KR20100043145A - Electrical connector for multicable - Google Patents

Abstract

This invention is about Electrical Connector for Multicable whose basic structure includes the plug with a cell plug, with several connection terminals inside, fixed by the 1st and 2nd springs and a cable grip spring inserted to prevent damages to multicable, and the receptacle with several sockets to be connected to the connection terminals of the plug. This connector is designed to ease connection and disconnection between plug and receptacle even in narrow spaces, on narrow workspaces, or when the receptacle is fixed onto equipment. Also, electrical stability of connection is guaranteed by protecting the joint between plug and coaxial cable from peeling or bending under impact and establishing fast connection and disconnection prevents electrical shock to improve the reliability of electrical appliances. Thus, this invention prevents serious malfunctioning of electrical devices and equipment to improve quality and reliability of operation.

Description

Connector for multi-core cable electric connection {ELECTRICAL CONNECTOR FOR MULTICABLE}

The present invention relates to a connector for multi-core cable electrical connection, wherein the receptacle connector and the plug connector are coupled to each other even when the receptacle connector is fixedly installed in a narrow space or a narrow workbench, a device, or the like. It is easy to disconnect and prevents breakage such as peeling off of the connector between the plug connector and the coaxial cable due to impact or bending, and excellent electrical connection and disconnection work between the receptacle connector and the plug connector. In order to improve the reliability of the product by preventing the electric shock due to the electrical connection and disconnection in a short time, and to prevent the occurrence of serious malfunctions in the connected devices, equipment, etc. Beaker for cable electric connection It relates to the emitter.

In general, the connector for electrical connection is divided into a plug connector that is coupled to the end of the cable and the connection socket is inserted therein, and a receptacle connector fixedly coupled to the end of the cable or the equipment and inserted into the connector.

The plug connector and the receptacle connector are electrically connected to each other, and a connecting pin and a connection socket inserted therein may also be electrically connected to each other so that the desired work can be performed by interconnecting the cables or connecting the cables to the equipment.

As described above in the prior art for the electrical connection connector consisting of a plug connector, a receptacle connector and the like.

The problem caused by the structure that enables the electrical connection and disconnection between the plug connector and the receptacle connector by using a nut-type coupler provided as an outer circumferential surface of the plug connector to be screwed and separated from the screw portion of the outer circumferential surface of the receptacle connector. In order to solve the problem of stopping the operation of machinery and other safety accidents due to the inability to perform rapid electrical connection in the process of rotating several times and in the process of disconnection, it is registered with the proposed Korea Patent Office. Utility Model Registration No. 333796 discloses a connecting device for electrical connection.

In the case of the prior art when the coupling and release of the receptacle body portion and the plug body portion of the ball and the ball seating groove by the front and back pressing and pulling operation of the slide coupler for pressing and supporting the ball is formed into the outer peripheral surface of the receptacle through the inner peripheral surface Although it is proposed to be able to connect and disconnect between the plug connector and the receptacle connector by joining and separating, the connection may be released because the slice coupler can be easily retracted when an impact force from the outside is applied. When the receptacle connector is fixedly arranged at equal intervals, the plug connector can be pushed in and the coupling with the receptacle connector may be easy, but it may not be easy to remove it again. Followed by discomfort in work There is a problem.

In addition, Republic of Korea Patent Publication No. 10-2005-77512 (published on August 3, 2005), when the size of the workbench that can be installed multiple connectors is reduced, the connector spacing between the connectors installed in the workbench is narrow, In view of the fact that it is not easy or takes a long time to replace, in order to solve this, the control cap is moved to a state where the elastic piece is tightened by the stepped surface which is narrowed by moving forward and resiliently to complete the electrical connection and the above The control cap is retracted to move from the narrower inner diameter of the control cap to the wider inner diameter position connected to the step surface, thereby releasing the locking state of the locking groove, thereby maintaining the efficiency of use and stability in the combined state. .

However, the above prior art can be applied only to the case of coaxial cable by disconnection, and there is a problem that its application is not easy when the structure of the plug connector is different, such as a multipole connector.

In addition, the coaxial cable is directly exposed to the outside from the end of the connector and is connected to the outside, and when the impact between the connector and the coaxial cable from the outside, the wire coating is easily peeled off, which causes a short circuit or serious malfunction of the device or equipment. do.

Technical challenge

Therefore, the present invention provides a relatively easy coupling and disengagement between the receptacle connector and the plug connector, even when the receptacle connector is fixedly installed in a narrow space or a narrow workbench, a device, or the like. The purpose is to improve the reliability of the product by preventing the electric shock caused by the electrical connection and disconnection in a short time.

In addition, the present invention prevents serious malfunctions in the device, equipment, etc. by improving the reliability of use by preventing breakage such as peeling of the coating due to impact or bending of the connection portion between the plug connector and the coaxial cable. Has a different purpose.

Technical solution

In order to solve the above technical problem, one end side is supported while receiving the elasticity of the inner spring, but the front side coupling is pulled out in advance according to the elastic force of the inner spring by pushing so that the coupling with the receptacle connector is possible. In the case of separation, if the coupling is pulled back, the coupling is separated from the receptacle coupled with the inner circumference of the coupling, and the plug spring and the receptacle connector are easily separated between the plug connector and the receptacle connector while the inner spring is compressed. It provides a structure that can be easily and easily combined and separated.

In another aspect, the present invention provides a structure having a spring to the rear end of the plug connector in order to protect the outer peripheral surface of the multi-core cable which is introduced into the plug connector inside and connected to the rear end.

Favorable effect

According to the present invention, the coupling and disconnection operation between the plug connector and the receptacle connector can be performed easily, easily and quickly in a narrow space or a narrow workbench, a device, etc., thereby improving the reliability of the product by suppressing the occurrence of electric shock between the devices. Of course, the connection between the plug connector and the coaxial cable can be completely prevented from damage such as peeling of the coating due to impact or bending, and serious malfunction of the equipment due to a short circuit or the like can occur. It can be expected to have an effect that can improve the reliability in use by preventing it.

1 is an overall perspective view of a connector for multi-core cable electrical connection showing a state in which a plug connector and a receptacle connector according to the present invention are coupled to each other;

FIG. 2 is a perspective view showing a disconnected state between a plug connector and a receptacle connector in the connector for multi-core cable electrical connection according to FIG. 1; FIG.

3 is an exploded perspective view of parts separated from the plug connector of FIGS.

Figure 4 is a perspective view of parts separated from the receptacle connector according to Figures 1,2

Figure 5 is a perspective view showing the separation of the coupling nut portion of the plug connector proposed by the present invention

Figure 6 is a perspective view showing the separation of the intermediate coupling portion of the plug connector presented by the present invention

Figure 7 is a perspective view showing the rear nut portion of the plug connector presented by the present invention separated

8 is an overall cross-sectional view of the plug connector according to the present invention;

9 is a cross-sectional view of a receptacle connector according to the present invention.

10 is a cross-sectional view showing a state before coupling between a plug connector and a receptacle connector;

11 is a cross-sectional view showing a state in which the elastic piece of the jack latch is guided inward by the first spring while pressing the guide bushing when the end side of the receptacle connector enters the upper end of the plug connector.

12 is a cross-sectional view showing a state in which the coupling nut portion of the plug connector is moved forward by the elastic force of the second spring by FIG.

FIG. 13 is a cross-sectional view illustrating a state in which a plug connector and a receptacle connector are coupled by FIG. 12. FIG.

14 is a perspective view showing a state in which the rear nut portion adopted in the present invention is made in the form of a "el" shaped elbow;

※ Brief description of the main symbols in the drawings

100; Plug connector 110; Coupling Nut Part

111; Guide 111; guide

111a; Tapered surface 112; Groove

120; Cellplug 121; Connection terminal

122; First insulator 123; Secondary insulator

124; Gasket 125; Step

126; First spring 127; projection part

128; Body 129; Tooth

130; Guide bushing 140; Jack Latch

141; Jaw 142; Elastic piece

143; Incision 144; Stone

145; Lower body 146; 2nd spring

150; Intermediate coupling portion 151; home

152; Cable packing part 152a; Tooth

152b; Elastic incision piece 152c; Unevenness

153; Washer 154; O-ring

160; Rear nut portion 161; Step

162; Cable grip spring 163; sleeve

164; Packing 200; Receptacle connector

210; Cell receptacle 220; Tightening Nut

221; O-ring 230; Combined groove

240; Guide groove 250; First insulator

260; Second insulator 270; gasket

280; Connection terminal 300; Multi-core cable

Best Mode for Carrying Out the Invention

The present invention provides a plug connector having a cable grip spring for preventing a damage of a multi-core cable to a rear end side such that a cell plug having a plurality of connection terminals interposed therein and fixed to the front end side is supported by the first and second springs. The basic configuration is that the socket terminal coupled to the terminal is fixed by a plurality of receptacle connectors coupled to and separated from the plug connector.

The present invention having the above-described basic configuration includes a cell plug fixed to include a plurality of first insulators in which a plurality of connection terminals are in-built and a second insulator contacting the rear side of the first insulator, and to provide elasticity to the cell plugs. A first spring provided as an outer circumferential surface and a guide bushing for supporting the first spring, a jack latch surrounding the guide bushing is provided, and a second spring for providing elasticity is provided on an outer circumferential surface of the jack latch, A coupling nut part surrounding the second spring and the jack latch; A rear nut part having a cable grip spring configured to allow the multi-core cable to enter the front end side of the sheath in which the sheath is cut and to be connected to the connection terminal and to support the outer peripheral surface of the multi-core cable to the other end; A plug connector comprising an intermediate coupling portion connecting the coupling nut and the rear nut, respectively;

By a receptacle connector having a fastening nut coupled to the screw thread and forming a thread on the outer circumferential surface of the receptacle to allow a plurality of socket terminals coupled to the respective connection terminals to penetrate the first and second insulation parts. It constitutes and constitutes the best embodiment of this invention.

Embodiment for Invention

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described.

As shown in FIG. 1, a plug connector having a connection form for inserting a multi-core cable into an electrical connection and a receptacle plug connected to a printed circuit board of a workbench or equipment to be connected or separated from the plug connector Is done.

1 is a perspective view showing the separation of the plug connector 100 applied to the present invention.

As shown in FIG. 1, the plug connector 100 is screw-coupled by the coupling nut part 110, the intermediate coupling part 150, and the rear nut part 160 from the front end side, and has a completed plug connector 100. ).

First, the structure of the coupling nut part 110 will be described.

The coupling nut part 110 is to be coupled to the receptacle connector 200, which will be described later. The jack latch 140 and the cell that surround the cell plug 120, the guide bushing 130, and the guide bushing 130 are fixed. The first spring and the second spring 146 provided on the outer circumferential surface of the jack latch 140 for providing an elastic force to the plug 120 is made.

The cell plug 120 is fixed after forming a first insulator 122 having a plurality of connection terminals 121 interposed therein and a second insulator 123 contacting to the rear side of the first insulator 122. It is embedded.

In addition, the pin O-rings 121a may be inserted into the connection terminals 121 as shown in FIGS. 5 and 8, respectively.

The pin O-ring 121a can completely prevent impurities or moisture that may flow into the connection terminal 121, and thus, the airtightness and the individual waterproof effect of the individual connection terminal 121a can be sufficiently achieved. It has the expected effect to prevent the malfunction of equipment due to infiltration and to significantly reduce maintenance costs.

As shown in FIG. 5, the cell plug 120 has a plurality of protrusions 127 formed on the outer circumferential side thereof to guide the cell plug 120 when combined with the receptacle connector 200. Afterwards, a male screw was formed on the outer peripheral surface side of the body 128, and the teeth 129 were provided on the end side.

The first and second insulators 122 and 123 are formed by passing through a plurality of connection terminals 121. The rear ends of the connection terminals 121 are connected to the front end side of the multi-core cable 300 and the connection terminals 121 are connected to each other. The front end side is connected to or disconnected from the terminal of the receptacle connector 200 to be described later to enable the desired work.

Meanwhile, a gasket 124 may be provided between the first and second insulators 122 and 123.

In addition, the first spring 126 is formed between the stepped 125 and the lower end of the guide bushing 130 provided in an annular shape toward the distal end of the cell plug 120 so that the outer diameter is extended to the outer circumferential surface of the cell plug 120. It was to be elastically supported, and the jack latch 140 to be brought into contact with the inner peripheral surface of the coupling nut portion 110 while being in contact with the outer peripheral surface of the guide bushing (130).

The jack latch 140 is formed after the jaw 141 toward the upper end of the lower body 145 surrounding the body 128 of the cell plug 120 is extended, but a plurality of elastic to the incision 143 spaced at equal intervals Forming a piece 142 and to the end side of each elastic piece 142 to form a protrusion 144 having a relatively blunt form.

Herein, the structure of the coupling nut part 110 corresponding to this will be in the state where the jack latch 140 and the inner circumferential surface of the coupling nut part 110 are in contact with each other, and the elastic piece 142 of the jack latch 140 is provided. In order to allow the second spring 146 surrounding the outer circumferential surface to be inserted and exist in a compressed state, the groove 112 is formed at the inner circumferential surface side of the coupling nut part 110.

On the other hand, by the groove 112, a guide 111 formed on the inner circumferential surface side of the coupling nut part 110 is relatively formed, and the tapered surface 111a inclined toward the end side of the guide 111 is formed.

Therefore, the coupling state of the coupling nut part 110 and the jack latch 140 is, as shown in FIG. 8 or 10 before the first receptacle connector 200 is engaged, the guide bushing 130 is the first spring The upper side of the guide bushing 130 pushes the upper inner surface of the elastic piece 142 of the jack latch 140 in a state of being elastically supported upward by 126, and thus, the end of the elastic piece 142. The outer surface of the protrusion 144 on the side is maintained in close contact with the tapered surface 111a of the coupling nut 110.

Here, the guide 111 and the tapered surface 111a of the coupling nut part 110 are for guiding the protrusion 144 formed at the end side of the elastic piece 142 of the jack latch 140 as described above. When the end side of the receptacle connector 200 enters the front end of the plug connector 100 when the connector 100 and the receptacle connector 200 are engaged, the guide bushing 130 is pressed while the guide bushing 130 is pressed. One spring 126 is pressed, the upper side of the guide bushing 130 is released in a state of strongly pushing the elastic piece 142 of the jack latch 140 to the outside, the elastic piece of the jack latch 140 142 is directed inward.

Therefore, the second spring 146 inserted into the groove 112 toward the inner circumferential surface of the coupling nut part 110 is released while being supported by the upper surface of the jaw 141 on the outer circumferential surface of the jack latch 140. 110 is protruded forward and is coupled to the coupling groove 230 formed in the outer peripheral surface of the receptacle connector 200, which will be described later.

As the coupling nut unit 110 is coupled to the rear side, the present invention provides an intermediate coupling unit 150.

As shown in FIG. 6, the intermediate coupling part 150 forms a female screw on the inner circumferential surface of the front end and a male screw on the outer circumferential surface of the rear end to form a hollow shape and a rear end inner circumferential surface of the rear end on which the female thread is formed. The groove 151 to be fitted is formed and the cable packing port 152 and the washer 153 are sequentially inserted into the lower end to be screwed into the rear nut part 160 to be described later.

The cable packing port 152 is made of a synthetic resin material, the front end portion is a tooth 152a to be in contact with the teeth 129 of the lower end of the cell plug 120, the rear end of the cable packing port 152 is equally spaced A plurality of elastic cut pieces 152b to be cut off are formed, and an inner circumferential surface of the elastic cut pieces 152b forms an unevenness 152c to enable a firm grip of the multi-core cable 300 entering the inside. .

In addition, the insulating sleeve 156 and the fixing sleeve 157 in the cable packing port 152 is to be embedded and positioned in sequence as shown in FIG.

On the other hand, the rear nut portion 160 is coupled to the male screw of the lower side of the intermediate coupling portion 150 and serves to guide the multi-core cable 300 is entered, forming a female screw in the middle of the inner peripheral surface and the lower inner surface By forming the step 161 to support the cable grip spring 162 so as not to fall out, the sleeve 163 and the packing 164 inside the sleeve 163 above the step 161 is provided.

Herein, the sleeve 163 is made of a brass bar.

In addition, the upper end of the cable grip spring 162 is preferably formed larger than the middle and bottom outer diameter of the cable grip spring 162 in order to maintain the state over the step 161, the cable grip spring 162 To the rear nut part 160, the inner end of the rear nut part 160 enters inward so that the lower end portion of the upper end of the cable grip spring 162 can be caught by the step 161. , The cable grip spring 162 is configured not to be pulled out even if it is forcibly pulled to the lower rear nut 160.

The cable grip spring 162 enters the inner end of the rear nut part 160 so that the cable grip spring 162 protrudes a predetermined length toward the rear end of the rear nut part 160 as shown in the drawing. At the connection part of the multi-core cable 300 and the rear nut part 160 which enters the side side, the multi-core cable 300 is prevented from being bent during work process or use, and a short circuit may occur due to peeling of the coating. This is to prevent safety accidents, equipment malfunctions, and the like.

Meanwhile, the receptacle connector 200 is provided to be engaged with the plug connector 100 described by the above structure.

The receptacle connector 200 is configured to be connected to the printed circuit board (not shown) of the equipment or other cable end side to enable electrical connection between the plug connector 100 and the multi-core cable 300 that follows.

This receptacle connector 200 is presented by the present invention by a configuration as shown in FIGS. 2, 4, 9.

That is, the receptacle connector 200 is formed with a male screw toward the upper outer circumferential surface thereof, and the tightening nut 220 is fastened, and an O-ring 221 is provided above the tightening nut 220 and coupled to the lower outer surface of the receptacle connector 200. The groove 230 is formed and a plurality of guide grooves 240 are formed in the longitudinal direction toward the inner circumferential surface side.

In addition, the receptacle connector 200 includes a first insulator 250 and a second insulator 260, and a plurality of socket terminals 280 penetrating the first and second insulators 250 and 260 are embedded therein. A plurality of connection terminals 121 provided in one plug connector 100 may be connected, and a gasket 270 may be provided between the first and second insulators 250 and 260.

The coupling groove 230 may be engaged with the protrusion 144 formed at the end side of the elastic piece 142 of the jack latch 140 described above.

That is, when the receptacle connector 200 enters the body end of the receptacle connector 200 into the coupling nut part 110 of the plug connector 100 to make an electrical connection with the plug connector 100, the plug A guide groove 240 formed at a lower inner circumferential side of the receptacle connector 200 is inserted along the protrusion 127 formed on the outer circumferential side of the cell plug 120 in the connector 100 to couple the plug connector 100 to the receptacle connector 200. This is made so that the connection between each connection terminal (121,280) is made.

In order to enable the in-place coupling between the plug connector 100 and the receptacle connector 200 by coupling between the protrusion 127 and the guide groove 240, the distance between each protrusion 127 is different and corresponding thereto. It is preferable to form the guide grooves 240 of the inner circumferential surface of the receptacle connector 200 to allow the male terminals of the connection terminals 121 and 280 to be connected by the coupling between the plug connector 100 and the receptacle connector 200 at the correct positions. Do.

Here, the tightening nut 220 coupled to the male screw formed as the outer circumferential surface of the receptacle connector 200 is, for example, when coupled to the one side of the socket terminal 280 of the printed circuit board and the receptacle connector 200 to the outside of the equipment frame The other end of the receptacle connector 200 protrudes, and is connected to the plug connector 100, in which the receptacle connector 200 connected to the printed circuit board (not shown) is firmly fixed to the equipment frame (not shown). .

That is, in the state in which the tightening nut 220 is completely separated from the receptacle connector 200, first, it enters the inside of the equipment to be connected to the printed circuit board, and then the tightening nut 220 is screwed on the outer circumferential surface of the receptacle connector 200. By maintaining a firm coupling by, then the connection between the other end and the plug connector 100 is to be performed.

In this case, the O-ring 221 is in contact with the inner surface of the equipment frame and performs a sealing role.

On the other hand, as shown in Figure 14, the rear nut portion 160 can be made to form a "b" shaped elbow.

The coupling state and the process for the electrical connection between the plug connector 100 and the receptacle connector 200 having the above configuration will be described with reference to FIGS. 10 to 13.

When one end of the receptacle connector 200 enters the inside of one end of the plug connector 100, that is, the coupling nut part 110, the cell plug 120 in the plug connector 100 is formed toward the outer circumferential surface side of the plug connector 100. The guide groove 240 formed at the lower inner circumferential side of the receptacle connector 200 along the protrusion 127 is inserted into a fixed position, and the plug connector 100 and the receptacle connector 200 are coupled to each other.

In this case, as shown in FIG. 10, before the first receptacle connector 200 and the plug connector 100 are fastened, the guide bushing 130 is elastically supported by the first spring 126 and upwardly supported. 130) the upper end forms a shape pushing the upper inner surface of the elastic piece 142 of the jack latch 140, the outer surface of the protrusion 144 on the end side of the elastic piece 142 is the coupling nut part 110 It keeps in close contact with the tapered surface (111a) of.

In this state, when the plug connector 100 is pushed toward the receptacle connector 200, the end side of the receptacle connector 200 is pressed into the tip of the plug connector 100, and the guide bushing 130 is pressed. 130) at the same time as pressing the first spring ring 126 provided at the lower side, the upper side of the guide bushing 130 is released in a state of strongly pushing the elastic piece 142 of the jack latch 140 to the outside, The elastic piece 142 of the jack latch 140 is directed inward.

Therefore, the second spring 146 inserted into the groove 112 toward the inner circumferential surface of the coupling nut part 110 is released while being supported by the upper surface of the jaw 141 on the outer circumferential surface of the jack latch 140. 110 is protruded forward and is fully engaged with the coupling groove 230 formed as the outer peripheral surface of one end of the receptacle connector 200, and the socket terminal 280 and the multi-core cable 300 front end side of the receptacle connector 200 It leads to an electrical connection state between the connection terminal 121 of the plug connector 100 is coupled.

On the other hand, when the separation operation between the plug connector 100 and the receptacle connector 200 pulls the coupling nut portion 110 of the plug connector 100 to the rear side while pressing the second spring 146 to crimp the receptacle connector ( 200, the protrusion 144 of the jack latch 140 in the state coupled with the engaging groove 230 of the outer circumferential surface is released, so that the complete separation between the plug connector 100 and the receptacle connector 200 can be performed quickly. It becomes possible.

According to the present invention, when the receptacle connector is fixedly installed in a narrow space or a narrow workbench, a device, or the like, as well as when connected to a cable, the receptacle connector and the plug connector can be relatively easily and quickly formed. It can improve the reliability of the product by preventing electrical shock due to electrical connection and disconnection workability and prevent electrical connection and disconnection within a short time, and improve reliability in use by preventing serious malfunctions in equipment. Industrial applicability is also considerable.

Claims (10)

In the multi-core cable electrical connection connector consisting of a plug connector 100 and a receptacle connector 200 to enable electrical connection and disconnection using the multi-core cable 300, A connection terminal 121 including a gasket 124 between the first insulator 122 and the second insulator 123 which is in contact with the rear side of the first insulator 122, the first insulator 122, and the second insulator 123. ) And a plurality of cell plugs 120 in which a plurality of inner shells are fixed and a guide bushing for supporting the first springs 126 and the first springs 126 which are provided as outer circumferential surfaces to provide elasticity to the cell plugs 120. 130 is provided, and the jack latch 140 is provided on the outer surface of the guide bushing 130 and is provided on the outer circumferential surface of the jack latch 140 to constitute a second spring 146 providing elasticity, A coupling nut part 110 surrounding the two springs 146 and the jack latch 140; The rear nut is provided with a cable grip spring 162 for entering the multi-core cable 300, the front end side of which the incision is cut is connected to the connection terminal 121 and supports the outer peripheral surface of the multi-core cable 300 to the other end side. Unit 160; A plug connector 100 comprising an intermediate coupling part 150 connecting the coupling nut part 110 and the rear nut part 160, respectively; A plurality of socket terminals 280 are coupled to the connection terminals 121 of the coupling nut part 110 through the first insulator 250 and the second insulator 260 and the gasket 270 disposed therebetween. A connector for multi-conductor cable electrical connection, comprising a receptacle connector (200) provided with a tightening nut (220) which forms a thread on the outer circumferential surface of the cell receptacle (210) fixed to the dog mouth and is coupled to the thread. The method of claim 1, The cell plug 120 is provided with a plurality of protrusions 127 toward the outer circumferential surface thereof to guide when combined with the receptacle connector 200, and forms a stepped portion 125 to the lower side, followed by a male screw toward the outer circumferential surface side of the body 128. And a toothed portion (129) on an end side thereof. The method of claim 1, The jack latch 140 is formed after the jaw 141 toward the upper end of the lower body 145 surrounding the body 128 of the cell plug 120 is extended, but a plurality of elastic to the incision 143 spaced at equal intervals A connector for multi-core cable electrical connection comprising forming a piece (142) and forming a protrusion (144) having a blunt shape on an end side of each elastic piece (142). The method of claim 1, A guide 111 having a tapered surface 111a is formed as an inner circumferential surface of the coupling nut part 110, and a recess 112 is formed at a lower side of the guide 111 so that the second spring 146 is embedded therein. Connector for multi-core cable electrical connection comprising the. The method of claim 1, The intermediate coupling part 150 is a groove 151 for forming the female screw on the inner circumferential surface of the tip and the male screw on the outer circumferential surface of the rear end to form a hollow shape and insert the O-ring 154 into the rear inner circumferential surface on which the female screw is formed. And a cable packing port 152 and a washer 153 are sequentially inserted into the lower side thereof. The method of claim 5, The cable packing port 152 is made of a synthetic resin material, the front end portion is made of teeth 152a, the rear end is to be cut at equal intervals, but the inner circumferential surface of the multi-core cable (152c) is formed to enter the inside ( A multi-core cable including a plurality of elastic cut pieces 152b integrally formed to enable a firm grip of the 300, and an insulating sleeve 156 and a fixing sleeve 157 are sequentially embedded therein and positioned therein. Connector for electrical connection. The method of claim 1, The upper end outer diameter of the cable grip spring 162 is larger than the middle and bottom outer diameter of the cable grip spring (162) connector for electrical connection. The method of claim 1, The receptacle connector 200 is formed with a male screw toward the upper outer circumferential side of the fastener nut 220, and an O-ring 221 is provided on the upper side of the tightening nut 220, and the coupling groove is connected to the lower outer circumferential surface of the receptacle connector 200. And forming a plurality of guide grooves 240 in the longitudinal direction toward the inner circumferential surface side thereof. The method of claim 1, Connector for the multi-core cable electrical connection comprising forming the rear nut portion 160 in the form of an elbow. The method of claim 1, Pin o-ring (121a) is inserted into each of the connection terminal 121, the connector for the multi-core cable electrical connection comprising the airtightness and individual waterproof of the individual connection terminal (121a).

Images