CN215070875U - Modularized electricity larceny prevention power distribution substrate of low-voltage electric energy metering box - Google Patents

Abstract

The utility model discloses an anti-electricity-theft distribution substrate of low pressure electric-energy metering box modularization, the cavity that the electric conductor that distribution substrate was for having inside can lay as required, and have the fixed trend holds, but it opens and close through bottom plate and panel articulated formula, establishes electromagnetic lock in and increases power consumption safety and reinforcing protection to this distribution substrate is whole and measures box demountable assembly. A single-layer or multi-layer conductor trend mode is arranged in a cavity on one side of the power distribution substrate according to actual needs, and a single or multiple metering meter position assembling positions, an electric switch assembling position and an electric accessory assembling position are arranged on the other side panel according to actual needs. This distribution substrate adopts the electric conductor that has to be fit for certain load to cover the mode of laying of formula in distribution substrate's cavity, stops the electric conductor direct and outside contact, improves the security of distribution substrate and measurement box, and the built-in electric conductor has anti-electricity-theft effect simultaneously, avoids the loss of user's power consumption, improves the economic nature that is used for the power consumption.

Description

Modularized electricity larceny prevention power distribution substrate of low-voltage electric energy metering box

Technical Field

The utility model relates to a low pressure electric-energy metering box technical field especially relates to an anti-electricity-theft distribution substrate of low pressure electric-energy metering box modularization.

Background

The metering box is the totality of metering devices and auxiliary equipment necessary for metering electric energy, and comprises an electric energy meter, a voltage for metering, a current transformer and a secondary loop thereof, an electric energy metering screen, a cabinet, a box and the like. The batch meter can adopt suspension type or floor type installation. At present, distribution such as strapping table, the switch that conventional batch meter inside hung exists batch meter internal planning and walks the line connection randomness great when the assembly, and whole assembly is disorderly unordered, assembly efficiency is poor, causes the waste of batch meter partial space to there is easy short circuit, is stolen risk such as electric, and the mode of this direct assembly also has the non-unity of assembly quality simultaneously, leads to the fact certain influence to user's power consumption safety.

SUMMERY OF THE UTILITY MODEL

To the problem that exists, the utility model aims at providing an anti-electricity-theft distribution substrate of low pressure electric-energy metering box modularization, this distribution substrate changes the conventional wiring mode in the metering box body, wire wiring and the connected mode conventional, change to the mode of laying that the electric conductor that adopts to have suitable certain load covers the formula in the cavity of distribution substrate, stop the electric conductor direct and external contact, improve the security of distribution substrate and measurement box, built-in electric conductor has anti-electricity-theft effect simultaneously, avoid the loss of user's power consumption.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an anti-electricity-theft distribution substrate of low pressure electric energy metering box modularization, the distribution substrate has inside can lay as required, and has the cavity that the electric conductor of fixed trend held be provided with single or a plurality of strapping table assembly positions, electrical switch assembly position and electrical accessories assembly position according to actual need on the plane of distribution substrate one side, and above-mentioned the assembly position all with the electric conductor is directly connected, the side of distribution substrate be equipped with in proper order with the inlet wire electrical switch structure and the electrical switch structure of being qualified for the next round of competitions that the electric conductor link up, the whole and measurement box demountable assembly of distribution substrate.

Preferably, the power distribution substrate comprises a bottom plate and a face plate which can be hinged to open and close the cavity, and a lock body which can close the cavity in a closed state is arranged on one side of the bottom plate or the face plate.

Preferably, the meter assembly position is provided with a conductive terminal for meter insertion, one end of the conductive terminal is directly connected with the conductive body, and the meter assembly position corresponding to the conductive terminal is provided with an assembly mechanism for straight line alignment insertion of the meter and the conductive terminal.

Preferably, the assembly mechanism comprises a fixing plate which is vertically arranged in the meter assembly position and corresponds to the conductive terminal, a sliding groove is formed in the fixing plate towards the direction of the conductive terminal, a sliding plate which is perpendicular to the fixing plate and is matched with the meter to fix is arranged in the sliding groove in a sliding mode, fastening holes matched with the meter are formed in two ends of the sliding plate, and assembly holes matched with the fastening holes are formed in the meter assembly position in a state that the meter is in plug-in fit with the conductive terminal.

Preferably, the electrical switch assembly position is provided with an assembly plate for electrical switch assembly, and a disassembly structure for detachably connecting the assembly plate and the panel is arranged in a position where the electrical switch assembly position is located on the panel.

Preferably, the disassembly structure comprises horizontal sliding grooves symmetrically formed in the panel, each horizontal sliding groove is internally provided with a limiting sliding plate in a sliding mode along the length direction of the assembly plate, and a pressing plate used for pressing the end part of the limiting sliding plate extends outwards from one side, close to the assembly plate, of the limiting sliding plate to the horizontal sliding groove.

Preferably, the side wall of the bottom plate is provided with a slot which is communicated with the cavity and the outside of the power distribution substrate, one side of the slot, which is positioned on the panel, is provided with a socket, and a heat dissipation plate with heat dissipation holes is inserted into the slot through the socket.

Preferably, the corners of the bottom plate are provided with arc waist holes for integrally fixing the power distribution substrate in the metering box body.

The utility model has the advantages that: this distribution substrate changes the conventional wiring mode in the metering box body, with conventional wire wiring and connected mode, change to the adoption and have the electric conductor that is fit for certain load at distribution substrate's cavity internal seal cladding formula and satisfy safe distance's the wiring mode, stop between the electric conductor and with outside direct contact, there is not electrically conductive exposed portion, has very high reliability, improve the security of distribution substrate and metering box body, built-in electric conductor has the effect of anti-electricity-theft simultaneously, avoid the loss of user's power consumption. The conductor can be arranged in multiple layers according to actual needs, and the requirements of different electrical assembly connections are met. Compared with the similar electrical connection technology, the short circuit and the return connection of a plurality of electrical connection wires are reduced, the faults are greatly reduced, the substrate is designed into an upper layer and a lower layer, the middle layer is a conductive layout part, and the structural design of the two layers improves the strength of the electric conductor for resisting the external force.

The electric conductors with fixed wiring leave a safety gap each other, and the electric conductors have a good heat dissipation effect relative to the wires, so that the use safety of the metering box body is improved. And the gauge table, the switch and the accessories arranged outside the distribution substrate are all directly connected with the electric conductor, so that the wiring outside the distribution substrate is further avoided, the risk of electricity stealing can be effectively avoided, and the safety of electricity utilization of a user can be improved. The wiring and the assembly mode of the distribution substrate can realize the modular production of the same metering box, ensure that the metering substrate has uniform assembly quality, ensure the power utilization safety of users and improve the assembly efficiency of the distribution substrate and the metering box body.

The distribution base plate adopts detachable heating panel all around, need not about the partition base plate when cleaning basic inside, can go on through detachable heating panel. The upper base plate and the lower base plate are assembled in a hinged mode, the operation of opening and closing the cavity is performed, the installation is convenient, and the combination is reliable. The electromagnetic lock is arranged in the power distribution base plate, so that the power utilization safety and the enhanced protection are increased, and the whole power distribution base plate and the metering box body are detachably assembled.

The distribution substrate can form large, medium and small series products in various scales. It can be extended to batch tanks of various sizes. Besides the ordinary metering function, an electrical accessory assembling position is reserved, and convenience is provided for assembling electrical accessories such as a collector. The functional unit of base plate realizes, makes various functions such as batch meter position control, electric on-off control, electric safety control, electric elements integration set, the advantage maximize.

Drawings

Fig. 1 is the overall structure schematic diagram of the power distribution substrate of the present invention.

Fig. 2 is the utility model discloses distribution substrate and measurement box assembly sketch map.

Fig. 3 is an enlarged schematic view of the bottom plate of the present invention.

Fig. 4 is a side view of the heat dissipating plate of the present invention.

Fig. 5 is an enlarged schematic view of the panel of the present invention.

Figure 6 is the utility model discloses strapping table assembly schematic.

Fig. 7 is a schematic view of the switch assembly of the present invention.

Fig. 8 is a schematic view of the dismounting structure for the switch of the present invention.

Fig. 9 is a side view of the whole body of the limiting slide plate and the pressing plate of the present invention.

Fig. 10 is a wiring diagram of the unidirectional epitope electric conductor of the present invention.

Fig. 11 is a wiring diagram of the three-way epitope electric conductor of the present invention.

Fig. 12 is a schematic diagram of the assembly of multiple epitopes of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.

Referring to fig. 1-12, a modular anti-electricity-theft power distribution substrate for a low-voltage electric energy metering box is shown, wherein the power distribution substrate 1 is provided with a cavity 101, the interior of which can be laid according to needs and is provided with a conductor 2 with a fixed trend for accommodating. Preferably, electric conductor 2 is selected to have certain plastic deformation, and the copper tablet of certain intensity, bar copper or the like electric conduction material, this type of electric conduction material is owing to have certain intensity, after it moves towards bending forming according to the route, it moves towards the direction to have and is difficult for changing it, and have stable winding displacement clearance between the adjacent electric conductor 2, make this type of electric conductor compare in the wire way of walking of present adoption have be difficult to take place the circuit short circuit, good thermal diffusivity has, and the circuit moves towards regular, be convenient for lay complicated circuit, the normal life cycle of whole batch meter is prolonged, reduce the number of times that the power failure overhauls and maintains. The wiring and arranging of the conductor 2 is arranged in the cavity 101 of the distribution substrate 1, so that the conductor 2 is prevented from directly contacting with the outside, the safety of the distribution substrate 1 and a metering box body (shown in a figure 10) is improved, and meanwhile, the built-in conductor 2 has the function of electricity larceny prevention, and the loss of electricity consumption of users is avoided. Preferably, the conductor 2 can be laid in multiple layers according to actual needs (as shown in fig. 11, wherein the solid line is the upper conductor 2, and the dotted line is the lower conductor 2).

In order to facilitate the assembly of the meters (20 in the figure), the switches (30 in the figure) and the accessories (such as the electrical accessories such as the collector for transferring data to the background), as shown in fig. 1, a single or a plurality of meter mounting positions 1a, electrical switch mounting positions 1b and electrical accessory mounting positions 1c are provided on one side plane of the power distribution substrate 1 according to actual needs, and the mounting positions are all directly connected to the conductor 2. The actual connection mode is as follows: according to the installation positions of a meter, a switch and accessories, the electric conductor 2 is arranged in the cavity 101, the connecting end of the electric conductor 2 and the components penetrates through the distribution substrate 1 to be directly connected with the components, the through connection mode is realized, and the problems of short circuit, poor heat dissipation and easiness in being connected with an external circuit to steal electricity existing in the traction connection of the electric conductor 2 and the components through the conducting wire are solved. Since the component is generally attached to the distribution board 1 during assembly, the terminal of the conductor 2 penetrating through the distribution board 1 is connected to the component, and then the terminal of the conductor 2 is covered by the body of the component, thereby preventing electricity from being stolen (as shown in fig. 6).

And the side edge of the power distribution substrate 1 is sequentially provided with an incoming line electrical switch structure 1d and an outgoing line electrical switch structure 1f which are communicated with the conductor 2. The power main line is connected with the electric conductor in the power distribution substrate 1 through the incoming line electric switch structure 1d, and the switch and accessories are all directly connected with the electric conductor 2, so that the user main line is connected into the cavity 101 through the outgoing line electric switch structure 1f, and one end of the electric conductor 2 connected with the outgoing line end of the switch is connected, so that the switch is connected with the user main line in a sealed mode, wiring and wiring on the outer surface of the power distribution substrate are avoided integrally, the risk of electricity stealing is effectively solved, and the safety and the economical efficiency of electricity utilization are improved.

In order to facilitate the adaptability of the distribution substrate 1, the distribution substrate 1 is integrally detachably assembled with the metering box body. Through this demountable assembly's mode, make distribution substrate 1 can assemble in the batch tank of different specifications and effects. And because the electric conductor 2 is arranged in the cavity of the distribution substrate 1, the integral coating structure of the distribution substrate 1 improves the protection strength of the electric conductor 2, can bear the integrity and completeness of the electric conductor 2 under the action of an insurmountable external force, and improves the reliability of power utilization.

Specifically, the power distribution substrate 1 includes a bottom plate 11 and a face plate 12 (the bottom plate 11 and the face plate 12 may be hinged by a screw or a hinge) that can open and close the cavity 101, and a lock body 3 that can close the cavity 101 in a closed state is disposed on one side of the bottom plate 11 or the face plate 12. The cavity 101 can be opened by hinging, which is convenient for arranging and winding the electric conductor 2 in the cavity. Preferably, the conductor 2 is disposed on the inner side of the panel 12, and the meter, the switch and the accessories are disposed on the outer side of the panel 12, so as to facilitate the through connection between the conductor 2 and the component. Preferably, the lock body 3 is an electromagnetic lock, and the locking plate 31 is inserted into the bottom plate 11 and the face plate 12 for locking. This electromagnetic lock is through being connected for it provides the power with the electric conductor to this electromagnetic lock is locking state under the on state, is open state under the outage state, and consequently it can lock distribution substrate 2 under measurement box normal use state, prevents to be stolen the risk of electricity.

Specifically, the meter assembling position 1a is provided with a conductive terminal 4 for meter insertion, and one end of the conductive terminal is directly connected with the conductive body 2. The setting position of the conductive terminal 4 is selected and set according to the position of the actual meter. Through the splicing of the meter and the conductive terminal 4, the direct connection between the meter and the conductive terminal is realized, and the risk of electricity stealing caused by the leakage of a connection point is also avoided.

In order to facilitate the accurate insertion of the meter and the conductive terminal 4 during assembly, an assembly mechanism for the meter and the conductive terminal 4 to be linearly aligned and inserted is arranged in the meter assembly position 1a corresponding to the conductive terminal 4. The straight-line insertion of the meter and the conductive terminal 4 can be realized through the assembly structure, the risk that the conductive terminal 4 is bent or broken through external force when the meter is inserted and connected due to the alignment deviation of the meter and the conductive terminal 4 when the meter and the conductive terminal are inserted and connected is avoided, and the problems of poor contact with the meter and difficulty in replacement after the conductive terminal 4 is bent are further avoided.

Specifically, the assembly mechanism includes a fixing plate 5 vertically disposed in the meter assembly position 1a and corresponding to the conductive terminal 4, a sliding groove 51 is formed in the fixing plate 5 toward the conductive terminal 4, a sliding plate 52 perpendicular to the fixing plate 5 and cooperating with the meter to be fixed is slidably disposed in the sliding groove 51, fastening holes 53 cooperating with the meter are formed in both ends of the sliding plate 52, and an assembly hole 1a1 (preferably, a threaded hole) cooperating with the fastening hole 53 is formed in the meter assembly position 1a in a state that the meter is fitted to the conductive terminal 4. The straight line grafting effect of this assembly devices does: the mounting hole that earlier has through the strapping table cooperates with fastening hole 53 on the slide 52 to wear to establish fastening screw in its downthehole that corresponds, then slide the strapping table with slide 52 along spout 51 towards conductive terminal 4 direction, and slide to conductive terminal 4 and peg graft in the strapping table, fastening screw corresponds with pilot hole 1a1 simultaneously, fastens fastening screw in pilot hole 1a1 at last, realizes the fastening after the strapping table pegs graft. In the process, the meter linearly slides towards the conductive terminal 4 along the sliding groove 51 through the sliding plate 52, so that the meter is linearly inserted into the conductive terminal 4, the problem that the conductive terminal 4 is bent or broken by external force due to insertion deviation when the meter and the conductive terminal are inserted into each other is avoided, the problem that the conductive terminal 4 is difficult to replace due to poor contact after insertion is further avoided, and the accuracy and the rapidness of the assembly of the distribution substrate are improved.

Since the switch and the conductor 2 are connected in a through manner and the conductor 2 has a certain strength, the connection between the switch and the conductor has a certain limitation compared with the flexible connection of a wire, and in order to solve the problem and facilitate the assembly and disassembly of the switch, an assembly plate 6 (an assembly plate which can be optionally adapted according to different actual switch structures, such as a slide rail for matching an air switch) for assembling the electrical switch is arranged on the electrical switch assembly 1b, and a disassembly structure for detachably connecting the assembly plate 6 and the panel 12 is arranged in a position of the electrical switch assembly 1b on the panel 12. During the assembly, at first with the switch assembly on assembly plate 6, then with switch and corresponding electric conductor 2 through connection (preferably with the plug-in connection mode of strapping table), connect the back of accomplishing, fix the both ends of assembly plate 6 spacing through dismantling the structure, and then inject the hookup location of switch, accomplish the connection fastening assembly of switch. Meanwhile, the disassembly structure can integrally disassemble the assembly plate 6 and the switch, so that the switch is convenient to overhaul and replace.

Specifically, as shown in fig. 7 to 9, the detaching structure includes horizontal sliding grooves 1b1 symmetrically formed in the panel 12, a limiting sliding plate 1b2 is slidably disposed in each horizontal sliding groove 1b1 along the length direction of the assembly plate 6, and a pressing plate 1b3 for pressing the end of the limiting sliding plate 1b2 is extended from one side of the limiting sliding plate 1b2, which is close to the assembly plate 6, to the horizontal sliding groove 1b 1. The function is as follows: after the switch is fixedly connected with the conductor 2, and the position of the assembly plate 6 is fixed, the limit sliding plates 1b2 on two sides slide towards two ends of the assembly plate 6 along the horizontal sliding grooves 1b1, the pressing plates 1b3 are overlapped with two sections of the assembly plate 6, the pressing plates 1b3 are pressed at two ends of the assembly plate 6, the connection position of the assembly plate 6 and the switch is pressed, and the switch is fastened. Preferably, the pressing protrusion 1b4 is provided at a distance from the contact surface of the pressing plate 1b3 and the mounting plate 6, and the pressing protrusion 1b4 is used to press the mounting plate 6 and the switch, and to increase the contact friction with the mounting plate, so as to further press the mounting plate 6 and the switch. Preferably, shoulders 61 matched with the pressing plate 1b3 are formed at both ends of the assembling plate 6, and the vertical sliding of the assembling plate 6 relative to the pressing plate 1b3 is further limited by the shoulders 61, so that the switch is prevented from falling under the action of external force.

In order to solve the problem of heat dissipation of the conductor 2 in the cavity 101, as shown in fig. 3, a slot 102 is formed in a side wall of the bottom plate 11 to pass through the cavity 101 and the outside of the power distribution substrate 1, a socket 103 is formed in the side of the slot 102 on the panel 12, and a heat dissipation plate 7 having a heat dissipation hole 71 is inserted into the slot 102 through the socket 103. The heat dissipation plate 7 can effectively dissipate heat of the conductor 2, and can effectively reduce the influence of outdoor environment on the conductor 2, especially the problem that dust adheres to the conductor 2 and has a certain corrosion effect. The heat dissipation plate 7 is arranged in the slot 102 in a pluggable mode, so that when dust and sundries attached to the conductor 2 are more, the heat dissipation plate 7 is taken out, the cavity 101 and the conductor 2 are conveniently swept, the operation of quick maintenance is achieved, and the function of more power distribution substrates 1 is improved. In order to clamp the heat dissipation plate 7 to the slot 102, it is preferable that clamping protrusions 72 are provided on both sides of the heat dissipation plate 7, and are tightly fitted to the side walls of the slot 102, so as to clamp the heat dissipation plate 7 in the slot 102.

In order to facilitate the assembly and fixation of the whole distribution substrate 1 in the metering box body, the corners of the bottom plate 11 are provided with arc-shaped waist holes 104 for fixing the whole distribution substrate 1 in the metering box body. In the measurement box with reserve mounting hole, accessible arc waist hole 104 and this mounting hole cooperation are with distribution substrate 1 monolithic stationary in the measurement box, and this arc waist hole 104 has the alignment control effect, when solving the mounting hole of measurement box and distribution substrate 1 and having the counterpoint deviation, this counterpoint deviation of regulation that arc waist hole 104 can be fine, the smooth installation of distribution substrate 1 of being convenient for. In order to improve the insulating flame retardant property of the metering box body and the distribution substrate 1, preferably, both are made of high insulating flame retardant materials.

The principle of the utility model is that: this distribution substrate changes the conventional wire in the measurement box and bindes the wiring mode, with conventional wire wiring and connected mode, changes the electric conductor that has suitable certain load into the wiring mode that adopts the electric conductor cladding formula just to satisfy safe distance in distribution substrate's cavity, stops between the electric conductor and with outside direct contact, improve distribution substrate inside and with the security of measurement box, built-in electric conductor has the effect of anti-electricity-theft simultaneously, avoid the loss of user's power consumption. And the electric conductors with fixed wiring are mutually spaced to form a gap, so that the measuring box has a better heat dissipation effect relative to the wires, and the use safety of the measuring box is improved. And the gauge table, the switch and the accessories arranged outside the distribution substrate are all directly connected with the electric conductor, so that the wiring outside the distribution substrate is further avoided, the risk of electricity stealing can be effectively avoided, and the safety of electricity utilization of a user can be improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides an anti-electricity-theft distribution substrate of low-voltage electric energy metering box modularization, distribution substrate (1) have inside can lay as required, and have cavity (101) that electric conductor (2) of fixed trend held be provided with single or a plurality of strapping table equipment position (1a), electrical switch equipment position (1b) and electrical accessories equipment position (1c) according to actual need on distribution substrate (1) one side plane, and above-mentioned the equipment position all with electric conductor (2) through connection, the side of distribution substrate (1) be equipped with in proper order with inlet wire electrical switch structure (1d) and the electrical switch structure (1f) of being qualified for the next round of competitions that electric conductor (2) link up, distribution substrate (1) is whole can dismantle the assembly with the measurement box.

2. The modular electricity larceny prevention power distribution substrate of the low-voltage electric energy metering box as claimed in claim 1, wherein: the power distribution substrate (1) comprises a bottom plate (11) and a panel (12) which can be hinged to open and close the cavity (101), and a lock body (3) which can seal the cavity (101) in a closed state is arranged on one side of the bottom plate (11) or the panel (12).

3. The modular electricity larceny prevention power distribution substrate of the low-voltage electric energy metering box as claimed in claim 2, wherein: be equipped with on strapping table assembly position (1a) and be used for the electrically conductive terminal (4) of strapping table grafting, its one end with electric conductor (2) through connection be in with electrically conductive terminal (4) correspond be equipped with in strapping table assembly position (1a) be used for the strapping table with electrically conductive terminal (4) straight line counterpoint grafting's assembly devices.

4. The modular electricity larceny prevention power distribution substrate of the low-voltage electric energy metering box as claimed in claim 3, wherein: the assembling mechanism comprises a fixing plate (5) which is vertically arranged in the meter assembling position (1a) and corresponds to the conductive terminal (4), a sliding groove (51) is formed in the fixing plate (5) towards the direction of the conductive terminal (4), a sliding plate (52) which is perpendicular to the fixing plate (5) and is matched with a meter to be fixed is arranged in the sliding groove (51) in a sliding mode, fastening holes (53) matched with the meter are formed in two ends of the sliding plate (52), and assembling holes (1a1) matched with the fastening holes (53) are formed in the meter assembling position (1a) in a meter and conductive terminal (4) inserting and matching state.

5. The modular electricity larceny prevention power distribution substrate of the low-voltage electric energy metering box as claimed in claim 4, wherein: the electric switch assembling structure is characterized in that an assembling plate (6) for assembling an electric switch is arranged on the electric switch assembling position (1b), and a disassembling structure for detachably connecting the assembling plate (6) with the panel (12) is arranged in the position of the panel (12) where the electric switch assembling position (1b) is located.

6. The modular electricity larceny prevention power distribution substrate of the low-voltage electric energy metering box as claimed in claim 5, wherein: the disassembly structure comprises horizontal sliding grooves (1b1) symmetrically formed in the panel (12), each horizontal sliding groove (1b1) is internally provided with a limiting sliding plate (1b2) along the length direction of the assembly plate (6) in a sliding mode, and the limiting sliding plate (1b2) is close to one side of the assembly plate (6) and extends outwards from the horizontal sliding groove (1b1) to form a pressing plate (1b3) used for pressing the end portion of the limiting sliding plate (1b 2).

7. The modular electricity larceny prevention power distribution substrate of the low-voltage electric energy metering box as claimed in claim 6, wherein: the side wall of the bottom plate (11) is provided with a slot (102) which is communicated with the cavity (101) and the outside of the power distribution substrate (1), one side of the slot (102) on the panel (12) is provided with a socket (103), and the slot (102) is inserted with a heat dissipation plate (7) with a heat dissipation hole (71) through the socket (103).

8. The modular electricity larceny prevention power distribution substrate of the low-voltage electric energy metering box as claimed in claim 7, wherein: and the corner of the bottom plate (11) is provided with an arc waist hole (104) for integrally fixing the power distribution substrate (1) in the metering box body.

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