Modular Hall current sensor structure
Through a modular design, the use of removable magnetic ring assembly and adjustable sliding assembly solves the problem of sensor replacement to accommodate wires in different diameters, achieving higher adaptability and economicality.
Patent Information
- Application Number
- CN202420692641.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-07
AI Technical Summary
Existing perforated Hall current sensors need to replace different sensor models when detecting wire currents of different diameters, resulting in poor economicality.
A modular Hall current sensor structure is designed, including a removable connected magnetic ring assembly and an adjustable position sliding assembly to match wires of different sizes by replacing the magnetic ring assembly.
Without replacing the entire sensor, the sensor is adapted to multiple sizes of wires, which improves the adaptability of the sensor and reduces the replacement cost.
Smart Images
Figure CN222461552U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sensors, in particular to a modular Hall current sensor structure. Background Art
[0002] The Hall current sensor is based on the magnetic balance Hall principle. According to the Hall effect principle, a current Ic is passed through the control current end of the Hall element, and a magnetic field with a magnetic induction intensity of B is applied in the normal direction of the Hall element plane. Then, an electric potential VH will be generated perpendicular to the current and magnetic field direction (i.e., between the Hall output ends), which is called the Hall potential, and its magnitude is proportional to the control current I.
[0003] The perforated Hall current sensor detects the current flowing through the wire by passing the wire through the input perforation of the Hall current sensor. However, due to the different diameters of the wires, an input perforation that is too large will cause the sensor's detection accuracy to decrease. Therefore, the requirements for Hall current sensors for wires of different diameters are also different and cannot be shared, resulting in poor versatility of the Hall current sensor. At the same time, replacing the entire sensor will increase costs, resulting in poor application economy. Utility Model Content
[0004] In order to solve the technical problems in the prior art that different sensor models need to be replaced when the perforated Hall current sensor detects the current of wires with different diameters, resulting in poor economy, the utility model provides a modular Hall current sensor structure.
[0005] The technical solution of the utility model to solve the above technical problems is as follows:
[0006] A modular Hall current sensor structure comprises a shell, the shell is provided with a mounting groove, the bottom of the mounting groove is provided with a first wire through-hole, the first wire through-hole is a through-hole; a magnetic ring assembly and a sliding assembly are provided in the mounting groove, the magnetic ring assembly is detachably connected to the shell, a circuit board is provided on the sliding assembly, and a Hall element is provided on the circuit board; the Hall element is connected to the shell through the sliding assembly, and the sliding assembly is used to change the relative position between the Hall element and the magnetic ring assembly.
[0007] The beneficial effects of the utility model are as follows: by arranging the magnetic ring assembly as a detachable connection and arranging the circuit board on the sliding assembly with an adjustable position, the magnetic ring assembly can be easily replaced, and the relative position between the Hall element and the magnetic ring assembly can be adjusted according to the size of the replaced magnetic ring group, so that the matching of wires of different sizes can be achieved by replacing the magnetic ring assembly; therefore, the utility model can make the sensor adapt to wires of various sizes without replacing the entire sensor, thereby improving the adaptability of the sensor.
[0008] On the basis of the above technical solution, the present invention can also be improved as follows.
[0009] Furthermore, the magnetic ring assembly includes a magnetic ring fixing block detachably connected to the shell, the magnetic ring fixing block is provided with an annular groove and a second wire through-hole concentric with the annular groove, the second wire through-hole is a through hole, and the second wire through-hole is also concentric with the first wire through-hole; a magnet is embedded in the annular groove, a first notch is opened on the magnet, a second notch corresponding to the first notch is opened on the annular groove, and the Hall element passes through the second notch and is interlaced with the first notch to match.
[0010] Furthermore, the sliding assembly is specifically a linear slide rail assembly, which includes two parallel linear guide rails and a sliding plate located between the two linear guide rails, each of the linear guide rails is fixedly connected to the shell, each of the linear guide rails is provided with a slider, and each of the sliders is fixedly connected to the sliding plate.
[0011] Furthermore, each of the linear guide rails is provided with a T-slot, and the slider is a T-slot matching the T-slot.
[0012] Furthermore, a position adjustment device is also provided in the installation groove, and the position adjustment device includes a fixing component and a position adjustment component, the fixing component is fixedly connected to the housing, and the position adjustment component is fixedly connected to the sliding plate.
[0013] The beneficial effect of adopting the above further solution is that, by providing an adjustment device, the position of the sliding plate can be adjusted to facilitate the adaptation of the Hall element and the magnetic ring assembly.
[0014] Furthermore, the fixing assembly includes a fixing block, the bottom end of which is fixedly connected to the shell, the top end of the fixing block is provided with an adjusting groove, the adjusting groove passes through the fixing block, the side of the fixing block is provided with a screw through hole, the screw through hole passes through the fixing block and is connected to the adjusting groove; the position adjustment assembly includes an adjusting screw and an adjusting nut, one end of the adjusting screw is fixedly connected to the sliding plate, the other end of the adjusting screw is inserted and matched with the screw through hole, the adjusting nut is located in the adjusting groove, and the adjusting screw and the adjusting nut are threadedly connected.
[0015] Furthermore, an elastic component is sleeved on the adjusting screw, and the elastic component is located in the adjusting groove.
[0016] The beneficial effect of adopting the above further solution is that, by providing an elastic component, the adjusting nut can receive a pre-tightening force to prevent the adjusting nut from rotating at will.
[0017] Furthermore, the other end of the adjusting screw is fixedly connected to a limiting block, and the elastic component is a spring or an elastic gasket.
[0018] The beneficial effect of adopting the above further solution is that the setting of the limit block can prevent the adjusting screw from falling off the fixing block.
[0019] Furthermore, a wrench matching hole with a regular hexagonal structure is provided on the limit block, and a wrench passing hole is also provided on the shell. The wrench passing hole is connected to the mounting groove, and the center line of the wrench passing hole coincides with the center line of the wrench matching hole.
[0020] The beneficial effect of adopting the above further scheme is that by providing a wrench matching hole with a regular hexagonal structure on the limit block, an internal hexagonal wrench can be used to pass through the wrench hole and match with the wrench matching hole, and the adjusting screw can be turned by turning the internal hexagonal wrench to adjust the position of the circuit board.
[0021] Furthermore, a cover plate is provided at the slot of the mounting slot, and the cover plate is detachably connected to the shell by screws. A third line through-hole is opened on the cover plate, and the third line through-hole is a through-hole, and the center line of the third line through-hole coincides with the center line of the first line through-hole.
[0022] The beneficial effect of adopting the above further solution is that by providing a cover plate, the circuit board in the installation groove can be better protected. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the structure of the utility model;
[0024] Figure 2 is a schematic diagram of the structure of the shell;
[0025] Figure 3 It is a structural schematic diagram of the magnetic ring assembly;
[0026] Figure 4 is a cross-sectional view of a sliding assembly;
[0027] Figure 5 is a structural schematic diagram of a position adjustment device;
[0028] Figure 6 It is an exploded schematic diagram of the position adjustment device;
[0029] Figure 7 It is a schematic diagram of the structure of the cover plate.
[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0031] 1-housing, 2-mounting groove, 3-magnetic ring fixing block, 4-magnet, 5-first line through hole, 6-Hall element, 7-circuit board, 8-linear guide, 9-sliding plate, 10-fixed block, 11-adjusting groove, 12-adjusting nut, 13-adjusting screw, 14-limiting block, 15-screw through hole, 16-elastic member, 17-cover plate, 18-third line through hole, 19-second line through hole, 20-second notch, 21-first notch. DETAILED DESCRIPTION
[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0033] like Figure 1 As shown, this embodiment provides a modular Hall current sensor structure, including a housing 1, the housing 1 is provided with a mounting groove 2, the bottom of the mounting groove 2 is provided with a first wire through-hole 5, and the first wire through-hole 5 is a through-hole; a magnetic ring assembly and a sliding assembly are provided in the mounting groove 2, the magnetic ring assembly is detachably connected to the housing 1, a circuit board 7 is provided on the sliding assembly, and a Hall element 6 is provided on the circuit board 7; the Hall element 6 is connected to the housing 1 through the sliding assembly, and the sliding assembly is used to change the relative position between the Hall element 6 and the magnetic ring assembly. When current detection is required for wires of different diameters, only the matching wire through-hole magnetic ring assembly needs to be replaced. Since the cost of replacing the magnetic ring assembly is more economical than replacing the entire current sensor, the application of sensors that adapt to wires of various diameters by replacing the magnetic ring assembly is more extensive and more economical.
[0034] like Figure 2 As shown, the first wire through hole 5 is located at the bottom of the installation groove 2, and the first wire through hole 5 is located at the upper part of the installation groove 2 to facilitate the installation of the magnetic ring assembly. The aperture of the first wire through hole 5 needs to be greater than or equal to the aperture of the second wire through hole 19 on the magnetic ring assembly.
[0035] like Figure 3As shown, the magnetic ring assembly includes a magnetic ring fixing block 3 detachably connected to the housing 1, and the magnetic ring fixing block 3 is provided with an annular groove and a second wire through hole 19 concentric with the annular groove, and the second wire through hole 19 is a through hole, and the second wire through hole 19 is also concentric with the first wire through hole 5; a magnet 4 is embedded in the annular groove, and a first notch 21 is provided on the magnet 4, and a second notch 20 corresponding to the first notch 21 is provided on the annular groove, and the Hall element 6 passes through the second notch 20 and intersects with the first notch 21. The first notch 21 is connected with the second notch 20, and the two sides of the first notch 21 and the second notch 20 are aligned with each other, and the first notch 21 is a rectangular opening, which is convenient for inserting the Hall element 6.
[0036] like Figure 4 As shown, the sliding assembly is specifically a linear slide rail assembly, which includes two parallel linear guide rails 8 and a sliding plate 9 located between the two linear guide rails 8, each of the linear guide rails 8 is fixedly connected to the housing 1, and each of the linear guide rails 8 is provided with a slider, and each of the sliders is fixedly connected to the sliding plate 9.
[0037] Specifically, each of the linear guide rails 8 is provided with a T-slot, and the slider is a T-slot that matches the T-slot. The T-slot of the linear guide rail 8 located on the left side of the sliding plate 9 is opened on the right side of the linear guide rail 8, and the T-slot of the linear guide rail 8 located on the right side of the sliding plate 9 is opened on the left side of the linear guide rail 8. T-slots are welded on both sides of the sliding plate 9, and the T-slots on the left and right sides of the sliding plate 9 are respectively matched with the T-slots on the two linear guide rails 8. The two linear guide rails 8 can be fixedly connected or detachably connected to the housing 1 by screws.
[0038] like Figure 4 As shown, a position adjustment device is also provided in the mounting groove 2, and the position adjustment device includes a fixing component and a position adjustment component, the fixing component is fixedly connected to the housing 1, and the position adjustment component is fixedly connected to the sliding plate 9. By providing the adjustment device, the position of the sliding plate 9 can be adjusted, so that the Hall element and the magnetic ring component can be adapted.
[0039] like Figure 5As shown, the fixing assembly includes a fixing block 10, the bottom end of which is fixedly connected to the shell 1, the top end of the fixing block 10 is provided with an adjusting groove 11, the adjusting groove 11 passes through the fixing block 10, and the side of the fixing block 10 is provided with a screw through hole 15, the screw through hole 15 passes through the fixing block 10 and is connected with the adjusting groove 11; the position adjustment assembly includes an adjusting screw 13 and an adjusting nut 12, one end of the adjusting screw 13 is fixedly connected to the sliding plate 9, the other end of the adjusting screw 13 is inserted and matched with the screw through hole 15, the adjusting nut 12 is located in the adjusting groove 11, and the adjusting screw 13 is connected to the adjusting nut 12 by threads. Since the adjusting nut 12 is located in the adjusting groove 11, when the adjusting nut 12 is turned, the adjusting screw 13 that matches the thread of the adjusting nut 12 will telescope, thereby adjusting the position of the sliding plate 9 at one end of the adjusting screw 13. At the same time, in order to ensure that the Hall element can smoothly enter and exit the first notch 21 during the adjustment process, the depth direction of the first notch 21 is consistent with the length direction of the adjusting screw 13 or both sides of the first notch 21 are parallel to the axial center line of the adjusting screw 13.
[0040] like Figure 6 As shown, the adjusting screw 13 is also sleeved with an elastic member 16, and the elastic member 16 is located in the adjusting groove 11. By providing the elastic member 16, the adjusting nut 12 can receive a pre-tightening force to prevent the adjusting nut 12 from rotating at will. The other end of the adjusting screw 13 is fixedly connected to a limiting block 14, and the elastic member 16 is a spring or an elastic gasket. The limiting block 14 can be set as a cylindrical structure, the limiting block 14 can be integrated with the adjusting screw 13, and the diameter of the limiting block 14 is larger than the diameter of the screw through hole 15. By providing the limiting block 14, the adjusting screw 13 can be prevented from falling off from the fixed block 10. The limiting block 14 is provided with a wrench matching hole with a regular hexagonal structure, and the housing 1 is also provided with a wrench through hole, the wrench through hole is connected to the mounting groove 2, and the center line of the wrench through hole coincides with the center line of the wrench matching hole. By providing a wrench matching hole with a regular hexagonal structure on the limit block 14, a hexagonal wrench can be passed through the wrench hole and matched with the wrench matching hole, and the adjusting screw can be screwed by turning the hexagonal wrench to adjust the position of the circuit board.
[0041] like Figure 7As shown, the slot of the mounting slot 2 is provided with a cover plate 17, and the cover plate 17 is detachably connected to the housing 1 by screws. The cover plate 17 is provided with a third line through hole 18, and the third line through hole 18 is a through hole, and the center line of the third line through hole 18 coincides with the center line of the first line through hole 5. By providing the cover plate 17, the circuit board in the mounting slot 2 can be better protected. The diameter of the third line through hole 18 is equal to the diameter of the first line through hole 5. The cover plate 17 can also be detachably connected to the housing 1 by a through-clip connection.
[0042] The utility model arranges the magnetic ring component in a detachable connection, arranges the circuit board 7 on a sliding component with an adjustable position, and can easily replace the magnetic ring component, and then adjust the relative position between the Hall element 6 and the magnetic ring component according to the size of the replaced magnetic ring group, thereby matching wires of different sizes by replacing the magnetic ring component; therefore, the sensor can be adapted to wires of various sizes without replacing the entire sensor, thereby improving the adaptability of the sensor.
[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the concept and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A modular Hall current sensor structure, characterized in that: The invention comprises a shell (1), wherein the shell (1) is provided with a mounting groove (2), wherein the bottom of the mounting groove (2) is provided with a first wire through hole (5), wherein the first wire through hole (5) is a through hole; wherein a magnetic ring component and a sliding component are provided in the mounting groove (2), wherein the magnetic ring component is detachably connected to the shell (1), wherein a circuit board (7) is provided on the sliding component, wherein a Hall element (6) is provided on the circuit board (7); wherein the Hall element (6) is connected to the shell (1) via the sliding component, wherein the sliding component is used to change the relative position between the Hall element (6) and the magnetic ring component.
2. The modular Hall current sensor structure according to claim 1, characterized in that: The magnetic ring assembly comprises a magnetic ring fixing block (3) detachably connected to the housing (1); the magnetic ring fixing block (3) is provided with an annular groove and a second wire through hole (19) cocentric with the annular groove; the second wire through hole (19) is a through hole; the second wire through hole (19) is also cocentric with the first wire through hole (5); a magnet (4) is embedded in the annular groove; a first notch (21) is provided on the magnet (4); a second notch (20) corresponding to the first notch (21) is provided on the annular groove; the Hall element (6) passes through the second notch (20) and is interlaced and matched with the first notch (21).
3. The modular Hall current sensor structure according to claim 2, characterized in that: The sliding assembly is specifically a linear slide rail assembly, which comprises two linear guide rails (8) arranged in parallel and a sliding plate (9) located between the two linear guide rails (8), each of the linear guide rails (8) is fixedly connected to the housing (1), each of the linear guide rails (8) is provided with a slider, and each of the sliders is fixedly connected to the sliding plate (9).
4. The modular Hall current sensor structure according to claim 3, characterized in that: Each of the linear guide rails (8) is provided with a T-shaped slot, and the slide block is a T-shaped slide block matching the T-shaped slot.
5. The modular Hall current sensor structure according to claim 4, characterized in that: A position adjustment device is also provided in the installation groove (2), and the position adjustment device comprises a fixing component and a position adjustment component, the fixing component is fixedly connected to the housing (1), and the position adjustment component is fixedly connected to the sliding plate (9).
6. The modular Hall current sensor structure according to claim 5, characterized in that: The fixing assembly comprises a fixing block (10), the bottom end of the fixing block (10) is fixedly connected to the housing (1), the top end of the fixing block (10) is provided with an adjusting groove (11), the adjusting groove (11) passes through the fixing block (10), the side of the fixing block (10) is provided with a screw through hole (15), the screw through hole (15) passes through the fixing block (10) and is connected to the adjusting groove (11); the position adjustment assembly comprises an adjusting screw (13) and an adjusting nut (12), one end of the adjusting screw (13) is fixedly connected to the sliding plate (9), the other end of the adjusting screw (13) is inserted and matched with the screw through hole (15), the adjusting nut (12) is located in the adjusting groove (11), and the adjusting screw (13) and the adjusting nut (12) are connected by threads.
7. The modular Hall current sensor structure according to claim 6, characterized in that: An elastic component (16) is also sleeved on the adjusting screw rod (13), and the elastic component (16) is located in the adjusting groove (11).
8. The modular Hall current sensor structure according to claim 7, characterized in that: The other end of the adjusting screw rod (13) is fixedly connected to a limiting block (14), and the elastic component (16) is a spring or an elastic gasket.
9. The modular Hall current sensor structure according to claim 8, characterized in that: The limit block (14) is provided with a wrench matching hole of a regular hexagonal structure, and the housing (1) is also provided with a wrench through hole, the wrench through hole is connected to the mounting groove (2), and the center line of the wrench through hole coincides with the center line of the wrench matching hole.
10. The modular Hall current sensor structure according to any one of claims 1 to 9, characterized in that: The slot opening of the mounting slot (2) is provided with a cover plate (17), the cover plate (17) is detachably connected to the housing (1) via screws, a third line through hole (18) is provided on the cover plate (17), the third line through hole (18) is a through hole, and the center line of the third line through hole (18) coincides with the center line of the first line through hole (5).