CN202455251U - Cooling and dustproof structure of small frequency converter - Google Patents
Cooling and dustproof structure of small frequency converter Download PDFInfo
- Publication number
- CN202455251U CN202455251U CN2012200836768U CN201220083676U CN202455251U CN 202455251 U CN202455251 U CN 202455251U CN 2012200836768 U CN2012200836768 U CN 2012200836768U CN 201220083676 U CN201220083676 U CN 201220083676U CN 202455251 U CN202455251 U CN 202455251U
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- bracing frame
- electrochemical capacitor
- pcb board
- heat radiation
- dustproof construction
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Abstract
The utility model provides a cooling and dustproof structure of a small frequency converter. The cooling structure comprises a support frame in a case; a fan, a terminal PCB (printed circuit board) and an electrolytic capacitor are placed on the support frame and separated to form relatively independent air channels. In a working state, the fan can blow a radiator and the electrolytic capacitor at the same time, and exchanges heat with the components to be cooled. Through the combination of the support frame and the enclosure inner wall of the case, the cooling gas at an air inlet is prevented from carrying dust into the PCB of the frequency converter, and thus the reliability of the frequency converter is improved.
Description
Technical field
The utility model relates to a kind of heat radiation dustproof construction of micro frequency transformer, in particular, relates to micro frequency transformer and realizes that through the interior spatial structure collocation heat radiation of electrochemical capacitor and pcb board prevent dust.
Background technology
Frequency converter is to develop very fast a kind of novel energy-conserving product in recent years; In today of energy growing tension, frequency converter is as a kind of main means of AC speed regulating, with its very strong reliability and antijamming capability; In commercial production, obtain application more and more widely, had the vast market potentiality.In the low power frequency conversion device, the volume miniaturization is its main development trend.Existing micro frequency transformer wind-cooling heat dissipating device; Radiating mode normally utilizes fan turnover wind and fin to carry out heat exchange; What mainly solve is the power device heating problem; And can not get efficiently radiates heat by the electrochemical capacitor that radiator air passage separates, and cause the electrochemical capacitor life-span to descend, the frequency converter failure rate improves.The printed circuit board (PCB) of frequency converter is that the pcb board laying dust makes moist when forming conductive layer, also can cause integrity problem.
Therefore, a kind of rationally distributed again micro frequency transformer radiator structure simple in structure is provided, particularly reduces the electrochemical capacitor temperature rise, protection is principal contradictions that these those skilled in the art should address to steam fog and responsive pcb board and the components and parts of dust.
The utility model content
The technical problem that the utility model will solve provides a kind of heat radiation dustproof construction of micro frequency transformer, can not only improve electrochemical capacitor heating, and can stop that the air inlet refrigerating gas brings the dust of frequency converter pcb board into.
For solving the problems of the technologies described above; The utility model is tested specific temperature rise through thermal design analytical calculation and model machine; Electrochemical capacitor dependency structure to being separated by radiator air passage has originally been done improvement: blower fan, main terminal pcb board and electrochemical capacitor are placed by bracing frame in transduser cabinet inside, and cut off the relatively independent air channel of formation; Bracing frame is as vital part, and main terminal pcb board and other pcb board, electrochemical capacitor, blower fan are played the effect of forming a connecting link.
The Section Bar Heat Sinks part fin of this micro frequency transformer shortens the heater element electrochemical capacitor of making way in the air channel, equals in radiator, to reserve the space of placing electrochemical capacitor.
More than bracing frame pillar of this micro frequency transformer is fixing simultaneously through screw to main terminal pcb board and Section Bar Heat Sinks.
The bracing frame one side of this micro frequency transformer is passed by electrochemical capacitor, and vertical with it bracing frame enveloping surface, bracing frame pillar place face and end face surround the air channel with the casing inwall.
The main terminal pcb board of this micro frequency transformer becomes the T type to fasten butt welding with the driving PCB plate, promptly fixing line again is overlapped to form the space frame of compact and reasonable with other support connecting piece.
After adopting such structure, the air channel that bracing frame surrounds makes electrochemical capacitor in the sphere of action of blower fan, and Section Bar Heat Sinks part fin shortens easy realization and can not increase cost, keeps normal ambient temperature in working order down thereby reach electrochemical capacitor.In addition, through the partition of connection collocation of different pcb boards space and bracing frame, the components and parts on pcb board and the pcb board can not receive the contamination by dust that blower fan brings from the external world.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation, omitted components and parts such as terminal among the figure.
Fig. 1 is the internal heat dissipation structures stereogram of components and parts such as the utility model micro frequency transformer removal casing.
Fig. 2 is the front view of radiator structure shown in Figure 1.
Fig. 3 increases the left view that casing is represented in double dot dash line for radiator structure shown in Figure 2 comprises.
Fig. 4 is the stereogram of Fig. 1 to bracing frame shown in Figure 3.
Among the figure: 1, Section Bar Heat Sinks, 2, electrochemical capacitor, 3, bracing frame, 3a, bracing frame pillar; But 3b, bracing frame off-knocking plate, 3c, bracing frame enveloping surface, 4, blower fan, 5, the driving PCB plate; 6, main terminal pcb board, 7, the control terminal pcb board, 8, the master control pcb board; 9, connecting plate, 10, capacitor P CB plate, 11, casing.
Embodiment
To shown in Figure 3, present embodiment is fixed as matrix with Section Bar Heat Sinks 1 and casing 11 bottoms like Fig. 1, and bracing frame 3 is to support on the skeleton, connects down, makes to be integral with main terminal pcb board 6, capacitor P CB plate 10; 5 one-tenth T types of main terminal pcb board 6 and driving PCB plate fasten butt welding, and the capacitor P CB plate 10 that is welded with electrochemical capacitor 2 is through connecting plate 9, with control terminal pcb board 7 and master control pcb board 8 location.
Fig. 2 and Fig. 3 fill bracing frame 3 positions that blacking partly shows different directions, and the air-supply of blower fan 4 right-to-lefts gets into the heat dissipation channel that bracing frame 3 is divided into; The outer pcb board of heat dissipation channel has prevented that refrigerating gas from bringing the dust in the machine into, has further improved the reliability of frequency converter.
Can know the section configuration of Section Bar Heat Sinks 1 from Fig. 3, available aluminium draws and forms, and electrochemical capacitor 2 ends are placed on radiated rib and shorten the place, have promptly reduced machine volume, again with electrochemical capacitor 2 over against blower fan, made full use of air pressure circulation heat radiation.
Bracing frame shown in Figure 43 adopts the engineering plastics moulding, and one of them bracing frame pillar 3a connects fixedly main terminal pcb board 6 on Section Bar Heat Sinks 1 with screw; But off-knocking plate 3b is exactly the plectane of ining succession with thin muscle, is to select for use electrochemical capacitor 2 quantity to accept or reject according to the different capacity grade; Bracing frame enveloping surface 3c promptly provides heat dissipation environment round electrochemical capacitor 2, plays the dust-separation effect again.
The above is merely the preferred embodiment of the utility model; Be not so just limited the claim of the utility model; Every utilization the utility model claims the equivalent structure transformation that possibly comprise; Or directly or indirectly be used in other relevant technical field, all in like manner be included in the claim of the utility model.
Claims (5)
1. the heat radiation dustproof construction of a micro frequency transformer; Comprise transduser cabinet shell, Section Bar Heat Sinks, electrochemical capacitor and bracing frame; It is characterized in that: blower fan, main terminal pcb board and electrochemical capacitor are placed by bracing frame in this transduser cabinet inside, and cut off the relatively independent air channel of formation.
2. according to the heat radiation dustproof construction of the described micro frequency transformer of claim 1, it is characterized in that: said Section Bar Heat Sinks part fin shortens the heater element electrochemical capacitor of making way in the air channel.
3. according to the heat radiation dustproof construction of the described micro frequency transformer of claim 1, it is characterized in that: the support frame as described above pillar is fixing simultaneously through screw to main terminal pcb board and Section Bar Heat Sinks.
4. according to the heat radiation dustproof construction of claim 1 or 3 described micro frequency transformers; It is characterized in that: the support frame as described above one side is passed by electrochemical capacitor, and vertical with it bracing frame enveloping surface, bracing frame pillar place face and end face surround the air channel with the casing inwall.
5. according to the heat radiation dustproof construction of claim 1 or 3 described micro frequency transformers, it is characterized in that: the main terminal pcb board becomes the T type to fasten butt welding with the driving PCB plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200836768U CN202455251U (en) | 2012-03-08 | 2012-03-08 | Cooling and dustproof structure of small frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200836768U CN202455251U (en) | 2012-03-08 | 2012-03-08 | Cooling and dustproof structure of small frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202455251U true CN202455251U (en) | 2012-09-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200836768U Expired - Lifetime CN202455251U (en) | 2012-03-08 | 2012-03-08 | Cooling and dustproof structure of small frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202455251U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103702546A (en) * | 2013-12-10 | 2014-04-02 | 深圳市正弦电气股份有限公司 | Converter and radiating method |
| CN105555077A (en) * | 2015-11-27 | 2016-05-04 | 中国科学院近代物理研究所 | Plastic scintillator array detector front end electronics case of dark matter particle detection satellite |
| CN105658026A (en) * | 2014-12-03 | 2016-06-08 | 华为终端（东莞）有限公司 | Electronic terminal |
| CN105873420A (en) * | 2016-05-27 | 2016-08-17 | 华远电气股份有限公司 | Independent air duct structure of frequency converter |
| CN110198622A (en) * | 2019-07-02 | 2019-09-03 | 国电南瑞科技股份有限公司 | A kind of dust-proof subrack with high efficient heat dissipation performance |
| CN110402060A (en) * | 2018-04-18 | 2019-11-01 | 台达电子工业股份有限公司 | Frequency converter |
| US10849252B2 (en) | 2018-04-18 | 2020-11-24 | Delta Electronics, Inc. | Converter |
-
2012
- 2012-03-08 CN CN2012200836768U patent/CN202455251U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103702546A (en) * | 2013-12-10 | 2014-04-02 | 深圳市正弦电气股份有限公司 | Converter and radiating method |
| CN105658026A (en) * | 2014-12-03 | 2016-06-08 | 华为终端（东莞）有限公司 | Electronic terminal |
| CN105658026B (en) * | 2014-12-03 | 2018-11-13 | 华为终端（东莞）有限公司 | A kind of electric terminal |
| CN105555077A (en) * | 2015-11-27 | 2016-05-04 | 中国科学院近代物理研究所 | Plastic scintillator array detector front end electronics case of dark matter particle detection satellite |
| CN105555077B (en) * | 2015-11-27 | 2018-05-11 | 中国科学院近代物理研究所 | Detector array front-end electronics cabinet is dodged in the modeling of dark matter particle detection satellite |
| CN105873420A (en) * | 2016-05-27 | 2016-08-17 | 华远电气股份有限公司 | Independent air duct structure of frequency converter |
| CN105873420B (en) * | 2016-05-27 | 2018-09-28 | 华远电气股份有限公司 | A kind of independent ventiduct structure of frequency converter |
| CN110402060A (en) * | 2018-04-18 | 2019-11-01 | 台达电子工业股份有限公司 | Frequency converter |
| US10849252B2 (en) | 2018-04-18 | 2020-11-24 | Delta Electronics, Inc. | Converter |
| CN110198622A (en) * | 2019-07-02 | 2019-09-03 | 国电南瑞科技股份有限公司 | A kind of dust-proof subrack with high efficient heat dissipation performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |
|
| CX01 | Expiry of patent term |