CN204518294U - Water cooled electrodynamic vehicle controller and electric motor car - Google Patents

Water cooled electrodynamic vehicle controller and electric motor car Download PDF

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Publication number
CN204518294U
CN204518294U CN201520148412.XU CN201520148412U CN204518294U CN 204518294 U CN204518294 U CN 204518294U CN 201520148412 U CN201520148412 U CN 201520148412U CN 204518294 U CN204518294 U CN 204518294U
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CN
China
Prior art keywords
cavity
circuit board
water cooled
housing
vehicle controller
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Expired - Fee Related
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CN201520148412.XU
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Chinese (zh)
Inventor
曾奇方
柏松
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Guangdong Gobao Electronic Technology Co Ltd
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Guangdong Gobao Electronic Technology Co Ltd
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Priority to CN201520148412.XU priority Critical patent/CN204518294U/en
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  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The utility model relates to the technical field of electric motor car, the water cooled electrodynamic vehicle controller provided and electric motor car, comprise housing and be arranged on the circuit board in described housing, this circuit board is provided with some electric components, wherein, described housing has an inner chamber, and the described inner chamber of described housing is divided into the first cavity and the second cavity for built-in cooling fluid, described first cavity and described second cavity separate and be arranged side by side; Described circuit board is installed in described first cavity, and between the bottom surface of described circuit board and described first cavity, interval is arranged, and is provided with the insulating heat-conductive oil for being passed to by the heat of described circuit board on described housing in described first cavity.Be compared with the prior art, the utility model effectively improves water cooled electrodynamic vehicle controller quality, extends useful life.The electric motor car that the utility model provides, work more stable, fail safe is higher.

Description

Water cooled electrodynamic vehicle controller and electric motor car
Technical field
The utility model relates to the technical field of electric motor car, especially relates to a kind of water cooled electrodynamic vehicle controller and electric motor car.
Background technology
One of controller for electric vehicle four large core components belonging to electric motor car, the quality of controller for electric vehicle quality affects useful life and the performance of electric motor car, and the device hardware circuit design quality controlled processed of controller for electric vehicle, software algorithm, the impact of the factors such as radiator structure, in electric motor car development for many years, hardware circuit design between each controller producer, the gap of software algorithm aspect is little, and electric motor car controller under long limit load mostly was cause thermal damage, so the design of controller in radiator structure seems further important, excellent heat sink conception can enable controller travel for a long time under the operating mode that high strength is severe, effectively can extend controller useful life.
At present, the metal-oxide-semiconductor that existing controller comprises a heat-dissipating casing, is arranged on the controller PCB plate in this heat-dissipating casing and is arranged on this controller PCB plate, in controller radiator structure, all carry out effective radiator structure to main power device metal-oxide-semiconductor to improve, main modified node method is divided into two kinds, wherein a kind of is be attached to by metal-oxide-semiconductor on aluminium base fin that controller is upper and lower fastening structure, and another kind is attached to by metal-oxide-semiconductor inside heat radiation wall that controller is annular seal space structure.In two kinds of structures above, because the hardware arrangement of controller PCB plate for fear of necessity designs, power capacity is all positioned at PCB middle part substantially, make all power devices all can not be close to heat-dissipating casing to carry out dispelling the heat and natural heat dissipation can only being carried out, radiating efficiency is extremely low, like this, existing controller architecture only can dispel the heat to metal-oxide-semiconductor, and cannot the power capacity being positioned at controller PCB plate middle part be dispelled the heat, when controller works in long-time pole heavy duty, capacitance temperature sharply rises and heat is difficult to distribute, make temperature very easily exceed normal working temperature scope and cross cause thermal damage, thus cause controller function to lose efficacy.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of water cooled electrodynamic vehicle controller and electric motor car, be intended to solve in prior art, in existing controller, the capacitor being arranged on circuit board surface middle position can only pass through natural heat dissipation, radiating efficiency is extremely low, easy cross cause thermal damage defect.
The water cooled electrodynamic vehicle controller that the utility model provides, comprise housing and be arranged on the circuit board in described housing, this circuit board is provided with some electric components, wherein, described housing has an inner chamber, the described inner chamber of described housing is divided into the first cavity and the second cavity for built-in cooling fluid, described first cavity and described second cavity separate and be arranged side by side; Described circuit board is installed in described first cavity, and between the bottom surface of described circuit board and described first cavity, interval is arranged, and is provided with the insulating heat-conductive oil for being passed to by the heat of described circuit board on described housing in described first cavity.
Further, described insulating heat-conductive oil at least covers the bottom surface of described circuit board.
Further, the whole described circuit board of described insulating heat-conductive oil parcel.
Further, some described electric components comprise several switching tubes be arranged on described circuit board, on described circuit board, a side surface of switching tube described in several is all connected in described first cavity on the inwall of described second cavity side, and switching tube described in several side by side and alternate setting.
Further, described insulating heat-conductive oil is transformer oil.
Further, the end face of described housing offers in the position that described second cavity is corresponding and is evaporated to gaseous state cooling fluid at least one loss mouth to outside for loss.
Further, the described loss mouth place of described housing is connected with the waterproof and breathable plug for this loss mouth of shutoff.
Further, described housing comprises the first openend and second openend relative with described first openend, described first openend and described second openend all with described inner space, described water cooled electrodynamic vehicle controller also comprises the first cover plate being connected to described first open end and the second cover plate being connected to described second open end, and described housing, described first cover plate and described second cover plate enclose and form described first cavity and described second cavity.
Further, between described first cover plate and described housing, be provided with first waterproof pad for shutoff gap, between described second cover plate and described housing, be provided with second waterproof pad for shutoff gap.
The electric motor car that the utility model provides, comprises vehicle frame, and wherein, also comprise above-mentioned water cooled electrodynamic vehicle controller, described water cooled electrodynamic vehicle controller is fixed on described vehicle frame.
Be compared with the prior art, the water cooled electrodynamic vehicle controller that the utility model provides, adopt and the first separate cavity and the second cavity are set in housing, in the first cavity, circuit board is installed and is provided with insulating heat-conductive oil in this first cavity, by this insulating heat-conductive oil, the heat of circuit board is passed on housing, cooling fluid is built-in with in the second cavity, like this, the heat of the electric component on circuit board and this circuit board can be passed on housing well by insulating heat-conductive oil and effectively dispel the heat, especially the capacitor being positioned at circuit board middle position can be dispelled the heat preferably, increase the region of heat radiation and improve the efficiency of heat radiation, make water cooled electrodynamic vehicle controller can under electric motor car limit load long-play and not damaging, effectively improve water cooled electrodynamic vehicle controller quality, extend the useful life of water cooled electrodynamic vehicle controller.
Be compared with the prior art, the electric motor car that the utility model provides, adopt water cooled electrodynamic vehicle controller, the work of electric motor car is more stable, and fail safe is higher.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of the water cooled electrodynamic vehicle controller that the utility model embodiment provides;
Fig. 2 is the schematic perspective view of the water cooled electrodynamic vehicle controller that the utility model embodiment provides;
Fig. 3 is water cooled electrodynamic vehicle controller that the utility model embodiment provides schematic perspective view when saving the second cover plate;
Fig. 4 is the simple structure schematic diagram of the water cooled electrodynamic vehicle controller that the utility model embodiment provides.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with concrete accompanying drawing, realization of the present utility model is described in detail.
As shown in Figures 1 to 4, be a preferred embodiment that the utility model provides.
The water cooled electrodynamic vehicle controller 100 that the present embodiment provides, comprise housing 1 and be arranged on the circuit board 2 in housing 1, this circuit board 2 is provided with some electric components 3, wherein, housing 1 has an inner chamber 1a, the inner chamber 1a of housing 1 be divided into the first cavity 11 and for the second cavity 12, first cavity 11 of built-in cooling fluid 5 and the second cavity 12 separate and be arranged side by side.Circuit board 2 is fixedly mounted in the first cavity 11, is separated with a segment distance between circuit board 2 and the bottom surface of the first cavity 11, the inwall in the first cavity 11 and the insulating heat-conductive oil 4 be filled with between circuit board 2 for being passed to by the heat of circuit board 2 on housing 1.
Above-mentioned water cooled electrodynamic vehicle controller 100, adopt and the first separate cavity 11 and the second cavity 12 is set in housing 1, in the first cavity 11, circuit board 2 is installed and is provided with insulating heat-conductive oil 4 in this first cavity 11, by this insulating heat-conductive oil 4, the heat of circuit board 2 is passed on housing 1, cooling fluid 5 is built-in with in the second cavity 12, like this, the heat of the electric component 3 on circuit board 2 and this circuit board 2 can be passed on housing 1 well by insulating heat-conductive oil 4 and effectively dispel the heat, especially the capacitor 32 being positioned at circuit board 2 middle position can be dispelled the heat preferably, increase the region of heat radiation and improve the efficiency of heat radiation, make water cooled electrodynamic vehicle controller 100 can under electric motor car limit load long-play and not damaging, effectively improve water cooled electrodynamic vehicle controller 100 quality, extend the useful life of water cooled electrodynamic vehicle controller 100.
For sake of convenience, hereinafter alleged " left side " " right side " " on " D score to consistent, but do not play restriction effect to structure of the present utility model with left and right, the upper and lower of accompanying drawing itself.
In the present embodiment, water cooled electrodynamic vehicle controller 100, comprise a housing 1, be connected to the first cover plate 6 and the second cover plate 7 of these housing 1 both sides, this housing 1 internal fixtion is provided with circuit board 2.
Housing 1, adopts the higher metal material of heat conduction efficiency to make, preferred aluminum material.See Fig. 1 to Fig. 3, housing 1 is roughly quadrangle box shape, has an inner chamber 1a in it, and housing 1 comprises the first openend 13 and the second openend 14 be communicated with this inner chamber 1a.The inner chamber 1a of this housing 1 is divided into the first cavity 11 and the second cavity 12 for mounting circuit boards 2 by a dividing plate 15, this dividing plate 15 can be made of one piece with housing 1, first cavity 11 and the second cavity 12 separate, and the first cavity 11 and the second cavity 12 are arranged side by side.
First cover plate 6 and the second cover plate 7, all adopting the higher metal material of conduction efficiency to make, can be aluminum material.See Fig. 1 and Fig. 2, the first cover plate 6 is front shroud, and position corresponding with the first cavity 11 on it offers cable-through hole and jiont treatment hole.First cover plate 6 is fixedly connected on the first openend 13 place of housing 1 by screw, second cover plate 7 is fixedly connected on the second openend 14 place of housing 1 by screw, like this, after the first cover plate 6 is fixedly connected with housing 1 respectively with the second cover plate 7, between three, enclose the first cavity 11 and the second cavity 12 of formation.
Circuit board 2, for PCB 2, it installs in the first cavity 11, see Fig. 1, Fig. 3 and Fig. 4, inwall relative with this dividing plate 15 in dividing plate 15 with the first cavity 11 is respectively arranged with fixed card slot 15a, this fixed card slot 15a is formed by the inner wall depression of dividing plate 15 and the first cavity 11 respectively, and the both sides of the edge of circuit board 2 to be embedded in corresponding fixed card slot 15a and fixing respectively.Circuit board 2, roughly in horizontal positioned, it parallels with the bottom surface of the first cavity 11, is spaced a distance to avoid circuit board 2 to leak electricity between circuit board 2 and the bottom surface of the first cavity 11.Be electrically connected with some electric components 3 on the circuit board 2, this electric component 3 comprises switching tube 31, capacitor 32 and other electronic devices (scheming not shown), switching tube 31 (it should be noted that for switch power metal-oxide-semiconductor, above-mentioned electric component 3 is electric component conventional in existing controller for electric vehicle, its function is the same with existing, therefore no longer repeats).Grafting is on the circuit board 2 on the edge of dividing plate 15 side side by side respectively by its pin for several switching tubes 31, and alternate setting between several switching tubes 31, capacitor 32 and other electronic devices are distributed in the central part of circuit board 2.In the present embodiment, on circuit board 2, a side surface of several switching tubes 31 is all connected on the surface of dividing plate 15, like this, heat directly can be directed in housing 1 and the second cavity 12 by dividing plate 15 when its work by switching tube 31, switching tube 31 can be dispelled the heat efficiently, to ensure the stability that switching tube 31 works.
Insulating heat-conductive oil 4, for the heat of circuit board 2 being passed on housing 1 to dispel the heat to circuit board 2 and each electric component 3 (switching tube 31, capacitor 32 and other electronic devices) be arranged on this circuit board 2, see Fig. 4, a certain amount of insulating heat-conductive oil 4 is packaged with in the first cavity 11, this insulating heat-conductive oil 4 is filled between the sidewall of circuit board 2 and the inwall of the first cavity 11, and directly contacts with circuit board 2 and shell all the time.Because insulating heat-conductive oil 4 heat transfer efficiencys are good, to circuit board 2 insulation protection, electric leakage can not only be avoided; and rapid heat dissipation, thermal stability is fine, under the condition of almost normal pressure; greatly can reduce the temperature on circuit board 2 and electric component 3 surface, improve stability and the reliability of work.Insulating heat-conductive oil 4 can be synthesis type conduction oil or the mineral type conduction oil with insulating capacity, and preferred transformer oil is encapsulated in the first cavity 11 by the first cover plate 6 and the second cover plate 7.In the present embodiment, this insulating heat-conductive oil 4 is in flow-like, insulating heat-conductive oil 4 is provided with between circuit board 2 and the bottom surface of the first cavity 11, the bottom surface (sidewall of all right portion envelops circuit board 2) of these insulating heat-conductive oil 4 complete covering boards 2, like this, when controller works, because insulating heat-conductive oil 4 contacts with circuit board 2 and housing 1, the heat of circuit board 2 and each electric component 3 (especially capacitor 32) can pass to insulating heat-conductive oil 4 by circuit board 2, be passed on housing 1 by insulating heat-conductive oil 4 again, and by housing 1 to external world air dispel the heat.This kind of heat conduction cooling method, to compare in original controller circuit board 2 and electric component 3 by means of only the mode of natural heat dissipation in confined space, radiating efficiency is highly improved, and can meet the electric component 3 to being arranged on circuit board 2 middle position, especially the radiating requirements of capacitor 32.Like this, effectively switch tube 31 can not only dispel the heat, also can the capacitor 32 being arranged on circuit board 2 middle body effectively be dispelled the heat simultaneously, thus effectively extend the useful life of controller.
In order to dispel the heat to circuit board 2 and each electric component 3 better, the liquid level of insulating heat-conductive oil 4 in the first cavity 11 is higher than the surface of circuit board 2, by the immersion of whole circuit board 2 and electric component 3 part (or submergence all electric component 3), like this, at insulating heat-conductive oil 4 parcel whole circuit boards 2 and after contacting with electric component 3, electric component 3 can directly transfer heat to insulating heat-conductive oil 4, heat is also passed in insulating heat-conductive oil 4 by circuit board 2 simultaneously, be passed on housing 1 by insulating heat-conductive oil 4 again, and by housing 1 to external world air dispel the heat.
In addition, above-mentioned insulating heat-conductive oil 4 also just can adopt the thermally conductive grease of solid-state shape (thermally conductive grease can be of the prior art all have insulation and the Heat sink grease of heat conductivility), by coating mode by insulating heat-conductive oil 4 be coated be located at circuit board 2 surface (can be its end face and, or bottom surface, also can be whole outer surface), and at least between a side surface and the inwall of housing 1, be coated with this insulating heat-conductive oil 4, like this, by coating insulating heat-conductive oil 4, the heat of circuit board 2 and each electric component 3 (especially capacitor 32) is passed to insulating heat-conductive oil 4, be passed on housing 1 by insulating heat-conductive oil 4 again, finally by this housing 1 to external world air dispel the heat.
Second cavity 12 internal memory contain cooling fluid 5, cooling fluid 5 can be water, oil or the liquid with suitable specific heat capacity.See Fig. 1 and Fig. 4, in order to improve the water resistance of water cooled electrodynamic vehicle controller 100, first waterproof pad 81 for shutoff gap is provided with between the first cover plate 6 and housing 1, second waterproof pad 82 for shutoff gap is provided with between second cover plate 7 and housing 1, first waterproof pad 81 and the second waterproof pad 82 all adopt rubber to make, its shape is square (can certainly adopt shaped as frame), size at least can cover the first openend 13 and the second openend 14, when the first cover plate 6 is fixedly connected with housing 1 with the second cover plate 7, first waterproof pad 81 is pressed abd fixed between the first cover plate 6 and housing 1, second waterproof pad 82 is pressed abd fixed between the second cover plate 7 and housing 1, effectively can avoid the leakage of the insulating heat-conductive oil 4 of cooling fluid 5 in the second cavity 12 and the first cavity 11, in addition, waterproof effect to external world can also be played, outside aqueous vapor is avoided to enter the first cavity 11 to damage circuit board 2 and electric component 3.It should be noted that, when insulating heat-conductive oil 4 adopts in solid shape heat-conducting medium, can only adopt the first waterproof pad 81 and the second waterproof pad 82 to carry out water-tight respectively at two openends of the second cavity 12, spill to avoid the cooling fluid 5 of the second cavity 12.
In the present embodiment, the cooling fluid 5 in the second cavity 12 is not full of whole second cavity 12, as can be seen from Figure 4, namely should have certain headspace between the liquid level of cooling fluid 5 and the end face of the second cavity 12.As can be seen from Figure 3, the end face of housing 1 offers at least one the loss mouth 16 being evaporated to gaseous state cooling fluid 5 to housing 1 outside for loss in the position of the second cavity 12 correspondence.When water cooled electrodynamic vehicle controller works, circuit board 2 in first cavity 11 and each electric component 3 produce heat, wherein a part of heat is directly distributed in outside atmosphere by housing 1 through insulation conduction oil 4, the heat of another part is then passed in the second cavity 12 by dividing plate 15, and cooled liquid 5 absorbs, after cooling fluid 5 absorbs heat, temperature raises, part cooling fluid 5 is heated and is evaporated to gaseous state, air pressure in second cavity 12 raises, gaseous state cooling fluid 5 in second cavity 12 passes through loss mouth 16 loss in the outside atmosphere of housing 1, to guarantee that the air pressure of air pressure in the second cavity 12 and housing 1 outside keeps balancing.
See Fig. 1 to Fig. 3, each loss mouth 16 place of housing 1 is connected with a waterproof and breathable plug 9 for this loss mouth 16 of shutoff, and waterproof and breathable plug 9 can be all waterproof and breathable plugs 9 that can play waterproof and airing function in prior art.Waterproof and breathable plug 9 has effect gas in the second cavity 12 being appeared outside housing 1 loss, and the liquid of the outside outflow of the cooling fluid 5 of housing 1 and housing 1 outside can be avoided to enter in the second cavity 12.The loss mouth 16 of waterproof and breathable plug 9 shutoff housing 1 under normal circumstances, waterproof and breathable plug 9 has an elastic opening (scheming not shown), during normal pressure, this elastic opening is closed, second cavity 12 is sealing state, cooling fluid 5 in it can not flow out via loss mouth 16, and after the second cavity 12 internal gas pressure acquires a certain degree, the elastic opening pressurized of waterproof and breathable plug 9 struts, and the gas in the second cavity 12 is discharged housing 1 outside, to reach step-down object.
The electric motor car that the utility model provides, comprises vehicle frame (scheming not shown), and wherein, also comprise above-mentioned water cooled electrodynamic vehicle controller 100, water cooled electrodynamic vehicle controller 100 is fixed on vehicle frame.
The electric motor car that the utility model provides, adopt water cooled electrodynamic vehicle controller 100, the work of electric motor car is more stable, and fail safe is higher.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace or improvement etc., all should be included within protection range of the present utility model.

Claims (10)

1. a water cooled electrodynamic vehicle controller, comprise housing and be arranged on the circuit board in described housing, this circuit board is provided with some electric components, it is characterized in that, described housing has an inner chamber, the described inner chamber of described housing is divided into the first cavity and the second cavity for built-in cooling fluid, described first cavity and described second cavity separate and be arranged side by side; Described circuit board is installed in described first cavity, and between the bottom surface of described circuit board and described first cavity, interval is arranged, and is provided with the insulating heat-conductive oil for being passed to by the heat of described circuit board on described housing in described first cavity.
2. water cooled electrodynamic vehicle controller according to claim 1, is characterized in that, described insulating heat-conductive oil at least covers the bottom surface of described circuit board.
3. water cooled electrodynamic vehicle controller according to claim 2, is characterized in that, the whole described circuit board of described insulating heat-conductive oil parcel.
4. water cooled electrodynamic vehicle controller according to claim 1, it is characterized in that, some described electric components comprise several switching tubes be arranged on described circuit board, on described circuit board, a side surface of switching tube described in several is all connected in described first cavity on the inwall of described second cavity side, and switching tube described in several side by side and alternate setting.
5. water cooled electrodynamic vehicle controller according to any one of claim 1 to 4, is characterized in that, described insulating heat-conductive oil is transformer oil.
6. water cooled electrodynamic vehicle controller according to any one of claim 1 to 4, is characterized in that, the end face of described housing offers in the position that described second cavity is corresponding and is evaporated to gaseous state cooling fluid at least one loss mouth to outside for loss.
7. water cooled electrodynamic vehicle controller according to claim 6, is characterized in that, the described loss mouth place of described housing is connected with the waterproof and breathable plug for this loss mouth of shutoff.
8. water cooled electrodynamic vehicle controller according to any one of claim 1 to 4, it is characterized in that, described housing comprises the first openend and second openend relative with described first openend, described first openend and described second openend all with described inner space, described water cooled electrodynamic vehicle controller also comprises the first cover plate being connected to described first open end and the second cover plate being connected to described second open end, and described housing, described first cover plate and described second cover plate enclose and form described first cavity and described second cavity.
9. water cooled electrodynamic vehicle controller according to claim 8, it is characterized in that, be provided with first waterproof pad for shutoff gap between described first cover plate and described housing, between described second cover plate and described housing, be provided with second waterproof pad for shutoff gap.
10. an electric motor car, comprises vehicle frame, it is characterized in that: also comprise the water cooled electrodynamic vehicle controller according to any one of claim 1-9, and described water cooled electrodynamic vehicle controller is fixed on described vehicle frame.
CN201520148412.XU 2015-03-16 2015-03-16 Water cooled electrodynamic vehicle controller and electric motor car Expired - Fee Related CN204518294U (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105620309A (en) * 2016-01-28 2016-06-01 广州市裕德电子科技有限公司 Controller for electric vehicle
CN105711439A (en) * 2016-01-28 2016-06-29 广州市裕德电子科技有限公司 Electric motorcycle
CN106358407A (en) * 2016-12-02 2017-01-25 极导电子科技无锡有限公司 Electric vehicle controller
CN108173416A (en) * 2018-01-04 2018-06-15 深圳威迈斯电源有限公司 The mounting structure and installation method of plug-in component switch pipe
CN110177438A (en) * 2019-04-28 2019-08-27 曾志刚 Controller for electric vehicle and detection method
CN114449795A (en) * 2020-11-05 2022-05-06 华为技术有限公司 Electronic equipment, on-vehicle cooling system and vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105620309A (en) * 2016-01-28 2016-06-01 广州市裕德电子科技有限公司 Controller for electric vehicle
CN105711439A (en) * 2016-01-28 2016-06-29 广州市裕德电子科技有限公司 Electric motorcycle
CN106358407A (en) * 2016-12-02 2017-01-25 极导电子科技无锡有限公司 Electric vehicle controller
CN108173416A (en) * 2018-01-04 2018-06-15 深圳威迈斯电源有限公司 The mounting structure and installation method of plug-in component switch pipe
CN110177438A (en) * 2019-04-28 2019-08-27 曾志刚 Controller for electric vehicle and detection method
CN114449795A (en) * 2020-11-05 2022-05-06 华为技术有限公司 Electronic equipment, on-vehicle cooling system and vehicle

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