Battery pack structure and electric tool

Abstract

The utility model belongs to the technical field of electric tools, and particularly relates to a battery pack structure and an electric tool. The battery pack structure disclosed by the utility model comprises a shell assembly, a battery cell assembly and a shock pad, wherein the shell assembly comprises a shell and a sealing cover, and the sealing cover is detachably connected with the shell; the battery cell assembly is arranged in the shell and comprises a battery cell body; and the shock pad is arranged on the periphery of the battery cell body. According to the battery pack structure in the technical scheme, different types of battery cell bodies can be replaced, and the battery pack structure has wide applicability.

Description

Technical Field

[0001] This utility model belongs to the field of power tool technology, specifically relating to a battery pack structure and a power tool. Background Technology

[0002] To improve the versatility of power tools and make their working range unrestricted by socket locations, many power tools on the market use battery packs for power. Battery packs have advantages such as portability and ease of installation, which can greatly expand the application range of power tools.

[0003] Different models of battery cells on the market have different size specifications, but the existing battery pack structure can usually only be used for one model of battery cell, which limits the adaptability of the battery cell. Utility Model Content

[0004] The purpose of this invention is to provide a battery pack structure with a wide range of applications. This purpose is achieved through the following technical solution:

[0005] The first aspect of this utility model provides a battery pack structure, comprising:

[0006] A housing assembly, the housing assembly including a housing and a cover, the cover and the housing being detachably connected;

[0007] A battery cell assembly, wherein the battery cell assembly is disposed inside the housing, and the battery cell assembly includes a battery cell body;

[0008] A shock-absorbing pad is disposed on the outer periphery of the battery cell body.

[0009] The battery pack structure in this technical solution allows for cell replacement by removing the cover. Furthermore, the installation of shock-absorbing pads can be selected based on the size of the cell. When the outer diameter of the cell is large, it can be directly installed into the casing. When the outer diameter is small, shock-absorbing pads can be placed around the outside of the cell, filling the internal space of the casing to prevent the cell from shaking inside. Therefore, this battery pack structure can use cell bodies of different sizes, offering wide applicability. In addition, the shock-absorbing pads effectively reduce damage from external impacts to the cell, extending the lifespan of the battery pack structure.

[0010] In addition, the battery pack structure of this utility model may also have the following additional technical features:

[0011] In some embodiments of this utility model, the battery cell assembly includes a control circuit board, a first conductive sheet, and a second conductive sheet. The control circuit board is located at a first end of the battery cell body, and the first conductive sheet is located between the first end of the battery cell body and the control circuit board. The first end of the battery cell body is electrically connected to the control circuit board through the first conductive sheet, and the second end of the battery cell body is electrically connected to the control circuit board through the second conductive sheet.

[0012] In some embodiments of this utility model, a first gasket is provided between the first end of the battery cell body and the control circuit board. The first gasket has a first through hole, and at least a portion of the first conductive sheet is located inside the first through hole and is electrically connected to the first end of the battery cell body.

[0013] In some embodiments of this utility model, the first conductive sheet includes a first sheet structure, a second sheet structure, and a third sheet structure. The first sheet structure and the third sheet structure are respectively connected to the two ends of the second sheet structure. The first sheet structure and the second sheet structure are arranged vertically, and the third sheet structure and the second sheet structure are arranged parallel to each other with a height difference. The first sheet structure is electrically connected to the control circuit board. The third sheet structure is disposed inside the first through hole and is electrically connected to the first end of the battery cell body. The second sheet structure and the side of the first pad facing away from the battery cell body are in contact.

[0014] In some embodiments of this utility model, the second conductive sheet includes a conductive sheet body, a first connecting portion and a second connecting portion. The conductive sheet body is arranged along the axial direction of the battery cell body. The first connecting portion and the second connecting portion are respectively connected to both ends of the conductive sheet body and are respectively arranged perpendicular to the conductive sheet body. The first connecting portion is connected to the control circuit board, and the second connecting portion is electrically connected to the second end of the battery cell body. The conductive sheet body is located outside the shock-absorbing pad.

[0015] In some embodiments of this utility model, a second gasket is provided at the second end of the battery cell body, the second gasket has a second through hole, and at least a portion of the first connecting part is located inside the second through hole and electrically connected to the second end of the battery cell body.

[0016] In some embodiments of this utility model, the second connecting part includes a fourth sheet structure and a fifth sheet structure that are connected to each other. The fourth sheet structure is vertically connected to the conductive sheet body. The fifth sheet structure is parallel to the fourth sheet structure and there is a height difference between them. The fifth sheet structure is located inside the second through hole. The fourth sheet structure and the side of the second pad that is away from the battery cell body are in contact.

[0017] In some embodiments of this utility model, a first clearance opening is provided at the bottom of the housing, and the battery cell assembly further includes a first connection end electrically connected to the battery cell body. The first connection end is electrically connected to the connection port of the power tool through the first clearance opening, so that the battery cell body supplies power to the power tool.

[0018] In some embodiments of this utility model, the battery cell assembly further includes a second connection end electrically connected to the battery cell body, and a second clearance opening is provided at the bottom of the housing. The second connection end can be electrically connected to a power supply device through the second clearance opening to supply power to the battery cell body.

[0019] In a second aspect, this utility model provides an electric tool that includes the battery pack structure described in the above embodiments. The electric tool has a battery compartment for mounting the battery pack structure, and the battery pack structure and the electric tool are electrically connected to a connection port. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0021] Figure 1 A schematic diagram of the battery pack structure according to an embodiment of the present invention is shown.

[0022] Figure 2 An exploded view schematically showing a battery pack structure according to an embodiment of the present invention is shown.

[0023] Figure 3 An exploded view of a battery cell assembly according to an embodiment of the present invention is shown schematically.

[0024] Figure 4 A schematic diagram of the structure of the outer casing according to an embodiment of the present invention is shown;

[0025] Figure 5 A schematic diagram of the structure of the cap according to an embodiment of the present invention is shown.

[0026] The labels in the attached diagram are as follows:

[0027] 100. Housing assembly; 110. Housing; 111. Guide rail; 114. Buckle; 115. Positioning groove; 116. Positioning protrusion; 117. Anti-rotation part; 120. Cover; 121. Insertion part; 122. Locking hole; 123. Notch; 124. Handle;

[0028] 200. Battery cell assembly; 201. Battery cell body; 202. First connecting end; 203. Second connecting end; 204. First circuit board; 204a. First positioning protrusion; 205. Second circuit board; 206. First conductive sheet; 2061. First sheet structure; 2062. Second sheet structure; 2063. Third sheet structure; 207. Second conductive sheet; 2071. First connecting part; 2072. Conductive sheet body; 2073. Second connecting part; 2073a. Fourth sheet structure; 2073b. Fifth sheet structure; 208. First gasket; 2081. First through hole; 2082. Second positioning protrusion; 2083. Ring rib; 209. Second gasket; 2091. Second through hole; 210. First connector; 211. Second connector; 212. Protective cover; 213. Button; 214. Indicator light;

[0029] 300. Shock-absorbing pad. Detailed Implementation

[0030] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0031] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0032] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0033] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0034] Figure 1 A schematic diagram of the battery pack structure according to an embodiment of the present invention is shown. Figure 2 An exploded view schematically illustrating a battery pack structure according to an embodiment of the present invention is shown. Figure 1 and Figure 2 As shown, this utility model proposes a battery pack structure, which includes a housing assembly 100, a cell assembly 200, and a shock-absorbing pad 300. The housing assembly 100 includes a housing 110 and a cover 120, which are detachably connected. The cell assembly 200 is disposed inside the housing 110 and includes a cell body 201. The shock-absorbing pad 300 is disposed on the outer periphery of the cell body 201.

[0035] In this technical solution, the battery pack structure allows for the replacement of the cell body 201 by removing the cover 120. Furthermore, the installation of a shock-absorbing pad 300 can be selected based on the size of the cell body 201. When the outer diameter of the cell body 201 is large, it can be directly installed into the outer casing 110. When the outer diameter is small, the shock-absorbing pad 300 can be placed over the outside of the cell body 201, filling the internal space of the outer casing 110 to prevent the cell body 201 from shaking inside the casing 110. Therefore, this battery pack structure can use cell bodies 201 of different sizes, offering wide applicability. Additionally, the shock-absorbing pad 300 provides shock absorption, effectively reducing damage to the cell body 201 from external impacts and extending the service life of the battery pack structure.

[0036] Optionally, the shock-absorbing pad 300 can be a rubber pad, silicone pad, or foam pad, which can greatly reduce the damage to the battery cell body 201 caused by external impacts. Preferably, the shock-absorbing pad 300 can be a thermally conductive silicone pad, which can facilitate heat dissipation of the battery cell body 201 and prevent the battery cell body 201 from overheating and affecting its performance or service life. Optionally, the shock-absorbing pad 300 can be a rectangular pad structure, which is placed around the outer periphery of the battery cell body 201 during assembly. Of course, the shock-absorbing pad 300 can also be a cylindrical structure, which is directly fitted onto the battery cell body 201 during assembly.

[0037] Furthermore, the housing 110 is generally cylindrical, and the battery cell assembly 200 can be installed inside the housing 110 along its axial direction. Optionally, the outer wall of the housing 110 is provided with an anti-rotation portion 117, which is located on the opposite side of the guide rail 111. When the battery pack structure is placed on a flat surface, the anti-rotation portion 117 can prevent the battery pack structure from rolling. Exemplarily, the anti-rotation portion 117 can be a flat structure or a bracket, etc.

[0038] Furthermore, Figure 3 An exploded view schematically illustrating a battery cell assembly 200 according to an embodiment of the present invention is shown. See also Figures 1 to 3 Furthermore, the bottom of the outer casing 110 is provided with a first clearance opening, and the battery cell assembly 200 also includes a first connection end 202 electrically connected to the battery cell body 201. The first connection end 202 is electrically connected to the connection port of the power tool through the first clearance opening, so that the battery cell body 201 supplies power to the power tool. By adopting this structure, the battery pack structure and the power tool can be easily connected, making it convenient and easy to use. Optionally, a first connector 210 is provided at the first connection end 202. The first connector 210 is used to plug into the connection port of the power tool.

[0039] Furthermore, the battery cell assembly 200 also includes a second connection end 203 electrically connected to the battery cell body 201. A second clearance opening is provided at the bottom of the housing 110. The second connection end 203 can be electrically connected to a power supply device through the second clearance opening to supply power to the battery cell body 201. Optionally, the battery cell body 201 can be a rechargeable battery, which charges the battery pack structure through the power supply device when the power is depleted. Optionally, the second connection end 203 can use a Type-C interface. A connector compatible with a Type-C interface is a more convenient configuration, reducing the likelihood of charging failure due to the lack of a compatible power connector. Optionally, a second connector 211 is provided at the second connection end 203. The second connector 211 is used for plugging into a power supply device.

[0040] See also Figure 3 The battery cell assembly 200 includes a control circuit board, a first conductive sheet 206, and a second conductive sheet 207. The control circuit board is located at the first end of the battery cell body 201, and the first conductive sheet 206 is located between the first end of the battery cell body 201 and the control circuit board. The first end of the battery cell body 201 is electrically connected to the control circuit board through the first conductive sheet 206, and the second end of the battery cell body 201 is electrically connected to the control circuit board through the second conductive sheet 207. Optionally, the first end of the battery cell body 201 is the negative terminal of the battery cell body 201, and the second end of the battery cell body 201 is also the negative terminal of the battery cell body 201. By connecting the negative and positive terminals of the battery cell body 201 to the control circuit board through the first conductive sheet 206 and the second conductive sheet 207, respectively, the control of the internal circuitry of the battery pack structure is achieved.

[0041] Optionally, the control circuit board includes a first circuit board 204 and a second circuit board 205 arranged axially along the housing 110, and the first circuit board 204 and the second circuit board 205 are electrically connected. A first conductive sheet 206 is electrically connected to the first circuit board 204, and a second conductive sheet 207 is electrically connected to the second circuit board 205. By using multi-layer circuit boards, the internal space of the housing 110 can be utilized more efficiently. In this embodiment, the control circuit board includes two circuit boards; in other embodiments, the control circuit board may include three or more circuit boards. Optionally, the negative terminal of the battery cell body 201 is inserted into the housing 110 with the bottom of the housing 110 facing towards it, and the control circuit board is located between the negative terminal of the battery cell body 201 and the bottom plate of the housing 110.

[0042] Furthermore, a first pad 208 is provided between the first end of the battery cell body 201 and the control circuit board. The first pad 208 has a first through hole 2081, and at least a portion of the first conductive sheet 206 is located inside the first through hole 2081 and is electrically connected to the first end of the battery cell body 201.

[0043] Understandably, the first gasket 208 serves to position the first conductive sheet 206. Simultaneously, the first gasket 208 provides cushioning protection for the battery cell body 201, reducing damage caused by impacts or drops. Optionally, the first gasket 208 is approximately circular, with its outer diameter equal to the outer diameter of the battery cell body 201. The through-hole in the center of the first gasket 208 is rectangular. Optionally, the first gasket 208 can be made of rubber or foam, etc. Furthermore, the installation of the first gasket 208 can be selected based on the height of the battery cell body 201. When the height of the battery cell body 201 is large, it is not necessary to use the first gasket 208 to fill the internal space of the outer casing 110.

[0044] Furthermore, the first conductive sheet 206 includes a first sheet structure 2061, a second sheet structure 2062, and a third sheet structure 2063. The first sheet structure 2061 and the third sheet structure 2063 are respectively connected to the two ends of the second sheet structure 2062. The first sheet structure 2061 and the second sheet structure 2062 are arranged vertically, and the third sheet structure 2063 and the second sheet structure 2062 are arranged parallel to each other and have a height difference. The first sheet structure 2061 is electrically connected to the control circuit board. The third sheet structure 2063 is disposed inside the first through hole 2081 and is electrically connected to the first end of the battery cell body 201. The second sheet structure 2062 and the side of the first pad 208 facing away from the battery cell body 201 are in contact.

[0045] Understandably, this structural design of the first conductive sheet 206 enables the connection between the battery cell body 201 and the control circuit board, makes efficient use of the internal space of the housing 110, and results in a compact overall structure. Optionally, the first conductive sheet 206 can be a nickel sheet or other conductive structure.

[0046] Furthermore, the second conductive sheet 207 includes a conductive sheet body 2072, a first connecting portion 2071, and a second connecting portion 2073. The conductive sheet body 2072 is arranged along the axial direction of the battery cell body 201. The first connecting portion 2071 and the second connecting portion 2073 are respectively connected to the two ends of the conductive sheet body 2072 and are respectively arranged perpendicular to the conductive sheet body 2072. The first connecting portion 2071 is connected to the control circuit board, and the second connecting portion 2073 is electrically connected to the second end of the battery cell body 201. The conductive sheet body 2072 is located on the outside of the shock-absorbing pad 300.

[0047] Understandably, this structural design of the second conductive sheet 207 enables the connection between the battery cell body 201 and the control circuit board, makes efficient use of the internal space of the housing 110, and results in a compact overall structure. Optionally, the second conductive sheet 207 can be a nickel sheet or other conductive structure.

[0048] Furthermore, a second gasket 209 is provided at the second end of the battery cell body 201. The second gasket 209 has a second through hole 2091. At least a portion of the first connecting part 2071 is located inside the second through hole 2091 and is electrically connected to the second end of the battery cell body 201.

[0049] Understandably, the second gasket 209 serves to position the second conductive sheet 207. Simultaneously, the second gasket 209 provides cushioning protection for the battery cell body 201, reducing damage caused by impacts or drops. Optionally, the second gasket 209 is approximately circular, with its outer diameter equal to the outer diameter of the battery cell body 201. The through-hole in the center of the second gasket 209 is a rectangular through-hole. Optionally, the second gasket 209 can be made of rubber or foam, etc.

[0050] Furthermore, the second connecting portion 2073 includes a fourth sheet structure 2073a and a fifth sheet structure 2073b that are connected to each other. The fourth sheet structure 2073a is vertically connected to the conductive sheet body 2072. The fifth sheet structure 2073b and the fourth sheet structure 2073a are arranged in parallel and have a height difference. The fifth sheet structure 2073b is located inside the second through hole 2091. The fourth sheet structure 2073a and the side of the second pad 209 that is away from the battery cell body 201 are in contact.

[0051] By setting the second connecting part 2073 in this structural form, the second connecting part 2073 and the second gasket 209 can fit together better, thereby increasing the compactness of the overall structure.

[0052] Furthermore, two first positioning protrusions 204a116 are spaced apart on the outer periphery of the first circuit board 204, and a first slot for placing the conductive sheet body 2072 is formed between the two first positioning protrusions 204a116. By providing the first slot on the first circuit board 204, the conductive sheet body 2072 can be limited, thereby making the overall integrated structure of the battery cell body 201 more compact and stable. Furthermore, two second positioning protrusions 2082116 are spaced apart on the outer periphery of the first pad 208, and a second slot for placing the conductive sheet body 2072 is formed between the two second positioning protrusions 2082116. The first slot and the second slot are arranged opposite each other. By providing the second slot on the first pad 208, the conductive sheet body 2072 can be limited, thereby making the overall integrated structure of the battery cell body 201 more compact and stable. For example, the through hole on the first pad 208 is a rectangular through hole, and the material of the first pad 208 can be rubber or foam, etc. Optionally, the outer periphery of the first pad 208 is provided with a ring rib 2083, which is used to support the first circuit board 204.

[0053] Furthermore, a switch button 213 is provided on the second circuit board 205. Pressing the switch button 213 connects the charging circuit, allowing the power supply device to supply power to the battery pack structure. After the battery is fully charged, pressing the button 213 again disconnects the battery pack structure from the power supply device.

[0054] Furthermore, an indicator light 214 is provided on the second circuit board 205. The indicator light 214 allows the user to easily identify the battery level. Exemplarily, in this embodiment, there are two indicator lights 214. When the battery is depleted, neither indicator light 214 will illuminate. When charging is required, the second connection terminal 203 is connected to the power supply device, and the button 213 is pressed. The first indicator light 214 begins to flash, indicating that charging is in progress and the battery pack's charge level is below 90%. When the battery pack's charge level exceeds 90%, the first indicator light 214 remains constantly lit, while the second indicator light 214 flashes. When the battery is fully charged, both indicator lights 214 remain constantly lit.

[0055] Optionally, a protective cover 212 is fitted onto the second connector 211, and the protective cover 212 is located above the button 213. The protective cover 212 protects the second connection end 203, and the button 213 can be pressed by pressing the protective cover 212. Optionally, the protective cover 212 is made of transparent material, so that the position of the button 213 and the status of the indicator light 214 can be observed. Optionally, the protective cover 212 can be made of silicone, which has a certain degree of elasticity, so the button 213 can be pressed downwards.

[0056] Furthermore, Figure 4 A schematic diagram of the structure of the housing 110 according to an embodiment of the present invention is shown. Figure 5 A schematic diagram of the structure of the cap 120 according to an embodiment of the present invention is shown. See also Figures 4 to 5 A positioning groove 115 for placing the conductive sheet body 2072 is provided axially along the inner wall of the outer casing 110. Understandably, the positioning groove 115 provides space for the installation of the conductive sheet body 2072, and at the same time, placing the conductive sheet body 2072 in the positioning groove 115 can prevent the first conductive sheet 206 from moving after long-term use of the battery pack structure.

[0057] Furthermore, the housing assembly 100 also includes a cover 120, the opening of the cover 120 is provided with a plug-in portion 121, the top of the housing 110 has a mounting port, the outer periphery of the plug-in portion 121 is provided with a locking hole 122, the inner side of the top of the housing 110 is provided with a protrusion, the plug-in portion 121 is plugged into the mounting port, and the locking hole 122 is locked into the protrusion.

[0058] The quick installation of the cover 120 and the outer shell 110 can be achieved through the snap-fit ​​holes 122 and the protrusions. Optionally, the insertion part 121 is a partially open annular structure. The opening provides the insertion part 121 with a certain degree of elasticity, allowing the buckle 114 to snap into the snap-fit ​​hole 122. After the buckle 114 and the snap-fit ​​hole 122 are engaged, the insertion part 121 can automatically spring back. Preferably, multiple buckles 114 are provided, and correspondingly, multiple snap holes 122 are provided. By providing multiple buckles 114, the stability of the connection can be increased. For example, the number of buckles 114 can be two, three, four, or five, etc., depending on the usage requirements, and is not specifically limited here. Preferably, a positioning protrusion 116 is provided inside the opening of the outer shell 110, and the opening on the insertion part 121 is a positioning notch 123. When installing the cover 120, the positioning notch 123 is aligned with the positioning protrusion 116 to complete the insertion. In other words, the positioning notch 123 and the positioning protrusion 116 make it easy for operators to determine the insertion position of the cover 120. In addition, after the cover 120 is inserted into the housing 110, the positioning protrusion 116 opens the positioning notch 123, so that the insertion part 121 is tightened at the mounting opening of the housing 110, ensuring a stable connection between the two and preventing loosening or falling off.

[0059] Furthermore, a handle 124 is provided on the top of the cover 120, and a through hole is formed in the middle of the handle 124. The through hole can be used to thread an anti-slip lanyard. When taking the battery pack structure, the anti-slip lanyard can be put on the wrist to prevent the battery pack structure from slipping out of the hand. Optionally, the shape of the handle 124 can be set according to the usage needs, and no specific limitation is made here.

[0060] Furthermore, this technical solution also provides an electric tool, including the above-mentioned battery pack structure, the electric tool having a battery compartment for mounting the battery pack structure, and the battery pack structure and the electric tool being electrically connected to a connection port.

[0061] Power tools include, but are not limited to, any of the following: lawn mowers, hair dryers, pruning shears, chainsaws, lawn mowers, angle grinders, and electric drills. Of course, power tools may also include other types of tools, and this application embodiment does not limit this. The power tool receives power output from the battery pack structure via a connection port.

[0062] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model 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 utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A battery pack structure, characterized by, The application relates to a battery pack, which comprises the following components: a shell assembly (100) comprising a shell (110) and a cover (120), the cover (120) and the shell (110) being detachably connected; an electric core assembly (200) arranged inside the shell (110), the electric core assembly (200) comprising an electric core body (201); a shock pad (300) arranged at the outer periphery of the electric core body (201).

2. The battery pack structure of claim 1, wherein, The electric core assembly (200) comprises a control circuit board, a first conductive sheet (206) and a second conductive sheet (207), the control circuit board being located at the first end of the electric core body (201), the first conductive sheet (206) being located between the first end of the electric core body (201) and the control circuit board, the first end of the electric core body (201) being electrically connected with the control circuit board through the first conductive sheet (206), and the second end of the electric core body (201) being electrically connected with the control circuit board through the second conductive sheet (207).

3. The battery pack structure of claim 2, wherein, A first gasket (208) is arranged between the first end of the electric core body (201) and the control circuit board, the first gasket (208) being provided with a first through hole (2081), and at least part of the first conductive sheet (206) is located inside the first through hole (2081) and electrically connected with the first end of the electric core body (201).

4. The battery pack structure of claim 3, wherein, The first conductive sheet (206) comprises a first sheet structure (2061), a second sheet structure (2062) and a third sheet structure (2063), the first sheet structure (2061) and the third sheet structure (2063) being respectively connected to the two ends of the second sheet structure (2062), the first sheet structure (2061) and the second sheet structure (2062) being arranged perpendicularly, the third sheet structure (2063) and the second sheet structure (2062) being arranged in parallel and having a height difference, the first sheet structure (2061) being electrically connected with the control circuit board, the third sheet structure (2063) being arranged inside the first through hole (2081) and electrically connected with the first end of the electric core body (201), and the second sheet structure (2062) being in contact with the side of the first gasket (208) which is away from the electric core body (201).

5. The battery pack structure of claim 2, wherein, The second conductive sheet (207) comprises a conductive sheet body (2072), a first connecting part (2071) and a second connecting part (2073), the conductive sheet body (2072) is arranged along the axial direction of the battery body (201), the first connecting part (2071) and the second connecting part (2073) are respectively connected to both ends of the conductive sheet body (2072) and are arranged perpendicularly to the conductive sheet body (2072), the first connecting part (2071) is connected to the control circuit board, the second connecting part (2073) is electrically connected to the second end of the battery body (201), and the conductive sheet body (2072) is located outside the shock pad (300).

6. The battery pack structure of claim 5, wherein, The second end of the battery body (201) is provided with a second gasket (209), the second gasket (209) is provided with a second through hole (2091), and at least part of the first connecting part (2071) is located inside the second through hole (2091) and is electrically connected to the second end of the battery body (201).

7. The battery pack structure of claim 6, wherein, The second connecting part (2073) comprises a fourth sheet structure (2073a) and a fifth sheet structure (2073b) connected to each other, the fourth sheet structure (2073a) is connected perpendicularly to the conductive sheet body (2072), the fifth sheet structure (2073b) is arranged in parallel to the fourth sheet structure (2073a) and has a height difference, the fifth sheet structure (2073b) is located inside the second through hole (2091), and the fourth sheet structure (2073a) contacts the side of the second gasket (209) away from the battery body (201).

8. The battery pack structure of any one of claims 1-7, wherein, The bottom of the shell (110) is provided with a first avoiding opening, the battery assembly (200) further comprises a first connecting end (202) electrically connected to the battery body (201), and the first connecting end (202) is electrically connected to the connecting port of the power tool through the first avoiding opening, so that the battery body (201) supplies power to the power tool.

9. The battery pack structure of any one of claims 1-7, wherein, The battery assembly (200) further comprises a second connecting end (203) electrically connected to the battery body (201), and the bottom of the shell (110) is provided with a second avoiding opening, so that the second connecting end (203) can be electrically connected to the power supply device through the second avoiding opening to supply power to the battery body (201).

10. An electric power tool characterized by comprising: The electric tool comprises a battery compartment for mounting the battery pack structure, and the battery pack structure is electrically connected to the connecting port of the electric tool.

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