CN214647526U - Drive structure of electric vehicle - Google Patents

Drive structure of electric vehicle Download PDF

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Publication number
CN214647526U
CN214647526U CN202120618657.XU CN202120618657U CN214647526U CN 214647526 U CN214647526 U CN 214647526U CN 202120618657 U CN202120618657 U CN 202120618657U CN 214647526 U CN214647526 U CN 214647526U
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China
Prior art keywords
electric
converter
motor
electric converter
fixing member
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Active
Application number
CN202120618657.XU
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Chinese (zh)
Inventor
小関贵裕
采女贵寛
若林竜太
髙桥将轨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
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Honda Motor Co Ltd
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Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to CN202120618657.XU priority Critical patent/CN214647526U/en
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Publication of CN214647526U publication Critical patent/CN214647526U/en
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Abstract

The utility model provides an electric vehicle's drive structure can reduce the component number and reduce the cost of manufacture, and reduces the requirement to the equipment tolerance. The drive structure of the electric vehicle includes: a motor housing portion that houses a motor having a first electrical connection member; an electric converter mounted on the motor housing portion and having a second electric connection member; an insulating member provided inside the electric converter; and a fixing member that is inserted into the electric converter from an outer side of the electric converter, presses the first and second electric connection members via the insulating member in the electric converter, and electrically connects the electric motor and the electric converter by contacting the first and second electric connection members.

Description

Drive structure of electric vehicle
Technical Field
The utility model relates to an electric vehicle's drive structure.
Background
Conventionally, as a drive structure of an electric vehicle, an electric converter such as a Power Control Unit (PCU) including an inverter (inverter) and a supercharger (boost) may be directly mounted on a housing for a motor, for example, a motor housing portion. At this time, the electric connection member of the electric motor and the electric connection member of the electric converter correspond to each other inside the electric converter, so that the electric connection members can be inserted into the electric converter from the outside thereof through the fixing member to fix the electric connection members together inside the electric converter, and the electric motor and the electric converter are electrically connected by contacting each other through the electric connection members. However, since the fixing member is generally conductive using a bolt (bolt), an additional insulating member such as an insulating cap is provided outside the fixing member to insulate the fixing member, and an additional fixing point such as a nut (nut) is also provided on the electrical connection member to fix the fixing member. Thus, the number of components required for the drive structure of the electric vehicle increases to raise the manufacturing cost, and the requirements for tolerances during the assembly process become strict.
[ Prior art documents ]
[ patent document ]
[ patent document 1] Japanese patent laid-open publication No. 2020-141430
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric vehicle's drive structure can reduce the component number and reduce the cost of manufacture, and reduces the requirement to the equipment tolerance.
The utility model provides an electric vehicle's drive structure, include: a motor housing portion that houses a motor having a first electrical connection member; an electric converter mounted on the motor housing portion and having a second electric connection member; an insulating member provided inside the electric converter; and a fixing member that is inserted into the electric converter from an outer side of the electric converter, presses the first and second electric connection members via the insulating member in the electric converter, and electrically connects the electric motor and the electric converter by contacting the first and second electric connection members.
In an embodiment of the present invention, a waterproof member is provided between the fixing member and the electric converter.
In view of the above, the present invention provides a drive structure for an electric vehicle, in which a motor is accommodated in a motor accommodation portion, an electric converter is mounted on the motor accommodation portion, an insulating member is provided in the electric converter, and a fixing member is inserted into the electric converter from the outside of the electric converter, and presses a first electric connection member and a second electric connection member via the insulating member in the electric converter, so that the motor and the electric converter are electrically connected via the first electric connection member and the second electric connection member in contact with each other. In this way, the fixing member is blocked by the insulating member in the electric converter, and therefore, there is no need to provide an additional insulating member outside the fixing member to insulate the fixing member, and there is no need to provide an additional fixing point on the electric connecting member to fix the fixing member. Accordingly, the present invention provides a driving structure for an electric vehicle, which can reduce the number of components and the manufacturing cost, and reduce the requirement for assembly tolerance.
In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic diagram of a driving structure of an electric vehicle according to an embodiment of the present invention.
Description of reference numerals:
100: a drive structure of an electric vehicle;
110: a motor housing section;
120: an electrical converter;
122: a second electrical connection member;
124: an electrical converter unit;
126: a first housing;
126 a: an insertion hole;
128: a second housing;
130: an insulating member;
140: a fixing member;
150: an electric motor;
152: a first electrical connection member;
154: an insulating base body;
160: a waterproof member.
Detailed Description
Fig. 1 is a schematic diagram of a driving structure 100 of an electric vehicle according to an embodiment of the present invention. Referring to fig. 1, in the present embodiment, a driving structure 100 of an electric vehicle is adapted to be driven by an electric vehicle (not shown) which is driven via a transmission system including an electric motor and a gear train and in which a power control unit including an inverter and a supercharger, an Intelligent Power Module (IPM), or the like is mounted for power control. However, the present invention is not limited to the use of the driving structure 100 of the electric vehicle and the specific structure of the electric vehicle to which the present invention is applied, and it may be adjusted as needed.
Specifically, in the present embodiment, the drive structure 100 of the electric vehicle includes a motor housing 110, an electric converter 120, an insulating member 130, and a fixing member 140. The motor housing 110 houses a motor 150, and the motor 150 has a first electrical connection member 152. Further, the electric converter 120 is mounted on the motor housing portion 110, and has a second electric connection member 122. The insulating member 130 is disposed inside the electric converter 120, and the fixing member 140 is inserted into the electric converter 120 from the outside of the electric converter 120.
In the present embodiment, the motor housing 110 is, for example, a motor housing, the motor 150 is disposed inside the motor housing 110, and the first electrical connection member 152 of the motor 150 protrudes from the motor housing 110. The electrical converter 120 has an electrical converter unit 124, such as a smart power module, connected to the second electrical connection 122, and a first housing 126 and a second housing 128. That is, the first housing 126 and the second housing 128 of the electrical converter 120 are fixed together to form a space for accommodating the electrical converter unit 124 and the second electrical connection part 122, so that the electrical converter unit 124 and the second electrical connection part 122 are located inside the electrical converter 120. First electrical connection member 152 protruding outward from motor housing 110 extends into electrical converter 120 and is disposed opposite second electrical connection member 122. However, the present invention is not limited to the specific embodiments of the components such as the motor housing 110, the electric converter 120, and the motor 150, and can be adjusted as needed.
In the present embodiment, the insulating member 130 is, for example, an insulating wall and is disposed inside the electrical converter 120 and near the side walls of the first housing 126 and the second housing 128, so as to be disposed closer to a position (for example, an insertion hole 126a of the first housing 126) where the fixing member 140 (for example, a bolt or the like) is inserted than the first electrical connection member 152 and the second electrical connection member 122. That is, the insulating member 130 is provided between the fixing member 140 inserted into the electric converter 120 from the outside of the electric converter 120 and the first and second electric connection members 152 and 122. However, the present invention is not limited to the specific embodiments of the insulating member 130, the fixing member 140, and the like, and may be adjusted as needed.
In the present embodiment, the first electrical connection member 152 of the motor 150 is, for example, a conductive terminal, and is disposed on the insulating housing 154 to form an electrical connector, so as to protrude outward from the motor housing 110 and extend into the electrical converter 120. The second electrical connection member 122 is, for example, a conductive terminal, and is located inside the electrical converter 120 and has flexibility. Therefore, the first electrical connection member 152 protruding from the motor housing 110 is preferably disposed inside the electrical converter 120 so as to be located inside the second electrical connection member 122. That is, the second electrical connection member 122 having flexibility is disposed closer to the insulating member 130 than the first electrical connection member 152, and thus the second electrical connection member 122 is located between the insulating member 130 and the first electrical connection member 152. However, as long as the first electrical connection part 152 and the second electrical connection part 122 are disposed opposite to each other and separated from the fixing part 140 by the insulation part 130, the present invention does not limit the relative positions of the first electrical connection part 152 and the second electrical connection part 122, which can be adjusted according to the requirement.
As such, in the present embodiment, during the insertion of the fixing member 140 into the electric converter 120 from the outside of the electric converter 120, the fixing member 140 first contacts the insulating member 130, and then pushes the first and second electric connecting members 152 and 122 disposed opposite to each other via the insulating member 130 during the continued movement, for example, pushes the second electric connecting member 122 having flexibility to contact the first electric connecting member 152 disposed on the insulating base 154. That is, the fixing member 140 presses the first and second electrical connection members 152 and 122, which are disposed to face each other, through the insulating member 130 in the electrical converter 120, so that the motor 150 and the electrical converter 120 are electrically connected by contacting each other through the first and second electrical connection members 152 and 122.
As can be seen, in the present embodiment, the first electrical connection member 152 and the second electrical connection member 122, which are disposed opposite to each other inside the electrical converter 120, can be brought into contact with each other by inserting the fixing member 140, so that the motor 150 and the electrical converter 120 are electrically connected. In this case, the fixing member 140 is blocked from contacting the first and second electrical connection members 152 and 122 via the insulating member 130 inside the electrical converter 120, thereby providing an insulating function to the fixing member 140, and thus there is no need to provide an additional insulating member (e.g., an insulating cover) on the outside of the fixing member 140 to insulate the fixing member 140, and there is no need to provide an additional fixing point on the electrical connection members (e.g., the first and second electrical connection members 152 and 122) to fix. Accordingly, the driving structure 100 of the electric vehicle can reduce the number of components to reduce the manufacturing cost, and reduce the requirement for assembly tolerance.
In the present embodiment, a waterproof member 160 is provided between the fixing member 140 and the electric converter 120. The waterproof member 160, such as a waterproof gasket or a waterproof strip, is provided at a position (e.g., the insertion hole 126a) where the fixing member 140 is inserted and between the fixing member 140 and the outer surface of the electric converter 120, thereby providing a waterproof function to the position where the fixing member 140 is inserted, and thus there is no need to provide an additional waterproof member (e.g., a waterproof cover) on the outer side of the fixing member 140 to waterproof the fixing member 140. However, the present invention is not limited to the specific embodiment and the arrangement of the waterproof member 160 and other members, and may be adjusted according to the requirement.
As described above, the drive structure of an electric vehicle according to the present invention includes a motor housing portion that houses a motor, an electric converter that is mounted on the motor housing portion, an insulating member that is provided inside the electric converter, and a fixing member that is inserted into the electric converter from the outside of the electric converter, and presses the first electric connecting member and the second electric connecting member via the insulating member inside the electric converter, so that the motor and the electric converter are electrically connected by contacting each other via the first electric connecting member and the second electric connecting member. Preferably, a waterproof member is provided between the fixing member and the electric converter. In this way, the fixing member is blocked by the insulating member in the electric converter, and therefore, there is no need to provide an additional insulating member outside the fixing member to insulate the fixing member, and there is no need to provide an additional fixing point on the electric connecting member to fix the fixing member. Accordingly, the present invention provides a driving structure for an electric vehicle, which can reduce the number of components and the manufacturing cost, and reduce the requirement for assembly tolerance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the embodiments of the present invention, and the essence of the corresponding technical solutions is not disclosed.

Claims (2)

1. A drive structure of an electric vehicle, characterized by comprising:
a motor housing portion that houses a motor having a first electrical connection member;
an electric converter mounted on the motor housing portion and having a second electric connection member;
an insulating member provided inside the electric converter; and
and a fixing member that is inserted into the electric converter from an outer side of the electric converter, presses the first and second electric connection members via the insulating member in the electric converter, and electrically connects the electric motor and the electric converter by contacting the first and second electric connection members.
2. The drive structure of an electric vehicle according to claim 1,
a waterproof member is provided between the fixing member and the electric converter.
CN202120618657.XU 2021-03-26 2021-03-26 Drive structure of electric vehicle Active CN214647526U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120618657.XU CN214647526U (en) 2021-03-26 2021-03-26 Drive structure of electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120618657.XU CN214647526U (en) 2021-03-26 2021-03-26 Drive structure of electric vehicle

Publications (1)

Publication Number Publication Date
CN214647526U true CN214647526U (en) 2021-11-09

Family

ID=78456412

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120618657.XU Active CN214647526U (en) 2021-03-26 2021-03-26 Drive structure of electric vehicle

Country Status (1)

Country Link
CN (1) CN214647526U (en)

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