Magnetizing structure and device

Abstract

The invention relates to a magnetizing structure and device, the magnetizing structure comprises at least two magnetizing carriers which are oppositely arranged up and down, each magnetizing carrier comprises a shell, and one side of the shell is provided with a lateral slot for laterally inserting a magnet; the bottom of the housing is provided with a magnet accommodating groove which is communicated with the lateral slot. A limiting area extends from the position, outside the magnet accommodating groove, of the shell; the bottom of the limiting area is elastically connected with a connecting hook part; a first coupling part and a second coupling part are arranged on the shell; wherein the first coupling part is an adaptive notch formed in the limiting area, and the second coupling part is a concave part arranged on the inner wall of the lateral slot. The assembly path (lateral direction) of the magnet is orthogonal to the main stress path (axial direction) during working, and the vertical wall surface of the connecting hook part is utilized to directly resist the pull-out force, so that the risk that the magnet exits along the original path due to long-term stress or fatigue is fundamentally avoided.

Description

Technical Field

[0001] This invention belongs to the field of magnetizer technology, specifically relating to a magnetizing structure and device. Background Technology

[0002] In modern consumer electronics, home furnishings, industrial fixtures, and various portable devices, the use of built-in permanent magnets to achieve adsorption, positioning, docking, or self-closing functions has become a common design. The core of this design is to integrate the magnet into the carrier body (such as the product shell or structural components) to ensure that it functions stably and does not produce abnormal noises or fall off during long-term use.

[0003] Specifically, existing magnet assembly methods mostly involve inserting the magnet along its magnetic field lines from the upper or lower surface of the carrier body into a pre-formed cylindrical or square cavity, followed by fixing. If a secure fixation is not guaranteed, the following end-processing methods are often used:

[0004] 1. Install an independent plastic cover or metal sheet at the cavity opening, and use screws, ultrasonic welding or clips for physical sealing;

[0005] 2. An elastic latch is designed at the cavity entrance, which holds the magnet in place after it is pressed in;

[0006] 3. Fill the space between the magnet and the cavity wall with epoxy resin or hot melt adhesive.

[0007] However, the above methods have problems such as high complexity or glue aging that affect efficiency in actual processing.

[0008] Furthermore, the direction of the main external force that the iron bears during the use of the device is exactly the same as the direction in which the magnet is inserted into the cavity. The fixing structure such as the cover plate, buckle or adhesive layer directly and for a long time bears the stress that causes the magnet to detach. Once the strength of the fixing structure decreases due to material creep, fatigue or assembly defects, the magnet is very likely to come out along its "original path", resulting in functional failure. In order to solve the above-mentioned risk of detachment, the staff has to add additional fixing components or other processes, which increases the cost.

[0009] Therefore, this invention proposes a magnetizing structure that can be installed from the side (i.e. parallel to the main force direction) and achieve reliable self-locking after the carrier body is assembled. The aim is to change the "assembly path" of the magnet and its "main force path" during operation from parallel to perpendicular or intersecting, thereby using the structural wall of the carrier body itself to resist the pull-out force. While simplifying the structure and improving the convenience of assembly, it fundamentally enhances the long-term reliability of magnet fixation. Summary of the Invention

[0010] To achieve the above objectives, the present invention mainly provides a magnetizing structure, comprising at least two magnetizing carriers arranged vertically opposite each other, wherein the magnetizing carriers include:

[0011] The housing has a lateral slot on one side for lateral insertion of a magnet;

[0012] The bottom of the outer casing has a magnet receiving groove that communicates with the side slot.

[0013] The outer casing extends to a limiting area located outside the magnet receiving groove;

[0014] The bottom of the limiting area is elastically connected with a connecting hook;

[0015] The outer casing is provided with a first coupling part and a second coupling part;

[0016] Wherein, the first coupling part is an adaptation slot opened on the limiting area, and the second coupling part is a recessed part provided on the inner wall of the lateral slot;

[0017] When magnets with the same polarity opposite are placed in the upper and lower magnetized carriers, the repulsive force between the magnets forces the connecting hook of the upper magnetized carrier to couple with the recess of the lower magnetized carrier, so that the upper and lower magnetized carriers maintain a pre-spreading distance.

[0018] When the magnetized structure is placed on the target product, the magnetic poles of the magnets tend to attract each other, driving the upper and lower magnetized carriers to overcome the internal magnetic repulsion and move closer to each other, causing the connecting hook to slide out of the recess and finally couple and lock with the adaptive slot.

[0019] Preferably, the connecting hook includes a vertical wall extending from the bottom end of the limiting area, and a cantilever hook formed by bending outward from the end of the vertical wall.

[0020] Preferably, when the connecting hook is coupled and locked with the adapting slot, the cantilever hook is engaged in the adapting slot and undergoes elastic deformation, and the vertical wall blocks the insertion path of the lateral slot.

[0021] Preferably, the depth of the recess in the vertical direction is greater than the depth of the lateral slot.

[0022] Preferably, when the connecting hooks of the upper and lower magnetic carriers are coupled with the recessed portion, the highest point of the vertical wall of the connecting hook is higher than the lowest point of the lateral slot.

[0023] Preferably, the bottom of the housing is provided with one or more positioning teeth.

[0024] Preferably, when the upper and lower magnetized carriers are coupled and locked to the adaptive slot through the connecting hook, the positioning teeth of the upper and lower magnetized carriers mesh with each other.

[0025] Preferably, the front and rear edges of the limiting area are trapezoidal in shape, and the trapezoidal edges have guide surfaces.

[0026] Preferably, the magnetizing carrier is integrally injection molded from plastic.

[0027] Secondly, a magnetic device is provided, comprising a magnetizing structure as described in any of the above claims.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] In this invention, the "assembly path" (lateral) of the magnet is orthogonal to the main "force path" (axial) during operation. The vertical wall of the connecting hook directly resists the pull-out force, fundamentally eliminating the risk that the magnet will pull out along the original path due to long-term stress or fatigue.

[0030] This invention utilizes the repulsive force of like-pole magnets to achieve pre-assembly and state maintenance, and then uses the magnetic circuit changes after the product is introduced to drive automatic and precise locking. This process does not require manual intervention or additional tools, and realizes automated and high-precision conversion from "pre-assembly state" to "final locking state". The assembly success rate is high, and the locking state is stable and reliable.

[0031] This invention physically blocks the lateral slot entrance on the vertical wall of the connecting hook after locking, preventing the magnet from exiting laterally; at the same time, the cantilever hook generates elastic deformation and restoring force within the slot, forming a continuous radial locking; and the positioning teeth of the upper and lower bodies mesh with each other, effectively resisting lateral shear and torsional torque, preventing internal micro-movement.

[0032] The final locking position of the present invention is determined by the dynamic balance between magnetic force and structural stiffness, so that the same structure can automatically adapt to the installation space of products of different sizes within a certain range. Moreover, the trapezoidal contour of the limiting area and the design of the guide surface make the outside of the assembly polygonal, which can not only be smoothly introduced, but also effectively adapt to various installation cavities such as circles, squares and irregular shapes, with high adaptability.

[0033] Furthermore, the two magnetized carriers in this invention form a stable module that can be transported and operated as a whole. The magnets can be inserted and the carriers can be pre-assembled on the production line in advance, and can be stored or distributed as standard modules, which greatly simplifies the assembly process of the final product and improves the overall production efficiency. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0035] Figure 2 This is a three-dimensional structural diagram of the magnetic carrier in this embodiment;

[0036] Figure 3 This is a three-dimensional structural diagram of the connecting hook in this embodiment;

[0037] Figure 4 This is a diagram of the first combination state of the magnetic carrier in this embodiment;

[0038] Figure 5 This is a cross-sectional view of the first combined state in this embodiment;

[0039] Figure 6 This is a diagram showing the second combination state of the magnetic carrier in this embodiment;

[0040] Figure 7 This is a cross-sectional view of the second combination state in this embodiment.

[0041] The numbers in the diagram are: 1-Magnetic carrier, 2-Outer shell, 3-Side slot, 4-Magnet receiving slot, 5-Limiting area, 6-Connecting hook, 601-Vertical wall, 602-Cantilever hook, 7-Adaptive slot, 8-Recess, 9-Positioning tooth, 10-Guide surface. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Example 1

[0044] like Figures 1 to 6A magnetizing structure includes at least two magnetizing carriers 1 arranged vertically opposite each other. Each magnetizing carrier 1 includes: a housing 2; a lateral slot 3 for lateral insertion of a magnet on one side of the housing 2; a magnet receiving groove 4 communicating with the lateral slot 3 on the bottom of the housing 2; a limiting area 5 extending from the outer side of the magnet receiving groove 4 on the housing 2; a connecting hook 6 elastically connected to the bottom of the limiting area 5; and a first coupling part and a second coupling part on the housing 2. The first coupling part is an adaptation slot 7 on the limiting area 5, and the second coupling part is a recess 8 on the inner wall of the lateral slot 3. When magnets with the same polarity opposite each other are placed in the upper and lower magnetizing carriers 1, the repulsive force between the magnets forces the connecting hook 6 of the upper magnetizing carrier 1 to couple with the recess 8 of the lower magnetizing carrier 1, maintaining a pre-spreading distance between the upper and lower magnetizing carriers 1. When the magnetizing structure is placed on a target product, the magnetic poles of the magnets attract each other, driving the upper and lower magnetizing carriers 1 to overcome internal magnetic repulsion and move closer together, thus connecting... The hook 6 slides out of the recess 8 and eventually couples and locks with the fitting slot 7; the connecting hook 6 includes a vertical wall 601 extending from the bottom end of the limiting area 5, and a cantilevered hook 602 formed by bending outward from the end of the vertical wall 601; when the connecting hook 6 is coupled and locked with the fitting slot 7, the cantilevered hook 602 engages in the fitting slot 7 and undergoes elastic deformation, and the vertical wall 601 blocks the insertion path of the lateral slot 3; the depth of the recess 8 in the vertical direction is greater than that of the lateral slot 3. Depth; When the connecting hook 6 of the upper and lower magnetic carriers 1 is coupled with the recessed part 8, the highest point of the vertical wall 601 of the connecting hook 6 is higher than the lowest point of the side slot 3; The bottom of the outer shell 2 is provided with one or more positioning teeth 9; When the upper and lower magnetic carriers 1 are coupled and locked with the adaptation slot 7 through the connecting hook 6, the positioning teeth 9 of the upper and lower magnetic carriers 1 mesh with each other; The front and rear edges of the limiting area 5 are trapezoidal in shape, and the trapezoidal edges have guide surfaces 10; The magnetic carrier 1 is integrally injection molded from plastic.

[0045] A magnetic device comprising the above-described magnetizing structure.

[0046] In this invention, the magnet's "assembly path" (lateral) is orthogonal to the main "force path" (axial) during operation. The vertical wall 601 of the connecting hook 6 directly resists the pull-out force, fundamentally eliminating the risk of the magnet exiting along its original path due to long-term stress or fatigue. This invention utilizes the repulsive force of like-pole magnets to achieve pre-assembly and state maintenance, and then uses the magnetic circuit change after product intervention to drive automatic and precise locking. This process requires no manual intervention or additional tools, achieving automated and high-precision conversion from the "pre-assembled state" to the "final locked state," resulting in a high assembly success rate and a stable and reliable locking state. After locking, the vertical wall 601 of the connecting hook 6 physically blocks the entrance to the lateral slot 3, preventing the magnet from exiting laterally. Simultaneously, the cantilever hook 602 undergoes elastic deformation within the adapting slot 7. The restoring force forms a continuous radial lock; and the positioning teeth 9 of the upper and lower bodies mesh with each other, effectively resisting lateral shear and torsional torque and preventing internal micro-movement; the final locking position of the present invention is determined by the dynamic balance of magnetic force and structural stiffness, so that the same structure can automatically adapt to the installation space of products of different sizes within a certain range, and the trapezoidal contour of the limiting area 5 and the design of the guide surface 10 make the exterior of the assembly polygonal, which can be smoothly introduced and effectively adapted to various installation cavities such as circles, squares and irregular shapes, with high adaptability; and the two magnetized carriers 1 in the present invention become a stable module that can be transported and operated as a whole. The magnet insertion and carrier pre-assembly can be completed in advance on the production line, and it can be stored or distributed as a standard module, which greatly simplifies the final product assembly process and improves the overall production efficiency.

[0047] Example 2

[0048] like Figures 1 to 6 A magnetizing structure includes at least two magnetizing carriers 1 that can be assembled vertically and vertically. Each magnetizing carrier 1 is made of integrally injection-molded engineering plastic, which ensures structural strength while having appropriate elastic deformation capacity to adapt to mechanical changes during dynamic assembly.

[0049] The magnetizing carrier 1 includes: a housing 2, with a lateral slot 3 extending horizontally on one side of the housing 2 for lateral insertion of a magnet; corresponding to the lateral slot 3, a magnet receiving groove 4 communicating with the lateral slot 3 and opening downwards is provided at the bottom of the housing 2, the size of the magnet receiving groove 4 matching the shape of the magnet to be installed, ensuring that the magnet can be received and positioned after being inserted horizontally.

[0050] The outer shell 2 extends to the outside of the magnet receiving groove 4 and is provided with a limiting area 5. The limiting area 5 not only forms part of the side wall boundary of the magnet receiving groove 4, which plays the role of restricting the lateral movement of the magnet in the receiving groove, but also has a connecting hook 6 elastically connected to its bottom edge, so that it can deflect and reset within a certain range.

[0051] The outer casing 2 is provided with a first coupling part and a second coupling part; wherein, the first coupling part is an adaptation slot 7 opened on the limiting area 5, and the second coupling part is a recess 8 provided on the inner wall of the side slot 3.

[0052] When magnets with the same polarity facing each other are placed in the two magnetized carriers 1 respectively, and the two magnetized carriers 1 are initially aligned vertically, the strong repulsive force between the magnets will naturally drive the two magnetized carriers 1 to separate from each other. Under the action of this repulsive force, the connecting hook 6 of the upper magnetized carrier 1 is forced to produce a slight elastic deformation and shift outward until its end is accurately embedded in the recess 8 of the inner wall of the side slot 3 of the lower magnetized carrier 1. After this coupling action is completed, the upper and lower magnetized carriers 1 are maintained in a pre-spreading distance defined by the interaction between the geometric depth and structure of the recess 8, forming a stable, pre-assembled module that can be operated as a whole.

[0053] When the module in the pre-opened state is placed in the preset installation position of the target product, the product structure will intervene and change the magnetic environment, causing the force between the magnets to change from repulsion to attraction. Driven by this attraction, the upper and lower magnetized carriers 1 overcome the initial repulsion barrier and begin to move closer to each other along the axial direction. With the relative movement, the connecting hook 6 slides smoothly out of the constraint of the recessed part 8 until the cantilever hook 602 at its end aligns with and engages with the adaptation slot 7 on the other magnetized carrier 1. When the hook enters the adaptation slot 7, it undergoes elastic deformation within the design range, generating a certain radial locking force.

[0054] Specifically, the connecting hook 6 includes a vertical wall 601 extending vertically or nearly vertically from the bottom of the limiting area 5, and a cantilever hook 602 formed by bending outward from the end of the vertical wall 601. When the connecting hook 6 completes the final coupling and locking with the adapting slot 7, it will achieve two effects simultaneously: First, the cantilever hook 602 is fully inserted and locked in the adapting slot 7, and its elastic deformation provides the main locking force; Second, the inner side of the vertical wall 601, at the final position, just completely blocks and seals the entrance channel of the lateral slot 3, forming a physical barrier, reducing the possibility of the installed magnet accidentally exiting or falling off from the side in working or vibration environments, and ensuring the absolute reliability of the entire magnetizing assembly during its service life.

[0055] Example 3

[0056] like Figures 4 to 7As shown, in a specific implementation scenario, the operator first inserts two pre-magnetized magnets with the same magnetic pole direction into the side slots 3 of each magnetized carrier 1 horizontally. The magnets slide into the magnet receiving slots 4 connected to the bottom of the side slots 3, forming an initial constraint on the magnets in the horizontal plane. Then, the two magnetized carriers 1 with the magnets installed are aligned vertically. At the moment they approach each other, due to the opposing poles of the internal magnets, a magnetic repulsion force is generated. Under the push of the repulsion force, the two magnetized carriers 1 cannot fit tightly together, but are forcibly separated. At this time, the connecting hook 6 at the bottom of the limiting area 5 of the upper magnetized carrier 1 is forced to undergo a slight elastic deflection outward under the action of the axial component of the repulsion force, and slides into the recessed part 8 specially set on the inner wall of the side slot 3 of the lower magnetized carrier 1. This state is defined as the "pre-tensioned assembly state". At this time, the two magnetized carriers 1 form a modular unit that can be transported as a whole through the coupling of the connecting hook 6 and the recessed part 8, and the magnets are safely constrained in their respective receiving slots.

[0057] When the pre-tensioned assembly is inserted into the preset installation position of the target product, such as the hinge cavity of a laptop, the interlayer of a magnetic protective case, or the cover of a smart home device, the external product structure begins to intervene and guide the conversion of the magnetic state. The pre-installed magnetic conductor or magnetic field of opposite polarity inside the product will affect the magnets in the magnetizing carrier 1, creating a stronger attraction between opposite magnetic poles in the magnetic circuit, overcoming the initial repulsion between the magnets. Driven by this combined force, the upper and lower magnetizing carriers 1 begin to move closer to each other along the axial direction, performing a closing motion. During this process, the connecting hook 6, which was originally stuck in the recess 8, moves out of the recess as the distance between the magnetizing carriers 1 decreases. The connecting hook 6 smoothly slides out of the constraint of the recess 8. As the closing motion continues, the dislodged connecting hook 6 moves along the inner wall of the limiting area 5 until its movement trajectory aligns with the adaptation slot 7 opened on another magnetized carrier 1. Under the continuous action of magnetic attraction, the cantilever hook 602 at the end of the connecting hook 6 is embedded in the adaptation slot 7. The hook undergoes controllable elastic deformation when entering the slot, and generates a certain radial locking force by the material's own restoring force after being fully in place. Moreover, the vertical wall 601 in the connecting hook 6 horizontally blocks the entrance channel of the side slot 3, forming a physical barrier to ensure that the installed magnet cannot be withdrawn or fall off from the side under any circumstances.

[0058] The depth of the recess 8 in the vertical direction must be greater than the depth of the side slot 3 itself. This is to ensure that, in the pre-tensioned state, when the connecting hook 6 is coupled to the recess 8, the highest point of its vertical wall 601 can always be higher than the lowest point of the side slot 3 entrance, thus preventing the possibility of the magnet accidentally displacing or coming out of the side slot 3 during the pre-opening stage or state transition.

[0059] Example 4

[0060] like Figures 1 to 3 As shown, the limiting area 5 has trapezoidal edges on both the front and rear sides. The edges of the trapezoids are cut into inclined guide surfaces 10. When the upper and lower magnetic carriers 1 are initially aligned and combined, or when the whole module is installed into the product, the guide surfaces 10 can provide a smooth introduction function, guide the parts to be accurately positioned, and effectively prevent damage or misalignment caused by hard impacts.

[0061] Furthermore, when the upper and lower magnetized carriers 1 are finally combined and locked, their respective trapezoidal edges are spliced ​​together, so that the outer contour of the entire assembly presents a polygonal shape with at least hexagonal or more sides. This outer contour design can enhance the anti-rotation capability of this embodiment in the product installation cavity, making it more stable to fit into circular, square or even irregularly shaped cavities, effectively broadening the versatility and application range of the magnetized structure.

[0062] Example 5

[0063] like Figures 1 to 3 As shown, at the bottom of the outer shell 2, one or more positioning teeth 9 are provided. When the upper and lower magnetic carriers 1 are finally coupled and locked by the connecting hook 6 and the adapting slot 7, the positioning teeth 9 of the upper and lower magnetic carriers 1 also mesh with each other at the same time, effectively resisting the lateral shear force or torsional torque that may occur during the working process, preventing lateral displacement or rotation between the magnetic carriers 1, and greatly enhancing the anti-interference stability and durability of the overall structure.

[0064] Example 6

[0065] Based on the content of embodiments 4 and 5, this embodiment proposes that the structure itself has the ability to adapt to different travel. Since the displacement from pre-opening to final locking is determined by the dynamic balance between magnetic force and structural stiffness, the magnetized structure of the same specification can automatically adapt to the installation space of products of different sizes within a certain range.

[0066] Example 7

[0067] A magnetizing device is provided, which uses a magnetizing structure to realize the functions of magnetic force generation and positioning. In application scenarios such as magnetic shafts of electronic devices, adsorption modules of magnetic protective sleeves, opening and closing mechanisms of smart home products, or rapid positioning units of industrial fixtures, it provides a long-lasting, stable and accurate magnetic drive or positioning function, which significantly reduces the difficulty and cost of production and assembly, and ensures product consistency and yield.

[0068] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0069] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A magnetizing structure, characterized in that, It includes at least two magnetizing carriers arranged vertically opposite each other, the magnetizing carriers comprising: The housing has a lateral slot on one side for lateral insertion of a magnet; The bottom of the outer casing has a magnet receiving groove that communicates with the side slot. The outer casing extends to a limiting area located outside the magnet receiving groove; The bottom of the limiting area is elastically connected with a connecting hook; The outer casing is provided with a first coupling part and a second coupling part; Wherein, the first coupling part is an adaptation slot opened on the limiting area, and the second coupling part is a recessed part provided on the inner wall of the lateral slot; When magnets with the same poles facing each other are placed in the upper and lower magnetized carriers, the repulsive force between the magnets forces the connecting hook of the upper magnetized carrier to couple with the recess of the lower magnetized carrier, so that the upper and lower magnetized carriers maintain a pre-spreading distance. When the magnetized structure is placed on the target product, the magnetic poles of the magnets tend to attract each other, driving the upper and lower magnetized carriers to overcome the internal magnetic repulsion and move closer to each other, causing the connecting hook to slide out of the recess and finally couple and lock with the adaptive slot.

2. The magnetizing structure according to claim 1, characterized in that, The connecting hook includes a vertical wall extending from the bottom of the limiting area, and a cantilever hook formed by bending outward from the end of the vertical wall.

3. The magnetizing structure according to claim 2, characterized in that, When the connecting hook is coupled and locked with the adapting slot, the cantilever hook is engaged in the adapting slot and undergoes elastic deformation, and the vertical wall blocks the insertion path of the lateral slot.

4. The magnetizing structure according to claim 1, characterized in that, The depth of the recess in the vertical direction is greater than the depth of the lateral slot.

5. The magnetizing structure according to claim 4, characterized in that, When the connecting hooks of the upper and lower magnetized carriers are coupled with the recessed portion, the highest point of the vertical wall of the connecting hook is higher than the lowest point of the lateral slot.

6. The magnetizing structure according to claim 1, characterized in that, The bottom of the housing is provided with one or more positioning teeth.

7. A magnetizing structure according to claim 6, characterized in that, When the upper and lower magnetized carriers are coupled and locked to the adaptive slot through the connecting hook, the positioning teeth of the upper and lower magnetized carriers mesh with each other.

8. The magnetizing structure according to claim 1, characterized in that, The front and rear edges of the limiting area are trapezoidal in shape, and the trapezoidal edges have guide surfaces.

9. A magnetizing structure according to claim 1, characterized in that, The magnetizing carrier is integrally injection molded from plastic.

10. A magnetic device, characterized in that, Includes the magnetized structure as described in any one of claims 1 to 9.

Images