JP2002352908A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector 10, 40, having a structure with which the connectors 10, 40 can be made to float and a contact connecting part 22 can be positioned using a simple structure, without increasing the number of parts. SOLUTION: In the connector 10, 40 composed of contacts 14, 44 composed of a contact part 32 to contact with the counter contact, a fixed part 34 fixed to blocks 12, 42, and a connecting part 22 connected with a substrate, and composed of the blocks 12, 42 where the prescribed number of the contacts 14, 44 are retained/fixed, by installing elastic parts 20, 50 between the fixed part 34 and the connecting part 22 of the contacts 14, 44, and by loading the housings 16, 46 of nearly box shapes having the outer size and clearance of the blocks 12, 42 to the connecting side of the contacts 14, 44, positioning of the contact connecting part 22 to the substrate and the floating of the connectors 10, 40 are made possible. It is preferred that the elastic parts 20, 50 of the contacts 14, 44 be made to meander at least once or more so as to facilitate the floating.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for use in electric equipment (electronic equipment), automobiles, and the like, and more particularly, to a floating structure for fitting with a mating connector and a positioning structure for a board. is there.

[0002]

2. Description of the Related Art The structure of a conventional connector will be described. FIG. 10 is a perspective view of a conventional connector 80. The conventional connector 80 includes a required number of contacts 84, a block 82 for holding and fixing the contacts, and a locator 86 for positioning the connection portion 22 of the contacts 84 to a substrate. The contact 84 includes a contact portion that contacts the contact of the mating connector, a fixed portion that is held and fixed to the block, and a connection portion that is mounted on the board.

[0003]

In a connector mounted on a board as described above, once mounted on the board, the contact connection portion is soldered to the board, so that the position accuracy of the board depends on the position accuracy of the board. The positional accuracy of the connector will also be determined. Even if one is a board mounted connector, if the other is a cable connector, there is no problem because the cable connector has more freedom,
Since the positional accuracy between the boards is not relatively required between the connectors connecting the boards, there is a problem to be solved such that the connectors mounted on the boards cannot be fitted depending on the positional accuracy of the boards.

In the case where the number of contacts is relatively large and the connector is narrow, the contact connecting portions may be in a plurality of rows and the length of the contact connecting portions is long. The locator, which is a positioning member, is indispensable. However,
In order to solve the above-mentioned problems, it is necessary to attach some other component to the connector to make the connector floatable, and if a locator becomes indispensable, the number of components will increase and the cost will increase. Also occurs. Therefore, the locator and the components of the floating structure means were considered to be integrated, but the shape of the contact connection part, especially in the case of the L-type dip type, was unnecessarily complicated in terms of structure. It was quite difficult.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a connector having a structure in which a connector can be floated and a contact connection portion can be positioned with a simple structure without increasing the number of parts.

[0006]

SUMMARY OF THE INVENTION The object of the present invention is to provide a contact comprising a contact portion for contacting a mating contact, a fixed portion fixed to a block, and a connection portion connected to a substrate. In a connector including a fixed block, an elastic portion is provided between a fixed portion and a connection portion of the contact, and a substantially box-shaped housing having an outer dimension and a clearance of the block is mounted on a connection side of the contact. This can be achieved by enabling the positioning of the contact connection portion to the substrate and the floating of the connector.

The elastic portion of the contact is meandered at least once so as to facilitate floating. This is because the contact has a spring property so that the contact can be displaced in the X, Y, and Z directions by meandering. Further, a cross-shaped positioning portion is provided between the elastic portion and the connection portion of the contact. By providing the cross-shaped positioning portion in this manner, insertion into the housing and positioning can be easily performed. In order to facilitate the insertion of the contacts, the housing is provided with a required number of insertion grooves for inserting the contacts on the board connection surface side, and a plate-like member is arranged between the insertion grooves. A protruding portion is provided on one side of the member, and a guide surface is provided on the other side.
And an inclined portion provided substantially at right angles to the inclined surface A. When mounting the contact on the housing, first, the tip of the cross-shaped positioning portion of the contact is inserted along the guide surface, and then the tip is oriented along the inclined portion and the inclined surface A in the direction of the protrusion. When the tip further moves in the direction of the protrusion along the inclined surface B, the cross-shaped positioning part of the contact falls on the protrusion and the mounting part, so that the contact is mounted. I made it.

[0008]

When the contact is mounted on the housing, first, when the tip of the cross-shaped positioning portion of the contact is inserted along the guide surface, the tip contacts the inclined portion, and the tip contacts the inclined portion. The ascending portion moves toward the protruding portion by the inclined surface A while climbing the inclined portion, and when the climbing of the inclined portion is completed, the tip further moves toward the protruding portion by the inclined surface B, and the cross-shaped positioning portion of the contact is projected. Fall on the part and the mounting part.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A connector according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a straight dip type connector according to an embodiment of the present invention, FIG. 2 is a perspective view of a contact used in FIG. 1, and FIG.
FIG. 4 is a perspective view of a housing used for the present invention. FIG. 4 is a perspective view of an L-shaped dip type connector according to another embodiment of the present invention, FIG. 5 is a perspective view showing a state in which the contact is mounted on a block, and FIG. 6 is a view of the contact used in FIG. FIG. 7 is a perspective view of a housing used in FIG. 4, FIG. 8 is a perspective view of FIG. 7 cut along an insertion groove portion, and FIG. 9 is a block diagram of the housing of FIG. FIG. 9 is an explanatory diagram for explaining the movement of a contact when the contact is mounted on the device. The connector of the present invention mainly includes a block, a contact, and a housing.

First, a straight dip type connector 10 according to an embodiment will be described with reference to FIGS. First, the contact 14, which is a point of the present invention, will be described. The contact 14 is made of metal, and is manufactured by a known press working. As a material of the contact, a spring property is required, and examples thereof include brass, beryllium copper, phosphor bronze, and the like. Further, as shown in FIG. 2, the contact includes a contact portion 32 that contacts the contact of the mating connector, a fixing portion 34 fixed to the block 12, an elastic portion 20 having spring properties, and a connection portion 22 mounted on a board. Consists of The elastic portion 20 of the contact 14
Should be meandered at least once or more so as to easily float. X and Y by meandering as shown in FIG.
・ It can be moved in the Z direction. The shape of the elastic portion may be any shape as long as the connector 10 can float. The contact 14 is held and fixed to the block 12 by press fitting or the like.

Next, the block 12 will be described. This block is an electrically insulating plastic, is manufactured by injection molding of a known technique, and is appropriately selected in consideration of dimensional stability, workability, cost, and the like.
Generally, polybutylene terephthalate (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LC
P), polycarbonate (PC) and synthetic materials thereof. The block 12 is provided with a required number of holding holes (not shown) into which the contacts 14 are inserted. On the opposite side, a required number of contacts into which a contact of a mating connector (not shown) is fitted. A fitting port 18 is provided. Locks 26 are provided on both sides of the block 12 in the width direction to be mounted on the housing 16.

Finally, the housing 16 will be described. This housing is made of an electrically insulating plastic and is manufactured by injection molding of a known technique. The material is appropriately selected in consideration of dimensional stability, workability, cost, and the like. Generally, polybutylene terephthalate (polybutylene terephthalate) is used. P
BT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), and synthetic materials thereof. The housing 16
Has a substantially box-like shape as shown in FIG. 3, and has two major roles in that the positioning of the contact connection portion 22 on the substrate and the floating when the connectors are fitted to each other are enabled. is there. On the board mounting side of the housing 16, there are provided insertion holes 36 for the number of the contacts 14, and the contact connection portions 22 are positioned by the insertion holes 36, and there is little clearance between the contacts 14 and the insertion holes 36. It has become. Locking portions 28 are provided on both sides in the width direction at positions corresponding to the locks 26 of the block 12.
The required number of positioning pins 30 are provided integrally with the housing 16 so as to protrude in the board mounting direction in order to position the entire connector on the board. In some cases, the positioning pin 30 may be fixed to another component by press fitting or the like. The inside dimensions of the housing 16 are:
By making it larger than the external dimensions of the block 12 and providing a clearance, the connector 10 is made to be a structure that can be floated, and the clearance is appropriately designed according to customer specifications, manufacturing accuracy of the board, and the like. That is, the floating structure means that the contact 14 is inserted into the insertion hole 3 of the housing 16.
6 and the housing 16
Only the clearance between the inner dimension of the contact and the outer dimension of the block 12 is made displaceable by the elasticity of the elastic portion 20 of the contact 14. The housing 16 is provided with a plurality of slits 29 so that the block 12 can be easily mounted on the housing 16.

Second, an L-type dip type connector 40 as another embodiment will be described with reference to FIGS. However, the description of the same parts as those of the straight-dip type connector 10 described above will be omitted, and only different points will be described. First, the contact 44, which is a point of the present invention, will be described. The material and the like are the same as those described above. The contact 44
Unlike FIG. 2, as shown in FIG. 6, a positioning portion 52 is provided between the elastic portion 50 having a spring property and the connection portion 22 mounted on the board. The positioning portion 52 has a substantially cross shape,
Its role is to prevent the contact 44 from coming off (positioning in the Z direction) toward the substrate when the contact 44 is mounted on the housing 46, and also to function as a guide when mounting. For mounting method,
A description will be given after the housing 46 is described. Positioning part 5
The size and position of the housing 4 depend on the positional relationship with the substrate and the housing 4.
6 is appropriately designed in consideration of the size of the insertion hole 36 and the like.

Next, in block 42, block 4
2 are all the same as the block 12 in FIG.

Next, the housing 46 will be described.
The material and the like of the housing are the same as those in FIG. 2 described above, and the shapes and roles are also the same. In order to achieve a floating structure, which is one of the roles, the housing 4 is used.
Similarly, the inner dimensions of the connector 6 are made larger than the outer dimensions of the block 42 to provide a clearance so that the connector 40 can float. The configuration is slightly different due to the different role of the positioning means of the contact connection part 22, which is another role.

Since the contacts 42 are L-shaped dip type, insertion grooves 54 are provided on the substrate mounting side as many as the number of contacts as shown in FIG.
Are separated by As shown in FIG. 8, a flat guide surface 60 is provided on one side of the plate member 56, and a projection 68 is provided on the other side. Further, an inclined surface A62 and an inclined surface B64 are provided in this order so as to be connected to the guide surface 60, and an inclined portion 66 is provided substantially perpendicular to the inclined surface A62. A mounting portion 70 is provided at a portion substantially perpendicular to the inclined portion 66 at the same height (same plane) as the projection 68, and a contact is provided between the mounting portion 70 and the projection 68. 44 insertion holes 36 are provided. The size of the insertion hole 36 is the same as that of the connector shown in FIG. That is, the mounting portion 7
The positioning portion 52 of the contact 44 is placed on the projection 0 and the projection 68, and the contact 44 enters the insertion hole 36, whereby the contact connection portion 22 is positioned. Arm portions 24 are provided on both sides of the housing 46 in the width direction.
A locking portion 28 is provided on the arm portion 24 at a position corresponding to the engaging portion 49 of the lock 26 of the block 42. The arm portion 24 has a spring property so that the block 42 in the state of FIG. 5 can be easily mounted. A slit 29 is provided on the inner side so that the arm portion 24 becomes independent so as to have a spring property. In addition, a backup portion 48 is provided on the side of the locking portion 28 in the contact insertion direction so that the lock 26 does not move in the y direction. This is because the y direction does not need to be floating because of the fitting direction of the connector 40.

The contact 44 is guided to the insertion hole 36 and held by the guide surface 60, the inclined surface A62, the inclined surface B64, and the inclined portion 66 described above. Finally,
A method for mounting the contact 44 will be described. First, the tip of the cross-shaped positioning portion 52 of the contact 44 is inserted along the guide surface 60. Next, the tip comes into contact with the inclined portion 66, and further along the inclined surface A62, the protrusion 68
Move in the direction. Further, the tip moves toward the protrusion 68 along the inclined surface B64. Then, the cross-shaped positioning portion 52 of the contact 44 falls on the protrusion 68 and the mounting portion 70, and the contact 44 is mounted.

[0018]

As is clear from the above description, according to the connector of the present invention, the following excellent effects can be obtained. (1) According to the connectors 10 and 40 of the present invention, since the elastic portions 20 and 50 are provided on the contacts 14 and 44, only the clearance between the outer dimensions of the blocks 12 and 42 and the inner dimensions of the housings 16 and 46 is reduced. Floating is possible, so that even if there is some displacement between the substrates, they can be fitted. (2) The elasticity of the elastic portions 20 and 50 of the contacts 14 and 44 can be displaced by the spring property only by meandering at least once or more, so that the structure can be easily floated. (3) Since only the housings 16 and 46 can be used for the floating and positioning structure with respect to the substrate, the cost does not increase. (4) In the L-type dip type contact 44, since the positioning part 52 is provided between the elastic part 50 and the connection part 22, the mounting of the contact 44 to the housing 46 is easy, and the contact 44 is mounted in the board mounting direction. It can be easily held so that it does not move. (5) As a method of mounting the contact 44 on the housing 46, first, the tip of the cross-shaped positioning portion 52 of the contact 44 is inserted along the guide surface 60, and then the tip is Contact and further inclined surface A6
When the tip moves in the direction of the projection 68 along the inclined surface B2, and further moves in the direction of the projection 68 along the inclined surface B64, the cross-shaped positioning portion 52 of the contact 44 is brought into contact with the projection 68 and the mounting portion 70. L
The dip type contact 44 can be easily mounted.

[Brief description of the drawings]

FIG. 1 is a perspective view of a straight dip type connector according to an embodiment of the present invention.

FIG. 2 is a perspective view of a contact used in FIG.

FIG. 3 is a perspective view of a housing used in FIG. 1;

FIG. 4 is a perspective view of an L-shaped dip type connector according to another embodiment of the present invention.

FIG. 5 is a perspective view showing a state where a contact is mounted on a block.

6 is a perspective view of a contact used in FIG.

FIG. 7 is a perspective view of a housing used in FIG.

FIG. 8 is a perspective view of a state where FIG. 7 is cut at an insertion groove portion.

FIG. 9 is an explanatory diagram illustrating movement of a contact when the block in the state of FIG. 5 is mounted on a housing.

FIG. 10 is a perspective view of a conventional connector.

[Explanation of symbols]

 10, 40, 80 Connector 12, 42, 82 Block 14, 44, 84 Contact 16, 46 Housing 18 Fitting port 20, 50 Elastic part 22 Connecting part 24 Arm part 26 Lock 28 Locking part 29 Slit 30 Positioning pin 32 Contact part 34 fixing part 36 insertion hole 48 backup part 49 engaging part 52 positioning part 54 insertion groove 56 plate member 60 guide surface 62 inclined surface A 64 inclined surface B 66 inclined part 68 projecting part 70 mounting part 86 locator

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference)

Claims (5)

[Claims] 1. A connector mounted on a board, comprising: a contact comprising a contact portion in contact with a mating contact; a fixed portion fixed to a block; and a connection portion connected to the board; In a connector comprising a block to be held and fixed, an elastic portion is provided between a fixing portion and a connection portion of the contact,
A connector, wherein a substantially box-shaped housing having an outer dimension and a clearance of the block is mounted on a connection side of the contact, thereby enabling positioning of a contact connection portion to a substrate and floating of the connector. 2. The connector according to claim 1, wherein the elastic portion of the contact is meandered at least once. 3. The connector according to claim 2, wherein a cross-shaped positioning portion is provided between the elastic portion and the connection portion of the contact. 4. The housing is provided with a required number of insertion grooves into which the contacts are inserted on the board connection surface side, and a plate-like member is arranged between the insertion grooves, and one side of the plate-like member is provided. And a guide surface is provided on the other side, and an inclined surface A and an inclined surface B are provided so as to be connected to the guide surface, and an inclined portion which is provided substantially at right angles to the inclined surface A is provided. The connector according to claim 3, wherein: 5. When mounting the contact on the housing, first, the tip of the cross-shaped positioning portion of the contact is inserted along the guide surface, and then the tip is inserted into the inclined portion and the inclined surface A. When the tip moves in the direction of the protrusion along the inclined surface B, the cross-shaped positioning portion of the contact falls on the protrusion and the mounting portion. The connector according to claim 4, wherein a contact is mounted.