JPH065153U - Mating connector - Google Patents

Abstract

(57) [Summary] [Purpose] To precisely position the connector having a multi-core, thin contact and the mating connector, and to secure the contact timing deviation. [Structure] The connector 21 has a conductive male guide contact 31 on one surface, and the mating connector 22 is a female guide contact member 32 for contacting the male guide contact 31.
have. The female guide contact member 32 has a guide sleeve 33 that receives the male guide contact, and a female contact 34. The longest guide sleeve 58 of the male guide contact 31 is for loosely fitting the male guide contact 31 movably in the longitudinal direction of the one surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector for mating a mating connector such as a memory card with a connector for precise positioning and hot-plugging.

[0002]

[Prior art]

 In personal computers, word processors, peripheral devices such as printers, etc., memory cards such as RAM cards for expanding the internal memory and font cards for storing font information are widely used.

As shown in FIG. 8, the conventional insertion / removal connector has a receptacle-side connector 1 and a mating connector 2 such as a memory card fitted into the connector 1. The connector 1 includes an insulator 3 and a plurality of conductive contacts 5 such as pin contacts arranged on one surface 4 of the insulator 3. The mating connector 2 has a mating insulator 7 having a plurality of accommodating holes 6 for accommodating a plurality of conductive contacts (not shown) in a one-to-one correspondence. The mating insulator 7 is provided with a tapered guide portion 9 on the mating surface 7 facing the one surface 4 of the connector 1. The guide portion 9 communicates with the accommodation hole 6.

In the fitting process for fitting the mating connector 2 to the connector 1, the final fitting process is performed at the final stage of the process of inserting the contact 5 while guiding the contact 5 to the guide portion 9. Done. That is, the alignment for the final fitting is performed by the guide portion 9 and the tip 10 of the contact 5. Therefore, even if the contact 5 and the center of the accommodation hole 6 are displaced by d before fitting, the contact 5 is guided and fitted into the accommodation hole 6 by the guide of the tapered portion of the guide portion 9. I am doing it.

Further, electrically, in order to prevent damage to the circuit during hot-plugging and unplugging, the length of each contact 5 is changed so that the circuit is connected in the order of ground, power supply, and signal. It was That is, as shown in FIG. 9, when the mating contact 11 such as a socket contact built in the accommodation hole 6 of the mating insulator 7 is set to have the same size, the length of the contact 5 is changed and the ground, The contact timings of the contact 5 for the power supply and the signal and the contact 11 for the hand were shifted.

[0006]

[Problems to be solved by the device]

 By the way, as the number of cores increases as the functionality of the memory card increases, the size of the guide portion 9 cannot be made sufficient, as shown in FIG. That is, there is a problem that the collecting guide portion 9 cannot be sufficiently chamfered.

Further, recently, a mating connector (memory card) of this type has been widely used in palm-top type computers, electronic notebooks, and the like. In this case, it is inevitable that the mating connector will also be downsized.

Due to this demand for miniaturization, the contact diameter is also becoming smaller, and the length of the contact is inevitably shortened from the viewpoint of strength, and a sufficient step difference for shifting the contact timing is secured. I couldn't.

The present invention has been proposed in view of the above-described problems of the prior art, and even if the connector has a multi-core contact and a small diameter, it is possible to precisely position the connector and the mating connector. Another object of the present invention is to provide an insertion / removal connector that can secure the contact timing deviation.

[0010]

[Means for Solving the Problems]

 According to the present invention, a pair of the contact and the mating contact, which include a connector having a plurality of conductive contacts and a mating connector having a plurality of conductive mating contacts, are arranged in the longitudinal direction with respect to each other. In the mating / unmating connector, the connector has a conductive male guide contact extending in the same direction as the contact, and the mating connector has a female guide contact member fitted to the male guide contact. However, the male guide contact is set to be longer than the contact in the fitting direction, and the female guide contact member includes a guide sleeve for receiving the male guide contact in a one-to-one correspondence and the male sleeve in the guide sleeve. A conductive female that receives the guide contact and contacts the male guide contact Insertion connector which is characterized in that it has a Ntakuto is obtained, et al.

Further, according to the present invention, the male side guide contact has at least two types of male guide contacts having different length dimensions in the fitting direction, and has the longest dimension among the male guide contacts. The guide sleeve for receiving the male guide contact can be an insertion / removal connector in which the male guide contact is loosely fitted so as to be movable in the longitudinal direction.

[0012]

[Action]

 According to the mating / unmating connector of the present invention, the connector and the mating connector are roughly positioned in the mating direction, and the mating of the guide sleeve and the male guide contact is started before mating of the contact is completed. Positioning. The mating of the contacts will begin after the complete positioning.

[0013]

【Example】

 1 and 2 show a first embodiment of the insertion / removal connector of the present invention. Referring to FIG. 1, the insertion / removal connector has a connector 21 and a mating connector 22 such as a memory card fitted into the connector 21. The connector 21 has an insulator 25 in which a large slot 24 is formed in the main surface 23. The insulator 25 is on the side of the receptacle fixed to a device or the like. The mating connector 22 on the plug side is fitted into the slot 24. A plurality of conductive contacts 28 are planted on the bottom surface 27, which is one surface of the slot 24, and the contacts 28 are aligned in the longitudinal direction on the bottom surface 27. The mating connector 22 has a plurality of conductive mating contacts 30 such as socket contacts arranged on the mating surface 29 facing the bottom surface 27 of the connector 21 in the fitting direction. These mating contacts 30 are arranged inside the mating connector 26. The contacts 28 and the mating contacts 30 are in one-to-one contact with each other.

Further, a conductive male guide contact 31 extending in the same direction as the contact 28 is provided on the bottom surface 27 of the connector 21. The male guide contact 31 is made longer than the contact 28 in the fitting direction. As shown in FIGS. 2 and 3, the mating connector 22 is provided with a female guide contact member 32 that guides the male guide contact 31 and contacts the male guide contact 31 after fitting. The female guide contact member 32 has a guide sleeve 33 that receives the male guide contacts 31 in a one-to-one correspondence, and a female contact 34 that receives the male guide contacts 31 in the guide sleeve 33 and contacts the male guide contact 31. Further, an insertion port 35 at the tip of the guide sleeve 33 is located on the mating surface 29 of the mating connector 22. As shown in FIG. 4, the guide sleeve 33 is formed with a tapered guide portion 36 that narrows from the insertion port 35 to the inner portion.

The female contact 34 includes a holding portion 37, first and second holding plates 39 and 40 that are bent at right angles from a bottom plate 38 of the holding portion 37 and face each other, and a first holding portion. It has a contact spring piece 41 extending from one end side of the plate 39 to one side, and a connection piece 42 extending in the same direction as the contact spring piece 41 from one end side of the second holding plate 40. At the tip of the contact spring piece 41, a contact portion 43 is formed that is curved and bent in a direction facing the connection piece 42. At the tip of the connecting piece 42, a barrel portion 46 is formed which is engaged with a circumferential groove 45 formed on the outer circumference of the guide sleeve 33 so as to be wound around. On the other end side of the second holding plate 40, a mating terminal portion 47 such as a board connecting SMT terminal extending on the side opposite to the barrel portion 46 is formed. As shown in FIG. 4, the mating terminal portion 47 is connected to a predetermined contact of the circuit board 50 built in the mating connector 22. Further, the guide sleeve 33 is formed with a notch portion 51 for exposing the contact portion 43 of the female contact 34 to the inside of the guide sleeve 33. A terminal portion 52 is formed on the other end of the contact 31. The terminal portion 52 extends outside the insulator 25 and is connected to a board (not shown) such as a device.

Next, a procedure for joining the guide sleeve 33 to the female contact 34 will be described.

First, in the state shown in FIG. 2, after the barrel portion 46 of the female contact 34 is positioned in the circumferential groove 45 of the guide sleeve 33, the barrel portion 46 is caulked as shown in FIG. By doing so, the barrel portion 46 is fixed in a state of being housed in the circumferential groove 45. At this time, the contact portion 43 of the female contact 34 is exposed on the inner wall surface of the guide sleeve 33 through the notch portion 51 of the guide sleeve 33, so that the male guide contact 31 can be conductively contacted when the male contact 34 is fitted.

As shown in FIG. 4, the mating connector 21 has a mating insulator 55 in which the mating surface 29 is provided with the insertion port 35 of the guide sleeve 32. A receiving hole 56 for receiving the female contact 34 and the guide sleeve 33 is formed in the mating insulator 55. As described above, in the female contact member 32 accommodated in the accommodating hole 56, the mating terminal portion 47 is connected to a predetermined contact of the circuit board 50, as described above.

According to this insertion / removal connector, both side surfaces of the mating connector 22 and the slot 24 surface of the connector 21 are guided to perform rough positioning. Further, before the fitting with the contact 28 is started, the male guide contact 31 is fitted while being guided by the guide sleeve 33 of the female guide contact member 32, and the mating connector 22 is inserted into the connector 21. In step, final positioning is performed by the guide sleeve 32. After that, precise positioning is performed between the mating connector 22 and the connector 21. After the positioning is completed completely, the contact 28 and the mating contact 30 start to be fitted to each other to make sure contact, and the male guide contact 31 and the female contact 34 are electrically contacted.

5 to 7 show a second embodiment of the insertion / removal connector. The illustrated insertion / extraction connector has at least two types of first and second male guide contacts 31 and 57 having different length dimensions in the fitting direction. The first and second male guide contacts 31, 57 are planted on both sides of the contact 28 arranged in the slot 24 of the insulator 21. The mating connector 22 has first and second guide sleeves 33 and 56 for receiving the male guide contacts 31 and 57 one-to-one. Here, the first male guide contact 31 and the first female guide contact member 32 are the same as those described in the first embodiment. The female contact 34 of the second female guide contact member 32 is similar to that of the first embodiment. The second male guide contact 57 fits and contacts the second guide sleeve 58. The second male guide contact 58 has a longer dimension than the first male guide contact 31. The difference in the length dimension of the first and second male guide contacts 31 and 57 is to obtain the time difference of connection at the time of fitting.

Each of the first and second guide sleeves 33 and 58 is located on both sides of the mating contact 30. The shape of the first guide sleeve 33 is similar to that shown in FIG. 1 described above. Further, the second guide sleeve 33 has a circular outer peripheral cross section of the insertion port 35, but has an inner circular cross section that is elongated in the longitudinal direction of the mating connector 22 (see FIG. 6). The second guide sleeve 58 also has a tapered insertion port 35, but has an oblong shape on the inner side in the arrangement direction of the mating connector 22, that is, in the longitudinal direction which is the width direction of the mating connector 22. Therefore, it does not have a guide function in the longitudinal direction of the mating connector. That is, the male guide contact 31 of the mating connector 22 is guided by the first and second guide sleeves 33 and 58 in the plate thickness direction of the mating connector, and the first guide sleeve 33 is arranged in the arrangement direction of the mating connector 22. Only regulate by guide.

Next, a state in which the mating connector 22 is fitted to the connector 21 will be described.

As shown in FIG. 5, the mating surface 29 of the mating connector 22 is inserted into the slot 24 of the insulator 25. Further, when the mating connector 22 is pushed in, the second male guide contact 57 is guided by the second guide sleeve 58, and the contact portion 43 exposed from the notch portion 51 formed in the second guide sleeve 58. Conductive contact with. In this case, as shown in FIG. 7, since the male guide contacts 31 and 57 have different lengths, when the mating connector 22 is fitted, the longer second male guide contact is used. 57 is guided by the guide portion 36 of the insertion opening 35 of the corresponding second guide sleeve 58 to enter the corresponding second guide sleeve 57, and is brought into conductive contact with the contact portion 43 of the female contact 34. After that, the shorter first male guide contact 31 enters into the corresponding first guide sleeve 33 and conducts to the contact portion 43 of the female contact 34 connected to the first guide sleeve 33. Contact.

For example, the second male guide contact 57 may be connected to the ground, and the first male guide contact 32 may be connected to the power source. In this case, the length dimension of the second male guide contact 57 is set longer than the length dimension of the first male guide contact 31.

In the first and second embodiments described above, the barrel portion 46 of the female contact 34 is engaged and attached to the outer circumferences of the first and second guide sleeves 33 and 58. The invention is not limited to this, and the fixing and holding of the female guide contact member 32 may be fixed by being sandwiched between the first and second guide sleeves 1 and the mating insulator 55. Good. In this case, it is preferable to form a groove in the mating insulator 55 instead of the circumferential groove 45.

[0026]

[Effect of device]

 As described above with reference to the embodiments, according to the insertion / removal connector of the present invention, by using the guide sleeves of the male guide contact and the female guide contact member, the contact has a multi-core and a small diameter. Even in the mating connector having the number of cores, precise positioning can be performed between the connector and the mating connector.

Further, since a plurality of male guide contacts having different lengths are used as the male guide contacts and at least one of the guide sleeves is formed in an oval shape, it is rough even in a mating connector with an extremely large number of cores for a memory card. After alignment, it is possible to perform precise alignment and staggered connection for insertion and removal of live wires (contacts).

[Brief description of drawings]

FIG. 1 is a perspective view showing the external appearance of a first embodiment of an insertion / removal connector of the present invention.

FIG. 2 is an exploded perspective view of a female guide contact member used in the insertion / removal connector of FIG.

FIG. 3 is a perspective view showing a state in which the female guide contact member of FIG. 2 is connected.

FIG. 4 is a cross-sectional view showing a state in the middle of fitting when the connector of FIG. 1 and a mating connector are fitted together.

FIG. 5 is a front view of a mating connector according to a second embodiment of the insertion / removal connector of the present invention.

6 is a front view of a second guide sleeve of the mating connector of FIG.

FIG. 7 is a plan view of a connector that fits into the mating connector of FIG.

FIG. 8 is a plan sectional view of a conventional insertion / removal connector.

FIG. 9 is a plan sectional view showing another example of a conventional insertion / removal connector.

FIG. 10 is a plan cross-sectional view showing another example of a conventional insertion / removal connector, showing a state in which the contacts have multiple cores.

[Explanation of symbols]

 1,21 Connector 2,22 Mating Connector 3,25 Insulator 4 One Side 5,28 Contact 6,56 Housing Hole 7,55 Mating Insulator 8,29 Mating Surface 9,36 Guide Part 11,30 Mating Contact 31 Male Guide Contact 32 Female Guide contact member 33 Guide sleeve (first guide sleeve) 34 Female contact 35 Insertion port 57 Second male contact 58 Second guide sleeve

Claims (2)

[Scope of utility model registration request] 1. A one-to-one correspondence between the contact and the mating contact, which includes a connector having a plurality of conductive contacts and a mating connector having a plurality of conductive mating contacts and are arranged in the longitudinal direction. The connector has a conductive male guide contact extending in the same direction as the contact, and the mating connector has a female guide contact member fitted to the male guide contact. The male guide contact is set to a dimension longer than the contact in the fitting direction, and the female guide contact member includes a guide sleeve for receiving the male guide contact in a one-to-one correspondence, and the male guide contact on the guide sleeve. Conductive female contact for receiving the male guide contact An insertion / removal connector having: 2. The male guide contact includes at least two types of male guide contacts having different length dimensions in the fitting direction, and receives the longest male guide contact of the male guide contacts. 2. The insertion / removal connector according to claim 1, wherein the guide sleeve loosely fits the male guide contact movably in the longitudinal direction.