Adapter and power tool system

Patent metadata

Field	Value
Publication number	US-11679488-B2
Application number	US-202017120134-A
Country	US
Kind code	B2
Filing date	Dec 12, 2020
Priority date	Dec 12, 2019
Publication date	Jun 20, 2023
Grant date	Jun 20, 2023

Abstract

An adapter for connecting a multi-voltage battery pack to a power tool, the multi-voltage battery pack provided with a multi-voltage battery interface and configured to output at least two different voltages, the power tool provided with a power tool interface and detachable coupled with a single voltage battery pack, the multi-voltage battery interface being not coupleable to the power tool interface, the adapter has a housing, an input port disposed in the housing and provided for electrically and mechanically coupling with the multi-voltage battery interface of the multi-voltage voltage battery pack, an output port disposed in the housing and provided for electrically and mechanically coupling with the power tool interface of the power tool, the input port electrically connected with the output port, wherein the power tool can be powered by the multi-voltage battery pack via the adapter.

First claim

What is claimed is:

1. An adapter for connecting a multi-voltage battery pack to a power tool, the multi-voltage battery pack provided with a multi-voltage battery interface and configured to output at least two different voltages, the power tool provided with a power tool interface and detachably coupled with a single voltage battery pack, the single voltage battery pack configured to output only one voltage, the multi-voltage battery interface of the multi-voltage battery pack being not couplable to the power tool interface of the power tool, the adapter comprising:
a housing;
an input port disposed in the housing and provided for electrically and mechanically coupling with the multi-voltage battery interface of the multi-voltage battery pack; and
an output port disposed in the housing an provided for electrically and mechanically coupling with the power tool interface of the power tool, the output port electrically connected with the input port;
wherein the power tool can be powered by the multi-voltage battery pack when the multi-voltage battery interface of the multi-voltage battery pack is coupled with the input port of the adapter and the power tool interface of the power tool is coupled with the output port of the adapter, wherein the input port is provided with a switching mechanism matched with the multi-voltage battery interface of the multi-voltage battery pack so as to change the output voltage of the multi-voltage battery pack by changing the connection state of the switching mechanism between a series or parallel supply of voltage from the multi-voltage battery interface.

2. The adapter according to claim 1 , wherein the multi-voltage battery pack comprises a first string of battery cells and a second string of battery cells, and the multi-voltage battery interface comprises a first positive terminal connected with a positive electrode of the first string of battery cells, a first negative terminal connected with a negative electrode of the first string battery cells, a second positive terminal connected with a positive electrode of the second string of battery cells and a second negative terminal connected with a negative electrode of the second string of battery cell; the input port comprises a first input terminal, a second input terminal, a third input terminal and a fourth input terminal which are respectively detachably matched with the first positive terminal, the first negative terminal, the second positive terminal and the second negative terminal; the second input terminal and the third input terminal are electrically connected, the multi-voltage battery pack outputs a series voltage when the multi-voltage battery interface of the multi-voltage battery pack engages with the input port of the adapter.

3. The adapter according to claim 1 , wherein the housing forms an inserting slot on a side thereof away from the output port, and the multi-voltage battery interface of the multi-voltage battery pack slides into the inserting slot.

4. The adapter according to claim 1 , wherein the output port is provided with a full-proof mechanism, and the power tool interface of the power tool is provided with an auxiliary mechanism matchable with the full-proof mechanism.

5. The adapter according to claim 4 , wherein the full-proof mechanism is a protrusion, and the auxiliary mechanism is a groove matched with the protrusion.

6. The adapter according to claim 1 , further comprises a latching mechanism mounted on the housing; the housing is provided with a receiving cavity; the latching mechanism is provided with a latching arm and a pressing arm, the latching arm is partially received in the receiving cavity and partially protrudes out of the receiving cavity, the pressing arm partially protrudes out of the receiving cavity and is linked with the latching arm; when the pressing arm is pressed, the latching arm enters into the receiving cavity.

7. The adapter according to claim 6 , wherein the latching mechanism also comprises an elastic element matched with the pressing arm or the latching arm; the elastic element is elastically deformed when the pressing arm is released; and the pressing arm or the latching arm resets under an action of the elastic element when the pressing arm is pressed.

8. A power tool system, comprising:
a power tool provided with a power tool interface for coupling with a single voltage battery pack, the single voltage battery pack can output only one voltage;
a multi-voltage battery pack provide with a multi-voltage battery interface and configured to output at least two different voltages, the multi-voltage battery interface being not couplable with the power tool interface;
an adapter, the adapter comprising:
a housing;
an input port disposed in the housing and provided for electrically and mechanically coupling with the multi-voltage battery interface of the multi-voltage battery pack; and
an output port disposed in the housing an provided for electrically and mechanically coupling with the power tool interface of the power tool, the output port electrically connected with the input port;

wherein the power tool can be powered by the multi-voltage battery pack when the multi-voltage battery interface of the multi-voltage battery pack is coupled with the input port of the adapter and the power tool interface of the power tool is coupled with the output port of the adapter, wherein the input port is provided with a switching mechanism matched with the multi-voltage battery interface of the multi-voltage battery pack so as to change the output voltage of the multi-voltage battery pack by changing the connection state of the switching mechanism between a series or parallel supply of voltage from the multi-voltage battery interface.

9. The power tool system according to claim 8 , wherein the multi-voltage battery pack comprises a first string of battery cells and a second string of battery cells, and the multi-voltage battery interface comprises a first positive terminal connected with a positive electrode of the first string of battery cells, a first negative terminal connected with a negative electrode of the first string battery cells, a second positive terminal connected with a positive electrode of the second string of battery cells and a second negative terminal connected with a negative electrode of the second string of battery cell; the input port comprises a first input terminal, a second input terminal, a third input terminal and a fourth input terminal which are respectively detachably matched with the first positive terminal, the first negative terminal, the second positive terminal and the second negative terminal; the second input terminal and the third input terminal are electrically connected, the multi-voltage battery pack outputs a series voltage when the multi-voltage battery interface of the multi-voltage battery pack engages with the input port of the adapter.

10. The power tool system according to claim 8 , wherein the output port of the adapter is provided with a full-proof mechanism, and the power tool interface of the power tool is provided with an auxiliary mechanism matchable with the full-proof mechanism.

11. The power tool system according to claim 8 , wherein the adapter has a latching mechanism mounted on the housing; the housing is provided with a receiving cavity; the latching mechanism is provided with a latching arm and a pressing arm, the latching arm is partially received in the receiving cavity and partially protrudes out of the receiving cavity, the pressing arm partially protrudes out of the receiving cavity and is linked with the latching arm; when the pressing arm is pressed, the latching arm enters into the receiving cavity.

Assignees

• Globe Jiangsu Co Ltd

Inventors

• Huang Lei
• Guo Xinzhong
• Yan An

Classifications

• H02J7/731 Primary

  specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence) · CPC title

• H02J7/751

  concerning the insertion or the connection of the batteries · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• B25F5/02 Primary

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title

• H02J7/0044

  Electricity · mapped topic