TW202339373A - Sparkless safety electrical connentor - Google Patents

Abstract

This present invention is related to a sparkless safety electrical connector and has a male connector, a push-type detecting assembly and an outer molding. The push-type detecting assembly is mounted outside the male connector and the outer molding partially encapsulates the male connector and the push-type detecting assembly. The push-type detecting assembly has a detecting element and two conductive elements, two elastic plates of the detecting elements are exposed from the outer molding and respectively overlap but keep a distance with the two conductive elements electrically connect to a circuit board inside the male connector. When a user holds the male connector to unplug and his or her fingers press the two exposed elastic plates, the detecting element, the two conductive elements and the circuit board form a detecting circuit loop. Accordingly, the circuit board detects the user's unplug action and may generate a power outage signal to system power source. Therefore, the system power source is interrupted before the male connector has been unplugged and a spark is not occurred.

Description

Spark-free safety electrical connectors

The present invention relates to an electrical connector, in particular to a non-sparking safety electrical connector.

In addition to data transmission, current electrical connectors also support power supply functions. Taking the Type-C male connector as an example, the CC terminal is used as a power supply detection terminal; and because the size and position of the multiple terminals of the electrical connector vary Standard specifications, in order to consider the safety of power supply, the front end of the CC terminal will be shorter than the front end of the power terminal (VBUS and GND), so that the power terminals of the male and female connectors contact first, and then the corresponding CC of the male and female connectors The terminals will make contact; if the male electrical connector is the power supply side, the CC terminal will detect contact with the CC terminal of the female connector before outputting power to the power terminals (VBUS and GND). On the contrary, if the male connector is pulled out from the female connector, the corresponding CC terminals of the male and female connectors will be disconnected before the power terminals. Therefore, after detecting the disconnection through the CC terminals, the output power will be stopped first. The power terminals, that is, the power terminals of the male and female connectors, must interrupt the power supply before disconnecting to ensure the safety of the power supply.

However, since the distance between the front end of the current CC terminal and the front end of the power terminal is not long enough, during the pull-out stroke of the male connector, the corresponding CC terminals of the male and female connectors and the power terminals of the male and female connectors are disconnected successively. The contact time is too short, and there is no time to interrupt the power output before the power terminals of the male and female connectors disconnect, causing the power terminals of the male and female connectors to generate sparks (arcs) at the moment of disconnection, and the sparks Oxidation will occur to increase the impedance or cause the colloid to melt and cause damage to the electrical connector; therefore, it is necessary to improve the existing electrical connector to avoid the generation of sparks when the male connector is pulled out.

In view of the fact that the above-mentioned electrical connector is prone to generate sparks and cause damage when being pulled out, the main purpose of the present invention is to provide a spark-free safe electrical connector that can detect the pull-out action for subsequent applications in which the power is cut off in time to avoid pull-out. Sparks are produced when exiting.

In order to achieve the above object, the main technical means used in the present invention are that the above-mentioned non-sparking safety electrical connector includes: A male connector includes a housing, a circuit board and a plug connector; wherein the plug connector is fixed in the housing and protrudes from the front opening of the housing, and is electrically connected to the The circuit board inside the housing; A push-type detection component is provided on the outside of the housing of the male connector and includes: A detection component is electrically insulated and fixed on the housing of the male connector, and includes an integrally formed connecting portion and two elastic pieces, the two elastic pieces are respectively located on two opposite sides of the housing; and Two conductive members are electrically insulated and disposed on the two opposite sides of the housing of the male connector, and a first end of each conductive member overlaps and maintains a distance from the detection member, and a first end of the conductive member overlaps with the detection member and maintains a distance. Two ends are electrically connected to the circuit board of the male connector; wherein the second end is in selective contact with the corresponding spring piece of the detection component; and An outer mold glue partially covers the male connector and the push-type detection component, so that the plug connector of the male connector and the elastic pieces of the detection component are exposed.

As can be seen from the above description, the non-sparking safety electrical connector of the present invention is mainly provided with a push-type detection component outside the male connector, and the two elastic pieces of the detection component of the push-type detection component are exposed from the outer mold colloid. , and overlap but maintain a distance from the conductive member electrically connected to the circuit board; therefore, when the user wants to pull out the male connector from the electronic device, he can press the two elastic pieces exposed on the outer mold glue , the two elastic pieces will contact the two conductive parts. At this time, a detection loop is formed between the detection part, the two conductive parts and the circuit board, so the circuit board in the male connector can detect the electrical The unplugging action of the connector; therefore, the circuit board can further use this detection signal as a power-off signal to notify the system power supply to cut off the power as soon as possible to ensure that the male connector has stopped communicating with the system when it is unplugged from the electronic device. The power supply is electrically connected to avoid sparks when unplugging.

The present invention is an improved non-sparking safety electrical connector. The technical contents of the present invention will be described in detail below using multiple embodiments and drawings.

First, please refer to Figure 1 and Figure 2, which is a first embodiment of a non-sparking safety electrical connector of the present invention. The non-sparking safety electrical connector includes a male connector 10, a push-type detection component 20 and a External mold colloid 30.

Please refer to Figures 2 and 3 at the same time. The above-mentioned male connector 10 includes a housing 11, a circuit board 12 and a plug connector 13. The housing 11 has a front opening 111 and two opposite side surfaces 112. In this article, In the embodiment, the housing 11 is a metal housing, but is not limited thereto; the circuit board 12 is fixed in the housing 11 and further includes two protruding ends 121 and a front end 123, wherein the two protruding ends 121 and a front end 123. The ends 121 respectively protrude from the rear half of the two opposite sides 112 of the housing 11, and are respectively provided with a pad 122. In this embodiment, as shown in FIG. 2, the front end 123 includes a plurality of terminal pads arranged side by side. 124; The plug connector 13 is fixed in the housing 11 and protrudes from the front opening 111 of the housing 11, and is electrically connected to the circuit board 12 accommodated in the housing 11.

Please continue to refer to Figures 2 and 3 at the same time. In this embodiment, as shown in Figure 3, the plug connector 13 of the above-mentioned male connector 10 is used to insert into the corresponding female connector (not shown in the figure). It includes a shell 131, a terminal base 132 and a plurality of terminals 133, wherein a rear portion 1311 of the shell 131 is disposed in the housing 11 and is snap-fastened to the front end 123 of the circuit board 12; the terminal base 132 They are arranged inside the housing 131. In this embodiment, the terminals 133 are arranged side by side on the terminal base 132 and extend backward to electrically connect to the corresponding terminal pads 124 of the circuit board 12 respectively; in this way, the housing 131 A front portion 1312 is exposed outside the front opening 111 of the housing 11 to be matched and inserted into its corresponding female connector. The plug connector 13 can use USB Type-C, USB 3.0 or USB 2.0 as its standard interface.

Please refer to Figure 3, Figure 4 and Figure 5 at the same time. The above-mentioned push-type detection component 20 is disposed outside the housing 11 of the male connector 10 and includes a detection component 21 and two conductive components 22, wherein The detection component 21 is electrically insulated and fixed on the housing 11 of the male connector 10, and is in a "ℇ" shape as shown in Figure 4, that is, it includes an integrally formed connecting part 211 and two elastic pieces. 212, the two elastic pieces 212 are respectively located on the two opposite sides 112 of the housing 11; in this embodiment, as shown in Figures 2 and 5, the connecting portion 211 further penetrates up and down to form an opening 213; the two conductive The components 22 are electrically insulated and disposed on the two opposite sides 112 of the housing 11 of the male connector 10. A first end 221 of each conductive component 22 overlaps and maintains a distance from the detection component 21. A second end 222 is electrically connected to the circuit board 12 of the male connector 10, that is, to the pad 122 on the protruding end 121 of the circuit board 12, wherein the second end 222 is with The corresponding elastic pieces 212 of the detection member 21 are selectively contacted; in this embodiment, as shown in FIG. 3 , each conductive member 22 is roughly in a "Z" shape, that is, the middle part of the conductive member 22 faces outward first. Bend and then bend forward, but it is not limited to this; and in this embodiment, as shown in FIG. 4 , the inner side of each elastic piece 212 of the detection member 21 corresponds to the conductive member 22 The first end 221 is provided with a protrusion 214 to shorten the distance between the elastic piece 212 and the corresponding first end 221 .

As shown in Figures 4 and 5, in this embodiment, the push-type detection component 20 further includes an insulating base 23, which is disposed on the housing 11 of the male connector 10, the push-type detection component 20, and the housing 11 of the male connector 10. Between the detection element 21 and the two conductive elements 22 of the component 20, the detection element 21 is in the same "U" shape, as shown in Figure 4, which includes a horizontal part 231 and two opposite side walls 232. , wherein the horizontal part 231 is disposed on the top surface of the housing 11 and matches the opening 213 of the connecting part 211. The top surface of the horizontal part 231 is formed with a protruding block upward corresponding to the opening 213 of the connecting part 211. 233, and passes through the opening 213. Therefore, the protruding block 233 of the insulating base 23 can increase the stability of the combination between the insulating base 23 and the detection component 21; the two opposite side walls 232 are connected to the horizontal The portion 231 is integrally formed and is respectively provided on the front half of the two opposite sides 112 of the housing 11; in this embodiment, the insulating base body 23 further includes two receiving slots 234 and two side openings 235. Slots 234 are formed in the two opposite side walls 232 of the insulating base 23 for the first ends 221 of the two conductive members 22 to penetrate into the corresponding two accommodating slots 234 from back to front respectively; as shown in Figure 2 As shown in FIG. 4 , the two side openings 235 are respectively formed on the outer surfaces of the two opposite side walls 232 of the insulating base body 23 to communicate with the corresponding two receiving grooves 234 respectively, wherein the detection member 21 The two elastic pieces 212 respectively correspond to the two side openings 235 to selectively contact the first end 221 of the conductive member 22 .

Please refer to Figure 1 again. The above-mentioned outer mold glue 30 partially covers the male connector 10 and the push-type detection component 20, that is, the front portion 1312 of the housing 131 of the male connector 10 and the push-type detection component 20. Each elastic piece 212 of the detection component 20 is exposed from the outer mold glue 30 .

The following is a further description of the specific implementation of detecting a pull-out action and powering off the electrical connector according to the first embodiment of the present invention. First, please refer to FIG. 6 . The electrical connector in the figure is in a power-on state. The protrusions 214 of each elastic piece 212 maintain a distance from the first end 221 of each conductive member 22 .

Please refer to Figure 7 together with Figure 4. As shown in Figures 4 and 7, when the user grips the outer mold glue 30 of the non-sparking safety electrical connector of the present invention with his fingers, his fingers can easily align and press the exposed The outer mold glue 30 and the two elastic pieces 212, the protrusions 214 of each elastic piece 212 of the push-type detection component 20 will contact the corresponding first ends 221 of the two conductive members 22. At this time, the detector A detection loop is formed between the test piece 21, the two conductive pieces 22 and the circuit board 12, so that the circuit board 12 detects the pull-out action of the electrical connector, and further notifies the system of the detection signal as a power-off signal. The power supply is cut off; therefore, the electrical connector shown in Figure 7 can be in a power-off state before being pulled out, so that the plug connector 13 of the male connector 10 will not be connected when the corresponding female connector is pulled out. Sparks are generated to avoid damage to the spark-free safety electrical connector of the present invention.

Please refer to Figure 8 in conjunction with Figure 4, which is a second embodiment of a non-sparking safe electrical connector of the present invention. The non-sparking safe electrical connector is connected to the non-sparking safe electrical connector of the first embodiment of the present invention as shown in Figure 4. The devices are basically the same, but the difference is that an insulating cover 24 is further provided outside each elastic piece 212 of the detection component 21 to cover each elastic piece 212 exposed on the outer mold glue 30 so that it is not in direct contact with the user. fingers of the user to further ensure safety during use.

Please refer to Figure 9 and Figure 10 together with Figure 3, which is a third embodiment of the non-sparking safety electrical connector of the present invention. The non-sparking safe electrical connector is similar to the non-sparking safe electrical connector of the first embodiment of the present invention as shown in Figure 3. Spark safety electrical connectors are basically the same, but the difference is that the push-type detection component 20 can slide relative to the housing 11 and the outer mold glue 30 of the male connector 10, and the conductive parts 22 of each The first end 221 enters or moves away from the corresponding receiving groove 234 as the insulating base body 23 slides, so as to selectively overlap with the detection component 21; as shown in Figure 9, in this embodiment, the pressing The detection component 20 is slid forward to the front section of the housing 11, so that each elastic piece 212 is away from the first end 221 of the corresponding conductive member 22, and is staggered and does not overlap with it. Therefore, the detection component 20 is The protrusions 214 of the elastic pieces 212 of the test piece 21 do not contact the first ends 221 of the conductive members 22 .

As shown in FIG. 10 , in this embodiment, when the user wants to pull out the non-sparking safety electrical connector and touches the outer mold glue 30 with his fingers, the two exposed elastic pieces 212 can be moved backward to make the pressing The push-type detection component 20 moves backward until the two elastic pieces 212 provided on the push-type detection component 20 contact the corresponding first end 221 of the conductive member 22. At this time, each first end 221 is also fully inserted. in the corresponding receiving groove 234 of the insulating base 23; in this way, a detection loop is formed between the detection component 21, the two conductive components 22 and the circuit board 12, so that the circuit board 12 detects the electrical connector. Pull out action.

It can be seen from the above description that the non-sparking safety electrical connector of the present invention mainly fixes the push-type detection component on the outside of the housing of the male connector, and the two elastic pieces of the detection component of the push-type detection component are released from the The outer mold colloid is exposed and overlaps but maintains a distance from the conductive component electrically connected to the circuit board; in addition, the push-type detection component can also be made to slide relative to the housing and the outer mold colloid, and the conductive components are The first end follows the sliding insulating base body and enters or moves away from the corresponding receiving slot; therefore, when the user wants to pull out the male connector from the electronic device, he can press or push the exposed On the two elastic pieces of the outer mold colloid, the two elastic pieces are in contact with the two conductive parts. At this time, a detection loop is formed between the detection part, the two conductive parts and the circuit board, so that the inside of the male connector The circuit board detects the pull-out action of the electrical connector and notifies the system power supply to cut off the power as soon as possible to ensure that the male connector is not electrically connected to the system power supply when it is pulled out from the electronic device, and eliminates sparks generated during the pull-out. Avoid damaging this electrical connector.

The above are only embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed in the embodiments above, they are not used to limit the present invention. Anyone with ordinary knowledge in the technical field, Without departing from the scope of the technical solution of the present invention, the technical content disclosed above can be used to make some changes or modifications to equivalent embodiments with equivalent changes. Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

10:Pale connector 11: Shell 111: Front opening 112:Side 12:Circuit board 121: Protruding end 122: Pad 123:Front end 124:Terminal pad 13:Plug connector 131: Shell 1311:rear 1312:Front 132:Terminal block 133:Terminal 20: Push detection component 21:Detection piece 211:Connection Department 212:Shrapnel 213:Open your mouth 214:Bump 22: Conductive parts 221:First end 222:Second end 23: Insulating base body 231: Horizontal part 232:Side wall 233:Protruding block 234: Accommodation tank 235:Side opening 24:Insulation cover 30:Outer mold colloid

Figure 1: A perspective view of the first embodiment of the non-sparking safety electrical connector of the present invention. Figure 2: A perspective exploded view of the first embodiment of the non-sparking safety electrical connector of the present invention. Figure 3: A cross-sectional view along the line A-A of Figure 1. Figure 4: A cross-sectional view along the line B-B of Figure 1. Figure 5: A partial perspective view of the first embodiment of the non-sparking safety electrical connector of the present invention. Figure 6: A cross-sectional view along the line C-C of Figure 5. Figure 7: A partial cross-sectional view of the first embodiment of the non-sparking safety electrical connector of the present invention in a power-off state. Figure 8: A partial cross-sectional view of the second embodiment of the non-sparking safety electrical connector of the present invention. Figure 9: A partial cross-sectional view of the third embodiment of the non-sparking safety electrical connector of the present invention. Figure 10: A partial cross-sectional view of the third embodiment of the non-sparking safety electrical connector of the present invention in a power-off state.

10:Pale connector

11: Shell

111: Front opening

112:Side

12:Circuit board

121: Protruding end

122: Pad

123:Front end

13:Plug connector

131: Shell

1311:rear

1312:Front

132:Terminal block

133:Terminal

20: Push detection component

21:Detection piece

212:Shrapnel

22: Conductive parts

221:First end

222:Second end

23: Insulating base body

232:Side wall

234: Accommodation tank

30:Outer mold colloid

Claims (10)

A spark-free safety electrical connector including: A male connector includes a housing, a circuit board and a plug connector; wherein the plug connector is fixed in the housing, protrudes from a front opening of the housing, and is electrically connected to the housing. the circuit board in the housing; A push-type detection component is provided on the outside of the housing of the male connector and includes: A detection component is electrically insulated and fixed on the housing of the male connector, and includes an integrally formed connecting portion and two elastic pieces, the two elastic pieces are respectively located on two opposite sides of the housing; and Two conductive members are electrically insulated and disposed on the two opposite sides of the housing of the male connector, and a first end of each conductive member overlaps and maintains a distance from the detection member, and a first end of the conductive member overlaps with the detection member and maintains a distance. Two ends are electrically connected to the circuit board of the male connector; wherein the second end is in selective contact with the corresponding spring piece of the detection component; and An outer mold glue partially covers the male connector and the push-type detection component, so that the plug connector of the male connector and the elastic pieces of the detection component are exposed. The non-sparking safety electrical connector as described in claim 1, wherein the push-type detection component further includes: An insulating base body is disposed between the housing of the male connector, the detection component of the push-type detection component and the two conductive components, and includes: A horizontal part is provided on the top surface of the housing; and The two opposite side walls are integrally formed with the horizontal portion and are respectively provided on the front half of the two opposite side surfaces of the housing. The non-sparking safety electrical connector as described in claim 2, wherein the insulating seat system further includes: Two accommodating grooves are respectively formed in the two opposite side walls for the first ends of the two conductive members to penetrate into the corresponding two accommodating grooves; and Two side openings are respectively formed on the outer surfaces of the two opposite side walls to communicate with the two receiving grooves respectively; wherein the two elastic pieces of the detection component respectively correspond to the two side openings. The non-sparking safety electrical connector as described in claim 3, wherein the circuit board further includes two protruding ends, which respectively protrude from the rear half of the two opposite sides of the housing, and are respectively provided with a pad for electrical connection. The first end of each conductive member. A non-sparking safe electrical connector as claimed in claim 4, wherein: The shell system is a metal shell; A front end of the circuit board is provided with a plurality of terminal pads arranged side by side; and The plug connector contains: A casing, a rear portion of which is accommodated in the casing and fixed to the front end of the circuit board, and a front portion of which is exposed outside the front end opening of the casing; A terminal block is provided on the inside of the housing; and A plurality of terminals are arranged side by side on the terminal base and extend backward to electrically connect to corresponding terminal pads of the circuit board. The non-sparking safety electrical connector of claim 5, wherein the connecting portion of the detection member of the push-type detection component is further formed with an opening. A non-sparking safe electrical connector as claimed in claim 6, wherein: The horizontal part of the insulating base body matches the opening of the connecting part, and the top surface of the horizontal part forms a protruding block upward corresponding to the opening of the connecting part and passes through the opening. A non-sparking safe electrical connector as claimed in claim 7, wherein: The push-type detection component is slid relative to the outside of the housing of the male connector and the outer mold colloid; and The first end of each conductive member enters or moves away from its corresponding receiving groove to selectively overlap with the detection member. The non-sparking safety electrical connector according to any one of claims 1 to 8 further forms a protrusion on the inner surface of each elastic piece of the detection component toward the first end of each conductive component. The non-sparking safety electrical connector described in claim 9 is further provided with an insulating cover outside each elastic piece of the detection component to cover each elastic piece exposed on the outer mold colloid.

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