CN102811591A - Variable frequency motor controller of washing machine - Google Patents
Variable frequency motor controller of washing machine Download PDFInfo
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- CN102811591A CN102811591A CN2012102794088A CN201210279408A CN102811591A CN 102811591 A CN102811591 A CN 102811591A CN 2012102794088 A CN2012102794088 A CN 2012102794088A CN 201210279408 A CN201210279408 A CN 201210279408A CN 102811591 A CN102811591 A CN 102811591A
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- washing machine
- metallic support
- frequency motor
- motor controller
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Abstract
The invention relates to the field of washing machines and discloses a variable frequency motor controller of a washing machine. The controller comprises a PCB (printed circuit board) and a shell, wherein the shell consists of a first metal bracket and a second bracket; the first metal bracket is mutually connected with the second bracket so as to form a sealed space; an outer surface of the sealed space is formed by the first metal bracket and the second bracket together; the PCB is arranged on the top plane of the first metal bracket; the PCB is arranged inside the sealed space; a power element is arranged on the back side of the PCB and has a clearance between the first metal bracket; a heat conduction medium is further filled into the clearance between the power element and the first metal bracket; the heat conduction medium is a heat conduction material with elasticity. With the adoption of the technical scheme, the heat radiation effect is improved, and the cost is reduced.
Description
Technical field
The present invention relates to the washing machine field, particularly a kind of washing machine variable-frequency motor controller.
Background technology
Traditional variable-frequency motor controller is that the associated electronic components with controller is contained in a pcb board (Printed Circuit Board; PCB) on; One group of power component is wherein arranged; This power component can produce bigger heat in the course of the work, and the radiator that need add a metal material usually is attached on the radiating surface of power component and dispels the heat.But because the operational environment of washing machine is more special,, its water resistance there is strict requirement, generally mounted pcb board is put into and carried out waterproof and the entering of anti-foreign matter in the airtight plastic housing in order to protect the reliability of internal electronic element.This moment, radiator was arranged in airtight plastic housing, and air flow property is poor, and the effect of heat exchange is also very poor, so the heat that heat sink radiates goes out still can not effectively also output to the outside of plastic housing timely.And in order to improve radiating effect, just need to increase the radiator of metal material usually, in the traditional scheme so the cost of product is also higher.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of washing machine variable-frequency motor controller, and this controller has good sealing property, and has improved radiating effect greatly, has reduced cost.
A kind of washing machine variable-frequency motor controller that the embodiment of the invention provides; Comprise: pcb board; Said pcb board is provided with and is used to control the control circuit of said washing machine variable-frequency motor and the electronic component of the said control circuit of a plurality of formations, in said electronic component, comprises power component.
Housing, said housing is made up of first metallic support and second support, and said first metallic support and said second support interconnect, and form an enclosure space, the common outer surface that constitutes said enclosure space of said first metallic support and second support.
End face at said first metallic support is equipped with said pcb board; Said pcb board is positioned at said enclosure space; Said power component has the space between the back side of said pcb board and said first metallic support; Space between said power component and said first metallic support also is filled with the heat conduction media, and said heat conduction media is the rubber-like Heat Conduction Material.
Wherein, alternatively, the junction of first metallic support and said second support is filled with rubber strip or polyvinyl chloride sponge strip.
Alternatively, first metallic support is aluminium material or iron material matter.
Alternatively; First metallic support has a cavity; Said second support also has a cavity, and the said first metallic support cavity hatch place is connected with the said second support cavity hatch place relatively, the common enclosure space that forms of said first metallic support cavity and the said second support cavity.
Alternatively, said first metallic support is dull and stereotyped, has a cavity on said second support; Said first metallic support and said second support interconnect; Specifically be that the cavity hatch place of said second support of said dull and stereotyped shutoff is said enclosure space by the said cavity of said dull and stereotyped shutoff.
Alternatively, the cavity hatch place of said second support of said dull and stereotyped shutoff, specifically be,
There is the first horizontal extension at the said second support cavity hatch place; The said first horizontal extension and said flat board fit; Said flat board is provided with bolt; The first horizontal extension of dull and stereotyped and said second support of said bolt-through, the cavity hatch place of said second support of said dull and stereotyped shutoff, said flat board and said second are configured to an enclosure space.
Alternatively; Second support also is provided with second extension, and second extension is connected with the said first horizontal extension, and with the said first horizontal extension not in same plane; Said second extension is provided with bolt, is used for said controller is connected with said washing machine miscellaneous part.
Alternatively, second support is plastic material or metal material.
Alternatively, controller also comprises erection column, and said erection column is an insulator, and an end of said erection column is provided with head, and said erection column runs through pcb board from the head, said first metallic support of other end precession.
Alternatively, the outer surface of first metallic support is provided with the rib or the fin of convex-concave, or the frosted layer.
Therefore; Use the present embodiment technical scheme, because first metallic support and second support form enclosure space, first metallic support is as the part of shell; Practiced thrift cost; And first metallic support is connected through the heat conduction media with power component, has reduced thermal resistance, has improved the effect of heat radiation.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of washing machine variable-frequency motor controller that Fig. 1 provides for the embodiment of the invention 1;
The structural representation of a kind of washing machine variable-frequency motor controller that Fig. 2 provides for the embodiment of the invention 2;
The structural representation of a kind of washing machine variable-frequency motor controller that Fig. 3 provides for the embodiment of the invention 3.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment 1:
Present embodiment provides a kind of washing machine variable-frequency motor controller; Its structure is referring to shown in the accompanying drawing 1; Wherein pcb board 20 is provided with and is used to control the control circuit of said washing machine variable-frequency motor and the electronic component of the said control circuit of a plurality of formations, such as all there is electronic component the top and bottom of pcb board, electronic component 22 is installed below the pcb board 20; Electronic component 24 is installed above; Other electronic component perhaps also is installed, and wherein electronic component 22 is power components, and this power component 22 can produce bigger heat in the course of the work.
First metallic support 10 and second support 12 all have a cavity; Two cavity hatch connect the common enclosure space that constitutes relatively; Pcb board 20 is positioned at the enclosure space that is formed jointly by first metallic support 10 and second support 12, first metallic support 10 and second support, the 12 common outer surfaces that form enclosure space.First metallic support 10 is as the part of shell, and power component 22 is dispelled the heat, first metallic support 10 can but be not limited to adopt good aluminium material of thermal diffusivity or the manufacturing of iron material matter.Second support 12 can but be not limited to use plastic material or metal material to make, for example have the aluminium material or the iron material matter of good radiating effect, the perhaps comparatively cheap plastic material of price should be looked whole heating effect and controller mounting means and decides.Second support 12 has protective action, and can prevent has water to be splashed in the exposed and laundry processes of electronic component on the pcb board 20, and preventing to produce foreign matters such as Danger Electric shock risk and small worm, to get into controllers inner.In order further to strengthen waterproof effect; Make the junction of the win metallic support 10 and second support 12 not have the space; Can but be not limited to junction filled rubber bar or polyvinyl chloride (Poly Vinyl Chloride, PVC) sponge strip at first metallic support 10 and second support 12.Also be provided with the wiring hole that is connected with external equipment on second support 12, be used for controller and be connected with line between the external equipment.
Pcb board is fixedly mounted on first metallic support 10, pcb board can but be not limited to use erection column 40 to be fixed on first metallic support 10, erection column 40 is an insulator; Such as plastic material; All there is screw thread at the two ends of erection column 40, and an end is provided with head, and erection column runs through pcb board from the head; Other end precession first metallic support 10 makes pcb board be fixedly connected with first metallic support 10.
Certain clearance (usually in the scope of 0.5mm to 3mm) is arranged between the pcb board 20 and first metallic support 10.Because can not guarantee that in the assembling process of producing the setting height(from bottom) of each power component 22 is all consistent.And the position of pcb board 20 in enclosure space fixed, so keep between radiating surface and first metallic support 10 of power component 22 certain distance arranged, and prevents when fixing pcb board 20, to weigh wounded power component 22.Because this gap is bigger, can not fill the purpose that the gap reaches heat transfer through the mode that applies heat dissipating silicone grease (oil), because the flowability of silicone grease (oil) is bigger, under the bigger situation in gap, can not mould fixed or moulding.The Heat Conduction Material 30 that space in this programme between the power component 22 and first metallic support 10 is filled with certain resiliency compressible is as the heat conduction media, and Heat Conduction Material generally adopts heat-conducting glue.Utilize the retractility of Heat Conduction Material that the radiating surface of power component 22 is closely contacted with Heat Conduction Material, Heat Conduction Material also is tight the contact with first metallic support 10.Like this, the enough thermal resistance transmission with minimum of the heat energy that module produces make it the heat-transfer effect that reaches maximum.
Because in the present technique scheme; First metallic support is used to protect inner electronic components mounted as the part of shell, as radiator power component is dispelled the heat again, and and the space of power component between be filled with flexible heat conduction media; Make radiating surface closely contact; Reduce thermal resistance, improved the efficient of heat radiation, the input of having practiced thrift cost.And at the junction of first metallic support and second support filled rubber bar or polyvinyl chloride sponge strip, improved the closure of first metallic support and the second support junction greatly, can better protect inner electronic component.
Embodiment 2:
Present embodiment provides other a kind of washing machine variable-frequency motor controller; Its structure is referring to shown in Figure 2; The difference of present embodiment and embodiment 1 is, first metallic support 10 be shaped as flat board, second support 12 has a cavity; There is the first horizontal extension 14 at second support, 12 cavity hatch places; The first horizontal extension 14 fits with dull and stereotyped first metallic support 10, and dull and stereotyped first metallic support 10 is provided with bolt 50, and bolt 50 runs through the first horizontal extension 14 of dull and stereotyped first metallic support 10 and second support 12; Make the cavity hatch place of dull and stereotyped first metallic support, 10 shutoff, second support 12, first metallic support 10 and second support 12 form an enclosure space.
In order to strengthen the radiating effect of first metallic support 10; First metallic support 10 is done some processing; Such as: concavo-convex rib 60 being set on first metallic support, 10 outer surfaces or fin is set increases area of dissipation; Perhaps first metallic support, 10 outer surfaces are turned black, frosted is handled and is strengthened heat radiation radiation or the like.
Because in the present technique scheme, first metallic support links together through the first horizontal extension at the bolt and the second carrier openings place, has further strengthened the performance of waterproof.Through the rib or the frosted layer of convex-concave are set at first metal support surface, make the radiating effect of washing machine variable-frequency motor controller improve greatly.First metallic support is dull and stereotyped in this programme, has further practiced thrift the cost input.
Embodiment 3:
Present embodiment also provides a kind of washing machine variable-frequency motor controller; Its structure is referring to shown in Figure 3, and the difference of present embodiment and embodiment 2 is that second support 12 also is provided with second extension 16 in the present embodiment; Second extension 16 is connected with the first horizontal extension 14; And with the first horizontal extension 14 not in same plane, second extension 16 is provided with bolt 70, bolt 70 is used for being connected of controller and washing machine miscellaneous part; The outer surface of second support 12 also is provided with installing hole 18, is used for being connected of washing machine variable-frequency motor controller and washing machine miscellaneous part.
The needs that the cavity geometry of second support 12 can dispel the heat, install or protect according to reality are designed to other different shape; Save material and space; It is suitable that but its opening part will guarantee with the shape of first metallic support 10, so that form enclosure space with first metallic support 10.
Because in the present technique scheme; Second extension of second support and first extension help the waterproof of enclosure space not in same plane, strengthened the waterproof effect of controller; And the shape of second support can be improved according to the needs of reality, has strengthened the applicability of this controller.
Above-described execution mode does not constitute the qualification to this technical scheme protection range.The modification of being done within any spirit and principle at above-mentioned execution mode, be equal to replacement and improvement etc., all should be included within the protection range of this technical scheme.
Claims (10)
1. washing machine variable-frequency motor controller is characterized in that said controller comprises:
Pcb board, said pcb board are provided with and are used to control the control circuit of said washing machine variable-frequency motor and the electronic component of the said control circuit of a plurality of formations, in said electronic component, comprise power component;
Housing, said housing is made up of first metallic support and second support, and said first metallic support and said second support interconnect, and form an enclosure space, the common outer surface that constitutes said enclosure space of said first metallic support and second support;
End face at said first metallic support is equipped with said pcb board; Said pcb board is positioned at said enclosure space; Said power component has the space between the back side of said pcb board and said first metallic support; Space between said power component and said first metallic support also is filled with the heat conduction media, and said heat conduction media is the rubber-like Heat Conduction Material.
2. washing machine variable-frequency motor controller as claimed in claim 1 is characterized in that,
The junction of said first metallic support and said second support is filled with rubber strip or polyvinyl chloride sponge strip.
3. washing machine variable-frequency motor controller as claimed in claim 1 is characterized in that, said first metallic support is aluminium material or iron material matter.
4. washing machine variable-frequency motor controller as claimed in claim 1; It is characterized in that; Said first metallic support has a cavity; Said second support also has a cavity, and the said first metallic support cavity hatch place is connected with the said second support cavity hatch place relatively, the common enclosure space that forms of said first metallic support cavity and the said second support cavity.
5. washing machine variable-frequency motor controller as claimed in claim 1 is characterized in that,
Said first metallic support is dull and stereotyped, has a cavity on said second support,
Said first metallic support and said second support interconnect, specifically be,
The cavity hatch place of said second support of said dull and stereotyped shutoff,
By the said cavity of said dull and stereotyped shutoff is said enclosure space.
6. washing machine variable-frequency motor controller as claimed in claim 5 is characterized in that,
The cavity hatch place of said second support of said dull and stereotyped shutoff, specifically be,
There is the first horizontal extension at the said second support cavity hatch place; The said first horizontal extension and said flat board fit; Said flat board is provided with bolt; The first horizontal extension of dull and stereotyped and said second support of said bolt-through, the cavity hatch place of said second support of said dull and stereotyped shutoff, said flat board and said second are configured to an enclosure space.
7. washing machine variable-frequency motor controller as claimed in claim 6; It is characterized in that; Said second support also is provided with second extension, and said second extension is connected with the said first horizontal extension, and with the said first horizontal extension not in same plane; Said second extension is provided with bolt, is used for said controller is connected with said washing machine miscellaneous part.
8. washing machine variable-frequency motor controller as claimed in claim 1 is characterized in that said second support is plastic material or metal material.
9. washing machine variable-frequency motor controller as claimed in claim 1 is characterized in that said controller also comprises erection column; Said erection column is an insulator; One end of said erection column is provided with head, and said erection column runs through pcb board from the head, said first metallic support of other end precession.
10. washing machine variable-frequency motor controller as claimed in claim 1 is characterized in that the outer surface of said first metallic support is provided with the rib or the fin of convex-concave, or the frosted layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102794088A CN102811591A (en) | 2012-08-08 | 2012-08-08 | Variable frequency motor controller of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102794088A CN102811591A (en) | 2012-08-08 | 2012-08-08 | Variable frequency motor controller of washing machine |
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| Publication Number | Publication Date |
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| CN102811591A true CN102811591A (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102794088A Pending CN102811591A (en) | 2012-08-08 | 2012-08-08 | Variable frequency motor controller of washing machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853563A (en) * | 2014-02-19 | 2015-08-19 | 联想(北京)有限公司 | Electronic equipment |
| CN106793679A (en) * | 2016-11-29 | 2017-05-31 | 无锡小天鹅股份有限公司 | The circuit board module of device for clothing processing and device for clothing processing |
| CN108832862A (en) * | 2018-06-14 | 2018-11-16 | 苏州工业园区职业技术学院 | A kind of electric machine controller and its control method for a variety of variable-frequency washing machines |
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| US20040094293A1 (en) * | 2001-04-23 | 2004-05-20 | Kunihiko Mita | Heat radiating member |
| CN201037019Y (en) * | 2007-05-09 | 2008-03-19 | 天津市松正电子有限公司 | Sealed type controller housing structure |
| CN101629751A (en) * | 2009-08-13 | 2010-01-20 | 芜湖宏晟金属制品有限公司 | Lighting ventilator |
| CN201584403U (en) * | 2009-12-29 | 2010-09-15 | 华为技术有限公司 | Chip cooling device and chip |
| CN201805622U (en) * | 2010-08-23 | 2011-04-20 | 中兴通讯股份有限公司 | Printed circuit board component and electronic equipment |
| CN202121492U (en) * | 2011-07-08 | 2012-01-18 | 深圳市易拓威科技有限公司 | Power source and power source casing thereof |
| CN202738362U (en) * | 2012-08-08 | 2013-02-13 | 慈溪市顺达实业有限公司 | Washing machine variable frequency motor controller |
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- 2012-08-08 CN CN2012102794088A patent/CN102811591A/en active Pending
Patent Citations (9)
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| US5910884A (en) * | 1998-09-03 | 1999-06-08 | International Business Machines Corporation | Heatsink retention and air duct assembly |
| US20040094293A1 (en) * | 2001-04-23 | 2004-05-20 | Kunihiko Mita | Heat radiating member |
| CN201037019Y (en) * | 2007-05-09 | 2008-03-19 | 天津市松正电子有限公司 | Sealed type controller housing structure |
| CN101629751A (en) * | 2009-08-13 | 2010-01-20 | 芜湖宏晟金属制品有限公司 | Lighting ventilator |
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| CN202738362U (en) * | 2012-08-08 | 2013-02-13 | 慈溪市顺达实业有限公司 | Washing machine variable frequency motor controller |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853563A (en) * | 2014-02-19 | 2015-08-19 | 联想(北京)有限公司 | Electronic equipment |
| CN106793679A (en) * | 2016-11-29 | 2017-05-31 | 无锡小天鹅股份有限公司 | The circuit board module of device for clothing processing and device for clothing processing |
| CN106793679B (en) * | 2016-11-29 | 2019-09-17 | 无锡小天鹅电器有限公司 | The circuit board module of device for clothing processing and device for clothing processing |
| CN108832862A (en) * | 2018-06-14 | 2018-11-16 | 苏州工业园区职业技术学院 | A kind of electric machine controller and its control method for a variety of variable-frequency washing machines |
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Application publication date: 20121205 |