A portable power tool battery pack power taker

Abstract

The utility model provides a portable electric tool battery pack electricity taker, including casing, set up in the clamping groove of casing lower side with spacing piece connection and set up in the circuit conversion module for with battery pack electric connection and conversion to it in casing, the clamping groove is connected with the abutment piece of being able to abut spacing piece along the vertical direction sliding, the casing side wall swing setting has the drive block, be provided with the connecting assembly in the casing of connecting drive block with abutment piece and by drive block drive abutment piece along the vertical direction displacement, circuit conversion module includes setting up in the control circuit board of casing, set up on the multi -protocol boost -buck controller of circuit board, with a plurality of N channel field effect transistor of multi -protocol boost -buck controller connection and be used for voltage conversion inductor, a plurality of N channel field effect transistor constitutes Buck -Boost topology circuit. The utility model can realize quick dismounting and the efficient control and conversion to circuit.

Description

Technical Field

[0001] This utility model relates to the field of battery pack adapter equipment technology, and in particular to a portable power tool battery pack generator. Background Technology

[0002] With the development of power tools, portable power tools are increasingly used in various fields, such as industry, construction, and garden machinery. People's requirements for portable power tools are also getting higher and higher. Currently, most power tools are powered by battery packs. However, these battery packs can only be used with power tools and cannot power external electronic devices, which limits the application scenarios of the battery packs.

[0003] Currently, Chinese Patent Publication No. CN211405512U discloses an adapter, including an adapter interface; a DC interface, the output or input power of which is greater than 10W; the adapter also includes a voltage conversion circuit, a communication module, and a control module; the voltage conversion circuit is connected in series between the DC interface and the adapter interface, used to convert the power of an external power supply device into the power output of the adapter battery pack or to convert the power of the battery pack into the power output of the adapter external power device; the communication module is configured to send control signals to the control module according to the signal status of the DC interface; the control module is connected between the DC interface and the adapter interface, and is also connected to the voltage conversion circuit, and is configured to control the current direction and output voltage of the voltage conversion circuit according to the signal status of the DC interface and the adapter interface.

[0004] While this adapter expands the application scenarios of power tool battery packs, when installing the adapter on the battery pack, the limiting piece on the battery pack needs to be snapped into the corresponding slot in the adapter to ensure the reliability of the connection between the adapter and the battery pack. During installation, the connection between the adapter and the battery pack can be achieved simply by using the elastic limiting piece. However, during disassembly, due to the limited position of the circuit board inside the battery pack, it is difficult to quickly contact the limiting piece and the slot, making disassembly difficult. Moreover, the control of this adapter is relatively complex. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a portable power tool battery pack generator to solve the problems of inconvenient disassembly and cumbersome control in the prior art.

[0006] To achieve the above and other related objectives, this utility model provides a portable power tool battery pack generator, including a housing, a slot disposed on the lower side of the housing and connected to a limiting member, and a circuit conversion module disposed within the housing for electrically connecting to and converting the battery pack. A contact member capable of abutting the limiting member is slidably connected in the slot along the vertical direction. A driving block is movably disposed on the side wall of the housing. A connecting assembly is disposed within the housing, connecting the driving block and the contact member, and causing the contact member to move vertically by the driving block. The circuit conversion module includes a control circuit board disposed within the housing, a multi-protocol buck-boost controller disposed on the circuit board, multiple N-channel MOSFETs connected to the multi-protocol buck-boost controller, and an inductor for voltage conversion. The multiple N-channel MOSFETs constitute a Buck-Boost topology circuit.

[0007] By adopting the above technical solution, when the device is removed from the battery pack, the drive block can be moved, and with the cooperation of the connecting components, the drive block can move the contact plate in the slot, so that the contact plate can squeeze the limiting member of the battery pack from top to bottom, thereby causing the limiting member to disengage from the slot and contact the restriction on the shell, thus achieving rapid disassembly. Furthermore, by using a multi-protocol buck-boost controller in conjunction with an N-channel MOSFET and an inductor, efficient control and conversion of the circuit can be achieved.

[0008] In one embodiment of the present invention, the abutting member includes an abutting plate that slides vertically and is connected to the slot. The connecting assembly includes a flip plate that is rotatably connected to the upper side of the slot and can be flipped up and down, a slide rod that slides horizontally and is connected to the housing and fixedly connected to the driving block, and a connecting rod that is hinged to the slide rod and the flip plate respectively. The slide rod is fitted with an elastic member that is connected to the housing.

[0009] By adopting the above technical solution, pressing the drive block can drive the slide bar to slide horizontally, and under the transmission action of the connecting rod, the flip plate flips from top to bottom. The lower side of the flip plate drives the contact plate to move downward. After releasing the drive block, the flip plate can be reset under the action of the elastic element, so that multiple structures form a linkage mechanism. The transmission is simple and reliable, and only the drive block needs to be pressed when using it.

[0010] In one embodiment of this utility model, the flip plate is configured as an L-shaped structure, the inflection point of the flip plate is hinged to the shell, the upper end of the flip plate is hinged to the connecting part, and the lower end of the flip plate is slidably connected to the upper side of the contact plate in the horizontal direction.

[0011] By adopting the above technical solution, the L-shaped flip plate can make the flip plate move a longer distance from the contact plate, and make the lower end of the flip plate slide and connect with the contact plate in the horizontal direction, so that the contact plate slides more smoothly.

[0012] In one embodiment of the present invention, the housing includes an upper housing and a lower housing, the circuit board is disposed inside the upper housing, the slot is located inside the lower housing, and the flip plate, slide rod, and connecting rod are all disposed inside the lower housing.

[0013] By adopting the above technical solution, a modular design can be used, which is easier to assemble, will not affect the position of the circuit board, and makes the overall structure more compact.

[0014] In one embodiment of this utility model, the multi-protocol buck-boost controller is an IP2366 chip, which is connected via I... 2 The C interface monitors and controls the power path in real time.

[0015] By adopting the above technical solution and configuring the IP2366 chip as the main controller, intelligent control is achieved through I... 2 The C interface monitors and controls the power path in real time, enabling adaptive negotiation of protocols such as PD3.1 / QC4+, with a maximum output of 140W.

[0016] In one embodiment of this utility model, four N-channel MOSFETs are provided to integrate a four-switch Buck-Boost topology circuit, and the N-channel MOSFETs are model TPH1R403NL.

[0017] By adopting the above technical solution, four TPH1R403NL MOSFETs (Q1-Q4) constitute the power conversion core, forming a four-switch Buck-Boost topology circuit;

[0018] In one embodiment of the present invention, the circuit conversion module further includes an input interface connected to the battery pack and an output interface for connecting to external electrical equipment.

[0019] As described above, the portable power tool battery pack generator of this utility model has the following beneficial effects: when the device is removed from the battery pack, the drive block is moved, and with the cooperation of the connecting components, the drive block moves the contact plate in the slot, so that the contact plate can press the limiting member of the battery pack from top to bottom, thereby causing the limiting member to disengage from the slot and contact the restriction on the shell, thus achieving quick disassembly. Furthermore, the use of a multi-protocol buck-boost controller in conjunction with an N-channel MOSFET and an inductor enables efficient control and conversion of the circuit. Attached Figure Description

[0020] Figure 1 The diagram shown is a schematic representation of the battery pack disclosed in an embodiment of this utility model.

[0021] Figure 2 The diagram shows the overall structure disclosed in the embodiments of this utility model.

[0022] Figure 3 The diagram shown is an overall exploded structural schematic diagram disclosed in the embodiments of this utility model;

[0023] Figure 4 The image shown is a partial cross-sectional view of the lower housing disclosed in an embodiment of this utility model.

[0024] Figure 5 The circuit schematic diagram shown is disclosed in the embodiments of this utility model;

[0025] Component designation explanation

[0026] 1. Housing; 2. Card slot; 3. Circuit conversion module; 4. Contact element; 5. Driver block; 6. Connecting assembly; 7. Output interface;

[0027] 20. Flip plate; 21. Slide rod; 22. Connecting rod; 23. Elastic element; 24. Slide groove;

[0028] 30. Upper housing; 31. Lower housing; 32. Circuit board;

[0029] 100. Battery pack; 101. Limiting component. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0031] Please see Figures 1 to 5 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0032] like Figure 1 , Figure 2 , Figure 4 As shown, this utility model provides a portable power tool battery pack 100 power source, including a housing 1, a slot 2 disposed on the lower side of the housing 1 and connected to a limiting member 101, and a circuit conversion module 3 disposed inside the housing 1 for electrically connecting to and converting the battery pack 100.

[0033] The slot 2 is vertically connected to the contact member 4, which can abut against the limiting member 101. The side wall of the housing 1 is movably provided with a driving block 5. The housing 1 is provided with a connecting component 6 that connects the driving block 5 and the contact member 4 and drives the contact member 4 to move vertically.

[0034] like Figure 3 As shown, the abutment 4 includes an abutment plate that slides vertically and is connected to the slot 2. The connecting assembly 6 includes a flip plate 20 that is rotatably connected to the upper side of the slot 2 and can be flipped up and down, a slide rod 21 that slides horizontally and is connected to the housing 1 and fixedly connected to the drive block 5, and a connecting rod 22 that is hinged to the slide rod 21 and the flip plate 20 respectively. The slide rod 21 is sleeved with an elastic element 23 connected to the housing 1. The elastic element 23 is a spring. The elastic element 23 is sleeved on the slide rod 21, with one end fixedly connected to the inner wall of the housing 1 and the other end fixedly connected to the slide rod 21.

[0035] The flip plate 20 is configured as an L-shaped structure, with the long arm of the flip plate 20 located on the lower side and the short arm located on the upper side. The flip plate 20 is hinged to the housing 1 at the inflection point. The upper end of the short arm of the flip plate 20 is hinged to the connecting part. The lower end of the long arm of the flip plate 20 is slidably connected to the upper side of the contact plate in the horizontal direction. The driving block 5 is a button covered on the end of the slide rod 21. The upper side of the contact plate has a slide groove 24 that is slidably connected to the flip plate 20.

[0036] By pressing the drive block 5, the slide bar 21 can be moved horizontally, and under the transmission action of the connecting rod 22, the flip plate 20 is flipped from top to bottom. The lower side of the flip plate 20 drives the contact plate to move downward. After releasing the drive block 5, the flip plate 20 can be reset under the action of the elastic element 23, so that multiple structures form the connecting rod 22 mechanism. The transmission is simple and reliable, and only the drive block 5 needs to be pressed when using it.

[0037] like Figure 5 As shown, the circuit conversion module 3 includes a circuit board 32 disposed in the housing 1, a multi-protocol buck-boost controller disposed on the circuit board 32, a plurality of N-channel MOSFETs connected to the multi-protocol buck-boost controller, and an inductor for voltage conversion. The plurality of N-channel MOSFETs constitute a Buck-Boost topology circuit.

[0038] The multi-protocol buck-boost controller is an IP2366 chip, which uses I... 2 The C interface monitors and controls the power path in real time. Four N-channel MOSFETs are used to integrate a four-switch Buck-Boost topology. The N-channel MOSFET model is TPH1R403NL. In this embodiment, the inductor power is set to 10μH / 10A. The topology circuit connects the inductor to achieve efficient conversion from a wide voltage input of 12-60V to an output of 5-28V.

[0039] Four-switch Buck-Boost circuit: It constructs an adaptive power path through Q1-Q4 MOSFETs and supports automatic switching between Buck / Boost / shoot-through modes; IP2366 intelligent control: It realizes adaptive negotiation of protocols such as PD3.1 / QC4+, with a maximum output of 140W;

[0040] The four-switch topology includes an input-side half-bridge (Q1 / Q2) and an output-side half-bridge (Q3 / Q4);

[0041] The working modes include:

[0042] Buck mode (Q1+Q4 on): Activated when input voltage > output voltage;

[0043] Boost mode (Q2+Q3 on): Activated when input voltage < output voltage;

[0044] Straight-through mode (Q2+Q4 on): Efficiency reaches 99.2% when input ≈ output.

[0045] The circuit board 32 is equipped with dual 5mΩ precision sampling resistors (R5 / R7), which are connected to the CSP1 / CSN1 pins of IP2366 to achieve ±50mA accuracy current detection; a 43kΩ voltage divider resistor (R16) and a 9.1kΩ resistor (R12) are configured to form a battery voltage acquisition network.

[0046] The circuit conversion module 3 also includes an input interface for connection to the battery pack 100 and an output interface 7 for connection to external electrical equipment.

[0047] In summary, this utility model enables rapid disassembly by moving the drive block 5 when the device is removed from the battery pack 100. The drive block 5, in cooperation with the connecting component 6, moves the contact plate within the slot 2, allowing the contact plate to press down on the limiting member 101 of the battery pack 100 from top to bottom. This causes the limiting member 101 to disengage from the slot 2, releasing its restriction on the housing 1. Furthermore, the use of a multi-protocol boost / buck controller in conjunction with an N-channel MOSFET and an inductor enables efficient control and conversion of the circuit.

[0048] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0049] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A portable power tool battery pack power source, comprising a housing, a slot disposed on the lower side of the housing and connected to a limiting member, and a circuit conversion module disposed within the housing for electrically connecting to and converting the battery pack, characterized in that, The slot is slidably connected to a contact member that can abut against the limiting member. A driving block is movably provided on the side wall of the housing. A connecting component is provided inside the housing that connects the driving block and the contact member and drives the contact member to move in the vertical direction. The circuit conversion module includes a circuit board disposed within a housing, a multi-protocol buck-boost controller disposed on the circuit board, multiple N-channel MOSFETs connected to the multi-protocol buck-boost controller, and an inductor for voltage conversion. The multiple N-channel MOSFETs constitute a Buck-Boost topology circuit.

2. The portable power tool battery pack generator according to claim 1, characterized in that: The abutting element includes an abutting plate that slides vertically and is connected to the slot. The connecting assembly includes a flip plate that is rotatably connected to the upper side of the slot and can be flipped up and down, a slide rod that slides horizontally and is connected to the housing and fixedly connected to the drive block, and a connecting rod that is hinged to the slide rod and the flip plate respectively. The slide rod is fitted with an elastic element that is connected to the housing.

3. The portable power tool battery pack generator according to claim 2, characterized in that: The flip plate is configured as an L-shaped structure, with the inflection point of the flip plate hinged to the shell, the upper end of the flip plate hinged to the connecting part, and the lower end of the flip plate slidingly connected to the upper side of the contact plate in the horizontal direction.

4. The portable power tool battery pack generator according to claim 2, characterized in that: The housing includes an upper housing and a lower housing. The circuit board is disposed inside the upper housing, the slot is located inside the lower housing, and the flip plate, slide bar, and connecting rod are all disposed inside the lower housing.

5. The portable power tool battery pack generator according to claim 1, characterized in that: The multi-protocol buck-boost controller is an IP2366 chip, which communicates via I... 2 The C interface monitors and controls the power path in real time.

6. The portable power tool battery pack generator according to claim 1, characterized in that: Four N-channel MOSFETs are provided, enabling the integration of a four-switch Buck-Boost topology circuit. The N-channel MOSFETs are model TPH1R403NL.

7. The portable power tool battery pack generator according to claim 1, characterized in that: The circuit conversion module also includes an input interface for connecting to the battery pack and an output interface for connecting to external electrical equipment.

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