TWM593677U - Electrical connection socket - Google Patents

Abstract

An electrical connection socket for inserting an electrical connection plug includes a base, a circuit board, an electronic component, at least one conductive member, and a pusher. The base body has a slot, and the slot is used for inserting a power connection plug. The circuit board is fixed in the slot. The electronic component is arranged in the slot. The conductive part is located in the slot. The conductive member has a fixed end and a swinging end opposite, the fixed end is electrically connected to the circuit board, and the swinging end can swing relative to the circuit board. The pushing member is movably located in the slot and leans against at least one conductive member. The pushing member is used for being pushed by the electrical connection plug, so that the swinging end of the at least one conductive member is electrically connected or interrupted to the electronic component.

Description

Electrical connection socket

The present invention relates to an electrical connection socket, especially an electrical connection socket with a pushing piece or an electrical insulation piece.

The well-known Power over Ethernet (PoE for short) is a technology that can transmit power and data to devices through twisted pair, RJ-45 plugs, and sockets in Ethernet. Since the electronic device can be powered by the Ethernet, the electronic device can be used without an additional power socket, and the cost and time of manufacturing and assembling the power cord can be saved, and the cost of the entire system is relatively reduced.

In general, the PoE socket on the panel of a common electronic device is usually provided with a light-emitting element, so that the light emitted by the light-emitting element can let the user know that the socket is live and has no plug inserted, and let the maintenance personnel Easy to find the line. Among them, the amount of current that the light-emitting element can withstand is limited, so if the current transmitted between the PoE socket and the plug exceeds the design of the light-emitting element after the PoE plug is inserted into the socket, the light-emitting element will be damaged, which is inconvenient For users to use and maintenance personnel maintenance. However, the electronic devices involved in today's smart home concepts, such as Internet phones, wireless base stations, network cameras, hubs, and computers, gradually increase in current due to the gradual improvement of their performance, so today's electronic devices It is more likely to cause damage to the luminous parts of the PoE socket.

In addition, although the damage of the light-emitting parts does not affect the current and signal transmission function of the PoE socket, the damage of the light-emitting parts will not only affect the customer or user's perception of the quality of the PoE socket, but also make the manufacturer have to pay a high amount of recycling Or the cost of repairing PoE sockets. In view of this, how to allow PoE sockets to be used in electronic devices that require large currents and the light-emitting parts on them will not be damaged is a problem urgently solved by R&D personnel in this field.

The present invention is to provide an electrical connection socket that allows a PoE socket to be used in an electronic device that requires a large current and the light-emitting parts on it will not be damaged.

An electrical connection socket disclosed in an embodiment of the present invention is used for inserting an electrical connection plug, and includes a body, a circuit board, an electronic component, at least one conductive member and a pushing member. The base body has a slot, and the slot is used for inserting a power connection plug. The circuit board is fixed in the slot. The electronic component is arranged in the slot. The conductive part is located in the slot. The conductive member has a fixed end and a swinging end opposite, the fixed end is electrically connected to the circuit board, and the swinging end can swing relative to the circuit board. The pushing member is movably located in the slot and leans against at least one conductive member. The pushing member is used for being pushed by the electrical connection plug, so that the swinging end of the at least one conductive member is electrically connected or interrupted to the electronic component.

An electrical connection socket disclosed in another embodiment of the present invention, for inserting an electrical connection plug, includes a base, a circuit board, an electronic component, at least one conductive member, and an electrical insulating member. The base body has a slot, and the slot is used for inserting a power connection plug. The circuit board is fixed in the slot. The electronic component is arranged in the slot. The conductive part is located in the slot. The conductive member has a fixed end, a swing end and a contact end. The fixed end is electrically connected to the circuit board, the swing end can swing relative to the circuit board, and the contact end is located between the fixed end and the contact end. The conductive member is used to be pushed by the electrical connection plug, so that the swing end of the conductive member is electrically connected or interrupted to the electronic component. The electrical insulating member is arranged in the slot and can swing between the contact end of the conductive member and the slot of the slot. Before the swinging end of the conductive member is electrically connected to the electrical connection plug, the electrical insulation member is interposed between the electrical connection plug and the conductive member to electrically isolate the electrical connection plug from the conductive member.

According to the electrical connection socket of the above embodiment, when the electrical connection plug is inserted into the electrical connection socket, the electrical connection plug will electrically interrupt the swinging end of the conductive member and the electronic component, so that the electrical connection plug and the electrical connection The current transferred between the connection sockets will not be transferred to the electronic components. Therefore, even if the amount of current transmitted between the electrical connection plug and the electrical connection socket exceeds the design of the electronic component, the electronic component will not be damaged if the current is not transmitted to the electronic component, and the electrical connection socket can be used in a large Current on the electronic device.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principles of the present invention, and provide a further explanation of the patent application scope of the present invention.

Please refer to Figure 1 to Figure 4. FIG. 1 is a schematic perspective view of an electrical connection socket and an electrical connection plug according to the first embodiment of the present invention. FIG. 2 is an exploded schematic view of the electrical connection socket of FIG. 1. FIG. 3 is a schematic cross-sectional view of the electrical connection socket of FIG. 1 from one perspective. 4 is a schematic cross-sectional view of the electrical connection socket of FIG. 1 from another perspective.

In this embodiment, the electrical connection socket 10 is used for inserting an electrical connection plug 20. The electrical connection socket 10 is, for example, an Ethernet power socket of an electronic device (not shown), and the electrical connection plug 20 is also, for example, an Ethernet power plug. The electrical connection socket 10 includes a base 100, a circuit board 200, an electronic component 300, a plurality of conductive members 400, and a pushing member 500.

The base 100 includes a housing 110, a base 120 and a cable management base 130. The housing 110 has an accommodating space 111. The base 120 is fixed in the accommodating space 111 of the housing 110, and the cable management base 130 is fixed in the housing 110 and shields one side of the accommodating space 111 of the housing 110. The housing 110, the base 120 and the cable management base 130 together form a slot 140. The slot 140 is used for inserting the power connection plug 20.

In this embodiment, the electrical connection socket 10 may further include a plurality of piercing terminals 600, and the cable management base 130 has a plurality of insertion holes 131. The circuit board 200 is fixed in the slot 140. The piercing terminals 600 are fixed on the circuit board 200 and inserted into the sockets 131 of the cable management base 130 respectively. The piercing terminals 600 are used to electrically contact the core wires 31 of the cable 30 installed in one of the sockets 131.

The electronic device 300 is, for example, a light emitting element, and the light emitting element is, for example, a light emitting diode. The electronic component 300 is embedded in the base 120 and exposed on the surface of the base 120 facing the slot 140.

These conductive members 400 are located in the slot 140 and have a similar structure, so only one of the conductive members 400 will be described below. The conductive member 400 has a fixed end 410, a swing end 420, and an electrical contact portion 430. The electrical contact portion 430 of the conductive member 400 is located between the fixed end 410 and the swing end 420. The fixed end 410 of the conductive member 400 is fixed to the circuit board 200, and the swing end 420 of the conductive member 400 is mounted on the base 120 and can swing relative to the circuit board 200. The electrical contact portion 430 of the conductive member 400 is used to electrically contact the electrical connection plug 20. As shown in FIG. 3, in these conductive members 400, the swing ends 420 of the two conductive members 400 correspond to the pins 310 of the electronic component 300.

The pushing member 500 is an electrically insulating material, such as plastic. The pushing member 500 is located in the slot 140 and movably installed on the base 120. In detail, the base 120 has two guide grooves 121 opposite to each other, and the pushing member 500 includes two side portions 510 and 520 and a pushing lever portion 530. The pushing rod portion 530 is located between the two side portions 510 and 520 and connects the two side portions 510 and 520. The two side portions 510 and 520 of the pushing member 500 are respectively movably installed in the two guide grooves 121 of the base 120, and the pushing lever portion 530 abuts against the conductive members 400.

In this embodiment, the housing 110 has a bottom surface 112 and two side surfaces 113, 114 forming the slot 141 of the slot 140, and the opposite sides of the bottom surface 112 are connected to the two side surfaces 113, 114, respectively. The side portion 510 of the pushing member 500 has two protrusions 511 and 512, and the side portion 520 of the pushing member 500 has two protrusions 521 and 522. The two protrusions 511 and 512 of the side portion 510 are adjacent to the side surface 113, and the two protrusions 521 and 522 of the side portion 520 are adjacent to the side surface 114. The protruding portion 511 of the side portion 510 is closer to the side surface 113 than the protruding portion 512, and the protruding portion 521 of the side portion 520 is closer to the side surface 114 than the protruding portion 522. The protrusions 511, 512, 521, and 522 of the pushing member 500 are adjacent to the slot 141 of the slot 140 than the electrical contact portion 430 of the conductive member 400. The electrical contact portion 430 of the conductive member 400 protrudes from the bottom surface 112 of the housing 110 more than the protrusions 511, 512, 521, 522 of the pushing member 500.

In this embodiment, the pushing member 500 is used to be pushed by the electrical connection plug 20, so that the swinging end 420 of the corresponding two conductive members 400 is electrically connected to the electronic component 300 or is electrically interrupted. Further, the pushing member 500 is pushed by the electrical connection plug 20 to move the swinging end 420 of the two conductive members 400 corresponding to the pins 310 of the electronic component 300 from a conductive position to an open position. As shown in FIGS. 3 and 4, when the swinging ends 420 of the two conductive members 400 are in the conductive position, the protrusions 511, 512, 521, and 522 of the pushing member 500 protrude from the bottom surface 112 of the housing 110, and the two The swinging ends 420 of the conductive member 400 are electrically connected to the pins 310 of the electronic device 300 respectively. At this time, an electrical loop is formed between the cable 30, the punctured terminal 600, the circuit board 200, the two conductive members 400, and the electronic component 300, so that the electronic component 300 emits light.

Next, please refer to 1, 2 and 5. 5 is a schematic cross-sectional view of the electrical connection plug of FIG. 1 not yet fully inserted into the electrical connection socket.

When the electrical connection plug 20 is just inserted into the slot 140 of the electrical connection socket 10, the two protruding portions 512, 522 of the two side portions 510, 520 of the pushing member 500 will enter the opposite sides of the front end of the electrical connection plug 20, respectively The two recesses 21, and the two opposite sides of the bottom surface 22 of the electrical connection plug 20 will respectively press the two protruding portions 511, 521 of the two side portions 510, 520, so that the pushing rod portion 530 of the pushing member 500 will The swing end 420 of the second conductive member 400 corresponding to the pin 310 of the electronic component 300 moves from the conductive position to the open position.

Generally speaking, the electrical connection plug has different structures according to the requirements of its manufacturing process. As shown in FIG. 1, in this embodiment, the two opposite sides of the front end of the electrical connection plug 20 respectively have a groove 21, but it is not limited to this. In other embodiments, the two opposite sides of the front end of the electrical connection plug may not have grooves. Since the side portions 510 and 520 of the pushing member 500 have two protruding portions 511, 512, 521 and 522 respectively, it can be ensured that even if two of the protruding portions protrude during the process of inserting the electrical connection plug 20 into the electrical connection socket 10 The portions 512 and 522 enter the two grooves 21 of the electrical connection plug 20 and cannot be pressed by the electrical connection plug 20. The other two protruding portions 511 and 521 can still be pressed by the electrical connection plug 20 to drive the pushing rod of the pushing member 500 The portion 530 presses the second conductive member 400 so that the second conductive member 400 is in the open position. That is to say, by the side portions 510, 520 of the pushing member 500 having two protruding portions 511, 512, 521, 522, it can ensure that the electrical connection plugs of various structures are inserted into the electrical connection socket 10 At least part of the protruding portions of the side portions 510 and 520 of the pushing member 500 will still be pressed by the electrical connection plug 20 to ensure that the pushing lever portion 530 moves the swing end 420 of the two conductive members 400 from the conductive position to Open position.

As shown in FIG. 5, when the two conductive members 400 are in the open position, the swing end 420 of the second conductive member 400 is separated from the pin 310 of the electronic component 300, so that the swing end 420 of the second conductive member 400 and the electronic component 300 are electrically The interruption causes the electronic component 300 to go out. At this time, the conductive member 23 of the electrical connection plug 20 is not yet electrically connected to the conductive member 400 of the electrical connection socket 10. It can be seen that the second conductive member 400 is pressed by the push rod 500 of the push member 500, so that the swinging end 420 of the second conductive member 400 is electrically connected to the conductive member 400 of the socket 10 and the plug 20 The piece 23 was previously in the open position before being electrically connected.

Please refer to FIG. 6, which is a schematic cross-sectional view of the electrical connection plug of FIG. 1 fully inserted into the electrical connection socket.

Next, the electrical connection plug 20 is further inserted into the slot 140. After the electrical connection plug 20 is moved to the position, the conductive members 23 of the electrical connection plug 20 will electrically contact the electrical contact portions 430 of the conductive members 400 of the electrical connection socket 10, so that current can be connected to the electrical connection plug 20 and the electrical connection Power is transmitted between the sockets 10 and provided to the electronic device.

In this embodiment, during the process of inserting the electrical connection plug 20 into the electrical connection socket 10, the electrical connection plug 20 will first electrically interrupt the swinging end 420 of the conductive member 400 of the electrical connection socket 10 and the electronic component 300 Before being electrically connected to the conductive member 400 of the electrical connection socket 10. Therefore, even if the power required by the electronic device is high (for example, greater than 100 watts) and the current transmitted between the electrical connection plug 20 and the electrical connection socket 10 exceeds the design of the electronic component 300, the current will not be transmitted to the electronic component 300 In this case, the electronic component 300 will not be damaged, so that the electrical connection socket 10 can be used in an electronic device requiring a large current.

Then, after the electrical connection plug 20 is pulled out of the electrical connection socket 10, the pushing member 500 is not pressed by the electrical connection plug 20, so these conductive members 400 will rebound and drive the pushing member 500 to reset, and The two conductive members 400 are electrically connected to the pins 310 of the electronic component 300 to make the electronic component 300 emit light.

In this embodiment, the number of protrusions on each side of the pushing member of the electrical connection socket is not limited to two. In other embodiments, there may be only one protrusion on each side of the pushing member of the electrical connection socket. For example, please refer to FIG. 7, which is a three-dimensional schematic diagram of the pushing member of the electrical connection socket according to the second embodiment of the present invention. In this embodiment, the side portion 510a of the pusher 500a has only one protrusion 511a, and the side portion 520a has only one protrusion 521a.

In addition, the position of the protruding portion is not limited to only the side of the pusher. Please refer to FIG. 8, which is a three-dimensional schematic diagram of the pushing member of the electrical connection socket according to the third embodiment of the present invention. In this embodiment, the side portion 510b of the pushing member 500b has a side surface 513b, and the side portion 520b of the pushing member 500b has a side surface 523b. The two side surfaces 513b and 523b of the two side portions 510b and 520b respectively face the two side surfaces 113 and 114 (shown in FIG. 2) of the housing 110 (shown in FIG. 2). In addition, the protrusion 540b of the pushing member 500b extends from a side of the pushing member 500b adjacent to the side surface 113 of the housing 110 to a side of the pushing member 500 adjacent to the side surface 114 of the housing 110. In detail, the protruding portion 540b of the pushing member 500b can extend from the side surface 513b of the side portion 510b through the pushing lever portion 530b of the pushing member 500b to the side surface 523b of the other side portion 520b, or the pushing member 500b The protruding portion 540b extends from one side portion 510b to the other side portion 520b via the pushing rod portion 530b of the pushing member 500b, and the opposite ends of the protruding portion 540b of the pushing member 500b can be respectively connected to the two side portions 510b The two sides 513b and 523b of 520b maintain a distance.

Next, please refer to FIGS. 9 and 10. 9 is a schematic perspective view of an electrical connection socket according to a fourth embodiment of the present invention. 10 is a schematic cross-sectional view of the electrical connection socket of FIG. 9.

In this embodiment, the electrical connection socket 10c is similar to the electrical connection socket 10 of FIG. 1, so the following description focuses on the differences between the two, and the similarities or similarities between the two will not be repeated.

In this embodiment, the electrical contacts 430c of the conductive members 400c each have a contact terminal 431c. The electrical connection socket 10c does not include a pushing member, but includes an electrically insulating member 700c. The electrical insulator 700c is, for example, a Mylar. The electrical insulating member 700c is located in the slot 140c of the electrical connection socket 10c and fixed to the base 120c of the base 100c. The electrically insulating member 700c is swingably located between the contact end 431c of the conductive member 400c and the slot 141c of the slot 140c of the electrical connection socket 10c.

Next, please refer to FIGS. 11 and 12. FIG. 11 is a schematic cross-sectional view of the electrical connection socket of FIG. 9 that has not been fully inserted by the electrical connection plug. 12 is a schematic cross-sectional view of the electrical connection socket of FIG. 9 fully inserted by the electrical connection plug.

As shown in FIG. 11, during the process when the electrical connection plug 20 has just been inserted into the slot 140c of the electrical connection socket 10c, the electrical connection plug 20 will push these conductive members 400c, so that the swing end 420c of the two conductive members 400c from the original The state where the electronic component 300c is electrically connected (as shown in FIG. 10) changes to a state where the electronic component 300c is electrically interrupted. At this time, the electrical insulating member 700c is interposed between the conductive member 23 of the electrical connection plug 20 and the conductive members 400c of the electrical connection socket 10c, so that the conductive member 23 of the electrical connection plug 20 and the conductive members of the electrical connection socket 10c 400c electrical insulation.

Next, as shown in FIG. 12, the electrical connection plug 20 continues to be deeper into the slot 140c. After the electrical connection plug 20 is moved to the position, the conductive members 23 of the electrical connection plug 20 will electrically contact the contact terminals 431c of the electrical contact portions 430c of the conductive members 400c of the electrical connection socket 10c to allow current to be electrically connected The plug 20 is transmitted between the electrical connection socket 10c and provides power to the electronic device.

Then, after the electrical connection plug 20 is pulled out from the electrical connection socket 10c, the conductive member 400c is not pressed by the electrical connection plug 20, so these conductive members 400c will rebound, and the swing end 420c of the two conductive members 400c The electronic component 300c is electrically connected to make the electronic component 300c emit light.

According to the electrical connection socket of the above embodiment, when the electrical connection plug is inserted into the electrical connection socket, the electrical connection plug will electrically interrupt the swinging end of the conductive member and the electronic component, so that the electrical connection plug and the electrical connection The current transferred between the connection sockets will not be transferred to the electronic components. In this way, even if the electronic devices (such as Internet phones, wireless base stations, network cameras, hubs, and computers) used in the electrical connection sockets increase in performance, so that the required current exceeds the design of the electronic components, the electronic components are still not There will be a problem of damage. Therefore, the user's perception of the quality of the electrical connection socket is maintained, and the manufacturer does not have to bear high recycling or maintenance costs.

Although the present invention is disclosed as above with the foregoing embodiments, it is not intended to limit the present invention. Anyone who is familiar with the similar arts can make some changes and retouching without departing from the spirit and scope of the present invention. The scope of patent protection for new models shall be subject to those defined in the scope of patent applications attached to this specification.

10, 10c: electrical connection socket 20: Electrical connection plug 21: groove 22: Underside 23: conductive parts 30: cable 31: core wire 100, 100c: seat body 110: shell 111: accommodating space 112: underside 113, 114: side 120, 120c: base 121: Guide slot 130: Cable management seat 131: jack 140, 140c: slot 141, 141c: notch 200: circuit board 300, 300c: electronic components 310: pin 400, 400c: conductive parts 410: fixed end 420, 420c: swing end 430, 430c: electrical contact 431c: Contact endpoint 500, 500a, 500b: pusher 510, 520, 510a, 520a, 510b, 520b: side 511, 512, 511a: protrusion 521, 522, 521a: protrusion 513b, 523b: side 530, 530b: push against the lever 540b: protrusion 600: punctured terminal 700c: Electrical insulation

FIG. 1 is a schematic perspective view of an electrical connection socket and an electrical connection plug according to the first embodiment of the present invention. FIG. 2 is an exploded schematic view of the electrical connection socket of FIG. 1. FIG. 3 is a schematic cross-sectional view of the electrical connection socket of FIG. 1 from one perspective. 4 is a schematic cross-sectional view of the electrical connection socket of FIG. 1 from another perspective. 5 is a schematic cross-sectional view of the electrical connection plug of FIG. 1 not yet fully inserted into the electrical connection socket. 6 is a schematic cross-sectional view of the electrical connection plug of FIG. 1 fully inserted into the electrical connection socket. 7 is a three-dimensional schematic diagram of the pushing member of the electrical connection socket according to the second embodiment of the present invention. FIG. 8 is a schematic perspective view of the pushing member of the electrical connection socket according to the third embodiment of the present invention. 9 is a schematic perspective view of an electrical connection socket according to a fourth embodiment of the present invention. 10 is a schematic cross-sectional view of the electrical connection socket of FIG. 9. 11 is a schematic cross-sectional view of the electrical connection socket of FIG. 9 that has not been fully inserted by the electrical connection plug. 12 is a schematic cross-sectional view of the electrical connection socket of FIG. 9 fully inserted by the electrical connection plug.

10: Electrical connection socket

20: Electrical connection plug

21: groove

22: Underside

30: cable

100: seat body

110: shell

120: base

130: Cable management seat

140: slot

141: Notch

300: Electronic components

400: conductive parts

500: pusher

Claims (10)

An electrical connection socket for inserting an electrical connection plug, including: A body has a slot for inserting the electrical connection plug; A circuit board, fixed in the slot; An electronic component is arranged in the slot; At least one conductive member is located in the slot, the at least one conductive member has a fixed end and a swinging end opposite, the fixed end is electrically connected to the circuit board, the swinging end can swing relative to the circuit board; and A pushing member is movably located in the slot and is against the at least one conductive member; Wherein, the pushing member is used to be pushed by the electrical connection plug, so that the swinging end of the at least one conductive member is electrically connected to the electronic component or is electrically interrupted. The electrical connection socket as described in item 1 of the patent application range, wherein the pushing member is used to be pushed by the electrical connection plug to move the swinging end of the at least one conductive member from a conductive position to an open position, when When the swinging end of the at least one conductive member is located at the conductive position, the swinging end is electrically connected to the electronic component, and when the swinging end of the at least one conductive member is located at the open position, the swinging end is electrically connected to the electronic component Interrupt. The electrical connection socket as described in item 2 of the patent application scope, wherein before the at least one conductive member is electrically connected to the electrical connection plug, the at least one conductive member is pressed by the pushing member, so that the at least one The swing end of the conductive member is located at the open position. The electrical connection socket as described in item 2 of the patent application scope, wherein the base body has two side surfaces forming a slot of the slot and a bottom surface, the opposite sides of the bottom surface are connected to the two side surfaces, and the pushing member has At least one protruding portion, the at least one protruding portion of the pushing member is used to be pressed by the electrical connection plug, when the swinging end of the at least one conductive member is located at the conductive position, the at least one of the pushing member A protrusion protrudes from the bottom surface. The electrical connection socket according to item 4 of the patent application scope, wherein the number of the at least one protruding portion is plural, and the protruding portions are respectively adjacent to the two side surfaces of the base. The electrical connection socket as described in item 4 of the patent application scope, wherein the number of the at least one protruding portion is one, and the protruding portion extends from a side of the pushing member adjacent to one of the side surfaces of the seat body to The pushing member is adjacent to one side of the other side of the seat body. The electrical connection socket as described in item 4 of the patent application range, wherein the at least one conductive member further has an electrical contact portion for electrically contacting the electrical connection plug, the electrical connection of the at least one conductive member The contact portion protrudes from the bottom surface of the housing more than the protruding portion of the pusher. The electrical connection socket as described in item 4 of the patent application scope, wherein the at least one conductive member further has an electrical contact portion for electrically contacting the electrical connection plug, and the protrusion of the pushing member The portion is closer to the slot of the slot than the electrical contact portion of the at least one conductive member. The electrical connection socket as described in item 1 of the patent application scope, wherein the electronic component is a light emitting part. An electrical connection socket for inserting an electrical connection plug, including: A body has a slot for inserting the electrical connection plug; A circuit board, fixed in the slot; An electronic component is arranged in the slot; At least one conductive member is located in the slot, the at least one conductive member has a fixed end, a swing end and a contact end, the fixed end is electrically connected to the circuit board, the swing end can swing relative to the circuit board , The contact end is located between the fixed end and the contact end, the at least one conductive member is used to be pushed by the electrical connection plug, so that the swing end of the at least one conductive member is electrically connected to the electronic component or Electrical interruption; and An electrically insulating member is disposed in the slot and is swingably located between the contact end of the at least one conductive member and the slot of the slot; Wherein, before the swinging end of the at least one conductive member is electrically connected to the electrical connection plug, the electrical insulation member is interposed between the electrical connection plug and the at least one conductive member, so that the electrical connection plug and the at least one conductive member A conductive part is electrically insulated.

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