JP5322846B2 - Contact and connector using the contact - Google Patents

Description

  The present invention relates to a connector used in an electric device or an electronic device such as a digital video camera or a portable music device, and a connection structure of a contact used in the connector, and particularly arranged in a range of 0.4 to 0.6 mm. The present invention relates to a connection structure for soldering to a contact.

The connector generally includes a housing that is at least a plurality of metal contacts and an insulator in which the contacts are arranged and held. The housing is provided with a fitting port for receiving a mating connector. The contact has a contact portion that contacts the contact of the mating connector, a fixed portion held by the housing, and a connection portion to which the cable is soldered.
As patent documents, Patent Document 1 (Japanese Patent Application Laid-Open No. 2008-218144) and Patent Document 2 (Japanese Patent Application No. 2003-109701) already proposed by the present applicant are shown.

According to the summary of Japanese Patent Application Laid-Open No. 2008-218144, the two-divided shells 16 and 16 can be firmly held and reliable conduction can be achieved between the cable 40 and the shell 16 and between the shells 16 and 16. An object of the present invention is to provide an electrical connector that can be grounded, and a plurality of contacts 14 connected to the cable 40, a housing 12 in which the contacts 14 are held and arranged, and a holding means that covers the housing 12 and holds the cable 40 In the electrical connector 10 including the two-divided shells 16 and 16 and the insulating member 20 that covers the shells 16 and 16, one shell 16 is provided with a locking portion 42, and the other shell 16 is provided with an engaging portion 44. When both the shells 16 and 16 are fitted together, both the shells 16 and 16 are engaged with each other by engaging the engaging portion 42 and the engaging portion 44. 16, 16 electrical connector structure which can be achieved is disclosed by conductive. Incidentally, in the scope of claims of Japanese Patent Application Laid-Open No. 2008-218144, as claimed in claim 1, a plurality of contacts connected to a cable, a housing in which the contacts are held and arranged, a holding means for covering the housing and holding the cable An electrical connector comprising a two-part shell having an insulating member and an insulating member covering the shell, wherein one shell is provided with a locking portion, the other shell is provided with an engaging portion, and both the shells are fitted. 3. The electrical connector according to claim 2, wherein both the shells are electrically connected when the engaging portions and the engaging portions are engaged with each other. Both shells are made conductive by forming a groove, making the engaging portion of the other shell an engaging protrusion, and inserting the engaging protrusion into the locking groove. The electrical connector according to claim 1, wherein, according to claim 3, when one of the shells is provided with a locking hole, the other shell is provided with an engagement piece, and both the shells are fitted together. 3. The electrical connector according to claim 1 or 2, wherein both the shells are electrically connected by the engagement of the locking hole and the engagement piece. An electrical connector or the like according to any one of claims 1 to 3 is disclosed. According to the summary of Japanese Patent Laid-Open No. 2003-109701, a connector that does not cause a connection failure or insulation failure without deformation of the block 12 due to heat of soldering or welding during connection of conductors, and does not increase costs. In the connector 10 comprising a required number of contacts and a block 12 on which the contacts are held and fixed, the plate of heat-insulating electric insulator on the conductor connecting side of the contacts A connector having a structure in which concave portions 20 are provided at predetermined intervals on the contact arrangement side in the thickness direction of the plate-like piece 18 is disclosed. Incidentally, in the claims of Japanese Patent Application Laid-Open No. 2003-109701, as claimed in claim 1, in a connector comprising a required number of contacts and a block in which the contacts are held and fixed, a heat resistance is provided on the conductor connecting side of the contacts. A connector characterized in that a plate-like piece of an electrically insulating material is fixed to a block, and according to claim 2, recesses are provided at predetermined intervals on the contact arrangement side in the thickness direction of the plate-like piece. The connector according to claim 1 or 3, wherein the plate-like piece and the block having different heat resistance are integrated into a single structure. The connector according to claim 3, wherein the plate-like piece is made of ceramics, and the plate-like piece and the block having different heat resistance are integrally formed as a connector according to claim 3. Connectors, etc. according to claim 3, characterized in that the integral is disclosed by retrofit is.

In recent years, with the miniaturization of electrical equipment and electronic equipment, the demand for miniaturization of connectors has become stronger, and recently, a demand for pitches of 0.4 to 0.6 mm has come out.
In the connector having the conventional structure, there is a problem that soldering cannot be surely performed at a regular position when the pitch is 0.4 to 0.6 mm.
In Patent Document 1, the core wire of the cable can be placed on the bent portion of the contact, but the core wire cannot be positioned (particularly in the depth direction), and the holes for inserting the contacts are arranged in a staggered manner in the upper and lower sides. Therefore, the pitch of 0.4 to 0.6 mm could not be achieved.
In Patent Document 2, the core wire of the cable can be placed on the plane of the contact, but the core wire cannot be positioned (particularly in the depth direction).

  The present invention has been made in view of such conventional problems, and does not provide a contact connection structure and a connector that can position a cable core (particularly in the depth direction) and that can be securely soldered. It is what.

  This object is a contact arranged at a pitch of 0.4 to 0.6 mm as in the contact according to claim 1, wherein the contact has a contact part that contacts the mating contact and a connection part to which the cable is soldered. The connecting portion of the contact is provided with a connecting piece to which the core wire of the cable protruding to one side in the arrangement direction is soldered, and a stopper piece in the same direction as the connecting piece and perpendicular to the connecting piece is provided. This can be achieved by a contact characterized by being provided.

  This object is a connector in which two types of contacts are alternately arranged in a row at a pitch of 0.4 to 0.6 mm, as in the connector according to claim 2, wherein the contact portion and the cable are in contact with the mating contact. A housing having first and second contacts alternately arranged in one row having connection portions to which solder is to be soldered, a fitting port in which the first and second contacts are arranged and held, and a mating connector is inserted A connector in which the connection portions of the first and second contacts are vertically distributed in the thickness direction, wherein the cable core wire protrudes on one side in the arrangement direction to the connection portions of the first and second contacts A connecting piece to be soldered, and a stopper piece in the same direction as the connecting piece and perpendicular to the connecting piece is provided only on the second contact. It can be achieved by.

The connector according to claim 3, wherein an insulator having a plurality of projecting walls projecting between the adjacent contacts is provided on the opposite side to the fitting opening of the housing, integrally or separately from the housing. The connector according to claim 2.
The connector according to claim 4 is the connector according to claim 3, wherein the height of the protruding wall is 0.4 to 0.6 mm.
Furthermore, the connector according to claim 5 is the connector according to claim 3 or 4, wherein a space in which the core wire of the cable enters is secured by the connection piece, the stopper piece, and the protruding wall.

As is apparent from the above description, the contact connecting structure and connector according to the present invention provide the following excellent effects.
(1) In a contact arranged at a pitch of 0.4 to 0.6 mm as in the contact according to claim 1, the contact having a contact portion that contacts the mating contact and a connection portion to which the cable is soldered The connection portion of the contact is provided with a connection piece to which the core wire of the cable protruding to one side in the arrangement direction is soldered, and a stopper piece is provided in the same direction as the connection piece and perpendicular to the connection piece Therefore, even if the pitch is 0.4 to 0.6 mm, the core wire of the cable can be positioned, reliable soldering can be performed, and a stable connection can be obtained.
(2) A connector in which two types of contacts are alternately arranged in a row at a pitch of 0.4 to 0.6 mm as in the connector described in claim 2, wherein the contact portion and the cable that come into contact with the mating contact are A housing having two types of first and second contacts alternately arranged in a row having connecting portions to be soldered, and a fitting port in which the first and second contacts are arranged and held and a mating connector is inserted. And the connector of the cable in which the connecting portions of the first and second contacts are vertically distributed in the thickness direction has a core wire of the cable protruding to one side in the arrangement direction at the connecting portion of the first and second contacts. A connector that is provided with a connection piece to be soldered, and a stopper piece that is provided in the same direction as the connection piece and perpendicular to the connection piece only on the second contact. Since it has, at a pitch of 0.4 to 0.6 mm, can be positioned in the core of the cable, it is reliable soldering, it is possible to obtain a stable connection.
(3) The connector according to claim 3 is provided with an insulator having a plurality of projecting walls projecting between the adjacent contacts, integrally or separately from the housing, on a side opposite to the fitting opening of the housing. The connector according to claim 2, wherein the cable core wire can be positioned even with a pitch of 0.4 to 0.6 mm, reliable soldering can be performed, and a stable connection can be obtained. Even at narrow pitches, connection failures such as short circuits are unlikely to occur between adjacent contacts.
(4) Since the connector according to claim 4 is the connector according to claim 3, wherein the height of the protruding wall is 0.2 to 0.4 mm, 0.4 to 0.6 mm. Even with this pitch, the cable core wire can be positioned, reliable soldering can be performed, and a stable connection can be obtained, and even with a narrow pitch, connection failure such as a short circuit between adjacent contacts can be more reliably prevented.
(5) The connector according to claim 5, wherein the connecting piece, the stopper piece, and the protruding wall secure a space for the core wire of the cable to enter. Therefore, even with a pitch of 0.4 to 0.6 mm, the cable core wire can be positioned, reliable soldering can be performed, a stable connection can be obtained, and connection failure such as a short circuit between adjacent contacts even at a narrow pitch. Can be surely prevented.

(A) It is the perspective view which looked at the connector of this invention from the fitting port direction. (B) It is the perspective view which looked at the connector of this invention from the connection direction. (C) It is the perspective view which looked at the state where the cable was hold | maintained at the connector of this invention from the connection direction. (D) It is sectional drawing which cut the electric connector of the state of (C) in a certain contact part. (A) It is the perspective view which looked at the 1st contact from the connection direction. (B) It is the perspective view which looked at the 2nd contact from the connection direction. (A) It is the perspective view which looked at the housing from the fitting direction. (B) It is the perspective view which looked at the housing from the connection direction. (C) It is sectional drawing sectioned on a certain contact insertion hole part. It is a perspective view of an insulator. It is a perspective view of a shell. (A) It is sectional drawing which cut the connector of this invention in the some 1st contact part. (B) It is sectional drawing which cut the connector of this invention in the 2nd contact part with a certain.

A feature of the present invention is that the contacts 14 and 16 are arranged at a pitch of 0.4 to 0.6 mm as in the contacts 14 and 16 according to the first aspect, and the contact portions 28 and 34 that come into contact with the mating contacts are provided. In the contacts 14 and 16 having the connection portions 32 and 38 to which the cable 60 is soldered, the core wire of the cable 60 protruding to one side in the arrangement direction is soldered to the connection portions 32 and 38 of the contacts 14 and 16. 3. The connector according to claim 2, further comprising: a connecting piece 22, a stopper piece 24 provided in the same direction as the connecting piece 22 and perpendicular to the connecting piece 22. 10 is a connector 10 in which two types of contacts 14 and 16 are alternately arranged in a row at a pitch of 0.4 to 0.6 mm, and contacts a mating contact. Two types of first and second contacts 14 and 16 and first and second contacts 14 arranged alternately in one row having contact portions 28 and 34 and connection portions 32 and 38 to which the cable 60 is soldered, The connector 10 includes a housing 12 having a fitting port 20 into which a mating connector is inserted, and in which the connecting portions of the first and second contacts are distributed vertically in the thickness direction. The connection portions 22 and 38 of the second contacts 14 and 16 are provided with connection pieces 22 to which the core wires of the cable 60 projecting to one side in the arrangement direction are soldered, and only the second contact 16 and the connection pieces 22 and The connector 10 is characterized in that a stopper piece 24 is provided in the same direction and perpendicular to the connection piece 22.
That is, the connection in which the core wire of the cable 60 protruding to one side in the arrangement direction is soldered to the connection portions 32 and 38 of the first and second contacts 14 and 16 that are alternately arranged in one row in two types. A piece 22 is provided, and only the second contact 16 is provided with a stopper piece 24 in the same direction as the connection piece 22 and perpendicular to the connection piece 22, and reliable positioning and soldering is possible even at a pitch of 0.4 to 0.6 mm. It is possible to attach.

An embodiment of the connector of the present invention will be described based on the drawings. FIG. 1A is a perspective view of the connector of the present invention as viewed from the fitting port direction, FIG. 1B is a perspective view of the connector of the present invention as viewed from the connection direction, and FIG. 1C is the connection direction of the connector of the present invention. It is the top view seen. FIG. 2A is a perspective view of the first contact as viewed from the connection direction, and FIG. 2B is a perspective view of the second contact as viewed from the connection direction. 3A is a perspective view of the housing as viewed from the fitting direction, FIG. 3B is a perspective view of the housing as viewed from the connection direction, and FIG. 3C is a cross-sectional view taken along a contact insertion hole portion. 4 is a perspective view of the insulator, and FIG. 5 is a perspective view of the shell. 6A is a cross-sectional view of the connector of the present invention taken along a first contact portion, and FIG. 6B is a cross-sectional view of the connector of the present invention taken along a second contact portion.
The connector 10 of the present invention includes at least a housing 12 and two types of contacts (a first contact 14 and a second contact 16).

  Before describing each part, the cable 60 will be described. The cable 60 has a conductive core wire, a coating covering the core wire, a metal braid covering a plurality of coated core wires in a twisted state, and an outer covering covering the braid.

  First, the contact that is the point of the present invention will be described. In the connector of the present invention, two types of contacts (first contact 14 and second contact 16) are used. As materials of the two types of contacts (first contact 14 and second contact 16), springiness, conductivity, etc. are required, and examples thereof include brass, beryllium copper, and phosphor bronze. Two types of contacts (the first contact 14 and the second contact 16) are fixed to the insertion hole 42 of the housing 12 by press-fitting, hooking (lance), welding, or the like. In this embodiment, it is fixed by press fitting.

  The first contact 14 and the second contact 16 are substantially plate-shaped pieces, and the first contact portion 28 of the first contact and the second contact portion 34 of the second contact 16 are alternately arranged in a line. Although arranged, the first connection portion 32 of the first contact and the second connection portion 38 of the second contact 16 are distributed vertically in the thickness direction. That is, the connection part interval between adjacent pitches is widened by distributing the connection parts 32 and 38 of the contacts 14 and 16 vertically in the thickness direction. The first contact 14 and the second contact 16 include a contact portion (first contact portion 28, second contact portion 34) that contacts the mating contact and a fixing portion (first fixing portion 30, The second fixing portion 36) and the connection portion (first connection portion 32, second connection portion 38) to which the core wire of the cable 60 is soldered, and the core wire of the cable protruding from the connection portion to one side in the arrangement direction Only the connection piece 22 to be soldered and the second contact 16 have a stopper piece 24 in the same direction as the connection piece 22 and perpendicular to the connection piece 22. Since the first contact portion 28 of the first contact 14 and the second contact portion 34 of the second contact 16 are alternately arranged in one row on one side in the thickness direction, the first contact 14 The depth direction of the connection portion 32 is the housing 12 that is an insulator, but the depth direction of the second connection portion 38 of the second contact 16 is the first connection portion 32, so when connecting the cable 60 In addition, the stopper piece 24 is provided only on the second contact 16 so that the cable 60 and the first connection portion 32 do not contact each other. However, the stopper piece 24 has a role of positioning in addition to such a role.

  The first contact portion 28 and the second contact portion 34 are portions that come into contact with the mating contact, and are appropriately designed in consideration of contact force, connector miniaturization, processing method, and the like. In the present embodiment, a convex shape is formed so as to make contact with the mating contact easy and cantilevered.

  The first fixing portion 30 and the second fixing portion 36 are portions that are held by the housing 12, and are appropriately designed in consideration of holding force, connector miniaturization, assembly method, and the like. In this embodiment, press-fitting is used, but any method may be used as long as it can be held.

  The first connection portion 32 and the second connection portion 38 are provided with a connection piece 22 to which the core wire of the cable protruding to one side in the arrangement direction is soldered. A stopper piece 24 is provided in the same direction as the connection piece 22 and perpendicular to the connection piece 22. Positioning and soldering are performed by placing the core wire of the cable 60 on the connecting piece 22 and abutting the core wire of the cable 60 against the stopper piece 24. By providing the connection piece 22, an area for placing the core wire of the cable 60 is secured, and the contacts (first contact 14, second contact 16) are inserted into the housing 12 perpendicular to the plate thickness. And reliable soldering is possible even in the case of 0.4 to 0.6 mm pitch. The shape and size of the connection piece 22 may be designed as long as it can be soldered. In the present embodiment, the protrusion is about 0.4 to 0.6 mm.

  The stopper piece 24 positions the cable 60 in the depth direction by abutting the core wire of the cable 60. The shape and size of the stopper piece 24 may be designed as appropriate in consideration of narrow pitch, workability, strength, etc., as long as positioning in the depth direction can be achieved. The stopper piece 24 may be connected to the connecting portion (the first connecting portion 32, the second connecting portion 38) or may be connected to the connecting piece 22. The reason why the stopper piece 24 is provided only on the second contact 16 is to prevent the cable 60 from coming into contact with the first contact 14 when soldering to the cable 60. However, considering the positioning, it is desirable to provide all contacts.

  Next, the housing 12 will be described. The housing 12 is an electrically insulating plastic and is manufactured by a known technique of injection molding. The material is appropriately selected in consideration of dimensional stability, workability, cost, etc. Generally, polybutylene terephthalate is used. (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), and synthetic materials thereof. The housing 12 has a main body portion 19 and a protruding portion 21, and the main body portion 19 is provided with an insertion hole 42 in which the plurality of the first contacts 14 and the second contacts 16 are mounted. It is fixed by press-fitting, hooking (lance), welding or the like.

The main body 19 of the housing 12 is provided with a fitting port 20 into which a mating connector is inserted. The shape and size of the fitting port 20 may be designed as long as the mating connector can be fitted, and is appropriately designed to match the shape and size of the mating connector.
Further, a protruding portion 21 protruding from the main body portion 19 is provided on the connection portion side of the housing 12 (the side opposite to the fitting port 20), and the protruding portion 21 is provided with a concave portion 27 into which the insulator 18 is inserted. It has been. The shape and size of the recess 27 may be designed as appropriate in consideration of holding force, workability, etc., as long as the insulator 18 is inserted.

Next, the insulator 18 will be described. This insulator 18 is an electrically insulating plastic, and is manufactured by a known technique of injection molding. This material is appropriately selected in consideration of dimensional stability, workability, cost, etc. In general, polybutylene is used. Examples thereof include terephthalate (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), and synthetic materials thereof.
The insulator 18 is substantially plate-shaped and has a main body 40 and a protruding wall 26. The protruding wall 26 of the insulator 18, the connection piece 22 of the contact (first contact 14, second contact 16), and the stopper piece 24 form a space into which the core wire of the cable 60 enters, and the protruding wall 26 is for insulation between the contacts (the first contact 14 and the second contact 16) and for preventing the cable 60 from falling.

  The shape and size of the protruding wall 26 are appropriately designed in consideration of the above role, strength, narrow pitch, workability, and the like. The protruding wall 26 is preferably protruded by 0.2 to 0.4 mm. If it is 0.2 mm or less, insulation is not achieved, and if it is 0.4 mm or more, it is difficult to process. In this embodiment, the protrusion is 0.3 mm.

  Next, the shell 17 will be described. The shell 17 is made of metal and is manufactured by a known technique of press working. The material is required to have springiness, conductivity, etc., and examples thereof include brass, beryllium copper, and phosphor bronze. The shell 17 is fixed to the housing 12 by press-fitting, hooking (lance) or the like. In this embodiment, it is fixed by a hook (lance). The shell 17 has a box shape, and the shell 17 covers the housing 12, so that the fitting port side is along the housing 12. The shape and size of the shell 17 is adapted to the shape and size of the housing 12 and is appropriately designed in consideration of strength, workability, connector miniaturization, and the like. A lance 44 for fixing to the housing 12 is provided on the opposite side of the fitting port. The shape and size of the lance 44 may be any shape as long as it can be fixed to the housing 12, and is appropriately designed in consideration of holding force, connector miniaturization, strength, workability, and the like.

  As an application example of the present invention, it is used for a connector used in an electric device or an electronic device such as a digital video camera or a portable music device, and particularly for soldering to a contact arranged in a range of 0.4 to 0.6 mm. This relates to the connection structure.

DESCRIPTION OF SYMBOLS 10 Connector 12 Housing 14 1st contact 16 2nd contact 17 Shell 18 Insulator 19 Main body part 20 Fitting part 21 Protruding part 22 Connection piece 24 Stopper piece 26 Protruding wall 27 Recessed part 28 First contact part 30 1st fixing | fixed part 32 1st Connection part 34 Second contact part 36 Second fixing part 38 Second connection part 40 Main body 42 Insertion hole 44 Lance 60 Cable

Claims (5)

Contacts arranged at a pitch of 0.4 to 0.6 mm,
In a contact having a contact part that contacts a mating contact and a connection part to which a cable is soldered,
In the connection portion of the contact, provided with a connection piece to which the core of the cable protruding to one side in the arrangement direction is soldered,
A contact provided with a stopper piece in the same direction as the connection piece and perpendicular to the connection piece. A connector in which two types of contacts are alternately arranged in a row at a pitch of 0.4 to 0.6 mm, and two types of contacts having a contact portion that contacts a mating contact and a connection portion to which a cable is soldered A housing having first and second contacts arranged in a row and a fitting port in which the first and second contacts are arranged and held and a mating connector is inserted; and the connection portion of the first and second contacts is In connectors that are distributed up and down in the thickness direction,
A connection piece to which the core wire of the cable protruding to one side in the arrangement direction is soldered to the connection portion of the first and second contacts,
A connector, wherein a stopper piece is provided only in the second contact in the same direction as the connection piece and perpendicular to the connection piece. The connector according to claim 2, further comprising an insulator having a plurality of protruding walls protruding between the adjacent contacts integrally or separately with the housing on a side opposite to the fitting opening of the housing. The connector according to claim 3, wherein a height of the protruding wall is 0.2 to 0.4 mm. The connector according to claim 3 or 4, wherein a space for receiving the core wire of the cable is secured by the connecting piece, the stopper piece, and the protruding wall.

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