Permanent magnet products for electromagnetic sensing in blood glucose monitors

By designing an automated inspection system, the problem of product defects caused by magnetic pole disorder in permanent magnet production was solved, achieving efficient inspection and sorting, reducing labor costs, and ensuring accurate labeling of the north and south poles.

CN224519612UActive Publication Date: 2026-07-17DONGGUAN JINCONN NEW MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN JINCONN NEW MATERIAL CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing permanent magnet production process, disordered magnetic pole orientation leads to product defects, and the lack of automated detection and sorting methods increases labor costs.

Method used

A permanent magnet product for electromagnetic sensing in blood glucose monitors was designed. It adopts a fluxmeter, a lifting control box, and a marking control box to realize the automated continuous detection of permanent magnet products. When a lack of magnetization is detected, the products are directly sorted. The product also integrates north and south pole marking functions.

Benefits of technology

It enables efficient and automated testing and sorting of permanent magnet products, reduces labor costs, and ensures accurate labeling of the north and south poles.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a permanent magnet product for electromagnetic sensing in blood glucose monitors, belonging to the technical field of permanent magnet production equipment. The permanent magnet product includes: a mounting plate, with an electric cylinder fixedly mounted on one outer surface of the mounting plate. The output end of the electric cylinder is fixedly connected to a lifting control box. A lifting threaded rod is rotatably connected between the upper and lower inner walls of the lifting control box. A lifting transmission plate is threaded onto the lifting threaded rod, and two lifting transmission rods are fixedly connected to the bottom of the lifting transmission plate. A marking control box is fixedly connected to the lower ends of the two lifting transmission rods. This permanent magnet product for electromagnetic sensing in blood glucose monitors achieves automated continuous detection of permanent magnet products, possessing extremely high detection efficiency. It can also mark the north and south poles of the permanent magnet products. Furthermore, when a product with insufficient magnetization is detected, the marking step is skipped, and the product with insufficient magnetization and qualified products are directly sorted. It integrates multiple functions, significantly reducing labor costs.
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Description

Technical Field

[0001] This utility model relates to the technical field of permanent magnet production equipment, and more specifically, to permanent magnet products for electromagnetic sensing in blood glucose monitors. Background Technology

[0002] A blood glucose monitor is a portable medical device used to measure the concentration of glucose in the blood, typically employing electrochemical or photochemical detection technologies. Its core components include test strips, microelectrode sensors, signal processing circuitry, and a display screen. In a blood glucose monitor, a permanent magnet is primarily used in the electromagnetic induction module to provide a stable background magnetic field for the Hall sensor or magnetoresistive sensor. When the enzyme reaction on the test strip generates a weak current, this current passes through the induction coil, inducing a Lorentz force in the magnetic field formed by the permanent magnet. This alters the magnetic field distribution or generates an induced electromotive force. The sensor detects these changes in magnetic signals, converts them into electrical signals, and then calculates the blood glucose concentration.

[0003] Permanent magnets are functional materials that can maintain their magnetism for a long time without easily demagnetizing. Their internal crystal structure, composed of ferromagnetic elements such as iron, nickel, and cobalt, forms highly ordered magnetic domains. After these magnetic domains are oriented through a magnetization process, they can maintain strong magnetism even after the external magnetic field is removed. Permanent magnets are widely used in motors, sensors, loudspeakers, and other equipment.

[0004] In the precision machining of permanent magnets, multi-pole magnetization is involved. Disordered magnetic pole orientation can lead to defective components. If the magnetic poles are difficult to distinguish, and there is a situation of incomplete magnetization, the magnetic performance will not meet the standards, resulting in a series of problems. Therefore, magnetic performance testing is a crucial link in the production and processing of permanent magnets. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a permanent magnet product for electromagnetic sensing in blood glucose monitors. It can perform automated and continuous detection of permanent magnet products, and can also mark the north and south poles of permanent magnet products. Moreover, when a product with insufficient magnetization is detected, the marking step is skipped, and the product with insufficient magnetization and qualified products are directly sorted. It integrates multiple functions and significantly reduces labor costs.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution:

[0009] Permanent magnet products for electromagnetic sensing in blood glucose monitors include:

[0010] Mounting plate, an electric cylinder is fixedly mounted on one outer surface of the mounting plate, the output end of the electric cylinder is fixedly connected to the lifting control box, a lifting threaded rod is rotatably connected between the upper and lower inner walls of the lifting control box, a lifting transmission plate is threadedly connected to the lifting threaded rod, and two lifting transmission rods are fixedly connected to the bottom of the lifting transmission plate.

[0011] A marking control box is fixedly connected to the lower ends of two lifting transmission rods. A transmission worm gear is rotatably connected between the upper and lower inner walls of the marking control box. A transmission worm is rotatably connected between the two inner walls of the marking control box, and the transmission worm meshes with the transmission worm gear. A rotating plate is rotatably connected to the bottom of the marking control box via a rotating shaft. The rotating plate is fixedly connected to the transmission worm gear via the rotating shaft. Two rod-shaped stamps are fixedly connected to the bottom of the rotating plate.

[0012] A fluxmeter device, wherein the fluxmeter device is fixedly installed on one outer surface of a mounting plate.

[0013] In a preferred embodiment of this utility model, a drive motor is fixedly installed on the top of the lifting control box, and the output end of the drive motor is fixedly connected to the lifting threaded rod.

[0014] As a preferred embodiment of this utility model, a limit rod is fixedly connected between the upper and lower inner walls of the lifting control box, and the lifting transmission plate is slidably sleeved on the limit rod.

[0015] As a preferred embodiment of this utility model, the limiting rod is made of stainless steel.

[0016] As a preferred embodiment of this utility model, a servo motor is fixedly installed on one outer surface of the marking control box, and the output end of the servo motor is fixedly connected to the transmission worm gear.

[0017] As a preferred embodiment of this utility model, an inkpad box is fixedly connected to one outer surface of the mounting plate.

[0018] 3. Beneficial effects

[0019] Compared with existing technologies, this utility model provides a permanent magnet product for electromagnetic sensing in blood glucose monitors, which has the following beneficial effects:

[0020] This blood glucose monitor uses permanent magnet electromagnetic sensors, enabling automated continuous detection of permanent magnet products. It boasts extremely high detection efficiency and can also mark the north and south poles of the permanent magnet products. Furthermore, when a product with insufficient magnetization is detected, the marking step is skipped, and the product with insufficient magnetization is directly sorted with the qualified product. It integrates multiple functions and significantly reduces labor costs. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a bottom view of part of the structure of this utility model;

[0023] Figure 3 This is a sectional view of the lifting control box of this utility model;

[0024] Figure 4 This is a cross-sectional view of the marking control box of this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Mounting plate; 2. Fluxmeter device; 3. Inkpad box; 4. Electric cylinder; 5. Lifting control box; 6. Marking control box; 7. Rotating plate; 8. Rod-shaped stamp; 9. Servo motor; 10. Drive motor; 11. Lifting threaded rod; 12. Lifting transmission plate; 13. Lifting transmission rod; 14. Limit rod; 15. Transmission worm gear; 16. Transmission worm. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Example:

[0029] Please see Figures 1-4 Permanent magnet products for electromagnetic sensing in blood glucose monitors, including:

[0030] Mounting plate 1, an electric cylinder 4 is fixedly mounted on one outer surface of the mounting plate 1, the output end of the electric cylinder 4 is fixedly connected to the lifting control box 5, a lifting threaded rod 11 is rotatably connected between the upper and lower inner walls of the lifting control box 5, a lifting transmission plate 12 is threadedly connected to the lifting threaded rod 11, and two lifting transmission rods 13 are fixedly connected to the bottom of the lifting transmission plate 12.

[0031] A marking control box 6 is fixedly connected to the lower ends of two lifting transmission rods 13. A transmission worm gear 15 is rotatably connected between the upper and lower inner walls of the marking control box 6. A transmission worm 16 is rotatably connected between the two inner walls of the marking control box 6. The transmission worm 16 meshes with the transmission worm gear 15. A rotating plate 7 is rotatably connected to the bottom of the marking control box 6 via a rotating shaft. The rotating plate 7 is fixedly connected to the transmission worm gear 15 via the rotating shaft. Two rod-shaped stamps 8 are fixedly connected to the bottom of the rotating plate 7.

[0032] The fluxmeter device 2 is fixedly installed on one side of the outer surface of the mounting plate 1.

[0033] In a specific embodiment of this utility model, the manufactured permanent magnet product arrives at the probe of the fluxmeter device 2 from the intermittent conveyor. The fluxmeter device 2 detects the polarity of the permanent magnet product near the probe of the fluxmeter device 2. Then, by controlling the rotation of the transmission worm gear 16, the transmission worm wheel 15 rotates by a certain angle, which in turn drives the rotating plate 7 to rotate by a certain angle via the rotating shaft. This aligns the two rod-shaped stamps 8 with the two poles of the permanent magnet product. Next, by controlling the rotation of the lifting threaded rod 11, the lifting transmission plate 12 descends, and the two lifting transmission rods 13 drive the marking control box 6 to descend, allowing the two rod-shaped stamps 8 to mark the north and south poles of the permanent magnet product. Then, the lifting threaded rod 11 is reversed, causing the two rod-shaped stamps 8 to rise. The process continues until the next permanent magnet product moves to the flux meter device 2. If a permanent magnet product is found to have insufficient magnetization, the lifting threaded rod 11 will not be controlled to rotate, and the product will not be marked. This distinguishes the product from other normal products, achieving automated continuous detection of permanent magnet products. It has extremely high detection efficiency and can also mark the north and south poles of the permanent magnet products. Moreover, when a product with insufficient magnetization is detected, the marking step is skipped, and the product with insufficient magnetization is directly sorted with the qualified product. This multi-functional system significantly reduces labor costs.

[0034] Specifically, a drive motor 10 is fixedly installed on the top of the lifting control box 5, and the output end of the drive motor 10 is fixedly connected to the lifting threaded rod 11.

[0035] In this embodiment, the drive motor 10 is started by controlling the lifting threaded rod 11 to rotate.

[0036] Specifically, a limit rod 14 is fixedly connected between the upper and lower inner walls of the lifting control box 5, and the lifting transmission plate 12 is slidably sleeved on the limit rod 14.

[0037] In this embodiment, the limiting rod 14 keeps the lifting transmission plate 12 stable during its up-and-down movement.

[0038] Specifically, the limiting rod 14 is made of stainless steel.

[0039] In this embodiment, the surface of the limiting rod 14 is smooth, and the friction between it and the lifting transmission plate 12 is small.

[0040] Specifically, a servo motor 9 is fixedly installed on one outer surface of the marking control box 6, and the output end of the servo motor 9 is fixedly connected to the transmission worm gear 16.

[0041] In this embodiment, the servo motor 9 is started by controlling the transmission worm gear 16 to rotate.

[0042] Specifically, an inkpad box 3 is fixedly connected to one outer surface of the mounting plate 1.

[0043] In this embodiment, the inkpad box 3 is filled with ink. By controlling the start of the electric cylinder 4, the lifting control box 5 is moved, so that the two rod-shaped stamps 8 move to the upper side of the inkpad box 3. By controlling the start of the drive motor 10, the lifting threaded rod 11 is rotated, so that the lifting transmission plate 12 is driven by the two lifting transmission rods 13.

[0044] Working principle: The produced permanent magnet products arrive at the probe of the fluxmeter device 2 from the intermittent conveyor. The fluxmeter device 2 detects the polarity of the permanent magnet products near the probe. Then, the servo motor 9 is started, driving the transmission worm gear 16 to rotate, which in turn drives the transmission worm wheel 15 to rotate by a certain angle. This, in turn, drives the rotating plate 7 to rotate by a certain angle via the rotating shaft, aligning the two rod-shaped stamps 8 with the two poles of the permanent magnet product. Next, the drive motor 10 is started, driving the lifting threaded rod 11 to rotate, which lowers the lifting transmission plate 12. The two lifting transmission rods 13 lower the marking control box 6, allowing the two rod-shaped stamps 8 to mark the north and south poles of the permanent magnet product. Finally, the lifting threaded rod 11 is reversed, causing the two rod-shaped stamps 8 to rise, awaiting the next permanent magnet product to move to the magnet. The above steps are repeated at two general measurement devices. If a permanent magnet product is found to have insufficient magnetization, the lifting threaded rod 11 will not be controlled to rotate, and the product will not be marked. This distinguishes the product from other normal products, achieving automated continuous detection of permanent magnet products. It has extremely high detection efficiency and can also mark the north and south poles of the permanent magnet products. Moreover, when a product with insufficient magnetization is detected, the marking step is skipped, and the product with insufficient magnetization is directly sorted with qualified products. It integrates multiple functions and greatly reduces labor costs. The control method of this utility model is controlled by manually starting and stopping the switch. The wiring diagram of the power component and the power supply are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A permanent magnet product for electromagnetic sensors of blood glucose monitors, characterized in that, include: Mounting plate (1), an electric cylinder (4) is fixedly mounted on one side of the outer surface of the mounting plate (1), the output end of the electric cylinder (4) is fixedly connected to the lifting control box (5), a lifting threaded rod (11) is rotatably connected between the upper and lower inner walls of the lifting control box (5), a lifting transmission plate (12) is threadedly connected to the lifting threaded rod (11), and two lifting transmission rods (13) are fixedly connected to the bottom of the lifting transmission plate (12); A marking control box (6) is fixedly connected to the lower ends of two lifting transmission rods (13). A transmission worm gear (15) is rotatably connected between the upper and lower inner walls of the marking control box (6). A transmission worm (16) is rotatably connected between the two inner walls of the marking control box (6). The transmission worm (16) meshes with the transmission worm gear (15). A rotating plate (7) is rotatably connected to the bottom of the marking control box (6) via a rotating shaft. The rotating plate (7) is fixedly connected to the transmission worm gear (15) via a rotating shaft. Two rod-shaped stamps (8) are fixedly connected to the bottom of the rotating plate (7). A fluxmeter device (2) is fixedly installed on one side of the outer surface of the mounting plate (1).

2. The electromagnetic sensor for blood glucose monitor according to claim 1, characterized in that: A drive motor (10) is fixedly installed on the top of the lifting control box (5), and the output end of the drive motor (10) is fixedly connected to the lifting threaded rod (11).

3. The electromagnetic sensor for blood glucose monitor according to claim 1, characterized in that: A limit rod (14) is fixedly connected between the upper and lower inner walls of the lifting control box (5), and the lifting transmission plate (12) is slidably sleeved on the limit rod (14).

4. The electromagnetic sensor for blood glucose monitor according to claim 3, characterized in that: The limiting rod (14) is made of stainless steel.

5. The electromagnetic sensor for blood glucose monitor according to claim 1, characterized in that: A servo motor (9) is fixedly installed on one side of the outer surface of the marking control box (6), and the output end of the servo motor (9) is fixedly connected to the transmission worm gear (16).

6. The permanent magnet product for electromagnetic sensing in a blood glucose monitor according to claim 1, characterized in that: An inkpad box (3) is fixedly connected to one outer surface of the mounting plate (1).