CN209358424U - Frequency converter - Google Patents
Frequency converter Download PDFInfo
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- CN209358424U CN209358424U CN201920186243.7U CN201920186243U CN209358424U CN 209358424 U CN209358424 U CN 209358424U CN 201920186243 U CN201920186243 U CN 201920186243U CN 209358424 U CN209358424 U CN 209358424U
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- 239000003990 capacitor Substances 0.000 claims abstract description 112
- 238000007791 dehumidification Methods 0.000 claims description 42
- 230000017525 heat dissipation Effects 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 28
- 238000003032 molecular docking Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 12
- 238000001816 cooling Methods 0.000 description 26
- 239000003507 refrigerant Substances 0.000 description 19
- 238000005192 partition Methods 0.000 description 7
- 241001347978 Major minor Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method 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
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
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Abstract
The utility model discloses a kind of frequency converters, the frequency converter (100) includes cabinet body (1) and at least one the capacitance module unit (511) being mounted in the cabinet body (1), and the capacitance module unit (511) can independently dismount and form the capacitive stack busbar (516) being electrically connected including capacitor fixed frame, the multiple capacitors (512) being mounted in the capacitor fixed frame, with multiple capacitors (512) and form the equalizing resistance (82) being electrically connected with the capacitive stack busbar (516).In the present invention, the capacitor inside frequency converter and associated stack bus bar, equalizing resistance etc. are dismounted with the modular fashion of capacitance module unit, and mounting structure is more compact, save limited internal installation space, and disassembly efficiency is high.While compact-sized, modularization, which radiates, is also able to satisfy the radiating requirements of multiple capacitors etc., it is ensured that the capacitor service life.
Description
Technical field
The utility model relates to converter technology fields.
Background technique
Large-size air conditioning using more and more extensive, power is increasing, makes it suitable for the frequency converter of large-size air conditioning feature
Volume is also increasing, and internal component such as capacitor equidimension is bigger, more.And in existing frequency converter, capacitor
And its relevant stack bus bar, equalizing resistance etc. are all single, independent dismounting, this makes disassembly process more time-consuming and laborious, and
And the inside installation space of frequency converter is insufficient, and it is difficult more to increase dismounting.In addition, when size, the quantity of heating element increase,
Radiating requirements are higher, to ensure the expected service life of component.
Utility model content
In view of the above drawbacks of the prior art or insufficient, the utility model provides a kind of frequency converter, is suitable for large-scale empty
The mounting structure of tune feature, internal capacitance component is succinctly reliable, and disassembly efficiency is high.
To achieve the above object, the utility model provides a kind of frequency converter, and the frequency converter includes cabinet body and is mounted on
At least one capacitance module unit in the cabinet body, the capacitance module unit can be dismounted independently and including capacitor fixed frames
Frame, the multiple capacitors being mounted in the capacitor fixed frame form the capacitive stack busbar being electrically connected with multiple capacitors
And the equalizing resistance being electrically connected is formed with the capacitive stack busbar.
Optionally, the capacitor fixed frame includes the frame body of rectangular-shape and respectively as the frame body
The capacitor rear position plate and top surface sealing plate of frame rear panel and frame top panel, the capacitive stack busbar parallel interval setting
In the rear side of the capacitor rear position plate, the equalizing resistance is mounted on the top surface of the top surface sealing plate；
Wherein, the capacitor rear position plate is equipped with multiple capacitor location holes of perforation, and the rear end of multiple capacitors is one by one
It is accordingly inserted through multiple capacitor location holes and front end is located in the frame body, respectively from the rear end of multiple capacitors
The multiple end conductive columns stretched out are inserted into correspondingly in multiple busbar connecting holes of the capacitive stack busbar.
Optionally, on the capacitor rear position plate of the same capacitance module unit, multiple capacitor positioning
Hole is in rectangular arrangement and aperture is equal.
Optionally, the equalizing resistance prolongs in the vertical direction of strip and the busbar plate face along the capacitive stack busbar
It stretches, the resistor wiring end of the equalizing resistance is arranged towards the capacitive stack busbar.
Optionally, the capacitive stack busbar includes positive busbar, intergrade busbar and cathode bus bar, and the anode is female
Row, the intergrade busbar and the cathode bus bar form with the resistor wiring end be electrically connected respectively.
Optionally, the frequency converter includes extending transversely to be used to support the bottom surface support plate of the capacitance module unit
With sealing plate before the front openings for closing the frame body, the front sealing plate, the capacitor rear position plate,
The top surface sealing plate and the bottom surface support plate are surrounded jointly for the capacitor heat dissipation wind channel for the capacitor ventilation and heat.
Optionally, the frequency converter includes transversely successively multiple capacitance module units of side-by-side docking, Duo Gesuo
It states capacitance module unit and is equipped with the respective front sealing plate.
Optionally, the frequency converter includes transversely successively multiple capacitance module units of side-by-side docking, before described
The lateral length of face sealing plate is not less than the sum of the lateral length of multiple capacitance module units.
Optionally, it is formed and is detachably connected between the front sealing plate and the frame body.
Optionally, the frequency converter includes the muti-piece air-duct clapboard being arranged in the cabinet body, the cabinet chamber quilt of the cabinet body
The air-duct clapboard is separated into cool-down dehumidification module chamber and functional module chamber positioned at both lateral sides, the functional module chamber
Room includes the first functional module chamber, the second functional module chamber and third function successively separated up and down by the air-duct clapboard
Module chamber and the 4th functional module chamber of lateral distal end that is vertically extending and being located at the cool-down dehumidification module chamber；
Wherein, it is formed with circulation in the cabinet body and is connected to the cool-down dehumidification module chamber, the first functional module chamber
Room, the second functional module chamber, the third functional module chamber and the 4th functional module chamber circulating air
Circulation road, the capacitor heat dissipation wind channel are formed as the first functional module chamber, the second function mould extended transversely
Block chamber or the third functional module chamber.
Optionally, it is equipped with cool-down dehumidification radiator in cool-down dehumidification cavity block room, is set in the circulating current channel
There is blower, master control borad and IGBT module are equipped in the first functional module chamber, the capacitor heat dissipation wind channel is formed as described
Second functional module chamber, the third functional module chamber is interior to be equipped with contactor and diode, the 4th functional module chamber
Interior is equipped with breaker, and reactor is equipped between the third functional module chamber and the 4th functional module chamber.
In the present invention, the capacitor inside frequency converter and associated stack bus bar, equalizing resistance etc. with
The modular fashion of capacitance module unit is dismounted, and mounting structure is more compact, saves limited internal installation space, and dismount
It is high-efficient.While compact-sized, modularization, which radiates, is also able to satisfy the radiating requirements of multiple capacitors etc., it is ensured that the capacitor service life.
Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is to be used to provide a further understanding of the present invention, and constitute part of specification, and following
Specific embodiment be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is that the internal structure for the frequency converter for being formed with circulating current channel in specific embodiment of the present utility model is shown
It is intended to；
Fig. 2 is the top view that the frequency converter of main cabinet and secondary cabinet is equipped in specific embodiment of the present utility model；
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 capacitance module unit is equipped in specific embodiment of the present utility model；
Fig. 6 is the Structure explosion diagram of the capacitance module unit of the frequency converter in Fig. 5；
Fig. 7 is the frame body of the capacitance module unit in Fig. 6 and the structural schematic diagram of capacitor；
Fig. 8 is the perspective view of the capacitor heat dissipation wind channel for the capacitance module unit being built-in in multiple Fig. 5；
Fig. 9 is the Structure explosion diagram of the capacitor heat dissipation wind channel in Fig. 8；
Figure 10 is the perspective view that the frequency converter of capacitor heat dissipation wind channel is equipped in specific embodiment of the present utility model, wherein
The capacitor heat dissipation wind channel includes joining section air duct and set section air duct；
Figure 11 is another perspective view of the frequency converter in Figure 10.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the utility model embodiment.It should be understood that
It is that specific embodiment described herein is merely to illustrate and explains the utility model embodiment is not limited to this reality
Use new embodiment.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the utility model embodiment, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top,
Bottom " be usually for direction shown in the drawings for either for vertically, vertically or gravity direction on for each component
Mutual alignment relation describes word.
The utility model is described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiment.
As shown in Figure 1, the utility model provides a kind of frequency converter 100.The frequency converter 100 includes cabinet body 1, air cooling equipment
With muti-piece air-duct clapboard 2.Wherein, cabinet chamber is separated into multiple module chambers by muti-piece air-duct clapboard 2, is distinguished in multiple module chambers
Different modules is installed, 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, the arrow direction in figure can be formed in the cabinet chamber of frequency converter 100
Indicate the airflow direction in the circulating current channel in one embodiment.In addition, being equipped in the circulating current channel for dropping
The air cooling equipment of temperature dehumidifying, which 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, the frequency conversion of the utility model
The exhaust air rate of air cooling equipment in device 100 is smaller, this means that the operating noise of the air cooling equipment of the utility model is smaller, and
Smaller volume can be designed to, to save the production installation cost of frequency converter 100.
To sum up, the frequency converter 100 of the utility model has good heat dissipation effect, operating noise small and production installation cost
Low 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.
It below will be using the arragement construction of each module chamber of the frequency converter 100 in illustrating as the example to the utility model
Property explanation, in fact, the modules chamber in the frequency converter 100 of the utility model may be configured as other different arrangement knots
Structure, but must assure that the circulating current channel for being formed in 1 inner cavity of cabinet body and being used for cool-down dehumidification.
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 9, frequency converter 100 includes being mounted at least one of cabinet body 1 electricity
Molar module unit 511, capacitance module unit 511 can independently dismount and including capacitor fixed frame, be mounted on capacitor fixed frame
In multiple capacitors 512, formed with multiple capacitors 512 the capacitive stack busbar 516 that is electrically connected and with capacitive stack busbar 516
Form the equalizing resistance 82 of electrical connection.
In the present embodiment, the capacitor 512 inside frequency converter 100 and associated stack bus bar, equalizing resistance 82
Deng being dismounted with the modular fashion of capacitance module unit 511, mounting structure is more compact, and it is empty to save limited internal installation
Between, and disassembly efficiency is high.While compact-sized, modularization, which radiates, is also able to satisfy the radiating requirements of multiple capacitors etc., really
Protect the capacitor service life.
In some embodiments, capacitor fixed frame includes the frame body 513 of rectangular-shape and respectively as frame sheet
The frame rear panel of body 513 and the capacitor rear position plate 514 of frame top panel and top surface sealing plate 515, capacitive stack busbar 516
The rear side of capacitor rear position plate 514 is arranged in parallel interval, and equalizing resistance 82 is mounted on the top surface of top surface sealing plate 515.
Wherein, capacitor rear position plate 514 is equipped with multiple capacitor location holes of perforation, and the rear end one of multiple capacitors 512 is a pair of
It is inserted through multiple capacitor location holes with answering and front end is located in frame body 513, stretched out respectively from the rear end of multiple capacitors 512 more
A end conductive column is inserted into correspondingly in multiple busbar connecting holes of capacitive stack busbar 516.As it can be seen that capacitor fixed frame
Compact installation between frame, capacitive stack busbar 516 and equalizing resistance 82, convenient for forming the capacitance module list for capableing of integral disassembly, assembly
Member 511.
Preferably, on the capacitor rear position plate 514 of the same capacitance module unit 511, multiple capacitor location holes are in square
Battle array shape arranges and aperture is equal.Since modularization to be realized is installed, make performance parameter, specification, shape etc. consistent more as far as possible
A capacitor 512 is mounted in same capacitance module unit 511, is conducive to improve assembly efficiency and versatility, and rectangular arrangement
Multiple capacitors 512 can make capacitance module unit 511 structure arrange it is more uniform rationally.
Further, equalizing resistance 82 prolongs in the vertical direction of strip and the busbar plate face along capacitive stack busbar 516
Stretch, the resistor wiring end 81 of equalizing resistance 82 is arranged towards capacitive stack busbar 516, thus be conducive to shorten equalizing resistance 82 with
Wire length between capacitive stack busbar 516 keeps the structure of capacitance module unit 511 more compact.
Specifically, capacitive stack busbar 516 includes positive busbar, intergrade busbar and cathode bus bar, positive busbar, centre
Grade busbar and cathode bus bar are formed with resistor wiring end 81 respectively to be electrically connected.
In one embodiment, frequency converter 100 includes extending transversely to be used to support the bottom surface of capacitance module unit 511
Support plate 523 and for sealing plate 524 before the front openings of closed frame ontology 513, before after sealing plate 524, capacitor
Positioning plate 514, top surface sealing plate 515 and bottom surface support plate 523 are surrounded jointly for the capacitor heat dissipation for capacitor ventilation and heat
Air duct 52.It under such configuration, can mainly using the structure of capacitance module unit 511 itself with the capacitor heat dissipation wind channel 52 formed
Material needed for saving surrounds capacitor heat dissipation wind channel 2.
It is detachably connected in addition, being formed between front sealing plate 524 and frame body 513, detects electricity convenient for testing staff
The service condition of capacitor 512 in molar module unit 511, consequently facilitating situations such as testing staff has found capacitor damage in time.
Based on sealing plate 524 before above-mentioned be detachably connected, when being equipped with transversely successively side-by-side docking in frequency converter 100
Multiple capacitance module units 511 when, multiple capacitance module units 511 may be provided with respective front sealing plate 524.The knot
Structure is advantageous in that, before sealing plate 524 belong to the component part of capacitance module unit 511, it is therefore desirable to completed outside cabinet body 1
Assembly correspondingly forms capacitor heat dissipation wind channel 52, assembly is more after by the installation to cabinet chamber of multiple capacitance module units 511
It is efficient and convenient.
Alternatively, when being equipped with transversely successively multiple capacitance module units 511 of side-by-side docking in frequency converter 100, it can be with
Front sealing is only carried out to multiple capacitance module units 511 by one piece of complete front sealing plate 524, at this time front sealing plate
524 lateral length is not less than the sum of the lateral length of multiple capacitance module units 511.Under such configuration, it is sealed by front
After plate 524 is dismantled, each capacitor in all capacitance module units 511 can be observed simultaneously, be more advantageous to raising detection maintenance
Efficiency.
In one embodiment, as shown in Figure 10 and Figure 11, frequency converter 100 includes cabinet body 1, cabinet is arranged in parallel interval
The first vertical baffle 21 and the second vertical baffle 22 in body 1 prolong between the first vertical baffle 21 and the second vertical baffle 22
The capacitor heat dissipation wind channel 52 stretched and the multiple capacitance module units 511 being arranged in capacitor heat dissipation wind channel 52, capacitor radiation air
The air inlet and air outlet in road 52 are separately positioned on the first vertical baffle 21 and the second vertical baffle 22.
Wherein, capacitor heat dissipation wind channel 52 is equipped with along the sequentially connected joining section air duct 521 of air duct extending direction and set section
Air duct 522, multiple capacitance module units 511 are sequentially arranged in set section air duct 522 along air duct extending direction, joining section air duct
521 are removably attachable to set section air duct 522.
As it can be seen that in the present embodiment, by the capacitor heat dissipation wind channel 52 being specially arranged, being not only convenient for multiple capacitor elements
Modularization dismounting, is more advantageous to the special heat dissipation realized to capacitance module, improves heat dissipation effect, promotes capacitor service life.It is logical
It crosses to the segment design of capacitor heat dissipation wind channel 52, it can be achieved that segmentation dismounting, convenient for disassembly and assembly, simple and practical.
Preferably, the length in joining section air duct 521 is L1, and the total length of capacitor heat dissipation wind channel 52 is L2, is met: L1 >=
L2/10.In other words, the length in joining section air duct 521 is not less than 1/10th of the total length of capacitor heat dissipation wind channel 52.In this way,
When assembling capacitor heat dissipation wind channel 52, set section air duct 522 is first installed, due to being equipped with multiple capacitor moulds in set section air duct 522
Module unit 511 needs to reserve certain operating space when assembling to the last one capacitance module unit 511, is assembling
Behind complete set section air duct 522, the reservation operations space is for installing joining section air duct 521.As it can be seen that under such configuration, it can be fast
Speed assembles capacitor heat dissipation wind channel 52, and can reduce the dismounting difficulty of capacitance module unit 511, can effectively improve disassembly efficiency.
It can be seen from the above, the operating space reserved when installing the last one capacitance module unit 511 is for installing rank
Section air duct 521 is connect, it, can be in the first vertical baffle 21 or the second vertical baffle for the fast assembling-disassembling convenient for joining section air duct 521
Air duct is set in 22 plate face, sliding slot 53 is installed.When dismounting joining section air duct 521, joining section air duct 521 can be perpendicular first
Pull is slid in the plate face of partition 21 or the second vertical baffle 22, to reduce dismounting difficulty, effectively improves disassembly efficiency.
Further, sliding slot 53 can be installed in air duct to be set as extending along the longitudinal direction, the rear end of sliding slot 53 is installed in air duct
Equipped with rear position limiting structure, which guarantees for preventing joining section air duct 521 from sliding rearwardly out from air duct installation sliding slot 53
The secured assembly in joining section air duct 521.
Further, installation sliding slot 53 in air duct includes sliding below the air duct top sliding slot and air duct of parallel interval setting
Slot, the rear end of air duct top sliding slot and the rear end of air duct lower section sliding slot are equipped with vertically extending air duct postive stop baffle 531, should
Air duct postive stop baffle 531 is the rear position limiting structure of the air duct installation sliding slot 53 of above-mentioned meaning.
In some embodiments, joining section air duct 521 is made to dock the air inlet of capacitor heat dissipation wind channel 52, and set section air duct
522 dock the air outlet of capacitor heat dissipation wind channel 52.In other words, capacitor heat dissipation wind channel 52 can be set by joining section air duct 521
In preposition air duct.It is of course also possible to set joining section air duct 521 in the postposition air duct in capacitor heat dissipation wind channel 52.
Preferably, the bottom surface support plate between the first vertical baffle 21 and the second vertical baffle 22 by extending transversely
523 bridge joints, multiple capacitance module units 511 are supported in bottom surface support plate 523, and capacitance module unit 511 is fixed including capacitor
Frame and the multiple capacitors 512 being mounted in capacitor fixed frame.Wherein, capacitor fixed frame includes the frame sheet of rectangular-shape
Body 513, frame front panel, frame rear panel, frame top panel and the bottom surface support plate 523 of frame body 513 surround appearance jointly
Set section air duct 522.Under such configuration, capacitor heat dissipation wind channel of the structure of capacitance module unit 511 to be formed itself is mainly utilized
52, material needed for surrounding capacitor heat dissipation wind channel 2 can be saved.
Further, capacitance module unit 511 includes the head end capacitance module unit and end capacitance module of head and the tail setting
Unit, the transverse ends in joining section air duct 521 dock the air inlet and head end capacitance module unit of capacitor heat dissipation wind channel 52 respectively
Frame body 513, the frame body 513 of end capacitance module unit docks the air outlet of capacitor heat dissipation wind channel 52.It ties herein
Under structure, transversely successively compact arrangement, maximizing are perpendicular using first for multiple capacitance module units 511 and joining section air duct 521
Horizontal space between partition 21 and the second vertical baffle 22.
It should be noted that capacitor heat dissipation wind channel 2 may be provided in various types of frequency converters.For example, may be provided at
In the frequency converter 100 equipped with circulating current channel stated.Specifically, the air-duct clapboard 2 of the frequency converter includes the first vertical baffle
21 and second vertical baffle 22, wherein the first functional module chamber 4, the second functional module chamber 5 or third functional module chamber
6 can be used as capacitor heat dissipation wind channel 52.In the embodiment illustrated in fig. 1, the air duct inner cavity of capacitor heat dissipation wind channel 52 is second
Functional module chamber 5.
The optional embodiment of the utility model embodiment, still, the utility model is described in detail in conjunction with attached drawing above
Embodiment be not limited to the above embodiment in detail can in the range of the technology design of the utility model embodiment
A variety of simple variants are carried out with the technical solution to the utility model embodiment, these simple variants belong to the utility model reality
Apply the protection scope of example.
It is further to note that specific technical features described in the above specific embodiments, in not lance
It in the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the utility model is implemented
No further explanation will be given to various combinations of possible ways for example.
In addition, any combination can also be carried out between a variety of different embodiments of the utility model embodiment, as long as
It equally should be considered as the utility model embodiment disclosure of that without prejudice to the thought of the utility model embodiment.
Claims (11)
1. a kind of frequency converter, which is characterized in that the frequency converter (100) includes cabinet body (1) and is mounted in the cabinet body (1)
At least one capacitance module unit (511), the capacitance module unit (511) can independently dismount and including capacitor fixed frame,
The multiple capacitors (512) being mounted in the capacitor fixed frame, the capacitor being electrically connected with multiple capacitors (512) formation are folded
Layer busbar (516) and the equalizing resistance (82) being electrically connected with the capacitive stack busbar (516) formation.
2. frequency converter according to claim 1, which is characterized in that the capacitor fixed frame includes the frame of rectangular-shape
Ontology (513) and respectively as the frame rear panel of the frame body (513) and the capacitor rear position plate of frame top panel
(514) it is arranged with top surface sealing plate (515), capacitive stack busbar (516) parallel interval in the capacitor rear position plate
(514) rear side, the equalizing resistance (82) are mounted on the top surface of the top surface sealing plate (515)；
Wherein, the capacitor rear position plate (514) is equipped with multiple capacitor location holes of perforation, after multiple capacitors (512)
End is inserted through multiple capacitor location holes correspondingly and front end is located in the frame body (513), respectively from multiple institutes
The multiple end conductive columns for stating the rear end stretching of capacitor (512) are inserted into the capacitive stack busbar (516) correspondingly
In multiple busbar connecting holes.
3. frequency converter according to claim 2, which is characterized in that in the institute of the same capacitance module unit (511)
It states on capacitor rear position plate (514), multiple capacitor location holes are in rectangular arrangement and aperture is equal.
4. frequency converter according to claim 2, which is characterized in that the equalizing resistance (82) is in strip and along the electricity
The vertical direction for holding the busbar plate face of stack bus bar (516) extends, resistor wiring end (81) direction of the equalizing resistance (82)
Capacitive stack busbar (516) setting.
5. frequency converter according to claim 4, which is characterized in that the capacitive stack busbar (516) include positive busbar,
Intergrade busbar and cathode bus bar, the anode busbar, the intergrade busbar and the cathode bus bar respectively with the resistance
Terminals (81) form electrical connection.
6. the frequency converter according to any one of claim 2~5, which is characterized in that the frequency converter (100) includes edge
It is laterally extended to be used to support the bottom surface support plate (523) of the capacitance module unit (511) and for closing the frame sheet
Sealing plate (524) before the front openings of body (513), the front sealing plate (524), the capacitor rear position plate (514),
The top surface sealing plate (515) and the bottom surface support plate (523) are surrounded jointly for the electricity for the capacitor ventilation and heat
Hold heat dissipation wind channel (52).
7. frequency converter according to claim 6, which is characterized in that the frequency converter (100) includes transversely successively side by side
Multiple capacitance module units (511) of docking, multiple capacitance module units (511) are equipped with the respective front
Sealing plate (524).
8. frequency converter according to claim 6, which is characterized in that the frequency converter (100) includes transversely successively side by side
The lateral length of multiple capacitance module units (511) of docking, the front sealing plate (524) is not less than multiple electricity
The sum of the lateral length of molar module unit (511).
9. frequency converter according to claim 6, which is characterized in that the front sealing plate (524) and the frame body
(513) it is formed and is detachably connected between.
10. frequency converter according to claim 6, which is characterized in that the frequency converter (100) includes being arranged in the cabinet body
(1) the cabinet chamber of the muti-piece air-duct clapboard (2) in, the cabinet body (1) is separated by the air-duct clapboard (2) positioned at both lateral sides
Cool-down dehumidification module chamber (3) and functional module chamber, the functional module chamber include by the air-duct clapboard (2) up and down according to
Secondary the first functional module chamber (4) separated, the second functional module chamber (5) and third functional module chamber (6) and along perpendicular
To the 4th functional module chamber (7) of the lateral distal end for extending and being located at the cool-down dehumidification module chamber (3)；
Wherein, it is formed with circulation in the cabinet body (1) and is connected to the cool-down dehumidification module chamber (3), first functional module
Chamber (4), the second functional module chamber (5), the third functional module chamber (6) and the 4th functional module chamber
The circulating current channel of room (7), the capacitor heat dissipation wind channel (52) are formed as the first functional module chamber extended transversely
Room (4), the second functional module chamber (5) or the third functional module chamber (6).
11. frequency converter according to claim 10, which is characterized in that be equipped with drop in the cool-down dehumidification module chamber (3)
Temperature dehumidifies radiator (31), is equipped with blower (66) in the circulating current channel, is equipped in the first functional module chamber (4)
Master control borad (41) and IGBT module (42), the capacitor heat dissipation wind channel (52) are formed as the second functional module chamber (5), institute
It states and is equipped with contactor (61) and diode (65) in third functional module chamber (6), set in the 4th functional module chamber (7)
Have breaker (71), reactor is equipped between the third functional module chamber (6) and the 4th functional module chamber (7)
(9)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920186243.7U CN209358424U (en) | 2019-02-01 | 2019-02-01 | Frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920186243.7U CN209358424U (en) | 2019-02-01 | 2019-02-01 | Frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209358424U true CN209358424U (en) | 2019-09-06 |
Family
ID=67803714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920186243.7U Active CN209358424U (en) | 2019-02-01 | 2019-02-01 | Frequency converter |
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| Country | Link |
|---|---|
| CN (1) | CN209358424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114203444A (en) * | 2021-12-16 | 2022-03-18 | 浙江金龙电机股份有限公司 | High-power servo driver capacitor box structure |
| CN115133748A (en) * | 2022-07-06 | 2022-09-30 | 珠海格力电器股份有限公司 | Layering master control subassembly, converter cabinet, air conditioning system |
-
2019
- 2019-02-01 CN CN201920186243.7U patent/CN209358424U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114203444A (en) * | 2021-12-16 | 2022-03-18 | 浙江金龙电机股份有限公司 | High-power servo driver capacitor box structure |
| CN115133748A (en) * | 2022-07-06 | 2022-09-30 | 珠海格力电器股份有限公司 | Layering master control subassembly, converter cabinet, air conditioning system |
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