Hall element glue pouring jig

Abstract

A first side plate, a second side plate, a third side plate and a fourth side plate which are vertically arranged and are respectively in close contact with the upper surface of a bottom plate are sequentially arranged and are in close connection pairwise, so that a semi-closed cavity for placing a Hall integrated circuit board is enclosed between the first side plate, the second side plate, the third side plate and the fourth side plate and the bottom plate; at least two positioning through holes are formed in the outer side surface of the first side plate, a positioning pin is mounted in each positioning through hole, and the other end of the positioning pin with one end located on the outer side of the first side plate extends into the semi-closed cavity and is used for being embedded into a product through hole in the Hall integrated circuit board; the outer side of the end, located in the semi-closed cavity, of each positioning pin is sleeved with a gasket, and the end face of the other end of the gasket with one end embedded into the first side plate is used for making contact with the surface, facing the first side plate, of the Hall integrated circuit board. According to the utility model, the encapsulation of the Hall element can be realized through a simple structure, and the size precision and the aesthetic property of the encapsulated product can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of Hall element processing technology, and in particular to a Hall element potting fixture. Background Technology

[0002] In some specialized linear motor modules, multiple motors need to be driven. To ensure the stable operation of these multi-drive linear motor modules, Hall effect sensors are required to compensate for the motors. Hall effect sensors use PU resin potting compound, which is a viscous liquid that easily adheres to the wall. Furthermore, during the curing process, the surface of the compound may sink, affecting the overall size and aesthetics of the Hall effect sensor. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a Hall element potting fixture, which can not only achieve the encapsulation of Hall elements with a simple structure and ensure the dimensional accuracy and aesthetics of the encapsulated product, but also ensure the positional accuracy and stability of the Hall integrated circuit board.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a Hall element potting fixture, wherein the Hall element includes: a Hall integrated circuit board and an adhesive layer covering the outside of the Hall integrated circuit board, and the potting fixture includes: a horizontally arranged base plate and a first side plate, a second side plate, a third side plate, and a fourth side plate arranged vertically and respectively in close contact with the upper surface of the base plate. The first side plate, the second side plate, the third side plate, and the fourth side plate arranged in sequence are tightly connected to each other, thereby forming a semi-closed cavity with the base plate into which the Hall integrated circuit board can be placed.

[0005] The Hall integrated circuit board has at least two spaced product through holes. At least two positioning through holes are provided on the outer surface of the first side plate. A positioning pin is installed in each positioning through hole. The other end of the positioning pin, which is located on the outer side of the first side plate, extends into the semi-enclosed cavity and is used to embed into the product through hole on the Hall integrated circuit board. A washer is fitted on the outer side of one end of each positioning pin located in the semi-enclosed cavity. The other end face of the washer, which is embedded in the first side plate, is used to contact the surface of the Hall integrated circuit board facing the first side plate.

[0006] The following are further improvements to the above technical solution:

[0007] 1. In the above scheme, the Hall integrated circuit board is provided with three product through holes, three positioning pins, and three washers.

[0008] 2. In the above scheme, the gasket is a transistor gasket.

[0009] 3. In the above scheme, one end of the washer has a flange extending radially outward, which is embedded in the first side plate.

[0010] 4. In the above scheme, the locating pin is a screw with external threads.

[0011] 5. In the above scheme, the first side plate, the second side plate, the third side plate, and the fourth side plate are all fixedly connected to the base plate by vertical bolts.

[0012] 6. In the above scheme, the first side plate and the third side plate, which are arranged in parallel opposite directions, are fixedly connected by two transverse bolts that pass through the second side plate and the third side plate respectively.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This utility model relates to a Hall element potting fixture, comprising a vertically arranged first side plate, a second side plate, a third side plate, and a fourth side plate, which are arranged sequentially and tightly connected to each other in close contact with the upper surface of a base plate. These side plates form a semi-enclosed cavity with the base plate, allowing a Hall integrated circuit board to be inserted. The Hall integrated circuit board has at least two spaced-apart product through-holes. At least two positioning through-holes are formed on the outer surface of the first side plate, each containing a positioning pin. One end of the positioning pin is located on the outer side of the first side plate, and the other end extends into the semi-enclosed cavity to be embedded into the product through-hole on the Hall integrated circuit board. Each positioning pin has a washer fitted on the outer side of one end of the semi-enclosed cavity. The other end of the washer, which is embedded in the first side plate, is used to contact the surface of the Hall integrated circuit board facing the first side plate. This can achieve encapsulation of the Hall element with a simple structure and ensure the dimensional accuracy and aesthetics of the encapsulated product. It can also ensure the positional accuracy and stability of the Hall integrated circuit board and prevent it from being deflected or shifted due to the impact of potting. It can also form a gap between the Hall integrated circuit board and the external encapsulation surface to ensure the integrity of the encapsulation, while ensuring the stability of the gap and facilitating demolding. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the Hall element potting fixture of this utility model;

[0016] Appendix Figure 2 This is a cross-sectional view of the Hall element potting fixture of this utility model;

[0017] Appendix Figure 3 This is a cross-sectional view of the Hall element potting fixture of this utility model during use;

[0018] Appendix Figure 4 for Figure 3Enlarged schematic diagram of a local part of the structure;

[0019] Appendix Figure 5 This is a schematic diagram of the structure of the Hall element potting fixture of this utility model during use.

[0020] In the above attached figures: 101, Hall effect integrated circuit board; 102, encapsulation layer; 103, product through hole; 1, first side plate; 2, second side plate; 3, third side plate; 4, fourth side plate; 5, base plate; 6, semi-enclosed cavity; 71, positioning through hole; 72, positioning pin; 8, washer; 81, flange; 91, vertical bolt; 92, horizontal bolt. Detailed Implementation

[0021] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0022] Example 1: A Hall element potting fixture, wherein the Hall element includes: a Hall integrated circuit board 101 and an encapsulation layer 102 covering the outside of the Hall integrated circuit board 101; the potting fixture includes: a horizontally arranged base plate 5 and a first side plate 1, a second side plate 2, a third side plate 3, and a fourth side plate 4 arranged vertically and respectively in close contact with the upper surface of the base plate 5; the first side plate 1, the second side plate 2, the third side plate 3 and the fourth side plate 4 arranged in sequence are tightly connected to each other, thereby forming a semi-closed cavity 6 between the first side plate 101 and the base plate 5, which can be placed into the Hall integrated circuit board 101;

[0023] The Hall integrated circuit board 101 has at least two spaced product through holes 103. At least two positioning through holes 71 are provided on the outer surface of the first side plate 1. A positioning pin 72 is installed in each positioning through hole 71. The other end of the positioning pin 72, which is located on the outer side of the first side plate 1, extends into the semi-enclosed cavity 6 and is used to embed into the product through hole 103 on the Hall integrated circuit board 101. A washer 8 is fitted on the outer side of one end of each positioning pin 72 located in the semi-enclosed cavity 6. The end face of the other end of the washer 8, which is embedded in the first side plate 1, is used to contact the surface of the Hall integrated circuit board 101 facing the first side plate 1.

[0024] The Hall integrated circuit board 101 described above has three product through holes 103, three positioning pins 72, and three washers 8; the washers 8 are TO-220C transistor washers, which are used to fix the position of the Hall integrated circuit board inside the Hall element.

[0025] One end of the washer 8 has a flange 81 extending radially outward, which is embedded in the first side plate 1; the locating pin 72 is a screw with external threads.

[0026] Example 2: A Hall element potting fixture, wherein the Hall element includes: a Hall integrated circuit board 101 and an encapsulation layer 102 covering the outside of the Hall integrated circuit board 101; the potting fixture includes: a horizontally arranged base plate 5 and a first side plate 1, a second side plate 2, a third side plate 3, and a fourth side plate 4 arranged vertically and respectively in close contact with the upper surface of the base plate 5; the first side plate 1, the second side plate 2, the third side plate 3 and the fourth side plate 4 arranged in sequence are tightly connected to each other, thereby forming a semi-closed cavity 6 between the first side plate 101 and the base plate 5, which can be placed into the Hall integrated circuit board 101;

[0027] The Hall integrated circuit board 101 has at least two spaced product through holes 103. At least two positioning through holes 71 are provided on the outer surface of the first side plate 1. A positioning pin 72 is installed in each positioning through hole 71. The other end of the positioning pin 72, which is located on the outer side of the first side plate 1, extends into the semi-enclosed cavity 6 and is used to embed into the product through hole 103 on the Hall integrated circuit board 101. A washer 8 is fitted on the outer side of one end of each positioning pin 72 located in the semi-enclosed cavity 6. The end face of the other end of the washer 8, which is embedded in the first side plate 1, is used to contact the surface of the Hall integrated circuit board 101 facing the first side plate 1.

[0028] The first side plate 1, the second side plate 2, the third side plate 3, and the fourth side plate 4 are all fixedly connected to the base plate 5 by vertical bolts 91; the first side plate 1 and the third side plate 3, which are arranged in parallel opposite directions, are fixedly connected by two horizontal bolts 92 that pass through the second side plate 2 and the third side plate 3 respectively.

[0029] In use, insert one end of at least two washers that correspond to the product through holes on the Hall integrated circuit board into the mounting groove on the inner surface of the first side plate, and make the other end of the washers extend out of the inner surface of the first side plate.

[0030] At least two locating pins are respectively passed through the locating through holes opened on the outer surface of the first side plate and the washer installed on the inner surface of the first side plate and then embedded into the product through holes on the Hall integrated circuit board. The Hall integrated circuit board is installed on the inner side of the first side plate and the gap between the Hall integrated circuit board and the inner surface of the first side plate is maintained by the washer whose end face contacts the Hall integrated circuit board.

[0031] The lower end of the first side plate is tightly installed on the upper surface of the base plate, and the lower ends of the second and fourth side plates are tightly installed on the upper surface of the base plate. At this time, the first side plate is connected between one end of the second and fourth side plates. The third side plate is then placed between the other ends of the second and fourth side plates, and the lower end of the third side plate is tightly installed on the upper surface of the base plate. The second and fourth side plates are then tightly connected to the first and third side plates on their outer ends, respectively. This forms a semi-closed cavity for adhesive injection between the tightly connected first, second, third, and fourth side plates and the base plate. The Hall integrated circuit board installed inside the first side plate is located in the semi-closed cavity.

[0032] Encapsulating adhesive is injected into the semi-enclosed cavity, and after molding and cooling, the element is demolded to obtain the Hall element.

[0033] The above embodiments are further explained as follows:

[0034] The internal cavity design of the fixture enables the Hall element to function while also allowing for convenient installation.

[0035] The structure is semi-enclosed, with only the top glue inlet reserved. All other components are tightly joined together, and the Hall element is fixed in shape using traditional screw locking. Furthermore, the height of the fixture plates on the front, back, left, and right sides of the Hall element is the same as the length of the Hall element, ensuring the distance between the finished product and the linear motor actuator.

[0036] It can be fixed with just screws, and the fixture is flexible, convenient and low cost; the surface fit between each fixture plate ensures the overall dimensional accuracy of the Hall element; the height of the fixture plate ensures the total length of the Hall element and avoids interference with the mover wire outlet.

[0037] The overall structure is simple, compact, and reliable. The entire fixture can be directly placed into the dispensing machine for dispensing, which is convenient for personnel to operate. The groove-free structure makes it easy to demold, and it will not cause the Hall element to be difficult to demold. The dispensing process can be completed in one step without secondary processing, reducing steps and saving time.

[0038] When using the above-mentioned Hall element potting fixture, it can achieve encapsulation of Hall elements with a simple structure and ensure the dimensional accuracy and aesthetics of the encapsulated product. It can also ensure the positional accuracy and stability of the Hall integrated circuit board, avoid positional deflection or displacement caused by potting impact, and form a gap between the Hall integrated circuit board and the external encapsulation surface to ensure the integrity of the encapsulation, while ensuring the stability of the gap and facilitating demolding.

[0039] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A glue-filling jig for a Hall element, the Hall element comprising: The application discloses a Hall integrated circuit board (101) and a glue coating layer (102) coated outside the Hall integrated circuit board (101), and has the characteristics that the glue coating jig comprises a horizontally arranged bottom plate (5) and a first side plate (1), a second side plate (2), a third side plate (3) and a fourth side plate (4) which are vertically arranged and tightly contact with the upper surface of the bottom plate (5), and the first side plate (1), the second side plate (2), the third side plate (3) and the fourth side plate (4) are tightly connected in pairs and form a semi-closed cavity (6) for placing the Hall integrated circuit board (101) with the bottom plate (5). The Hall integrated circuit board (101) has at least two product through holes (103) arranged at intervals, at least two positioning through holes (71) are formed in the outer surface of the first side plate (1), a positioning pin (72) is arranged in each positioning through hole (71), one end of the positioning pin (72) is located outside the first side plate (1), the other end of the positioning pin (72) extends into the semi-closed cavity (6) and is used for being embedded into the product through hole (103) on the Hall integrated circuit board (101), and a gasket (8) is sleeved on the outer side of the one end of each positioning pin (72) located in the semi-closed cavity (6), the end surface of the other end of the gasket (8) embedded into the first side plate (1) is used for contacting the surface of the Hall integrated circuit board (101) facing the first side plate (1). 2.The glue pouring jig for Hall element according to claim 1, characterized in that: The product through hole (103), the positioning pin (72) and the gasket (8) on the Hall integrated circuit board (101) are all provided with three. 3.The glue potting jig for Hall element according to claim 1, characterized in that: The gasket (8) is a semiconductor gasket.

4. The glue potting jig for Hall element according to claim 1, characterized in that: One end of the gasket (8) is provided with a flange part (81) extending radially outward, and the flange part (81) is embedded into the first side plate (1).

5. The glue potting jig for Hall element according to claim 1, characterized in that: The positioning pin (72) is a screw with external threads. 6.The glue potting jig for Hall element according to claim 1, characterized in that: The first side plate (1), the second side plate (2), the third side plate (3) and the fourth side plate (4) are fixedly connected with the bottom plate (5) through vertical bolts (91).

7. The glue potting jig for Hall element according to claim 1, characterized in that: The first side plate (1) and the third side plate (3) which are arranged in parallel are fixedly connected through two horizontal bolts (92) which respectively penetrate the second side plate (2) and the third side plate (3).

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