An intelligent electric meter auxiliary wiring device

Abstract

The utility model discloses an intelligent electric meter auxiliary wiring device, including the casing and the conductive contact piece of assembly in the casing, the conductive contact piece detachable assembly is in the casing, the casing includes upper casing and lower casing, and the detachable cooperation between both is detachable cooperation, the design between the upper casing and lower casing of casing makes the device can be flexibly adapted to different brand and model's intelligent electric meter, the conductive contact piece detachable assembly is in the casing, and the user can assemble according to the specification and demand of intelligent electric meter, selects the appropriate conductive contact piece and casing, thereby has improved the versatility and applicability of device, has reduced the difficulty of selection and purchase, the design between upper casing and lower casing and the conductive contact piece all can detach, also make the installation process of the device more simple, and the user need not carry out complicated connection and fixed operation, when any one of three appears damage, can change to single, need not to change whole device, reduced maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of design and manufacturing technology of auxiliary tools for power equipment, and more specifically, to an auxiliary wiring device for smart meters. Background Technology

[0002] With the continuous development of smart grid technology, smart meters that allow prepaid electricity have been widely used in modern power systems, providing residents and businesses with a more convenient and accurate way to measure and pay for electricity. However, in actual use, when a user's prepaid balance is insufficient, the smart meter will automatically cut off the power supply to avoid arrears. While this mechanism effectively protects the rights and interests of the power company, it also brings some inconvenience to users, especially when users urgently need electricity after their electricity bills have run out and they need to top up their accounts.

[0003] To address this issue, auxiliary wiring devices have emerged on the market that provide temporary power to prepaid smart meters. These devices are designed to allow users to continue topping up their electricity bills by providing temporary power after a power outage, thus avoiding the inconvenience of power outages.

[0004] However, existing devices have design and usage shortcomings, especially a lack of detachability. The device's housing and key components such as conductive contacts are often fixedly connected, making disassembly and replacement difficult for users and increasing installation complexity. Furthermore, the fixed connection method limits the device's compatibility; different brands and models of smart meters may require different specifications of auxiliary wiring devices, increasing the difficulty of selection and potentially causing the device to malfunction or damage the meter due to incompatibility. Utility Model Content

[0005] This utility model overcomes the shortcomings of the prior art and provides a smart meter auxiliary wiring device that is simple in structure, reasonable in design, and more convenient to use.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An auxiliary wiring device for a smart meter includes a housing and a conductive contact piece assembled inside the housing; the conductive contact piece is detachably assembled inside the housing; the housing includes an upper housing and a lower housing, which are detachably coupled.

[0008] Furthermore, the upper housing is provided with a first mounting space for assembling conductive contact pieces; the bottom of the upper housing is provided with a first opening communicating with the first mounting space for the conductive contact pieces to enter; the lower housing cooperates with the upper housing to cover the first opening; the upper housing is provided with a socket through its upper and lower surfaces; the socket communicates with the first mounting space for the plug prongs to enter and abut against the conductive contact pieces.

[0009] Furthermore, a limiting block is provided on the top of the conductive contact piece, and a limiting groove matching the limiting block is provided in the first mounting space; the limiting groove is provided on the surface of the first mounting space away from the first opening, and the depth direction of the limiting groove corresponds to the depth direction of the first mounting space.

[0010] Furthermore, a mating space is provided inside the upper housing, which is adjacent to the limiting groove. A connecting hole is provided between the mating space and the limiting groove to allow them to communicate. A limiting hole is provided on the limiting block to penetrate its left and right surfaces. After the limiting block and the limiting groove are mated, the connecting hole and the limiting hole are at the same height, and a limiting rod is provided to pass through the connecting hole and the limiting hole in sequence. A second opening communicating with the mating space is provided at the bottom of the upper housing.

[0011] Furthermore, the first installation space includes a first region and a second region, with a corner provided between the first region and the second region; the conductive contact piece includes a first part that mates with the first region and a second part that mates with the second region, with a bend provided between the first part and the second part to mate with the corner; the socket communicates with the first region or the second region.

[0012] Furthermore, the conductive contact piece is provided with a conductive contact block, which is positioned corresponding to the position of the socket and located on the surface of the conductive contact piece near the socket; a pad is also provided on the inner surface of the socket, which is located on the surface of the socket facing the conductive contact block; the gap between the pad and the conductive contact block corresponds to the thickness of the plug prong.

[0013] Furthermore, a second mounting space is provided inside the lower housing, and a third opening is provided at the top of the lower housing for the upper housing to be detachably assembled into the second mounting space; after the upper housing is assembled into the second mounting space, the bottom surface of the second mounting space abuts against the bottom of the upper housing and covers the first opening.

[0014] Furthermore, mounting grooves are symmetrically arranged along the height direction on the left and right side surfaces of the upper housing, and the end openings of the mounting grooves are provided at the bottom of the upper housing; a mounting block matching the mounting groove is provided in the second mounting space; a mating opening communicating with the first mounting space is provided on the front side surface of the upper housing, and the conductive contact piece extends out of the first mounting space through the mating opening; a fourth opening communicating with the second mounting space is provided on the side of the lower housing corresponding to the mating opening, so that the mating opening and the conductive contact piece are exposed from the second mounting space.

[0015] Furthermore, the lower housing includes a bottom plate, a left side plate, a right side plate, and a rear side plate; the bottom plate, left side plate, right side plate, and rear side plate surround to form a second mounting space for the lower housing, and a fourth opening is formed on one side of the lower housing corresponding to the mating opening; upper assembly blocks are provided on the left and right side plates near the fourth opening, and lower assembly blocks that mate with the upper assembly blocks are provided on the side surfaces of the left and right sides of the upper housing; both the upper and lower assembly blocks include an upper contact surface and a lower contact surface, and after the upper and lower housings are mated, the lower assembly block is located below the upper assembly block, and the upper contact surface of the lower assembly block abuts against the lower contact surface of the upper assembly block; the lower assembly block The upper contact surface of the upper assembly block and the lower contact surface of the lower assembly block are both planar and parallel to the base plate; the upper contact surface of the upper assembly block and the lower contact surface of the lower assembly block are both inclined surfaces; the upper contact surface of the upper assembly block faces the left or right side surface of the upper housing, and the lower contact surface of the lower assembly block faces the left or right side plate; the base plate is provided with a notch corresponding to the upper and lower assembly blocks, which extends to the edge of the base plate corresponding to the fourth opening, so that it communicates with the outside in the horizontal direction; the base plate, the left side plate and the right side plate are made of a material that can be deformed and reset; or the entire lower housing is made of a material that can be deformed and reset.

[0016] Furthermore, the height of the upper housing is greater than the depth of the second installation space; a disassembly mating part is provided at the top of the upper housing along its edge and extending outward; after the upper housing and the lower housing are fully mated, there is a gap between the bottom surface of the disassembly mating part and the top of the left side plate, the right side plate and the rear side plate. Beneficial effects

[0017] In this invention, the upper and lower housings of the casing are designed to be detachably fitted, allowing the device to be flexibly adapted to smart meters of different brands and models. The conductive contact pieces are detachably assembled inside the casing, and users can select appropriate conductive contact pieces and casings for assembly according to the specifications and requirements of the smart meter, thereby improving the versatility and applicability of the device and reducing the difficulty of purchasing.

[0018] In this invention, the design that the upper and lower shells and the conductive contact pieces are all detachable makes the installation process of the device simpler, and users do not need to perform complicated connection and fixing operations; at the same time, if any one of the three components is damaged, the individual component can be replaced instead of replacing the entire device, thereby reducing maintenance costs.

[0019] In this invention, the first mounting space provided inside the upper housing provides a dedicated assembly area for the conductive contact piece, improving the stability and accuracy of the conductive contact piece assembly; the first opening design at the bottom of the upper housing allows the conductive contact piece to easily enter and exit the first mounting space from the bottom of the upper housing, thereby simplifying the installation and disassembly process of the conductive contact piece.

[0020] In this invention, the socket on the upper housing communicates with the first mounting space, allowing the plug prongs to enter and abut against the conductive contact piece. This design ensures a stable electrical connection between the prongs and the conductive contact piece, thereby guaranteeing the electrical performance of the entire device. Furthermore, since the socket is located on the upper housing, and the upper and lower housings are detachably connected, a matching upper housing can be replaced when the prongs on the meter plug do not match the socket.

[0021] In this invention, the limiting block at the top of the conductive contact piece matches the limiting groove in the first installation space, so that the conductive contact piece can be stably restricted within the first installation space after installation. The cooperation between the limiting block and the limiting groove restricts the horizontal movement of the conductive contact piece, thereby improving the stability of the conductive contact piece. At the same time, the cooperation between the limiting block and the limiting groove is also more convenient. When installing the conductive contact piece, the user only needs to align the limiting block of the conductive contact piece with the limiting groove and push it in, without any additional installation steps.

[0022] In this invention, the stability of the conductive contact piece in the vertical direction is further enhanced by the cooperation between the limiting rod and the connecting hole and the limiting hole; the user can conveniently insert or remove the limiting rod through the second opening at the bottom of the upper housing, thereby realizing the installation and disassembly of the conductive contact piece.

[0023] In this utility model, when assembling the conductive contact piece with the upper and lower housings, the user can use the combination of cornering and bending to initially define the position of the conductive contact piece in the first installation space, which facilitates the user to carry out the next step of installation. After the conductive contact piece is installed, the combination of cornering and bending can also provide a stable installation force to the conductive contact piece.

[0024] In this invention, the design of the conductive contact block and the pad makes the electrical connection more direct and tighter; at the same time, the gap between the pad and the conductive contact block corresponds to the thickness of the plug prongs, so that when the plug prongs are inserted into the socket, they will directly contact the conductive contact block, thereby ensuring the stability and reliability of the electrical connection.

[0025] In this utility model, by providing a second installation space inside the lower housing, the upper housing is detachably assembled into the second installation space, thus realizing a detachable design between the upper and lower housings. After the upper housing is assembled into the second installation space, the bottom surface of the second installation space abuts against the bottom of the upper housing and covers the first opening. This design not only enhances the sealing of the device, but also prevents external dust, moisture or foreign objects from entering the device, thereby improving electrical safety.

[0026] In this invention, the mounting grooves on the left and right sides of the upper housing match the mounting blocks inside the lower housing. This design allows the upper housing to be stably assembled into the second mounting space of the lower housing.

[0027] In this invention, the opening allows the conductive contact piece to easily extend through the first mounting space and connect to external electrical components or wiring; at the same time, the fourth opening allows the opening and the conductive contact piece to be exposed from the second mounting space, facilitating the user to install the upper housing and to wire and inspect the exposed conductive contact piece after the upper housing is installed.

[0028] In this utility model, the design of the upper assembly block and the lower assembly block makes the assembly between the upper shell and the lower shell more convenient and accurate. The user only needs to align the lower assembly block with the upper assembly block and press it gently to easily achieve a tight fit between the upper shell and the lower shell.

[0029] In this invention, the base plate, left side plate, and right side plate are made of a material that can be deformed and reset, or the entire lower housing is made of this material; combined with the design of the inclined contact surfaces of the upper and lower assembly blocks, the upper and lower housings can be easily engaged or disassembled by slight deformation of the lower housing during assembly, reducing the difficulty of disassembly and assembly; at the same time, the notch design can release stress, and avoid damage caused by excessive deformation of the lower housing during assembly as much as possible, thereby improving structural durability.

[0030] In this invention, the gap between the disassembly mating part and each side plate provides a force application point for disassembling the upper and lower shells; after the user applies force to the lower shell to release the fit between the upper assembly block and the lower assembly block, the user can apply force to the disassembly mating part to separate the upper and lower shells, thereby solving the problem that traditional closed shells are difficult to disassemble. Attached Figure Description

[0031] Figure 1 This is a structural diagram of the entire utility model.

[0032] Figure 2 This is a structural diagram of the upper shell.

[0033] Figure 3 This is a structural diagram of the bottom of the upper shell.

[0034] Figure 4 This is a structural diagram of the lower shell.

[0035] Figure 5 This is a cross-sectional view of the interface between the conductive contact and the limiting rod.

[0036] Figure 6 for Figure 5 Cross-sectional view of the structure without the conductive contact piece and the limiting rod assembled.

[0037] Figure 7 This is a structural diagram of a conductive contact piece.

[0038] Figure 8 This is an enlarged structural diagram of the mating area between the upper and lower assembly blocks.

[0039] Numbering on the map:

[0040] 1. Housing; 2. Conductive contact piece; 3. Upper housing; 4. Lower housing; 5. Disassembly mating part; 21. Limiting block; 22. Limiting hole; 23. Limiting rod; 24. First part; 25. Second part; 26. Bending; 27. Conductive contact block; 31. First mounting space; 32. First opening; 33. Insertion hole; 34. Limiting groove; 35. Mating space; 36. Second opening; 37. Mounting groove; 38. Mating opening; 39. Lower assembly block; 41. Second mounting space; 42. Mounting block; 43. Third opening; 44. Fourth opening; 45. Upper assembly block; 46. Notch; 311. First area; 312. Second area; 313. Corner; 331. Pad; 351. Connecting hole; 371. End opening; 401. Base plate; 402. Left side plate; 403. Right side plate; 404. Rear side plate; 601. Upper contact surface; 602. Lower contact surface; 603. Transition contact surface. Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments are merely specific descriptions of the present invention, and their purpose is to enable those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as limitations on the present invention.

[0042] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0044] like Figure 1-8 As shown, an auxiliary wiring device for a smart meter includes a housing 1 and a conductive contact piece 2 assembled within the housing 1. The conductive contact piece 2 is detachably assembled within the housing 1. The housing 1 includes an upper housing 3 and a lower housing 4, which are detachably connected. The detachable connection between the upper housing 3 and the lower housing 4 of the housing 1 allows the device to flexibly adapt to smart meters of different brands and models. The detachable assembly of the conductive contact piece 2 within the housing 1 allows users to select the appropriate conductive contact piece 2 and housing 1 for assembly according to the specifications and requirements of the smart meter, thereby improving the versatility and applicability of the device and reducing the difficulty of procurement.

[0045] In this invention, the design that the upper and lower shells 4 and the conductive contact piece 2 are all detachable makes the installation process of the device simpler, and users do not need to perform complicated connection and fixing operations; at the same time, if any one of the three is damaged, it can be replaced individually without replacing the entire device, thereby reducing maintenance costs.

[0046] In this invention, the upper housing 3 is provided with a first mounting space 31 for assembling the conductive contact piece 2. The first mounting space 31 in the upper housing 3 provides a dedicated assembly area for the conductive contact piece 2, improving the stability and accuracy of the assembly of the conductive contact piece 2. The bottom of the upper housing 3 is provided with a first opening 32 communicating with the first mounting space 31, allowing the conductive contact piece 2 to enter the first mounting space 31. This allows the conductive contact piece 2 to easily enter and exit the first mounting space 31 from the bottom of the upper housing 3, thereby simplifying the installation and disassembly process of the conductive contact piece 2. The lower housing 4 and the upper housing 3 cooperate to cover the first opening 32; the upper housing 3 is provided with a socket 33 that penetrates its upper and lower surfaces; the socket 33 communicates with the first installation space 31 to allow the plug prongs to enter and abut against the conductive contact piece 2; this design ensures a stable electrical connection between the prongs and the conductive contact piece 2, thereby ensuring the electrical performance of the entire device; at the same time, since the socket 33 is located on the upper housing 3, and the upper and lower housings 4 are detachably connected, when the prongs on the meter plug do not match the socket 33, a matching upper housing 3 can be replaced.

[0047] In this invention, a limiting block 21 is provided on the top of the conductive contact piece 2, and a limiting groove 34 matching the limiting block 21 is provided in the first mounting space 31. The limiting groove 34 is located on the surface of the first mounting space 31 away from the first opening 32, and the depth direction of the limiting groove 34 corresponds to the depth direction of the first mounting space 31. The matching of the limiting block 21 on the top of the conductive contact piece 2 with the limiting groove 34 in the first mounting space 31 allows the conductive contact piece 2 to be stably confined within the first mounting space 31 after installation. The cooperation between the limiting block 21 and the limiting groove 34 restricts the horizontal movement of the conductive contact piece 2, thereby improving the stability of the conductive contact piece 2. At the same time, the cooperation between the limiting block 21 and the limiting groove 34 is also more convenient. When installing the conductive contact piece 2, the user only needs to align the limiting block 21 of the conductive contact piece 2 with the limiting groove 34 and push it in, without any additional installation steps.

[0048] In this invention, a mating space 35 is provided inside the upper housing 3, adjacent to the limiting groove 34. A connecting hole 351 is provided between the mating space 35 and the limiting groove 34 to allow them to communicate. A limiting hole 22 is provided on the limiting block 21, penetrating its left and right surfaces. After the limiting block 21 mates with the limiting groove 34, the connecting hole 351 and the limiting hole 22 are at the same height, and a limiting rod 23 is provided to pass through the connecting hole 351 and the limiting hole 22 in sequence. Through the mating of the limiting rod 23 with the connecting hole 351 and the limiting hole 22, the vertical stability of the conductive contact piece 2 is further enhanced. A second opening 36 communicating with the mating space 35 is provided at the bottom of the upper housing 3. The user can conveniently insert or remove the limiting rod 23 through the second opening 36 at the bottom of the upper housing 3, thereby realizing the installation and disassembly of the conductive contact piece 2. In this embodiment, the limiting rod 23 is made of insulating material to protect the user's safety during operation as much as possible.

[0049] In this utility model, the first installation space 31 includes a first region 311 and a second region 312, and a corner 313 is provided between the first region 311 and the second region 312; the conductive contact piece 2 includes a first part 24 that cooperates with the first region 311 and a second part 25 that cooperates with the second region 312, and a bend 26 that cooperates with the corner 313 is provided between the first part 24 and the second part 25; the insertion hole 33 communicates with the first region 311 or the second region 312, thereby making the path of contact between the insertion piece and the conductive contact piece 2 clear. When assembling the conductive contact piece 2 with the upper and lower housings 4, the user can use the combination of the corner 313 and the bend 26 to initially limit the position of the conductive contact piece 2 in the first installation space 31, which facilitates the user's next installation step. After the conductive contact piece 2 is installed, the combination of the corner 313 and the bend 26 can also provide a stable installation force to the conductive contact piece 2, making the conductive contact piece 2 fit more closely to the inner wall of the first installation space 31 and improving the stability of the conductive contact piece 2 after assembly.

[0050] Preferably, the angle between the bend 26 and the turn 313 is less than or equal to 90 degrees, thereby providing a more stable installation force to the conductive contact piece 2 through the cooperation of the turn 313 and the bend 26; in this embodiment, the angles between the bend 26 and the turn 313 are both right angles.

[0051] In this invention, a conductive contact block 27 is provided on the conductive contact piece 2, which is positioned corresponding to the socket 33 and located on the surface of the conductive contact piece 2 near the socket 33. A pad 331 is also provided on the inner surface of the socket 33, located on the surface of the socket 33 facing the conductive contact block 27. The gap between the pad 331 and the conductive contact block 27 corresponds to the thickness of the plug prongs. The design of the conductive contact block 27 and the pad 331 makes the electrical connection more direct and tighter. At the same time, the gap between the pad 331 and the conductive contact block 27 corresponds to the thickness of the plug prongs, ensuring that when the plug prongs are inserted into the socket 33, they directly contact the conductive contact block 27, thereby ensuring the stability and reliability of the electrical connection.

[0052] It is worth noting that the conductive contact block 27, like the conductive contact piece 2, is made of conductive material; this optimizes the conductivity of the electrical contact, reduces contact resistance, and improves the current transmission efficiency.

[0053] In this utility model, a second mounting space 41 is provided inside the lower housing 4, and a third opening 43 is provided on the top of the lower housing 4 for the upper housing 3 to be detachably assembled into the second mounting space 41, thereby realizing the detachable design between the upper housing 3 and the lower housing 4. After the upper housing 3 is assembled into the second mounting space 41, the bottom surface of the second mounting space 41 abuts against the bottom of the upper housing 3 and covers the first opening 32. This design not only enhances the sealing of the device, but also prevents external dust, moisture or foreign objects from entering the device, thereby improving electrical safety.

[0054] In this utility model, mounting grooves 37 are symmetrically arranged on the side surfaces of the upper housing 3 on both sides, and an end opening 371 of the mounting groove 37 is provided at the bottom of the upper housing 3. A mounting block 42 matching the mounting groove 37 is provided in the second mounting space 41. This design allows the upper housing 3 to be stably assembled in the second mounting space 41 of the lower housing 4. When the upper and lower housings 4 are installed and fitted, the mounting block 42 enters the mounting groove 37 through the end opening 371 and fits tightly with the mounting groove 37.

[0055] In this invention, a mating opening 38 communicating with the first mounting space 31 is provided on the side surface of the front side of the upper housing 3. The conductive contact piece 2 extends out of the first mounting space 31 through the mating opening 38. The mating opening 38 allows the conductive contact piece 2 to easily extend out of the first mounting space 31 and connect to external electrical components or wiring. A fourth opening 44 communicating with the second mounting space 41 is provided on the side of the lower housing 4 corresponding to the mating opening 38, allowing the mating opening 38 and the conductive contact piece 2 to be exposed from the second mounting space 41. The fourth opening 44 allows the mating opening 38 and the conductive contact piece 2 to be exposed from the second mounting space 41, facilitating the user to install the upper housing 3 and to wire and inspect the exposed conductive contact piece 2 after the upper housing 3 is installed.

[0056] In this utility model, the lower housing 4 includes a bottom plate 401, a left side plate 402, a right side plate 403, and a rear side plate 404; the bottom plate 401, left side plate 402, right side plate 403, and rear side plate 404 surround to form a second mounting space 41 for the lower housing 4, and a fourth opening 44 is formed on one side of the lower housing 4 corresponding to the mating opening 38, and a third opening 43 is formed on the top of the lower housing 4; an upper assembly block 45 is provided on the left and right side plates 403 near the fourth opening 44, and a lower assembly block 39 that mates with the upper assembly block 45 is provided on the side surfaces of the left and right sides of the upper housing 3; both the upper assembly block 45 and the lower assembly block 39 include an upper contact surface 601 and a lower contact surface 602. After the upper housing 3 and the lower housing 4 are mated, the lower assembly block 39 is located below the upper assembly block 45, and the upper contact surface of the lower assembly block 39... 601 abuts against the lower contact surface 602 of the upper assembly block 45; both the upper contact surface 601 of the lower assembly block 39 and the lower contact surface 602 of the upper assembly block 45 are flat and parallel to the base plate 401, thereby improving the stability of the fit between the upper and lower assembly blocks 39; both the upper contact surface 601 of the upper assembly block 45 and the lower contact surface 602 of the lower assembly block 39 are inclined surfaces; the upper contact surface 601 of the upper assembly block 45 faces the left or right side of the upper housing 3, and the lower contact surface 602 of the lower assembly block 39 faces the left side plate 402 or the right side plate 403; the design of the upper assembly block 45 and the lower assembly block 39 makes the assembly between the upper housing 3 and the lower housing 4 more convenient and accurate. The user only needs to align the lower assembly block 39 with the upper assembly block 45 and press it gently to easily achieve a tight fit between the upper housing 3 and the lower housing 4.

[0057] In this embodiment, the base plate 401 is provided with a notch 46 that penetrates the upper and lower surfaces of the upper and lower assembly blocks 45 and 39, respectively. The notch 46 extends to the edge of the base plate 401 on the side corresponding to the fourth opening 44, so that it communicates with the outside in the horizontal direction. The base plate 401, the left side plate 402 and the right side plate 403 are made of materials that can be deformed and reset. Alternatively, the entire lower housing 4 is made of materials that can be deformed and reset. With the design of the inclined contact surfaces of the upper and lower assembly blocks 39, the upper and lower housings 4 can be easily engaged or disengaged by slight deformation of the lower housing 4 during assembly, reducing the difficulty of disassembly and assembly. At the same time, the design of the notch 46 can release stress and avoid damage caused by excessive deformation of the lower housing 4 during assembly, thereby improving the structural durability.

[0058] In this embodiment, the lower housing 4 is made of an engineering plastic with insulating properties and elastic deformation. It has a certain strength to protect the internal conductive contacts, and can also support a certain slight deformation to easily achieve the engagement or separation between the upper and lower housings 4. At the same time, it has insulation capabilities to provide safety for users.

[0059] In this embodiment, the mounting block 42 is disposed on the left and right side plates 403; there is a certain distance between the upper assembly block 45 and the mounting block 42 to avoid the tight fit between the mounting block 42 and the mounting groove 37 affecting the deformation of the lower housing 4.

[0060] In this embodiment, an inclined transition contact surface 603 is also provided between the upper contact surface 601 and the lower contact surface 602 to facilitate the transition between the upper and lower contact surfaces 602 when the upper and lower assembly blocks 39 are engaged; thereby enabling the upper and lower housings 4 to exchange and engage their positions by means of the engagement of the inclined surfaces between the upper and lower assembly blocks 39 and the slight deformation of the lower housing 4 during assembly.

[0061] In this invention, the height of the upper housing 3 is greater than the depth of the second installation space 41; a disassembly fitting part 5 is provided at the top of the upper housing 3, extending outward along its edge; after the upper housing 3 and the lower housing 4 are fitted together, there is a gap between the bottom surface of the disassembly fitting part 5 and the top of the left side plate 402, the right side plate 403 and the rear side plate 404; the gap between the disassembly fitting part 5 and each side plate provides a force application point for disassembling the upper and lower housings 4; after the user applies force to the area where the upper assembly block 45 is provided on the lower housing 4 to release the fit between the upper assembly block 45 and the lower assembly block 39, force can be applied to the disassembly fitting part 5 to separate the upper and lower housings 4, thereby solving the problem that the traditional closed housing 1 is difficult to disassemble.

[0062] During assembly, the device can be adjusted based on the actual condition of the external electrical components or wiring. When a significant portion of the external electrical components or wiring is exposed for easy connection, the conductive contact piece 2 can be assembled between the conductive contact piece 2 and the upper and lower housings 4, and then the conductive contact piece 2 extending from the first mounting space 31 can be connected to the external electrical components or wiring. When a small portion of the external electrical components or wiring is exposed and inconvenient for connection, the conductive contact piece 2 can be connected to the external electrical components or wiring first, and then the conductive contact piece 2 can be assembled between the upper and lower housings 4. After assembly, the plug on the smart meter can always be connected to this device; it can also be connected to this device when the user needs to recharge after a power outage due to insufficient funds. Furthermore, when the smart meter is damaged or malfunctions and needs to be replaced, this device can also replace the corresponding upper housing 3 and / or conductive contact piece 2 according to the power supply requirements of the replacement meter.

[0063] It is worth noting that the other technical solutions of this utility model are all existing technologies, and therefore will not be described in detail.

[0064] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the concept of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An auxiliary wiring device for a smart meter, comprising a housing and conductive contact pieces assembled within the housing; characterized in that, The conductive contact piece is detachably assembled inside the housing; the housing includes an upper housing and a lower housing, which are detachably fitted together. The upper housing has a first mounting space for assembling conductive contact pieces; the bottom of the upper housing has a first opening communicating with the first mounting space for the conductive contact pieces to enter; the lower housing cooperates with the upper housing to cover the first opening. The upper housing is provided with a through hole that extends through its upper and lower surfaces; the through hole communicates with the first mounting space so that the plug prongs can enter and abut against the conductive contact piece.

2. The auxiliary wiring device for a smart meter according to claim 1, characterized in that, A limiting block is provided on the top of the conductive contact piece, and a limiting groove matching the limiting block is provided in the first installation space; the limiting groove is provided on the surface of the first installation space away from the first opening, and the depth direction of the limiting groove corresponds to the depth direction of the first installation space.

3. The auxiliary wiring device for a smart meter according to claim 2, characterized in that, The upper housing is also provided with a mating space, which is adjacent to the limiting groove. A connecting hole is provided between the mating space and the limiting groove to allow them to communicate. The limiting block is provided with a limiting hole that penetrates its left and right surfaces. After the limiting block and the limiting groove are mated, the connecting hole and the limiting hole are at the same height, and a limiting rod is provided to pass through the connecting hole and the limiting hole in sequence. A second opening communicating with the mating space is provided at the bottom of the upper housing.

4. The auxiliary wiring device for a smart meter according to claim 3, characterized in that, The first installation space includes a first area and a second area, with a corner provided between the first area and the second area; The conductive contact includes a first part that mates with a first region and a second part that mates with a second region, and a bend that mates with a corner is provided between the first part and the second part; The jack communicates with either the first region or the second region.

5. The auxiliary wiring device for a smart meter according to claim 4, characterized in that, The conductive contact piece is provided with a conductive contact block, which is positioned corresponding to the position of the socket and is located on the surface of the conductive contact piece near the socket. A pad is also provided on the inner surface of the socket, and the pad is located on the surface of the socket facing the conductive contact block; the gap between the pad and the conductive contact block corresponds to the thickness of the plug prongs.

6. The auxiliary wiring device for a smart meter according to claim 5, characterized in that, The lower housing has a second mounting space, and the top of the lower housing has a third opening for the upper housing to be detachably assembled into the second mounting space. After the upper housing is assembled into the second mounting space, the bottom surface of the second mounting space abuts against the bottom of the upper housing and covers the first opening.

7. The auxiliary wiring device for a smart meter according to claim 6, characterized in that, The upper housing has symmetrical mounting grooves arranged along its height on the left and right side surfaces, and the bottom of the upper housing has end openings of the mounting grooves; a mounting block matching the mounting grooves is provided in the second mounting space. A mating opening communicating with the first mounting space is provided on the side surface of the front side of the upper housing, and the conductive contact piece extends out of the first mounting space through the mating opening; A fourth opening communicating with the second mounting space is provided on one side of the lower housing corresponding to the mating opening, allowing the mating opening and the conductive contact piece to be exposed from the second mounting space.

8. The auxiliary wiring device for a smart meter according to claim 7, characterized in that, The lower housing includes a bottom plate, a left side plate, a right side plate, and a rear side plate; the bottom plate, left side plate, right side plate, and rear side plate surround to form a second mounting space for the lower housing, and a fourth opening is formed on one side of the lower housing corresponding to the mating opening; Upper assembly blocks are provided near the fourth opening on the left and right side plates, and lower assembly blocks that cooperate with the upper assembly blocks are provided on the side surfaces of the left and right sides of the upper housing. Both the upper assembly block and the lower assembly block include an upper contact surface and a lower contact surface. After the upper housing and the lower housing are fitted together, the lower assembly block is located below the upper assembly block, and the upper contact surface of the lower assembly block abuts against the lower contact surface of the upper assembly block. The upper contact surface of the lower assembly block and the lower contact surface of the upper assembly block are both planes and are parallel to the base plate. The upper contact surface of the upper assembly block and the lower contact surface of the lower assembly block are both inclined surfaces; the upper contact surface of the upper assembly block faces the left or right surface of the upper housing, and the lower contact surface of the lower assembly block faces the left or right plate. The base plate has a notch that penetrates the upper and lower surfaces of the upper and lower assembly blocks. The notch extends to the edge of the base plate on the side corresponding to the fourth opening, so that it communicates with the outside in the horizontal direction. The bottom plate, left side plate, and right side plate are made of a material that can be deformed and reset; or the entire lower shell is made of a material that can be deformed and reset.

9. The auxiliary wiring device for a smart meter according to claim 8, characterized in that, The height of the upper housing is greater than the depth of the second installation space; a disassembly mating part is provided at the top of the upper housing along its edge and extending outward; after the upper housing and the lower housing are fitted together, there is a gap between the bottom surface of the disassembly mating part and the top of the left side plate, the right side plate and the rear side plate.

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