CN203761739U - Motor controller - Google Patents
Motor controller Download PDFInfo
- Publication number
- CN203761739U CN203761739U CN201420017822.6U CN201420017822U CN203761739U CN 203761739 U CN203761739 U CN 203761739U CN 201420017822 U CN201420017822 U CN 201420017822U CN 203761739 U CN203761739 U CN 203761739U
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- China
- Prior art keywords
- heat
- electric machine
- machine controller
- housing
- transfer device
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Abstract
The utility model belongs to the technical field of a motor controller. A motor controller comprises a heat conduction apparatus which is at least filled with thermal conductors including phase change material in a sealed manner. A housing of the heat conduction apparatus is made of heat conduction material. A circuit board of the motor controller is supported inside the housing in an insulated manner. The circuit board or components needing heat dissipation is tightly adhered to the heat conduction apparatus. Heat dissipation channels of the motor controller are formed among the components needing heat dissipation, the housing of the heat conduction apparatus and the thermal conductors of the motor controller. Phase change material is applied to the controller, a lot of heat produced by a power tube or a circuit board is absorbed by the phase change material, heat absorbed during a phase change process is mostly used for phase change of substances, a small amount of the heat is used for temperature rises, and then the temperature of the phase change material increases a little during the phase change process. Therefore, the overall temperature of a product increases slowly and thus the sufficient time is provided for heat dissipation of the outer surface of the housing.
Description
Technical field
The utility model belongs to electric machine controller technical field, refers in particular to a kind of electric machine controller.
Background technology
Described electric machine controller at present conventional power device is field effect transistor or IGBT etc., the heat energy that power device work produces be all by and metal guide (faling apart) the hot body mode heat conduction of pressing.Power device and metallic heat dissipating part must separately add the insulants such as heat insulating lamella mutually insulated in addition.This type of heat-conducting mode relates to pressing installation procedure and processing again Insulation Problems of power device and metal heat-conducting device.And due to technical conditions restriction at present, reach the object of electric machine controller, the quantity of power demand device is not from 6 to 48 etc., to 6 power devices to 48 quantity should be pressed on metal heat-conducting device, the metal heat-conducting device of suing for peace again insulation, processing technology is complicated, and heat-conducting effect is bad.
For this reason, application number is that 201210320193.X disclosed a kind of electric machine controller, the circuit board insulating supporting of the electric machine controller containing power device, in the can of sealing, is filled with to the liquid of insulating heat-conductive in can, what the wire insulation of connection electric machine controller sealed draws outside can.This patent adopts the outside heat conduction of liquid, the simple and good heat conductivity of processing technology.
But in practice process, applicant finds to be filled with in can the liquid of insulating heat-conductive, liquid has the effect of expanding with heat and contract with cold, even if be reserved with the air expanding with heat and contract with cold for liquid in housing, still, sealing in whole can easily causes problem, is easy to thus cause leakage of oil.Once cause leakage of oil, this just easily causes whole controller can not be suitable for a lot of occasions, has greatly reduced the scope of application of electric machine controller, even causes the loss that some other is unnecessary.
Utility model content
The purpose of this utility model is to be to provide a kind of electric machine controller, to solve in prior art middle shell, is reserved with the air expanding with heat and contract with cold for liquid, and the sealing in whole can easily causes problem, is easy to thus cause the technical problem of leakage of oil.
The purpose of this utility model is achieved in that
A kind of electric machine controller, also comprise that at least one sealing is filled with the heat-transfer device of phase-change material heat carrier, the housing of heat-transfer device is that heat-conducting is made, by the circuit board insulating supporting of electric machine controller in housing, circuit board maybe needs the components and parts of heat radiation to fit tightly in described heat-transfer device, described electric machine controller need heat radiation elements, to the heat dissipation channel that forms electric machine controller between the housing of heat-transfer device, heat carrier.
Preferably, a side of described heat-transfer device fits in the components and parts that described circuit board maybe needs heat radiation, and opposite side fits on the housing of the described controller with heat conduction function.
And sealing is equipped with and is had the heat carrier that heat conduction function comprises phase-change material, oil or water in heat-transfer device.Phase-change material comprises that the paraffin of solid-liquid phase change comprises the composite material of paraffin.
A kind of electric machine controller, also comprise a housing, at least one side of housing is made the heat-transfer device that at least one sealing is filled with heat carrier, the housing of heat-transfer device is that heat-conducting is made, by the circuit board insulating supporting of electric machine controller in housing, circuit board maybe needs the components and parts of heat radiation to fit in described heat-transfer device, and the housing that needs heat radiation elements, heat-transfer device of described electric machine controller, heat carrier form the heat dissipation channel of electric machine controller.
Preferably, the interior sealing of heat-transfer device is equipped with and is had the heat carrier that heat conduction function comprises phase-change material, oil or water.Phase-change material comprises the paraffin of solid-liquid phase change or comprises the composite material of paraffin.
The utility model compared to existing technology outstanding and useful technique effect is:
1, the utility model is applied to phase-change material in controller, there is this phase-change material, the heat that power tube or circuit board produce is just absorbed in a large number by it, and its heat majority of absorbing in phase transition process is for the phase transformation of material, minority is for the lifting of temperature, and in its phase transformation, its temperature just promotes seldom so, and the whole temperature rise of product is just slow like this, after temperature rise is slow, just can dispel the heat to the more sufficient time of outer surface of outer cover.
2, make phase-change material follow housing to form integral body, i.e. a heat-transfer device.Heat-transfer device can directly be processed, and like this, only wiring board directly need to be contacted with heat-transfer device, power tube and heat-transfer device are close to, the upper cover that then closes, and product is with regard to out, and convenient for production, simple and direct, technique is also uncomplicated.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of the utility model the first embodiment.
Embodiment
Embodiment mono-
Below in conjunction with accompanying drawing, with specific embodiment, the utility model is further described, referring to Fig. 1: a kind of electric machine controller, also comprise that at least one sealing is filled with the heat-transfer device of heat carrier, the housing of heat-transfer device is that heat-conducting (as metal material, aluminium etc.) is made, by the circuit board of electric machine controller 4 insulating supportings in housing, circuit board 4 maybe needs the components and parts of heat radiation to fit tightly in heat-transfer device, electric machine controller need heat radiation elements 4, to the heat dissipation channel that forms electric machine controller between the housing of heat-transfer device, heat carrier.Housing can be aluminium body, also can make of carbon fiber, and carbon fiber heat conduction is better, and just cost is high, is not limited to aluminum hull.
Take Fig. 1 as example, motor controller casing comprises lower house 13, described lower house 13 is open container, the airtight container that the housing of described heat-transfer device is comprised of lower house 13 or part lower house and seal cover board 2, and described heat carrier is placed in described airtight container 14.In this example, lower house comprises the sidepiece that lower house bottom, four sides form.In the stage casing of sidepiece, one shelves are set, to can place seal cover board 2, make seal cover board 2 and lower house bottom, part sidepiece form the heat-transfer device of a sealing.Certainly, also can be arranged in upper shell separately or in the lump.Motor controller casing comprises upper shell, and described upper shell is open container, the airtight container that the housing of described heat-transfer device is comprised of upper shell or part upper shell and seal cover board, and described heat carrier is placed in described airtight container.
Certainly Fig. 1 is only a kind of example, can be also that heat-transfer device is an independent seal member, is directly placed in electric machine controller.One side of described heat-transfer device fits in the components and parts that described circuit board maybe needs heat radiation, and opposite side fits on the housing of the described controller with heat conduction function.Like this, electric machine controller need heat radiation elements, to housing, the heat carrier of heat-transfer device, arrive the housing of will body device, the housing of controller again, form more complete heat dissipation channel.
In this example, the interior sealing of heat-transfer device is equipped with and is had the heat carrier that heat conduction function comprises phase-change material, oil or water.Phase-change material can be from phase transformation to liquid or have the oil of heat absorption function, water or other liquid.And heat-transfer device can be an obturator, when having, heat-transfer device well do not lead can property time, can change heat-transfer device.In addition, heat-transfer device can be a plurality of, makes different size, different specific heat capacity specification, is used in different regions, different occasions.
Phase-change material can comprise that the paraffin of solid-liquid phase change comprises the composite material of paraffin.
Applicant finds: phase-change material (PCM-Phase Change Material) refers to and varies with temperature and change physical property and the material of latent heat can be provided.The process that changes physical property is called phase transition process, and at this moment phase-change material will absorb or discharge a large amount of latent heat.Once this material is widely used human lives, the best environmental protection carrier of energy-conserving and environment-protective will be become.
Phase-change material has the ability that changes its physical state in certain temperature range.Take solid-liquid phase change as example, when being heated to fusion temperature, just produce the phase transformation from solid-state to liquid, in the process of fusing, phase-change material absorbs and stores a large amount of latent heat; When phase-change material is cooling, the heat of storage goes will be dispersed into environment in certain temperature range in, carries out from liquid state to solid-state reverse transformation.In these two kinds of phase transition process, energy stored or that discharge is called latent heat of phase change.When physical state changes, the temperature of material self almost remains unchanged before phase transformation completes, and forms a wide temperature platform, although temperature-resistant, the latent heat that absorbs or discharge is quite large.
For this reason, applicant considers phase-change material to be applied in electric machine controller, and in electric machine controller, an important problem is heat dissipation problem.The heat that existing controller distributes will be delivered to the outer surface of aluminum hull by aluminum hull, outer surface by the convection current with outside air, is gone out dissipation of heat again, and in background technology, mentions 201210320193.X, is exactly at interiors of products filling insulating heat-conductive oil.Applicant finds that this oil can not be the effect of heat conduction in fact, the effect of this oil is used for heat accumulation and uses, just be equivalent to an absorber, the heat of power tube product has been absorbed with aluminum hull by oil, such temperature rise is just slow, if remove oil, the temperature rise of shell is just fast so, because the heat that should be absorbed by oil is all to aluminum hull, if so there is no oil, very fast with regard to temperature rise with regard to light aluminum hull, in other words, if oily part volume is all changed into aluminium, be equivalent to aluminum hull to do thick doing greatly, its temperature rise is also slow so, but temperature rise still can be faster with oily combination than same aluminium, this just relates to the concept of a specific heat capacity, the meaning of specific heat capacity is exactly the object of same volume, give its same heat, first object rising temperature 10 degree, second object rising temperature 15 degree, the specific heat capacity of first is just good than second so.
For this reason, applicant looks for a kind of material, and heat conduction is better than oil, and specific heat capacity is better than oil, and economical and practical, and is not to belong to liquid category, and after using so this material displace oil, heat conduction is good, and temperature rise is slow.Because in a zero point, it can undergo phase transition phase-change material, it just need to absorb a lot of heats and just can complete this process like this, like this, the heat that power tube or circuit board produce is just absorbed in a large number by it, and its heat majority of absorbing in phase transition process is for the phase transformation of material, minority is for the lifting of temperature, in its phase transformation, its temperature just promotes seldom so, the whole temperature rise of product is just slow like this, after temperature rise is slow, just can dispel the heat to the more sufficient time of aluminum hull outer surface, and applicant finds, paraffin is as a kind of phase-change material, it is after 60 degree are phase-changed into liquid state, the volume that it and conduction oil are same, absorb onesize heat, for example conduction oil temperature rising 4 in a minute is spent, become so after liquid paraffin phase change material 2 degree that only raise, namely the specific heat capacity of paraffin is 2 times of specific heat capacity of conduction oil.
After phase-change material is filled in the middle of product, after temperature lowers, can become solid-state, in the time of product repairing, also to give its external temperature, making solid-state phase-change material become liquid pours off, and product is not necessarily clean after pouring off, maintenance is inconvenient, and they are two years old, produce inconvenient, phase-change material needs certain temperature to maintain in liquid, has so just increased the difficulty of filling, and they are three years old, if phase-change material is directly annotated in product, very high to seal request, must guarantee the positive confinement of product, complex manufacturing.So in order overcoming the above problems, exactly phase-change material to be directly sealed in to housing (such as having the can of heat conduction function) the inside, to make phase-change material follow housing to form integral body, i.e. a heat-transfer device.Heat-transfer device can directly be processed, and like this, only wiring board directly need to be contacted with heat-transfer device, power tube and heat-transfer device are close to, the upper cover that then closes, and product is with regard to out, and convenient for production, simple and direct, technique is also uncomplicated.
Heat-transfer device can be done one, can be also a plurality of, needs thermal component to dispel the heat respectively, greatly heat radiation with circuit board or other.And phase-change material cost is lower than conduction oil, thermal conductivity ratio heat conduction innage, specific heat ratio conduction oil is good.If want power to do greatly, also can only heat-transfer device volume need to be done greatly to the more phase-change material of then annotating inside, and the fine aluminium shell of equal volume, with the aluminum hull of same volume, phase-change material combination is compared, aluminum hull is low with the combination cost of phase-change material, and temperature rise is slow.
In this example, a side of heat-transfer device fits in the element of the needs heat radiation on circuit board 2, and opposite side fits on the housing of the described controller with heat conduction function, like this can heat radiation.
Certainly the mode arranging is varied, not limited thereto.
The utility model can also be another kind of electric machine controller, also comprise a housing, at least one side of housing is made the heat-transfer device that at least one sealing is filled with heat carrier, the housing of heat-transfer device is that heat-conducting is made, by the circuit board insulating supporting of electric machine controller in housing, circuit board maybe needs the components and parts of heat radiation to fit in described heat-transfer device, and the housing that needs heat radiation elements, heat-transfer device of described electric machine controller, heat carrier form the heat dissipation channel of electric machine controller.That is, housing comprises some sidewalls and diapire, wherein the whole heat-transfer device of making of a sidewall or diapire.In heat-transfer device, sealing is equipped with and is had the heat carrier that heat conduction function comprises phase-change material, oil or water.
Phase-change material comprises the paraffin of solid-liquid phase change or comprises the composite material of paraffin.
The phase transition temperature of phase-change material can be 20-100 degree.
The little current feed of above-mentioned electric machine controller circuit plate (for example holding wire) is drawn housing by sealing device encapsulation process or is electrically connected to the socket being arranged in housing sidewall, carries out encapsulation process between housing sidewall and socket.
The utility model for two taking turns, the electric machine controller such as three-wheel, four-wheel electric motor car, fork truck, electric automobile all can conveniently implement.Above-described embodiment is only the preferred embodiment of the utility model on a kind of electric vehicle motor controller; not limit according to this protection range of the present utility model; therefore: all equivalences of doing according to structure of the present utility model, shape, size, principle change, within all should being covered by protection range of the present utility model.
The utility model preferred embodiment is just for helping to set forth the utility model.Preferred embodiment does not have all details of detailed descriptionthe, and also not limiting this utility model is only described embodiment.Obviously, according to the content of this specification, can make many modifications and variations.These embodiment are chosen and specifically described to this specification, is in order to explain better principle of the present utility model and practical application, thereby under making, technical field technical staff can utilize the utility model well.The utility model is only subject to the restriction of claims and four corner and equivalent.
Claims (10)
1. an electric machine controller, the components and parts and the motor controller casing that comprise circuit board, needs heat radiation, it is characterized in that, also comprise that at least one sealing is filled with the heat-transfer device of heat carrier, the housing of heat-transfer device is that heat-conducting is made, by the circuit board insulating supporting of electric machine controller in motor controller casing, circuit board maybe needs the components and parts of heat radiation to fit tightly in described heat-transfer device, forms the heat dissipation channel of electric machine controller between the components and parts of the needs of described electric machine controller heat radiation, the housing of heat-transfer device, heat carrier.
2. electric machine controller as claimed in claim 1, is characterized in that, heat carrier comprises that phase-change material, conduction oil or other have the object of heat conductivility.
3. electric machine controller as claimed in claim 1, it is characterized in that, motor controller casing comprises lower house, described lower house is open container, the airtight container that the housing of described heat-transfer device is comprised of lower house or part lower house and seal cover board, described heat carrier is placed in described airtight container.
4. the electric machine controller as described in claim 1 or 3, it is characterized in that, motor controller casing comprises upper shell, described upper shell is open container, the airtight container that the housing of described heat-transfer device is comprised of upper shell or part upper shell and seal cover board, described heat carrier is placed in described airtight container.
5. electric machine controller as claimed in claim 1 or 2, is characterized in that, a side of described heat-transfer device fits in the components and parts that described circuit board maybe needs heat radiation, and opposite side fits on the described controller housing with heat conduction function.
6. electric machine controller as claimed in claim 2, is characterized in that, the paraffin that phase-change material is solid-liquid phase change or comprise the composite material of paraffin.
7. an electric machine controller, it is characterized in that, also comprise a housing, at least one side of housing is made the heat-transfer device that at least one sealing is filled with heat carrier, the housing of heat-transfer device is that heat-conducting is made, by the circuit board insulating supporting of electric machine controller, in housing, circuit board maybe needs the components and parts of heat radiation to fit in described heat-transfer device, and the housing that needs heat radiation elements, heat-transfer device of described electric machine controller, heat carrier form the heat dissipation channel of electric machine controller.
8. electric machine controller as claimed in claim 7, is characterized in that, in heat-transfer device, the heat carrier with heat conduction function is equipped with in sealing, and described heat carrier is the heat carrier that comprises phase-change material, oil or water.
9. electric machine controller as claimed in claim 8, is characterized in that, phase-change material comprises the paraffin of solid-liquid phase change or comprises the composite material of paraffin.
10. an electric motor car, comprises that claim 1 is to the electric machine controller of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017822.6U CN203761739U (en) | 2014-01-13 | 2014-01-13 | Motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017822.6U CN203761739U (en) | 2014-01-13 | 2014-01-13 | Motor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203761739U true CN203761739U (en) | 2014-08-06 |
Family
ID=51256964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420017822.6U Withdrawn - After Issue CN203761739U (en) | 2014-01-13 | 2014-01-13 | Motor controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203761739U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780736A (en) * | 2014-01-13 | 2015-07-15 | 潘晨曦 | Motor controller |
| WO2023197733A1 (en) * | 2022-04-15 | 2023-10-19 | 苏州旭创科技有限公司 | Electronic product |
-
2014
- 2014-01-13 CN CN201420017822.6U patent/CN203761739U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780736A (en) * | 2014-01-13 | 2015-07-15 | 潘晨曦 | Motor controller |
| CN104780736B (en) * | 2014-01-13 | 2018-05-25 | 潘晨曦 | Electric machine controller |
| WO2023197733A1 (en) * | 2022-04-15 | 2023-10-19 | 苏州旭创科技有限公司 | Electronic product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20180525 |
|
| AV01 | Patent right actively abandoned |