Intelligent safe ammeter terminal

Abstract

The utility model relates to an intelligent safety electricity meter terminal, which comprises a shell, an electricity meter management terminal and at least one group of safety electricity meters, the safety electricity meters are connected with a data interface of the electricity meter management terminal, and data transmission and safety verification of the safety electricity meters are respectively managed through the electricity meter management terminal; in the electric meter terminal, a plurality of safe electric meters can share one electric meter management terminal, and safety certification management and communication management are respectively carried out on the safe electric meters through the electric meter management terminal, so that the size of the electric meters is reduced, and the occupied space of a single electric meter is reduced; as long as the newly added safe ammeter is connected to the data interface of the ammeter management terminal, and the ammeter management terminal manages the data transmission process of the safe ammeter in a unified manner, safe data transmission can be realized, and ammeter installation and management are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electricity terminal equipment, in particular to an intelligent safety meter terminal. Background Art

[0002] The meter box is an important device for the public power grid to provide electricity to users. It is mainly used to receive and distribute electric energy. It is generally used for power supply to multiple users in residential buildings. At present, the traditional meter box concentrates the corresponding meters of each user in one place for easy management and protection. As for the security of power data, data protection is performed through the security chip and encryption module corresponding to each meter. Therefore, each meter needs to be equipped with a security chip or communication module to ensure the security of the meter data. This causes the volume occupied by a single meter to be too large, and each meter box can accommodate a limited number of meters. Often, multiple meter boxes are required in a building to meet the power supply needs, and the cost of power equipment is high. In addition, the internal wiring of the traditional meter box is not strong enough, resulting in unstable internal wiring of the meter box. During the use of the meter box, once the internal wiring is pulled by external force, the wiring end will fall off from the component, causing the cable to loosen and slip, bringing hidden dangers to the safety of the power grid operation. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides an intelligent safety meter terminal, which specifically adopts the following technical solutions:

[0004] An intelligent safety meter terminal comprises a housing, a meter management terminal and at least one group of safety meters, wherein the meter management terminal is provided with at least one group of data interfaces, the safety meters are connected to the data interfaces of the meter management terminal, and the data transmission and safety verification of the safety meters are respectively managed by the meter management terminal;

[0005] The meter management terminal includes a central control management chip, a security authentication module and a communication module. The central control management chip is used to manage the two-way information transmission between the external and the safety meter; the security authentication module is used to verify the access information of the application for access to the safety meter and allocate the corresponding data interface; the communication module is used to transmit the verified access information to the corresponding safety meter and transmit the power data of the corresponding safety meter;

[0006] The safety electric meter includes a metering module, a microprocessor, a data storage device and a data exchange unit. The data storage device is connected to the microprocessor, the output end of the metering module is connected to the microprocessor, the microprocessor is connected to the data exchange unit, and the data exchange unit is connected to the data interface of the electric meter management terminal.

[0007] Preferably: the security authentication module includes a security authentication chip and a permission management module, the security authentication chip is used to verify the digital signature of the access information, when the digital signature verification is passed, the permission management module controls the opening of the communication permission of the corresponding data interface according to the access object in the access information, and at the same time, the permission management module issues the access permission of the corresponding functional module to the corresponding safety meter according to the access content in the access information, and the safety meter controls the corresponding functional module to communicate with the meter management terminal according to the issued access permission.

[0008] Preferably, a wiring terminal is provided between the safety meter and the meter management terminal, the wiring terminal is provided with a plurality of wiring units connected in parallel, each wiring unit comprises a wiring part and a fixing part, the wiring part is used to conduct the cable between the meter management terminal and the safety meter, and the fixing part is used to fix the position of the cable.

[0009] Preferably, the fixing portion comprises a first clamping seat, a second clamping seat and a clamping block, wherein the clamping seat and the second clamping seat are arranged opposite to each other, at least one group of the clamping blocks is provided on the clamping surface of the first clamping seat, at least one group of the clamping blocks is provided on the clamping surface of the second clamping seat, and the clamping blocks of the first clamping seat and the clamping blocks of the second clamping seat are arranged alternately.

[0010] Preferably, the clamping surface of the first clamping seat is provided with at least one first arc-shaped pressure groove, and the clamping surface of the second clamping seat is provided with a second arc-shaped pressure groove matching with the first arc-shaped pressure groove, and the first arc-shaped pressure groove and the second arc-shaped pressure groove cooperate to form a clamping cavity; the surfaces of the first arc-shaped pressure groove and the second arc-shaped pressure groove are respectively provided with a plurality of mounting slot holes, and the clamping block is embedded and fixed in the mounting slot holes.

[0011] Preferably, the clamping block includes a rubber lining and clamping teeth, the rubber lining is coated on the side of the clamping teeth, and the head of the clamping teeth is provided with a plurality of spikes, and when the first clamping seat and the second clamping seat clamp the cable, the spikes of the clamping teeth will partially penetrate the rubber of the cable.

[0012] Preferably, the opening width of the mounting slot is smaller than the bottom width of the mounting slot, and the upper width of the rubber lining in the corresponding clamping block is smaller than the lower width of the rubber lining; the width of the clamping teeth is smaller than the opening width of the mounting slot.

[0013] Preferably, fixing holes are provided at both ends of the second clamping seat, screws are provided in the fixing holes, and the screws at both ends of the second clamping seat pass through the fixing holes to fix the second clamping seat in the housing.

[0014] Preferably, at least one guide block is provided on the opposite sides of the first clamping seat, and a guide groove matching the guide block is provided on the second clamping seat. The guide block is engaged in the guide groove, and as the first clamping seat and the second clamping seat move relative to or away from each other, the guide block will reciprocate in the guide groove.

[0015] Preferably, a first connecting hole is provided in the middle of the first clamping seat, and a connecting bolt is provided in the first connecting hole; a second connecting hole is provided in the middle of the second clamping seat, and a limiting groove is provided at the bottom of the second connecting hole, and a regular hexagonal nut is embedded in the limiting groove; after the screw rod of the connecting bolt passes through the first connecting hole and the second connecting hole in turn, the screw rod of the connecting bolt is threadedly connected with the regular hexagonal nut to achieve relative clamping of the first clamping seat and the second clamping seat. Beneficial Effects

[0016] The technical solution of the utility model has the following beneficial effects:

[0017] In the intelligent safety meter terminal of the utility model, multiple safety meters can share one meter management terminal, and the safety meters can be separately managed for security authentication and communication through the meter management terminal, so as to reduce the size of the meters and the space occupied by a single meter. For new users, it is only necessary to connect the new safety meters to the data interface of the meter management terminal, and the meter management terminal can uniformly manage the data transmission process of the safety meters to realize secure data transmission.

[0018] (2) In the intelligent safety meter terminal of the utility model, the wiring terminal is modified to be divided into a wiring part and a fixing part. The cable is clamped and fixed by the relatively clamped clamping seat in the fixing part. At the same time, the clamping block between the clamping seats is used to increase the contact pressure between the clamping seat and the cable surface, thereby improving the clamping force applied by the clamping block to the cable, making the cable have better resistance to pulling, so as to avoid the cable falling off, thereby improving the safety of electricity use in the meter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the intelligent safety meter terminal in the utility model.

[0020] Figure 2 This is a schematic diagram of the system structure of the intelligent safety meter terminal in the utility model.

[0021] Figure 3 The utility model is a schematic diagram of the assembly structure of the fixed part of the wiring terminal.

[0022] Figure 4 It is a schematic diagram of the overall structure of the first clamping seat in the utility model.

[0023] Figure 5It is a schematic diagram of the forward structure of the first clamping seat in the utility model.

[0024] Figure 6 It is a schematic diagram of the overall structure of the second clamping seat in the utility model.

[0025] Figure 7 This is a schematic diagram of the main structure of the second clamping seat in the utility model.

[0026] Figure 8 It is a structural schematic diagram of the clamping block in the utility model.

[0027] 1-shell; 2-electric meter management terminal; 3-wiring part; 4-fixing part; 401-first clamping seat; 4011-first arc-shaped pressing groove; 4012-first connecting hole; 4013-guide block; 402-second clamping seat; 4021-second arc-shaped pressing groove; 4022-second connecting hole; 4023-guide groove; 403-clamping block; 4031-clamping teeth; 4032-rubber lining; 5-safety electric meter. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model. It should be pointed out that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present application.

[0029] Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those generally understood by those of ordinary skill in the art to which this application belongs. It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] Combined with Figure 1-8As shown, in this embodiment, a smart safety meter terminal is specifically disclosed, which includes a housing 1, a meter management terminal 2 and at least one group of safety meters 5. The meter management terminal 2 is provided with at least one group of data interfaces, and the safety meters 5 are connected to the data interfaces of the meter management terminal 2. The data transmission and safety verification of the safety meters 5 are respectively managed by the meter management terminal 2. The meter terminal can realize centralized control and management of multiple safety meters 5, and the safety of power data can be guaranteed by the meter management terminal 2. For the safety meters in the meter box, there is no need to add a safety chip and a communication module, which greatly reduces the volume of the safety meters, so that more meters can be accommodated in the same meter box to reduce the cost of power installation.

[0031] Specifically, the meter management terminal described in this embodiment includes a central control management chip, a security authentication module and a communication module, wherein the central control management chip is used to manage the two-way information transmission between the outside and the safety meter; the security authentication module is used to verify the access information for applying to access the safety meter and allocate the corresponding data interface; the communication module is used to transmit the verified access information to the corresponding safety meter and transmit the power data of the corresponding safety meter. The security authentication module includes a security authentication chip and a permission management module, wherein the security authentication chip is used to verify the digital signature of the access information, when the digital signature verification is passed, the permission management module controls the communication permission of the corresponding data interface according to the access object in the access information, and at the same time, the permission management module issues the access permission of the corresponding functional module to the corresponding safety meter according to the access content in the access information, and the safety meter controls the corresponding functional module to communicate with the meter management terminal according to the issued access permission.

[0032] External access requests can be transmitted to the meter management terminal of the meter box via the power cable. The access request is received by the central control management chip, and the access information is parsed. The access information can be first verified by the security authentication chip, such as whether the access source is legal, whether the accessed safety meter is legal, etc. When the access information is verified, the permission management module will assign the access information to the data interface of the corresponding safety meter, and issue the corresponding access rights at the same time, so that the communication module of the power management terminal and the data exchange unit of the safety meter to be accessed can establish a communication channel to realize data transmission. It should be noted that in this embodiment, the power data of the safety meter is uniformly sent to the power management terminal, and the power management terminal encrypts the data and sends it outward to ensure the security of data transmission. At the same time, it is not necessary to send keys to all safety meters, which can reduce the demand for keys.

[0033] Furthermore, the safety meter 5 in this embodiment includes a metering module, a microprocessor, a data storage device and a data exchange unit. The data storage device is connected to the microprocessor, the output end of the metering module is connected to the microprocessor, the microprocessor is connected to the data exchange unit, and the data exchange unit is connected to the data interface of the meter management terminal. The safety meter does not need to add a safety chip and a communication module, which can greatly reduce the size of the safety meter. Figure 2 As shown, in this embodiment, the metering unit collects the power data of the meter terminal and transmits it to the microprocessor for analysis and statistics. The power data can be stored in the data storage device on the one hand, and can also be output to the meter management terminal 2 through the data exchange unit on the other hand. At the same time, the safety meter can also be provided with a clock module and a display unit, and the power data can be intuitively displayed through the display unit. At the same time, the clock module can be used to time-mark the meter data, so as to facilitate the classification and summary of the power data.

[0034] Furthermore, in this embodiment, a wiring terminal is provided between the safety meter 5 and the meter management terminal 2, and the wiring terminal is provided with a plurality of wiring units connected side by side, and each wiring unit includes a wiring part 3 and a fixing part 4, and the wiring part 3 is used to conduct the cable between the meter management terminal 2 and the safety meter 5, and the fixing part 4 is used to fix the position of the cable. In this embodiment, the metal connector at the end of the cable is directly connected to the wiring part 3, and the position of the cable near the end passes through the fixing part 4. The fixing part 4 relatively clamps the cable to avoid cable movement, improve the cable's resistance to pulling, and prevent the cable from detaching from the wiring part 3. It should be noted that in this embodiment, the wiring part 3 and the fixing part 4 can be arranged in a split structure, or in an integrated structure, and the wiring part 3 can adopt the wiring metal pressing sheet structure of the existing wiring terminal.

[0035] Specific, combined Figure 3 As shown, the fixing part 4 in this embodiment includes a first clamping seat 401, a second clamping seat 402 and a clamping block 403, wherein the first clamping seat 401 is arranged opposite to the second clamping seat 402, at least one group of the clamping blocks 403 is provided on the clamping surface of the first clamping seat 401, at least one group of the clamping blocks 403 is provided on the clamping surface of the second clamping seat 402, and the clamping blocks 403 of the first clamping seat 401 and the clamping blocks 403 of the second clamping seat 402 are arranged alternately. In this embodiment, when the first clamping seat 401 and the second clamping seat 402 are clamped relative to each other, pressure will be applied to the surface of the cable, and the cable will be pressed by the clamping blocks 403 located on the surface respectively. Since the clamping blocks 403 on the surfaces of the two are arranged alternately, after the cable is clamped, the cable axis will present certain twists and turns, so that the axis of the clamped cable will not remain on the same axis, and then when the cable is pulled, the cable will be subjected to a higher pulling force because the force direction is not on the same straight line.

[0036] Further, combined with Figure 4-7 As shown, in this embodiment, in order to improve the adaptability between the cable and the clamping seat, the clamping surface of the first clamping seat 401 is provided with at least one first arc-shaped pressing groove 4011, and the clamping surface of the second clamping seat 402 is provided with a second arc-shaped pressing groove 4021 that matches the first arc-shaped pressing groove 4011, and the first arc-shaped pressing groove 4011 and the second arc-shaped pressing groove 4021 cooperate to form a clamping cavity. When the first clamping seat 401 and the second clamping seat 402 clamp the cable relatively, the cable will be located in the clamping cavity formed by the first arc-shaped pressing groove 4011 and the second arc-shaped pressing groove 4021, so as to avoid the cable being not fixed in the clamping position of the clamping seat, resulting in the clamping seat being not firmly fixed.

[0037] Furthermore, in order to enhance the clamping pressure of the clamping seat, a plurality of mounting slots are respectively provided on the surfaces of the first arc-shaped pressing groove 4011 and the second arc-shaped pressing groove 4021, and the clamping blocks 403 are embedded and fixed in the mounting slots. Figure 3-6 It should be noted that the clamping block 403 and the clamping seat in this embodiment are detachably connected. Due to the different hardness of different cables, the required clamping pressure is also different. When the cable material is soft, the required clamping pressure on the cable surface needs to be appropriately increased, while when the cable material is hard, the required clamping pressure on the cable surface can be appropriately reduced. Therefore, by fitting the clamping blocks 403 in different installation slots in the clamping seat, the spacing between the clamping blocks 403 can be adjusted, and then the appropriate clamping force can be applied to cables of different materials.

[0038] Detailed, combined Figure 8 As shown, the clamping block 403 in this embodiment includes a rubber lining 4032 and a clamping tooth 4031. The rubber lining 4032 is coated on the side of the clamping tooth 4031, and the head of the clamping tooth 4031 is provided with a plurality of spikes. When the first clamping seat 401 and the second clamping seat 402 clamp the cable, the spikes of the clamping tooth 4031 will partially penetrate the rubber of the cable. Furthermore, the opening width of the mounting slot is smaller than the bottom width of the mounting slot, and the upper width of the rubber lining 4032 in the corresponding clamping block 403 is smaller than the lower width of the rubber lining 4032; the width of the clamping tooth 4031 is smaller than the opening width of the mounting slot. The clamping teeth 4031 described in this embodiment are in direct contact with the rubber on the surface of the cable through the spikes on the head, and are relatively clamped by the clamping seat, so that the spikes of the clamping teeth 4031 will partially penetrate into the rubber, thereby improving the fixing effect between the cable and the clamping seat and preventing the cable from being pulled out; at the same time, the clamping teeth 4031 in this embodiment are first wrapped by a rubber lining 4032 with a relatively soft material, and then embedded in the installation slot. On the one hand, it is convenient to disassemble the clamping block 403 and the clamping seat, and on the other hand, the gap between the clamping block 403 and the installation slot is filled by the rubber lining 4032, which can prevent the clamping block 403 from shaking.

[0039] In addition, the wiring terminal in this embodiment is fixed inside the meter housing 1. Specifically, Figure 6 and Figure 7 As shown, fixing holes are provided at both ends of the second clamping seat 402 , screws are provided in the fixing holes, and the screws at both ends of the second clamping seat 402 pass through the fixing holes to fix the second clamping seat 402 in the housing 1 .

[0040] Furthermore, combined Figure 4-7 As shown, in this embodiment, at least one guide block 4013 is respectively provided on the opposite sides of the first clamping seat 401, and a guide groove 4023 matching with the guide block 4013 is provided on the second clamping seat 402. The guide block 4013 is engaged with the guide groove 4023. As the first clamping seat 401 and the second clamping seat 402 move relative to or away from each other, the guide block 4013 will reciprocate in the guide groove 4023. Through the cooperation between the guide block 4013 and the guide groove 4023, misalignment can be avoided when the first clamping seat 401 and the second clamping seat 402 move relative to or away from each other. Furthermore, a first connection hole 4012 is provided in the middle of the first clamping seat 401, and a connection bolt is provided in the first connection hole 4012; a second connection hole 4022 is provided in the middle of the second clamping seat 402, and a limiting groove is provided at the bottom of the second connection hole 4022, and a regular hexagonal nut is embedded in the limiting groove; after the screw of the connection bolt passes through the first connection hole 4012 and the second connection hole 4022 in sequence, the screw of the connection bolt is threadedly connected with the regular hexagonal nut to achieve relative clamping of the first clamping seat 401 and the second clamping seat 402. Through the above structure, when the first clamping seat 401 and the second clamping seat 402 are relatively clamped to the cable, only the connection bolt needs to be screwed to apply pressure to the first clamping seat 401 and the second clamping seat 402 respectively.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An intelligent safety meter terminal, characterized in that: It comprises a housing, an electric meter management terminal and at least one group of safety electric meters, wherein the electric meter management terminal is provided with at least one group of data interfaces, the safety electric meters are connected to the data interfaces of the electric meter management terminal, and the data transmission and safety verification of the safety electric meters are respectively managed by the electric meter management terminal; The meter management terminal includes a central control management chip, a security authentication module and a communication module. The central control management chip is used to manage the two-way information transmission between the external and the safety meter; the security authentication module is used to verify the access information of the application for access to the safety meter and allocate the corresponding data interface; the communication module is used to transmit the verified access information to the corresponding safety meter and transmit the power data of the corresponding safety meter; The safety electric meter includes a metering module, a microprocessor, a data storage device and a data exchange unit. The data storage device is connected to the microprocessor, the output end of the metering module is connected to the microprocessor, the microprocessor is connected to the data exchange unit, and the data exchange unit is connected to the data interface of the electric meter management terminal.

2. The intelligent safety meter terminal according to claim 1, characterized in that: The security authentication module includes a security authentication chip and a permission management module. The security authentication chip is used to verify the digital signature of the access information. When the digital signature verification is passed, the permission management module controls the communication permission of the corresponding data interface according to the access object in the access information. At the same time, the permission management module issues the access permission of the corresponding functional module to the corresponding safety meter according to the access content in the access information. The safety meter controls the corresponding functional module to communicate with the meter management terminal according to the issued access permission.

3. The intelligent safety meter terminal according to claim 1, characterized in that: A wiring terminal is provided between the safety meter and the meter management terminal. The wiring terminal is provided with a plurality of wiring units connected in parallel. Each wiring unit includes a wiring part and a fixing part. The wiring part is used to conduct the cable between the meter management terminal and the safety meter, and the fixing part is used to fix the position of the cable.

4. The intelligent safety meter terminal according to claim 3, characterized in that: The fixing part includes a first clamping seat, a second clamping seat and a clamping block, wherein the clamping seat and the second clamping seat are arranged opposite to each other, at least one group of the clamping blocks is provided on the clamping surface of the first clamping seat, at least one group of the clamping blocks is provided on the clamping surface of the second clamping seat, and the clamping blocks of the first clamping seat and the clamping blocks of the second clamping seat are arranged alternately.

5. The intelligent safety meter terminal according to claim 4, characterized in that: The clamping surface of the first clamping seat is provided with at least one first arc-shaped pressure groove, and the clamping surface of the second clamping seat is provided with a second arc-shaped pressure groove matching the first arc-shaped pressure groove, and the first arc-shaped pressure groove and the second arc-shaped pressure groove cooperate to form a clamping cavity; the surfaces of the first arc-shaped pressure groove and the second arc-shaped pressure groove are respectively provided with a plurality of mounting slot holes, and the clamping block is embedded and fixed in the mounting slot holes.

6. The intelligent safety meter terminal according to claim 5, characterized in that: The clamping block includes a rubber lining and clamping teeth, the rubber lining is coated on the side of the clamping teeth, and the head of the clamping teeth is provided with a plurality of spikes. When the first clamping seat and the second clamping seat clamp the cable, the spikes of the clamping teeth will partially penetrate the rubber of the cable.

7. The intelligent safety meter terminal according to claim 6, characterized in that: The opening width of the mounting slot is smaller than the bottom width of the mounting slot, and the upper width of the rubber lining in the corresponding clamping block is smaller than the lower width of the rubber lining; the width of the clamping teeth is smaller than the opening width of the mounting slot.

8. The intelligent safety meter terminal according to claim 4, characterized in that: The second clamping seat is provided with fixing holes at both ends, and screws are arranged in the fixing holes. The screws at both ends of the second clamping seat pass through the fixing holes to fix the second clamping seat in the shell.

9. The intelligent safety meter terminal according to claim 4, characterized in that: At least one guide block is respectively arranged on the opposite sides of the first clamping seat, and a guide groove matching with the guide block is arranged on the second clamping seat. The guide block is engaged in the guide groove. When the first clamping seat and the second clamping seat move relative to or away from each other, the guide block will reciprocate in the guide groove.

10. The intelligent safety meter terminal according to claim 4, characterized in that: A first connecting hole is provided in the middle of the first clamping seat, and a connecting bolt is provided in the first connecting hole; a second connecting hole is provided in the middle of the second clamping seat, and a limiting groove is provided at the bottom of the second connecting hole, and a regular hexagonal nut is embedded in the limiting groove; after the screw rod of the connecting bolt passes through the first connecting hole and the second connecting hole in turn, the screw rod of the connecting bolt is threadedly connected with the regular hexagonal nut to realize relative clamping of the first clamping seat and the second clamping seat.

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