Power board structure on a lawn mower battery pack

Abstract

The utility model discloses a power panel structure on battery package of weeding machine, and battery package shell includes end cover and casing, and the casing is embedded with inner shell, and the end of inner shell towards end cover is equipped with first circuit board, and the side of control knob on end cover is equipped with second circuit board, and first circuit board and second circuit board are electrically connected. The utility model discloses through being equipped with inner shell in the battery end part of battery package, and being equipped with the positioning member that can fix a circuit board respectively on the inner shell and the end cover with control knob, and being equipped with electric connecting piece between two circuit boards, both facilitate the assembly positioning of control knob on end cover, and facilitate the electric connection of battery group and control knob through the connection of two circuit boards, and the assembly efficiency is high and the good product rate is high.

Description

Technical Field

[0001] This utility model relates to the field of weeder battery pack technology, and in particular to the power board structure on a weeder battery pack. Background Technology

[0002] The battery pack is a crucial power component in electric weeding equipment such as lawnmowers. It typically consists of one or more batteries connected in series within a housing, whose output control commands are then relayed to the function board via a power board. Simultaneously, the power board needs to connect to the control components on the battery pack. Therefore, in battery pack assembly and production, the power board is usually fixed to the housing first, and then the batteries are installed. However, with the increasing power of current battery packs, the number of built-in batteries and the overall dimensions of the housing are relatively large. This has highlighted the low efficiency of conventional power board assembly methods, directly impacting the assembly and production costs of the finished product. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a power board structure for a weed cutter battery pack. An inner shell is provided inside the battery pack, and a circuit board is provided on the end caps of the inner shell and the outer shell, respectively. This facilitates the assembly and positioning of the control components on the end caps, and also facilitates the electrical connection between the battery pack and the control components through the connection of the two circuit boards. The assembly efficiency is high and the yield rate is high.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] The lawnmower battery pack has a power board structure. The battery pack has a casing and a battery pack inside. The power board is located inside the casing and is electrically connected to the battery pack. Control components are located on the casing next to the power board.

[0006] The outer casing includes a matching end cap and a housing, an inner housing is fitted onto the inner wall of the end of the housing facing the end cap, one end of the inner housing faces the battery pack and is adapted to it, and the control element is embedded on the end cap;

[0007] The power board includes a first circuit board and a second circuit board. The first circuit board is mounted on the inner shell at the end facing the end cover. The second circuit board is mounted on the inner wall of the end cover and is located on the outer side of the end of the control member facing the shell. The second circuit board is provided with a switch that can be matched with the control member. Both the first and second circuit boards are provided with electrical connectors that can be matched and connected to each other.

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

[0009] In the above technical solution, a first protrusion adapted to the outer contour of the first circuit board is formed on the end of the inner shell facing the end cover, and a plurality of first positioning members extending toward the end cover and used to fix the first circuit board are formed on the first protrusion and / or on its side.

[0010] In the above technical solution, a second protrusion and a second positioning member are formed on the inner wall of the end cover. The second protrusion can be fitted around the control member, and the second positioning member is disposed around the second protrusion and is used to fix the second circuit board.

[0011] In the above technical solution, the control component includes a detachable base and a pressing component. The pressing component is slidably mounted on the base, with one end passing through the end cap and extending to its end or its outer side, and the other end extending to the side of the second circuit board. The base is fitted into the inner wall of the second protrusion, and its end facing the second circuit board is provided with a limiting protrusion for supporting and limiting the travel of the pressing component after pressing.

[0012] In the above technical solution, the base and the pressing member are provided with guide protrusions or guide grooves that can match each other, and the first protrusion and the pressing member are provided with positioning grooves or positioning protrusions that can match each other.

[0013] In the above technical solution, the inner wall of the end cap is further provided with a third positioning member and / or a fourth positioning member that are adapted to the base. The third positioning member is located on the inner side of the second protrusion, and the fourth positioning member is located on the inner wall of the second protrusion. The base is provided with a fifth positioning member and a sixth positioning member. The fifth positioning member is adapted to the third positioning member, and the sixth positioning member is adapted to the fourth positioning member.

[0014] In the above technical solutions, both electrical connectors are either wired electrical connectors or wireless connectors.

[0015] In the above technical solution, both electrical connectors are plug-in connectors, and one of the plug-in connectors is electrically connected to a circuit board via a cable.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: by providing an inner shell at the end of the battery in the battery pack, and providing positioning components that can fix a circuit board on the inner shell and the end cover with the control component, and providing an electrical connector between the two circuit boards, it is not only convenient to assemble and position the control component on the end cover, but also convenient to connect the battery pack and the control component electrically through the connection of the two circuit boards, resulting in high assembly efficiency and high yield. Attached Figure Description

[0017] Figure 1 This is an exploded structural diagram of this embodiment;

[0018] Figure 2 This is a schematic diagram of the inner shell structure in this embodiment;

[0019] Figure 3 This is a schematic diagram of the end cap structure in this embodiment;

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

[0021] Figure 5 This is a schematic diagram of the pressing component in this embodiment.

[0022] In the diagram: 11. End cap; 12. Housing; 20. Power board; 21. First circuit board; 22. Second circuit board; 30. Control component; 31. Base; 32. Pressing component; 40. Inner shell; 50. Electrical connector; 60. Switch component; 1. First protrusion; 2. First positioning component; 3. Second protrusion; 4. Second positioning component; 5. Limiting protrusion; 6. Third positioning component; 7. Fourth positioning component; 8. Guide protrusion; 9. Guide slot; 12. Positioning slot; 13. Positioning protrusion; 14. Fifth positioning component; 16. Sixth positioning component. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] 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.

[0025] like Figure 1 As shown, the power board structure of the weed cutter's battery pack includes a casing and a battery pack inside. A power board 20 is housed within the casing and is electrically connected to the battery pack. A control element 30 is located on the side of the power board 20 on the casing.

[0026] The outer casing includes a matching end cap 11 and a housing 12. An inner housing 40 is fitted onto the inner wall of the end of the housing 12 facing the end cap 11. One end of the inner housing 40 faces the battery pack and is adapted to it. A control element 30 is embedded on the end cap 11.

[0027] The power board 20 includes a first circuit board 21 and a second circuit board 22. The first circuit board 21 is mounted on the inner shell 40 at the end facing the end cover 11. The second circuit board 22 is mounted on the inner wall of the end cover 11 and is located on the outer side of the end of the control member 30 facing the housing 12. The second circuit board 22 is provided with a switch member 60 that can be matched with the control member 30. Both the first circuit board 21 and the second circuit board 22 are provided with electrical connectors 50 that can be matched and connected to each other.

[0028] like Figure 2 As shown, a first protrusion 1 adapted to the outer contour of the first circuit board 21 is formed on the end of the inner shell 40 facing the end cover 11. A plurality of first positioning members 2 extending toward the end cover 11 and used to fix the first circuit board 21 are formed on the first protrusion 1 and / or on its side.

[0029] like Figure 3 As shown, a second protrusion 3 and a second positioning member 4 are formed on the inner wall of the end cover 11. The second protrusion 3 can be fitted around the control member 30. The second positioning member 4 is located around the second protrusion 3 and is used to fix the second circuit board 22. In this embodiment, a third positioning member 6 and / or a fourth positioning member 7 adapted to the base 31 are also provided on the inner wall of the end cover 11. The third positioning member 6 is located inside the second protrusion 3, and the fourth positioning member 7 is located on the inner wall of the second protrusion 3.

[0030] like Figure 4-5 As shown, the control component 30 includes a detachable base 31 and a pressing component 32. The pressing component 32 is slidably mounted on the base 31, with one end passing through the end cover 11 and extending to its end or the outside, and the other end extending to the side of the second circuit board 22. The base 31 is fitted into the inner wall of the second protrusion 3, and its end facing the second circuit board 22 is provided with a limiting protrusion 5 for supporting and limiting the travel of the pressing component 32 after pressing. The base 31 and the pressing component 32 are provided with mutually matching guide protrusions 8 or guide grooves 9. The second protrusion 3 and the pressing component 32 are provided with mutually matching positioning grooves 12 or positioning protrusions 13. The base 31 is provided with a fifth positioning component 14 and a sixth positioning component 15. The fifth positioning component 14 is adapted to the third positioning component 6, and the sixth positioning component 15 is adapted to the fourth positioning component 7.

[0031] like Figure 1 As shown, both electrical connectors 50 are either wired or wireless connectors. In this embodiment, both electrical connectors 50 are plug-in connectors, and one plug-in connector is electrically connected to a circuit board via a cable.

[0032] like Figure 1-5As shown, in this embodiment, the first positioning member 2 and the second positioning member 4 are both hollow columns, which can be used with locking screws to lock and fix a circuit board; the base 31 is a ring structure, the pressing member 32 is a columnar structure, the fifth positioning member 14 is a plurality of sliding grooves provided at one end of the base 31 and on the periphery of the pressing member 32, the third positioning member 6 is a plurality of protrusions that can be matched one by one and inserted into the sliding grooves, the sixth positioning member 15 is a plurality of protruding columns provided on the outer wall of the base 31, and the fourth positioning member 7 is a plurality of arc-shaped grooves that can be matched one by one and fitted around the protruding columns.

[0033] During assembly, firstly, the battery is assembled into the housing 12, then the inner shell 40 is fitted into the open end of the housing 12, and the first circuit board 21 is locked and fixed onto the first positioning member 2 of the inner shell 40 with locking screws; in addition, the third positioning member 6 is matched with the fifth positioning member 14, the fourth positioning member 7 is matched with the fifth positioning member 15, the base 31 is fitted into the second protrusion 3, the guide protrusion 8 is aligned with the guide slot 9, the positioning protrusion 13 is aligned with the positioning slot on the end cover 31, the pressing member 32 is fitted into the base 31 so that its end abuts against the limiting protrusion 5, and the second circuit board 22 is locked onto the second positioning member 4 with locking screws so that its end abuts against the base 32; finally, the plug connectors 50 on the two circuit boards are connected, the end cover 11 is fastened onto the housing 12 and locked with fastening screws, thus completing the battery pack assembly.

[0034] This utility model provides an inner shell 40 at the end of the battery in the battery pack, and positioning components that can fix a circuit board are respectively provided on the inner shell 40 and the end cover 11 with the control component 30. An electrical connector 50 is provided between the two circuit boards. This facilitates the assembly and positioning of the control component 30 on the end cover 11, and also facilitates the electrical connection between the battery pack and the control component 30 through the connection of the two circuit boards. The assembly efficiency is high and the yield rate is high.

[0035] 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 power board structure for a weed cutter battery pack, the battery pack having a housing and a battery pack housed therein, the power board being disposed inside the housing and electrically connected to the battery pack, and a control component being disposed on the side of the power board on the housing; characterized in that: The outer casing includes a matching end cap and a housing, an inner housing is fitted onto the inner wall of the end of the housing facing the end cap, one end of the inner housing faces the battery pack and is adapted to it, and the control element is embedded on the end cap; The power board includes a first circuit board and a second circuit board. The first circuit board is mounted on the inner shell at the end facing the end cover. The second circuit board is mounted on the inner wall of the end cover and is located on the outer side of the end of the control member facing the shell. The second circuit board is provided with a switch that can be matched with the control member. Both the first and second circuit boards are provided with electrical connectors that can be matched and connected to each other.

2. The weed eater battery pack on power board structure of claim 1, wherein, The inner shell has a first protrusion on its end facing the end cap that is adapted to the outer contour of the first circuit board. A plurality of first positioning members extending toward the end cap and used to fix the first circuit board are formed on the first protrusion and / or on its side.

3. The weed eater battery pack on power board structure of claim 2, wherein, A second protrusion and a second positioning member are formed on the inner wall of the end cap. The second protrusion can be fitted around the control member, and the second positioning member is located around the second protrusion and is used to fix the second circuit board.

4. The weed eater battery pack on power board structure of claim 3, wherein, The control element includes a detachable base and a pressing element. The pressing element is slidably mounted on the base, with one end passing through the end cap and extending to its end or the outside, and the other end extending to the side of the second circuit board. The base is fitted into the inner wall of the second protrusion, and its end facing the second circuit board has a limiting protrusion for supporting and limiting the travel of the pressing element after pressing.

5. The weed eater battery pack on power board structure of claim 4, wherein, The base and the pressing member are provided with guide protrusions or guide grooves that can match each other, and the first protrusion and the pressing member are provided with positioning grooves or positioning protrusions that can match each other.

6. The power board structure on the weeder battery pack according to claim 4, characterized in that, The inner wall of the end cap is further provided with a third positioning member and / or a fourth positioning member that are adapted to the base. The third positioning member is located on the inner side of the second protrusion, and the fourth positioning member is located on the inner wall of the second protrusion. The base is provided with a fifth positioning member and a sixth positioning member. The fifth positioning member is adapted to the third positioning member, and the sixth positioning member is adapted to the fourth positioning member.

7. The weed eater battery pack on power board structure of any one of claims 1-6, wherein, Both of the electrical connectors are either wired or wireless connectors.

8. The weed eater battery pack on power board structure of claim 7, wherein, Both electrical connectors are plug-in connectors, and one of the plug-in connectors is electrically connected to a circuit board via a cable.

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