CN107976649B - Foreign matter sound collection structure in electric energy meter - Google Patents
Foreign matter sound collection structure in electric energy meter Download PDFInfo
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- CN107976649B CN107976649B CN201711174296.9A CN201711174296A CN107976649B CN 107976649 B CN107976649 B CN 107976649B CN 201711174296 A CN201711174296 A CN 201711174296A CN 107976649 B CN107976649 B CN 107976649B
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- 238000001514 detection method Methods 0.000 claims abstract description 26
- 239000011358 absorbing material Substances 0.000 claims abstract description 11
- 239000011359 shock absorbing material Substances 0.000 claims abstract description 5
- 230000035939 shock Effects 0.000 claims description 19
- 238000013016 damping Methods 0.000 claims description 12
- 239000011111 cardboard Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 206010013954 Dysphoria Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
The invention discloses a foreign matter sound collection structure in an electric energy meter, which comprises an upper cover component and a lower cover component; the inner cavities of the upper cover component and the lower cover component are both provided with sound-absorbing and shock-absorbing materials, and the upper cover component and the lower cover component are connected to form a closed space; a foreign matter upper tray, a foreign matter lower tray and a tail cover screw stop assembly are arranged in the closed space; the foreign matter upper tray is fixedly connected with the upper cover component; the foreign matter lower tray is arranged at the lower end of the foreign matter upper tray and is fixedly connected with the lower cover assembly; the electric energy meter to be tested is fixed between the foreign matter upper tray and the foreign matter lower tray; the tail cap screw stop assembly is fixed on the upper cover assembly. The beneficial effects obtained by the invention are as follows: the electric energy meter is subjected to full-closed detection, so that external environment noise is isolated, places where the electric energy meter is likely to loosen are shielded, and the detection reliability is improved; the detection time is shortened, the utilization rate of the electric energy meter equipment is improved, and the electric energy meter foreign matter sound detection work which is rapid, efficient, safe and reliable is realized.
Description
Technical Field
The invention relates to the technical field of electric energy meter detection, in particular to a foreign matter sound collection structure in an electric energy meter.
Background
The sound detection of foreign matters in the existing electric energy meter generally adopts a manual listening mode. Generally, in a verification workshop, a tester shakes the meter to listen to sound, and because the noise in the verification workshop is high, the detection is inaccurate due to the fact that hearing errors occur easily due to external interference in the process of shaking foreign matters. Or, the meter is shaken manually in a mute shielded room to listen to the sound, and the shielded room is closed, so that the personnel are easy to cause psychological anxiety, dysphoria, and the like in the shielded room for a long time, and the hearing error is easy to cause inaccurate detection.
The sound detection technology is mature day by day, and the adoption sound detection technology is used for electric energy meter foreign matter sound detection more and more probably, but is subject to the characteristics of electric energy meter itself and the various influence of electric energy meter production line environment noise source, and how fix the electric energy meter and the problem such as the external interference sound among the electric energy meter foreign matter sound detection process carries out the screen needs to be solved urgently.
In order to solve the above problems, a set of sound collection structure for foreign matters in an electric energy meter with high integration, high expandability and high efficiency is urgently needed to realize the automation of the detection of foreign matters in the electric energy meter.
Disclosure of Invention
In view of the above defects in the prior art, the invention aims to provide a sound collection structure for foreign matters in an electric energy meter, which can perform totally-enclosed detection on the electric energy meter, isolate external environmental noise, shield the possible loose places of the electric energy meter and improve the detection reliability; the detection time is shortened, the production efficiency and the utilization rate of electric energy meter equipment are improved, and the electric energy meter foreign body sound detection work is fast, efficient, safe and reliable.
The invention aims to realize the technical scheme that the structure for collecting the sound of the foreign matters in the electric energy meter comprises the following components: an upper cover assembly and a lower cover assembly;
the inner cavities of the upper cover assembly and the lower cover assembly are both provided with sound-absorbing and shock-absorbing materials, the lower end of the upper cover assembly is connected with the upper end of the lower cover assembly, and a closed space is formed between the inner cavities of the upper cover assembly and the lower cover assembly;
the closed space is internally provided with: at least one foreign body upper tray, at least one foreign body lower tray and at least one tail cover screw stop assembly;
the upper end of the foreign matter upper tray is fixedly connected with the lower end of the upper cover assembly;
the foreign matter lower tray is arranged at the lower end of the foreign matter upper tray, and the lower end of the foreign matter lower tray is fixedly connected with the upper end of the lower cover assembly;
the electric energy meter to be tested is fixed between the foreign matter upper tray and the foreign matter lower tray and is fixed in the closed space through the foreign matter upper tray and the foreign matter lower tray;
one end of the tail cover screw stop assembly is fixed on the upper cover assembly, and the other end of the tail cover screw stop assembly is fixed on the electric energy meter to be tested.
Furthermore, a slidable guide rail is arranged on the inner wall of one side surface of the lower cover assembly, and the upper cover assembly is connected with the lower cover assembly through the guide rail;
the upper cover assembly further comprises an upper cover support, the lower cover assembly further comprises a lower cover support, and the upper cover support is connected with the lower cover support.
Further, the bottom of the lower cover component is also fixedly connected with an uncovering cylinder, and the uncovering cylinder is connected with the upper cover component;
the uncovering cylinder comprises an opening working state and a closing working state; when the cover opening cylinder is opened and closed, the upper cover assembly is lifted, and an opening and closing space is formed; when the uncovering cylinder is closed, the upper cover assembly and the lower cover assembly form a closed space.
Further, a first shock pad is arranged at the upper end of the foreign matter upper tray; the foreign matter upper tray is fixed on the upper cover assembly through the first shock pad;
the lower end of the foreign matter lower tray is provided with a second shock pad, and the foreign matter lower tray is fixed on the lower cover assembly through the second shock pad.
Further, the tray under the foreign matter still is provided with: the device comprises a gauge stand, a clamping plate limiting component and a sound collecting component;
the electric energy meter to be tested is placed on the meter seat, and the tail part of the meter seat is also provided with a step for limiting the electric energy meter to be tested;
the clamping plate limiting assembly is arranged on the upper surface of the foreign matter lower tray, and a clamping plate on the electric energy meter to be tested is propped between the foreign matter upper tray and the foreign matter lower tray through the clamping plate limiting assembly; the clamping plate limiting component has elasticity;
still be provided with the sound collection subassembly that detects electric energy meter vibrations and sound on the spacing subassembly of cardboard, the sound collection subassembly has elasticity.
Furthermore, a sound detection microphone which can be tightly attached to the shell of the electric energy meter is also arranged on the sound collection assembly; and a sound insulation pad is also arranged between the gauge stand of the foreign matter lower tray and the lower tray base.
Furthermore, the tail cover screw stop assembly comprises a stop bracket, a telescopic cylinder and a stop elastic sheet;
the tail cover screw stop assembly is fixed on the upper cover assembly through the stop bracket;
and the tail cover screw stop assembly fixes the stop elastic sheet in the electric energy meter to be tested through the telescopic cylinder.
Further, the upper end of the foreign matter upper tray is provided with an upper tray base, the lower end of the upper tray base is further provided with a limiting support, and the foreign matter upper tray is fixedly connected with the electric energy meter to be tested through the limiting support.
Further, the lower extreme of tray still is provided with the shock attenuation sponge that compresses tightly the electric energy meter from taking the lead sealing on the foreign matter, the shock attenuation sponge is the elasticity sponge.
Further, the upper cover subassembly is including the upper cover shielding layer, the upper cover shielding layer is including 3 layers, is respectively: the outermost layer is a metal shell, the secondary inner layer is a damping material, and the innermost layer is a sound absorbing material;
the lower cover subassembly is still including lower cover shielding layer, lower cover shielding layer is including 3 layers, is respectively: the outmost layer is a metal shell, the secondary inner layer is made of damping materials, and the innermost layer is made of sound absorbing materials.
Due to the adoption of the technical scheme, the invention has the following advantages:
(1) the invention adopts the full-closed detection of the electric energy meter, isolates the noise of the external environment, shields the possible loose places of the electric energy meter, and improves the detection reliability;
(2) the noise of the external environment can be effectively reduced to be below 30dB through multilayer isolation, and a good sound insulation environment is provided for foreign matter sound collection;
(3) the method shortens the inspection time of the electric energy meter, improves the production efficiency and the utilization rate of equipment, and realizes the quick, efficient, safe and reliable detection of foreign body sounds of the electric energy meter.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.
Drawings
The drawings of the invention are illustrated as follows:
fig. 1 is an explosion structure diagram of a foreign matter sound collection structure in an electric energy meter.
Fig. 2 is a structural schematic diagram of a foreign matter lower tray of a foreign matter sound collection structure in an electric energy meter.
Fig. 3 is a structural schematic diagram of a foreign matter lower tray of a foreign matter sound collection structure in an electric energy meter after the electric energy meter is loaded.
Fig. 4 is a schematic diagram of a sound collection position of a foreign matter lower tray of a foreign matter sound collection structure in an electric energy meter.
Fig. 5 is a structural schematic diagram of a foreign matter upper tray of a foreign matter sound collection structure in an electric energy meter.
Fig. 6 is a structural schematic diagram of the foreign matter sound collection structure in the electric energy meter after the foreign matter upper tray is connected with the electric energy meter.
Fig. 7 is a schematic structural view of an upper cover assembly of a foreign matter sound collection structure in an electric energy meter.
Fig. 8 is a schematic structural view of a lower cover assembly of a foreign matter sound collection structure in an electric energy meter.
Fig. 9 is a structural schematic diagram of a tail cover screw stop assembly of a foreign matter sound collection structure in an electric energy meter.
Fig. 10 is a schematic structural diagram of a tail cover screw locking assembly of a foreign matter sound collection structure in an electric energy meter after the tail cover screw locking assembly is connected with the electric energy meter.
Detailed Description
The invention is further illustrated by the following figures and examples.
Example (b): as shown in fig. 1-10; a foreign matter sound collection structure in electric energy meter, it is including: the upper cover assembly 100, the lower cover assembly 200, the foreign matter upper tray 300, the foreign matter lower tray 400, and the tail cover screw stopper assembly 500.
The inner cavities of the upper cover assembly 100 and the lower cover assembly 200 are both provided with sound-absorbing and shock-absorbing materials, the lower end of the upper cover assembly 100 is connected with the upper end of the lower cover assembly 200, and a closed space is formed between the inner cavities of the upper cover assembly 100 and the lower cover assembly 200;
in this embodiment, 7 foreign matter upper trays 300, 7 foreign matter lower trays 400, and 7 tail cap screw stop assemblies 500 are disposed inside the closed space;
the upper end of the foreign matter upper tray 300 is fixedly connected to the lower end of the upper cover assembly 100;
the foreign matter lower tray 400 is arranged at the lower end of the foreign matter upper tray 300, and the lower end of the foreign matter lower tray 400 is fixedly connected with the upper end of the lower cover assembly 200;
the electric energy meter 600 to be tested is fixed between the foreign matter upper tray 300 and the foreign matter lower tray 400 and is fixed in the closed space through the foreign matter upper tray 300 and the foreign matter lower tray 400;
one end of the tail cover screw stop assembly 500 is fixed on the upper cover assembly 100, and the other end is fixed on the electric energy meter 600 to be tested.
As shown in fig. 1, a slidable guide rail 204 is disposed on an inner wall of one side of the lower cover assembly 200, and the guide rail 204 provides a guide for opening and closing the upper cover assembly. The upper cover assembly 100 is connected to the lower cover assembly 200 through the guide rails 204; an uncovering cylinder 203 is fixedly connected to the bottom of the lower cover assembly 200, and the uncovering cylinder 203 is connected with the upper cover assembly 100;
the uncovering cylinder 203 comprises an opening working state and a closing working state; when the cover opening cylinder 203 is opened and closed, the upper cover assembly 100 is lifted, an opening and closing space is formed, a certain height is reserved between the upper cover assembly 100 and the lower cover assembly 200, and the single-phase electric energy meter 600 can enter and exit the formed height. When the uncapping cylinder 203 is closed, the upper cover assembly 100 and the lower cover assembly 200 form a closed space, and sound-absorbing and shock-absorbing materials are arranged in the upper cover assembly 100 and the lower cover assembly 200, so that a certain amount of external noise sources can be isolated.
The first shock-absorbing pad 302 of the foreign matter upper tray 300 is fixed to the upper cover assembly 100. The first cushion 302 may absorb a portion of the shock of the upper cover assembly 100. The second shock pad 406 on the foreign-matter lower cover tray 400 is fixed to the lower cover assembly 200. The second shock pad 406 may absorb a portion of the shock on the lower cover assembly 400. A tail cap screw stop assembly 500 is secured to the upper cover assembly 100.
As shown in fig. 2 to 4, the electric energy meter 600 is placed on the meter base 401, and a step 408 is provided at the tail of the meter base 401, and can be matched with the upper tray to limit and fix the meter. The cardboard on the spacing subassembly 402 of cardboard withstands electric energy meter 600, and the spacing subassembly 402 of cardboard has elasticity, can guarantee that the cardboard is withstood on electric energy meter 600 always.
A sound detection microphone 407 is arranged on the sound collection component 403, and the sound collection component 403 has elasticity; the sound detection microphone 407 can be ensured to be always attached to the plastic shell of the electric energy meter 600, and the sound detection microphone 407 can effectively detect the vibration and the sound on the shell of the electric energy meter 600.
A sound insulation pad 404 is further provided between the meter seat 401 and the lower tray base 405 of the foreign matter lower tray 400. The soundproof pad 404 is to effectively prevent the vibration on the lower tray base 405 from being transmitted to the bezel 401.
A second shock pad 406 is disposed at the lower end of the foreign matter lower tray 400; the second shock absorbing pad 406 fixes the base 405 to the bottom cover assembly 200, and the second shock absorbing pad 406 can effectively isolate the vibration on the bottom cover assembly 200 from being transmitted to the base 405. The sound collection assembly 403 can be effectively isolated from external sound and vibration by the two damping and sound insulation measures of the second damping pad 406 and the sound insulation pad 404.
As shown in fig. 5 and 6, an upper tray base 301 is arranged at the upper end of the foreign matter upper tray 300, a limiting bracket 304 is further arranged at the lower end of the upper tray base 301, and the foreign matter upper tray 300 is fixedly connected with the electric energy meter 600 to be measured through the limiting bracket 304. After the upper tray 300 compresses the electric energy meter 600, the limiting support 304 is matched with the step 408 at the tail of the meter seat 401 to limit the front and the back of the meter on the meter seat 401, the first shock pad 302 is fixed on the upper cover assembly 100, and the first shock pad 302 can isolate the vibration on the upper cover assembly 100 from being transmitted to the base 301. The damping sponge 303 is elastic sponge, and the damping sponge 303 can effectively compress the electric energy meter 600 on the electric energy meter 600 from the lead seal 305 after compressing the electric energy meter 600, and the electric energy meter 600 can collide with the lead seal 305 to generate abnormal sound.
As shown in fig. 7, the upper cover assembly 100 further includes an upper cover support 101, the lower cover assembly 101 further includes a lower cover support 201, and the upper cover support 101 is connected to the lower cover support 201.
The upper cover bracket 101 mainly serves as a support frame and is connected to the lower cover assembly 200. The upper cover shielding layer 102 is divided into three layers, the outermost layer is a metal shell, the second layer is made of damping materials, the third layer is made of sound absorbing materials, and external environment noise can be effectively reduced to be lower than 30dB through multi-layer isolation. Provide good sound-proof environment for foreign matter sound collection component.
As shown in fig. 8, the lower cover bracket 201 mainly serves as a bracket framework and is connected to the upper cover assembly 100, the lower cover shielding layer 202 is divided into three layers, the outermost layer is a metal shell, the second layer is a damping material, and the third layer is a sound absorbing material; the noise of the external environment can be effectively reduced to below 30dB by multi-layer isolation. Provide good sound-proof environment for foreign matter sound collection component. The uncovering cylinder 203 is opened and closed when the electric energy meter 600 needs to be put in or taken out.
As shown in fig. 9 and 10, since the tail cover screws of the electric energy meter 600 are not tightened during production and are loosened during transportation, when the electric energy meter 600 is shaken, the tail cover screws collide with the housing of the electric energy meter 600, which generates noise and affects the determination result of the foreign matter.
The tail cap screw stop assembly 500 is fixed on the upper cover assembly 100 through the stop bracket 501; the tail cover screw stop assembly 500 fixes the stop spring 503 in the electric energy meter 600 to be tested through the telescopic cylinder 502.
The stop support 501 is fixed on the upper cover assembly 100, the cover opening cylinder 203 is closed, the upper cover assembly 100 and the lower cover assembly 200 are closed together, the telescopic cylinder 502 acts, the stop elastic sheet 503 is inserted into the tail cover screw, the tail cover screw is tightly pressed on the electric energy meter 600, and noise is not generated when the tail cover screw shakes.
After detection is finished, the telescopic cylinder 502 retracts, and the cover opening cylinder 203 can be opened and the electric energy meter 600 can be taken out after the stop elastic sheet 503 exits from the electric energy meter 600.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a foreign matter sound collection structure in electric energy meter which characterized in that, including: an upper cover assembly (100) and a lower cover assembly (200);
the inner cavities of the upper cover assembly (100) and the lower cover assembly (200) are both provided with sound-absorbing and shock-absorbing materials, the lower end of the upper cover assembly (100) is connected with the upper end of the lower cover assembly (200), and a closed space is formed between the inner cavities of the upper cover assembly and the lower cover assembly;
the closed space is internally provided with: at least one foreign object upper tray (300), at least one foreign object lower tray (400), and at least one tail cap screw stop assembly (500);
the upper end of the foreign matter upper tray (300) is fixedly connected with the lower end of the upper cover assembly (100);
the foreign matter lower tray (400) is arranged at the lower end of the foreign matter upper tray (300), and the lower end of the foreign matter lower tray (400) is fixedly connected with the upper end of the lower cover assembly (200);
the electric energy meter (600) to be tested is fixed between the foreign matter upper tray (300) and the foreign matter lower tray (400), and is fixed in the closed space through the foreign matter upper tray (300) and the foreign matter lower tray (400);
one end of the tail cover screw stop assembly (500) is fixed on the upper cover assembly (100), and the other end of the tail cover screw stop assembly is fixed on the electric energy meter (600) to be tested;
the tail cover screw stop assembly (500) comprises a stop bracket (501), a telescopic cylinder (502) and a stop elastic sheet (503);
the tail cap screw stop assembly (500) is fixed on the upper cover assembly (100) through the stop bracket (501);
the tail cover screw stop assembly (500) fixes the stop elastic sheet (503) in the electric energy meter (600) to be tested through the telescopic cylinder (502).
2. The sound collection structure for foreign matters in an electric energy meter according to claim 1, wherein a slidable guide rail (204) is provided on an inner wall of one side surface of the lower cover assembly (200), and the upper cover assembly (100) is connected with the lower cover assembly (200) through the guide rail (204);
the upper cover assembly (100) further comprises an upper cover support (101), the lower cover assembly (101) further comprises a lower cover support (201), and the upper cover support (101) is connected with the lower cover support (201).
3. The sound collection structure for the foreign matters in the electric energy meter according to claim 1, wherein an uncovering cylinder (203) is further fixedly connected to the bottom of the lower cover assembly (200), and the uncovering cylinder (203) is connected with the upper cover assembly (100);
the uncovering cylinder (203) comprises an opening working state and a closing working state; when the cover opening cylinder (203) is opened, the upper cover assembly (100) is lifted, and an opening and closing space is formed; when the cover-opening cylinder (203) is closed, the upper cover assembly (100) and the lower cover assembly (200) form a closed space.
4. The sound collection structure for foreign matters in an electric energy meter according to claim 1, wherein a first shock absorption pad (302) is provided at an upper end of the foreign matter upper tray (300); the foreign matter upper tray (300) is fixed on the upper cover assembly (100) through the first shock absorption pad (302);
the lower end of the foreign matter lower tray (400) is provided with a second shock pad (406), and the foreign matter lower tray (400) is fixed on the lower cover assembly (200) through the second shock pad (406).
5. The structure for collecting sound of foreign matters in an electric energy meter according to claim 1, wherein the foreign matter lower tray (400) is further provided with: the device comprises a watch base (401), a clamping plate limiting component (402) and a sound collecting component (403);
the electric energy meter (600) to be tested is placed on the meter base (401), and the tail of the meter base (401) is also provided with a step (408) for limiting the electric energy meter to be tested;
the clamping plate limiting component (402) is arranged on the upper surface of the foreign matter lower tray (400), and a clamping plate on an electric energy meter to be tested is propped between the foreign matter upper tray (300) and the foreign matter lower tray (400) through the clamping plate limiting component (402); the card board limiting component (402) has elasticity;
still be provided with sound collection component (403) that detect electric energy meter vibrations and sound on cardboard spacing component (402), sound collection component (403) have elasticity.
6. The structure for collecting the sound of the foreign matters in the electric energy meter according to claim 5, wherein the sound collection assembly (403) is further provided with a sound detection microphone (407) which can be tightly attached to the shell of the electric energy meter;
and a sound insulation pad (404) is also arranged between the gauge stand (401) of the foreign matter lower tray (400) and the lower tray base (405).
7. The sound collection structure for the foreign matters in the electric energy meter as claimed in claim 1, wherein an upper tray base (301) is arranged at the upper end of the foreign matter upper tray (300), a limiting bracket (304) is further arranged at the lower end of the upper tray base (301), and the foreign matter upper tray (300) is fixedly connected with the electric energy meter (600) to be tested through the limiting bracket (304).
8. The sound collection structure for the foreign matters in the electric energy meter as claimed in claim 1, wherein a damping sponge (303) for pressing a self-contained lead seal (305) of the electric energy meter is further arranged at the lower end of the foreign matter upper tray (300), and the damping sponge (303) is an elastic sponge.
9. The sound collection structure for foreign matters in an electric energy meter according to claim 1, wherein the upper cover assembly (100) comprises an upper cover shielding layer (102), and the upper cover shielding layer comprises 3 layers, which are respectively: the outermost layer is a metal shell, the secondary inner layer is a damping material, and the innermost layer is a sound absorbing material;
the lower cover assembly (200) further comprises a lower cover shielding layer (202), and the lower cover shielding layer comprises 3 layers which are respectively: the outmost layer is a metal shell, the secondary inner layer is made of damping materials, and the innermost layer is made of sound absorbing materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711174296.9A CN107976649B (en) | 2017-11-22 | 2017-11-22 | Foreign matter sound collection structure in electric energy meter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711174296.9A CN107976649B (en) | 2017-11-22 | 2017-11-22 | Foreign matter sound collection structure in electric energy meter |
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| CN107976649B true CN107976649B (en) | 2020-04-14 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109034046B (en) * | 2018-07-20 | 2022-03-22 | 国网重庆市电力公司电力科学研究院 | Method for automatically identifying foreign matters in electric energy meter based on acoustic detection |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB919260A (en) * | 1961-06-08 | 1963-02-20 | Helen Wills Strong | Electric meter box |
| CN103916506A (en) * | 2012-12-31 | 2014-07-09 | 赛龙通信技术（深圳）有限公司 | Testing device and audio automatic testing system and method for mobile terminal |
| CN104443602A (en) * | 2014-10-20 | 2015-03-25 | 国网重庆市电力公司电力科学研究院 | Automatic unpacking system and method of electric energy meter |
| CN204291336U (en) * | 2014-12-15 | 2015-04-22 | 深圳市佳晨科技有限公司 | A kind of side enabling sound proof box |
| CN106199492A (en) * | 2016-07-18 | 2016-12-07 | 国网重庆市电力公司电力科学研究院 | A kind of electric energy meter foreign bodies detection megger mechanism |
| CN205880069U (en) * | 2016-04-11 | 2017-01-11 | 河南许继仪表有限公司 | Ammeter bee calling organ detection device |
| CN106405471A (en) * | 2015-07-28 | 2017-02-15 | 国网河南省电力公司南阳供电公司 | Electric energy meter reliability test system |
-
2017
- 2017-11-22 CN CN201711174296.9A patent/CN107976649B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB919260A (en) * | 1961-06-08 | 1963-02-20 | Helen Wills Strong | Electric meter box |
| CN103916506A (en) * | 2012-12-31 | 2014-07-09 | 赛龙通信技术（深圳）有限公司 | Testing device and audio automatic testing system and method for mobile terminal |
| CN104443602A (en) * | 2014-10-20 | 2015-03-25 | 国网重庆市电力公司电力科学研究院 | Automatic unpacking system and method of electric energy meter |
| CN204291336U (en) * | 2014-12-15 | 2015-04-22 | 深圳市佳晨科技有限公司 | A kind of side enabling sound proof box |
| CN106405471A (en) * | 2015-07-28 | 2017-02-15 | 国网河南省电力公司南阳供电公司 | Electric energy meter reliability test system |
| CN205880069U (en) * | 2016-04-11 | 2017-01-11 | 河南许继仪表有限公司 | Ammeter bee calling organ detection device |
| CN106199492A (en) * | 2016-07-18 | 2016-12-07 | 国网重庆市电力公司电力科学研究院 | A kind of electric energy meter foreign bodies detection megger mechanism |
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| CN107976649A (en) | 2018-05-01 |
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