Mounting structure for electric compressor of vehicle

Abstract

To provide a mounting structure of an electric compressor for a vehicle, which can prevent a power cable from being pulled out from the electric compressor at the time of a collision.SOLUTION: A mounting structure of an electric compressor for a vehicle is configured such that an engine is disposed with respect to a vehicle body so as to be energized and the electric compressor is attached to the engine by fastening parts so as to be energized. A power cable configured to supply power to the electric compressor is connected via a connector to the electric compressor and is fixed to the engine by a fixing part. An earth cable configured to electrically connect the electric compressor and the engine is shorter than a length from a portion of the power cable, which is fixed to the engine by the fixing part to a portion of the power cable, which is connected to the electric compressor by the connector.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a mounting structure for an electric compressor in a vehicle. [Background technology]

[0002] Patent Document 1 discloses a vehicle structure in which an engine is mounted on a vehicle body so that it can be electrically connected, in which an electric compressor is bolted to the engine and a cover member for the electric compressor is also bolted to the engine. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-093767 Summary of the Invention [Problem to be solved by the invention]

[0004] Although Patent Document 1 describes that the cover member of the electric compressor functions as an earth, it does not describe any measures to prevent the power cable that supplies power to the electric compressor from becoming disconnected from the electric compressor in the event of a collision.

[0005] The present invention has been made in consideration of the above circumstances, and has an object to provide a mounting structure for an electric compressor of a vehicle that can prevent a power cable from coming loose from the electric compressor in the event of a collision. [Means for solving the problem]

[0006] The present invention provides an electric compressor mounting structure for a vehicle in which an engine is electrically connected to a vehicle body and an electric compressor is electrically connected to the engine by a fastening part, wherein a power cable that supplies power to the electric compressor is connected to the electric compressor via a connector and fixed to the engine by a fixing part, and an earth cable that electrically connects the electric compressor and the engine is shorter than the length from the part of the power cable fixed to the engine by the fixing part to the part connected to the electric compressor by the connector.

[0007] According to this configuration, since the length of the earth cable is shorter than the length of the power cable between the fixed portion and the connector, the earth cable can prevent the electric compressor from falling off even if the fastening portion breaks during a collision, thereby preventing the power cable from coming loose from the electric compressor.

[0008] The power cable and the earth cable may be fixed to the same position on the engine.

[0009] With this configuration, the power cable and the earth cable are fixed to the same position on the engine, and the length of the earth cable is shorter than the length of the power cable between the fixed portion and the connector, so even if the fastening portion breaks during a collision, the earth cable remains connected to the electric compressor with this fixed portion as a fulcrum, thereby preventing the power cable from coming loose from the electric compressor during a collision. [Effects of the Invention]

[0010] In the present invention, since the length of the earth cable is shorter than the length of the power cable between the fixed portion and the connector, the earth cable can prevent the electric compressor from falling off even if the fastening portion breaks during a collision, thereby preventing the power cable from coming loose from the electric compressor. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a schematic diagram illustrating a mounting structure of an electric compressor for a vehicle according to an embodiment; [Figure 2] FIG. 2 is a schematic diagram illustrating a mounting structure of an electric compressor. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, a mounting structure for an electric compressor in a vehicle according to an embodiment of the present invention will be specifically described, although the present invention is not limited to the embodiment described below.

[0013] FIG. 1 is a schematic diagram showing the mounting structure of an electric compressor for a vehicle in an embodiment. Vehicle 1 includes an engine 2 and an electric compressor 3. Engine 2 is the power source of vehicle 1. Electric compressor 3 is an A / C compressor that compresses and discharges refrigerant, and includes an electric motor. Engine 2 and electric compressor 3 are located in the front compartment of vehicle 1.

[0014] A power cable 4 is connected to the electric compressor 3. The electric compressor 3 has an electric motor driven by power supplied from the power cable 4.

[0015] The power cable 4 is an A / C cable that supplies power to the electric compressor 3. The power cable 4 is connected to the electric compressor 3 via a connector 5.

[0016] The vehicle 1 is provided with an earth cable 6 that electrically connects the electric compressor 3 and the engine 2. The earth cable 6 is a member that equalizes the potential between the housing of the electric compressor 3 and the engine 2. The earth cable 6 also functions as a member that prevents the electric compressor 3 from falling off.

[0017] Specifically, the electric compressor 3 is attached to the engine 2 via a fastening portion 7 in a manner that allows electricity to be applied thereto. The fastening portion 7 is a bolt fastening portion in which the electric compressor 3 and the engine 2 are fastened together by a bolt 7a. The fastening portion 7 includes a boss portion having a bolt hole, and the bolt 7a is screwed into the bolt hole of the boss portion. This boss portion functions as a fastening leg.

[0018] Furthermore, the electric compressor 3 is fixed to the engine 2 by a plurality of fastening portions 7. In the example shown in Fig. 1, the housing of the electric compressor 3 and the case of the engine 2 are integrated by four fastening portions 7.

[0019] The vehicle 1 is configured to prevent the electric compressor 3 from falling off the vehicle 1 if a radiator or other component interferes with the electric compressor 3 during a collision and the fastening parts 7 break. If all of the fastening parts 7 break during a collision, the fastening parts 7 are detached from the engine 2, preventing the electric compressor 3 from being equipotentially connected to the vehicle body via the fastening parts 7. Furthermore, if all of the fastening parts 7 break and the electric compressor 3 is physically disconnected from the engine 2, the electric compressor 3 will fall and the power cable 4 will become disconnected from the electric compressor 3. In this case, the contact protection requirement will no longer be met. Therefore, the vehicle 1 is equipped with an earth cable 6 that has the functions of equalizing the electric potential, preventing the electric compressor 3 from falling off, and preventing the connector from coming loose when the fastening parts 7 of the electric compressor 3 break during a collision.

[0020] The earth cable 6 is fixed to the engine 2 by a fixing part 8, and is fixed to the electric compressor 3 by a compressor-side fixing part 9. The fixing part 8 is provided at a predetermined position on the case of the engine 2, and fixes the earth cable 6 and the power cable 4 to predetermined positions on the engine case. The earth cable 6 and the power cable 4 are fixed to the same position on the engine 2 by the fixing part 8.

[0021] One end of the earth cable 6 is fixed to the engine 2 by a fixing part 8. The other end of the earth cable 6 is fixed to the electric compressor 3 by a compressor-side fixing part 9. The fixing part 8 functions as an engine-side fixing part for the earth cable 6.

[0022] The power cable 4 extends through a portion fixed to the engine 2 by a fixing portion 8, and is connected to the electric compressor 3 via a connector 5. The tip of the power cable 4 is formed by the connector 5, and the connector 5 is connected to the electric compressor 3. The fixing portion 8 functions as an engine-side fixing portion for the power cable 4, and the connector 5 functions as a compressor-side fixing portion. As a structure for preventing the connector 5 from coming loose from the electric compressor 3 (connector loosening) in the event of a collision, the length of the cable extending between the fixing portion 8 and the electric compressor 3 is formed so that the earth cable 6 is shorter than the power cable 4.

[0023] The length of the earth cable 6 is the length of the cable extending between the fixed part 8 and the compressor-side fixed part 9. The length of the power cable 4 between the fixed part 8 and the connector 5 is longer than the length of the earth cable 6. In other words, the length of the earth cable 6 is shorter than the length of the power cable 4 from the part fixed by the fixed part 8 to the part connected to the electric compressor 3 by the connector 5.

[0024] As described above, according to the embodiment, the earth cable 6 and the power cable 4 are fixed to the same position on the engine 2, and the length of the cable extending between the fixing portion 8 and the electric compressor 3 is shorter for the earth cable 6 than for the power cable 4. This makes it possible to prevent the electric compressor 3 from falling in the event of a collision. This makes it possible to prevent the power cable 4 from coming loose from the electric compressor 3 in the event of a collision. When the fastening portion 7 breaks, fixing the electric compressor 3 with the earth cable 6 prevents the electric compressor 3 from falling and the connector from coming loose, thereby achieving the contact protection requirement.

[0025] The structure of the fixing part 8 is not particularly limited. Similarly, the structure of the compressor-side fixing part 9 is not particularly limited. For example, both the fixing part 8 and the compressor-side fixing part 9 are formed by bolt fastening parts. The earth cable 6 is fastened to the engine 2 by the fixing part 8 with a bolt, and is fastened to the electric compressor 3 by the compressor-side fixing part 9 with a bolt. In other words, one earth terminal of the earth cable 6 is fastened to the case of the engine 2 at the fixing part 8 with a bolt, and the other earth terminal of the earth cable 6 is fastened to the housing of the electric compressor 3 at the compressor-side fixing part 9 with a bolt. In this case, the earth cable 6 and the power cable 4 are fastened to the engine 2 together at the fixing part 8 with a common bolt.

[0026] Furthermore, in the fixing portion 8, it is only necessary that the power cable 4 and the earth cable 6 are fixed by fixing members, and the type and number of fixing members are not particularly limited.

[0027] Furthermore, as long as the relationship between the cable lengths extending between the fixing part 8 and the electric compressor 3 is such that the earth cable 6 is shorter than the power cable 4, the connection position between the electric compressor 3 and the connector 5 and the position of the compressor side fixing part 9 are not particularly limited.

[0028] Furthermore, the earth cable 6 is configured to restrict the electric compressor 3 from moving relative to the engine 2 when all of the fastening portions 7 are broken. The earth cable 6 has sufficient rigidity to fix and support the electric compressor 3 while being supported by the fixing portions 8.

[0029] Furthermore, this mounting structure is not limited to the electric compressor 3, but can be applied to any high-voltage component that has a connector. [Explanation of symbols]

[0030] 1 vehicle 2 engines 3 Electric compressor 4 Power Cables 5 Connectors 6 Earth cable 7 Fastening part 8 Fixed part 9 Compressor side fixing part

Claims

1. An electric compressor mounting structure for a vehicle, in which an engine is provided to a vehicle body so as to be electrically connected, and an electric compressor is attached to the engine by a fastening portion so as to be electrically connected, a power cable that supplies power to the electric compressor is connected to the electric compressor via a connector and is fixed to the engine by a fixing portion; The length of the earth cable electrically connecting the electric compressor and the engine is shorter than the length of the power cable from the portion fixed to the engine by the fixing portion to the portion connected to the electric compressor by the connector.

1. A mounting structure for an electric compressor of a vehicle, comprising:

2. The power cable and the earth cable are fixed to the same position on the engine.

2. The mounting structure for an electric compressor of a vehicle according to claim 1.

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