Static direct-current electric energy meter with independent uplink communication function

Abstract

The utility model discloses a static direct current electric energy meter with an independent uplink communication function, which belongs to the technical field of direct current electric energy meters and comprises an upper shell and a lower shell, the bottom end of the upper shell is fixedly connected with the lower shell, the upper shell is communicated with the interior of the lower shell, and a plurality of mounting components are arranged at the outer end of the upper shell. Two wiring assemblies are arranged in the mounting assembly, a network cable interface is formed in the outer end of the upper shell, a cellular network interface is formed in the outer end of the lower shell, each wiring assembly comprises a connecting piece, one end of each connecting piece is fixedly connected with a fixing piece, and a plurality of fixing pieces are arranged at the outer end of the upper shell; the wiring assembly installed in the installation assembly can be inserted through a conducting rod, and during wiring, the wiring assembly can be taken down for operation firstly, an electric wire is connected to the wiring assembly, and then the wiring assembly is inserted back through the conducting rod, so that a worker does not need to conduct wiring in a narrow distribution box, and the efficiency of installing the direct-current electric energy meter can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of DC watt-hour meters, and more specifically, to a static DC watt-hour meter with an independent uplink communication function. Background Technique

[0002] A DC watt-hour meter is an instrument used to measure the consumption or generation of DC electric energy, and is usually used to monitor and record the electric energy usage in a DC power supply system, such as solar panels, electric vehicle charging piles, and DC power supply systems. The principle of a DC watt-hour meter is different from that of an AC watt-hour meter. A DC watt-hour meter measures DC current by using a Hall effect sensor or resistance measurement, while an AC watt-hour meter usually uses a current transformer (CT) to measure AC current.

[0003] The patent with the Chinese patent publication number CN210720529U discloses a DC watt-hour meter with a multi-mode communication function. Through the RS-485 module, data can be started and sent, and transparent transmission can be achieved, which is convenient for users to use. It has a small volume, a metal shell, good shielding performance, strong anti-interference ability, and uses highly reliable devices such as integrated power amplifiers and TCXO inside. It adopts an advanced GFSK modulation method, which improves the utilization rate of frequency resources and the anti-interference ability of the product. The half-duplex communication method can conveniently provide two-way data signal transmission, detection, and control for users. The sending and receiving time is less than 18mS (communication rate of 9600bps), and the timeliness is strong.

[0004] When installing a DC watt-hour meter, it needs to be installed in an electrical box, and then the wires are connected to the DC watt-hour meter in sequence. When wiring in the above scheme, it requires workers to operate inside the electrical box and connect the wires to the watt-hour meter. Since the space inside the electrical box is relatively narrow, it is not convenient to operate during wiring, reducing the installation efficiency.

[0005] Therefore, it is necessary to provide a static DC watt-hour meter with an independent uplink communication function to solve the above problems. Content of the Utility Model

[0006] The utility model provides a static DC watt-hour meter with an independent uplink communication function, which can improve the problem in the related technology that when operating inside an electrical box and connecting wires to the watt-hour meter, due to the relatively narrow space inside the electrical box, it is not convenient to operate during wiring, reducing the installation efficiency.

[0007] The embodiment of the present application provides a stationary DC energy meter with an independent uplink communication function, including an upper housing and a lower housing. The bottom end of the upper housing is fixedly connected to the lower housing, and the inside of the upper housing and the lower housing is connected. A plurality of installation components are arranged at the outer end of the upper housing. Two wiring components are arranged inside the installation components. A network cable interface is arranged at the outer end of the upper housing, and a cellular network interface is arranged at the outer end of the lower housing. The wiring component includes a connecting piece, one end of the connecting piece is fixedly connected with a fixing piece, the end of the connecting piece far away from the fixing piece is fixedly connected with a elastic piece, and one end of the elastic piece is fixedly connected with an abutting block.

[0008] In the above technical solution of the embodiment of the present application, it has at least the following technical effects:

[0009] (1) A plurality of installation components are arranged at the outer end of the upper housing, and the wiring components installed inside the installation components can be inserted through conductive rods. When wiring, the wiring components can be removed first, and after connecting the wires to the wiring components, they can be inserted back through the conductive rods, so that the staff does not need to wire in a narrow distribution box, which can improve the efficiency of installing the DC energy meter.

[0010] (2) Two communication systems are arranged in the DC energy meter of this solution. By connecting an external network cable through the network cable interface, the data of the energy meter can be uploaded to the cloud. At the same time, a cellular network interface is arranged at the outer end of the lower housing. By using the Internet of Things through the cellular network interface, it is possible to upload data to the cloud without devices such as gateways, thus reducing the occupied space and achieving lightweight.

[0011] In some embodiments, a display screen is arranged at the top end of the upper housing, a plurality of buttons are installed at the top end of the upper housing, and a plurality of indicator lights are installed at the top end of the upper housing.

[0012] In some embodiments, the installation component includes an outer housing, two installation slots are arranged inside the outer housing, clamping slots are opened on both sides of the outer housing, and clamping blocks are fixedly connected to both sides of the outer housing. The clamping slots are adapted to the clamping blocks.

[0013] In some embodiments, the wiring component further includes a connecting seat and a bolt. The connecting seat is installed in the installation slot. A threaded hole adapted to the bolt is opened at the outer end of the connecting seat. Installation holes adapted to the bolt are opened at the outer end of the fixing piece and the outer housing. The bolt sequentially penetrates through the two installation holes, and the bolt is threadedly connected to the connecting seat.

[0014] In some embodiments, a wire passing hole is opened at the outer end of the connecting seat. The abutting block is located inside the wire passing hole, and an abutting groove is opened at the outer end of the abutting block.

[0015] In some embodiments, a conductive rod is fixedly connected to the outer end of the connecting seat, a plurality of connecting holes are formed in the outer end of the upper housing, the connecting holes are adapted to the conductive rod, and the conductive rod penetrates through the connecting holes.

[0016] In some embodiments, the fixing piece, the connecting piece, the elastic piece and the abutting block are integrally formed, and the fixing piece, the connecting piece, the elastic piece, the abutting block, the connecting seat and the conductive rod are all made of metal copper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall front structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall back structure of the utility model;

[0020] Figure 3 It is an exploded structure diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the installation component structure of the utility model;

[0022] Figure 5 It is a sectional structure diagram of the installation component of the utility model;

[0023] Figure 6 It is an exploded structure diagram of the wiring component of the utility model.

[0024] Explanation of the reference numerals in the drawings:

[0025] 1. Upper housing;

[0026] 2. Lower housing;

[0027] 3. Button;

[0028] 4. Cellular network interface;

[0029] 5. Indicator light;

[0030] 6. Display screen;

[0031] 7. Network cable interface;

[0032] 8. Installation component; 81. Outer housing; 82. Card slot; 83. Card block;

[0033] 9. Wiring assembly; 91. Connecting seat; 92. Bolt; 93. Conductive rod; 94. Fixed piece; 95. Connecting piece; 96. Elastic piece; 97. Contact block; 98. Threading hole;

[0034] 10. Connecting hole. Detailed implementation manners

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer and more understandable, the following further details this application in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and do not limit this application. The terms "including" and "having" and any variations thereof in the description and claims of this application and the above accompanying drawings are intended to cover non-exclusive inclusion.

[0037] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0040] In this application, "and / or" is merely a correlative relationship describing associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, both A and B exist simultaneously, and B exists alone. Additionally, in this text, the character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0041] It should be noted that in this application, words such as "in some embodiments", "exemplarily", and "for example" are used to give examples, illustrations, or explanations. Any embodiment or design solution described as "in some embodiments", "exemplarily", or "for example" in this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Precisely, the use of words such as "in some embodiments", "exemplarily", and "for example" is intended to present relevant concepts in a specific manner, meaning that the specific features, structures, or characteristics described in conjunction with the embodiments can be included in at least one embodiment of this application. The appearance of the above words at various positions in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0042] Since there are many metal components inside the DC electricity meter, its weight is usually relatively heavy. When installing the DC electricity meter, it needs to be installed in the electrical box first, and then the wires are connected to the DC electricity meter in sequence. However, when wiring, the staff needs to operate inside the electrical box. Since the space inside the electrical box is relatively narrow and there are many other components inside the electrical box, it is not convenient to operate during wiring, which reduces the installation efficiency.

[0043] Based on this, it is possible to improve the problem in the related art that when operating inside the electrical box to connect the wires to the electricity meter, due to the relatively narrow space inside the electrical box, it is not convenient to operate during wiring, resulting in a reduction in installation efficiency.

[0044] Please refer to Figures 1-6 , a static DC electricity meter with an independent uplink communication function, including an upper housing 1 and a lower housing 2. The bottom end of the upper housing 1 is fixedly connected to the lower housing 2, and the inside of the upper housing 1 and the lower housing 2 is interconnected. A plurality of mounting components 8 are provided at the outer end of the upper housing 1, and two wiring components 9 are provided inside the mounting components 8. A network cable interface 7 is provided at the outer end of the upper housing 1, and a cellular network interface 4 is provided at the outer end of the lower housing 2. The wiring component 9 includes a connecting piece 95. One end of the connecting piece 95 is fixedly connected to a fixing piece 94, and the end of the connecting piece 95 away from the fixing piece 94 is fixedly connected to a spring piece 96. One end of the spring piece 96 is fixedly connected to an abutting block 97.

[0045] A display screen 6 is provided at the top end of the upper housing 1. A plurality of buttons 3 are installed at the top end of the upper housing 1, and a plurality of indicator lights 5 are installed at the top end of the upper housing 1.

[0046] In this solution, the upper housing 1 and the lower housing 2 are the main body of a DC electricity meter. Inside the upper housing 1 and the lower housing 2, there are mainly a current sensor for measuring the current passing through the electricity meter, which can be a Hall effect sensor or a resistance measurer, a voltage sensor for measuring the voltage of the power supply system, a processor and a control circuit. The control circuit performs calculation and measurement functions and displays the results on the display screen 6. Finally, a data storage module and a communication module need to be provided. A cellular network interface 4 is provided at the outer end of the lower housing 2. Through the cellular network interface 4, it can be directly connected to the 4G network, and the data can be uploaded to the cloud. Traditional DC electricity meters need to use gateways or switches for network transmission. In this solution, the cellular network interface 4, in cooperation with the communication module, can transmit the data to the cloud, thus eliminating the need for devices such as gateways, reducing the occupied space and achieving lightweight. A network cable interface 7 is also provided at the outer end of the upper housing 1. The network cable interface 7 is mainly used to externally connect a network cable. When the cellular signal is not ideal in remote areas, the network cable interface 7 can be used to externally connect a network cable to upload the data of the electricity meter to the cloud, so as to cope with different network conditions.

[0047] A display screen 6, buttons 3 and indicator lights 5 are respectively provided at the top end of the upper housing 1. The buttons 3 are used to adjust the system settings, while the indicator lights 5 are used to display switch and pulse signals. A plurality of connection holes 10 are also provided at the outer end of the upper housing 1. The wiring component 9 installed in the installation component 8 can be inserted into the connection holes 10 through the conductive rod 93. When wiring, the wiring component 9 can be removed first, and after connecting the wire to the wiring component 9, it can be inserted back through the conductive rod 93, so that the staff does not need to wire in a narrow distribution box, which can improve the installation efficiency of the DC electricity meter.

[0048] Optionally, in some embodiments, please refer to Figure 4 and Figure 5 , the installation component 8 includes an outer housing 81. Two installation slots are provided inside the outer housing 81. Card slots 82 are provided on both sides of the outer housing 81, and clamping blocks 83 are fixedly connected to both sides of the outer housing 81. The card slots 82 are adapted to the clamping blocks 83.

[0049] The outer casing 81 mentioned above is mainly used to install the wiring component 9. Each outer casing 81 can install two wiring components 9. The outer casing 81 is made of insulating plastic material, such as polypropylene or polytetrafluoroethylene. Card slots 82 are provided on both sides of the outer casing 81, and card blocks 83 are fixed. The card blocks 83 and the card slots 82 are matched with each other and can be snap-connected together. The card slots 82 and card blocks 83 distributed on both sides are staggered, so that two outer casings 81 can be snap-connected together, and thus the corresponding quantity can be connected according to requirements to meet different needs.

[0050] Optionally, in some embodiments, please refer to Figures 3-6 , the wiring component 9 further includes a connection seat 91 and a bolt 92. The connection seat 91 is installed in the installation groove. A threaded hole adapted to the bolt 92 is provided at the outer end of the connection seat 91. Mounting holes adapted to the bolt 92 are provided at both the fixing piece 94 and the outer end of the outer casing 81. The bolt 92 sequentially passes through the two mounting holes, and the bolt 92 is threadedly connected to the connection seat 91.

[0051] A wire passing hole 98 is provided at the outer end of the connection seat 91. The abutting block 97 is located inside the wire passing hole 98, and an abutting groove is provided at the outer end of the abutting block 97.

[0052] A conductive rod 93 is fixedly connected to the outer end of the connection seat 91. A plurality of connection holes 10 are provided at the outer end of the upper casing 1. The connection holes 10 are adapted to the conductive rod 93, and the conductive rod 93 passes through the connection holes 10.

[0053] The fixing piece 94, the connecting piece 95, the elastic piece 96 and the abutting block 97 are integrally formed, and the fixing piece 94, the connecting piece 95, the elastic piece 96, the abutting block 97, the connection seat 91 and the conductive rod 93 are all made of metal copper.

[0054] In this solution, the wiring component 9 is installed in the installation groove inside the outer casing 81. Among them, the connection seat 91 is fixedly installed inside the outer casing 81. A bolt 92 is threadedly connected to the top end of the connection seat 91. When the bolt 92 is threadedly connected to the connection seat 91, it will pass through the through hole on the fixing piece 94. A conductive rod 93 is fixed to the bottom end of the connection seat 91. The conductive rod 93 mainly fixes the wiring component 9 by inserting into the connection hole 10 and connects the external wire to the device inside the upper casing 1. A wire passing hole 98 is provided inside the connection seat 91, and the wire passing hole 98 runs through the inside of the connection seat 91 as a whole, so that the connecting piece 95, the elastic piece 96 and the abutting block 97 can be located inside the wire passing hole 98. An abutting groove is provided at the bottom end of the abutting block 97 for clamping the wire. At the same time, the fixing piece 94, the connecting piece 95, the elastic piece 96, the abutting block 97, the connection seat 91 and the conductive rod 93 are all made of metal copper, making it have good electrical conductivity.

[0055] When wiring, first remove the installation component 8 and the wiring component 9, so that the staff does not need to wire inside the narrow distribution box, which can improve the efficiency of installing the DC electricity meter. Then insert the stripped wire into the wire threading hole 98 so that the wire is located below the abutting block 97. Then, the bolt 92 can be turned, and the bolt 92 will squeeze the elastic piece 96 and the abutting block 97 downward, so that the abutting groove on the abutting block 97 presses the wire, thus completing the wiring and improving the efficiency of its wiring work.

[0056] Working principle: The DC electricity meter in this solution mainly transmits data to the cloud in two ways. By cooperating with the internal communication module through the cellular network interface 4, data can be uploaded to the cloud without devices such as gateways. The network cable interface 7 provided at the outer end of the upper housing 1 is mainly used to externally connect a network cable to achieve data transmission. When installing the device, first remove the installation component 8 and the wiring component 9 from the upper housing 1, then insert the stripped wire into the wire threading hole 98, and turning the bolt 92 will squeeze the elastic piece 96 and the abutting block 97 downward, so that the abutting groove on the abutting block 97 presses the wire, thus completing the wiring.

[0057] The above is only the preferred specific implementation manner of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improvement concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A static DC electric energy meter with independent uplink communication function, comprising an upper housing (1) and a lower housing (2), characterized in that: The bottom end of the upper shell (1) is fixedly connected to the lower shell (2); the upper shell (1) and the lower shell (2) are internally connected; a plurality of mounting components (8) are arranged at the outer end of the upper shell (1); two wiring components (9) are arranged inside the mounting components (8); a network cable interface (7) is arranged at the outer end of the upper shell (1); and a cellular network interface (4) is arranged at the outer end of the lower shell (2); The wiring assembly (9) comprises a connecting piece (95), one end of the connecting piece (95) is fixedly connected to a fixing piece (94), one end of the connecting piece (95) away from the fixing piece (94) is fixedly connected to a spring piece (96), and one end of the spring piece (96) is fixedly connected to an abutment block (97).

2. The static DC electric energy meter with independent uplink communication function according to claim 1, characterized in that: A display screen (6) is provided at the top of the upper shell (1), a plurality of buttons (3) are installed at the top of the upper shell (1), and a plurality of indicator lights (5) are installed at the top of the upper shell (1).

3. The static DC electric energy meter with independent uplink communication function according to claim 1, characterized in that: The mounting assembly (8) comprises an outer shell (81), two mounting grooves are arranged inside the outer shell (81), both sides of the outer shell (81) are provided with card slots (82), and both sides of the outer shell (81) are fixedly connected with card blocks (83), and the card slots (82) are adapted to the card blocks (83).

4. The static DC electric energy meter with independent uplink communication function according to claim 3 is characterized in that: The wiring assembly (9) further comprises a connecting seat (91) and a bolt (92); the connecting seat (91) is installed in the installation groove; a threaded hole matching the bolt (92) is provided at the outer end of the connecting seat (91); mounting holes matching the bolt (92) are provided at the outer ends of the fixing plate (94) and the outer shell (81); the bolt (92) passes through the two mounting holes in sequence, and the bolt (92) is threadedly connected to the connecting seat (91).

5. The static DC electric energy meter with independent uplink communication function according to claim 4, characterized in that: The outer end of the connecting seat (91) is provided with a threading hole (98), the abutment block (97) is located inside the threading hole (98), and the outer end of the abutment block (97) is provided with an abutment groove.

6. The static DC electric energy meter with independent uplink communication function according to claim 5, characterized in that: The outer end of the connection seat (91) is fixedly connected to a conductive rod (93), and the outer end of the upper shell (1) is provided with a plurality of connection holes (10), the connection holes (10) are adapted to the conductive rods (93), and the conductive rods (93) pass through the connection holes (10).

7. The static DC electric energy meter with independent uplink communication function according to claim 6, characterized in that: The fixing plate (94), the connecting plate (95), the spring sheet (96) and the abutment block (97) are integrally formed, and the fixing plate (94), the connecting plate (95), the spring sheet (96), the abutment block (97), the connecting seat (91) and the conductive rod (93) are all made of metal copper.

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