A coil and circuit board assembly

Abstract

The utility model discloses a coil and circuit board assembly device, including base, be provided with positioning pin on the base, the base is used for positioning the coil shell assembly through positioning pin, clamp plate, the clamp plate is used for fixed metal insert. Through the base and the positioning pin set up on the base and position the coil shell assembly, are used for the position of coil shell assembly carries out the calibration, is convenient for the pressure equipment of subsequent circuit board.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board assembly technology, specifically relating to a coil and circuit board assembly device. Background Technology

[0002] In the field of electric braking system controllers, solderless coils, as an alternative to soldering installation, can quickly and effectively achieve installation on circuit boards and are gradually becoming an industry trend. Currently, two types of solderless terminal coils are mainly used in this controller.

[0003] One type is a solderless bent-pin coil (such as...) Figure 1 , Figure 2 This type of coil offers high flexibility, allowing for direct positioning using housing holes or tooling during circuit board assembly. Because the coil body and the solderless PIN heads are flexibly connected, the weight of the coil body has minimal impact on its positional accuracy. However, this type of coil suffers from complex needle bending processes and high material costs.

[0004] Another type is the solderless straight needle coil (such as...) Figure 3 While this method solves the problems of complex and costly bending coil manufacturing, it introduces new technical drawbacks. This type of coil requires the coil frame to be fixed to the controller housing, with the terminals rigidly connected to the frame. This indirect connection between the solderless terminals and the controller housing leads to poor terminal positioning. Furthermore, due to the rigid connection between the terminals and the coil frame, the heavy frame with enameled wire makes it prone to misalignment when using a cantilever beam fixing method, resulting in poor overall terminal positioning and frequent misalignment issues during circuit board assembly. Utility Model Content

[0005] The purpose of this invention is to provide a coil and circuit board assembly device to solve the problem that often occurs during circuit board assembly in the prior art, where misalignment during assembly is not possible.

[0006] Therefore, this utility model provides a coil and circuit board assembly device, including a coil housing assembly and a metal insert fixedly installed at the bottom of the coil housing assembly, comprising:

[0007] A base, on which a positioning pin is provided, is used to position the coil housing assembly by means of the positioning pin;

[0008] A pressure plate, used to fix a metal insert.

[0009] Preferably, the upper surface of the base is a tooling reference surface, used to fit against the bottom of the coil housing assembly to position the coil housing assembly.

[0010] Preferably, the tooling reference surface is a horizontally arranged planar structure.

[0011] Preferably, an elastic buffer layer is provided between the metal insert and the tooling reference surface.

[0012] Preferably, the base has an expandable gripper at its center.

[0013] Preferably, there are multiple expanding grippers, each corresponding to a coil in the coil housing assembly.

[0014] Preferably, the end of the expandable gripper is provided with an expandable head.

[0015] Preferably, the bottom of the metal insert is provided with a positioning hole, and the positioning pin is engaged with the positioning hole for connection.

[0016] Preferably, it also includes a vision acquisition module, which is used to acquire the coordinates of the coil housing assembly.

[0017] Preferably, it also includes a pressing device for pressing the circuit board onto the coil housing assembly.

[0018] Beneficial effects:

[0019] 1. This utility model provides a coil and circuit board assembly device, which positions the coil housing assembly by means of a base and a positioning pin provided on the base, for calibrating the position of the coil housing assembly, so as to facilitate the subsequent pressing of the circuit board.

[0020] 2. By closely fitting the tooling reference surface with the plane of the metal insert at the bottom of the coil housing assembly, the position of the coil and its solderless terminals is further corrected.

[0021] 3. By expanding and positioning the coil with the expansion gripper, the coil's position is precisely calibrated, indirectly ensuring the position of the terminals. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a solderless bent-pin coil in the prior art;

[0024] Figure 2 This is a schematic diagram of the structure of a solderless bent-pin coil in the prior art;

[0025] Figure 3This is a schematic diagram of the structure of a solderless straight-needle coil in the prior art;

[0026] Figure 4 This is a schematic diagram of the structure of Embodiment 1 of the coil and circuit board assembly device provided by this utility model.

[0027] Figure 5 A cross-sectional view of Embodiment 1 of a coil and circuit board assembly device provided by this utility model.

[0028] Figure 6 A cross-sectional view of Embodiment 1 of a coil and circuit board assembly device provided by this utility model.

[0029] Figure 7 This is a schematic diagram of circuit board pressing in Embodiment 1 of a coil and circuit board assembly device provided by this utility model.

[0030] Figure 8 This is a schematic diagram of the solderless terminal pressing process before embodiment 1 of the coil and circuit board assembly device provided by this utility model.

[0031] Figure 9 This is a schematic diagram of the solderless terminal press-fitted after embodiment 1 of the coil and circuit board assembly device provided by this utility model.

[0032] Figure 10 A partially enlarged view of Embodiment 1 of a coil and circuit board assembly device provided by this utility model.

[0033] Figure 11 This is a front view of Embodiment 1 of a coil and circuit board assembly device provided by this utility model.

[0034] In the figure, 1-base, 11-locating pin, 12-tooling reference surface, 13-expansion gripper, 14-expansion head, 15-elastic buffer layer, 2-pressure plate, 3-coil housing assembly, 31-housing, 32-coil, 33-coil frame, 34-coil end cap, 35-solderless terminal, 4-metal insert, 5-circuit board. Detailed Implementation

[0035] The following detailed description of preferred embodiments of the present invention, along with the included examples, will make the content of the present invention more readily understood. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In case of any conflict, the definitions in this specification shall prevail.

[0036] Example 1:

[0037] like Figures 1-2The image shows a solderless bent-pin coil from the prior art, which offers high flexibility and can be positioned directly using housing holes or tooling during assembly with a circuit board. Because the coil body and the solderless PIN head are flexibly connected, the weight of the coil body has minimal impact on its positional accuracy. However, this type of coil suffers from complex bending processes and high material costs.

[0038] like Figure 3 As shown, this is a solderless straight-needle coil in the prior art. While it solves the problems of complex manufacturing and high cost of bent-needle coils, it has new technical drawbacks. This type of coil requires the coil frame to be fixed to the controller housing, with the terminals rigidly connected to the frame. This means the solderless terminals are indirectly fixed to the controller housing, leading to poor terminal positioning. Furthermore, because the terminals are rigidly connected to the coil frame, the frame, wrapped with enameled wire, is heavy. When using a cantilever beam fixing method, it is easy to misalign the terminals, resulting in poor overall terminal positioning and frequent misalignment during circuit board assembly.

[0039] Therefore, the following are provided: Figures 1-2 The coil and circuit board assembly shown includes a coil housing assembly 3 and a metal insert 4 fixedly mounted on the bottom of the coil housing assembly 3.

[0040] The coil housing assembly 3 includes a housing 31, a coil 32, a coil frame 33, a coil end cap 34, and a solderless terminal 35. The coil frame 33 is fixedly installed inside the housing 31, and the coil end cap 34 is fixedly installed at the bottom of the coil frame 33. The coil frame 33 and the coil end cap 34 are used to fix the coil 32. The solderless terminal 35 is connected to the coil 32 and is located on the upper part of the coil 32.

[0041] include:

[0042] The base 1 is provided with a positioning pin 11, which is used to position the coil housing assembly 3 by means of the positioning pin 11; the pressure plate 2 is used to fix the metal insert 4.

[0043] The bottom of the metal insert 4 is provided with a positioning hole, and the positioning pin 11 is connected to the positioning hole. The coil housing assembly 3 is initially positioned by the positioning pin 11.

[0044] The upper surface of the base 1 is a tooling reference surface 12, used to position the coil housing assembly 3 by fitting it against the bottom of the coil housing assembly 3. The tooling reference surface 12 is a horizontally arranged planar structure. By tightly fitting the tooling reference surface 12 against the plane of the metal insert 4 at the bottom of the coil housing assembly 3, the positional accuracy of the coil 32 and its solderless terminals 35 is further corrected. An elastic buffer layer 15 is provided between the metal insert 4 and the tooling reference surface 12. The elastic buffer layer 15 is used to compensate for the fitting error between the metal insert 4 and the tooling reference surface 12.

[0045] An expansion gripper 13 is located at the center of the base. Multiple expansion grippers 13 are provided, each corresponding to a coil 32 in the coil housing assembly 3. An expansion head 14 is located at the end of each expansion gripper 13. By expanding and positioning the coil 2 using the expansion grippers 13, the coil's position is precisely calibrated, indirectly ensuring the terminal's position. The expansion head 14 has guide structures at both the top and bottom to facilitate the insertion and removal of the gripper.

[0046] It also includes a vision acquisition module, which is used to acquire the coordinates of the coil housing assembly 3. The vision acquisition module includes an industrial camera and an image processor. The industrial camera is positioned to align with the solderless terminal to acquire the position coordinates of the solderless terminal and guide the pre-assembly of the circuit board 5. The vision acquisition module is prior art, and its structure and usage will not be described in detail here.

[0047] It also includes a pressing device for pressing the circuit board 5 onto the coil housing assembly 3. The pressing device includes a pressure sensor, a displacement sensor, and a pressing drive mechanism. The pressure sensor and displacement sensor provide real-time feedback of pressing force and displacement data, and the pressing drive mechanism presses the circuit board 5 onto the coil housing assembly 3. The pressing device is existing technology, and its specific usage will not be described in detail here.

[0048] Working principle:

[0049] The coil housing assembly 3 is placed into the base 1, and the positioning pin 11 on the base 1 engages with the positioning hole on the metal insert 4 to achieve initial positioning. The pressure plate 2 is used to press the metal insert 4, so that the lower surface of the metal insert 4 is completely attached and fixed to the tooling reference surface 12, calibrating the flatness of the coil end cover 34 and further correcting the position of the coil and its solderless terminals. The coil frame 33 is clamped internally by the expansion clamp 13 to further correct the position of the coil 32 and its solderless terminals 35. The position of the solderless terminals is acquired by the vision acquisition module, and the circuit board 5 is pre-installed inside. The guide part of the solderless terminals enters the hole of the circuit board 5, and the circuit board 5 is pressed in by the pressing equipment.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A coil and circuit board assembly device, comprising a coil housing assembly and a metal insert fixedly mounted on the bottom of the coil housing assembly, characterized in that, include: A base, on which a positioning pin is provided, is used to position the coil housing assembly by means of the positioning pin; A pressure plate, used to fix a metal insert.

2. The coil and circuit board assembly device according to claim 1, characterized in that, The upper surface of the base is a tooling reference surface, used to fit against the bottom of the coil housing assembly to position the coil housing assembly.

3. The coil and circuit board assembly of claim 2, wherein: The tooling reference surface is a horizontally set planar structure.

4. The coil and circuit board assembly of claim 3, wherein, An elastic buffer layer is provided between the metal insert and the tooling reference surface.

5. The coil and circuit board assembly device according to claim 1, characterized in that, An expandable gripper is provided at the center of the base.

6. The coil and circuit board assembly of claim 5, wherein, The expandable grippers are provided in multiple configurations, each corresponding to a coil in the coil housing assembly.

7. The coil and circuit board assembly device according to claim 5, characterized in that, The expansion gripper is provided with an expansion head at its end.

8. The coil and circuit board assembly of claim 1, wherein, The bottom of the metal insert is provided with a positioning hole, and the positioning pin is connected to the positioning hole.

9. The coil and circuit board assembly of claim 1, wherein, It also includes a vision acquisition module, which is used to acquire the coordinates of the coil housing assembly.

10. The coil and circuit board assembly of claim 1, wherein, It also includes a pressing device for pressing a circuit board onto a coil housing assembly.

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