement of the serrated portion 301 and the locking tooth portion 103. The inclination direction of the locking tooth portion 103 is consistent with the insertion direction of the wire tie 30. The locking tooth portion 103 and the elastic element 104 are integrally formed.

[0063] In this way, when the user inserts the head end of the wire tie 30 into the corresponding fixing through hole 102 in sequence, and then the end of the wire tie 30 passes over the magnetic ring 40 and passes through the corresponding wire tie locking buckle 101 and is tightened, the wire tie 30 forms a closed loop constraint around the magnetic ring 40, thereby fixing the magnetic ring 40 to the upper cover 10. If the user wants to replace the magnetic ring 40, the user can press the elastic element 104, which will drive the locking tooth part 103 to disengage from the sawtooth part 301, releasing the locking state. At this time, the user can easily pull the wire tie 30 out completely from the wire tie locking buckle 101, ensuring that the wire tie 30 can be reused, reducing production costs and improving environmental protection.

[0064] Of course, in other embodiments, the material of the elastic element 104 is preferably spring steel or engineering plastic; and the pressing part of the elastic element 104 extending out of the wire lock buckle 101 is provided with anti-slip texture, so that the user can press the elastic element 104.

[0065] In other embodiments, to ensure that the magnetic ring fixing device can accommodate the excess portion of the wire bundle 30 and avoid affecting the installation or operation of other components, such as... Figure 3 and Figure 7 As shown, the base 20 is provided with a matching wire bundle storage groove 201 corresponding to the wire bundle locking buckle 101, and the wire bundle storage groove 201 is used to store the end of the wire bundle 30.

[0066] It is understood that the wire bundling storage groove 201 proposed in this embodiment is preferably elongated, and the size of the wire bundling storage groove 201 is just enough to allow the wire bundling 30 to pass through, thereby preventing the wire bundling 30 from easily coming out of the wire bundling storage groove 201 due to shaking or other factors.

[0067] Therefore, by placing the excess portion of the wire bundle 30 into the wire bundle storage slot 201, this embodiment can eliminate the tail-cutting process of the wire bundle 30, improve production efficiency, and prevent the wire bundle 30 from having sharp ends that could scratch wiring, fittings, and components. Furthermore, it can also enable the wire bundle 30 to be reused. If the excess portion of the wire bundle 30 is cut off, and the width and height of the new magnetic ring are both greater than the original magnetic ring 40, then the cut-off wire bundle 30 will not have enough length to form a closed-loop constraint around the new magnetic ring, thus making it impossible to reuse the wire bundle 30.

[0068] In some embodiments, such as Figure 1 As shown, the head of the wire tie 30 is provided with a second barb portion 302 that can undergo elastic deformation, and the second barb portion 302 is detachably connected to the corresponding fixing through hole 102.

[0069] In this way, when the user squeezes the second barb 302 of the wire tie 30 into the fixing through hole 102, the second barb 302 will elastically deform inward to facilitate insertion into the fixing through hole 102. After insertion, the second barb 302 will return to its original position due to its own elastic deformation, resulting in the width of the second barb 302 being greater than the diameter of the fixing through hole 102, thereby preventing the second barb 302 from detaching from the fixing through hole 102.

[0070] When the user needs to remove the wire tie 30 that secures the magnetic ring 40, first remove the top cover 10 from the base 20, then press the elastic member 104 so that the elastic member 104 can drive the locking tooth part 103 to disengage from the saw tooth part 301, so that the wire tie 30 can be pulled out from the wire tie locking buckle 101. Then, pull out the wire tie 30 along the insertion direction of the head of the wire tie 30 so that the wire tie 30 can be reused.

[0071] In some embodiments, to ensure that the magnetic ring fixing device can stably fix the magnetic ring 40, this embodiment proposes a first method for fixing the magnetic ring 40, such as... Figure 1 , Figure 5 and Figure 6 As shown, the fixing through hole 102 includes two first through holes 1021 disposed in the middle of the upper cover 10;

[0072] The magnetic ring 40 is placed vertically along its axial direction on the side of the upper cover 10 facing the base 20, and the first through hole 1021 is located in the central through hole 401 of the magnetic ring 40.

[0073] Each of the first through holes 1021 is respectively matched and inserted into the head end of the wire tie 30. The end of the wire tie 30 passes through the corresponding wire tie locking buckle 101 and is tightened, so that the wire tie 30 forms a closed loop constraint around one side of the magnetic ring 40 in the radial direction.

[0074] The paths of any of the aforementioned wire bundles 30 do not intersect.

[0075] It should be noted that the two first through holes 1021 located in the middle of the upper cover 10 are inclined. And the magnetic ring 40 is placed vertically along its axial direction on the side of the upper cover 10 facing the base 20, indicating that the axis of the central through hole 401 of the magnetic ring 40 is parallel to the direction of gravity.

[0076] Therefore, the method for fixing the magnetic ring 40 proposed in this embodiment is as follows:

[0077] First, place the magnetic ring 40 vertically along its axial direction on the side of the upper cover 10 facing the base 20, ensuring that the first through holes 1021 are all located in the central through hole 401 of the magnetic ring 40; then, insert the second barb portions 302 of the two wire ties 30 into the first through holes 1021 respectively, and then pass the ends of the wire ties 30 over the magnetic ring 40 from above, and then pass them through the corresponding wire tie locking buckles 101 and tighten them, so that the wire ties 30 form a closed loop constraint around one side of the magnetic ring 40 radially, thereby fixing the magnetic ring 40 on the upper cover 10; and at this time, the paths of the two wire ties 30 do not intersect.

[0078] In some embodiments, to ensure that the magnetic ring fixing device can stably fix the magnetic ring 40, this embodiment proposes a second method for fixing the magnetic ring 40, such as... Figure 1 and Figure 8 As shown, the magnetic ring 40 is placed horizontally along its axial direction on the side of the upper cover 10 facing the base 20;

[0079] The fixed through hole 102 includes two second through holes 1022 arranged around the magnetic ring 40;

[0080] Each of the second through holes 1022 is respectively matched and inserted into the head end of the wire tie 30. The end of the wire tie 30 passes through the corresponding wire tie locking buckle 101 and is tightened, so that the wire tie 30 forms a closed loop constraint around the outer surface of the magnetic ring 40 in the radial and axial directions.

[0081] It should be noted that the two second through holes 1022 surrounding the magnetic ring 40 on the top cover 10 are set at right angles. Furthermore, the magnetic ring 40 is placed horizontally along its axial direction on the side of the top cover 10 facing the base 20, indicating that the axis of the central through hole 401 of the magnetic ring 40 is perpendicular to the direction of gravity.

[0082] Therefore, the method for fixing the magnetic ring 40 proposed in this embodiment is as follows:

[0083] First, place the magnetic ring 40 horizontally along its axial direction on the side of the upper cover 10 facing the base 20, ensuring that the second through holes 1022 are all located on the upper cover 10 outside the magnetic ring 40; then, insert the second barb portions 302 of the two wire ties 30 into the second through holes 1022 respectively, and then pass the ends of the wire ties 30 from above the entire magnetic ring 40 along the axial and radial directions, and then pass them through the corresponding wire tie locking buckles 101 and tighten them so that the wire ties 30 form a closed loop constraint, thereby fixing the magnetic ring 40 on the upper cover 10. At this time, the two wire ties 30 cross each other.

[0084] In some embodiments, to ensure that the upper cover 10 and the base 20 form a detachable connection, such as Figure 1 and Figure 3As shown, the base 20 has multiple locking blocks 202 on one side of the side facing the upper cover 10, and the upper cover 10 has a buckle 105 corresponding to the locking block 202. The buckle 105 matches and engages with the corresponding locking block 202.

[0085] It should be noted that the shape of the top cover 10 and the base 20 is preferably cuboid or cube, and a buckle 105 is provided on all four sides of the edge of the top cover 10; similarly, a corresponding latch 202 is provided on all four sides of the edge of the base 20.

[0086] In this way, the user can remove the magnetic ring 40 by opening the latching structure between the top cover 10 and the base 20 without disassembling the base 20, so as to replace the magnetic ring and repair the device.

[0087] In some embodiments, such as Figure 1 and Figure 9 As shown, the outer side wall of the base 20 is provided with a plurality of first barbs 203 that can undergo elastic deformation. The first barbs 203 are used to fix the base 20 to the housing 50 of the unit.

[0088] It is understandable that a suitable sheet metal hole (not shown, same throughout) is provided at a suitable position on the housing 50 of the corresponding unit.

[0089] In this way, when the user squeezes the first barb 203 of the base 20 into the sheet metal hole, the first barb 203 will undergo elastic deformation inward to smoothly insert into the sheet metal hole. After the first barb 203 is inserted, it will return to its original position due to its own elastic deformation, resulting in the width of the first barb 203 being greater than the diameter of the sheet metal hole, thereby preventing the first barb 203 from coming off the sheet metal hole.

[0090] In some embodiments, to facilitate the user inserting the second barb 302 into the fixing through hole 102, such as... Figure 1 As shown, the second barb portion 302 has a pressing portion 303 at one end facing the end of the wire tie 30.

[0091] In this way, the user can use their finger or a tool to press against the pressing part 303, and then press it firmly against the fixing through hole 102 to insert the second barb part 302 into the fixing through hole 102.

[0092] It should be noted that the surface of the pressing part 303 is provided with anti-slip texture to improve friction.

[0093] In some embodiments, such as Figure 9 As shown, this utility model also proposes an electromagnetic compatibility unit, including a magnetic ring 40 and the magnetic ring fixing device described above.

[0094] It should be noted that the electromagnetic compatibility unit proposed in this embodiment is illustrated using a refrigerator as an example. Of course, the electromagnetic compatibility unit can also be used for household appliances such as air conditioners, and is not limited here.

[0095] In this way, when the user needs to first fix the base 20 in a suitable position on the refrigerator shell 50, then place the magnetic ring 40 on the side of the top cover 10 facing the base 20, then insert the head end of the wire tie 30 into the corresponding fixing through hole 102 in sequence, and then the end of the wire tie 30 passes over the magnetic ring 40 and passes through the corresponding wire tie locking buckle 101 and is tightened, so that the wire tie 30 forms a closed loop constraint around the magnetic ring 40, thereby achieving radial limiting, thus completing the step of fixing the magnetic ring 40 with the magnetic ring fixing device; finally, the buckle 105 of the top cover 10 with the magnetic ring 40 is detachably connected to the buckle block 202 of the base 20.

[0096] When the user needs to replace the magnetic ring 40, the upper cover 10 must first be removed from the base 20, and then the wire tie 30 must be removed from the magnetic ring 40 to remove the magnetic ring 40, replace it with a new magnetic ring, and then complete the steps of securing the magnetic ring 40 with the wire tie 30 and detachably connecting the upper cover 10 to the base 20. Of course, even if the new magnetic ring is larger than the original magnetic ring 40, the magnetic ring fixing device proposed in this embodiment can still stably fix the new magnetic ring on the magnetic ring fixing device through the wire tie 30.

[0097] Therefore, this utility model connects the wire tie 30 to the wire tie locking buckle 101 and the fixing through hole 102 respectively, thereby forming a closed-loop constraint to fix the magnetic ring 40 to the upper cover 10, thereby improving the consistency of the operation of fixing the magnetic ring 40 by the magnetic ring fixing device, allowing the magnetic ring 40 to be replaced flexibly, which is conducive to replacement and maintenance and reduces the difficulty of after-sales maintenance; and it can also improve the versatility of the magnetic ring fixing device and reduce production costs.

[0098] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A magnetic ring fixing device, characterized in that, include: A removable and mating top cover (10) and base (20); The edge of the upper cover (10) is provided with a plurality of wire locking buckles (101), and the side of the upper cover (10) facing the base (20) is provided with a plurality of fixing through holes (102) that are adapted to the wire locking buckles (101); When a magnetic ring (40) is placed on the side of the upper cover (10) facing the base (20), the fixing through hole (102) is used to match the head end of the inserted wire tie (30). The end of the wire tie (30) passes through the corresponding wire tie locking buckle (101) and is tightened, so that the wire tie (30) forms a closed loop constraint around the outer surface of the magnetic ring (40) in the radial and / or axial directions.

2. The magnetic ring fixing device according to claim 1, characterized in that, The surface of the wire tie (30) is provided with a continuous serrated portion (301) along the length direction; The wire ties locking buckle (101) has at least one locking tooth (103) that is adapted to the serrated part (301) inside. The locking tooth (103) is connected to an elastic member (104), and a portion of the elastic member (104) extends out of the wire ties locking buckle (101). The end of the wire tie (30) passes through the corresponding wire tie locking buckle (101), and the serrated part (301) engages with the corresponding locking tooth part (103) to achieve one-way locking. When the elastic member (104) is pressed, the elastic member (104) drives the locking tooth part (103) to disengage from the serrated part (301) and release the locking state.

3. The magnetic ring fixing device according to claim 1, characterized in that, The base (20) is provided with a matching wire bundle storage groove (201) corresponding to the wire bundle locking buckle (101), and the wire bundle storage groove (201) is used to store the end of the wire bundle (30).

4. The magnetic ring fixing device according to claim 1, characterized in that, The fixing through hole (102) includes at least two first through holes (1021) disposed in the middle of the upper cover (10); The magnetic ring (40) is placed vertically along its axial direction on the side of the upper cover (10) facing the base (20), and the first through hole (1021) is located in the central through hole (401) of the magnetic ring (40); Each of the first through holes (1021) is respectively matched and inserted into the head end of the wire tie (30), and the end of the wire tie (30) passes through the corresponding wire tie locking buckle (101) and is tightened, so that the wire tie (30) forms a closed loop constraint radially around one side of the magnetic ring (40).

5. The magnetic ring fixing device according to claim 1, characterized in that, The magnetic ring (40) is placed horizontally along its axial direction on the side of the upper cover (10) facing the base (20); The fixed through hole (102) includes at least two second through holes (1022) arranged around the magnetic ring (40); Each of the second through holes (1022) is respectively matched and inserted into the head end of the wire tie (30), and the end of the wire tie (30) passes through the corresponding wire tie locking buckle (101) and is tightened, so that the wire tie (30) forms a closed loop constraint around the outer surface of the magnetic ring (40) in the radial and axial directions.

6. The magnetic ring fixing device according to claim 1, characterized in that, The base (20) has multiple locking blocks (202) on one side of the upper cover (10), and the upper cover (10) has a buckle (105) corresponding to the locking block (202), and the buckle (105) matches and engages with the corresponding locking block (202).

7. The magnetic ring fixing device according to claim 1, characterized in that, The outer side wall of the base (20) is provided with a plurality of first barbs (203), which are used to fix the base (20) to the housing of the unit.

8. The magnetic ring fixing device according to claim 1, characterized in that, The head of the wire tie (30) is provided with a second barb (302), and the second barb (302) is detachably connected to the corresponding fixing through hole (102).

9. The magnetic ring fixing device according to claim 8, characterized in that, The second barb (302) has a pressing part (303) at one end facing the end of the wire tie (30).

10. An electromagnetic compatibility unit, comprising a magnetic ring (40), characterized in that, The electromagnetic compatibility unit includes the magnetic ring fixing device as described in any one of claims 1-9.

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