JP5195992B2 - Board connector mating structure - Google Patents

Description

  The present invention provides a first housing for protecting a printed circuit board provided with a contact terminal, and a second housing provided with a spring terminal that is fitted in the first housing and electrically connected to the contact terminal. It is related with the fitting structure of the connector for board | substrates provided with these.

  Conventionally, various methods have been proposed for a board connector called a card edge connector in which contact terminals are formed on the edge of a printed circuit board (see, for example, Patent Documents 1 to 3).

  The “card edge connector” described in Patent Document 1 is a conductive terminal in which both inner housings are rotated by sliding contact between the inclined surface of the rib and the sliding contact portion when the printed circuit board is inserted into the fitting opening of the substrate holding body. The abutting portions of the printed circuit board come into close contact with each other so as to be sandwiched between the upper and lower terminals.

  In addition, the “board holding structure” described in Patent Document 2 is provided with a posture correction member that holds the connection edge of the printed board from both sides so as to protrude from the fitting surface of the board holding body, thereby connecting the printed board. The edge portion is corrected so as to protrude in a substantially vertical direction without being deflected in the vertical direction with respect to the fitting surface, so that the printed board is smoothly fitted.

  In the “connector” described in Patent Document 3, when the plug housing is inserted into the receptacle connector, the first slide insertion surface is formed by the tapered inclined surface from the first slide guide surface to the second slide guide surface. Guided to a flat surface that forms a step, the bent contact portion of each plug-type contact is pressed into contact with the pin-like contact portion of each receptacle-type contact to be in a fitted state.

Japanese Patent Laid-Open No. 7-22126 Japanese Patent Laid-Open No. 7-57828 JP 2006-244744 A

  Here, a conventional board connector fitting structure will be described with reference to FIGS. In FIG. 24, the printed circuit board is omitted. The conventional board connector shown in FIGS. 24 to 26 is provided with a male housing 510 provided integrally with the housing C and provided with a through hole 511 through which the printed circuit board P is inserted, and fitted into the male housing 510. Then, there is provided a female housing 520 provided with spring terminals 530 that are in contact with the contact terminals P1 arranged on the edge of the printed circuit board P to make electrical connection.

  The female housing 520 includes an inner housing 521 and an outer housing 522. The male housing 510 is inserted between the outer housing 522 and the inner housing 521. A pair of spring terminals 530 are provided so as to face the inner surface of the inner housing 521, and the pair of spring terminals 530 are inserted into the pair of spring terminals 530, so that the pair of spring terminals 530 are connected to the printed circuit board P. It contacts the contact terminal P1 provided on both surfaces of the edge.

  However, when the printed circuit board P is inserted and the spring terminal 530 comes into contact with the contact terminal P <b> 1 and the spring terminal 530 is elastically deformed, the elastic force by the spring terminal 530 acts on the inner side surface of the inner housing 521. By inserting the male housing 510 between the inner housing 521 and the outer housing 522, the deformation of the inner housing 521 is restricted by the male housing 510, but a clearance is provided to facilitate the fitting of the male housing 510. Since it is made large to some extent, there is a margin between the inner housing 521 and the male housing 510. In such a state, the inner housing 521 whose inner surface is pressed by the elastic force of the spring terminal 530 is warped by this pressing force. Since the inner housing 521 is warped, the distance between the inner housing 521 and the printed circuit board P is increased, and the elastic force of the spring terminal 530 is reduced, so that the contact force of the spring terminal 530 to the contact terminal P1 is reduced. End up.

  If it becomes so, there exists a possibility that the printed circuit board P may become easy to remove | omit or contact failure will occur easily.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a board connector fitting structure that can reliably contact a spring terminal and a contact terminal by preventing a decrease in the contact force of the spring terminal.

  In the board connector fitting structure of the present invention, a first housing for holding a printed circuit board having contact terminals arranged at the edge portion through the inside from the rear end portion and the first housing is fitted. Thus, a spring terminal that contacts the contact terminal by an elastic force and is electrically connected to the contact terminal is provided corresponding to the contact terminal, and a holding portion that supports the spring terminal is provided. And a second housing, wherein the second housing is provided with a protruding portion protruding from the tip of the holding portion, and the first housing has a fitting hole into which the protruding portion is fitted. It is provided.

  According to the board connector fitting structure of the present invention, the second housing is fitted into the first housing, the spring terminal is brought into contact with the contact terminal of the printed circuit board, and the elastic force by the spring terminal presses the holding portion. Even so, the holding portion is provided with a protruding portion that protrudes from the tip, and the protruding portion is fitted into the insertion hole of the first housing, whereby the displacement of the holding portion can be regulated. Therefore, since the deformation of the holding portion can be prevented, the elastic force of the spring terminal can be prevented from being lowered. Therefore, the fall of the contact force to the contact terminal of a spring terminal can be prevented.

The projecting portion is arranged in accordance with a board surface of the printed circuit board, and the insertion hole is provided in a state of being connected to a printed circuit board hole of the first housing that penetrates the printed circuit board. Is desirable.
Since the projecting portion is arranged in accordance with the substrate surface of the printed circuit board, the projecting portion is guided by the substrate surface of the printed circuit board when the first housing and the second housing are fitted together. Move to the back of 1 housing. Then, the protrusion is fitted into the insertion hole provided in a state where the protrusion is connected to the hole penetrating the printed circuit board while being guided by the printed circuit board. Therefore, the protruding portion can be reliably fitted into the insertion hole.

  As for the said protrusion part, it is desirable for the thickness of the front-end | tip part to be formed in the taper shape. Even if the insertion direction of the protrusion is slightly deviated from the insertion hole, if the tip enters the insertion hole, the inclined surface of the tapered portion is guided while sliding on the inner surface of the insertion hole. It can be fitted into the hole.

  As for the said protrusion part, it is desirable for the one end part or both ends of the width direction to protrude from the center part. Since the spring terminals provided in correspondence with the contact terminals of the printed circuit board respectively press the holding portions at the positions where the spring terminals are provided, the deformation of the holding portions is greater at the center than at the ends. If one end or both end portions in the width direction protrude from the center portion of the projecting portion, one end portion or both end portions of the projecting portion are fitted into the fitting hole earlier than the center portion. Therefore, first, by fitting the protruding portion into the insertion hole from the end portion side where the deformation of the holding portion is small, deformation of the end portion of the holding portion is suppressed, and the insertion hole is sequentially inserted from the end portion of the protruding portion to the central portion. By advancing the fitting, the deformation of the holding portion can be suppressed from the end portion to the central portion. By finally fitting the entire protruding portion into the insertion hole, the fitting can be completed without deforming the central portion of the holding portion having a large degree of deformation. Therefore, depending on the degree of deformation of the holding part, there is a concern that the projecting part may be displaced from the insertion hole, but the projecting part is reliably ensured that one end part or both end parts in the width direction project from the center part. The protrusion can be fitted into the insertion hole.

  As for the said protrusion part, it is desirable for the thickness of the one end part or both ends of the said width direction which protruded from the said center part to be formed thinner than the said center part. When the projecting part is inserted into the fitting hole, one end or both ends projecting from the center part enters first, but at that time, the thickness of one end or both ends is formed thinner than the center part. Insertion is easy.

  It is desirable that a spring material that is elastically deformed by contact with the insertion hole when the projection is inserted into the insertion hole is preferably provided. When the protrusion is provided with a spring material, the spring material is elastically deformed by contact with the insertion hole when inserted into the insertion hole, and therefore can be easily inserted into the insertion hole. When the protruding portion is fitted into the insertion hole, the spring material comes into close contact with the insertion hole due to the restoration of the spring material. Therefore, even if a gap is generated between the protrusion and the fitting hole due to the tolerance of the protrusion and the fitting hole, the protrusion and the fitting hole can be firmly fitted.

  It is desirable that the insertion hole is provided with a spring material that is elastically deformed by the contact of the protrusion when the protrusion is inserted. When the spring material is provided in the insertion hole, the spring material is elastically deformed by contact with the protrusion, and thus the protrusion can be easily inserted. When the protrusion is fitted into the insertion hole, the spring material comes into close contact with the protrusion due to the restoration of the spring material. Therefore, even if a gap is generated between the protrusion and the fitting hole due to the tolerance of the protrusion and the fitting hole, the protrusion and the fitting hole can be firmly fitted.

  It is preferable that a pair of the spring terminal and the projecting portion is provided so as to sandwich the printed circuit board in correspondence with the contact terminals being formed on both surfaces of the edge of the printed circuit board. Even if the contact terminals formed on the printed circuit board are provided on both sides, the spring terminals and the protrusions are provided as a pair so as to sandwich the printed circuit board, so that the spring terminals can be made into contact terminals with an appropriate contact force. Can be contacted.

  According to the present invention, since the displacement of the holding portion is regulated by fitting the protruding portion of the second housing into the fitting hole of the first housing, the deformation of the holding portion can be prevented. Therefore, since the elastic force of the spring terminal can be prevented from being lowered, the contact force of the spring terminal to the contact terminal can be prevented from being lowered. Therefore, the contact between the spring terminal and the contact terminal can be surely taken by preventing the contact force of the spring terminal from decreasing.

1 is a perspective view showing a board connector according to Embodiment 1 of the present invention. FIG. 2 is an exploded perspective view of a female housing of the board connector shown in FIG. 1. It is a disassembled perspective view of the male housing of the board | substrate connector shown in FIG. It is sectional drawing before the fitting of the connector for board | substrates shown in FIG. It is sectional drawing at the time of the fitting of the board | substrate connector shown in FIG. It is a front view of the female housing of the board | substrate connector shown in FIG. It is a top view of the female housing of the board | substrate connector shown in FIG. It is a right view of the female housing of the board | substrate connector shown in FIG. It is a perspective view which shows the modification of the board | substrate connector which concerns on Embodiment 1 of this invention. FIG. 10 is an exploded perspective view of the female housing of the board connector shown in FIG. 9. FIG. 10 is a cross-sectional view of the board connector shown in FIG. 9 before fitting. FIG. 10 is a cross-sectional view of the board connector shown in FIG. 9 when fitted. FIG. 10 is a front view of the female housing of the board connector shown in FIG. 9. FIG. 10 is a plan view of a female housing of the board connector shown in FIG. 9. FIG. 10 is a right side view of the female housing of the board connector shown in FIG. 9. It is a perspective view which shows the female housing of the connector for substrates which concerns on Embodiment 2 of this invention. FIG. 17 is a front view of a female housing of the board connector shown in FIG. 16. It is sectional drawing of the female housing of the connector for board | substrates shown in FIG. It is the A section enlarged view of the female housing shown in FIG. It is a perspective view of the male housing which shows the modification of the board | substrate connector which concerns on Embodiment 2 of this invention. FIG. 21 is a front view of a male housing of the board connector shown in FIG. 20. It is sectional drawing of the male housing of the connector for board | substrates shown in FIG. It is the B section enlarged view of the male housing shown in FIG. It is a perspective view which shows the conventional board | substrate connector. It is sectional drawing before the fitting of the conventional board | substrate connector shown in FIG. It is sectional drawing at the time of fitting of the conventional board | substrate connector shown in FIG.

(Embodiment 1)
A board connector fitting structure according to Embodiment 1 of the present invention will be described with reference to the drawings. In FIG. 1, the printed circuit board is omitted.
The board connector shown in FIGS. 1 to 8 is for electrically connecting a printed circuit board P (see FIG. 3) mounted on the housing C and a cable W (see FIG. 2). On this printed circuit board P, contact terminals P1 formed along the insertion direction by a pattern of a metal thin film are arranged on both sides of the edge portion along the width direction of the edge portion.
The board connector includes a male housing 10 (first housing) formed integrally with the housing C, and a female housing 20 (second housing) fitted into the male housing 10.

  The portion of the male housing 10 that protrudes from the housing C has a substantially rectangular cylindrical cross section that is orthogonal to the axis. A through hole 110 is provided at the rear end of the male housing 10 for allowing the printed circuit board P on which the contact terminals P1 are arranged to pass therethrough. The through-hole 110 has an elongated rectangular board insertion hole 111 for penetrating the printed circuit board P, and on the both sides of the front side and the back side with the printed circuit board P as a center when the printed circuit board P is arranged, It is formed in a shape in which a rectangular insertion hole 112 for fitting a protrusion described later is connected without partitioning.

  On the upper surface of the male housing 10, two parallel ribs 120 are provided along the insertion direction. At a position between the rear end portions of the rib 120, a locking portion 130 for being hooked on the female housing 20 is provided.

  The female housing 20 includes an inner housing 210 and an outer housing 220 that surrounds the outer periphery of the inner housing 210, and is formed with a space in which the male housing 10 is inserted. The inner housing 210 and the outer housing 220 are each formed in a substantially rectangular cylindrical shape. The inner housing 210 and the outer housing 220 are integrally formed with peripheral edges at the rear end portions.

A front holder 230 is attached to the front portion of the inner housing 210 via a seal member 240 formed in a rectangular frame shape for ensuring water tightness. If it is not necessary to ensure watertightness, the seal member 240 may not be provided. If the seal member 240 is not provided, the front holder 230 and the inner housing 210 may be integrated. .
A pair of elongated plate-like protrusions 211 are provided along the width direction at the tip of the inner housing 210. The protrusions 211 are arranged such that the positions of the inner side surfaces of the pair of protrusions 211 facing each other match the positions of the front and back plate surfaces of the printed circuit board P. That is, the distance between the pair of protrusions 211 is an interval that is substantially the same as the thickness of the printed circuit board P. The protruding portion 211 is formed in a tapered shape at the tip. Further, as shown in FIGS. 2 and 4, a contact insertion hole for inserting contact portions 30 arranged in three rows in a row and two rows in a column at the center of the rear end portion of the inner housing 210. 212 is provided.

  As shown in FIG. 1, the outer housing 220 is provided with a guide portion 221 for inserting and guiding the rib 120 when the male housing 10 is fitted inside.

  As shown in FIG. 2, the contact portion 30 includes a spring terminal 310 formed by bending an elastically deformable band-shaped metal plate, a contact portion main body 320 provided with a spring terminal 310 at a tip portion, and a contact portion. A caulking portion 330 that is provided at the base end portion of the main body 320 and that caulks and connects the cable 40 is formed. Further, the contact portion 30 is provided with a cylindrical seal member 31 through which the cable W is inserted in order to ensure water tightness when disposed in the inner housing 210. In addition, when it is not necessary to ensure watertightness, the sealing member 31 may not be provided.

  As shown in FIGS. 4 and 5, the spring terminal 310 is bent in a substantially C-shape, and one end 311 located on the distal end side of the contact portion main body 320 is fixed to the contact portion main body 320 and is folded back to be a printed circuit. An inclined surface 312 that is in sliding contact with the substrate P is formed, and the other end 313 that is further bent and curved is used as a free end. Since the contact portion 30 provided with the spring terminal 310 is accommodated in the inner housing 210, the inner housing 210 functions as a holding portion that supports the spring terminal 310.

  As shown in FIG. 2, the contact portion main body 320 is formed in an elongated, substantially box shape. The contact portion main body 320 has an exposed hole 321 for allowing the inclined surface 312 of the spring terminal 310 to be seen, and a notch hole for hooking on a protrusion provided on the inner side surface of the inner housing 210 when inserted into the inner housing 210. 322.

The usage state of the board connector according to Embodiment 1 of the present invention configured as described above will be described with reference to the drawings.
4 and 5, the distal end of the male housing 10 is positioned between the outer housing 220 and the inner housing 210 of the female housing 20, and the female housing 20 is moved by moving the female housing 20. The female housing 20 is advanced to the back side of the male housing 10. The protruding portion 211 is arranged in accordance with the board surface of the printed circuit board P. If the position of the protruding portion 211 is shifted in the direction in which the insertion gap is narrowed, either one of the pair of protruding portions 211, Or both may contact the printed circuit board P. However, since the tip of the protruding portion 211 is formed in a tapered shape, the printed circuit board P protrudes by being guided while the end of the printed circuit board P slides on the inclined surface of the tip of the protruding portion 211. It can be inserted between the portions 211.

  Further, when the female housing 20 advances to the back side of the male housing 10, the protruding portion 211 is guided to the front surface and the back surface of the printed circuit board P. The protrusion 211 reaches the insertion hole 112 of the through hole 110 provided in a state of being connected to the board insertion hole 111 through which the printed circuit board P passes while being guided by the printed circuit board P. At this time, even if the insertion direction of the protruding portion 211 is slightly deviated from the insertion hole 112, if the tip enters the insertion hole 112, the inclined surface of the tapered portion of the protruding portion 211 slides on the inner surface of the insertion hole 112. Therefore, the protruding portion 211 can be advanced into the insertion hole 112. Thus, since the protrusion part 211 can be reliably guided to the insertion hole 112, the protrusion part 211 can be reliably fitted to the insertion hole 112.

  On the other hand, the printed circuit board P enters between the protrusions 211 and advances while pressing and elastically deforming the spring terminal 310. At this time, the stress that the spring terminal 310 tries to push up the inner housing 210 by the elastic force acts. However, since the protruding portion 211 that protrudes from the tip of the inner housing 210 is fitted in the insertion hole 112 of the first housing, the displacement of the inner housing 210 can be restricted. Therefore, the deformation of the inner housing 210 can be prevented, so that the elastic force of the spring terminal 310 can be prevented from being lowered. Therefore, since the fall of the contact force to the contact terminal P1 of the spring terminal 310 can be prevented, the contact with the spring terminal 310 and the contact terminal P1 can be taken reliably.

(Modification of Embodiment 1)
Next, modifications of the board connector according to Embodiment 1 of the present invention will be described with reference to the drawings. 9 to 15, the same components as those in FIGS. 1 to 8 are denoted by the same reference numerals and description thereof is omitted.
In this modified example, as the shape of the projecting portion, both end portions in the width direction are formed so as to project from the central portion.

As shown in FIGS. 9 to 15, when the printed circuit board P (see FIGS. 11 and 12) contacts the spring terminal 310 before the protruding portion 213 is inserted into the insertion hole 112, first, the print is performed. The circuit board P contacts the spring terminal 310, and each of the spring terminals presses the inner surface of the inner housing 210 at a position where the spring terminal 310 is provided.
In the present embodiment, since the three contact portions 30 are arranged in a row, the pressing force of the spring terminal 310 of the contact portion 30b located in the center portion from the contact portions 30a and 30c close to the side wall of the inner housing 210 is more preferable. Acts greatly on the inner housing 210 (see FIG. 10). Accordingly, the deformation of the inner housing 210 in the width direction is such that the central portion is larger than the end portion.

  In the board connector shown in FIG. 9, the protruding amount in the insertion direction of both end portions 213a and 213c in the width direction of the protruding portion 213 is larger than that in the central portion 213b. Both end portions 213a and 213c are inserted before the central portion 213b. The protruding portion 213 is not only formed so that both end portions 213a and 213c protrude from the central portion 213b, but the thickness of both end portions 213a and 213c protruding from the central portion 213b is thinner than that of the central portion 213b. Is formed.

  Therefore, when both the end portions 213 a and 213 c of the protruding portion 213 are inserted into the insertion hole 112, both the end portions 213 a and 213 c can be easily inserted into the insertion hole 112. After the both end portions 213a and 213c are inserted into the insertion holes 112, when the insertion of the protruding portion 213 is further advanced, the insertion range is gradually expanded toward the center portion 213b, so that the range of deformation suppression is the end portion 213a. , 213c to the central portion 213b. Then, by finally inserting the entire protrusion 213 into the insertion hole 112, the protrusion 213 can be fitted into the insertion hole 112 without difficulty.

  The projecting portion 213 shown in FIG. 9 has both end portions 213a and 213c projecting larger than the central portion 213b, but may be either one of the end portions.

  In this embodiment, as shown in FIGS. 1 and 9, the insertion hole 112 is a through hole 110 connected to the board insertion hole 111, but the insertion hole 112 is located at a position where the protruding portion 211 is provided. The insertion hole 112 and the board insertion hole 111 may be provided separately as long as the insertion hole 112 is provided at the position of the rear end portion of the male housing 10 in the corresponding insertion direction.

  Further, in the present embodiment, as shown in FIGS. 2 and 10, since the contact terminals P1 of the printed circuit board P are formed on both sides of the edge portion, the contact portions 30 having the spring terminals 310 are arranged in two columns. If the contact terminals P1 of the printed circuit board P are only on one side, the contacts 30 are arranged on the side where the contact terminals P1 are provided. Only one of the corresponding sides can be provided, and the protrusion 211 can be only one of the sides on which the contact part 30 is provided.

(Embodiment 2)
A board connector fitting structure according to Embodiment 2 of the present invention will be described with reference to the drawings. In addition, about the female housing shown in FIGS. 16-19, the thing of the same structure as FIGS. 9-15 attaches | subjects the same code | symbol, and abbreviate | omits description. Further, the male housing of the board connector according to the second embodiment of the present invention is not shown because it is the same as the male housing 10 shown in FIGS.

The female housing of the board connector shown in FIGS. 16 to 19 has a spring member 214 formed of a metal piece that is elastically deformed by contact with the insertion hole 112 when inserted into the insertion hole 112 (see FIG. 9). The unit 213 is provided. Therefore, the spring material 214 is provided on the outer surface of the pair of protrusions 213.
The spring material 214 is disposed along the central portion 213b where the thickness of the protruding portion 213 is thicker than the end portions 213a and 213c, and is provided corresponding to the protruding amount of the central portion 213b. The spring material 214 has an inclined surface that is inclined downward toward the front side, the base end side is embedded in the inner housing 210, and a gap is provided between the protruding portion 213.

  Since the spring material 214 is provided on the projecting portion 213 in this way, the spring material 214 is elastically deformed by contact with the insertion hole 112, so that even if the spring material 214 is provided on the projecting portion 213, the spring material is provided. 214 and the protruding portion 213 can be easily inserted into the insertion hole 112. When the protruding portion 213 is fitted into the insertion hole 112, the spring material 214 comes into close contact with the insertion hole 112 by the restoration of the spring material 214. Therefore, even if a gap is generated between the protruding portion 213 and the fitting hole 112 due to the tolerance of the protruding portion 213 and the fitting hole 112, the protruding portion 213 and the fitting hole 112 can be firmly fitted.

(Modification of Embodiment 2)
A modification of the board connector according to Embodiment 2 of the present invention will be described with reference to the drawings. In addition, about the male housing shown in FIGS. 20-23, the thing of the same structure as FIGS. 9-23 attaches | subjects the same code | symbol, and abbreviate | omits description. Further, the female housing of the board connector according to the second embodiment of the present invention is not shown because it is the same as the female housing 20 shown in FIGS.

This modification is characterized in that a spring material 215 is provided in the insertion hole 112 of the male housing instead of providing the spring material 214 in the protruding portion 213 of the female housing.
The spring material 215 is provided on the inner surface of the insertion hole 112 corresponding to the outer surface of the pair of projecting portions 213.

  Since the spring material 215 is provided in the insertion hole 112, the spring material 215 is elastically deformed by contact with the projection 213, so that the projection 213 is inserted even if the spring material 215 is provided in the insertion hole 112. It can be easily inserted into the hole 112. When the protruding portion 213 is fitted into the insertion hole 112, the spring material 215 comes into close contact with the protruding portion 213 due to the restoration of the spring material 215. Therefore, even if a gap is generated between the protruding portion 213 and the fitting hole 112 due to the tolerance of the protruding portion 213 and the fitting hole 112, the protruding portion 213 and the fitting hole 112 can be firmly fitted.

  The board connector fitting structure of the present invention includes a first housing that protects a printed circuit board provided with a contact terminal, and a spring terminal that fits into the first housing and is electrically connected to the contact terminal. It is possible to apply to a board connector provided with a second housing provided with.

DESCRIPTION OF SYMBOLS 10 Male housing 110 Through hole 111 Substrate insertion hole 112 Insertion hole 120 Rib 130 Locking part 20 Female housing 210 Inner housing 211, 213 Projection part 213a, 213c End part 213b Center part 212 Contact insertion hole 214, 215 Spring material 220 Outer housing 221 Guide portion 230 Front holder 240 Seal member 30, 30a, 30b, 30c Contact portion 310 Spring terminal 311 One end portion 312 Inclined surface 313 Other end portion 320 Contact portion main body 321 Exposed hole 322 Notch hole 330 Caulking portion 31 Seal member 40 Cable C Enclosure P Printed circuit board P1 Contact terminal W Cable

Claims (8)

A first housing for holding a printed circuit board having contact terminals arranged on the edge portion from the rear end portion to the inside;
A spring terminal that is brought into electrical contact with the contact terminal by contacting the contact terminal with an elastic force by fitting the first housing is provided corresponding to the contact terminal, and the spring terminal is A second housing provided with a holding portion to support,
The second housing is provided with a protruding portion protruding from the tip of the holding portion,
The board connector fitting structure, wherein the first housing is provided with a fitting hole into which the protrusion is fitted. The protruding portion is arranged in accordance with the substrate surface of the printed circuit board,
2. The board connector fitting structure according to claim 1, wherein the insertion hole is provided in a state of being connected to a printed circuit board hole of the first housing that allows the printed circuit board to penetrate therethrough. 3.   The board connector fitting structure according to claim 1, wherein the protruding portion has a tip portion formed in a tapered shape.   4. The board connector fitting structure according to claim 1, wherein one end portion or both end portions in the width direction of the protruding portion protrude from a central portion. 5.   5. The board connector fitting structure according to claim 4, wherein the protruding portion is formed such that one end portion or both end portions in the width direction protruding from the central portion are thinner than the central portion.   The board connector according to any one of claims 1 to 5, wherein the protruding portion is provided with a spring material that is elastically deformed by contact with the insertion hole when inserted into the insertion hole. Combined structure.   The board connector fitting structure according to any one of claims 1 to 5, wherein the insertion hole is provided with a spring material that is elastically deformed by contact of the protrusion when the protrusion is inserted. .   8. The spring terminal and the protruding portion are provided in a pair so as to sandwich the printed circuit board in correspondence with the contact terminals being formed on both surfaces of the edge of the printed circuit board. The board connector fitting structure according to any one of the above.

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