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Battery module and electric vehicle

A technology for battery modules and battery packs, which is applied in the direction of secondary batteries, circuits, electrical components, etc., and can solve the problems of battery module weight or volume increase

Active Publication Date: 2019-05-28
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is concern that the weight or volume of the battery module as a whole will increase

Method used

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  • Battery module and electric vehicle
  • Battery module and electric vehicle
  • Battery module and electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ＞

[0070] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

[0071] figure 1 It is a figure which shows the structure of the battery module 1 of this embodiment, and the electric vehicle V equipped with the said battery module 1 as a power supply.

[0072] The electric vehicle V includes a battery module 1 as a power storage device for storing electric power, a traveling motor (not shown) driven by the electric power supplied from the battery module 1 , and driving wheels (not shown) connected to the traveling motor. not shown). The battery module 1 is installed, for example, outside the vehicle, more specifically, on the lower side of a floor panel. In addition, the electric vehicle V includes a first cooling duct DL and a second cooling duct DR, and guides traveling wind generated when traveling using electric power supplied from the battery module 1 to a first side plate described later which is a heat generating surf...

no. 2 Embodiment approach ＞

[0106] Next, a second embodiment of the present invention will be described with reference to the drawings.

[0107] image 3 It is a circuit diagram showing the configuration of the control circuit of the Peltier element 3L, the Peltier element 3R, and the electric heater 26 in the battery module 1A of the present embodiment. In addition, in the following description, the same code|symbol is attached|subjected to the same structure as the battery module 1 of 1st Embodiment, and the detailed description is abbreviate|omitted.

[0108] The battery module 1A includes: a first DC power supply circuit 8A, a second DC power supply circuit 9A, and a thermostat controller 5A. In addition, in this embodiment, the first storage battery 81 and the second storage battery 91 may respectively use storage batteries different from the battery pack 2 , or may use the battery pack 2 instead.

[0109] A double switch 85 is provided on the first power line 84 of the first DC power supply circu...

no. 3 Embodiment approach ＞

[0115] Next, a third embodiment of the present invention will be described with reference to the drawings.

[0116] Figure 4 It is a circuit diagram showing the structure of the control circuit of the Peltier element 3L, the Peltier element 3R, and the electric heater 26 of the battery module 1B of this embodiment. In addition, in the following description, the same code|symbol is attached|subjected to the same structure as the battery module 1 of 1st Embodiment, and the detailed description is abbreviate|omitted.

[0117] The battery module 1B includes: a first DC power supply circuit 8B connecting the Peltier element 3L and the Peltier element 3R to the common storage battery 86; a second DC power supply circuit 9B connecting the electric heater 26 to the common storage battery 86; The temperature controller 5B controlled by the power supply circuit 8B and the power supply circuit 9B.

[0118] In the first DC power supply circuit 8B, the two Peltier elements 3L and 3R are...

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Abstract

The invention provides a battery module and an electric vehicle capable of appropriately controlling the temperature of a battery pack using a Peltier element. The battery module comprises: a batterypack comprising a plurality of stacked single battery cells; a plate-shaped Peltier element which absorbs heat at a heat absorbing surface and generates heat at the heat generating surface when the current flows; a heat conducting member which connects the battery pack and the heat absorbing surface; and a frame body which houses the battery pack, the Peltier element and the heat conducting member, wherein the heat generating surface contacts the side plate of the frame body. Between the side surface of the outer peripheral surface of the battery pack facing the heat absorbing surface and theheat absorbing surface, and between the bottom surface of the battery pack and the bottom plate of the frame body, heat insulating members having a lower thermal conductivity than the heat conductingmember are disposed.

Description

technical field [0001] The present invention relates to a battery module, in particular to a battery module including a battery pack and a frame, and an electric vehicle using the battery module as a power source, wherein the battery pack includes a plurality of stacked cells a battery, and the frame accommodates the battery pack. Background technique [0002] An electric vehicle such as a hybrid car or an electric car travels by driving a motor with electric power supplied from a battery module. The battery module includes: a battery pack formed by stacking a plurality of chargeable and dischargeable single cells such as lithium-ion batteries and nickel-metal hydride batteries; and a box-shaped housing for accommodating the battery pack. [0003] In other words, the battery pack generates heat as it is charged and discharged. Therefore, a cooling structure for maintaining the battery pack at a temperature suitable for charging and discharging is provided in the battery mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/637H01M10/6561H01M10/6572H01M10/658
CPCY02E60/10
Inventor 浅井香敦
Owner HONDA MOTOR CO LTD