Hall sensor structure with low cost and wide bandwidth

Abstract

The utility model discloses a Hall sensor structure with low cost and wide bandwidth, which comprises a shell, a magnetic core and a Hall element, the magnetic core and the Hall element are positioned in the shell, the shell is fixed on a mounting column, the mounting column is arranged on a placement table, a positioning groove is arranged in the placement table, the mounting column is inserted in the positioning groove, and the Hall element is arranged in the positioning groove. A positioning groove is formed in the mounting column, a plurality of sliding grooves are formed in the positioning groove, a positioning assembly is arranged in each sliding groove in a sliding mode, a plurality of positioning holes allowing the positioning assemblies to be connected in an inserted mode are formed in the mounting column, each positioning assembly is connected with the containing table through a second spring, and each positioning assembly is connected to a limiting releasing assembly. And the limiting releasing assembly is fixed on the driving assembly, and the driving assembly is rotatably mounted on the placement table, so that the functions of quickly dismounting and mounting the shell are added, the Hall sensor can be quickly mounted, dismounted and maintained, and the efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensors, and relates to a Hall sensor structure with low cost and wide bandwidth. Background Art

[0002] A sensor is a detection device that can detect relevant information of the device to be detected and convert it into an electrical signal or other required forms of information output according to certain rules to meet requirements such as information transmission, processing, storage, display, recording, and control. Sensors have a very wide range of applications and provide essential technical support for instrumentation equipment. A Hall current sensor is a current detection component that uses the Hall effect principle to isolate and detect the primary current. The magnetic field generated by the primary current is collected by a magnetic concentrating ring, and the Hall element placed in the magnetic concentrating ring collects this magnetic field to generate a Hall voltage proportional to the primary magnetic field. By measuring the magnitude of this Hall voltage, the isolation detection of the primary current can be achieved;

[0003] "Wide bandwidth" means that the sensor can effectively respond to a relatively wide frequency range.

[0004] The Chinese utility model patent with the application number 201821149577.9 discloses a Hall current sensor, which includes a housing and a magnetic core, a coil, and a Hall element located inside the housing. The middle of the housing has an input perforation, the magnetic core has an air gap, the Hall element is arranged at the air gap position on the magnetic core, the coil is wound around the magnetic core, and a magnetic core housing is provided outside the magnetic core around the coil. The housing also includes a current converter, which is electrically connected to the coil and the Hall element. The current converter is also connected to a wiring terminal through a wire, and the wiring terminal extends out of the housing. The current converter has a semi-circular housing and is located above the magnetic core inside the housing. The periphery of the magnetic core is sprayed with insulating paint. The utility model is economical, simple and practical, can measure direct current or alternating current, can effectively reduce costs, and improve the reliability of the system; the utility model also improves the complexity of the production process; improves the detection accuracy of the current; and improves the noise generated by the product at high current. However, the current Hall sensors are all fixed by bolts during installation, resulting in low efficiency when repairing or replacing, as bolts need to be continuously turned. The Hall sensor in this technical solution does not solve this technical problem. Therefore, it is necessary to design a Hall sensor structure with low cost and wide bandwidth to solve the above problems. Summary of the Utility Model

[0005] In view of the above problems and to overcome the defects of the prior art, the present utility model proposes a Hall sensor structure with low cost and wide bandwidth. The purpose of the present utility model is to add the function of quickly disassembling and installing the housing, which facilitates the quick installation, disassembly and maintenance of the Hall sensor and improves the efficiency.

[0006] To achieve the above object, the technical solution adopted by the present utility model is as follows: The present utility model includes a housing, a magnetic core and a Hall element located inside the housing. The housing is fixed on an installation column, and the installation column is arranged on a placement table. A positioning groove is opened in the placement table, the installation column is inserted into the positioning groove, a plurality of sliding grooves are opened in the positioning groove, and a positioning component is slidably arranged in each sliding groove. A plurality of positioning holes for inserting the positioning components are opened on the installation column. Each positioning component is connected to the placement table through a second spring, and each positioning component is connected to a limit release component. The limit release component is fixed on a driving component, and the driving component is rotatably installed on the placement table.

[0007] Preferably, the positioning component includes a cylinder fixed to one end of the second spring. A convex block is fixed on the cylinder. The convex block is a quarter sphere, and the arc surface of the convex block faces upward.

[0008] Preferably, the limit release component includes a plurality of line channels communicating with the sliding grooves. The plurality of line channels all communicate with a placement groove opened in the placement table. Two pulleys are rotatably arranged in each line channel. One end of each cylinder is fixed with a soft rope. Each soft rope passes through the two pulleys in sequence and is wound around a winding column. The winding column is rotatably installed in the placement groove, and the winding column is fixed on the driving component.

[0009] Preferably, the driving component can be a rotating handle.

[0010] Preferably, a support table is slidably arranged in the positioning groove. The bottom of the support table is fixed in the placement table through a first spring.

[0011] Preferably, the upper side wall of the positioning groove is arc-shaped.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] Through the mutual cooperation of the positioning components and the positioning holes, the present utility model can quickly install the installation column on the placement table. Through the mutual cooperation of the limit release component and the driving component, the limit of the positioning component on the installation column can be quickly released, which facilitates the disassembly and installation of the housing and the maintenance and replacement of the Hall sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional schematic diagram of the structure of the present utility model;

[0015] Figure 2 This is a schematic diagram of the position of the positioning groove of the present utility model;

[0016] Figure 3 For the present utility model Figure 2 An enlarged schematic diagram of part A in it;

[0017] Figure 4 This is a schematic structural diagram of the positioning component in the present utility model.

[0018] Reference numerals: 1 - outer shell, 2 - mounting post, 3 - placing table, 4 - positioning groove, 5 - sliding groove, 6 - positioning hole, 7 - second spring, 8 - cylinder, 9 - convex block, 10 - circuit channel, 11 - pulley, 12 - soft rope, 13 - winding post, 14 - rotating handle, 15 - support table, 16 - first spring, 17 - placing groove. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Next, in conjunction with the attached Figures 1-4 A further detailed description will be given to the specific implementation manners of the present utility model.

[0021] In this embodiment, through Figures 1-4 As shown, the present utility model includes an outer shell 1 and a magnetic core and a Hall element located inside the outer shell 1. The outer shell 1 is fixed on the mounting post 2, the mounting post 2 is arranged on the placing table 3, a positioning groove 4 is opened in the placing table 3, the mounting post 2 is inserted into the positioning groove 4, a plurality of sliding grooves 5 are opened in the positioning groove 4, a positioning component is slidably arranged in each sliding groove 5, a plurality of positioning holes 6 for the positioning component to be inserted are opened on the mounting post 2, each positioning component is connected to the placing table 3 through a second spring 7, each positioning component is connected to a limit release component, the limit release component is fixed on a driving component, and the driving component is rotatably mounted on the placing table 3;

[0022] When the staff installs the housing 1, they hold the installation post 2 by hand and insert it into the positioning groove 4. After inserting into the positioning groove 4, they move the installation post 2 downward. After the installation post 2 contacts the positioning component, they continue to move the installation post 2 downward. The installation post 2 will squeeze the positioning component into the sliding groove 5. Subsequently, when the positioning hole 6 on the installation post 2 is concentric with the positioning component, the positioning component will be pushed by the second spring 7 and inserted into the positioning hole 6 to fix the installation post 2. When it is necessary to repair and disassemble the housing 1, the driving component can be used to drive the limit release component to move, driving the positioning component to move away from the housing 1, releasing the limit of the housing 1, and thus removing the installation post 2.

[0023] In this embodiment, through Figures 2-4 As shown, the positioning component includes a cylinder 8 fixed to one end of the second spring 7. A convex block 9 is fixed on the cylinder 8. The convex block 9 is a quarter sphere. The major diameter of the convex block 9 is the same as the diameter of the cylinder 8. The diameter of the sliding groove 5 is the same as the diameter of the cylinder 8. The arc surface of the convex block 9 faces upward. When the second spring 7 pushes the cylinder 8 to move out of the installation post 2 by the maximum distance, the cylinder 8 does not extend out of the sliding groove 5, and only the convex block 9 extends out of the sliding groove. When the installation post 2 continues to descend after contacting the arc surface of the convex block 9, it will squeeze the convex block 9 away from the housing 1 and squeeze the convex block 9 into the sliding groove 5. At this time, the end of the convex block 9 abuts against the side wall of the installation post 2. When the cylinder 8 is concentric with the positioning hole 6, the convex block 9 is inserted into the positioning hole 6 under the elastic force of the second spring 7 to position the installation post 2. Since the lower side surface of the convex block 9 is a plane, the installation post 2 cannot push the convex block 9 into the sliding groove 5 when moving upward, so it cannot move upward.

[0024] In this embodiment, through Figures 2-3 As shown, the limit release component includes a plurality of line channels 10 communicating with the sliding groove 5. The plurality of line channels 10 are all opened in the communication placement groove 17 in the placement table 3. Two pulleys 11 are rotatably arranged in each line channel 10. One end of each cylinder 8 is fixed with a soft rope 12. Each soft rope 12 passes through the two pulleys 11 in sequence and is wound around the winding column 13. The winding column 13 is rotatably installed in the placement groove 17. The winding column 13 is fixed to the driving component. By driving the driving component to drive the winding column 13 to rotate, the winding column 13 rotates to wind the soft rope 12, and the soft rope 12 pulls the positioning component away from the installation post 2. When the positioning component moves out of the positioning hole 6, the installation post 2 can be taken out.

[0025] In this embodiment, through Figure 2 As shown, the driving component can be selected as a rotating handle 14.

[0026] In this embodiment, through Figure 2As shown, a support platform 15 is slidably arranged in the positioning groove 4. The bottom of the support platform 15 is fixed in the placement platform 3 through a first spring 16. When the positioning component releases the limit of the mounting post 2 through the limit release component, the first spring 16 pushes the support platform 15 to drive the mounting post 2 to rise, so that the positioning component is not concentric with the positioning hole 6. At this time, the staff can directly take out the mounting post 2 manually.

[0027] In this embodiment, through Figure 2 As shown, the upper side wall of the positioning groove 4 is arc-shaped, which is convenient for the mounting post 2 to be inserted into the positioning groove 4;

[0028] The above-mentioned rotational settings are all rotationally connected through bearings.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A Hall sensor structure with low cost and wide bandwidth, comprising a housing, a magnetic core and a Hall element located inside the housing, characterized in that: The outer shell is fixed on the mounting post, the mounting post is arranged on the placing table, a positioning groove is formed in the placing table, the mounting post is inserted into the positioning groove, a plurality of sliding grooves are formed in the positioning groove, a positioning component is slidably arranged in each sliding groove, a plurality of positioning holes for the positioning components to be inserted are formed in the mounting post, each positioning component is connected to the placing table through a second spring, each positioning component is connected to a limit release component, the limit release component is fixed on the driving component, and the driving component is rotatably mounted on the placing table.

2. A low-cost wide-bandwidth Hall sensor structure according to claim 1, characterized in that: The positioning component includes a cylinder fixed to one end of the second spring, a convex block is fixed on the cylinder, the convex block is a quarter sphere, and the arc surface of the convex block faces upward.

3. The structure of a Hall sensor with low cost and wide bandwidth according to claim 2, characterized in that: The limit release component includes a plurality of line channels communicating with the sliding grooves, the plurality of line channels communicate with a placement groove formed in the placing table, two pulleys are rotatably arranged in each line channel, a soft rope is fixed to one end of each cylinder, each soft rope sequentially passes through the two pulleys and is wound around a winding column, the winding column is rotatably mounted in the placement groove, and the winding column is fixed on the driving component.

4. A low-cost wide-bandwidth Hall sensor structure according to claim 3, characterized in that: The driving component can be selected as a rotating handle.

5. A Hall sensor structure with low cost and wide bandwidth according to claim 4, characterized in that: A support table is slidably arranged in the positioning groove, and the bottom of the support table is fixed in the placing table through a first spring.

6. A low-cost wide-bandwidth Hall sensor structure according to claim 4, characterized in that: The upper side wall of the positioning groove is arc-shaped.

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