A magnet assembly for a lock opener with fast unlocking

Abstract

The present invention provides a magnet assembly for a lock opener with fast unlocking, and belongs to the technical field of magnet assemblies for lock openers. The magnet assembly includes a magnet group in a Halbach array, the magnet group includes a middle magnet, peripheral magnets distributed around the middle magnet, and the middle magnet and the peripheral magnet are bonded together with glue; the magnet group is assembled using a one-step jig, a two-step jig, a three-step jig, and a four-step jig. The magnet group in the Halbach array of the present invention can effectively improve the space utilization rate and the magnetic field is evenly distributed. It is light and compact, and reduces the diffusion of the magnetic field in unnecessary directions. The strong side surface magnetic field strength of the Halbach array magnet group is 1.4 times that of a traditional single magnet under the same volume. Through simulation design, the middle magnet is combined with four peripheral magnets to reach a surface magnetic Gauss of 12500GS, which is 10 times that of an ordinary magnet, and unlocks faster. In addition, the magnet group is assembled using a jig designed by itself, which can accurately arrange the magnets and effectively reduce the difficulty and danger of magnet assembly.

Description

Technical Field

[0001] The invention provides a magnet assembly for an unlocking device with fast unlocking, belonging to the technical field of magnet assemblies for unlocking devices. Background Art

[0002] A lock pick tool is a device or tool used to open a lock. Currently, the most common lock picks are mainly magnetic or mechanical. Among them, the magnetic lock pick must have a magnet component. The principle of magnetic unlocking mainly relies on the interaction between the magnetic key or magnetic card and the magnetic components inside the lock. When the magnetic key or magnetic card is inserted into the lock, the internal magnetic components will be affected by the magnetic force and produce a specific magnetic field layout in the correct position. The internal mechanism of the lock judges the legitimacy of the key or card based on this specific magnetic field layout. If the magnetic field layout matches correctly, the internal mechanism of the lock will release the bolt or deadbolt, allowing the lock cylinder to be rotated or other operations to open the lock.

[0003] The existing unlocking magnet assembly can basically meet the normal use needs, but there are still certain defects: after the existing magnet assembly is assembled together, the magnetic field tends to spread in unnecessary directions, resulting in a relatively low surface magnetic Gauss. In order to improve the surface magnetic Gauss, more magnets are usually set, resulting in space utilization and uneven magnetic field distribution. In addition, when assembling the magnets, they are directly manually glued with glue. Since they are assembled by repulsive force and the magnetic force is divergent, improper operation may hurt the hands, causing the magnet assembly to deviate, resulting in inaccurate arrangement, difficulty in assembling the magnets, and high risk. Based on this, the present invention provides an unlocking magnet assembly with fast unlocking. Summary of the invention

[0004] The technical problem solved by the present invention is that the magnetic field tends to diffuse in unnecessary directions, resulting in a relatively low surface magnetic Gauss. Setting more magnets leads to low space utilization and uneven magnetic field distribution. Direct manual gluing of magnets with glue may cause the magnet assembly to shift, resulting in inaccurate arrangement, making the magnet assembly difficult and dangerous.

[0005] In order to solve the technical problem, the technical solution provided by the present invention is: a magnet assembly of a lock opener with fast unlocking, including a magnet group in a Halbach array, which is used to improve space utilization and reduce the diffusion of magnetic fields in unnecessary directions. The magnet group includes a middle magnet and peripheral magnets distributed around the middle magnet, and the middle magnet and the peripheral magnets are bonded together with glue; the magnet group is assembled using a one-process jig, a two-process jig, a three-process jig, and a four-process jig to reduce the difficulty and danger of magnet assembly. The one-process jig, the two-process jig, the three-process jig, and the four-process jig all include a bottom plate, an acrylic cover plate is provided on the top of the bottom plate, a magnet assembly groove is opened on the top of the bottom plate, a block is provided on one side of the magnet assembly groove, and a pressure rod is provided on the other side of the magnet assembly groove.

[0006] Furthermore, the glue used is Loctite AA805 anaerobic glue and 703A / B glue, which are first bonded together with anaerobic glue, and then 703A / B needs to be applied to the bonding position of the magnets to maintain pressure after being assembled into a finished product.

[0007] Furthermore, the peripheral magnets are N on the outside and S on the inside, and the middle magnet is axially magnetized.

[0008] Furthermore, a block groove which is interlinked with the magnet assembly groove and matches with the block is provided on one side of the top of the bottom plate, and a pressure rod groove which is interlinked with the magnet assembly groove and matches with the pressure rod is provided on the other side of the top of the bottom plate.

[0009] Furthermore, the four corners of the acrylic cover are provided with bolts fixedly connected to the base plate.

[0010] Furthermore, two side walls of the bottom plate are symmetrically provided with two screw holes that are connected to the magnet assembly groove, and two bolts are arranged in the two screw holes for tightening the peripheral magnet close to the pressure rod.

[0011] Furthermore, the brand of the intermediate magnet is selected from one of N52 and N56, and the brand of the peripheral magnet is selected from one of N50 and N56.

[0012] Beneficial effects of the present invention: the magnet group in the form of a Halbach array can effectively improve the space utilization rate and the magnetic field distribution is uniform. It is light and compact, and reduces the diffusion of the magnetic field in unnecessary directions. The strong side surface magnetic field strength of the Halbach array magnet group is 1.4 times that of a traditional single magnet of the same volume. Through simulation design, the middle magnet combined with the four outer magnets can reach a surface magnetic gauss of 12500GS, which is 10 times that of an ordinary magnet, and is unlocked faster. In addition, the magnet group is assembled using a self-designed fixture, which can make the magnets accurately arranged, effectively reducing the difficulty and danger of magnet assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the magnet group of the present invention.

[0014] Figure 2 It is a schematic diagram of the magnetization direction of the peripheral magnet of the present invention.

[0015] Figure 3 It is a schematic diagram of the magnetization direction of the intermediate magnet of the present invention.

[0016] Figure 4 It is a schematic diagram of a process fixture structure of the present invention.

[0017] Figure 5 It is a schematic diagram of the structure of the two-step fixture of the present invention.

[0018] Figure 6 It is a schematic diagram of the three-step fixture structure of the present invention.

[0019] Figure 7 It is a schematic diagram of the structure of the four-step fixture of the present invention.

[0020] 1. Magnet group; 2. Middle magnet; 3. Peripheral magnet; 4. First process fixture; 5. Second process fixture; 6. Third process fixture;

[0021] 7. Four-process fixture; 8. Bottom plate; 9. Acrylic cover; 10. Magnet assembly slot; 11. Stopper; 12. Pressure rod; 13. Stopper slot; 14. Pressure rod slot; 15. Bolt one; 16. Screw hole two; 17. Bolt two. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings.

[0023] According to the attached Figure 1-3 As shown: The present invention provides a fast unlocking unlocking device magnet assembly, including a magnet group 1 in a Halbach array, which is used to improve space utilization and reduce the diffusion of the magnetic field in unnecessary directions. The magnet group 1 includes a middle magnet 2 and peripheral magnets 3 distributed around the middle magnet 2. The middle magnet 2 and the peripheral magnet 3 are glued together, and the glue is Loctite AA805 anaerobic glue and 703A / B glue. The unlocking device magnet assembly is assembled by repulsive force, and the magnetic force is divergent. It needs to be glued together with a specific glue, and it is necessary to wait for the glue to be completely cured before subsequent operations. Improper operation may hurt the hands. It is first glued together with anaerobic glue, and then 703A / B needs to be used to apply pressure at the magnet bonding point after being assembled into a finished product to effectively avoid personal injury. The peripheral magnet 3 is N outside and S inside (see the magnetization direction Figure 2 ), the middle magnet 2 is axially magnetized (magnetization direction see Figure 3), the middle magnet 2 is made of one of N52 and N56, and the peripheral magnet 3 is made of one of N50 and N56. The characteristic of Halbach array is to produce the strongest magnetic field with the least magnets. Under the same volume, the strong side surface magnetic field strength of Halbach array magnet group is 1.4 times that of traditional single magnet. The advantages of Halbach are magnetic field enhancement, unidirectional magnetic field characteristics, good magnetic field distribution and uniformity, light and compact. Through simulation design, the middle magnet is combined with the four peripheral magnets. The middle magnet is made of N52, and the surrounding magnets are made of N50. The surface magnetic Gauss can reach 12500GS, which is 10 times that of ordinary magnets. If the customer needs a higher surface magnetic Gauss, the surrounding magnets can use N56 and the middle magnets can use N56.

[0024] As the instruction manual Figure 4-7 As shown: the magnet group 1 is assembled by a first process jig 4, a second process jig 5, a third process jig 6, and a fourth process jig 7, which are used to reduce the difficulty and danger of magnet assembly. The first process jig 4, the second process jig 5, the third process jig 6, and the fourth process jig 7 all include a bottom plate 8, an acrylic cover plate 9 is provided on the top of the bottom plate 8, a magnet assembly groove 10 is opened on the top of the bottom plate 8, a stopper 11 is provided on one side of the magnet assembly groove 10 in the bottom plate 8, and a stopper 11 is provided on the other side of the magnet assembly groove 10 in the bottom plate 8. A pressure rod 12 is provided, a block groove 13 which is connected with the magnet assembly groove 10 and matches the block 11 is provided on one side of the top of the bottom plate 8, a pressure rod groove 14 which is connected with the magnet assembly groove 10 and matches the pressure rod 12 is provided on the other side of the top of the bottom plate 8, bolts 15 which are fixedly connected with the bottom plate 8 are provided at four corners of the acrylic cover plate 9, screw holes 16 which are connected with the magnet assembly groove 10 are symmetrically provided on both side walls of the bottom plate 8, and bolts 17 are provided in the screw holes 16 for clamping the peripheral magnet 3 close to the pressure rod 12.

[0025] The biggest difficulty of the Halbach array is the precise arrangement of magnets and the difficulty and danger of assembly. The present invention adopts a one-step jig 4, a two-step jig 5, a three-step jig 6, and a four-step jig 7 to assemble the magnet group 1 in steps. The single peripheral magnet 3 is assembled with the middle magnet 2 by the one-step jig 4, the two peripheral magnets 3 are assembled with the middle magnet 2 by the two-step jig 5, the three peripheral magnets 3 are assembled with the middle magnet 2 by the three-step jig 6, and the four peripheral magnets 3 are assembled with the middle magnet 2 by the four-step jig 7. Finally, the magnet group 1 in the Halbach array is precisely arranged and assembled, which can effectively reduce the difficulty and danger of magnet assembly.

[0026] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A magnet assembly for a lock opener with fast unlocking, characterized in that: The invention comprises a magnet group (1) in a Halbach array, which is used to improve space utilization and reduce the diffusion of a magnetic field in unnecessary directions. The magnet group (1) comprises a middle magnet (2) and peripheral magnets (3) distributed around the middle magnet (2). The middle magnet (2) and the peripheral magnets (3) are bonded together by glue. The magnet group (1) is assembled by a first-step jig (4), a second-step jig (5), a third-step jig (6) and a fourth-step jig (7), which is used to reduce the difficulty and danger of magnet assembly. The first-step jig (4), the second-step jig (5), the third-step jig (6) and the fourth-step jig (7) all comprise a bottom plate (8). An acrylic cover plate (9) is provided on the top of the bottom plate (8). A magnet assembly groove (10) is provided on the top of the bottom plate (8). A stopper (11) is provided in the bottom plate (8) and is arranged on one side of the magnet assembly groove (10). A pressure rod (12) is provided in the bottom plate (8) and is arranged on the other side of the magnet assembly groove (10).

2. The magnet assembly for a lock opener with fast unlocking according to claim 1, characterized in that: The glue used is Loctite AA805 anaerobic glue and 703A / B glue. The anaerobic glue is first used to bond them together, and then 703A / B needs to be applied to the bonding position of the magnets to maintain pressure after the finished product is assembled.

3. The magnet assembly for unlocking a lock with fast unlocking according to claim 1, characterized in that: The peripheral magnet (3) is N on the outside and S on the inside, and the middle magnet (2) is axially magnetized.

4. The magnet assembly for unlocking a lock with fast unlocking according to claim 1, characterized in that: A block groove (13) which is interlinked with the magnet assembly groove (10) and matches the block (11) is provided on one side of the top of the bottom plate (8), and a pressure rod groove (14) which is interlinked with the magnet assembly groove (10) and matches the pressure rod (12) is provided on the other side of the top of the bottom plate (8).

5. The magnet assembly for a lock opener with fast unlocking according to claim 1, characterized in that: The four corners of the acrylic cover plate (9) are provided with bolts (15) fixedly connected to the bottom plate (8).

6. The magnet assembly for a lock opener with fast unlocking according to claim 1, characterized in that: Two side walls of the bottom plate (8) are symmetrically provided with two screw holes (16) intersecting the magnet assembly groove (10), and two bolts (17) are arranged in the two screw holes (16) for pressing the peripheral magnet (3) close to the pressure rod (12).

7. The magnet assembly for a lock opener with fast unlocking according to claim 1, characterized in that: The middle magnet (2) is made of one of N52 and N56, and the peripheral magnet (3) is made of one of N50 and N56.

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