KR102177486B1 - Improved connector device for hold-down structure - Google Patents

Abstract

The present invention relates to a receptacle comprising a receptacle insulator, a receptacle contact assembled at a predetermined pitch in the receptacle insulator, and a receptacle hold-down installed at both ends of the receptacle insulator in a longitudinal direction; And a plug insulator having a body insertable into an upper receptacle insulator, a plug contact assembled to the plug insulator at a pitch corresponding to the receptacle contact, and a plug having plug holddowns installed at both ends of the plug insulator in a longitudinal direction. And, when the receptacle and the plug are fastened, the receptacle contact and the plug contact make a one-to-one contact, and the receptacle hold-down and the plug hold-down engage with each other, and the receptacle hold-down is configured to accommodate the plug hold-down. A connector device comprising: a support plate having a'c'-shaped body that can be used, and a clip unit that is integrated with the support plate and provided to correspond to each of the three surfaces of the'c'-shaped body, and is coupled to the receptacle insulator Start.

Description

Connector device with improved hold-down structure {IMPROVED CONNECTOR DEVICE FOR HOLD-DOWN STRUCTURE}

The present invention relates to a connector device, and more particularly, to a connector device having a structure in which a receptacle and a plug are respectively provided with hold-downs, and the hold-downs are engaged with each other when the receptacle and the plug are fastened.

The connector device is used to electrically connect a circuit board and a circuit board, or a circuit board and an electronic component using an FPCB or the like.

In recent years, connector devices are widely applied to circuit boards such as portable terminals, and light, thin, and short are required to meet the trend of miniaturization of electronic devices. In addition, as the density of electronic devices mounted on a circuit board increases, the number of contacts provided in a connector device increases, and an arrangement pitch between contacts is also in a trend of being designed to be very narrow.

Typically, a connector device includes a receptacle in which a plurality of receptacle contacts are assembled at a predetermined pitch in a receptacle insulator, and a plurality of plug contacts in one-to-one contact with the receptacle contact. It consists of a plug assembled in ).

The receptacle contact and the plug contact are connected to the receptacle-side cable and the plug-side cable, respectively, or are mounted on a circuit board. When a plug is inserted into the receptacle and the receptacle contact and the plug contact are in contact with each other and conduct, the receptacle-side cable and the plug-side cable or circuit boards are electrically connected.

In order to increase the connection reliability of the connector device having the above configuration, a technical means capable of fixing the locked state when fastening between the receptacle and the plug should be provided.

In this regard, Japanese Patent No. 3940387 discloses a technology related to a connector that can obtain a clear click feeling when locking is achieved through a hold-down used for reinforcing the mounting of the connector and the fitting is securely performed. Japanese Patent No. 3940387 has a pair of retaining arms that are elastically deformed in the plug and the receptacle, respectively, and a load is applied while the protrusions provided on the retaining arms of the plugs contact and pass through the protrusions provided in the retaining arms of the receptacle A hold-down structure that acts and locks when the protrusion passes through is completed and becomes a no-load state is disclosed.

However, conventional connector devices have a weak structure at both ends of a receptacle and a plug, so that the insulator ends are frequently damaged during a fastening operation, and a countermeasure is required.

In addition, in the connector device, it is very important to secure a solid fastening force and a stable signal transmission performance between the receptacle and the plug, and thus, improvement is required for quality improvement.

The present invention was invented to solve the above problems, and by using a hold-down used for board mounting to wrap the molded portions at both ends of the insulator, it is possible to prevent deformation or damage of the connector, and to prevent separation of the hold-down. , The connector can be miniaturized and lowered by reinforcing the strength of the insulator. Its purpose is to provide a connector device.

Another object of the present invention is to provide a connector device having a structure capable of improving fastening force by allowing two portions to be locked in close contact with each other during engagement between a receptacle holddown and a plug holddown.

Still another object of the present invention is to provide a connector device having a structure capable of stably transmitting a high current signal by making a multi-contact contact during engagement between a receptacle holddown and a plug holddown.

In order to achieve the above object, the present invention provides a receptacle with a receptacle insulator, a receptacle contact assembled at a predetermined pitch in the receptacle insulator, and a receptacle hold-down installed at both ends of the receptacle insulator in the longitudinal direction; And a plug insulator having a body insertable into an upper receptacle insulator, a plug contact assembled to the plug insulator at a pitch corresponding to the receptacle contact, and a plug having plug holddowns installed at both ends of the plug insulator in a longitudinal direction. And, when the receptacle and the plug are fastened, the receptacle contact and the plug contact make a one-to-one contact, and the receptacle hold-down and the plug hold-down engage with each other, and the receptacle hold-down is configured to accommodate the plug hold-down. A connector device comprising: a support plate having a'c'-shaped body that can be used, and a clip unit that is integrated with the support plate and provided to correspond to each of the three surfaces of the'c'-shaped body, and is coupled to the receptacle insulator Provides.

It is preferable that the clip portion is bent so as to surround at least both ends of the receptacle insulator in the width direction, so that when it is coupled to the plug, it serves to check the force received in the outer direction of the receptacle insulator.

The plug hold-down is a support plate having a'c'-shaped body, and a holder integrally formed with the support plate and provided to correspond to each of the three surfaces of the'c'-shaped body to cover at least part of the upper surfaces of both ends of the plug insulator It may include.

It is preferable that the holder is bent so as to surround at least both ends of the plug insulator in the width direction so as to prevent damage or damage to the plug when coupled to the receptacle.

When the receptacle holddown and the plug holddown are engaged, a force acts in a direction in which both sides of the'c'-shaped body of the receptacle holddown opposing each other are pushed and opened by the plug holddown, and at the same time, the receptacle holddown It is preferable that a deforming force is applied so that the central portion of the'C'-shaped body is deflected in the direction of both ends of the plug.

A contact protrusion may be formed on at least one holder of the plug holddown or the support plate of the receptacle holddown.

In addition, a locking protrusion may be formed in at least one holder of the plug hold-down, and a fastening portion into which the locking protrusion can be fitted may be formed in the receptacle hold-down.

In the receptacle holddown, a round surface through which the plug holddown can slide is preferably provided at a point at which the contact of the plug holddown begins.

The receptacle contact and the plug contact are arranged in rows on both sides along the length direction of the receptacle insulator and the plug insulator, respectively, and the receptacle and the plug are coupled to each other in a height direction of the receptacle insulator and the plug insulator. It is desirable to be.

It is preferable that the receptacle holddown and the plug holddown are electrically connected to each other when engaged with each other.

According to the present invention, the connector device has the following effects.

First, by a structure in which the receptacle holddown tightly surrounds the end of the receptacle insulator, separation of the receptacle holddown can be prevented and the breaking strength of the connector can be improved.

Second, the breakdown strength of the connector can be improved by a structure in which the plug holddown surrounds the end of the insulator.

Third, it is possible to implement an additional electrical connection means in addition to the contact by utilizing the holddown used for strengthening the mounting strength. When fastening between the receptacle and the plug, mechanical locking and electrical connection between the holddowns can be made at the same time, so it is possible to simplify the configuration of the connector.

Fourth, it is possible to reduce the number of contacts to be used by implementing additional electrical connection means by utilizing a holddown having a relatively large area compared to the contacts, so that the total length of the product can be reduced.

Fifth, when the receptacle hold-down and the plug hold-down are engaged, the center portion of the receptacle hold-down located at both ends of the receptacle is in close contact with the plug hold-down direction, so that the fastening force between the locking projection and the fastening portion can be improved.

Sixth, when the receptacle hold-down and the plug hold-down are engaged, a multi-point contact is made between the contact protrusions, thereby stably transmitting a high current signal.

Seventh, as the strength of the insulator is reinforced by the hold-down, there is an advantage in that the connector is miniaturized and low-profile design is free.

The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, which will be described later. It is limited only to and should not be interpreted.
1 is an exploded perspective view showing the configuration of a connector device according to a preferred embodiment of the present invention,
2 is a combined perspective view of FIG. 1,
3 is a perspective view showing in detail the configuration of a receptacle holddown in FIG. 1;
4 is a perspective view showing in detail the configuration of a plug holddown in FIG. 1;
5 is a plan view showing an arrangement structure of a receptacle holddown in FIG. 1;
6 is a plan view showing an arrangement structure of a plug holddown in FIG. 1;
7 is a plan view showing the principle of improving the fastening force when the receptacle hold-down and the plug hold-down are coupled according to the present invention;
8 is a cross-sectional view showing a coupling relationship between a receptacle holddown and a plug holddown provided according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention. Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

1 is an exploded perspective view showing the configuration of a connector device according to a preferred embodiment of the present invention, and FIG. 2 is a combined perspective view of FIG. 1.

1 and 2, a connector device according to a preferred embodiment of the present invention includes a receptacle 100 having a receptacle hold-down 103 near both ends in a longitudinal direction, and a length that is fastened to the receptacle 100. It includes a plug 200 having a structure in which both end surfaces in the direction and sidewalls adjacent thereto are wrapped by a plug hold-down 203 to be protected.

The receptacle 100 includes a receptacle insulator 101 made of an insulating resin, a plurality of receptacle contacts 102 assembled at a constant pitch along the longitudinal direction of the receptacle insulator 101, and assembled at both ends of the receptacle insulator 101. It has a receptacle hold-down 103.

The receptacle insulator 101 as a whole has a rectangular body. The rectangular body of the receptacle insulator 101 has a predetermined internal space for accommodating the plug 200 inserted in the height direction.

The receptacle contact 102 is provided by an elastic conductor that is bent into a shape including a substantially'U'-shaped portion to which the plug contact 202 can be fitted.

Receptacle hold-down 103 is provided at both ends of the receptacle insulator 101 in the longitudinal direction, respectively. The receptacle hold-down 103 is constituted by an elastic conductor that can be electrically connected while being engaged with the plug hold-down 203 when fastening between the receptacle 100 and the plug 200.

As shown in Fig. 3, the receptacle hold-down 103 includes a support plate 103a having a body (refer to the dotted line in Fig. 5) having a substantially'U'-shaped cross section, and one (upper) of the support plate 103a. Doedoe extending integrally from the edge and has a'C' shaped clip portion (103b ~ 103d) bent toward the outside. In particular, the clip portions 103b and 103c surrounding both ends in the width direction of the receptacle insulator 101 are applied against the force received in the outer direction of the receptacle insulator 101 when the clip portion 103d is coupled with the plug holddown 203. By serving as a check, it is possible to more reliably fix the receptacle hold-down 103 to the receptacle insulator 101.

The support plate 103a has a length and height that can be disposed on the inner side of the wall provided at both ends in the longitudinal direction of the receptacle insulator 101 and the inner sidewall vertically adjacent thereto, and the plug hold-down 203 to be described later is accommodated. It has a'C'-shaped body with a substantially'C'-shaped cross section.

In the support plate 103a, a fastening portion 103e having a predetermined shape is provided at the center of the'C'-shaped body. Preferably, the fastening portion 103e has a through-hole structure formed by cutting a portion of the lower edge of the support plate 103a, thereby providing a locking function for the locking protrusion 203e provided in the plug holddown 203 to be described later. to provide.

The clip portions 103b to 103d are provided to correspond to the three surfaces of the'C'-shaped body, respectively, and are fastened to the receptacle insulator 101, thereby substantially fixing the receptacle hold-down 103 to the receptacle insulator 101. Here, the clip part 103d located in the middle of the'C'-shaped body has a smaller dimension than the support plate 103a based on the width direction of the connector, and is located at the middle point of the support plate 103a. It is desirable. According to this configuration, as will be described later, when a force acts in the direction of spreading the two portions facing each other in the'c'-shaped body, the middle portion of the'c'-shaped body is more effectively deflected inward to increase the fastening force. You can increase it.

In the support plate 103a, the clip portion 103d located at the center of the'c'-shaped body is integrally formed with the support plate 103a, and is arranged to cover the upper ends of the walls at both ends of the receptacle insulator 101 in the longitudinal direction. do.

In the support plate 103a, the clip portions 103b and 103c respectively located on both sides of the'C'-shaped body have a body including a substantially'U'-shaped part. In addition, the curved portions of the clip portions 103b and 103c, that is, the upper edge portions, are provided with round surfaces capable of sliding while contacting protrusions 203f and 203g for contact of the plug hold-down 203 to be described later.

The plug 200 is made of an insulating resin and is a plug insulator 201 having a shape that can be matched with the receptacle insulator 101, and a plurality of plug insulators 201 assembled at a constant pitch to correspond to the pitch of the receptacle contact 102. The plug contact 202 of the, and the plug hold-down 203 assembled at both ends of the plug insulator 201 is provided.

The plug insulator 201 has a body having a shape corresponding thereto so that it can be inserted into an internal space provided in the receptacle insulator 101.

The plug contact 202 is provided by an elastic conductor that is bent into a shape including a substantially'U'-shaped portion so that it can be fitted to the receptacle contact 102.

Plug holddowns 203 are provided at both ends of the plug insulator 201 in the longitudinal direction, respectively. The plug hold-down 203 is configured by an elastic conductor that can be electrically connected while engaging with the receptacle hold-down 103 when fastening between the receptacle 100 and the plug 200.

As shown in Fig. 4, the plug hold-down 203 includes a support plate 203a having a'c'-shaped body (refer to the dotted line in Fig. 6) having a substantially'c' shape in cross section, and a support plate It is provided with holders (203b to 203d) which are integrally extended from one (upper) edge of (203a), but bent toward the inside of the'c'-shaped body.

The support plates 203a are disposed around both end surfaces of the plug insulator 201 in the longitudinal direction. More specifically, the support plate 203a is disposed to cover both end surfaces in the longitudinal direction of the plug insulator 201 and sidewalls adjacent thereto.

The holders 203b to 203d are provided to correspond to each of the three surfaces of the'c'-shaped body and are fastened to cover part or all of the upper surfaces of both ends of the plug insulator 201 to protect the plug insulator 201 from damage, etc. . Here, the upper surfaces of both ends of the plug insulator 201 are portions facing the bottom surface of the inner space of the receptacle insulator 101 when fastening between the receptacle 100 and the plug 200.

In the support plate 203a, the boundary between the holder 203d and the support plate 103a located at the center of the'c'-shaped body is fitted to the fastening part 103e provided in the receptacle holddown 103. A locking protrusion 203e that can be provided is provided.

In the support plate 203a, the holders 203b and 203c, which are respectively located on both sides of the'c'-shaped body, have a bent body including a substantially'U'-shaped part so that a hook structure is formed. The insulator 201 may be firmly fastened in a form surrounding both ends in the width direction. Accordingly, damage or breakage of the plug insulator 201 can be effectively prevented when fastening between the receptacle 100 and the plug 200.

In the support plate (203a), the surface of the clip portions (103b, 103c) of the receptacle hold-down (103) at the boundary between the holders (203b, 203c) and the support plate (103a) located on both sides of the'c'-shaped body Contact protrusions (203f, 203g) that make contact with the are provided. According to this configuration, when the receptacle hold-down 103 and the plug hold-down 203 are coupled, the contact protrusions 203f and 203g and the clip portions 103b and 103c make two-point contact with each other, thereby stabilizing a high current signal. You can get the effect that can be delivered with.

Additionally, the plug hold-down 203 protrudes from both sides of the'C'-shaped body in the width direction of the connector in the support plate 203a, but is exposed to the outside of the plug insulator 201 to be electrically connected to the board. Mounting portions 203h and 203i are provided.

In the connector device having the above configuration, when the receptacle 100 and the plug 200 are fastened, the plug insulator 201 is inserted into the receptacle insulator 101 in the height direction of the connector to be mated, and each plug contact 202 Is in one-to-one contact with the receptacle contact 102, and mechanical and electrical connections are made between the receptacle hold-down 103 and the plug hold-down 203.

7A and 7B illustrate a receptacle hold down 103 and a plug hold down 203, respectively. When coupling between the receptacle hold-down 103 and the plug hold-down 203 proceeds, both sides of the'C'-shaped body of the receptacle hold-down 103 and the corresponding clip portions ( 103b, 103c) are pushed by the contact protrusions 203f and 203g of the plug hold-down 103 to exert a force in the direction of opening. In addition, at the same time, a deformation force is applied to the center portion of the'C'-shaped body of the receptacle hold-down 103 and the corresponding clip portion 103d to be deflected toward both ends of the plug 200 in the longitudinal direction. Accordingly, as shown in FIG. 8, the receptacle hold-down 103 and the plug hold-down 203 are in close contact with each other, so that the locking protrusion 203e provided in the plug hold-down 203 is receptacle hold-down ( It may be locked to the fastening portion 103e provided in 103).

Therefore, when the fastening between the receptacle 100 and the plug 200 is completed, the plug hold-down 203 is locked to the receptacle hold-down 103 so that the engaged state between the receptacle hold-down 103 and the plug hold-down 203 is Stays stable.

As described above, the connector device according to the present invention prevents the receptacle hold-down 103 from being separated from the receptacle insulator 101 by a structure in which the receptacle hold-down 103 closely surrounds the end of the receptacle insulator 101. Then , the plug hold-down 203 substantially surrounds both ends of the plug insulator 201, thereby improving the breaking strength of the connector. In addition, it is possible to improve the clamping force between the receptacle hold down 103 and the plug hold down 203, that is, the extraction force, and stably high current signal by making a multi-point contact between the receptacle hold down 103 and the plug hold down 203 There is an effect that can provide the function of transmission (or ground).

In the above, although the present invention has been described by a limited embodiment and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following will be described by those of ordinary skill in the art to which the present invention pertains. It goes without saying that various modifications and variations are possible within the equal scope of the claims.

100: receptacle 101: receptacle insulator
102: receptacle contact 103: receptacle holddown
103a, 203a: support plate 103b, 103c, 103d: clip portion
103e: fastening part 200: plug
201: plug insulator 202: plug contact
203: plug holddown 203b, 203c, 203d: holder
203e: protrusion for locking 203f,203g: protrusion for contact
203h,203i: mount

Claims (10)

A receptacle insulator 101 having a rectangular inner space with an open top by providing walls of a certain height at both ends in the length direction and side walls of a certain height at each end in the width direction, and a pitch determined by the receptacle insulator 101 A receptacle 100 having an assembled receptacle contact 102 and receptacle hold-down 103 installed at both ends of the receptacle insulator 101 in the longitudinal direction; And
A plug insulator 201 having a body insertable into the inner space of the upper receptacle insulator 101, a plug contact 202 assembled to the plug insulator 201 at a pitch corresponding to the receptacle contact 102, and the Includes; Plug 200 having plug hold-downs 203 installed at both ends of the plug insulator 201 in the longitudinal direction,
When the receptacle 100 and the plug 200 are fastened, the receptacle contact 102 and the plug contact 202 make a one-to-one contact, and the receptacle hold-down 103 and the plug hold-down 203 Engage,
The receptacle hold-down 103 includes a middle portion 103aa disposed on an inner surface of a wall provided at one end in the longitudinal direction of the receptacle insulator 101, and extends from both side ends of the middle portion 103aa, respectively, and the receptacle A first support plate 103a having a'C'-shaped body in a horizontal cross-section by having both side portions 103ab and 103ac disposed on the inner sides of both side walls provided at both ends of the insulator 101 and facing each other. , A plurality of clip portions 103b, 103c, 103d provided to correspond to the center portion 103aa and both side portions 103ab, 103ac of the first support plate 103a, respectively, and coupled to the receptacle insulator 101 Including,
When the receptacle hold-down 103 and the plug hold-down 203 are engaged, both side portions 103ab and 103ac of the first support plate 103a are pushed by the plug hold-down 203 to open each other. The plurality of clip portions 103b are applied so that a force is applied to the first support plate 103a, and a deformation force for biasing the middle portion 103aa toward the plug hold-down 203 is applied to the middle portion 103aa of the first support plate 103a. , 103c, 103d) are extended upward from the upper ends of both side portions 103ab and 103ac of the first support plate 103a, but are bent so as to surround the inner, upper and outer surfaces of the corresponding side walls, and are reversed in vertical section. First and second clip portions 103b and 103c having a'U'shape; And a third clip part 103d extending upward from the upper end of the middle portion 103aa of the support plate 103a, but being bent so as to surround only the inner and upper surfaces of the wall, and having an inverted'L' shape in a vertical section. Including,
The plug hold-down 203 includes a middle portion 203aa disposed on one end side of the plug insulator 201 in the longitudinal direction, and extends from both side ends of the middle portion 203aa, respectively, of the plug insulator 201. A second support plate (203a) disposed on both end sides in the width direction and having both side portions (203ab, 203ac) facing each other and having a'C'-shaped body in a horizontal cross-section; A plurality of holders (203b, 203c) provided to correspond to the center portion (203aa) of the second support plate (203a) and both side portions (203ab, 203ac) respectively to surround at least a portion of the top surface of the plug insulator (201) , 203d); And mounting portions 203h and 203i protruding outward of the plug insulator 201 from side portions 203ab and 203ac of the second support plate 203a and electrically connected to the substrate,
In the first and second holders 203b and 203c corresponding to both side portions 203ab and 203ac of the second support plate 203a among the plurality of holders 203b, 203c and 203d, the plug insulator 201 ) Protruding in the width direction of each other but protruding in opposite directions to each of the side portions 103ab and 103ac of the first support plate 103a, and contact protrusions 203f and 203g are formed,
The third holder 203d corresponding to the middle portion 203aa of the second support plate 203a among the plurality of holders 203b, 203c, and 203d extends upward from the upper end of the middle portion 203aa. It is bent so as to surround the side and top surfaces of the plug insulator 201 and has an inverted'L' shape in a vertical section,
In the middle portion 103aa of the first support plate 103a, where a deforming force is applied toward the plug hold-down 203, a fastening portion 103e having a through-hole structure is formed,
In the third holder 203d, a locking protrusion 203e that is fitted into the through hole structure of the fastening portion 103e is formed. Connector device characterized in that. The method of claim 1,
The first and second clip portions 103b and 103c are bent so as to surround at least both sidewalls of the receptacle insulator 101, and receive in the outer direction of the receptacle insulator 101 when coupled with the plug 200. Connector device, characterized in that it serves as a check against force. delete The method of claim 1,
The first and second holders 203b and 203c are bent so as to surround at least both ends in the width direction of the plug insulator 201, so that damage or breakage of the plug 200 is prevented when combined with the receptacle 100. Connector device, characterized in that to prevent. delete delete delete The method of claim 1,
In the receptacle hold down (103), a connector device, characterized in that a round surface through which the plug hold down (203) can slide is formed at a point where the contact of the plug hold down (203) starts. The method of claim 1,
The receptacle contact 102 and the plug contact 202 are arranged in rows on both sides along the longitudinal direction of the receptacle insulator 101 and the plug insulator 201, respectively,
The receptacle 100 and the plug 200 are fastened in a height direction of the receptacle insulator 101 and the plug insulator 201 to form a shape with each other. The method of claim 1,
The connector device, characterized in that they are electrically connected to each other when the receptacle hold-down (103) and the plug hold-down (203) are engaged.

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