Printed circuit board mounting structure
The mounting structure for printed circuit boards uses protrusions and a bent portion to enhance positional accuracy and stability, addressing assembly issues with automatic machines and reducing costs by eliminating soldering.
Patent Information
- Application Number
- JP2024034017
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-06
- Publication Date
- 2025-09-19
AI Technical Summary
The existing mounting structure for printed circuit boards, as described in Patent Document 1, suffers from reduced positional accuracy and susceptibility to misalignment when using automatic assembly machines due to gaps between the tongue and slit, leading to potential shifts and tilts during assembly.
A mounting structure featuring a component with first and second pieces, each with protrusions, inserted into a slit on the printed circuit board, allowing for precise alignment and fixation through a bent portion that sandwiches the board, eliminating play and ensuring firm attachment without soldering.
The solution enhances positional accuracy and stability, enabling assembly with automatic machines while eliminating the need for soldering, thus reducing manufacturing costs and ensuring robust fixation against impacts.
Smart Images
Figure 2025135929000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a mounting structure for a printed circuit board. [Background technology]
[0002] An example of a mounting structure for a printed circuit board is disclosed in Patent Document 1. The mounting structure for a printed circuit board in Patent Document 1 includes a device main body provided with a tongue and a printed circuit board provided with a slit. In the mounting structure for a printed circuit board in Patent Document 1, the tongue is protruded from the slit and twisted and bent, thereby sandwiching the printed circuit board between the tongue and the device main body, and fixing the device main body and the printed circuit board together. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-273476 Summary of the Invention [Problem to be solved by the invention]
[0004] In the mounting structure for a printed circuit board of Patent Document 1, when an automatic assembly machine such as a robot is used to assemble the device body and the printed circuit board, the dimensions of the slit must be larger than the dimensions of the tongue piece in consideration of the assembly precision. That is, in this mounting structure for a printed circuit board, the width of the slit is set larger than the thickness of the tongue piece in consideration of the tolerances of the thickness of the tongue piece and the width of the slit.
[0005] As a result, the mounting structure for a printed circuit board in Patent Document 1 has a large gap between the tongue and the slit, and when the tongue is bent, the printed circuit board moves away from the tongue, causing the positional relationship between the device body and the printed circuit board to shift or tilt, reducing the positional accuracy of the tongue and the slit. As a result, the mounting structure for a printed circuit board in Patent Document 1 is unable to properly sandwich the printed circuit board between the tongue and the device body, and the device body may be fixed in a floating state relative to the printed circuit board. In this case, even a slight impact may cause a shift between the device body and the printed circuit board.
[0006] Furthermore, in the mounting structure for a printed circuit board in Patent Document 1, in order to ensure fixing force, the tongue may be bent and then soldered to the printed circuit board. Even in this case, the device body may be soldered to the printed circuit board in a state where it is floating, so as mentioned above, even a slight impact may cause a misalignment between the device body and the printed circuit board.
[0007] As described above, the mounting structure for a printed circuit board of Patent Document 1 is difficult to adapt to assembly work using an automatic assembly machine.
[0008] An object of the present invention is to provide a mounting structure for a printed circuit board that can be adapted to assembly work using an automatic assembly machine. [Means for solving the problem]
[0009] In order to achieve the above object, a mounting structure for a printed circuit board according to a first aspect of the present invention comprises a component provided with a first piece and a second piece, and a printed circuit board provided with a slit, wherein the first piece and the second piece are arranged in series in a second direction intersecting a first direction which is a thickness direction of the first piece and the second piece, the first piece having a first protrusion protruding in the first direction from one surface of the first piece along the second direction, and the second piece having a first protrusion protruding in the first direction from the other surface of the second piece along the second direction, The component has a second convex portion that protrudes in the opposite direction to the protruding direction of the first convex portion, and the slit has a dimension that allows the first piece, the second piece, the first convex portion, and the second convex portion to be inserted therein, and when the first piece, the second piece, the first convex portion, and the second convex portion are inserted into the slit, a bent portion that is a part of the first piece that is exposed from the slit is bent along the surface of the printed circuit board, and the printed circuit board is sandwiched between the component and the bent portion, and the component and the printed circuit board are fixed together. [Effects of the Invention]
[0010] The mounting structure for a printed circuit board of the present invention can improve the positional accuracy of the tongue and the slit formed in the printed circuit board, and can be adapted to assembly work using an automatic assembly machine. [Brief explanation of the drawings]
[0011] [Figure 1] FIG. 1 is a plan view of a component and a printed circuit board before being fixed, showing an embodiment of a mounting structure for a printed circuit board according to the present invention. [Figure 2] FIG. 2 is a plan view showing a state in which a printed circuit board is placed on the component. [Figure 3] FIG. 3 is a plan view showing a state in which the component and the printed circuit board are fixed. [Figure 4] 4 is a cross-sectional view showing the component and the printed circuit board before being fixed, taken along line IV-IV in FIG. [Figure 5]5 is a cross-sectional view showing a state in which a printed circuit board is placed on the component, taken along line VV in FIG. [Figure 6] FIG. 6 is a cross-sectional view showing the state in which the component and the printed circuit board are fixed, taken along line VI-VI in FIG. [Figure 7] FIG. 7 is a perspective view showing a part of the component, taken along line VII in FIG. [Figure 8] FIG. 8 is a perspective view showing a part of the component, taken along the line VIII in FIG. DETAILED DESCRIPTION OF THE INVENTION
[0012] An example of an embodiment (example) of a printed circuit board mounting structure according to the present invention will be described below with reference to the drawings. Note that, since the drawings are schematic diagrams, the main parts are shown, and parts other than the main parts are omitted, and some hatching and some cross sections are omitted.
[0013] The present invention is not limited to the following embodiments. The components in the following embodiments include those that can be easily imagined by a person skilled in the art, those that are substantially the same, and those that are within the so-called equivalent range. Furthermore, the components disclosed in the following embodiments can be combined as appropriate.
[0014] (Description of the configuration of the embodiment) The configuration of the mounting structure for a printed circuit board according to this embodiment will be described below.
[0015] (Description of Electrical Device 100) As shown in the figure, in this example, the electrical device 100 includes a component 1 and a printed circuit board 2. The component 1 and the printed circuit board 2 are fixed by a mounting structure for a printed circuit board according to this embodiment. Although not explicitly shown in the figure, the electrical device 100 is, for example, mounted inside the passenger compartment of a vehicle, which is a moving object, and is a navigation system or an audio system. The electrical device 100 has the printed circuit board 2 disposed inside a housing, and the component 1 fixed to the printed circuit board 2. In this example, the component 1 is a connector clamp that fixes a connector of a cable connected to another mounting structure for a printed circuit board to the printed circuit board 2.
[0016] (Part 1 explanation) The component 1 is made of a metal plate. The component 1 is provided with a first piece 11, a second piece 12, and a stopper piece 13. The first piece 11, the second piece 12, and the stopper piece 13 are arranged in series in a second direction, the Y direction, which is perpendicular to, in this example, the X direction, which is a first direction that is the thickness direction of the first piece 11, the second piece 12, and the stopper piece 13.
[0017] As shown in FIGS. 4 to 8, the shape of the first piece 11 when viewed from the X direction is a horizontal L-shape. The first piece 11 has a fixed portion 111, a bent portion 112, and a first protrusion 110. The fixed portion 111 protrudes from the stopper piece 13 in the Z direction, which is a third direction that intersects with, and in this example is perpendicular to, the X and Y directions. The bent portion 112 protrudes along the Y direction from the fixed portion 111 side toward the second piece 12 side, with a gap 113 between it and the component 1. The first protrusion 110 protrudes in the X direction from one surface of the fixed portion 111 along the Y direction.
[0018] As shown in Figures 4 to 8, the shape of the second piece 12 when viewed from the X direction is approximately triangular. The second piece 12 protrudes in the Z direction from the stopper piece 13. The second piece 12 has a second protrusion 120. The second protrusion 120 protrudes in the X direction from the other surface of the second piece 12 along the Y direction, on the opposite side to the protruding direction of the first protrusion 110.
[0019] In this example, the first protrusion 110 has a shape that is long in the Z direction, as shown in FIGS. 4 to 7. In this example, the second protrusion 120 has a shape that is long in a direction that is inclined with respect to the Z direction, as shown in FIG. 8. The second protrusion 120 is inclined so that it approaches the first piece 11 side from the side opposite the component 1 toward the component 1. The first protrusion 110 and the second protrusion 120 have a length such that at least a portion of the first protrusion 110 and at least a portion of the second protrusion 120 are positioned in the slit 20 when inserted into the slit 20 together with the first piece 11 and the second piece 12.
[0020] The opposing side 114 of the bent portion 112 facing the component 1 is inclined relative to the component 1 so that the gap 113 increases from the fixed portion 111 side toward the tip of the bent portion 112. The opposing side 114 has a first opposing side 114A on the fixed portion 111 side and a second opposing side 114B on the tip side of the bent portion 112. The inclination angle θB of the second opposing side 114B relative to the component 1 is larger than the inclination angle θA of the first opposing side 114A relative to the component 1. As a result, the inclination angle θA of the first opposing side 114A relative to the component 1 is gentler than the inclination angle θB of the second opposing side 114B relative to the component 1.
[0021] The first outer side 116 opposite the first inner side 115 of the first piece 11 facing the second piece 12 is perpendicular to the component 1. A first guide portion 117 is chamfered on the portion of the first outer side 116 opposite the component 1. A second outer side 122 opposite the second inner side 121 of the second piece 12 facing the first piece 11 is perpendicular to the component 1. A second guide portion 123 is chamfered on the portion of the second outer side 122 opposite the component 1. The first guide portion 117 and the second guide portion 123 form a so-called C-plane. The portion of the first inner side 115 of the first piece 11 opposite the component 1 is also chamfered into a C-plane.
[0022] The length of the second piece 12 in the Y direction increases from the side opposite the component 1 toward the component 1. In other words, the second inner side 121 is inclined toward the first piece 11 from the side opposite the component 1 toward the component 1.
[0023] 4, the height H1 of first piece 11 in the Z direction from stopper piece 13 and the height H2 of second piece 12 in the Z direction from stopper piece 13 are dimensions that allow smooth and easy assembly work in an automatic assembly machine to insert first piece 11, second piece 12, first protrusion 110, and second protrusion 120 of component 1 into slits 20 (described below) of printed circuit board 2. Height H1 of first piece 11 and height H2 of second piece 12 are sufficiently greater than the thickness of printed circuit board 2.
[0024] The stopper piece 13 is provided along the Y direction from the first outer side 116 of the first piece 11 and the second outer side 122 of the second piece 12.
[0025] (Explanation of printed circuit board 2) A slit 20 is provided in the printed circuit board 2. As shown in FIGS. 1 and 4, the slit 20 has a depth D in the Z direction, a width W in the X direction, and a length L in the Y direction. The slit 20 has both end faces 21 along the X direction and both side faces 22 along the Y direction. The printed circuit board 2 has two plate surfaces 23 including the X direction and the Y direction.
[0026] The depth D is also the thickness of the printed circuit board 2 and has a dimension such that, when the first piece 11, the second piece 12, the first protrusion 110, and the second protrusion 120 are inserted into the slit 20, at least a portion of the bent portion 112—in this example, a portion of the first piece 11 opposite the component 1 and a portion of the second piece 12 opposite the component 1—are exposed. The width W is equivalent to the sum of the thickness T1 of the first piece 11 or the thickness T2 of the second piece 12, the protrusion amount T3 of the first protrusion 110, and the protrusion amount T4 of the second protrusion 120. Note that the width W may be slightly larger than the sum T1 + T3 + T4 or T2 + T3 + T4. The length L is equivalent to the length L1 of the series arrangement of the first piece 11 and the second piece 12 in the Y direction. Note that the length L may be slightly longer than the length L1.
[0027] (Description of assembly work of embodiment) The mounting structure for a printed circuit board according to this embodiment has the above-described configuration, and the following describes the assembly work in an automatic assembly machine of the component 1 and the printed circuit board 2. Note that the automatic assembly machine is not shown in the drawings.
[0028] First, as shown in FIGS. 1 and 4, component 1 is placed in a predetermined position, and then printed circuit board 2 is placed on component 1 as shown in FIG. 4. Next, as shown in FIGS. 2 and 5, slit 20 of printed circuit board 2 is fitted into first piece 11, second piece 12, first protrusion 110, and second protrusion 120 of component 1, and printed circuit board 2 is placed on component 1. At this time, both end faces 21 of slit 20 are guided by first guide portion 117 of first piece 11 and second guide portion 123 of second piece 12, and come into contact with first outer edge 116 of first piece 11 and second outer edge 122 of second piece 12. This determines the position of printed circuit board 2 in the Y direction relative to component 1.
[0029] When the printed circuit board 2 is placed on the component 1, the first piece 11, the second piece 12, the first convex portion 110, and the second convex portion 120 are inserted into the slit 20. At this time, a portion of the first convex portion 110 of the first piece 11 and a portion of the second convex portion 120 of the second piece 12 are positioned in the slit 20 and abut against both side surfaces 22 of the slit 20. This determines the position of the printed circuit board 2 in the X direction relative to the component 1. Furthermore, the first piece 11 and the second piece 12 are centered with high precision within the slit 20.
[0030] 3, bent portion 112 of first piece 11 is bent in the direction of arrow A, which is the protruding direction of second protrusion 120, along plate surface 23 of printed circuit board 2, with the connecting portion with fixed portion 111 as the boundary. At this time, a force acts on fixed portion 111 in the direction opposite to bending direction A of bent portion 112, i.e., in the protruding direction of first protrusion 110, i.e., in the direction of arrow B, so that first protrusion 110 abuts against one side surface 22 of slit 20. Meanwhile, a force acts on second piece 12 in the same direction as bending direction A of bent portion 112, i.e., in the protruding direction of first protrusion 110, i.e., in the direction of arrow C, so that second protrusion 120 abuts against the other side surface 22 of slit 20. As a result, even if the width W of the slit 20 is set larger than the thickness T1 of the first piece 11 or the thickness T2 of the second piece 12, the first protrusion 110 and the second protrusion 120 abut against both side surfaces 22 of the slit 20, eliminating play between the component 1 and the printed circuit board 2.
[0031] When bent portion 112 is bent, first opposing edge 114A of bent portion 112 abuts on the edge of slit 20, which is plate surface 23 of printed circuit board 2, and bent portion 112 and component 1 sandwich the printed circuit board 2. Here, as shown by the two-dot chain line in FIG. 5 , if thickness T5 of printed circuit board 2 has the maximum tolerance, first opposing edge 114A may not be able to sandwich the printed circuit board 2. In this case, second opposing edge 114B of bent portion 112 abuts on the edge of slit 20, which is plate surface 23 of printed circuit board 2, and sandwiches the printed circuit board 2 together with component 1.
[0032] When bent portion 112 bends, first protrusion 110 and second protrusion 120 abut against both side surfaces 22 of slit 20, so printed circuit board 2 does not move away from first piece 11 and second piece 12, preventing misalignment of component 1 and printed circuit board 2. As a result, the edge of slit 20 in printed circuit board 2 is sandwiched between component 1 and opposing side 114 of bent portion 112 of first piece 11. As a result, the position of printed circuit board 2 in the Z direction relative to component 1 is determined, and component 1 and printed circuit board 2 are fixed in place. In this way, the assembly work of component 1 and printed circuit board 2 in the automatic assembly machine is completed.
[0033] [Supplementary explanation of the embodiment] The above-described embodiments each show a preferred specific example of the present invention. The components, the arrangement of the components, the order of assembly, etc. shown in the following embodiments are merely examples and are not intended to limit the present invention. Furthermore, the drawings are not necessarily strict illustrations.
[0034] Although the embodiments of the present invention have been described above, the above embodiments merely illustrate some of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments. Furthermore, the present invention is not limited by the embodiments. Furthermore, the components in the embodiments include those that can be easily imagined by a person skilled in the art, those that are substantially the same, and those that are within the so-called equivalent range. Furthermore, the components disclosed in the following embodiments can be combined as appropriate.
[0035] [Note] The contents of the above-described embodiments can be understood, for example, as follows.
[0036] (1) (Configuration of the first protrusion 110 and the second protrusion 120) The above-mentioned printed circuit board mounting structure is a component 1 having a first piece 11 and a second piece 12; a printed circuit board (2) having a slit (20); Equipped with The first piece 11 and the second piece 12 are arranged in series in a second direction that intersects with a first direction that is a thickness direction of the first piece 11 and the second piece 12, The first piece 11 has a first protrusion 110 that protrudes in the first direction from one surface of the first piece 11 along the second direction, the second piece (12) has a second protrusion (120) that protrudes in the first direction from the other surface of the second piece (12) along the second direction, in a direction opposite to the protrusion direction of the first protrusion (110); The slit 20 has a size that allows the first piece 11, the second piece 12, the first convex portion 110, and the second convex portion 120 to be inserted thereinto, With the first piece 11, the second piece 12, the first protrusion 110, and the second protrusion 120 inserted into the slit 20, a bent portion 112, which is a part of the first piece 11 exposed from the slit 20, is bent along the board surface 23 of the printed circuit board 2, and the printed circuit board 2 is sandwiched between the component 1 and the bent portion 112, thereby fixing the component 1 and the printed circuit board 2. It is characterized by:
[0037] Due to the configuration of the first convex portion 110 and the second convex portion 120 described above, even if the width W of the slit 20 in the mounting structure for the printed circuit board according to this embodiment is set to be larger than the thickness T1 of the first piece 11 or the thickness T2 of the second piece 12, when the first piece 11, the second piece 12, the first convex portion 110 and the second convex portion 120 are inserted into the slit 20, the first convex portion 110 and the second convex portion 120 abut against both side surfaces 22 of the slit 20.
[0038] Therefore, the mounting structure for the printed circuit board in this embodiment can eliminate any play between the component 1 and the printed circuit board 2, so that when bending the bending portion 112, the printed circuit board 2 does not move away from the first piece 11 and the second piece 12, causing the positional relationship between the component 1 and the printed circuit board 2 to shift or tilt, and the positional accuracy between the first piece 11, the second piece 12, the first convex portion 110 and the second convex portion 120 of the component 1 and the slit 20 of the printed circuit board 2 is maintained and ensured without any reduction.
[0039] As a result, the mounting structure for a printed circuit board according to this embodiment can precisely sandwich the printed circuit board 2 between the bent portion 112 and the component 1, and can firmly fix the component 1 and the printed circuit board 2, so that even a certain degree of impact will not cause misalignment between the component 1 and the printed circuit board 2. In this way, the mounting structure for a printed circuit board according to this embodiment can be used in assembly work using an automatic assembly machine.
[0040] Furthermore, the mounting structure for the printed circuit board according to this embodiment allows the width W of the slit 20 to be set larger than the thickness T1 of the first piece 11 or the thickness T2 of the second piece 12, making it suitable for assembly work using an automatic assembly machine.
[0041] Furthermore, the mounting structure for the printed circuit board according to this embodiment can firmly fix the component 1 and the printed circuit board 2, ensuring sufficient fixing force, eliminating the need for soldering fixation, and thus allowing for the omission of soldering fixation, thereby reducing manufacturing costs.
[0042] (2) (Configuration of the first protrusion 110 and the second protrusion 120) The above-mentioned printed circuit board mounting structure is The first protrusion 110 and the second protrusion 120 have a shape that is elongated in a third direction that intersects with the first direction and the second direction or in a direction that is inclined with respect to the third direction, and when the first piece 11 and the second piece 12 are inserted into the slit 20 together, at least a part of the first protrusion 110 and at least a part of the second protrusion 120 are positioned in the slit 20. It is characterized by:
[0043] Due to the configuration of the first protrusion 110 and the second protrusion 120 described above, the mounting structure for a printed circuit board according to this embodiment can center the positions of the first piece 11 and the second piece 12 in the slit 20 with high precision by inserting the first piece 11, the second piece 12, the first protrusion 110, and the second protrusion 120 into the slit 20. As a result, the mounting structure for a printed circuit board according to this embodiment can set the length L3 of the bent portion 112 in the second direction to be longer than the length of the tongue in the mounting structure for a printed circuit board of Patent Document 1, which increases the force that clamps the printed circuit board 2 between the bent portion 112 and the component 1, thereby firmly fixing the component 1 and the printed circuit board 2. In other words, the mounting structure for a printed circuit board according to this embodiment is compatible with assembly work using an automatic assembly machine.
[0044] (3) (Configuration of the First Opposing Side 114A and the Second Opposing Side 114B) The above-mentioned printed circuit board mounting structure is The first piece 11 is a fixing portion 111 that protrudes from the component 1 in a third direction that intersects with the first direction and the second direction, and from which the first protrusion 110 protrudes; the bent portion 112 protruding from the fixed portion 111 side toward the second piece 12 side along the second direction; and An opposing edge 114 of the bent portion 112 opposing the component 1 has a first opposing edge 114A on the fixing portion side and a second opposing edge 114B on the tip side of the bent portion 112, An inclination angle θB of the second opposing side 114B relative to the component 1 is larger than an inclination angle θA of the first opposing side 114A relative to the component 1. It is characterized by:
[0045] Due to the configuration of the first opposing edge 114A and the second opposing edge 114B described above, the mounting structure for a printed circuit board according to this embodiment can make the inclination angle θA of the first opposing edge 114A relative to the component 1 more gentle than the inclination angle θB of the second opposing edge 114B relative to the component 1. As a result, in the mounting structure for a printed circuit board according to this embodiment, when the first opposing edge 114A of the bent portion 112 abuts against the edge of the slit 20, which is the plate surface 23 of the printed circuit board 2, and sandwiches the printed circuit board 2 together with the component 1, the mounting structure for a printed circuit board according to this embodiment can increase the amount of the printed circuit board 2 sandwiched between the first opposing edge 114A and the component 1, thereby firmly fixing the component 1 and the printed circuit board 2. In other words, the mounting structure for a printed circuit board according to this embodiment is compatible with assembly work using an automatic assembly machine.
[0046] Moreover, in the mounting structure for a printed circuit board according to this embodiment, the inclination angle θB of the second opposing side 114B relative to the component 1 is larger than the inclination angle θA of the first opposing side 114A relative to the component 1, so that even when the thickness T5 of the printed circuit board 2 has the maximum tolerance as shown by the two-dot chain line in Fig. 5, the second opposing side 114B of the bent portion 112 abuts on the edge of the slit 20 on the plate surface 23 of the printed circuit board 2, and can sandwich the printed circuit board 2 together with the component 1. That is, as shown by the two-dot chain line in Fig. 5, in the case of the first opposing side 114A whose entire opposing side 114 has a gentle slope, when the thickness T5 of the printed circuit board 2 has the maximum tolerance, a situation arises in which the first opposing side 114A cannot sandwich the printed circuit board 2. For this reason, the mounting structure of the printed circuit board in this embodiment is designed so that the inclination angle θB of the second opposing side 114B is larger than the inclination angle θA of the first opposing side 114A, so that the bent portion 112 and the component 1 can sandwich the printed circuit board 2 even when the thickness T5 of the printed circuit board 2 is at the maximum tolerance.
[0047] (4) (Configuration of the first guide portion 117 and the second guide portion 123) The above-mentioned printed circuit board mounting structure is a first inner side 115 of the first piece 11 facing the second piece 12 and a first outer side 116 opposite the first inner side 115 are perpendicular to the component 1; A first guide portion 117 is provided by chamfering a portion of the first outer side 116 opposite to the component 1, a second inner side 121 of the second piece 12 facing the first piece 11 and a second outer side 122 opposite thereto are perpendicular to the component 1; A second guide portion 123 is provided by being chamfered on a portion of the second outer side 122 opposite to the component 1. It is characterized by:
[0048] Due to the configuration of the first guide portion 117 and the second guide portion 123 described above, the mounting structure for a printed circuit board according to this embodiment allows the first piece 11, the second piece 12, the first convex portion 110 and the second convex portion 120 to be smoothly inserted into the slit 20, and is compatible with assembly work using an automatic assembly machine.
[0049] (5) (Configuration of the second piece 12) The above-mentioned printed circuit board mounting structure is The length of the second piece 12 in the second direction increases from the opposite side to the component 1 toward the component 1. It is characterized by:
[0050] Due to the configuration of second piece 12 described above, the mounting structure for a printed circuit board according to this embodiment has a larger connection portion between second piece 12 and component 1, which increases the strength of second piece 12. This increases the force with which second piece 12 holds printed circuit board 2, enabling component 1 and printed circuit board 2 to be firmly fixed together. In other words, the mounting structure for a printed circuit board according to this embodiment is compatible with assembly work using an automatic assembly machine. [Explanation of symbols]
[0051] 1 part 11 1st piece 110 First protrusion 110 111 Fixed part 112 Bent section 113 Gap 114 Opposite Side 114A First opposing side 114B Second opposing side 115 First inner edge 116 First outer edge 117 First guide section 12 2nd piece 120 Second convex part 121 Second inner edge 122 Second outer edge 123 Second guide section 13 Stopper piece 2 Printed circuit board 20 slits 21 End face 22 Side 23 Board surface 100 Electrical Equipment A direction B direction C direction D Depth L length L1 length T1 Thickness T2 Thickness T3 protrusion amount T4 protrusion amount T5 plate thickness W width θA Inclination angle θB Tilt angle
Claims
1. a component provided with a first piece and a second piece; a printed circuit board provided with a slit; Equipped with the first piece and the second piece are arranged in series in a second direction intersecting a first direction that is a thickness direction of the first piece and the second piece, the first piece has a first protrusion protruding in the first direction from one surface of the first piece along the second direction, the second piece has a second protrusion protruding in the first direction from another surface of the second piece along the second direction, in a direction opposite to the protruding direction of the first protrusion, the slit has a size that allows the first piece, the second piece, the first convex portion, and the second convex portion to be inserted therein; With the first piece, the second piece, the first convex portion, and the second convex portion inserted into the slit, a bent portion, which is a part of the first piece exposed from the slit, is bent along the plate surface of the printed circuit board, the printed circuit board is sandwiched between the component and the bent portion, and the component and the printed circuit board are fixed. A mounting structure for a printed circuit board.
2. the first convex portion and the second convex portion have a shape that is elongated in a third direction that intersects with the first direction and the second direction or in a direction that is inclined with respect to the third direction, and when the first piece and the second piece are inserted into the slit, at least a part of the first convex portion and at least a part of the second convex portion are positioned in the slit.
2. The mounting structure for a printed circuit board according to claim 1.
3. The first piece is a fixing portion that protrudes from the component in a third direction that intersects with the first direction and the second direction, and from which the first protrusion protrudes; the bent portion protruding from the fixed portion side toward the second side along the second direction; and an opposing side of the bent portion facing the component includes a first opposing side on the fixing portion side and a second opposing side on the tip side of the bent portion; an inclination angle of the second opposing side relative to the component is larger than an inclination angle of the first opposing side relative to the component; 2. The mounting structure for a printed circuit board according to claim 1.
4. a first outer side of the first piece opposite to a first inner side facing the second piece is perpendicular to the component; a first guide portion is provided by being chamfered on a portion of the first outer side opposite to the component, a second outer side of the second piece opposite to a second inner side facing the first piece is perpendicular to the component; A second guide portion is provided by being chamfered on a portion of the second outer side opposite to the component.
2. The mounting structure for a printed circuit board according to claim 1.
5. The length of the second piece in the second direction increases from the opposite side to the component toward the component.
2. The mounting structure for a printed circuit board according to claim 1.
Citation Information
Patent Citations
Printed board and mounting structure thereof
JP1995273476A