CN205987681U - High -efficient heat dissipation signal collector - Google Patents
High -efficient heat dissipation signal collector Download PDFInfo
- Publication number
- CN205987681U CN205987681U CN201620949228.XU CN201620949228U CN205987681U CN 205987681 U CN205987681 U CN 205987681U CN 201620949228 U CN201620949228 U CN 201620949228U CN 205987681 U CN205987681 U CN 205987681U
- Authority
- CN
- China
- Prior art keywords
- signal
- box body
- admission line
- processing apparatus
- signal acquisition
- 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.)
- Expired - Fee Related
Links
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model relates to a high -efficient heat dissipation signal collector, improve to current signal collector structure, introduce intelligent automatically controlled solution, combine the air -compression refrigeration principle, design admission line group, through each both ends bore inconsistent admission line (10), under the miniature fan of design (9) working air flow's effect, introduce outside ambient air, and compress cooling operation, last hollow out construction outward transportation by box body (5) opposite side, obtain powerfully from this, and microthermal cold air, realize the cooling operation to signal acquisition and processing device (6), and obtaining a heat radiation effect, guarantee the real work performance of signal acquisition and processing device (6).
Description
Technical field
This utility model is related to a kind of high efficiency and heat radiation signal picker, belongs to signal picker technical field.
Background technology
Data acquisition (DAQ), refers to automatic data collection non-electrical from the analog- and digital- unit under test such as sensor, Devices to test
Amount or electric quantity signal, deliver in host computer and are analyzed, and process；With the continuous development of technical level of science and technology, data acquisition
Become requisite ingredient during the intelligent networks such as Internet of Things are built, and a large amount of with terminal units such as sensors
Application, signal picker arises at the historic moment, and signal picker is mainly used in receiving collection signal, and carries out successively for collection signal
Amplify, filter etc. optimization processing, then the signal through process operation being exported again and carry out subsequent treatment to host computer；But
, in actual application, also there is place not fully up to expectations a bit it is well known that electricity in signal picker of the prior art
Road components and parts work can produce substantial amounts of heat, and heat is a significant problem of impact circuit components service behaviour, too high
Temperature influence whether the service behaviour of power supply components and parts, how to carry out the temperature control that radiates, always concomitant circuit components and parts development
The problem that can not evade.
Content of the invention
Technical problem to be solved in the utility model is to provide one kind to improve for existing signal picker structure,
Introduce intelligent electric-controlled solution, in conjunction with air cycle refrigeration principle, radiating effect can be effectively improved it is ensured that service behaviour
High efficiency and heat radiation signal picker.
This utility model employs the following technical solutions to solve above-mentioned technical problem：This utility model devises a kind of height
Effect radiated signal harvester, adopts including power interface, power module, signal access interface, signal output interface, box body, signal
Collection processing meanss, wherein, power interface, signal access interface and signal output interface are separately positioned on box surface, power supply mould
Block and signal acquisition and processing apparatus are fixedly installed on tray interior, and the outfan of power interface is connected with the input of power module
Connect, the outfan of power module is connected with the power taking end of signal acquisition and processing apparatus, the outfan of signal access interface and letter
The input of number acquisition processing device is connected, the input phase of the outfan of signal acquisition and processing apparatus and signal output interface
Connect；Also include admission line group, control module, and be connected with control module respectively temperature sensor, mini-fan,
The outfan of power module is connected with the power taking end of control module, and power module is respectively temperature sensing through control module
Device, mini-fan are powered；Control module and temperature sensor are fixedly installed in box body, and box surface is corresponding internal set
The position of signal acquisition and processing apparatus arranges at least one through hole, and each through hole runs through place box surface, admission line group bag
Include a simply admission line, the quantity of admission line is equal with the quantity of through hole set by box surface, each admission line divides
Not each through hole does not correspond, and each admission line both ends open is mutually communicated, and the bore of each admission line wherein one end
More than 2 times of other end bore, the small-bore external diameter of one end of each admission line is adapted with the internal diameter phase of each through hole, each
Admission line, by box portion outside, is inserted in corresponding through hole towards the direction of corresponding through hole with its small-bore end respectively；Miniature
Fan is located in box body, and is arranged at the opposite side that signal acquisition and processing apparatus are relative to admission line group place side, mini-fan
Working air current dorsad signal acquisition and processing apparatus, the band of position setting hollow out of mini-fan set by the corresponding inside of box surface
Structure.
As a kind of optimal technical scheme of the present utility model：Described signal acquisition and processing apparatus include circuit board, and
Setting is sequentially connected the D/A converting circuit connecing, amplifying circuit and signal filter circuit on circuit boards, and wherein, described signal connects
The outfan of incoming interface is connected with the input of D/A converting circuit in signal acquisition and processing apparatus, signal acquisition and processing apparatus
The outfan of middle signal filter circuit is connected with the input of signal output interface.
As a kind of optimal technical scheme of the present utility model：Described mini-fan is Miniature brushless motor fan.
As a kind of optimal technical scheme of the present utility model：Described box body is made up of aluminum.
As a kind of optimal technical scheme of the present utility model：Described control module is single-chip microcomputer.
A kind of high efficiency and heat radiation signal picker described in the utility model adopts above technical scheme compared with prior art, tool
There is following technique effect：
（1）The high efficiency and heat radiation signal picker of this utility model design, improves for existing signal picker structure,
Introduce intelligent electric-controlled solution, in conjunction with air cycle refrigeration principle, design admission line group, differed by each two ends bore
The admission line causing, in the presence of designed mini-fan working air current, introduces ambient air outside, and is compressed lowering the temperature
Operation, is finally outwards conveyed by the engraved structure of box body opposite side, is derived from powerful and low temperature cold air, for signal
Acquisition processing device realizes cooling operation, reaches radiating effect it is ensured that the real work performance of signal acquisition and processing apparatus；
（2）In the high efficiency and heat radiation signal picker of this utility model design, for signal acquisition and processing apparatus, set further
Meter all includes circuit board, and setting is sequentially connected the D/A converting circuit connecing, amplifying circuit and signal filtering on circuit boards
Circuit, wherein, the input phase of the outfan of described signal access interface and D/A converting circuit in signal acquisition and processing apparatus
Connect, in signal acquisition and processing apparatus, the outfan of signal filter circuit is connected with the input of signal output interface, so,
Provide more accurate, more stable data acquisition method for signal collected；
（3）In the high efficiency and heat radiation signal picker of this utility model design, for mini-fan, it is designed with micro- further
Type brushless motor fan so that high efficiency and heat radiation signal picker designed by this utility model is in practical work process, Neng Goushi
Existing quiet work, both ensure that the high efficiency and heat radiation effect that designed high efficiency and heat radiation signal picker has, can guarantee that its work again
Process of making does not impact to surrounding, embodies the human oriented design in design process；
（4）In the high efficiency and heat radiation signal picker of this utility model design, for box body, adopt aluminum further and make,
On the one hand the flintiness of shell can be improved, realize more safe and stable protection for interior arrangement, on the other hand can have
Radiating effect in actual application for the high efficiency and heat radiation signal picker designed by effect raising, is effectively ensured the steady of real work
Qualitative；
（5）In the high efficiency and heat radiation signal picker of this utility model design, for control module, it is designed with list further
Piece machine, on the one hand can be applied to the extension demand for designed high efficiency and heat radiation signal picker for the later stage, on the other hand, succinctly
The architecture mode that controls can be easy to the maintenance in later stage.
Brief description
Fig. 1 is the structural representation of high efficiency and heat radiation signal picker designed by this utility model.
Wherein, 1. power interface, 2. power module, 3. signal access interface, 4. signal output interface, 5. box body,
6. signal acquisition and processing apparatus, 7. control module, 8. temperature sensor, 9. mini-fan, 10. admission line.
Specific embodiment
With reference to Figure of description, specific embodiment of the present utility model is described in further detail.
As shown in figure 1, this utility model devises a kind of high efficiency and heat radiation signal picker, including power interface 1, power supply mould
Block 2, signal access interface 3, signal output interface 4, box body 5, signal acquisition and processing apparatus 6, wherein, power interface 1, signal connect
Incoming interface 3 and signal output interface 4 are separately positioned on box body 5 surface, and power module 2 and signal acquisition and processing apparatus 6 fixation set
Put inside box body 5, the outfan of power interface 1 is connected with the input of power module 2, the outfan of power module 2 with
The power taking end of signal acquisition and processing apparatus 6 is connected, and the outfan of signal access interface 3 is defeated with signal acquisition and processing apparatus 6
Enter end to be connected, the outfan of signal acquisition and processing apparatus 6 is connected with the input of signal output interface 4；Also include air inlet
Pipeline group, control module 7, and be connected with control module 7 respectively temperature sensor 8, mini-fan 9, power module 2
Outfan is connected with the power taking end of control module 7, and power module 2 is respectively temperature sensor 8, miniature through control module 7
Fan 9 is powered；Control module 7 and temperature sensor 8 are fixedly installed in box body 5, the corresponding internal set letter in box body 5 surface
The position of number acquisition processing device 6 arranges at least one through hole, and each through hole runs through place box body 5 surface, admission line group bag
Include a simply admission line 10, the quantity of admission line 10 is equal with the quantity of through hole set by box body 5 surface, each air inlet pipe
Each through hole corresponds respectively in road 10, and each admission line 10 both ends open is mutually communicated, and each admission line 10 is wherein
The bore of one end is more than 2 times of other end bore, the external diameter of the small-bore one end of each admission line 10 and the internal diameter of each through hole
Mutually be adapted, each admission line 10 by box body 5 outside, be inserted into towards the direction of corresponding through hole with its small-bore end respectively
In corresponding through hole；Mini-fan 9 is located in box body 5, and is arranged at signal acquisition and processing apparatus 6 admission line group place side relatively
Opposite side, working air current dorsad signal acquisition and processing apparatus 6 of mini-fan 9, miniature wind set by the corresponding inside in box body 5 surface
The band of position setting engraved structure of fan 9.High efficiency and heat radiation signal picker designed by technique scheme, for existing signal
Harvester structure improves, and introduces intelligent electric-controlled solution, in conjunction with air cycle refrigeration principle, designs admission line group,
By the inconsistent admission line 10 of each two ends bore, in the presence of designed mini-fan 9 working air current, introduce outside
Surrounding air, and be compressed cooling operation, finally outwards conveyed by the engraved structure of box body 5 opposite side, be derived from powerful,
And the cold air of low temperature, realize cooling operation for signal acquisition and processing apparatus 6, reach radiating effect it is ensured that at signals collecting
The real work performance of reason device 6.
On basis based on above-mentioned design high efficiency and heat radiation signal picker technical scheme, this utility model also sets further
Count following optimal technical scheme：For signal acquisition and processing apparatus 6, design further and all include circuit board, and be arranged on
The D/A converting circuit connecing, amplifying circuit and signal filter circuit are sequentially connected on circuit board, wherein, described signal access interface
3 outfan is connected with the input of D/A converting circuit in signal acquisition and processing apparatus 6, in signal acquisition and processing apparatus 6
The outfan of signal filter circuit is connected with the input of signal output interface 4, so, provides more for signal collected
Plus accurate, more stable data acquisition method；Also have and be directed to mini-fan 9, be designed with Miniature brushless motor wind further
Fan is so that high efficiency and heat radiation signal picker designed by this utility model, in practical work process, is capable of quiet work, both
Ensure that the high efficiency and heat radiation effect that designed high efficiency and heat radiation signal picker has, can guarantee that its work process not to surrounding again
Environment impacts, and embodies the human oriented design in design process；And it is directed to box body 5, and adopt aluminum further and make, one
Aspect can improve the flintiness of shell, realizes more safe and stable protection for interior arrangement, on the other hand can be effective
Radiating effect in actual application for the high efficiency and heat radiation signal picker designed by raising, is effectively ensured stablizing of real work
Property；Moreover, for control module 8, it is designed with single-chip microcomputer further, on the one hand can be applied to the later stage for designed
The extension demand of high efficiency and heat radiation signal picker, on the other hand, succinct control architecture mode can be easy to the maintenance in later stage.
This utility model devises high efficiency and heat radiation signal picker in the middle of actual application, specifically includes power interface
1st, power module 2, signal access interface 3, signal output interface 4, box body 5, signal acquisition and processing apparatus 6, wherein, box body 5 is
Aluminum is made, and power interface 1, signal access interface 3 and signal output interface 4 are separately positioned on box body 5 surface, power module
2 and signal acquisition and processing apparatus 6 be fixedly installed on inside box body 5, the input of the outfan of power interface 1 and power module 2
It is connected, the outfan of power module 2 is connected with the power taking end of signal acquisition and processing apparatus 6, the output of signal access interface 3
End is connected with the input of signal acquisition and processing apparatus 6, the outfan of signal acquisition and processing apparatus 6 and signal output interface 4
Input be connected；Also include admission line group, single-chip microcomputer, and the temperature sensor 8, micro- being connected with single-chip microcomputer respectively
Type brushless motor fan, the outfan of power module 2 is connected with the power taking end of single-chip microcomputer, and power module 2 divides through single-chip microcomputer
Wei temperature sensor 8, Miniature brushless motor fan not be powered；Single-chip microcomputer and temperature sensor 8 are fixedly installed on box body 5
In, set by the corresponding inside in box body 5 surface, the position of signal acquisition and processing apparatus 6 arranges at least one through hole, and each through hole runs through
Place box body 5 surface, admission line group includes a simply admission line 10, the quantity of admission line 10 and box body 5 surface institute
If the quantity of through hole is equal, each admission line 10 each through hole one-to-one corresponding respectively, each admission line 10 both ends open, phase
Mutually insertion, and the bore of each admission line 10 wherein one end is more than 2 times of other end bore, each admission line 10 is small-bore
The internal diameter phase of the external diameter of one end and each through hole is adapted, each admission line 10 by box body 5 outside, respectively with its small-caliber end
Portion is inserted in corresponding through hole towards the direction of corresponding through hole；Miniature brushless motor fan is located in box body 5, and is arranged at signal
The opposite side of acquisition processing device 6 admission line group place side relatively, the working air current dorsad signal of Miniature brushless motor fan
Acquisition processing device 6, the band of position setting engraved structure of Miniature brushless motor fan set by the corresponding inside in box body 5 surface.Real
In the application of border, for signal acquisition and processing apparatus 6, various structures design can be had, such as signal acquisition and processing apparatus 6 include
Circuit board, and setting be sequentially connected the D/A converting circuit connecing, amplifying circuit and signal filter circuit on circuit boards, its
In, the outfan of described signal access interface 3 is connected with the input of D/A converting circuit in signal acquisition and processing apparatus 6,
In signal acquisition and processing apparatus 6, the outfan of signal filter circuit is connected with the input of signal output interface 4.Practical application
In the middle of process, the external supply network of power interface 1 first carries out power taking, and is powered to power module 2, signal access interface
3 outer signal acquisition terminals, signal output interface 4 is connected with host computer；Then, in practical application, power module 2 is
Signal acquisition and processing apparatus 6 are powered, and signal acquisition and processing apparatus 6 are started working, and outer signal acquisition terminal will gather letter
Number being delivered to signal acquisition and processing apparatus 6 through signal access interface 3 is processed, and then signal acquisition and processing apparatus 6 will be processed
The signal crossed is delivered to host computer by signal output interface 4, and meanwhile, the temperature sensor 8 being arranged in box body 5 is real
When work, Real-time Collection obtains the temperature detection result in box body 5, and is uploaded to single-chip microcomputer, is directed to received by single-chip microcomputer
Temperature detection result be analyzed, and do corresponding control operation, wherein, but temperature detection result is less than preset temperature threshold value
When, then single-chip microcomputer does not do any further control operation；When temperature detection result is more than or equal to preset temperature threshold value, then single
Piece machine controls connected Miniature brushless motor fan to start working, due to the work gas of Miniature brushless motor fan immediately
Stream dorsad signal acquisition and processing apparatus 6, then the air in external environment condition under the effect of Miniature brushless motor fan, by admission line
Each admission line 10 in group enters box body 5, during this, due to each admission line 10 both ends open, is mutually communicated,
And the bore of each admission line 10 wherein one end is more than 2 times of other end bore, each admission line 10 by box body 5 outside,
It is inserted in corresponding through hole towards the direction of corresponding through hole with its small-bore end respectively, then the air in external environment condition is by each
Root admission line 10 heavy caliber one end enters, and flows to small-bore one end, this process it is achieved that compression for air, by
This brings the cooling for air, and the cooling air being entered within box body 5 by each admission line 10 in admission line group is straight
Connect and blow to signal acquisition and processing apparatus 6, realize the cooling for signal acquisition and processing apparatus 6, then by engraving on box body 5 another side
In the middle of hollow structure row's external environment, so realize the heat discharging operation for signal acquisition and processing apparatus 6 work calorieses, above-mentioned
While execution radiating and cooling operation, if the change of single-chip microcomputer obtained temperature detection result is less than preset temperature threshold value, monolithic
Machine controls connected Miniature brushless motor fan to quit work immediately.
Above in conjunction with accompanying drawing, embodiment of the present utility model is explained in detail, but this utility model is not limited to
Above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also be without departing from this utility model
Make a variety of changes on the premise of objective.
Claims (5)
1. a kind of high efficiency and heat radiation signal picker, including power interface（1）, power module（2）, signal access interface（3）, signal
Output interface（4）, box body（5）, signal acquisition and processing apparatus（6）, wherein, power interface（1）, signal access interface（3）And letter
Number output interface（4）It is separately positioned on box body（5）Surface, power module（2）And signal acquisition and processing apparatus（6）It is fixedly installed on
Box body（5）Inside, power interface（1）Outfan and power module（2）Input be connected, power module（2）Output
End and signal acquisition and processing apparatus（6）Power taking end be connected, signal access interface（3）Outfan and signal acquisition process fill
Put（6）Input be connected, signal acquisition and processing apparatus（6）Outfan and signal output interface（4）Input be connected
Connect；It is characterized in that：Also include admission line group, control module（7）, and respectively with control module（7）The temperature being connected
Sensor（8）, mini-fan（9）, power module（2）Outfan and control module（7）Power taking end be connected, power module
（2）Through control module（7）It is respectively temperature sensor（8）, mini-fan（9）It is powered；Control module（7）Pass with temperature
Sensor（8）It is fixedly installed on box body（5）In, box body（5）Signal acquisition and processing apparatus set by the corresponding inside in surface（6）Position set
Put at least one through hole, each through hole runs through place box body（5）Surface, admission line group includes a simply admission line
（10）, admission line（10）Quantity and box body（5）The quantity of through hole set by surface is equal, each admission line（10）Each respectively
Individual through hole corresponds, each admission line（10）Both ends open, is mutually communicated, and each admission line（10）Wherein one end
Bore is more than 2 times of other end bore, each admission line（10）The internal diameter phase phase of the external diameter of small-bore one end and each through hole
Adapt to, each admission line（10）By box body（5）Outside, is inserted into towards the direction of corresponding through hole with its small-bore end respectively
In corresponding through hole；Mini-fan（9）Positioned at box body（5）In, and it is arranged at signal acquisition and processing apparatus（6）Admission line group relatively
The opposite side of place side, mini-fan（9）Working air current dorsad signal acquisition and processing apparatus（6）, box body（5）In surface is corresponding
Mini-fan set by portion（9）The band of position setting engraved structure.
2. according to claim 1 a kind of high efficiency and heat radiation signal picker it is characterised in that：Described signal acquisition and processing apparatus
（6）Including circuit board, and setting is sequentially connected the D/A converting circuit connecing, amplifying circuit and signal filtering electricity on circuit boards
Road, wherein, described signal access interface（3）Outfan and signal acquisition and processing apparatus（6）The input of middle D/A converting circuit
End is connected, signal acquisition and processing apparatus（6）The outfan of middle signal filter circuit and signal output interface（4）Input phase
Connect.
3. according to claim 1 a kind of high efficiency and heat radiation signal picker it is characterised in that：Described mini-fan（9）For micro-
Type brushless motor fan.
4. according to claim 1 a kind of high efficiency and heat radiation signal picker it is characterised in that：Described box body（5）For aluminum
Make.
5. according to claim 1 a kind of high efficiency and heat radiation signal picker it is characterised in that：Described control module（7）For list
Piece machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620949228.XU CN205987681U (en) | 2016-08-26 | 2016-08-26 | High -efficient heat dissipation signal collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620949228.XU CN205987681U (en) | 2016-08-26 | 2016-08-26 | High -efficient heat dissipation signal collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205987681U true CN205987681U (en) | 2017-02-22 |
Family
ID=58036021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620949228.XU Expired - Fee Related CN205987681U (en) | 2016-08-26 | 2016-08-26 | High -efficient heat dissipation signal collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205987681U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106132179A (en) * | 2016-08-26 | 2016-11-16 | 苏州盖恩茨电子科技有限公司 | A kind of high efficiency and heat radiation signal picker |
| CN108668502A (en) * | 2018-03-30 | 2018-10-16 | 苏州诺登德智能科技有限公司 | A kind of full width radiates gateway apparatus through ventilated type |
| CN109068542A (en) * | 2018-08-30 | 2018-12-21 | 歌尔科技有限公司 | A kind of radiator and the intelligent video camera head with the radiator |
| CN109246738A (en) * | 2017-05-27 | 2019-01-18 | 上海共联通信信息发展有限公司 | A kind of communication base station interference data collecting vehicle |
-
2016
- 2016-08-26 CN CN201620949228.XU patent/CN205987681U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106132179A (en) * | 2016-08-26 | 2016-11-16 | 苏州盖恩茨电子科技有限公司 | A kind of high efficiency and heat radiation signal picker |
| CN109246738A (en) * | 2017-05-27 | 2019-01-18 | 上海共联通信信息发展有限公司 | A kind of communication base station interference data collecting vehicle |
| CN108668502A (en) * | 2018-03-30 | 2018-10-16 | 苏州诺登德智能科技有限公司 | A kind of full width radiates gateway apparatus through ventilated type |
| CN109068542A (en) * | 2018-08-30 | 2018-12-21 | 歌尔科技有限公司 | A kind of radiator and the intelligent video camera head with the radiator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205987681U (en) | High -efficient heat dissipation signal collector | |
| CN106132179A (en) | A kind of high efficiency and heat radiation signal picker | |
| CN205983787U (en) | Filtering detection formula heat dissipation signal collector | |
| CN106357218B (en) | A kind of photovoltaic generation unit monitoring system | |
| CN202451259U (en) | Engine heat management system | |
| CN205987682U (en) | Intelligent motor control formula heat dissipation signal collector | |
| CN106154956B (en) | A kind of intelligent electric-controlled drive-type temperature control simple two-way signal collector | |
| CN205156949U (en) | Aerogenerator fault detection device | |
| CN107655048A (en) | Range hood and constant air volume adjusting method and system thereof | |
| CN101477613B (en) | Main electricity generator simulator for inner combustion locomotive | |
| CN205942316U (en) | Air compressor machine group control system | |
| CN205302171U (en) | Wireless computer radiator based on remote monitoring | |
| CN106132178A (en) | A kind of intelligent electric machine controls formula radiated signal harvester | |
| CN108731495A (en) | A kind of direct air cooling system of optimization distribution steam flow | |
| CN202811207U (en) | Multiple-narrow tube cyclone power generation system | |
| CN106128060A (en) | A kind of filtering detection formula radiated signal harvester | |
| CN110186086B (en) | Series double-fan type range hood and flow control method thereof | |
| CN205983136U (en) | Double - circuit filtering control by temperature change detects switching signal collector | |
| CN207756590U (en) | A kind of precipitron frequency converting and energy saving device | |
| CN105353645B (en) | A kind of pilot solenoid valve device and test method | |
| CN210399054U (en) | Series double-fan type range hood | |
| CN208205136U (en) | A kind of smoke exhaust ventilator frequency conversion fan permanent torque control device | |
| CN205983788U (en) | Energy -conserving signal collector of motor -driven is triggered at terminal | |
| CN208487705U (en) | Air-conditioner outdoor unit and air-conditioning | |
| CN208854794U (en) | A kind of pvc tubular object extruding drilling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20170826 |