CN210577242U - Noise reduction ammeter box - Google Patents
Noise reduction ammeter box Download PDFInfo
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- CN210577242U CN210577242U CN201922123630.9U CN201922123630U CN210577242U CN 210577242 U CN210577242 U CN 210577242U CN 201922123630 U CN201922123630 U CN 201922123630U CN 210577242 U CN210577242 U CN 210577242U
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Abstract
The utility model discloses a noise reduction ammeter box in the field of ammeter boxes, which comprises a box body, wherein a shell is fixed in the box body, ammeter devices are arranged in the shell, hollow cylinders extend from the upper surface and the lower surface of the shell, the hollow cylinders are communicated with the interior of the shell, a hollow cavity is arranged on the outer side of each hollow cylinder, sound absorption cotton is attached to the inner wall of each hollow cavity, and each hollow cylinder penetrates through the side wall of each hollow cavity and extends into the interior of the corresponding hollow cavity; the left side wall and the right side wall of the shell are provided with vent holes, and a sound insulation board is fixed at one side of the vent holes. The utility model discloses an at the inside casing that is equipped with of ammeter case, install the ammeter device inside the casing, when the ammeter makes noise, the noise can be by the acoustic celotex board in the casing outside, inhale absorption such as sound cotton and keep apart, can play the effect of noise reduction.
Description
Technical Field
The utility model relates to an ammeter case field, concretely relates to ammeter case of making an uproar falls.
Background
The electric meter box is mainly formed by injection molding and pressing four materials of ABS engineering plastics, polycarbonate transparent PC materials, DMC and SMC. The electric meter box is related to the electricity utilization condition of each household and is an essential accessory for each household unit.
Outdoor ammeter case is generally installed on unit gate or indoor wall body, installs the wiring of ammeter and primary loop, secondary circuit in the ammeter case to and various ammeter devices etc. be convenient for concentrate the inspection power consumption load.
Because ammeter incasement portion has various ammeter devices, inside electron device such as choked flow circle that is equipped with of ammeter device at the during operation, can influence personnel's rest because the installation is not hard up scheduling problem noise production, because the noise can not influence the function of ammeter for a while, therefore the staff can not give the change, gets off for a long time, and the noise influences the neighborhood relation easily.
SUMMERY OF THE UTILITY MODEL
Solves the technical problem
To the problem among the prior art, the utility model provides an ammeter case of making an uproar falls adopts and is equipped with the casing in ammeter incasement portion, installs the ammeter device inside the casing, and when the ammeter noise emission, the noise can be by the acoustic celotex board in the casing outside, inhale absorption such as sound cotton and keep apart, can play the effect of noise reduction.
Technical scheme
The utility model discloses a following technical scheme realizes:
a shell is fixed inside the box body, an ammeter device is installed inside the shell, hollow cylinders extend from the upper surface and the lower surface of the shell and are communicated with the inside of the shell, a hollow cavity is arranged on the outer side of each hollow cylinder, sound-absorbing cotton is attached to the inner wall of each hollow cavity, and each hollow cylinder penetrates through the side wall of each hollow cavity and extends into the corresponding hollow cavity; be equipped with the ventilation hole and be in on the lateral wall about the casing one side in ventilation hole is fixed with the acoustic celotex board.
Furthermore, the front side of the box body is hinged with a cabinet door, and the sound-absorbing cotton is attached to the inner surface of the cabinet door and the inner side wall of the box body.
Further, the sound insulation board is made of porous materials, and a cavity is arranged inside the sound insulation board.
Further, the hollow cylinder and the hollow cavity are sealed through a rubber ring at the joint.
Furthermore, the hollow cavity and the upper inner wall and the lower inner wall of the box body are fixedly connected through a spring.
Advantageous effects
Adopt the utility model provides a technical scheme compares with known public technique, has following beneficial effect:
the utility model provides an ammeter case of making an uproar falls adopts and is equipped with the casing in ammeter incasement portion, installs the ammeter device inside the casing, and when the ammeter sent the noise, the noise can be by the acoustic celotex board in the casing outside, inhale absorption such as sound cotton and keep apart, can play the effect of noise reduction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic view of the internal structure of the present invention at a front view angle;
FIG. 2 is a schematic diagram of the left side angle internal structure of the present invention;
the reference numbers in the figures are: 1-a box body; 2-a shell; 3-electric meter device; 4-a hollow cylinder; 5-hollow cavity; 6-sound-absorbing cotton; 7-a vent hole; 8-sound insulation board; 9-a cabinet door; 10-a spring; 11-a cavity; 12-rubber ring.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clear more, the drawings in the embodiments of the present invention will be combined below to clear and completely describe the technical solution in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention will be further described with reference to the following examples.
Embodiment 1, with reference to fig. 1, a noise reduction ammeter box comprises a box body 1, wherein a shell 2 is fixed inside the box body 1, an ammeter device 3 is installed inside the shell 2, hollow cylinders 4 extend from the upper and lower surfaces of the shell 2, the hollow cylinders 4 are communicated with the inside of the shell 2, hollow cavities 5 are arranged outside the hollow cylinders 4, sound absorbing cotton 6 is attached to the inner walls of the hollow cavities 5, and the hollow cylinders 4 penetrate through the side walls of the hollow cavities 5 and extend into the hollow cavities 5; the left and right side walls of the casing 2 are provided with vent holes 7, and a baffle plate 8 is fixed to one side of the vent holes 7.
Firstly, the shell 2 and the box body 1 are separated from the outside by the electric meter device 3, and firstly, the double-layer side wall isolates part of noise; then, when the electric meter device 3 emits noise, a part of sound energy is transmitted into the hollow cavity 5 through the hollow cylinder 4, and after sound airflow enters the hollow cavity 5 in the narrow hollow cylinder 4, the airflow is expanded and amplified, and the sound energy is attenuated and absorbed by the sound absorption cotton 6 in the hollow cavity 5.
The other part of noise is transmitted to the space between the shell 2 and the box body 1 through the vent hole 7, and the sound insulation plate 8 is arranged on one side of the vent hole 7 and fixed on the inner surface of the box body 1, so that the sound insulation plate 8 plays a role of a barrier to reflect and absorb sound energy, noise sound emitted by the electric meter device is reduced in multiple modes, and a good noise reduction effect is achieved.
Preferably, the front side of the box body 1 is hinged with a cabinet door 9, and the inner surface of the cabinet door 9 and the inner side wall of the box body 1 are both attached with sound absorption cotton 6.
After the noise air current comes out from ventilation hole 7, contact box 1 inner wall and cabinet door 9 inner wall, inhale sound cotton 6 and can utilize the porous characteristic absorption noise of self, prevent that it from spreading outside box 1.
The baffle-panels 8 are preferably made of a cellular material and are provided with cavities 11 inside the baffle-panels 8.
The sound insulating board 8 is provided with pin holes on the surface due to the material characteristics of the sound insulating board 8, and after the noise airflow is transmitted from the vent hole 7, the sound insulating board 8 is separated between the inner wall of the box body 1 and the outer wall of the shell 2, so that the noise can be isolated by a barrier effect, and in addition, the noise can be further absorbed, and the noise airflow can be comprehensively reduced.
Preferably, the joint of the hollow cylinder 4 and the hollow cavity 5 is sealed by a rubber ring 12.
The rubber ring 12 can prevent noise airflow from escaping to the outside from the joint of the hollow cylinder 4 and the hollow cavity 5 when the noise airflow enters the hollow cavity 5 from the hollow cylinder 4, and reduce the attenuation effect of the hollow cavity 5 on noise.
Preferably, the hollow cavity 5 and the upper and lower inner walls of the box body 1 are fixedly connected through a spring 10.
Hollow cavity 5 may receive external collision, wind and rain influence and self produces and rocks from top to bottom, and hollow cavity 5 rocks from top to bottom when, and hollow cylinder 4 between the relative piston motion that takes place, and the noise can further obtain the compression offset between hollow cavity 5's piston motion, improves the sound absorbing effect.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the specific implementations of the invention. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides an ammeter case of making an uproar falls which characterized in that: the sound-absorbing box comprises a box body (1), a shell (2) is fixed inside the box body (1), an electric meter device (3) is installed inside the shell (2), hollow cylinders (4) extend from the upper surface and the lower surface of the shell (2), the hollow cylinders (4) are communicated with the inside of the shell (2), hollow cavities (5) are arranged on the outer sides of the hollow cylinders (4), sound-absorbing cotton (6) are attached to the inner walls of the hollow cavities (5), and the hollow cylinders (4) penetrate through the side walls of the hollow cavities (5) and stretch into the hollow cavities (5); be equipped with ventilation hole (7) and be in on the lateral wall about casing (2) one side in ventilation hole (7) is fixed with acoustic celotex board (8).
2. A noise reducing electricity meter box according to claim 1, wherein: the front side of the box body (1) is hinged with a cabinet door (9), and the sound-absorbing cotton (6) is attached to the inner surface of the cabinet door (9) and the inner side wall of the box body (1).
3. A noise reducing electricity meter box according to claim 1, wherein: the sound insulation board (8) is made of porous materials, and a cavity (11) is arranged inside the sound insulation board (8).
4. A noise reducing electricity meter box according to claim 1, wherein: the joint of the hollow cylinder (4) and the hollow cavity (5) is sealed by a rubber ring (12).
5. A noise reducing electricity meter box according to claim 4, characterized in that: the hollow cavity (5) is fixedly connected with the upper inner wall and the lower inner wall of the box body (1) through springs (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922123630.9U CN210577242U (en) | 2019-12-02 | 2019-12-02 | Noise reduction ammeter box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922123630.9U CN210577242U (en) | 2019-12-02 | 2019-12-02 | Noise reduction ammeter box |
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| Publication Number | Publication Date |
|---|---|
| CN210577242U true CN210577242U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922123630.9U Active CN210577242U (en) | 2019-12-02 | 2019-12-02 | Noise reduction ammeter box |
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| CN (1) | CN210577242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638392A (en) * | 2020-05-29 | 2020-09-08 | 宁波泰丰源电气有限公司 | Electric energy meter with good display effect |
-
2019
- 2019-12-02 CN CN201922123630.9U patent/CN210577242U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638392A (en) * | 2020-05-29 | 2020-09-08 | 宁波泰丰源电气有限公司 | Electric energy meter with good display effect |
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