Single-phase intelligent electric meter with high protection

Abstract

The invention discloses a high-protection single-phase intelligent electric meter, and relates to the technical field of single-phase intelligent electric meters, the high-protection single-phase intelligent electric meter comprises a meter box, the front side of the meter box is detachably provided with a front cover, and one side of the meter box is provided with a junction box used for auxiliary wiring connection. In the using process of the single-phase intelligent electric meter, through mutual cooperation of the sealing assembly, the inflation assembly, the transmission assembly, the protection assembly and other parts, the sealing effect between the front cover and the meter box after installation is guaranteed, high-protection use of the single-phase intelligent electric meter is guaranteed, the sealing performance of the meter box can also be guaranteed before and after wiring connection of the junction box, and the service life of the single-phase intelligent electric meter is prolonged. And the sealing use of the meter box is further ensured.

Description

Technical Field

[0001] This invention relates to the field of single-phase smart meter technology, specifically to a single-phase smart meter with high protection. Background Technology

[0002] Single-phase smart meters are intelligent metering instruments used to measure the energy consumption in single-phase AC circuits. Based on traditional meters, single-phase smart meters integrate microprocessors, communication modules, and data storage functions. They can not only accurately measure electricity consumption, but also realize intelligent functions such as remote meter reading, real-time transmission of electricity data, overload protection, and fee control management (such as prepayment and remote power outage / power restoration). They are widely used in residential households and small single-phase electricity consumption scenarios, adapting to the needs of smart grids for electricity information collection, analysis, and management, and improving the efficiency of electricity metering and the level of intelligent management.

[0003] Single-phase smart meters rely on gaskets for sealing protection during use. However, in coastal areas, the environment is characterized by high humidity, high salt content, and strong corrosiveness to electronic components. Simply relying on gaskets for sealing can lead to poor sealing performance due to wear and deformation of the gaskets during use, affecting the stable operation of the single-phase smart meter. Therefore, we propose a single-phase smart meter with high protection. Summary of the Invention

[0004] The purpose of this invention is to provide a single-phase smart meter with high protection to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a single-phase smart meter with high protection, comprising a meter box, a front cover detachably installed on the front side of the meter box, a junction box for auxiliary wiring connection provided on one side of the meter box, a sealing component for sealing during the closing of the front cover and an inflation component for inflating the sealing component inside the meter box, a transmission component for driving the inflation component and a pressure-reducing component for depressurizing the inside of the meter box during transmission on the meter box, and a protective component for sealing and protecting the wiring on the junction box.

[0006] Preferably, the sealing assembly includes a U-shaped mounting groove formed on the front end of the watch case, and a U-shaped airbag for pressing against the front cover is installed inside the U-shaped mounting groove.

[0007] Preferably, two sets of the inflation assembly are symmetrically arranged inside the instrument box. The inflation assembly includes an inflation tube installed inside the instrument box. One end of the inflation tube is connected to the inside of the U-shaped air bag. A push rod for compressing the gas inside the inflation tube is slidably connected to the inflation tube.

[0008] Preferably, the transmission assembly includes a connecting plate fixed to one end of the push rod, and a telescopic assembly for assisting telescopic connection is provided between the connecting plate and the interior of the meter box. A transmission pin is fixed on the connecting plate, and a transmission plate is provided on the meter box. A connecting assembly for assisting the installation and connection of the transmission plate is provided inside the meter box, and one end of the transmission plate protrudes from the front side of the meter box. Two sets of inclined grooves are provided on the transmission plate, and the two sets of transmission pins are slidably connected to the two sets of inclined grooves respectively.

[0009] Preferably, the connecting assembly includes two sets of first sleeves fixed inside the instrument box, and the two sets of first sleeves are arranged symmetrically. A first slide rod is slidably connected to the first sleeve, and one end of the first slide rod is fixed to the transmission plate.

[0010] Preferably, the telescopic assembly includes a second sleeve fixed inside the watch case, a second slide rod slidably connected to the second sleeve, one end of the second slide rod being fixed to a connecting plate, and a first spring sleeved on the outside of the second sleeve, with both ends of the first spring being connected to the inner wall of the watch case and the connecting plate, respectively.

[0011] Preferably, two sets of the pressure-drawing components are symmetrically arranged on the meter box, and the two sets of pressure-drawing components are respectively arranged one-to-one with the two sets of connecting plates. The pressure-drawing component includes a piston cylinder fixed on the meter box, and a pressure-drawing rod for pressing the inside of the meter box is slidably connected on the piston cylinder. One end of the pressure-drawing rod is fixed to the connecting plate, and the other end of the pressure-drawing rod is located inside the piston cylinder and fixed with a piston plate.

[0012] Preferably, the protective component includes multiple sets of wiring slots and wire holes opened on the junction box. Each set of wiring slots is respectively connected to each set of wire holes. A sealing ring is fixed inside the wire hole for sealing against the outside of the wire after wire is passed through. A baffle for blocking and sealing the wire hole is connected to one side of the junction box through a spring component. The baffle is provided with an inclined surface for abutting against the wire end.

[0013] The elastic component includes a fixing plate fixed to one side of the junction box, a plurality of third sleeves fixed on the fixing plate, a third slide rod slidably connected to the third sleeve, one end of the third slide rod being fixed to a baffle, and a second spring being sleeved on the outside of the third sleeve, with both ends of the second spring being fixed to the fixing plate and the baffle respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the process of using a single-phase smart meter, this invention ensures the sealing effect between the front cover and the meter box after installation through the cooperation of components such as sealing components, inflation components, transmission components, and protective components, thus guaranteeing the high protection of the single-phase smart meter. Furthermore, the meter box's sealing performance can be maintained before and after wiring connections at the junction box, further ensuring the sealed operation of the meter box. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal electrical components of the meter box according to the present invention;

[0018] Figure 3 This is a schematic diagram of the sealing assembly structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the sealing assembly and inflation assembly of the present invention;

[0020] Figure 5 This is a schematic diagram of the transmission assembly, connection assembly, telescopic assembly, and pressing assembly of the present invention;

[0021] Figure 6 This is a schematic diagram showing the transmission direction of the transmission component of the present invention during transmission.

[0022] Figure 7 This is a schematic diagram of the protective component structure of the present invention;

[0023] Figure 8 This is a schematic diagram of the junction box structure of the present invention;

[0024] Figure 9 This is a schematic diagram of the elastic component structure of the present invention.

[0025] In the diagram: 101-Meter box; 102-Front cover; 103-Junction box; 201-U-shaped mounting slot; 202-U-shaped airbag; 301-Inflation pipe; 302-Push rod; 401-Connecting plate; 402-Transmission pin; 403-Transmission plate; 404-Slanted groove; 501-First sleeve; 502-First slide rod; 601-Second sleeve; 602-Second slide rod; 603-First spring; 701-Wiring groove; 702-Wire hole; 703-Sealing ring; 704-Baffle; 705-Slanted surface; 801-Fixing plate; 802-Third sleeve; 803-Third slide rod; 804-Second spring; 901-Piston cylinder; 902-Pumping rod. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] Please see Figures 1-9 The diagram shows a single-phase smart meter with high protection, including a meter box 101, a front cover 102 detachably installed on the front side of the meter box 101, a junction box 103 for auxiliary wiring connections on one side of the meter box 101, and also including:

[0029] The main control MCU, relays, LED indicators, carrier module, 485 communication module, storage module, display screen, buttons and battery are installed inside the meter box 101. The meter box 101 is equipped with a sealing component for sealing during the closing of the front cover 102 and an inflation component for inflating the sealing component. The meter box 101 is equipped with a transmission component for driving the inflation component and a pressure-squeezing component for pressing the inside of the meter box 101 during the transmission process. The junction box 103 is equipped with a protective component for sealing and protecting the wiring.

[0030] It should be noted that during the use of the single-phase smart meter, the sealing component, the inflation component, the transmission component and the protection component work together to ensure the sealing effect between the front cover 102 and the meter box 101 after installation, ensuring the high protection of the single-phase smart meter. Furthermore, the sealing of the meter box 101 can be ensured before and after the wiring is connected to the junction box 103, further ensuring the sealed use of the meter box 101.

[0031] Preferably, the main control MCU has metering function and is used to control the operation of the entire meter; the relay is used to control whether to supply power to the user; there are two sets of LED indicators, which are used to display pulses and whether the tripping status is present; the carrier module is used for the meter to communicate with the master station to report data or receive instructions; the 485 communication module is used for external communication with the meter; the storage module communicates with the main control board through SPI / IIC to store the user electricity consumption information data calculated by the meter; the display screen is used to display the user electricity consumption information data in the meter; the buttons are used to operate and control the content displayed on the display screen; and the battery is used to supply power to the internal components of the meter in case of accidental power failure.

[0032] It should be noted here that: during the use of a single-phase smart meter, the single-phase intelligent meter reading operation is achieved through the main control MCU, relays, LED indicators, carrier module, 485 communication module, storage module, display screen, buttons and battery electrical components inside the meter;

[0033] It is worth noting here that the main control MCU, relays, LED indicators, carrier module, 485 communication module, storage module, display screen, buttons and battery electrical components are considered prior art in this application, and their working principles and operation methods will not be described in detail here.

[0034] Preferably, the carrier module is located below the display screen, the buttons are located to the right of the carrier module, and the LED indicator is located below the display screen;

[0035] It should be noted that the layout of the carrier module, display screen, buttons, and LED indicators makes installation and connection easier.

[0036] Preferably, the sealing assembly includes a U-shaped mounting groove 201 opened on the front end of the instrument box 101, and a U-shaped airbag 202 for pressing against the front cover 102 is installed inside the U-shaped mounting groove 201; two sets of inflation assemblies are symmetrically arranged inside the instrument box 101, and the inflation assemblies include an inflation tube 301 installed inside the instrument box 101, one end of the inflation tube 301 is connected to the inside of the U-shaped airbag 202, and a push rod 302 for compressing the gas inside the inflation tube 301 is slidably connected to the inflation tube 301;

[0037] It should be noted that when the front cover 102 is installed on the front end of the meter box 101, during the installation process, the push rod 302 is pushed towards the inside of the inflation tube 301 through the transmission, and part of the gas inside the inflation tube 301 is compressed and transported to the inside of the U-shaped airbag 202 through the inflation tube 301, inflating the inside of the U-shaped airbag 202. Through the inflation action, the U-shaped airbag 202 expands during the installation of the front cover 102. Through the expansion of the U-shaped airbag 202, the U-shaped airbag 202 fully abuts against the front cover 102 during the installation process, ensuring the sealing effect between the front cover 102 and the meter box 101 after installation, and ensuring the high protection of the single-phase smart meter.

[0038] Preferably, the transmission assembly includes a connecting plate 401 fixed to one end of the push rod 302, a telescopic assembly for assisting telescopic connection is provided between the connecting plate 401 and the interior of the meter box 101, a transmission pin 402 is fixed on the connecting plate 401, a transmission plate 403 is provided on the meter box 101, a connecting assembly for assisting the installation and connection of the transmission plate 403 is provided inside the meter box 101, and one end of the transmission plate 403 protrudes from the front side of the meter box 101. Two sets of inclined grooves 404 are provided on the transmission plate 403, and the two sets of transmission pins 402 are slidably connected to the two sets of inclined grooves 404 respectively.

[0039] It should be noted that when the front cover 102 is installed on the front end of the instrument box 101, the front cover 102 and the transmission plate 403 protrude from the instrument box 101 and abut against each other. During this abutment, the transmission plate 403 is pushed to move under force. During the movement of the transmission plate 403, the sliding guide action of the first sleeve 501 and the first slide rod 502 causes the force-bearing transmission plate 403 to retract towards the inside of the instrument box 101. During the movement of the transmission plate 403, the interaction between the two sets of inclined grooves 404 and the two sets of transmission pins 402 drives the two sets of connecting plates 401 to move under force. During the movement of the connecting plates 401 under force, the sliding guide action of the second sleeve 601 and the second slide rod 602 causes the two sets of connecting plates 401 to move away from each other under force.

[0040] Preferably, the connecting assembly includes two sets of first sleeves 501 fixed inside the meter box 101, and the two sets of first sleeves 501 are arranged symmetrically. A first slide rod 502 is slidably connected to the first sleeve 501, and one end of the first slide rod 502 is fixed to the transmission plate 403.

[0041] It should be noted here that the first sleeve 501 and the first slide rod 502 facilitate the movement guidance of the auxiliary transmission plate 403 after it is subjected to force.

[0042] Preferably, the telescopic assembly includes a second sleeve 601 fixed inside the meter box 101, a second slide rod 602 slidably connected to the second sleeve 601, one end of the second slide rod 602 being fixed to the connecting plate 401, and a first spring 603 being sleeved on the outside of the second sleeve 601, with both ends of the first spring 603 being connected to the inner wall of the meter box 101 and the connecting plate 401 respectively.

[0043] It should be noted here that the second sleeve 601 and the second slide rod 602 facilitate the extension and retraction guidance of the connecting plate 401 after being subjected to force.

[0044] Preferably, two sets of pressure-drawing assemblies are symmetrically arranged on the meter box 101, and the two sets of pressure-drawing assemblies are respectively arranged one-to-one with the two sets of connecting plates 401. The pressure-drawing assembly includes a piston cylinder 901 fixed on the meter box 101, and a pressure-drawing rod 902 for pressing the inside of the meter box 101 is slidably connected on the piston cylinder 901. One end of the pressure-drawing rod 902 is fixed to the connecting plate 401, and the other end of the pressure-drawing rod 902 is located inside the piston cylinder 901 and is fixed with a piston plate.

[0045] It should be noted that during the movement of the connecting plate 401, the piston plate is pushed to move from inside the piston cylinder 901 toward the outside of the meter box 101 through the connecting action of the pressure rod 902. The movement of the piston plate draws pressure on the inside of the meter box 101, which makes it easier to seal the meter box 101.

[0046] Preferably, the protective component includes multiple sets of wiring slots 701 and wire holes 702 opened on the junction box 103. Each set of wiring slots 701 is respectively connected to each set of wire holes 702. A sealing ring 703 is fixed inside the wire hole 702 for sealing against the outside of the wire after wire is passed through. A baffle 704 for blocking and sealing the wire hole 702 is connected to one side of the junction box 103 through a spring component. The baffle 704 is provided with an inclined surface 705 for abutting against the terminal of the wire.

[0047] It should be noted that before wiring a single-phase smart meter, each set of baffles 704 abuts and seals each set of wire holes 702, making the junction box 103 and the meter box 101 relatively sealed. When wiring is required, the end of the wire is abutted against the inclined surface 705 on the baffle 704. During the abutting process, the baffle 704 is pushed to retract. With the retraction of the baffle 704 and the continued pushing of the wire, the wire passes through the wire hole 702 and into the wiring slot 701, enabling normal wiring. During the process of the wire passing through the wire hole 702, the inner side of the sealing ring 703 abuts against the outer side of the wire. Through the abutting action, the wire body after the connection is sealed and protected, further ensuring the sealed use of the meter box 101.

[0048] The elastic component includes a fixing plate 801 fixed to one side of the junction box 103. Multiple sets of third sleeves 802 are fixed on the fixing plate 801. A third slide rod 803 is slidably connected to the third sleeve 802. One end of the third slide rod 803 is fixed to the baffle 704. A second spring 804 is sleeved on the outside of the third sleeve 802. Both ends of the second spring 804 are fixed to the fixing plate 801 and the baffle 704 respectively.

[0049] It should be noted that the third sleeve 802 and the third slide rod 803 facilitate the movement guidance of the baffle 704 after the auxiliary force is applied, and the second spring 804 facilitates the reset of the baffle 704 after the contraction movement.

[0050] This solution includes a highly protected single-phase smart meter comprising the following steps:

[0051] During use, single-phase smart meters achieve intelligent meter reading through the internal main control MCU, relays, LED indicators, carrier module, 485 communication module, storage module, display screen, buttons, and battery electrical components.

[0052] Furthermore, during the use of the single-phase smart meter, the front cover 102 is installed and closed to the front end of the meter box 101. During the installation process, the front cover 102 and the transmission plate 403 protrude from the meter box 101 and abut against each other. During this abutment, the transmission plate 403 is pushed to move under force. During the movement of the transmission plate 403, the sliding guide action of the first sleeve 501 and the first slide rod 502 causes the force-bearing transmission plate 403 to retract towards the interior of the meter box 101. During the movement of the transmission plate 403, the interaction between the two sets of inclined grooves 404 and the two sets of transmission pins 402 drives the two sets of connecting plates 401 to move under force. During the movement of the connecting plates 401 under force, the sliding guide action of the second sleeve 601 and the second slide rod 602 causes the two sets of connecting plates 401 to move away from each other after being subjected to force. During the movement of the two sets of connecting plates 401, the two sets of push rods 302 are respectively directed towards the two... The internal pushing mechanism of the inflation tube 301, via the push rod 302, pushes the air inside the inflation tube 301 inwards, compressing and transporting some of the gas inside the inflation tube 301 to the inside of the U-shaped airbag 202, inflating the inside of the U-shaped airbag 202. Through inflation, the U-shaped airbag 202 expands during the installation of the front cover 102. The expansion of the U-shaped airbag 202 ensures that it fully abuts against the front cover 102 during installation, guaranteeing the sealing effect between the front cover 102 and the meter box 101 after installation, ensuring the high protection of the single-phase smart meter. During the movement of the connecting plate 401, the piston plate is pushed from inside the piston cylinder 901 toward the outside of the meter box 101 through the connecting action of the pressure rod 902. Through the movement of the piston plate, the inside of the meter box 101 is compressed, which further facilitates the sealing of the meter box 101.

[0053] Before wiring a single-phase smart meter, each set of baffles 704 abuts and seals each set of wire holes 702, making the junction box 103 and the meter box 101 relatively sealed. When wiring is required, the end of the wire abuts against the inclined surface 705 on the baffle 704. During the abutment process, the baffle 704 is pushed to retract. With the retraction of the baffle 704 and the continued insertion of the wire, the wire passes through the wire hole 702 and into the wiring slot 701, enabling normal wiring. During the process of the wire passing through the wire hole 702, the inner side of the sealing ring 703 abuts against the outer side of the wire. Through the abutment action, the wire body after the wire connection is sealed and protected, further ensuring the sealed use of the meter box 101.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-phase smart meter with high protection, comprising: Meter box (101), the front of the meter box (101) is detachably fitted with a front cover (102), and a junction box (103) for auxiliary wiring connection is provided on one side of the meter box (101); Its features are: The inside of the meter box (101) is provided with a sealing component for sealing during the closing of the front cover (102) and an inflation component for inflating the inside of the sealing component. The meter box (101) is provided with a transmission component for driving the inflation component and a pressure-squeezing component for pressing the inside of the meter box (101) during the transmission process. The junction box (103) is provided with a protective component for sealing and protecting the wiring.

2. A single-phase smart meter with high protection according to claim 1, characterized in that: The sealing assembly includes a U-shaped mounting groove (201) opened on the front end of the watch case (101), and a U-shaped airbag (202) for pressing against the front cover (102) is installed inside the U-shaped mounting groove (201).

3. A single-phase smart meter with high protection according to claim 2, characterized in that: Two sets of the inflation assembly are symmetrically arranged inside the instrument box (101). The inflation assembly includes an inflation tube (301) installed inside the instrument box (101). One end of the inflation tube (301) is connected to the inside of the spiral airbag (202). A push rod (302) for squeezing the gas inside the inflation tube (301) is slidably connected to the inflation tube (301).

4. A single-phase smart meter with high protection according to claim 3, characterized in that: The transmission assembly includes a connecting plate (401) fixed to one end of the push rod (302). A telescopic assembly for assisting telescopic connection is provided between the connecting plate (401) and the interior of the meter box (101). A transmission pin (402) is fixed on the connecting plate (401). A transmission plate (403) is provided on the meter box (101). A connecting assembly for assisting the installation and connection of the transmission plate (403) is provided inside the meter box (101). One end of the transmission plate (403) protrudes from the front side of the meter box (101). Two sets of inclined grooves (404) are provided on the transmission plate (403). The two sets of transmission pins (402) are slidably connected to the two sets of inclined grooves (404).

5. A single-phase smart meter with high protection according to claim 4, characterized in that: The connecting assembly includes two sets of first sleeves (501) fixed inside the watch box (101), and the two sets of first sleeves (501) are arranged symmetrically. A first slide rod (502) is slidably connected to the first sleeve (501), and one end of the first slide rod (502) is fixed to the transmission plate (403).

6. A single-phase smart meter with high protection according to claim 5, characterized in that: The telescopic assembly includes a second sleeve (601) fixed inside the meter box (101), a second slide rod (602) slidably connected to the second sleeve (601), one end of the second slide rod (602) being fixed to the connecting plate (401), and a first spring (603) sleeved on the outside of the second sleeve (601), with both ends of the first spring (603) being connected to the inner wall of the meter box (101) and the connecting plate (401) respectively.

7. A single-phase smart meter with high protection according to claim 6, characterized in that: Two sets of the pressure-drawing components are symmetrically arranged on the meter box (101), and the two sets of pressure-drawing components are respectively arranged one-to-one with the two sets of connecting plates (401). The pressure-drawing components include a piston cylinder (901) fixed on the meter box (101). A pressure-drawing rod (902) for pressing the inside of the meter box (101) is slidably connected on the piston cylinder (901). One end of the pressure-drawing rod (902) is fixed to the connecting plate (401), and the other end of the pressure-drawing rod (902) is located inside the piston cylinder (901) and fixed with a piston plate.

8. A single-phase smart meter with high protection according to claim 7, characterized in that: The protective assembly includes multiple sets of wiring slots (701) and wire holes (702) opened on the junction box (103). Each set of wiring slots (701) is connected to each set of wire holes (702). A sealing ring (703) is fixed inside the wire hole (702) for sealing against the outside of the wire after wire is passed through. A baffle (704) for blocking and sealing the wire hole (702) is connected to one side of the junction box (103) through an elastic component. The baffle (704) is provided with an inclined surface (705) for abutting against the wire terminal.

9. A single-phase smart meter with high protection according to claim 8, characterized in that: The elastic component includes a fixing plate (801) fixed to one side of the junction box (103). Multiple sets of third sleeves (802) are fixed on the fixing plate (801). A third slide rod (803) is slidably connected to the third sleeve (802). One end of the third slide rod (803) is fixed to the baffle (704). A second spring (804) is sleeved on the outside of the third sleeve (802). The two ends of the second spring (804) are fixed to the fixing plate (801) and the baffle (704) respectively.

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