Electric drive controller and new energy vehicle

Abstract

The utility model relates to the technical field of new energy vehicles, in particular to an electric drive controller and a new energy vehicle, the electric drive controller comprises a shell and a function module, the shell comprises a first outer shell and a partition plate, the first outer shell is arranged on one side of the partition plate and forms a first cavity in a surrounding mode, and a main flow channel and at least two branch flow channels are arranged in the partition plate; one end of the main flow channel is communicated with a liquid outlet of the radiator, the other end of the main flow channel is communicated with one ends of the at least two branch flow channels at the same time, the other ends of the at least two branch flow channels are communicated with a liquid inlet of the radiator, and the function module comprises a control module, an auxiliary drive power module and a main drive power module which are located in the first cavity; the control module and the auxiliary drive power module are sequentially arranged above the main flow channel in the flow direction of the cooling liquid, and the main drive power module is located above the at least two branch flow channels. Position setting is carried out by combining the flowing path of the cooling liquid and the heating value of the functional module, and the heat dissipation efficiency of the electric drive controller on the functional module is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy automobile technical field especially, and it relates to electric drive controller and new energy car. BACKGROUND

[0002] With the transformation of global energy structure and the improvement of environmental protection consciousness, new energy vehicles have become an important direction of the development of automobile industry. As the core component of new energy vehicles, electric drive controller plays a key role in vehicle power output, energy recovery and driving mode switching. Electric drive controller is mainly composed of power module, control unit and communication system, and its core functions include electric energy conversion, power regulation and energy recovery. However, with the continuous improvement of the power density and performance requirements of new energy vehicles on electric drive controller, the heat dissipation problem has become a technical bottleneck restricting its development.

[0003] In high-power working environment, the power module and control unit of electric drive controller will generate a large amount of heat. If the heat is not dissipated in time, it may lead to performance degradation of the device, reduction of energy conversion efficiency, and even cause short circuit or fire accidents.

[0004] To solve the above problems, the existing technology sets a cooling flow channel in the electric drive controller shell, and uses the circulation of cooling liquid in the cooling flow channel to take away the heat of the heating components in the electric drive controller shell. However, the design of the existing cooling flow channel does not take into account the different heat generation of each functional device in the electric drive controller shell, resulting in that part of the functional devices not only do not get cooling, but their own temperature rises under the action of the cooling liquid.

[0005] Therefore, there is an urgent need for electric drive controller to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at: provide electric drive controller and new energy car, to solve the problem that the design of the cooling flow channel of electric drive controller in the prior art does not take into account the heat generation of each functional device in the electric drive controller shell, resulting in that part of the functional devices not only do not get cooling, but their own temperature rises under the action of the cooling liquid.

[0007] On the one hand, the utility model provides electric drive controller, and the electric drive controller comprises:

[0008] The shell comprises a first shell and a partition plate, the first shell is arranged on one side of the partition plate and surrounds the first cavity with the partition plate, the main flow channel and at least two branch flow channels are arranged in the partition plate, one end of the main flow channel is used for communicating with the liquid outlet of the radiator, the other end of the main flow channel simultaneously communicates with one end of at least two branch flow channels, the other end of at least two branch flow channels is used for communicating with the liquid inlet of the radiator, and at least two branch flow channels are arranged in sequence and are spaced apart.

[0009] The functional module comprises a control module, an auxiliary drive power module and a main drive power module located on the partition plate in the first cavity, the control module and the auxiliary drive power module are sequentially arranged above the main flow channel along the flow direction of the cooling liquid, and the main drive power module is located above at least two branch flow channels.

[0010] As the preferred technical solution of the electric drive controller, one side wall of the partition plate is provided with a liquid inlet connector and a liquid outlet connector in a first direction, one end of the main flow channel is communicated with the liquid inlet connector, the other end of at least two branch flow channels is communicated with the liquid outlet connector, the branch flow channels extend in a second direction and are arranged in the first direction, and the first direction and the second direction are perpendicular and both are located in the plane of the partition plate.

[0011] As the preferred technical solution of the electric drive controller, the shell further comprises a second shell, the second shell is arranged on the side of the partition plate away from the first shell, and the second shell and the partition plate surround to form a second cavity.

[0012] The functional module further comprises a DCDC controller, the DCDC controller is arranged on the partition plate in the second cavity and opposite to the main flow channel.

[0013] As the preferred technical solution of the electric drive controller, the DCDC controller is opposite to the control module.

[0014] As the preferred technical solution of the electric drive controller, the first shell is provided with a first exhaust hole communicated with the first cavity, and the electric drive controller further comprises a first exhaust fan arranged in the first exhaust hole.

[0015] And / or the second shell is provided with a second exhaust hole communicated with the second cavity, and the electric drive controller further comprises a second exhaust fan arranged in the second exhaust hole.

[0016] As the preferred technical solution of the electric drive controller, the control module comprises a control circuit board and a capacitor arranged on one side of the control circuit board, and the capacitor is used for abutting against the partition plate.

[0017] As the preferred technical solution of the electric drive controller, the functional module further comprises an electronic fuse, the electronic fuse is arranged in the first cavity and opposite to the main flow channel between the control module and the auxiliary drive power module.

[0018] As the preferred technical solution of the electric drive controller, it further comprises a fuse box, and the fuse box is arranged on the outer peripheral wall of the shell.

[0019] As a preferred technical scheme of the electric drive controller, the shell is an integrally casted forming piece.

[0020] In another aspect, the utility model provides new energy car, including the electric drive controller of any scheme in above.

[0021] The utility model discloses beneficial effects are:

[0022] The utility model provides electric drive controller and new energy car, this electric drive controller includes shell and function module, the shell includes first shell and baffle, first shell sets up at the one side of baffle and is surrounded with baffle and sets up first cavity, baffle is in setting main stream channel and at least two branch stream channel, one end of main stream channel is used for with the liquid outlet of radiator intercommunication, the other end of main stream channel is communicated with at least two branch stream channel one end simultaneously, and the other end of at least two branch stream channel is used for with the liquid inlet of radiator intercommunication, and at least two branch stream channels are sequentially spaced apart;Function module includes the control module on the baffle in first cavity, auxiliary drive power module and main drive power module, and control module and auxiliary drive power module are sequentially arranged in the upper of main stream channel along the flow direction of cooling liquid, and main drive power module is located in the upper of at least two branch stream channels.When electric drive controller works, the heat generated by control module, auxiliary drive power module and main drive power module increases sequentially in the same time, so cooling liquid flows through control module, auxiliary drive power module and main drive power module sequentially, since the heat generated by control module is less, so cooling liquid can still heat dissipation auxiliary drive power module after absorbing the heat generated by control module, and the heat generated by auxiliary drive power module is lower than main drive power module, so cooling liquid can still heat dissipation main drive power module after absorbing the heat generated by auxiliary drive power module, and simultaneously, main drive power module is opposite to multiple branch stream channels simultaneously, further improves the heat dissipation effect of main drive power module.The electric drive controller combines the flow path of cooling liquid and the heat generated by each function module and sets position, and at least two branch stream channels are arranged below the main drive power module with the largest heat generation, further improve the heat dissipation efficiency of the function module of electric drive controller. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is structure diagram of electric drive controller in the utility model embodiment Figure 1 ;

[0024] Figure 2 It is sectional view of baffle in the utility model embodiment

[0025] Figure 3 It is structure diagram of electric drive controller in the utility model embodiment Figure 2 .

[0026] In the drawing:

[0027] Y, first direction, X, second direction

[0028] 11, first housing; 12, partition; 121, main flow channel; 122, branch flow channel; 123, liquid inlet connector; 124, liquid outlet connector; 13, second housing;

[0029] 21, control module; 211, circuit board; 212, capacitor; 22, auxiliary drive power module; 23, main drive power module; 24, DCDC controller; 25, electronic fuse;

[0030] 3, fuse box. DETAILED DESCRIPTION

[0031] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the "above", "above" and "above" of the first feature on the second feature include the vertical height of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature on the second feature include the vertical height of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0033] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] like Figures 1-3 As shown, this embodiment provides an electric drive controller, which includes a housing and functional modules. The housing includes a first outer shell 11 and a partition 12. The first outer shell 11 is disposed on one side of the partition 12 and together with the partition 12 forms a first cavity. The partition 12 is provided with a main flow channel 121 and at least two branch flow channels 122. One end of the main flow channel 121 is used to communicate with the outlet of the radiator, and the other end of the main flow channel 121 is simultaneously connected to one end of the at least two branch flow channels 122. The other ends of the at least two branch flow channels 122 are used to communicate with the inlet of the radiator. The at least two branch flow channels 122 are arranged sequentially at intervals. The functional modules include a control module 21, an auxiliary drive power module 22, and a main drive power module 23 located on the partition 12 in the first cavity. The control module 21 and the auxiliary drive power module 22 are arranged sequentially above the main flow channel 121 along the flow direction of the coolant, and the main drive power module 23 is located above the at least two branch flow channels 122. When the electric drive controller is working, the heat generated by the control module 21, auxiliary drive power module 22, and main drive power module 23 increases sequentially within the same time frame. Therefore, the coolant flows sequentially through the control module 21, auxiliary drive power module 22, and main drive power module 23. Since the control module 21 generates less heat, the coolant, after absorbing the heat from the control module 21, can still dissipate heat from the auxiliary drive power module 22. The auxiliary drive power module 22 generates less heat than the main drive power module 23, so the coolant, after absorbing the heat from the auxiliary drive power module 22, can still dissipate heat from the main drive power module 23. Simultaneously, the main drive power module 23 is opposite multiple branch channels 122, further improving the heat dissipation effect on the main drive power module 23. This electric drive controller is positioned based on the coolant flow path and the heat generation of each functional module. Furthermore, at least two branch channels 122 are located below the main drive power module 23, which generates the most heat, further improving the heat dissipation efficiency of the electric drive controller for the functional modules.

[0036] Optionally, the coolant between the main flow channel 121, the branch flow channel 122, and the radiator is circulated by a liquid pump.

[0037] Optionally, the side wall of the partition plate 12 is provided with a liquid inlet connector 123 and a liquid outlet connector 124 in the first direction Y, one end of the main flow channel 121 is communicated with the liquid inlet connector 123, and the other end of the at least two branch flow channels 122 is communicated with the liquid outlet connector 124, the branch flow channels 122 extend in the second direction X and are arranged in the first direction Y, and the first direction Y and the second direction X are perpendicular and both are in the plane where the partition plate 12 is located. In this embodiment, the liquid inlet connector 123 and the liquid outlet connector 124 are arranged on one side wall of the partition plate 12, which facilitates the connection of the liquid inlet connector 123 and the liquid outlet connector 124 with the radiator and the liquid pump. In addition, this arrangement makes the main flow channel 121 and the branch flow channel 122 form a U shape, which improves the flow path of the cooling liquid and improves the heat dissipation effect of the cooling liquid on the functional module compared with the linear flow channel.

[0038] Optionally, the shell further comprises a second shell 13 arranged on the side of the partition plate 12 away from the first shell 11, and the second shell 13 and the partition plate 12 form a second cavity; the functional module further comprises a DCDC controller 24 arranged on the partition plate 12 in the second cavity and opposite to the main flow channel 121. In this embodiment, since the DCDC controller 24 generates less heat, the DCDC controller 24 is suitable to be arranged on the main flow channel 121, but the position opposite to the main flow channel 121 in the first cavity has been occupied by the control module 21 and the auxiliary drive power module 22, so the second shell 13 is arranged on the side of the partition plate 12 away from the first shell 11, and the DCDC controller 24 is arranged on the partition plate 12 in the second cavity and opposite to the main flow channel 121 to achieve heat dissipation of the DCDC controller 24.

[0039] For the specific position of the DCDC controller 24, the DCDC controller 24 is opposite to the control module 21. In this embodiment, since the DCDC controller 24 generates less heat, and the cooling liquid has the strongest heat absorption capacity near the liquid inlet connector 123 of the main flow channel 121, the DCDC controller 24 is arranged near the liquid inlet connector 123 of the main flow channel 121.

[0040] Optionally, the first shell 11 is provided with a first exhaust hole communicating with the first cavity, and the electric drive controller further comprises a first exhaust fan arranged in the first exhaust hole; in this embodiment, the control module 21, the auxiliary drive power module 22 and the main drive power module 23 are arranged in the first cavity, and when the electric drive controller works, part of the heat generated by the control module 21, the auxiliary drive power module 22 and the main drive power module 23 is absorbed by the cooling liquid, and the other part enters the first cavity. In order to avoid the accumulation of a large amount of heat in the first cavity, a first exhaust fan is arranged to exhaust the heat in the first cavity.

[0041] And / or the second shell 13 is provided with a second exhaust hole communicating with the second cavity, and the electric drive controller further comprises a second exhaust fan arranged in the second exhaust hole.

[0042] Optionally, the control module 21 comprises a control circuit board 211 and a capacitor 212 arranged on one side of the control circuit board 211, and the capacitor 212 is arranged to abut against the partition plate 12. In the embodiment, since the capacitor 212 on the control module 21 mainly generates heat, the capacitor 212 is arranged to abut against the partition plate 12, so that the heat generated by the capacitor 212 is conveniently transmitted to the cooling liquid in the main flow channel 121 through the partition plate 12.

[0043] Optionally, the functional module further comprises an electronic fuse 25 arranged in the first cavity and arranged opposite to the main flow channel 121 between the control module 21 and the auxiliary drive power module 22. In the embodiment, the electronic fuse 25 is used for overload protection of the functional module, and the electronic fuse 25 has a small size, so the electronic fuse 25 is arranged opposite to the main flow channel 121 between the control module 21 and the auxiliary drive power module 22, so that the cooling liquid in the main flow channel 121 is used for heat dissipation of the electronic fuse 25.

[0044] Optionally, the electric drive controller further comprises a fuse box 3 arranged on the outer peripheral wall of the shell. In the embodiment, the fuse box 3 is arranged outside the first cavity and the second cavity, which can save the space in the first cavity and the second cavity, and facilitate replacement of the fuses in the fuse box 3 when the fuses in the fuse box 3 are fused.

[0045] Optionally, the shell is an integral cast molding. In the embodiment, the arrangement can improve the manufacturing efficiency of the shell, and can also avoid the problem of leakage of the cooling liquid at the connection between the main flow channel 121 and the branch flow channel 122.

[0046] The embodiment also provides a new energy vehicle comprising the electric drive controller in the above-mentioned scheme.

[0047] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. An electrical drive controller, characterized by, The application relates to a shell and a functional module. The shell comprises a first shell (11) and a partition plate (12), the first shell (11) is arranged on one side of the partition plate (12) and surrounds the partition plate (12) to form a first cavity, a main flow channel (121) and at least two branch flow channels (122) are arranged in the partition plate (12), one end of the main flow channel (121) is used for communicating with a liquid outlet of a radiator, the other end of the main flow channel (121) simultaneously communicates with one end of the at least two branch flow channels (122), and the other ends of the at least two branch flow channels (122) are used for communicating with liquid inlets of the radiator, and the at least two branch flow channels (122) are arranged in sequence and at intervals. The functional module comprises a control module (21), an auxiliary drive power module (22) and a main drive power module (23) arranged on the partition plate (12) in the first cavity, the control module (21) and the auxiliary drive power module (22) are arranged above the main flow channel (121) in sequence along the flow direction of the cooling liquid, and the main drive power module (23) is arranged above the at least two branch flow channels (122).

2. The electrical drive controller of claim 1, wherein, One side wall of the partition plate (12) is arranged with a liquid inlet connector (123) and a liquid outlet connector (124) along a first direction (Y), one end of the main flow channel (121) communicates with the liquid inlet connector (123), the other ends of the at least two branch flow channels (122) communicate with the liquid outlet connector (124), the branch flow channels (122) extend along a second direction (X) and are arranged at intervals along the first direction (Y), and the first direction (Y) and the second direction (X) are perpendicular and both are located on the plane where the partition plate (12) is located.

3. The electrical drive controller of claim 1, wherein, The shell further comprises a second shell (13), the second shell (13) is arranged on the side of the partition plate (12) away from the first shell (11), and the second shell (13) surrounds the partition plate (12) to form a second cavity. The functional module further comprises a DCDC controller (24), the DCDC controller (24) is arranged in the second cavity and on the partition plate (12), and the DCDC controller (24) is opposite to the main flow channel (121).

4. The electrical drive controller of claim 3, wherein, The DCDC controller (24) is opposite to the control module (21).

5. The electrical drive controller of claim 3, wherein, The first shell (11) is provided with a first exhaust hole communicating with the first cavity, and the electric drive controller further comprises a first exhaust fan arranged in the first exhaust hole. The second shell (13) is provided with a second exhaust hole communicating with the second cavity, and the electric drive controller further comprises a second exhaust fan arranged in the second exhaust hole.

6. The electrical drive controller according to any one of claims 1-5, characterized by, The control module (21) comprises a control circuit board (211) and a capacitor (212) arranged on one side of the control circuit board (211), and the capacitor (212) is used for abutting against the partition plate (12).

7. The electrical drive controller according to any one of claims 1-5, characterized by, The functional module further comprises an electronic fuse (25) arranged in the first cavity and opposite to the main flow channel (121) between the control module (21) and the auxiliary drive power module (22).

8. The electrical drive controller according to any one of claims 1-5, characterized by, Further comprising a fuse box (3) arranged on the outer peripheral wall of the shell.

9. The electrical drive controller according to any one of claims 1-5, characterized by, The shell is an integrally casted molding.

10. A new energy vehicle, characterized in that, An electric drive controller according to any one of claims 1-9.

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