CN109687691A - Frequency converter - Google Patents
Frequency converter Download PDFInfo
- Publication number
- CN109687691A CN109687691A CN201910105884.XA CN201910105884A CN109687691A CN 109687691 A CN109687691 A CN 109687691A CN 201910105884 A CN201910105884 A CN 201910105884A CN 109687691 A CN109687691 A CN 109687691A
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- China
- Prior art keywords
- cabinet
- functional module
- module chamber
- frequency converter
- chamber
- Prior art date
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- 238000007791 dehumidification Methods 0.000 claims abstract description 74
- 238000001816 cooling Methods 0.000 claims abstract description 52
- 238000009423 ventilation Methods 0.000 claims abstract description 42
- 238000009826 distribution Methods 0.000 claims description 10
- 239000003507 refrigerant Substances 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 241001347978 Major minor Species 0.000 description 9
- 238000009434 installation Methods 0.000 description 9
- 230000017525 heat dissipation Effects 0.000 description 8
- 239000000428 dust Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- 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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
-
- 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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a kind of frequency converters, the frequency converter (100) includes: cabinet ontology (14), the cabinet ontology (14) includes the functional module chamber for being built-in with functional module, and the side wall of the cabinet ontology (14) is equipped with side wall ventilation hole；And side cabinet (15), it is removably mounted on the side wall of the cabinet ontology (14)；Wherein, the side cabinet (15) includes the interior cool-down dehumidification module chamber (3) for being equipped with cool-down dehumidification radiator (31), and the cool-down dehumidification module chamber (3) passes through the side wall ventilation hole and the functional module chamber.By the way that the side cabinet detachably installed is arranged in frequency converter of the invention, frequency converter can install side cabinet under the particular surroundings such as high temperature and humidity with cool-down dehumidification, or remove side cabinet in normal circumstances to use external wind-cooling heat dissipating, to guarantee functional reliability of the frequency converter under different work condition environments, and use cost is saved to a certain extent.
Description
Technical field
The present invention relates to converter technology fields.
Background technique
Currently, frequency converter on the market generallys use the mode of wind-cooling heat dissipating to cabinet cavity radiating, it is big for some calorific values
Circuit element, such as IGBT, diode then increase corresponding refrigerant radiator heat-dissipation.
When using wind-cooling heat dissipating, if the dust in the work condition environment of frequency converter is larger, it is intracavitary that dust is easily accessible cabinet
And lead to short circuit.In addition, being equipped at the cold plate of IGBT and diode and holding when frequency converter is under hot and humid environment
Easy condensation is equally easy to cause frequency converter short-circuit.
As it can be seen that for the frequency converter to work in the environment of dust is larger or high temperature and humidity, using wind-cooling heat dissipating
Mode will be greatly reduced the reliability of frequency converter.
Summary of the invention
It is in view of the above drawbacks of the prior art or insufficient, the present invention provides a kind of frequency converter, can it is larger in dust or
It continually and steadily works under the particular surroundings such as high temperature and humidity, job stability with higher and reliability.
To achieve the above object, the present invention provides a kind of frequency converter, the frequency converter includes:
Cabinet ontology, the cabinet ontology include the functional module chamber for being built-in with functional module, and the side wall of the cabinet ontology is set
There is side wall ventilation hole；And
Side cabinet is removably mounted on the side wall of the cabinet ontology；
Wherein, the side cabinet includes the interior cool-down dehumidification module chamber for being equipped with cool-down dehumidification radiator, the cool-down dehumidification
Module chamber passes through the side wall ventilation hole and the functional module chamber.
Optionally, it is formed between the side cabinet and the cabinet ontology and is externally tightly connected.
Optionally, the frequency converter includes the blower being arranged in the cool-down dehumidification module chamber.
Optionally, the side cabinet is the transverse sides cabinet of the frequency converter, is formed in the functional module chamber along perpendicular
The first functional module chamber, the second functional module chamber and the third functional module chamber that upward lower leaf separates, the side wall
Ventilation hole includes respectively corresponding connection the first functional module chamber, the second functional module chamber and third functional module chamber
The first side wall ventilation hole, second sidewall ventilation hole and third side wall ventilation hole.
Optionally, blower is installed, the blower is towards the cool-down dehumidification cavity block in the third side wall ventilation hole
Indoor blowing.
Optionally, the first functional module chamber is equipped with IGBT module, and the second functional module chamber is equipped with
Capacitance module, the third functional module chamber are equipped with diode and contactor.
Optionally, the transverse direction in the functional module chamber relative to the side cabinet is distally formed with the 4th vertical function
Module chamber, the 4th functional module chamber respectively with the first functional module chamber, the second functional module chamber
With the third functional module chamber airflow connection.
Optionally, the 4th functional module chamber is equipped with breaker.
Optionally, flow distribution plate is equipped in the side cabinet, the flow distribution plate is arranged in the first side wall ventilation hole and second
Between side wall ventilation hole, a part by the cooling air-flow of the cool-down dehumidification radiator passes through the second sidewall ventilation hole
The second functional module chamber is flowed to, another part cooling air-flow passes sequentially through tap hole and described on the flow distribution plate
One side wall ventilation hole flows to the first functional module chamber.
Optionally, the frequency converter includes frequency converter cooling system, and the frequency converter cooling system includes that the cooling removes
Functional module radiator in the rear side plate face of wet radiator and the cabinet body rear panel for being mounted on the cabinet ontology.
In the present invention, frequency converter is equipped with the side cabinet being removably mounted on cabinet ontology, and interior be equipped with cools down in the side cabinet
The functional module chamber equipped with functional module is logical by side wall in the cool-down dehumidification module chamber and cabinet ontology of dehumidifying radiator
Air holes connection.Under such configuration, internal circulating current channel is formed since multiple side wall ventilation holes can be passed through, frequency converter need not be with
External air flow connection, that is, can guarantee and radiate to the dehumidifying of functional module chamber, to guarantee frequency converter dust is larger or high temperature
It being capable of steady operation under the particular surroundings such as high humidity.And in normal circumstances, then side cabinet need not be configured, functional module chamber can at this time
It is connected to by the side wall ventilation hole on cabinet ontology with outer gas stream, that is, uses external wind-cooling heat dissipating.In other words, frequency conversion of the invention
Device can selectively install side cabinet according to different work condition environments, and versatility is high, can save use to a certain extent
Cost.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the internal structure signal that the frequency converter in circulating current channel is formed in a specific embodiment of the invention
Figure；
Fig. 2 is the top view that the frequency converter of main cabinet and secondary cabinet is equipped in a specific embodiment of the invention；
Fig. 3 is another top view of the frequency converter in Fig. 2, and main cabinet front door body is in the open state；
Fig. 4 is the rearview of the frequency converter in Fig. 2；
Fig. 5 is the perspective view that the frequency converter of side cabinet is equipped in a specific embodiment of the invention, and side cabinet is mounted on cabinet at this time
On ontology；
Fig. 6 is another perspective view of the frequency converter in Fig. 5, and side cabinet is dismantled from cabinet ontology at this time；
Fig. 7 is the perspective view of the side cabinet of the frequency converter in Fig. 5；
Fig. 8 be equipped in a specific embodiment of the invention can front and back pull cool-down dehumidification radiator frequency converter it is vertical
Body figure, cool-down dehumidification radiator is mounted in main cabinet at this time；
Fig. 9 is another perspective view of the frequency converter in Fig. 8, and cool-down dehumidification radiator is extracted out backward from main cabinet at this time；
Figure 10 is the front perspective view of the frequency converter in Fig. 8；
Figure 11 is another front perspective view of the frequency converter in Fig. 8.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the embodiment of the present invention.It should be understood that this
Locate described specific embodiment and be merely to illustrate and explain the present invention embodiment, is not intended to restrict the invention embodiment.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In embodiments of the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is logical
Be often for direction shown in the drawings either for it is vertical, vertically or on gravity direction for the mutual position of each component
Set relationship description word.
The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiment.
As shown in Figure 1, the present invention provides a kind of frequency converters 100.The frequency converter 100 includes cabinet body 1, air cooling equipment and more
Block air-duct clapboard 2.Wherein, cabinet chamber is separated into multiple module chambers by muti-piece air-duct clapboard 2, is installed respectively in multiple module chambers
There is different modules, and the air-duct clapboard 2 of modules chamber is equipped with respective module chamber air inlet and module chamber
Air outlet.By the way that the structure is arranged, circulating current channel can be formed in the cabinet chamber of frequency converter 100, the arrow direction in figure indicates
The airflow direction in the circulating current channel in one embodiment.It is removed in addition, being equipped in the circulating current channel for cooling down
Wet air cooling equipment, the air cooling equipment may include blower 66 and the cool-down dehumidification radiator 31 for cool-down dehumidification.
In the course of work of frequency converter 100, the functional module in some module chambers can generate heat.At this point, air-cooled
Device is also at working condition, and the cold wind being discharged from the air outlet of air cooling equipment can pass through modules chamber air inlet and module
Chamber air outlet flows in different module chambers, and is finally back to the exhausting end of air cooling equipment, to be formed above-mentioned
Circulating current channel for cooling.
As it can be seen that air cooling equipment is to continue to the cool-down dehumidification effect of each functional module due to the presence in circulating current channel
And it is stable, and it is relatively independent between modules chamber, it can guarantee have suitable working environment in each chamber always
Temperature reduces functional module and crosses the risk of thermal damage, to prolong its service life, while the reliability of frequency converter can also be made big
It is big to improve.
In addition, compared with existing frequency converter, under the premise of reaching same heat dissipation effect, frequency converter of the invention
The exhaust air rate of air cooling equipment in 100 is smaller, this means that the operating noise of air cooling equipment of the invention is smaller, and can design
At smaller volume, to save the production installation cost of frequency converter 100.
To sum up, frequency converter 100 of the invention has good heat dissipation effect, operating noise are small and production installation cost is low etc.
Advantage.
In some embodiments, module chamber includes the cool-down dehumidification mould for installing above-mentioned cool-down dehumidification radiator 31
Block chamber 3, certainly, air cooling equipment are also mountable in other module chambers, without the cool-down dehumidification module being separately provided
Chamber 3.Since air cooling equipment can generate lasting vibration during the work time, to minimize the vibration to frequency converter bring
Cool-down dehumidification module chamber 3, can be preferably provided at the bottom position of cabinet chamber, or further by adverse effect, will be air-cooled
The bottom position of cool-down dehumidification module chamber 3 is arranged in device, to improve the overall stability of frequency converter 100.
It, can be based on being separated out module chamber as much as possible with air-duct clapboard 2 as few as possible to save production cost
Principle determines required partition quantity.Furthermore the relative position and connectivity structure between each module chamber of reasonable Arrangement are wanted, with
The gas-flow resistance in circulating current channel is minimized, accelerates the heat transfer rate in channel, to further increase radiating efficiency.
Therefore, in the above-described embodiment, the cabinet body 1 of frequency converter can be set to rectangular-shape, and utilizes air-duct clapboard
2, cabinet body top panel, cabinet floor plate, cabinet body front panel, cabinet body rear panel and one of cabinet body side panel limit jointly
Cool-down dehumidification module chamber 3.Further, other air duct can be also equipped between cabinet body front panel and cool-down dehumidification radiator 31
Partition 2, user is after opening cabinet body front panel, due to the barrier of the air-duct clapboard 2, can avoid directly touching cool-down dehumidification heat dissipation
Device 31.
As it can be seen that can effectively save the quantity of air-duct clapboard 2 by using the different panels of cabinet body 1 as partition, and will
The avris position in 1 inner cavity of cabinet body is arranged in cool-down dehumidification module chamber 3, can convenient for other module chambers reasonable Arrangement and
Connection.
In addition, air cooling equipment may include blower 66 and cool-down dehumidification radiator 31, the cool-down dehumidification radiator 31 is settable
In the air draft side or exhausting side of blower 66.Under the driving of blower 66, pass through the low temperature gas after cooling of cool-down dehumidification radiator 31
Body can quickly be flowed along circulation airflow channel.And in the above-described embodiment, cool-down dehumidification radiator 31 is mountable in blower
Between 66 and 1 side panel of cabinet body or blower 66 is mountable between 1 side panel of cool-down dehumidification radiator 31 and cabinet body, and or
Cool-down dehumidification radiator 31 and the blower 66 described in person are installed on the air-duct clapboard.
Further, the module chamber air outlet of the cool-down dehumidification module chamber 3 and module chamber air inlet
Mouth is setting up and down on the air-duct clapboard 2 of the cool-down dehumidification module chamber 3, and the blower 66 is mounted on the cooling and removes
On the module chamber air inlet of wet module chamber 3.The reason of structure is arranged is, blower 66 is avoided to dissipate cool-down dehumidification
Condensed water on hot device 31 is blown in other module chambers, prevents other function module from short circuit occur, to improve frequency converter 100
Stability and reliability.Alternatively, when blower 66 is possible to the condensed water on cool-down dehumidification radiator 31 being blown to other modules
In the case where chamber, corresponding water-stop structure can be additionally set.
Below by the arragement construction of each module chamber of the frequency converter 100 in illustrating as to exemplary theory of the invention
It is bright, in fact, the modules chamber in frequency converter 100 of the invention may be configured as other different arragement constructions, but necessary
Guarantee to form the circulating current channel for being used for cool-down dehumidification in 1 inner cavity of cabinet body.
As shown in Figure 1, module chamber further includes the first functional module chamber 4, the second functional module chamber 5, third function
Module chamber 6 and the 4th functional module chamber 7.First functional module chamber 4, the second functional module chamber 5 and third function
Energy module chamber 6 is from top to bottom set gradually and the left and right sides is adjacent to cool-down dehumidification module chamber 3 and the 4th function mould respectively
Block chamber 7.
Wherein, the first functional module chamber 4, the second functional module chamber 5 and third functional module chamber 6 pass through respective
Air-duct clapboard 2 on ventilation hole (i.e. above-mentioned module chamber air inlet or module chamber air outlet) respectively with cool-down dehumidification mould
Block chamber 3 is connected to the 4th functional module chamber 7.
Under the working condition of frequency converter 100, the cold wind being discharged from the air draft side of air cooling equipment is from cool-down dehumidification cavity block
After room 3 is blown out, it is divided into two-way to flow to the first functional module chamber 4 and the second functional module chamber 5 respectively.And then, from
First functional module chamber 4 and the cold wind of the second functional module chamber 5 blowout converge to the 4th functional module chamber 7.Then, from
The cold wind of 4th functional module chamber 7 blowout by being back to the exhausting side of air cooling equipment after third functional module chamber 6, thus
Complete primary complete airflow circulating flowing.
Specifically, frequency converter 100 include the master control borad 41 that is arranged in the first functional module chamber 4 and IGBT module 42,
It the capacitance module 51 that is arranged in the second functional module chamber 5, the diode 65 being arranged in third functional module chamber 6 and connects
Tentaculum 61 and the breaker 71 being arranged in the 4th functional module chamber 7, and in third functional module chamber 6 and the 4th function
Reactor 9 can be additionally provided between module chamber 7.
It should be noted that IGBT module 42, capacitance module 51 and diode 65 are calorific value in frequency converter 100
Relatively large functional module needs to avoid the environment temperature in individual module chamber excessively high by three functional modules two
Two are spaced apart.
Therefore, IGBT module 42 is arranged in the first functional module chamber 4 frequency converter 100 in embodiment illustrated
In, by capacitance module 51 be arranged in the second functional module chamber 5 and by diode 65 be arranged in third functional module chamber 6
In.
Further, since the volume of capacitance module 51 and breaker 71 is relatively large, and according to safety requirement, breaker
71 need independent isolating to be arranged.Therefore capacitance module 51 is provided separately in the second functional module chamber 5, and breaker 71 is then
It is provided separately in the 4th functional module chamber 7.
And the lesser functional module of volume and calorific value can combination settings be in the same chamber according to the actual situation.Such as
In said structure, can be by master control borad 41 and 42 combination settings of IGBT module in the first functional module chamber 4, and it can be by two
Pole pipe 65 and 61 combination settings of contactor are in third functional module chamber 6.
And for reactor 9, since its volume is relatively large, bottom position (third function mould can be disposed at
Between block chamber 6 and the 4th functional module chamber 7) to increase mounting stability, to make each functional module in frequency converter 100
With relatively reasonable arragement construction.
IGBT module 42 biggish for calorific value and diode 65, it is scattered to further increase can be also respectively set radiator
Thermal velocity, the radiator can be microchannel heat sink or gilled radiator etc., wherein microchannel heat sink is equipped with for supplying
The micro-channel flat of refrigerant circulation.
Further, it is also possible to determine its module chamber air inlet and module chamber according to the different heat amount of disparate modules chamber
The pore size of air outlet, alternatively, the pore size of module chamber air inlet and module chamber air outlet is set as adjusting in real time
Section, to keep the temperature in each module chamber uniform, avoids generating condensation because of local overcooling in cabinet chamber, avoids circuit element short
Road, to improve the reliability of frequency converter 100.
In one embodiment, as shown in Figures 2 to 4, frequency converter 100 includes main cabinet 11 and secondary cabinet 12.Wherein, main cabinet 11
Positioned at frequency converter 100 front side and be built-in with functional module, it is intracavitary that circulating current channel above-mentioned is formed in main cabinet.12, secondary cabinet
It is spaced from each other between the rear side of frequency converter 100, main cabinet 11 and secondary cabinet 12 by major-minor cabinet spacing board 13.In addition, frequency converter 100
It further include frequency converter cooling system, including the secondary cabinet cooling device being arranged in secondary cabinet 12.
By being equipped with cavity main cabinet 11 spaced apart from each other and secondary cabinet 12 in frequency converter 100, so that the function of frequency converter 100
Module and cooling device can be separately mounted in main cabinet chamber and secondary cabinet chamber, to realize that subregion is arranged, be conducive to simplify cabinet chamber
Interior structure and raising reliability.In addition, functional module and cooling device can dismount independently of each other and have biggish dismounting empty
Between, it is easily installed maintenance, cost can be effectively saved, improve production maintenance efficiency.
For the frequency converter 100 of rectangular-shape comprising the outer housing of rectangular shape, at this time major-minor cabinet spacing board 13
Setting is separated out main cabinet 11 and secondary cabinet 12 in the outer housing with, and main cabinet 11 includes main cabinet front door body 111, and secondary cabinet 12 includes pair cabinet
Back shroud 121.
As it can be seen that can individually open main cabinet front door body 111, secondary cabinet chamber when needing dismounting that the component in main cabinet chamber is arranged in
In component it is unaffected.When needing dismounting that the component in secondary cabinet chamber is arranged in, then secondary cabinet back shroud 121 can be individually opened,
Component at this time in main cabinet chamber is unaffected.Alternatively, main cabinet front door body 111 and secondary cabinet back shroud 121 can also be opened simultaneously, with same
When the component in main cabinet chamber and secondary cabinet chamber is dismounted, to effectively improve disassembly efficiency.
In addition, frequency converter 100 further includes the main cabinet partition as air-duct clapboard 2, which is cool-down dehumidification module
Partition between chamber 3 and functional module chamber, 100 cooling system of frequency converter further include being installed on cool-down dehumidification module chamber 3
Interior cool-down dehumidification radiator 31.
Further, be equipped in functional module chamber the multiple IGBT421 being arranged laterally at a spacing and transversely it is continuous simultaneously
Multiple diodes 65 that arrangement is set, multiple IGBT421 and multiple diodes 65 are vertically periodically installed at major-minor cabinet spacing board 13
Front side plate face on.Secondary cabinet cooling device includes the diode radiating device being arranged in the rear side plate face of major-minor cabinet spacing board 13
122 and multiple IGBT radiators 123.
Interval region of multiple IGBT421 on major-minor cabinet spacing board 13 is subcooled and generates condensation in order to prevent, will be multiple
IGBT radiator 123 is accordingly set as laterally spaced arrangement and contraposition is arranged one by one along the longitudinal direction with multiple IGBT421, i.e.,
IGBT radiator 123 is in split type arrangement.And diode 65 is the parallel-connection structure being transversely continuously arranged side by side, therefore by two poles
Tube radiator 122 is provided accordingly to the strip in laterally consecutive extension and aligns cloth with multiple diodes 65 along the longitudinal direction
It sets, i.e., diode radiating device 122 is arranged in continous way, to realize that the IGBT421's and diode 65 big to calorific value is special
Heat dissipation.
Further, microchannel heat sink can be used in IGBT radiator 123 and diode radiating device 122, the microchannel
Radiator includes the micro-channel flat for circulating for refrigerant, and heat exchange area is big, and cooling efficiency is higher, is conducive to improve
The reliability of IGBT421 and diode 65.
IGBT421 can be designed to long bulk by some producers, and in the frequency converter 100 of the present embodiment, length is block-like
IGBT421 vertically puts installation.At this point, can be incited somebody to action to improve the heat transfer area of IGBT radiator 123 to improve cooling efficiency
The micro-channel flat of IGBT radiator 123 is accordingly set as in vertical long blocky.
At this point, setting split type arragement construction for IGBT radiator 123, prevent multiple IGBT421 in master in addition to being
Interval region on secondary cabinet spacing board 13 is subcooled and generates other than condensation, it is also contemplated that longer wider micro-channel flat is difficult to add
Work molding.And even with the IGBT radiator 123 of split type arrangement for, length also should not be too big, therefore can will
The vertical extension of the micro-channel flat of IGBT radiator 123 is preferably arranged to not less than 200mm.
In addition, in projection along the longitudinal direction, multiple diodes 65 are fallen to increase heat exchange area to improve cooling efficiency
In the outer outline area for entering diode radiating device 122, IGBT421 is fallen into the outer outline area of corresponding IGBT radiator 123.
On the other hand, it can set diode radiating device 122 and multiple IGBT radiators 123 to about major-minor cabinet interval
The vertical centerline of plate 13 is arranged symmetrically, and keeps structure more uniform rationally, beautiful.
Specifically, frequency converter cooling system further include the refrigerant inlet being arranged on the outer wall of secondary cabinet 12 and refrigerant exit with
And the refrigerant pipe between refrigerant inlet and refrigerant exit is set.Wherein, refrigerant pipe includes flowing through multiple IGBT radiators
123 multiple IGBT refrigerant pipes flow through the diode refrigerant pipe of diode radiating device 122 and flow through cool-down dehumidification radiator
31 cool-down dehumidification refrigerant pipe.Multiple IGBT refrigerant pipes, diode refrigerant pipe and cool-down dehumidification refrigerant pipe parallel connection are set
It sets, guarantees the heat dissipation effect to each heat generating components.
Further, it is respectively equipped on IGBT refrigerant pipe, diode refrigerant pipe and cool-down dehumidification refrigerant pipe corresponding
Throttling set, the cold medium flux in refrigerant pipe is adjusted for the difference according to calorific value, to realize intelligentized cold
But it radiates.
In addition, gilled radiator can also be used in diode radiating device 122 and IGBT radiator 123, but need to be equipped with wind
Machine is to take away rapidly the heat in secondary cabinet chamber.It in other words, may include a variety of radiating modes in secondary cabinet cooling device, such as air-cooled scattered
Heat or refrigerant heat dissipation, will regard different situations in design and determine most suitable radiator structure.
In one embodiment, as shown in Figures 5 to 7, frequency converter 100 includes cabinet ontology 14 and side cabinet 15, the cabinet ontology
14 include the functional module chamber for being built-in with functional module, and the side wall of cabinet ontology 14 is equipped with side wall ventilation hole, the side wall ventilation hole
I.e. above-mentioned module chamber air inlet or module chamber air outlet, side cabinet 15 is removably mounted on the side wall of cabinet ontology 14.
Wherein, side cabinet 15 includes the interior cool-down dehumidification module chamber 3 for being equipped with cool-down dehumidification radiator 31, and cool-down dehumidification module chamber 3 is logical
Cross side wall ventilation hole and functional module chamber.
It should be noted that side cabinet 15 can be the upper side edge cabinet, lower side cabinet, front side edge cabinet, back side edge of frequency converter 100
Cabinet or transverse sides cabinet, or be the side cabinet on other directions.
In the present invention, frequency converter 100 is equipped with the side cabinet 15 that is removably mounted on cabinet ontology 14, in the side cabinet 15 in
The functional module chamber of functional module is equipped in cool-down dehumidification module chamber 3 and cabinet ontology 14 equipped with cool-down dehumidification radiator 31
Room is connected to by side wall ventilation hole.Under such configuration, internal circulating current channel is formed since multiple side wall ventilation holes can be passed through,
Frequency converter 100 need not be connected to external air flow, that is, can guarantee that the dehumidifying to functional module chamber is radiated, to guarantee frequency converter
100 being capable of steady operation in the case where dust is larger or the particular surroundings such as high temperature and humidity.And in normal circumstances, then it need not configuration side cabinet
15, functional module chamber can be connected to by the side wall ventilation hole on cabinet ontology 14 with outer gas stream at this time, i.e., using external air-cooled
Heat dissipation.In other words, frequency converter 100 of the invention can selectively install side cabinet 15 according to different work condition environments, general
Property it is high, use cost can be saved to a certain extent.
To guarantee to be formed internal circulating current channel, it is to be ensured that side cabinet 15 and cabinet ontology 14 not with external progress air-flow company
It is logical, therefore, is formed between side cabinet 15 and cabinet ontology 14 and be externally tightly connected.
In some embodiments, side cabinet 15 is the transverse sides cabinet of frequency converter 100, is installed by the transverse sides cabinet to cabinet
When the side of ontology 14, the circulating current channel in previous embodiment is formed in frequency converter 100.Specifically, i.e. function mould
The first functional module chamber 4, the second functional module chamber 5 and the third function that vertically upper lower leaf separates are formed in block chamber
It can module chamber 6.Side wall ventilation hole includes respectively corresponding the first functional module chamber 4 of connection, the second functional module chamber 5 and the
The first side wall ventilation hole 141, second sidewall ventilation hole 142 and the third side wall ventilation hole 143 of three functional module chambers 6.
In addition, the transverse direction in functional module chamber relative to side cabinet 15 is distally formed with the 4th vertical functional module chamber
7, the 4th functional module chamber 7 respectively with the first functional module chamber 4, the second functional module chamber 5 and third functional module chamber
6 airflow connection of room.
Further, blower 66 is installed, blower 66 can be towards cool-down dehumidification module chamber in third side wall ventilation hole 143
Blowing in 3.Alternatively, blower 66 may be provided in cool-down dehumidification module chamber 3, that is, belong to the structure in side cabinet 15.First function
Module chamber 4 is equipped with IGBT module 42, and the second functional module chamber 5 is equipped with capacitance module 51, third functional module chamber 6
Diode 65 and contactor 61 are installed.4th functional module chamber 7 is equipped with breaker 71.
Preferably, it is additionally provided with flow distribution plate 151 in side cabinet 15, the flow distribution plate 151 setting is in the first side wall ventilation hole 141 and the
Between two side wall ventilation holes 142, a part by the cooling air-flow of cool-down dehumidification radiator 31 passes through second sidewall ventilation hole
142 flow to the second functional module chamber 5, and another part cooling air-flow passes sequentially through the tap hole 152 and first on flow distribution plate 151
Side wall ventilation hole 141 flows to the first functional module chamber 4, so that reasonable distribution is circulated to the first functional module chamber 4 and second
Air quantity in functional module chamber 5 prevents condensation so that the temperature of each chamber is relatively uniform.
In addition, frequency converter 100 further includes frequency converter cooling system, frequency converter cooling system includes cool-down dehumidification radiator 31
With the functional module radiator in the rear side plate face for the cabinet body rear panel for being mounted on cabinet ontology 14, functional module radiator includes
IGBT radiator or diode radiating device etc..
In one embodiment, as shown in Figs. 8 to 11, the cabinet body 1 of frequency converter 100 includes the main cabinet 11 and rear side of front side
Secondary cabinet 12, be equipped with functional module and cool-down dehumidification radiator 31 in main cabinet 11, secondary cabinet cooling device, main cabinet be equipped in secondary cabinet 12
It is separated between 11 and secondary cabinet 12 by major-minor cabinet spacing board 13, major-minor cabinet spacing board 13 is equipped with radiator and inserts mouth 32, cooling
Dehumidifying radiator 31, which is connected with the refrigerant pipeline of secondary cabinet cooling device and inserts mouth 32 by radiator, to be installed to front and back pull
Into main cabinet 11.
By the way that above structure is arranged, frequency converter 100 is equipped with cavity main cabinet 11 spaced apart from each other and secondary cabinet 12, so that frequency converter
100 functional module and cooling device can be separately mounted in main cabinet chamber and secondary cabinet chamber, to realize that subregion is arranged, be conducive to
Simplify cabinet mucosal structure and improves reliability.In addition, functional module and cooling device can dismount independently of each other and have larger
Dismounting space, be easily installed maintenance, can effectively save cost, improve production maintenance efficiency.On the other hand, it is arranged in main cabinet 11
Interior cool-down dehumidification radiator 31 directly can insert to front and back pull in the radiator inserting mouth 32 of major-minor cabinet spacing board 13,
Disassembly and assembly structure is simple, can greatly save secure fit part, to effectively improve production maintenance efficiency to save cost.
In some embodiments, main cabinet 11 may include above-mentioned cabinet ontology 14 and side cabinet 15, and radiator inserts mouth 32 at this time
Through be arranged in while cabinet 15 while cabinet rear panel on, cool-down dehumidification radiator 31 can be installed to the chamber of side cabinet 15 to front and back pull
In.
In some embodiments, radiator inserts 32 rectangular shaped of mouth and favours horizontal plane setting.In other words, cool down
Dehumidifying radiator 31 is also to be obliquely installed, and is conducive to flowing of the air-flow in cool-down dehumidification module chamber 3.
To be easily installed cool-down dehumidification radiator 31, the outer peace stretched out backward can be equipped in the outside that radiator inserts mouth 32
Guide plate 33 is filled, which can guide cool-down dehumidification radiator 31 to be inserted into radiator inserting mouth 32.In installation process
In, outer installation guide plate 33 can positioning support cool-down dehumidification radiator 31, make to dismount more convenient laborsaving.
In addition, the cabinet of main cabinet 11 is intracavitary to be equipped with the interior installation guide plate 34 extended along the front-rear direction of cabinet chamber, interior installation guide plate
34 rear end extends to radiator inserting mouth 32, and the company of being slidably matched is formed between cool-down dehumidification radiator 31 and interior installation guide plate 34
It connects.By the sliding connection, cool-down dehumidification radiator 31 can be installed in cabinet chamber to front and back pull.And in frequency converter 100
The course of work in, interior installation guide plate 34 can play sealing function, to prevent from leaking out.
Further, cabinet is intracavitary is additionally provided with the position limiting sealed plate 35 positioned at the front side of interior installation guide plate 34, and cool-down dehumidification dissipates
The front end of hot device 31 is connected in the rear plate face of position limiting sealed plate 35 and forms a fixed connection with position limiting sealed plate 35.Meanwhile it should
Position limiting sealed plate can also play sealing function, to effectively prevent leaking out.
Since the high temperature gas flow in frequency converter 100 can be condensed when passing through cool-down dehumidification radiator 31, it is therefore desirable to be arranged
Water receiver 36 is for accepting condensed water.Otherwise, under the effect of blower 66, condensed water is possible to that functional module chamber can be flowed to
In, the risk of 100 short circuit of frequency converter can be greatly increased.Preferably, between water receiver 36 and the lowermost end of cool-down dehumidification radiator 31
Every setting, to guarantee to accept to condensed water.In addition it is also possible to water receiver 36 is arranged in other regions in cabinet chamber, with
The condensed water generated in other regions of undertaking.
Further, the cabinet for setting being removably mounted on main cabinet 11 for water receiver 36 is intracavitary, when full water in box chamber,
Convenient for removing cleaning.Alternatively, can be directly on the outer wall of water receiver 36 through setting water receiver discharge outlet 37, by the water receiving
External drainpipe in box discharge outlet 37 can control the condensed water outlet in water receiver 36 at any time.Or in dismountable water receiving
Water receiver discharge outlet 37 is set simultaneously on box 36.
In addition, the thermal insulation structure that setting is used for heat-insulation and heat-preservation can be wrapped up on the outer wall of water receiver 36, to maintain cabinet
Suitable temperature in chamber is conducive to the normal work of the functional module in cabinet chamber.
The optional embodiment of the embodiment of the present invention is described in detail in conjunction with attached drawing above, still, the embodiment of the present invention is simultaneously
The detail being not limited in above embodiment can be to of the invention real in the range of the technology design of the embodiment of the present invention
The technical solution for applying example carries out a variety of simple variants, these simple variants belong to the protection scope of the embodiment of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way, in order to avoid unnecessary repetition, the embodiment of the present invention pair
No further explanation will be given for various combinations of possible ways.
In addition, any combination can also be carried out between a variety of different embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is violated, equally should be considered as disclosure of that of the embodiment of the present invention.
Claims (10)
1. a kind of frequency converter, which is characterized in that the frequency converter (100) includes:
Cabinet ontology (14), the cabinet ontology (14) include the functional module chamber for being built-in with functional module, the cabinet ontology (14)
Side wall be equipped with side wall ventilation hole；And
Side cabinet (15) is removably mounted on the side wall of the cabinet ontology (14)；
Wherein, the side cabinet (15) includes the interior cool-down dehumidification module chamber (3) for being equipped with cool-down dehumidification radiator (31), the drop
Warm dehumidification module chamber (3) passes through the side wall ventilation hole and the functional module chamber.
2. frequency converter according to claim 1, which is characterized in that shape between the side cabinet (15) and the cabinet ontology (14)
Pairs of external seal connection.
3. frequency converter according to claim 1, which is characterized in that the frequency converter (100) includes being arranged in the cooling
Blower (66) in dehumidification module chamber (3).
4. frequency converter according to claim 1, which is characterized in that the side cabinet (15) is the cross of the frequency converter (100)
To side cabinet, the first functional module chamber (4), second that vertically upper lower leaf separates are formed in the functional module chamber
Functional module chamber (5) and third functional module chamber (6), the side wall ventilation hole include respectively corresponding connection first function
Can module chamber (4), the second functional module chamber (5) and third functional module chamber (6) the first side wall ventilation hole (141),
Second sidewall ventilation hole (142) and third side wall ventilation hole (143).
5. frequency converter according to claim 4, which is characterized in that be equipped with wind in the third side wall ventilation hole (143)
Machine (66), the blower (66) are dried towards the cool-down dehumidification module chamber (3) is interior.
6. frequency converter according to claim 4, which is characterized in that the first functional module chamber (4) is equipped with IGBT
Module (42), the second functional module chamber (5) are equipped with capacitance module (51), third functional module chamber (6) peace
Equipped with diode (65) and contactor (61).
7. frequency converter according to claim 4, which is characterized in that relative to the side cabinet in the functional module chamber
(15) transverse direction is distally formed with the 4th vertical functional module chamber (7), the 4th functional module chamber (7) respectively with institute
The first functional module chamber (4), the second functional module chamber (5) and third functional module chamber (6) air-flow is stated to connect
It is logical.
8. frequency converter according to claim 7, which is characterized in that the 4th functional module chamber (7) is equipped with open circuit
Device (71).
9. frequency converter according to claim 4, which is characterized in that flow distribution plate (151) are equipped in the side cabinet (15), it is described
Flow distribution plate (151) is arranged between the first side wall ventilation hole (141) and second sidewall ventilation hole (142), by the drop
A part of the cooling air-flow of temperature dehumidifying radiator (31) flows to second function by the second sidewall ventilation hole (142)
Module chamber (5), another part cooling air-flow pass sequentially through the tap hole (152) and described first on the flow distribution plate (151)
Side wall ventilation hole (141) flows to the first functional module chamber (4).
10. frequency converter described according to claim 1~any one of 9, which is characterized in that the frequency converter (100) includes
Frequency converter cooling system, the frequency converter cooling system include the cool-down dehumidification radiator (31) and are mounted on the cabinet ontology
(14) the functional module radiator in the rear side plate face of cabinet body rear panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910105884.XA CN109687691A (en) | 2019-02-01 | 2019-02-01 | Frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910105884.XA CN109687691A (en) | 2019-02-01 | 2019-02-01 | Frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109687691A true CN109687691A (en) | 2019-04-26 |
Family
ID=66194380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910105884.XA Pending CN109687691A (en) | 2019-02-01 | 2019-02-01 | Frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109687691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112217400A (en) * | 2019-07-12 | 2021-01-12 | 株洲中车时代电气股份有限公司 | Frequency converter device |
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| CN112217400B (en) * | 2019-07-12 | 2022-03-22 | 株洲中车时代电气股份有限公司 | Frequency converter device |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210222 Address after: 200080 Room C, 14th floor, 309 Tanggu Road, Hongkou District, Shanghai Applicant after: Shanghai Meikong Intelligent Building Co.,Ltd. Applicant after: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. Address before: 528311 Penglai Road Industrial Avenue, Beijiao Town, Shunde District, Foshan City, Guangdong Province Applicant before: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. Applicant before: MIDEA GROUP Co.,Ltd. |
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| TA01 | Transfer of patent application right |