High-frequency high-temperature sensing magnetic ring

Abstract

The utility model relates to the technical field of sensing magnetic rings, and discloses a high-frequency high-temperature sensing magnetic ring, which comprises a sensing magnetic ring, the surface of the sensing magnetic ring is provided with an enameled wire, and the surface of the enameled wire is sleeved with a clamp, a moving ring, special-shaped teeth and a tip. According to the utility model, the structure is reasonable, the insulating ceramic layer with the thickness of 0.1 mm is embedded into the sensing magnetic ring, the honeycomb-shaped partition is formed by laser etching, and the high-frequency magnetic field distortion is reduced by adopting radial and tangential composite magnetizing, so that the high-frequency magnetic field distortion is reduced by adopting a gradient magnetic powder distribution technology and adopting high-coercivity neodymium iron boron in a core area; after the sensing magnetic ring and the enamelled wire are installed, the enamelled wire is wrapped by the movable ring by pulling the movable ring, then the pointed end is inserted into the limiting seat, and due to the cooperation of the special-shaped teeth and the limiting teeth, the movable ring cannot be withdrawn again after penetrating through the limiting seat, so that the magnetic field performance attenuation is reduced; therefore, the movable ring coated with the enameled wire can be limited.

Description

Technical Field

[0001] This utility model relates to the field of sensing magnetic ring technology, specifically a high-frequency high-temperature sensing magnetic ring. Background Technology

[0002] The demand for high-temperature stability (120℃+) and high-frequency response (>10kHz) of magnetic rings is surging in variable-frequency home appliances (such as air conditioner compressors) and new energy vehicle motors. Existing ferrite materials suffer from magnetic performance degradation under extreme operating conditions.

[0003] However, existing devices do not solve the problem of magnetic field performance degradation of ferrite materials under extreme working conditions. After a period of use, the enameled wires on the sensing magnetic ring are prone to displacement due to prolonged exposure to high frequency and high temperature environments, which affects the normal use of the sensing magnetic ring. Therefore, we propose a new device to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a high-frequency, high-temperature sensing magnetic ring that solves the problem of magnetic field performance degradation in existing ferrite materials under extreme operating conditions.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-frequency high-temperature sensing magnetic ring, comprising a sensing magnetic ring, the surface of which is provided with an enameled wire, a clamp is sleeved on the surface of the enameled wire, a movable ring is slidably connected inside the clamp, one side of the movable ring is provided with irregular teeth, the other side of the movable ring is provided with a pointed tip, the surface of the clamp is provided with a limiting seat, the inside of the limiting seat is provided with limiting teeth, and the surface of the clamp is provided with a collecting group;

[0008] The sensing magnetic ring includes a core, an intermediate layer, and an outer covering. The surface of the core is provided with an intermediate layer, and the surface of the intermediate layer is provided with an outer covering.

[0009] Optionally, the core is made of neodymium iron boron, the intermediate layer is made of ferrite, and the outer layer is coated with modified ferrite.

[0010] Optionally, a limiting groove is provided inside the limiting seat, and the limiting seat is slidably connected to the moving ring through the limiting groove.

[0011] Optionally, the number of the irregular teeth is several, and the irregular teeth are adapted to the limiting teeth.

[0012] Optionally, the collection assembly includes a collection seat, a fixing box, a limiting rod, a spring, and a fixing pin. The fixing box is fixedly connected to one side of the collection seat. The limiting rod is slidably connected inside the fixing box. A spring is sleeved on the surface of the limiting rod. The fixing pin is slidably connected to the surface of the limiting rod.

[0013] Optionally, the fixing box has a groove inside, and the fixing box is fixedly connected to one end of the spring through the groove.

[0014] Optionally, the collection seat has a hole inside, and the collection seat is slidably connected to the fixing pin through the hole.

[0015] In summary, the technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model has a reasonable structure. By embedding a 0.1 mm thick insulating ceramic layer inside the sensing magnetic ring, and using laser etching to form a honeycomb-shaped partition, and employing radial and tangential composite magnetization, high-frequency magnetic field distortion is reduced. This reduces the magnetic field performance degradation that occurs with existing ferrite materials under extreme working conditions. It achieves the effect of reducing magnetic field performance degradation by using gradient magnetic powder distribution technology, employing high-coercivity NdFeB in the core area, and using low-cost ferrite in the outer layer. After the sensing magnetic ring and enameled wire are installed, pulling the moving ring causes it to wrap around the enameled wire. Then, inserting the pointed end into the limiting seat, the movement of the moving ring through the limiting seat due to the cooperation of the shaped teeth and the limiting teeth prevents it from retracting, thus ensuring proper wrapping. The enameled wire is used to limit the movement of the moving ring, reducing the likelihood of the enameled wire on the sensing magnetic ring shifting after a period of use due to prolonged exposure to high frequency and high temperature, which could affect the normal operation of the sensing magnetic ring. This achieves the effect of limiting the movement of the enameled wire after installation, preventing it from shifting. The excess moving ring is inserted into the collection base. After insertion, pulling the limiting rod causes the spring to contract, releasing the limiting rod from the fixing pin. Pressing the fixing pin then forces it through the collection base and the moving ring, thus fixing the moving ring in place. This completes the collection and fixation of the excess moving ring. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the core planar structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the planar structure of the clamp of this utility model;

[0020] Figure 4 This is a schematic diagram of the planar structure of the collection seat of this utility model.

[0021] In the diagram: 1. Sensing magnetic ring; 101. Core; 102. Intermediate layer; 103. Outer layer coating; 2. Enameled wire; 3. Clamp; 4. Moving ring; 5. Irregular tooth; 6. Pointed tip; 7. Limiting seat; 8. Limiting tooth; 9. Collection group; 901. Collection seat; 902. Fixing box; 903. Limiting rod; 904. Spring; 905. Fixing pin. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Reference Figures 1-4 The high-frequency high-temperature sensing magnetic ring shown includes a sensing magnetic ring 1, an enameled wire 2 on the surface of the sensing magnetic ring 1, a clamp 3 sleeved on the surface of the enameled wire 2, a movable ring 4 slidably connected inside the clamp 3, a non-shaped tooth 5 on one side of the movable ring 4, a pointed tip 6 on the other side, a limiting seat 7 on the surface of the clamp 3, a limiting tooth 8 inside the limiting seat 7, and a collecting group 9 on the surface of the clamp 3. The sensing magnetic ring 1 includes a core 101, an intermediate layer 102 and an outer covering 103. The intermediate layer 102 is provided on the surface of the core 101, and the outer covering 103 is provided on the surface of the intermediate layer 102.

[0024] As a preferred embodiment of this example, Figures 1-4As shown, the surface of the sensing magnetic ring 1 is provided with enameled wire 2. The sensing magnetic ring 1 includes a core 101, an intermediate layer 102, and an outer covering 103. The surface of the core 101 is provided with the intermediate layer 102, and the surface of the intermediate layer 102 is provided with the outer covering 103. The core 101 is made of neodymium iron boron, the intermediate layer 102 is made of ferrite, and the outer covering 103 is made of modified ferrite. A clamp 3 is sleeved on the surface of the enameled wire 2. A moving ring 4 is slidably connected inside the clamp 3. One side of the moving ring 4 is provided with irregular teeth 5, and the other side of the moving ring 4 is provided with a pointed tip 6. The surface of the clamp 3 is provided with a limiting seat 7. A limiting groove is formed inside the limiting seat 7. The limiting seat 7 is slidably connected to the moving ring 4 through the limiting groove. The limiting seat 7 is provided with limiting teeth 8. The number of irregular teeth 5 is... The quantity is several, with the irregular teeth 5 and the limiting teeth 8 mutually adapted. The surface of the clamp 3 is provided with a collection group 9, which includes a collection seat 901, a fixing box 902, a limiting rod 903, a spring 904, and a fixing pin 905. The fixing box 902 is fixedly connected to one side of the collection seat 901. The limiting rod 903 is slidably connected inside the fixing box 902. The spring 904 is sleeved on the surface of the limiting rod 903. The fixing pin 905 is slidably connected to the surface of the limiting rod 903. A groove is opened inside the fixing box 902, and the fixing box 902 is fixedly connected to one end of the spring 904 through the groove. A hole is opened inside the collection seat 901, and the collection seat 901 is slidably connected to the fixing pin 905 through the hole. During use, the proportion of the core 101 is %. 45. The middle layer 102 accounts for 30%, and the outer layer 103 accounts for 25%. A 0.1 mm thick insulating ceramic layer is embedded inside the sensing magnetic ring 1. A honeycomb-shaped partition is formed using laser etching. Radial and tangential composite magnetization is employed to reduce high-frequency magnetic field distortion and minimize the magnetic field performance degradation of existing ferrite materials under extreme operating conditions. This achieves the effect of reducing magnetic field performance degradation by using gradient magnetic powder distribution technology, employing high-coercivity NdFeB in the core area, and using low-cost ferrite in the outer layer. After the sensing magnetic ring 1 and enameled wire 2 are installed, the moving ring 4 is pulled to cover the enameled wire 2. Then, the pointed end 6 is inserted into the limiting seat 7. Due to the cooperation of the irregular teeth 5 and the limiting teeth 7, the moving ring... After the 4-pin limit seat 8 is inserted, it cannot be retracted, thus limiting the movement ring 4 after the enameled wire 2 is covered. This reduces the possibility that the enameled wire 2 on the sensing magnetic ring 1 may shift after a period of use due to prolonged exposure to high frequency and high temperature, which could affect the normal operation of the sensing magnetic ring 1. This achieves the effect of covering and limiting the enameled wire 2 after the sensing magnetic ring 1 and the enameled wire 2 are installed, preventing it from shifting. By inserting the excess movement ring 4 into the collecting seat 901, and then pulling the limiting rod 903, the spring 904 contracts, causing the limiting rod 903 to release the limitation on the fixing pin 905. Finally, by pressing the fixing pin 905...The fixing pin 905 passes through the collecting base 901 and the moving ring 4, thereby fixing the moving ring 4 and completing the collection and fixing of excess moving rings 4.

[0025] The working principle of this practical application is as follows:

[0026] During use, a 0.1 mm thick insulating ceramic layer is embedded inside the sensing magnetic ring 1. A honeycomb-shaped partition is formed using laser etching. Radial and tangential composite magnetization is employed to reduce high-frequency magnetic field distortion. After the sensing magnetic ring 1 and enameled wire 2 are installed, the moving ring 4 is pulled to wrap around the enameled wire 2. The pointed end 6 is then inserted into the limiting seat 7. Due to the cooperation between the shaped teeth 5 and the limiting teeth 7, the moving ring 4, after passing through the limiting seat 8, cannot be retracted, thus limiting the moving ring 4 after wrapping the enameled wire 2. The excess moving ring 4 is then inserted into the collecting seat 901. After inserting the excess moving ring 4 into the collecting seat 901, pulling the limiting rod 903 causes the spring 904 to contract, releasing the limiting rod 903 from limiting the fixing pin 905. Pressing the fixing pin 905 then causes it to pass through the collecting seat 901 and the moving ring 4, thus fixing the moving ring 4. This completes the collection and fixing of the excess moving ring 4.

[0027] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-frequency, high-temperature sensing magnetic ring, comprising a sensing magnetic ring (1), characterized in that: The surface of the sensing magnetic ring (1) is provided with enameled wire (2), and a clamp (3) is sleeved on the surface of the enameled wire (2). A movable ring (4) is slidably connected inside the clamp (3). A special tooth (5) is provided on one side of the movable ring (4), and a pointed tip (6) is provided on the other side. A limiting seat (7) is provided on the surface of the clamp (3), and a limiting tooth (8) is provided inside the limiting seat (7). A collection group (9) is provided on the surface of the clamp (3). The sensing magnetic ring (1) includes a core (101), an intermediate layer (102) and an outer covering (103). The surface of the core (101) is provided with the intermediate layer (102), and the surface of the intermediate layer (102) is provided with the outer covering (103).

2. The high-frequency high-temperature sensing magnetic ring according to claim 1, characterized in that: The core (101) is made of neodymium iron boron, the intermediate layer (102) is made of ferrite, and the outer coating (103) is made of modified ferrite.

3. The high-frequency high-temperature sensing magnetic ring according to claim 1, characterized in that: The limiting seat (7) has a limiting groove inside, and the limiting seat (7) is slidably connected to the moving ring (4) through the limiting groove.

4. The high-frequency high-temperature sensing magnetic ring according to claim 1, characterized in that: The number of the irregular teeth (5) is several, and the irregular teeth (5) are adapted to the limiting teeth (8).

5. The high-frequency high-temperature sensing magnetic ring according to claim 1, characterized in that: The collection group (9) includes a collection seat (901), a fixing box (902), a limiting rod (903), a spring (904), and a fixing pin (905). The fixing box (902) is fixedly connected to one side of the collection seat (901). The limiting rod (903) is slidably connected inside the fixing box (902). The spring (904) is sleeved on the surface of the limiting rod (903). The fixing pin (905) is slidably connected to the surface of the limiting rod (903).

6. A high-frequency high-temperature sensing magnetic ring according to claim 5, characterized in that: The fixed box (902) has a groove inside, and the fixed box (902) is fixedly connected to one end of the spring (904) through the groove.

7. A high-frequency high-temperature sensing magnetic ring according to claim 5, characterized in that: The collection seat (901) has a hole inside, and the collection seat (901) is slidably connected to the fixing pin (905) through the hole.

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