CN212364391U

CN212364391U - Electric energy meter

Info

Publication number: CN212364391U
Application number: CN202021046175.3U
Authority: CN
Inventors: 陈太平; 肖五生; 倪烨飞
Original assignee: Holley Technology Co Ltd
Current assignee: Holley Technology Co Ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-01-15
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses an electric energy meter, including mutual-inductor, base and current component, current component includes two sheetmetals and connecting conductor, the sheetmetal includes wiring end and link, the wiring end sets up in the outside of base, be used for being connected with power cord or load, the link sets up in the inside of base, connecting conductor passes the coil of mutual-inductor and connects the link of two sheetmetals, be provided with at least one fixed orifices on the sheetmetal, be used for fixing current component and base through bolt or screw, after bolt or screw are screwed up, current component is pressed from both sides tightly with the base simultaneously, although there is the clearance between bolt or screw and the fixed orifices, but the influence is little, difficult appearance is not hard up. The machine can realize the screwing of bolt or screw, does not need artifical the realization, and bolt and screw reuse. Therefore, the current assembly and the base are fixed stably and are not easy to loosen, manual implementation links are reduced, the bolts and the screws can be repeatedly used, and resources are saved.

Description

Electric energy meter

Technical Field

The utility model relates to an electric power tech field especially relates to an electric energy meter.

Background

With the rapid development of electric power technology in China and the continuous improvement of electric power systems, the electricity utilization of people in daily life becomes more and more convenient. The electric energy meter is used as an electric appliance element for counting the use condition of electric energy by each user, and the demand and the use amount are quite high.

The power line and the load are not directly connected, and the load is connected after the power line and the load pass through the electric energy meter, so that the electric quantity is measured. In an electric energy meter, a current assembly is included, which generally comprises two conductive metal sheets and a connecting conductor. Each conductive metal sheet comprises a wiring end and a connecting end, and the wiring end of each conductive metal sheet is arranged outside the base and is respectively used for being connected with a power supply and a load. The connecting end of each conductive metal sheet is arranged in the base and is respectively connected with the two ends of the connecting conductor, and the connecting conductor penetrates through the mutual inductor and the two ends of the connecting conductor are respectively connected with the two conductive metal sheets.

In the production process, need be fixed in the base with the electric current subassembly, current electric energy meter, its fixed mode is set up the electrically conductive sheetmetal of electric current subassembly into the T type usually, passes the jack on the base with less one end, and the wiring end is located the table outside and electrically conductive sheetmetal is provided with the fixed orifices on the position of adjacent base, thereby insert a split pin by this fixed orifices and fix the electric current subassembly, then bend off with the fingers and thumb the pin of split pin, prevent that the split pin from droing. The fixing mode of the current assembly and the base in the ammeter has many defects, such as difficulty in controlling the thickness of the split pin, too thick installation, too thin installation, loose fixation due to a gap between the split pin and the jack, and the production process is troublesome because the split pin and the jack are manually bent.

Therefore, a new fixing method for the current component and the base is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric energy meter, the current component in this electric energy meter is fixed more firm with the base, and the installation is simple, the fastener repeatedly usable who adopts.

In order to solve the technical problem, the utility model provides an electric energy meter, including mutual-inductor 1, current subassembly and base 3, the current subassembly includes two sheetmetals 2 and connecting conductor 6, sheetmetal 2 includes wiring end 4 and link 5, wiring end 4 set up in the outside of base 3 for be connected with power cord or load, link 5 set up in the inside of base 3, connecting conductor 6 passes mutual-inductor 1's coil is with two the link 5 of sheetmetal 2 is connected, be provided with at least one fixed orifices on sheetmetal 2, be used for will through bolt or screw current subassembly with base 3 is fixed.

Preferably, the metal sheet 2 has a first extension piece 7, an extension direction of the first extension piece 7 is perpendicular to an extension direction of the terminal 4, and the fixing hole is provided to the first extension piece 7.

Preferably, the plane of the first extension 7 is perpendicular to the direction of extension of the terminal 4.

Preferably, the metal sheet 2 has two second extending members, the extending directions of the two second extending members are both perpendicular to the extending direction of the terminal 4, the number of the fixing holes is two, and the two fixing holes are respectively arranged on the two second extending members.

Preferably, the two second extensions are symmetrical with respect to the metal sheet 2.

Preferably, the first extension 7 is arranged inside the base 3.

Preferably, said second extension is arranged inside said seat 3.

Preferably, the current assembly and the base 3 are fixed by bolts, and nuts used in cooperation with the bolts are fixed to the base 3.

Preferably, a relay is further included, the connecting conductor 6 including a first connecting conductor and a second connecting conductor, and a contact of the relay being disposed between the first connecting conductor and the second connecting conductor.

The utility model provides an electric energy meter, including the mutual-inductor, base and current component, current component includes two sheetmetals and connecting conductor, the sheetmetal includes wiring end and link, the wiring end sets up in the outside of base, be used for being connected with power cord or load, the link sets up in the inside of base, connecting conductor passes the coil of mutual-inductor and connects the link of two sheetmetals, be provided with at least one fixed orifices on the sheetmetal, a mode for fixing current component and base through bolt or screw, because this current component adopts bolt or screw is fixed with the base, after bolt or screw tightening, current component is pressed from both sides tightly simultaneously with the base, with this fixed, although there is the clearance between bolt or screw and the fixed orifices, nevertheless the influence is little, difficult appearance is not hard up. In the production process, the machine can realize the screwing of the bolt and the nut or the bolt and the screw hole, the manual operation is not needed, the production process is simple, and the bolt can be repeatedly used after being disassembled. Therefore, the current assembly in the electric energy meter is firmly fixed with the base, is not easy to loosen, has a simple production process, reduces manual implementation links, and can be repeatedly disassembled and reused by using bolts and screws, so that resources are saved.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without inventive work.

Fig. 1 is a structural diagram of an interior of a base of an electric energy meter provided by the present application;

FIG. 2 is a block diagram of an exterior of a base of an electric energy meter provided herein;

wherein, 1 is the mutual-inductor, 2 is the sheetmetal, 3 is the base, 4 are the wiring end, 5 are the link, 6 are the connecting conductor, 7 are first extension pieces.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, the ordinary skilled in the art can obtain all other embodiments without creative work, which all belong to the protection scope of the present invention.

The core of the application is to provide an electric energy meter.

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

It should be noted that, in the present application, there is no specific type limitation on the electric energy meter, and the electric energy meter may be a single-phase electric energy meter, a three-phase three-wire electric energy meter, or a three-phase four-wire electric energy meter. There is no limit to the level of accuracy of the power meter. The mutual inductor mentioned in the application can be a voltage mutual inductor and also can be a current mutual inductor, and the selection is carried out according to the actual situation and the measuring principle of the electric energy meter.

As shown in fig. 1 and 2, the electric energy meter comprises a mutual inductor 1, a current assembly and a base 3, wherein the current assembly comprises two metal sheets 2 and a connecting conductor 6, the metal sheets 2 comprise a wiring terminal 4 and a connecting end 5, the wiring terminal 4 is arranged outside the base, the connecting end 5 is arranged inside the base, the connecting conductor 6 penetrates through a coil of the mutual inductor 1 to connect the connecting ends 5 of the two metal sheets 2, and at least one fixing hole is formed in the metal sheets 2.

In a specific implementation, the terminal 4 of one metal sheet 2 of the current assembly is connected to a power supply line, the terminal 4 of the other metal sheet 2 is connected to a load, and the power supply line is connected to the load through the terminal 4 of one metal sheet 2, the connection terminal 5 of one metal sheet 2, the connection conductor 6, the connection terminal 5 of the other metal sheet 2, and the terminal 4 of the other metal sheet 2 in this order, i.e., through the current assembly. Since the connecting conductor 6 passes through the transformer 1, the transformer 1 can collect the electric signal passing through the connecting conductor 6, and the electric signal is proportionally changed by utilizing the electromagnetic induction principle to measure the electric energy. The current assembly is fixed to the base 3 by bolts or screws through fixing holes provided in the metal sheet 2.

It should be noted that, in this embodiment, the kind of metal of the metal sheet 2 is not limited, and may be aluminum, copper or other metal materials, and according to the cost and the performance requirement of the metal sheet 2, for example: the metal species is selected for mechanical strength, electrical conductivity, thermal conductivity, melting point, erosion resistance, and the like. The shape and thickness of the metal sheet 2 are not particularly limited in this embodiment, but the terminal 4 of the metal sheet 2 passes through the through hole on the base 3 when being disposed outside the base 3, the shape of the metal sheet 2 should not affect the normal installation of the metal sheet 2, and the thickness should be moderate, should not be too thick, too thick installation is difficult, should not be too thin, too thin strength is too low, and it is easy to bend and deform, and even break. The material of the connection conductor 6 is not particularly limited, and the material is not limited to be the same as the material of the metal piece 2, and may be metal or another conductive material, and also the cost and the performance requirements of the connection conductor 6 are considered, and whether the material is easily connected to the metal piece 2 is also considered. In a preferred embodiment, the connecting conductor 6 is made of a metal material, and the connecting conductor 6 is welded when being connected with the connecting end 5 of the metal sheet 2, so that the connection is firmer and the phenomenon of poor contact caused by loosening is not easy to occur.

It should be noted here that in fig. 2, a wiring hole is provided in the terminal 4 of the metal plate 2 to facilitate connection of the terminal 4 to a power supply line or a load, while in other embodiments, the terminal 4 may be connected to the power supply line or the load by providing a terminal or a wiring groove or the like. The shape, size and specific position of the wiring hole are not limited, the shape can be rectangular or circular, and the size and the specific position are convenient for wiring. In this embodiment, there is no particular limitation on the lengths of the terminal 4 and the connecting end 5 of the metal sheet 2 located outside the base 3 and inside the base 3, which facilitates installation and wiring.

It should be noted that the specific position of the fixing hole on the current assembly is not limited in this embodiment. It is noted that the fixing holes provided in the metal sheet 2 in fig. 1 are located inside the base 3, while in other embodiments the fixing holes may be located outside the base 3. In this embodiment, the shape and the structure of base 3 cooperate with the shape and the structure setting of current component, if when utilizing bolt fixed current component and base 3, the bolt passes the hole that the cooperation set up on this fixed orifices and the base 3 and twists with the nut, when utilizing the screw fixed current component, the screw that the screw passed the cooperation set up on fixed orifices and the base 3 twists, the size and the position cooperation current component that the through-hole that is used for wiring end 4 of sheetmetal 2 to pass on the base 3 set up simultaneously, the shape and the structure of base 3 are convenient for current component's installation and fixed. The material of the base 3 is not limited in this embodiment, and abs plastic, pp plastic, pc plastic, bakelite, etc. are generally used.

It should be noted that, in the present embodiment, there is no limitation on the way of fixing the current component and the base 3 by bolts or screws. If the mode of bolt fixing is adopted, a hole for a bolt to pass through needs to be arranged on the base 3 in a matched mode, the bolt is screwed up through the fixing hole and the hole in a matched mode with the nut, but the mode is slightly troublesome in installation, the bolt and the nut need to be controlled simultaneously, and the nut used in the embodiment is small and easy to lose. If adopt the mode of fix with screw, need the cooperation to set up the screw on base 3, the screw cooperates through the screw on fixed orifices and the base 3 and screws up, and this kind of fixed mode also has some shortcomings, because the material variability that base 3 adopted usually, intensity is low slightly, dismantles several times after, the screw can warp for the screw can't screw up with the screw. Therefore, as a preferred embodiment, the current component and the base 3 are fixed by bolts, and nuts used in cooperation with the bolts are fixed on the base 3, so that the installation is simple compared with the original bolt fixing mode, the nuts are not easy to lose, and the phenomenon that the nuts cannot be screwed due to deformation is not easy to occur compared with the bolt fixing mode.

Further, when fixing current component and base through bolt or screw, the gasket and the bullet pad of the corresponding model of bolt or screw cooperation are used together and are realized fixed, so make fixed more firm, difficult production is not hard up.

On the basis of the above embodiment, the metal sheet 2 in the present embodiment has the first extending piece 7, as shown in fig. 1, the extending direction of the first extending piece 7 is perpendicular to the extending direction of the terminal 4, and the fixing hole is provided in the first extending piece 7.

In a specific implementation, the current assembly is fixed to the base 3 by bolts or screws through fixing holes provided on the first extension. Correspondingly, because the fixed orifices has set up on first extension 7, the fixed orifices position has changed, the structure of base 3 needs to correspond the change, if when the mode that adopts the bolt is fixed, the position that the cooperation set up the hole on base 3 needs to correspond the change and use with the cooperation fixed orifices, when the mode that adopts the screw is fixed, the position that the cooperation set up the screw on base 3 needs to correspond the change and uses with the cooperation fixed orifices, if take bolt fastening mode and the nut that the cooperation was used when being fixed in base 3, the position that the nut is fixed needs to correspond the change and uses with the cooperation fixed orifices.

After the bolt or the screw is tightened, the current component and the base 3 are clamped simultaneously to be fixed, however, considering that a gap exists between the bolt or the screw and the fixing hole, the current component is easy to loosen in a direction parallel to a plane where the gap exists, and the reason for loosening is usually from the terminal 4 positioned outside the base 3, the terminal 4 vibrates or displaces after being subjected to external force, so that the loosening is caused, and therefore the extending direction of the first extending part 7 is perpendicular to the extending direction of the terminal 4, so that the loosening of the current component caused by the gap is reduced.

Further, the first extension 7 is in a plane perpendicular to the direction of extension of the terminal 4. When the plane of the extension is perpendicular to the direction of extension of the terminals 4, it is easy to think that the plane of the gap is also perpendicular to the direction of extension of the terminals 4, and the influence of the terminals 4 located outside the base 3 on whether or not the looseness is generated is minimal.

In addition to the above, as a preferred embodiment, the first extension 7 is provided inside the base 3. Correspondingly, because the fixed orifices has set up on first extension 7, and first extension 7 has set up the inside at base 3, base 3's structure needs to correspond the change, if when adopting the mode of bolt to fix, the position that the hole that the cooperation set up on base 3 needs to correspond the change and uses with the cooperation fixed orifices, when adopting the mode of screw to fix, the position that the cooperation set up the screw on base 3 needs to correspond the change, also set up in the inside of base 3 and use with the cooperation fixed orifices, if take bolt fastening mode and the nut that the cooperation was used is fixed in base 3, the position that the nut is fixed needs to correspond the change, also set up in the inside of base 3 and use with the cooperation fixed orifices. When the first extending piece 7 is arranged inside the base 3, the bolt or the nut for fixing is also arranged inside the base 3, so that an illegal user is difficult to contact, the electric energy meter is prevented from being damaged by disassembling the current assembly, and the possibility of safety accidents caused by illegal operation of the illegal user is reduced.

On the basis of the above embodiments, in this embodiment, the metal sheet 2 has two second extending members, the extending directions of the two second extending members are both perpendicular to the extending direction of the terminal 4, the number of the fixing holes is two, and the two fixing holes are respectively disposed on the two second extending members.

In the specific implementation, the current assembly is fixed to the base 3 by bolts or screws through two fixing holes respectively formed in the two second extending members. Correspondingly, because two fixed orificess settings have been on two second extension pieces, the position of fixed orifices has changed, quantity has also become two, base 3's structure needs to correspond the change, if when adopting the mode of bolt to fix, the position and the quantity that the cooperation set up the hole on base 3 need correspond the change and use in order to cooperate the fixed orifices, when adopting the mode of screw to fix, the position and the quantity that the cooperation set up the screw on base 3 need correspond the change and use in order to cooperate the fixed orifices, if take bolt fastening mode and the nut that the cooperation was used to be fixed in base 3, the position and the quantity that the nut is fixed need correspond the change and use in order to cooperate the fixed orifices. Two second extending pieces are arranged and used for fixing the current component and the base 3, so that the current component and the base are fixed more firmly.

Further, two second extensions are symmetrically arranged with respect to the metal sheet 2. Compared with asymmetric arrangement, the symmetrical arrangement makes the structure of the metal sheet 2 simpler, the production process is simpler and more convenient, the structure of the base 3 is also simple, the production is easy, and the installation process is simpler and more convenient.

In addition to the above, as a preferred embodiment, two second extending members are provided inside the base 3. Correspondingly, the structure of the base 3 needs to be changed correspondingly, which is substantially the same as the above-mentioned change when the first extending member 7 is disposed inside the base 3, and the description is omitted here, but it should be noted that there are two second extending members and two fixing holes. When two second extension pieces set up in the inside of base 3, the bolt or the nut that are used for fixing also set up in the inside of base 3 for thereby the illegal user is difficult to contact and avoids dismantling the electric energy meter that the electric current subassembly destroys, has also reduced illegal user's illegal operation and has caused the possibility of incident.

On the basis of the above embodiment, the electric energy meter in the present embodiment further includes a relay, the connection conductor 6 includes the first connection conductor and the second connection conductor, and the contact of the relay is disposed between the first connection conductor and the second connection conductor.

It should be noted that, in this embodiment, there is no specific limitation on the type of the relay, but the relay should be able to withstand the current in the connecting conductor 6, so as to ensure safety.

Set up the contact of relay between first connecting conductor and second connecting conductor, realized when needs break off power cord and load, when the long-term charges of electricity or construction demand of dragging for a long time of like the user, need not just make its disconnection through operation wiring end 4, it is safer, prevent to take place the incident.

It is right above the utility model provides an electric energy meter has carried out the detailed introduction. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, article, or apparatus that comprises the element.

Claims

1. The utility model provides an electric energy meter, includes mutual-inductor (1), its characterized in that still includes current subassembly and base (3), current subassembly includes two sheetmetals (2) and connecting conductor (6), sheetmetal (2) include wiring end (4) and link (5), wiring end (4) set up in the outside of base (3) for be connected with power cord or load, link (5) set up in the inside of base (3), connecting conductor (6) pass the coil of mutual-inductor (1) will two link (5) of sheetmetal (2) are connected, be provided with at least one fixed orifices on sheetmetal (2), be used for through bolt or screw will current subassembly with base (3) are fixed.

2. An electric energy meter according to claim 1, characterized in that the metal sheet (2) has a first extension (7), the extension of the first extension (7) being perpendicular to the extension of the terminal (4), the fixing hole being provided in the first extension (7).

3. An electric energy meter according to claim 2, characterized in that the plane of the first extension (7) is perpendicular to the direction of extension of the terminal (4).

4. An electric energy meter according to claim 1, characterized in that the metal sheet (2) has two second extensions, both extending in a direction perpendicular to the direction of extension of the terminal (4), and in that there are two fixing holes, which are provided in the two second extensions, respectively.

5. Electric energy meter according to claim 4, characterized in that the two second extensions are symmetrical with respect to the metal sheet (2).

6. An electric energy meter according to claim 2 or 3, characterized in that the first extension (7) is arranged inside the base (3).

7. An electric energy meter according to claim 4 or 5, characterized in that the second extension is arranged inside the base (3).

8. An electric energy meter according to claim 1, characterized in that the current assembly and the base (3) are secured by means of bolts, and nuts cooperating with the bolts are secured to the base (3).

9. An electric energy meter according to claim 1, further comprising a relay, the connection conductor (6) comprising a first connection conductor and a second connection conductor, the contacts of the relay being arranged between the first connection conductor and the second connection conductor.