CN212034484U - Integrated controller of electric vehicle - Google Patents
Integrated controller of electric vehicle Download PDFInfo
- Publication number
- CN212034484U CN212034484U CN202020646661.2U CN202020646661U CN212034484U CN 212034484 U CN212034484 U CN 212034484U CN 202020646661 U CN202020646661 U CN 202020646661U CN 212034484 U CN212034484 U CN 212034484U
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- circuit board
- control circuit
- ipm
- shell
- housing
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Abstract
The utility model discloses an electric motor car integrated controller, including casing, control circuit board subassembly, IPM power module, and inner loop ventilation module etc. The casing is inside to set up a plurality of baffles, forms a plurality of installation cavities, the two subtend sides of installation cavity are equipped with the concave groove for install control circuit board subassembly, therefore keep apart each other after control circuit board subassembly installs inside it, do not receive the interference of inside high power device and have good shockproof effect. The internal circulation ventilation module comprises a fan and a radiator, and air circulation inside the controller is guaranteed during operation. Meanwhile, a high-frequency magnetic ring is added at the output wiring position of the intelligent power module, so that the electromagnetic interference of an IPM power module inside the intelligent power module on a control circuit board is avoided.
Description
Technical Field
The utility model relates to an electric motor car technical field specifically, relates to an electric motor car integrated controller.
Background
In the related art, an integrated controller of an electric vehicle is used as a core component of a finished vehicle, and includes various functions such as motor drive control, DC-DC direct-current voltage conversion, vehicle control and processing, such as accelerator, brake, steering control, and in-vehicle electrical control, and is respectively integrated in each circuit board and circuit module, and is installed together in a metal closed space to form the integrated controller of the electric vehicle, so as to facilitate the electrical centralized control of the vehicle.
Because the whole metal seal is adopted, the primary EMI requirement is met, namely, electromagnetic waves are not radiated to the outside and the influence of external interference is avoided. But the internal design installation arrangement thereof has the following problems:
1. all the functional modules and the control circuit are mixed and arranged in the same metal closed space, and are not shielded and isolated, so that strong electricity generated by power driving is easy to interfere with control weak electricity, namely internal crosstalk;
2. because of the waterproof requirement, the whole is closed, and no ventilation and heat dissipation exist in the circuit board, local electronic components of the circuit board are easy to overheat and lose efficacy;
3. the internal control circuit board has poor shock resistance.
The control is unstable and even breaks down when the vehicle runs, the vehicle is easy to lose control, and great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
To the problem that exists now, the utility model aims at providing relevant technical measure, solves foretell problem for the controller of vehicle is safe and reliable more stably.
In order to achieve the above object, the utility model provides a following technical scheme: an electric vehicle integrated controller comprising: the shell and the closing cover can be combined into a whole, and the shell part of the joint surface of the shell and the closing cover is provided with a groove for placing an adhesive tape to form sealing; an IPM Intelligent Power Module (IPM); a heat-dissipating substrate; the control circuit board assembly comprises a circuit board body and a mounting bracket, wherein the circuit board body is controlled according to control functions, including power drive control of a walking drive motor, vehicle control signal processing, DC-DC direct-current voltage conversion, self diagnosis, brake energy recovery control and the like; the internal circulation ventilation module comprises a radiator and a fan and is reasonably arranged in the shell, so that ventilation airflow can blow to the control circuit board assembly when the internal circulation ventilation module runs; also included are input terminals and output terminals. The input terminal comprises a power supply input and a vehicle control signal input, and the output terminal comprises an IPM output and a control signal output.
The shell is internally provided with a plurality of metal clapboards to form a plurality of mounting cavities which are isolated from each other, meshes are formed on the clapboards so that air can circulate, meanwhile, two opposite side surfaces of each mounting cavity are provided with concave grooves for inserting control circuit board assemblies, and after mounting and positioning, each control circuit board assembly is shielded and isolated from each other due to the action of the clapboards; preferably, in order to prevent the IPM power device from interfering with the control circuit during operation, the IPM power device is installed by opening up a space inside the housing, i.e., by being collectively placed in the same installation cavity for shielding. Meanwhile, a high-frequency magnetic ring is arranged at the output wiring position of the IPM power device to eliminate electromagnetic sharp waves.
The control circuit board assembly comprises a circuit board body and a mounting bracket. The mounting bracket clamps and fixes the circuit board body, when the mounting bracket is mounted, the side edge of the control circuit board assembly is inserted into the concave groove from top to bottom, and after the mounting bracket is in place, the upper part of the mounting bracket is fixed by screws.
The input terminal and the output terminal are respectively and electrically connected with the IPM and the control circuit board assembly and are respectively installed on the shell, and the outside of the input terminal and the output terminal is connected with an execution end and a control electric appliance of the vehicle.
The IPM is mounted on the heat dissipation substrate and integrally mounted on an inner wall of the housing in one of the mounting chambers.
Preferably, the heat dissipation substrate is internally provided with a water channel and is externally connected with a water pipe and cooled by cooling water.
Alternatively, a heat dissipating substrate is provided with heat dissipating fins, and a fan is mounted thereon.
The internal circulation ventilation module comprises a fan and a radiator, and the radiator is provided with fins. In operation, the fan blows a cooled air flow over the circuit board assembly and circulates within the housing.
Optionally, a water channel is formed in the radiator, and an external water pipe is connected with cooling water. The above embodiment brings the following beneficial effects:
1. due to the shielding effect of the metal partition plate, the electromagnetic interference of the IPM power module on the control circuit board is eliminated;
2. the internal circulation ventilation module enables air inside the integrated controller to circulate and dissipate heat, so that electronic components on the circuit board are prevented from being overheated;
3. the limit of the concave groove in the shell is combined with the fixed installation of the screw at the upper part, so that the shock resistance of the internal circuit board assembly is enhanced.
Drawings
Fig. 1 is an exploded view of an integrated controller for an electric vehicle according to an embodiment of the present invention;
fig. 2 is a schematic view of a housing according to an embodiment of the invention;
fig. 3 is a schematic structural view of an internal circulation ventilation module according to an embodiment of the present invention;
fig. 4 is a schematic view of a heat-dissipating substrate with heat-dissipating fins and a fan according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a control circuit board assembly according to an embodiment of the present invention;
fig. 6 is an enlarged view of region a of fig. 1 in accordance with an embodiment of the present invention;
fig. 7 is an enlarged view of region B of fig. 1 in accordance with an embodiment of the present invention;
in the figure: 100 casing, 101 groove, 102 partition board, 103 concave groove, 104 casing fin, 105 opening, 106 cooling water pipe through hole, 107 installation chamber, 108 electric socket, 200 control circuit board assembly, 201 circuit board body, 202 metal pin, 210 installation support, 211U-shaped clamp plate, 212 horizontal plate, 213 edging, 300 cover, 410 output terminal, 411 high frequency magnetic ring, 412IPM output terminal, 420 input terminal, 500 heat pipe, 600IPM module, 610IPM, 630 heat dissipation substrate, 631 cooling water pipe I, 700 internal circulation ventilation module, 701 fan, 702 radiator, 703 air guide pipe, 706 cooling water pipe II, 800 screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings of the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.
The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1-7, according to the utility model discloses electric motor car integrated controller: the controller comprises a shell 100 and a cover 300, wherein the shell 100 and the cover 300 can be combined into a whole to be used as a container of the whole integrated controller; a control circuit board assembly 200; the IPM module 600; an internal circulation ventilation module 700; output terminals 410 and input terminals 420 are also included.
According to the requirement, the power devices in the IPM 610 can be separated from the control module thereof, the power devices are separately and centrally placed, uniformly radiated and shielded, and the control module is integrated on the control circuit board assembly 200. The power devices thereof are mounted on the heat dissipation substrate 630.
The shell 100 and the cover 300 are combined, the combination surface is provided with a groove 101 for placing an adhesive tape to form sealing, the periphery is fixed by screws, the bottom of the shell 100 is externally provided with a mounting hole for being conveniently mounted and fixed on an electric vehicle body, and a shock pad is added according to the requirement.
As shown in fig. 2, a partition plate 102 made of metal is disposed inside the housing 100 to form a plurality of mounting chambers 107, which are shielded and isolated from each other, and the partition plate 102 is provided with meshes for air circulation.
The chambers 107 formed by the partitions 102 are arranged on the same horizontal plane, or may be arranged at different heights, above and below, or in a mixture of horizontal and height.
Meanwhile, in a side surface of one of the mounting chambers 107 where the functional circuit board assembly 200 is to be mounted, a concave groove 103 is provided, which is perpendicular to the bottom surface and is disposed opposite to the bottom surface, for inserting the control circuit board assembly 200, and an upper surface of the concave groove 103 is opened with a screw hole for fastening with a screw 800.
Further, an electrical socket 108 is additionally provided on the bottom of the housing 100 of the mounting chamber 107, coplanar with the oppositely disposed concave grooves 103, for connecting the circuit board as an electrical input/output channel and performing a positioning function.
Further, the housing 100 is provided with an opening 105 as a connection passage for input or output, and a via hole 106 for the cooling water pipe one 631.
As shown in fig. 1 and 4, IPM 610 is mounted on heat dissipation substrate 630, and then integrally and fixedly mounted on the inner surface of one of the mounting chambers 107;
in order to enhance the cooling of the heat dissipation substrate 630, a water channel is formed in the heat dissipation substrate, and the heat dissipation substrate is externally connected with a first cooling water pipe 631 and is cooled by cooling water. The external cooling water pipe one 631 extends out of the shell through the through hole 106.
Further, as shown in fig. 4, the heat dissipating substrate 630 is provided with heat dissipating fins, a fan 701 is mounted thereon, and an air guiding pipe 703 is provided, so that when the fan 701 is operated, air cooled by the heat dissipating fins flows to the control circuit board assembly 200 through the air guiding pipe 703 to perform ventilation and heat dissipation, and air inside the entire controller is circulated.
Further, on the outside of the case 100 where the heat dissipation substrate 630 of the IPM 610 is mounted, a heat sink is mounted, on which fins are provided for further heat dissipation, and a fan is additionally mounted as necessary. This can also be understood as thickening the heat dissipation substrate 630, and extending a portion of the heat dissipation substrate to be exposed outside the housing to enhance heat dissipation.
Fig. 4 also shows that the IPM 610 has high frequency magnetic rings 411 added at the pins from the power device to the load, respectively, to reduce the electromagnetic interference generated by the power output. While the control lines of the power devices are connected to the control circuit board assembly 200.
Further, the IPM module 600, placed in a single space inside the housing, forms an isolation shield due to the partition plate 102, and eliminates interference with weak current control.
As shown in fig. 1 and 3, in order to better dissipate heat and enhance air circulation inside the internal control circuit board assembly 200 of the integrated controller of the electric vehicle of the present embodiment, an internal circulation ventilation module 700 is additionally disposed at a suitable position inside the integrated controller. The internal circulation ventilation module comprises a fan 701 and a radiator 702, wherein the radiator 702 is a radiating fin machined on a metal base block, the fan 701 is installed at the front part of the radiator, and air flows through the radiator 702 during operation, is cooled and then is longitudinally blown to the control circuit board assembly 200 to take away heat. In another mode, the fan 701 of the internal circulation ventilation module 700 is mounted to the rear of the heat sink 702, and the fan 701 blows cooled air toward the control circuit board assembly 200 when operating.
Furthermore, a water channel is arranged in the radiator 702 of the internal circulation ventilation module 700 and is externally connected with a second cooling water pipe 706, and the second cooling water pipe is connected with cooling water for cooling.
Optionally, the internal circulation ventilation module 700 is connected to the heat dissipation substrate 630 through the heat pipe 500 to equalize the temperatures of the two, thereby reducing the single overheating phenomenon.
Further, the heat sink 702 of the internal circulation ventilation module 700 leaves an installation space for installing the power device to dissipate heat.
Optionally, the internal circulation ventilation module 700 and the heat dissipation substrate 630 share a cooling water pipe, and are connected in parallel or in series, so as to simplify the structure. As shown in fig. 5, the control circuit board assembly 200 is composed of a circuit board body 201 and a mounting bracket 210, wherein the mounting bracket 210 includes a U-shaped clamp plate 211, a cross plate 212 is welded on the upper portion of the U-shaped clamp plate, and mounting holes are drilled at two ends of the U-shaped clamp plate. The U-shaped clamp plate 211 is clamped on the upper edge of the circuit board body 201, penetrates through a plurality of arrangement holes, is fastened by screws or rivets and is adhered by glue. When necessary, the surface of the circuit board body 201 is sprayed with special protective paint or dipped with epoxy glue.
Further, the lower edge of the circuit board body 201 is provided with metal pins 202 that are electrically connected to components on the circuit board body for electrical communication with the electrical sockets 108 after installation.
Further, the U-shaped clamping plates 211 extend to the left and right sides of the lower portion of the circuit board, and a trim 213 is formed to the circuit board body to protect the circuit board body.
As shown in fig. 1 and 6, when the control circuit board assembly 200 is mounted, the left and right edges of the control circuit board assembly are respectively clamped into the concave groove 103 in the housing mounting cavity, the control circuit board assembly is guided in from top to bottom, two ends of the transverse plate of the mounting bracket are arranged on the upper surface of the concave groove 103 after positioning, and then the control circuit board assembly is fastened by screws 800, and meanwhile, the lower edge of the control circuit board body is inserted into the electrical socket 108 along with the metal pins 202, so that electrical connection is realized, the positioning rigidity is increased, the control circuit board assembly 200 is more stable and firm after mounting, and the vehicle is not easy to shake when walking.
Meanwhile, the control circuit board assembly 200 is arranged in the installation cavity 107 formed by the partition plates in the shell, so that shielding isolation is realized, and strong current random interference of a power device on a control signal is avoided.
In order to further enhance the internal heat dissipation of the integrated controller of the electric vehicle of the present embodiment, raised casing fins 104 are formed on the partial surface or the entire surface of the inner wall of the casing 100 to increase the internal surface area, so that the heat can be dissipated more easily. A water channel is arranged in the fan body according to requirements, is externally connected with a water pipe and is provided with a fan. The housing fins 104, which may be in the form of inserts, are mounted on the housing 100 in the same manner as the internal circulation ventilation module 700, as shown in fig. 3, which provides more flexibility in arrangement.
As shown in fig. 1 and 7, the output terminal 410 and the input terminal 420 are mounted on the opening 105 of the housing 100, the interior of the housing is connected with the IPM 610 and the control circuit board assembly, and the exterior of the housing is connected with the vehicle execution terminal and the control electrical equipment; the output terminal 410 includes the output post 412 of the IPM 610. In the embodiment of the present invention, in order to reduce the working time of the high power devices such as IPM 610, the high-order harmonic formed by the large current of the non-sinusoidal wave forms the interference of the electromagnetic wave to the control circuit, and the high-frequency magnetic ring 411 is added at the output terminal 412, so that the work of the vehicle control component caused by the eliminated electromagnetic interference is unstable. It is understood that the position of the high-frequency magnetic ring 411 may be at any position on the connection wire to the output terminal 412.
Furthermore, a screen metal shielding cover 205 is additionally arranged on an important control chip on the circuit board body 201 to eliminate external interference. Meanwhile, the output cable of the IPM 610 is sheathed with a metal shielding net and is grounded.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention, and can be right the technical solution of the present invention can be carried out with various simple modifications, and these simple modifications all belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical" and "vertical" are used,
The terms "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in a generic and descriptive sense only and not for purposes of limitation, and are not intended to indicate or imply that the referenced device or element must have the particular orientation, configuration, or operation in the particular orientation illustrated in the drawings and thus should not be considered limiting.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An electric motor car integrated control ware which characterized in that: the intelligent air conditioner comprises a shell (100) and a close cover (300), wherein an IPM module (600), a control circuit board assembly (200), an internal circulation ventilation module (700), an input terminal (420) and an output terminal (410) are installed in the shell (100), and the output terminal (410) is installed on an opening (105) of the shell (100);
the shell (100) comprises a groove (101), a clapboard (102), a concave groove (103), a shell fin (104), an opening (105), a cooling water pipe through hole (106) and an electric socket (108), the groove (101) is arranged on the joint surface of the shell (100) and the close cover (300), the partition plates (102) are arranged inside the shell (100) to form a plurality of mounting chambers (107), the partition board (102) is provided with meshes, the concave grooves (103) are arranged in the side surface of one of the mounting chambers (107) where the control circuit board assembly (200) is required to be mounted, are vertical to the bottom surface and are oppositely arranged, the upper part of the shell is drilled with a threaded hole, the electric socket (108) is arranged at the bottom of the shell at the position of the opposite concave groove (103), coplanar with the concave groove (103), the control circuit board assembly (200) is installed in the installation chamber (107) through the concave groove (103);
the IPM module (600) comprises an IPM (610) and a heat dissipation substrate (630), wherein the IPM (610) is installed on the heat dissipation substrate (630) and is integrally and fixedly installed on the inner face of one of the installation chambers (107);
the control circuit board assembly (200) comprises a circuit board body (201) and a mounting bracket (210), wherein the mounting bracket (210) comprises a U-shaped clamping plate (211) and a transverse plate (212), mounting holes are formed in two ends of the transverse plate (212) and are welded to two ends of the U-shaped clamping plate (211), the U-shaped clamping plate (211) clamps the upper edge of the circuit board body (201), a hole is formed in the upper edge of the circuit board body, the hole is fastened by screws or rivets, and metal pins (202) are arranged on the lower edge of the circuit board body (201) and are electrically connected with internal elements;
the internal circulation ventilation module (700) comprises a fan (701) and a heat sink (702), wherein the fan (701) is installed on the heat sink (702);
the output terminal (410) and the input terminal (420) are internally connected with the IPM (610) and the control circuit board assembly respectively, and the outside is connected with an execution terminal and a control electric appliance of the vehicle.
2. The integrated controller of an electric vehicle according to claim 1, wherein: the partition (102) forms a mounting chamber (107) with the housing (100).
3. The integrated controller of the electric vehicle as claimed in claim 1, wherein the heat-dissipating substrate (630) is formed with heat-dissipating fins, a water channel is formed therein, a first external cooling water pipe (631) is provided, the fan (701) is mounted thereon, and an air guiding pipe (703) is additionally provided, wherein the first external cooling water pipe (631) extends out of the housing through the through hole (106).
4. The integrated controller of claim 1, wherein the heat-dissipating substrate (630) is thickened and extends out of the housing (100).
5. The integrated controller of claim 1, wherein the radiator (702) has a water channel therein and is externally connected to a second cooling water pipe (706).
6. The integrated controller of claim 1, wherein the internal circulation ventilation module is connected to the heat dissipation substrate (630) through a heat pipe (500).
7. The integrated controller of the electric vehicle as claimed in claim 1, wherein the partial surface of the inner wall of the housing (100) is provided with inwardly protruding housing fins (104), and a fan is additionally arranged on the housing fins, and a water channel is arranged in the housing to connect with the water pipe.
8. An integrated controller for an electric vehicle as claimed in claim 7, wherein the housing fins (104) are in the form of inserts mounted on the housing (100).
9. An integrated controller for electric vehicle as claimed in claim 1, wherein several high frequency magnetic rings (411) are provided at the power output wiring of the IPM (610) and metal shielding net is covered on the electric wire and grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020646661.2U CN212034484U (en) | 2020-04-26 | 2020-04-26 | Integrated controller of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020646661.2U CN212034484U (en) | 2020-04-26 | 2020-04-26 | Integrated controller of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212034484U true CN212034484U (en) | 2020-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020646661.2U Expired - Fee Related CN212034484U (en) | 2020-04-26 | 2020-04-26 | Integrated controller of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212034484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114302634A (en) * | 2021-12-30 | 2022-04-08 | 徐州科亚机电有限公司 | Anti-magnetic structure of electric vehicle controller |
-
2020
- 2020-04-26 CN CN202020646661.2U patent/CN212034484U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114302634A (en) * | 2021-12-30 | 2022-04-08 | 徐州科亚机电有限公司 | Anti-magnetic structure of electric vehicle controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201127 Termination date: 20210426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |