JP2008288077A - Terminal mounting structure - Google Patents

Abstract

Provided is a terminal mounting structure capable of easily mounting a terminal to a printed circuit board.
A terminal mounting structure includes a voltage detection terminal connected to each battery constituting a high voltage battery pack, a printed circuit board mounted with a voltage detection circuit connected to the terminal, have. The terminal 3 includes a first connection portion 31 connected to the battery 11 side, a second connection portion 32 connected to the wiring pattern 21 of the printed circuit board 2, and the first connection portion 31 and the second connection. And an elastically deformable connecting portion 33 that connects the portion 32. Further, the printed board 2 is provided with a slit 22 provided to pick up the outer edge 20 a and the wiring pattern 21. The second connection portion 32 is brought into contact with the outer edge 20a, is inserted into the slit 22 while being moved along the outer edge 20a, and is positioned in the vicinity of the wiring pattern 21.
[Selection] Figure 4

Description

  The present invention relates to a voltage detection terminal mounting structure for detecting the voltage of a battery of a high voltage battery pack of an electric vehicle including a hybrid car, for example.

  FIG. 8 shows one form of a conventional terminal mounting structure (see, for example, Patent Documents 1 to 3).

  In the terminal mounting structure shown in FIG. 8, a voltage detection terminal 103 connected to a battery-to-battery bus bar 116 for connecting a plurality of batteries 111 constituting a high-voltage battery pack 118 of an electric vehicle in series is provided on the printed circuit board 102. And inserted into the through-hole 122, and connected to the wiring pattern provided on the printed circuit board 102 by soldering. The printed circuit board 102 is connected to a voltage detection circuit (not shown). In FIG. 8, 111 a is an electrode of the battery 111. Reference numeral 113 denotes a band for fixing the plurality of batteries 111 to each other.

Further, the terminal 103 has a flexible structure that can absorb a crack when the external force is applied in order to prevent a crack or the like from occurring in the solder portion 105 that is a connection portion with the printed circuit board 102. Specifically, in order to make the terminal 103 bend easily, the terminal 103 is formed using a thin metal plate.
JP 2005-122911 A JP-A-4-26090 JP-A-4-215283

  However, since the terminal 103 described above is designed to bend easily, the terminal 103 has low rigidity and is bent due to its own weight. Therefore, it is difficult to align the terminal 103 when inserted into the through hole 122. was there.

  Moreover, although the terminal 103 mentioned above is provided one by one with respect to all the batteries 111, since it is difficult to insert the terminal 103 into the through hole 122 as described above, a plurality of terminals 103 are collectively included. Therefore, it was extremely difficult to insert into each through hole 122. For this reason, in attaching the terminals 103 to the printed circuit board 102, each terminal 103 must be inserted into each through hole 122 one by one, and there is a problem that it takes a long time.

  Therefore, the present invention focuses on the above-described problems, and an object of the present invention is to provide a terminal mounting structure that allows a terminal to be easily mounted on a printed board.

  In order to achieve the above object, the invention described in claim 1 is a terminal mounting structure for mounting a terminal to a printed circuit board, and includes a first connection portion connected to an electronic component, a wiring pattern of the printed circuit board, and the like. The terminal having a second connecting portion to be connected, and an elastically deformable connecting portion for connecting the first connecting portion and the second connecting portion, and the wiring pattern arranged on the surface of the insulating substrate. And the printed circuit board provided with a slit formed by cutting out the insulating substrate across the outer edge of the insulating substrate and the wiring pattern, and the second connecting portion is connected to the outer edge of the insulating substrate. And is inserted in the slit while being moved along the outer edge, and is positioned in the vicinity of the wiring pattern.

  According to a second aspect of the present invention, in the first aspect of the present invention, the cross-sectional shape of the second connection portion along the planar direction of the insulating substrate is an elongated shape, and the second connection portion is inserted into the slit. The slits are provided so that the longitudinal direction of the cross-sectional shape of the second connecting portion in a state of being aligned with the longitudinal direction of the slits.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the slit has a pick-up portion whose width gradually decreases from the outer edge toward the wiring pattern. It is characterized by being.

  The invention described in claim 4 is the invention described in any one of claims 1 to 3, wherein the slits are spaced from each other along a direction perpendicular to the longitudinal direction of the slit. A plurality of terminals, and the plurality of terminals are collectively inserted into the plurality of slits.

  The invention described in claim 5 is the invention described in claim 4, wherein the plurality of terminals are collectively inserted into the plurality of slits in a state of being connected to each other by a chain band, and are disconnected after the insertion. It is characterized by this.

  The invention described in claim 6 is the invention described in claim 4 or 5, wherein the plurality of terminals are held in a state of being arranged in accordance with the arrangement pitch of the plurality of slits. And a holding member attached to the printed circuit board together with the terminal.

  According to the first aspect of the present invention, the first connection portion connected to the electronic component, the second connection portion connected to the wiring pattern of the printed circuit board, the first connection portion and the second connection portion. A terminal having an elastically deformable connecting portion for connecting the connecting portion to the connecting portion, and the wiring pattern is routed on a surface of the insulating substrate, and the insulating substrate is extended across an outer edge of the insulating substrate and the wiring pattern. The printed circuit board provided with a notched slit, and the second connecting portion is brought into contact with the outer edge of the insulating substrate and inserted into the slit while being moved along the outer edge. Since the terminal is positioned in the vicinity of the wiring pattern, the terminal is inserted in a through hole provided in the printed circuit board, and the terminal is attached to the printed circuit board. easily It can be attached to the PC board. Also, since the terminal is slid along the plane of the printed circuit board and attached to the printed circuit board, the tip of the terminal fails to be inserted into the through hole as in the conventional terminal mounting structure, and the terminal collides with the printed circuit board. There is no risk of deformation.

  According to the invention described in claim 2, the second connecting portion has a long and narrow cross-sectional shape along the plane direction of the insulating substrate, and the second connecting portion is inserted into the slit. Since the slit is provided so that the longitudinal direction of the cross-sectional shape of the connecting portion coincides with the longitudinal direction of the slit, the outer edge of the insulating substrate of the second connecting portion and the inner surface of the slit are provided. The contact area can be reduced, and therefore the second connection portion can be smoothly inserted into the slit without being caught. Therefore, the terminal can be more easily attached to the printed board.

  According to the invention described in claim 3, since the slit has a pick-up portion whose width gradually decreases from the outer edge toward the wiring pattern, the second connection portion can be easily formed. It can be inserted into the slit. Therefore, the terminal can be more easily attached to the printed board.

  According to the invention described in claim 4, a plurality of the slits are provided at intervals along a direction orthogonal to the longitudinal direction of the slits, and a plurality of the terminals are provided in the plurality of the slits. Since it is inserted in a lump, the work time required for attaching the terminals to the printed circuit board can be shortened.

  According to the invention described in claim 5, the plurality of terminals are collectively inserted into the plurality of slits in a state of being connected to each other by a chain band, and are separated after the insertion. Therefore, it is possible to further reduce the work time required for attaching the terminal to the printed circuit board.

  According to the invention described in claim 6, the plurality of terminals are held in a state of being arranged in accordance with the arrangement pitch of the plurality of slits, and the holding member attached to the printed circuit board together with the plurality of terminals is provided. Further, since the plurality of terminals can be prevented from being bent due to their own weight or the like, the plurality of terminals can be collectively inserted into the slit with high positioning accuracy. Moreover, since this holding member is attached to the printed circuit board, it is possible to prevent the terminals from being displaced or detached from the printed circuit board during use of the printed circuit board with terminals as a finished product.

  Hereinafter, a terminal mounting structure according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a terminal mounting structure according to an embodiment of the present invention. 2 is a perspective view showing a terminal and a holding member of the mounting structure shown in FIG. FIG. 3 is a perspective view showing a state in which the terminal shown in FIG. 2 is press-fitted into the holding member. FIG. 4 is a perspective view showing a state in which the terminal shown in FIG. 3 is inserted into a slit provided on the printed board. FIG. 5 is a perspective view showing a state in which the terminals shown in FIG. 3 are inserted into slits provided on the printed circuit board. FIG. 6 is a cross-sectional view taken along line AA in FIG. FIG. 7 is a perspective view showing an embodiment of a battery pack to which the terminal mounting structure shown in FIG. 1 is applied.

  The “terminal attachment structure 1” of the present embodiment is a “terminal attachment structure 1” for attaching a voltage detection terminal 3 to a printed circuit board 2, as shown in FIG. A printed circuit board 2 and a holding member 4 are provided.

  The terminal 3 is obtained by punching and bending a thin conductive metal plate. As shown in FIGS. 2 and 3, the terminal 3 includes a first connection portion 31 connected to a later-described battery 11 as an electronic component, and a second connection connected to the wiring pattern 21 of the printed circuit board 2. And a resiliently deformable connecting portion 33 that connects the first connecting portion 31 and the second connecting portion 32 to each other.

  The first connection portion 31 is formed in a square plate shape in plan view. The first connection portion 31 is connected to a battery 11 described later via an inter-battery bus bar 16 described later.

  The second connection portion 32 is formed in a rod shape. Further, the second connection portion 32 is arranged in a direction perpendicular to the planar direction of the first connection portion 31. The second connection portion 32 is positioned in a later-described slit 22 provided in the printed circuit board 2 and is connected to a later-described wiring pattern 21 of the printed circuit board 2 by soldering. Further, reference numeral 5 in FIG. 1 denotes a solder portion that is a connection portion between the second connection portion 32 and the wiring pattern 21.

  The connection portion 33 includes a press-fit portion 33a formed in a plate shape having a rectangular shape in plan view, a first connection portion 33b extending from a corner portion of the press-fit portion 33a and continuing to the first connection portion 31; A second connecting portion 33c extending from the other corner portion of the press-fit portion 33a located diagonally to the corner portion provided with the first connecting portion 33b and connected to the second connecting portion 32; Yes.

  The press-fit portion 33 a is positioned between the first connection portion 31 and the second connection portion 32. In addition, the press-fit portion 33 a has a plane direction that is perpendicular to the first connection portion 31 and parallel to the alignment direction of the first connection portion 31 and the second connection portion 32. It is arranged. The press-fit portion 33a has two punched portions 36 formed by punching from one surface to the other surface. Such a press-fitting portion 33 a is press-fitted into a groove 42 described later of the holding member 4. Then, the terminal 3 is fixed to the holding member 4 by the press-fitting portion 33 a being press-fitted into the groove 42.

  The first connecting portion 33 b is formed in a bowl shape that is bent at a right angle in plan view, and is arranged on the same plane as the first connecting portion 31. The connecting portion between the first connecting portion 33b and the press-fit portion 33a is bent at a substantially right angle.

  The second connecting portion 33c is formed in a bar shape having the same width as the second connecting portion 32, and is bent at the center thereof so that the side away from the press-fit portion 33a is the first connecting portion 31 and the first connecting portion. It is arranged in a direction parallel to the portion 33b. Further, the connecting portion between the second connecting portion 33c and the second connecting portion 32 is bent at a substantially right angle.

  As described above, since the connecting portion 33 is formed of a thin metal plate and is three-dimensionally bent at a plurality of locations, the longitudinal direction of the second connecting portion 32 and Elastically deformable along a plurality of directions such as a parallel direction, a direction parallel to the alignment direction of the first connection portion 31 and the second connection portion 32, and a direction orthogonal to both of these two directions. It has become. Thus, when an external force is applied to the terminal 3, the external force can be absorbed by elastically deforming, that is, by bending, and it is possible to prevent the solder portion 5 from being stressed. Therefore, it is possible to prevent the solder portion 5 from being cracked and to ensure connection reliability.

  Further, such a terminal 3 constitutes a terminal chain 6 shown in FIG. 2 until it is cut in the latter half of the attaching process to the printed circuit board 2. In this terminal chain 6, a plurality of terminals 3 are arranged at intervals from each other along the longitudinal direction of a chain band 34 formed in a band shape (indicated by an arrow N in FIG. 2 and the like). Are connected to the chain 34 via connecting pieces 37. Each terminal 3 is connected in a direction in which the arrangement direction of the first connection portion 31 and the second connection portion 32 and the longitudinal direction N of the chain strip 34 are orthogonal to each other. Further, the end portion of the connecting piece 37 away from the chain band 34 is continuous with the outer edge of the first connecting portion 31. That is, the second connection portion 32 is positioned at a position farthest from the chain band 34.

  Such a terminal chain 6 is wound around a cylindrical reel 7 and stored, and is pulled out from the reel 7 at the time of use. At this time, a positioning pin provided in a conveying means such as a belt conveyor is passed through a through hole 35 provided in the chain band 34 and is conveyed while being positioned at a predetermined position.

  The printed circuit board 2 is a well-known printed circuit board in which a wiring pattern 21 made of metal foil or the like is routed on the surface of a rectangular insulating substrate 20 formed in a thin plate shape. A voltage detection circuit (not shown) is mounted on the upper surface of the printed board 2. This voltage detection circuit is connected to each of the terminals 3 connected to each battery 11 described above, and the voltage for each battery 11 and the battery assembly 17 (meaning a combination of all the batteries 11). This circuit detects an intermediate voltage, the total voltage of the battery assembly 17, and the like. The detected voltage, intermediate voltage, total voltage, etc. for each battery 11 are used as data for detecting abnormality of the battery assembly 17 or data for adjusting the state of charge of the battery assembly 17. It is used as such.

  In addition, as shown in FIG. 1, the printed circuit board 2 is provided with a plurality of slits 22 in which the insulating substrate 20 is cut out across the outer edge 20 a of the insulating substrate 20 and the wiring pattern 21. In the present embodiment, the slits 22 are provided at equal intervals on each of the long sides of the insulating substrate 20. Further, the interval between the adjacent slits 22 is equal to the width of the two collapsed batteries 11 of the battery assembly 17 described later. Further, the interval between the terminals 3 adjacent to each other in the terminal chain 6 described above is also equal to the interval between the slits 22, that is, the width of the two collapses of the battery 11.

  As shown in FIG. 1 and FIG. 4, the slit 22 is connected to the linear portion 22 b extending linearly in a direction parallel to the outer edge forming the short side of the insulating substrate 20, the linear portion 22 b, and the linear portion. The pickup portion 22a is arranged closer to the outer edge that forms the longer side of the insulating substrate 20 than 22b. The pick-up portion 22a is formed so that the width gradually decreases from the outer edge forming the long side of the insulating substrate 20 toward the wiring pattern 21, that is, the straight portion 22b. The pick-up portion 22a opens at the outer edge.

  Further, the second connecting portion 32 of the terminal 3 described above is brought into contact with the outer edge 20a forming the long side of the insulating substrate 20, and is inserted into the slit 22 described above while being moved along the outer edge 20a. It is positioned in the vicinity of the wiring pattern 21, that is, on the back side in the insertion direction of the linear portion 22b. At this time, the second connection portion 32 is guided by the pick-up portion 22a and is positioned on the straight portion 22b side in the insertion direction (indicated by an arrow S in FIG. 4), so that the width is narrower than the pick-up portion 22a. The second connecting portion 32 can be easily positioned on the straight portion 22b. Further, even when the interval between the terminals 3 adjacent to each other in the terminal chain 6 is slightly larger or smaller than the interval between the adjacent linear portions 22b due to dimensional tolerance or bending of the terminals 3, a wide opening is formed. By being picked up by the picked-up pick-up part 22a, each second connecting part 32 can be guided into the corresponding straight line part 22b.

  Further, as shown in FIG. 6, the second connection portion 32 described above has a rectangular shape (a cross-sectional shape along the plane direction of the insulating substrate 20, that is, a cross-sectional shape along the plane direction of the first connection portion 31). (Elongated shape). The short side direction of the rectangle is the thickness direction of the metal plate constituting the terminal 3. The long side direction of the rectangle is parallel to the arrangement direction of the first connection portion 31 and the second connection portion 32. In a state where the second connection portion 32 is inserted into the slit 22 described above, the long side direction of the cross-sectional shape of the second connection portion 32, that is, the longitudinal direction, and the longitudinal direction of the slit 22, The slits 22 are provided so as to match (in parallel). As a result, the contact area of the second connecting portion 32 to the outer edge of the insulating substrate 20 and the inner surface of the slit 22 can be reduced. For this reason, the second connecting portion 32 can be smoothly pulled without being caught. Can be inserted in.

  The holding member 4 is made of an insulating synthetic resin, and as shown in FIG. 2, extends from the main body portion 40 formed in the shape of a quadrangular column and opposite directions from both ends of the main body portion 40. And a pair of extending portions 41.

  The main body portion 40 is provided with a plurality of grooves (five in the illustrated example) for positioning the press-fit portions 33a of the terminals 3 described above. The plurality of grooves 42 extend in parallel with the width direction of the main body portion 40 and are spaced apart from each other along the longitudinal direction of the main body portion 40. The intervals between the adjacent grooves 42 are the intervals between the slits 22 of the printed circuit board 2 described above, the intervals between the adjacent terminals 3 of the terminal chain 6 described above, and a battery assembly described later. It is equal to the width of 2 squash of 17 batteries 11.

  In the terminal chain 6 described above, the longitudinal direction N of the chain band 34 is the longitudinal direction of the main body 40 after the chain band 34 is cut by a predetermined length (in the illustrated example, the length of the terminal 3 is 5). The press-fit portions 33a of the terminals 3 are press-fitted into the grooves 42 in the direction from the one outer edge of the main body portion 40 toward the back side of the grooves 42. Thus, the terminal of the state which was cut | disconnected by press-fitting the some terminal 3 to the holding member 4 in the state which the terminal 3 comprised the terminal chain | linkage body 6, ie, the state in which the some terminal 3 was mutually connected. 3 can be pressed into the holding member 4 one by one more efficiently.

  A procedure for attaching the terminal 3 to the printed circuit board 2 in the terminal attachment structure 1 having the above-described configuration will be described below.

  First, the terminal chain 6 cut to a predetermined length is overlaid on the main body portion 40 of the holding member 4 as shown in FIG. 3, and the press-fitting portions 33a of the terminals 3 are press-fitted into the grooves 42 to form the terminal chain. The body 6 is attached to the holding member 4.

  Next, the holding member 4 in a state where the terminal chain 6 is held is brought close to the printed circuit board 2, and the second connection portions 32 of the terminals 3 are brought into contact with the outer edge of the insulating substrate 20 provided with the slits 22, Then, it is inserted into each slit 22 along the insertion direction S while being moved along the outer edge, and positioned on the back side of the slit 22, that is, in the vicinity of the wiring pattern 21, as shown in FIG.

  At this time, as shown in FIG. 5, the holding member 4 is positioned on the lower side of the printed circuit board 2, the main body portion 40 is positioned at a position along the long side of the insulating substrate 20, and the extending portion 41 is It is positioned at a position along the short side of the insulating substrate 20. Thus, the holding member 4 holding the terminal chain 6 on one of the two long sides of the printed circuit board 2 is attached, and in the same manner, the terminal chain 6 on the other long side of the printed circuit board 2. The holding member 4 in a state of holding is attached.

  Thus, by attaching the terminal chain 6 together with the holding member 4 to the printed circuit board 2, it is possible to prevent the plurality of terminals 3 from being bent due to their own weight and the like, and the plurality of terminals 3 are slit 22 with high positioning accuracy. Can be inserted in a batch. Further, it is possible to prevent the terminals 3 from being displaced or detached from the printed circuit board 2 during use of the printed circuit board 2 with the terminals 3 (the state shown in FIG. 1) as a finished product.

  Next, the connection location between the first connection portion 31 and the connection piece 37 of each terminal 3 is cut. Then, on the upper surface of the printed circuit board 2, the second connection portion 32 positioned in the vicinity of the wiring pattern 21 and the wiring pattern 21 are connected by soldering to form the solder portion 5 shown in FIG. 1. In this way, the terminal 3 is attached to the printed circuit board 2.

  As shown in FIG. 7, the printed circuit board 2 with the terminals 3 assembled in the above-described procedure is placed on the upper surface of the battery assembly 17, and the first connection portions 31 of the terminals 3 are connected to the inter-battery bus bars 16. It is joined to the tab 15 by spot welding or the like to constitute a high voltage battery pack 18 of an electric vehicle including a hybrid car.

  In the battery assembly 17, a plurality of batteries 11 are arranged in parallel, electrodes 11a provided on the upper surface of each battery 11 are connected to each inter-bus bus bar 16 by welding or the like, and each battery 11 is connected in series. ing. Then, end plates 12 made of a synthetic resin are arranged at both ends of the plurality of batteries 11 arranged in parallel, and the end plates 12 are connected to each other by a band 13 formed in a band shape. Are fixed to each other.

  The inter-battery bus bar 16 is made of a conductive metal and has a U-shaped bus bar main body 14 and a plate-like tab 15 provided in the center of the bus bar main body 14. ing. The mutually opposite ends of the bus bar main body 14 are connected to the electrodes 11a of the batteries 11 adjacent to each other by welding or the like. The tab 15 is arranged in such a manner that the plane direction thereof is parallel to the plane direction of the first connection portion 31 in a state where the printed circuit board 2 with the terminals 3 is placed on the upper surface of the battery assembly 17. Yes. The tab 15 is overlapped with the first connection portion 31 and joined by spot welding or the like.

  The battery pack 18 further includes a JB (junction box) (not shown) disposed adjacent to the side of the battery assembly 17. In such a battery pack 18, the electrodes 11 a and JB of the battery 11 disposed at both ends of the battery assembly 17 are connected by a wire harness or the like, and the current from the battery assembly 17 has a JB relay or fuse. And distributed (branched) to devices such as hybrid motors, power steering systems and air conditioners.

  The voltage detection circuit mounted on the printed circuit board 2 includes the voltage of each battery 11 from the signal of the terminal 3 connected to each battery 11 through the inter-battery bus bar 16, the intermediate voltage of the battery assembly 17, and the battery. The total voltage of the assembly 17 is detected.

  According to this embodiment, by providing the slit 22 on the printed circuit board 2, the second connecting portion 32 is brought into contact with the outer edge 20a of the insulating substrate 20, and the slit 22 is moved while being moved along the outer edge 20a. The terminal 3 can be easily attached to the printed circuit board 2 because it can be inserted into the wiring pattern 21 and positioned in the vicinity of the wiring pattern 21. In addition, since the slit 22 is provided in the printed circuit board 2, a pick-up portion 22 a that gradually decreases in width from the outer edge 20 a toward the wiring pattern 21 can be provided in the slit 22. 3 can be inserted into the printed circuit board 2 more easily, and at the same time, a plurality of terminals 3 can be simultaneously inserted into the plurality of slits 22. The work time required for attaching the terminal 3 to the printed circuit board 2 can be shortened.

  Further, since the terminals 3 connected to each other as the terminal chain 6 are press-fitted into the holding member 4 and the plurality of terminals 3 are collectively attached to the printed circuit board 2 together with the holding member 4. Thus, it is not necessary to position the terminals individually, and the work time required for attaching the terminals 3 to the printed circuit board 2 can be further shortened. And since this holding member 4 is attached to the printed circuit board 2, when the printed circuit board 2 with the terminals 3 is mounted on the battery pack 18 and used, the terminals 3 may be displaced or detached from the printed circuit board 2. In addition, it is possible to prevent stress from being applied to the connection portion between the first connection portion 31 and the tab 15 of the inter-battery bus bar 16, and the connection portion between the second connection portion 32 and the solder portion 5 of the printed circuit board 2 and the second connection portion. The connection reliability of the connection part 31 of 1 and the connection part of the tab 15 is securable.

  The battery pack 18, the battery assembly 17, and the inter-battery bus bar 16 shown in FIG. 7 are merely examples, and the terminal mounting structure 1 can be applied to inter-battery bus bars or batteries having other configurations.

  The terminal mounting structure 1 of the above-described embodiment is for detecting the voltage of the battery 11 of the high-voltage battery pack 18 of the automobile, and has various electronic components other than the battery and a printed board. It is also possible to apply the terminal mounting structure 1 of the above-described embodiment to various devices.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

It is a perspective view which shows the attachment structure of the terminal which concerns on one Embodiment of this invention. It is a perspective view which shows the terminal and holding member of the attachment structure shown by FIG. It is a perspective view which shows a mode that the terminal shown by FIG. 2 is press-fitted in a holding member. It is a perspective view which shows a mode that the terminal shown by FIG. 3 is inserted in the slit provided in the printed circuit board. It is a perspective view which shows a mode that the terminal shown by FIG. 3 was inserted in the slit provided in the printed circuit board. It is sectional drawing along the AA line in FIG. It is a perspective view which shows one form of the battery pack to which the attachment structure of the terminal shown by FIG. 1 is applied. It is sectional drawing which shows one form of the conventional terminal attachment structure.

Explanation of symbols

1 Terminal mounting structure 2 Printed circuit board 3 Terminal 4 Holding member 11 Battery (electronic component)
DESCRIPTION OF SYMBOLS 20 Insulation board | substrate 20a Outer edge 21 Wiring pattern 22 Slit 22a Pickup part 31 1st connection part 32 2nd connection part 33 Connection part

Claims (6)

A terminal mounting structure for mounting a terminal on a printed circuit board,
A first connection part connected to the electronic component, a second connection part connected to the wiring pattern of the printed circuit board, and an elastically deformable connection for connecting the first connection part and the second connection part. A terminal, and
The wiring pattern is arranged on the surface of the insulating substrate, and the printed circuit board provided with a slit formed by cutting out the insulating substrate across the outer edge of the insulating substrate and the wiring pattern, and
The second connection portion is brought into contact with the outer edge of the insulating substrate, and is inserted into the slit while being moved along the outer edge, and is positioned in the vicinity of the wiring pattern. Mounting structure.   The cross-sectional shape along the plane direction of the insulating substrate of the second connection portion is a long and narrow shape, and the longitudinal direction of the cross-sectional shape of the second connection portion in a state of being inserted into the slit, The terminal mounting structure according to claim 1, wherein the slit is provided so as to coincide with a longitudinal direction of the slit.   3. The terminal mounting structure according to claim 1, wherein the slit has a pick-up portion whose width gradually decreases from the outer edge toward the wiring pattern. 4.   The slit is provided in plural along the direction orthogonal to the longitudinal direction of the slit, spaced apart from each other, and the plurality of terminals are collectively inserted into the plurality of slits. The terminal mounting structure according to any one of claims 1 to 3.   5. The terminal mounting structure according to claim 4, wherein the plurality of terminals are collectively inserted into the plurality of slits in a state of being connected to each other by a chain band, and are disconnected after being inserted.   5. The apparatus according to claim 4, further comprising a holding member that holds the plurality of terminals in a state of being arranged in accordance with an arrangement pitch of the plurality of slits and is attached to the printed board together with the plurality of terminals. The terminal mounting structure according to claim 5.

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