Electric energy meter

Abstract

To provide a watt-hour meter in which cover mounting time is shortened.SOLUTION: A watt-hour meter comprises: a housing portion, provided in a case, for a rib for waterproofing the case; a recess for rib mounting, provided in a base; a cover-side sliding fixation portion provided in a cover and having a rib for mounting which fits into the recess for fib mounting, a cover-side sliding portion, and a fixed protrusion; a rib for waterproof, a sliding-side sliding portion, a sliding-side upper sliding fixation portion, a sliding-side lower sliding fixation portion, and recess which are provided in a sliding portion. The sliding-side sliding portion is fitted to the cover-side sliding portion thereby enabling the sliding portion to slide vertically, and the rib for mounting is inserted into the recess for rib mounting while a fixed protrusion is fitted to the sliding-side upper sliding fixation portion, thereafter the recess is depressed with a finger causing the fixed protrusion to come off from the sliding-side upper sliding fixation portion, and the fixed protrusion fits to the sliding-side lower sliding fixation portion, simultaneously the rib for waterproof gets into the housing portion for rib for case waterproofing and the cover is mounted.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an energy meter. [Background technology]

[0002] Conventionally, a watt-hour meter has a metering device, a communication device that is attached to the metering device and transmits the amount of electricity measured by the metering device to the outside, a terminal block, and a cover. Fig. 15(a) to Fig. 15(d) are process diagrams showing the procedure for assembling the metering device, the terminal block, the communication device, and the cover in a conventional watt-hour meter. Fig. 15(a) shows the direction in which the metering device is attached to the terminal block, Fig. 15(b) shows the state in which the terminal block is attached to the metering device, Fig. 15(c) shows the state in which the communication device is attached to the metering device, and Fig. 15(d) shows the watt-hour meter completed by attaching the cover to the terminal block. Figs. 16(a) and (b) show exploded views of a conventional watt-hour meter. Fig. 17(a) shows the appearance of a conventional communication device for a watt-hour meter, and Fig. 17(b) shows a metering device attachment part 24a provided on the communication device.

[0003] As shown in Figures 16(a) and 16(b), the metering device is composed of a circuit section 1 having a display section 1a that displays the amount of electricity, a communication device connection section 1b, an open / close detection section 1c, a conductor connection section 1d, a sensor connection section 1e, and a base mounting section 1f, a sensor section 2 that has a sensor side circuit connection section 2a that connects to the sensor connection section 1e of the circuit section 1 and measures the current, a conductor 3 that has a conductor side circuit connection section 3a that connects to the conductor connection section 1d of the circuit section 1 to supply power and a conductor side terminal connection section 3b that connects to the terminal side conductor connection section 9b of the terminal 9 of the terminal block, a base 4 that has a communication device connection section through hole 4a, a communication device mounting section 4b, a block mounting section 4c, an open / close detection section through hole 4d, a case mounting section 4e, a conductor through hole 4f, and a circuit mounting section 4g, and a case 5 that houses the above and has a display window 5a, a case side base mounting section 5b, a case waterproof rib storage section 5c, a case waterproof rib 5d, and a case side fixing screw mounting section 5e.

[0004] The communication device has a metering device connection part 21a and a metering device mounting part 24a, as shown in Fig. 17(a) and Fig. 17(b). The terminal block is composed of a block mounting screw 6, a conductor connection screw 7, an electric wire mounting screw 8, a terminal 9 having an electric wire storage part 9a and a terminal side conductor connection part 9b, a block 10 having a block side base mounting part 10a, a cover mounting female screw part 10b, an electric wire through hole 10c, a terminal mounting part 10d, a block side fixing screw mounting part 10e, and a block waterproof rib storage part 10f, as shown in Fig. 16(a) and Fig. 16(b). The cover is composed of a cover 11 having a detection convex part 11a and a cover waterproof rib 11b, and a cover mounting screw 12.

[0005] The procedure for assembling the metering device, communication device, terminal block, and cover thus configured to the watt-hour meter is as follows: First, as shown in Fig. 15(a), the metering device is placed above the terminal block and moved downward, and then, as shown in Fig. 15(b), the metering device is mated with the terminal block, and the conductor side terminal connection part 3b of the metering device is fixed to the terminal side conductor connection part 9b of the terminal 9 with the conductor connection screw 7 of the terminal block, and the block mounting part 4c of the metering device is fixed to the block side base mounting part 10a of the terminal block with the block mounting screw 6, thereby mounting the metering device to the terminal block.

[0006] At this time, the case waterproof rib 5d of the case 5 is stored in the block waterproof rib storage portion 10f of the block 10. Thereafter, as shown in Fig. 15(c), the weighing device mounting portion 24a of the communication device is fitted into the communication device mounting portion 4b of the weighing device base 4, and the weighing device connection portion 21a of the communication device is connected to the communication device connection portion 1b of the circuit unit 1 through the communication device connection portion through hole 4a of the weighing device base 4, thereby mounting the communication device to the weighing device.

[0007] Thereafter, as shown in FIG. 15(d), the cover waterproof rib of the cover 11 is inserted into the case waterproof rib storage portion 5c of the case 5, and the cover mounting screw 12 provided on the cover 11 is attached to the cover mounting female screw portion 10b of the block 10, thereby assembling the watthour meter. When replacing the metering device by reusing the installed terminal block, first, the cover mounting screw 12 is loosened from the old watthour meter and the new watthour meter to remove the cover 11, and the watthour meter is transported to a nearby location for storage, the metering device mounting portion 24a is removed from the communication device connection portion 1b to remove the communication device, and the watthour meter is transported to a nearby location for storage, and the block mounting screw 6 and the conductor connection screw 7 of the terminal block are loosened to remove the metering device, and the watthour meter is transported to a nearby location for storage. Next, the new watthour meter, the new communication device, and the new cover are attached to the old terminal block to complete the replacement of the watthour meter. Thus, when replacing the watt-hour meter, the screw loosening operation must be performed twice when removing the cover, and the screw tightening operation must be performed once when attaching the cover.

[0008] As an example of reference, there is an electricity meter that does not require disconnecting the power supply side power supply conductors and the load side power supply conductors that are connected to the terminal block, and allows the power supply control device to be attached and detached easily and safely. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Patent No. 4991340 Summary of the Invention [Problem to be solved by the invention]

[0010] When replacing an electricity meter, the cover mounting screws must be loosened and then tightened, which lengthens the work time and increases the labor costs.

[0011] The present invention provides a watt-hour meter that can shorten the work time for attaching a watt-hour meter cover and reduce installation work costs. [Means for solving the problem]

[0012] In order to solve the above problems, claim 1 of the present invention provides a metering device having a case and a base, a communication device attached to the metering device and transmitting an amount of electric power metered by the metering device to an outside, a terminal block attached to the metering device and connected to an electric wire, and a cover covering the metering device, the communication device and the terminal block and having a slide portion, the case being provided with a case waterproof rib storage portion, the base being provided with a rib mounting recess, the cover being provided with a mounting rib that fits into the rib mounting recess, a cover side sliding portion and a cover side sliding and fixing portion having a snap-fit ​​structure having a fixing protrusion, the slide portion being provided with a waterproof rib, a slide side sliding portion and a slide side upper portion. a cover side sliding fixed portion, a slide side lower sliding fixed portion, and a recess, the slide side sliding part is engaged with the cover side sliding part to allow the slide part to slide up and down, the mounting rib is inserted into the rib mounting recess with the fixing convex part engaged with the slide side upper sliding fixed part, and then the recess of the slide part is pushed upward with a finger, whereby the upper sliding fixed part presses the fixing convex part and the cover side sliding fixed part is deflected, the fixing convex part comes off the slide side upper sliding fixed part, the fixing convex part engages with the slide side lower sliding fixed part, and at the same time the waterproof rib is inserted into the case waterproof rib storage portion to attach the cover.

[0013] The invention of claim 2 comprises a metering device having a case, a base, and a slide portion, a communication device attached to the metering device and transmitting the amount of electric power metered by the metering device to the outside, a terminal block attached to the metering device and connected to an electric wire, and a cover covering the metering device, the communication device, and the terminal block, wherein the case is provided with a case waterproof rib storage section, a case side sliding section, a case side upper sliding and fixing section, and a case side lower sliding and fixing section, the base is provided with a rib mounting recess and a deformation recess, the slide section is provided with a waterproof rib, a slide side sliding section, a slide side sliding and fixing section having a snap-fit ​​structure with a fixing protrusion, and a recess, and the cover is provided with an attachment section. An attachment rib and a fixing recess are provided, the slide side sliding part is engaged with the case side sliding part to allow the slide part to slide up and down, and with the fixing convex part engaged with the case side upper sliding fixed part, the attachment rib is inserted into the rib attachment recess and then the recess of the slide part is pressed downward with a finger, whereby the fixing convex part is pressed against the case side upper sliding fixed part and the slide side sliding fixed part is deflected towards the deformation recess, the fixing convex part comes off the case side upper sliding fixed part, the fixing convex part engages with the case side lower sliding fixed part, and at the same time the waterproof rib engages with the fixing recess, thereby attaching the cover.

[0014] The invention of claim 3 includes a metering device having a case and a base, a communication device attached to the metering device and configured to transmit to the outside an amount of electric power metered by the metering device, a terminal block attached to the metering device and connected to an electric wire, and a cover covering the metering device, the communication device, and the terminal block and configured with a slide portion and a spring, the case being provided with a case waterproof rib storage portion, the base being provided with a rib mounting recess, the cover being provided with a mounting rib that fits into the rib mounting recess, a cover side sliding portion, and a spring recess into which the spring is inserted, the sliding portion being provided with a waterproof rib, a slide side sliding portion, and a spring recess into which the spring is inserted. The cover has a spring abutment portion that abuts against the spring, and a recess, the slide side sliding portion is fitted to the cover side sliding portion to allow the slide portion to slide up and down, and by pressing the recess of the slide portion downward with a finger, the spring abutment portion bends the spring, so that the upper surface of the waterproof rib becomes flush with the upper surface of the mounting rib, and after the mounting rib is inserted into the rib mounting recess, the finger is released from the recess of the slide portion, so that the slide portion is pushed up by the restoring force of the spring, and the waterproof rib is inserted into the case waterproof rib storage portion, thereby attaching the cover.

[0015] The invention of claim 4 provides a metering device having a case, a base, a slide portion, and a spring, a communication device attached to the metering device and configured to transmit to an external device an amount of electric power metered by the metering device, a terminal block attached to the metering device and connected to an electric wire, and a cover for covering the metering device, the communication device, and the terminal block, wherein the case is provided with a case waterproof rib storage portion, a case side sliding portion, and a spring recess for inserting the spring, the base is provided with a rib mounting recess, the slide portion is provided with a waterproof rib, a slide side sliding portion, The cover is provided with a spring abutment portion and an open abutment surface that abuts against the spring, an attachment rib and a fixing recess are provided on the cover, the slide side sliding portion is engaged with the case side sliding portion to allow the slide portion to slide up and down, and the open abutment surface is pushed upward by the upper surface of the attachment rib, so that the spring abutment portion bends the spring, and at the same time as the attachment rib is inserted into the rib attachment recess, the slide portion is pushed down by the restoring force of the spring, and the waterproof rib engages with the fixing recess, thereby attaching the cover.

[0016] The invention of claim 5 is characterized in that a seal mounting portion is provided on the cover, a seal portion is attached to the seal mounting portion, a seal sliding recess and a sealing recess are provided on the slide portion, the slide portion is slid to the lower end to store the seal portion in the slide side sliding portion, and then the mounting rib is inserted into the rib mounting recess, and the slide portion is pushed up, so that the waterproof rib is inserted into the case waterproof rib storage portion, and at the same time, the sealing portion passes through the seal sliding recess and appears in the sealing recess, a sealing cap is attached to the sealing portion, and the sealing cap is fitted into the sealing recess to fix and seal the slide portion.

[0017] The invention of claim 6 is characterized in that a seal mounting portion is provided on the cover, a seal portion is attached to the seal mounting portion, a sealing recess is provided on the sliding portion, and while the sliding portion is slid to the upper end, the mounting rib is inserted into the rib mounting recess and then the sliding portion is pushed down, so that the waterproof rib engages with the fixing recess and at the same time the upper and lower ends of the seal mounting portion coincide with the upper and lower ends of the sealing recess, respectively, and the sealing cap is attached to the sealing portion, so that the sealing cap engages with the seal mounting portion and the sealing recess to fix and seal the sliding portion. Effect of the Invention

[0018] According to the inventions of claims 1 and 2, the cover can be attached and removed by sliding the slide part, which reduces the work time compared to the current product.

[0019] According to the inventions of claims 3 and 4, compared to claims 1 and 2 in which the sliding portion is slid with a finger, the closed state is always maintained by the spring, making it possible to prevent forgetting to close the door.

[0020] According to the inventions of claims 5 and 6, the container can be sealed, thereby preventing tampering. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is an assembled perspective view of a watt-hour meter according to a first embodiment of the present invention. [Diagram 2] 1A and 1B are an assembly sectional view and a partial sectional view of a watt-hour meter according to a first embodiment of the present invention; [Diagram 3] 1 is a perspective view of a base, a cover, and a sliding portion of an electricity meter according to a first embodiment of the present invention. [Figure 4] FIG. 11 is an assembled perspective view of a watt-hour meter according to a second embodiment of the present invention. [Diagram 5] 5A and 5B are an assembly sectional view and a partial sectional view of a watt-hour meter according to a second embodiment of the present invention. [Figure 6]FIG. 11 is a perspective view of a case, a base, a cover, and a sliding portion of an electricity meter according to a second embodiment of the present invention. [Figure 7] 13A and 13B are a perspective view and a partial cross-sectional view of a cover of a watt-hour meter according to a third embodiment of the present invention. [Figure 8] FIG. 11 is a perspective view of a cover and a sliding portion of an electricity meter according to a third embodiment of the present invention. [Figure 9] 13 is an assembly perspective view and a partial cross-sectional view of a watt-hour meter according to a fourth embodiment of the present invention. FIG. [Figure 10] FIG. 11 is a perspective view of a case and a sliding portion of an electricity meter according to a fourth embodiment of the present invention. [Figure 11] 13 is an assembly perspective view and a partial cross-sectional view of a watt-hour meter according to a fifth embodiment of the present invention. FIG. [Figure 12] 13A and 13B are a perspective view and a partial cross-sectional view of a cover and a sliding portion of an electricity meter according to a fifth embodiment of the present invention. [Figure 13] 13 is an assembly perspective view and a partial cross-sectional view of a watt-hour meter according to a sixth embodiment of the present invention. FIG. [Figure 14] 13A and 13B are a perspective view and a partial cross-sectional view of a cover and a sliding portion of an electricity meter according to a sixth embodiment of the present invention. [Figure 15] FIG. 1 is a perspective view of a conventional watt-hour meter. [Figure 16] FIG. 1 is an exploded view of a conventional watt-hour meter. [Figure 17] FIG. 1 is a perspective view of a conventional communication device for an electricity meter. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a watt-hour meter according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0023] (First embodiment) Fig. 1 is an assembled perspective view of an electricity meter according to a first embodiment of the present invention. Fig. 1(a) shows the direction in which a cover with a sliding part fixed to the lower end is attached to the metering device, Fig. 1(b) shows the state in which the cover is attached to the metering device, and Fig. 1(c) shows the assembled electricity meter with the sliding part slid upward.

[0024] Fig. 2 shows an assembled cross-sectional view and a partial cross-sectional view of the watt-hour meter according to the first embodiment of the present invention. Fig. 2(a) is a vertical cross-sectional view of the watt-hour meter shown in Fig. 1(b). Fig. 2(b) is a vertical cross-sectional view of the watt-hour meter shown in Fig. 1(c). Fig. 2(c) is a horizontal cross-sectional view of the right side of the watt-hour meter shown in Fig. 2(a). Fig. 2(e) is a horizontal cross-sectional view of the right side of the watt-hour meter shown in Fig. 2(b). Fig. 2(d) is a horizontal cross-sectional view of the right side showing the process from Fig. 2(c) to Fig. 2(e) and showing how the cover-side sliding fixing part is bent.

[0025] Fig. 3 is a perspective view of the base, cover, and slide part of the electricity meter according to the first embodiment of the present invention. Fig. 3(a) shows a perspective view of the base, Fig. 3(b) and (c) show perspective views of the cover, and Fig. 3(d) and (e) show perspective views of the slide part.

[0026] The electricity meter includes a metering device having a case 5 and a base 4A, a communication device (upper case 23 and lower case 24 shown in FIG. 1(a)) that is attached to the metering device and transmits the amount of electricity measured by the metering device to the outside, a terminal block that is attached to the metering device and connects to an electric wire, and a cover 11A that covers the metering device, the communication device and the terminal block and has a sliding portion 101.

[0027] As shown in FIG. 16(a), case 5 is provided with waterproof rib storage sections 5c on the front side and both left and right side sides inside the lower opening.

[0028] As shown in FIG. 3(a), the base 4A has rib attachment recesses 4A1 provided on the front and both outer left and right side surfaces.

[0029] As shown in Figures 3(b) and 3(c), the cover 11A is provided with mounting ribs 11A1 on the upper back surface and on the inside of both left and right sides so as to fit into the rib mounting recesses 4A1 of the base 4A, cover side sliding portions 11A2 on the front surface and on the outside of both left and right sides, and cover side sliding fixing portions 11A4 with a snap-fit ​​structure having fixing protrusions 11A3 on both left and right sides.

[0030] As shown in Figures 3(d) and 3(e), the sliding portion 101 has waterproof ribs 101a on the upper front and both left and right side surfaces that can be stored in the case waterproof rib storage portion 5c of the case 5, slide-side sliding portions 101b provided on the back surface and on the inside of both left and right side surfaces to fit into the cover-side sliding portion 11A2 of the cover 11A to slide the sliding portion 101 up and down, slide-side upper sliding fixing portion 101c and slide-side lower sliding fixing portion 101d provided on the inside of both left and right side surfaces to fit into the fixing convex portion 11A3 of the cover-side sliding fixing portion 11A4 of the cover 11A to fix the sliding portion 101, and recesses 101e provided on the outside of both left and right side surfaces to slide the sliding portion 101 up and down with a finger.

[0031] Next, the procedure for assembling the cover and the sliding part of the first embodiment thus configured will be described. First, the cover side sliding part 11A2 of the cover 11A shown in Fig. 3(b) is fitted to the sliding side sliding part 101b of the sliding part 101 shown in Fig. 3(d) to assemble the sliding part 101 to the cover 11A and make the sliding part 101 slidable up and down.

[0032] Next, the fixing protrusions 11A3 of the cover side sliding fixing part 11A4 provided on both the left and right side surfaces of the cover 11A shown in Figure 3(b) are engaged with the slide side upper sliding fixing part 101c provided on the inside of both the left and right side surfaces of the slide part 101 shown in Figure 3(e) to fix the slide part 101 to the lower end, and the upper surface of the waterproof rib 101a of the slide part 101 and the upper surface of the mounting rib 11A1 of the cover 11A are brought into the same plane.

[0033] Next, a procedure for attaching a cover to the metering device and assembling the watt-hour meter after assembling the metering device, communication device, and terminal block will be described. First, as shown in Fig. 1(a) to Fig. 1(b), Fig. 2(a), and Fig. 2(c), the mounting rib 11A1 of the cover 11A is inserted into the rib mounting recess 4A1 of the base 4A.

[0034] Next, as shown in FIG. 2(d), when the recess 101e of the slide portion 101 is pushed upward with a finger, the slide side upper sliding fixed portion 101c presses the fixed protrusion 11A3, causing the cover side sliding fixed portion 11A4 to bend inward, and the fixed protrusion 11A3 of the cover side sliding fixed portion 11A4 of the cover 11A comes off from the slide side upper sliding fixed portion 101c of the slide portion 101.

[0035] Furthermore, when the recess 101e of the slide portion 101 is pushed upward with a finger, as shown in Figures 1(c), 2(b) and 2(e), the fixing protrusion 11A3 of the cover side sliding fixing portion 11A4 of the cover 11A engages with the slide side lower sliding fixing portion 101d of the slide portion 101, and at the same time, the waterproof rib 101a of the slide portion 101 is inserted into the case waterproof rib storage portion 5c of the case 5, thereby allowing the cover 11A to be attached and assembled into the electricity meter.

[0036] Furthermore, when removing the cover 11A, pressing the recess 101e of the slide portion 101 downward with a finger causes the slide-side lower sliding fixed portion 101d to press the fixing protrusion 11A3, causing the cover-side sliding fixed portion 11A4 to bend inward, causing the fixing protrusion 11A3 of the cover-side sliding fixed portion 11A4 of the cover 11A to come off the slide-side lower sliding fixed portion 101d of the slide portion 101, and the fixing protrusion 11A3 of the cover-side sliding fixed portion 11A4 of the cover 11A to engage with the slide-side upper sliding fixed portion 101c of the slide portion 101, fixing the slide portion 101 to the lower end, so that the upper surface of the mounting rib 11A1 of the cover 11A and the upper surface of the waterproof rib 101a of the slide portion 101 are flush with each other, and the cover 11A can be removed.

[0037] Thus, according to the watt-hour meter of the first embodiment, cover 11A can be attached and detached by sliding of slide portion 101, and therefore the work time can be shortened, compared to the current product.

[0038] Second embodiment Fig. 4 is an assembled perspective view of an electricity meter according to a second embodiment of the present invention. Fig. 4(a) shows the direction in which a cover is attached to a metering device with a sliding part fixed to the upper end, Fig. 4(b) shows the state in which the cover is attached to the metering device, and Fig. 4(c) shows the assembled electricity meter with the sliding part slid downward.

[0039] Fig. 5 shows an assembled cross-sectional view and a partial cross-sectional view of a watt-hour meter according to a second embodiment of the present invention. Fig. 5(a) is a vertical cross-sectional view of the watt-hour meter shown in Fig. 4(b). Fig. 5(b) is a vertical cross-sectional view of the watt-hour meter shown in Fig. 4(c). Fig. 5(c) is a horizontal cross-sectional view of the right side of the watt-hour meter shown in Fig. 5(a). Fig. 5(e) is a horizontal cross-sectional view of the right side of the watt-hour meter shown in Fig. 5(b). Fig. 5(d) is a horizontal cross-sectional view of the right side showing the process from Fig. 5(c) to Fig. 5(e) and showing how the slide-side sliding fixing part is deflected.

[0040] Fig. 6 is a perspective view of a case, a base, a cover, and a sliding part of an energy meter according to a second embodiment of the present invention. Fig. 6(a) shows a perspective view of the case, Fig. 6(b) shows a perspective view of the base, Fig. 6(c) shows a perspective view of the cover, and Fig. 6(d) shows a perspective view of the sliding part.

[0041] The electricity meter includes a metering device having a case 5B, a base 4B and a sliding portion 201, a communication device (upper case 23 and lower case 24 shown in FIG. 4(a)) attached to the metering device and transmitting the amount of electricity measured by the metering device to the outside, a terminal block attached to the metering device and connected to an electric wire, and a cover 11B covering the metering device, the communication device and the terminal block.

[0042] As shown in FIG. 6(a), case 5B has a case waterproof rib storage section 5Bc on the front side and both left and right side sides of the inside of the lower opening, and a case side sliding section 5B1, a case side upper sliding and fixing section 5B2, and a case side lower sliding and fixing section 5B3 on both left and right side sides of the inside of the lower opening.

[0043] As shown in FIG. 6(b), the base 4B is provided with rib attachment recesses 4B1 on the front and on the outer left and right sides, and deformation recesses 4B2 on the outer left and right sides.

[0044] As shown in FIG. 6(c), the cover 11B is provided with mounting ribs 11B1 and fixing recesses 11B5 on the upper back surface and on the inside of both left and right sides so as to fit into the rib mounting recesses 4B1 of the base 4B.

[0045] As shown in FIG. 6(d), the sliding portion 201 has waterproof ribs 201a on the upper front and both left and right side surfaces that can be stored in the case waterproof rib storage portion 5Bc of the case 5B and can fit into the fixing recesses 11B5 of the cover 11B, slide-side sliding portions 201b provided on the outside of both left and right side surfaces to fit into the case-side sliding portion 5B1 of the case 5B to slide the sliding portion 201 up and down, slide-side sliding and fixing portions 201g of a snap-fit ​​structure having fixing convex portions 201f provided on both left and right side surfaces to fit into the case-side upper sliding and fixing portion 5B2 and the case-side lower sliding and fixing portion 5B3 of the case 5B to fix the sliding portion 201, and recesses 201e provided on the outside of both left and right side surfaces to slide the sliding portion 201 up and down with a finger.

[0046] Next, the procedure for assembling the case and the sliding part of the second embodiment thus configured will be described. First, the sliding part 201b of the sliding part 201 shown in Fig. 6(d) is fitted to the case side sliding part 5B1 of the case 5B shown in Fig. 6(a) to assemble the sliding part 201 to the case 5B and make the sliding part 201 slidable up and down.

[0047] Next, as shown in FIG. 6(d), the fixing convex portions 201f of the slide-side sliding fixing portions 201g provided on both the left and right side surfaces of the slide portion 201 are engaged with the case-side upper sliding fixing portions 5B2 provided on both the left and right side surfaces inside the lower opening of the case 5B shown in FIG. 6(a) to fix the slide portion 201 to the upper end, so that the upper surface of the waterproof rib 201a of the slide portion 201 and the upper surface of the mounting rib 11B1 of the cover 11B are flush with each other.

[0048] Next, a procedure for attaching the cover to the metering device and assembling the watt-hour meter after assembling the metering device, communication device, and terminal block will be described. First, as shown in Fig. 4(a) to Fig. 4(b), Fig. 5(a), and Fig. 5(c), the mounting rib 11B1 of the cover 11B is inserted into the rib mounting recess 4B1 of the base 4B.

[0049] 5(d), when the recess 201e of the slide portion 201 is pressed downward with a finger, the fixing protrusion 201f is pressed by the case-side upper sliding fixed portion 5B2, causing the slide-side sliding fixed portion 201g to bend inward, and the fixing protrusion 201f of the slide-side sliding fixed portion 201g of the slide portion 201 comes off the case-side upper sliding fixed portion 5B2 of the case 5B. At this time, the deformation recess 4B2 of the base 4B prevents the slide-side sliding fixed portion 201g from coming into contact with the base 4B when it is bent inward.

[0050] Furthermore, when the recess 201e of the slide portion 201 is pressed downward with a finger, as shown in Figures 4(c), 5(b), and 5(e), the fixing protrusion 201f of the slide-side sliding fixing portion 201g of the slide portion 201 engages with the case-side lower sliding fixing portion 5B3 of the case 5B, and at the same time, the waterproof rib 201a of the slide portion 201 engages with the fixing recess 11B5 of the cover 11B, thereby allowing the cover 11B to be attached and assembled into the electricity meter.

[0051] Even when the sliding portion 201 is pressed down, the waterproof rib 201a of the sliding portion 201 is stored in the case waterproof rib storage portion 5Bc of the case 5B. Therefore, the waterproof rib 201a of the sliding portion 201 is located above the lower end of the outer wall of the case, so that waterproofness can be maintained.

[0052] Furthermore, when removing the cover 11B, by pushing the recess 201e of the slide portion 201 upward with a finger, the fixing protrusion 201f is pressed by the case side lower sliding fixed portion 5B3, causing the slide side sliding fixed portion 201g to bend inward, and the fixing protrusion 201f of the slide side sliding fixed portion 201g of the slide portion 201 comes off the case side lower sliding fixed portion 5B3 of the case 5B, and the fixing protrusion 201f of the slide side sliding fixed portion 201g of the slide portion 201 engages with the case side upper sliding fixed portion 5B2 of the case 5B, fixing the slide portion 201 to the upper end, so that the upper surface of the mounting rib 11B1 of the cover 11B and the lower surface of the waterproof rib 201a of the slide portion 201 are flush with each other, and the cover 11B can be removed.

[0053] Thus, according to the watt-hour meter of the second embodiment, the cover 11B can be attached and detached by the sliding of the slide portion 201, and therefore the work time can be shortened, compared to the current product.

[0054] (Third embodiment) Fig. 7 is a perspective view and a partial cross-sectional view of a cover of an electricity meter according to a third embodiment of the present invention. Fig. 7(a) shows the cover with the sliding part pressed down, Fig. 7(b) shows the cover with the sliding part pressed up by a spring, Fig. 7(c) shows a horizontal cross-sectional view of the periphery of the spring on the right side of the cover shown in Fig. 7(a), and Fig. 7(d) shows a horizontal cross-sectional view of the periphery of the spring on the right side of the cover shown in Fig. 7(b).

[0055] 8A and 8B are perspective views of a cover and a sliding portion of an electricity meter according to a third embodiment of the present invention, in which Fig. 8(a) shows a perspective view of the cover, and Fig. 8(b) shows a perspective view of the sliding portion.

[0056] The electricity meter includes a metering device having a case 5 and a base 4A, a communication device (upper case 23 and lower case 24 shown in FIG. 1(a)) that is attached to the metering device and transmits the amount of electricity measured by the metering device to the outside, a terminal block that is attached to the metering device and connects to an electric wire, and a cover 11C that covers the metering device, the communication device and the terminal block, and has a slide portion 301 and a spring 302.

[0057] The watthour meter according to the third embodiment is different from the watthour meter according to the first embodiment in that a spring 302 is added. As shown in FIG. 8(a), a cover 11C is provided with mounting ribs 11C1 on the back surface and on the inside of both left and right sides of the upper part so as to fit into the rib mounting recesses 4A1 of the base 4A, cover side sliding portions 11C2 on the front surface and on the outside of both left and right sides, and spring recesses 11C6 on both left and right sides into which the spring 302 is inserted. As shown in FIG. 8(b), the slide portion 301 is provided with The watt-hour meter has a waterproof rib 301a on the front and both left and right sides at the top that can be stored in the case waterproof rib storage section 5c of the case 5, slide-side sliding sections 301b provided on the back and on the inside of both left and right sides to fit into the cover-side sliding section 11C2 of the cover 11C and slide the slide section 301 up and down, spring abutment sections 301h on both left and right sides that abut against the upper section of the spring 302, and recesses 301e provided on the outside of both left and right sides to slide the slide section 301 down with a finger. The other configurations are the same as those of the watt-hour meter according to the first embodiment.

[0058] Next, the procedure for assembling the cover and the sliding part of the third embodiment thus configured will be described. First, the spring 302 is inserted into the spring recesses 11C6 on both the left and right sides of the cover 11C shown in Fig. 8(a), and the sliding side sliding part 301b of the sliding part 301 shown in Fig. 8(b) is engaged with the cover side sliding part 11C2 of the cover 11C to assemble the sliding part 301 and the spring 302 to the cover 11C and make the sliding part 301 slidable up and down. At this time, the spring 302 abuts against the spring abutment part 301h of the sliding part 301, and the sliding part 301 is always pushed up as shown in Figs. 7(b) and 7(d).

[0059] Next, the procedure for attaching the cover to the metering device and assembling it to the watt-hour meter after assembling the metering device, communication device, and terminal block will be described. First, the recess 301e of the sliding part 301 is pressed downward with a finger, so that the spring abutment part 301h of the sliding part 301 bends the spring 302, and the upper surface of the waterproof rib 301a of the sliding part 301 and the upper surface of the mounting rib 11C1 of the cover 11C are flush with each other, as shown in Fig. 7(a) and Fig. 7(c).

[0060] Next, after inserting the mounting rib 11C1 of the cover 11C into the rib mounting recess 4A1 of the base 4A, the finger is released from the recess 301e of the slide portion 301, whereby the restoring force of the spring 302 pushes up the slide portion 301, as shown in Figure 7(d), and the waterproof rib 301a of the slide portion 301 is inserted into the case waterproof rib storage portion 5c of the case 5, thereby attaching the cover 11C and assembling the electricity meter.

[0061] Furthermore, when removing the cover 11C, the recess 301e of the slide portion 301 is pressed downward with a finger so that the waterproof rib 301a of the slide portion 301 comes out of the case waterproof rib storage portion 5c of the case 5, and the upper surface of the waterproof rib 301a of the slide portion 301 and the upper surface of the mounting rib 11C1 of the cover 11C become flush with each other, and then the cover 11C can be removed.

[0062] Thus, according to the electricity meter of the third embodiment, compared to the first and second embodiments in which the sliding portions 101, 201 are slid with a finger, the spring 302 ensures that the meter is kept closed, thereby preventing the meter from forgetting to close.

[0063] (Fourth embodiment) Fig. 9 is a perspective view and a partial cross-sectional view of a cover of an electricity meter according to a fourth embodiment of the present invention. Fig. 9(a) shows a state in which the cover is attached to a metering device with the slide part pushed up, Fig. 9(b) shows the assembled electricity meter with the slide part pushed down by a spring, Fig. 9(c) shows a horizontal cross-sectional view of the periphery of the spring on the right side of the electricity meter shown in Fig. 9(a), and Fig. 9(d) shows a horizontal cross-sectional view of the periphery of the spring on the right side of the electricity meter shown in Fig. 9(b).

[0064] Fig. 10 is a perspective view of a case and a sliding portion of an electricity meter according to a fourth embodiment of the present invention, Fig. 10(a) shows a perspective view of the case, and Fig. 10(b) shows a perspective view of the sliding portion.

[0065] The electricity meter includes a metering device having a case 5D, a base 4B, a sliding portion 401 and a spring 402, a communication device attached to the metering device and transmitting the amount of electricity measured by the metering device to the outside, a terminal block attached to the metering device and connected to an electric wire, and a cover 11B covering the metering device, the communication device and the terminal block.

[0066] The watthour meter according to the fourth embodiment is different from the watthour meter according to the second embodiment in that a spring 402 is added. As shown in FIG. 10(a), the case 5D is provided with a case waterproof rib storage section 5Dc on the front side and both left and right side surfaces of the inside of the lower opening, and a case side sliding section 5D1 and a spring recess 5D4 for inserting the spring 402 are provided on both left and right side surfaces of the inside of the lower opening. As shown in FIG. 10(b), the sliding section 401 is provided with a spring recess 5D4 for inserting the spring 402 and a case side sliding section 5D1 and a spring recess 5D4 for inserting the spring 402 on the front side and both left and right side surfaces of the upper part of the case 5D. There are provided a waterproof rib 401a that can be stored in the case waterproof rib storage portion 5Dc and can be fitted into the fixing recess 11B5 of the cover 11B, slide side sliding portions 401b provided on the outside of both left and right side surfaces to fit into the case side sliding portion 5D1 of the case 5D and slide the slide portion 401 up and down, spring abutment portions 401h that abut against the lower portion of the spring 402 on both left and right side surfaces, and open abutment surfaces 401i provided on the front and the outside of both left and right side surfaces to slide the slide portion 401 up with a finger. The other configurations are the same as those of the watthour meter according to the second embodiment.

[0067] Next, the procedure for assembling the case and the sliding part of the fourth embodiment thus configured will be described. First, the spring 402 is inserted into the spring recesses 5D4 on both the left and right sides of the case 5D shown in Fig. 10(a), and the sliding side sliding part 401b of the sliding part 401 shown in Fig. 10(b) is engaged with the case side sliding part 5D1 of the case 5D to assemble the sliding part 401 and the spring 402 to the case 5D and make the sliding part 401 slidable up and down. At this time, the spring 402 abuts against the spring abutment part 401h of the sliding part 401, and the sliding part is always pressed down.

[0068] Next, a procedure for attaching the cover to the metering device in a state where the metering device, the communication device, and the terminal block are assembled will be described. First, the open contact surface 401i of the slide portion 401 is pushed up by the upper surface of the mounting rib 11B1 of the cover 11B, and the spring contact portion 401h of the slide portion 401 bends the spring 402, so that the upper surface of the mounting rib 11B1 of the cover 11B, which is flush with the open contact surface 401i of the slide portion 401, becomes flush with the upper surface of the rib mounting recess 4B1 of the base 4B, and then the mounting rib 11B1 of the cover 11B is inserted into the rib mounting recess 4B1 of the base 4B as shown in Fig. 9(a) and Fig. 9(c).

[0069] Thereafter, the slide portion 401 is pressed down by the restoring force of the spring 402, and as shown in Figures 9(b) and 9(d), the waterproof rib 401a of the slide portion 401 engages with the fixing recess 11B5 of the cover 11B, thereby allowing the cover 11B to be attached and assembled into the electricity meter.

[0070] Furthermore, when removing the cover 11B, the open abutment surface 401i of the slide portion 401 is pushed upward with a finger, so that the spring abutment portion 401h of the slide portion 401 bends the spring 402, the waterproof rib 401a of the slide portion 401 is inserted into the case waterproof rib storage portion 5Dc of the case 5D, and the open abutment surface 401i of the slide portion 401 is flush with the upper surface of the rib mounting recess 4B1 of the base 4B, which is flush with the upper surface of the mounting rib 11B1 of the cover 11B, and the open abutment surface 401i of the slide portion 401 is flush with the upper surface of the rib mounting recess 4B1 of the base 4B, and the cover 11B can be removed.

[0071] Thus, according to the electricity meter of the fourth embodiment, compared to the first and second embodiments in which the sliding portions 101, 201 are slid with a finger, the spring 402 ensures that the meter is kept closed, thereby preventing the meter from forgetting to close.

[0072] Fifth embodiment Fig. 11 shows an assembled perspective view and a partial cross-sectional view of an electricity meter according to a fifth embodiment of the present invention. Fig. 11(a) shows a state in which a cover with a sliding part fixed to the lower end is attached to the metering device, Fig. 11(b) shows a state in which the sliding part is slid upward and a sealing part appears at the position of the sealing recess, Fig. 11(c) shows a sealed electricity meter with a sealing cap attached to the sealing part shown in Fig. 11(b), and Fig. 11(d) shows a vertical cross-sectional view of the periphery of the sealing part of the electricity meter shown in Fig. 11(c).

[0073] Fig. 12 shows a perspective view and a cross-sectional view of a cover and a sliding part of an electricity meter according to a fifth embodiment of the present invention. Fig. 12(a) shows a perspective view of the cover with a sealing part attached, Fig. 12(b) shows a vertical cross-sectional view of the sealing part and its periphery of the cover shown in Fig. 12(a), and Fig. 12(c) shows a perspective view of the sliding part.

[0074] The watthour meter according to the fifth embodiment is different from the watthour meter according to the first embodiment in that a sealing portion 503 is added. As shown in FIG. 12(a), the cover 11E is provided with mounting ribs 11E1 on the back surface and on the inside of both left and right sides of the upper part so as to fit into the rib mounting recess 4A1 of the base 4A, cover side sliding portions 11E2 provided on the front surface and on the outside of both left and right sides, a cover side sliding fixing portion 11E4 having a snap-fit ​​structure having fixing protrusions 11E3 on both left and right sides, and a seal mounting portion 11E7 on the front surface to which the sealing portion 503 is attached. As shown in FIG. 12(c), the slide portion 501 is provided with waterproof ribs that can be stored in the case waterproof rib storage portion 5c of the case 5 on the front surface and both left and right sides of the upper part. 501a, slide side sliding parts 501b provided on the back surface and the inside of both left and right sides to slide the slide part 501 up and down by fitting with the cover side sliding part 11E2 of the cover 11E, slide side upper sliding fixing part 501c and slide side lower sliding fixing part 501d provided on the inside of both left and right sides to fix the slide part 501 by fitting with the fixing protrusion 11E3 of the cover side sliding fixing part 11E4 of the cover 11E, recesses 501e provided on the outside of both left and right sides to slide the slide part 501 up and down with a finger, seal sliding recesses 501j through which the sealing part 503 passes when the slide part 501 slides up and down, and a sealing recess 501k as a recess for attaching the sealing cap 504 are provided. The sealing recess 501k can be fitted into the seal mounting part 11E7. The other configurations are the same as those of the watthour meter according to the first embodiment.

[0075] Next, the procedure for assembling the cover and the sliding part of the fifth embodiment thus configured will be described. First, the sliding part 501b of the sliding part 501 shown in Fig. 12(c) is fitted to the cover side sliding part 11E2 of the cover 11E in which the sealing part 503 shown in Fig. 12(a) is attached to the seal attachment part 11E7, so that the sliding part 501 is assembled to the cover 11E and the sliding part 501 can slide up and down.

[0076] Next, the fixing protrusions 11E3 of the cover side sliding fixing parts 11E4 provided on both the left and right sides of the cover 11E are fitted into the slide side lower sliding fixing parts 501d provided on the inside of both the left and right sides of the slide part 501 to fix the slide part 501 to the lower end, so that the upper surface of the waterproof rib 501a of the slide part 501 and the upper surface of the mounting rib 11E1 of the cover 11E are flush with each other. At this time, the sealing part 503 is housed in the slide side sliding part 501b of the slide part 501.

[0077] Next, a procedure for attaching a cover to the metering device after assembling the metering device, communication device, and terminal block to form a watt-hour meter will be described. First, as shown in Fig. 11(a), the mounting rib 11E1 of the cover 11E is inserted into the rib mounting recess 4A1 of the base 4A.

[0078] Next, as shown in FIG. 11(b), when the recess 501e of the slide portion 501 is pushed upward with a finger, the slide-side upper sliding fixed portion 501c presses the fixing protrusion 11E3, causing the cover-side sliding fixed portion 11E4 to bend inward, and the fixing protrusion 11E3 of the cover-side sliding fixed portion 11E4 of the cover 11E comes off the slide-side upper sliding fixed portion 501c of the slide portion 501, and the fixing of the cover-side sliding fixed portion 11E4 of the cover 11E is released. When the fixed convex portion 11E3 engages with the slide side lower sliding fixed portion 501d of the slide portion 501 and the waterproof rib 501a of the slide portion 501 is inserted into the case waterproof rib storage portion 5c of the case 5, the sealing recess 501k is stored within the seal mounting portion 11E7 and the sealing portion 503 passes through the seal sliding recess 501j and is positioned at the position of the sealing recess 501k of the slide portion 501, as shown in Figure 11(b).

[0079] Thereafter, as shown in FIG. 11(c), by attaching a sealing cap 504 to the sealing portion 503, the sealing cap 504 fits into the sealing recess 501k of the sliding portion 501, thereby fixing and sealing the sliding portion 501, thereby preventing tampering.

[0080] Furthermore, in the electricity meter of the third embodiment, by adding a sealing portion, providing a seal mounting portion on the cover, and providing a seal sliding recess and a sealing recess on the sliding portion, it is possible to seal and prevent tampering, just like the electricity meter of the fifth embodiment.

[0081] Sixth embodiment Fig. 13 shows an assembled perspective view and a partial cross-sectional view of a watt-hour meter according to a sixth embodiment of the present invention. Fig. 13(a) shows a state in which a cover with a sliding part fixed to the lower end is attached to the metering device, Fig. 13(b) shows a state in which the sliding part is slid downward, Fig. 13(c) shows a sealed watt-hour meter with a sealing cap attached to the sealing part shown in Fig. 13(b), and Fig. 13(d) shows a vertical cross-sectional view of the periphery of the sealing part of the watt-hour meter shown in Fig. 13(c).

[0082] Fig. 14 shows a perspective view and a cross-sectional view of a cover and a sliding part of an electricity meter according to a sixth embodiment of the present invention. Fig. 14(a) shows a perspective view of the cover with a sealing part attached, Fig. 14(b) shows a vertical cross-sectional view of the sealing part and its periphery of the cover shown in Fig. 14(a), and Fig. 14(c) shows a perspective view of the sliding part.

[0083] The watthour meter according to the sixth embodiment is different from the watthour meter according to the second embodiment in that a sealing portion 503 is added. As shown in FIG. 14(a), the cover 11F is provided with an attachment rib 11F1, a fixing recess 11F5, and a seal attachment portion 11F7 for attaching the sealing portion 503 and engaging with the sealing cap 504 on the back surface and the inside of both left and right sides of the upper portion so as to engage with the rib attachment recess 4B1 of the base 4B. As shown in FIG. 14(c), the slide portion 601 is provided with a waterproof rib that can be accommodated in the case waterproof rib accommodation portion 5Bc of the case 5B and can be engaged with the fixing recess 11B5 of the cover 11B on the front surface and both left and right sides of the upper portion. The watt-hour meter has a snap-fit ​​structure having a rib 601a for fastening, a slide-side sliding portion 601b provided on the outer side of both left and right sides to fit into the case-side sliding portion 5B1 of the case 5B and slide the slide portion 601 up and down, a slide-side sliding fixing portion 601g having a fastening protrusion 601f provided on both left and right sides to fit into the case-side upper sliding fixing portion 5B2 and the case-side lower sliding fixing portion 5B3 of the case 5B and fix the slide portion 601, a recess 601e provided on the outer side of both left and right sides to slide the slide portion 601 up and down with a finger, and a sealing recess 601k as a recess for attaching the sealing cap 504. The other configurations are the same as those of the watt-hour meter according to the second embodiment.

[0084] Next, the procedure for assembling the case and the sliding part of the sixth embodiment thus configured will be described. First, the sliding part 601b of the sliding part 601 shown in Fig. 14(c) is fitted to the case side sliding part 5B1 of the case 5B shown in Fig. 6(a) to assemble the sliding part 601 to the case 5B and make the sliding part 601 slidable up and down.

[0085] Next, the fixing protrusions 601f of the slide-side sliding fixing parts 601g provided on both the left and right sides of the slide part 601 are engaged with the case-side upper sliding fixing parts 5B2 provided on both the left and right sides of the inside of the lower opening of the case 5B, fixing the slide part 601 to the upper end, and bringing the upper surface of the waterproof rib 601a of the slide part 601 into the same plane as the upper surface of the mounting rib 11F1 of the cover 11F.

[0086] Next, a procedure for attaching a cover to the metering device after assembling the metering device, communication device, and terminal block to form an electricity meter will be described. First, as shown in Fig. 13(a), the mounting rib 11F1 of the cover 11F, in which the sealing portion 503 is attached to the seal mounting portion 11F7, is inserted into the rib mounting recess 4B1 of the base 4B.

[0087] 13(b), when the recess 601e of the slide portion 601 is pressed downward with a finger, the fixing protrusion 601f is pressed by the case-side upper sliding fixed portion 5B2, the slide-side sliding fixed portion 601g is bent inward, and the fixing protrusion 601f of the slide-side sliding fixed portion 601g of the slide portion 601 is disengaged from the case-side upper sliding fixed portion 5B2 of the case 5B. At this time, the deformation recess 4B2 of the base 4B prevents the slide-side sliding fixed portion 601g from coming into contact with the base 4B when it is bent inward.

[0088] Furthermore, when the recess 601e of the slide portion 601 is pressed downward with a finger, as shown in FIG. 13(b), the fixing convex portion 601f of the slide side sliding fixing portion 601g of the slide portion 601 engages with the case side lower sliding fixing portion 5B3 of the case 5B, and the waterproof rib 601a of the slide portion 601 engages with the fixing recess 11F5 of the cover 11F, and at the same time, the upper and lower ends of the seal mounting portion 11F7 of the cover 11F coincide with the upper and lower ends, respectively, of the sealing recess 601k of the sealing recess of the slide portion 601.

[0089] Thereafter, as shown in FIG. 13(c), by attaching a sealing cap 504 to the sealing portion 503, the sealing cap 504 is fitted into the seal mounting portion 11F7 of the cover 11F and the sealing recess 601k of the sliding portion 601, thereby fixing and sealing the sliding portion 601 and preventing tampering.

[0090] In addition, in the electricity meter of the fourth embodiment, by adding a sealing portion, providing a seal mounting portion on the cover, and providing a sealing recess on the sliding portion, it is possible to seal it to prevent tampering, just like the electricity meter of the sixth embodiment. [Explanation of symbols]

[0091] 1 Circuit section 1a Display section 1b Communication device connection section 1c Open / close detector 1d Conductor connection 1e Sensor connection 1f Base mounting part 2 Sensor section 2a Sensor side circuit connection 3 Conductors 3a Conductor side circuit connection part 3b Conductor side terminal connection part 4,4A,4B Base 4a, 4Aa, 4Ba Communication device connection through hole 4b, 4Ab, 4Bb Communication device mounting section 4c, 4Ac, 4Bc Block mounting part 4d, 4Ad, 4Bd Open / close detection hole 4e, 4Ae, 4Be case mounting part 4f, 4Af, 4Bf Conductor through holes 4g, 4Ag, 4Bg circuit mounting part 4A1, 4B1 Rib mounting recess 4B2 Deformation recess 5,5B,5D Case 5a, 5Ba, 5Da Display window 5b, 5Bb, 5Db Case side base mounting part 5c, 5Bc, 5Dc Case waterproof rib storage area 5d, 5Bd, 5Dd Case Waterproof Ribs 5e, 5Be, 5De Case side fixing screw mounting part 5B1, 5D1 Case side sliding part 5B2 Case side upper sliding fixed part 5B3 Case side lower sliding fixed part 5D4 Spring recess 6 Block mounting screws 7 Conductor Connection Screw 8 Wire mounting screw 9 Terminals 9a Wire storage section 9b Terminal side conductor connection part 10 Blocks 10a Block side base mounting part 10b Female thread for mounting cover 10c Wire hole 10d Terminal mounting part 10e Block side fixing screw mounting part 10f Block waterproof rib storage section 11, 11A, 11B, 11C, 11E, 11F Cover 11a, 11Aa, 11Ba, 11Ca, 11Ea, 11Fa Detection convex part 11b Cover waterproof rib 11A1, 11B1, 11C1, 11E1, 11F1 Mounting rib 11A2, 11C2, 11E2 Cover side sliding part 11A3, 11E3 Fixed protrusion 11A4, 11E4 Cover side sliding fixed part 11B5, 11F5 Fixing recess 11C6 Spring recess 11E7, 11F7 Seal mounting part 12 Cover mounting screw 21 Cable 21a Metering device connection 22 LED light guide 23 Upper case 24 Lower case 24a Metering device mounting part 101,201,301,401,501,601 Slide section 101a, 201a, 301a, 401a, 501a, 601a Waterproof ribs 101b, 201b, 301b, 401b, 501b, 601b Slide side sliding part 101c, 501c Slide side upper sliding fixing part 101d, 501d Slide side lower sliding fixed part 101e, 201e, 301e, 501e, 601e recess 201f, 601f Fixed protrusion 201g, 601g Slide side sliding fixed part 301h, 401h Spring contact part 401i Open contact surface 501j Seal sliding recess 501k,601k Sealing recess 302,402 Spring 503 Sealing Department 504 Sealing Cap

Claims

1. The power supply device includes a metering device having a case and a base, a communication device attached to the metering device and configured to transmit an amount of electric power measured by the metering device to an outside, a terminal block attached to the metering device and configured to connect to an electric wire, and a cover that covers the metering device, the communication device, and the terminal block and has a sliding portion; a case waterproof rib storage section is provided on the case, a rib mounting recess is provided on the base, a cover side sliding and fixing section having a snap-fit ​​structure having a mounting rib that fits into the rib mounting recess, a cover side sliding section, and a fixing protrusion is provided on the cover, and a waterproof rib, a slide side sliding section, a slide side upper sliding and fixing section, a slide side lower sliding and fixing section, and a recess are provided on the slide section, The cover is attached by inserting the mounting rib into the rib mounting recess with the slide-side sliding part engaged with the cover-side sliding part and the mounting rib into the rib mounting recess, and then pushing the recess of the slide part upward with a finger, so that the mounting convex part comes off the slide-side upper sliding fixed part and the mounting convex part engages with the slide-side lower sliding fixed part, and at the same time, the waterproof rib is inserted into the case waterproof rib storage part.

2. The power supply device includes a metering device having a case, a base, and a slide portion, a communication device attached to the metering device and configured to transmit an amount of electric power measured by the metering device to an outside, a terminal block attached to the metering device and configured to connect to an electric wire, and a cover for covering the metering device, the communication device, and the terminal block. a case waterproof rib housing section, a case side sliding section, a case side upper sliding and fixing section, and a case side lower sliding and fixing section are provided on the case; a rib mounting recess and a deformation recess are provided on the base; a waterproof rib, a slide side sliding section, a slide side sliding and fixing section having a snap-fit ​​structure having a fixing protrusion and a recess are provided on the slide section; a mounting rib and a fixing recess are provided on the cover; a case-side sliding portion that is fitted to the case-side sliding portion to allow the slide portion to slide up and down, and a case-side upper sliding fixed portion that is fitted to the case-side upper sliding fixed portion, and a mounting rib is inserted into the rib mounting recess, and then the recess of the slide portion is pressed downward with a finger, whereby the mounting convex portion is pushed by the case-side upper sliding fixed portion, causing the slide-side sliding fixed portion to bend toward the deformation recess, and the mounting convex portion comes off the case-side upper sliding fixed portion, and the mounting convex portion fits into the case-side lower sliding fixed portion, and at the same time, the waterproof rib fits into the fixing recess, thereby attaching the cover.

3. The power supply device includes a metering device having a case and a base, a communication device attached to the metering device and configured to transmit an amount of electric power measured by the metering device to an outside, a terminal block attached to the metering device and configured to connect to an electric wire, and a cover covering the metering device, the communication device, and the terminal block and configured to have a slide portion and a spring, a waterproof rib storage section is provided on the case, a rib mounting recess is provided on the base, a mounting rib that fits into the rib mounting recess, a cover side sliding section, and a spring recess into which the spring is inserted are provided on the cover, and a waterproof rib, a slide side sliding section, a spring abutment section that abuts against the spring, and a recess are provided on the slide section, This electricity meter is characterized in that the slide side sliding part is engaged with the cover side sliding part to allow the slide part to slide up and down, and by pressing the recess of the slide part downward with a finger, the spring abutment part bends the spring so that the upper surface of the waterproof rib becomes flush with the upper surface of the mounting rib, and after the mounting rib is inserted into the rib mounting recess, by releasing the finger from the recess of the slide part, the slide part is pushed up by the restoring force of the spring, and the waterproof rib is inserted into the case waterproof rib storage part, thereby attaching the cover.

4. The power supply device includes a metering device having a case, a base, a slide portion, and a spring, a communication device attached to the metering device and configured to transmit to an outside an amount of electric power measured by the metering device, a terminal block attached to the metering device and configured to connect to an electric wire, and a cover for covering the metering device, the communication device, and the terminal block; the case is provided with a waterproof rib storage section, a case side sliding section, and a spring recess for inserting the spring; the base is provided with a rib mounting recess; the slide section is provided with a waterproof rib, a slide side sliding section, a spring abutment section that abuts against the spring, and an open abutment surface; and the cover is provided with a mounting rib and a fixing recess; The cover is attached by fitting the slide side sliding part to the case side sliding part, allowing the slide part to slide up and down, and by pushing the open abutment surface upward with the upper surface of the mounting rib, the spring abutment part bends the spring, and at the same time, the mounting rib is inserted into the rib mounting recess, and the slide part is pushed down by the restoring force of the spring, so that the waterproof rib fits into the fixing recess, thereby attaching the cover.

5. 4. The electricity meter according to claim 1 or claim 3, characterized in that a seal mounting portion is provided on the cover, a seal portion is attached to the seal mounting portion, a seal sliding recess and a sealing recess are provided on the slide portion, and the slide portion is slid to the lower end to store the seal portion within the slide side sliding portion, and then the mounting rib is inserted into the rib mounting recess and the slide portion is pushed up, so that the waterproof rib is inserted into the case waterproof rib storage portion and at the same time, the sealing portion passes through the seal sliding recess and appears in the sealing recess, and a sealing cap is attached to the sealing portion and the sealing cap is fitted into the sealing recess to fix and seal the slide portion.

6. 5. The electricity meter of claim 2, further comprising: a seal mounting portion provided on the cover; a seal portion attached to the seal mounting portion; a sealing recess provided on the sliding portion; and, with the sliding portion slid to its upper end, inserting the mounting rib into the rib mounting recess and then pushing down the sliding portion, so that the waterproof rib engages with the fixing recess and at the same time the upper and lower ends of the seal mounting portion coincide with the upper and lower ends of the sealing recess, respectively. A seal cap is attached to the sealing portion, so that the seal cap engages with the seal mounting portion and the sealing recess to fix and seal the sliding portion.

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