JPH075277U - LIF connector - Google Patents

Abstract

(57) [Summary] [Purpose] Only one operation is required, and the operating force is small. [Structure] When the fitting protrusion 13 of the mating connector 1 is received in the engaging portion 230 of the first member 23 and the second member 25 is pushed toward the connector body 21, the first member 23 is fitted. It moves in a direction perpendicular to the joint axis A and guides the fitting protrusion 13 to the inner side of the horizontal portion 233 of the engaging portion 230. At the same time, the mating connector 1 and the connector 2 relatively approach each other and are connected to each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a LIF (Low Insertion Force) connector used for fitting / uncoupling a mating connector and a connector by a one-touch operation with a small operating force.

[0002]

[Prior art]

 The conventional connector has a problem that the number of contact cores increases and the fitting operation force at the time of fitting / connecting increases. To solve this problem, there is a connector as shown in FIG. This connector has a connector 8 and a mating connector 9 which are fitted and connected by relative movement. The operability of the connector 8 and the mating connector 9 is improved by reducing the operation force at the time of mating / unmating. When the connector 8 and the mating connector 9 are fitted together, the conductive contact held by the connector 8 and the conductive mating contact held by the partner connector 9 are connected. . A large number of contacts and mating contacts are arranged in high density in each of the connector 8 and the mating connector 9.

A lever 81 is rotatably provided on a pair of outer surfaces of the connector 8. The lever 81 has a half-moon shaped slit 83 formed therein. A protrusion 91 provided so as to project from the outer surface of the mating connector 9 is engaged in the slit 83, and the lever 81 is rotated in the arrow direction B. Then, the connector 8 and the mating connector 9 relatively come close to each other, and the two are finally fitted and connected.

[0004]

[Problems to be solved by the device]

 However, in the connector shown in FIG. 5, it is necessary to align the protrusions 91 of the mating connector 9 with the slits 83 of the lever 81. After that, the lever 81 is turned to rotate the connector 8 and the connector 8. The operation of fitting and connecting the mating connector 9 was required, and the operation at the time of connection was troublesome.

Therefore, an object of the present invention is to provide a LIF connector which requires only one operation, that is, a one-touch type, and which requires a small operation force.

[0006]

[Means for Solving the Problems]

 According to the present invention, a mating connector having a conductive mating contact and a connector having a conductive contact are included, and the mating contact and the connector are moved by moving the mating connector and the connector in a fitting direction. In a LIF connector for connecting a contact, the connector includes a connector main body holding the contact, a first member facing an outer wall surface of the connector main body, the connector main body and a periphery of the first member. A second member that covers the connector body and moves in the fitting direction together with the connector body, and the connector body and the first member move the connector body in the fitting direction. A first connecting member and a second connecting member, wherein the first member and the second member are connected to the mating connector when the first member moves. A second engaging device for moving the body in the fitting direction is provided, and the second member is fitted to the mating connector main body by the guide between the connector main body and the second member. Only in the mating direction, the mating connector and the first member prevent the connector body and the mating connector from coming off when the connector body is fitted to the mating connector. A LIF connector is obtained which is characterized in that it has a device.

Further, according to the present invention, the first engaging device includes a plurality of first side walls provided on one of the side walls of the connector body and the first member facing each other. And a plurality of first protrusions provided on the other side wall and engaged with the first hole in a one-to-one relationship, and the second engagement device includes the first member and the first member. A plurality of second holes provided in one of the opposite side walls of the second member, and a plurality of second holes provided in the other side wall and engaging with the second holes in a one-to-one correspondence LIF connector having a second protrusion of

Further, according to the present invention, the mating connector has a mating connector body holding the mating contact, and the connector body has a receiving groove for receiving the mating connector body in the mating direction. And a notch formed by notching an upper edge of a pair of side walls of the receiving groove, wherein the retaining device includes a fitting protrusion protruding from a pair of outer walls of the mating connector body. An engaging portion that is opened at a position that fits into the cutout portion of the connector body, and the engaging portion is horizontal from a vertical portion that engages with the fitting protrusion and a lower end of the vertical portion. A LIF connector is obtained with horizontal holes extending in the direction.

[0009]

[Action]

 According to the present invention having the above-described configuration, when the connector and the mating connector are fitted and connected, the fitting protrusion is fitted to the vertical portion of the first engaging portion of the first member that matches the cutout portion. In addition, by pressing the connector, the first protrusion descends through the first hole, and the second protrusion descends through the second hole. Also, the mating protrusion of the mating connector is guided to the terminal end side of the horizontal portion of the first engaging portion, at which time the first protrusion moves to the lower end of the first hole and the second protrusion moves to the second end. The second member is moved to the lower end of the second hole, and the connection between the connector and the mating connector is completed.

The height dimension of the second hole formed in the second member is set larger than the height dimension of the first hole formed in the mating connector body.

Further, when the connector and the mating connector are connected to each other, when the second member is pushed so as to approach the main body, the second member moves a large amount in the fitting direction with respect to the connector main body and the first member. As a result, the first member, the connector body, and the second member relatively move in opposite directions by a limited small amount of movement, and the mating protrusions of the mating connector are engaged. It moves in the direction orthogonal to the mating direction and is guided to the inner part of the horizontal part of the engaging part of the first member to be in the locked state, and the connector and the mating connector relatively move with a small force. To be connected to each other.

[0012]

【Example】

 Next, each embodiment of the LIF connector of the present invention will be described with reference to the drawings. 1 and 2 (a) show a first embodiment of the LIF connector of the present invention.

With reference to FIGS. 1 and 2A, the LIF connector has a mating connector 1 and a connector 2 that is fitted and connected to the mating connector 1.

The mating connector 1 has a mating connector body 1a. The mating connector body 1a has a rectangular parallelepiped receiving portion 10 that is received in a receiving groove 200 formed in the connector body 21 of the connector 2 described later. The receiving portion 10 is provided with a fitting projection 13 projecting from the side surface at the central portion of the pair of side surfaces in the longitudinal direction and in the vicinity of the lower end. A conductive contact (not shown) is inside the receiving portion 10 and is held by the mating connector body 1a.

The connector 2 includes a connector main body 21, a plate-shaped first member 23 provided so as to face a pair of outer wall surfaces in the longitudinal direction of the connector main body 21, the connector main body 21, and the first member. The second member 25 has a cylindrical shape and covers the periphery of the outer side surface of 23.

A notch 211 having an opening at the upper edge is formed at the center of a pair of side faces in the longitudinal direction of the connector body 21. Further, on the pair of side faces in the longitudinal direction of the connector main body 21, there are formed six first inclined holes 213a, 213b, 213c elongated in the longitudinal direction, three in total on one side face. The first protrusion 235b of the first member 23 is provided inside the first inclined hole 213b in the center of the first inclined holes 213a, 213b, and 213c, and both ends of the first inclined hole 213b. A spring stopper 215 is provided for locking to either.

The first member 23 faces the pair of outer wall surfaces of the connector body 21, and is formed in a flat plate shape so as to be movable along the inner wall surface of the second member 25 in the longitudinal direction. An L-shaped groove-shaped engaging portion 230 is formed at the center of the upper edge of the first member 23. The engaging portion 230 has a vertical portion 231 extending downward from the upper edge of the first member 23, and a horizontal portion 233 extending horizontally from the lower end of the vertical portion 231. The vertical portion 231 is formed at a position corresponding to the cutout portion 211 of the connector body 21. Here, the fitting protrusion 13 and the engaging portion 230 are collectively referred to as a retaining device.

Further, the first member 23 includes six sixth members, three on each of the pair of side walls in the longitudinal direction of the connector body 21, on the surface (inner side surface) facing the connector body 21. Six first protrusions 235a, 235b, 235c are provided which are engaged with the inclined holes 213a, 213b, 213c in a one-to-one manner. Here, the first inclined holes 213a, 213b, 213c and the first protrusions 235a, 235b, 235c are collectively referred to as a first engagement device.

Since the central first inclined hole 213b is provided with the spring stopper 215, the first protrusion 235b located at the center is located at the upper end side or the lower end side of the central first inclined hole 213b. Will be located.

In the state before the connector 1 and the mating connector 2 are connected, the first protrusions 235a, 235b, 235c are engaged with the upper ends of the first inclined holes 213a, 213b, 213c. In the connected state, the first protrusions 235a, 235b, 235c are located on the lower end side of the first inclined holes 213a, 213b, 213c.

Further, on the outer wall surfaces of the pair of first members 23, two second protrusions 237a and 237b projecting outward are provided on each of the plate surfaces in the vicinity of both side ends in the longitudinal direction. It is provided.

The second member 25 has two elongated second slanted holes 251a and 251b formed on a pair of side surfaces in the longitudinal direction. The inclination angle of the second inclined holes 251a and 251b is set to, for example, 60 degrees with respect to the longitudinal direction of the second member 25. Further, the length dimension of the second inclined holes 251a, 251b of the second member 25 is set so as to extend from the vicinity of the lower end to the vicinity of the upper end. Here, the second inclined holes 251a and 251b and the second protrusions 237a and 237b are collectively referred to as a second engaging device.

The second member 25 is formed by joining two constituent members 25a and 25b, which are divided by a virtual plane parallel to the longitudinal direction.

Next, the assembling of the connector 2 will be described. The first member 23 is connected to the first tilted holes 213a, 213b, 213c of the connector body 21 so that the first protrusions 235a, 235b, 235c of the first member 23 are engaged one-to-one. Align with the side surface of the main body 21. At this time, since the spring stopper 215 is provided in the inclined hole 213b at the center of the connector body 21 as described above, the first protrusion 235b positioned at the center is provided on the upper end side of the first inclined hole 213b. Can be left in place.

Next, the connector body 21 to which the first member 23 is attached is inserted into the second member 25. At this time, the second protrusions 237a and 237b provided on the first member 23 are fitted one-to-one into the second inclined holes 251a and 251b in a state where the second member 25 is separated into two cracks. Thus, the two constituent members 25a and 25b are joined together.

The connection operation between the mating connector 1 and the connector 2 will be described below. As shown in FIG. 2A, the fitting protrusion 13 of the mating connector 1 is inserted into the notch portion 211 formed in the connector body 21 of the connector 2. At this time, the receiving portion 10 of the mating connector main body 1a is slightly inserted into the receiving groove 200 of the connector main body 21.

Next, the second member 25 is gripped by hand and pushed along the fitting axis A toward the connector body 21 in the fitting direction. Then, as shown in FIG. 2B, the second protrusion 237 of the first member 23 relatively slides down the second inclined holes 251a and 251b of the second member 25. At this time, the first member 23 moves a little in the direction (left direction) perpendicular to the fitting axis A, and the fitting protrusion 13 of the mating connector 1 is inserted into the horizontal portion 233 of the engaging portion 230. As shown in FIG. 2 (c), the mating connector 1 and the connector body 21 of the connector 2 are prevented from being separated from each other.

Then, when the second member 25 is further pushed into the mating connector 1, as shown in FIG. 2D, the protrusions 235a, 235b, 235c of the first member 23 are inserted into the connector main body 21. The first inclined holes 213a, 213b, 213c are moved down to the final end. At this time, the protrusion 235b does not return easily unless a force in the opposite direction is applied more than necessary by the spring stopper 215 located inside the first inclined hole 213b, and the connector 2 and the mating connector 1 are connected. Is completed.

The second member 25 guides the connector body 21 and the second member 25 to each other (a pair of outer wall surfaces 217 of the connector body 21 and a pair of inner wall surfaces 255 of the second member 25). Thus, it moves only in the fitting direction with the mating connector body 1a.

Next, regarding the displacement of each member when the connector 2 and the mating connector 1 are connected, the first inclined holes 213a, 213b, 213c and the second inclined hole shown in FIG. 2A are shown. As can be easily understood from the length dimensions of 251a and 251b, the second member 25 rises with respect to the first member 23 by the dimension a along the fitting axis A, and the first member 23 Moves in the direction perpendicular to the second member 25 (or the connector body 21) by the dimension b. The horizontal movement of the first member 23 by the dimension b brings the connector body 21 closer to the mating connector 1 by the dimension c.

By the way, without considering the movement on the way, even if the second member 25 is moved by a large amount such as the dimension a, only a small dimension c is moved between the mating connector 1 and the connector main body 21. Assuming that there is no loss due to the above, a force of a / c times is generated, and it is possible to connect the connector 2 and the mating connector 1 with a small force.

To be precise, since the bb 'portions of the first inclined holes 213a, 213b, 213c of the connector body 21 are not related to the movement of the vertical axis, the force expansion efficiency is slightly lowered. Therefore, the magnification of the force when moving is (a / b) × (b ′ / c).

FIG. 3 shows a second embodiment of the present invention. The holes formed in the connector body 21 may be holes 218a, 218b, 218c extending in the horizontal direction instead of the inclined holes. . In this case, in the first member 23, the upper surface 233a of the horizontal portion 233 of the engaging portion 230 is inclined in the height dimension c.

The first protrusion and the second protrusion 235a, 235b, 235c, 237a, 237b and the first inclined hole and the second inclined hole 213a, 213b, 213c, 251a, 251b in the above description. With respect to the relationship with the above, the connector body 21, the first and second members 23, 25 side opposite to each other may be formed within the range where the same action is obtained.

FIG. 4 shows a third embodiment applied to a LIF connector having a round axial cross section, which is of a type in which the mating connector 1 and the connector 2 are circular and rotate relative to each other. May be. In the third embodiment, the same parts as those of the LIF connector shown in FIG. 1 will be described with the same reference numerals.

The LIF connector has a mating connector 1 and a connector 2 that is fitted and connected to the mating connector 1.

The mating connector 1 has a mating connector body 1a. The mating connector body 1 a has a round receiving portion 10 that is received in a receiving groove 200 formed in the connector body 21 of the connector 2. The receiving portion 10 is provided with a fitting projection 13 which is provided so as to project from the outer side wall thereof. A conductive contact (not shown) is inside the receiving portion 10 and is held by the mating connector body 1a.

The connector 2 covers the connector main body 21, a cylindrical first member 23 provided to face the outer wall surface of the connector main body 21, and the outer peripheral surfaces of the connector main body 21 and the first member 23. The second member 25 having a cylindrical shape is provided.

On the side wall of the connector main body 21, a notch portion 211 that opens to the upper edge is formed. In addition, a pair of vertical grooves 212 that are long in the direction of the fitting axis A are formed on the side surface of the connector body 21. Further, on the side surface of the connector body 21, a total of two first protrusions 235a, 235b are provided between the pair of vertical grooves 212a, 212b.

The first member 23 includes two elongated first slanted holes 213a and 213b, and one slanted second slanted second hole 213a and 213b. The inclined holes 251a and 251b are formed. Further, two L-shaped groove-shaped engaging portions 230 are formed on the upper edge portion of the first member 23. The engaging portion 230 has a vertical portion 231 extending downward from the upper edge of the first member 23, and a horizontal portion 233 extending horizontally from the lower end of the vertical portion 231. The vertical portion 231 is formed at a position corresponding to the cutout portion 211 of the connector body 21. Here, the fitting protrusion 13 and the engaging portion 230 are collectively referred to as a retaining device.

In addition, the first inclined holes 213a and 213b of the first member 23 and the first protrusions 235a and 235b that engage with the first inclined holes 213a and 213b in a one-to-one relationship are collectively referred to as a first engaging device.

In the state before the connector 2 and the mating connector 1 are connected, the first protrusions 235a and 235b are engaged with the upper ends of the first inclined holes 213a and 213b, and the connection state is maintained. At times, the first protrusions 235a and 235b are located on the lower end side of the first inclined holes 213a and 213b.

Further, the inner wall surface of the second member 25 is provided with two second protrusions 237 a and 237 b that project inward. The second protrusions 237a and 237b engage with the second inclined holes 251a and 251b and the vertical grooves 212a and 212b. Here, the second protrusions 237a and 237b, the second inclined holes 251a and 251b, and the vertical grooves 212a and 212b are collectively referred to as a second engagement device.

The inclination angles of the second inclined holes 251 a and 251 b are set to, for example, 60 degrees with respect to the fitting axis A of the first member 23. Further, the length dimension of the second inclined holes 251a and 251b of the first member 23 is set so as to extend from the vicinity of the lower end to the vicinity of the upper end.

In this LIF connector, the movement of the second member 25 along the fitting axis A is converted into the rotation of the first member 23. Further, the movement of the connector body 21 along the fitting axis A is also converted into the rotation of the first member 23.

The major difference between the third embodiment and the first and second embodiments is that it is limited only to the axial movement between the connector body 21 and the second member 25, that is, the mutual movement. In order to prevent the rotation of the second member 25, the second protrusions 237a and 237b formed on the second member 25 are formed on the connector body 21 through the second inclined holes 251a and 251b formed on the first member 23. It is necessary to reach the vertical grooves 212a and 212b. That is, the second member 25 is guided in the mutual direction between the connector body 21 and the second member 25 (the vertical grooves 212a and 212b and the second protrusions 237a and 237b) so that the second member 25 can be fitted in the mating connector body 1a. Only moves to.

[0047]

[Effect of device]

 As described above with reference to the embodiments, according to the present invention, the second member of the connector connected to the mating connector is guided in the mating connector body by the guide between the connector body and the second member. Since it is designed to move only, it is possible to completely fit and connect the connector and the mating connector with one operation and with a small force.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a LIF connector of the present invention.

2A and 2B are explanatory views showing an operating state of the first embodiment, wherein FIG. 2A is a sectional view showing an initial state of fitting the LIF connector, and FIG. Sectional drawing which shows, (c) is a sectional view which shows the state in the middle of fitting of a LIF connector, and (d) is sectional drawing which shows the state at the time of fitting and connection of a LIF connector.

FIG. 3 is an exploded perspective view showing a second embodiment of the LIF connector of the present invention.

FIG. 4 is an exploded perspective view showing a third embodiment of the LIF connector of the present invention.

FIG. 5 is a side view showing a main part of a conventional connector.

[Explanation of symbols]

 1,9 Mating connector 1a Mating connector main body 2,8 Connector 10 Receiving part 13 Fitting protrusion 21 Connector main body 23 First member 25 Second member 81 Lever 83 Slit 211 Notch 213a, 213b, 213c First Inclined hole 215 Spring stopper 200 Receiving groove 230 Engagement portion 235a, 235b, 235c First protrusion 237a, 237b Second protrusion 251a, 251b Second inclined hole

Claims (3)

[Scope of utility model registration request] 1. A mating connector having a conductive mating contact and a connector having a conductive contact, wherein the mating contact and the contact are moved by moving the mating connector and the connector in a fitting direction. In the LIF connector for connecting to the connector, the connector covers the connector main body holding the contact, the first member facing the outer wall surface of the connector main body, the connector main body and the periphery of the first member, A second member that moves in the fitting direction together with the connector body, wherein the connector body and the first member have a first engagement device that moves the connector body in the fitting direction. Then, the first member and the second member fit the connector body to the mating connector when the first member moves. A second engaging device that moves in a direction, the second member includes the connector body and the second member.
Of the mating connector body by the guide between the mating connector body and the other member, the mating connector and the first member, when fitting the connector body to the mating connector, An LIF connector comprising a retaining device for retaining the connector body and the mating connector from each other. 2. The first engagement device includes a plurality of first holes formed in one of the opposite side walls of the connector body and the first member, and the other of the plurality of first holes. A plurality of first protrusions that are provided on the side wall and that engage with the first holes in a one-to-one relationship, and the second engagement device is configured to include one of the first member and the second member. A plurality of second holes provided in any one of the side walls facing each other and a plurality of second protrusions provided in the other side wall and engaging with the second holes in a one-to-one relationship. Claim 1 having
The described LIF connector. 3. The mating connector has a mating connector body holding the mating contact, and the connector body comprises a receiving groove for receiving the mating connector body in the fitting direction, and the receiving groove. A pair of side walls of the side wall of the mating connector body, and a notch formed by notching an upper edge of the side wall. An engaging portion that is opened at a position matching the cutout portion, and the engaging portion has a vertical portion that engages with the fitting protrusion and a horizontal hole that extends horizontally from the lower end of the vertical portion. The LI according to claim 1.
F connector.