Battery assembly for an electric medical device and electric medical device

Abstract

The present invention discloses a battery assembly for an electric medical device and an electric medical device, relating to the technical field of battery assemblies, including an auxiliary battery compartment mechanism, wherein a power supply mechanism is provided inside the auxiliary battery compartment mechanism, a power conversion mechanism is provided below the auxiliary battery compartment mechanism, and a main battery compartment mechanism is provided below the power conversion mechanism, wherein the power supply mechanism includes a lithium battery, a heat dissipation sleeve is fixedly connected to the surface of the lithium battery, and a phase change material storage column is provided inside the heat dissipation sleeve. The present invention adopts the arrangement of a dual battery compartment, namely a main battery compartment and an auxiliary battery compartment. When replacing the battery, the main battery compartment is powered off, and the fast charge and discharge characteristics of the large capacitor are used to temporarily supply power to avoid power outages of the device. At this time, the auxiliary battery compartment starts and gradually takes over the load, and the large capacitor then enters a charging state, forming a seamless transition, avoiding power outages of the bone saw during use, and improving battery life.

Description

Technical Field

[0001] The present invention relates to the technical field of battery assemblies, and in particular to a battery assembly for an electric medical device and the electric medical device. Background Art

[0002] With the continuous development of medical technology, electric medical devices are playing an increasingly important role in modern medicine. However, there are many problems with the battery components used in electric medical devices, which seriously affect the performance and user experience of electric medical devices.

[0003] When the battery components of existing electric medical devices are used to power high-power equipment, the continuous use time is short due to the high power of the equipment, and the batteries need to be replaced frequently. During the battery replacement period, the equipment cannot operate, affecting the progress of the operation. At the same time, the battery components of existing electric medical devices are fixed in size and have low adaptability, making it difficult to adjust the battery pack volume according to different equipment. If a single battery is damaged, the entire battery component needs to be replaced, and individual batteries cannot be replaced individually, which causes certain inconveniences in use. Summary of the Invention

[0004] The present invention provides a battery assembly for an electric medical device and an electric medical device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A battery assembly for an electric medical device and an electric medical device, comprising an auxiliary battery compartment mechanism, wherein a power supply mechanism is arranged inside the auxiliary battery compartment mechanism, a power supply conversion mechanism is arranged below the auxiliary battery compartment mechanism, and a main battery compartment mechanism is arranged below the power supply conversion mechanism. The power supply mechanism comprises a lithium battery, a heat dissipation sleeve is fixedly connected to the surface of the lithium battery, a phase change material storage column is arranged inside the heat dissipation sleeve, an insert is fixedly connected to the surface of the heat dissipation sleeve, a slot is provided on the surface of the heat dissipation sleeve, an end of the heat dissipation sleeve is fixedly connected to a mounting frame, a power supply contact is fixedly connected to the interior of the mounting frame, one end of the power supply contact is fixedly connected to a fuse, and the other end of the fuse is fixedly connected to the pole at the end of the lithium battery.

[0007] A further improvement of the technical solution of the present invention is that the auxiliary battery compartment mechanism includes a accommodating compartment, a first contact plate in contact with the battery assembly is provided on one side of the inner cavity of the accommodating compartment, and a first compartment cover is provided on the other side of the accommodating compartment.

[0008] A further improvement of the technical solution of the present invention is that the main battery compartment mechanism includes a main compartment body with a contact plate provided on the inner wall, a power detection terminal with a display screen provided on the surface is fixedly connected to the surface of the main compartment body, and a second compartment cover is provided on the surface of the main compartment body.

[0009] A further improvement of the technical solution of the present invention is that the second compartment cover includes a cover body, one side of the cover body is fixedly connected to a first spring, one end of the first spring is fixedly connected to a second contact plate that contacts the battery assembly, and the structure of the second compartment cover is the same as that of the first compartment cover.

[0010] A further improvement of the technical solution of the present invention is that: the top of the main compartment body is fixedly connected to a plug-in sleeve, the inner wall of the plug-in sleeve is socketed with the lower end of the mounting shell, the bottom of the inner cavity of the plug-in sleeve is fixedly connected to a second spring, and the top of the second spring is fixedly connected to a connecting contact plate.

[0011] A further improvement of the technical solution of the present invention is that: a connecting piece is plugged into the inner wall of the plug-in sleeve, one end of the connecting piece is fixedly connected to a clamping block, a third spring is sleeved on the surface of the connecting piece, one end of the third spring is fixedly connected to one side of the clamping block, and the other end of the third spring is fixedly connected to the inner wall of the plug-in sleeve.

[0012] A further improvement of the technical solution of the present invention is that: the power supply conversion mechanism includes a power-on plate, the bottom of the power-on plate is overlapped with the top of the connecting contact plate, the top of the power-on plate is connected to a first power supply block with an arc-shaped groove on the surface through a wire, and a second power supply block with an arc-shaped groove on the surface is arranged above the first power supply block, and the second power supply block is electrically connected to the first contact plate through a wire.

[0013] A further improvement of the technical solution of the present invention is that: a conversion contact is overlapped on the inner wall of the arc-shaped groove on the surface of the first power supply block, the surface of the conversion contact is connected to a large capacitor through a wire, the large capacitor is electrically connected to the control button through a wire, and a telescopic rod is fixedly connected to one side of the conversion contact.

[0014] A further improvement of the technical solution of the present invention is that: one end of the telescopic rod is fixedly connected to a pushing block, the surface of the pushing block is slidably connected to the interior of the mounting shell, a fourth spring is movably sleeved on the surface of the telescopic rod, one end of the fourth spring is fixedly connected to one side of the conversion contact block, and the other end of the fourth spring is fixedly connected to the surface of the pushing block.

[0015] A further improvement of the technical solution of the present invention is that it includes the battery assembly for electric medical equipment, the equipment includes a mounting shell, the interior of the mounting shell is fixedly connected to a drive motor, one end of the drive motor shaft is fixedly connected to a bone saw blade, the surface of the mounting shell is provided with a control button for controlling the drive motor, and the surface of the lower end of the mounting shell is provided with a card slot.

[0016] Due to the adoption of the above technical solution, the present invention has the following technical advancements compared to the prior art:

[0017] The present invention provides a battery assembly and an electric medical device for an electric medical device. By setting up a dual battery compartment of a main battery compartment and an auxiliary battery compartment, when replacing the battery, the main battery compartment is powered off and the fast charging and discharging characteristics of the large capacitor are used to temporarily supply power to avoid power outage of the device. At this time, the auxiliary battery compartment starts and gradually takes over the load, and the large capacitor then enters a charging state, forming a seamless transition, avoiding power outage of the bone saw during use and improving the battery life. At the same time, the lithium battery packaging method is a single-cell independent packaging, wrapped in a rectangular structure, containing phase change material with a melting point of 45°C, which improves the heat dissipation effect. At the same time, a plug-in structure is set on the side, and the battery pack size can be freely combined through the plug block and the slot. It can adapt to the main battery compartment and the auxiliary battery compartment at the same time, making it more adaptable. Fuses are set at both poles. When a single lithium battery fails, the remaining batteries can still be used normally. During maintenance, only the corresponding battery needs to be replaced, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the decomposed state structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the side structure of the present invention in a decomposed state;

[0021] Figure 4 This is a schematic diagram of the structure of the electric device of the present invention in a disassembled state;

[0022] Figure 5 This is a schematic diagram of the internal structure of the main battery compartment of the present invention;

[0023] Figure 6 It is a schematic cross-sectional view of the electric device of the present invention;

[0024] Figure 7 It is a partial structural diagram of the power supply conversion mechanism of the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of the bin cover of the present invention;

[0026] Figure 9 For the present invention Figure 5 A in the figure shows the enlarged structural diagram;

[0027] Figure 10 This is a schematic structural diagram of the battery assembly of the present invention in an assembled state;

[0028] Figure 11 This is a schematic diagram of the structure of a single battery assembly of the present invention;

[0029] Figure 12 It is a schematic diagram of the exploded structure of the battery assembly of the present invention.

[0030] In the figure: 11, lithium battery; 12, heat dissipation sleeve; 13, phase change material storage column; 14, plug block; 15, slot; 16, mounting bracket; 17, power contact; 18, fuse; 21, mounting shell; 22, drive motor; 23, bone saw blade; 24, control button; 25, card slot; 31, storage compartment; 32, first contact plate; 33, first compartment cover; 41, main compartment body; 42, power detection terminal; 43, second compartment cover; 431, cover body; 432, first spring; 433, second contact plate; 44, plug sleeve; 45, second spring; 46, connecting contact plate; 47, connector; 48, card block; 49, third spring; 51, power plate; 52, first power supply block; 53, second power supply block; 54, conversion contact; 55, large capacitor; 56, push block; 57, telescopic rod; 58, fourth spring. DETAILED DESCRIPTION

[0031] The present invention is described in further detail below in conjunction with the embodiments: Example

[0032] like Figures 1-12 As shown, the present invention provides a battery assembly for an electric medical device and an electric medical device, including a lithium battery 11, a heat dissipation sleeve 12 is fixedly connected to the surface of the lithium battery 11, a phase change material storage column 13 is arranged inside the heat dissipation sleeve 12, an insert block 14 is fixedly connected to the surface of the heat dissipation sleeve 12, a slot 15 is provided on the surface of the heat dissipation sleeve 12, an end of the heat dissipation sleeve 12 is fixedly connected to a mounting bracket 16, a power supply contact 17 is fixedly connected to the inside of the mounting bracket 16, one end of the power supply contact 17 is fixedly connected to a fuse 18, and the other end of the fuse 18 is fixedly connected to the pole at the end of the lithium battery 11, an auxiliary battery compartment mechanism is provided inside the electric device, a main battery compartment mechanism is provided at the bottom of the electric device, a power conversion mechanism is provided inside the electric device, and the electric device includes a mounting shell 21, a drive motor 22 is fixedly connected to the inside of the mounting shell 21, a bone saw blade 23 is fixedly connected to one end of the rotating shaft of the drive motor 22, a control button 24 for controlling the drive motor 22 is provided on the surface of the mounting shell 21, and a card slot 25 is provided on the surface of the lower end of the mounting shell 21.

[0033] In this embodiment, by plugging the plugs 14 and slots 15 in two adjacent battery cells according to the size of the battery compartment of the electric medical device, and combining multiple battery cells into a battery assembly, the battery assembly is then placed in the main battery compartment and the auxiliary battery compartment, so that the power supply contact 17 contacts the contact plate, and the battery assembly is fixed to the main battery compartment and the auxiliary battery compartment through the first compartment cover 33 and the second compartment cover 43. Under the action of the first spring 432, the second contact plate 433 is pushed against the other end of the battery assembly, thereby improving the tightness of the connection between the power supply contact 17 and the contact plate, so that the battery assembly can supply power. The electricity is more stable. During the power supply process of the lithium battery 11, when the temperature of the lithium battery 11 is too high due to discharge, the phase change material in the phase change material storage column 13 is melted by heat, absorbing the heat generated by the discharge of the lithium battery 11, thereby preventing the temperature of the lithium battery 11 from being too high. When a single lithium battery 11 in the battery assembly fails, the excessive current melts the fuse 18, cutting off the power supply of the failed lithium battery 11, and the remaining lithium batteries 11 can continue to be used normally. When replacing, only the plug 14 needs to be pulled out from the slot 15 to remove the failed lithium battery 11 and replace it without replacing the entire battery assembly. Example

[0034] like Figure 1-12As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a heat dissipation sleeve 12 is fixedly connected to the surface of the lithium battery 11, a phase change material storage column 13 is provided inside the heat dissipation sleeve 12, an insert block 14 is fixedly connected to the surface of the heat dissipation sleeve 12, a slot 15 is provided on the surface of the heat dissipation sleeve 12, an end of the heat dissipation sleeve 12 is fixedly connected to a mounting bracket 16, a power supply contact 17 is fixedly connected to the inside of the mounting bracket 16, one end of the power supply contact 17 is fixedly connected to a fuse 18, and the other end of the fuse 18 is fixedly connected to the pole at the end of the lithium battery 11, an auxiliary battery compartment mechanism is provided inside the electric device, a main battery compartment mechanism is provided at the bottom of the electric device, a power supply conversion mechanism is provided inside the electric device, and the electric device includes a mounting shell 21, a drive motor 22 is fixedly connected to the inside of the mounting shell 21, a bone saw blade 23 is fixedly connected to one end of the rotating shaft of the drive motor 22, and a control button 24 for controlling the drive motor 22 is provided on the surface of the mounting shell 21. A card slot 25 is provided on the surface of the lower end of the mounting shell 21, the auxiliary battery compartment mechanism includes a accommodating compartment 31, one side of the inner cavity of the accommodating compartment 31 is provided with a first contact plate 32 that contacts the battery assembly, and the other side of the accommodating compartment 31 is provided with a first compartment cover 33. The main battery compartment mechanism includes a main compartment body 41 with a contact plate on the inner wall, and the surface of the main compartment body 41 is fixedly connected to a power detection terminal 42 with a display screen on the surface. A second compartment cover 43 is provided on the surface of the main compartment body 41, and the second compartment cover 43 includes a cover body 431, one side of the cover body 431 is fixedly connected to a first spring 432, one end of the first spring 432 is fixedly connected to a second contact plate 433 that contacts the battery assembly, and the structure of the second compartment cover 43 is the same as that of the first compartment cover 33. The top of the main compartment body 41 is fixedly connected to a plug sleeve 44, the inner wall of the plug sleeve 44 is socketed with the lower end of the mounting shell 21, the bottom of the inner cavity of the plug sleeve 44 is fixedly connected to a second spring 45, and the top of the second spring 45 is fixedly connected to a connecting contact plate 46.

[0035] In this embodiment, the battery assembly is fixed to the main battery compartment and the auxiliary battery compartment by the first compartment cover 33 and the second compartment cover 43. Under the action of the first spring 432, the second contact plate 433 is pushed against the other end of the battery assembly, thereby improving the tightness of the connection between the power supply contact 17 and the contact plate, making the power supply of the battery assembly more stable. The bottom of the mounting shell 21 is inserted into the interior of the plug sleeve 44. Under the action of the contact between the bottom of the mounting shell 21 and the arc surface of the card block 48, the card block 48 pushes the connecting member 47 outward and compresses the third spring 49. At the same time, the power-on plate 51 contacts the top of the connecting contact plate 46, pushing the connecting contact plate 46 downward and compressing the second spring 45. When the second spring 45 reacts Under the forceful pushing force, the connecting contact plate 46 is brought into closer contact with the power supply plate 51. When the card slot 25 moves to the side of the card block 48, the card block 48 enters the card slot 25 under the elastic force of the third spring 49, thereby installing the main battery compartment to the bottom of the electric device. The main battery compartment outputs current through the connecting contact plate 46, passes through the power supply plate 51 and enters the conversion contact 54 in contact with the first power supply block 52. Under the guidance of the wire, it enters the large capacitor 55 and supplies power to the drive motor 22 through the control button 24. When in use, hold the electric device in hand, press the control button 24, control the start of the drive motor 22, and drive the bone saw blade 23 to rotate through the drive motor 22 to perform surgical treatment. Example

[0036] like Figure 1-12As shown, based on Example 1, the present invention provides a technical solution: preferably, it includes a lithium battery 11, a heat dissipation sleeve 12 is fixedly connected to the surface of the lithium battery 11, a phase change material storage column 13 is provided inside the heat dissipation sleeve 12, an insert 14 is fixedly connected to the surface of the heat dissipation sleeve 12, a slot 15 is provided on the surface of the heat dissipation sleeve 12, an end of the heat dissipation sleeve 12 is fixedly connected to a mounting bracket 16, an interior of the mounting bracket 16 is fixedly connected to a power supply contact 17, one end of the power supply contact 17 is fixedly connected to a fuse 18, and the other end of the fuse 18 is fixedly connected to the pole at the end of the lithium battery 11, The electric device is provided with an auxiliary battery compartment mechanism inside, a main battery compartment mechanism is provided at the bottom of the electric device, a power supply conversion mechanism is provided inside the electric device, and the electric device includes a mounting shell 21, a driving motor 22 is fixedly connected to the interior of the mounting shell 21, one end of the rotating shaft of the driving motor 22 is fixedly connected to a bone saw blade 23, a control button 24 for controlling the driving motor 22 is provided on the surface of the mounting shell 21, a card slot 25 is provided on the surface of the lower end of the mounting shell 21, a connector 47 is plugged into the inner wall of the plug sleeve 44, one end of the connector 47 is fixedly connected to a card block 48, and the surface of the card block 48 is connected to the card slot. 25 is overlapped, and a third spring 49 is sleeved on the surface of the connector 47. One end of the third spring 49 is fixedly connected to one side of the card block 48, and the other end of the third spring 49 is fixedly connected to the inner wall of the plug sleeve 44. The power conversion mechanism includes a power-on plate 51. The bottom of the power-on plate 51 is overlapped with the top of the connecting contact plate 46. The top of the power-on plate 51 is connected to a first power supply block 52 with an arc-shaped groove on the surface through a wire. A second power supply block 53 with an arc-shaped groove on the surface is provided above the first power supply block 52. The second power supply block 53 is electrically connected to the first contact plate 32 through a wire. A conversion contact 54 is overlapped on the inner wall of the arc-shaped groove on the surface of the power supply block 52. The surface of the conversion contact 54 is connected to a large capacitor 55 through a wire. The large capacitor 55 is electrically connected to the control button 24 through a wire. A telescopic rod 57 is fixedly connected to one side of the conversion contact 54. One end of the telescopic rod 57 is fixedly connected to a push block 56. The surface of the push block 56 is slidably connected to the interior of the mounting shell 21. A fourth spring 58 is movably sleeved on the surface of the telescopic rod 57. One end of the fourth spring 58 is fixedly connected to one side of the conversion contact 54, and the other end of the fourth spring 58 is fixedly connected to the surface of the push block 56.

[0037] In this embodiment, during the power supply process of the main battery compartment, the remaining power of the internal battery assembly is detected through the power detection terminal 42, and the remaining power is displayed on the display screen. When the remaining power is low, the push block 56 is pushed to slide in the mounting shell 21 and push the conversion contact 54 to move. Under the action of the arc groove on the surface of the first power supply block 52, the conversion contact 54 compresses the telescopic rod 57 and the fourth spring 58. When the conversion contact 54 is detached from the first power supply block 52, the power stored in the large capacitor 55 is used to briefly power the drive motor 22, and the push block 56 is continued to be pushed until the conversion is complete. The contact block 54 moves into the arc-shaped groove on the surface of the second power supply block 53. Under the reaction force of the fourth spring 58, the conversion contact block 54 is pushed tightly against the second power supply block 53 to enhance the tightness of the connection. At this time, the battery assembly in the auxiliary battery compartment gradually takes over the load and charges the large capacitor 55, thereby realizing seamless conversion between the main and auxiliary battery compartments. After switching to the auxiliary battery compartment for power supply, the assistant pulls the connecting piece 47 to disengage the card block 48 from the card slot 25. At this time, the main battery compartment can be removed for replacement. After the replacement is completed, the push block 56 is pushed back to its original position to restore to the main battery compartment power supply state, thereby improving battery life and making it more convenient to use.

[0038] The following is a detailed description of the battery components used in electric medical devices and the working principles of electric medical devices.

[0039] like Figure 1-12As shown, when in use, according to the size of the battery compartment of the electric medical device, the plug blocks 14 in the two adjacent battery cells are plugged into the slots 15. After combining multiple battery cells into a battery assembly, the battery assembly is then placed in the main battery compartment and the auxiliary battery compartment, so that the power supply contact 17 contacts the contact plate, and the battery assembly is fixed to the main battery compartment and the auxiliary battery compartment through the first compartment cover 33 and the second compartment cover 43. Under the action of the first spring 432, the second contact plate 433 is pushed against the other end of the battery assembly, thereby improving the tightness of the connection between the power supply contact 17 and the contact plate, making the power supply of the battery assembly more stable, and then the bottom of the mounting shell 21 is plugged into the inside of the plug sleeve 44. Under the action of the contact between the bottom of the mounting shell 21 and the arc surface of the card block 48, the card block 4 8 pushes the connecting piece 47 outward and compresses the third spring 49. At the same time, the power-on plate 51 contacts the top of the connecting contact plate 46, pushing the connecting contact plate 46 downward and compressing the second spring 45. Under the thrust of the reaction force of the second spring 45, the connecting contact plate 46 and the power-on plate 51 are more closely contacted. When the card slot 25 moves to the side of the card block 48, the card block 48 enters the card slot 25 under the elastic force of the third spring 49, thereby installing the main battery compartment to the bottom of the electric device. The main battery compartment outputs current through the connecting contact plate 46, passes through the power-on plate 51 and enters the conversion contact block 54 in contact with the first power supply block 52. Under the guidance of the wire, it enters the large capacitor 55 and then powers the drive motor 22 through the control button 24. When in use, hold the electric device, Press the control button 24 to control the start of the drive motor 22, and the drive motor 22 drives the bone saw blade 23 to rotate for surgical treatment. During the power supply process of the lithium battery 11, when the temperature of the lithium battery 11 is too high due to discharge, the phase change material in the phase change material storage column 13 is melted by heat, absorbing the heat generated when the lithium battery 11 is discharged, and preventing the temperature of the lithium battery 11 from being too high. When a single lithium battery 11 in the battery assembly fails, the excessive current melts the fuse 18, cutting off the power supply of the faulty lithium battery 11, and the remaining lithium batteries 11 can continue to be used normally. When replacing, you only need to pull out the plug 14 from the slot 15 to remove the faulty lithium battery 11 and replace it. There is no need to replace the entire battery assembly. During the power supply process of the main battery compartment, The remaining power of the internal battery assembly is detected through the power detection terminal 42, and the remaining power is displayed on the display screen. When the remaining power is low, the push block 56 is pushed to slide in the mounting shell 21 and push the conversion contact 54 to move. Under the action of the arc groove on the surface of the first power supply block 52, the conversion contact 54 compresses the telescopic rod 57 and the fourth spring 58. When the conversion contact 54 is separated from the first power supply block 52, the power stored in the large capacitor 55 is briefly powered to the drive motor 22. The push block 56 is continued to be pushed until the conversion contact 54 moves into the arc groove on the surface of the second power supply block 53. Under the reaction force of the fourth spring 58, the conversion contact 54 is pushed tightly against the second power supply block 53 to enhance the tightness of their connection.At this time, the battery components in the auxiliary battery compartment gradually take over the load and charge the large capacitor 55, thus achieving seamless switching between the main and auxiliary battery compartments. After switching to the auxiliary battery compartment for power supply, the assistant pulls the connector 47 to disengage the clamping block 48 from the clamping slot 25. At this time, the main battery compartment can be removed for replacement. After the replacement is completed, the push block 56 is returned to its original position to restore the main battery compartment power supply state, thereby improving battery life and making it more convenient to use.

[0040] While the present invention has been generally described above, modifications and improvements are readily apparent to those skilled in the art. Therefore, modifications and improvements that do not depart from the spirit of the present invention are intended to be within the scope of the present invention.

Claims

1. A battery assembly for an electric medical device, including an auxiliary battery compartment mechanism, characterized in that: A power supply mechanism is provided inside the auxiliary battery compartment mechanism, a power supply conversion mechanism is provided below the auxiliary battery compartment mechanism, and a main battery compartment mechanism is provided below the power supply conversion mechanism. The power supply mechanism includes a lithium battery (11), a heat dissipation sleeve (12) is fixedly connected to the surface of the lithium battery (11), a phase change material storage column (13) is provided inside the heat dissipation sleeve (12), an insert block (14) is fixedly connected to the surface of the heat dissipation sleeve (12), a slot (15) is provided on the surface of the heat dissipation sleeve (12), an end of the heat dissipation sleeve (12) is fixedly connected to a mounting frame (16), a power supply contact (17) is fixedly connected to the inside of the mounting frame (16), one end of the power supply contact (17) is fixedly connected to a fuse (18), and the other end of the fuse (18) is fixedly connected to the pole of the end of the lithium battery (11), and the power supply conversion mechanism includes a power supply plate (51), the bottom of the power supply plate (51) is overlapped with the top of the connection contact plate (46), and the top of the power supply plate (51) is connected through A first power supply block (52) having an arc-shaped groove on its surface is connected to the first power supply block (52), a second power supply block (53) having an arc-shaped groove on its surface is provided above the first power supply block (52), the second power supply block (53) is electrically connected to the first contact plate (32) through the wire, a conversion contact (54) is overlapped on the inner wall of the arc-shaped groove on the surface of the first power supply block (52), the surface of the conversion contact (54) is connected to a large capacitor (55) through the wire, the large capacitor (55) is electrically connected to the control button (24) through the wire, one side of the conversion contact (54) is fixedly connected to a telescopic rod (57), one end of the telescopic rod (57) is fixedly connected to a push block (56), the surface of the push block (56) is slidably connected to the inside of the mounting shell (21), the surface of the telescopic rod (57) is movably sleeved with a fourth spring (58), one end of the fourth spring (58) is fixedly connected to one side of the conversion contact (54), and the other end of the fourth spring (58) is fixedly connected to the surface of the push block (56).

2. The battery assembly for electric medical devices according to claim 1, characterized in that: The auxiliary battery compartment mechanism comprises a accommodating compartment (31), a first contact plate (32) in contact with the battery assembly being provided on one side of an inner cavity of the accommodating compartment (31), and a first compartment cover (33) being provided on the other side of the accommodating compartment (31).

3. The battery assembly for electric medical devices according to claim 1, characterized in that: The main battery compartment mechanism comprises a main compartment body (41) with a contact plate provided on the inner wall, a power detection terminal (42) with a display screen provided on the surface fixedly connected to the surface of the main compartment body (41), and a second compartment cover (43) provided on the surface of the main compartment body (41).

4. The battery assembly for an electric medical device according to claim 3, characterized in that: The second compartment cover (43) comprises a cover body (431), one side of the cover body (431) is fixedly connected to a first spring (432), one end of the first spring (432) is fixedly connected to a second contact plate (433) in contact with the battery assembly, and the structure of the second compartment cover (43) is the same as that of the first compartment cover (33).

5. The battery assembly for electric medical devices according to claim 3, characterized in that: The top of the main compartment body (41) is fixedly connected to a plug sleeve (44), the inner wall of the plug sleeve (44) is sleeved with the lower end of the mounting shell (21), the bottom of the inner cavity of the plug sleeve (44) is fixedly connected to a second spring (45), and the top of the second spring (45) is fixedly connected to a connecting contact plate (46).

6. The battery assembly for electric medical devices according to claim 5, characterized in that: A connecting piece (47) is plugged into the inner wall of the plug sleeve (44), one end of the connecting piece (47) is fixedly connected to a clamping block (48), a third spring (49) is sleeved on the surface of the connecting piece (47), one end of the third spring (49) is fixedly connected to one side of the clamping block (48), and the other end of the third spring (49) is fixedly connected to the inner wall of the plug sleeve (44).

7. An electric medical device, characterized in that: A battery assembly for an electric medical device according to any one of claims 1 to 6, the device comprising a mounting shell (21), a driving motor (22) being fixedly connected to the interior of the mounting shell (21), a bone saw blade (23) being fixedly connected to one end of a rotating shaft of the driving motor (22), a control button (24) for controlling the driving motor (22) being provided on the surface of the mounting shell (21), and a card slot (25) being provided on the surface of the lower end of the mounting shell (21).

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