Hall chip protection seat

Abstract

The utility model relates to the technical field of chips, and discloses a Hall chip protection seat, which comprises a protection shell fixedly connected with a PCB (printed circuit board), the protection shell is provided with a positioning groove wrapping a Hall chip, the groove bottom of the positioning groove is provided with a plurality of height limiting blocks, and the height limiting blocks are arranged in the positioning groove. Holes penetrating through the bottom of the protection shell are formed among the multiple height limiting blocks, so that multiple welding pins connected with the Hall chip can pass through the holes, the Hall chip protection base can effectively protect the Hall chip from being damaged, and therefore the percent of pass of PCBA boards is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chips, in particular to a Hall chip protection seat. Background Art

[0002] The existing current sensor uses an integrated chip injection molding method. After integration, the signal connection with the main control board needs to rely on a low-voltage plug-in connection, which increases materials such as plug-ins and wiring harnesses, and also correspondingly increases costs and process installation steps.

[0003] With high integration, the Hall chip and iron core in the new current sensor are separated. Although the signal transmission harness and connectors are reduced, and the materials are reduced, there is a certain space gap between the iron core and the PCB board, which causes the separated Hall chip to be independently welded on the PCB board in an upright state, lacking strength support and protection. It is very easy to bend or damage during transportation and assembly, resulting in a decrease in the qualified rate of the PCBA board and an increase in manufacturing costs. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a Hall chip protection seat, which can effectively protect the Hall chip from damage, thereby improving the qualified rate of the PCBA board.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a Hall chip protection seat on the one hand, which includes a protective shell fixedly connected to a PCB board, the protective shell having a positioning groove for wrapping the Hall chip, a plurality of height limit blocks being arranged at the bottom of the positioning groove, and holes penetrating the bottom of the protective shell being arranged between the plurality of height limit blocks for passing a plurality of solder pins connected to the Hall chip.

[0006] In some embodiments, a fixing buckle is further provided on the protective shell, and the fixing buckle is provided on one side of the positioning groove to limit the movement of the Hall chip in the Z-axis direction.

[0007] In some embodiments, a contact fixing feature is provided on the groove wall of the positioning groove to limit the movement of the Hall chip in the X-axis and Y-axis directions.

[0008] In some embodiments, the notch of the positioning groove is configured to be open; and / or

[0009] A side of the notch of the positioning slot away from the fixing buckle is provided with an error-proofing feature.

[0010] In some embodiments, a gap is provided between the bottom of the protective housing and the PCB board.

[0011] In some embodiments, a support portion is disposed at the bottom of the protective shell, and the support portion forms a gap between the bottom of the protective shell and the PCB board.

[0012] In some embodiments, the Hall chip protection seat further includes a patch solder foot, on which a buckle feature is provided, and the patch solder foot is interference-fitted with the protective housing through the buckle feature to form a whole.

[0013] In some embodiments, two patch solder feet are provided, and the two patch solder feet are provided on both sides of the protective shell along the X-axis direction.

[0014] In some embodiments, the patch solder foot includes two solder foot fixing positions, and the two solder foot fixing positions are symmetrically arranged on both sides of the protective shell along the Y-axis direction.

[0015] In some embodiments, the protective shell is fixedly connected to the PCB board via pins.

[0016] Through the above technical solution, the protective shell has a positioning groove that wraps the entire Hall chip, a height limit block is arranged at the bottom of the positioning groove, and a hole is provided for the welding pin connected to the Hall chip body to pass through, which effectively ensures the correct positioning and protection of the Hall chip body and the welding pin connected thereto in the protective shell, avoids the Hall chip from encountering collision or extrusion during transportation or assembly, thereby protecting the Hall chip as a whole from damage and improving the reliability and stability of the overall assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a Hall chip protection seat provided by the utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of a Hall chip protection seat provided by the utility model from a front view;

[0019] Figure 3 This is a schematic diagram of the bottom view structure of a Hall chip protection seat provided by the utility model;

[0020] Figure 4 This is a schematic diagram of a patch soldering foot structure provided by the utility model;

[0021] Figure 5 It is a front view cross-sectional schematic diagram of the utility model after the chip is placed.

[0022] Description of Reference Numerals

[0023] 1. Protective shell; 10. Positioning groove; 101. Height limit block; 102. Contact fixing feature; 103. Notch; 104. Error prevention feature; 105. Hole; 106. Support part; 11. Fixing buckle; 2. Patch solder foot; 20. Undercut feature; 21. Solder foot fixing position. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] The "PCB" used in this utility model refers to the abbreviation of "Printed circuit board", which is a support body for electronic components. "PCBA" is the abbreviation of Printed Circuit Board Assembly, which refers to the process of assembling electronic components and chips onto a PCB through welding and other processes, making it a circuit board assembly with specific functions.

[0026] Combination Figure 1 , Figure 2 and Figure 5 As shown, the utility model provides a Hall chip protection seat, including a protection shell 1 fixedly connected to a PCB, the protection shell 1 having a positioning groove 10 for wrapping the Hall chip, a plurality of height limit blocks 101 are arranged at the bottom of the positioning groove 10, and holes 105 penetrating the bottom of the protection shell 1 are arranged between the plurality of height limit blocks 101 for a plurality of solder pins connected to the Hall chip to pass through.

[0027] In the utility model, the structure of the Hall chip is composed of a Hall chip body and a soldering pin connected thereto. A protective shell 1 fixedly connected to the PCB serves as a supporting protective member and has a positioning groove 10 thereon which can wrap the entire outer contour of the Hall chip to achieve circumferential protection of the Hall chip. A height limit block 101 is arranged at the bottom of the positioning groove 10 and a hole 105 for the soldering pin connected to the Hall chip body to pass through, which effectively ensures the correct positioning and protection of the Hall chip body and the soldering pin connected thereto in the protective shell, avoids collision or extrusion of the Hall chip during transportation or assembly, thereby protecting the Hall chip as a whole from damage and improving the reliability and stability of the overall assembly.

[0028] Furthermore, a fixing buckle 11 is provided on the protective shell 1, and the fixing buckle 11 is arranged on one side of the positioning groove 10, and is used to limit the movement of the Hall chip in the Z-axis direction. It can be understood that the design of the fixing buckle 11 and the height limit block 101 effectively fixes the spatial position of the Hall chip in the Z-axis direction and prevents the Hall chip from moving up and down.

[0029] In some embodiments, the groove wall of the positioning groove 10 is provided with a contact fixing feature 102 for limiting the movement of the Hall chip in the X-axis and Y-axis directions. By providing the contact fixing feature 102 on the groove wall of the positioning groove 10, the friction caused by the large-area contact between the groove wall and the surface of the Hall chip is effectively reduced, making installation more convenient, and also reducing the clamping force on the Hall chip, which is not easy to damage the Hall chip, thereby achieving the limitation and fixation of the Hall chip in the X-axis and Y-axis directions.

[0030] Preferably, the slot 103 of the positioning slot 10 is set to an open shape; and / or the slot 103 of the positioning slot 10 is provided with an anti-error feature 104 on one side away from the fixing buckle 11. The open design has a guiding feature, which is more convenient for inserting the Hall chip during installation and assembly, and has a guiding and positioning function. The anti-error feature 104 can be set to a chamfer, so as to avoid the Hall chip being installed in the wrong direction during assembly and installation.

[0031] In some embodiments, a gap is provided between the bottom of the protective housing 1 and the PCB. Specifically, a support portion 106 is provided at the bottom of the protective housing 1. Figure 3 As shown, the support portion 106 forms a gap between the bottom of the protective shell 1 and the PCB. It can be understood that the support portion 106 can be any appropriate structure, and can be arranged on both sides of the hole 105 along the Y-axis direction to form an I-shaped structure, or can be arranged at both ends of the hole 105 along the X-axis direction, etc., so that a gap is left between the bottom of the protective shell 1 and the PCB, so that when the product passes through the reflow soldering equipment, the solder can penetrate into the surface of the PCB, fully wrap the solder pins of the Hall chip, and ensure its firmness.

[0032] Combination Figure 1 and Figure 4As shown, in some embodiments, the Hall chip protection seat further includes a patch solder foot 2, on which a buckle feature 20 is provided, and the patch solder foot 2 is interference-fitted with the protective housing 1 through the buckle feature 20 to form a whole. The patch solder foot 2 is welded on the pad of the circuit board through surface mounting technology. Traditional structural fixings usually require additional bolts or other fixing elements for assembly, while surface mounting technology can be mounted through automated equipment, with high precision and consistency in the manufacturing process, improving production efficiency, improving product quality, and simplifying the assembly process. Preferably, the patch solder foot 2 is provided with a buckle feature 20, so that the patch solder foot 2 can form an undercut or embedded connection when assembled with the protective housing 1. This connection method may include some protrusions or recessed structures of the patch solder foot 2, which fit with the corresponding structure of the protective housing 1, thereby achieving a close connection between the two, preventing slippage, and improving the firmness after assembly.

[0033] Furthermore, if Figure 4 As shown, in some embodiments, the patch solder foot 2 includes two solder foot fixing positions 21, and the two solder foot fixing positions 21 are symmetrically arranged on both sides of the protective shell 1 along the Y-axis direction. It can be understood that a patch solder foot 2 is designed with two solder foot fixing positions 21, which can increase the stability of the product after welding.

[0034] In some embodiments, the protective housing 1 may also be fixedly connected to the PCB via pins.

[0035] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A Hall chip protection seat, characterized in that: The invention comprises a protective shell (1) fixedly connected to a PCB board, the protective shell (1) having a positioning groove (10) for enclosing the Hall chip, a plurality of height limiting blocks (101) being arranged at the bottom of the positioning groove (10), and holes (105) penetrating the bottom of the protective shell (1) being arranged between the plurality of height limiting blocks (101) for allowing a plurality of solder pins connected to the Hall chip to pass through.

2. The Hall chip protection seat according to claim 1, characterized in that: The protective housing (1) is also provided with a fixing buckle (11), which is arranged on one side of the positioning groove (10) and is used to limit the movement of the Hall chip in the Z-axis direction.

3. The Hall chip protection seat according to claim 1, characterized in that: A contact fixing feature (102) is provided on the groove wall of the positioning groove (10) for limiting the movement of the Hall chip in the X-axis and Y-axis directions.

4. The Hall chip protection seat according to claim 2, characterized in that: The notch (103) of the positioning groove (10) is configured to be open; and / or A mistake-proofing feature (104) is provided on a side of the notch (103) of the positioning slot (10) away from the fixing buckle (11).

5. The Hall chip protection seat according to claim 1, characterized in that: A gap is provided between the bottom of the protective housing (1) and the PCB board.

6. The Hall chip protection seat according to claim 5, characterized in that: The bottom of the protective shell (1) is provided with a support portion (106), and the support portion (106) forms a gap between the bottom of the protective shell (1) and the PCB board.

7. The Hall chip protection seat according to any one of claims 1 to 6, characterized in that: The Hall chip protection seat also includes a patch solder foot (2), on which a buckle feature (20) is provided, and the patch solder foot (2) is interference-fitted with the protection housing (1) through the buckle feature (20) to form a whole.

8. The Hall chip protection seat according to claim 7, characterized in that: Two patch soldering feet (2) are provided, and the two patch soldering feet (2) are arranged on both sides of the protective shell (1) along the X-axis direction.

9. The Hall chip protection seat according to claim 8, characterized in that: The patch soldering foot (2) comprises two soldering foot fixing positions (21), and the two soldering foot fixing positions (21) are symmetrically arranged on both sides of the protective shell (1) along the Y-axis direction.

10. The Hall chip protection seat according to claim 1, characterized in that: The protective shell (1) is fixedly connected to the PCB board via pins.

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