CN109548389A - A kind of portable power amplification device with heat sinking function - Google Patents
A kind of portable power amplification device with heat sinking function Download PDFInfo
- Publication number
- CN109548389A CN109548389A CN201910013370.1A CN201910013370A CN109548389A CN 109548389 A CN109548389 A CN 109548389A CN 201910013370 A CN201910013370 A CN 201910013370A CN 109548389 A CN109548389 A CN 109548389A
- Authority
- CN
- China
- Prior art keywords
- shell
- cooling mechanism
- amplification device
- sinking function
- power amplification
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Amplifiers (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a kind of portable power amplification device with heat sinking function, it is related to power amplifying device technical field, the power amplification device includes shell, cooling mechanism and rechargeable power supply, cooling mechanism is arranged in shell lower end, shell includes shell and inner casing, shell and inner casing constitute the cavity for uniformly placing several ventilation ducts, ventilation duct lower end is connected to cooling mechanism, inner casing constitutes the cavity for placing built-in power amplifier components, cavity upper end is equipped with filter sound mesh enclosure, and top and the bottom are symmetrically arranged with restraint zone and restraint zone once on one respectively at left and right sides of shell.In order to solve the problems, such as power amplifier poor heat radiation and inconvenient to carry during the work time, cooling mechanism is connected to by the present invention by ventilation duct with dust cover to radiate, device is carried on the back in both shoulders or is fastened on waist by the restraint zone that can carry out eye-splice connection by the way that the multiple groups of housing side are arranged in simultaneously, with good heat dissipation effect, it is easy to carry simultaneously, it has a vast market foreground.
Description
Technical field
The present invention relates to power amplifying device technical field, specifically a kind of portable power amplification device with heat sinking function.
Background technique
Power amplifier abbreviation power amplifier, is commonly called as " sound amplifier ", amplifies as the ultra-weak electronic signal from signal source
Most basic equipment is made a sound with drive the speaker, and there is highly important status in the acoustic system.
Wherein, power amplifier inevitably generates heat during the work time, if for power amplifier without heat-dissipating pipe
Reason, is easy to cause the operating temperature of equipment excessively high and influences performance, meanwhile, traditional power amplification device usually requires hand to carry,
Lead to not liberation both hands and carry out other activities, increases physical demands, carrying is inconvenient.
Therefore, the problem of designing a kind of portable power amplification device with heat sinking function, becoming urgent need to resolve.
Summary of the invention
The purpose of the present invention is to provide a kind of portable power amplification device with heat sinking function, to solve above-mentioned background skill
Cooling mechanism is connected to dust cover and then radiates by the problem of proposing in art, ventilation duct, while by being arranged in shell side
Device is carried on the back in both shoulders or is fastened on waist by the restraint zone that the multiple groups in face can carry out eye-splice connection, has good heat dissipation effect
Fruit, at the same it is easy to carry.
To achieve the above object, the invention provides the following technical scheme:
A kind of portable power amplification device with heat sinking function, including for placing built-in power amplifier components shell, for internal
The cooling mechanism that power amplifier components radiate and the rechargeable power supply for being powered to built-in power amplifier components are set, it is described to dissipate
In shell lower end, rechargeable power supply is arranged in shell leading flank the setting of heat engine structure, which is characterized in that the shell include shell with
Inner casing, shell and inner casing constitute the cavity for uniformly placing several ventilation ducts, and ventilation duct lower end is connected to cooling mechanism, and
Ventilation duct upper end is connected to the dust cover that shell upper end is arranged in, and inner casing constitutes the cavity for placing built-in power amplifier components, empty
Chamber upper end is equipped with filter sound mesh enclosure, and top is symmetrically arranged with restraint zone on one at left and right sides of shell, and lower part is symmetrically set at left and right sides of shell
There is restraint zone, and one end of lower restraint zone and upper restraint zone is equipped with eye-splice；Power amplifier components are internally set by rechargeable power supply
It is powered, and then the ultra-weak electronic signal from signal source is amplified to make a sound with drive the speaker and completes power amplifier；It is logical
It crosses dust cover and effective dust is carried out to ventilation duct, reduce influence of the external dust to ventilation duct and cooling mechanism, effectively improve
The stability of radiation processes；It can be improved the clarity of sound by filter sound mesh enclosure and reduce noise, effectively increase power amplifier
Effect；By the work of fan, ventilation duct is blowed and takes away the heat that built-in power amplifier components work generates, is conducive to improve
Heat dissipation effect can effectively prevent overheat to cause to influence power amplifier performance；Can also by the left of shell lower restraint zone and upper fastening
Band carries out eye-splice connection by eye-splice, and the lower restraint zone on the right side of shell is similarly crossed eye-splice with upper fastening band logical and carries out eye-splice company
It connects, and then form Braces hanged over tow shoulders to carry on the back device in both shoulders, is carried without using hand, both hands can be liberated and carry out other work
It is dynamic, while reducing physical demands, it is easy to carry.
As a further solution of the present invention: the ventilation duct is spiral element.
As further scheme of the invention: the dust cover is equipped with sieve.
As the present invention further scheme: the cooling mechanism includes cooling mechanism main body, in cooling mechanism main body
Several are uniformly provided with for placing the blowing chamber of fan, blowing chamber upper end is connected to ventilation duct.
As further scheme of the invention: the lower restraint zone is equipped with the pouch for storing.
As further scheme of the invention: being additionally provided on the rechargeable power supply for controlling charging type electric source switch
Switch；By the work of the rechargeable power supply of switch control, and then it can control the work of built-in power amplifier components.
As further scheme of the invention: the lower end of the cooling mechanism is uniformly provided with several non-slipping blocks；It is described
The material of non-slipping block is rubber；The built-in power amplifier components of shell and its inside can be placed on the ground, be had by non-slipping block
Effect is reduced in the device course of work and is slided because of caused by vibration, improves the stability of work.
A kind of sound system comprising the above-mentioned portable power amplification device with heat sinking function.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is provided with the cooling mechanism for radiating to built-in power amplifier components, by cooling mechanism and is prevented by ventilation duct
Dust hood is connected to and then radiates, while the multiple groups by the way that housing side is arranged in can carry out the restraint zone of eye-splice connection and will fill
It sets back and in both shoulders or is fastened on waist, solve the problems, such as power amplifier poor heat radiation and inconvenient to carry during the work time, have good
Good heat dissipation effect, it is easy to carry, it has a vast market foreground.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the portable power amplification device with heat sinking function.
Fig. 2 is the Structure of cross section schematic diagram of the portable power amplification device with heat sinking function.
Fig. 3 is the structural schematic diagram of cooling mechanism in the portable power amplification device with heat sinking function.
Fig. 4 is the structural schematic diagram of ventilation duct in the portable power amplification device with heat sinking function.
Fig. 5 is the structural schematic diagram of dust cover in the portable power amplification device with heat sinking function.
In figure: restraint zone, the upper restraint zone of 5-, 6- dust cover, 7- filter sound under 1- shell, 2- cooling mechanism, 3- pouch, 4-
The rechargeable power supply of mesh enclosure, 8-, 9- cavity, 10- cavity, power amplifier components built in 11-, 12- ventilation duct, 13- cooling mechanism main body,
14- blowing chamber, 15- fan, 16- sieve, 17- switch, 18- shell, 19- inner casing, 20- non-slipping block, 21- eye-splice.
Specific embodiment
Present invention will be explained in further detail in the following with reference to the drawings and specific embodiments.Following embodiment will be helpful to
Those skilled in the art further understands the present invention, but the invention is not limited in any way.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the inventive concept of the premise, various modifications and improvements can be made.These
Protection garden of the invention is belonged to enclose.
Embodiment 1
Please refer to Fig. 1-5, a kind of portable power amplification device with heat sinking function, including for placing built-in power amplifier components 11
Shell 1, the cooling mechanism 2 for radiating to built-in power amplifier components 11 and for being powered to built-in power amplifier components 11
Rechargeable power supply 8, the cooling mechanism 2 setting in 1 lower end of shell, the rechargeable setting of power supply 8 in 1 leading flank of shell,
Built-in power amplifier components 11 are powered by rechargeable power supply 8, and then the ultra-weak electronic signal from signal source is amplified
It is made a sound with drive the speaker and completes power amplifier；
In order to solve power amplifier during the work time because poor heat radiation be easy to cause equipment operating temperature it is excessively high due to influence performance
Problem, the shell 1 include shell 18 and inner casing 19, and the shell 18 is constituted with inner casing 19 for uniformly placing several ventilations
The cavity 9 of pipe 12, the ventilation duct 12 are spiral element, and 12 lower end of ventilation duct is connected to cooling mechanism 2, and ventilation duct 12
Upper end is connected to the dust cover 6 that 1 upper end of shell is arranged in, and the dust cover 6 is equipped with sieve 16, is divulged information by 6 Duis of dust cover
Pipe 12 carries out effective dust, reduces influence of the external dust to ventilation duct 12 and cooling mechanism 2, effectively increases radiation processes
Stability, the inner casing 19 constitutes the cavity 10 for placing built-in power amplifier components 11, and 10 upper end of cavity is equipped with filter sound
Mesh enclosure 7 can be improved the clarity of sound by filter sound mesh enclosure 7 and reduce noise, effectively increases power amplifier effect, the heat dissipation
Mechanism 2 includes cooling mechanism main body 13, several are uniformly provided in the cooling mechanism main body 13 for placing blowing for fan 15
Air compartment 14,14 upper end of blowing chamber is connected to ventilation duct 12, in the present embodiment, joins ZLU04- in the model of the fan 15
100, fan 15 is powered by rechargeable power supply 8, and then drive the work of fan 15, band is blowed to ventilation duct 12
The movement of air-flow can be effectively increased since ventilation duct 12 is spiral element by walking the heat that the built-in work of power amplifier components 11 generates
Distance, and then heat swap time can be improved, be conducive to improve heat dissipation effect, can effectively play heat dissipation effect prevents from overheating
Cause to influence power amplifier performance；
In order to solve traditional power amplification device usually require hand come it is inconvenient to carry caused by carrying, both hands can not be liberated carry out it
The problem of his activity, 1 left and right sides top of shell is symmetrically arranged with restraint zone 5 on one, 1 left and right sides lower part pair of shell
Claim to be equipped with restraint zone 4, and one end of lower restraint zone 4 and upper restraint zone 5 is equipped with eye-splice 21, the upper restraint zone 5 is by inserting
Button 21 carries out eye-splice connection, and then can be fastened on the waist of human body, and similarly, the lower restraint zone 4 is carried out slotting by eye-splice 21
Button connection, and then device can be fastened on to the waist of human body, by dual fastening, carrying stability is effectively increased, is not necessarily to
It is carried using hand, both hands can be liberated and carry out other activities, while reducing physical demands, it is easy to carry；
Further, the lower restraint zone 4 in 1 left side of shell and upper restraint zone 5 can also be subjected to eye-splice connection by eye-splice 21, together
The lower restraint zone 4 on 1 right side of shell and upper restraint zone 5 are carried out eye-splice connection by eye-splice 21 by reason, and then forming Braces hanged over tow shoulders can
It carrying on the back device in both shoulders, is carried without using hand, both hands can be liberated and carry out other activities, while reducing physical strength and disappearing
Consumption, it is easy to carry；
Preferably, the lower restraint zone 4 be equipped with for storing pouch 3, due to be arranged in two sides rather than back, can
Easily to take out storing from storage bag 4 with hand, use is very convenient, is additionally provided on the rechargeable power supply 8 and fills for controlling
The switch 17 that electric-type power supply 8 switchs, the work of rechargeable power supply 8 is controlled by switch 17, and then can control built-in power amplifier group
The work of part 11；
Preferably, the lower end of the cooling mechanism 2 is uniformly provided with several non-slipping blocks 20, can be by shell 1 by non-slipping block 20
And its internal built-in power amplifier components 11 are placed on the ground, and are effectively reduced sliding because of caused by vibration in the device course of work
It is dynamic, the stability of work is improved, the specific material of the non-slipping block 20 is without restriction, can be rubber, metal, engineering plastics
Deng in the present embodiment, it is preferred that the material of the non-slipping block 20 is rubber；
Part is not directed in the device to be the same as those in the prior art or can be realized by using the prior art.
In this implementation, a kind of sound system comprising the above-mentioned portable power amplification device with heat sinking function.
Embodiment 2
Also referring to shown in Fig. 1, Fig. 2 and Fig. 3, a kind of portable power amplification device with heat sinking function, including for placing
The shell 1 of built-in power amplifier components 11, the cooling mechanism 2 for radiating to built-in power amplifier components 11 and for built-in function
The rechargeable power supply 8 that component 11 is powered is put, the cooling mechanism 2 is arranged in 1 lower end of shell, and the rechargeable power supply 8 is set
It sets in 1 leading flank of shell, built-in power amplifier components 11 is powered by rechargeable power supply 8, and then from the micro- of signal source
Weak electric signal, which amplifies to make a sound with drive the speaker, completes power amplifier；
In order to solve power amplifier during the work time because poor heat radiation be easy to cause equipment operating temperature it is excessively high due to influence performance
Problem, the shell 1 include shell 18 and inner casing 19, and the shell 18 is constituted with inner casing 19 for uniformly placing several ventilations
The cavity 9 of pipe 12,12 lower end of ventilation duct are connected to cooling mechanism 2, and 12 upper end of ventilation duct and 1 upper end of shell are arranged in
Dust cover 6 is connected to, and the dust cover 6 is equipped with sieve 16, is carried out effective dust to ventilation duct 12 by dust cover 6, is reduced outer
Influence of portion's dust to ventilation duct 12 and cooling mechanism 2, effectively increases the stability of radiation processes, and the inner casing 19 is constituted
For placing the cavity 10 of built-in power amplifier components 11,10 upper end of cavity is equipped with filter sound mesh enclosure 7, can by filter sound mesh enclosure 7
It improves the clarity of sound and reduces noise, effectively increase power amplifier effect, the cooling mechanism 2 includes cooling mechanism main body
13, several are uniformly provided in the cooling mechanism main body 13 for placing the blowing chamber 14 of fan 15, in the blowing chamber 14
End is connected to ventilation duct 12, in the present embodiment, joins ZLU04-100 in the model of the fan 15, right by rechargeable power supply 8
Fan 15 is powered, and then drives the work of fan 15, is blowed to ventilation duct 12 and is taken away the built-in work of power amplifier components 11
The heat of generation is conducive to improve heat dissipation effect, and can effectively play heat dissipation effect prevents overheat from causing to influence power amplifier performance；
In order to solve traditional power amplification device usually require hand come it is inconvenient to carry caused by carrying, both hands can not be liberated carry out it
The problem of his activity, 1 left and right sides top of shell is symmetrically arranged with restraint zone 5 on one, 1 left and right sides lower part pair of shell
Claim to be equipped with restraint zone 4, and one end of lower restraint zone 4 and upper restraint zone 5 is equipped with eye-splice 21, it can will be under 1 left side of shell
Restraint zone 4 and upper restraint zone 5 are by the progress eye-splice connection of eye-splice 21, similarly by the lower restraint zone 4 and upper restraint zone on 1 right side of shell
5 carry out eye-splice connection by eye-splice 21, and then formation Braces hanged over tow shoulders can carry on the back device in both shoulders, carry without using hand,
Both hands can be liberated and carry out other activities, while reducing physical demands, it is easy to carry；
Preferably, the lower restraint zone 4 be equipped with for storing pouch 3, due to be arranged in two sides rather than back, can
Easily to take out storing from storage bag 4 with hand, use is very convenient, is additionally provided on the rechargeable power supply 8 and fills for controlling
The switch 17 that electric-type power supply 8 switchs, the work of rechargeable power supply 8 is controlled by switch 17, and then can control built-in power amplifier group
The work of part 11；
Preferably, the lower end of the cooling mechanism 2 is uniformly provided with several non-slipping blocks 20, can be by shell 1 by non-slipping block 20
And its internal built-in power amplifier components 11 are placed on the ground, and are effectively reduced sliding because of caused by vibration in the device course of work
It is dynamic, improve the stability of work；
Part is not directed in the device to be the same as those in the prior art or can be realized by using the prior art.
In this implementation, a kind of sound system comprising the above-mentioned portable power amplification device with heat sinking function.
The working principle of the invention is: being powered by rechargeable power supply 8 to built-in power amplifier components 11, and then handle comes from
The ultra-weak electronic signal of signal source, which amplifies to make a sound with drive the speaker, completes power amplifier；By dust cover 6 to ventilation duct 12
Effective dust is carried out, influence of the external dust to ventilation duct 12 and cooling mechanism 2 is reduced, effectively increases the steady of radiation processes
It is qualitative；It can be improved the clarity of sound by filter sound mesh enclosure 7 and reduce noise, effectively increase power amplifier effect；Pass through fan
15 work is blowed ventilation duct 12 and takes away the heat that the built-in work of power amplifier components 11 generates, and is conducive to improve heat dissipation effect
Fruit can effectively prevent overheat to cause to influence power amplifier performance；The lower restraint zone 4 in 1 left side of shell can also be led to upper restraint zone 5
It crosses eye-splice 21 and carries out eye-splice connection, the lower restraint zone 4 on 1 right side of shell and upper restraint zone 5 are similarly subjected to eye-splice by eye-splice 21
Connection, and then formation Braces hanged over tow shoulders can carry on the back device in both shoulders, carry without using hand, can liberate both hands and carry out other
Activity, while reducing physical demands, it is easy to carry.
The beneficial effects of the present invention are: the present apparatus is provided with the cooling mechanism for radiating to built-in power amplifier components,
Cooling mechanism is connected to dust cover by ventilation duct and is radiated, while the multiple groups by the way that housing side is arranged in can be into
Device is carried on the back in both shoulders or is fastened on waist by the restraint zone of row eye-splice connection, solves power amplifier poor heat radiation during the work time
And problem inconvenient to carry, there is good heat dissipation effect, it is easy to carry, it has a vast market foreground.
Better embodiment of the invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be without departing from the purpose of the present invention
Various changes can be made.There is no necessity and possibility to exhaust all the enbodiments.And it thus amplifies out apparent
Variation or variation be still in the protection scope of this invention.
Claims (9)
1. a kind of portable power amplification device with heat sinking function, including for placing built-in power amplifier components (11) shell (1),
Cooling mechanism (2) for radiating to built-in power amplifier components (11) and for being powered to built-in power amplifier components (11)
Rechargeable power supply (8), the cooling mechanism (2) setting is arranged before shell (1) in shell (1) lower end, rechargeable power supply (8)
Side, which is characterized in that the shell (1) includes shell (18) and inner casing (19), and shell (18) is constituted with inner casing (19) and is used for
The cavity (9) of several ventilation ducts (12) is uniformly placed, ventilation duct (12) lower end is connected to cooling mechanism (2), and ventilation duct
(12) dust cover (6) of the upper end with setting in shell (1) upper end is connected to；
The inner casing (19) constitutes the cavity (10) for placing built-in power amplifier components (11), and cavity (10) upper end is equipped with filter sound net
It covers (7)；
Top is symmetrically arranged with restraint zone on one (5) at left and right sides of the shell (1), and lower part is symmetrically arranged at left and right sides of shell (1)
Restraint zone (4) once, and one end of lower restraint zone (4) and upper restraint zone (5) is equipped with eye-splice (21).
2. the portable power amplification device according to claim 1 with heat sinking function, which is characterized in that the ventilation duct
It (12) is spiral element.
3. the portable power amplification device according to claim 1 or 2 with heat sinking function, which is characterized in that described dust-proof
It covers (6) and is equipped with sieve (16).
4. the portable power amplification device according to claim 3 with heat sinking function, which is characterized in that the cooling mechanism
(2) include cooling mechanism main body (13), several are uniformly provided in cooling mechanism main body (13) for placing blowing for fan (15)
Air compartment (14), blowing chamber (14) upper end are connected to ventilation duct (12).
5. the portable power amplification device according to claim 4 with heat sinking function, which is characterized in that the lower restraint zone
(4) it is equipped with the pouch (3) for storing.
6. the portable power amplification device according to claim 5 with heat sinking function, which is characterized in that the charging type electric
The switch (17) for controlling rechargeable power supply (8) switch is additionally provided on source (8).
7. the portable power amplification device according to claim 6 with heat sinking function, which is characterized in that the cooling mechanism
(2) lower end is uniformly provided with several non-slipping blocks (20).
8. the portable power amplification device according to claim 7 with heat sinking function, which is characterized in that the non-slipping block
(20) material is rubber.
9. a kind of sound system, which is characterized in that comprising a method as claimed in any one of claims 1-8 portable with heat sinking function
Power amplification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910013370.1A CN109548389A (en) | 2019-01-07 | 2019-01-07 | A kind of portable power amplification device with heat sinking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910013370.1A CN109548389A (en) | 2019-01-07 | 2019-01-07 | A kind of portable power amplification device with heat sinking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109548389A true CN109548389A (en) | 2019-03-29 |
Family
ID=65834486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910013370.1A Pending CN109548389A (en) | 2019-01-07 | 2019-01-07 | A kind of portable power amplification device with heat sinking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109548389A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533132A (en) * | 1995-01-23 | 1996-07-02 | Jbl Incorporated | Loudspeaker thermal management structure |
| CN202260790U (en) * | 2011-09-23 | 2012-05-30 | 宁波菲仕电机技术有限公司 | Air-cooling device of servo motor |
| CN207706405U (en) * | 2017-12-22 | 2018-08-07 | 广州市宾科科技有限公司 | A kind of Portable multifunctional sound device |
| CN208079354U (en) * | 2017-12-30 | 2018-11-09 | 广州市天博音响科技有限公司 | A kind of sound equipment with lighting function |
| CN208318534U (en) * | 2018-05-22 | 2019-01-04 | 重庆青年职业技术学院 | A kind of tourist party's central-decentralized management device |
-
2019
- 2019-01-07 CN CN201910013370.1A patent/CN109548389A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533132A (en) * | 1995-01-23 | 1996-07-02 | Jbl Incorporated | Loudspeaker thermal management structure |
| CN202260790U (en) * | 2011-09-23 | 2012-05-30 | 宁波菲仕电机技术有限公司 | Air-cooling device of servo motor |
| CN207706405U (en) * | 2017-12-22 | 2018-08-07 | 广州市宾科科技有限公司 | A kind of Portable multifunctional sound device |
| CN208079354U (en) * | 2017-12-30 | 2018-11-09 | 广州市天博音响科技有限公司 | A kind of sound equipment with lighting function |
| CN208318534U (en) * | 2018-05-22 | 2019-01-04 | 重庆青年职业技术学院 | A kind of tourist party's central-decentralized management device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209012144U (en) | A kind of computer denoising device | |
| DE69529896D1 (en) | SILENT AIR-COOLED CALCULATOR | |
| CN205408108U (en) | Headphone of built -in fan cooling | |
| CN213205828U (en) | Low-noise box type diesel generator set | |
| WO2012079395A1 (en) | Laser and infrared photon acupuncture instrument output head and acupuncture instrument | |
| CN109548389A (en) | A kind of portable power amplification device with heat sinking function | |
| KR200389555Y1 (en) | Air cooling vest | |
| CN208016956U (en) | A kind of novel infectious disease protective cover | |
| CN207799576U (en) | A kind of hard-disc fixing holder in Computer Architecture | |
| CN208335116U (en) | A kind of notebook computer multifunctional radiator | |
| CN206610203U (en) | A kind of small size Wearable computer chassis | |
| CN206671947U (en) | A kind of notebook computer casing | |
| CN207096891U (en) | A kind of computer cabinet with high efficient heat dissipation performance | |
| CN109524032A (en) | A kind of hard disc of computer heat-dissipating casing | |
| CN206077649U (en) | A kind of headband receiver with fan | |
| CN212969982U (en) | Ultra-long distance Bluetooth sound box convenient to carry | |
| CN208174911U (en) | A kind of closed active audio amplifier | |
| CN206649414U (en) | A kind of portable computer housing for modern office | |
| CN207835758U (en) | A kind of wireless acoustics lamp | |
| CN207301892U (en) | A kind of computer cabinet | |
| CN220874682U (en) | Indoor microphone with feedback suppressor | |
| CN207706405U (en) | A kind of Portable multifunctional sound device | |
| CN207399485U (en) | A kind of energy saving speaker | |
| CN210781229U (en) | Portable dustproof sound box | |
| CN206603728U (en) | A kind of portable except mite instrument of anti-scattered thermal chokes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190329 |