JP2008270445A - Electronic device mounting structure, terminal aligning jig, and electronic device mounting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the increase of the assembly cost and the member cost while simplifying the work when the terminals of an electronic device are collectively inserted into the terminal receiving portions of a board. <P>SOLUTION: In this electronic device mounting structure for aligning the terminals 2a of the electronic device 2 positioned and held on a member 1 to be mounted using a terminal aligning jig 4, and mountably and collectively inserting them into the terminal receiving portions 3a of the board 3, the terminal aligning jig 4 has a pair of separable jig bodies 5, cut guide grooves are formed in each jig body so that the terminals 2a are movably fitted therein from the end position of the jig body, positioning and aligning holes can be formed in the parts where respective guide grooves intersect by which holes the terminals 2a can be positioned, controlled and aligned, upon terminal alignment the terminals 2a are positioned, controlled and aligned by the positioning and aligning holes formed by superposing the parts of the pair of jig bodies, and after the terminal alignment, the pair of jig bodies are removed from the electronic device 2 by separating the pair of jig bodies. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electronic element mounting structure, a terminal alignment jig, and an electronic element mounting method.

  In general, when an electrophotographic method is adopted in an image forming apparatus capable of forming a color image, an optical scanning device may be used to form a latent image on a photoconductor. Among them, in the multi-beam type optical scanning device, it is necessary to adjust the emission directions of the respective laser beams with respect to, for example, four semiconductor laser diodes as a plurality of beams. On the other hand, in order to drive these laser diodes, it is also necessary to electrically connect each terminal of the laser diode to a driver board on which components are mounted by soldering or the like.

  Generally, in order to insert the terminals of a laser diode whose emission direction is adjusted into a terminal receiving portion such as a through hole provided on a driver board, the number of terminals is large (for example, 3 × 4 = 12). Furthermore, since the directions of the adjusted laser diode terminals are different from each other, it is very difficult to collectively insert these terminals into the terminal receiving portion of the driver board. However, in order to eliminate such difficulties, it is not easy to adjust the light emitting direction of each laser diode after the laser diode terminals are first attached to the driver board.

  On the other hand, a method for facilitating terminal insertion has also been proposed (see Patent Document 1). In Patent Document 1, a guide member in which a tapered guide hole that is connected to the terminal receiving portion of the driver board is formed for each terminal on the terminal insertion surface side of the driver board is arranged in advance. A system is disclosed in which a terminal is inserted into these guide members and inserted into a terminal receiving portion having a small opening in the driver board as it is.

JP 2003-174293 A (Embodiment of the Invention, FIG. 5)

  A technical problem of the present invention is that an electronic element mounting structure and a terminal aligning jig that prevent an increase in assembly cost and member cost while simplifying operations when collectively inserting terminals of electronic elements into terminal receiving portions of a substrate And providing an electronic device mounting method.

  That is, in the invention according to claim 1, the electronic element is positioned and held at the electronic element positioning portion formed in advance on the mounted member, and the terminals of the positioned and held electronic elements are aligned using a terminal aligning jig, An electronic element mounting structure for collectively mounting so that the terminals of the electronic elements aligned with the previously formed terminal receiving portion can be mounted, wherein the terminal alignment jig has a pair of separable jig bodies, Each jig body is formed with a guide groove cut so that the terminal of the electronic element is movably fitted from the end position of the jig body, and the positioning of the terminal of the electronic element is regulated at the intersection of each guide groove. The positioning and alignment holes can be formed, and when aligning the terminals of the electronic elements, the terminals of the electronic elements are positioned and aligned in the positioning and alignment holes formed by overlapping a part of the pair of jig bodies. Elemental Is an electronic device mounting structure which is adapted remove a pair of the jig main body from the electronic device by separating the pair of jig body after Kosoroe.

The invention according to claim 2 is the electronic element mounting structure according to claim 1, wherein a plurality of the electronic elements are attached to the mounted member.
The invention according to claim 3 is the electronic element mounting structure according to claim 2, wherein the electronic element is positioned and held by the mounted member so as to be inclined with respect to the substrate.
According to a fourth aspect of the present invention, there is provided a terminal alignment for aligning the terminals of the electronic elements positioned and held on the mounted member, which are used for collectively inserting the terminals of the electronic elements into a terminal receiving portion formed in advance on the substrate so as to be mountable. A jig having a pair of separable jig bodies, each of which has a guide groove cut in such a manner that the terminals of the electronic elements are movably fitted from the end positions of the jig bodies. It is possible to form a terminal alignment hole in which the terminals of the electronic element are positioned and aligned at the intersection of these guide grooves, and when aligning the terminals of the electronic element, a part of the pair of jig bodies is overlapped. The positioning and alignment holes formed by the positioning and alignment of the electronic device terminals are regulated and aligned, and after the electronic device terminals are aligned, the pair of jig bodies are separated to remove the pair of jig bodies. Terminal alignment treatment It is.
According to a fifth aspect of the present invention, in the terminal aligning jig according to the fourth aspect, the guide groove has a shape that expands along a direction in which the pair of jig main bodies overlap when forming the terminal aligning hole. Alignment jig.
According to a sixth aspect of the present invention, in the terminal aligning jig according to the fourth aspect, when the pair of jig main bodies form the terminal aligning holes, the positioning of the pair of jig main bodies is restricted by the positioning protrusions protruding from the attached member. This is a moving terminal alignment jig.

  The invention according to claim 7 is a positioning and holding step of positioning and holding the electronic element at the electronic element positioning portion previously formed on the attached member when mounting the terminal of the electronic element on the terminal receiving part previously formed on the substrate. The guide body has a pair of separable jig bodies, and each jig body has a guide groove cut so that the terminal of the electronic element is movably fitted from the end position of the jig body. The terminal of the electronic element that is positioned and held by the mounting member in the positioning and holding step is positioned using a terminal aligning jig that can form a positioning and aligning hole that can align and align the terminals of the electronic element at the intersecting portion. A terminal aligning step for regulating and aligning, a terminal inserting step for collectively mounting the terminals aligned in the terminal aligning step on the terminal receiving portion of the substrate so that they can be mounted, and the pair of jig books after the terminal inserting step Which is the electronic device mounting method and a withdrawal step of disengaging the pin alignment fixture from the terminal of the electronic device by separating.

According to the first aspect of the invention, when the terminals of the electronic device are collectively inserted into the terminal receiving portion of the substrate, it is possible to prevent an increase in assembly cost and member cost while simplifying the operation. .
According to the second aspect of the present invention, it is easier to insert the terminals of a plurality of electronic elements into the substrate as compared with the case where the present configuration is not provided.
According to the third aspect of the present invention, the degree of freedom in design can be increased and the characteristics of the electronic element can be more easily exhibited when the electronic element is attached to the member to be attached, compared to the case where the present configuration is not provided. Become.
According to the fourth aspect of the present invention, it is possible to provide a terminal aligning jig capable of improving work efficiency when collectively inserting the terminals of the electronic element into the terminal receiving portion of the substrate.
According to the invention which concerns on Claim 5, compared with the case where it does not have this structure, a terminal can be easily guide | induced to a terminal alignment hole, and simplification of an operation | work is promoted now.
According to the invention which concerns on Claim 6, compared with the case where it does not have this structure, a terminal alignment hole can be formed in the stable position.
According to the invention of claim 7, there is provided an electronic element mounting method that simplifies the operation and prevents an increase in assembly cost and member cost at the same time when batch-inserting the terminals of the electronic element into the terminal receiving portion of the substrate. become able to.

First, an outline of an embodiment model to which the present invention is applied will be described.
Outline of Embodiment Model FIG. 1 shows an outline of an electronic element mounting structure according to an embodiment model embodying the present invention, and FIG. 2 shows an outline of a terminal alignment jig.
Here, as shown in FIGS. 1 and 2, one of the representative models of the electronic element mounting structure is that the electronic element 2 is positioned and held in an electronic element positioning portion formed in advance on the mounted member 1, and the positioning is held. Electronic device mounting structure in which terminals 2a of electronic devices 2 are aligned using a terminal aligning jig 4, and terminals 2a of electronic devices 2 aligned with terminal receiving portions 3a formed in advance on substrate 3 are packaged so as to be mountable. The terminal aligning jig 4 has a pair of separable jig bodies 5 (5a, 5b), and each jig body 5 has a terminal 2a of the electronic element 2 from the position of the end of the jig body. Guide grooves 6 (6a, 6b) cut so as to be movably fitted are formed, and positioning alignment holes 7 in which the terminals 2a of the electronic elements 2 are positioned and aligned are formed at the intersections of the guide grooves 6. A pair of jigs can be used when the terminals of the electronic element 2 are aligned. By positioning and aligning the terminals 2a of the electronic elements 2 in the positioning and alignment holes 7 formed by overlapping a part of the terminals 5, the pair of jig bodies 5 are separated after the terminals of the electronic elements 2 are aligned. The pair of jig bodies 5 is removed from the electronic element 2.

  Here, as a typical aspect of the electronic element 2, there is an optical element that requires adjustment of the electronic element 2 itself. For example, application of adjusting the light emitting direction of the light emitting element or adjusting the light receiving direction of the light receiving element is possible. is there. Moreover, although the quantity of the electronic element 2 is not specifically limited, In order to exhibit this attachment structure effectively, it is preferable to provide two or more. Further, when a plurality of electronic elements 2 are provided, it is preferable that the electronic elements 2 are positioned and held on the mounted member 1 so as to be inclined with respect to the substrate 3. The degree of freedom of design can be increased when attaching to the attachment member 1, and in particular, a layout that can further exhibit the characteristics of the electronic element 2 itself can be selected. When a semiconductor laser diode is used as the electronic element 2, the irradiation direction of the laser light of each electronic element 2 is different, and even if each terminal 2 a is shifted in a different direction, the terminal 3 a to the terminal receiving portion 3 a of the substrate 3 is shifted. Batch insertion is facilitated.

  Further, the “attached member 1” may be any member as long as the electronic element 2 can be attached thereto, and includes a wide range such as an aspect in which the electronic element 2 is directly attached to the attached member 1 itself and an aspect in which the electronic element 2 is attached via an intermediate inclusion. Further, a typical embodiment of the substrate 3 includes a printed wiring board. In this case, the terminal receiving portion 3a may be any terminal as long as the terminal 2a can be inserted. For example, a through hole, a simple insertion hole, or a printed wiring board may be used. For example, a mounted connector.

  A typical example of the terminal aligning jig 4 used in such an electronic element mounting structure is shown in FIG. In other words, the terminals 2a of the electronic element 2 are used to be collectively inserted into a terminal receiving portion 3a formed in advance on the substrate 3 so as to be mountable, and the terminals 2a of the electronic element 2 positioned and held on the mounted member 1 are aligned. The alignment jig 4 has a pair of separable jig bodies 5 (5a, 5b), and each jig body 5 has a terminal 2a of the electronic element 2 moved from the end position of each jig body. Guide grooves 6 (6a, 6b) cut so as to be freely fitted are formed, and positioning alignment holes 7 are formed in the portions where the guide grooves 6 intersect to align and align the terminals 2a of the electronic element 2. When the terminals of the electronic elements 2 are aligned, the terminals 2a of the electronic elements 2 are positioned and regulated by positioning alignment holes 7 formed by overlapping a part of the pair of jig bodies 5, and the electronic elements 2 A pair of jig bodies after terminal alignment It is obtained so as to remove the pair of jig main body 5 from the electronic device 2 by separating the.

Here, the number of the guide grooves 6 is not particularly limited, and is determined by the number of terminals and the terminal shape of the electronic element 2. Usually, a plurality of grooves are provided at one place. Needless to say, a plurality of guide grooves 6 may be provided in each jig body 5a, 5b corresponding to the plurality of electronic elements 2.
Further, the cutting direction of the guide groove 6 may be formed linearly from the end of the jig body 5. For example, the terminal aligning jig 4 is inserted between the mounted member 1 and the substrate 3 at the time of terminal alignment. It does not matter if the notch bends to match the direction of the cut. Furthermore, the stacking direction of the pair of jig bodies 5 (5a, 5b) is not particularly limited, and may be stacked in a direction facing each other or stacked in a direction intersecting each other. In this case, it is necessary to form the positioning and alignment holes 7 by the guide grooves 6, and it is preferable that the pair of jig bodies 5 are overlapped so that the guide grooves 6 intersect.

  Further, from the viewpoint of easily guiding the terminal 2 a to the positioning and alignment hole 7, the guide groove 6 has a shape that expands along a direction in which the pair of jig bodies 5 overlap when the positioning and alignment hole 7 is formed. It is preferable. From the viewpoint of forming the positioning and alignment hole 7 at a stable position, the pair of jig bodies 5 (5a and 5b) are formed by positioning protrusions that protrude from the mounted member 1 when the positioning and alignment hole 7 is formed. It is preferable that the positioning is restricted. At this time, if the substrate 3 having the terminal receiving portion 3a is further positioned by the positioning protrusions, the terminals 2a can be positioned and aligned more effectively.

And as an electronic element attachment method in this embodiment model, what is necessary is just as follows. That is, as shown in FIGS. 1 and 2, when the terminal 2 a of the electronic element 2 is mounted on the terminal receiving part 3 a formed in advance on the substrate 3, the electron is positioned on the electronic element positioning portion formed in advance on the attached member 1. A positioning and holding step for positioning and holding the element 2 and a pair of separable jig main bodies 5 (5a, 5b) and the terminals 2a of the electronic elements 2 are moved from the end positions of the jig main bodies to each jig main body 5. It is possible to form guide grooves 6 (6a, 6b) that are cut so as to fit freely, and to form positioning alignment holes 7 where the terminals 2a of the electronic elements 2 are positioned and aligned at the intersections of the respective guide grooves 6. The terminal aligning step of aligning and aligning the terminals 2a of the electronic elements 2 positioned and held on the mounted member 1 in the positioning and holding step using the terminal aligning jig 4 and the terminals on the terminal receiving portion 3a of the substrate 3 are performed. Aligned in the alignment process A terminal insertion step for collectively inserting the terminals 2a so that they can be mounted, and a separation step for separating the pair of jig bodies 5 from the terminals 2a of the electronic element 2 by separating the pair of jig bodies 5 after the terminal insertion step. It is a waste.
Here, “mountable” means that the terminal 2a is inserted into the terminal receiving portion 3a, and the terminal 2a once inserted does not come out of the terminal receiving portion 3a. This means that the substrate 3 is fixed. Further, it goes without saying that the terminal 2a is electrically connected by soldering or the like, and it goes without saying that the detaching step may be performed either before or after such electrical connection is made. Absent.

Hereinafter, the present invention will be described in more detail based on embodiments shown in the accompanying drawings.
Embodiment FIG. 3 shows an enlargement of a main part of an optical scanning device according to an embodiment to which the present invention is applied. In the figure, the optical scanning device of the present embodiment is a multi-beam optical scanning device used in an image forming apparatus such as a laser printer, and includes four electronic elements in a stepped portion 10c of the apparatus housing 10. The semiconductor laser diode (hereinafter referred to as LD) 20 is attached, and the terminals 23 (23a to 23c: three in this example but two in the figure are visible) of the LD 20 are mounted on the printed wiring board and the like. Are inserted into the through holes 31 of the driver board 30 on which is mounted.

The LD 20 according to the present embodiment includes a semiconductor chip or the like not shown on the stem 21, an element body packaged by a can 22, and three terminals 23 extending outward from the stem 21 side. It has become. In the present embodiment, the LD 20 is fixed by press-fitting the element main body into the hole 24a of the LD holder 24 as an intermediate inclusion. First, after the LD holder 24 to which the LD 20 is fixed in this way is temporarily fixed to the apparatus housing 10 by screwing or the like, the laser beam (beam) emission direction of the LD 20 is adjusted at the optimum position. The LD holder 24 is fastened and fixed to the apparatus housing 10. Note that the terminals 23 of the LD 20 of the present embodiment are arranged on the circumference corresponding to the vertices of a right-angled isosceles triangle.
On the other hand, the terminals 23 of the LD 20 after adjustment are all inserted into the corresponding through holes 31 of the driver board 30 at a time, and soldering connection is performed at a portion protruding from the driver board 30. It has been broken.

  Thereby, the beam emitted from the can 22 side of the LD 20 passes through the opening 11 opened in the stepped portion 10 c of the apparatus housing 10, and the collimator attached to the inside of the apparatus housing 10 in the opening 11. Aberration correction is performed by the lens 12 to produce substantially parallel light. The beam that has passed through the collimator lens 12 is subjected to exposure scanning for forming a latent image on, for example, a photosensitive member by various lenses (not shown), mirrors, polygon mirrors, and the like.

As shown in FIG. 4, the apparatus housing 10 of the present embodiment is composed of two layers, an upper layer portion 10a and a lower layer portion 10b, and the bottom portion of the upper layer portion 10a is processed by the upper layer portion 10a. An opening is appropriately provided so that the beam travels toward the lower layer portion 10b, and the movement of the beam is transmitted by a member such as a prism. Further, a stepped portion 10c having four steps for mounting the LD 20 is provided on one side (the front side in the figure) of the upper layer portion 10a.
FIG. 5 schematically shows the optical path of the beam in the upper layer portion 10a of the apparatus housing 10. The beam that has passed through the collimator lens 12 is reflected by the mirror 13, and the lens system 14 and the mirror 15 are reflected. The lens reaches the polygon mirror 17 through the lens system 16. Then, the beam reflected by the polygon mirror 17 is guided to the prism 19 through the fθ lens system 18, and from here to the lower layer portion 10 b side of the apparatus housing 10. A beam that passes through various mirrors and lenses (not shown) is emitted from the lower layer portion 10b to the outside of the apparatus housing 10 (specifically, emitted toward the front side of the drawing).

In the present embodiment, the four LDs 20 are attached to the stepped portion 10c so that the optical path lengths from the LD 20 to the polygon mirror 17 are equalized. Therefore, the optical characteristics are improved and the optical characteristics are improved. It is possible to reduce the number of parts, simplify the design of the optical scanning device,
Cost reduction and downsizing will be made.

Here, an outline of a method of attaching the LD 20 as an electronic element will be described based on the flow of FIG.
In the figure, first, the LD 20 is temporarily fixed to the apparatus housing 10 (specifically, the stepped portion 10c) (step S1). Next, the LD 20 is adjusted to the optimum beam position while moving slightly with the temporarily fixed state, and the appropriate position is determined (step S2). Then, the LD 20 is fixed to the apparatus housing 10 at the proper position and held (step S3).
Next, a pair of terminal aligning jigs (jig main bodies), which will be described later, are mounted on the terminal 23 side of the LD 20, and the terminals 23 are positioned and aligned so as to be guided to positions corresponding to the through holes 31 of the driver substrate 30 (step). S4). As a result, the terminals 23 are aligned so as to be easily inserted into the corresponding through holes 31.
The driver board 30 is attached to the apparatus housing 10 while the aligned terminals 23 of the LD 20 are collectively inserted into the through holes 31 of the driver board 30 (step S5). Then, after removing the terminal alignment jig, the terminal 23 protruding from the driver board 30 is soldered so that the LD 20 can be energized (steps S6 to S7). The removal of the terminal aligning jig may be performed after the terminal 23 is soldered.

  Here, the outline | summary of the terminal alignment jig | tool used for the attachment structure of LD20 in this Embodiment is demonstrated using figures. FIG. 7A shows a state in which the terminals 23 are aligned by the terminal aligning jig when the terminals 23 of the LD 20 positioned and held in the apparatus housing 10 are collectively inserted into the through holes 31 of the driver board 30. (B) shows the terminal alignment jig itself. In the present embodiment, when the terminals 23 are positioned and aligned, a pair of jig main bodies, that is, the first jig main body 40 and the second jig main body 50 are used as the terminal aligning jig, and the apparatus housing 10 is used. The two jig main bodies 40 and 50 are superposed on the terminal 23 of the LD 20 fixed to the head. Here, the schematic configuration of the terminal alignment jig is shown.

The first jig body 40 includes a first guide groove 41 that is cut so that the terminal 23 fits in the moving direction, and the second jig body 50 also faces the moving direction in the terminal 23. Is provided with a second guide groove 51 cut so as to fit. And the terminal alignment hole 60 is formed when these 1st guide grooves 41 and the 2nd guide grooves 51 overlap a part of each other. That is, the first jig main body 40 and the second jig main body 50 are overlapped while being moved, whereby the terminal 23 is guided by the first guide groove 41 and the second guide groove 51, and the position and posture of the terminal 23. Will gradually change. And finally, the terminal 23 fits into the terminal alignment hole 60 which overlaps with the first guide groove 41 and the second guide groove 51, and the position of the terminal 23 is regulated and aligned.
Thus, the terminals 23 are regulated by the first jig body 40 and the second jig body 50 so that all the terminals 23 of the LD 20 can be directed in substantially the same direction. It becomes easy to insert into the through holes 31 of the driver board 30 all at once.

FIG. 7 shows the schematic configuration of the first jig main body 40 and the second jig main body 50. Next, a specific terminal alignment jig (first jig main body) for aligning the terminals 23 in the present embodiment. 40 and the second jig body 50) and the driver board 30 will be described. FIGS. 8A and 8B show the appearance of the first jig body 40 and the second jig body 50, respectively, and FIG. 8C shows the appearance of the driver board 30. FIG.
The first jig body 40 is provided with a first guide groove 41 for guiding the terminal 23 of the LD 20 to the corresponding through hole 31 of the driver substrate 30 at a position corresponding to the four LD 20. 41 is constituted by three lateral grooves (specifically 41 a to 41 c) that match the terminal 23.
On the other hand, in the second jig body 50, the second guide groove 51 is provided at a position corresponding to the four LDs 20, and the second guide groove 51 has two longitudinal grooves (specifically 51a, 51b).

  Furthermore, the first jig body 40 in the present embodiment includes slide grooves 43 and 44 that can slide with respect to a positioning projection (not shown) of the apparatus housing 10 at two positions on the left and right in the drawing. The terminal 23 is slid in the X direction in the figure with respect to the positioning protrusion of the apparatus housing 10 so that the terminal 23 can easily correspond to the position of the through hole 31 provided at a predetermined position of the driver board 30. The first guide groove 41 includes a shallow groove-shaped central groove 41a and deeper groove-shaped grooves 41b and 41c. In particular, the latter groove shape is cut at the cut opening. Since the width is wider than the deep part, the terminal 23 can easily enter the first guide groove 41. In this example, since the four LDs 20 are arranged so as to be slightly oblique from the horizontal direction in the drawing, the four first guide grooves 41 are also arranged slightly obliquely.

  On the other hand, the second jig body 50 is provided with slide grooves 53 and 54 that are slidable with respect to the positioning protrusions of the apparatus housing 10 at two locations, like the first jig body 40, and On the other hand, the first jig body 40 is moved from the Y direction substantially orthogonal to the first jig body 40. Similarly to the first guide groove 41, the second guide groove 51 has a shape in which the cut opening portion of the longitudinal groove is wider than the cut deep portion and the terminal 23 can easily enter. In this example, one of the vertical grooves 51b has a wide width. However, a groove shape similar to that of the other vertical groove 51a may be formed here.

  In the present embodiment, the first jig body 40 and the second jig body 50 are moved in directions substantially orthogonal to each other, so that the terminal alignment holes 60 are formed at the positions where the groove shapes overlap each other. Then, the terminal 23 having the aligned posture reaches a position corresponding to the through hole 31 of the driver board 30.

  In the present embodiment, the driver board 30 is mounted after the terminals 23 are positioned and aligned using such a pair of jig main bodies 40 and 50. Since the positioning holes 33 and 34 into which the 10 positioning protrusions are fitted are provided, the positioning holes 33 and 34 facilitate positioning with the apparatus housing 10, and the jig main bodies 40 and 50. The positional relationship between the driver board 30 and the driver board 30 is stabilized. In the present embodiment, one of the positioning hole portions 33, 34 has an oval shape, but this is an oval shape assuming various dimensional tolerances. There is no particular limitation to this shape.

  Further, as the through holes 31 of the driver board 30 corresponding to the terminals 23 of the LD 20 in the present embodiment, a central through hole 31a and through holes 31b and 31c at both ends are provided. Since the diameter is slightly larger than the thickness, the batch insertion of the terminals 23 into the driver board 30 is further facilitated. In the drawing, a circle with a part of the notch drawn on the outer periphery of the through hole 31 is a silk character indicating the LD 20 and is described for easy understanding. Reference numerals 35 and 36 denote screw holes for fixing the driver board 30 to the apparatus housing 10 after the terminals 23 are collectively inserted into the driver board 30.

Next, a specific mounting method until the driver board 30 according to the present embodiment is mounted will be described in detail with a focus on the mounting flow of FIG.
As shown in FIG. 9A, the stepped portion 10 c of the apparatus housing 10 is provided with a protruding portion 101 that slightly protrudes from the stepped portion 10 c to the LD 20 side. An opening 11 for the LD 20 and two screw fixing holes 102 are provided at two locations above and below the opening 11.

On the other hand, as shown in FIG. 9B, the LD 20 has three holes (specifically, LD holes) at positions corresponding to the opening 11 and the two screw fixing holes 102, respectively. For the LD holder 24 provided with the portion 24a and the two screw holes 24b, 24c), an intermediate assembly at the stage where the LD 20 is press-fitted and fixed into the hole 24a for the LD 20 is provided as the stepped portion 10c for each LD holder 24. It will be attached to. FIG. 9C shows a state in which the LD holder 24 is fixed to the stepped portion 10c, and is screwed and fixed at two locations above and below the LD 20.
In the present embodiment, before the screw tightening and fixing, the LD holder 24 is temporarily fixed to the stepped portion 10c by lightly screwing, and a socket is attached to the terminal 23 of the LD 20 to mount the LD 20 The laser beam is adjusted so that the beam emitting direction of the LD 20 itself is directed to an appropriate position while being slightly moved or tilted for each LD holder 24 while being energized. At this time, it goes without saying that the positions of the lenses, mirrors and the like arranged in the apparatus housing 10 have already been adjusted, or are adjusted at the same time.

In this way, the LD 20 attached to the apparatus housing 10 is positioned and held with respect to the apparatus housing 10 by fixing the LD holder 24 after the adjustment with screws.
The terminal 23 of the LD 20 at the stage where it is positioned and held in this way extends in a direction substantially orthogonal to the mounting surface of the stepped portion 10c of the apparatus housing 10, and in particular, the LD20 with respect to the stepped portion 10c. Is fixed, the direction of the terminal 23 and the direction of the through hole 31 of the driver board 30 are considerably deviated from the parallel direction. For this reason, it is very difficult to insert these terminals 23 (specifically, twelve terminals) into the through holes 31 of the driver board 30 and attach them together.

In the present embodiment, by using the first jig main body 40 and the second jig main body 50 as the terminal aligning jig, the positions and postures of the terminals 23 having different directions from the through holes 31 are aligned. It is possible to easily insert the terminal board into the driver board and to easily attach the driver board 30.
FIG. 10A shows the state of the terminal 23 at the stage where the first jig body 40 is used among the terminal aligning jigs. With respect to the two positioning projections 103 and 104 of the apparatus housing 10. By inserting the slide grooves 43 and 44 of the first jig body 40 and sliding the first jig body 40 in the X direction, the terminals 23 (23a to 23c) of the LD 20 can be directed in the X direction. . At this time, the terminals 23 of the four LDs 20 can be simultaneously actuated, and all the terminals 23 of the respective LDs 20 are position-regulated and aligned.

  Next, in this state, the second jig main body 50 is fitted into the positioning protrusions 103 and 104, and the second jig main body 50 is slid in the Y direction substantially orthogonal to the X direction. Furthermore, the position is also regulated and aligned in the Y direction. When the driver board 30 is mounted, the terminals 23 of the LD 20 can be guided to the positions of the through holes 31, and all the terminals 23 are inserted into the through holes 31 of the driver board 30. Can be easily inserted.

FIG. 10B shows a state in which the driver board 30 is screwed and fixed with two screw holes 35 and 36 after the driver board 30 is mounted. A state in which the positioning holes 33 and 34 of the driver board 30 are regulated is also shown. In the figure, reference numerals 37 and 38 denote connectors, for example, surface-mounted components on the driver board 30.
In this way, when the driver substrate 30 is fixed, the second jig body 50 and the first jig body 40 are separated and removed, and the terminal 23 is soldered, thereby completing the operation. At this time, the second jig main body 50 and the first jig main body 40 may be removed after soldering. In this case, the flux during soldering is scattered to the LD 20 side through the through hole 31. There is also an effect of preventing.

  FIG. 11 shows the first jig shown by the solid line in which the shapes of the first guide groove 41 and the second guide groove 51 are slightly modified from those of the above-described embodiment (see FIG. 8). The relationship between the main body 40 and the 2nd jig | tool main body 50 shown with a broken line is shown. The guide grooves 41 and 51 of these jig main bodies 40 and 50 are all wide on the opening side and narrow on the deep side. For this reason, when each horizontal groove or vertical groove enters the terminal 23, the entry becomes smooth, and the terminals 23 are more easily regulated by positioning. The guide grooves 41 and 51 of the pair of jig bodies 40 and 50 are formed by sliding these jig bodies 40 and 50 with respect to the positioning projections 103 and 104 of the apparatus housing 10 in the X direction and the Y direction. A terminal alignment hole 60 corresponding to the terminal 23 of the LD 20 is formed at the intersecting position.

Further, the positioning protrusions 103 and 104 provided on the apparatus housing 10 side are not particularly limited as long as the jig bodies 40 and 50 can slide and the driver board 30 can be positioned.
FIG. 12 shows an example of the shape of the positioning protrusion 103 (104). For example, a step is provided in the positioning protrusion 103, and the diameter D1 of the portion where the first jig body 40 and the second jig body 50 slide is set. The gap between the driver board 30 and the jig bodies 40, 50 can be kept constant even after the driver board 30 is mounted by making the diameter larger than the diameter D2 of the portion where the driver board 30 is positioned. Removal of the main bodies 40 and 50 and mounting of parts on the surface of the driver board 30 on the side of the jig main bodies 40 and 50 can be facilitated, and the degree of freedom in designing the driver board 30 itself can be improved. Become.

  For comparison, if the terminals 23 of the LD 20 are to be inserted all together into the through holes 31 of the driver board 30 without using such a terminal aligning jig, the direction of the terminals 23 and the direction of the through holes 31 are approximately the same. If they match, it can be done with a certain degree of difficulty. However, if the direction of the terminal 23 and the direction of the through hole 31 are not aligned as in this embodiment, it is attempted to insert them all at once. It will be very difficult.

As described above, in the present embodiment, the configuration in which the LD 20 is attached to the stepped portion 10c is shown. However, when the terminal 23 of the LD 20 is oriented in the same direction as the through hole 31, the terminal alignment treatment as in this example is performed. Needless to say, a tool may be used, and in this case, the terminals 23 can be easily inserted all at once.
In the present embodiment, an example in which four LDs 20 having three terminals are used is shown, but the number of electronic elements and the number of terminals are not particularly limited.
Furthermore, in the present embodiment, an example in which the LD 20 is used has been described. However, the electronic element is not particularly limited, and may be anything that can be fixed to a member to be attached before being attached to a substrate. After the sensor is properly arranged and fixed to the apparatus housing or the like, the optical sensor terminal may be used for attaching to a single substrate.

It is explanatory drawing which shows the outline | summary of the electronic element attachment structure which concerns on this invention. It is explanatory drawing which shows the terminal alignment jig | tool used for the electronic element attachment structure of FIG. It is explanatory drawing which shows the principal part expansion of the optical scanning device in embodiment. It is explanatory drawing which shows the apparatus housing | casing of embodiment. It is explanatory drawing which shows the beam optical path of embodiment. It is a flow which shows the attachment method of embodiment. It is explanatory drawing which shows the outline | summary of the LD attachment method of embodiment, (a) shows a mode when the terminal of LD is aligned, (b) shows the terminal alignment jig to be used. (A) and (b) are two jig main bodies, (c) is explanatory drawing which shows a board | substrate. (A)-(c) is explanatory drawing which shows the attachment method of embodiment. (A) (b) is explanatory drawing which shows the attachment method of the continuation of FIG. It is explanatory drawing which shows the terminal alignment jig | tool which has the groove shape as a modification. It is explanatory drawing which shows the example of a positioning protrusion.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Mounted member, 2 ... Electronic element, 2a ... Terminal, 3 ... Board | substrate, 3a ... Terminal receiving part, 4 ... Terminal alignment jig | tool, 5 (5a, 5b) ... Jig body, 6 (6a, 6b) ... Guide groove, 7 ... Positioning alignment hole

Claims (7)

Positioning and holding the electronic element in the electronic element positioning part formed in advance on the mounted member,
Align the terminals of the positioned electronic elements using a terminal alignment jig,
An electronic element mounting structure in which terminals of electronic elements aligned with a terminal receiving portion formed in advance on a substrate are inserted so as to be mountable,
The terminal alignment jig is
Having a pair of separable jig bodies,
Each jig body is formed with a guide groove cut so that the terminal of the electronic element is movably fitted from the end position of the jig body, and the positioning of the terminal of the electronic element is regulated at the intersection of each guide groove. Positioning alignment holes can be formed,
When aligning the terminals of the electronic elements, the terminals of the electronic elements are positioned and aligned by positioning alignment holes formed by overlapping a part of the pair of jig bodies.
An electronic element mounting structure comprising: removing a pair of jig bodies from an electronic element by separating the pair of jig bodies after aligning terminals of the electronic elements. In the electronic element mounting structure according to claim 1,
2. An electronic element mounting structure, wherein a plurality of the electronic elements are attached to a member to be attached. The electronic element mounting structure according to claim 2,
The electronic element mounting structure is characterized in that the electronic element is positioned and held by a mounting member so as to be inclined with respect to the substrate. A terminal aligning jig that aligns the terminals of the electronic elements that are positioned and held on the attached member, and is used for collectively inserting the terminals of the electronic elements into a terminal receiving portion that is formed in advance on the substrate,
Having a pair of separable jig bodies,
Each jig body is formed with a guide groove that is cut so that the terminal of the electronic element is movably fitted from the end position of each jig body,
It is possible to form a terminal alignment hole in which the terminals of the electronic element are positioned and aligned at the intersection of these guide grooves,
When aligning the terminals of the electronic elements, the terminals of the electronic elements are positioned and aligned by positioning alignment holes formed by overlapping a part of the pair of jig bodies.
A terminal alignment jig, wherein a pair of jig bodies are removed from an electronic element by separating the pair of jig bodies after terminal alignment of the electronic elements. In the terminal alignment jig according to claim 4,
The said guide groove is provided with the shape which spreads along the direction which overlaps when a pair of jig | tool main body forms a terminal alignment hole, The terminal alignment jig characterized by the above-mentioned. In the terminal alignment jig according to claim 4,
The pair of jig bodies is a terminal alignment jig that is positioned and regulated by a positioning protrusion protruding from the attached member when the terminal alignment hole is formed. When mounting the terminal of the electronic element on the terminal receiving portion formed in advance on the substrate,
A positioning and holding step for positioning and holding the electronic element in the electronic element positioning portion formed in advance on the mounted member;
Each jig body has a pair of separable jig bodies, and a guide groove is formed in each jig body so that the terminal of the electronic element is movably fitted from the end position of the jig body. The terminal of the electronic element that is positioned and held by the mounted member in the positioning and holding process is regulated using a terminal aligning jig that can form a positioning and aligning hole that can align and regulate the terminals of the electronic element at the position to be positioned. Terminal alignment process to align,
A terminal insertion step for collectively inserting the terminals aligned in the terminal alignment step into the terminal receiving portion of the substrate so that they can be mounted;
An electronic element mounting method comprising: a detaching step of separating the terminal aligning jig from the terminal of the electronic element by separating the pair of jig bodies after the terminal inserting step.

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