CN109672030B - Adapter - Google Patents

Abstract

The present invention discloses an adapter, comprising an adapter body; a busbar; a plurality of wiring terminals, each of which is electrically connected to a corresponding busbar; a plurality of adapter units, each of which is electrically connected to a matching wiring terminal, and a plurality of external connection mechanisms are arranged in the adapter unit, each of which is electrically connected to a wiring terminal and an electrical component respectively; the adapter unit is electrically connected to a matching wiring terminal, and the wiring terminal is electrically connected to a corresponding busbar, and one adapter unit has a plurality of external connection mechanisms, that is, current in the busbar is shunted, so that one busbar can be connected to a plurality of external connection mechanisms, thus realizing one-input and multiple-output; moreover, the adapter realizes the connection between a power transmission component and a plurality of electrical components by relying on the connection between the adapter unit and the wiring terminal, that is, relying on the connection between the mechanisms. Compared with the line connection, the present invention has the advantages of convenient wiring and stable and reliable connection.

Description

An adapter

Technical Field

The invention relates to the technical field of busbar devices, and in particular to an adapter.

Background technique

The busbar system is mainly used in low-voltage distribution cabinets. The inlet and outlet line circuits adopt hole-free electrical installation technology. The circuit breaker is connected to the busbar through a busbar adapter. The distribution busbar is both a conductor and a support for electrical components and is enclosed at the back.

In a busbar system, a busbar adapter is to open a gap in the circuit in the busbar system, connect the circuit breaker to the circuit, and connect multiple circuit breakers to the circuit in series through the busbar adapter. For example, a busbar system adapter for a small circuit breaker disclosed in Chinese patent document CN207038892 includes a housing, a busbar bar arranged at the bottom of the housing, a terminal arranged at one end of the busbar bar, a first partition and a second partition arranged on the housing, the busbar bar is connected to the busbar in the busbar system, and the terminal can be connected to the circuit breaker, so that the current in the busbar system can enter the circuit breaker through the busbar bar and the terminal. However, this adapter can only lead each phase current in the circuit to a terminal, and can only realize the conduction of one external circuit. If several electrical components are to be connected to the circuit in parallel, multiple wires need to be connected to one terminal, which has great safety hazards, and wiring is difficult, and the specific joints cannot be distinguished, and the operation is extremely inconvenient.

Summary of the invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect that the existing adapter in the prior art can only be connected to one line, thereby providing an adapter that can be connected to multiple lines, has convenient wiring and reliable connection.

An adapter of the present invention comprises

Adapter body;

A busbar, disposed in the adapter body and electrically connected to a power transmission component external to the adapter body;

Also includes,

A plurality of connection terminals are provided on the adapter body, each of which is electrically connected to the corresponding busbar;

The adapter unit has several pieces, which are electrically connected to the matching wiring terminals. The adapter unit is provided with several external connection mechanisms, each of which is electrically connected to the wiring terminals and electrical components respectively, so as to realize circuit conduction between the busbar and the electrical components.

The connection terminal is plugged into the switching unit.

The adapter unit is provided with a first conductive member electrically connected to each of the external mechanisms, and a plug is provided at one end of the first conductive member; the wiring terminal is provided with a slot suitable for inserting the plug; the plug is inserted into the slot to electrically connect the first conductive member to the wiring terminal.

Reset springs are arranged on the two slot walls of the slot abutting against the inserting piece, and the reset springs provide biasing force for the two slot walls to return to the initial position.

The connection terminal is located at one end of the adapter body, and the adapter units are arranged in parallel on the adapter body.

The adapter unit is fixed on the cover plate of the adapter body through a fixing structure.

The fixing structure includes a locking hole formed on the cover plate and arranged relative to each of the adapter units, and a hook formed at a position of the adapter unit relative to the locking hole and capable of being hooked into the locking hole to prevent the adapter unit from detaching from the adapter body in the height direction.

The locking holes include a first locking hole suitable for the hook to be placed, and a second locking hole for moving the adapter unit forward so that the hook enters the second locking hole;

The hook is an L-shaped structure.

The fixing structure also includes an anti-slip plate arranged on the adapter body, and the anti-slip plate is located on the opposite side of the connection terminal to the insertion direction of the adapter unit, and is used to prevent the adapter unit from slipping off the adapter body.

The cover plate is provided with a partition plate which is arranged along the insertion direction of the adapter unit and isolates two adjacent adapter units.

The adapter unit includes a housing, and a first accommodating cavity arranged in the housing, the external connection mechanism is arranged in the first accommodating cavity, and the external connection mechanism includes:

A locking member is provided at the cavity opening of the first accommodating cavity, and locks the wire after the wire of the electrical component is inserted into the first accommodating cavity from the cavity opening to prevent the wire from coming out;

The second conductive member is electrically connected to the first conductive member and is located at one side of the locking end of the locking member. When the locking member locks the wire, the locking end pushes the wire to the second conductive member to electrically connect the wire to the second conductive member.

The locking member is an elastic sheet, a locking end of the elastic sheet is arranged close to the cavity opening, and an end of the locking end away from the elastic sheet is arranged toward the second conductive member.

The shell is also provided with a plug hole communicating with the cavity opening, and the wire is inserted into the external connection mechanism through the plug hole.

It also includes an unlocking mechanism arranged on the housing, and the unlocking mechanism is used to release the locking of the wire by the locking member.

The unlocking mechanism comprises an unlocking cavity, which is arranged on the housing and communicates with the first accommodating cavity;

An unlocking member is movably arranged in the unlocking cavity. One end of the unlocking member extends into the first accommodating cavity and can abut against the locking end, so that the locking member moves toward the unlocking direction to release the locking of the wire by the locking member.

The locking element does not protrude above the outer surface of the housing.

A metal connector is also provided in the adapter body, and the metal connector is connected to at least one of the bus bars and is used for conducting at least one of the bus bars connected to the metal connector.

The technical solution of the present invention has the following advantages:

1. The adapter provided by the present invention includes an adapter body; a busbar; a plurality of wiring terminals, which are arranged on the adapter body and each of which is electrically connected to the corresponding busbar; a plurality of adapter units, which are electrically connected to the matching wiring terminals, and a plurality of external connection mechanisms are arranged in the adapter unit, each of which is electrically connected to the wiring terminals and the electrical components, so as to realize the circuit conduction between the busbar and the electrical components. The adapter unit is electrically connected to the matching wiring terminals, and the wiring terminals are electrically connected to the corresponding busbar, and an adapter unit has a plurality of external connection mechanisms, that is, the current in the busbar is shunted, so that a busbar can be connected to a plurality of external connection mechanisms, and one input and multiple outputs are realized; moreover, the adapter realizes the connection between the power transmission component and the plurality of electrical components by relying on the connection between the adapter unit and the wiring terminals, that is, relying on the connection between the mechanisms. Compared with the line connection, the present invention has the advantages of convenient wiring and stable and reliable connection.

2. The adapter provided by the present invention has a first conductive member electrically connected to each external mechanism on the adapter unit, and a plug-in piece is provided at one end of the first conductive member; a slot suitable for inserting the plug-in piece is provided on the wiring terminal; the plug-in piece is inserted into the slot to electrically connect the first conductive member to the wiring terminal; the above structure realizes the connection between the adapter unit and the adapter body by providing the plug-in piece on the adapter unit and providing the slot on the adapter body, and the plug-in piece is inserted into the slot. The operation is convenient, the connection is stable and reliable, and it can be quickly connected during assembly and can be quickly disassembled during disassembly.

3. In the adapter provided by the present invention, reset springs are arranged on the two slot walls of the slot that abut against the plug-in piece, and the reset springs provide a biasing force for the two slot walls to return to their initial positions; the above structure can make the two slot walls of the slot have a tendency to move towards each other, so that the plug-in piece can always be clamped when inserted into the slot, thereby ensuring the stability and reliability of the electrical connection, and preventing poor contact due to loose slot walls of the slot.

4. The adapter provided by the present invention has a fixing structure including a locking hole formed on the cover plate and arranged relative to each adapter unit, and a hook formed at a position of the adapter unit relative to the locking hole and hooked into the locking hole to prevent the adapter unit from detaching from the adapter body in the height direction; the fixing structure also includes an anti-slip plate arranged on the adapter body, the anti-slip plate is located on the opposite side of the adapter unit insertion direction of the wiring terminal, and is used to prevent the adapter unit from slipping off the adapter body. The above-mentioned fixing structure utilizes the locking hole on the cover plate and the hook on the adapter unit to cooperate with each other to prevent the adapter unit from slipping off in the height direction of the adapter body, and then utilizes the anti-slip plate to prevent the adapter unit from sliding in the length direction of the adapter body, thereby preventing the adapter unit from slipping off in the length direction of the adapter body. In this way, the fixing structure can firmly fix the adapter unit on the adapter body, and the fixation is convenient. When installing the adapter unit, first insert the adapter unit's hook into the adapter body's locking hole. At this time, the adapter unit's insert piece is inserted into the adapter body's slot, and then the anti-drop plate is fixed to the end of the adapter body to fix the adapter unit.

5. The adapter provided by the present invention comprises an adapter unit including a shell, and a first accommodating cavity arranged in the shell, and an external connection mechanism is arranged in the first accommodating cavity, and the external connection mechanism comprises: a locking member, which is arranged at the cavity opening of the first accommodating cavity, and locks the wire after the wire of the electrical component is inserted into the first accommodating cavity from the cavity opening to prevent the wire from slipping out; a second conductive member, which is electrically connected to the first conductive member and is located on one side of the locking end of the locking member, and when the locking member locks the wire, the locking end pushes the wire to the second conductive member, so that the wire is electrically connected to the second conductive member. The above-mentioned external connection mechanism clamps the wire of the electrical component to the second conductive member through the cooperation of the locking member and the second conductive member, which can fix the wire in the adapter unit and ensure the electrical connection between the wire and the second conductive member. During operation, as long as the wire is inserted into the first accommodating cavity, it can be clamped by the locking member, so that the adapter can be quickly plugged in, and the operation is simple and convenient.

6. The adapter provided by the present invention has an unlocking mechanism including an unlocking chamber, which is arranged on the shell and connected to the first accommodating chamber; an unlocking member is movably arranged in the unlocking chamber, and one end of the unlocking member extends into the first accommodating chamber and can abut against the locking end to move the locking member in an unlocking direction to release the locking of the wire by the locking member; the above-mentioned unlocking mechanism is to facilitate the unplugging of the wire of the electrical component and realize the quick pull of the adapter. The unlocking mechanism utilizes the unlocking member abutting against the locking member to move downward to force the locking end of the locking member to move downward as well, so that the locking member is removed from the wire, the suppression of the wire is released, and the wire can be pulled out of the adapter unit, which is easy to operate.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of an adapter provided in one embodiment of the present invention;

FIG2 is an exploded view of the adapter body shown in FIG1 ;

FIG3 is a schematic structural diagram of the switching unit shown in FIG1 ;

FIG4 is a cross-sectional view of the adapter unit shown in FIG1 ;

FIG5 is a partial enlarged view of A shown in FIG4 ;

FIG6 is a schematic structural diagram of the conductive member shown in FIG4 ;

FIG7 is a schematic diagram of the structure of the elastic sheet shown in FIG4 ;

FIG8 is a schematic diagram of the structure of the wiring terminal shown in FIG4;

FIG9 is a schematic structural diagram of the cover plate shown in FIG2 ;

FIG10 is a schematic structural diagram of a busbar provided in another embodiment of the present invention;

Description of reference numerals: 1, adapter body; 11, base; 111, bus duct; 112, first slide chute; 12. Cover plate; 121. Wiring port; 122. Partition plate; 123. Second slide slot; 124. Positioning hole; 1241. First positioning hole; 1242. Second positioning hole; 13. Wiring terminal; 131. First wiring terminal; 132. Second wiring terminal; 133. Third wiring terminal; 134. Reset spring; 135. Slot; 14. Bus bar; 15. Anti-drop plate; 2. Adapter unit; 21. Shell; 211. Socket; 212. First accommodating cavity; 213. Second accommodating cavity; 214. Unlocking cavity; 2141. Second limiting protrusion; 2142. Fourth limiting protrusion; 215. Hook; 216. Fixing column; 217. Fixing slot; 22. Shell cover; 23. Conductive member; 231. First conductive member; 232, second conductive member; 2321, first portion; 2322, second portion; 2323, anti-slip portion; 233, connecting plate; 24, insert; 25, locking member; 251, locking end; 252, fixing portion; 253, supporting end; 26, unlocking member; 261, first limiting protrusion; 262, third limiting protrusion; 3, connecting member.

Detailed ways

The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

As shown in Figures 1, 2 and 3, in this embodiment, the adapter includes an adapter body 1, a busbar 14, a terminal block 13 and an adapter unit 2. The adapter body 1 has a cover plate 12 and a base 11; the base 11 of the adapter body 1 is provided with bus ducts 111 arranged in sequence, the busbar 14 is fixed in the busbar duct 111, and the busbar 14 is electrically connected to the power transmission components external to the adapter body 1. It should be noted that in this embodiment, there are three busbars 14, and the three busbars 14 are respectively connected to the live wire, the neutral wire and the ground wire. The terminal block 13 is arranged at one end of the adapter body 1, and there are three of them. Each of the terminal blocks 13 is electrically connected to the busbar 14 correspondingly, and a connection port 121 that can expose the terminal block 13 is formed on the cover plate. As shown in Figure 4, the adapter unit 2 is electrically connected to the wiring terminal 13, and has three of them, which are arranged side by side in sequence on the cover plate 12 of the adapter body 1. One end of the adapter unit 2 is electrically connected to the wiring terminal 13. A plurality of separately arranged external connection mechanisms are arranged in the adapter unit 2, and the external connection mechanisms are respectively electrically connected to the wiring terminal 13 and a plurality of electrical components to achieve circuit conduction between the bus bar 14 and the plurality of electrical components. A plurality of jacks 211 suitable for inserting wires of the electrical components are formed on the adapter unit 2; a partition 122 is arranged on the cover plate 12 of the adapter body 1, which is arranged along the insertion direction of the adapter unit 2 and isolates two adjacent adapter units 2. The partition 122 can separate the adjacent adapter units 2 by a certain distance to prevent the adjacent adapter units 2 from interfering with each other.

In this embodiment, the number of busbars 14 is three, which is a commonly used number in a distribution box. Of course, in other embodiments, other numbers, such as two, can be selected according to actual conditions and needs; the number of the wiring terminals 13 corresponds to the number of the busbars 14; the adapter unit 2 can be installed on the adapter body 1 according to customer needs, such as setting one, two, etc., and the number thereof is not greater than the number of the wiring terminals 13.

The adapter unit 2 is provided with a conductive member 23 that can be electrically connected to the electrical components, and the conductive member 23 includes a first conductive member 231 electrically connected to a plurality of the external units. The bottom of the adapter unit 2 is provided with a second accommodating cavity 213 arranged longitudinally along the adapter unit 2, and the first conductive member 231 is fixed in the second accommodating cavity 213. As shown in FIG. 6, a connecting plate 233 is formed at one end of the first conductive member 231, and a plug-in piece 24 extending to the outside of the adapter unit 2 is connected to the connecting plate 233.

The adapter unit is electrically connected to the matching terminal, and the terminal is electrically connected to the corresponding busbar. One adapter unit has a plurality of external connection mechanisms, which shunts the current in the busbar, so that one busbar can be connected to a plurality of external connection mechanisms, thus achieving one input and multiple outputs. Moreover, the adapter realizes the connection between the power transmission component and a plurality of power-consuming components by relying on the connection between the adapter unit and the terminal, that is, relying on the connection between the mechanisms. Compared with the line connection, the present invention has the advantages of convenient wiring and stable and reliable connection.

In this embodiment, as shown in Figure 8, the wiring terminal 13 is plugged into the adapter unit 2; specifically, the wiring terminal 13 is provided with a slot 135 suitable for inserting the plug-in piece 24, and the slot 135 is formed by the opposite ends of the wiring terminal 13; the plug-in piece 24 with a long rectangular structure or a "T"-shaped structure is inserted into the slot 135, so that the first conductive member 231 is electrically connected to the wiring terminal.

The plug 24 is in an "L"-shaped structure, and has a first plug that can be inserted into the slot 135 and a second plug that is arranged perpendicular to the first plug and connected to the first conductive member 231; in this embodiment, the first plug is a long rectangular structure or a "T"-shaped structure, and can also be other structures as long as it can be inserted into the slot 135 to achieve electrical connection; the second plug is fixedly connected to the connecting plate 233 of the first conductive member 231, and the connection method is welding or riveting.

The slot 135 has a trumpet-shaped opening at the opening facing the plug-in piece 24 to facilitate the insertion of the plug-in piece 24.

The connection terminal 13 includes a first connection terminal 131 , a second connection terminal 132 and a third connection terminal 133 which are integrally formed. The first connection terminal 131 and the third connection terminal 133 are arranged opposite to each other to form a slot 135 suitable for inserting the plug 24 . The second connection terminal 132 is fixed on the bus bar 14 .

The above structure arranges the plug 24 on the adapter unit 2 and the slot 135 on the adapter body 1. The plug 24 is inserted into the slot 135 to achieve the connection between the adapter unit 2 and the adapter body 1. The operation is convenient, the connection is stable and reliable, and the connection can be quickly connected during assembly and can be quickly disassembled during disassembly.

In addition, a reset spring sheet 134 is provided on the outer side of the two groove walls where the slot 135 abuts against the plug 24. The reset spring sheet 134 can generate a force to squeeze the slot 135 when the plug 24 is inserted into the slot 135, and the slot 135 returns to its initial position after the plug 24 is pulled out of the slot 135. The spring sheet provides a biasing force for the two groove walls to return to their initial positions. The reset spring sheet 134 is an annular structure with a notch, one end of which is arranged on one side of the slot 135, and the other end is arranged on the other side of the slot 135.

The adapter unit 2 is fixed to the cover plate 12 of the adapter body 1 by a fixing structure; the fixing structure includes a positioning hole 124 formed on the cover plate 12 and arranged relative to each of the adapter units 2, and a hook 215 formed at a position of the adapter unit 2 relative to the positioning hole 124 and capable of being hooked in the positioning hole 124. The hook 215 is hooked in the positioning hole 124 to prevent the adapter unit 2 from detaching from the adapter body 1 in the height direction.

As shown in FIG. 9 , in this embodiment, the locking hole 124 includes a first locking hole 1241 suitable for the hook to be inserted, and a second locking hole 1242 for moving the adapter unit 2 forward so that the hook 215 hooks the cover plate 12 .

The fixing structure also includes an anti-slip plate 15 located on the opposite side of the connecting terminal 13 in the insertion direction of the adapter unit 2 to prevent the adapter unit 2 from slipping out of the longitudinal direction of the adapter body 1, and the anti-slip plate 15 has a blocking portion that abuts against the adapter unit 2 to prevent the adapter unit 2 from sliding; the anti-slip plate 15 is plugged into the adapter body 1, and the anti-slip plate 15 is formed with a sliding protrusion arranged along the length direction of the anti-slip plate 15, and the adapter body 1 is formed with a sliding groove suitable for the insertion of the sliding protrusion at a position relative to the sliding protrusion.

The anti-slip plate 15 is formed with a sliding protrusion, and the adapter body 1 is provided with a sliding groove cooperating with the sliding protrusion at a position relative to the sliding protrusion. The sliding groove includes a first sliding groove 112 arranged on the base 11 and a second sliding groove 123 arranged on the cover plate 12 corresponding to the first sliding groove 112.

The above-mentioned fixing structure utilizes the positioning hole 124 on the cover plate 12 and the hook 215 on the adapter unit 2 to cooperate with each other to prevent the adapter unit 2 from slipping off in the height direction of the adapter body 1, and then utilizes the anti-slip plate 15 to prevent the adapter unit 2 from sliding in the length direction of the adapter body 1, thereby preventing the adapter unit 2 from slipping off in the length direction of the adapter body 1. In this way, the fixing structure can firmly fix the adapter unit 2 on the adapter body 1, and the socket is convenient. First, the hook 215 of the adapter unit 2 is inserted into the positioning hole 124 of the adapter body 1. At this time, the plug 24 of the adapter unit 2 is inserted into the slot 135 of the adapter body 1, and then the anti-slip plate 15 is fixed to the end of the adapter body 1 to prevent the adapter unit 2 from moving.

As shown in Figures 4, 6 and 7, the adapter unit 2 includes a shell 21, a shell cover 22 and a first accommodating cavity 212 arranged in the shell 21 and connected to the jack 211, and the bottoms of the first accommodating cavities 212 are respectively connected to the second accommodating cavities 213, and the external connection mechanism is arranged in the first accommodating cavity 212. The external connection mechanism includes: a locking member 25 is arranged at the cavity opening of the first accommodating cavity 212, that is, at the jack 211, and locks the wire after the wire of the electrical component is inserted into the first accommodating cavity 212 from the cavity opening to prevent the wire from falling out; a second conductive member 232, which is electrically connected to the first conductive member 231 and is located on one side of the locking end 251 of the locking member 25. When the locking member 25 locks the wire, the locking end 251 pushes the wire to the second conductive member 232, so that the wire is electrically connected to the second conductive member 232.

The second conductive member 232 is "L"-shaped, including a first portion 2321 arranged near the cavity opening and a second portion 2322 for fixing the second conductive member 232 on the first conductive member 231, and the second portion 2322 is connected to the first conductive member 231 via diagonally arranged rivets; a wavy anti-slip portion 2323 is formed at one end of the first portion near the cavity opening, which is used to increase the pressure on the wire and prevent the wire from slipping.

The above-mentioned external connection mechanism clamps the wire of the electrical component on the second conductive member 232 through the cooperation of the locking member 25 and the second conductive member 232, and can fix the wire in the adapter unit 2, and ensure the electrical connection between the wire and the second conductive member 232. During operation, as long as the wire is inserted into the first accommodating cavity 212, it can be clamped by the locking member 25, thereby realizing the quick insertion of the adapter.

The locking piece 25 is an elastic sheet, the locking end 251 of the elastic sheet is arranged close to the cavity opening, and the end of the locking end 251 away from the elastic sheet is arranged toward the second conductive piece 232; the middle position of the locking piece 25 is fixed by a fixing column 216 at the diagonal of the first accommodating cavity 212 relative to the second conductive piece 232, and the locking end 251 is arranged along the inner wall of the first accommodating cavity 212.

The locking member 25 includes a locking end 251 , a fixing portion 252 fixed by the fixing column 216 , and a supporting end 253 for supporting the locking member 25 .

The housing 21 is also provided with a socket 211 connected to the cavity opening, and the wire is inserted into the external mechanism through the socket 211; after the wire is inserted into the socket 211, the locking end 251 of the locking member 25 will lock the wire on the second conductive member 232 to prevent the conductive member from easily falling out.

In order to be able to pull out the wire from the jack 211, the adapter unit 2 also includes an unlocking mechanism arranged on the shell 21, and the unlocking mechanism is used to release the lock of the wire by the locking member 25; the unlocking mechanism includes an unlocking cavity 214 and an unlocking member 26, the unlocking cavity 214 is arranged on the shell 21, is connected to the first accommodating cavity 212, and is arranged parallel to the jack 211; the unlocking member is movably arranged in the unlocking cavity 214, and one end of the unlocking member extends into the first accommodating cavity 212 and can abut against the locking end 251, so that the locking member 25 moves in the unlocking direction to release the lock of the wire by the locking member 25; when unlocking, the unlocking member is pressed downward, so that the unlocking will move in the unlocking cavity 214 toward the first accommodating cavity 212, and the unlocking member will force the locking member 25 to move downward and then unlock, and the wire can be pulled out of the adapter unit 2.

In particular, the unlocking member disposed in the unlocking cavity 214 is not higher than the outer surface of the housing 21; this is to avoid touching the unlocking member, causing the wire to escape from the adapter unit 2, making the electrical components unable to work normally.

In this embodiment, a groove that can be used for positioning a tool is formed on one end of the unlocking member 26 for pressing, so that the tool can be easily aligned with the unlocking member 26 for pressing.

As shown in Figure 5, a first limiting structure is provided between the unlocking member 26 and the unlocking cavity 214 to prevent the unlocking member 26 from being over-pressed. The first limiting structure includes a first limiting protrusion 261 formed on the unlocking member 26, and a second limiting protrusion 2141 formed on the inner wall of the unlocking cavity 214 and cooperating with the first limiting protrusion 261. The first limiting protrusion 261 and the second limiting protrusion 2141 cooperate to effectively limit the downward moving distance of the unlocking member 26, thereby preventing the unlocking member 26 from being over-pressed, causing the locking member 25 to fail.

A second limiting structure capable of preventing the unlocking piece 26 from escaping from the unlocking cavity 214 is also provided between the unlocking piece 26 and the unlocking cavity 214, wherein the second limiting structure comprises a third limiting protrusion 262 formed on the unlocking piece 26 and a fourth limiting protrusion 2142 formed on the unlocking cavity 214 and cooperating with the third limiting protrusion 262; the cooperation between the third limiting protrusion 262 and the fourth limiting protrusion 2142 can prevent the decompression block from escaping from the unlocking cavity 214.

In addition, the adapter unit 2 includes a shell 21 and a shell cover 22. The shell cover 22 is attached to the side of the shell 21. A plurality of regularly distributed plug posts are formed on a side of the shell cover 22 facing the shell 21. A fixing groove 217 suitable for inserting the plug posts is formed at a position of the shell 21 relative to the plug posts. The plug posts are inserted into the fixing groove 217 so that the shell cover 22 is fixed to the shell 21, which is convenient for assembly and disassembly.

The working process of the adapter is as follows: the current in the busbar system flows from the busbar 14 connected to the live wire into the adapter body 1, and after the current flows through the wiring terminal 13 arranged on the busbar 14, it enters the adapter unit 2 through the plug 24 plugged into the wiring terminal 13, and the current flows from the plug 24 to the first conductive member 231, and then flows through the second conductive member 232 connected to the first conductive member 231 to the wire fixed to the second conductive member 232 by the external mechanism, and the current enters the electrical component through the wire, and then flows back to the busbar system from the wire electrically connected to the electrical component and the neutral wire.

As a replaceable embodiment, as shown in Figure 10, since more electrical components need to be connected in parallel on the adapter, and increasing the number of external mechanisms in the adapter unit 2 requires re-preparing a new adapter unit, for ease of operation, a metal connector 3 is provided on the busbar 14 of the adapter body 1, and the metal connector 3 is provided close to the terminal 13, and the metal connector 3 is connected to at least one of the busbars 14, thereby conducting at least one of the busbars 14 connected to the metal connector 3; when only one of the at least one busbars 14 that are conductive to each other is connected to current, the adapter units on the mutually conductive busbars 14 can shunt the current through the metal connector 3, so that more electrical components can be connected.

Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the protection scope of the invention.

Claims (11)

1. An adapter comprising

An adapter body (1);

The bus bar (14) is arranged in the adapter body (1) and is electrically connected with a power transmission component externally connected with the adapter body (1);

it is characterized in that the utility model also comprises,

The connecting terminals (13) are arranged on the adapter body (1) and are provided with a plurality of connecting terminals, and each connecting terminal (13) is electrically connected with the corresponding bus bar (14);

The switching unit (2) is provided with a plurality of connecting terminals (13) which are matched with each other in an inserting mode to realize electric connection, a plurality of external mechanisms are arranged in the switching unit (2), and each external mechanism is respectively and electrically connected with the connecting terminal (13) and the electric component to realize the circuit conduction of the bus bar (14) and the electric component;

the switching unit (2) is provided with a first conductive piece (231) electrically connected with each external connection mechanism, and one end of the first conductive piece (231) is provided with an inserting piece (24); the wiring terminal (13) is provided with a slot (135) which is suitable for the insertion of the inserting piece (24); the inserting piece (24) is inserted into the slot (135) so that the first conductive piece (231) is electrically connected with the wiring terminal (13);

the switching unit (2) further comprises a shell (21) and a first accommodating cavity (212) arranged in the shell (21), wherein the external connection mechanism is arranged in the first accommodating cavity (212) and comprises the following components;

A locking piece (25) which is arranged at the cavity opening of the first accommodating cavity (212) and locks the lead after the lead of the power utilization component is inserted into the first accommodating cavity (212) from the cavity opening to prevent the lead from falling out;

The adapter further comprises: an unlocking mechanism provided on the housing (21) for unlocking the wire by the locking member (25); the unlocking mechanism comprises a locking mechanism which comprises a locking mechanism,

The unlocking cavity (214) is arranged on the shell and communicated with the first accommodating cavity (212), and comprises a second limiting protrusion (2141) formed on the inner wall of the unlocking cavity (214);

The unlocking piece (26), mobilizable setting is in unlocking chamber (214), be equipped with the shaping in first spacing protruding (261) of unlocking piece (26), first spacing protruding (261) and second spacing protruding (2141) cooperation can effectually restrict the distance that unlocking piece (26) moved downwards prevents unlocking piece (26) is excessively pressed, leads to locking piece (25) inefficacy.

2. The adapter according to claim 1, wherein a reset spring piece (134) is provided on two groove walls of the slot (135) abutting against the insert piece (24), and the reset spring piece (134) provides a biasing force for restoring the two groove walls to an initial position.

3. An adapter according to any one of claims 1-2, characterized in that the connection terminals (13) are located at one end of the adapter body (1), the adapter units (2) being arranged side by side on the adapter body (1).

4. An adapter according to claim 3, characterized in that the adapter unit (2) is fixed to a cover plate (12) of the adapter body (1) by a fixing structure; the fixing structure comprises a clamping hole (124) formed on the cover plate (12) and arranged relative to each switching unit (2), and a clamping hook (215) formed at the position of the switching unit (2) relative to the clamping hole (124) and capable of being hooked in the clamping hole (124) so as to prevent the switching unit (2) from being separated from the switching unit (1) in the height direction;

the clamping hole (124) comprises a first clamping hole (1241) suitable for the clamping hook (215) to be placed in, and a second clamping hole (1242) for enabling the clamping hook (215) to enter by moving the switching unit (2) forwards;

the clamping hook (215) is of an L-shaped structure.

5. The adapter according to claim 4, characterized in that the fixing structure further comprises a drop-off preventing plate (15) provided on the adapter body (1), the drop-off preventing plate (15) being located on the opposite side of the insertion direction of the adapter unit (2) of the connection terminal (13), the drop-off preventing plate (15) being connected with the adapter unit (2) for preventing the adapter unit (2) from slipping off the adapter body (1).

6. An adapter according to any one of claims 4-5, characterized in that the cover plate (12) is provided with a partition (122) arranged in the direction of insertion of the adapter units (2) for separating adjacent two adapter units (2).

7. The adapter according to any one of claims 4-5, wherein the circumscribing mechanism further comprises:

The second conductive member (232) is electrically connected with the first conductive member (231) and is positioned on one side of a locking end (251) of the locking member (25), and when the locking member (25) locks the wire, the locking end (251) pushes the wire to be electrically connected with the second conductive member (232).

8. The adapter according to claim 7, characterized in that the locking element (25) is a flexible sheet, the locking end (251) of which is arranged close to the cavity opening, and the end of the locking end (251) remote from the flexible sheet is arranged towards the second conductive element (232).

9. The adapter according to claim 8, wherein a socket (211) communicating with the cavity opening is further provided on the housing (21), and the wire is inserted into the external connection mechanism through the socket (211).

10. An adaptor according to any one of claims 8 to 9, wherein,

One end of the unlocking piece (26) stretches into the first accommodating cavity (212) and can be abutted against the locking end (251) so that the locking end (251) moves towards the unlocking direction to unlock the wire by the locking piece (25);

The locking member (25) is not raised above the outer surface of the housing (21).

11. The adapter according to any one of claims 1,2, 4, 5, 8, 9, characterized in that a metal connection piece (3) is further provided in the adapter body (1), said metal connection piece (3) being connected to at least one of said busbar rows (14) for conducting at least one of said busbar rows connected to said metal connection piece (3).