Split-type battery power supply device and split-type power supply system having the same

Abstract

A split-type battery-powered device includes an adapter attachable to a battery mounting portion of a power tool, an adapter connectable to a battery pack, and a power cord connecting the adapter and the adapter, wherein the power cord is connected to a retaining member near the end of the adapter for retaining the power cord to the adapter, wherein the retaining member has a rotating portion that can rotate about a rotating axis, and the outer wall of the rotating portion is provided with a plurality of circumferentially arranged positioning notches; the split-type battery-powered device also includes an adjustment member connected to the adapter, the adjustment member including an actuator that enters one of the plurality of positioning notches to stop the rotation of the retaining member, and the adjustment member can be operatively moved to disengage the actuator from the positioning notch. Such a split-type battery-powered device and system takes into account both flexibility and regularity and strikes a balance between the two, overcoming the shortcomings of the prior art.

Description

[Technical field]

[0001] The invention relates to a split-type battery power supply device and a split-type power supply system having the device. [Background Technology]

[0002] With the increasing maturity of lithium-ion battery technology, the use of lithium-ion power tools is becoming increasingly common. The batteries that power these tools are typically directly connected to the tool itself. However, the user experience of some power tools is strongly correlated with their overall weight, especially with high-power handheld power tools, which can cause noticeable fatigue when used continuously.

[0003] Therefore, split battery adapters, such as backpack and waist-mounted batteries, have emerged. Using a battery adapter shifts the weight of the battery pack to the user's back or waist, reducing the overall weight of the handheld power tool and significantly reducing the weight on the user's hands. In this case, the lithium-ion DC power tool is connected to the power cord via the adapter. While battery adapters are generally compatible with most tools on the same platform, the battery pack connection orientation varies significantly between tools. This results in frequent bending and premature failure of the power cord after using the battery adapter.

[0004] In order to solve the problem of the power cord being easily bent and failing, a solution that allows the power cord to swing around the adapter has appeared in the prior art. However, a power cord that is continuously swinging and not fixed can easily interfere with the user's normal operation.

[0005] In view of this, it is indeed necessary to provide an improved split-type battery power supply device to overcome the defects of the prior art. [Summary of the invention]

[0006] In view of the shortcomings of the prior art, the present invention aims to provide a split battery power supply device that allows the power cord to swing and can be fixed in a specific position.

[0007] The technical solution adopted by the present invention to solve the existing technical problems is: a split battery power supply device, including an adapter that can be attached to the battery mounting part of the power tool, an adapter that can be connected to the battery pack, and a power cord connecting the adapter and the adapter, wherein the power cord is connected to a retaining member that holds the power cord to the adapter at the end near the adapter, wherein the retaining member has a rotating portion that can rotate around a rotating axis, and the outer wall of the rotating portion is provided with a plurality of positioning notches arranged along the circumferential direction; the split battery power supply device also includes an adjusting member connected to the adapter, the adjusting member includes an executing member, the executing member enters one of the plurality of positioning notches to stop the rotation of the retaining member, and the adjusting member can be operably moved to disengage the executing member from the positioning notch.

[0008] A further improved solution is that the adjustment member is rotatably disposed in the adapter around a pivot, and the pivot is parallel to the rotation axis.

[0009] A further improved solution is that the adjusting member includes an operating portion at least partially exposed to the adapter for operation, and the operating portion and the executing portion are respectively located at two ends of the adjusting member relative to the pivot.

[0010] A further improved solution is: the split battery power supply device further includes an elastic member disposed between the operating portion and the pivot, the elastic member biasing the adjusting member so that the executing portion has a movement tendency to maintain entering the positioning notch.

[0011] A further improved solution is: the adapter includes a lower shell that accommodates the retaining member, the elastic member is a compression spring, and the compression spring is provided between the operating portion and the lower shell.

[0012] A further improved solution is that the adjusting member is a lever that rotates around the pivot, and the executing portion is located at an end of the lever and extends downward from the end to form a contact tongue.

[0013] A further improvement is that the contact tongue and the positioning notch are both provided with chamfers at the contacting portions.

[0014] A further improvement is that the rotating part is provided with three positioning notches along the circumferential direction, and the angle between the three positioning notches and the line connecting the center of the rotating shaft is not greater than 180 degrees at most and not less than 30 degrees at least.

[0015] A further improvement scheme is: a PCB board and a cable connected to the PCB board are provided in the split battery power supply device, a receiving space for accommodating the cable is provided in the rotating part, and the retaining member also includes a lead-out part connected to the rotating part, and the inner diameter of the lead-out part is not less than the maximum diameter of the power cord.

[0016] The present invention also provides a split battery power supply system, comprising a battery pack and a split battery power supply device connected to the battery pack via a power cord, wherein the split battery power supply device has the same external connection structure as the battery pack, wherein the split battery power supply device is any of the split battery power supply devices described above.

[0017] Compared with the prior art, the present invention has the following beneficial effects: in the split-type battery-powered device provided in the present application and the system having the same, the adjusting member and the retaining member can be detachably engaged through the execution portion and the positioning notch, so that the retaining member drives the power cord to rotate within a certain angle range relative to the adapter, ensuring the flexibility of the adapter and enabling it to adapt to power tools with different battery pack insertion directions without causing the power cord to break or fail; and, after adjusting to the appropriate angle, the retaining member can be fixed, which also avoids the trouble caused to the user by the continuous shaking of the power cord. Such a split-type battery-powered device and system takes into account flexibility and regularity and masters the balance between the two, overcoming the defects of the prior art. [Brief Description of the Drawings]

[0018] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0019] Figure 1 is a three-dimensional schematic diagram of a split-type battery power supply device according to a preferred embodiment of the present invention;

[0020] Figure 2 yes Figure 1 The front view of the split battery-powered device shown in another state;

[0021] Figure 3 yes Figure 1 The schematic diagram of the structure of the split battery-powered device with the top cover removed is shown;

[0022] Figure 4 yes Figure 1 A schematic diagram of a portion of the structure of the split battery-powered device shown;

[0023] Figure 5 yes Figure 1 A schematic diagram of another part of the structure of the split battery power supply device shown;

[0024] Figure 6 yes Figure 5 A schematic structural diagram of another part of the structure shown in another state.

[0025] The meaning of the reference numerals in the figures:

[0026] 100, adapter 1, main body 11, top cover

[0027] 111. Mating surface

[0028] 12. Lower housing 13. PCB board 14. Accommodation housing 15. Locking piece 121, supporting rib

[0029] 200, power cord 2, holder 21, rotating part

[0030] 210, positioning notch 22, lead-out portion 23, cable

[0031] 3. Adjustment part 31. Execution part

[0032] 310, contact tongue 32, operating portion 33, compression spring

[0033] 34. Middle part 35. Accommodation cavity [Specific implementation method]

[0034] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. For example, terms such as "upper," "lower," "front," and "rear" indicating orientation or positional relationships are based solely on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the disclosure. They do not indicate or imply that the device or element referred to must have a specific orientation or be constructed or operated in a specific orientation. Therefore, they should not be construed as limiting the disclosure.

[0035] See also Figures 1 to 5 As shown, a split battery-powered device involved in a preferred embodiment of the present invention includes an adapter 100 that can be attached to the battery mounting part of the power tool, an adapter that can be connected to the battery pack (not shown in the figure), and a power cord 200 connecting the adapter and the adapter 100, wherein the power cord 200 is connected to a retaining member 2 that holds the power cord 200 to the adapter 100 at the end near the adapter 100, and the retaining member 2 has a rotating portion 21 that can rotate around a rotating axis, and the outer wall of the rotating portion 21 is provided with a plurality of positioning notches 210 arranged along the circumferential direction; the split battery-powered device also includes an adjusting member 3 connected to the adapter 100, the adjusting member 3 includes an executing portion 31, the executing portion 31 enters one of the plurality of positioning notches 210 to stop the holding member 2 from rotating, and the adjusting member 3 can be operably moved to disengage the executing portion 31 from the positioning notch 210.

[0036] In the split-type battery-powered device provided in this embodiment, the adjustment member 3 and the retaining member 2 are detachably engaged through the actuator 31 and the positioning notch 210, so that the retaining member 2 drives the power cord 200 to rotate within a certain angle range relative to the adapter 100, ensuring the flexibility of the adapter 100 and enabling it to adapt to power tools with different battery pack insertion directions without causing the power cord 200 to break or fail. Moreover, after adjusting to the appropriate angle, the retaining member 2 can be fixed, also avoiding the trouble caused to the user by the continuous shaking of the power cord 200. Such a split-type battery-powered device takes into account flexibility and regularity and masters the balance between the two, solving the problems of the prior art.

[0037] Specifically, see Figure 1 、 Figure 2 and Figure 4 As shown, the adapter 100 includes a main body 1, which includes a top cover 11 and a lower housing 12. The top cover 11 is provided with a mating surface 111 that mates with the battery mounting portion of the power tool. The lower housing 12 defines an open receiving space, which houses a PCB board 13, a receiving housing 14 that supports the PCB board 13, a cable 23 connected to the PCB board 13, an adapter locking member 15 partially exposed outside the main body 1, and an adjustment member 3 and a retaining member 2 related to the present invention. The retaining member 2 includes a rotating portion 21 that rotates about a rotation axis and a lead-out portion 22 that communicates with the rotating portion 21. The rotating portion 21 is cylindrical and has a receiving space therein for the cable 23. In this embodiment, there are three cables 23 connected to the PCB board 13, namely a positive line, a negative line and a signal line. These three cables 23 converge into the rotating part 21 from different positions and are combined into a power line 200 extending from the lead-out part 22. The inner diameter of the lead-out part 22 is not less than the maximum diameter of the power line 200, so that the power line 200 can pass through.

[0038] exist Figure 2 In the illustrated embodiment, an inwardly concave arc-shaped cavity is formed below the housing 14 that supports the PCB 13. Support ribs 121 are also provided within the lower housing 12 of the main body 1. The housing 14 and support ribs 121 are connected via fasteners, forming a cylindrical cavity with an inner diameter greater than the outer diameter of the rotating portion 21. In this embodiment, the support ribs 121 are located on the side of the lower housing 12. In other words, the retaining member 2 is retained within the main body 1 by the restraint of the support ribs 121 and can rotate about a rotation axis. The rotation axis is perpendicular to the insertion direction of the mating surface 111.

[0039] See Figure 3-Figure 6 The rotating portion 21 is provided with a plurality of positioning notches 210 at both ends. Correspondingly, the adjusting member 3 also includes two actuators 31 located on either side of the main body 1, and the two actuators 31 are connected by a middle portion 34. Of course, in other embodiments, only one actuator 31 may be provided, and the actuator 31 may be located at one side or in the middle of the main body 1.

[0040] See also Figures 1 to 3 As shown, the adjusting member 3 is rotatably mounted within the adapter 100 about a pivot axis parallel to the rotation axis. The adjusting member 3 rotates about the pivot axis, meaning that the adjusting member 3 can be considered a lever, with the actuator 31 located at one end and the user-operated operating portion 32 located at the other end. In this embodiment, the operating portion 32 is connected to the intermediate portion 34, and the intermediate portion 34, actuator 31, and operating portion 32 are integrally injection-molded to form the adjusting member 3.

[0041] Combine Figure 1-Figure 3 、 Figure 5-Figure 6 As shown, the operating portion 32 is at least partially exposed within the adapter 100 to facilitate user operation. The operating portion 32 and the actuator 31 are located at opposite ends of the adjusting member 3 relative to the pivot axis. The operating portion 32 is connected to the center of the intermediate portion 34 and is constructed in a Z-shape, with the operating plane lower than the rest of the adjusting member 3. This allows for adaptation to the spatial structure within the main body 1 and facilitates user force application. The adjusting member 3 is integrally disposed within the main body 1, located at the bottom of the adapter's latch 15. The adapter latch 15 is provided with an undercut for mating with a slot on the power tool's mating portion. Alternatively, when the adapter 100 needs to be released, the latch 15 can be pressed to disengage the undercut from the slot on the power tool's mating portion.

[0042] See also Figure 5 、 Figure 6 As shown, the split-type battery-powered device further includes an elastic member disposed between the operating portion 32 and the pivot. This elastic member biases the adjusting member 3, causing the actuator 31 to maintain its position within the positioning notch 210. The provision of the elastic member causes the adjusting member 3 to actively constrain the retaining member 2. Under normal circumstances, the retaining member 2 is fixed at one angular position and prevents free rotation. Only when the adapter 100 is to be connected to a power tool with a different insertion orientation is the adjusting member 3 operated to cause the actuator 31 to exit the current positioning notch 210 and re-enter a new positioning notch 210 after the retaining member 2 has rotated a certain angle.

[0043] Continue to see Figure 5 、 Figure 6 As shown, the elastic member is a compression spring 33. A receiving cavity 35 for receiving the compression spring 33 is provided at the junction of the operating portion 32 and the intermediate portion 34. One end of the compression spring 33 abuts the receiving cavity 35, and the other end abuts the lower housing (not shown). Of course, in other alternative embodiments, the elastic member can also be a tension spring.

[0044] As previously described, the adjustment member 3 is a lever that rotates about the pivot axis. The actuator 31 is located at the end of the lever and extends downward from the end to form a contact tongue 310 that can enter the positioning notch 210. The contact tongue 310 forms a certain angle with the lever body of the adjustment member 3 to better fit the positioning notch 210.

[0045] The contact area between the contact tongue 310 and the positioning notch 210 is chamfered. This chamfer allows the user to forcefully rotate the retaining member 2 to cause the positioning notch 210 to rotate, overcoming the limit of the actuator 31, without pressing the operating portion 32, thereby avoiding damage to the actuator 31.

[0046] See also Figure 1 、 Figure 4 、 Figure 5 As shown, the rotating portion 21 is provided with three positioning notches 210 along its circumference, and the angle between the three positioning notches 210 and the axis of rotation is no greater than 180 degrees and no less than 30 degrees. This allows the holder 2 to have three angular positions relative to the adapter 100. These three positions can be set according to different circumstances and will not be further described here.

[0047] See also Figure 5 、 Figure 6 In order to show the matching relationship between the adjustment part 3 and the retaining part 2, other parts are hidden. Figure 5 In the state shown, the angle between the lead-out portion 22 and the adapter body is 90°. In this case, the adapter adapts to the connection angle of one power tool. When the adapter needs to be matched with a power tool with another connection angle, as shown in FIG. Figure 6 As shown, the user only needs to press the operating portion 32 downward to rotate the adjustment member 3 about the pivot, thereby causing the actuator 31 to move in the opposite direction of the operating portion 32 and exit the original positioning notch 210. The user then rotates the retaining member 2 to rotate the guide portion 22 about the rotation axis to a suitable position. The user then releases the operating portion 32. The operating portion 32 moves upward under the elastic restoring force of the compression spring 33, while the actuator 31 rotates downward about the pivot and enters the new positioning notch 210. Of course, due to the chamfered design of the positioning notch 210 and the contact tongue 310, the user can also release the operating portion 32 if the appropriate position is not determined. During the rotation of the rotating portion 21, the operating portion 32 slides relative to the outer wall of the rotating portion 21 until it falls into the next positioning notch 210.

[0048] In addition, this embodiment also provides a split battery power supply system, including a battery pack and a split battery power supply device connected to the battery pack via a power line 200, and the split battery power supply device has the same external connection structure as the battery pack.

[0049] In summary, this preferred embodiment provides a split battery power supply device and a split battery power supply system having the split battery power supply device. Due to the above-mentioned structural arrangement of the retaining member 2 and the adjusting member 3, the adapter 100 can be flexibly applied to more different forms of power tools, thereby improving the user's usage experience and operating feeling.

[0050] The present invention is not limited to the above specific embodiments. Those skilled in the art will readily appreciate that there are many alternatives to the adapter 100 of the present invention without departing from the principles and scope of the present invention. The scope of protection of the present invention shall be determined by the contents of the claims.

Claims

1. A split-type battery-powered device comprising an adapter attachable to a battery mounting portion of a power tool, an adapter connectable to a battery pack, and a power cord connecting the adapter and the adapter, wherein: The end of the power cord near the adapter is connected to a retaining member that holds the power cord to the adapter, characterized in that: the retaining member has a rotating part that can rotate around a rotating axis, and the outer wall of the rotating part is provided with a plurality of positioning notches arranged along the circumference; the split battery power supply device also includes an adjustment member connected to the adapter, the adjustment member includes an execution member, the execution member enters one of the plurality of positioning notches to stop the rotation of the retaining member, the adjustment member can be operably moved to disengage the execution member from the positioning notch, and the adjustment member can be rotatably arranged in the adapter around a pivot; the adjustment member includes an operating part that is at least partially exposed to the adapter for operation, and the split battery power supply device also includes an elastic member arranged between the operating part and the pivot, the elastic member biases the adjustment member so that the execution member has a movement tendency to maintain entering the positioning notch, and the elastic member is a compression spring.

2. The split-type battery power supply device according to claim 1, characterized in that: The pivot axis is parallel to the rotation axis.

3. The split-type battery power supply device according to claim 2, characterized in that: The operating portion and the executing portion are respectively located at two ends of the adjusting member relative to the pivot.

4. The split-type battery power supply device according to claim 3, characterized in that: The adapter includes a lower shell for accommodating the retaining member, and the compression spring is provided between the operating portion and the lower shell.

5. The split-type battery power supply device according to claim 4, characterized in that: The adjusting member is a lever that rotates around the pivot, and the executing portion is located at an end of the lever and extends downward from the end to form a contact tongue.

6. The split-type battery power supply device according to claim 5, characterized in that: The contact portions between the contact tongue and the positioning notch are both provided with chamfers.

7. The split-type battery power supply device according to claim 1, characterized in that: The rotating part is provided with three positioning notches along the circumferential direction, and the angle between the three positioning notches and the center line of the rotating shaft is no greater than 180 degrees at most and no less than 30 degrees at least.

8. The split-type battery power supply device according to claim 1, characterized in that: The split battery power supply device is provided with a PCB board and a cable connected to the PCB board, the rotating part is provided with a receiving space for accommodating the cable, and the retaining member also includes a lead-out part connected to the rotating part, and the inner diameter of the lead-out part is not less than the maximum diameter of the power cord.

9. A split battery power supply system, comprising a battery pack and a split battery power supply device connected to the battery pack via a power cord, the split battery power supply device having the same external connection structure as the battery pack, characterized in that: The split battery power supply device is the split battery power supply device described in any one of claims 1 to 8 above.

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