Positioning structure of detachable function board on lawn mower battery pack

Abstract

The utility model discloses weed eater battery package on the function board positioning structure convenient to assemble and disassemble, is equipped with the mounting hole groove of the lateral wall of several throughs on the battery package shell, and the inner wall of shell is all equipped with annular protruding on the periphery of mounting hole groove, and several annular protruding is equipped with mounting panel on the frame, and mounting panel is equipped with the insert, and the two pins of insert are passed through mounting panel and are connected with function board electrically, and the insert is equipped with the slot on the side of battery package shell. The utility model through the installation plate of detachable fixed connection with second shell on the battery package, and function board is installed on function board, can in the process of dismounting battery package and dismounting the pulling force or pressure through second shell and directly acts on mounting panel, plays the vibration of external force to function board, thereby reaches the purpose of avoiding function board and power board to come off to ensure that the circuit in battery package is always connected smoothly, and the installation hole groove is equipped on second shell, and the mounting panel is conveniently disassembled from the outside of second shell (battery package), and the dismounting is convenient.

Description

Technical Field

[0001] This utility model relates to the field of weeder battery pack technology, and in particular to a positioning structure for a functional board on a weeder battery pack that is easy to install and remove. Background Technology

[0002] In circuit board design, mounting holes are usually reserved at the corners or center of the board so that the circuit board can be fixed to the inner wall of the structural component with screws during assembly and production. Then, the structural component is installed to complete the installation and positioning of the circuit board.

[0003] In the battery pack design of lawnmowers, the battery pack is assembled in one half-shell, the function board is located in the other half-shell, and the power board is located in the end cap at one end of the battery pack and is electrically connected to the function board via cables or connectors. However, in actual assembly production, whether the end cap is assembled with one half-shell first and then the other half-shell is assembled, or the two half-shells are matched and fastened together before the end cap is assembled, both assembly processes easily pull on the cables or connectors between the power board and the function board, causing them to loosen. In addition, during maintenance and testing, when disassembling the battery pack, it is also very easy to pull on the cables and connectors between the power board and the function board when disassembling the snap-fit ​​structure between the shell and the end cap, affecting the electrical connection between the two circuit boards. This misleads the direction of maintenance and testing and overlooks the real factors affecting the quality of the battery pack. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a positioning structure for a functional board on a weed cutter battery pack that is easy to install and remove. An installation plate is provided between the battery pack housing and the functional board. During the installation and removal of the battery pack, the pulling force or pressure is directly applied to the installation plate through the second housing, which reduces the vibration of the functional board by external forces. This prevents the functional board from becoming loose from the power board and ensures that the circuit inside the battery pack is always connected and smooth. The installation and removal are convenient.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] The weed cutter battery pack features a convenient mounting and dismounting functional plate positioning structure. The battery pack includes a first housing and a second housing that can be matched and fastened together. Each end of the first and second housings has an end cap that can be matched and fastened to it. A battery pack is mounted on the inner wall of the first housing, a functional plate is mounted on the inner wall of the second housing, and a power board is mounted on the inner wall of the end cap. The power board and the functional plate are electrically connected.

[0007] The second housing has several mounting holes that penetrate its sidewalls. An annular protrusion is located around each mounting hole on the inner wall of the second housing. A mounting plate is mounted on the end of each annular protrusion. Several locking elements pass through the mounting holes to fix the mounting plate to the second housing. Several inserts are embedded in the end of the mounting plate facing the second housing. Two pins of each insert pass through the mounting plate and a functional board in sequence and are electrically connected to the functional board. The functional board has several first slots that can be matched with each pin. The second housing has several second slots that match each insert.

[0008] As a further explanation of the above technical solution:

[0009] In the above technical solution, each of the mounting slots is a countersunk hole and its smaller inner hole is a threaded hole.

[0010] In the above technical solution, each of the annular protrusions has a stepped hole formed on its inner wall, and the end with the larger hole diameter faces the mounting plate.

[0011] In the above technical solution, the mounting plate has a plurality of perforated posts and a second protrusion at the end facing the second housing, and a plurality of positioning posts at the other end. Each perforated post can be fitted into an annular protrusion, and its inner hole is a threaded hole that is adapted to the threaded hole on a mounting slot. The plurality of second protrusions together form a plurality of slots that can secure each plug-in. The mounting plate has two through slots inside each slot, and each through slot is adapted to a pin. The plurality of positioning posts are adapted to the positioning slots on the functional board one by one.

[0012] In the above technical solution, a reinforcing rib is formed around each of the holes on the mounting plate, and the ends of all the reinforcing ribs facing the second housing are coplanar.

[0013] In the above technical solution, the mounting plate also has a plurality of first limiting protrusions formed in each of the slots, and the upper end of each of the first limiting protrusions is adapted to a plug-in.

[0014] In the above technical solution, each plug-in includes a positioning part, a plug-in part, and two pins: each positioning part can be fitted into a slot and pressed against a number of first limiting protrusions; each plug-in part is located on the side of the positioning part and includes two opposing and arc-shaped elastic arms, the middle parts of the two elastic arms are close to each other and are located on the side of a through slot; the length of each pin is greater than the sum of the thicknesses of the mounting plate and the functional plate.

[0015] In the above technical solution, the end of the mounting plate facing the functional plate is further provided with a plurality of second limiting protrusions, and the end of each second limiting protrusion can match and abut against the end face of the functional plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: by installing a mounting plate that can be detachably fixed to the second housing of the battery pack, and installing the functional board on the functional board, the pulling force or pressure during the disassembly and assembly of the battery pack can be directly applied to the mounting plate through the second housing, thereby reducing the vibration of the functional board by external force, thus preventing the functional board from becoming loose from the power board and ensuring that the circuit inside the battery pack is always connected smoothly; by setting the mounting hole slot 1 on the second housing 20, it is convenient to remove the mounting plate from the outside of the second housing (battery pack), making disassembly and assembly convenient. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of this embodiment;

[0018] Figure 2 This is a structural schematic diagram from another perspective of this embodiment;

[0019] Figure 3 This is an exploded structural diagram of this embodiment;

[0020] Figure 4 This is a schematic diagram of the mounting plate in this embodiment;

[0021] Figure 5 This is a structural schematic diagram of the mounting plate from another perspective in this embodiment;

[0022] Figure 6 This is a schematic diagram of the plug-in structure in this embodiment.

[0023] In the diagram: 20, second housing; 30, function board; 40, mounting plate; 50, plug-in; 51, positioning part; 52, insertion part; 1, mounting hole groove; 2, annular protrusion; 3, pin; 4, second slot; 5, hole post; 6, second protrusion; 7, positioning post; 8, card slot; 9, through groove; 10, positioning hole groove; 11, first limiting protrusion; 12, elastic arm; 13, second limiting protrusion; 15, first slot; 16, reinforcing rib plate. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] like Figure 1-3As shown, the battery pack of the weed cutter has a positioning structure for a functional board that is easy to install and remove. The battery pack includes a first housing and a second housing 20 that can be matched and fastened together. One end of the first housing and the second housing 20 is provided with an end cap that can be matched and fastened together. The battery pack is provided on the inner wall of the first housing, the functional board 30 is provided on the inner wall of the second housing 20, and the power board is provided on the inner wall of the end cap. The power board and the functional board 30 are electrically connected. The second housing 20 has several mounting slots 1 that penetrate its sidewalls. An annular protrusion 2 is provided on the inner wall of the second housing 20 around each mounting slot 1. A mounting plate 40 is mounted on the end of each annular protrusion 2. Several locking elements can pass through each mounting slot 1 to fix the mounting plate 40 on the second housing 20. Several plug-in 50s are embedded in the end of the mounting plate 40 facing the second housing 20. The two pins 3 of each plug-in 50 pass through the mounting plate 40 and the function board 30 in sequence and are electrically connected to the function board 30. Each pin 3 is electrically connected to the function board 30. The function board 30 has several first slots 15 that can be adapted to each pin 3. The second housing 20 has several second slots 4 that match each plug-in 50.

[0027] In this embodiment, each mounting slot 1 is a countersunk hole and its smaller inner hole is a threaded hole. The inner wall of each annular protrusion 2 is formed with a stepped hole, and its larger end faces the mounting plate 40.

[0028] like Figure 4-5 As shown, the mounting plate 40 has several perforated posts 5 and second protrusions 6 at its end facing the second housing 20, and several positioning posts 7 at its other end. Each perforated post 5 can be fitted into an annular protrusion 2, and its inner holes are all threaded holes that are adapted to the threaded holes on a mounting slot 1. The several second protrusions 6 together form several slots 8 that can secure each plug-in 50. The mounting plate 40 has two through slots 9 inside each slot 8, and each through slot 9 is adapted to a pin 3. The several positioning posts 7 are adapted to the positioning slots 10 on the function board 30 one by one.

[0029] In this embodiment, a reinforcing rib plate 16 is formed around each hole post 5 on the mounting plate 40, and the ends of all reinforcing rib plates 16 facing the second housing 20 are coplanar; a plurality of first limiting protrusions 11 are also formed in each slot 8 on the mounting plate 40, and the upper end of each first limiting protrusion 11 is adapted to a plug-in 50; a plurality of second limiting protrusions 13 are also provided at the end of the mounting plate 40 facing the functional plate 30, and the end of each second limiting protrusion 13 can match and abut against the end face of the functional plate 30.

[0030] like Figure 6As shown, each plug-in 50 includes a positioning part 51, a plug-in part 52, and two pins 3. Each positioning part 51 can be fitted into a slot 8 and pressed against a number of first limiting protrusions 11. Each plug-in part 52 is located on the side of the positioning part 51 and includes two opposing and arc-shaped elastic arms 12. The middle parts of the two elastic arms 12 are close to each other and are located on the side of a through slot 9. The length of each pin 3 is greater than the sum of the thicknesses of the mounting plate 40 and the functional plate 30.

[0031] During assembly, such as Figure 3-4 As shown, firstly, the positioning parts 51 of several plug-in 50s are snapped into the slots 8 of the mounting plate 40, ensuring that each pin 3 passes through the through slot 9. Then, the positioning holes 10 on the function board 30 are aligned one by one with the positioning posts 7 on the mounting plate 40, and each pin 3 is aligned with the pin hole slot 15 on the function board 30 and inserted to fix the function board 30 on the mounting plate 40. Then, the function board 30 and the power board are connected and their electrical connection is ensured. After completion, the hole post 5 on the mounting plate 40 is aligned with the annular protrusion 2 and inserted to install the mounting plate 40 into the inner wall of the second housing 20. Then, the second housing 20 is flipped over, and the locking screw is passed through the mounting hole slot 1, the annular protrusion 2 and the positioning hole post 5 to lock the mounting plate 40 onto the second housing 20. The end of the reinforcing rib plate 16 is matched and pressed against the end of the second protrusion 2 to limit the distance between the two and prevent the second housing 20 from damaging the plug-in 50. Finally, the second housing 20 is matched and snapped with the first housing and end cover of the battery pack.

[0032] When in use, the power-collecting structure of the lawnmower can be inserted into the plug part 52 through the second slot 4 to conduct the circuit and use the power of the battery pack.

[0033] During disassembly, first loosen or remove the screws in the mounting slot 1 on the second housing 20 to detach the mounting plate 40 from the second housing 20. Finally, disassemble the second housing 20, the first housing, and the end cover. This will not pull the mounting plate 40 or its functional board 30, nor will it affect the electrical connection between the functional board 30 and the power board.

[0034] In applications, to further enhance the stability of the connection between the mounting plate 40 and the function board 30, a limiting structure such as a protrusion or an inverted V-shaped elastic buckle can be provided at the end of the positioning post 7 to prevent the two from becoming loose. Alternatively, the pin 3 can be soldered and fixed to the function board 30.

[0035] This invention installs a mounting plate 40 on the second housing 20 of the battery pack, which can be detachably fixed to it, and mounts the functional board 30 on the functional board 40. During the assembly and disassembly of the battery pack, the pulling or pressing force during assembly and disassembly is directly applied to the mounting plate 40 through the second housing 20, which reduces the vibration of the functional board 30 caused by external forces. This achieves the purpose of preventing the functional board 30 from becoming loose from the power board and ensuring that the circuit inside the battery pack is always connected smoothly. By setting the mounting hole slot 1 on the second housing 20, it is convenient to remove the mounting plate 40 from the outside of the second housing (battery pack), making assembly and disassembly convenient.

[0036] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A detachable and easily installable functional plate positioning structure for a weed cutter battery pack, the battery pack comprising a first housing and a second housing that can be matched and fastened together, each end of the first housing and the second housing having an end cap that can be matched and fastened together, a battery pack being disposed on the inner wall of the first housing, a functional plate being disposed on the inner wall of the second housing, and a power board being disposed on the inner wall of the end cap, the power board being electrically connected to the functional plate; characterized in that: The second housing has several mounting holes that penetrate its sidewalls. An annular protrusion is located around each mounting hole on the inner wall of the second housing. A mounting plate is mounted on the end of each annular protrusion. Several locking elements pass through the mounting holes to fix the mounting plate to the second housing. Several inserts are embedded in the end of the mounting plate facing the second housing. Two pins of each insert pass through the mounting plate and a functional board in sequence and are electrically connected to the functional board. The functional board has several first slots that can be matched with each pin. The second housing has several second slots that match each insert.

2. The easy-to-install and detach functional plate positioning structure on the weeder battery pack according to claim 1, characterized in that, Each of the aforementioned mounting slots is a countersunk hole, and its smaller inner diameter is a threaded hole.

3. The easy-to-install and detach functional plate positioning structure on the weeder battery pack according to claim 2, characterized in that, Each of the annular protrusions has a stepped hole formed on its inner wall, with the larger end of the hole facing the mounting plate.

4. The easy-to-install and remove functional plate positioning structure on the weeder battery pack according to claim 3, characterized in that, The mounting plate has several perforated posts and a second protrusion at its end facing the second housing, and several positioning posts at its other end. Each perforated post can be fitted into an annular protrusion, and its inner hole is a threaded hole that is adapted to the threaded hole on a mounting slot. The several second protrusions together form several slots that can secure each plug-in. The mounting plate has two through slots inside each slot, and each through slot is adapted to a pin. The several positioning posts are adapted to the positioning slots on the function board one by one.

5. The easy-to-install and detach functional plate positioning structure on the weeder battery pack according to claim 4, characterized in that, A reinforcing rib is formed around each of the holes on the mounting plate, and the ends of all the reinforcing ribs facing the second housing are coplanar.

6. The easy-to-install and detach functional plate positioning structure on the weeder battery pack according to claim 4, characterized in that, The mounting plate also has a plurality of first limiting protrusions formed in each of the slots, and the upper end of each of the first limiting protrusions is adapted to a plug-in.

7. The easy-to-install and detach functional plate positioning structure on the weeder battery pack according to claim 6, characterized in that, Each of the aforementioned plugs includes a positioning part, a plug-in part, and two pins: each of the positioning parts can be fitted into a slot and pressed against a plurality of first limiting protrusions; each of the plug-in parts is located beside the positioning part and includes two opposing and arc-shaped elastic arms, the middle parts of the two elastic arms being close to each other and located beside a through slot; the length of each of the pins is greater than the sum of the thicknesses of the mounting plate and the functional plate.

8. The easy-to-install and detach functional plate positioning structure for the weeder battery pack according to any one of claims 1-7, characterized in that, The mounting plate is further provided with a plurality of second limiting protrusions at the end facing the functional plate, and the end of each second limiting protrusion can be matched and abutted against the end face of the functional plate.

Images