CN112816750A - Electric energy meter with improve electric energy meter self-heating and to mutual-inductor performance influence - Google Patents
Electric energy meter with improve electric energy meter self-heating and to mutual-inductor performance influence Download PDFInfo
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- CN112816750A CN112816750A CN202110302073.6A CN202110302073A CN112816750A CN 112816750 A CN112816750 A CN 112816750A CN 202110302073 A CN202110302073 A CN 202110302073A CN 112816750 A CN112816750 A CN 112816750A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
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Abstract
The embodiment of the application discloses electric energy meter with improve electric energy meter self-heating and to mutual-inductor performance influence includes: a watch body; an electric energy meter assembly is arranged on the inner wall of the front surface of the meter body; the outer side wall of the meter body is provided with a mounting lug for fixing the electric energy meter on the inner wall of the metering box; the inner wall of the watch body close to the mounting lug is provided with a back plate; a heat conducting block penetrates through the center of the rear plate; one end of the heat conduction block, which is close to the electric energy meter assembly, is connected with a first heat conduction sheet; one end of the heat conducting block, which is far away from the electric energy meter component, is connected with a second heat transfer sheet; the back of the watch body is fixedly connected with a heat insulation frame; the second connecting piece is positioned in the heat insulation frame. The invention can prevent the heat generated by the electric energy meter from being transferred to the inside of the metering box, thereby effectively improving the influence of the self-heating of the electric energy meter on the performance of the mutual inductor.
Description
Technical Field
The application relates to the technical field of electric energy meters, in particular to an electric energy meter capable of improving influence of self-heating of the electric energy meter on performance of a mutual inductor.
Background
An electric energy meter is an instrument for measuring electric energy, also called watt-hour meter, fire meter, kilowatt hour meter, and is an instrument for measuring various electric quantities, and when the electric energy meter is used, it is noted that under the conditions of low voltage (not more than 500V) and small current (tens of amperes), the electric energy meter can be directly connected into a circuit for measurement. Under the condition of high voltage or large current, the electric energy meter cannot be directly connected with a circuit and needs to be matched with a voltage transformer or a current transformer for use.
For example, the electric energy meter with good heat dissipation disclosed in chinese patent CN208509515U is disposed by closely attaching the heat conducting plate of the heat dissipation device to the housing, and the heat dissipation device composed of the heat conducting plate and the heat dissipation plate can effectively dissipate heat of the electric energy meter according to the plurality of heat dissipation channels penetrating up and down to release heat generated when the electric energy meter is used, but the heat of the electric energy meter is finally released into the metering box, so that the temperature inside the metering box rises to affect the measurement accuracy and the service life of the electric energy meter inside the entire metering box and the mutual inductor.
Disclosure of Invention
The embodiment of the application provides an electric energy meter with improve electric energy meter self-heating and to mutual-inductor performance influence, can avoid inside the heat transfer that the electric energy meter produced reaches the batch meter, and then effectively improve the influence of electric energy meter self-heating to the mutual-inductor performance.
In view of the above, the present application provides an electric energy meter with improved influence of self-heating on transformer performance, comprising: a watch body;
an electric energy meter assembly is arranged on the inner wall of the front side of the meter body;
the outer side wall of the meter body is provided with a mounting lug for fixing the electric energy meter on the inner wall of the metering box;
the inner wall of the watch body close to the mounting lug is provided with a back plate;
a heat conducting block penetrates through the center of the rear plate;
one end of the heat conduction block, which is close to the electric energy meter assembly, is connected with a first heat conduction sheet;
one end of the heat conduction block, which is far away from the electric energy meter component, is connected with a second heat transfer sheet;
the back of the watch body is fixedly connected with a heat insulation frame;
the second connecting piece is positioned in the heat insulation frame.
Optionally, an end of the first heat transfer fin away from the heat conduction block is evenly distributed around the electric energy meter assembly.
Optionally, the number of the first heat transfer fins is three, and the first heat transfer fins are distributed in an array.
Optionally, one end of the heat insulation frame, which is far away from the watch body, is connected with a heat insulation rubber ring, and a cavity is formed in the heat insulation rubber ring.
Optionally, the mounting ears are L-shaped in cross-section;
the front surface of the mounting lug is provided with a mounting hole;
the mounting lug is close to the outer wall of the rear plate and is fixedly connected with the watch body and the rear plate through mounting nails.
Optionally, a window and a wiring port are arranged on the front face of the watch body;
the position of the window corresponds to the position of the electric energy meter component;
the wiring port is positioned below the window.
Optionally, the watch body is hinged with an end cover near the outer wall of the connection port.
Optionally, the cross section of the heat conduction block is rectangular.
Optionally, the heat conducting block is an aluminum-silicon alloy plate.
Optionally, the heat insulation frame and the rear plate are both made of heat insulation materials.
According to the technical scheme, the embodiment of the application has the following advantages: this electric energy meter includes the table body, back plate and electric energy meter subassembly, and back plate center department runs through and is provided with the heat conduction piece, and the one end that the heat conduction piece is close to the electric energy meter subassembly is connected with first heat transfer piece, and the one end that the electric energy meter subassembly was kept away from to the heat conduction piece is connected with the second heat transfer piece, and the back fixedly connected with of the table body separates the heat frame, and the second connection piece is located separates the heat frame. When the work of electric energy meter subassembly produced the heat, the heat can give off the internal portion of table, absorb by first heat transfer piece, because there is a temperature difference in the inside of the table body and outside, so the heat can transmit the inside of thermal-insulated frame along the conducting block, release by the second heat transfer piece, at this moment, the heat of thermal-insulated frame inside can directly transmit on the batch meter that links to each other with the table body, and give off by the outer wall of batch meter, can not directly transmit and lead to wholly generating heat to the batch meter is inside, and then effectively improved the influence of electric energy meter self-heating to the mutual-inductor performance.
Drawings
FIG. 1 is a schematic diagram of a front view angle orientation of an electric energy meter with improved effect of self-heating on transformer performance in an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a rear view direction structure of an electric energy meter with improved influence of self-heating on the performance of a transformer according to an embodiment of the present application;
FIG. 3 is a front view of an electric energy meter with improved effect of self-heating on transformer performance in an embodiment of the present application;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;
wherein the reference numerals are:
1-meter body, 2-window, 3-back plate, 4-wiring port, 5-end cover, 6-mounting lug, 7-heat conducting block, 8-electric energy meter component, 9-first heat transfer sheet, 10-second heat transfer sheet, 11-heat insulation frame, 12-heat insulation rubber ring, 601-mounting nail, 602-mounting hole.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The present application provides an embodiment of an electric energy meter with improved influence of self-heating on the performance of the transformer, and particularly refers to fig. 1, fig. 4, and fig. 5.
The electric energy meter with the function of improving the influence of self-heating of the electric energy meter on the performance of the transformer in the embodiment comprises: the table body 1, be provided with electric energy meter subassembly 8 on the positive inner wall of the table body 1, be provided with the installation ear 6 that is used for being fixed in the electric energy meter on the lateral wall of the table body 1, the inner wall that the table body 1 is close to installation ear 6 is provided with back plate 3, 3 central departments of back plate run through and are provided with heat conduction piece 7, the one end that heat conduction piece 7 is close to electric energy meter subassembly 8 is connected with first heat transfer piece 9, the one end that electric energy meter subassembly 8 was kept away from to heat conduction piece 7 is connected with second heat transfer piece 10, the thermal-insulated frame 11 of back fixedly connected with of the table body 1, the second connection piece is located thermal-.
It should be noted that: when 8 work of electric energy meter subassembly produced heat, the heat can give off inside the table body 1, absorb by first heat transfer piece 9, because there is a temperature difference in the inside of table body 1 and outside, so the heat can transmit the inside of thermal-insulated frame 11 along heat conduction piece 7, release by second heat transfer piece 10, at this moment, the inside heat of thermal-insulated frame 11 can directly transmit to the batch meter that links to each other with table body 1 on, and give off by the outer wall of batch meter, can not directly transmit to the inside whole generating heat that leads to of batch meter, and then effectively improved the influence of electric energy meter self-heating to the mutual-inductor performance.
The above embodiment of the electric energy meter with the effect of improving the self-heating of the electric energy meter on the performance of the transformer is the first embodiment, and the following embodiment of the electric energy meter with the effect of improving the self-heating of the electric energy meter on the performance of the transformer is the second embodiment, please refer to fig. 1 to 5 specifically.
The electric energy meter with the function of improving the influence of self-heating of the electric energy meter on the performance of the transformer in the embodiment comprises: the electric energy meter comprises a meter body 1, wherein an electric energy meter assembly 8 is arranged on the inner wall of the front side of the meter body 1, mounting lugs 6 for fixing the electric energy meter on the inner wall of a metering box are arranged on the outer side wall of the meter body 1, and specifically, the outer side wall of the meter body 1 is fixedly connected with four uniformly distributed mounting lugs 6; the inner wall that the table body 1 is close to installation ear 6 is provided with back plate 3, and 3 center departments of back plate run through and are provided with heat conduction piece 7, and the one end that heat conduction piece 7 is close to electric energy meter subassembly 8 is connected with first heat transfer piece 9, and the one end that electric energy meter subassembly 8 was kept away from to heat conduction piece 7 is connected with second heat transfer piece 10, and the back fixedly connected with of the table body 1 separates heat frame 11, and the second connection piece is located separates heat frame 11.
The end of the first heat transfer fin 9 far away from the heat conduction block 7 is uniformly distributed around the electric energy meter assembly 8, and the heat transfer effect is effectively improved by increasing the surface area of the first heat transfer fin 9.
The quantity of first heat transfer piece 9 is three, and is the array distribution, through setting up three first heat transfer piece 9, can absorb the heat better. It is understood that the number of the first heat transfer fins 9 may be plural, which is not limited herein, and the number of the second connection fins may be plural, which is not limited herein.
One end of the heat insulation frame 11, which is far away from the watch body 1, is connected with a heat insulation rubber ring 12, and a cavity is arranged inside the heat insulation rubber ring 12. It can be understood that: the 12 softer textures of thermal-insulated rubber ring, the inner wall that can laminate the batch meter better, the cavity can insulate against heat betterly again.
The cross-section of installation ear 6 is L shape, and mounting hole 602 has been seted up on the front of installation ear 6, and installation ear 6 is close to the outer wall of back plate 3 and passes through installation nail 601 and table body 1 and back plate 3 fixed connection, and installation nail 601 runs through behind the table body 1 and back plate 3 fixed connection promptly, and then will install ear 6, table body 1 and back plate 3 fixed together.
It should be noted that: can fix backplate 3 through using installation nail 601, and just can easily take out backplate 3 after loosening installation nail 601 to in overhaul, and the inside mounting hole 602 of seting up of installation ear 6 also can conveniently fix the inside at the batch meter, simple to operate with table body 1.
Specifically, the front of the meter body 1 is provided with a window 2 and a wiring port 4, the position of the window 2 corresponds to the position of the electric energy meter assembly 8, the wiring port 4 is located below the window 2, the window 2 can observe the numerical value displayed by the electric energy meter assembly 8, and the wiring port 4 is used for connecting a wire. The outer wall of the watch body 1 close to the wiring port 4 is hinged with an end cover 5.
The cross section of the heat conducting block 7 can be rectangular, the heat conducting block 7 can be an aluminum-silicon alloy plate, the aluminum-silicon alloy plate is low in manufacturing cost, and the heat conducting effect is good.
The heat insulation frame 11 and the rear plate 3 are made of heat insulation materials, so that heat in the heat insulation frame 11 can be effectively prevented from being transferred to the inside of the metering box, and the influence of self-heating of the electric energy meter on the performance of the mutual inductor is further improved.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. An electric energy meter with improved effect on transformer performance from self-heating, comprising: a watch body;
an electric energy meter assembly is arranged on the inner wall of the front side of the meter body;
the outer side wall of the meter body is provided with a mounting lug for fixing the electric energy meter on the inner wall of the metering box;
the inner wall of the watch body close to the mounting lug is provided with a back plate;
a heat conducting block penetrates through the center of the rear plate;
one end of the heat conduction block, which is close to the electric energy meter assembly, is connected with a first heat conduction sheet;
one end of the heat conduction block, which is far away from the electric energy meter component, is connected with a second heat transfer sheet;
the back of the watch body is fixedly connected with a heat insulation frame;
the second connecting piece is positioned in the heat insulation frame.
2. The electrical energy meter of claim 1, wherein the end of the first heat transfer fin remote from the heat conductive mass is evenly distributed around the electrical energy meter assembly.
3. The electric energy meter of claim 1, wherein the first heat transfer fins are three in number and are arranged in an array.
4. The electric energy meter capable of improving the influence of self-heating of the electric energy meter on the performance of the mutual inductor according to claim 1, wherein a heat insulation rubber ring is connected to one end, away from the meter body, of the heat insulation frame, and a cavity is formed in the heat insulation rubber ring.
5. The electric energy meter of claim 1, wherein the mounting ears are L-shaped in cross-section;
the front surface of the mounting lug is provided with a mounting hole;
the mounting lug is close to the outer wall of the rear plate and is fixedly connected with the watch body and the rear plate through mounting nails.
6. The electric energy meter with the function of improving the influence of self-heating of the electric energy meter on the performance of the mutual inductor according to claim 1, wherein the front surface of the meter body is provided with a window and a wiring port;
the position of the window corresponds to the position of the electric energy meter component;
the wiring port is positioned below the window.
7. The electric energy meter of claim 6, wherein the meter body has an end cap hinged to an outer wall of the connection port to improve the effect of self-heating of the meter on the performance of the transformer.
8. The electric energy meter of claim 1, wherein the heat conducting block is rectangular in cross-section.
9. The electric energy meter of claim 1, wherein the heat conducting block is an aluminum silicon alloy plate.
10. The electric energy meter with the function of improving the influence of self-heating of the electric energy meter on the performance of the mutual inductor according to claim 1, wherein the heat insulation frame and the back plate are both made of heat insulation materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110302073.6A CN112816750B (en) | 2021-03-22 | 2021-03-22 | Electric energy meter capable of improving influence of self-heating of electric energy meter on performance of mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110302073.6A CN112816750B (en) | 2021-03-22 | 2021-03-22 | Electric energy meter capable of improving influence of self-heating of electric energy meter on performance of mutual inductor |
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| Publication Number | Publication Date |
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| CN112816750A true CN112816750A (en) | 2021-05-18 |
| CN112816750B CN112816750B (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110302073.6A Active CN112816750B (en) | 2021-03-22 | 2021-03-22 | Electric energy meter capable of improving influence of self-heating of electric energy meter on performance of mutual inductor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113873803A (en) * | 2021-09-18 | 2021-12-31 | 科陆国际技术有限公司 | Composite heat dissipation structure and electronic electric energy meter box |
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| CN109455671A (en) * | 2018-12-29 | 2019-03-12 | 河南迪诺环保科技股份有限公司 | A kind of cooling radiator structure of ozone generator |
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| CN211235960U (en) * | 2019-09-05 | 2020-08-11 | 天津市双博电力工程有限公司 | Electric energy meter mounting base with heat dissipation function |
| CN211293012U (en) * | 2019-10-24 | 2020-08-18 | 杭州东龙电子科技有限公司 | Multifunctional direct current electric energy meter |
| CN212485097U (en) * | 2020-08-25 | 2021-02-05 | 保定浩腾电器制造有限公司 | Current transformer with long service life |
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2021
- 2021-03-22 CN CN202110302073.6A patent/CN112816750B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2342374Y (en) * | 1998-09-08 | 1999-10-06 | 万达集团股份有限公司 | Multifunctional high voltage power metering box |
| US20090243593A1 (en) * | 2007-03-29 | 2009-10-01 | Ian Frost | Electrical metering device |
| US20120044643A1 (en) * | 2010-08-18 | 2012-02-23 | General Electric Company | Heat management and reduction of high temperatures exposure to components inside energy meter |
| CN208818819U (en) * | 2018-09-14 | 2019-05-03 | 李军军 | A kind of remote electric energy meter calibration equipment based on wireless data transmission |
| CN109455671A (en) * | 2018-12-29 | 2019-03-12 | 河南迪诺环保科技股份有限公司 | A kind of cooling radiator structure of ozone generator |
| CN110445037A (en) * | 2019-08-23 | 2019-11-12 | 金华市秸和环保技术咨询有限公司 | A kind of outdoor low-voltage electric energy metering case protective device |
| CN211235960U (en) * | 2019-09-05 | 2020-08-11 | 天津市双博电力工程有限公司 | Electric energy meter mounting base with heat dissipation function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113873803A (en) * | 2021-09-18 | 2021-12-31 | 科陆国际技术有限公司 | Composite heat dissipation structure and electronic electric energy meter box |
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| CN112816750B (en) | 2023-04-28 |
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