Unlock instant, AI-driven research and patent intelligence for your innovation.
In-vehicle motor-driven compressor
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of electric compressors and compression parts, which is applied in the direction of AC motor control, machine/engine, liquid fuel engine, etc. It can solve the problems of reducing the damping effect, making it difficult for induced current to flow, and easy to accumulate heat, etc.
Active Publication Date: 2021-03-26
TOYOTA IND CORP
View PDF11 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003]
In the case where the entire choke is covered with an electrical conductor, there is a possibility that heat may easily accumulate
On the other hand, if a portion not covered by a conductor is provided to improve heat dissipation, the induced current will be difficult to flow, and the damping effect may be reduced.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
no. 1 approach
[0036] Hereinafter, the vehicle-mounted electric compressor according to the first embodiment will be described with reference to the drawings. The vehicle-mounted electric compressor of the present embodiment includes a compression unit that compresses a refrigerant as a fluid, and is used in a vehicle-mounted air conditioner. That is, the fluid to be compressed by the vehicle-mounted electric compressor in this embodiment is the refrigerant.
[0037] Such as figure 1 As shown, the vehicle-mounted air conditioner 10 includes a vehicle-mounted electric compressor 11 and an external refrigerant circuit 12 that supplies a refrigerant as a fluid to the vehicle-mounted motor compressor 11 . The external refrigerant circuit 12 includes, for example, a heat exchanger, an expansion valve, and the like. The in-vehicle electric compressor 11 compresses the refrigerant, and the external refrigerant circuit 12 performs heat exchange and expansion of the refrigerant. The vehicle air co...
no. 2 approach
[0113] Next, the second embodiment will be described focusing on differences from the first embodiment.
[0114] In the second embodiment, instead of Figure 3A , 3B , 3C, 3D, using Figure 13A , 13B , 13C, 13D structures shown. Hereinafter, the description will focus on differences from the first embodiment.
[0115] exist Figure 13A , 13B , 13C, and 13D, the common mode choke coil 34 of this embodiment includes: an annular core 50; a first winding 60 wound around the core 50; a second winding 61 wound around the core 50; and an enameled wire 90, 91 , 92 , 93 , and 94 are a plurality of covered conductive wires wound around the core 50 . The second winding 61 is away from the first winding 60 and is opposite to the first winding 60 . The enameled wires 90 , 91 , 92 , 93 , and 94 surround the core 50 while straddling the first winding 60 and the second winding 61 . In this embodiment, five enameled wires 90, 91, 92, 93, and 94 are provided, but the number of enameled...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Property
Measurement
Unit
thickness
aaaaa
aaaaa
thickness
aaaaa
aaaaa
Login to View More
Abstract
An in-vehicle motor-driven compressor includes a common mode choke coil. The common mode choke coil includes an annular core having a through-hole, a first winding and a second winding wound around the core, and a coated conductive wire. The second winding is opposed to the first winding while being spaced apart from the first winding. The coated conductive wire is wound around the core so as to surround the first winding, the second winding, and the core. The coated conductive wire has sections that are opposed to each other with the through-hole in between. An electric wire of the coated conductive wire is wound multiple turns around the core so as to at least partly overlap with the first and second windings. Both ends of the electric wire are electrically connected to each other. The core includes an exposed section that is not covered with the coated conductive wire.
Description
technical field [0001] The present disclosure relates to an electric compressor for a vehicle. Background technique [0002] WO 2017 / 170817 A discloses a choke coil covered with a conductor as a configuration of a common mode choke coil used in an inverter device for driving an electric motor in a vehicle-mounted electric compressor. In such a choke coil, an induced current flows through the conductor due to a leakage magnetic flux generated when a normal-mode current flows, and the induced current is converted into heat energy in the conductor. Therefore, the choke has a damping effect. [0003] In the case where the entire choke coil is covered with a conductor, there is a possibility that heat may easily accumulate. On the other hand, if a portion not covered with a conductor is provided in order to improve heat dissipation, the induced current will hardly flow and the damping effect may be reduced. Contents of the invention [0004] An object of the present disclosu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More