Open-loop Hall sensor with metal shell
By using a metal housing and screw mounting fixing structure, the problems of Hall sensor deformation and assembly accuracy at high temperatures are solved, achieving high-precision measurement and low-cost production.
Patent Information
- Application Number
- CN202422610231.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Open-loop Hall sensors with metal housings are prone to deformation under high temperature conditions, affecting measurement accuracy and assembly accuracy. Non-metal housings have high production costs and poor aesthetics.
The metal shell is designed and fixed by screws. Combined with the upper cover and threaded hole structure, it ensures that the sensor does not deform at high temperatures, improves assembly accuracy and aesthetics, and reduces mold opening costs.
The measurement accuracy and assembly precision of the sensor at high temperature are improved, the production cost is reduced, and the stability and aesthetics of the product are increased.
Smart Images
Figure CN223450032U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electronic circuit technical field, concretely is a kind of open loop hall sensor with metal shell. BACKGROUND
[0002] A kind of open loop hall sensor with metal shell is the current sensor based on Hall effect, it is mainly composed of the following parts, its working principle is as follows: primary side current generates magnetic field, after magnetic core gathers magnetism, the magnetic field intensity is sensed by Hall element at the magnetic core air gap, to determine the primary side current size and direction, the electric signal output by Hall element is handled after signal processing circuit, accurately reflect the measured current information.
[0003] A kind of open loop hall sensor with metal shell, in the use process, sensor assembly time or in high temperature case using need very high accuracy, and non-metal shell is deformed in assembly, with in high temperature case using, to affect the function normal of sensor and the accuracy of measurement, shell size accuracy is not enough when assembling, also affect production;Non-metal shell production needs to open mould production, cost is very high, and most sensors on market are directly filled with glue, glue is directly leaked outside, so it is very affect the product's aesthetic property. SUMMARY
[0004] The utility model discloses a purpose at providing a kind of open loop hall sensor with metal shell, to solve the open loop hall sensor with metal shell proposed in above background art, in the use process, sensor assembly time or in high temperature case use needs very high precision, and non-metal shell is assembled, with in high temperature case use can occur deformation, to affect the function normal of sensor and the accuracy of measurement, shell size precision is not enough when assembling, also affect production;Non-metal shell production needs to open mould production, cost is very high, and most sensors on market are directly filled with glue, glue is directly leaked outside, which greatly affects the problem of product's aesthetic property.To achieve the above purpose, the utility model provides the following technical scheme: an open loop hall sensor with metal shell, including shell, the top of its shell is respectively provided with fixed hole, two the fixed hole is symmetrically distributed with the center point of shell, the inner portion of the shell is respectively slidably connected with two circuit fixed plates, two the circuit fixed plate is symmetrically distributed with the center point of shell, the inner wall of two the circuit fixed plate is respectively fixedly connected with a plurality of fixed blocks, a plurality of the fixed block is internally provided with first threaded hole, the first threaded hole is provided with the center point of fixed block as center, the both sides of the shell are movably connected with upper cover, two the upper cover is symmetrically distributed with the midline point of shell, by sensor assembly time or in high temperature case use needs very high precision, to improve the function normal of sensor and the accuracy of measurement, also consider the convenience of sensor use, so shell is not allowed to deform, use metal shell, also reduce the cost of opening mould, also increase cover plate, can make appearance more beautiful, and also can guarantee assembly precision when sensor assembly, in high temperature case use to ensure the performance stability of product, increase upper cover, use screw mounting fixed design, can make disassembly more convenient when using product, appearance is more beautiful, metal shell, will not deform, increase product stability and assembly precision, upper cover can be freely disassembled for this project patent point.
[0005] Further preferably, one side of the upper cover is movably connected with a magnetic core.
[0006] Further preferably, one side of the two upper covers is respectively provided with a plurality of second threaded holes, and the first threaded holes and the second threaded holes one-to-one correspond, which can be fixed together by screws, and the second threaded holes on the cover plate can be aligned with the first threaded holes on the fixed blocks, so that the cover plate, the shell and the intermediate parts can be stably connected, and the unstable contact caused by shaking is avoided, thereby affecting the use of the sensor.
[0007] Further preferably, a third threaded hole is provided on one side of the upper cover, and the third threaded hole is provided on the midpoint of the upper cover.
[0008] Further preferably, one side of the shell is provided with a first clamping slot, and a wire outlet hole is formed in the first clamping slot.
[0009] Further preferably, the wire outlet hole is movably connected with a zero line output line, a ground line output line and a fire line output line.
[0010] Compared with the prior art, the present application has the following advantages:
[0011] In the present application, high precision is required during sensor assembly or use in high temperature conditions to improve the normal function of the sensor and the accuracy of measurement, and the convenience of use of the sensor is also considered, so the shell is not allowed to deform, a metal shell is used, the mold opening cost is reduced, the cover plate is increased, the appearance is more beautiful, the assembly precision can be ensured during sensor assembly, the performance stability of the product can be ensured during use in high temperature conditions, the upper cover is increased, the screw installation and fixing design is used, the product can be more conveniently disassembled during use, the appearance is more beautiful, the metal shell does not deform, the product stability and assembly precision are increased, and the upper cover can be freely disassembled.
[0012] In the present application, the second threaded hole in the cover plate can be aligned with the first threaded hole in the fixing block, so that the cover plate, the shell and the intermediate parts can be stably connected, and the unstable contact caused by shaking is avoided, so as to affect the use of the sensor. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a three-dimensional main structure schematic diagram of the present application;
[0014] Figure 2 It is a three-dimensional structure schematic diagram of the present application Figure 1 ;
[0015] Figure 3 It is a partial cross-sectional structure schematic diagram of the present application Figure 1 .
[0016] In the drawing: 1, shell; 2, fixing hole; 3, circuit fixing plate; 4, fixing block; 5, first threaded hole; 6, magnetic core; 7, upper cover; 8, second threaded hole; 9, third threaded hole; 10, first clamping slot; 11, wire outlet hole; 12, zero line output line; 13, ground line output line; 14, fire line output line. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0018] See also Figure 1 - Figure 3 The utility model provides a technical solution: it includes a shell 1, and fixing holes 2 are respectively opened on both sides of the top of the shell 1. The two fixing holes 2 are symmetrically distributed with the center point of the shell 1. Two circuit fixing plates 3 are slidably connected to the inside of the shell 1. The two circuit fixing plates 3 are symmetrically distributed with the center point of the shell 1. The inner walls of the two circuit fixing plates 3 are respectively fixedly connected with a plurality of fixing blocks 4. First, a first threaded hole 5 is opened inside the plurality of fixing blocks 4. The first threaded hole 5 is opened with the center point of the fixing block 4 as the center of the circle. Upper covers 7 are respectively movably connected to the two sides of the shell 1. The two upper covers 7 are symmetrically distributed with the midline point of the shell 1. First, the shell 1 can be fixed in a flat position through the fixing holes 2, and the circuit fixing plate 3 can be connected to the shell 1 through the smooth surface around it. Inside, the circuit fixing plate 3 is fixedly connected to the fixing block 4, and a first threaded hole 5 is provided inside the fixing block 4. The side surface of the shell 1 is movably connected to the upper cover 7. The four corners of the upper cover 7 are provided with second threaded holes 8. When the screw enters from the second threaded hole 8, it can be threadedly connected to the first threaded hole 5. The first threaded hole 5 and the second threaded hole 8 correspond one to one. A first card slot 10 and a wire outlet hole 11 are provided on one side of the shell 1, so the neutral output line 12, the ground output line 13 and the live output line 14 can be well separated, which makes the product more beautiful as a whole. Through the above design, the mold opening cost can be reduced, and the disassembly of the product can be more convenient when using it. Moreover, the assembly accuracy can be guaranteed during sensor assembly, and the performance of the product can be ensured stable when used under high temperature conditions.
[0019] In this embodiment, Figure 1 、 Figure 2 and Figure 3 As shown, a magnetic core 6 is movably connected to one side of the upper cover 7, and a plurality of second threaded holes 8 are respectively opened on one side of the two upper covers 7, and the first threaded holes 5 and the second threaded holes 8 correspond one to one, and can be fixed together by screws.
[0020] In this embodiment, Figure 1 、 Figure 2 and Figure 3As shown, the upper cover 7 is provided with a third threaded hole 9 at one side of the midpoint of the upper cover 7, the shell 1 is provided with a first clamping groove 10 at one side, the first clamping groove 10 is internally provided with a wire outlet hole 11, the wire outlet hole 11 is movably connected with a zero line output wire 12, the wire outlet hole 11 is movably connected with a ground line output wire 13, and the wire outlet hole 11 is movably connected with a fire line output wire 14.
[0021] The use method and advantages of the utility model are as follows:
[0022] As shown in Figure 1 , Figure 2 and Figure 3 , first, the shell 1 can be fixed at a flat position through the fixing hole 2, the circuit fixing plate 3 can be connected in the inside of the shell 1 through the smooth surface around it, the circuit fixing plate 3 is fixedly connected with the fixed block 4 in the inside, the first threaded hole 5 is formed in the inside of the fixed block 4, the upper cover 7 is movably connected with the side surface of the shell 1, the second threaded hole 8 is formed in the four corners of the upper cover 7, when the screw enters from the second threaded hole 8, it can be connected with the first threaded hole 5 in turn, the first threaded hole 5 and the second threaded hole 8 are one-to-one corresponding, the shell 1 is provided with the first clamping groove 10 and the wire outlet hole 11 at one side, so that the zero line output wire 12, the ground line output wire 13 and the fire line output wire 14 can be well separated, and the product as a whole is more beautiful, through the above design, the mold opening cost can be reduced, the product can be more convenient to disassemble when used, and the assembly precision can be ensured when the sensor is assembled, and the performance stability of the product can be ensured in high-temperature use.
[0023] The basic principle, main features and advantages of the utility model are shown and described above. The technical workers in the industry should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. An open-loop Hall sensor with a metal housing, comprising a housing (1), characterized in that: The shell (1) is provided with fixing holes (2) on both sides of the top, and the two fixing holes (2) are symmetrically distributed with respect to the center point of the shell (1). The shell (1) is slidably connected to two circuit fixing plates (3) on the inside, and the two circuit fixing plates (3) are symmetrically distributed with respect to the center point of the shell (1). The inner walls of the two circuit fixing plates (3) are fixedly connected to a plurality of fixing blocks (4). A first threaded hole (5) is provided on the inside of the plurality of fixing blocks (4), and the first threaded hole (5) is opened with the center point of the fixing block (4) as the center of a circle. The shell (1) is movably connected to upper covers (7) on both sides, and the two upper covers (7) are symmetrically distributed with respect to the center point of the shell (1).
2. The open-loop Hall sensor with a metal housing according to claim 1, characterized in that: One side of the upper cover (7) is movably connected to a magnetic core (6).
3. The open-loop Hall sensor with a metal housing according to claim 2, characterized in that: A plurality of second threaded holes (8) are respectively provided on one side of the two upper covers (7), and the first threaded holes (5) and the second threaded holes (8) correspond one to one, and can be fixed together by screws.
4. The open-loop Hall sensor with a metal housing according to claim 1, characterized in that: A third threaded hole (9) is provided on one side of the upper cover (7), and the third threaded hole (9) is located at the midpoint of the upper cover (7).
5. The open-loop Hall sensor with a metal housing according to claim 1, characterized in that: A first card slot (10) is provided on one side of the housing (1), and a wire outlet hole (11) is provided inside the first card slot (10).
6. The open-loop Hall sensor with a metal housing according to claim 5, characterized in that: The outlet hole (11) is internally movably connected to a neutral output line (12), the outlet hole (11) is internally movably connected to a ground output line (13), and the outlet hole (11) is internally movably connected to a live output line (14).