TWI385871B - Electrical connector for multi-cable - Google Patents

Description

Multi-cable electrical connector

The present invention relates to an electrical connector for multiple cables. The purpose of this connector is to make it easy to disconnect and connect the insert and the receptacle, even in a narrow space, under a narrow working space, or when the receptacle is attached to the device. In addition, by protecting the plug-in and the joint of the cable that is detached or bent due to an external force, and establishing a quick connection and disconnection to prevent electric shock, the reliability of the electric appliance is improved to ensure power stability during connection. Therefore, the present invention can prevent serious malfunctions of electrical devices and equipment to improve the quality and reliability of operation.

In general, electrical connectors can be divided into two types, one is that the plug is connected to the end of the cable and covers the socket of the connector, and the other is to connect the receptacle to the cable or fix it. Go into the connector pin of the device. The insert and the receptacle are coupled to each other to establish an electrical connection between the connector slot and the interior of the lead to connect two cables or cables to the device. The following describes establishing an electrical connection between the insert and the receptacle. Existing technology:

The new patent number 333796: Electrical Connector, which was applied for by the Intellectual Property Office of Korea, proposes a structure to solve this problem. It uses a nut-like coupler and bolted inserts and receptacles. This configuration does not easily establish a connection or disconnect because it requires the user to buckle or untie the connector, and this can result in a shutdown or other safety incident.

The technology also proposes a sliding coupler that provides more than one ball (or bump) on the receptacle, such that the receptacle and insert can be more easily connected or by clicking the ball into the cavities or pulls The linker is connected. However, the sliding connector can be easily pressed and pulled out by an external force. Especially when the working space is too narrow, it can easily connect the plug to the housing, but it is difficult to disconnect it.

In addition, Korean Patent Publication No. 10-2005-77572 (published on August 3, 2005) mentions that a narrow space requires a lot of time to process the plug-in connected to the housing and suggests a control cover, which can It is bounced in to get the plug in place to complete the electrical connection and pull back to a wider hole to release the lock to make it easier to break. This design is used to increase the efficiency of use and the stability of the connection.

However, this technology is only suitable for single-wire coaxial cables and plug-ins that cannot easily accommodate different designs, including multi-cable connectors. In addition, the coaxial cable is exposed on one side of the insert and the cover is easily detached by an external force, causing electrical equipment to leak or cause serious malfunction.

After a long period of research and development, the inventors have finally developed such a multi-cable electrical connector that can establish a fast connection and disconnection to prevent electric shock to improve the reliability of electrical equipment.

The main object of the present invention is to design a connector that can be easily connected and disconnected between the insert and the receptacle, even in a narrow space, or a narrow working space, or when the receptacle is secured to the device. This design also ensures a stable electrical connection that prevents electrical shock and improves the reliability of electrical equipment by establishing fast connections and disconnections.

Another object of the present invention is to protect the connection of the card to the cable to prevent the cable plug from falling off or bending to prevent serious malfunction of the electrical device, and to improve the quality and reliability of the operation.

Based on the above technical goals, such a design proposes a coupling achieved by a spring and is used by a spring to bring the insert into place to connect with the receptacle. To disconnect, this coupling can be pulled back out of the receptacle and can be easily disconnected from the receptacle. This design makes it very easy to connect and disconnect the insert and the receptacle. In addition, the spring behind the insert protects the cable that is connected to the rear and plugged into the insert.

The present invention is designed to facilitate the connection and disconnection of the insert and the receptacle between the ions, even in a narrow space, in a narrow working space, or in a device on the container that is fixed, a combination of stable power protection Protect plug-ins and cables from the effects of skin stripping or bending and prevent possible electrical shocks from improving electrical appliances. Therefore, the present invention can prevent serious malfunctions of electrical equipment and improve the quality and reliability of operation.

In order to enable the examiner to more easily understand the features of the multi-cable electrical connector of the present invention, reference is made to the following figures and an embodiment of the multi-cable electrical connector of the present invention.

The basic structure of the present invention comprises an insert which fixes a fine package insert by a plurality of connection terminals, the plurality of connection terminals using a first spring and a second spring and a wire spring to protect the multi-cable at the rear end, and a The accommodating portion has a plurality of slots, and the slots can be used to cater to the connecting terminals when the plug is connected.

The optimal configuration comprises three parts: a first part having a fine package insert, comprising a first insulator for fixing a plurality of connection terminals and a second insulator behind the first insulator, the first spring being used for a pusher insert and a guide plate for supporting the first spring, the latch for covering the guide plate, the second spring outside the latch, and the coupling nut for fixing the second spring and the lock The second rear nut portion has an open multi-cable connected to the connection terminal and a wire spring for supporting the outer surface of the multi-cable; and a third plug-in (having a medium-indirect point connection coupling nut and a rear nut portion) And a housing portion (having a cell housing portion for covering a plurality of fixing slots, the fixing slots being connected to the connection terminals via the first insulator, the second insulator and the fixing nut, the fixing nuts being used for Fix the screws outside the cell housing).

Next, an application example of the present invention will be described. Referring to Figure 1, the present invention includes an insert for establishing a multi-cable electrical connection and a receptacle for attachment to a printed circuit board of a workbench or device to be connected or disconnected.

Figure 1 shows a view of the receptacle 100 of the present invention. As shown, the receptacle 100 includes a coupling nut 110, an intermediate connector 150, and a rear nut 160. The coupling nut 110 is designed to be coupled to the receiving portion 200 and includes a fine package insert 120, a guiding plate 130, a latch 140 (for covering the guiding plate 130), a first spring for pushing the sub-card 120, and As a second spring 146 that latches the back.

The cell insert 120 is fixed after it is combined with the first insulator 122 having the connection terminal 121 inside and the second insulator attached to the first insulator 122.

The O-ring 121a is inserted into each of the connection terminals as shown in FIGS. 5 and 8. The O-ring 121a can completely prevent impurities and water from entering the connection terminal 121, thereby ensuring the safety and waterproofness of the connection terminal 121a, as well as preventing malfunction and cost of repair.

As shown in FIG. 5, the cell insert has a plurality of projections 127 on the outer surface for guiding the connection to the receptacle 200. It forms a short projection 125 at the bottom for attachment to the body 128, a latch on the outside and a gear 129 on the surface.

A plurality of connection terminals 121 and the first insulator 122 and the second insulator 123 penetrate therethrough. The end of the connection terminal 121 is connected to the multi-cable and the front end is connected to the housing to achieve the object of the present invention.

A spacer 124 is interposed between the first insulator 122 and the second insulator 123. In addition, the first spring 126 is inserted into the bottom of the scalloped guide plate 130 at the front end of the sub-card 120 at the center of the sub-card 120 to elastically support both sides. The latch 140 contacts the outer surface of the guide plate 130 and the inner surface of the coupling nut 110.

The latch 140 forms a projection 141 at the top end of the lower body 128 of the sub-card 120 and extends there. A plurality of elastomers 142 are inserted into the spaced opening 143 and the side of the corresponding circumferential tongue 144 that has formed the elastomer 142.

The corresponding coupling nut portion 110 is in contact with the latch 140. The coupling nut portion 110 forms a cavity 112 for the second spring 146 to be placed and compressed to cover the elastomer of the latch 140.

The cavity 172 constitutes a guide 111 inside the coupling nut 110 and an inclined tapered surface 111a on the side of the guide 111. Therefore, the connection between the coupling nut 110 and the latch 140 is revealed when the receiving portion is connected, as shown in FIG. 8 or FIG. When the guide plate 130 is placed upside down on the compressed first spring 126, pushing the latched elastomer, the outer surface of the tongue 144 of the elastomer 142 remains with the tapered surface 111a of the coupling nut portion 110. Tightening.

The guide member 111 and the tapered surface 111a of the coupling nut portion 110 are created to guide the tongue 144 of the elastic body 142 of the latch 140. When the insert 100 is coupled to the receptacle 200, the receptacle 200 presses the guide plate 130 and the first spring 126 thereunder as it is pushed into the insert 100. After the elastic body 142 of the latch 140 is pushed to the side so that the elastic body 142 faces the inside, the top of the guide plate 130 is released.

Thus, the second spring 146, which is supported by the apex of the projection 141 on the latch 140, and the cavity 112 that is inserted into the interior of the coupling nut 110, is released to push out the coupling nut portion 110 to connect the receptacle 200 to The rails 230 are joined. The intermediate connector 150 of the present invention is attached to the rear of the coupling nut 110.

As shown in FIG. 6, the intermediate connecting body 150 is a hollow portion having a nut portion above and a protruding portion at the bottom. Below the nut portion is a recess for securing the O-ring 154, and a cable wrap 152 and a washer 153 are inserted into the bottom to connect with the rear nut portion 160.

The cable cover 152 is made of synthetic resin and forms a gear 152a to fit the gear 129 of the sub-card 120. A plurality of spaced-apart elastic openings 152b are formed behind the cable cover 152, and the inside of the elastic opening 152b forms an uneven surface to securely fix the multi-cable 300 therein. The insulating sleeve 156 and the retaining sleeve 157 are also sequentially inserted into the cable sheath 152.

The rear wheel nut portion 160 is coupled to the bolt at the bottom of the intermediate connector 150 to guide the multi-cable 300. The nut portion is built in the middle and the short protrusion 161 is formed at the bottom to hold the wire spring 162 therein. Further, the sleeve 163 is inserted into the top of the short projection 161 and the outer cover of the top of the sleeve 163. The sleeve 163 is made of bronze.

Further, if the tip end of the wire spring 162 has a slightly larger diameter and is supported by the short convex body 161, it is inserted by the top of the rear nut portion 160, so that the large diameter of its tip end can be supported by the short convex body 161. Therefore, the wire spring 162 will stay even if it is pulled to the bottom of the rear wheel nut portion 160. A wire spring 162 is inserted into the interior above the rear wheel nut portion 160 to protrude from the bottom of the rear nut portion 160 as shown. This is to prevent the multi-cable 300 from being bent at the rear nut portion 160 when it is inserted into the insert 100, thus preventing leakage due to bending or detachment of the multiple cables and subsequent disaster accidents/faults.

Another part of the invention is the receptacle 200 to which the insert 100 is attached. The receptacle 200 is connected to a printed circuit board or other cable to establish an electrical connection of the multiple cables 300 that are connected to the insert 100. The composition of the housing portion 200 is as shown later, and please refer to FIGS. 2, 4, and 9.

In detail, the receiving portion 200 constitutes a bolt at the top for connection with a fixing nut 220, which can be used to support an O-ring 221 . An engagement rail 230 having a plurality of vertical guide rails 240 is disposed at the bottom of the housing portion 200. Further, the first insulator 250 and the second insulator 260 are placed in the accommodating portion 200, and a plurality of slots 280 are inserted through the two insulators 250, 260 to be connected to the connection terminals 121 in the card 100. Further, the gasket 270 is also inserted into the first insulator 250 and the second insulator 260. The engagement rail 230 described above can be coupled to the tongue 144 of the elastomer 142 of the latch 140 described above.

When the mechanism of the receiving portion 200 is inserted into the coupling nut portion 110 of the insert 100 to establish an electrical connection, the projection on the outer surface of the sub-card 120 in the insert 110 is inserted through the guide rail 240 of the receiving portion 200. This establishes an electrical connection between the plug-in 100 and the receptacle 200 and connects each of the connection terminals to the slots 121,128. In order to more accurately connect the insert 100 and the accommodating portion 200 via a combination of the projection 127 and the guide rail 240. By distinguishing the distance between each of the protrusions 127 and forming a corresponding guide rail inside the receiving portion 200, the plug-in 100 and the receiving portion 200 can establish a connection between the corresponding end points and the slots (127 and 128). .

The fixing nut 220 is coupled to the bolt on the receiving portion 220, and the bolt is used to secure the receiving portion 200 to the printed circuit board. For example, a slot 280 of the receptacle is attached to the circuit board of the device to connect the raised receptacle to the insert 100. After the receiving portion is inserted into the device and secured with the printed circuit board, the fastening nut 220 is completely disengaged from the receiving portion 200 and fixed again, and the plug-in connection is completed. In this case, the O-ring 221 is in contact with the inside of the equipment frame and is hermetically connected. Additionally, the rear nut portion 160 can form an L-shaped elbow as shown in FIG.

The electrical connection state and process between the plug-in 100 and the accommodating portion 200 can be explained as follows. Please refer to FIG. 10 to FIG. 13 at the same time. When the accommodating portion 200 is inserted into the coupling nut portion of the insert 100, the projection on the outer surface of the cell accommodating portion 120 in the accommodating portion 100 is inserted along the guide rail 240 of the accommodating portion 200 to establish the interleave 100 and the accommodating portion 200. Electrical connection.

As shown in FIG. 10, when the accommodating portion 200 is joined, the guide plate 130 is placed upward on the compressed first spring 126 to urge the elastic body 142 of the latch 140. When the insert 100 is pushed toward the accommodating portion 200, the outer surface of the above-mentioned tongue 144 of the elastic body 142 is kept tight with the tapered surface 111a of the coupling nut portion 110, and the portion of the accommodating portion 200 is pressed against the guide plate 130 and The first spring 126 is located below it. At the same time, the top of the guide plate 130 is released after pushing the elastic body 142 of the latch 140 to one side, and the elastic body 142 faces inward. Thus, the second spring 146 is supported by the top of the projection 141 on the latch 140 and is inserted into the cavity 112 of the interior of the coupling nut portion 110 to be released to extend the coupling nut portion 110 to The receptacle 200 can be connected to the joint rail 230. This establishes an electrical connection between the socket 280 of the receptacle and the terminal 212 of the card 100 that is connected to the multi-cable 300.

When the insert 100 is disconnected from the receptacle 200, the coupling nut portion 100 of the insert 100 is pushed back to compress the second spring 146 to release the tongue 144 on the latch 140 that is coupled to the connection slot of the receptacle 200. To allow the insert 100 and the receptacle 200 to be released and separated.

The object of the invention is to make the connection and disconnection between the insert and the receptacle easy and fast, even in a narrow space, under a narrow working space, or when the receptacle is fixed to the device. It can prevent electric shock and prevent serious malfunctions, improve the quality and reliability of operation, and make it suitable for various industrial uses.

The above description is only intended to explain the present invention in detail by the preferred embodiments, however, any modifications and variations to the embodiment, such as the materials of the first spring, the second spring, and the wire spring, the first spring, the second spring, and The change of the wire spring to the elastic member and the material and size of the elastic container body, the material and shape of the insulating sleeve, and the like are not departing from the spirit and scope of the present invention.

From the above detailed description, those skilled in the art can understand that the present invention can achieve the foregoing objects, and has already met the requirements of the Patent Law, and has filed an invention patent application according to law.

100. . . Housing

110. . . Coupling nut

111. . . Guide

111a. . . tapered surface

112. . . Cavity

120. . . Sub-plugin

121. . . Connection terminal

122. . . First insulator

123. . . Second insulator

124. . . Gasket

125. . . Short convex

126. . . First spring

127. . . Protruding

128. . . main body

129. . . Protruding

130. . . Guide plate

140. . . Socket plug

141. . . Protrusion

142. . . Elastomer

143. . . Opening

144. . . Tongue

145. . . Lower body

146. . . Second spring

150. . . Intermediate connector

151. . . groove

152. . . Cable coating

152a. . . gear

152b. . . Elastic opening

152c. . . Uneven

153. . . washer

154. . . O-ring

160. . . Rear nut

161. . . Short convex

162. . . Wire spring

163. . . Sleeve

164. . . Wrap

210. . . Cell housing

221. . . O-ring

240. . . guide

260. . . Second insulator

280. . . Connection terminal

200. . . Housing connector

220. . . Fixed nut

230. . . Joint rail

250. . . First insulator

270. . . Gasket

300. . . Multiple cable

Figure 1 is a view of the multi-cable electrical connector when the plug and the receiving portion are connected to each other.

Figure 2 is a view of the multi-cable electrical connector when the plug and the receiving portion are disconnected from each other

Figure 3 is an exploded view of the plugin

Figure 4 is an exploded view of the housing

Figure 5 is an exploded view of the coupling nut of the electrical connector for multiple cables

Figure 6 is an exploded view of the intermediate connector of the multi-cable electrical connector

Figure 7 is an exploded view of the nut after the multi-cable electrical connector

Figure 8 is a cross-sectional view of the plug-in

Figure 9 is a cross-sectional view of the housing

Figure 10 is a cross-sectional view of the insert before it is connected to the housing.

Figure 11 is a cross-sectional view of the receiving portion pushing the guide plate as it is pushed into the insert and the latch is internally guided with the first spring.

Figure 12 is a cross-sectional view of the coupling nut of the insert pushed forward by the second spring

Figure 13 is a cross-sectional view of the plug-in and the receiving portion of Figure 12

Figure 14 is a view of the rear nut being attached to the L-shaped elbow.

100. . . Housing

110. . . Coupling nut

150. . . Intermediate connector

160. . . Rear nut

162. . . Wire spring

200. . . Housing connector

300. . . Multiple cable

Claims (9)

A multi-cable electrical connector having an insert and a receiving portion for connecting or disconnecting a plurality of cables, the method comprising: a first portion having a fine package insert, the first insulator including a plurality of connecting terminals; a second insulator behind the first insulator, which can be used to fix a plurality of sub-inserts of the connection terminals, including a gasket between the first insulator and the second insulator, and a first spring for pushing the fine package insert And a guiding plate for supporting the first spring, the latch for covering the guiding plate, the second spring outside the latch, and the coupling nut for fixing the second spring and the latching; The rear nut portion has an open multi-cable connected to the connection terminal and a wire spring for supporting the outer surface of the multi-cable; and a third plug (having a medium-indirect point connection coupling nut and a rear nut portion) and housing a portion (having a cell accommodating portion for covering a plurality of fixing grooves, the fixing grooves and the connecting terminal being connected via the first insulator, the second insulator and the fixing nut, wherein the fixing nut is used for fixing the cell volume An outer portion of the screw). The multi-cable electrical connector of claim 1, wherein the cell insert has a plurality of protrusions on the outer surface for guiding to the receiving portion, and a short protrusion is formed at the bottom to connect to the main body. There are latches on the outside and gears on the surface. The multi-cable electrical connector according to claim 1, wherein the top end of the lower body latched to the sub-card constitutes a convex body and extends thereto, and the plurality of elastic bodies are inserted into the opening of the interval and correspond to The surrounding tongue has formed one side of the elastomer. The multi-cable electrical connector of claim 1, wherein the guide member inside the coupling nut and the inclined tapered surface on one side of the guide member guide the second spring to be inserted. The multi-cable electrical connector according to claim 1, wherein the third plug-in is included The indirect point is a hollow portion with a nut portion at the top and a convex portion at the bottom. A recess is provided below the nut portion for fixing the O-ring, and the cable covering and the gasket are inserted into the bottom. The multi-cable electrical connector according to claim 5, wherein the cable covering is made of synthetic resin, which forms a gear, and a plurality of elastic openings spaced apart, and the inside of the elastic opening is uneven In the meantime, the insulating sleeve and the fixing sleeve are also sequentially inserted into the cable covering. The multi-cable electrical connector of claim 1, wherein the top end of the wire spring has a slightly larger diameter with respect to the middle end and the bottom end. The multi-cable electrical connector of claim 1, wherein the receiving portion forms a bolt at the top for connecting with a fixing nut, and the fixing nut can be used for supporting an O-ring, and An engaging rail having a plurality of vertical guiding rails is disposed at the bottom. The multi-cable electrical connector of claim 1, wherein the rear nut portion is formed in an elbow shape.