JP6010819B2 - Connector board fixing structure - Google Patents

Description

  The present invention relates to a structure for fixing a connector to a circuit board.

  As an electric device mounted on a vehicle such as an automobile, for example, an electric junction box can be cited. The electric junction box is known as a generic term for a relay box, a fuse box, a junction block, an electronic control unit box, or the like.

  In the electrical junction box disclosed in Patent Document 1 below, a plurality of loads are connected to the downstream side via a wire harness. The electric junction box has a configuration and a structure for distributing power and the like to a plurality of loads. Hereinafter, the electrical junction box of Patent Document 1 will be described.

  In FIG. 11, reference numeral 101 indicates an electrical junction box. Here, the electrical junction box 101 is shown with the cover member omitted. The electrical connection box 101 includes a circuit board 102, an electronic component 103, connectors 104 and 105 (connector block), a fuse block 106, and other components.

  An electronic component 103 is mounted on the circuit board 102. The circuit board 102 is also assembled with connectors 104 and 105 and a fuse block 106. The electronic component 103, the connectors 104 and 105, and the fuse block 106 are electrically connected to predetermined positions on the circuit pattern formed on the circuit board 102. The electronic component 103 is a plurality of switching transistors 107 and an integrated circuit 108, and is electrically connected via a connection portion of each terminal.

  The connector 104 includes a connector housing 109 and a plurality of L-shaped terminals 110. The connector housing 109 has a housing main body 111 into which a mating connector (not shown) is fitted, and a housing fixing portion 112 fixed to the circuit board 102 with screws. The L-shaped terminal 110 is disposed so that one end thereof is surrounded by the housing body 111 and can be electrically connected to a mating connector (not shown). The other end of the L-shaped terminal 110 is inserted into a through hole of the circuit board 102 and soldered to a predetermined circuit pattern.

  The connector 105 is configured similarly to the connector 104 described above. That is, the connector housing 113 and a plurality of L-shaped terminals 114 are provided. The connector housing 113 has a housing main body 115 into which a mating connector (not shown) is fitted, and a housing fixing portion (the same portion as the above reference numeral 112) fixed to the circuit board 102 with a screw. The L-shaped terminal 114 is disposed so that one end thereof is surrounded by the housing body 115 and can be electrically connected to a mating connector (not shown). The other end of the L-shaped terminal 114 is inserted into a through hole of the circuit board 102 and soldered to a predetermined circuit pattern.

  The L-shaped terminal 114 will be described in a little more detail (the same applies to the L-shaped terminal 110). The L-shaped terminal 114 is first straight and its one end (terminal one end 114a) is the housing body. It is assembled and fixed to 115. One end is fixed at a location continuing to the electrical connection portion with the mating connector. Thereafter, it is bent at 90 degrees at a predetermined intermediate position to form a terminal bent portion 114b. When the middle is bent at 90 degrees, the other end (terminal other end portion 114 c) of the L-shaped terminal 114 faces the circuit board 102. The above processing is performed by an automatic machine. The other end (terminal other end portion 114 c) of the L-shaped terminal 114 is inserted through the through hole of the circuit board 102.

  The fuse block 106 includes a fuse cavity 116, a connector housing 117, a housing 118, a terminal holder 119, and a plurality of terminals 120. The fuse cavity 116, the connector housing 117, and the housing 118 are integrally molded, and a plurality of terminals 120 are assembled between these and the terminal holder 119.

  The terminal 120 has a plurality of shape portions with a tip having a tuning fork shape. This shape portion is disposed and formed in a portion corresponding to the fuse cavity 116. The terminal 120 also has portions corresponding to the connector housing 117 and the housing 118.

JP 2006-333583 A

  By the way, the connectors 104 and 105 according to the prior art have a problem that the fixing to the circuit board 102 is screwed, which is troublesome and requires a lot of work.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector board fixing structure capable of eliminating screwing.

In order to solve the above problems, the present invention according to claim 1 includes an insulating connector housing and a conductive L-shaped terminal, wherein the connector housing is a housing body into which a mating connector is fitted. And a housing fixing part used as a part fixed to the circuit board, wherein the L-shaped terminal has one terminal having an electrical connection part with the mating connector and a part assembled and fixed to the housing body. In the connector board fixing structure, the connector is a soldering member. The connector has a terminal bending portion located in the middle, and a terminal other end portion inserted into a predetermined through hole of the circuit board and soldered. with assembling the Sorudapegu as to the housing fixing portion, and shall be fixed to the circuit board via the Sorudapegu, the The uzing fixing portion has a rectangular block shape, is integrally formed with the housing body, and is provided at a position that is substantially intermediate between both side portions of the housing body and can be placed on the circuit board. The housing fixing portion includes a meat stealing portion and a mounting surface formed on a lower surface of the housing fixing portion for mounting the housing fixing portion on the circuit board, and the entire surface of the mounting surface. Is formed so as to be a flat surface in accordance with the surface of the circuit board, and the solder peg is fixed to the housing fixing portion in the same direction as the one end of the terminal, and the solder peg fixing portion. A solder peg bent portion that is continuous with the first end of the portion and is bent in the same direction as the terminal bent portion, and is continuous with the solder peg bent portion and the same as the other end of the terminal. Wherein characterized in that it is formed into a predetermined shape having a Sorudapegu soldering portion to be soldered are inserted into the through hole, to.

  According to the present invention having such a feature, the connector is fixed to the circuit board by a solder peg that is assembled in the same manner as the L-shaped terminal, processed in the same manner, and soldered in the same manner.

  According to a second aspect of the present invention, there is provided the board fixing structure for a connector according to the first aspect, wherein the solder peg is provided on the second end side of the solder peg fixing portion and the solder peg bent portion and the solder peg soldering portion. It has the same part.

  According to the present invention having such characteristics, the solder peg is soldered to the circuit board at two places. As the number of soldering points increases, the connector is fixed more firmly.

  According to a third aspect of the present invention, in the board fixing structure for a connector according to the first or second aspect, the solder peg bent portion is formed in a portion wider than the solder peg soldering portion. .

  According to the present invention having such characteristics, the solder peg is ensured in rigidity at the wide portion. By ensuring the rigidity, it is strong against a force received from the mating connector and an external force such as an impact.

  According to a fourth aspect of the present invention, in the connector board fixing structure according to the first, second, or third aspect, the terminal one end portion and the solder peg fixing portion each have a press-fit structure portion that is assembled and fixed by press-fitting. It is characterized by that.

  According to the present invention having such a feature, the terminal one end portion and the solder peg fixing portion are assembled and fixed to the housing body and the housing fixing portion by press fitting. Assembly by an automatic machine becomes possible.

  According to a fifth aspect of the present invention, there is provided the connector board fixing structure according to the first, second, third, or fourth aspect, wherein the solder peg fixing portion and the solder peg soldering portion are provided on the housing main body at one end of the terminal. It is characterized by being formed in the same shape as the part to be assembled and fixed and the other end of the terminal.

  According to the present invention having such characteristics, the shape design of the solder peg can be facilitated. In addition, this invention shall not prevent newly installing a solder peg as an exclusive part.

  According to the first aspect of the present invention, a solder peg having a predetermined shape having a solder peg fixing portion, a solder peg bent portion, and a solder peg soldering portion is used. There exists an effect that it can fix to a board | substrate. Thereby, it is possible to eliminate troublesome work and to reduce the number of work steps.

  According to the second aspect of the present invention, in addition to the effect of the first aspect, the following effect is also achieved. That is, since the number of soldering points in the solder peg is increased, the connector can be more firmly fixed.

  According to the present invention described in claim 3, in addition to the effect of claim 1 or 2, the following effect is also achieved. That is, since the rigidity of the solder peg is increased, the connector can be more firmly fixed, and the connector can be fixed in a strong state against an external force or the like.

  According to the present invention described in claim 4, in addition to the effect of claim 1, 2, or 3, the following effect is also achieved. That is, since it has a press-fit structure portion, it is possible to provide a solder peg that is easy to assemble and fix like the L-shaped terminal.

  According to the present invention described in claim 5, in addition to the effect of claim 1, 2, 3 or 4, the following effect is also achieved. That is, since the shape design of the solder peg is facilitated, the cost can be reduced.

It is a perspective view which shows the board | substrate fixing structure of the connector of this invention (Example 1). It is principal part sectional drawing of FIG. It is a perspective view of a solder peg. It is a perspective view of the solder peg used as another example. It is explanatory drawing which concerns on the assembly | attachment of a solder peg. It is explanatory drawing which concerns on the assembly | attachment of a solder peg. It is explanatory drawing which concerns on the assembly | attachment of a solder peg. (Example 2) which is a perspective view which shows the board | substrate fixing structure of the connector of this invention. It is principal part sectional drawing of FIG. It is a perspective view of a solder peg. It is a perspective view which shows the structure and board | substrate fixing structure of the electrical junction box of a prior art example.

  The connector is fixed to the circuit board without screwing by using a solder peg. The solder peg is formed in a predetermined shape having at least a solder peg fixing portion, a solder peg bent portion, and a solder peg soldering portion.

  Embodiment 1 will be described below with reference to the drawings. FIG. 1 is a perspective view showing a board fixing structure of a connector according to the present invention. 2 is a cross-sectional view of the main part of FIG. 1, FIG. 3 is a perspective view of a solder peg, FIG. 4 is a perspective view of another example of a solder peg, and FIGS. 5 to 7 are explanatory views relating to assembly of the solder peg.

  In the following description, specific shapes, materials, numerical values, directions, and the like are examples for facilitating the understanding of the present invention, and can be appropriately changed according to use, purpose, specifications, and the like. To do. In addition, although an electrical connection box mounted on an automobile will be described as an example, it is assumed that the present invention can be applied to, for example, various electric devices other than the electrical connection box of an automobile.

  In FIG. 1, one or a plurality of connectors 1 (connector blocks) are provided in an electrical connection box as a connection portion with a wire harness (not shown). The connector 1 is mechanically assembled and fixed to the circuit board 2 and is electrically connected. The connector 1 includes an insulating connector housing 3, a plurality of conductive L-shaped terminals 4, and a solder peg 5 according to the present invention. A circuit pattern (not shown) having a desired path is formed on the circuit board 2. In addition, a plurality of through holes 6 are formed through the circuit board 2.

  The connector housing 3 includes a housing body 7 that is a fitting portion with a mating connector (not shown) provided in the wire harness, and a housing fixing portion 8 that is a fixing portion for the circuit board 2. The housing body 7 has a bottom wall portion to which a plurality of L-shaped terminals 4 are assembled and fixed, a side wall provided on an outer edge of the bottom wall portion, a fitting space for the mating connector, a partition wall, a lock portion, and the like. And are formed. The housing body 7 has a known structure and is formed in a rectangular box shape.

  The housing fixing portion 8 is formed integrally with the housing body 7. Further, the housing fixing portion 8 is disposed on both sides of the housing body 7. Specifically, the housing body 7 is disposed on the side wall located on both sides of the housing body 7 and at a position where it can be placed on the circuit board 2. The solder peg 5 is assembled and fixed to such a housing fixing portion 8. The connector 1 is fixed to the circuit board 2 via the solder peg 5. The solder peg 5 is fixed by the same soldering as the L-shaped terminal 4.

  In FIG.1 and FIG.2, the housing fixing | fixed part 8 is formed in a rectangular substantially block shape. The housing fixing portion 8 is formed in a sufficiently small portion with respect to the housing body 7. In the housing fixing part 8, a mounting surface 9 for the circuit board 2, a solder peg press-fitting hole 10 for the solder peg 5, and a meat stealing part 11 are formed.

  The mounting surface 9 is formed on a flat surface in accordance with the surface of the circuit board 2. If the arrows in FIG. 2 are up, down, front and back, the mounting surface 9 is formed as the lower surface of the housing fixing portion 8. Reference numeral 12 is the upper surface, reference numeral 13 is the front surface, and reference numeral 14 is the rear surface.

  The solder peg press-fitting hole 10 is disposed and formed on the upper surface 12 side. Further, the solder peg press-fitting hole 10 is formed in a hole-shaped portion having a rectangular cross section that penetrates straight from the front surface 13 to the rear surface 14. The solder peg press-fitting hole 10 is formed so that the solder peg 5 can be fixed by press-fitting.

  The meat stealing portion 11 is disposed and formed between the mounting surface 9 and the solder peg press-fitting hole 10. The meat stealing portion 11 is formed in a bottomed hole-shaped portion that dents the front surface 13 toward the rear surface 14. The meat stealing portion 11 is formed as a portion that makes the thickness of the housing fixing portion 8 uniform.

  Before describing the solder peg 5, the L-shaped terminal 4 will be described with reference to FIG.

  The L-shaped terminal 4 is located between the terminal end portion 15 having a portion to be electrically connected to the mating connector and the bottom wall portion of the housing main body 7 by press-fitting, and between the L-shaped terminal 4. The terminal bent portion 16 is positioned, and the terminal other end portion 17 is inserted into a predetermined through hole 6 of the circuit board 2 and soldered. The terminal one end 15 is disposed and formed so as to protrude into the fitting space for the mating connector. Note that the L-shaped terminal 4 is in a straight state until the terminal one end 15 is assembled and fixed. The terminal one end portion 15 is formed with a press-fit structure portion (not shown. In this embodiment, it is assumed to be the same as the press-fit structure portion 21 described later of the solder peg 5).

  The terminal bent portion 16 is formed by being bent at 90 degrees in order to electrically connect the connector 1 to the circuit board 2. When the terminal bent portion 16 is bent at 90 degrees, the terminal other end portion 17 faces the circuit board 2. The L-shaped terminal 4 is assembled and fixed or bent by an automatic machine.

  In FIG. 3 (refer also to FIGS. 1 and 2 if necessary), the solder peg 5 is used as a fixing member to the circuit board 2 as described above. The solder peg 5 is a member fixed to the circuit board 2 by soldering, and can also be called a soldering member. The solder peg 5 is made of a metal material having good compatibility with solder. Note that the surface may be plated to enhance compatibility with solder.

  The solder peg 5 is processed into a predetermined shape that is L-shaped after being formed into a straight, substantially rod-shaped member. The solder peg 5 has a solder peg fixing portion 18, a solder peg bent portion 19, and a solder peg soldering portion 20 in an L-shaped predetermined shape.

  The solder peg fixing portion 18 is formed as a portion that is assembled and fixed to the solder peg press-fitting hole 10. A press-fit structure portion 21 is integrally formed on the side portion of the solder peg fixing portion 18. Since the solder peg fixing part 18 has the press-fit structure part 21, it is press-fitted into the solder peg press-fitting hole 10 and fixed.

  The solder peg bent portion 19 is coupled to the first end portion 22 of the solder peg fixing portion 18. The solder peg bent portion 19 is formed by being bent at 90 degrees.

  The solder peg bent portion 19 is formed wider than the solder peg soldering portion 20. The solder peg bent portion 19 has sufficient rigidity. A solder peg soldering portion 20 is coupled to the solder peg bending portion 19.

  It should be noted that a terminal machined part 23 shown in FIG. 4 may be adopted as an alternative to the solder peg 5. The terminal processed component 23 is formed by cutting the straight L-shaped terminal 4 into a predetermined length (the hatched portion in the figure is removed by cutting) and bending it. The terminal processed component 23 is effective for cost reduction.

  As shown in FIGS. 5 and 6, the solder peg 5 is assembled and fixed to the solder peg press-fitting hole 10 of the housing fixing portion 8. The solder peg 5 is assembled in the same direction (see arrow P) as the L-shaped terminal 4 (see FIG. 1). As with the L-shaped terminal 4, the solder peg 5 can be assembled by an automatic machine.

  The solder peg 5 assembled and fixed in the solder peg press-fitting hole 10 is bent at 90 degrees as shown in FIG. 7 to form a solder peg bent portion 19 (see arrow Q). When the solder peg bent portion 19 is formed, the solder peg soldering portion 20 faces the circuit board 2 (see FIG. 2). The solder peg bent portion 19 is formed by being bent by an automatic machine in the same manner as the L-shaped terminal 4 (see FIG. 1). Further, soldering to the solder peg soldering portion 20 is performed in the same manner as the L-shaped terminal 4 (see FIG. 1).

  When the connector 1 is lowered vertically with respect to the circuit board 2 (see FIG. 1), the L-shaped terminal 4 and the solder peg 5 are inserted through the through holes 6 of the circuit board 2, respectively. Thereafter, when soldering is performed on the back side of the circuit board 2, the electrical connection of the connector 1 and the mechanical assembly and fixing are completed within the same process.

  As described above with reference to FIGS. 1 to 7, when the connector 1 is fixed to the circuit board 2, the solder peg having a predetermined shape having the solder peg fixing portion 18, the solder peg bending portion 19, and the solder peg soldering portion 20. 5 is used, the connector 1 can be fixed to the circuit board 2 without screwing as in the prior art. As a result, troublesome work can be eliminated and the number of work steps can be reduced.

  In addition, since the solder peg bent portion 19 is formed wider than the solder peg soldering portion 20 to increase the rigidity of the solder peg 5, the connector 1 can be more firmly fixed. Further, the connector 1 can be fixed in a strong state against external force or the like. Furthermore, since the solder peg 5 is made of a metal material and has a portion exposed on the upper side of the circuit board 2, the solder peg 5 is radiated with respect to the heat generated in the circuit board 2 by being connected to the circuit pattern on the circuit board 2. It can function as a member.

  Embodiment 2 will be described below with reference to the drawings. FIG. 8 is a perspective view showing the board fixing structure of the connector of the present invention. 9 is a cross-sectional view of the main part of FIG. 8, and FIG. 10 is a perspective view of the solder peg. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 8, the connector 1 ′ is mechanically assembled and fixed to the circuit board 2 and is electrically connected. The connector 1 'according to the second embodiment includes an insulating connector housing 3, a plurality of conductive L-shaped terminals 4, and a solder peg 5' according to the present invention. The connector 1 'is fixed more firmly than the first embodiment by the solder peg 5'.

  8 to 10, the solder peg 5 'is formed into a straight, substantially rod-shaped member, and then processed into a predetermined shape having a gate shape (U-shape). The solder peg 5 'has a gate-shaped (U-shaped) predetermined shape, and includes a solder peg fixing portion 18, a pair of solder peg bent portions 19, and a pair of solder peg soldering portions 20.

  The pair of solder peg bent portions 19 are coupled to the first end portion 22 and the second end portion 24 of the solder peg fixing portion 18. The pair of solder peg bent portions 19 are formed by being bent at 90 degrees. Solder peg soldering portions 20 are coupled to the pair of solder peg bent portions 19.

  The solder peg 5 ′ is assembled and fixed in the solder peg press-fitting hole 10 of the housing fixing portion 8. The solder peg 5 ′ is assembled in the same direction as the L-shaped terminal 4. The solder pegs 5 ′ assembled and fixed in the solder peg press-fitting holes 10 are bent at 90 degrees to form a pair of solder peg bent portions 19. When the pair of solder peg bent portions 19 are formed, the pair of solder peg soldering portions 20 face the circuit board 2.

  When the connector 1 ′ is lowered vertically with respect to the circuit board 2, the L-shaped terminal 4 and the solder peg 5 ′ are inserted through the through holes 6 of the circuit board 2. Thereafter, when soldering is performed on the back side of the circuit board 2, the electrical connection of the connector 1 'and the mechanical assembly and fixing are completed within the same process.

  As described above, as described with reference to FIGS. 8 to 10, the second embodiment also has the same effect as the first embodiment. That is, the connector 1 ′ can be fixed to the circuit board 2 without screwing as in the prior art. As a result, troublesome work can be eliminated and the number of work steps can be reduced.

  In addition, according to the second embodiment, the solder peg 5 'is soldered to the circuit board 2 at two points, and the number of soldering points is increased as compared with the first embodiment, so that the connector 1' can be fixed more firmly. Can do.

  Furthermore, according to the second embodiment, the solder peg 5 ′ is a gate shape (U shape) and is also a portion that is electrically connected to the circuit board 2 via the pair of solder peg soldering portions 20. By making 5 'itself a conductive path, it can function as a jumper line connecting desired circuits. Furthermore, according to the second embodiment, the solder peg 5 ′ is made of a metal material and has a portion exposed on the upper side of the circuit board 2. Therefore, by connecting to the circuit pattern on the circuit board 2, It can also function as a heat radiating member against heat generated in the circuit board 2.

  In addition, the present invention can of course be modified in various ways within the scope not changing the gist of the present invention.

  DESCRIPTION OF SYMBOLS 1, 1 '... Connector, 2 ... Circuit board, 3 ... Connector housing, 4 ... L-shaped terminal, 5, 5' ... Solder peg, 6 ... Through hole, 7 ... Housing main body, 8 ... Housing fixing part, 9 ... Mount Placement surface, 10 ... Solder peg press-fitting hole, 11 ... Meat stealing part, 12 ... Upper surface, 13 ... Front face, 14 ... Rear face, 15 ... Terminal one end part, 16 ... Terminal bending part, 17 ... Terminal other end part, 18 ... Solder peg fixing , 19 ... Solder peg bending part, 20 ... Solder peg soldering part, 21 ... Press-fit structure part, 22 ... First end part, 23 ... Terminal processing part, 24 ... Second end part

Claims (5)

Including an insulating connector housing and a conductive L-shaped terminal;
The connector housing has a housing body into which a mating connector is fitted, and a housing fixing portion used as a portion fixed to the circuit board,
The L-shaped terminal includes a terminal end portion having an electrical connection portion with the mating connector and a portion that is assembled and fixed to the housing body, a terminal bent portion positioned in the middle, and a predetermined through hole of the circuit board. The other end of the terminal inserted into and soldered to,
In the board fixing structure of the connector,
The connector is attached to the housing fixing portion with a solder peg as a soldering member, and is fixed to the circuit board via the solder peg.
The housing fixing portion has a rectangular block shape, is formed integrally with the housing body, and is provided at a position that can be placed on the circuit board at a substantially intermediate portion of each side portion of the housing body, Further, the housing fixing part includes a meat stealing part, and a mounting surface formed on a lower surface of the housing fixing part for mounting the housing fixing part on the circuit board. The entire surface is formed to be a flat surface according to the surface of the circuit board,
The solder peg is a solder peg fixing portion that is assembled and fixed to the housing fixing portion in the same direction as the one end of the terminal, and a solder peg bending that is continuous with the first end of the solder peg fixing portion and is bent in the same direction as the terminal bending portion. And a solder peg soldering portion that is continuous with the solder peg bent portion and is inserted into the through hole and soldered in the same manner as the other end portion of the terminal. Board fixing structure. In the board | substrate fixing structure of the connector of Claim 1,
The solder peg has a portion similar to the solder peg bent portion and the solder peg soldering portion on the second end side of the solder peg fixing portion. In the board | substrate fixed structure of the connector of Claim 1 or 2,
The board fixing structure for a connector, wherein the solder peg bent portion is formed in a portion wider than the solder peg soldering portion. In the board | substrate fixed structure of the connector of Claim 1, 2, or 3,
The terminal one end part and the solder peg fixing part each have a press-fit structure part that is assembled and fixed by press-fitting. In the connector board fixing structure according to claim 1, 2, 3, or 4,
The board fixing structure for a connector, wherein the solder peg fixing part and the solder peg soldering part are formed in the same shape as a part of the terminal one end assembled and fixed to the housing body and the other end of the terminal.

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