CN114236205B - Electric energy meter base and corresponding method for replacing electric energy meter without power failure - Google Patents

Abstract

The embodiment of the present invention discloses a base of an electric energy meter, which includes: a base box body with a wire inlet hole, and a cage spring connected to a deflector is arranged in each wire inlet hole, and the other end of the deflector is in contact with the elastic One end of the column is pivoted; the rotating bracket is sleeved with an elastic contact column, and it is pivoted on the base box through the rotating arm; two metal short springs are fixed on the inner wall of the base box at intervals, each short Circlips are provided at both ends of the connecting spring; when the rotating bracket is rotated to the vertical state, the four elastic contact columns are respectively buckled with the four circlips to realize the short-circuiting of the incoming and outgoing live wires and the short-circuiting of the incoming and outgoing neutral wires, which is convenient for replacing electric energy surface. The invention also discloses a corresponding method for replacing the electric energy meter without power failure. By implementing the present invention, it is efficient, safe and reliable to replace the electric energy meter without power failure, and improves the user's experience in using electricity.

Description

Electric energy meter base and corresponding method for replacing electric energy meter without power failure

technical field

The invention relates to the technical field of electric energy meter maintenance, in particular to an electric energy meter base and a corresponding method for replacing the electric energy meter without power failure.

Background technique

With the improvement of people's living standards, users have higher and higher requirements for power consumption experience. At present, power outages are only carried out to users when necessary, and power outages will inevitably reduce users' experience in using electricity. Generally speaking, the number of single-phase electric energy meters operated by large power supply companies is huge, even reaching the order of millions, and the annual replacement due to various reasons accounts for about 10%, which is a huge workload.

In the current process of replacing the electric energy meter, for emergency repair and replacement of the meter, the operation mode of first disconnecting the main switch of the incoming line of the metering box is used on site, and then the electric energy meter is replaced, which will affect other users in the same electric energy meter box who have not changed the meter , the influence range is larger, and the time is longer (about 15-20 minutes). For the replacement of electric energy meters in non-emergency situations, power outage notices must be issued to users involved in power outages in advance before the operation can be carried out, which is very time-consuming and labor-intensive.

In addition, the assembly and disassembly of the traditional energy meter is cumbersome, requiring a large number of screw operations, and sometimes requiring an appointment for a power outage, which consumes a lot of manpower and time, and often leads to wrong wiring. Live metal parts seriously threaten the safety of workers.

Therefore, how to realize safe and rapid replacement of electric energy meters without power failure has become an urgent problem to be solved.

Contents of the invention

The technical problem to be solved by the present invention is to provide a base of an electric energy meter and a corresponding method for replacing the electric energy meter without power failure, which can realize the replacement of the electric energy meter without power failure, which is efficient, safe and reliable, and improves the user's experience in using electricity.

In order to solve the above technical problems, the present invention provides an electric energy meter base for replacing electric energy meters without power failure, which includes:

The base box includes a bottom plate, two side plates, a rear plate and a top plate, four wire inlet holes are formed on the rear board, four operation holes are arranged on the top plate, and a cage is accommodated in each wire inlet hole Each cage spring is fixedly connected with a deflector, and one end of the deflector is formed with a pivot piece; wherein, each pivot piece is pivoted with one end of an elastic contact column respectively; provided with a through hole;

The rotating bracket is made of insulating material, which includes a flat plate with four perforations, rotating arms perpendicular to the flat plate extending from both ends of the flat plate, and a rotating shaft is formed on the outside of each rotating arm end. The rotating shaft is matched with the through hole on the side plate; the other end of each elastic contact column is fixed in a through hole on the plate;

Two metal short springs are arranged side by side and fixed at intervals on the inner wall of the rear plate facing the side of the rotating bracket; two ends of each short spring respectively form a retaining spring;

Wherein, when the rotating bracket rotates to the vertical state, the four elastic contact columns are buckled with the four snap springs respectively, so that two adjacent elastic contact columns are connected through a short-circuit spring; the other two Adjacent elastic contact columns are conducted through another short-circuit spring.

Preferably, when the rotating bracket rotates away from the vertical state, the four elastic contact columns are respectively separated from the four snap springs, and the conduction relationship with the short-circuit spring is disconnected.

Preferably, it further includes an anti-theft protection cover, the anti-theft protection cover is rotatably arranged between the two side plates, and it completely covers the operation hole, the rotating bracket, and after being connected with the elastic contact post Part of the electric energy meter; there is a seal operation hole on it.

Preferably, a limit column is further provided on the outer side of each rotating arm of the rotating bracket, and an arc-shaped groove is respectively formed on the inside of the two side plates; the limit column cooperates with the arc-shaped groove to limit the position .

Preferably, an insulating silicone cap assembly is further provided, which forms four silicone sleeves with openings in the same direction on the body, and is used to cover and protect the elastic contact column when the base of the electric energy meter is not plugged into the electric energy meter; The insulating silicone cap assembly is fixed to the end of the rotating shaft of the rotating bracket through an extension wire.

Correspondingly, another aspect of the present invention also provides a method for replacing an electric energy meter without power failure, which is realized by using the aforementioned electric energy meter base; it is characterized in that it includes the following steps:

When it is necessary to replace the electric energy meter connected to the base of the electric energy meter, the rotating bracket is controlled to rotate, so that the electric energy meter and the elastic contact post are rotated to a vertical state, so that the four elastic contact posts are connected to the four cards respectively. The spring phase is buckled, so that two adjacent elastic contact columns are connected through a short-circuit spring, and the other two adjacent elastic contact columns are connected through another short-circuit spring, so that the incoming line of the live line and the The outgoing line is short-circuited, and the zero-line incoming line and the outgoing line are short-circuited;

Pull off the electric energy meter from the elastic contact column, and re-insert the new electric energy meter on the elastic contact column;

The rotation of the rotating bracket is controlled so that the new electric energy meter and the elastic contact columns are rotated to a horizontal state, and the four elastic contact columns are respectively separated from the four retaining springs, and the new electric energy meter starts to work.

Preferably, further comprising:

Before replacing the electric energy meter, remove the seal in the seal operation hole of the anti-theft protection cover, and open the anti-theft protection cover;

After the replacement of the incoming electric energy meter is completed, cover the anti-theft protection cover, and set a sealing measure in the sealing operation hole.

Implementing the embodiment of the present invention has the following beneficial effects:

The invention provides an electric energy meter base and a corresponding method for replacing the electric energy meter without power failure. By designing the rotating bracket and shorting spring in the base of the electric energy meter, and the structure with the cage spring; when replacing the electric energy meter, only need to stand the electric energy meter upright, at this time, the internal ingenious structural design makes the incoming and outgoing live wires short-circuited, The input and output neutral wires are short-circuited, and the electric energy meter can be plugged and unplugged without any power failure. After replacing the electric energy meter, it is only necessary to push the electric energy meter to restore normal measurement. In this way, the single-phase electric energy meter can be replaced without power failure, and the risk of wiring errors caused by meter replacement can be eliminated, the time for meter replacement can be greatly reduced, the process of meter replacement can be simplified, the engineering quantity of meter replacement can be greatly reduced, and labor costs can be saved.

At the same time, the embodiment of the present invention can realize that the normal power consumption of the user is not affected during the meter replacement period, the user has zero perception, no need to communicate with the user about the power outage time, and no user complaints caused by the power outage, making the power supply service more convenient, efficient and intelligent.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the overall structure schematic diagram of an embodiment of a kind of electric energy meter base provided by the present invention;

Fig. 2 is a schematic diagram of another perspective in Fig. 1;

Fig. 3 is a schematic structural view of the insulating silicone cap assembly in Fig. 1;

Fig. 4 is a structural schematic diagram of removing the anti-theft protection cover and the insulating silicone cap assembly in Fig. 1 and the rotating bracket is in a vertical state;

Fig. 5 is a schematic diagram of another viewing angle of Fig. 4;

Fig. 6 is a schematic structural diagram of removing the base box in Fig. 4;

Fig. 7 is a schematic structural diagram of removing the rotating bracket in Fig. 6;

Fig. 8 is a schematic diagram of another perspective in Fig. 6;

Fig. 9 is a schematic diagram of another perspective of Fig. 7;

Fig. 10 is a structural diagram in which the rotating support is removed and the rotating support is in a horizontal state in Fig. 4;

FIG. 11 is a schematic diagram of the structure of FIG. 10 without the base box.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

It is understandable that if you want to achieve non-stop operation, you can only use the principle of "short-circuiting the live wire of the incoming line and the live wire of the outgoing line of the electric energy meter, and shorting the zero line of the incoming line of the electric energy meter and the neutral line of the outgoing line" before replacing the electric energy meter. The electric energy meter base provided by the present invention is based on this principle. Through ingenious structural design, while replacing the electric energy meter upright electric energy meter, the elastic short-circuit device is used to short-circuit the live wire of the incoming line of the electric energy meter and the live line of the outgoing line, and short-circuit the electric energy meter. The zero line of the incoming line of the electric energy meter and the zero line of the outgoing line, at this time, the electric energy meter can be replaced very quickly without power failure and without the user's perception.

As shown in FIG. 1 , it shows a schematic diagram of the overall structure of an embodiment of an electric energy meter base of the present invention. As shown in Figure 2 to Figure 11 together, in this embodiment, the base of the electric energy meter can realize the function of replacing the electric energy meter without power failure, which at least includes:

The base box 1 includes a base plate 10, two side plates 11, a rear plate 12 and a top plate 13, four inlet holes 120 are formed on the rear plate 12, and four operating holes 130 are arranged on the top plate 13. A cage spring 122 is accommodated in each wire inlet hole 120, and each cage spring 122 is fixedly connected with a deflector 123, and one end of the deflector 123 is formed with a pivot piece 124; wherein, each pivot piece 124 is They are respectively pivoted with one end of an elastic contact column 2; a through hole 110 is respectively arranged on the two side plates 11; wherein, the cage spring 122 is used to cooperate with the operation hole to fix the incoming and outgoing wires; in a specific example, the elastic The contact column 2 is designed based on the DIN41612 German standard. Its pins have multiple contact points with the electric energy meter, and its maximum current carrying capacity can be as high as 120A. It will not deform after long-term operation, ensuring low contact resistance and low insertion force;

The rotating bracket 3 is made of insulating material, and it includes a flat plate 30 with four perforations, two ends of the flat plate 30 extend out a rotating arm 31 perpendicular to the flat plate, and each rotating arm end 31 outside forms a A rotating shaft 310, the rotating shaft 310 is matched with the through hole 110 on the side plate 11; the other end of each elastic contact column 2 is fixed in a through hole on the flat plate 30;

Two metal shorting springs 4 are arranged side by side and spaced apart and fixed on the inner wall of the rear plate 12 facing the side of the rotating bracket 3; each shorting spring 4 forms a snap ring 40 at both ends; in a specific example Among them, in order to ensure the reliability of the short-circuit circuit and reduce the contact resistance after short-circuit, the short-circuit spring 4 is made of special alloy copper sheet with high elasticity, high reliability, and low material resistance, and is subjected to heat quenching treatment to achieve small contact resistance and No plastic deformation after long-term bending, and tight bonding after short-circuiting. The structure of the snap ring 40 in the shorting spring 4 can also ensure that it has high elasticity, and can still maintain high elasticity after repeated plugging and unplugging. Moreover, the structure is simple, easy to realize in engineering and saves materials.

Wherein, when the rotating bracket 3 is rotated to the vertical state, the four elastic contact columns 2 are engaged with the four snap springs 40 respectively, so that two adjacent elastic contact columns 2 are connected through a short-circuit spring 4 ; Make the other two adjacent elastic contact columns 2 conduct through another short-circuit spring 4 . When the rotating bracket 3 rotates away from the vertical state, the four elastic contact columns 2 are separated from the four snap springs 40 respectively, and the conduction relationship with the shorting spring 4 is disconnected. In short, the rotating bracket 3 can drive the four elastic contact pins 2 to rotate, and realize the connection or disconnection between the elastic contact pins and the shorting spring 4 when rotating to different positions; in a specific example, the rotating bracket complies with UL94 -V flame retardant performance, which can guarantee that it will not burn even when the temperature reaches 125.

A limiting column 311 is further arranged on the outside of each rotating arm 31 of the rotating bracket, and an arc-shaped groove 111 is respectively formed on the inner side of the two side plates 11; the limiting column 311 and the arc-shaped groove 111 Cooperate with limit.

In a specific example of the present invention, it further includes an anti-theft protection cover 5, the anti-theft protection cover 5 is rotatably arranged between the two side plates 11, and covers the operation hole 130 as a whole , the rotating bracket 3, and a part of the electric energy meter connected with the elastic contact column 2; a sealing operation hole 50 is arranged on it. After the anti-stealing protection cover is covered, no operation can be performed without destroying the seal, and the effect of anti-stealing can be better achieved.

The base of the electric energy meter of the present invention is further provided with an insulating silicone cap assembly 6, which is formed with four silicone sleeves 60 opening in the same direction on the body, and is used to cover and protect the electric energy meter base when the electric energy meter base is not plugged with the electric energy meter. The elastic contact column 2 ; the insulating silicone cap assembly 6 is fixed to the rotating shaft end 310 of the rotating bracket 3 through an extension wire 61 .

In a specific example of the present invention, in order to improve the wide applicability of the base of the electric energy meter, the base of the electric energy meter needs to adopt a connector suitable for the appearance size of the electric energy meter, so as to ensure the precise combination of the connector and the terminal hole of the electric energy meter and minimize the Contact resistance, more reliable than traditional wiring methods. The pin of the elastic contact column adopts a specially designed elastic structure, and the circuit conduction is realized by inserting into the wiring hole of the electric energy meter. There is no need to lock the screw, which reduces the operating hours of replacing the electric energy meter; it can ensure both low contact resistance and low insertion force.

It can be understood that the specific operation of the electric energy meter base in the present invention is as follows:

When connecting the base of the electric energy meter with the original circuit in the electric energy meter box, insert the screwdriver from the operating hole, push open the cage spring, and then insert the stripped cable through the wiring hole; then loosen the screwdriver, the spring resets, and presses Tighten the cables so that the cables in the energy meter box can be connected to the energy meter box;

More specifically, connect the live wire of the incoming line of the electric energy meter and the live wire of the outgoing line to the adjacent two incoming wire holes (such as the third and fourth holes), and connect the neutral wire of the incoming line of the electric energy meter to the neutral wire of the outgoing line in the other two holes. In two adjacent wire entry holes (such as the first and second holes). Specifically, it needs to be coordinated according to the incoming and outgoing lines of the electric energy meter. The principle that needs to be met is that the incoming and outgoing live wires of the electric energy meter are set in a group of adjacent incoming line holes, and the incoming and outgoing zero lines of the electric energy meter are set in another in a group of adjacent cable entry holes.

The electric energy meter is plugged on the elastic contact column, and when the electric energy meter is in normal operation, it is necessary to control the rotating bracket to be in a horizontal state, that is, the electric energy meter is in a horizontal state together with the elastic contact column. At this time, the four elastic contact columns are respectively It is separated from the four circlips, that is, all incoming and outgoing lines are disconnected from the metal short springs.

During the operation, it is only necessary to remove the insulating silicone cap assembly, align the wiring hole of the electric energy meter with the elastic contact post and insert it, and push the electric energy meter flat. When replacing the electric energy meter, you only need to stand the electric energy meter upright. At this time, the ingenious internal structural design makes the incoming and outgoing live wires short-circuited, and the incoming and outgoing neutral wires are short-circuited, so that the electric energy meter can be plugged and unplugged without any power failure. Replacement After the watt-hour meter, it is only necessary to push the watt-hour meter flat, measure normally, cover the anti-theft device, and no operation can be performed without destroying the seal, and it is better to achieve the anti-theft effect.

Correspondingly, the present invention also provides a method for replacing a single-phase electric energy meter without power failure, which is realized by using the base described in the foregoing Figures 1 to 11; it includes the following steps:

When it is necessary to replace the electric energy meter connected to the base, remove the seal in the seal operation hole of the anti-theft protection cover, and open the anti-theft protection cover;

Control the rotation of the rotating bracket so that the electric energy meter and the elastic contact columns are rotated to a vertical state together, so that the four elastic contact columns are respectively engaged with the four snap springs, so that two adjacent elastic contact columns pass through a short The connecting spring is connected to each other, so that the other two adjacent elastic contact columns are connected to each other through another shorting spring, so that the incoming line and outgoing line of the live line are short-circuited, and the incoming line and outgoing line of the zero line are short-circuited;

Pull off the electric energy meter from the elastic contact column, and re-insert the new electric energy meter on the elastic contact column;

Control the rotation of the rotating bracket, so that the new electric energy meter and the elastic contact columns are rotated to a horizontal state, so that the four elastic contact columns are separated from the four retaining springs, and the new electric energy meter starts to work;

Cover the anti-theft protection cover, and set sealing measures in the sealing operation hole.

For more details, reference may be made to and combined with the foregoing descriptions of FIG. 1 to FIG. 11 , and details are not repeated here.

Implementing the present invention has the following beneficial effects: implementing the embodiments of the present invention has the following beneficial effects:

The invention provides an electric energy meter base and a corresponding method for replacing the electric energy meter without power failure. By designing the rotating bracket and shorting spring in the base of the electric energy meter, and the structure with the cage spring; when replacing the electric energy meter, only need to stand the electric energy meter upright, at this time, the internal ingenious structural design makes the incoming and outgoing live wires short-circuited, The input and output neutral wires are short-circuited, and the electric energy meter can be plugged and unplugged without any power failure. After replacing the electric energy meter, it is only necessary to push the electric energy meter to restore normal measurement. In this way, the single-phase electric energy meter can be replaced without power failure, and the risk of wiring errors caused by meter replacement can be eliminated, the time for meter replacement can be greatly reduced, the process of meter replacement can be simplified, and the engineering quantity of meter replacement can be greatly reduced (by more than 90%). human cost.

At the same time, the embodiment of the present invention can realize that the normal power consumption of the user is not affected during the meter replacement period, the user has zero perception, no need to communicate with the user about the power outage time, and no user complaints caused by the power outage, making the power supply service more convenient, efficient and intelligent.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above description is only the specific implementation of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, some improvements and modifications can also be made. It should be regarded as the protection scope of this application.

Claims (7)

1. An electric energy meter base for change the electric energy meter without power failure, its characterized in that includes:

the base box body (1) comprises a bottom plate (10), two side plates (11), a rear plate (12) and a top plate (13), wherein four wire inlet holes (120) are formed in the rear plate (12), four operation holes (130) are formed in the top plate (13), a cage spring (122) is accommodated in each wire inlet hole (120), each cage spring (122) is fixedly connected with a guide vane (123), and a pivot plate (124) is formed at one end of each guide vane (123); wherein each pivot piece (124) is pivoted with one end of an elastic contact column (2); a through hole (110) is respectively arranged on the two side plates (11);

the rotating bracket (3) is made of an insulating material and comprises a flat plate (30) with four through holes, rotating arms (31) vertical to the flat plate extend out of two ends of the flat plate (30), a rotating shaft (310) is formed outside the end part of each rotating arm (31), and the rotating shaft (310) is matched with the through holes (110) on the side plates (11); the other end of each elastic contact column (2) is penetrated and fixed in one perforation on the flat plate (30);

the two metal short springs (4) are fixed on the inner wall of the rear plate (12) facing the rotating bracket (3) at intervals; two ends of each short-circuit spring (4) are respectively provided with a snap spring (40);

when the rotary support (3) rotates to a vertical state, the four elastic contact columns (2) are respectively buckled with the four clamp springs (40), so that two adjacent elastic contact columns (2) are communicated through a short-circuit spring (4); two other adjacent elastic contact posts (2) are conducted through another short-circuit spring (4).

2. The electric energy meter base according to claim 1, characterized in that the four elastic contact beams (2) are separated from the four snap springs (40) and are disconnected from the conductive relationship with the shorting springs (4) when the swivel bracket (3) is swiveled away from the vertical state.

3. The electric energy meter base according to claim 2, further comprising an anti-electricity-theft protection cover (5), wherein the anti-electricity-theft protection cover (5) is rotatably arranged between the two side plates (11), and covers the operation hole (130), the rotating bracket (3) and a part of the electric energy meter connected with the elastic contact column (2) in an integral manner; and a seal operation hole (50) is arranged on the seal operation hole.

4. A base of an electric energy meter according to claim 3, characterized in that a limit post (311) is further arranged on the outer side of each rotary arm (31) of the rotary bracket, and an arc-shaped groove (111) is formed on the inner sides of the two side plates (11), respectively; the limiting column (311) is matched with the arc-shaped groove (111) for limiting.

5. The electric energy meter base according to any one of claims 1 to 4, further provided with an insulating silicone cap assembly (6) on which four silicone sleeves (60) open in the same direction are formed for sheathing the elastic contact posts (2) when the electric energy meter base is not plugged into the electric energy meter; the insulating silica gel cap component (6) is fixed with the end part of a rotating shaft (310) of the rotating bracket (3) through an extension line (61).

6. A method of replacing an electric energy meter without power outage, which is implemented with the electric energy meter base of any one of claims 1 to 5; the method is characterized by comprising the following steps of:

when the electric energy meter connected to the electric energy meter base needs to be replaced, the rotating support is controlled to rotate, so that the electric energy meter and the elastic contact columns rotate to a vertical state, the four elastic contact columns are buckled with the four clamp springs respectively, two adjacent elastic contact columns are conducted through one short-circuit spring, the other two adjacent elastic contact columns are conducted through the other short-circuit spring, and therefore the live wire inlet wire and the live wire outlet wire are in short circuit, and the zero wire inlet wire and the zero wire outlet wire are in short circuit;

shifting down the electric energy meter from the elastic contact column, and re-inserting a new electric energy meter on the elastic contact column;

and controlling the rotating support to rotate, so that the new electric energy meter and the elastic contact columns rotate to a horizontal state together, and the four elastic contact columns are separated from the four clamp springs respectively, and the new electric energy meter starts to work.

7. The method as recited in claim 6, further comprising:

before replacing the electric energy meter, removing the seal in the seal operation hole of the anti-electricity-theft protection cover, and opening the anti-electricity-theft protection cover;

after the replacement of the electricity meter is completed, the electricity larceny prevention protective cover is covered, and sealing measures are arranged in the sealing operation holes.

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