Battery pack connection structure for power tools

Abstract

The utility model provides a kind of battery pack connecting structure for electric tool, including battery pack, battery pack is used to cooperate with the plug-in part on electric tool and plug-in;The inside of plug-in part forms slot, and the side of battery pack towards plug-in part is provided with protruding part;Two side inner walls of slot are all provided with lug, and the inner end surface of each lug and the inner end surface of slot form the slotted hole of one end opening, and the two side outer walls of protruding part are all provided with sliding block, and each sliding block is all slidably inserted in the slotted hole of corresponding side;The inner wall of lug at the opening end of each slotted hole is all provided with guide slope, and the inner wall of the tail end of each sliding block is all provided with protruding part;When protruding part cooperates with slot and plug-in, guide slope is used to cooperate with sliding block to facilitate sliding block to be slid into slotted hole;After protruding part is completely inserted into slot, protruding part is used to be tightly abutted with guide slope;The utility model can improve the stability and reliability of battery pack and plug-in part after cooperation and plug-in.

Description

Technical Field

[0001] This utility model relates to the field of battery pack connection structure technology, and more specifically, to a battery pack connection structure for power tools. Background Technology

[0002] A battery pack is a component that is inserted into the connector of a power tool to provide power to the tool. After the battery pack is inserted into the connector, several conductive tabs on the connector can engage with one of the elastic conductive elements on the battery pack to conduct electricity, thus enabling the battery pack to supply power to the power tool. However, in existing battery pack insertion structures, after insertion, the battery pack and connector are prone to loose connections, meaning the battery pack may wobble relative to the connector. This can lead to poor contact between the conductive tabs and the elastic conductive elements, thereby affecting the normal power supply of the power tool. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a battery pack connection structure for power tools, which can improve the stability and reliability of the battery pack after it is connected to the plug-in part located on the power tool.

[0004] This utility model provides a battery pack connection structure for power tools, including a battery pack for insertion into a connector on the power tool; a slot is formed on the inner side of the connector, and several conductive plates are fixed on the inner side of the slot. The conductive plates are electrically connected to a controller in the power tool. A protrusion is provided on the side of the battery pack facing the connector, and several elastic conductive elements are embedded in the protrusion. The protrusion is inserted into the slot, and each conductive plate is inserted into and in contact with one of the elastic conductive elements. A spring-loaded buckle is provided on the battery pack, and a buckle groove is provided on the inner end of the slot. The spring-loaded buckle and the buckle are connected to each other. The slot is designed for a snap-fit ​​connection. Both sides of the slot have protrusions on their inner walls. Each protrusion's inner end face forms an open groove with the inner end face of the slot. Slider blocks are located on both sides of the outer walls of the protrusion, and each slider slides into the corresponding groove. A guide ramp is located on the inner wall of the protrusion at the opening of each groove, and a protrusion is located on the inner wall of the tail end of each slider. When the protrusion is engaged with the slot, the guide ramp guides the slider to slide into the groove. When the protrusion is fully inserted into the slot, the protrusion abuts against the guide ramp.

[0005] By adopting the above-described structure, this invention allows for convenient insertion of the battery pack's protrusion into the slot of the connector. The guide slope cooperates with the slider to guide it into the groove, facilitating both the insertion of the slider and the groove, and the insertion of the battery pack into the connector. Furthermore, after the protrusion is fully inserted into the slot, it abuts against the guide slope, improving the stability and reliability of the battery pack's connection and preventing wobbling relative to the connector. This avoids poor contact between the conductive sheet and the elastic conductive element, ensuring reliable power supply to the power tool. Additionally, since all power tools are equipped with connectors compatible with the battery pack, the battery pack becomes universally applicable to all power tools, improving its versatility and convenience.

[0006] In one possible implementation, a limiting block is provided on the inner end face of the battery pack, and a limiting groove is provided at the bottom of the slot. When the protrusion is engaged with the slot, the limiting block is inserted into the limiting groove to limit the battery pack and the connector. With the above structure, under the combined action of the limiting block and the limiting groove, when the protrusion is engaged with the slot, that is, when the battery pack and the connector are engaged, the limiting block can be inserted into the limiting groove to limit the battery pack and the connector, thereby facilitating the engagement of the battery pack and the connector and improving the reliability and stability of the engagement.

[0007] In one possible implementation, each bump has a plurality of first reinforcing grooves spaced apart along the extension direction of the bump on its inner end face; by setting the first reinforcing grooves, the structural strength of the bump can be improved, that is, the bump can be effectively prevented from breaking. In addition, the material cost of the bump can be reduced, and the bump can be made lightweight.

[0008] In one possible implementation, each slider has several recessed grooves spaced apart along the extension direction of the slider on the side facing the insertion part. By adopting this structure, the structural strength of each slider can be improved under the action of the recessed grooves, which can effectively prevent the slider from breaking. In addition, the material cost of the slider can be reduced, and the slider can achieve the purpose of lightweighting.

[0009] In one possible implementation, a second reinforcing groove is provided on the slider at the location of each protrusion; by adopting this structure, the structural strength of the slider at the protrusion can be improved, the material cost of the slider at the protrusion can be reduced, and the slider at the protrusion can achieve the purpose of weight reduction. Attached Figure Description

[0010] Figure 1 A three-dimensional structural diagram showing the battery pack after it is inserted into the connector on the power tool;

[0011] Figure 2 This is a three-dimensional structural diagram of the battery pack and connector after disassembly.

[0012] Figure 3 This is a schematic diagram of the first three-dimensional structure of the connector.

[0013] Figure 4 This is a schematic diagram of the second three-dimensional structure of the connector;

[0014] Figure 5 This is a schematic diagram of the three-dimensional structure of the battery pack. Detailed Implementation

[0015] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0016] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0017] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0018] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] See Figure 1-5 As shown in the figure, this application discloses a battery pack connection structure for power tools, including a battery pack 1, which is used to engage with a plug-in part 21 located on a power tool 2; a slot 22 is formed on the inner side of the plug-in part 21, and a plurality of conductive pieces 3 are fixed on the inner side of the slot 22. The conductive pieces 3 are electrically connected to the controller in the power tool 2. A protrusion 11 is provided on the side of the battery pack 1 facing the plug-in part 21. A plurality of elastic conductive elements 4 are embedded in the protrusion 11. The protrusion 11 is inserted into the slot 22, and each conductive piece 3 engages with one of the elastic conductive elements 4 and makes contact with it for conduction; a spring buckle 5 is provided on the battery pack 1, and a buckle groove 23 is provided on the inner end of the slot 22. The spring buckle 5 engages with the buckle groove 23 for fastening. Both sides of the inner wall of the slot 22 are provided with protrusions 24. The inner end face of each protrusion 24 forms a groove 25 with one end open between it and the inner end face of the slot 22. Both sides of the outer wall of the protrusion 11 are provided with sliders 12. Each slider 12 is slidably inserted into the groove 25 on the corresponding side. The inner wall of the protrusion 24 at the opening end of each groove 25 is provided with a guide slope 241. The inner wall of the tail end of each slider 12 is provided with a protrusion 121. When the protrusion 11 is engaged with the slot 22, the guide slope 241 is used to guide the slider 12 so that the slider 12 can slide into the groove 25. When the protrusion 11 is fully inserted into the slot 22, the protrusion 121 is used to abut against the guide slope 241.

[0020] A limiting block 13 is provided on the inner end face of the battery pack 1, and a limiting groove 26 is provided on the bottom of the slot 22. When the protrusion 11 is engaged with the slot 22, the limiting block 13 is inserted into the limiting groove 26 to limit the battery pack 1 and the plug-in part 21. With the above structure, under the cooperation of the limiting block and the limiting groove, when the protrusion is engaged with the slot, that is, when the battery pack is engaged with the plug-in part, the limiting block can be inserted into the limiting groove to limit the battery pack and the plug-in part, thereby facilitating the engagement of the battery pack and the plug-in part and improving the reliability and stability of the engagement of the battery pack and the plug-in part.

[0021] Each bump 24 has several first reinforcing grooves 242 spaced apart along the extension direction of the bump 24 on its inner end face. The first reinforcing grooves can improve the structural strength of the bump, effectively preventing the bump from breaking. In addition, they can reduce the material cost of the bump and make the bump lightweight.

[0022] Each slider 12 has several recesses 122 spaced apart along the extension direction of the slider 12 on the side facing the insertion part 21. By adopting this structure, the structural strength of each slider can be improved under the action of the recesses, which can effectively prevent the slider from breaking. In addition, the material cost of the slider can be reduced, and the slider can achieve the purpose of lightweighting.

[0023] A second reinforcing groove 123 is provided on the slider 12 at the location of each protrusion 121; by adopting this structure, the structural strength of the slider at the protrusion can be improved, the material cost of the slider at the protrusion can be reduced, and the slider at the protrusion can achieve the purpose of weight reduction.

[0024] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A battery pack connection structure for a power tool, comprising a battery pack (1) for engaging with a plug (21) located on a power tool (2); a slot (22) is formed on the inner side of the plug (21), and a plurality of conductive plates (3) are fixed on the inner side of the slot (22), the conductive plates (3) being electrically connected to a controller in the power tool (2); a protrusion (11) is provided on the side of the battery pack (1) facing the plug (21), and a plurality of elastic conductive elements (4) are embedded in the protrusion (11), the protrusion (11) being inserted into the slot (22), each of the conductive elements being... Each of the sheets (3) is inserted into and makes contact with one of the elastic conductive parts (4) for conductive contact; the battery pack (1) is provided with a snap fastener (5), and the inner end of the slot (22) is provided with a snap groove (23), and the snap fastener (5) is engaged with the snap groove (23); both sides of the inner wall of the slot (22) are provided with protrusions (24), and the inner end face of each protrusion (24) and the inner end face of the slot (22) form a sliding groove (25) with one end open; both sides of the outer wall of the protrusion (11) are provided with sliders (12), and each slider (12) is slidably inserted into the corresponding side of the sliding groove (25); the characteristic is that: A guide slope (241) is provided on the inner wall of the protrusion (24) located at the opening end of each of the slide grooves (25), and a protrusion (121) is provided on the inner wall of the tail end of each of the sliders (12); when the protrusion (11) is engaged with the slot (22), the guide slope (241) is used to guide the slider (12) so that the slider (12) can slide into the slide groove (25); when the protrusion (11) is fully inserted into the slot (22), the protrusion (121) is used to abut against the guide slope (241).

2. The battery pack connection structure for power tools according to claim 1, characterized in that: A limiting block (13) is provided on the inner end face of the battery pack (1), and a limiting groove (26) is provided at the bottom of the slot (22); when the protrusion (11) is engaged with the slot (22), the limiting block (13) is used to be inserted into the limiting groove (26) to limit the battery pack (1) and the insertion part (21).

3. The battery pack connection structure for power tools according to claim 1 or 2, characterized in that: Each of the protrusions (24) has a plurality of first reinforcing grooves (242) spaced apart along the extension direction of the protrusion (24) on its inner end face.

4. The battery pack connection structure for power tools according to claim 3, characterized in that: Each slider (12) has a plurality of recesses (122) spaced apart along the extension direction of the slider (12) on the side facing the insertion part (21).

5. The battery pack connection structure for power tools according to claim 1, 2, or 4, characterized in that: A second reinforcing groove (123) is provided on the slider (12) located at the position of each of the protrusions (121).

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