Battery pack cooling structure

Abstract

This prevents liquid from entering the battery pack. [Solution] The cooling structure S for the battery pack comprises a battery pack 10, an intake passage 30 for introducing air into the battery pack 10, and an opening / closing member 40 provided in the intake passage 30. The opening / closing member 40 comprises a bezel 41 and a rotating fin 42 that can open and close the inside of the bezel 41. The rotating fin 42 is configured such that when liquid flows into the inside of the bezel 41 from the upstream side, the force of the liquid causes the rotating fin 42 to rotate and close the inside of the bezel 41.

Description

Technical Field

[0006] , ,

[0007] ,

[0001] The present disclosure relates to a cooling structure of a battery pack.

Background Art

[0002] Patent Document 1 discloses a cooling structure of a battery pack.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present disclosure is to prevent liquid from entering the battery pack in a cooling structure of the battery pack.

Means for Solving the Problems

[0005] The cooling structure of the battery pack according to the first aspect includes a battery pack, an intake passage for introducing air into the battery pack, and an opening / closing member provided in the intake passage. The opening / closing member includes a bezel and a rotary fin that can open and close the inside of the bezel. The rotary fin is configured such that when liquid flows in from the upstream side inside the bezel, the rotary fin rotates due to the momentum of the liquid and closes the inside of the bezel.

[0006] In this aspect, the cooling structure of the battery pack includes a battery pack and an intake passage for introducing air into the battery pack.

[0007] By the way, in such a structure, when liquid is spilled in the vehicle interior, there is a risk that the liquid enters the intake passage and then enters the battery pack. Therefore, in this embodiment, the cooling structure of the battery pack includes an opening / closing member provided in the intake passage. The opening / closing member includes a bezel and a rotating fin that can open and close the inside of the bezel. The rotating fin is configured such that when liquid flows into the inside of the bezel from the upstream side, the force of the liquid causes the rotating fin to rotate and close the inside of the bezel. This prevents liquid from entering the battery pack.

[0008] In the embodiments described later, the opening and closing member is provided at the beginning of the ventilation passage, but this embodiment is not limited to this.

[0009] In the embodiments described later, the opening / closing member is provided on the upstream side of the blower, but this embodiment is not limited to this.

[0010] In the embodiments described later, multiple rotating fins are provided, but this embodiment is not limited to this.

[0011] In the second embodiment of the battery pack cooling structure, in the first embodiment, a plurality of rotating fins are provided, and the plurality of rotating fins are configured to interlock with one another.

[0012] In this embodiment, multiple rotating fins are provided, and the multiple rotating fins are configured to interlock with each other. Therefore, the opening and closing member can be properly positioned in both the open and closed states.

[0013] In the third embodiment, the cooling structure for the battery pack, in the second embodiment, comprises a connecting member that connects the plurality of rotating fins to one another.

[0014] In this embodiment, the opening and closing member includes a connecting member that connects a plurality of rotating fins to each other. Therefore, a simple configuration can be used to set up multiple rotating fins to work in conjunction with each other.

[0015] In the cooling structure of the battery pack according to the fourth aspect, in any of the first to third aspects, the cooling structure includes a biasing member that biases the rotating fin in a direction in which the opening / closing member is opened when the opening / closing member is in a closed state.

[0016] In this aspect, the cooling structure includes a biasing member. The biasing member biases the rotating fin in a direction in which the opening / closing member is opened when the opening / closing member is in a closed state. Therefore, it is possible to prevent the opening / closing member from remaining in a closed state.

[0017] In the cooling structure of the battery pack according to the fifth aspect, in any of the first to fourth aspects, the rotating fin is configured to receive a force in a direction in which the rotating fin closes due to the weight of the liquid when the liquid adheres to a portion of the rotating fin upstream of the rotation axis of the rotating fin.

[0018] In this aspect, the rotating fin is configured to receive a force in a direction in which the rotating fin closes due to the weight of the liquid when the liquid adheres to a portion of the rotating fin upstream of the rotation axis of the rotating fin. Therefore, it can be configured to easily close the opening / closing member by the momentum of the water when the liquid spills.

Advantages of the Invention

[0019] As described above, according to the present disclosure, it is possible to prevent liquid from entering the battery pack.

Brief Description of the Drawings

[0020] [Figure 1] It is a schematic diagram showing the cooling structure of the battery pack. [Figure 2] It is a schematic diagram showing a state in which the opening / closing member is closed in the cooling structure of the battery pack.

Modes for Carrying Out the Invention

[0021] Hereinafter, the cooling structure S of the battery pack according to the embodiment will be described.

[0022] The cooling structure S of the battery pack is a structure provided in a vehicle (automobile). The automobile is, for example, a hybrid vehicle (HEV: Hybrid Electric Vehicle).

[0023] As shown in FIGS. 1 and 2, the cooling structure S includes a battery pack 10, a blower 20, an intake passage 30, and an opening / closing member 40. <00001​​​​​​​​​​​​​​​​​​​​​The bezel 41 is formed in a frame shape. The bezel 41 is positioned so that air can pass through its interior. The bezel 41 is positioned such that, for example, the direction of the air passing through it is horizontal, but is not limited to this. The direction of the air may be oblique to the horizontal or vertical. As an example, the direction of the air may be diagonally downward.

[0030] Multiple rotating fins 42 are provided on the inside of the bezel 41. Each of the multiple rotating fins 42 has a pivot axis 42A and is configured to be rotatable. This allows the multiple rotating fins 42 to open and close the inside of the bezel 41. The pivot axis 42A is supported by the bezel 41.

[0031] The connecting member 43 connects the multiple rotating fins 42 so that they interlock. The connecting member 43 connects, for example, the portions of the multiple rotating fins 42 downstream of the rotation axis 42A. The connecting member 43 is, for example, a rod-shaped member.

[0032] The biasing member 44 biases the rotating fin 42 in a direction that causes the opening / closing member 40 to open when the opening / closing member 40 is in the closed position. The biasing member 44 is, for example, an elastic member, specifically, a metal spring member.

[0033] The biasing member 44 is provided, for example, downstream of the rotating shaft 42A. The biasing member 44 is, for example, a coil-shaped spring member, and is compressed when the multiple rotating fins 42 are in a closed state. Then, the elastic restoring force in the compressed state biases the multiple rotating fins 42 in the direction of opening.

[0034] With the cooling structure S of the battery pack configured as described above, when water attempts to forcefully enter downstream of the opening / closing member 40, the force of the water causes the rotating fins 42 to rotate and close, preventing water from entering downstream of the opening / closing member 40. The multiple rotating fins 42 then return to the open state (original state) due to the biasing force of the biasing member 44.

[0035] <Effects and Effects> Next, the effects and advantages of this embodiment will be described.

[0036] In this embodiment, as shown in Figure 1, the cooling structure S of the battery pack comprises a battery pack 10 and an intake passage 30 for introducing air into the battery pack 10.

[0037] However, with this structure, if liquid is spilled inside the vehicle, there is a risk that the liquid will enter the intake passage 30 and enter the inside of the battery pack 10. Therefore, in this embodiment, the cooling structure S of the battery pack includes an opening / closing member 40 provided in the intake passage 30. The opening / closing member 40 includes a bezel 41 and a rotating fin 42 that can open and close the inside of the bezel 41. The rotating fin 42 is configured such that when liquid flows into the inside of the bezel 41 from the upstream side, the force of the liquid causes the rotating fin 42 to rotate, closing the inside of the bezel 41. Therefore, it is possible to prevent liquid from entering the battery pack 10.

[0038] Furthermore, in this embodiment, as shown in Figures 1 and 2, multiple rotating fins 42 are provided, and the multiple rotating fins 42 are configured to interlock with each other. Therefore, the opening / closing member 40 can be appropriately set to either an open or closed state.

[0039] Furthermore, in this embodiment, the opening / closing member 40 includes a connecting member 43 that connects a plurality of rotating fins 42 to each other. Therefore, a simple configuration can be used to link multiple rotating fins 42 together.

[0040] Furthermore, in this embodiment, the cooling structure S of the battery pack includes a biasing member 44. When the opening / closing member 40 is in the closed state, the biasing member 44 biases the rotating fins 42 in a direction that causes the opening / closing member 40 to open. Therefore, it is possible to prevent the opening / closing member 40 from remaining in the closed position.

[0041] Furthermore, in this embodiment, the rotating fin 42 is configured such that when liquid adheres to the portion of the rotating fin 42 upstream of the rotation axis 42A, the weight of the liquid causes the rotating fin 42 to receive a force in the direction of closing. Therefore, the opening / closing member 40 can be easily configured to be in the closed position.

[0042] This embodiment also relates to an opening / closing member 40. The opening / closing member 40 comprises a bezel 41 and a rotating fin 42 that can open and close the inside of the bezel 41. The rotating fin 42 is configured such that when liquid flows into the inside of the bezel 41 from the upstream side, the force of the liquid causes the rotating fin 42 to rotate, closing the inside of the bezel 41.

[0043] While preferred embodiments of the present disclosure have been described above, the present disclosure is not limited to the above description. [Explanation of symbols]

[0044] S cooling structure 10 battery packs 20 blowers 30 Intake passage 40 Opening / closing member 41 Bezel 42 Rotating Fins 42A Rotating shaft 43 Connecting member 44. Biasing member

Claims

1. Battery pack and An intake passage for introducing air into the aforementioned battery pack, An opening / closing member provided in the intake passage, Equipped with, The opening and closing member is The bezel and, The inside of the bezel is a rotating fin that can be opened and closed, Equipped with, The rotating fin is configured such that when liquid flows into the inside of the bezel from the upstream side, the force of the liquid causes the rotating fin to rotate and close the inside of the bezel. Battery pack cooling structure.

2. Multiple rotating fins are provided, The plurality of rotating fins are configured to interlock with each other. Cooling structure for a battery pack according to claim 1.

3. The opening and closing member is Connecting members that connect the plurality of rotating fins to each other Equipped with, The cooling structure for the battery pack according to claim 2.

4. The aforementioned cooling structure is When the opening / closing member is in the closed position, a biasing member biases the rotating fin in the direction that causes the opening / closing member to open. Equipped with, Cooling structure for a battery pack according to claim 1.

5. The rotating fin is configured such that when liquid adheres to the portion of the rotating fin upstream of the axis of rotation, the weight of the liquid causes a force that closes the rotating fin. Cooling structure for a battery pack according to claim 1.

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