Hall circuit board fixing frame structure

Abstract

The invention discloses a Hall circuit board fixing frame structure which comprises an end cover, and a fixing frame body is fixedly installed at the top of the end cover. Through the arrangement of the fixing frame body and a fixing assembly, the fixing frame body is of a structure integrally formed by an outer frame, a connecting block, a fixing block and an inner frame; the overall structural strength of installation of the circuit board body and the Hall body is improved, the Hall body is positioned through the groove in the fixing block, the Hall body only needs to be aligned with the groove in the installation process, the assembling efficiency is improved, the circuit board body is fixed to the top of the fixing frame body in cooperation with the fixing assembly, and when the Hall body or the circuit board body breaks down, the Hall body and the Hall body are fixed. The fixing assembly can be directly detached, so that the circuit board body and the Hall body can be rapidly detached from the fixing frame body, the tedious operation of desoldering in a traditional welding mode is avoided, and the problems that maintenance is difficult and elements are prone to being damaged in the traditional welding mode are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of Hall circuit boards, and in particular to a Hall circuit board fixing frame structure. Background Art

[0002] The Hall effect circuit board is a high-density interconnected circuit board designed based on the Hall effect principle. Its core function is to achieve precise conversion and control of magnetic field signals and electrical signals through integrated Hall elements.

[0003] The prior art provides a Hall fixing structure (publication number CN210053311U), which includes a fixing frame body, on which three Hall positioning grooves are formed. The cross-section of the fixing frame body is annular, and the Hall positioning groove passes through the axial surface of the fixing frame body on the side away from the circuit board. A plurality of through holes for the Hall pins to pass through are provided on the axial groove surface of the fixing frame body. The through holes axially pass through the fixing frame body. After passing through the through holes, the Hall pins are welded to the circuit board so that the axial surface of the fixing frame body is in contact with the end surface of the circuit board. The circuit board is formed with an inner hole, and an annular boss is provided on the middle axial surface of the end cover. The annular boss is formed with an axial hole. The end cover, the circuit board and the fixing frame are fixed so that the circumferential outer wall of the annular boss is in contact with the circumferential inner wall of the fixing frame body.

[0004] In actual use of the above patent, the Hall element passes through the through-hole on the fixing frame through the pin and is soldered to the circuit board. The installation process is relatively cumbersome. In addition, since the Hall pin forms a rigid connection with the circuit board and the fixing frame after soldering, when the Hall element or circuit board fails, the pin must be desoldered before disassembly, resulting in the maintenance process being equally cumbersome and easy to damage the component. Therefore, we need to propose a Hall circuit board fixing frame structure. Summary of the Invention

[0005] The object of the present invention is to provide a Hall effect circuit board fixing frame structure. By setting a fixing component, the circuit board body and the Hall effect body can be quickly removed from the fixing frame body, avoiding the tedious operation of desoldering required by traditional welding methods, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A Hall effect circuit board fixing frame structure includes an end cover, a fixing frame body is fixedly mounted on the top of the end cover, a circuit board body is arranged on the top of the fixing frame body, and multiple sets of Hall effect bodies are fixedly mounted on the bottom of the circuit board body; The fixing frame body is mainly composed of an outer frame, multiple groups of connecting blocks, multiple groups of fixing blocks and an inner frame. The outer frame, connecting blocks, fixing blocks and inner frame are arranged in sequence from the outside to the inside. The outer frame, connecting blocks, fixing blocks and inner frame are integrally formed. A fixing assembly for fixing the circuit board body is provided on the top of the fixing frame body, and grooves are respectively provided inside the plurality of groups of fixing blocks.

[0007] Preferably, the fixing assembly includes threaded holes, and the tops of multiple groups of the fixing blocks are respectively provided with threaded holes, the interiors of multiple groups of the threaded holes are respectively threadedly connected with bolts, and the top of the circuit board body is provided with multiple groups of mounting holes for bolt insertion.

[0008] Preferably, the multiple groups of Hall bodies and the multiple groups of fixing blocks are arranged in a ring array, and the outer walls of the multiple groups of Hall bodies are respectively fitted with the inner walls of the multiple groups of grooves.

[0009] Preferably, limiting columns are respectively provided on both sides of the plurality of groups of grooves, and the height of the limiting columns is the same as the height of the Hall body.

[0010] Preferably, the tops of the multiple groups of connection blocks are respectively provided with positioning posts, and the interior of the circuit board body is provided with multiple groups of positioning holes for plugging in the positioning posts, and the multiple groups of positioning posts and the multiple groups of positioning holes are arranged in a ring array.

[0011] Preferably, an annular boss is provided on the top of the end cover, and the inner wall of the inner frame fits with the outer wall of the annular boss.

[0012] Preferably, the height of the inner frame is smaller than that of the outer frame, and the multiple groups of fixing blocks and the multiple groups of connecting blocks are alternately arranged in a staggered manner.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a fixing frame body and a fixing assembly. The fixing frame body adopts an integrally formed structure of an outer frame, a connecting block, a fixing block and an inner frame, thereby improving the overall structural strength of the installation of the circuit board body and the Hall body. The Hall body is positioned by a groove in the fixing block. During installation, it only needs to be aligned with the groove, thereby improving assembly efficiency. The circuit board body is fixed to the top of the fixing frame body in conjunction with the fixing assembly. When the Hall body or the circuit board body fails, the fixing assembly can be directly disassembled, so that the circuit board body and the Hall body can be quickly removed from the fixing frame body, avoiding the tedious operation of desoldering required in the traditional welding method, and solving the problem that the traditional welding method is difficult to maintain and easy to damage components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the fixing frame body and the circuit board body of the present invention; Figure 3 It is a structural schematic diagram of the fixing component of the present invention.

[0015] In the figure: 1. End cover; 2. Fixing frame body; 21. Outer frame; 22. Connecting block; 23. Fixing block; 24. Inner frame; 3. Circuit board body; 4. Hall body; 5. Fixing assembly; 51. Threaded hole; 52. Bolt; 53. Mounting hole; 6. Groove; 7. Limit column; 8. Positioning column; 9. Positioning hole; 10. Annular boss. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-3 , the present invention provides a technical solution: A Hall effect circuit board fixing frame structure includes an end cover 1, a fixing frame body 2 is fixedly mounted on the top of the end cover 1, a circuit board body 3 is arranged on the top of the fixing frame body 2, and a plurality of Hall effect bodies 4 are fixedly mounted on the bottom of the circuit board body 3; The fixing frame body 2 is mainly composed of an outer frame 21, multiple groups of connecting blocks 22, multiple groups of fixing blocks 23 and an inner frame 24. The outer frame 21, connecting blocks 22, fixing blocks 23 and inner frame 24 are arranged in sequence from the outside to the inside. The outer frame 21, connecting blocks 22, fixing blocks 23 and inner frame 24 are integrally formed. A fixing assembly 5 for fixing the circuit board body 3 is provided on the top of the fixing frame body 2 , and grooves 6 are respectively formed inside the plurality of fixing blocks 23 .

[0018] Among them, the fixing component 5 includes a threaded hole 51, and the tops of multiple groups of fixing blocks 23 are respectively provided with a threaded hole 51. The insides of the multiple groups of threaded holes 51 are respectively threadedly connected with bolts 52. The top of the circuit board body 3 is provided with multiple groups of mounting holes 53 for plugging in the bolts 52. Through the setting of the fixing component 5, after the multiple bolts 52 are respectively screwed into the multiple threaded holes 51, the circuit board body 3 is locked by using the threaded pair. The head of the bolt 52 presses the surface of the circuit board body 3 to form a rigid connection, and the length of the bolt 52 matches the depth of the threaded hole 51 to avoid excessive pressure from damaging the circuit board body 3. The bolt 52 connection provides stable mechanical fixation while retaining detachability. This fixing method avoids the tedious operations caused by welding and is convenient for later maintenance and component replacement.

[0019] Specifically, multiple groups of Hall bodies 4 and multiple groups of fixed blocks 23 are arranged in a circular array, and the outer walls of the multiple groups of Hall bodies 4 are respectively fitted with the inner walls of the multiple groups of grooves 6. By arranging the Hall bodies 4 and the fixed blocks 23 in a circular array, the Hall bodies 4 are evenly distributed along the circumference and fit with the inner walls of the grooves 6, thereby eliminating the radial offset of the Hall bodies 4.

[0020] In a further preferred embodiment, limiting columns 7 are respectively provided on both sides of the multiple groups of grooves 6. The height of the limiting columns 7 is the same as the height of the Hall body 4. Through the setting of the limiting columns 7, the limiting columns 7 constrain the axial displacement of the Hall body 4 to prevent it from escaping from the grooves 6 due to gravity or vibration.

[0021] Specifically, multiple groups of connection blocks 22 are respectively provided with positioning posts 8 on the top, and multiple groups of positioning holes 9 are provided inside the circuit board body 3 for plugging in the positioning posts 8. The multiple groups of positioning posts 8 and the multiple groups of positioning holes 9 are arranged in a circular array. Through the arrangement of the positioning posts 8 and the positioning holes 9, the positioning holes 9 distributed in a circular manner at the bottom of the circuit board body 3 are plugged into the positioning posts 8 on the top of the connection block 22 to complete the initial position calibration, ensuring that the mounting holes 53 are automatically aligned with the threaded holes 51 on the top of the fixing block 23, thereby facilitating the installation and fixation of the circuit board body 3, and the positioning posts 8 and the positioning holes 9 are arranged in a circular array to ensure the stability of the installation.

[0022] Among them, an annular boss 10 is provided on the top of the end cover 1, and the inner wall of the inner frame 24 is fitted with the outer wall of the annular boss 10. Through the setting of the annular boss 10, the inner wall of the inner frame 24 is fitted with the outer wall of the boss to achieve positioning, ensuring the concentricity of the entire component and the end cover 1, improving the assembly accuracy, and at the same time enhancing the structural integrity, which is conducive to stable operation in a vibration environment.

[0023] Specifically, the height of the inner frame 24 is smaller than the height of the outer frame 21, and multiple groups of fixing blocks 23 and multiple groups of connecting blocks 22 are staggered and alternately arranged. Through the height difference between the inner frame 24 and the outer frame 21, a through groove is formed between the inner frame 24 and the connecting block 22, which facilitates the installation and adjustment of the Hall body 4 in the groove 6. At the same time, the staggered layout enhances the structural strength and provides a reasonable spatial distribution for each functional component.

[0024] Working Principle: When using the present invention, the circuit board body 3 and the Hall body 4 are first welded and installed, and then multiple Hall bodies 4 are respectively embedded in multiple grooves 6. The grooves 6 are in close contact with the outer walls of the Hall body 4 to form mechanical pre-tightening. At the same time, the equal height constraints of the limit columns 7 on both sides of the grooves 6 realize the radial positioning and vertical limitation of the Hall body 4, ensuring the stability of the Hall body 4 in the grooves 6. At this point, the annular positioning holes 9 at the bottom of the circuit board body 3 are plugged into the positioning posts 8 at the top of the connecting block 22 to complete the initial position calibration, ensuring that the mounting holes 53 are automatically aligned with the threaded holes 51 at the top of the fixing block 23. Then, after screwing multiple bolts 52 into the threaded holes 51, the circuit board body 3 is locked using the threaded pair. The heads of the bolts 52 are pressed against the surface of the circuit board body 3 to form a rigid connection. The length of the bolts 52 matches the depth of the threaded holes 51 to prevent damage to the circuit board body 3 due to excessive pressure. This completes the installation and fixation of the circuit board body 3 and the Hall effect unit 4. When a fault occurs in the Hall effect unit 4 or the circuit board unit 3, the bolt 52 is rotated in the opposite direction to disengage the bolt 52 from the threaded hole 51. The circuit board unit 3 is then pulled upward, and the circuit board unit 3 drives the Hall effect unit 4 to disengage from the fixing frame unit 2 as a whole, thereby facilitating maintenance thereof. This solves the problem that traditional welding methods are difficult to maintain and prone to damage to components.

[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A Hall circuit board fixing frame structure, comprising an end cover (1), characterized in that: A fixing frame body (2) is fixedly mounted on the top of the end cover (1), a circuit board body (3) is provided on the top of the fixing frame body (2), and a plurality of Hall bodies (4) are fixedly mounted on the bottom of the circuit board body (3); The fixing frame body (2) is mainly composed of an outer frame (21), multiple groups of connecting blocks (22), multiple groups of fixing blocks (23) and an inner frame (24); the outer frame (21), connecting blocks (22), fixing blocks (23) and inner frame (24) are arranged in sequence from the outside to the inside; the outer frame (21), connecting blocks (22), fixing blocks (23) and inner frame (24) are integrally formed; A fixing assembly (5) for fixing the circuit board body (3) is provided on the top of the fixing frame body (2), and grooves (6) are respectively provided inside the plurality of groups of fixing blocks (23).

2. The Hall effect circuit board fixing structure according to claim 1, characterized in that: The fixing assembly (5) includes a threaded hole (51), and the tops of the plurality of fixing blocks (23) are respectively provided with a threaded hole (51), the interiors of the plurality of threaded holes (51) are respectively threadedly connected with bolts (52), and the top of the circuit board body (3) is provided with a plurality of mounting holes (53) for plugging the bolts (52).

3. The Hall effect circuit board fixing structure according to claim 1, characterized in that: The multiple groups of Hall bodies (4) and the multiple groups of fixed blocks (23) are arranged in a ring array, and the outer walls of the multiple groups of Hall bodies (4) are respectively fitted with the inner walls of the multiple groups of grooves (6).

4. The Hall effect circuit board fixing frame structure according to claim 1, characterized in that: Limiting columns (7) are respectively provided on both sides of the plurality of groups of grooves (6), and the height of the limiting columns (7) is the same as the height of the Hall body (4).

5. The Hall circuit board fixing frame structure according to claim 1, characterized in that: The tops of the plurality of connection blocks (22) are respectively provided with positioning posts (8), and the interior of the circuit board body (3) is provided with a plurality of positioning holes (9) for plugging the positioning posts (8). The plurality of positioning posts (8) and the plurality of positioning holes (9) are arranged in a ring array.

6. The Hall circuit board fixing frame structure according to claim 1, characterized in that: An annular boss (10) is provided on the top of the end cover (1), and the inner wall of the inner frame (24) fits in contact with the outer wall of the annular boss (10).

7. The Hall circuit board fixing frame structure according to claim 1, characterized in that: The height of the inner frame (24) is smaller than the height of the outer frame (21), and the multiple groups of fixing blocks (23) and the multiple groups of connecting blocks (22) are alternately arranged in a staggered manner.

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