JP5568332B2 - Electrical connector - Google Patents

Description

  The present invention relates to an electrical connector. In particular, the present invention relates to a structure of an electrical connector in which a contact connected to a counterpart contact to which a power supply current is supplied has a heat dissipation effect.

  In recent years, miniaturized portable electronic devices such as DSC (Digital Still Camera), mobile phones, CD players, and MD players have built-in batteries. In order to supply this battery power to a circuit board (printed circuit board) provided in the electronic device, a very small, so-called chip-size package type wire-to-board connector (Wire to Board Connector) is used.

  The wire-to-board connector described above includes, for example, a socket connector and a base connector. And the socket connector has the socket contact which crimped | bonded the edge part of the lead wire extended from a battery, and the base connector mounted in the printed circuit board has disclosed the electrical connector which has a blade contact connected to a socket contact ( For example, see Patent Document 1).

  The electrical connector according to Patent Document 1 is inserted from the second side wall toward the recess with respect to a base connector that forms a recess with a pair of opposing first side walls and a second side wall orthogonal to the pair of first side walls. Since the contact connecting portion for connecting with the socket contact is in contact with the bottom surface of the recess, the blade contact is press-fitted from the bottom surface of the base as in the prior art, without maintaining the posture of the blade contact, The blade contact posture can be maintained between the bottom surface of the recess and the second side wall. Therefore, the thickness of the base can be reduced, and further reduction in the height of the base connector can be realized.

JP 2006-128034 A

  However, since most of the blade contact according to Patent Document 1 is covered with a housing made of a heat insulating material, there is a problem that when the rated current value supplied from the socket contact increases, the blade contact heats up.

  If the electrical connector can be configured so that the contact connected to the counterpart contact to which the power supply current is supplied has a heat dissipation effect, the rated current value can be increased. Furthermore, it is possible to suppress the internal heat generation of the electronic device incorporating this electrical connector. The above can be said to be the subject of the present invention.

  This invention is made | formed in view of such a subject, and it aims at providing the electrical connector in which the contact connected to the other party contact to which the electric current for power supplies is supplied has a thermal radiation effect.

  The present inventor has found that this problem can be solved by configuring the electrical connector so that many outer surfaces of the contacts connected to the counterpart contact to which the power supply current is supplied are exposed from the housing and dissipate heat. Based on this, the inventors have invented the following new electrical connector.

  (1) An electrical connector into which a mating connector for connecting an electric wire is inserted and mounted on a printed circuit board, and has an opening into which the mating housing is fitted, and a hollow contact accommodating chamber connected to the opening. A rectangular parallelepiped housing, and at least one contact for electrically connecting the mating contact and the printed circuit board, the contact being connected to the mating contact and the printed circuit board An electrical connector having a lead portion and a heat dissipating piece extending from the lead portion.

  In the electrical connector according to the invention of (1), a mating connector for connecting electric wires is inserted. The electrical connector according to the invention of (1) is mounted on a printed circuit board. The electrical connector includes a rectangular parallelepiped housing and one or more contacts.

  The housing has an opening into which the mating housing is fitted, and a hollow contact accommodating chamber connected to the opening. The contact electrically connects the mating contact and the printed circuit board.

  The contact has a connection part, a lead part, and a heat dissipation piece. The connecting portion can be connected to the counterpart contact. The lead portion is connected to the printed board. And the thermal radiation piece is extended from the lead part.

  The electrical connector mounted on the printed circuit board may be a base connector or a jack, and the mating connector may be a plug connector or a power plug. The electrical connector may be a horizontal mounting connector in which the mating connector is inserted substantially parallel to the mounting surface of the printed circuit board, or a horizontal mounting connector in which the mating connector is inserted substantially parallel to the mounting surface of the printed circuit board. It may be.

  The housing has an insulating property. The insulating housing may be a housing made of a non-conductive material, and a synthetic resin can be molded to obtain an insulating housing having a desired shape.

  The housing may be rectangular, which means that the electrical connector and the mating connector according to the present invention are rectangular connectors having a rectangular coupling surface. The electrical connector according to the present invention has an opening. On the other hand, the mating connector has a header portion. And an opening and a header part can be mutually fitted.

  The contact has conductivity, and a conductive contact having a desired shape can be obtained by punching or bending a conductive metal plate. In consideration of easiness of processing, spring characteristics, conductivity, and the like, for example, a copper alloy is preferably used for the contact, but the contact is not limited to the copper alloy.

  For example, one contact can be a positive electrode and the other contact can be a negative electrode. In this case, a key groove may be provided in the opening of the electrical connector according to the present invention so that the polarity of the counterpart contact can be correctly connected to a pair of contacts, and a key is provided in the header of the counterpart connector guided in the key groove. Also good.

  For example, the electrical connector according to the invention of (1) is an electrical connector mounted on the printed circuit board so that the mating connector for connecting the wires can be inserted substantially parallel to the mounting surface of the printed circuit board, Is provided in the first side surface, and a rectangular parallelepiped housing having a hollow contact housing chamber opened in the first side surface and a blade-like connection piece connected to the mating contact are provided in the contact housing chamber. A pair of U-shaped contacts disposed opposite to each other, wherein the housing has a pair of notch portions facing in opposite directions, a second side surface and a third side surface adjacent to both wings of the first side surface. The contact extends from the base end of the connection piece so as to be reversed and has a strip-shaped heat dissipation piece facing the connection piece, and the outer surface of the heat dissipation piece has the cut surface. As to exposed to out portion may be configured.

  The electrical connector according to the invention of (1) is an electrical connector mounted on the printed circuit board so that the mating connector for connecting the wires can be inserted substantially perpendicular to the mounting surface of the printed circuit board. Is provided in the first side surface, and a rectangular parallelepiped housing having a hollow contact housing chamber opened in the first side surface and a blade-like connection piece connected to the mating contact are provided in the contact housing chamber. A pair of U-shaped contacts disposed opposite to each other, wherein the housing has a pair of notch portions facing in opposite directions, a second side surface and a third side surface adjacent to both wings of the first side surface. The contact has a strip-shaped heat radiation piece extending from the base end portion of the connection piece so as to be reversed and facing the connection piece. As exposed in part, it may be constructed.

  The electrical connector according to the invention of (1) is mounted on the printed circuit board so that the mating connector for connecting the wires can be inserted substantially parallel to the mounting surface of the printed circuit board. The electrical connector according to the invention of (1) may be mounted on the printed circuit board so that the mating connector for connecting the wires can be inserted substantially perpendicular to the mounting surface of the printed circuit board. The electrical connector includes a rectangular parallelepiped housing and a pair of U-shaped contacts.

  The housing has an opening into which the mating housing is fitted on the first side surface, and has a hollow contact accommodating chamber opened on the first side surface. In the pair of contacts, blade-shaped connection pieces that are connected to the mating contacts are arranged facing each other inside the contact accommodating chamber.

  The housing has a pair of notches on the second side surface and the third side surface facing in opposite directions. The second side surface and the third side surface are adjacent to both wings of the first side surface. The contact has a strip-shaped heat dissipating piece facing the connecting piece. The heat dissipating piece extends so as to be inverted from the base end portion of the connecting piece. And the outer surface of the thermal radiation piece has exposed to the notch part.

  In the electrical connector according to the invention of (1), the contact has a heat radiating piece extending from the lead portion thereof, and the outer surface of the strip-shaped heat radiating piece is exposed in the notch portion, so that it is supplied to the printed circuit board. The rated current value can be increased. In addition, it is possible to suppress internal heat generation of an electronic device incorporating this electrical connector.

  (2) The electrical connector according to (1), wherein the heat dissipating piece has a reinforcing tab that can be soldered to the printed circuit board.

  The electrical connector according to the invention of (2) is preferably configured such that a part of the heat radiating piece is bent and protrudes from the notch, and the heat radiating area can be expanded and the heat radiating effect can be improved. Moreover, since the electrical connector according to the invention of (2) has the reinforcing tab that can be soldered to the printed circuit board, the support strength to the printed circuit board is reinforced.

  (3) The electrical connector according to (1) or (2), wherein the mating connector is inserted substantially parallel to the mounting surface of the printed circuit board.

  The horizontal mounting type connector has an advantage that the mounting height of the printed circuit board can be reduced as compared with the vertical mounting type connector in which the mating connector is inserted substantially perpendicular to the mounting surface of the printed circuit board.

  (4) The electrical connector according to (1) or (2), wherein the mating connector is inserted substantially perpendicular to the mounting surface of the printed circuit board.

  The vertically mounted connector has an advantage that the mounting position on the printed circuit board is not limited as compared with the horizontally mounted connector in which the mating connector is inserted substantially horizontally with the mounting surface of the printed circuit board.

  In the electrical connector according to the present invention, since the contact has a heat radiating piece extending from the lead portion, the rated current value supplied to the printed circuit board can be increased. In addition, it is possible to suppress internal heat generation of an electronic device incorporating this electrical connector.

It is a perspective view which shows the structure of the electrical connector by 1st Embodiment of this invention, and is the state figure which arrange | positioned the electrical connector by 1st Embodiment, and the other party connector facing. It is a perspective exploded view showing the composition of the electrical connector by a 1st embodiment, and is the state figure which arranged the housing and the other party housing by a 1st embodiment facing each other. It is an external view which shows the structure of the electrical connector by 1st Embodiment, FIG. 3 (A) is a top view of an electrical connector, FIG.3 (B) is a front view of an electrical connector, FIG.3 (C) is FIG. ) Is a cross-sectional view taken along line XX. It is an external view which shows the structure of the electrical connector by 1st Embodiment, FIG. 4 (A) is a right view of an electrical connector, FIG.4 (B) is a YY arrow sectional drawing of FIG. 3 (B). is there. It is an external view which shows the structure of the housing with which the electrical connector by 1st Embodiment is equipped, FIG. 5 (A) is a top view of a housing, FIG.5 (B) is a front view of a housing, FIG.5 (C) is a lower surface of a housing. FIG. 5 (D) is a right side view of the housing, FIG. 5 (E) is a cross-sectional view taken along arrow X1-X1 in FIG. 5 (A), and FIG. 5 (F) is X2- in FIG. 5 (A). It is X2 arrow sectional drawing. It is an external view which shows the structure of one contact with which the electrical connector by 1st Embodiment is equipped, FIG. 6 (A) is a front view of a contact, FIG.6 (B) is a bottom view of a contact, FIG.6 (C) is a contact. FIG. 6D is a right side view of the contact. It is an external view which shows the structure of the other party contact inserted in the electrical connector by 1st Embodiment, FIG. 7 (A) is a top view of the other party contact, FIG.7 (B) is a left view of the other party contact, FIG. 7C is a front view of the mating contact, and FIG. 7D is a cross-sectional view taken along the line XX in FIG. It is a transverse cross section in the state where the other party connector was connected to the electrical connector by a 1st embodiment. It is a longitudinal cross-sectional view in the state by which the other party connector was connected to the electrical connector by 1st Embodiment. It is a perspective view which shows the structure of the electrical connector by 2nd Embodiment of this invention, and is the state figure which arrange | positioned the electrical connector by 2nd Embodiment, and the other party connector facing. It is a perspective exploded view showing the composition of the electric connector by a 2nd embodiment, and is the state figure which arranged the housing by the embodiment and the other party housing opposite. It is an external view which shows the structure of the electrical connector by 2nd Embodiment, FIG. 12 (A) is a top view of an electrical connector, FIG.12 (B) is a front view of an electrical connector, FIG.12 (C) is FIG. ) Is a cross-sectional view taken along line XX. FIG. 13A is an external view showing a configuration of an electrical connector according to a second embodiment, FIG. 13A is a right side view of the electrical connector, and FIG. 13B is a cross-sectional view taken along arrow YY in FIG. is there. It is an external view which shows the structure of one contact with which the electrical connector by 2nd Embodiment is equipped, FIG. 6 (A) is a front view of a contact, FIG.6 (B) is a bottom view of a contact, FIG.6 (C) is a contact. FIG. 6D is a right side view of the contact. It is a perspective view which shows the structure of the electrical connector by 3rd Embodiment of this invention, and is the state figure which arrange | positioned the electrical connector by 3rd Embodiment, and the other party connector facing. It is a perspective exploded view showing the configuration of the electrical connector according to the third embodiment, and is a state diagram in which the housing and the counterpart housing according to the third embodiment are arranged to face each other. It is an external view which shows the structure of the electrical connector by 3rd Embodiment, FIG. 17 (A) is a top view of an electrical connector, FIG.17 (B) is a front view of an electrical connector, FIG.17 (C) is FIG.17 (A). ) Is a cross-sectional view taken along line XX. It is an external view which shows the structure of the electrical connector by 3rd Embodiment, FIG.18 (A) is a right view of an electrical connector, FIG.18 (B) is a YY arrow sectional drawing of FIG.17 (B). is there. It is an external view which shows the structure of the housing with which the electrical connector by 3rd Embodiment is equipped, FIG. 19 (A) is a top view of a housing, FIG.19 (B) is a front view of a housing, FIG.18 (C) is a lower surface of a housing. 19D is a right side view of the housing, FIG. 19E is a cross-sectional view taken along arrow X1-X1 in FIG. 19A, and FIG. 19F is X2- in FIG. 19A. It is X2 arrow sectional drawing. It is a longitudinal cross-sectional view in the state by which the other party connector was connected to the electrical connector by 3rd Embodiment.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the following description, the electrical connector according to the embodiment of the present invention is a jack and the mating connector is a plug.

[First Embodiment]
(Configuration of electrical connector)
Initially, the structure of the electrical connector by 1st Embodiment of this invention is demonstrated. FIG. 1 is a perspective view showing the configuration of the electrical connector according to the first embodiment of the present invention, and is a state diagram in which the electrical connector and the mating connector according to the first embodiment are arranged to face each other. FIG. 2 is an exploded perspective view showing the configuration of the electrical connector according to the first embodiment, in which the housing according to the first embodiment and the counterpart housing are arranged to face each other.

  Referring to FIG. 1 or FIG. 2, the jack 10 according to the first embodiment is mounted on a printed circuit board 1p. The plug 20 according to the first embodiment connects a pair of electric wires 2w and 2w. A plug 20 can be inserted into the jack 10 substantially parallel to the mounting surface 11p of the printed circuit board 1p. The jack 10 according to the first embodiment constitutes a horizontally mounted connector into which the plug 20 is inserted substantially parallel to the mounting surface 11p of the printed circuit board 1p.

  1 or 2, the jack 10 includes a rectangular parallelepiped housing 1 and a pair of U-shaped contacts 3a and 3b. The plug 20 includes a rectangular parallelepiped housing (mating housing) 2 and a pair of contacts (mating contacts) 4a and 4b. The housing 2 includes a header part 21 and a frame part 22. A pair of contacts 4a and 4b and a pair of electric wires 2w and 2w are connected.

  Referring to FIG. 1 or FIG. 2, the housing 1 is provided with an opening 11 into which the header portion 21 is fitted in the first side surface 1 a. The housing 1 also has a hollow contact housing chamber 12 connected to the opening 11 on the first side face 1a.

  Referring to FIG. 1 or FIG. 2, the contact 3a has a blade-like connection piece 31 serving as a connection portion connected to the contact 4a. The contact 3b has a blade-like connection piece 31 serving as a connection portion connected to the contact 4a. These connection pieces 31 and 31 are arranged to face each other inside the contact accommodating chamber 12.

  Referring to FIG. 1 or FIG. 2, the housing 1 has a second side surface 1b and a third side surface 1c adjacent to both wings of the first side surface 1a. The second side surface 1b has a notch 13. The third side surface 1 c has a notch portion 14. And a pair of notch parts 13 * 14 are open | released so that it may go to the opposite direction.

  Referring to FIG. 1 or FIG. 2, the contact 3 a has a strip-shaped heat radiation piece 32 that extends (extends) from the base end portion of the connection piece 31 so as to be reversed. The heat radiation piece 32 faces the connection piece 31. The contact 3 b has a strip-shaped heat radiation piece 32 that extends (extends) so as to be inverted from the base end portion of the connection piece 31. The heat radiation piece 32 faces the connection piece 31.

  Referring to FIG. 1 or FIG. 2, the heat dissipating piece 32 of the contact 3 a has its outer surface exposed to the notch 13. On the other hand, the heat dissipating piece 32 of the contact 3b has its outer surface exposed to the notch 14.

  Next, the configuration of the jack 10 according to the first embodiment will be described. 3A and 3B are external views showing the configuration of the electrical connector according to the first embodiment. FIG. 3A is a plan view of the electrical connector, FIG. 3B is a front view of the electrical connector, and FIG. It is XX arrow sectional drawing of FIG. 3 (A).

  4A and 4B are external views showing the configuration of the electrical connector according to the first embodiment. FIG. 4A is a right side view of the electrical connector, and FIG. 4B is a YY arrow in FIG. FIG. 5A and 5B are external views showing the configuration of the housing provided in the electrical connector according to the first embodiment. FIG. 5A is a plan view of the housing, FIG. 5B is a front view of the housing, and FIG. Is a bottom view of the housing, FIG. 5D is a right side view of the housing, FIG. 5E is a cross-sectional view taken along arrow X1-X1 in FIG. 5A, and FIG. 5F is FIG. It is X2-X2 arrow sectional drawing of).

  Referring to FIGS. 1, 2, or 3, the heat dissipating piece 32 of the contact 3 a has a bottom surface 32 a that partially protrudes and can be soldered to the printed circuit board 1 p. A part of the heat radiation piece 32 of the contact 3b protrudes and has a bottom surface 32b that can be soldered to the printed circuit board 1p.

  Referring to FIG. 2 or 5, the housing 1 includes a pair of slit-shaped first grooves 15a and 15b, a pair of slit-shaped second grooves 16a and 16b, and a pair of slit-shaped third grooves 17a and 17b. Have. Thick surfaces of the pair of connection pieces 31 and 31 are inserted into the pair of first grooves 15a and 15b from the fourth side surface 1e facing the bottom surface 1d of the housing 1, respectively. The pair of first grooves 15 a and 15 b communicate with the contact accommodating chamber 12.

  Referring to FIGS. 2 and 3 to 5, the plate thickness surfaces of the pair of heat radiation pieces 32 and 32 are inserted into the pair of second grooves 16 a and 16 b from the fourth side surface 1 e, respectively. The second grooves 16a and 16b communicate with the pair of cutout portions 13 and 14, respectively.

  2 and 3 to 5, the third groove 17a communicates the first groove 15a and the second groove 16a. On the other hand, the third groove 17b communicates the first groove 15b and the second groove 16b. The contact 3a has a press-fitting piece 18a that is press-fitted into the bottom surface of the third groove 17a. The contact 3b has a press-fitting piece 18b that is press-fitted into the bottom surface of the third groove 17b.

  The jack 10 according to the first embodiment can easily incorporate the contact 3a toward the U-shaped groove formed by the first groove 15a, the second groove 16a, and the third groove 17a. Further, the jack 10 according to the first embodiment can easily incorporate the contact 3b toward the U-shaped groove formed by the first groove 15b, the second groove 16b, and the third groove 17b.

  Referring to FIGS. 1 to 5, a pair of key grooves 11 a and 11 b are provided in the opening 11 of the housing 1. On the other hand, the header portion 21 of the housing 2 is provided with a pair of keys 21a and 21b that are fitted and guided in the pair of key grooves 11a and 11b. Therefore, it is possible to prevent connection errors due to the difference in the polarity of the contacts.

  Referring to FIGS. 1 to 5, the jack 10 is provided with a latch 11 c on the fourth side surface 1 e of the housing 1. On the other hand, the plug 20 is provided with a lock lever 22 c in the frame portion 22. When the plug 20 is inserted into the jack 10, the lock lever 22c can be locked to the latch 11c. When the lever of the lock lever 22c is pushed, the engagement is released and the plug 20 can be pulled out from the jack 10.

  Next, the structure of the pair of contacts 3a and 3b will be described. In addition, since the contact 3a and the contact 3b are configured in line symmetry with respect to the housing 1, the contact 3a may be described as a representative.

  6A and 6B are external views showing the configuration of one of the contacts provided in the electrical connector according to the first embodiment. FIG. 6A is a front view of the contact, FIG. 6B is a bottom view of the contact, and FIG. C) is a left side view of the contact, and FIG. 6D is a right side view of the contact.

  Referring to FIG. 6, the connection piece 31 of the contact 3a has a lead portion 31a on the base end side. The heat radiating piece 32 of the contact 3a extends from the lead portion 31a. The connection piece 31 of the contact 3b has a lead portion 31b on the base end side (see FIG. 3). The heat radiating piece 32 of the contact 3b extends from the lead portion 31b.

  Referring to FIG. 1 or FIG. 3, the pair of lead portions 31 a and 31 b slightly protrude from the bottom surface 1 d of the housing 1. The bottom surfaces of these lead portions 31a and 31b can be soldered to the printed circuit board 1p. That is, the jack 10 according to the first embodiment constitutes a surface mount type connector. Contact pins can be provided on the pair of lead portions 31a and 31b so that the jack 10 can be a through-hole mounted connector.

  Next, the structure of the pair of contacts 4a and 4b provided in the plug 20 will be described. Although the contact 4a and the contact 4b are the same, they are distinguished by changing the reference numerals for convenience of explanation. The contact 4a may be described as a representative.

  FIG. 7 is an external view showing the configuration of the mating contact, FIG. 7A is a plan view of the mating contact, FIG. 7B is a left side view of the mating contact, and FIG. FIG. 7D is a front view of the counterpart contact, and FIG. 7D is a cross-sectional view taken along the line XX of FIG.

  FIG. 8 is a cross-sectional view of the electrical connector according to the embodiment with the counterpart connector connected thereto. FIG. 9 is a longitudinal sectional view of the electrical connector according to the embodiment in a state where the mating connector is connected.

  Referring to FIG. 7, the contact 4a and the contact 4b are formed of a developed conductive metal plate. The contact 4 a includes a long crimping portion 41 and a contact connecting portion 42. An electric wire 2 w is connected to the crimping part 41. The contact connection portion 42 is provided on the proximal end side of the crimping portion 41 and is connected to the connection piece 31.

  Referring to FIG. 7, the crimping portion 41 includes an insulation grip 41 a and a conductor grip 41 b that open in a U shape. Referring to FIG. 9, the insulation grip 41a crimps the covering portion of the electric wire 2w. The conductor grip 41b crimps the core wire of the electric wire 2w. A pair of contacts 4 a and 4 b that are crimped to the ends of the electric wires 2 w are inserted into the housing 2.

  Referring to FIG. 7, the contact connecting portion 42 has a pair of contact pieces 42a and 42b on the distal end side. The contact connecting portion 42 has a pair of guide pieces 42c and 42d on the base end side. The pair of contact pieces 42 a and 42 b can be connected so as to sandwich the connection piece 31. The pair of guide pieces 42c and 42d are formed in a box shape and held in a storage chamber inside the housing 2 (see FIG. 8 or FIG. 9).

(Electric connector action)
Next, the operation and effect of the jack 10 according to the first embodiment will be described. Referring to FIGS. 1 to 6, in the jack 10 according to the first embodiment, the outer surfaces of the pair of strip-like heat radiation pieces 32 and 32 are exposed to the notches 13 and 14, respectively. The rated current value to be supplied can be increased. Moreover, it becomes possible to suppress the internal heat generation of the electronic device incorporating the jack 10 according to the first embodiment.

  Furthermore, the jack 10 according to the first embodiment easily incorporates a pair of contacts 3a and 3b toward a pair of U-shaped grooves formed by the first groove, the second groove, and the third groove, respectively. Can do.

[Second Embodiment]
(Configuration of electrical connector)
Next, the configuration of the electrical connector according to the second embodiment of the present invention will be described. FIG. 10 is a perspective view showing the configuration of the electrical connector according to the second embodiment of the present invention, and is a state diagram in which the electrical connector and the mating connector according to the second embodiment are arranged to face each other. FIG. 11 is a perspective exploded view showing the configuration of the electrical connector according to the second embodiment, and is a state diagram in which the housing according to the embodiment and the counterpart housing are arranged to face each other.

  Referring to FIG. 10 or FIG. 11, the jack 50 according to the second embodiment is mounted on the printed circuit board 1p. The plug 20 can be inserted into the jack 50 substantially parallel to the mounting surface 11p of the printed circuit board 1p. In addition, since the plug 20 and the housing 1 by embodiment are the same as what was disclosed by 1st Embodiment, below, description may be omitted.

  Referring to FIG. 10 or FIG. 11, the jack 50 includes a rectangular parallelepiped housing 1 and a pair of U-shaped contacts 5a and 5b. The contact 3a has a blade-like connection piece 51 serving as a connection portion connected to the contact 4a. The contact 5b has a blade-like connection piece 51 serving as a connection portion connected to the contact 4a. These connection pieces 51 and 51 are arranged to face each other inside the contact accommodating chamber 12.

  Referring to FIG. 10 or FIG. 11, the contact 5 a has a strip-shaped heat radiation piece 52 that extends (extends) from the base end portion of the connection piece 51 so as to be reversed. The heat dissipating piece 52 faces the connecting piece 51. Further, the contact 5 b has a strip-shaped heat radiation piece 52 extending (extended) so as to be inverted from the base end portion of the connection piece 51. The heat dissipating piece 52 faces the connecting piece 51.

  Referring to FIG. 10 or FIG. 11, the heat radiating piece 52 of the contact 5 a has its outer surface exposed to the notch 13. On the other hand, the outer surface of the heat dissipating piece 52 of the contact 5 b is exposed to the notch 14.

  Subsequently, the configuration of the jack 50 according to the second embodiment will be described. 12A and 12B are external views showing the configuration of the electrical connector according to the second embodiment. FIG. 12A is a plan view of the electrical connector, FIG. 12B is a front view of the electrical connector, and FIG. It is XX arrow sectional drawing of FIG. 12 (A).

  13A and 13B are external views showing the configuration of the electrical connector according to the second embodiment. FIG. 13A is a right side view of the electrical connector, and FIG. 13B is a YY arrow in FIG. FIG.

  Referring to FIGS. 10 to 13, the heat dissipating piece 52 of the contact 5 a has a reinforcing tab 52 a that is partially bent and protrudes from the notch 13. The heat dissipating piece 52 of the contact 5 b has a reinforcing tab 52 b that is partially bent and protrudes from the notch portion 14. The pair of reinforcing tabs 52a and 52b can be soldered to the printed circuit board 1p.

  Referring to FIGS. 10 to 13, the plate thickness surfaces of the pair of heat radiation pieces 52 and 52 are inserted into the pair of second grooves 16 a and 16 b from the fourth side surface 1 e, respectively. The second grooves 16a and 16b communicate with the pair of cutout portions 13 and 14, respectively.

  Referring to FIGS. 5 and 10 to 13, the third groove 17 a communicates the first groove 15 a and the second groove 16 a. On the other hand, the third groove 17b communicates the first groove 15b and the second groove 16b. The contact 5a has a press-fitting piece 18a that is press-fitted into the bottom surface of the third groove 17a. The contact 5b has a press-fitting piece 18b that is press-fitted into the bottom surface of the third groove 17b.

  The jack 50 according to the second embodiment can easily incorporate the contact 5a toward the U-shaped groove formed by the first groove 15a, the second groove 16a, and the third groove 17a. Further, the jack 50 according to the second embodiment can easily incorporate the contact 5b toward the U-shaped groove formed by the first groove 15b, the second groove 16b, and the third groove 17b.

  Next, the structure of the pair of contacts 5a and 5b will be described. Since the contact 5a and the contact 5b are configured symmetrically with respect to the housing 1, the contact 5a may be described as a representative.

  14A and 14B are external views showing the configuration of one of the contacts provided in the electrical connector according to the first embodiment. FIG. 6A is a front view of the contact, FIG. 6B is a bottom view of the contact, and FIG. C) is a left side view of the contact, and FIG. 6D is a right side view of the contact.

  Referring to FIG. 14, the heat dissipating piece 52 of the contact 5a has a reinforcing tab 52a that is partially bent. The connection piece 51 of the contact 5a has a lead portion 51a on the base end side. The heat dissipation piece 52 of the contact 5a extends from the lead portion 51a. The connection piece 51 of the contact 5b has a lead portion 51b on the base end side (see FIG. 12). The heat dissipation piece 52 of the contact 5b extends from the lead portion 51b.

  Referring to FIG. 10 or FIG. 12, the pair of lead portions 51 a and 51 b slightly protrude from the bottom surface 1 d of the housing 1. The bottom surfaces of these lead portions 51a and 51b can be soldered to the printed circuit board 1p. That is, the jack 50 according to the second embodiment constitutes a surface mount type connector. Contact pins can be provided on the pair of lead portions 51a and 51b so that the jack 50 can be a through-hole mounted connector.

(Electric connector action)
Next, operations and effects of the jack 50 according to the second embodiment will be described. Referring to FIGS. 10 to 13, in the jack 50 according to the second embodiment, a part of the pair of heat dissipating pieces 52 and 52 is bent and protrudes into the notches 13 and 14 respectively, so that the heat dissipating area is increased. The heat dissipation effect can be improved. In addition, it is possible to suppress internal heat generation of the electronic device incorporating the jack 10 according to the second embodiment.

  Furthermore, the jack 50 according to the second embodiment easily incorporates a pair of contacts 5a and 5b toward a pair of U-shaped grooves formed by the first groove, the second groove, and the third groove, respectively. Can do. Further, the jack 50 according to the second embodiment has a pair of reinforcing tabs 52a and 52b that can be soldered to the printed circuit board 1p, so that the support strength to the printed circuit board 1p is reinforced.

[Third Embodiment]
(Configuration of electrical connector)
Next, the configuration of the electrical connector according to the third embodiment of the present invention will be described. FIG. 15 is a perspective view showing the configuration of the electrical connector according to the third embodiment of the present invention, and is a state diagram in which the electrical connector and the mating connector according to the third embodiment are arranged to face each other. FIG. 16 is an exploded perspective view showing the configuration of the electrical connector according to the third embodiment, and is a state diagram in which the housing and the counterpart housing according to the third embodiment are arranged to face each other.

  Referring to FIG. 15 or FIG. 16, the jack 60 according to the third embodiment is mounted on the printed circuit board 1p. The plug 80 according to the third embodiment connects a pair of electric wires 2w and 2w. A plug 80 can be inserted into the jack 60 substantially perpendicular to the mounting surface 11p of the printed circuit board 1p. The jack 60 according to the third embodiment constitutes a vertically mounted connector in which the plug 80 is inserted substantially perpendicularly to the mounting surface 11p of the printed circuit board 1p.

  15 or 16, the jack 60 includes a rectangular parallelepiped housing 6 and a pair of U-shaped contacts 5a and 5b. The plug 80 includes a rectangular parallelepiped housing (mating housing) 8 and a pair of contacts (mating contacts) 4a and 4b. The housing 8 includes a header part 81 and a frame part 82. A pair of contacts 4a and 4b and a pair of electric wires 2w and 2w are connected.

  Referring to FIG. 15 or FIG. 16, the housing 6 is provided with an opening 61 into which the header portion 81 is fitted in the first side surface 6 a. Further, the housing 6 has a hollow contact housing chamber 62 connected to the opening 61 on the first side surface 6a.

  Referring to FIG. 15 or FIG. 16, the contact 5a has a blade-like connection piece 51 serving as a connection portion connected to the contact 4a. The contact 5b has a blade-like connection piece 51 serving as a connection portion connected to the contact 4a. These connection pieces 51 and 51 are arranged to face each other inside the contact accommodating chamber 62.

  Referring to FIG. 15 or FIG. 16, the housing 6 has the second side surface 6b and the third side surface 6c adjacent to both wings of the first side surface 6a. The second side surface 6 b has a notch 63. The third side surface 6 c has a notch 64. And a pair of notch parts 63 * 64 are open | released so that it may go to the direction which opposes.

  Referring to FIG. 15 or FIG. 16, the contact 5 a has a strip-shaped heat radiation piece 52 that extends (extends) from the base end portion of the connection piece 51 so as to be inverted. The heat dissipating piece 52 faces the connecting piece 51. Further, the contact 5 b has a strip-shaped heat radiation piece 52 extending (extended) so as to be inverted from the base end portion of the connection piece 51. The heat dissipating piece 52 faces the connecting piece 51.

  Referring to FIG. 15 or FIG. 16, the outer surface of the heat dissipating piece 52 of the contact 5 a is exposed to the notch 63. On the other hand, the outer surface of the heat dissipating piece 52 of the contact 5 b is exposed to the notch 64.

  Subsequently, the configuration of the jack 60 according to the third embodiment will be described. 17A and 17B are external views showing the configuration of the electrical connector according to the third embodiment. FIG. 17A is a plan view of the electrical connector, FIG. 17B is a front view of the electrical connector, and FIG. It is XX arrow sectional drawing of FIG. 17 (A).

  18A and 18B are external views showing the configuration of the electrical connector according to the third embodiment. FIG. 18A is a right side view of the electrical connector, and FIG. 18B is a YY arrow in FIG. FIG. FIG. 19 is an external view showing a configuration of a housing provided in the electrical connector according to the third embodiment. FIG. 19A is a plan view of the housing, FIG. 19B is a front view of the housing, and FIG. Is a bottom view of the housing, FIG. 19D is a right side view of the housing, FIG. 19E is a cross-sectional view taken along arrow X1-X1 in FIG. 19A, and FIG. 19F is FIG. It is X2-X2 arrow sectional drawing of).

  Referring to FIGS. 15 to 17, the heat dissipating piece 52 of the contact 5 a has a reinforcing tab 52 a that is partially bent and protrudes from the notch 63. The heat radiating piece 52 of the contact 5 b has a reinforcing tab 52 b that is partially bent and protrudes from the notch 64. The pair of reinforcing tabs 52a and 52b can be soldered to the printed circuit board 1p.

  Referring to FIGS. 15 to 19, the housing 6 includes a pair of slit-shaped first grooves 65a and 65b, a pair of slit-shaped second grooves 66a and 66b, and a pair of slit-shaped third grooves 67a and 67b. Have. A pair of connection pieces 51 and 51 are inserted into the pair of first grooves 65a and 65b substantially parallel to the bottom surface of the contact housing chamber 62, respectively. The pair of first grooves 65 a and 65 b communicate with the contact accommodating chamber 62.

  Referring to FIGS. 15 to 19, the pair of second grooves 66a and 66b are inserted with the plate thickness surfaces of the pair of heat radiation pieces 52 and 52 from the first side surface 1a, respectively. The second grooves 66a and 66b communicate with the pair of notches 63 and 64, respectively.

  Referring to FIGS. 15 to 19, the third groove 67a communicates the first groove 65a and the second groove 66a. On the other hand, the third groove 67b communicates the first groove 65b and the second groove 66b. The contact 5a has a press-fitting piece 18a that is press-fitted into the bottom surface of the third groove 67a. The contact 5b has a press-fitting piece 18b that is press-fitted into the bottom surface of the third groove 67b.

  The jack 60 according to the third embodiment can easily incorporate the contact 5a toward the U-shaped groove formed by the first groove 65a, the second groove 66a, and the third groove 67a. Further, the jack 60 according to the third embodiment can easily incorporate the contact 5b toward the U-shaped groove formed by the first groove 65b, the second groove 66b, and the third groove 67b.

  Referring to FIGS. 15 to 19, a keyway 61 a is provided in the opening 61 of the housing 6. On the other hand, the header 81 of the housing 8 is provided with a key 81a that is fitted and guided in a pair of key grooves 61a. Therefore, it is possible to prevent connection errors due to the difference in the polarity of the contacts.

  Referring to FIG. 15 or FIG. 16, the jack 60 is provided with a latch 61 c on the fourth side surface 6 e of the housing 6. On the other hand, the plug 80 is provided with a lock lever 82 c in the frame portion 82. When the plug 80 is inserted into the jack 60, the lock lever 82c can be locked to the latch 61c. When the lever of the lock lever 82c is pushed, the engagement is released and the plug 80 can be pulled out from the jack 60.

  Referring to FIG. 14, the heat dissipating piece 52 of the contact 5a has a reinforcing tab 52a that is partially bent. The connection piece 51 of the contact 5a has a lead portion 51a on the base end side. The heat dissipation piece 52 of the contact 5a extends from the lead portion 51a. The connection piece 51 of the contact 5b has a lead portion 51b on the base end side (see FIG. 12). The heat dissipation piece 52 of the contact 5b extends from the lead portion 51b.

  Referring to FIGS. 15 to 17, the pair of lead portions 51 a and 51 b slightly protrude from the bottom surface 6 d of the housing 6. The bottom surfaces of these lead portions 51a and 51b can be soldered to the printed circuit board 1p. That is, the jack 60 according to the third embodiment constitutes a surface mount type connector. Contact pins may be provided on the pair of lead portions 51a and 51b so that the jack 60 can be a through-hole mounted connector.

  Next, the structure of the pair of contacts 4a and 4b provided in the plug 80 will be described. Although the contact 4a and the contact 4b are the same, they are distinguished by changing the reference numerals for convenience of explanation. The contact 4a may be described as a representative. FIG. 20 is a longitudinal sectional view in a state where the mating connector is connected to the electrical connector according to the third embodiment.

  Referring to FIG. 20, the expanded contact conductive metal plate is formed in the contact 4a and the contact 4b. The contact 4 a includes a long crimping portion 41 and a contact connecting portion 42. An electric wire 2 w is connected to the crimping part 41. The contact connecting portion 42 is provided on the proximal end side of the crimping portion 41 and is connected to the connecting piece 51.

  Referring to FIG. 20, the crimping portion 41 includes an insulation grip 41 a and a conductor grip 41 b that open in a U shape. Referring to FIG. 20, the insulation grip 41a crimps the covering portion of the electric wire 2w. The conductor grip 41b crimps the core wire of the electric wire 2w. A pair of contacts 4 a and 4 b that are crimped to the ends of the electric wires 2 w are inserted into the housing 2.

  Referring to FIG. 20, the contact connecting portion 42 has a pair of contact pieces 42a and 42b on the distal end side. The contact connecting portion 42 has a pair of guide pieces 42c and 42d on the base end side. The pair of contact pieces 42 a and 42 b can be connected so as to sandwich the connection piece 51. The pair of guide pieces 42 c and 42 d are formed in a box shape and are held in a storage chamber inside the housing 8.

(Electric connector action)
Next, operations and effects of the jack 60 according to the third embodiment will be described. 15 to 20, in the jack 60 according to the third embodiment, a part of the pair of heat dissipating pieces 52 and 52 is bent and protrudes into the notches 63 and 64, respectively, so that the heat dissipating area is increased. The heat dissipation effect can be improved. It is also possible to suppress internal heat generation of the electronic device incorporating the jack 60 according to the third embodiment.

  Furthermore, the jack 60 according to the third embodiment easily incorporates a pair of contacts 5a and 5b toward a pair of U-shaped grooves formed by the first groove, the second groove, and the third groove, respectively. Can do. Further, the jack 60 according to the third embodiment has a pair of reinforcing tabs 52a and 52b that can be soldered to the printed circuit board 1p, so that the support strength to the printed circuit board 1p is reinforced.

  The jack 60 according to the third embodiment does not have a pair of reinforcing tabs 52a and 52b that can be soldered to the printed circuit board 1p, and a pair of heat radiation pieces are attached to the printed circuit board 1p in the same manner as the jack 10 according to the first embodiment. You may comprise so that it may solder-join.

1 housing 1p printed circuit board 2 housing (mating housing)
2w Electric wire 3a, 3b A pair of contacts 4a, 4b Contacts (mating contacts)
10 jack (electrical connector)
11 opening 11p mounting surface (mounting surface of printed circuit board)
12 Contact accommodating chamber 20 Plug (mating connector)
31 Connection piece (connection part)
31a / 31b Lead part 32 Heat radiation piece

Claims (3)

An electrical connector mounted on the printed circuit board so that the mating connector for connecting the wires can be inserted substantially parallel to the mounting surface of the printed circuit board,
A rectangular parallelepiped first housing having an opening into which the mating housing is fitted on the first side surface and having a hollow contact housing chamber opened on the first side surface;
A pair of U-shaped first contacts arranged to face each other inside the contact storage chamber with a blade-like connection piece connected to the counterpart contact;
The first housing has a pair of cutout portions facing opposite directions on the second side surface and the third side surface adjacent to both wings on the first side surface,
The first contact may extend to invert from the proximal end of the connecting piece, have a strip-shaped heat radiation member opposite to the connecting piece,
The heat dissipating piece has an outer surface that is exposed to the notch and has a bottom surface that can be soldered to the mounting surface of the printed circuit board . 2. The electrical connector according to claim 1, wherein the heat radiating piece has a reinforcing tab that can be soldered to the printed circuit board, with a part of the heat radiating piece protruding from the notch . An electrical connector mounted on the printed circuit board so that the mating connector for connecting the wires can be inserted substantially perpendicular to the mounting surface of the printed circuit board,
A rectangular parallelepiped second housing having an opening into which the mating housing is fitted on the first side surface and having a hollow contact housing chamber opened on the first side surface;
A pair of U-shaped second contacts arranged to face each other inside the contact housing chamber, a blade-like connection piece connected to the counterpart contact,
The second housing has a pair of cutout portions facing opposite directions on the second side surface and the third side surface adjacent to both wings of the first side surface,
The second contact extends from the base end of the connection piece so as to be reversed, and has a strip-shaped heat dissipation piece facing the connection piece,
The heat dissipating piece has a reinforcing tab that can be soldered to the mounting surface of the printed circuit board with a part of the heat dissipating part protruding from the notch while the outer surface is exposed to the notch. , Electrical connector.

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