Dustproof single-phase charge-control intelligent electric energy meter

Abstract

The utility model discloses a dustproof single-phase charge-control intelligent electric energy meter, which comprises a shell and a circuit board positioned in the shell, a display screen is embedded in the front surface of the shell, a battery compartment is arranged on the front surface of the shell, a compartment cover covering the battery compartment is hinged to the front surface of the shell, a fixed plate is fixed on one side of the compartment cover, an insertion rod is rotatably connected to the bottom of the fixed plate, and the insertion rod is inserted into the battery compartment. The surface of the shell is further provided with an inserting groove capable of being connected with the inserting rod in an inserted mode, a clamping groove is formed in the inserting groove, one side of the inserting rod is connected with a clamping block capable of stretching out of or stretching into the inserting rod through a spring, and the side, facing the clamping groove, of the clamping block and the bottom are provided with a side inclined face and a bottom inclined face respectively. The side inclined surface and the bottom inclined surface can be simultaneously positioned inside and outside the insertion rod when the spring is in a non-compressed state; when the bin cover is attached to the shell, the inserting rods can be inserted into the inserting grooves, and the clamping blocks can stretch into the inserting rods and stretch out of the inserting rods to be clamped with the clamping grooves.

Description

Technical Field

[0001] The utility model relates to the field of single-phase fee-controlled intelligent electric meters, in particular to a dustproof single-phase fee-controlled intelligent electric energy meter. Background Art

[0002] With the expansion of the power supply range of low-voltage distribution lines and the increase in household appliances, the intensity of power grid transformation has been increasing year by year in recent years. For ordinary residents, the most direct experience of power grid transformation is that the old-fashioned mechanical electricity meters and ordinary electricity meters are gradually being replaced by single-phase fee-controlled smart electricity meters with LCD display screens.

[0003] The existing single-phase fee-controlled smart electricity meters are equipped with two batteries, one is a clock power supply battery located inside the meter; the other is a LCD screen power supply battery. A battery compartment is provided on the front of the meter, and a flap is provided on the surface of the battery compartment. The screen power supply battery can be replaced by opening the flap. For example, the DDZY188, DDZY217-Z, and DDZY2699-Z single-phase fee-controlled smart electricity meters, the flaps of the screen power supply batteries of these common meters on the market are fixed by screws. This structure is easy to oxidize and is inconvenient to disassemble. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a dustproof single-phase fee-controlled intelligent electric energy meter to solve the problem in the background technology that the fixed structure of the battery compartment flip cover on the front of the existing electric meter is inconvenient to disassemble and assemble and is prone to aging.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: a dustproof single-phase fee-controlled intelligent electricity meter, comprising a shell and a circuit board located inside the shell, a display screen is embedded in the front of the shell, and a battery compartment is provided, a compartment cover covering the battery compartment is hinged on the front of the shell, a fixing plate is fixed to one side of the compartment cover, a plug rod is rotatably connected to the bottom of the fixing plate, a slot that can be plugged into the plug rod is also provided on the surface of the shell, a card slot is provided in the slot, a card block that can extend out or extend into the plug rod is connected to one side of the plug rod through a spring, a side bevel and a bottom bevel are respectively provided on one side and the bottom of the card block facing the card slot, and the side bevel and the bottom bevel can be simultaneously located inside and outside the plug rod when the spring is in a non-compressed state; when the compartment cover is in contact with the shell, the plug rod can be plugged into the slot, and the card block can extend into the plug rod and extend the plug rod to engage with the card slot.

[0006] Preferably, a groove is provided on the front side of the housing and is located on one side of the display screen, the battery compartment is provided below the groove, and the compartment cover is hinged on one side of the groove.

[0007] Preferably, the fixing plate is rotatably connected with a rotating shaft, the insertion rod is coaxially fixed to the bottom end of the rotating shaft, and the top end of the rotating shaft is fixed with a knob located above the fixing plate.

[0008] Preferably, a receiving groove corresponding to the card slot is opened on one side of the insertion rod, one end of the spring is vertically fixed to a side of the receiving groove corresponding to the card slot, and the other end is fixed to the card block.

[0009] Preferably, a wheel display button located on one side of the display screen is also embedded in the front of the shell, the circuit board is provided with a metering module, a storage module, a processing module and a transmission module, the display screen and the wheel display button are electrically connected to the circuit board, one side of the shell is provided with four wiring terminals electrically connected to the circuit board, and the front of the shell is provided with a wire fixing groove located above the four wiring terminals, and the wire fixing groove is threadedly connected with four groups of wire fixing screws that can respectively penetrate into the four wiring terminals.

[0010] Preferably, an L-shaped dust cover is hinged at the wire fixing groove on the front side of the housing, the L-shaped dust cover can cover the outside of the wire fixing groove and the wiring terminals, and four wire threading holes matching the four wiring terminals are also opened at the bottom of the dust cover.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the electric meter of the utility model is provided with a slot next to the battery compartment of the shell, a card slot is provided on one side inside the slot, the surface of the battery compartment is covered with a hinged compartment cover, a rotatable plug rod is provided on one side of the compartment cover, the plug rod is connected with a retractable card block through a spring, and the card block is provided with side inclined surfaces and bottom inclined surfaces on one side and the bottom facing the card slot, respectively. When the spring is in a natural state, the side inclined surfaces and the bottom inclined surfaces can be located inside and outside the plug rod at the same time, so when the plug rod is inserted into the slot, the card block will enter the inside of the plug rod due to the bottom inclined surface, and after the card block corresponds to the card slot, it can be extended and engaged with the card slot to complete the fixation. When disassembling, the plug rod is rotated, and the card block will enter the inside of the plug rod due to the side inclined surface, so the card block can be separated from the card slot, and the plug rod is pulled out to complete the disassembly, thereby realizing one-step disassembly and installation of the compartment cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the front of the utility model after removing the compartment cover and the dust cover;

[0013] Figure 2 It is a side sectional view of the utility model;

[0014] Figure 3 It is a front schematic diagram of the utility model;

[0015] Figure 4 For this utility model Figure 2 A magnified image of point A;

[0016] Among them: 1. Shell; 2. Display screen; 3. Wheel display button; 4. Battery compartment; 5. Groove; 6. Slot; 7. Wire fixing groove; 8. Dust cover; 9. Wiring terminal; 10. Threading hole; 11. Circuit board; 12. Compartment cover; 13. Fixing plate; 14. Knob; 15. Rotating shaft; 16. Insert rod; 17. Card slot; 18. Card block; 19. Accommodating groove; 20. Bottom slope; 21. Side slope; 22. Wire fixing screw; 23. Spring. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0018] Embodiment:

[0019] like Figure 1-4 As shown, the utility model provides a dustproof single-phase fee-controlled intelligent energy meter, including a shell 1 and a circuit board 11 located inside the shell 1, the shell 1 is embedded with a display screen 2 on the front side, and is provided with a battery compartment 4, the shell 1 is hinged with a compartment cover 12 covering the battery compartment 4 on the front side, a fixing plate 13 is fixed to one side of the compartment cover 12, and a plug rod 16 is rotatably connected to the bottom of the fixing plate 13, and a slot 6 that can be plugged with the plug rod 16 is also provided on the surface of the shell 1, and a card slot 17 is provided in the slot 6, and a card block 18 that can extend out or extend into the plug rod 16 is connected to one side of the plug rod 16 through a spring 23, and the card block 18 faces one side of the card slot 17 A side slope 21 and a bottom slope 20 are respectively provided on one side and the bottom of the electric meter, and the side slope 21 and the bottom slope 20 can be located inside and outside the plug rod 16 at the same time when the spring 23 is in a non-compressed state; when the compartment cover 12 is fitted with the housing 1, the plug rod 16 can be plugged into the slot 6, and the card block 18 can be inserted into the plug rod 16 and extended out of the plug rod 16 to be plugged into the card slot 17; except for the components for disassembling the compartment cover such as the plug rod, the slot, the card block, and the card slot, the other structures of the electric meter are common electric meter structures on the market, with a shell disassembly counting function to prevent electricity theft, as well as other necessary structures, and a battery for powering the display screen 2 can be installed in the battery compartment 4, which is not shown and will not be described in detail;

[0020] When closing the compartment cover 12, the insertion rod 16 is inserted into the slot 6. When the insertion rod 16 is inserted into the slot 6, since the bottom inclined surface 20 of the outer bottom of the card block 18 is located inside and outside the receiving groove 19 at the same time, the bottom inclined surface 20 of the card block 18 abuts against the opening of the slot 6, and is pushed into the receiving groove 19 and compresses the spring 23 at the same time, until the receiving groove 19 and the card block 18 correspond to the card slot 17, the spring 23 recovers and pushes the card block 18 out of the receiving groove 19 and engages with the card slot 17, and the fixation is completed; open the compartment cover 12 2, turn the knob 14, the knob 14 drives the plug rod 16 to rotate through the rotating shaft 15, and the block 18 rotates accordingly when the plug rod 16 rotates. Because the side slope 21 of the block 18 is located in the receiving groove 19 and the card slot 17 at the same time, when the block 18 rotates, the side slope 21 of the block 18 will abut against the opening of the card slot 17 and be pushed into the receiving groove 19. At this time, pinch the knob 14 to pull out the plug rod 16; when in use, connect it to the neutral and live wires of a device such as an air switch through the four wiring terminals 9.

[0021] In this embodiment, specifically, a groove 5 located at one side of the display screen 2 is opened on the front side of the housing 1 , the battery compartment 4 is opened below the groove 5 , and the compartment cover 12 is hinged on one side of the groove 5 .

[0022] In this embodiment, specifically, the fixing plate 13 is rotatably connected with a rotating shaft 15 , the insert rod 16 is coaxially fixed to the bottom end of the rotating shaft 15 , and a knob 14 located above the fixing plate 13 is fixed to the top end of the rotating shaft 15 .

[0023] In this embodiment, specifically, a receiving groove 19 corresponding to the card slot 17 is opened on one side of the insertion rod 16 , one end of the spring 23 is vertically fixed to one side of the receiving groove 19 corresponding to the card slot 17 , and the other end is fixed to the block 18 .

[0024] In this embodiment, specifically, the front of the housing 1 is also embedded with a wheel display button 3 located on one side of the display screen 2, the circuit board 11 is provided with a metering module, a storage module, a processing module and a transmission module, the display screen 2 and the wheel display button 3 are electrically connected to the circuit board 11, one side of the housing 1 is provided with four wiring terminals 9 electrically connected to the circuit board 11, the front of the housing 1 is provided with a fixing groove 7 located above the four wiring terminals 9, and the fixing groove 7 is threadedly connected with four groups of fixing screws 22 that can respectively penetrate the four wiring terminals 9;

[0025] The display screen 2 is equipped with a pulse indicator light, a trip light, an alarm light, and an infrared indicator light. When the wheel display button is pressed, the voltage, current and other power consumption conditions can be displayed in turn. The four wiring terminals 9 are the import and export of the neutral wire and the live wire respectively; the metering module digitally processes the sampled voltage and current, converts them into a pulse frequency signal proportional to the active power and sends them to the processing module. The processing module accumulates the pulse signal according to the time period rate to obtain the total power and the power of each rate segment. The data is stored in the storage module. The processing module is also connected to the display screen 2 and the wheel display button 3 to realize their respective functions. The transmission module can transmit data remotely.

[0026] In this embodiment, specifically, an L-shaped dust cover 8 is hinged at the wire fixing groove 7 on the front of the housing 1, and the L-shaped dust cover 8 can cover the outside of the wire fixing groove 7 and the wiring terminal 9, and four threading holes 10 that match the four wiring terminals 9 are also opened at the bottom of the dust cover 8;

[0027] The dust cover 8 can greatly reduce the exposed area of ​​the opening of the connection terminal 9, thus achieving a certain dustproof effect.

[0028] Working principle: When closing the compartment cover 12, the insertion rod 16 is inserted into the slot 6. When the insertion rod 16 is inserted into the slot 6, since the bottom inclined surface 20 of the outer bottom of the card block 18 is located inside and outside the receiving slot 19 at the same time, the bottom inclined surface 20 of the card block 18 abuts against the opening of the slot 6, and is pushed into the receiving slot 19 and compresses the spring 23 at the same time, until the receiving slot 19 and the card block 18 correspond to the card slot 17, the spring 23 recovers and pushes the card block 18 out of the receiving slot 19 and engages with the card slot 17, completing the fixation; open When the compartment cover 12 is opened, the knob 14 is turned, and the knob 14 drives the plug rod 16 to rotate through the rotating shaft 15. When the plug rod 16 rotates, the block 18 rotates accordingly. Because the side inclined surface 21 of the block 18 is located in the receiving groove 19 and the card slot 17 at the same time, when the block 18 rotates, the side inclined surface 21 of the block 18 will abut against the opening of the card slot 17 and be pushed into the receiving groove 19. At this time, pinch the knob 14 to pull out the plug rod 16; when in use, it is connected to the neutral and live wires of a device such as an air switch through four wiring terminals 9.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dustproof single-phase fee-controlled intelligent electric energy meter, comprising a housing (1) and a circuit board (11) located inside the housing (1), characterized in that: The front of the housing (1) is embedded with a display screen (2) and is provided with a battery compartment (4); the front of the housing (1) is hingedly provided with a compartment cover (12) covering the battery compartment (4); a fixing plate (13) is fixed to one side of the compartment cover (12); a plug rod (16) is rotatably connected to the bottom of the fixing plate (13); a slot (6) which can be plugged into the plug rod (16) is also provided on the surface of the housing (1); a card slot (17) is provided in the slot (6); one side of the plug rod (16) is connected to a spring (23) which can be extended or retracted A block (18) is inserted into the insertion rod (16), and a side inclined surface (21) and a bottom inclined surface (20) are respectively provided on one side and the bottom of the block (18) facing the card slot (17), and the side inclined surface (21) and the bottom inclined surface (20) can be simultaneously located inside and outside the insertion rod (16) when the spring (23) is in a non-compressed state; when the compartment cover (12) and the housing (1) are in contact with each other, the insertion rod (16) can be plugged into the slot (6), and the block (18) can be extended into the insertion rod (16) and extended out of the insertion rod (16) to be plugged into the card slot (17).

2. The dustproof single-phase fee-controlled smart energy meter according to claim 1 is characterized in that: The front of the housing (1) is provided with a groove (5) located on one side of the display screen (2); the battery compartment (4) is provided below the groove (5); and the compartment cover (12) is hinged on one side of the groove (5).

3. The dustproof single-phase fee-controlled smart energy meter according to claim 1 is characterized in that: The fixing plate (13) is rotatably connected with a rotating shaft (15), the insert rod (16) is coaxially fixed to the bottom end of the rotating shaft (15), and the top end of the rotating shaft (15) is fixed with a knob (14) located above the fixing plate (13).

4. The dustproof single-phase fee-controlled smart energy meter according to claim 1 is characterized in that: A receiving groove (19) corresponding to the clamping groove (17) is provided on one side of the insertion rod (16); one end of the spring (23) is vertically fixed to a side of the receiving groove (19) corresponding to the clamping groove (17), and the other end is fixed to the clamping block (18).

5. The dustproof single-phase fee-controlled smart energy meter according to claim 1 is characterized in that: The front of the housing (1) is also embedded with a wheel display button (3) located on one side of the display screen (2); the circuit board (11) is provided with a metering module, a storage module, a processing module and a transmission module; the display screen (2) and the wheel display button (3) are electrically connected to the circuit board (11); one side of the housing (1) is provided with four wiring terminals (9) electrically connected to the circuit board (11); the front of the housing (1) is provided with a wire fixing groove (7) located above the four wiring terminals (9); the wire fixing groove (7) is threadedly connected with four groups of wire fixing screws (22) that can respectively penetrate the four wiring terminals (9).

6. The dustproof single-phase fee-controlled smart energy meter according to claim 1 is characterized in that: An L-shaped dust cover (8) is hingedly connected to the wire fixing groove (7) on the front side of the housing (1). The L-shaped dust cover (8) can cover the outside of the wire fixing groove (7) and the wiring terminals (9), and four wire threading holes (10) that match the four wiring terminals (9) are also opened at the bottom of the dust cover (8).

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