Large-current metering box

Abstract

The utility model discloses a large-current metering box which comprises a box body, an electric energy meter, an installation frame, an intelligent molded case circuit breaker, a conductive copper bar and a mutual inductor, the front surface of the box body is provided with an upper window and a lower window, and the box body is internally provided with an isolation plate assembly communicated with the upper window. The internal space of the box body is divided into a first chamber and a second chamber which are isolated from each other by the isolation plate assembly, the first chamber is communicated with the upper window, and the second chamber is communicated with the lower window; the electric energy meter is arranged in the first cavity; the mounting frame is arranged in the second chamber and is positioned below the first chamber; the intelligent molded case circuit breaker is mounted on the mounting frame; the conductive copper bar is arranged in the second cavity, is positioned on the rear side of the intelligent molded case circuit breaker and is connected with the intelligent molded case circuit breaker; the mutual inductor is arranged on the conductive copper bar, and at least part of the area of the mutual inductor is located on the rear side of the first cavity and electrically connected with the electric energy meter. The large-current metering box is novel in structure, the electric energy meter suffers less electromagnetic interference, and the overall height of the box body is low.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy metering equipment, in particular to a large current metering box. Background Art

[0002] The high-current metering box includes a box body, in which are installed an electric energy meter, an intelligent plastic-sealed circuit breaker, a conductive copper busbar, a mutual inductor, a lightning arrester, etc. At present, the box body of the high-current metering box is often a single-chamber structure. The electric energy meter is easily affected by electromagnetic interference from other devices, resulting in inaccurate monitoring results. If the box body is simply divided into two chambers, the overall height of the high-current metering box will be too high, which will be inconvenient to transport and will increase the height requirements for the installation environment. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a large current metering box with small electromagnetic interference and low height.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a large current metering box, comprising:

[0005] A box body, wherein an upper window and a lower window are provided on the front of the box body, and an isolation plate assembly connected to the upper window is provided in the box body, wherein the isolation plate assembly divides the internal space of the box body into a first chamber and a second chamber that are isolated from each other, wherein the first chamber is connected to the upper window, and the second chamber is connected to the lower window;

[0006] An upper door panel, the upper door panel being rotatably connected to the box body and being used for opening and closing the upper window;

[0007] A lower door panel, the lower door panel being rotatably connected to the box body and being used for opening and closing the lower window;

[0008] an electric energy meter, the electric energy meter being disposed in the first chamber;

[0009] a mounting frame, the mounting frame being disposed in the second cavity and below the first cavity;

[0010] An intelligent molded case circuit breaker, the intelligent molded case circuit breaker being mounted on the mounting frame;

[0011] A conductive copper busbar, the conductive copper busbar being disposed in the second chamber, the conductive copper busbar being located at the rear side of the intelligent molded case circuit breaker and connected to the intelligent molded case circuit breaker;

[0012] A mutual inductor is provided on the conductive copper busbar, at least a portion of the mutual inductor is located at the rear side of the first cavity and is electrically connected to the electric energy meter.

[0013] In one embodiment, a grounding member is provided in the second chamber, and a lightning arrester and a grounding copper busbar are provided on the grounding member.

[0014] In one embodiment, the grounding member is located on one side of the intelligent molded case circuit breaker.

[0015] In one embodiment, a sensor is provided in the first chamber, and the sensor is used to detect the opening and closing status of the upper door panel.

[0016] In one embodiment, the box body includes a back panel, a top panel, a bottom panel, a partition bar and two side panels arranged opposite to each other, the top panel is respectively connected to the back panel and the two side panels, the bottom panel is respectively connected to the back panel and the two side panels, the back panel is connected to the two side panels, the partition bar connects the two side panels, and the partition bar is located between the upper window and the lower window.

[0017] In one embodiment, the isolation plate assembly is L-shaped as a whole, and the isolation plate assembly includes a connected bottom wall plate and a rear wall plate, the bottom wall plate is connected to the dividing strip and the two side plates, the rear wall plate is connected to the two side plates, at least part of the area of ​​the mutual inductor is located on the rear side of the rear wall plate, and the electric energy meter is fixedly mounted on the rear wall plate.

[0018] In one embodiment, a window is provided on the rear wall panel, and a cable connecting the electric energy meter and the mutual inductor passes through the window.

[0019] In one embodiment, a support assembly is further included. The support assembly is located in the second chamber, the support assembly connects the conductive copper busbar and the back plate, and the support assembly includes an insulator contacting the conductive copper busbar.

[0020] In one embodiment, the conductive copper busbar includes an ascending portion, a horizontal portion, and a descending portion vertically connected in sequence, the supporting assembly is connected to the ascending portion, the mutual inductor is provided on the horizontal portion, and the descending portion is connected to the intelligent molded case circuit breaker.

[0021] In one embodiment, the mounting frame is in the shape of a rectangular frame as a whole, and the mounting frame is fixedly connected to the two side panels.

[0022] The beneficial effects of the present invention are: the large current metering box has a novel structure, and uses an isolation plate assembly to separate the internal space of the box into a first chamber and a second chamber that are isolated from each other, and the electric energy meter is separately arranged in the first chamber, which greatly reduces the electromagnetic interference of other devices on the electric energy meter, and is conducive to ensuring the accuracy of the electric energy meter monitoring data. At the same time, at least part of the area of ​​the mutual inductor is arranged on the rear side of the first chamber, which effectively optimizes the layout of the devices in the box. Compared with the arrangement in which the entire area of ​​the second chamber is located below the first chamber, the overall height of the box can be reduced, thereby making the large current metering box convenient to store and transport, and reducing the height requirements of the large current metering box for the installation environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 This is a structural diagram of a high current metering box according to the first embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional view of a high current metering box according to the first embodiment of the present invention;

[0026] Figure 3 This is a structural diagram of part of the structure of the high current metering box of Example 1 of the present utility model.

[0027] Description of Figure Numbers:

[0028] 1. Box body; 11. First chamber; 111. Sensor; 12. Second chamber; 13. Back panel; 14. Top panel; 15. Bottom panel; 16. Separator strip; 17. Side panel;

[0029] 2. Install the door panel;

[0030] 3. Lower door panel;

[0031] 4. Electricity meter;

[0032] 5. Install the frame;

[0033] 6. Intelligent molded case circuit breaker;

[0034] 7. Conductive copper busbar; 71. Rising portion; 72. Horizontal portion; 73. Descending portion;

[0035] 8. Mutual inductor;

[0036] 9. Isolation panel assembly; 91. Bottom wall panel; 92. Rear wall panel; 93. Window;

[0037] 10. Grounding piece; 101. Lightning arrester; 102. Grounding copper busbar;

[0038] 20. Support assembly; 201. Insulator. DETAILED DESCRIPTION

[0039] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0043] In addition, if the word "and / or" appears throughout the text, it means that three parallel solutions are included. For example, "and / or" includes solutions, or solutions, or solutions that meet all of the requirements simultaneously. In addition, the technical solutions of various embodiments may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. If the combination of technical solutions is mutually contradictory or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0044] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0045] Example 1

[0046] Please refer to Figures 1 to 3 , Embodiment 1 of the present utility model is: a large current metering box, comprising a box body 1, an upper door panel 2, a lower door panel 3, an electric energy meter 4, a mounting frame 5, an intelligent molded case circuit breaker 6, a conductive copper bus 7 and a mutual inductor 8, an upper window and a lower window are provided on the front of the box body 1, an isolation plate assembly 9 connected to the upper window is provided in the box body 1, and the isolation plate assembly 9 divides the internal space of the box body 1 into a first chamber 11 and a second chamber 12 isolated from each other, the first chamber 11 is connected to the upper window, and the second chamber 12 is connected to the lower window; the upper door panel 2 is rotatably connected to the box body 1, and the upper door panel 2 is used to open and close the upper window; The lower door panel 3 is rotatably connected to the box body 1, and the lower door panel 3 is used to open and close the lower window; the electric energy meter 4 is arranged in the first chamber 11; the mounting frame 5 is arranged in the second chamber 12 and is located below the first chamber 11; the intelligent molded case circuit breaker 6 is installed on the mounting frame 5; the conductive copper bus 7 is arranged in the second chamber 12, and the conductive copper bus 7 is located at the rear side of the intelligent molded case circuit breaker 6 and is connected to the intelligent molded case circuit breaker 6; the mutual inductor 8 is arranged on the conductive copper bus 7, and at least part of the area of ​​the mutual inductor 8 is located at the rear side of the first chamber 11 and is electrically connected to the electric energy meter 4.

[0047] A grounding member 10 is provided in the second chamber 12. The grounding member 10 is located on one side of the intelligent molded case circuit breaker 6. A lightning arrester 101 and a grounding copper bus 102 are provided on the grounding member 10. The grounding member 10 can ground the box body 1 and the devices installed therein to prevent static electricity accumulation, which is conducive to ensuring the working stability of the large current metering box.

[0048] A sensor 111 is provided in the first chamber 11 , and the sensor 111 is used to detect the opening and closing status of the upper door panel 2 , so that the manager can know in time whether the upper door panel 2 is opened without reason, thereby reducing the occurrence of electricity theft incidents.

[0049] Specifically, the box body 1 includes a back panel 13, a top panel 14, a bottom panel 15, a dividing bar 16 and two side panels 17 arranged opposite to each other. The top panel 14 is respectively connected to the back panel 13 and the two side panels 17, and the bottom panel 15 is respectively connected to the back panel 13 and the two side panels 17. The back panel 13 is located on the back of the box body 1, and the back panel 13 is connected to the two side panels 17. The dividing bar 16 is located on the front of the box body 1, and the dividing bar 16 connects the two side panels 17. The dividing bar 16 is located between the upper window and the lower window, and can also be regarded as the dividing bar 16 separating the upper window and the lower window. In addition, the setting of the dividing bar 16 can also improve the structural stability of the overall structure of the box body 1.

[0050] In this embodiment, the isolation plate assembly 9 is L-shaped as a whole and includes a bottom wall plate 91 and a rear wall plate 92 connected to each other. The connection between the bottom wall plate 91 and the rear wall plate 92 is located at the lower end of the rear wall plate 92. The bottom wall plate 91 is connected to the partition bar 16 and the two side plates 17, and the rear wall plate 92 is connected to the two side plates 17. At least a portion of the mutual inductor 8 is located on the rear side of the rear wall plate 92, and the electric energy meter 4 is fixedly mounted on the rear wall plate 92. Specifically, a window 93 is provided on the rear wall plate 92, through which the cable connecting the electric energy meter 4 and the mutual inductor 8 passes.

[0051] The high-current metering box also includes a support assembly 20 located within the second chamber 12. The support assembly 20 connects the copper busbar 7 to the backplate 13 and includes an insulator 201 that contacts the copper busbar 7. The support assembly 20 effectively supports the copper busbar 7, addressing the issue of the long copper busbar 7 being prone to shaking.

[0052] The conductive copper busbar 7 includes an ascending portion 71, a horizontal portion 72, and a descending portion 73, which are vertically connected in sequence. The support assembly 20 is connected to the ascending portion 71, the mutual inductor 8 is disposed on the horizontal portion 72, and the descending portion 73 is connected to the intelligent molded case circuit breaker 6. In this embodiment, the horizontal portion 72 is located at the rear side of the first chamber 11.

[0053] The mounting frame 5 is in a rectangular frame shape as a whole, and is fixedly connected to the two side panels 17 .

[0054] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. High current metering box, characterized by: include A box body, wherein an upper window and a lower window are provided on the front of the box body, and an isolation plate assembly connected to the upper window is provided in the box body, wherein the isolation plate assembly divides the internal space of the box body into a first chamber and a second chamber that are isolated from each other, wherein the first chamber is connected to the upper window, and the second chamber is connected to the lower window; An upper door panel, the upper door panel being rotatably connected to the box body and being used for opening and closing the upper window; A lower door panel, the lower door panel being rotatably connected to the box body and being used for opening and closing the lower window; an electric energy meter, the electric energy meter being disposed in the first chamber; a mounting frame, the mounting frame being disposed in the second cavity and below the first cavity; An intelligent molded case circuit breaker, the intelligent molded case circuit breaker being mounted on the mounting frame; A conductive copper busbar, the conductive copper busbar being disposed in the second chamber, the conductive copper busbar being located at the rear side of the intelligent molded case circuit breaker and connected to the intelligent molded case circuit breaker; A mutual inductor is provided on the conductive copper busbar, at least a portion of the mutual inductor is located at the rear side of the first cavity and is electrically connected to the electric energy meter.

2. The high current metering box according to claim 1, characterized in that: A grounding piece is provided in the second chamber, and a lightning arrester and a grounding copper busbar are provided on the grounding piece.

3. The high current metering box according to claim 2, characterized in that: The grounding member is located on one side of the intelligent molded case circuit breaker.

4. The high current metering box according to claim 1, characterized in that: A sensor is provided in the first chamber, and the sensor is used to detect the opening and closing status of the upper door panel.

5. The high current metering box according to claim 1, characterized in that: The box body includes a back panel, a top panel, a bottom panel, a partition bar and two side panels arranged opposite to each other, the top panel is respectively connected to the back panel and the two side panels, the bottom panel is respectively connected to the back panel and the two side panels, the back panel is connected to the two side panels, the partition bar connects the two side panels, and the partition bar is located between the upper window and the lower window.

6. The high current meter box according to claim 5, characterized in that: The isolation plate assembly is L-shaped as a whole, and includes a connected bottom wall plate and a rear wall plate. The bottom wall plate is connected to the dividing strip and the two side plates, and the rear wall plate is connected to the two side plates. At least part of the area of ​​the mutual inductor is located on the rear side of the rear wall plate, and the electric energy meter is fixedly mounted on the rear wall plate.

7. The high current metering box according to claim 6, characterized in that: The rear wall plate is provided with a window, and the cable connecting the electric energy meter and the mutual inductor passes through the window.

8. The high current metering box according to claim 5, characterized in that: It also includes a support assembly, which is located in the second cavity, connects the conductive copper busbar and the back plate, and includes an insulator contacting the conductive copper busbar.

9. The high current metering box according to claim 8, characterized in that: The conductive copper busbar includes an ascending portion, a horizontal portion, and a descending portion that are vertically connected in sequence. The supporting assembly is connected to the ascending portion. The mutual inductor is arranged on the horizontal portion. The descending portion is connected to the intelligent molded case circuit breaker.

10. The high current metering box according to claim 5, characterized in that: The mounting frame is in the shape of a rectangular frame as a whole, and is fixedly connected to the two side panels.

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