TWM608349U - Single-phase two-wire smart electrical meter - Google Patents

Abstract

This model is a single-phase two-wire smart electric meter. A box body for accommodating a wireless communication module is protrudingly provided on the shell. The box body opening is pivotally connected to a cover plate, and a cover is provided between the box body opening and the cover plate. Waterproof adhesive tape, and a lead sealing component is used for the lead sealing operation; the lead sealing component includes a screw, a positioning piece and a lead sealing element. The screw locks the cover on the box body, and the positioning piece is It is arranged on the screw threading path and forms a limiting channel. When the thickness of the waterproof rubber strip reaches a sealing thickness, the limiting channel is aligned with the positioning groove on the cover plate for the lead sealing element to pass through the The positioning groove and the limit channel are buckled together; in this way, the lead sealing component of the present invention has both the locking and waterproof function confirmation, and the lead sealing operation.

Description

Single-phase two-wire smart meter

This model relates to a single-phase two-wire smart electric meter, especially a single-phase two-wire smart electric meter with a multifunctional lead sealing structure.

In order to achieve the purpose of energy saving, the construction of advanced metering infrastructure (AMI) is an important task. Through the setting of smart meters, coupled with time and electricity prices and other measures, the demand side management can be strengthened and the energy can be used to achieve the most suitable efficiency. In order to achieve the goal of restraining peak electricity consumption and saving energy.

As shown in Figure 6, it is a mechanical single-phase two-wire electric meter 80 that is currently used to calculate public electricity consumption in China. It is commonly installed on the outdoor wall or pillar of a building for meter copyers to conveniently copy the public power of the building. energy used. Therefore, in order to replace the mechanical single-phase two-wire electric meter 80 with a single-phase two-wire smart electric meter to complete the infrastructure construction of the smart electric meter, the service life and lead sealing operation must first be considered.

There are many problems in the actual promotion of traditional smart meters. For example, according to my country's Law of Weights and Measures, the meter that calculates the cost must pass the weights and measures test and then be sealed to prevent it from being opened and modified at will. Based on safety considerations, smart meters on the market are also It is further designed so that it cannot be connected to any external terminals to avoid the risk of information being modified; however, as the communication function of the smart meter is limited, it cannot meet the management requirements of optimal power consumption in real time.

Therefore, to truly implement the infrastructure construction of smart meters, mechanical single-phase two-wire meters must be replaced with smart meters, but at the same time, they must be able to take into account the requirements of outdoor waterproofing, convenient lead sealing operations, and safe data communication.

In view of the demand for the above-mentioned single-phase two-wire smart electric meter, the main purpose of the present invention is to provide a new single-phase two-wire smart electric meter.

The main technical means used to achieve the above purpose is to make the single-phase two-wire smart meter include: A casing, a front side plate of which protrudes forward of a box body, and a first perforation is formed on the periphery of the opening of the box body and near the first side of the box body; A wireless communication module is set in the box; A cover plate, one side of which is pivotally connected to the second side of the box body, to cover the opening of the box body, the cover plate corresponds to the first perforation and extends forward with a hollow cylinder, and the bottom surface of the hollow cylinder is formed with a hollow cylinder Aligning with the second through hole of the first through hole, and forming two opposite positioning grooves on the side wall of the hollow cylinder; A waterproof rubber strip is sandwiched between the box body and the cover plate; and A lead seal assembly, which contains: A screw penetrates through the hollow cylinder of the cover plate, passes through the first through hole and the second through hole, and is screwed to the box body; A positioning member is arranged on the screw threading path and forms a limiting channel. When the thickness of the waterproof rubber strip reaches a sealing thickness, the limiting channel is aligned with the positioning grooves; and A first sealing element passes through the positioning groove of the hollow cylinder and the limiting passage of the positioning member for lead sealing; wherein the height of the positioning groove and the limiting passage is the same as the height of the first sealing element The thickness of the buckle is matched.

From the above description, it can be seen that the single-phase two-wire smart meter of the present invention uses wireless communication modules. It does not need to reserve signal ports for external terminals to smoothly transmit meter billing information, and consider the importance of waterproofing. The single-phase two-wire smart meter is performing the wireless communication module inspection lead sealing operation. When the operator finally uses the lead sealing assembly, he only needs to tighten the screw, and the limit channel of the positioning part is connected to the positioning slot of the hollow cylinder. Align, at this time, the waterproof tape has been pressed to the sealing thickness to achieve sufficient waterproof effect, and the mutually aligned limit channels and positioning grooves can be used to buckle the lead sealing components; on the contrary, if the operator does not tighten the screws The screw not only fails to buckle the lead sealing element, but also means that the waterproof rubber strip has not reached the sealing thickness; therefore, the new lead sealing assembly allows the operator to lock the cover plate to the box body at the same time to ensure that the cover plate and the box The waterproof function between the bodies, and the final lead sealing operation.

The new system mainly proposes improvements for single-phase two-wire meters. The technical content of the new type is described in detail below with a number of embodiments and drawings.

First, please refer to Fig. 1, which is a three-dimensional appearance view of the first embodiment of the new single-phase two-wire smart electric meter. In conjunction with Fig. 2, the single-phase two-wire smart electric meter 1 includes a housing 10 , A power metering unit 20, a wireless communication module 33, a cover plate 40, a waterproof rubber strip 50, a lead seal assembly 60, a power line connection terminal base 70, a first trim cover 71 and a second trim板盖72。 Plate cover 72.

A front side plate 101 of the housing 10 protrudes forward of a box body 11, and a first through hole 112 is formed on the periphery of the opening 110 of the box body 11 and close to the first side 111 of the box body 11; in this embodiment, the first hole 112 is formed. The through hole 112 is a screw hole.

The above-mentioned power metering unit 20 is installed in the housing 10.

The above-mentioned wireless communication module 30 is arranged in the box body 11 of the housing 10 and is electrically connected to the power metering unit 20; in this embodiment, the wireless communication module 30 is a pluggable wireless communication module The set is plugged into the power metering unit 20; and the housing 31 of the wireless communication module 30 extends toward the surface of the cover plate 40 with a protrusion 32 for the wireless communication module 30 to be pulled out by hand for easy replacement The wireless communication module 30; preferably, the housing 31 has an arc-shaped side 33 facing the first side 111 of the box body 11 to be compatible with single-phase three-wire smart meters, three-phase four-wire smart meters ( The wireless communication module of the circular electric meter) is shared.

One side of the cover plate 40 is pivotally connected to the second side 113 of the box body 11 to cover the opening 110 of the box body 11, and the cover plate 40 corresponds to the first through hole 112 and extends forward with a hollow cylinder 41 The bottom surface of the hollow cylinder 41 is formed with a second through hole 411 aligned with the first through hole 112, and two opposite positioning grooves 413 are formed on the side wall 412 of the hollow cylinder 41; the cover plate 40 faces the opening of the box body 11. A protruding rib 42 extends from the periphery of 110. In this embodiment, the cover 40 is a transparent cover.

The waterproof rubber strip 50 is sandwiched between the box body 11 and the cover 40; in this embodiment, the waterproof rubber strip 50 is embedded in the periphery of the opening 110 of the box body 11, and the first perforation 112 is Located on the outside of the waterproof rubber strip 50; preferably, the box body 11 is formed with two parallel convex rings 114 on the periphery of the opening 110 for the waterproof rubber strip 50 to be embedded therein, and the convex ribs 42 of the cover plate 40 are aligned Between the two parallel road convex rings 114, when the cover plate 40 covers the box body 11, the convex rib 42 presses the waterproof rubber strip 50 to a sealing thickness.

The above-mentioned seal assembly 60 includes a screw 61, a positioning member 62, and a first seal element 63; wherein the screw 61 penetrates through the hollow cylinder 41 of the cover plate 40 and passes through the second through hole 411 and The first through hole 112 is finally screwed on the box body 11. The positioning member 62 is arranged on the screw path of the screw 61 and forms a limiting channel 621. When the thickness of the waterproof rubber strip 50 reaches a sealing thickness, the limiting channel 621 is aligned with the positioning grooves 413 to maintain The communicating space between the limiting channel 621 and the positioning grooves 413 is in a clear state; in this embodiment, the positioning member 62 is integrally formed with the screw 61, that is, the nut 611 of the screw 61 is formed with the positioning member 62 of the limit channel 621. The first sealing element 63 passes through the positioning slot 413 of the hollow cylinder 41 and the limiting channel 621 of the positioning member 62 for lead sealing; wherein the heights of the positioning slot 413 and the limiting channel 621 are the same as those of the limiting channel 621. The thickness of the ring 631 of the first sealing element 63 is matched.

Since the single-phase two-wire smart meter 1 may be installed outdoors or in the basement, the wireless communication module 30 with better communication quality will be selected according to the geographical location. After the communication module 30 is inserted into the box body 11, the operator then performs the lead sealing operation; at this time, the cover plate 40 is closed to the opening 110 of the box body 11, and the screw 61 of the lead sealing assembly 60 is aligned with the hollow column The second through hole 411 of the body 41 is screwed to the first through hole 112 of the box body 11 to lock the cover plate 40 on the box body 11; as shown in FIG. 3A, to ensure that the operator tightens the screw 61. The operator can confirm whether the limiting channel 621 of the nut 611 of the screw 61 is aligned with the positioning groove 413 of the hollow cylinder 41, when the limiting channel 621 of the nut 611 is aligned with the positioning of the hollow cylinder 41 Groove 413, as shown in FIG. 3B, since the height of the limiting channel 521 matches the thickness of the ring buckle 631 of the first sealing element 63, the operator can smoothly penetrate the ring buckle 631 through the positioning groove 413 The limit channel 621 is then buckled to complete the lead sealing operation; at this time, the rib 42 of the cover plate 40 will also tighten the waterproof rubber strip 50 to compress its thickness to the sealing thickness to ensure that the cover plate 40 is tightly sealed In the opening 110 of the box body 11; Moreover, since the first perforation 112 is located outside the waterproof rubber strip 50, there is no need to worry about the water droplets outside the box body 11 penetrating into the opening 110 of the box body 11 through the screw 61.

As shown in Figures 1 and 2, the above-mentioned power line connection terminal block 70 is arranged on the bottom surface of the housing 10 to connect the power line of the building (not shown in the figure) for electricity consumption measurement; and the power line connection terminal block 70 A screw hole 701 is formed on the front side; in order to ensure that the power line connection terminal block 70 and the power line connection are not exposed, the first decorative plate cover 71 or the second decorative plate 72 are then covered, and the lead sealing screw 73 is passed through the back Screwed on the screw hole 701 to lock the first or second plaque 71, 72 on the power line connection terminal base 70. Since the nut of the seal screw 73 is formed with a through hole 731 for a second The lead sealing element 74 is snapped onto it. The first plaque 71 is shorter than the second plaque 72, and is suitable for when the smart meter 1 is installed in a sheltered place. If the smart meter 1 is installed in an open outdoor place, in order to prevent rainwater from flowing along the power line pipe into the power line connection terminal block 70 , A longer second trim 72 can be used.

Please refer to FIG. 2 again, the box body 11 is further provided with an optical communication port 12, and the cover plate 40 corresponds to the optical communication port 12 and a magnetic chuck 43 is embedded; because the magnetic chuck 43 is embedded in the cover plate 40 Inside, it is avoided that the magnetic chuck 43 is arranged outside the cover plate 40 and gets damp and rusts.

Please refer to Figure 4, which is a three-dimensional exploded view of the second embodiment of the new single-phase two-wire smart meter 1a. The structure of the single-phase two-wire smart meter 1a is mostly the same as that of the first embodiment, but the The positioning member 62 of the lead seal assembly 60a is a sleeve, and the sleeve is formed with the limiting channel 621. As shown in FIG. 5A, the sleeve is inserted into the hollow cylinder 41 and then clamped on the inner side of the hollow cylinder 41, To cover the screw 61 exposed on the hollow cylinder nut 611; and as shown in FIG. 5B, when the screw 61 is firmly tightened, the nut 611 of the screw 61 will not interfere with the limiting channel 621 and the After the positioning grooves 413 are aligned with the connecting space, the clearance of the connecting space is maintained so that the operator can smoothly penetrate the loop buckle 631 through the positioning groove 413 into the limit channel 621 and then buckle to complete the lead sealing operation; The ribs 42 of the cover plate 40 will also tighten the waterproof rubber strip 50 and compress its thickness to a sealing thickness to ensure that the cover plate has an opening 110 that is tightly attached to the box body 11.

In summary, the single-phase two-wire smart meter of the present invention uses a wireless communication module. It does not need to reserve signal ports for external terminals to smoothly transmit meter billing information, and consider the importance of waterproofing. The single-phase two-wire smart meter is performing the wireless communication module inspection lead sealing operation. When the operator finally uses the lead sealing assembly, he only needs to tighten the screw, and the limit channel of the positioning part is connected to the positioning slot of the hollow cylinder. Align, at this time, the waterproof tape has been pressed to the sealing thickness to achieve sufficient waterproof effect, and the mutually aligned limit channels and positioning grooves can be used to buckle the lead sealing components; on the contrary, if the operator does not tighten the screws The screw not only fails to buckle the lead sealing element, but also means that the waterproof rubber strip has not reached the sealing thickness; therefore, the new lead sealing assembly allows the operator to lock the cover plate to the box body at the same time to ensure that the cover plate and the box The waterproof function between the bodies, and the final lead sealing operation.

The above are only the embodiments of the present invention and do not limit the present invention in any form. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the relevant technical field, Without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or modification into equivalent embodiments with equivalent changes, all content that does not deviate from the technical solution of the present invention shall be based on the technical essence of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the new technical solution.

1.1a: Smart meter 10: Shell 101: front side panel 11: Box body 110: opening 111: first side 112: first piercing 113: second side 20: Power metering unit 30: Wireless communication module 31: Shell 32: Protruding part 33: curved side 40: cover 41: Hollow cylinder 411: second piercing 412: Sidewall 413: positioning slot 42: convex rib 43: Magnetic chuck 50: Waterproof tape 60, 60a: Lead seal components 61: Screw 611: Nut 62: Positioning piece 621: Limit channel 63: The first seal component 631: ring buckle 70: Power line connection terminal block 701: screw hole 71: The first trim 72: second trim 73: Lead Sealing Screw 731: perforation 80: electric meter

Figure 1: A three-dimensional appearance view of the first embodiment of the new single-phase two-wire smart electric meter of the present invention. Figure 2: Partially exploded view of Figure 1. Figure 3A: A partial cross-sectional view of the screw in Figure 1 when the screw is not tightened. Figure 3B: A partial cross-sectional view of the screw in Figure 1 when it is tightened. Figure 4: A perspective view of the second embodiment of the new single-phase two-wire smart meter of the invention. Figure 5A: A partial cross-sectional view of the screw in Figure 4 when the screw is not tightened. Figure 5B: A partial cross-sectional view of the screw in Figure 4 when the screw is tightened. Figure 6: The appearance of a traditional mechanical single-phase two-wire electric meter.

1: Smart meter

10: Shell

11: Box body

40: cover

41: Hollow cylinder

43: Magnetic chuck

60: Lead seal components

61: Screw

63: The first seal component

631: ring buckle

72: second trim

73: Lead Sealing Screw

74: The second seal component

Claims (10)

A single-phase two-wire smart electric meter, including: A casing, a front side plate of which protrudes forward of a box body, and a first perforation is formed on the periphery of the opening of the box body and near the first side of the box body; An electric power metering unit is arranged in the housing; A wireless communication module is installed in the box and is electrically connected to the power metering unit; A cover plate, one side of which is pivotally connected to the second side of the box body, to cover the opening of the box body, the cover plate corresponds to the first perforation and extends forward with a hollow cylinder, and the bottom surface of the hollow cylinder is formed with a hollow cylinder Aligning with the second through hole of the first through hole, and forming two opposite positioning grooves on the side wall of the hollow cylinder; A waterproof rubber strip is sandwiched between the box body and the cover plate; and A lead seal assembly, which contains: A screw penetrates through the hollow cylinder of the cover plate, passes through the first through hole and the second through hole, and is screwed to the box body; A positioning member is arranged on the screw threading path and forms a limiting channel. When the thickness of the waterproof rubber strip reaches a sealing thickness, the limiting channel is aligned with the positioning grooves; and A first sealing element passes through the positioning groove of the hollow cylinder and the limiting passage of the positioning member for lead sealing; wherein the height of the positioning groove and the limiting passage is the same as the height of the first sealing element The thickness of the buckle is matched. The single-phase two-wire smart electric meter according to claim 1, wherein the positioning member is integrally formed with the screw, and the nut of the screw forms the limiting channel. The single-phase two-wire smart electric meter according to claim 1, wherein the positioning member is a sleeve formed with the limiting channel, and after being inserted into the hollow cylinder, the screw is exposed to the cover The nut of the hollow cylinder; wherein when the thickness of the waterproof rubber strip reaches the sealing thickness, the screw does not interfere with the communication space after the limit channel is aligned with the positioning grooves. The single-phase two-wire smart meter according to any one of claims 1 to 3, wherein the wireless communication module is a pluggable wireless communication module that is inserted in the box, and the wireless communication module The shell of the communication module extends toward the surface of the cover with a protruding part. The single-phase two-wire smart electric meter according to claim 4, wherein the housing of the wireless communication module has an arc-shaped side facing the first side of the box body. The single-phase two-wire smart electric meter according to any one of claims 1 to 3, wherein the bottom surface of the housing is provided with a power line connection terminal block, the front side of the power line connection terminal block is formed with a screw hole, and the housing The department further includes: A first trim cover to cover the power line connection terminal block; A seal screw for screwing the first trim cover to the screw hole of the power line connection terminal base, the seal screw forming a through hole; and A second seal element is fastened to the perforation of the seal screw. The single-phase two-wire smart electric meter according to claim 6, wherein the housing further includes a second decorative plate cover whose length is longer than the first decorative plate cover and can cover the first decorative plate cover. Lead sealing screws screw the first and second plaque covers to the screw holes of the power line connection terminal block. The single-phase two-wire smart meter according to any one of claims 1 to 3, wherein: The waterproof rubber strip is embedded in the periphery of the opening of the box body; and A convex rib is formed on the cover plate corresponding to the waterproof rubber strip to press the waterproof rubber strip. The single-phase two-wire smart electric meter according to claim 8, wherein the first perforation is located on the outer side of the waterproof rubber strip. The single-phase two-wire smart meter according to claim 8, wherein the first hole is The box is further provided with an optical communication port; and A magnetic chuck is embedded in the cover plate corresponding to the optical communication port.

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