Battery pack mount, battery pack assembly, and surgical instrument

Abstract

The application provides a battery pack mounting seat, a battery pack assembly and a surgical instrument. The battery pack mounting seat comprises a bottom plate and a mounting portion. The mounting portion protrudes from one side surface of the bottom plate. The mounting portion comprises a first surface and a second surface extending in a first direction. The first surface and the second surface are oppositely arranged in a second direction. The first surface is provided with a battery pack matching structure. The second surface is asymmetrically arranged with the first surface. The battery pack matching structure is arranged on the first surface of the mounting portion of the battery pack mounting seat. The battery pack mounting seat is compatible with disposable battery packs and rechargeable battery packs. The second surface of the mounting portion is asymmetrically arranged with the first surface. The mounting direction of the rechargeable battery pack is prevented from being mistaken. The assembly efficiency and safety are improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to a battery pack mounting base, a battery pack assembly, and a surgical instrument. Background Technology

[0002] Electric surgical instruments, such as electric staplers, are increasingly widely used. Surgical instruments generally use two types of battery packs: disposable and rechargeable. Disposable battery packs can be inserted into instruments in either direction without affecting their operation; however, the internal structure of rechargeable battery packs dictates that they cannot be inserted in either direction. Insertion in the correct orientation can damage the battery pack or the instrument structure. Therefore, anti-reverse insertion mechanisms are required at the instrument end for rechargeable battery packs. However, existing anti-reverse insertion mechanisms for rechargeable battery packs interfere with the insertion of disposable batteries, preventing the use of the same instrument with both types of battery packs. Each surgical instrument can only use either a disposable or rechargeable battery pack. Utility Model Content

[0003] To address the problems in the prior art, the purpose of this application is to provide a battery pack mounting base, a battery pack assembly, and a surgical instrument. The battery pack mating structure is provided only on the first surface of the mounting portion of the battery pack mounting base, which is compatible with both disposable and rechargeable battery packs. The second surface of the mounting portion is asymmetrically arranged with respect to the first surface to prevent incorrect installation orientation of the rechargeable battery pack, thereby improving assembly efficiency and safety.

[0004] The first aspect of this application provides a battery pack mounting base, including a base plate and a mounting portion. The mounting portion protrudes from one side surface of the base plate. The mounting portion includes a first surface and a second surface extending along a first direction. The first surface and the second surface are disposed opposite to each other along a second direction. The first surface is provided with a battery pack mating structure. The second surface and the first surface have an asymmetrical structure.

[0005] In some embodiments, the battery pack mating structure includes a protruding structure.

[0006] In some embodiments, the protrusion structure includes at least one protruding ridge extending along a first direction.

[0007] In some embodiments, the length of the protrusion along the first direction is less than or equal to the length of the first surface along the first direction.

[0008] In some embodiments, the protrusion structure includes a plurality of protruding ridges, which are spaced apart along a third direction, or the plurality of protruding ridges are spaced apart along a first direction.

[0009] In some embodiments, the mounting base further includes two conductive structural support portions, which are located on both sides of the mounting portion along a third direction.

[0010] A second aspect of this application provides a battery pack assembly, including a battery pack and a battery pack mounting base as described in the first aspect. The battery pack has a receiving cavity that accommodates the mounting portion of the battery pack mounting base.

[0011] In some embodiments, the receiving cavity includes two surfaces disposed opposite to each other, wherein at least one surface is provided with a limiting structure.

[0012] In some embodiments, the limiting structure includes a groove structure.

[0013] A third aspect of this application provides a surgical instrument, including a battery pack mounting base of the first aspect or a battery pack assembly of the second aspect.

[0014] The battery pack mounting bracket, battery pack assembly, and surgical instruments provided in this application have the following advantages:

[0015] This application provides a battery pack mating structure only on the first surface of the mounting portion of the battery pack mounting base, which is compatible with both disposable and rechargeable battery packs, allowing the same surgical instrument to use either a disposable or rechargeable battery pack as needed. At the same time, the second surface of the mounting portion is asymmetrically arranged with the first surface to prevent incorrect installation orientation of the rechargeable battery pack, thereby improving assembly efficiency and safety. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a battery pack mounting base according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the structure of a battery pack mounting bracket according to an embodiment of this application from another perspective;

[0019] Figure 3 This is a schematic diagram of the structure of a battery pack according to this application;

[0020] Figure 4 This is a top view of a battery pack according to this application;

[0021] Figure 5 This is a top view of another battery pack in this application;

[0022] Figure 6 This is a schematic diagram of the internal cell connections of a disposable battery pack.

[0023] Figure 7 This is a schematic diagram of the internal cell connections of a rechargeable battery pack;

[0024] Figure 8This is a schematic diagram of the arrangement of conductive sheets on a battery pack mounting base according to an embodiment of this application.

[0025] Figure label:

[0026] 1-Battery pack mounting base; 11-Base plate; 12-Mounting part; 121-First surface; 122-Second surface; 125-Battery pack mating structure; 126-Conductive structure support part;

[0027] 2-Battery pack; 21-Housing shell; 211-Receiving cavity; 212-Receiving cavity; 213-Limiting structure;

[0028] 31-First conductive sheet; 32-Second conductive sheet; 33-Third conductive sheet; 41-One end of the third conductive sheet; 42-One end of the second conductive sheet. Detailed Implementation

[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted. The words “or” and “or” in the specification may mean “and” or “or”. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this application. Although “first” or “second” is used in this specification to denote certain features, it is only for indication of function and not as a limitation on the number or importance of specific features.

[0030] like Figure 1 and Figure 2 As shown in the figure, this application embodiment provides a battery pack mounting base 1. The battery pack mounting base 1 is disposed on a surgical instrument for mounting a battery pack to be used on the surgical instrument. The battery pack mounting base 1 includes a base plate 11 and a mounting portion 12. The mounting portion 12 protrudes from one side surface of the base plate 11. The mounting portion 12 includes a first surface 121 and a second surface 122 extending along a first direction. The first surface 121 and the second surface 122 are disposed opposite to each other along a second direction. The first surface 121 is provided with a battery pack mating structure 125. The second surface 122 and the first surface 121 have an asymmetrical structure. Here, the second surface 122 and the first surface 121 have an asymmetrical structure, meaning that the second surface 122 and the first surface 121 have an asymmetrical structure with respect to a first plane. This first plane passes through the central axis of the mounting portion 12 and is parallel to the first surface 121 and the second surface 122.

[0031] This application provides a battery pack mating structure 125 only on the first surface 121 of the mounting portion 12 of the battery pack mounting base 1, which is compatible with both disposable and rechargeable battery packs. This allows the same surgical instrument to be used with either a disposable or rechargeable battery pack as needed. The second surface 122 of the mounting portion 12 is asymmetrically arranged with the first surface 121 to prevent incorrect installation orientation of the rechargeable battery pack and improve assembly efficiency and safety.

[0032] like Figure 1 As shown, in this embodiment, the first direction D1 is the battery pack insertion direction. The second direction D2 and the third direction D3 are perpendicular to the first direction D1. Optionally, the first direction D1 is perpendicular to the base plate 11, that is, the mounting part 12 is disposed perpendicular to the base plate 11, and the plane formed by the second direction D2 and the third direction D3 is parallel to the surface of the base plate 11. Figure 1 and Figure 2 As shown, the mounting part 12 can be a square column structure, which includes a first surface 121 and a second surface 122 opposite to each other along a second direction, and also includes two side surfaces opposite to each other along a third direction.

[0033] like Figure 1 and Figure 2 As shown, in this embodiment, the battery pack mating structure 125 includes a protruding structure, and the second surface 122 is a plane, that is, the second surface 122 does not have a protruding structure. By providing a protruding structure only on the first surface 121, while the second surface 122 is entirely a smooth plane, the first surface 121 and the second surface 122 are asymmetrically arranged. In other embodiments, the second surface 122 may also be an arc surface, a curved surface, a wavy surface, or other shapes. Optionally, the protruding structure includes at least one protruding ridge extending along a first direction, which extends from the top side of the first surface 121 to the bottom side of the first surface 121. When the battery pack is inserted into the battery pack mounting base 1, the protruding ridge provides continuous guidance for the battery pack. This application is not limited thereto. In other alternative embodiments, the protrusion structure may also include more than one protrusion, for example, multiple protrusions spaced apart along a first direction to provide intermittent guidance and restraint during battery pack insertion; or, multiple protrusions spaced apart along a third direction to simultaneously provide guidance and restraint for the battery pack; the length of each protrusion along the first direction is equal to the length of the first surface 121 along the first direction, or the length of the protrusion along the first direction may be less than the length of the first surface 121 along the first direction.

[0034] like Figure 1 and Figure 2As shown, in this embodiment, the battery pack mounting base 1 further includes two conductive structure support portions 126, which are respectively located on both sides of the mounting portion 12 along a third direction. The conductive structure support portions 126 are used to mount conductive structures (such as one or more conductive sheets), through which electrical energy from the battery pack can be transmitted to the internal electrical components of the surgical instrument. Optionally, the two conductive structure support portions 126 are connected to the two opposing side surfaces of the mounting portion 12 along a third direction, and the two conductive structure support portions 126 are connected to the middle position of the mounting portion 12 along a second direction. Figure 8 The example illustrates the structure of the conductive sheet on the conductive structure support in this embodiment. A first conductive sheet 31 is provided on one side of the conductive structure support, and a second conductive sheet 32 ​​and a third conductive sheet 33 are provided on the other side of the conductive structure support. One end 41 of the third conductive sheet 33 is used to connect to the negative terminal of the battery pack, and one end 42 of the second conductive sheet 32 ​​is used to connect to the positive terminal of the battery pack.

[0035] This application embodiment also provides a battery pack assembly, including a battery pack and a battery pack mounting base 1, wherein the battery pack is detachably connected to the battery pack mounting base 1. Figure 3 and Figure 4 An exemplary structure of a battery pack 2 is shown. Figure 5 An exemplary structure of another battery pack 2 is shown. For example... Figures 3-5 As shown, the battery pack 2 includes a housing 21 and at least one battery cell (not shown) housed inside the housing 21. The housing 21 has a receiving cavity 211, which houses the mounting portion 12 of the battery pack mounting base 1. When surgical instruments are inserted into the battery pack 2, the battery pack 2 and the battery pack mounting base 1 are assembled along a first direction, and the mounting portion 12 of the battery pack mounting base 1 is inserted into the receiving cavity 211 of the battery pack 2.

[0036] In this embodiment, the receiving cavity 211 includes two surfaces arranged opposite each other, at least one surface having a limiting structure 213. These two oppositely arranged surfaces are defined here as a third surface and a fourth surface. Figure 3From the perspective of [the image], the third surface of the receiving cavity 211 is the lower surface of the receiving cavity 211, and the fourth surface of the receiving cavity 211 is the upper surface of the receiving cavity 211. After the battery pack 2 is connected to the battery pack mounting base 1, the mounting part 12 of the battery pack mounting base 1 is inserted into the receiving cavity 211. When the battery pack 2 is installed upright, the third surface of the receiving cavity 211 mates with the first surface 121 of the mounting part 12, and the fourth surface mates with the second surface 122 of the mounting part 12. The third surface is provided with a limiting structure 213, which mates with the battery pack mating structure 125 provided on the first surface 121 of the mounting part 12. For the non-reversible battery pack 2, this is the only mating method. For the reversible battery pack 2, when the battery pack 2 is installed backwards, the fourth surface of the receiving cavity 211 mates with the first surface 121 of the mounting part 12, and the third surface mates with the second surface 122 of the mounting part 12.

[0037] In this embodiment, the battery pack mating structure 125 is a protruding structure, and the limiting structure 213 includes a groove structure adapted to the shape of the protruding structure. For example... Figure 3 and Figure 4 As shown, in one type of battery pack 2, the fourth surface of the receiving cavity 211 is a plane, meaning that in this type of battery pack 2, only one side surface of the receiving cavity 211 has a groove structure that can fit into the battery pack mating structure 125. In other embodiments, the fourth surface of the receiving cavity 211 can also be other shapes such as an arc surface, a curved surface, or a wavy surface. Figure 5 As shown, in another type of battery pack 2, the fourth surface of the receiving cavity 211 is also provided with a limiting structure 213, that is, in this type of battery pack 2, the two sides of the receiving cavity 211 are respectively provided with groove structures that can fit into the battery pack mating structure 125.

[0038] like Figure 3 and Figure 4 As shown, this type of battery pack 2 is non-reversible. That is, if the battery pack 2 is installed backwards onto the battery pack mounting base 1, it will not be able to conduct electricity properly and may damage the battery pack 2 or the device structure. In this non-reversible battery pack 2, the third surface of the receiving cavity 211 has a groove structure that engages with the protrusion structure of the mounting part 12, and the fourth surface is a plane. When the battery pack 2 and the battery pack mounting base 1 are connected, the groove structure engages with the protrusion structure. Under the constraint of this engagement structure, the battery pack 2 can only be combined with the battery pack mounting base 1 in one fixed direction. If the battery pack 2 is installed backwards, the fourth surface faces the first surface 121 of the mounting part 12. At this time, the plane of the fourth surface and the protrusion structure of the first surface 121 will form an obstruction, preventing the battery pack 2 from being successfully installed into the battery pack mounting base 1, thus avoiding damage to the battery pack 2 or the device structure caused by reverse installation.

[0039] like Figure 5As shown, this type of battery pack 2 is reversible, meaning that the battery pack 2 can achieve normal electrical conduction regardless of whether it is installed upright or backward onto the battery pack mounting base 1, without damaging the battery pack 2 or the instrument structure. In this reversible battery pack 2, the third and fourth surfaces of the receiving cavity 211 are both provided with groove structures. When the battery pack 2 is connected to the battery pack mounting base 1 in the upright direction, the groove structure of the third surface of the receiving cavity 211 engages with the protrusion structure of the mounting part 12, while the groove structure of the fourth surface of the receiving cavity 211 engages with the plane of the second surface 122 of the mounting part 12. Since there is no obstruction between the groove structure and the plane, the battery pack 2 can be smoothly installed into the surgical instrument in the upright direction. When the battery pack 2 is connected to the battery pack mounting base 1 in the reverse direction, the groove structure of the fourth surface of the receiving cavity 211 cooperates with the protrusion structure of the mounting part 12, and the groove structure of the third surface of the receiving cavity 211 cooperates with the plane of the second surface 122 of the mounting part 12. Since there is no obstruction between the groove structure and the plane, the battery pack 2 can be smoothly installed into the surgical instrument in the reverse direction, thus not restricting the installation direction of the battery pack 2.

[0040] Therefore, this application makes the insertion guide structure (installation part 12) of the battery pack mounting base 1 into an asymmetrical structure, which fits well with the reversible battery and does not affect the insertion of the reversible battery in both directions; and by the cooperation between the limiting structure 213 of the non-reversible battery pack 2 and the battery pack mating structure 125, the non-reversible battery pack 2 can only be inserted into the surgical instrument in one fixed direction, without damaging the instrument or the structure of the battery pack 2 due to reverse installation.

[0041] like Figures 3-5 As shown, two receiving cavities 212 are also provided on both sides of the receiving cavity 211 to accommodate the conductive structure support part 126 of the battery pack mounting base 1. The interior of the receiving cavity 212 is provided with conductive elements for electrical connection with the conductive structure on the battery pack mounting base 1.

[0042] Optionally, Figure 3 and Figure 4 The battery pack 2 shown is a rechargeable battery pack. For example, the internal cell structure of a rechargeable battery pack can be found in [reference needed]. Figure 6 . Figure 6 Let's take a rechargeable battery pack with four cells as an example. Figure 6 In the diagram, each rectangular block represents a battery cell, with "+" indicating the positive terminal and "-" indicating the negative terminal. The four cells in a rechargeable battery pack are connected in series, with only one positive terminal and one negative terminal connected externally. Figure 8As can be seen, when connecting the battery pack 2 and its base, the positive terminal of the rechargeable battery pack must be connected to one end 42 of the second conductive plate 32, and the negative terminal of the rechargeable battery pack must be connected to one end 41 of the third conductive plate 33. Neither the positive nor negative terminal of the rechargeable battery pack can be connected to the first conductive plate 31. Therefore, the rechargeable battery pack can only be connected to the battery pack mounting base 1 in a fixed direction. If the battery pack is installed backwards, it may not only damage the battery pack and the instrument structure but also prevent the power supply circuit from conducting smoothly.

[0043] Optionally, Figure 5 The battery pack 2 shown is a disposable battery pack. The internal cell structure of a disposable battery pack can be seen, for example, in [reference needed]. Figure 7 . Figure 7 Taking a disposable battery pack with two sets of cells connected in series as an example, each set of cells includes two cells connected in series. Therefore, each side of the disposable battery pack has a positive terminal and a negative terminal connected to the outside. Figure 7 In the diagram, each rectangular block represents a battery cell, with "+" indicating the positive terminal of the battery pack and "-" indicating the negative terminal. Combined with... Figure 8 As can be seen, when connecting the battery pack 2 and the battery mounting base, regardless of whether the disposable battery pack is installed upright or reversed, it ensures that one positive terminal of the disposable battery pack is connected to one end 42 of the second conductive plate 32, and one negative terminal of the disposable battery pack is connected to one end 41 of the third conductive plate 33. Simultaneously, the first conductive plate 31 connects the other positive and the other negative terminals of the disposable battery pack, forming a series power supply circuit. Therefore, the disposable battery pack can be connected to the battery pack mounting base 1 in two different directions.

[0044] This application also provides a surgical instrument, including the aforementioned battery pack mounting base 1 or battery pack assembly. By providing an asymmetrical structure in the mounting portion 12 of the battery pack mounting base 1, and a battery pack mating structure 125 on the first surface 121 of the mounting portion 12, this application is compatible with both disposable and rechargeable battery packs. This allows the same surgical instrument to use either a disposable or rechargeable battery pack as needed, while preventing incorrect installation orientation of the rechargeable battery pack, thus improving assembly efficiency and safety.

[0045] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A battery pack mounting bracket, characterized in that, The device includes a base plate and a mounting portion. The mounting portion protrudes from one side surface of the base plate. The mounting portion includes a first surface and a second surface extending along a first direction. The first surface and the second surface are arranged opposite to each other along a second direction. The first surface is provided with a battery pack mating structure. The second surface and the first surface have an asymmetrical structure.

2. The battery pack mounting bracket according to claim 1, characterized in that, The battery pack mating structure includes a protruding structure.

3. The battery pack mounting bracket according to claim 2, characterized in that, The protruding structure includes at least one protruding ridge extending along the first direction.

4. The battery pack mounting bracket according to claim 3, characterized in that, The length of the protruding ridge along the first direction is less than or equal to the length of the first surface along the first direction.

5. The battery pack mounting bracket according to claim 3, characterized in that, The protruding structure includes multiple protruding ridges, which are spaced apart along a third direction, or the multiple protruding ridges are spaced apart along the first direction.

6. The battery pack mounting bracket according to claim 1, characterized in that, The mounting base also includes two conductive structural support portions, which are located on both sides of the mounting portion along a third direction.

7. A battery pack assembly, characterized in that, The device includes a battery pack and a battery pack mounting base according to any one of claims 1 to 6, wherein the battery pack has a receiving cavity that accommodates the mounting portion of the battery pack mounting base.

8. The battery pack assembly according to claim 7, characterized in that, The receiving cavity includes two surfaces arranged opposite each other, wherein at least one surface is provided with a limiting structure.

9. The battery pack assembly according to claim 8, characterized in that, The limiting structure includes a groove structure.

10. A surgical instrument, characterized in that, Includes the battery pack mounting base according to any one of claims 1 to 6 or the battery pack assembly according to claim 7.

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