Short circuit device

Abstract

The utility model relates to the field of low-voltage electric appliances, in particular to a short-circuit device, which is characterized in that when a short-circuit mechanism of the short-circuit device is in a short-circuit position, a first short-circuit part and a second short-circuit part of each short-circuit piece are respectively and electrically connected with a first matching part and a second matching part of a corresponding short-circuit matching pair in a plugging manner; the short-circuit piece is arranged in the short-circuit mechanism shell; one of the first short circuit part and the first matching part is a female head type plugging terminal, and the other one is a male head type plugging terminal; one of the second short circuit part and the second matching part is a female head type plugging terminal, and the other one is a male head type plugging terminal; the short circuit device is simple in structure and good in safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electrical apparatus field, concretely relates to a short circuit device. BACKGROUND

[0002] The existing electric meter box needs to be powered off after the electric circuit of the electric energy meter is powered off when replacing the electric energy meter, and is powered on again after replacing the electric energy meter, which affects the continuity of power supply. UTILITY MODEL CONTENTS

[0003] The utility model discloses a short circuit device, which overcomes at least one defect of the prior art and has simple structure and good safety.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A short circuit device includes a short circuit mechanism and a fixed short circuit matching mechanism. The short circuit mechanism includes a short circuit mechanism shell and a short circuit piece. The short circuit piece includes a first short circuit part and a second short circuit part connected in series with each other. Each short circuit piece moves synchronously under the driving of the short circuit mechanism shell. The short circuit matching mechanism includes a short circuit matching pair arranged one-to-one with the short circuit piece. The short circuit matching pair includes a first matching part and a second matching part arranged one-to-one. In the short circuit matching pair, the first matching part and the second matching part are respectively used to electrically connect one-to-one with an incoming line conductor and an outgoing line conductor. The incoming line conductor and the outgoing line conductor are used to connect to the incoming line terminal and the outgoing line terminal of the same phase of the electric energy meter, respectively. When the short circuit mechanism is in the short circuit position, the first short circuit part and the second short circuit part of each short circuit piece are respectively inserted and electrically connected with the first matching part and the second matching part of the corresponding short circuit matching pair.

[0006] The short circuit piece is arranged in the short circuit mechanism shell. In the first short circuit part and the first matching part, one is a female type plug-in terminal, and the other is a male type plug-in terminal. In the second short circuit part and the second matching part, one is a female type plug-in terminal, and the other is a male type plug-in terminal.

[0007] Further, the first short circuit part and the second short circuit part are both female type plug-in terminals. The first matching part and the second matching part are both male type plug-in terminals.

[0008] Further, the short circuit piece further includes a series connection conductor. The series connection conductor is connected and electrically connected with the first short circuit part and the second short circuit part at both ends, respectively.

[0009] Further, the series connection conductor includes a series connection conductor first arm, a series connection conductor middle segment, and a series connection conductor second arm connected in sequence. The series connection conductor first arm and the series connection conductor second arm are oppositely arranged and connected and electrically connected with the first short circuit part and the second short circuit part, respectively.

[0010] Further, the short-circuit mechanism shell comprises a mounting structure matched with the short-circuit piece one by one, the mounting structure comprises a first cavity for placing the first short-circuit part, a second cavity for placing the second short-circuit part, and a communication cavity for the series conductor to pass through, the communication cavity is communicated with the first cavity and the second cavity respectively at both ends, and the side wall of the first cavity is provided with a first insertion hole corresponding to the first short-circuit part and for the first matching part to pass through, and the side wall of the second cavity is provided with a second insertion hole corresponding to the second short-circuit part and for the second matching part to pass through.

[0011] Further, the first short-circuit part and the second short-circuit part are structurally identical, each comprising a first clamping piece, a connecting part, and a second clamping piece, the first clamping piece and the second clamping piece are oppositely arranged and respectively connected with both ends of the connecting part, the middle parts of the first clamping piece and the second clamping piece are protruded towards each other, and the first clamping piece and the second clamping piece as a whole present an X-shaped structure.

[0012] Further, one end of the first matching part is used for fixedly connecting to the incoming line connecting terminal which is plug-in electrically connected with the incoming line terminal of the electric energy meter, and the other end is plug-in matched with the first short-circuit part.

[0013] Further, the first matching part is a part of a first copper bar, the first copper bar is used as an incoming line conductor, one end is used for fixedly connecting and electrically connecting with the incoming line connecting terminal, and the other end is used for plug-in electrically connecting with the incoming line terminal of the incoming line switch.

[0014] Further, one end of the second matching part is used for fixedly connecting to the outgoing line connecting terminal which is plug-in electrically connected with the outgoing line terminal of the electric energy meter, and the other end is plug-in matched with the second short-circuit part.

[0015] Further, the second matching part is a part of a second copper bar, the second copper bar is used as an outgoing line conductor, one end is used for fixedly connecting and electrically connecting with the outgoing line connecting terminal, and the other end is used for plug-in electrically connecting with the incoming line terminal of the incoming line switch.

[0016] Further, the short-circuit matching pairs are arranged in the short-circuit matching mechanism, the first matching part and the second matching part are oppositely arranged along a first direction, each short-circuit matching pair is arranged in sequence and side by side along the first direction, and the first matching part and the second matching part are arranged in sequence and alternately along the first direction; the first short-circuit part and the first matching part are plug-in electrically connected along a direction d2, the second short-circuit part and the second matching part are plug-in electrically connected along the direction d2; and the direction d1 and the direction d2 are perpendicular to each other.

[0017] Further, the short-circuit mechanism shell is further used for limiting cooperation with a plug-in base carrying the electric energy meter and the short-circuit matching mechanism when the short-circuit mechanism is located at the short-circuit position, so as to keep the short-circuit mechanism at the short-circuit position.

[0018] The short circuit device has simple structure, the short circuit piece is arranged in the short circuit mechanism shell to improve safety during operation of the short circuit mechanism, the first short circuit part and the first matching part are electrically connected through plug-in connection, and the second short circuit part and the second matching part are electrically connected through plug-in connection, so that the short circuit mechanism can be kept in the short circuit position without external force; power supply continuity is ensured without power-off during replacement of the electric energy meter.

[0019] In addition, the first matching part is realized by a first copper bar in a plug-in base bearing the electric energy meter, has simple structure, is convenient to manufacture, simultaneously meets three functions, and is favorable for simplifying the structure of related devices (for example, the plug-in base).

[0020] In addition, the second matching part is realized by a second copper bar in a plug-in base bearing the electric energy meter, has simple structure, is convenient to manufacture, simultaneously meets three functions, and is favorable for simplifying the structure of related devices (for example, the plug-in base).

[0021] In addition, the short circuit mechanism shell is limited and matched with the plug-in base, and reliability of matching of the short circuit piece and the corresponding short circuit matching part is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structure schematic view of the short circuit device of the first embodiment of the utility model under a first visual angle;

[0023] Figure 2 is a structure schematic view of the short circuit device of the first embodiment of the utility model under a second visual angle;

[0024] Figure 3 is a structure schematic view of the short circuit mechanism of the utility model, wherein subgraph (31) shows the short circuit mechanism under one visual angle, and subgraph (32) shows the short circuit mechanism under another visual angle;

[0025] Figure 4 is a structure schematic view of the short circuit piece of the short circuit device of the first embodiment of the utility model;

[0026] Figure 5 is a structure schematic view of the short circuit mechanism shell of the short circuit device of the first embodiment of the utility model;

[0027] Figure 6 is a structure schematic view of the short circuit device of the first embodiment of the utility model under a third visual angle;

[0028] Figure 7 is a structure schematic view of the short circuit device of the second embodiment of the utility model under a first visual angle;

[0029] Figure 8 is a structure schematic view of the short circuit device of the second embodiment of the utility model under a fourth visual angle;

[0030] Figure 9 is a structural schematic view of the short circuit device of the second embodiment of the utility model under the fifth visual angle;

[0031] Figure 10 is a structural schematic view of the short circuit mechanism of the short circuit device of the second embodiment of the utility model, the buckle member is in the separated state with the short circuit mechanism shell;

[0032] Figure 11 is a structural schematic view of the short circuit mechanism of the short circuit device of the second embodiment of the utility model, the buckle member is accommodated in the buckle accommodation hole of the short circuit mechanism shell;

[0033] Figure 12 is another structural schematic view of the short circuit device of the second embodiment of the utility model under the first visual angle;

[0034] Figure 13 is a structural schematic view of the short circuit device of the second embodiment of the utility model under the sixth visual angle;

[0035] Figure 14 is a structural schematic view of the short circuit mechanism of the second embodiment of the utility model under the assembled state with the base, the buckle member limits the short circuit mechanism shell and the base together.

[0036] Explanation of reference signs

[0037] Short circuit mechanism 1, short circuit mechanism shell 2, short circuit member 3, series connection conductor first arm 4, series connection conductor second arm 5, series connection conductor middle section 6, series connection conductor 7, first short circuit part 8, second short circuit part 9, first cavity 10, second cavity 11, first jack 12, second jack 13, communication cavity 14, mounting structure 15, first matching part 16, second matching part 17, incoming line connection terminal 18, outgoing line connection terminal 19, elastic member 20, buckle accommodation hole 21, buckle member 22, third cavity 23, short circuit crossbeam 24, first copper bar 25, second copper bar 26, buckle beam 27, first buckle leg 28, second buckle leg 29, short circuit mechanism buckle hole 30, plug-in base 60, base side wall 61, base buckle hole 62. Specific implementation

[0038] The following embodiment is further illustrated in the embodiment of the short circuit device of the utility model given in the accompanying drawings. The short circuit device of the utility model is not limited to the description of the following embodiment.

[0039] As Figure 2 , 6The utility model discloses a short circuit device as shown in the figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 13, and the utility model discloses a short circuit device, it includes short circuit mechanism 1, short circuit mechanism 1 includes short circuit mechanism shell 2 and sets up short circuit piece 3 on short circuit mechanism shell 2, each short circuit piece 3 is driven under short circuit mechanism shell 2 and synchronously moves, and short circuit piece 3 includes the first short circuit part 8 and the second short circuit part 9 in series with each other. The short circuit device of the utility model, when needing to replace the electric energy meter (not shown in the drawing) borne on the plug-in base 60, each short circuit piece 3 can respectively electrically connect to the incoming line conductor and outgoing line conductor of the electric energy meter same phase short circuit, thereby not needing to power off in the process of replacing the electric energy meter, guarantee the continuity of power supply. Further, the incoming line conductor and the incoming line terminal of the electric energy meter one-to-one plug-in electric connection, and the incoming line conductor preferably includes the incoming line connection terminal 18 for being fixedly arranged on the plug-in base 60 and being used for one-to-one plug-in electric connection with the incoming line terminal of the electric energy meter, and / or, the outgoing line conductor and the outgoing line terminal of the electric energy meter one-to-one plug-in electric connection, and the outgoing line conductor preferably includes the outgoing line connection terminal 19 for being fixedly arranged on the plug-in base 60 and being used for one-to-one plug-in electric connection with the outgoing line terminal of the electric energy meter.

[0040] As shown in the figures Figures 1-6 It is the first embodiment of the short circuit device of the utility model.

[0041] As shown in the figures Figures 1-6As shown, the short-circuiting device of the first embodiment includes a short-circuiting mechanism 1 and a fixedly arranged short-circuiting mating mechanism. The short-circuiting mating mechanism includes short-circuiting mating pairs that mate one-to-one with the short-circuiting component 3. Each short-circuiting mating pair includes a first mating part 16 and a second mating part 17 arranged one-to-one. In the short-circuiting mating pair, the first mating part 16 and the second mating part 17 are respectively used for one-to-one electrical connection with the incoming conductor and the outgoing conductor. The incoming conductor and the outgoing conductor are respectively connected to the incoming terminal and the outgoing terminal of the same phase of the energy meter. That is, in the short-circuiting mating pair, the first mating part 16 is used for one-to-one electrical connection with the incoming conductor, and the second mating part 17 is used for one-to-one electrical connection with the outgoing conductor. The incoming conductor is connected one-to-one to the incoming terminal of a certain phase of the energy meter, and the outgoing terminal is connected one-to-one to the outgoing terminal of that phase of the energy meter. The shorting member 3 is disposed within the shorting mechanism housing 2; of the first shorting part 8 and the first mating part 16, one is a female plug-in terminal and the other is a male plug-in terminal; of the second shorting part 9 and the second mating part 17, one is a female plug-in terminal and the other is a male plug-in terminal; the first mating part 16 and the second mating part 17 are both male plug-in terminals. When the shorting mechanism 1 is in the shorting position, the first shorting part 8 and the second shorting part 9 of each shorting member 3 are respectively plugged into and electrically connected to the first mating part 16 and the second mating part 17 of the corresponding shorting mating pair; that is, when the shorting mechanism 1 is in the shorting position, among the corresponding shorting members 3 and shorting mating pairs, the first shorting part 18 is plugged into and electrically connected to the first mating part 16, and the second shorting part 9 is plugged into and electrically connected to the second mating part 17. In this embodiment, the first shorting part 8 and the second shorting part 9 are both female plug-in terminals, and the first mating part 16 and the second mating part 17 are both male plug-in terminals.

[0042] The short-circuit device of the first embodiment has a simple structure. The short-circuit member 3 is set in the short-circuit mechanism housing 2 to improve the safety when operating the short-circuit mechanism 1. The first short-circuit part 8 is plugged into the first mating part 16 and the second short-circuit part 9 is plugged into the second mating part 17, so that the short-circuit mechanism 1 can be kept in the short-circuit position without the help of external force.

[0043] like Figures 1-4 As shown in Figures 6 and 7, the shorting component 3 also includes a series conductor 7, the two ends of which are connected and electrically connected to the first shorting part 8 and the second shorting part 9, respectively.

[0044] like Figures 1-4 As shown in Figure 6, this is a first implementation of the series conductor 7: the series conductor 7 includes a first arm 4, a middle section 6, and a second arm 5 connected in sequence. The first arm 4 and the second arm 5 are arranged opposite to each other and are connected and electrically connected to the first shorting part 8 and the second shorting part 9, respectively. Further, the series conductor 7 is a one-piece structure and has an overall U-shaped structure. Further, the series conductor 7 is formed by cutting and bending a metal plate.

[0045] The second implementation of the series conductor 7 is as follows, the series conductor 7 is realized by soft wire or hard wire.

[0046] In the short circuit device of the first embodiment, the series conductor 7 preferably adopts the first implementation.

[0047] As shown in Figure 3 , 5 The short circuit mechanism shell 2 includes a mounting structure 15 matched with the short circuit piece 3 one by one, the mounting structure 15 includes a first cavity 10 for placing the first short circuit part 8, a second cavity 11 for placing the second short circuit part 9, and a communication cavity 14 for the series conductor 7 to pass through, the communication cavity 14 is communicated with the first cavity 10 and the second cavity 11 at both ends respectively, and the side wall of the first cavity 10 is provided with a first insertion hole 12 corresponding to the first short circuit part 8 and for the first matching part 16 to pass through, that is, the first matching part 16 is electrically connected with the corresponding first short circuit part 8 by inserting through the corresponding first insertion hole 12, and the side wall of the second cavity 11 is provided with a second insertion hole 13 corresponding to the second short circuit part 9 and for the second matching part 17 to pass through, that is, the second matching part 17 is electrically connected with the corresponding second short circuit part 9 by inserting through the corresponding second insertion hole 13. The mounting structure 15 is simple in structure and facilitates the assembly of the short circuit piece 3. Further, the series conductor intermediate section 6 of the series conductor 7 is placed in the communication cavity 14, and the series conductor first arm 4 and the series conductor second arm 5 are located in the first cavity 10 and the second cavity 11 respectively; the series conductor intermediate section 6 is preferably limited in cooperation with the side wall of the communication cavity 14 to prevent the short circuit piece 3 from moving along the insertion direction of the first short circuit part 8 and the first matching part 16 / the insertion direction of the second short circuit part 9 and the second matching part 17; a partition is arranged between the first cavity 10 and the second cavity 11, and the series conductor first arm 4 and the series conductor second arm 5 are preferably limited in cooperation with a pair of side walls of the partition to prevent the short circuit piece 3 from moving in the opposite direction of the first cavity 10 and the second cavity 11.

[0048] Further, the short circuit mechanism shell 2 includes two half shells arranged oppositely, and the two half shells are the same or different in structure, and the two half shells are spliced together to form the mounting structure 15.

[0049] As shown in Figures 1-4As shown in Figures 6 and 7, the first shorting portion 8 and the second shorting portion 9 have the same structure, both being busbar clamp-type plug-in terminals. Each includes a first clamping piece, a connecting portion, and a second clamping piece. The first and second clamping pieces are arranged opposite each other and connected to both ends of the connecting portion. The middle portions of the first and second clamping pieces protrude towards each other, and the first and second clamping pieces form an X-shaped structure. Further, the connecting portion has a U-shaped structure, with its two ends connected to one end of the first and second clamping pieces, respectively. Further, the first shorting portion 8 and the second shorting portion 9 are both integral structures. Further, the busbar clamp-type plug-in terminal is made of a metal plate with good elasticity and conductivity.

[0050] like Figures 1-2 As shown in Figure 6, one end of the first mating part 16 is fixedly connected to the incoming line connection terminal 18, which is plugged into and electrically connected to the incoming line terminal of the energy meter, and the other end is plugged into and mated with the first shorting part 8; that is, one end of the first mating part 16 is directly or indirectly fixedly connected to the incoming line connection terminal 18, and the incoming line connection terminal 18 is plugged into and electrically connected to the incoming line terminal of the energy meter.

[0051] Specifically, the first mating part 16 is part of the first copper busbar 25. One end of the first copper busbar 25 is used to be fixedly connected and electrically connected to the incoming line connection terminal 18, and the other end is used to be plugged into and electrically connected to the incoming line terminal of the incoming line switch. The first copper busbar 25 has a simple structure and is easy to manufacture. It also satisfies three functions at the same time—that is, it provides the first mating part 16 and connects to the incoming line connection terminal 18 and the incoming line switch respectively, which helps to simplify the structure of related devices (such as the plug-in base 60).

[0052] like Figures 1-2 As shown in Figure 6, one end of the second mating part 17 is fixedly connected to the outgoing connection terminal 19, which is plugged into and electrically connected to the outgoing terminal of the energy meter, and the other end is plugged into and mated with the second shorting part 9; that is, one end of the second mating part 17 is directly or indirectly fixedly connected to the outgoing connection terminal 19, and the outgoing connection terminal 19 is plugged into and electrically connected to the outgoing terminal of the energy meter.

[0053] Specifically, the second mating part 17 is part of the second copper busbar 26. One end of the second copper busbar 26 is used for fixed connection and electrical connection with the outgoing connection terminal 19, and the other end is used for plug-in electrical connection with the incoming terminal of the outgoing switch. The second copper busbar 26 has a simple structure and is easy to manufacture. It also satisfies three functions at the same time—that is, it provides the second mating part 17 and connects to the outgoing connection terminal 19 and the outgoing switch respectively, which helps to simplify the structure of related devices (such as the plug-in base 60).

[0054] like Figures 1-3As shown in Figure 6, in the short-circuit mating pair, the first mating part 16 and the second mating part 17 are arranged at intervals relative to each other along the first direction; in the short-circuit mating mechanism, each short-circuit mating pair is arranged side by side at intervals along the first direction, and the first mating part 16 and the second mating part 17 are arranged alternately along the first direction.

[0055] In this embodiment of the shorting device, when the shorting mechanism 1 is in the shorting position, the shorting mechanism housing 2 is also used to limit the engagement with the insertion base 60, keeping the shorting mechanism 1 in the shorting position, which helps to improve the reliability of the engagement between the shorting component 3 and the corresponding shorting engagement pair. Furthermore, the shorting mechanism housing 2 and the insertion base 60 are limited in engagement using existing technology; after the shorting mechanism 1 moves out of the shorting position, the limiting engagement between the shorting mechanism housing 2 and the insertion base 60 is released.

[0056] In this embodiment of the shorting device, the number of shorting elements 3 and shorting mating pairs can be increased or decreased as needed. For example... Figures 1-5 As shown, in this embodiment, when the short-circuiting device is used in conjunction with a two-phase (i.e., P+N type) energy meter—that is, when the short-circuiting device is used to short-circuit a two-phase energy meter—the number of short-circuiting components 3 and the number of short-circuiting mating pairs are both 2. For example... Figure 6 As shown, when the short-circuiting device in this embodiment is used in conjunction with a four-phase (i.e., three-phase four-wire) energy meter—that is, when the short-circuiting device is used to short-circuit a four-phase energy meter—the number of short-circuiting components 3 and the number of short-circuiting mating pairs are both 4.

[0057] like Figures 7-13 The figure shown is a second embodiment of the short-circuit device of this utility model.

[0058] like Figures 7-13 As shown, the short-circuiting device of the second embodiment includes a short-circuiting structure 1 and a fixedly arranged short-circuiting mating mechanism. The short-circuiting mating mechanism includes short-circuiting mating pairs arranged one-to-one with the short-circuiting elements 3. Each short-circuiting mating pair includes a first mating part 16 and a second mating part 17 arranged one-to-one. In the short-circuiting mating pair, the first mating part 16 and the second mating part 17 are used to electrically connect to the incoming conductor and the outgoing conductor, respectively. The incoming conductor and the outgoing conductor are respectively connected to the incoming terminal and the outgoing terminal of the same phase of the energy meter; that is, in the short-circuiting mating pair, the first mating part 16 is used to electrically connect one-to-one with the incoming conductor, and the second mating part 17 is used to electrically connect one-to-one with the outgoing conductor. The incoming conductor is connected one-to-one to the incoming terminal of a certain phase of the energy meter, and the outgoing conductor is used to connect one-to-one to the outgoing terminal of that phase of the energy meter. When the short-circuiting device 1 is in the short-circuit position, the first short-circuiting part 8 of each short-circuiting element 3...

[0059] The short-circuiting device of the second embodiment has a simple structure and is easy to operate.

[0060] like Figures 7-13As shown, the first short-circuit part 8 is a first short-circuit pin, one end of which is located in the short-circuit mechanism shell 2 and the other end is in abutting electrical connection with the first matching part 16; the second short-circuit part 9 is a second short-circuit pin, one end of which is located in the short-circuit mechanism shell 2 and the other end is in abutting electrical connection with the second matching part 17.

[0061] As shown, Figures 7-13 the short-circuit piece 3 is movably arranged relative to the short-circuit mechanism shell 2; the short-circuit mechanism 1 further comprises an elastic piece 20; when the short-circuit mechanism 1 is in the short-circuit position, the elastic piece 20 acts on the short-circuit piece 3, so that the first short-circuit part 8 is pressed against the corresponding first matching part 16 and the second short-circuit part 9 is pressed against the corresponding second matching part 17.

[0062] As shown, Figures 7-13 the first kind of matching mode between the elastic piece 20 and the short-circuit piece 3 is as follows: the short-circuit piece 3 further comprises a bearing part, one end of the first short-circuit part 8 and one end of the second short-circuit part 9 are fixedly connected with the bearing part; the elastic piece 20 is a spring, one end of which is matched with the bearing part and the other end is matched with the short-circuit mechanism shell 2. The elastic piece 20 ensures the reliable contact force between the first short-circuit part 8 and the first matching part 16 and between the second short-circuit part 9 and the second matching part 17, and ensures the reliable conduction of the short-circuit piece 3 and the corresponding short-circuit matching pair.

[0063] Specifically, the short-circuit mechanism shell 2 comprises a mounting structure 15 matched with the short-circuit piece 3 in one-to-one, the mounting structure 15 comprises a third cavity 23, the bearing part is slidably arranged in the third cavity 23, the side wall of the third cavity 23 is provided with a first insertion hole 12 through which the first short-circuit part 8 protrudes outside the short-circuit mechanism shell 2 for abutting electrical connection with the first matching part 16, and a second insertion hole 13 through which the second short-circuit part 9 protrudes outside the short-circuit mechanism shell 2 for abutting electrical connection with the second matching part 17. Further, the elastic piece 20 is a compression spring arranged between the side wall of the third cavity 23 and the bearing part. Further, the short-circuit piece 3 further comprises a short-circuit cross beam 24, the first short-circuit part 8, the short-circuit cross beam 24 and the second short-circuit part 9 are sequentially connected, the first short-circuit part 8 and the second short-circuit part 9 are fixedly connected with the short-circuit cross beam 24 and are connected in series through the short-circuit cross beam 24, and the short-circuit cross beam 24 serves as the bearing part. Further, the first short-circuit part 8, the second short-circuit part 9 and the short-circuit cross beam 24 are of an integral structure or a split structure, in this embodiment, the three are preferably of an integral structure, and the whole is in a U-shaped structure and is cut and bent from a conductive metal plate.

[0064] Specifically, a limiting surface is formed between the first insertion hole 12 and the second insertion hole 13, and the elastic piece 20 acts on the short-circuit piece 3 so that the short-circuit cross beam 24 abuts against the limiting surface.

[0065] It should be pointed out that the elastic member 20 is not limited to a spring, but can also be a spring sheet or other elastic component that meets the functional requirements.

[0066] The following is another implementation of the elastic member 20 cooperating with the short-circuit member 3: the mounting structure 15 includes a fourth cavity for mounting the first short-circuit part 8 and a fifth cavity for mounting the second short-circuit part 9, the first short-circuit part 8 is slidably arranged in the fourth cavity at one end (the first inner end) and protrudes outside the short-circuit mechanism shell 2 at the other end through the first insertion hole 12, the first insertion hole 12 is in opposite communication with the fourth cavity, the second short-circuit part 9 is slidably arranged in the fifth cavity at one end (the second inner end) and protrudes outside the short-circuit mechanism shell 2 at the other end through the second insertion hole 13, the second insertion hole 13 is in opposite communication with the fifth cavity; the elastic member 20 is a compression spring, one elastic member 20 is arranged between the first inner end and the side wall of the fourth cavity, and the first inner end further cooperates with the short-circuit mechanism shell 2 to prevent the first short-circuit part 8 from coming out, and the other elastic member 20 is arranged between the second inner end and the side wall of the fifth cavity, and the second inner end further cooperates with the short-circuit mechanism shell 2 to prevent the second short-circuit part 9 from coming out. Alternatively, the elastic member 20 can also be a V-shaped spring, the middle part of which is fixedly arranged and the two arms thereof always abut against the first inner end and the second inner end, respectively.

[0067] As shown in Figures 7-13 , the first cooperating part 16 is assumed by the incoming line connection terminal 18 for plugging and electrically connecting with the incoming line terminal of the electric energy meter and fixedly arranged on the plugging base 60 carrying the electric energy meter; that is, the first cooperating part 16 is assumed by the incoming line connection terminal 18, which is fixedly arranged on the plugging base 60 and used for plugging and electrically connecting with the incoming line terminal of the electric energy meter. Further, the incoming line connection terminal 18 is used for plugging and electrically connecting with the incoming line terminal of the electric energy meter at one end, and is fixedly arranged on the plugging base 60 and used as the first cooperating part 16 at the other end.

[0068] As other embodiments of the first cooperating part 16, the first cooperating part 16 can also be assumed by the first copper bar 25 in the short-circuit device of the first embodiment, or the first cooperating part 16 is a structure independent of the incoming line connection terminal 18 and the first copper bar 25, the first cooperating part 16 is electrically connected with the incoming line connection terminal 18 or the first copper bar 25, or the first cooperating part 16 is an independently arranged structure electrically connected with the corresponding incoming line conductor.

[0069] As shown in Figures 7-13As shown, the second matching part 17 is assumed by the outlet connection terminal 19 which is arranged fixedly on the plug-in base 60 and is used for plug-in electrical connection with the outlet terminal of the electric energy meter; that is, the second matching part 17 is assumed by the outlet connection terminal 19 which is arranged fixedly on the plug-in base 60 and is used for plug-in electrical connection with the outlet terminal of the electric energy meter. Further, the outlet connection terminal 19 is used for plug-in electrical connection with the outlet terminal of the electric energy meter at one end, and is arranged fixedly on the plug-in base 60 and is used as the first matching part 16 at the other end.

[0070] As other embodiments of the second matching part 17, the second matching part 17 can also be assumed by the second copper bar 26 in the short-circuit device of the second embodiment, or the second matching part 17 is a structure independent of the outlet connection terminal 19 and the second copper bar 26, the second matching part 17 is electrically connected with the outlet connection terminal 18 or the second copper bar 26, or the second matching part 17 is an independently arranged structure electrically connected with the corresponding outlet conductor.

[0071] In the short-circuit device of the second embodiment, when the short-circuit mechanism 1 is in the short-circuit position, the short-circuit mechanism shell 2 is also used for limiting cooperation with the plug-in base 60 which carries the electric energy meter and the short-circuit cooperation mechanism, so as to keep the short-circuit mechanism 1 in the short-circuit position without manual operation of the operator.

[0072] Specifically, as shown in Figures 8-11 , 13-14, the short-circuit mechanism 1 further comprises two groups of buckle members 22, the buckle member 22 comprises a first buckle leg 28; the short-circuit mechanism shell 2 further comprises two short-circuit mechanism buckle holes 30 arranged respectively at both ends thereof; when the short-circuit mechanism 1 is in the short-circuit position, the short-circuit mechanism shell 2 is used for being inserted between the two oppositely arranged base side walls 61 of the plug-in base 60, the two short-circuit mechanism buckle holes 30 are used for corresponding cooperation with the base buckle holes 62 arranged on the pair of side walls of the plug-in base 60 respectively, and the first buckle leg 28 is used for being inserted into the corresponding short-circuit mechanism buckle hole 30 and base buckle hole 62; that is, when the short-circuit mechanism 1 is in the short-circuit position, the short-circuit mechanism shell 2 is inserted between the two oppositely arranged base side walls 61 of the plug-in base 60, so that the short-circuit member 3 also enters the working position under the driving of the short-circuit mechanism shell 2, the base side wall 61 is provided with the base buckle hole 62, the two short-circuit mechanism buckle holes 30 of the short-circuit mechanism shell 2 are oppositely cooperated with the two base buckle holes 62 respectively, and the first buckle leg 28 is inserted into the corresponding short-circuit mechanism buckle hole 30 and base buckle hole 62, so as to keep the relative position of the short-circuit mechanism 1 and the plug-in base 60 stable.

[0073] Further, the buckle member 22 further comprises a buckle beam 27 and a second buckle leg 29, the buckle beam 27 is respectively connected with the first buckle leg 28 and the second buckle leg 29 at both ends, and the first buckle leg 28 and the second buckle leg 29 are oppositely arranged; the buckle member 22 is preferably in a U-shaped structure; when the short-circuiting mechanism 1 is in the short-circuiting position, the buckle beams 27 of the two groups of buckle members 22 are respectively arranged on both sides of the two base side walls 61 of the plug-in base 60, and the second buckle leg 29 and the short-circuiting matching mechanism are respectively located on both sides of the short-circuiting mechanism shell 2, and the second buckle leg 29 is arranged on one side of the short-circuiting mechanism shell 2 and the corresponding base side wall 61; that is, when the short-circuiting mechanism 1 is in the short-circuiting position, the buckle beams 27 of the two groups of buckle members 22 are respectively located on both sides of the two base side walls 61 of the plug-in base 60, and the second buckle leg 29 and the short-circuiting matching mechanism are respectively located on both sides of the short-circuiting mechanism shell 2, and the second buckle leg 29 is located on the same side of the short-circuiting mechanism shell 2 and the corresponding base side wall 61.

[0074] The buckle member 22 has a simple structure, and the installation operation of the buckle member 22 with the short-circuiting mechanism 1 and the plug-in base 60 is simple and easy to operate, which not only ensures that the short-circuiting mechanism 1 is reliably kept in the short-circuiting position, but also simplifies the operation.

[0075] As other embodiments of the limiting cooperation between the short-circuiting mechanism shell 2 and the plug-in base 60, the short-circuiting mechanism shell 2 and the plug-in base 60 are limited and cooperated through a limiting structure; the limiting structure comprises elastic clamping arms and clamping grooves, two groups of elastic clamping arms are respectively arranged on the two base side walls 61 of the plug-in base 60, and two groups of clamping grooves are respectively arranged on both ends of the short-circuiting mechanism shell 2, and when the short-circuiting mechanism 1 is in the short-circuiting position, the two groups of elastic clamping arms are respectively clamped and cooperated with the two groups of clamping grooves; or, the limiting structure comprises clamping tables arranged on the plug-in base 60 and clamping grooves arranged on the short-circuiting mechanism shell 2, two groups of clamping tables are respectively arranged on the two sides of the two base side walls 61 arranged oppositely, and two groups of clamping grooves are respectively arranged on both ends of the short-circuiting mechanism 2, and when the short-circuiting mechanism 1 is in the short-circuiting position, the two groups of clamping tables are respectively clamped into the two groups of clamping grooves. Those skilled in the art can also realize the limiting structure in other various ways using conventional technical means in the art, which will not be described one by one here.

[0076] In the short-circuiting device of the present embodiment, the number of short-circuiting members 3 and short-circuiting matching pairs can be increased or decreased as needed. As shown in Figures 7-11 When the short-circuiting device of the present embodiment is used to cooperate with two-phase (i.e. P+N type) electric energy meters—i.e. when the short-circuiting device is used to short-circuit two-phase electric energy meters, the number of short-circuiting members 3 and short-circuiting matching pairs is 2. As shown in Figures 12-13 When the short-circuiting device of the present embodiment is used to cooperate with four-phase (i.e. three-phase four-wire type) electric energy meters—i.e. when the short-circuiting device is used to short-circuit four-phase electric energy meters, the number of short-circuiting members 3 and short-circuiting matching pairs is 4.

[0077] The third embodiment of the short circuit device of the present application is different from the short circuit device of the first embodiment in that the first short circuit part 8 and the second short circuit part 9 are both male plug-in terminals, and the first matching part 16 and the second matching part 17 are both female plug-in terminals. It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings or the orientation or positional relationship in use, and are only for the convenience of description, and do not indicate that the device or element referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating relative importance.

[0078] The above is a further detailed description of the present application in combination with specific preferred embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, a number of simple deductions or substitutions can be made without departing from the concept of the present application, and all of these should be considered as falling within the protection scope of the present application.

Claims

1. A short-circuit device comprising a short-circuit mechanism (1) and a fixed short-circuit matching mechanism; the short-circuit mechanism (1) comprises a short-circuit mechanism shell (2) and a short-circuit piece (3), the short-circuit piece (3) comprises a first short-circuit part (8) and a second short-circuit part (9) connected in series with each other, each short-circuit piece (3) moves synchronously under the driving of the short-circuit mechanism shell (2); the short-circuit matching mechanism comprises a short-circuit matching pair arranged one-to-one with the short-circuit piece (3), the short-circuit matching pair comprises a first matching part (16) and a second matching part (17) arranged one-to-one; in the short-circuit matching pair, the first matching part (16) and the second matching part (17) are respectively used to be electrically connected one-to-one with an incoming line conductor and an outgoing line conductor, the incoming line conductor and the outgoing line conductor are respectively connected to the incoming terminal and the outgoing terminal of the same phase of an electric energy meter; when the short-circuit mechanism (1) is in a short-circuit position, the first short-circuit part (8) and the second short-circuit part (9) of each short-circuit piece (3) are respectively plugged and electrically connected with the first matching part (16) and the second matching part (17) of the corresponding short-circuit matching pair; characterized in that the short-circuit piece (3) is arranged in the short-circuit mechanism shell (2); in the first short-circuit part (8) and the first matching part (16), one is a female plug-in terminal and the other is a male plug-in terminal; in the second short-circuit part (9) and the second matching part (17), one is a female plug-in terminal and the other is a male plug-in terminal.

2. The device of claim 1, wherein: The first short-circuit part (8) and the second short-circuit part (9) are both female plug-in terminals; the first matching part (16) and the second matching part (17) are both male plug-in terminals.

3. The device of claim 2, wherein: The short-circuit piece (3) further comprises a series conductor (7), the series conductor (7) is connected and electrically connected with the first short-circuit part (8) and the second short-circuit part (9) at both ends.

4. The device of claim 3, wherein: The series conductor (7) comprises a series conductor first arm (4), a series conductor middle segment (6) and a series conductor second arm (5) connected in sequence, the series conductor first arm (4) and the series conductor second arm (5) are oppositely arranged and connected and electrically connected with the first short-circuit part (8) and the second short-circuit part (9) respectively.

5. The device of claim 3, wherein: The short-circuit mechanism shell (2) comprises a mounting structure (15) matched one-to-one with the short-circuit piece (3), the mounting structure (15) comprises a first cavity (10) in which the first short-circuit part (8) is arranged, a second cavity (11) in which the second short-circuit part (9) is arranged, and a communication cavity (14) through which the series conductor (7) passes, the communication cavity (14) communicates with the first cavity (10) and the second cavity (11) at both ends, a first insertion hole (12) corresponding to the first short-circuit part (8) is arranged on the side wall of the first cavity (10) and through which the first matching part (16) passes, and a second insertion hole (13) corresponding to the second short-circuit part (9) is arranged on the side wall of the second cavity (11) and through which the second matching part (17) passes.

6. The device of claim 2, wherein: The first short-circuit part (8) and the second short-circuit part (9) are identical in structure and each include a first clamping piece, a connecting part and a second clamping piece, the first clamping piece and the second clamping piece are oppositely arranged and connected to the two ends of the connecting part, the middle parts of the first clamping piece and the second clamping piece are protruded towards each other, and the first clamping piece and the second clamping piece as a whole have an X-shaped structure.

7. The device of claim 2, wherein: The first fitting part (16) is fixedly connected to the incoming line connecting terminal (18) which is electrically connected to the incoming line terminal of the electric energy meter at one end and is in plug-in cooperation with the first short-circuit part (8) at the other end.

8. The device of claim 7, wherein: The first fitting part (16) is a part of the first copper bar (25) which is used as an incoming line conductor, is fixedly connected to the incoming line connecting terminal (18) at one end and is electrically connected to the incoming line terminal of the incoming line switch at the other end.

9. The device of claim 2, wherein: The second fitting part (17) is fixedly connected to the outgoing line connecting terminal (19) which is electrically connected to the outgoing line terminal of the electric energy meter at one end and is in plug-in cooperation with the second short-circuit part (9) at the other end.

10. The device of claim 9, wherein: The second fitting part (17) is a part of the second copper bar (26) which is used as an outgoing line conductor, is fixedly connected to the outgoing line connecting terminal (19) at one end and is electrically connected to the outgoing line terminal of the outgoing line switch at the other end.

11. The device of claim 1, wherein: In the short-circuit cooperation pair, the first fitting part (16) and the second fitting part (17) are oppositely and spacedly arranged along the first direction; in the short-circuit cooperation mechanism, each short-circuit cooperation pair is sequentially and spacedly arranged along the first direction, and the first fitting part (16) and the second fitting part (17) are sequentially and alternately arranged along the first direction; the first short-circuit part (8) and the first fitting part (16) are in plug-in electrical connection along the direction d2, and the second short-circuit part (9) and the second fitting part (17) are in plug-in electrical connection along the direction d2; the direction d1 and the direction d2 are perpendicular to each other.

12. The device of claim 1, wherein: The short-circuit mechanism shell (2) is also used for limiting cooperation with the plug-in base (60) which carries the electric energy meter and the short-circuit cooperation mechanism when the short-circuit mechanism (1) is located at the short-circuit position, so as to keep the short-circuit mechanism (1) at the short-circuit position.

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