Battery module

A battery module and battery unit technology, applied in the direction of battery, secondary battery, battery temperature control, etc., can solve the problems of temperature unevenness, reduced battery unit life, troublesome fixed operation, etc., achieve uniform cooling state, realize life, The effect of preventing leakage is different

Active Publication Date: 2014-06-18
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the cooling medium flowing along the separator leaks from the open opening window, or conversely, the excess cooling medium is sucked along the separator from the open opening window, so that the battery cells in contact with the separator equipped with the temperature sensor, Temperature unevenness occurs between battery cells that are in contact with a separator that is not equipped with a temperature sensor, which may cause a decrease in the life of the battery cell
[0006] In addition, in the invention described in the above-mentioned Patent Document 1, since the sensor holder including the temperature sensor is fixed to the partition plate with bolts, the fixing operation is troublesome and there is a problem that the assemblability deteriorates.

Method used

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Embodiment Construction

[0051] Below, according to Figure 1 to Figure 11 , the embodiment of the present invention will be described.

[0052] like figure 1 As shown, the battery module M for a hybrid vehicle includes, for example, a plurality of battery cells 11 . . . constituted by lithium-ion batteries. The rectangular parallelepiped battery unit 11 has: a pair of horizontally long rectangular main cooling surfaces 11a, 11a; a pair of side surfaces 11b, 11b sandwiched between the pair of main cooling surfaces 11a, 11a; Between the top surface 11c and the bottom surface 11d between 11a and 11a, a pair of terminals 11e and 11e protrude from the top surface 11c. A plurality of battery cells 11 ... are stacked in a state in which holders 12 ... of the same shape made of synthetic resin are sandwiched between the main cooling surfaces 11 a ....

[0053] It should be noted that, in this specification, the direction in which a plurality of battery cells 11 are stacked ... The direction is defined as...

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Abstract

A battery module includes a plurality of battery cells, a plurality of holders, and a thermistor. Each of at least one of holders includes a thermistor holder. The thermistor supporter includes a pair of thermistor receiving segments, a pair of thermistor engagement segments, and a thermistor cover portion. The sensor casing includes a bias portion and an elastic claw portion. The bias portion is provided to press the sensor against one of the top surface and the bottom surface provided in the at least one of the battery cells by utilizing a reaction force generated by pressing the thermistor cover portion. The elastic claw portion has a width larger than the distance between the pair of thermistor receiving segments when the elastic claw portion is in a free state.

Description

technical field [0001] The present invention relates to a battery module, the battery module includes: a plurality of battery units, the battery unit has a top surface, a bottom surface, a pair of main cooling surfaces and a pair of side surfaces, and the plurality of battery units are cooled by the main cooling a plurality of brackets of the same shape are sandwiched between the main cooling surfaces of the plurality of stacked battery cells; a thermistor is connected to the plurality of battery cells. At least one of the two battery cells is inserted and held in the thermistor holding part of the bracket, and the cooling medium flowing in from one side of the pair of side surfaces flows along the pair of main cooling surfaces. After that, it flows out from the other side of the pair of sides. Background technique [0002] In the following patent document 1, it is known that a plurality of battery cells are stacked with separators (frames) interposed between them, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M10/48H01M10/613H01M10/625H01M10/647H01M10/6557H01M10/60H01M10/617H01M10/6551H01M10/6561H01M50/209H01M50/227H01M50/569
CPCH01M2220/20Y02E60/12H01M10/482H01M10/5059H01M10/5004H01M10/5016H01M10/5032H01M10/486H01M2/1077H01M10/625H01M10/647H01M10/6557H01M10/613Y02E60/10H01M50/209H01M50/227H01M50/569
Inventor 栗田知美
Owner HONDA MOTOR CO LTD
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