Combined ammeter structure

Abstract

A combined electric meter structure comprises an electric meter body and a module assembly installed on the side face of the electric meter body, and the module assembly is composed of a plurality of module units connected in sequence. Circuit boards used for realizing different functions are installed in the module units, two sides of each circuit board are provided with a male plugging port and a female plugging port which are communicated with the circuit board, and the side surface of the ammeter main body is provided with a matching female port corresponding to the male plugging port; a positioning notch is formed in the surface of the ammeter main body, and a positioning bulge mounted in the positioning notch and a matching notch matched with the adjacent module unit are formed on the module unit; compared with the prior art, by arranging the module assembly installed on the side face of the electric meter body, different numbers of module units with different functions can be selected according to needed functions, and the module units are electrically connected with the electric meter body through the plug-in male port and the plug-in female port which are connected in sequence, so that the functions of the electric meter body are customized in a personalized mode.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated terminals, and particularly relates to a combined electric meter structure. Background Art

[0002] An electric meter is an instrument used to measure electric energy, also known as a watt-hour meter, a kilowatt-hour meter, or a meter for measuring various electrical quantities.

[0003] Among them, a smart electric meter is one of the basic devices for data acquisition in a smart grid, undertaking the tasks of original electric energy data acquisition, metering, and transmission, and is the basis for realizing information integration, analysis optimization, and information display. In addition to the basic metering function of measuring the basic electricity consumption of a traditional electric meter, it also has intelligent functions such as two-way multi-rate metering, user-side control, two-way data communication in multiple data transmission modes, and anti-stealing of electricity.

[0004] In existing electric meters, usually according to the environment where the electric meter is located, a metering module for calculating the electric energy consumption, a display module for displaying various data of the electric meter, a storage module for storing various parameters of the electric meter, and a power supply module for supplying power to each module are set inside the electric meter. Also, a communication module for receiving communication signals, a control module for controlling the electric meter, a security module for verifying identity, a monitoring module for environmental detection, a smart module for linking smart homes, an analysis module for detecting the power grid quality, etc. can be set according to actual needs.

[0005] When it is necessary to customize a personalized electric meter for a customer, usually the internal structure of the overall electric meter needs to be rearranged, which increases the working intensity of the manufacturer and also raises the customization cost of the customer.

[0006] Chinese Patent Publication No. CN204613267U discloses a fastener for an electric meter expansion module, an electric meter expansion module, and an electric meter. The electric meter expansion module includes a housing having a first surface and a second surface opposite to the first surface. A positioning protrusion is provided on the first surface, and positioning holes corresponding in position and number to the positioning protrusion are provided on the second surface. The housing also has a hole penetrating the first surface and the second surface for inserting the fastener. The fastener has an external thread at the tail, a slotted crosshead at the head, a threaded hole at the center of the head, and a protruding stepped structure is provided at a position between the head and the tail.

[0007] When installing multiple expansion modules on the above-mentioned disclosed electricity meter, fasteners need to be installed between adjacent expansion modules to achieve sequential connection between the electricity meter and multiple expansion modules. However, since there are sequentially connected fasteners in the expansion module, the connected fasteners are tightened through threads. However, since the fasteners pass through the circuit board of the expansion module, during the installation process of adjacent expansion modules, the tightening state of the fasteners is in the blind spot of vision, which is likely to cause damage to the circuit board due to the too-close fasteners, thus affecting the use of the expansion module, or the expansion module falling off due to the too-loose fasteners. Summary of the Invention

[0008] The present invention aims to overcome the above-mentioned defects in the prior art and provides a combined electricity meter structure with reliable structure and customizable required module combinations.

[0009] To achieve the above-mentioned invention purpose, the present invention adopts the following technical solutions: A combined electricity meter structure includes an electricity meter main body and a module assembly installed on the side of the electricity meter main body. The module assembly is composed of several sequentially connected module units; it is characterized in that a circuit board for realizing different functions is installed in the module unit, and a plug-in male port and a plug-in female port that can be cooperatively inserted are respectively arranged on both sides of the circuit board, and a mating female port that cooperates with the plug-in male port is arranged on the side of the electricity meter main body; positioning protrusions and mating notches that can be cooperatively clamped are respectively formed on both sides of the module unit, and a positioning notch that cooperates with the positioning protrusion is formed on the surface of the electricity meter main body; an installation guide rail that simultaneously connects the module assembly and the electricity meter main body is installed on the back of the electricity meter main body, and hanging parts for locking the installation guide rail are arranged on both the module unit and the electricity meter main body.

[0010] As a preferred solution of the present invention, the module unit includes a module main body and a module cover detachably connected to the side of the module main body. The circuit board is installed in the module main body, and a pin header port corresponding to the plug-in male port is formed on the module cover.

[0011] As a preferred solution of the present invention, the plug-in male port includes pin headers and a connector socket sleeved on the pin headers, and the pin headers pass through the pin header port.

[0012] As a preferred solution of the present invention, guide posts for positioning the circuit board are arranged in the module main body, and guide ribs for guiding the installation direction of the circuit board are formed on the side of the circuit board.

[0013] As a preferred solution of the present invention, a connecting screw connected to the electricity meter main body is installed at the positioning protrusion, and the positioning protrusion is a double-layer structure for preventing the connecting screw from falling off.

[0014] As a preferred solution of the present invention, a wire passing groove is formed on the surface of the module unit, and a guiding slope for facilitating wire head grasping is arranged in the wire passing groove.

[0015] As a preferred embodiment of the present invention, an end cover and a screen cover for protecting the internal electronic components of the electricity meter body are provided on the surface of the electricity meter body. A communication network port is provided inside the electricity meter body. A silica gel part for dust prevention of the communication network port is installed on the end cover. An anti-detachment structure inserted into the end cover is formed at the end of the silica gel part. A battery mounting seat is provided inside the electricity meter body, and a buckle rib for preventing the battery from falling off is provided inside the electricity meter body.

[0016] As a preferred embodiment of the present invention, locking screws for connecting with the electricity meter body are provided at the corners of the end cover and the screen cover, and an ultrasonic signal trigger for preventing electricity theft is provided inside the electricity meter body.

[0017] As a preferred embodiment of the present invention, a number of fastening screws for locking each electronic component are installed inside the electricity meter body. An anti-detachment cover plate corresponding to the fastening screws is installed inside the electricity meter body. A terminal block for supporting the anti-detachment cover plate is also provided inside the electricity meter body, and an observation hole for observing the connection condition of each fastening screw is formed on the terminal block.

[0018] As a preferred embodiment of the present invention, clamping edges extending outward are formed on both sides of the installation rail. Fixed clamping frames for pressing one side of the clamping edge are provided on the module unit and the electricity meter body. An installation frame is provided on the module unit and the electricity meter body at the other side of the clamping edge, and a hanging part for pressing the other side of the clamping edge is installed inside the installation frame.

[0019] Compared with the prior art, by providing a module assembly installed on the side of the electricity meter body, different numbers and different functions of module units can be selected according to the required functions, and the module units are electrically connected to the electricity meter body through the sequentially connected male plug and female socket, so as to customize the functions of the electricity meter body. At the same time, by respectively providing a mating female socket, a positioning notch and an installation rail connected to the module assembly on three different sides of the electricity meter body, a stable connection between the module unit and the electricity meter body is realized. Description of the Drawings

[0020] Figure 1 is the structural schematic diagram of the present invention; Figure 2 is the assembly schematic diagram of the installation rail; Figure 3 is Figure 2 the partial enlarged view at A in Figure 4 is the structural schematic diagram of the module unit; Figure 5 is Figure 4 the partial enlarged view at B in Figure 6 is the installation schematic diagram of the module cover; Figure 7 is Figure 6Partial enlarged view at position C; Figure 8 It is a schematic diagram of the installation of the circuit board; Figure 9 It is a schematic structural diagram of the circuit board; Figure 10 It is a schematic structural diagram of the main body of the electricity meter; Figure 11 It is a schematic diagram of the internal structure of the main body of the electricity meter; Figure 12 It is Figure 11 Partial enlarged view at position D; Figure 13 It is a schematic structural diagram of the silica gel part; Reference numerals: main body of the electricity meter 1, positioning notch 11, screen cover 12, end cover 13, locking screw 14, ultrasonic signal trigger 15, battery mounting seat 16, snap rib 161, communication network port 17, terminal block 18, observation hole 181, anti - detachment cover plate 19, fastening screw 191, module assembly 2, module unit 21, positioning protrusion 22, mating notch 23, module main body 24, module cover 25, guide post 26, connecting screw 27, double - layer structure 28, pin header port 29, mounting rail 3, clamping edge 31, fixed clamping frame 32, mounting frame 33, hanging part 34, circuit board 4, pin header 41, female socket 42, connector 43, guide rib 44, male socket 45, silica gel part 5, anti - detachment structure 51, mating female socket 6, wire trough 7, guide ramp 71. Detailed implementation manners

[0021] The following will make a detailed description of the embodiments of the present invention with reference to the accompanying drawings.

[0022] As Figures 1 - 13 shown, a combined electricity meter structure includes a main body of the electricity meter 1 and a module assembly 2 installed on the side of the main body of the electricity meter 1. The module assembly 2 is composed of several sequentially connected module units 21. A circuit board 4 for realizing different functions is installed in the module unit 21. Both sides of the circuit board 4 are provided with a male socket 45 and a female socket 42 that are both connected to the circuit board 4. A mating female socket 6 corresponding to the male socket 45 is provided on the side of the main body of the electricity meter 1. A positioning notch 11 is formed on the surface of the main body of the electricity meter 1. A positioning protrusion 22 installed in the positioning notch 11 and a mating notch 23 adapted to the adjacent module unit 21 are formed on the module unit 21. A mounting rail 3 that connects both the module assembly 2 and the main body of the electricity meter 1 is installed on the back of the main body of the electricity meter 1. And hanging parts 34 for locking the mounting rail 3 are provided on both the module unit 21 and the main body of the electricity meter 1.

[0023] The module units 21 are connected through the mating male plug 45 and female socket 42 that can be plugged together. Specifically, the female socket 42 of the module unit 21 is plugged into the male plug 45 of the adjacent module unit 21, so that the sequential connection between multiple module units 21 can be realized.

[0024] The module unit 21 connected to the meter main body 1 is connected to the mating female socket 6 of the meter main body 1 through the male plug 45 of the module unit 21, realizing the connection between the circuit board in the module unit 21 and the circuit board in the meter main body 1.

[0025] After multiple module units 21 and the meter main body 1 are assembled, the function execution and signal acquisition need to be controlled by the meter main body 1.

[0026] The mating female socket, positioning notch 11 and mounting rail 3 are respectively located on three different sides of the meter main body 1 The mounting rail 3 is installed on the back of the meter main body 1 and the module unit 21. The mating female socket 6 is formed on the side of the meter main body 1. And the mating female socket 6 is plugged into the male plug 45 of the module unit 21, realizing the butt joint and plugging between the side of the meter main body 1 and the module unit 21 at the same time. The positioning notch 11 is formed at the connection of the front of the meter main body 1 and the side where the mating female socket 6 is located.

[0027] The number and functions of the module units 21 in the module assembly 2 are configured according to the needs of the actual meter main body 1. The multiple module units 21 in the module assembly 2 are connected through the mating female sockets 42 and male plugs 45. At the same time, the male plug 45 closest to the meter main body 1 is connected to the mating female socket 6 of the meter main body 1, so as to realize the electrical connection between the meter main body 1 and all required module units 21, meeting the requirement of loading different functions and different numbers of module assemblies 2 on the meter main body 1 according to needs.

[0028] And through the mating female socket, positioning notch 11 and mounting rail 3 located on three different sides of the meter main body 1, the connection between the meter main body 1 and the module assembly 2 is realized under the action of multiple surfaces, ensuring the connection stability between the meter main body 1 and the module assembly 2.

[0029] Specifically, the front of the meter main body 1 and the module assembly 2 are connected through the positioning protrusion 22 and the positioning notch 11. The side of the meter main body 1 and the module assembly 2 are connected through the male plug 45 and the mating female socket 6. The back of the meter main body 1 and the module assembly 2 are connected through the mounting rail 3.

[0030] The module unit 21 includes a module main body 24 and a module cover 25 detachably connected to the side of the module main body 24. The circuit board 4 is installed in the module main body 24. The module cover 25 is formed with a pin header port 29 corresponding to the male plug 45.

[0031] The module cover 25 is detachably connected to the side of the module body 24 by bolts. Under the opening and closing action of the module cover 25, it is convenient for the circuit board 4 to be installed in the module body 24. The pin header port 29 is correspondingly arranged in cooperation with the female port 6, which is used to limit and support the plug-in male port 45 to meet the connection requirement between the plug-in male port 45 and the mating female port 6.

[0032] The plug-in male port 45 includes pin headers 41 and a connector 43 sleeved on the pin headers 41. The pin headers 41 pass through the pin header port 29. The welding surfaces of all the pin headers 41 and other electronic components are arranged on the same side of the circuit board 4, and only the plug-in female port 42 is arranged on the other side of the circuit board 4, which can achieve double-sided wave soldering and improve production efficiency.

[0033] The connector 43 is of an integral structure and is used to sleeve on the pin headers 41, so as to connect all the pin headers 41 to form an integral structure under the action of the connector 43.

[0034] The module body 24 is provided with guide posts 26 for positioning the circuit board 4, and guide ribs 44 for guiding the installation direction of the circuit board 4 are formed on the side of the circuit board 4.

[0035] The guide posts 26 and the module body 24 are of an integral structure. The circuit board 4 is formed with mating holes or mating grooves corresponding to the positions of the guide posts 26. Under the action of multiple guide posts 26, the installation direction of the circuit board 4 is guided and the installed circuit board 4 is limited. The guide ribs 44 also limit the installation position of the circuit board 4, and at the same time, the guide ribs 44 play a role in reducing gaps and preventing dust.

[0036] A connecting screw 27 connected to the electricity meter body 1 is installed at the positioning protrusion 22, and the positioning protrusion 22 is a double-layer structure 28 for preventing the connecting screw 27 from falling off.

[0037] Under the action of the connecting screw 27, the detachable connection between the module unit 21 and the electricity meter body 1 is realized. Under the action of the double-layer structure 28, when the connecting screw 27 is tightened, two parts with different lengths of the connecting screw 27 are simultaneously supported, so that when the operator retreats the connecting screw 27 on site, the connecting screw 27 will not completely come out, nor will the module be stuck due to the connecting screw 27 being lower than the second anti-loosening ring.

[0038] The double-layer structure 28 is a hollow box-type structure. Through holes corresponding to the diameter size of the connecting screw 27 are formed at both the top and bottom of the double-layer structure 28. On the basis that the connecting screw 27 can pass through the double-layer structure 28, the top and bottom of the double-layer structure 28 support the connecting screw 27 at two different positions. When the connecting screw 27 is loosened by backing it off, it is only necessary to back off the connecting screw 27 to the bottom of the double-layer structure 28 to disconnect the connection between the connecting screw 27 and the electricity meter main body 1. At this time, the bottom of the connecting screw 27 is supported by the bottom of the double-layer structure 28, and the middle of the connecting screw 27 is supported by the top of the double-layer structure 28. This not only prevents the connecting screw 27 from falling off the double-layer structure 28 but also realizes the guiding and limiting of the tightening direction of the connecting screw 27.

[0039] A wire threading groove 7 is formed on the surface of the module unit 21. A guiding slope 71 for facilitating the grasping of the wire end is provided in the wire threading groove 7. The connecting screw 27 can be provided with a lead seal threading. The guiding slope 71 can play a guiding role in the lead seal threading. After the operator threads the wire through the connecting screw 27 on-site, the guiding slope 71 can make it easier to pick up the wire end of the lead seal threading.

[0040] An end cover 13 and a screen cover 12 for protecting the internal electronic components of the electricity meter main body 1 are provided on the surface of the electricity meter main body 1. A communication network port 17 is provided inside the electricity meter main body 1. A silica gel part 5 for dust-proofing the communication network port 17 is installed on the end cover 13. An anti-detachment structure 51 inserted into the end cover 13 is formed at the end of the silica gel part 5. A battery mounting seat 16 is provided inside the electricity meter main body 1, and a buckle rib 161 for preventing the battery from falling off is provided inside the electricity meter main body 1.

[0041] The silica gel part 5 is used to dust-proof and waterproof the communication network port 17 during the standby process of the communication network port 17 and is anti-detached under the action of the anti-detachment structure 51, facilitating the silica gel part 5 not to fall off during on-site use.

[0042] The battery mounting seat 16 plays a guiding role in the insertion of the battery, and the buckle rib 161 is designed to prevent the battery from falling off. After the end cover 13 is removed on-site, the battery will not fall off automatically.

[0043] Locking screws 14 for connecting with the electricity meter main body 1 are provided at the corners of the end cover 13 and the screen cover 12, and an ultrasonic signal trigger 15 for preventing electricity theft is provided inside the electricity meter main body 1.

[0044] Both the locking screws 14 and the ultrasonic signal trigger 15 are used for the anti-electricity-theft function of the electricity meter main body 1. The ultrasonic signal trigger 15 is triggered when the screen cover 12 is opened, which is suitable for markets with high requirements for preventing electricity theft.

[0045] Inside the electricity meter main body 1, several fastening screws 191 for locking various electronic components are installed. An anti-dropping cover plate 19 corresponding to the fastening screws 191 is installed inside the electricity meter main body 1. A terminal block 18 for supporting the anti-dropping cover plate 19 is also provided inside the electricity meter main body 1. An observation hole 181 for observing the connection condition of each fastening screw 191 is formed on the terminal block 18.

[0046] The fastening screws 191 are used to press various feet inside the electricity meter main body 1. The anti-dropping cover plate 19 is arranged in an overhead manner above the fastening screws 191, and mating holes corresponding to the respective fastening screws 191 are formed on the anti-dropping cover plate 19, effectively avoiding the problem that the fastening screws 191 drop during the process of the operator loosening the fastening screws 191. The anti-dropping cover plate 19 can be installed inside the electricity meter main body 1 together with the terminal block 18.

[0047] On both sides of the installation guide rail 3, outwardly extending clamping edges 31 are formed. Fixed clamping brackets 32 for pressing one side of the clamping edge 31 are provided on the module unit 21 and the electricity meter main body 1. An installation bracket 33 located on the other side of the clamping edge 31 is provided on the module unit 21 and the electricity meter main body 1. A hanging part 34 for pressing the other side of the clamping edge 31 is installed inside the installation bracket 33.

[0048] The installation guide rail 3 is used to install the module unit 21 and the electricity meter main body 1 inside an electricity meter box or on a wall. Under the action of the installation guide rail 3, the module unit 21 and the electricity meter main body 1 are installed along the length direction of the installation guide rail 3. At the same time, under the supporting action of the installation guide rail 3, the stable installation of the module unit 21 and the electricity meter main body 1 is ensured.

[0049] The fixed clamping bracket 32 is located above the installation guide rail 3. Through the fixed clamping bracket 32, the module unit 21 and the electricity meter main body 1 can be hung on the installation guide rail 3. After the hanging of the module unit 21 and the electricity meter main body 1 is completed, the clamping edge 31 below the installation guide rail 3 is clamped by the hanging part 34, thereby realizing the installation of the module unit 21 and the electricity meter main body 1 on the installation guide rail 3.

[0050] The installation bracket 33 is used to realize the clamping of the hanging part 34, thereby ensuring that the hanging part 34 always presses the clamping edge 31 of the installation guide rail 3.

[0051] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0052] Although the following terms are used more frequently in this text: electricity meter body 1, positioning notch 11, screen cover 12, end cover 13, locking screw 14, ultrasonic signal trigger 15, battery mounting base 16, snap rib 161, communication network port 17, terminal block 18, observation hole 181, anti-disengagement cover plate 19, fastening screw 191, module assembly 2, module unit 21, positioning protrusion 22, mating notch 23, module body 24, module cover 25, guide post 26, connecting screw 27, double-layer structure 28, pin header port 29, mounting rail 3, clamping edge 31, fixed clamping bracket 32, mounting bracket 33, hanging part 34, circuit board 4, pin header 41, female socket 42, connector 43, guide rib 44, male plug 45, silicone part 5, anti-disengagement structure 51, mating female socket 6, wire trough 7, guiding slope 71, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A combined electricity meter structure, comprising an electricity meter main body (1) and a module assembly (2) installed on the side of the electricity meter main body (1), the module assembly (2) being composed of a number of sequentially connected module units (21); characterized in that, A circuit board (4) for implementing different functions is installed inside the module unit (21). A male insertion port (45) and a female insertion port (42) that can be cooperatively inserted are respectively arranged on both sides of the circuit board (4), and a mating female port (6) that is cooperatively inserted with the male insertion port (45) is arranged on the side of the electricity meter main body (1); positioning protrusions (22) and mating notches (23) that can be cooperatively snapped are respectively formed on both sides of the module unit (21), and a positioning notch (11) that is cooperatively snapped with the positioning protrusion (22) is formed on the surface of the electricity meter main body (1); an installation rail (3) that is simultaneously connected to the module assembly (2) and the electricity meter main body (1) is installed on the back of the electricity meter main body (1), and hanging parts (34) for locking the installation rail (3) are arranged on both the module unit (21) and the electricity meter main body (1).

2. The combined electric meter structure according to claim 1, wherein The module unit (21) includes a module main body (24) and a module cover (25) detachably connected to the side of the module main body (24). The circuit board (4) is installed inside the module main body (24), and a pin header port (29) corresponding to the male insertion port (45) is formed on the module cover (25).

3. The combined electric meter structure according to claim 2, characterized in that, The male insertion port (45) includes pin headers (41) and a connector (43) sleeved on the pin headers (41), and the pin headers (41) are arranged through the pin header port (29).

4. A combined electricity meter structure according to claim 2, characterized in that, Guide posts (26) for positioning the circuit board (4) are arranged inside the module main body (24), and guide ribs (44) for guiding the installation direction of the circuit board (4) are formed on the side of the circuit board (4).

5. A combined electric meter structure according to claim 1, characterized in that, A connecting screw (27) connected to the electricity meter main body (1) is installed at the positioning protrusion (22), and the positioning protrusion (22) is a double-layer structure (28) for preventing the connecting screw (27) from falling off.

6. The combined electric meter structure according to claim 1, characterized in that A wire passing groove (7) is formed on the surface of the module unit (21), and a guiding slope (71) for facilitating wire end grasping is arranged inside the wire passing groove (7).

7. A combined electric meter structure according to claim 1, characterized in that, An end cover (13) and a screen cover (12) for protecting the internal electronic components of the electricity meter main body (1) are arranged on the surface of the electricity meter main body (1). A communication network port (17) is arranged inside the electricity meter main body (1). A silica gel part (5) for dust prevention of the communication network port (17) is installed on the end cover (13). An anti-detachment structure (51) inserted on the end cover (13) is formed at the end of the silica gel part (5). A battery installation seat (16) is arranged inside the electricity meter main body (1), and a buckle rib (161) for preventing the battery from falling off is arranged inside the electricity meter main body (1).

8. A combined electricity meter structure according to claim 7, characterized in that, Locking screws (14) for connecting to the electricity meter main body (1) are arranged at the corners of the end cover (13) and the screen cover (12), and an ultrasonic signal trigger part (15) for preventing electricity theft is arranged inside the electricity meter main body (1).

9. A combined electric meter structure according to claim 1, characterized in that, A number of fastening screws (191) for locking each electronic component are installed inside the electricity meter main body (1). An anti-detachment cover plate (19) corresponding to the fastening screws (191) is installed inside the electricity meter main body (1). A terminal block (18) for supporting the anti-detachment cover plate (19) is further arranged inside the electricity meter main body (1), and an observation hole (181) for observing the connection condition of each fastening screw (191) is formed on the terminal block (18).

10. A combined electric meter structure according to claim 1, characterized in that, On both sides of the installation guide rail (3), there are formed clamping edges (31) extending outwards. On the module unit (21) and the electricity meter main body (1), there are fixed clamping frames (32) for pressing one side of the clamping edge (31). On the module unit (21) and the electricity meter main body (1), there is an installation frame (33) located at the other side of the clamping edge (31). Inside the installation frame (33), there is a hanging part (34) for pressing the other side of the clamping edge (31).

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