A modular anti-theft power distribution substrate for low-voltage electric energy metering box

Abstract

The present invention discloses a modular anti-electricity theft distribution substrate for a low-voltage electric energy metering box. The distribution substrate is a cavity that can be arranged as needed and has a fixed direction to accommodate conductors. It can be opened and closed in a hinged manner through a bottom plate and a panel. An electromagnetic lock is provided inside to increase the safety of electricity use and enhance protection. The distribution substrate as a whole can be detachably assembled with the metering box. A single-layer or multi-layer conductor direction is arranged in the cavity on one side of the distribution substrate according to actual needs, and a single or multiple meter position assembly positions, electrical switch assembly positions, and electrical accessories assembly positions are arranged on the other side panel according to actual needs. The distribution substrate adopts a layout method in which a conductor suitable for a certain load is wrapped in the cavity of the distribution substrate, which prevents the conductor from directly contacting the outside, improves the safety of the distribution substrate and the metering box, and at the same time, the built-in conductor has the function of preventing electricity theft, avoiding the loss of electricity used by users, and improving the economy of electricity use.

Description

Technical Field

[0001] The invention relates to the technical field of low-voltage electric energy metering boxes, and in particular to a modular anti-electricity theft distribution substrate for a low-voltage electric energy metering box. Background Art

[0002] The meter box is a collection of metering instruments and auxiliary equipment necessary for measuring electric energy, including electric energy meters, voltage and current transformers for measurement and their secondary circuits, electric energy metering panels, cabinets, boxes, etc. The meter box can be installed in a hanging or floor-standing manner. At present, the meter boxes, switches and other power distribution devices hung inside the conventional meter boxes are relatively random in the internal planning and wiring connection of the meter boxes during assembly. The overall assembly is messy and the assembly efficiency is poor, resulting in a waste of some space inside the meter box, and there are risks such as short circuits and electricity theft. At the same time, the direct assembly method also has the problem of inconsistent assembly quality, which has a certain impact on the user's electricity safety. Summary of the invention

[0003] In view of the above-mentioned problems, the present invention aims to provide a modular anti-electricity theft distribution substrate for a low-voltage electric energy meter box. The distribution substrate changes the conventional wiring method inside the meter box and changes the conventional wire wiring and connection method to a layout method in which a conductor suitable for a certain load is wrapped in the cavity of the distribution substrate, thereby preventing the conductor from directly contacting the outside and improving the safety of the distribution substrate and the meter box. At the same time, the built-in conductor has the function of preventing electricity theft, thereby avoiding the loss of electricity consumption by users.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a modular anti-theft distribution substrate for a low-voltage electric energy meter box, the distribution substrate having a cavity inside which can be arranged as needed and accommodates a conductor with a fixed direction, a single or multiple meter assembly positions, electrical switch assembly positions and electrical accessory assembly positions are arranged on a plane on one side of the distribution substrate according to actual needs, and the above-mentioned assembly positions are all directly connected to the conductor, the side of the distribution substrate is sequentially provided with an incoming electrical switch structure and an outgoing electrical switch structure that pass through the conductor, and the distribution substrate as a whole can be detachably assembled with the meter box.

[0005] Preferably, the power distribution substrate comprises a bottom plate and a panel which can be hinged to open and close the cavity, and a lock body which can seal the cavity when both are in a closed state is provided on one side of the bottom plate or the panel.

[0006] Preferably, a conductive terminal for plugging in the meter is provided on the meter assembly position, one end of which is directly connected to the conductor, and an assembly mechanism for linearly aligning the meter with the conductive terminal is provided in the meter assembly position corresponding to the conductive terminal.

[0007] Preferably, the assembly mechanism includes a fixed plate vertically arranged in the meter assembly position and corresponding to the conductive terminal, a sliding groove is provided on the fixed plate toward the conductive terminal, a sliding plate is slidably provided in the sliding groove and is perpendicular to the fixed plate and fixed to the meter, fastening holes matching the meter are provided at both ends of the sliding plate, and when the meter is in a state of plugging and mating with the conductive terminal, an assembly hole matching the fastening hole is provided on the meter assembly position.

[0008] Preferably, an assembly plate for assembling the electrical switch is provided on the electrical switch assembly position, and a disassembly structure for detachably connecting the assembly plate to the panel is provided in the position where the electrical switch assembly position is located on the panel.

[0009] Preferably, the disassembly structure includes horizontal slide grooves symmetrically opened on the panel, each of the horizontal slide grooves is provided with a limiting slide plate that slides along the length direction of the assembly plate, and a pressure plate for pressing the end of the limiting slide plate is extended outside the horizontal slide groove on the side of the limiting slide plate close to the assembly plate.

[0010] Preferably, a slot is provided on the side wall of the bottom plate to connect the cavity with the outside of the power distribution substrate, and a socket is provided on one side of the slot located on the panel, and a heat sink with heat dissipation holes is inserted into the slot through the socket.

[0011] Preferably, arc-shaped waist holes are provided at the corners of the bottom plate for fixing the power distribution substrate as a whole in the metering box.

[0012] The beneficial effects of the present invention are as follows: the power distribution substrate changes the conventional wiring method in the metering box, and changes the conventional wire wiring and connection method to a layout method that adopts a conductor suitable for a certain load in the cavity of the power distribution substrate in a sealed and wrapped manner and meets a safe distance, thereby eliminating direct contact between the conductors and the outside, and having no exposed conductive parts. It has high reliability, improves the safety of the power distribution substrate and the metering box, and at the same time, the built-in conductor has the function of preventing electricity theft, thereby avoiding the loss of electricity used by users. The conductor can be laid out in multiple layers according to actual needs to meet the needs of different electrical assembly connections. Compared with similar electrical connection technologies, it reduces many electrical wiring short circuits and electrical wiring back-connections, and the failure is greatly reduced. The substrate is designed as an upper and lower two-layer structure with a conductive layout part in the middle. The two-layer structural design improves the strength of the conductor to resist external forces.

[0013] The conductors with fixed wiring have a safe gap between each other, which has a better heat dissipation effect than the wires, improving the safety of the meter box. The meters, switches and accessories installed outside the distribution board are directly connected to the conductors, further eliminating the wiring outside the distribution board, effectively avoiding the risk of electricity theft, and improving the safety of users' electricity use. The wiring and assembly method of the distribution board can realize the modular production of the same meter box, ensure the uniform assembly quality of the meter board, ensure the safety of users' electricity use, and improve the assembly efficiency of the distribution board and the meter box.

[0014] The distribution base plate is surrounded by detachable heat sinks. When cleaning the base, there is no need to separate the upper and lower base plates. The detachable heat sinks can be used. The upper and lower base plates are assembled in an articulated manner to open and close the cavity. The installation is convenient and the combination is reliable. The electromagnetic lock is installed inside to increase the safety of electricity use and enhance protection. The distribution base plate as a whole can be detached and assembled with the metering box.

[0015] The power distribution baseboard can be formed into a series of products of various sizes, such as large, medium and small. It can be extended to various sizes of meter boxes. In addition to the ordinary metering function, it also has reserved electrical accessories assembly positions to facilitate the installation of electrical accessories such as collectors. The functional unit of the baseboard is realized, so that various functions such as meter box position control, electrical on-off control, electrical safety control, and electrical component integration are integrated to maximize the advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the power distribution substrate of the present invention.

[0017] Figure 2 It is a schematic diagram of the assembly of the power distribution substrate and the metering box of the present invention.

[0018] Figure 3 It is an enlarged schematic diagram of the bottom plate of the present invention.

[0019] Figure 4 It is a side view of the heat dissipation plate of the present invention.

[0020] Figure 5 It is an enlarged schematic diagram of the panel of the present invention.

[0021] Figure 6 It is a schematic diagram of the assembly of the meter of the present invention.

[0022] Figure 7 This is a schematic diagram of the switch assembly of the present invention.

[0023] Figure 8 It is a schematic diagram of the disassembly structure of the switch according to the present invention.

[0024] Fig. 9 It is an overall side view of the limiting slide plate and the pressing plate of the present invention.

[0025] Fig.10 This is a diagram showing the wiring arrangement of the unidirectional surface conductor of the present invention.

[0026] Fig.11 It is a diagram showing the wiring arrangement of the three-way surface conductor of the present invention.

[0027] Fig.12 This is a schematic diagram of the multi-epitope assembly of the present invention. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Refer to the attached Figures 1 to 12 A modular anti-theft power distribution substrate for a low-voltage electric energy metering box is shown, and the power distribution substrate 1 has a cavity 101 for accommodating a conductor 2 with a fixed direction that can be arranged as needed. Preferably, the conductor 2 is selected as a copper plate, a copper rod or a similar conductive material with a certain plastic deformation and a certain strength. Since such conductive materials have a certain strength, after being bent and formed according to the route direction, it is not easy to change its direction, and there is a stable wiring gap between adjacent conductors 2, so that such conductors are not prone to short circuits and have good heat dissipation compared to the currently used wire routing method. The line direction is regular, which is convenient for laying complex lines, extending the normal use cycle of the entire metering box, and reducing the number of power outages, inspections and maintenance. The layout and wiring of this conductor 2 is set in the cavity 101 of the power distribution substrate 1, so that the conductor 2 is prevented from directly contacting the outside, improving the safety of the power distribution substrate 1 and the metering box (shown in Figure 10), and at the same time, the built-in conductor 2 has the function of preventing power theft, avoiding the loss of electricity consumption by users. Preferably, the conductor 2 can be arranged in multiple layers according to actual needs (such as Fig.11 As shown, the solid line is the upper conductor 2 and the dotted line is the lower conductor 2).

[0030] In order to facilitate the assembly of the meter (shown as 20 in the figure), the switch (shown as 30 in the figure) and accessories (such as electrical accessories such as the collector for background data transmission), as shown in FIG. Figure 1As shown, a single or multiple meter assembly positions 1a, electrical switch assembly positions 1b and electrical accessory assembly positions 1c are provided on one side plane of the power distribution substrate 1 according to actual needs, and the above-mentioned assembly positions are all directly connected to the conductor 2. The actual connection method is: according to the installation position of the meter, switch and accessories, the conductor 2 is arranged in the cavity 101, and the connection end of the conductor 2 and the above-mentioned components is directly connected to the component through the power distribution substrate 1 to realize the direct connection method, so as to prevent the short circuit, poor heat dissipation and easy external circuit from being stolen due to the connection between the conductor 2 and the component again through the wire traction. Since the components are generally tightly attached to the power distribution substrate 1 during assembly, the terminal of the conductor 2 passing through the power distribution substrate 1 will cover the port of the conductor 2 through the body of the component after being connected to the component, thereby realizing the effect of preventing electricity theft (such as Figure 6 as shown).

[0031] The side of the power distribution substrate 1 is provided with an incoming electrical switch structure 1d and an outgoing electrical switch structure 1f which are connected to the conductor 2 in sequence. The main power line is passed into the power distribution substrate 1 and connected to the conductor through the incoming electrical switch structure 1d. Since the switch and accessories are directly connected to the conductor 2, the user main line is connected to the cavity 101 through the outgoing electrical switch structure 1f, and connected to one end of the conductor 2 connected to the outgoing end of the switch, so as to realize the closed connection between the switch and the user main line. The wiring and wiring on the outer surface of the power distribution substrate are eliminated as a whole, which effectively solves the risk of power theft and improves the safety and economy of power use.

[0032] In order to facilitate the adaptability of the distribution substrate 1, the distribution substrate 1 is detachably assembled with the meter box. Through this detachable assembly method, the distribution substrate 1 can be assembled in meter boxes of different specifications and functions. And because the conductor 2 is arranged in the cavity of the distribution substrate 1, the overall encapsulated structure of the distribution substrate 1 improves the protection strength of the conductor 2, can withstand the integrity and integrity of the conductor 2 under irresistible external forces, and improves the reliability of electricity use.

[0033] Specifically, the power distribution substrate 1 includes a bottom plate 11 and a panel 12 that can be hinged to open and close the cavity 101 (the bottom plate 11 and the panel 12 can be hingedly connected by screws or hinges), and a lock body 3 is provided on one side of the bottom plate 11 or the panel 12, which can close the cavity 101 when the two are in a closed state. The cavity 101 can be opened by hinged means, which is convenient for laying and wiring the conductor 2 inside it. Preferably, the conductor 2 is laid on the inner side of the panel 12, and the meter, switch and accessories are arranged on the outer side of the panel 12, which is convenient for the direct connection between the conductor 2 and the component. Preferably, the lock body 3 uses an electromagnetic lock, and its lock piece 31 is inserted into the bottom plate 11 and the panel 12 to perform a locking effect. The electromagnetic lock provides power to the conductor by connecting to it, and the electromagnetic lock is in a locked state when it is powered on and in an open state when it is powered off. Therefore, it can lock the power distribution substrate 2 when the metering box is in normal use to prevent the risk of electricity theft.

[0034] Specifically, the meter assembly position 1a is provided with a conductive terminal 4 for plugging in the meter, one end of which is directly connected to the conductor 2. The setting position of the conductive terminal 4 is selected and set according to the actual position of the meter. By plugging the meter and the conductive terminal 4, a direct connection between the two is achieved, and the risk of electricity theft due to leakage at the connection point is also avoided.

[0035] In order to facilitate accurate plugging of the meter with the conductive terminal 4 during assembly, an assembly mechanism for linearly aligning the meter with the conductive terminal 4 is provided in the meter assembly position 1a corresponding to the conductive terminal 4. The assembly structure can achieve linear plugging of the meter with the conductive terminal 4, avoiding the risk of bending or breaking the conductive terminal 4 due to deviation in alignment between the meter and the conductive terminal 4 during plugging, thereby avoiding the problem of poor contact between the conductive terminal 4 and the meter when it is bent, and the problem of difficulty in replacement after breaking.

[0036] Specifically, the assembly mechanism includes a fixing plate 5 vertically arranged in the meter assembly position 1a and corresponding to the conductive terminal 4, a slide groove 51 is provided on the fixing plate 5 toward the conductive terminal 4, a slide plate 52 is slidably provided in the slide groove 51 and is perpendicular to the fixing plate 5 and is fixed to the meter, fastening holes 53 are provided at both ends of the slide plate 52 to match the meter, and when the meter is plugged and matched with the conductive terminal 4, an assembly hole 1a1 (preferably a threaded hole) is provided on the meter assembly position 1a to match the fastening hole 53. The linear plug-in function of the assembly mechanism is: firstly, the fastening hole 53 on the slide plate 52 is matched through the mounting hole of the meter, and a fastening screw is inserted into the corresponding hole, then the meter and the slide plate 52 are slid along the slide groove 51 toward the conductive terminal 4, and slide until the conductive terminal 4 is plugged into the meter, and the fastening screw corresponds to the assembly hole 1a1, and finally the fastening screw is fastened in the assembly hole 1a1 to achieve the fastening of the meter after plugging. During this process, the meter slides linearly along the slide groove 51 toward the conductive terminal 4 through the slide plate 52, thereby realizing a linear connection between the meter and the conductive terminal 4, thereby avoiding the problem of connection deviation when the two are connected, which may cause the meter to bend or break the conductive terminal 4 due to external force, thereby avoiding the problem of poor contact after connection or difficulty in replacing the conductive terminal 4, thereby improving the accuracy and speed of distribution board assembly.

[0037] Since the switch and the conductor 2 are directly connected, and the conductor 2 has a certain strength, the connection between the switch and the conductor has certain limitations compared to the flexible connection of the wire. In order to solve this problem and facilitate the assembly and disassembly of the switch, the electrical switch assembly position 1b is provided with an assembly plate 6 for assembling the electrical switch (an adapted assembly plate can be selected according to the actual switch structure, such as a slide rail that matches the air switch), and a disassembly structure for detachably connecting the assembly plate 6 with the panel 12 is provided in the electrical switch assembly position 1b located at the panel 12. During assembly, the switch is first assembled on the assembly plate 6, and then the switch is directly connected with the corresponding conductor 2 (preferably in the same plug-in connection mode as the meter). After the connection is completed, the two ends of the assembly plate 6 are fixed and limited by the disassembly structure, thereby limiting the connection position of the switch and completing the connection and tightening assembly of the switch. At the same time, the disassembly structure can disassemble the assembly plate 6 and the switch as a whole, which is convenient for the inspection and replacement of the switch.

[0038] Specifically, Figure 7-9As shown, the disassembly structure includes horizontal slide grooves 1b1 symmetrically opened on the panel 12, and each of the horizontal slide grooves 1b1 is provided with a limit slide plate 1b2 slidingly arranged along the length direction of the assembly plate 6, and a pressing plate 1b3 for pressing the end of the limit slide plate 1b2 is extended outside the horizontal slide groove 1b1 on the side of the limit slide plate 1b2 close to the assembly plate 6. Its function is: when the switch is connected and fixed to the conductor 2, and the position of the assembly plate 6 is fixed, the limit slide plates 1b2 on both sides are slid along the horizontal slide groove 1b1 toward the two ends of the assembly plate 6, and the pressing plate 1b3 overlaps with the two sections of the assembly plate 6, and then the pressing plate 1b3 is pressed on the two ends of the assembly plate 6, so that the connection position of the assembly plate 6 and the switch is pressed, and the switch is tightened. Preferably, a pressing protrusion 1b4 is provided at intervals on the contact surface between the pressing plate 1b3 and the assembly plate 6. The pressing protrusion 1b4 can firstly press the assembly plate 6 and the switch, and secondly increase the contact friction with the assembly plate to further press the assembly plate 6 and the switch. Preferably, shoulders 61 matching the pressing plate 1b3 are provided at both ends of the assembly plate 6. The shoulders 61 further limit the vertical sliding of the assembly plate 6 relative to the pressing plate 1b3 to prevent the switch from falling under the action of external force.

[0039] In order to solve the heat dissipation problem of the conductor 2 in the inner cavity 101, as Figure 3 As shown, the side wall of the bottom plate 11 is provided with a slot 102 that connects the cavity 101 with the outside of the power distribution substrate 1, and a socket 103 is provided on the side of the slot 102 located on the panel 12, and a heat sink 7 with heat dissipation holes 71 is inserted into the slot 102 through the socket 103. The heat sink 7 can effectively dissipate heat for the conductor 2 on the one hand, and can also effectively reduce the impact of the outdoor environment on the conductor 2, especially the problem of dust adhering to the conductor 2 and having a certain corrosive effect on the conductor 2. The heat sink 7 is pluggable in the slot 102, so that when there is a lot of dust and debris adhering to the conductor 2, after the heat sink 7 is taken out, it is convenient to purge the cavity 101 and the conductor 2, so as to achieve rapid maintenance operations and improve the functional effects of the power distribution substrate 1. In order to clamp the heat sink 7 and the slot 102 , preferably, clamping protrusions 72 are provided on both sides of the heat sink 7 , which are tightly matched with the side walls of the slot 102 to clamp the heat sink 7 in the slot 102 .

[0040] In order to facilitate the assembly and fixation of the distribution substrate 1 as a whole in the metering box, the corners of the bottom plate 11 are provided with arc-shaped waist holes 104 for fixing the distribution substrate 1 as a whole in the metering box. In the metering box with a reserved mounting hole, the distribution substrate 1 can be fixed as a whole in the metering box by cooperating with the mounting hole through the arc-shaped waist hole 104. The arc-shaped waist hole 104 has a hole adjustment function. When there is a misalignment between the mounting hole of the metering box and the distribution substrate 1, the arc-shaped waist hole 104 can adjust the misalignment well, which facilitates the smooth installation of the distribution substrate 1. In order to improve the insulation and flame retardancy of the metering box and the distribution substrate 1, preferably, both are made of high insulation and flame retardant materials.

[0041] The principle of the present invention is: the distribution substrate changes the conventional wire bundling wiring method in the metering box, and changes the conventional wire wiring and connection method to a layout method that uses a conductor suitable for a certain load in the cavity of the distribution substrate and meets the safety distance, thereby eliminating direct contact between the conductors and the outside, improving the safety of the inside of the distribution substrate and the metering box. At the same time, the built-in conductor has the function of preventing electricity theft, avoiding the loss of electricity for users. In addition, the conductors with fixed routing have gaps between each other, which have a better heat dissipation effect than the wires, improving the safety of the metering box. The meters, switches and accessories outside the distribution substrate are directly connected to the conductors, further eliminating the routing outside the distribution substrate, and can effectively avoid the risk of electricity theft, and can also improve the safety of electricity use for users.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A modular anti-theft power distribution substrate for a low-voltage electric energy metering box, wherein the distribution substrate (1) has a cavity (101) for accommodating a conductor (2) with a fixed direction, and a single or multiple meter assembly positions (1a), electrical switch assembly positions (1b) and electrical accessory assembly positions (1c) are arranged on a plane on one side of the distribution substrate (1) according to actual needs, and the above-mentioned assembly positions are all directly connected to the conductor (2), and the side of the distribution substrate (1) is sequentially provided with an incoming line electrical switch structure (1d) and an outgoing line electrical switch structure (1f) that penetrate the conductor (2), and the distribution substrate (1) as a whole can be detachably assembled with the metering box; The conductor (2) is made of a copper plate, a copper rod or a similar conductive material. After being bent and formed along the route, the conductive material is not easy to change its direction, and there is a stable wiring gap between adjacent conductors (2); 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) is provided on one side of the bottom plate (11) or the panel (12) which can seal the cavity (101) when the two are in a closed state; The meter assembly position (1a) is provided with a conductive terminal (4) for plugging in the meter, one end of which is directly connected to the conductor (2), and an assembly mechanism for linearly aligning and plugging the meter with the conductive terminal (4) is provided in the meter assembly position (1a) corresponding to the conductive terminal (4); The assembly mechanism comprises a fixing plate (5) vertically arranged in the meter assembly position (1a) and corresponding to the conductive terminal (4); a slide groove (51) is provided on the fixing plate (5) in the direction of the conductive terminal (4); a slide plate (52) is slidably provided in the slide groove (51) and is perpendicular to the fixing plate (5) and is fixed to the meter; fastening holes (53) are provided at both ends of the slide plate (52) to match the meter; and when the meter is plugged and matched with the conductive terminal (4), an assembly hole (1a1) matching the fastening hole (53) is provided on the meter assembly position (1a); An assembly plate (6) for assembling the electrical switch is provided on the electrical switch assembly position (1b), and a disassembly structure for detachably connecting the assembly plate (6) and the panel (12) is provided in the position of the electrical switch assembly position (1b) located on the panel (12); The disassembly structure comprises horizontal slide grooves (1b1) symmetrically opened on the panel (12), each of the horizontal slide grooves (1b1) being provided with a limit slide plate (1b2) slidingly arranged along the length direction of the assembly plate (6), and a pressing plate (1b3) for pressing the end of the limit slide plate (1b2) extending outward from the horizontal slide groove (1b1) on the side of the limit slide plate (1b2) close to the assembly plate (6).

2. A modular anti-theft power distribution substrate for a low-voltage electric energy metering box according to claim 1, characterized in that: A slot (102) is provided on the side wall of the bottom plate (11) to connect the cavity (101) with the outside of the power distribution substrate (1), and a socket (103) is provided on the slot (102) on one side of the panel (12), and a heat sink (7) having heat dissipation holes (71) is inserted into the slot (102) through the socket (103).

3. A modular anti-theft power distribution substrate for a low-voltage electric energy metering box according to claim 2, characterized in that: The corners of the bottom plate (11) are provided with arc-shaped waist holes (104) for fixing the power distribution substrate (1) as a whole in the metering box.

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