CN209088800U - A kind of frequency converter - Google Patents
A kind of frequency converter Download PDFInfo
- Publication number
- CN209088800U CN209088800U CN201822163472.5U CN201822163472U CN209088800U CN 209088800 U CN209088800 U CN 209088800U CN 201822163472 U CN201822163472 U CN 201822163472U CN 209088800 U CN209088800 U CN 209088800U
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- radiator
- frequency converter
- heat dissipation
- heating device
- circuit board
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Abstract
The utility model discloses a kind of frequency converters, are laid out mainly around radiating subassembly, and radiating subassembly is made up of radiator and radiator bearer；Heating device in circuit unit realizes heat dissipation by being installed on radiator.Circuit unit and heat sink assembly constitute frequency converter machine core, and the machine core constituted provides enclosure space for heating device to protect heating device not by pollutant effects in air duct.Cabinet base is equipped with fixed structure, and machine core is installed on cabinet base by fixed structure, provides independent ventiduct structure for radiator, while to improve its heat dissipation effect, also promotes the protective performance of frequency converter entirety.By constructing special independent air channel structure, the pollutant reduced in air duct contacts the utility model with the direct of heating device, in the case where not increasing additional component, the heat dissipation effect of frequency converter is effectively ensured, and improve the protective and stability of frequency converter.
Description
Technical field
The utility model relates to electronic technology field more particularly to a kind of frequency converters.
Background technique
Frequency converter is generally in the more severe usage scenario of environment, and dust, steam once enter frequency conversion in environment
Inside device, its job stability just will affect.In order to keep frequency converter performance more stable, heat dissipation effect is more preferable, it will usually will dissipate
Heat structure is connected with the heating device in frequency converter, however can bring about some problems in this way: radiator structure is with heating device
It is no mutually indepedent；Whether the environment as locating for the heating devices such as rectifier bridge module, IGBT module is stable；Increasing additional auxiliary can phase
Increase product cost with answering, how this is laid out to reduce cost component.
In conclusion how to provide one kind has compared with permanent protective property energy and dissipates in the case where not increasing additional auxiliary
The frequency converter of thermal effect becomes the problem of this field urgent need to resolve.
Utility model content
The utility model provides a kind of frequency converter, it is intended to which the heat dissipation effect and degree of protection for solving existing frequency converter cannot
The problem of combining.
To solve the above-mentioned problems, the utility model embodiment provides a kind of frequency converter comprising circuit unit dissipates
Hot component and box assembly, wherein the circuit unit includes circuit board group and heating device；The radiating subassembly includes dissipating
Hot device and radiator bearer, the radiator are pipeline configuration, and at least two lateral surfaces of the pipeline configuration are heat dissipation contact
Face；The radiator bearer is mounted on the radiator and fits closely with the heat dissipation contact surface, the radiator bearer
Upper side corresponding with the heat dissipation contact surface offers opening, and so that the heating device is directly fixed on, the heat dissipation is contacted
On face, the circuit board group is closely connect so as to be fixed on the heating device on the heat dissipation contact surface with the radiator bearer
Within enclosure space；The box assembly includes cabinet base, and fixed device is equipped with inside the cabinet base with fixation
The machine core being made of the radiating subassembly and the circuit unit, the cabinet base set that there are two ventilation opening, two is described logical
Air port is corresponding with the opening at the radiator both ends and makes to form the first air channel structure inside the radiator.
Further, the top side and the left and right sides of the radiator are heat dissipation contact surface；The heating device includes one
Rectifier bridge module and two groups of IGBT modules, the rectifier bridge module are fixed on the top side of the radiator, IGBT mould described in two groups
Block is individually fixed in the left and right sides of the radiator.
Further, the circuit board group includes a driving plate and two circuit boards, and the driving plate is fixed on the heat dissipation
So that the rectifier bridge module is within enclosure space, two circuit boards are respectively arranged on the radiator for the top side of device bracket
The left and right sides of bracket is be in corresponding IGBT module within enclosure space.
Further, the circuit board includes main part and the extension that extends downwardly from the main part, described
Main part is closely connect by fastener with the side of the radiator bearer, and the extension is equipped with capacitance component,
Capacitance component on two circuit boards is dislocatedly distributed and is located side by side at the bottom side of the radiator, the bottom of the radiator with
The second air channel structure is formed between the cabinet base, the capacitance component is placed in second air channel structure.
Further, the capacitor in the capacitance component is by adding prolonging for capacitor set or dispensing mode and the circuit board
Extending portion is tightly connected.
Further, the fixed device include two notchs, two notchs respectively with two circuit boards
Lower edge shape it is corresponding, by the cooperation of the circuit board and the notch, the machine core is installed on the cabinet
Labyrinth type connection is formed between chassis interior and the machine core and the cabinet base with by the heating device and described first
Air channel structure and the second air channel structure are isolated.
Further, the both ends of the radiator bearer be equipped with limit rib to limit the position that the radiator is installed,
The radiator bearer is closely connect by the limit rib with the open edge at the radiator both ends.
Further, the two sides of the bottom of the radiator bearer are equipped with dowel, the dowel and the circuit board
Lower end fitting contact and be fixed together to form hierarchic structure by fastener, to reinforce labyrinth type connection.
Further, the inner wall of the radiator is equipped with radiation tooth.
Further, the radiator bearer is plastic rubber bracket.
The utility model is laid out frequency converter component around radiator, in the case where not increasing new component, utilizes
General frequency converter has component: radiator and radiator bearer constitute radiating subassembly, and the heating device in circuit unit passes through
It is installed on radiator and realizes heat dissipation, while circuit board and the constituted frequency converter machine core of heat sink assembly, provided for heating device
Enclosure space is to protect heating device not by pollutant effects in air duct；Cabinet base is equipped with fixed structure, and the machine core is logical
It crosses fixed structure and is installed on cabinet base, provide independent ventiduct structure for radiator, while to improve its heat dissipation effect, also mention
Rise the protective performance of frequency converter entirety.The utility model reduces pollutant and fever by constructing special independent air channel structure
In the case where not increasing additional component the production cost for not increasing frequency converter is effectively ensured, and mention in the direct contact of device
The protective and stability of frequency converter are risen.
Detailed description of the invention
In order to illustrate more clearly of the utility model embodiment technical solution, will make below to required in embodiment description
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the perspective view of the explosion of circuit unit in an embodiment of the present invention；
Fig. 2 is the perspective view of the explosion of radiating subassembly in an embodiment of the present invention；
Fig. 3 is a certain visual angle schematic diagram of box assembly in an embodiment of the present invention；
Fig. 4 is another visual angle schematic diagram of box assembly in an embodiment of the present invention；
Fig. 5 is made of the perspective view of the explosion of machine core circuit unit in an embodiment of the present invention and radiating subassembly；
Fig. 6 is the schematic diagram of cooling stand in an embodiment of the present invention；
Fig. 7 is the schematic cross-section of frequency converter in an embodiment of the present invention；
Fig. 8 is the enlarged diagram of part A shown in Fig. 7；
Fig. 9 is air duct structural schematic diagram in an embodiment of the present invention.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the embodiments are a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that in this utility model term used in the description merely for the sake of description specific embodiment
Purpose and be not intended to limit the utility model.As used in the utility model specification and appended book
Like that, other situations unless the context is clearly specified, otherwise " one " of singular, "one" and "the" are intended to include plural number
Form.
It will be further appreciated that the term used in the utility model specification and appended book " and/
Or " refer to any combination and all possible combinations of one or more of associated item listed, and including these groups
It closes.
Fig. 1 to Fig. 9 is please referred to, an embodiment of frequency converter provided by the utility model is illustrated.Such as Fig. 1 to Fig. 3 institute
Show, frequency converter provided by the utility model includes circuit unit 10, radiating subassembly 20 and box assembly 30.Specifically, such as Fig. 1
Shown, circuit unit 10 includes circuit board group 101 and heating device 102.As shown in Fig. 2, the radiating subassembly 20 includes heat dissipation
Device 201 and radiator bearer 202, the radiator 201 are pipeline configuration, the left and right side of the pipeline configuration and top side face three
A side is heat dissipation contact surface；The radiator bearer 202 is mounted on the radiator 201 and tight with the heat dissipation contact surface
Closely connected conjunction, side corresponding with the heat dissipation contact surface offers opening for the heater on the radiator bearer 202
Part 102 is directly fixed on the heat dissipation contact surface, the circuit board group 101 closely connect with the radiator bearer 202 with
It is in the heating device 102 being fixed on the heat dissipation contact surface within enclosure space.Fig. 3 and Fig. 9 are please referred to, such as Fig. 3 institute
Show, the box assembly 30 includes cabinet base 301, and fixed device is equipped with inside the cabinet base 301 with fixed by described
The machine core that radiating subassembly 20 and the circuit unit 10 are constituted, the cabinet base 301 are equipped with ventilation opening 302, the ventilation
Mouth 302 is corresponding with the opening at 201 both ends of radiator and makes to form as shown in Figure 9 first inside the radiator 201
Air channel structure 304a.
Fig. 1, Fig. 2 and Fig. 5 are please referred to, it is described to dissipate in the present embodiment in an embodiment as shown in Figure 1, Figure 2 and shown in Fig. 5
The top side and the left and right sides of hot device 201 are heat dissipation contact surface；The heating device 102 include a rectifier bridge module 1021 and
IGBT module group 1022, wherein IGBT module group 1022 includes two groups of IGBT modules 1022a and 1022b.The rectifier bridge module
1021 are fixed on the top side of the radiator 201, and IGBT module 1022a and 1022b described in two groups are individually fixed in the heat dissipation
Device is respectively arranged at the two sides of radiator 201 to guarantee it to 102 Homogeneouslly-radiating of heating device by the left and right sides of device 201.
Understandably, in the other embodiments of the utility model, according to actual needs, IGBT module can be positioned only at radiator
Wherein side namely radiator need to only provide top side and control wherein side and need to only mention as heat dissipation contact surface namely radiator
For two heat dissipation contact surfaces.
With continued reference to FIG. 1, as shown in Figure 1, in the present embodiment, the circuit board group 101 includes one in an embodiment
Driving plate 1011 and two circuit board 1012a and 1012b, the driving plate 1011 are fixed on the radiator bearer by being spirally connected
So that the rectifier bridge module 1021 is within enclosure space, the two circuit board 1012a and 1012b distinguish for 202 top side
It is fixed on the radiator bearer 202 set on the left and right sides of the radiator bearer 202, and by being spirally connected, to make respectively
Corresponding IGBT module 1022a and 1022b is within enclosure space.So far, it is empty to be in closing for the heating device 102
Between within, by closing its space, guarantee the stability of 102 working environment of heating device, avoid by the dirt in air duct
Contaminating object influences, to improve the stability of complete machine.
Fig. 5 and Fig. 9 are please referred to, as shown in Fig. 5 and Fig. 9, in an embodiment, in the present embodiment, the circuit board 1012
Including main part 10121 and the extension 10122 extended downwardly from the main part 10121, the main part 10121 is logical
It crosses fastener closely to connect with the side of the radiator bearer 202, the extension 10122 is equipped with capacitance component
Capacitance component 1013 on 1013, the two circuit board 1012a and 1012b is dislocatedly distributed and is located side by side at the radiator 201
Bottom side, the second air channel structure 304b, the capacitor are formed between the bottom and the cabinet base 301 of the radiator 201
Component 1013 is placed in the second air channel structure 304b.For powerful capacitor, calorific value is relatively bigger, needs
The capacitor, which is placed in air duct, effectively to radiate for it；Understandably, in the other embodiments of the utility model, if institute
State that Capacitance Power is smaller, the calorific value of capacitor ontology can be completed by natural heat dissipation, then can be prevented by the way that a sealing structure is arranged
Air-flow enters the second air channel structure from air inlet, so that second air channel structure does not re-form air-flow, to prevent extraneous dirt
Object is contaminated by air flow contacts to capacitance component, and then increases the reliability and stability of complete machine.
With continued reference to FIG. 5, as shown in figure 5, in an embodiment, in the present embodiment, in the capacitance component 1013
The extension 10122 that capacitor 1013a covers 1013b and the circuit board 1012 by adding capacitor is tightly connected, to prevent air duct
In dust entered inside capacitor by capacitor pin, the performance of holding capacitor is not affected with dust with the service life.
Fig. 3 and Fig. 4 are please referred to, as shown in Figure 3 and Figure 4, in an embodiment, in the present embodiment, the fixed device packet
Notch 303 is included, the notch 303 is corresponding with the lower edge shape of two circuit boards 1012 respectively, by institute
The cooperation of circuit board 1012 Yu the notch 303 is stated, the machine core is installed on 301 inside of cabinet base and the machine
Between core and the cabinet base 301 formed labyrinth type connection, as shown in figure 9, to by each heating device 102 with it is described
First air channel structure 304a and the second air channel structure 304b are isolated.The labyrinth type connection is a kind of big windage structure, in fact
Matter is in space using multiple right-angled bend paths, when the part spacing very little in labyrinth structure, it can be achieved that preventing air
The effect of convection current is further ensured that the isolation of the first air channel structure 304a and the second air channel structure 304b.
Fig. 2 and Fig. 6 are please referred to, as shown in Fig. 2 and Fig. 6, in an embodiment, in the present embodiment, the radiator bearer
202 both ends are equipped with limit rib 2021 to limit the position that the radiator 201 is installed, and the radiator bearer 202 passes through
The limit rib 2021 is closely connect with the open edge at 201 both ends of radiator.
Fig. 6 to Fig. 8 is please referred to, as shown in Figure 6 to 8, in an embodiment, in the present embodiment, the radiator bearer
202 two sides of the bottom are equipped with dowel 2022, and the dowel 2022 contacts simultaneously with the fitting of the lower end of the circuit board 1012
It is fixed together to form hierarchic structure by fastener, to reinforce the labyrinth type connection.
In an embodiment, in the present embodiment, the inner wall of the radiator 201 is equipped with radiation tooth, to reinforce its heat dissipation
Performance.
In an embodiment, in the present embodiment, 201 bracket of radiator is the bracket of plastic cement material, to guarantee it absolutely
Edge simultaneously mitigates main screw lift.
Frequency converter provided by the utility model, it is close with radiating subassembly not merely with circuit board around radiating subassembly
It is connected as heating device and constructs enclosure space, ensure that the stabilization of heating device working environment, and by radiator branch
Limit rib and dowel are arranged on frame to cooperate with cabinet base, forms labyrinth type connection structure, so form the first air duct with
Second air duct, to ensure that the heat dissipation effect of complete machine is good.Capacitance component on circuit board is set to radiator bottom side and case
In the second air duct between body pedestal, while providing heat dissipation for the capacitance component, it is additionally provided with capacitor set, prevents the second wind
Dust in road is entered inside capacitor by capacitor root, while guaranteeing heat dissipation effect, also improves capacitance component
Degree of protection.The present embodiment is laid out in the case where not increasing additional auxiliary using existing component, can reduce its production
Cost increases product in the competitiveness in market.Particular topology is carried out to main devices by setting maze-type structure, is not only constructed
Independent ventiduct guarantees heat dissipation effect, improves its degree of protection, also to increase the stability of frequency converter.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can be readily occurred in various
Equivalent modifications or substitutions, these modifications or substitutions should be covered within the scope of the utility model.Therefore, this is practical
Novel protection scope should be subject to the protection scope in claims.
Claims (10)
1. a kind of frequency converter characterized by comprising circuit unit, radiating subassembly and box assembly, wherein the circuit group
Part includes circuit board group and heating device；The radiating subassembly includes radiator and radiator bearer, and the radiator is pipeline
Structure, at least two lateral surfaces of the pipeline configuration are heat dissipation contact surface；The radiator bearer is mounted on the radiator
It above and with the heat dissipation contact surface fits closely, side corresponding with the heat dissipation contact surface offers on the radiator bearer
Opening is directly fixed on the heat dissipation contact surface for the heating device, and the circuit board group and the radiator bearer are tight
It is close to connect so that the heating device being fixed on the heat dissipation contact surface is within enclosure space；The box assembly includes case
Body pedestal is equipped with fixed device inside the cabinet base and is made of with fixed the radiating subassembly and the circuit unit
Machine core, the cabinet base are set there are two ventilation opening, and two ventilation openings are corresponding with the opening at the radiator both ends and make
The first air channel structure is formed inside the radiator.
2. frequency converter according to claim 1, which is characterized in that the top side and the left and right sides of the radiator are heat dissipation
Contact surface；The heating device includes a rectifier bridge module and two groups of IGBT modules, and the rectifier bridge module is fixed on described dissipate
The top side of hot device, IGBT module described in two groups are individually fixed in the left and right sides of the radiator.
3. frequency converter according to claim 2, which is characterized in that the circuit board group includes a driving plate and two circuits
Plate, the driving plate is fixed on the top side of the radiator bearer so that the rectifier bridge module is within enclosure space, and two
The circuit board is respectively arranged on the left and right sides of the radiator bearer to make corresponding IGBT module be in closing respectively
Within space.
4. frequency converter according to claim 3, which is characterized in that the circuit board includes main part and from the main part
The extension extended downwardly, the main part is closely connect by fastener with the side of the radiator bearer, described
Extension is equipped with capacitance component, and the capacitance component on two circuit boards is dislocatedly distributed and is located side by side at the bottom of the radiator
Side, forms the second air channel structure between the bottom of the radiator and the cabinet base, the capacitance component is placed in described
In two air channel structures.
5. frequency converter according to claim 4, which is characterized in that the capacitor in the capacitance component is by adding capacitor set
Or the extension sealed connection of dispensing mode and the circuit board.
6. frequency converter according to claim 4, which is characterized in that the fixed device includes two notchs, described in two
Notch is corresponding with the lower edge shape of two circuit boards respectively, by matching for the circuit board and the notch
Close, the machine core be installed on inside the cabinet base and formed between the machine core and the cabinet base labyrinth type connection with
The heating device and first air channel structure and the second air channel structure are isolated.
7. frequency converter according to claim 1, which is characterized in that the both ends of the radiator bearer are equipped with limit rib to limit
The position that the radiator is installed is made, the radiator bearer passes through the opening edge of the limit rib and the radiator both ends
Edge closely connects.
8. frequency converter according to claim 1, which is characterized in that the two sides of the bottom of the radiator bearer are equipped with connection
Muscle, the dowel contact with the fitting of the lower end of the circuit board and are fixed together to form hierarchic structure by fastener,
To reinforce the labyrinth type connection.
9. frequency converter according to claim 1, which is characterized in that the inner wall of the radiator is equipped with radiation tooth.
10. frequency converter according to claim 1, which is characterized in that the radiator bearer is plastic rubber bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163472.5U CN209088800U (en) | 2018-12-21 | 2018-12-21 | A kind of frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163472.5U CN209088800U (en) | 2018-12-21 | 2018-12-21 | A kind of frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209088800U true CN209088800U (en) | 2019-07-09 |
Family
ID=67127280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822163472.5U Active CN209088800U (en) | 2018-12-21 | 2018-12-21 | A kind of frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209088800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110881265A (en) * | 2019-11-29 | 2020-03-13 | 广东美的暖通设备有限公司 | Air duct assembly, frequency conversion box body and centrifugal machine |
| CN110891406A (en) * | 2019-11-29 | 2020-03-17 | 广东美的暖通设备有限公司 | Frequency conversion box body and centrifugal machine |
-
2018
- 2018-12-21 CN CN201822163472.5U patent/CN209088800U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110881265A (en) * | 2019-11-29 | 2020-03-13 | 广东美的暖通设备有限公司 | Air duct assembly, frequency conversion box body and centrifugal machine |
| CN110891406A (en) * | 2019-11-29 | 2020-03-17 | 广东美的暖通设备有限公司 | Frequency conversion box body and centrifugal machine |
| CN110881265B (en) * | 2019-11-29 | 2021-05-04 | 上海美控智慧建筑有限公司 | Air duct assembly, frequency conversion box body and centrifugal machine |
| CN110891406B (en) * | 2019-11-29 | 2021-06-01 | 上海美控智慧建筑有限公司 | Frequency conversion box body and centrifugal machine |
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