Battery holder, battery receiving case, battery pack, electricity accumulation system, electronic instrument, electric vehicle, and electric power system

• US 10,195,957 B2
• Filed: 06/26/2017
• Issued: 02/05/2019
• Est. Priority Date: 09/28/2011
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Murata Manufacturing Co Limited
• Inventors: Kano, Hiroshi
• Primary Examiner(s): Fantu, Yalkew
• Assistant Examiner(s): Sharief, Mohammed J
• Application Number:
  US15/632,554
• Publication Number:
  US 20170291502A1
• Time in Patent Office: 589 Days
• Field of Search: 320112, 429100
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 55/00 Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
• CPC Class Codes: B60L 58/21 having the same nominal voltage
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 2200/00 Safety devices for primary or secondary batteries
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 50/213 adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: H01M 50/24 adapted for protecting batteries from their environment, e.g. from corrosion thermal insulation H01M10/658
• CPC Class Codes: H01M 50/242 adapted for protecting batteries against vibrations, collision impact or swelling
• CPC Class Codes: H01M 50/249 specially adapted for aircraft or vehicles, e.g. cars or trains constructional details of batteries specially adapted for electric vehicles B60L50/64
• CPC Class Codes: H01M 50/289 characterised by spacing elements or positioning means within frames, racks or packs spacing elements inside cells other than separators, membranes or diaphragms H01M50/471
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/34 Parallel operation in networks using both storage and other dc sources, e.g. providing buffering H02J7/14 takes precedence
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y04S 10/126 : the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]

Abstract

There is provided a battery holder including: a plurality of battery cell receiving sections for receiving a battery cell. A deformation section elastically deformed depending on transmission of external impact, and a space section for allowing the deformation section to be elastically deformed are formed between a peripheral surface of one battery cell receiving section and a peripheral surface of another battery cell receiving section.

Claims

1. A battery pack, comprising:

a plurality of battery cells;

a battery holder configured to receive the plurality of battery cells, wherein the battery holder comprises;

at least a first battery cell receiving section and a second battery cell receiving section; and

a projection between the first battery cell receiving section and the second battery cell receiving section; and

a battery receiving case configured to receive the battery holder,

wherein an inner surface of the battery receiving case comprises a deformation section that comes into contact with the projection, and

wherein the deformation section comprises;

a first protrusion;

a second protrusion,

wherein the first protrusion and the second protrusion are bent so that a first end surface of the first protrusion faces a second end surface of the second protrusion;

a facing gap between the first protrusion and the second protrusion; and

a cavity section that communicates with the facing gap, wherein the first protrusion and the second protrusion are elastically deformable in a direction toward the cavity section.

2. The battery pack according to claim 1, wherein the deformation section is configured to elastically deform based on an external impact.

3. The battery pack according to claim 1, wherein the deformation section is further configured to elastically deform from inside of the battery receiving case toward outside of the battery receiving case.

4. The battery pack according to claim 1,

wherein the battery receiving case comprises a first case and a second case, and

wherein the deformation section is present at an inner surface of at least one of the first case or the second case.

5. The battery pack according to claim 1, wherein the plurality of battery cells are configured to charge by an electricity accumulation system.

6. A battery receiving case, comprising:

a battery holder that comprises;

at least a first battery cell receiving section and a second battery cell receiving section; and

a projection between the first battery cell receiving section and the second battery cell receiving section,

wherein an inner surface of the battery receiving case comprises a deformation section that comes into contact with the projection, and

wherein the deformation section comprises;

a first protrusion;

a second protrusion,

wherein the first protrusion and the second protrusion are bent so that a first end surface of the first protrusion faces a second end surface of the second protrusion;

a facing gap between the first protrusion and the second protrusion; and

a cavity section that communicates with the facing gap, wherein the first protrusion and the second protrusion are elastically deformable in a direction toward the cavity section.

7. The battery receiving case according to claim 6, wherein the deformation section is configured to elastically deform based on an external impact.

8. The battery receiving case according to claim 6, wherein the deformation section is further configured to elastically deform from inside of the battery receiving case toward outside of the battery receiving case.

9. The battery receiving case according to claim 6, further comprising:

a first case and a second case,

wherein the deformation section is present at an inner surface of at least one of the first case or the second case.

10. An electronic instrument, comprising a battery pack,

wherein the battery pack comprises:

a plurality of battery cells;

a battery holder configured to receive the plurality of battery cells, wherein the battery holder comprises;

at least a first battery cell receiving section and a second battery cell receiving section; and

a projection between the first battery cell receiving section and the second battery cell receiving section; and

a battery receiving case configured to receive the battery holder,

wherein an inner surface of the battery receiving case comprises a deformation section that comes into contact with the projection, and

wherein the deformation section comprises;

a first protrusion;

a second protrusion,

wherein the first protrusion and the second protrusion are bent so that a first end surface of the first protrusion faces a second end surface of the second protrusion;

a facing gap between the first protrusion and the second protrusion; and

a cavity section that communicates with the facing gap, wherein the first protrusion and the second protrusion are elastically deformable in a direction toward the cavity section.

11. An electric vehicle, comprising a battery pack,

wherein the battery pack comprises:

a plurality of battery cells;

a battery holder configured to receive the plurality of battery cells,

wherein the battery holder comprises;

at least a first battery cell receiving section and a second battery cell receiving section; and

a projection between the first battery cell receiving section and the second battery cell receiving section; and

a battery receiving case configured to receive the battery holder,

wherein an inner surface of the battery receiving case comprises a deformation section that comes into contact with the projection, and

wherein the deformation section comprises;

a first protrusion;

a second protrusion,

wherein the first protrusion and the second protrusion are bent so that a first end surface of the first protrusion faces a second end surface of the second protrusion;

a facing gap between the first protrusion and the second protrusion; and

a cavity section that communicates with the facing gap, wherein the first protrusion and the second protrusion are elastically deformable in a direction toward the cavity section.

12. The electric vehicle according to claim 11, further comprising a conversion device configured to:

receive an electric power from the battery pack; and

convert the electric power into a driving force of the electric vehicle.

13. The electric vehicle according to claim 11, further comprising a control device configured to control the electric vehicle based on information about the battery pack.