CN111947312A - Bottom shell assembly, shell structure and heat exchange equipment applying bottom shell assembly and shell structure - Google Patents
Bottom shell assembly, shell structure and heat exchange equipment applying bottom shell assembly and shell structure Download PDFInfo
- Publication number
- CN111947312A CN111947312A CN202010857804.9A CN202010857804A CN111947312A CN 111947312 A CN111947312 A CN 111947312A CN 202010857804 A CN202010857804 A CN 202010857804A CN 111947312 A CN111947312 A CN 111947312A
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- Prior art keywords
- bottom shell
- air
- assembly
- heat exchange
- cover plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000030279 gene silencing Effects 0.000 claims abstract description 37
- 230000009467 reduction Effects 0.000 claims abstract description 15
- 239000011358 absorbing material Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000010438 heat treatment Methods 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 206010067484 Adverse reaction Diseases 0.000 description 3
- 206010019233 Headaches Diseases 0.000 description 3
- 230000006838 adverse reaction Effects 0.000 description 3
- 231100000869 headache Toxicity 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 206010022998 Irritability Diseases 0.000 description 2
- 206010033557 Palpitations Diseases 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009323 psychological health Effects 0.000 description 2
- 238000010112 shell-mould casting Methods 0.000 description 2
- 206010013954 Dysphoria Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/02—Casings; Cover lids; Ornamental panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
The invention discloses a bottom shell assembly, a shell structure and heat exchange equipment using the bottom shell assembly, wherein the bottom shell assembly comprises a bottom shell body and a silent cover plate, a bottom shell pressing groove is formed in the bottom shell body, and the silent cover plate is arranged at a position, corresponding to the bottom shell pressing groove, on the bottom shell body to form an air silent channel for carrying out noise reduction treatment on noise generated by the heat exchange equipment. According to the invention, the bottom shell pressing type groove is arranged on the bottom shell body, the silencing cover plate is arranged at the position, corresponding to the bottom shell pressing type groove, on the bottom shell body, and the silencing cover plate and the bottom shell pressing type groove are connected to form the air silencing channel, so that when the heat exchange equipment works, the generated noise firstly enters the air silencing channel, the air silencing channel carries out noise reduction treatment on the noise, and at the moment, the noise transmitted from the air silencing channel becomes very low, thereby realizing the effect of reducing the noise; in addition, the invention has simple structure, low manufacturing cost and wide application range, and is worthy of great popularization and application.
Description
Technical Field
The invention belongs to the technical field of heat exchange equipment, and particularly relates to a bottom shell assembly, a shell structure and heat exchange equipment using the same.
Background
In recent years, the domestic gas water heater market always holds the requirement of low noise, but the noise generated by the gas water heater is more and more increased along with the gradual improvement of the water yield of the gas water heater; particularly, noise generated when the gas water heater works can cause adverse reactions such as dysphoria, headache, palpitation and the like of old people, children and operators, and can cause serious influence on physical and psychological health after long-term use; therefore, the noise becomes a technical problem to be solved urgently in the existing gas water heater; along with the improvement of the requirements of people on the living quality, users pay more and more attention to the size of the noise parameter of the gas water heater when purchasing the gas water heater, so that the quality of the noise performance of the gas water heater is a key factor of the product competitiveness.
Disclosure of Invention
In view of the above, the main object of the present invention is to provide a bottom shell assembly, which solves the problem that the noise reduction effect of the bottom shell structure used in the existing heat exchange equipment is not good, so that the noise of the heat exchange equipment during operation is large, and the physical and psychological health of a user is affected.
The invention also aims to provide a shell structure applying the bottom shell assembly;
the invention also aims to provide heat exchange equipment applying the shell structure.
In order to achieve the purpose, the technical scheme of the invention is realized as follows: the bottom shell assembly is used for heat exchange equipment and comprises a bottom shell body and a silencing cover plate, wherein a bottom shell pressing groove is formed in the bottom shell body, and an air silencing channel is formed in the position, corresponding to the bottom shell pressing groove, of the silencing cover plate, and is used for noise reduction treatment of noise generated by the heat exchange equipment.
Preferably, the bottom case assembly further comprises a sound absorbing material layer disposed within the air-silencing duct.
Preferably, an air inlet is arranged in the bottom shell pressing type groove, an air outlet is arranged on the mute cover plate, and the air inlet and the air outlet are respectively positioned at one side of the bottom shell pressing type groove opposite to the mute cover plate.
Preferably, the sound-absorbing material layer is fixedly arranged on the bottom shell body and forms a gap for air circulation with the bottom of the bottom shell profiling groove on the bottom shell body.
Preferably, the length of the sound-absorbing material layer in the long side direction is smaller than the length of the bottom shell die-type groove in the long side direction, and the sound-absorbing material layer is arranged on one side, close to the air inlet, of the air silencing passage and used for avoiding the air outlet.
Preferably, the area of the longitudinal section of the air silencing channel formed by the silencing cover plate and the bottom shell pressing type groove is 800-1500 mm2。
Preferably, the air inlet area of the air inlet is 3000-7000 mm2。
Preferably, the air outlet area of the air outlet is 2500-5000 mm2。
Preferably, the depth of the bottom shell pressing type groove is 5-20 cm; the thickness of the sound-absorbing material layer is 5-30 mm.
Preferably, the air inlet is formed by a plurality of strip-shaped holes or a plurality of louver windows; the air outlet is formed by a plurality of strip-shaped openings, a plurality of round holes or a plurality of square holes.
The other technical scheme of the invention is realized as follows: the shell structure comprises a face shell assembly, the bottom shell assembly and a sealing strip, wherein the face shell assembly is connected with the bottom shell assembly through the sealing strip.
The third technical scheme of the invention is realized as follows: the heat exchange equipment comprises a fan assembly and the shell structure, wherein the fan assembly is arranged in the shell structure and is positioned at an air outlet of the shell structure.
Compared with the prior art, the bottom shell pressing type groove is arranged on the bottom shell body, the silencing cover plate is arranged on the bottom shell body at the position corresponding to the bottom shell pressing type groove, and the silencing cover plate and the bottom shell pressing type groove are connected to form the air silencing channel, so that when the heat exchange equipment works, generated noise firstly enters the air silencing channel, the air silencing channel carries out noise reduction treatment on the noise, and at the moment, the noise transmitted from the air silencing channel is reduced, and the effect of reducing the noise is realized; in addition, the invention has simple structure, low manufacturing cost and wide application range, and is worthy of great popularization and application.
Drawings
Fig. 1 is a schematic perspective view of a bottom case assembly according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of another orientation of a bottom case assembly according to embodiment 1 of the present invention;
fig. 3 is a connection diagram of the bottom case body and the mute cover plate in the bottom case assembly according to embodiment 1 of the present invention;
fig. 4 is a matching connection diagram of a bottom case body and a sound absorbing material layer in a bottom case assembly according to embodiment 1 of the present invention;
fig. 5 is a front view of a bottom case body in the bottom case assembly according to embodiment 1 of the present invention;
fig. 6 is a schematic perspective view of a mute cover plate in a bottom case assembly according to embodiment 1 of the present invention.
Fig. 7 is a schematic structural diagram of a heat exchange device provided in embodiment 3 of the present invention.
In the figure, 1, a bottom shell body, 11, a bottom shell compression groove, 111, an air inlet, 2, a mute cover plate, 21, an air inlet, 21, an air outlet, 23, an outward flange, 24, an inward flange, 3, a sound absorbing material layer and 4, a fan component.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", 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 of the present invention, and do not mean that the device or member to which the present invention is directed must have a specific orientation or position, and thus, cannot be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The bottom shell assembly provided by embodiment 1 of the invention is used for heat exchange equipment, and as shown in fig. 1, fig. 2 and fig. 3, the bottom shell assembly comprises a bottom shell body 1 and a silent cover plate 2, a bottom shell pressing groove 11 is arranged on the bottom shell body 1, and the silent cover plate 2 is arranged on the bottom shell body 1 at a position corresponding to the bottom shell pressing groove 11 to form an air silent channel for performing noise reduction treatment on noise generated by the heat exchange equipment.
After the scheme is adopted, the bottom shell pressing type groove 11 is arranged on the bottom shell body 1, the silencing cover plate 2 is arranged at the position, corresponding to the bottom shell pressing type groove 11, on the bottom shell body, and the air silencing channel is formed after the bottom shell pressing type groove and the bottom shell pressing type groove are connected, so that noise generated when the heat exchange equipment works enters the air silencing channel firstly, the air silencing channel carries out noise reduction treatment on the noise, the noise transmitted from the air silencing channel at the moment is very low, and the noise reduction effect is realized.
Further, as shown in fig. 3, the bottom case assembly further includes a sound-absorbing material layer 3, and the sound-absorbing material layer 3 is disposed in the air-deadening channel; the sound-absorbing material layer 3 is preferably made of sound-absorbing cotton.
Through will inhale sound material layer 3 and set up in air silence passageway, make like this when the noise that indirect heating equipment during operation produced get into the air silence passageway earlier in, sound material layer 3 in the air silence passageway carries out further sound absorption noise reduction treatment to the noise that indirect heating equipment produced, and the noise that spreads from the air silence passageway this moment will become very low, almost for the silence to the effect of noise reduction and silence has been realized.
Further, as shown in fig. 1 and fig. 2, an air inlet 111 is provided in the bottom shell molding groove 11, an air outlet 21 is provided on the silent cover plate 2, and the air inlet 111 and the air outlet 21 are respectively located at opposite sides of the bottom shell molding groove 11 and the silent cover plate 2.
Through setting up air intake 111 and air outlet 21 in the relative one side department of drain pan die mould concave trough 11 and silence apron 2, the effectual propagation time of the noise that has increased the indirect heating equipment during operation in the air silence passageway like this to not only improve the effect of noise reduction, but also promoted the price/performance ratio and the travelling comfort of this product.
Further, the sound absorbing material layer 3 is fixedly arranged on the bottom shell body 1 and forms a gap for air circulation with the bottom of the bottom shell profiling groove 11 on the bottom shell body 1.
Through set up the clearance between bottom at drain pan die mould groove 11 and sound absorbing material layer 3, the purpose is first, for the circulation of air provides the condition, and the purpose is second for sound absorbing material layer 3 can be by a large scale the noise that heat exchange equipment during operation produced and inhale the sound and handle, thereby the effectual effect of making an uproar that falls that has improved.
Further, as shown in fig. 3, the length of the sound-absorbing material layer 3 in the longitudinal direction is smaller than the length of the bottom-shell-type recess 11 in the longitudinal direction, and the sound-absorbing material layer 3 is disposed on the side close to the air inlet 111 in the air-deadening passage so as to avoid the air outlet 21.
Furthermore, the area of the longitudinal section of the air silencing channel formed by the silencing cover plate 2 and the bottom shell pressing type groove 11 is 800-1500 mm2(ii) a The area can not be too large, too large noise reduction effect is not obvious, and too small air intake is too small to meet the air quantity required by combustion of the water heater.
Further, as shown in fig. 6, the lower portion of the mute cover plate 2 is provided with a flanging 22 and a flanging 23, and the flanging 22 functions as: the convenient silent cover plate 2 is connected with the bottom shell body 1 (the connection mode can be welding connection or screw connectionMeet), the turn-up 23 can effectually compress tightly fixedly with the sound absorbing material layer 3 in the passageway, guarantees that sound absorbing material layer 3 is compressed tightly fixedly, avoids the used sound cotton of inhaling of sound absorbing material layer 3 to block up air passage to guaranteed that the air is in the same direction as smooth flow to the indirect heating equipment in. Further, the air inlet area of the air inlet 111 is 3000-7000 mm2(ii) a By setting the air inlet area to 3000-7000 mm2Therefore, the air intake is ensured to meet the combustion condition requirement of hot gas heat exchange (such as a gas water heater).
Further, the air outlet area of the air outlet 21 is 2500-5000 mm2(ii) a The air outlet area is set to be 2500-5000 mm2Therefore, the air quantity required by combustion of hot gas heat exchange (such as a gas water heater) is ensured, and the air outlet area is smaller than the air inlet area, so that the heat exchange equipment can be prevented from generating a noise source and transmitting the noise source from the air silencing channel.
Further, the depth of the bottom shell pressing type groove 11 is 5-20 cm; the thickness of the sound-absorbing material layer 3 is 5-30 mm.
Further, as shown in fig. 1 to 6, the air inlet 111 is formed by a plurality of strip-shaped holes or a plurality of louver windows; the air outlet 21 is formed by a plurality of strip-shaped openings, a plurality of round holes or a plurality of square holes.
The air inlet 111 and the air outlet 21 may have other shapes, and are not limited to practical use; in addition, the number of the air inlets 111 and the air outlets 21 is set according to the size of the heat exchange equipment or the specific requirements of customers.
Example 2
The shell structure provided by embodiment 2 of the invention comprises a surface shell assembly, the bottom shell assembly and the sealing strips, wherein the surface shell assembly is connected with the bottom shell assembly through the sealing strips.
Through adopting the shell structure who contains drain pan subassembly in embodiment 1 for when using this shell structure in indirect heating equipment, the noise that can effectually produce the indirect heating equipment falls the processing of making an uproar, thereby avoids the user to produce the irritability, headache, adverse reaction such as palpitation, has promoted the travelling comfort after user's the use.
Example 3
As shown in fig. 7, the heat exchange device provided in embodiment 3 of the present invention includes a fan assembly 4 and the housing structure described in embodiment 2, where the fan assembly 4 is disposed in the housing structure and located at an air outlet in the housing structure.
The reason for this by locating the fan assembly 4 within the housing structure and at the air outlet 21 in the housing structure is: because when the heat exchange equipment works, air needs to be tightly extracted from the outside, and other parts are closed except the air silencing channel and the external connection on the shell structure, when the heat exchange equipment works, the required air enters the air silencing channel from the air inlet 111 on the bottom shell assembly and then flows out from the air outlet 21 on the bottom shell assembly to reach the inside, so that the air quantity required by the gas water heater is met, but because the fan assembly 4 is arranged at the air outlet 21, the incoming cold air is firstly contacted with the motor part in the fan assembly 4, so that the motor part of the fan can be effectively cooled, the motor is prevented from being damaged due to the higher temperature generated when the water heater works, and the normal work of the water heater is further ensured.
In addition, through use embodiment 2 on indirect heating equipment shell structure for noise reduction treatment can be carried out to the noise that indirect heating equipment produced to the effectual, thereby avoid the user to produce the irritability, the headache, adverse reaction such as cardiopalmus, has promoted the travelling comfort after user's the use.
The working principle of the heat exchange equipment provided by the embodiment 3 of the invention is as follows:
when the heat exchange equipment works, the generated noise mainly comes from the fan component 4 and the combustion, because the shell structure of the invention is sealed except the air silencing channel, the noise generated by the heat exchange equipment can only pass through the air silencing channel through the air outlet 21 on the shell structure and finally is transmitted to the back of the heat exchange equipment from the air inlet 111, the noise generated by the heat exchange equipment is far away from the air outlet 21 in the air silencing channel and is reduced to a certain extent, then the noise enters the air silencing channel through the air inlet 111, the air silencing channel is provided with the sound-absorbing material layer 3, the sound-absorbing material layer 3 weakens the noise to a certain extent, in addition, when the noise enters the air silencing channel, the noise is transmitted to the air inlet 111 on the bottom shell component under the reflection action of the sound-absorbing material layer 3 and the air silencing channel, the noise is greatly weakened, and at the moment, when the noise is transmitted to the front face of the heat exchange equipment from the back of the heat exchange equipment, the noise becomes very low, so that the effects of noise reduction and silence are achieved.
In addition, the heat exchange equipment provided by the embodiment of the invention is a gas water heater, a wall-mounted furnace, a dual-purpose furnace and the like.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. The bottom shell assembly is used for heat exchange equipment and is characterized by comprising a bottom shell body (1) and a mute cover plate (2), wherein a bottom shell pressing groove (11) is formed in the bottom shell body (1), and the mute cover plate (2) is arranged on the bottom shell body (1) and corresponds to the bottom shell pressing groove (11) to form an air mute channel for noise reduction treatment of noise generated by the heat exchange equipment.
2. A bottom shell assembly according to claim 1, further comprising a sound absorbing material layer (3), said sound absorbing material layer (3) being arranged inside said air-silencing duct.
3. A bottom shell assembly according to claim 2, wherein an air inlet (111) is provided in the bottom shell profiled recess (11), an air outlet (21) is provided in the silent cover plate (2), and the air inlet (111) and the air outlet (21) are located at opposite sides of the bottom shell profiled recess (11) and the silent cover plate (2), respectively.
4. A bottom shell assembly according to claim 3, wherein said sound-absorbing material layer (3) is fixed to the bottom shell body (1) and forms a gap with the bottom of the bottom shell profiled recess (11) on the bottom shell body (1).
5. A bottom shell assembly according to claim 4, wherein the length of the sound-absorbing material layer (3) in the longitudinal direction is smaller than the length of the bottom shell profiled recess (11) in the longitudinal direction, and the sound-absorbing material layer (3) is arranged in the air-deadening channel on the side close to the air intake opening (111) so as to avoid the air outlet opening (21).
6. A bottom shell assembly according to any one of claims 1 to 5, wherein the area of the longitudinal section of the air silencing channel formed by the silencing cover plate (2) and the bottom shell profiling recess (11) is 800-1500 mm2。
7. The bottom shell assembly of claim 6, wherein the air inlet (111) has an air inlet area of 3000-7000 mm2。
8. The bottom shell assembly as claimed in claim 7, wherein the air outlet area of the air outlet (21) is 2500-5000 mm2。
9. A bottom shell assembly according to claim 8, wherein said bottom shell profiled recess (11) has a depth of 5-20 cm; the thickness of the sound-absorbing material layer (3) is 5-30 mm.
10. A bottom shell assembly, as claimed in claim 9, wherein said air intake (111) is formed by a plurality of slots or a plurality of louvres; the air outlet (21) is formed by a plurality of strip-shaped openings, a plurality of round holes or a plurality of square holes.
11. A housing construction comprising a face assembly, a base assembly as claimed in any one of claims 1 to 10 and a sealing strip, the face assembly being connected to the base assembly by the sealing strip.
12. A heat exchange device, comprising a fan assembly and a housing structure as claimed in claim 11, the fan assembly being arranged within the housing structure at an air outlet opening (21) in the housing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857804.9A CN111947312A (en) | 2020-08-24 | 2020-08-24 | Bottom shell assembly, shell structure and heat exchange equipment applying bottom shell assembly and shell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857804.9A CN111947312A (en) | 2020-08-24 | 2020-08-24 | Bottom shell assembly, shell structure and heat exchange equipment applying bottom shell assembly and shell structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111947312A true CN111947312A (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010857804.9A Withdrawn CN111947312A (en) | 2020-08-24 | 2020-08-24 | Bottom shell assembly, shell structure and heat exchange equipment applying bottom shell assembly and shell structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN111947312A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140127546A (en) * | 2013-04-25 | 2014-11-04 | 린나이코리아 주식회사 | Masking noise apparatus for hanging boiler |
| CN109340730A (en) * | 2018-11-20 | 2019-02-15 | 连云港长锦电力设备有限公司 | Silencer and the boiler for applying it |
| CN109764467A (en) * | 2019-01-10 | 2019-05-17 | 四川三元环境治理股份有限公司 | A kind of window fresh air purifier of sound insulation and noise reducing |
| CN209147456U (en) * | 2018-10-26 | 2019-07-23 | 华帝股份有限公司 | Noise reduction structure for gas water heater and gas water heater |
| CN212902039U (en) * | 2020-08-24 | 2021-04-06 | 华帝股份有限公司 | Bottom shell assembly, shell structure and heat exchange equipment applying bottom shell assembly and shell structure |
-
2020
- 2020-08-24 CN CN202010857804.9A patent/CN111947312A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140127546A (en) * | 2013-04-25 | 2014-11-04 | 린나이코리아 주식회사 | Masking noise apparatus for hanging boiler |
| CN209147456U (en) * | 2018-10-26 | 2019-07-23 | 华帝股份有限公司 | Noise reduction structure for gas water heater and gas water heater |
| CN109340730A (en) * | 2018-11-20 | 2019-02-15 | 连云港长锦电力设备有限公司 | Silencer and the boiler for applying it |
| CN109764467A (en) * | 2019-01-10 | 2019-05-17 | 四川三元环境治理股份有限公司 | A kind of window fresh air purifier of sound insulation and noise reducing |
| CN212902039U (en) * | 2020-08-24 | 2021-04-06 | 华帝股份有限公司 | Bottom shell assembly, shell structure and heat exchange equipment applying bottom shell assembly and shell structure |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201117 |
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| WW01 | Invention patent application withdrawn after publication |