# US 12,109,676 B2 · Battery adapter assembly and hand-held power tool

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- Number: US 12,109,676 B2
- Document ID: US12109676B2
- Status: Granted
- Kind: B2
- Application number: 17/765,673
- Filed: 2020-10-01
- Published: 2022-10-27
- Granted: 2024-10-08
- Earliest claimed: 2019-10-02
- Assignees: Husqvarna AB
- Applicants: Husqvarna AB
- Inventors: Johan Hjelm; Pär Martinsson; Filip Stenow
- Web page: https://patentgrep.com/patent/US12109676B2

## CPC

- B25F 5/02: Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)}
- H01M 50/267: having means for adapting to batteries or cells of different types or different sizes
- H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop
- Y02E 60/10: Energy storage using batteries
- B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)}
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A battery adapter assembly (1) is disclosed for an electrically driven hand-held power tool (3). The battery adapter assembly (1) comprises a battery adapter (5) configured to be connected to a battery connection interface (7) of the power tool (3), and a power cord (9) comprising a first end (11) connected to the battery adapter (5) and a second end (12) for connection to a power supply (27). The power cord (9) comprises at least a first fixation element (21) configured to fixate the power cord (9) to a cord holding arrangement (15) of the power tool (3). The present disclosure further relates to a hand-held power tool (3).

## Claims

### Claim 1

A battery adapter assembly for an electrically driven hand-held power tool, wherein the battery adapter assembly comprises:
a battery adapter configured to be connected to a battery connection interface of the power tool, and
a power cord comprising a first end connected to the battery adapter and a second end for connection to a power supply,
wherein the power cord comprises at least a first fixation element configured to fixate the power cord to a cord holding arrangement of the power tool,
wherein the power cord comprises a second fixation element arranged at a distance from the first fixation element along the power cord so as to form a power cord section between the first and second fixation elements, and
wherein the first fixation element is arranged to abut against a first end portion of the cord holding arrangement and the second fixation element is arranged to abut against a second end portion of the cord holding arrangement.

### Claim 2 (depends on 1)

The battery adapter assembly according to claim 1, wherein the cord holding arrangement comprises a groove.

### Claim 3 (depends on 2)

The battery adapter assembly according to claim 2, wherein the power cord section is configured to be held by the cord holding arrangement of the power tool.

### Claim 4 (depends on 3)

The battery adapter assembly according to claim 3, wherein the first fixation element or the second fixation element is frustoconical.

### Claim 5 (depends on 3)

The battery adapter assembly according to claim 3, wherein the power cord section is configured to be inserted into the groove.

### Claim 6 (depends on 1)

The battery adapter assembly according to claim 1, wherein the battery adapter comprises a mechanical key arrangement configured to allow connection of the battery adapter only to certain types of battery connection interfaces of power tools.

### Claim 7 (depends on 6)

The battery adapter assembly according to claim 6, wherein the mechanical key arrangement is configured to allow connection of the battery adapter only to battery connection interfaces of power tools having an electric power consumption below a predetermined electric power consumption.

### Claim 8 (depends on 1)

The battery adapter assembly according to claim 1, wherein a second end of the power cord comprises a connector for connecting the power cord to a battery, and wherein the battery is adapted to be carried on a body of a user.

### Claim 9

A battery adapter assembly for an electrically driven hand-held power tool, wherein the battery adapter assembly comprises:
a battery adapter configured to be connected to a battery connection interface of the power tool, and
a power cord comprising a first end connected to the battery adapter and a second end for connection to a power supply,
wherein the power cord comprises at least a first fixation element configured to fixate the power cord to a cord holding arrangement of the power tool,
wherein the cord holding arrangement comprises a groove,
wherein the power cord comprises a second fixation element arranged at a distance from the first fixation element along the power cord so as to form a power cord section between the first and second fixation elements, and wherein the power cord section is configured to be held by the cord holding arrangement of the power tool, and
wherein the second fixation element is slidably attached to the power cord and is biased along the power cord in a direction towards the first fixation element.

### Claim 10 (depends on 9)

The battery adapter assembly according to claim 9, wherein the power cord comprises a spring element configured to bias the second fixation element along the power cord in a direction towards the first fixation element.

### Claim 11 (depends on 10)

The battery adapter assembly according to claim 10, wherein the power cord comprises a stopper rigidly attached to the power cord, and wherein the spring element is arranged to apply the biasing force between the stopper and the second fixation element, and wherein the spring element is a coil spring.

### Claim 12 (depends on 11)

The battery adapter assembly according to claim 11, wherein the spring element has a smaller pitch in a region of the second fixation element than in a region of the stopper.

### Claim 13

A hand-held power tool comprising:
a tool,
an electric motor configured to power the tool, and
a battery connection interface configured to receive a battery adapter of a battery adapter assembly for transmitting electricity to the electric motor via the battery adapter assembly,
and wherein the power tool comprises a cord holding arrangement configured to hold a power cord section of a power cord of the battery adapter assembly, and
wherein the power cord of the battery adapter assembly enters the cord holding arrangement at a first end portion of the cord holding arrangement disposed proximate to the battery connection interface and exits the cord holding arrangement at a second end portion of the cord holding arrangement disposed at a rear portion of the power tool facing away from the tool.

### Claim 14 (depends on 13)

The power tool according to claim 13, wherein the cord holding arrangement comprises a groove, wherein the cord holding arrangement comprises a first and a second end portion, and wherein at least one of the first and second end portions is configured to receive a fixation element of the power cord.

### Claim 15 (depends on 14)

The power tool according to claim 14, wherein at least one of the first and second end portions is funnel-shaped.

### Claim 16 (depends on 13)

The power tool according to claim 13, wherein the power tool comprises a first handle unit comprising a first grip portion, and wherein the cord holding arrangement is arranged on the first handle unit.

### Claim 17 (depends on 16)

The power tool according to claim 16, wherein the first handle unit comprises a shield section arranged at a distance from the first grip portion, and wherein the cord holding arrangement is arranged on the shield section.

### Claim 18 (depends on 17)

The power tool according to claim 17, wherein the cord holding arrangement is arranged on a side of the shield section facing away from the first grip portion.

### Claim 19 (depends on 18)

The power tool according to claim 18, wherein the first grip portion comprises a throttle actuator arranged on a side of the first grip portion facing the shield section.

### Claim 20 (depends on 16)

The power tool according to claim 16, wherein the first handle unit is a rear handle unit arranged at a rear portion of the power tool facing away from the tool.

### Claim 21 (depends on 16)

The power tool according to claim 16, wherein the power tool comprises a main body comprising the electric motor, and wherein the first handle unit is pivotally attached to the main body.

### Claim 22 (depends on 21)

The power tool according to claim 21, wherein the first handle unit is pivotally attached to the main body between a first and a second end position, and wherein the angle between the first and second end positions is at least 90 degrees.

### Claim 23 (depends on 16)

The power tool according to claim 16, wherein the power tool comprises a second handle unit arranged at a position of the power tool between the first handle unit and the tool.
