Electric field generating device and battery assembly thereof

Abstract

The utility model provides an electric field generating device and a battery assembly thereof, the battery assembly comprises a shell, a battery core located in the shell and a locking device, the shell is provided with a through hole, and the locking device is provided with a clamping tongue protruding out of the shell through the through hole. The locking device comprises an operation part, a locking part, a rotating shaft and a lever, the operation part is located outside the battery assembly, the locking part is provided with the clamping tongue, the rotating shaft is in transmission connection with the operation part and is provided with a pushing part, and the lever is provided with a first end and a second end which are opposite. The operating part drives the rotating shaft to rotate when being stressed to rotate, the pushing part pushes the second end to drive the first end to rotate, and the first end drives the locking part to move to enable the clamping tongue to retract into the shell. According to the electric field generating device and the battery assembly thereof, the battery assembly is provided with the locking device with the operation part, and the clamping tongue can be retracted into the shell through the operation part and can be smoothly withdrawn from the battery assembly.

Description

Technical Field

[0001] The present application relates to an electric field generating device and a battery assembly thereof for an electric field therapy device. Background Art

[0002] A common electric field therapy device used for electric field therapy of tumors includes an electric field generator and paired electrode patches. The electrode patches are applied to the patient's body surface at the tissue area where the lesion is located. The electric field generator provides an alternating current signal and transmits the AC signal to the electrode patches to generate an alternating electric field between each pair of electrode patches, thereby treating the tissue area where the lesion is located. A common electric field generator includes a housing, a main control board, a battery assembly, and a stylus plate assembly. The housing compartment is separated by a partition into a main control board compartment and a main battery compartment, which respectively accommodate the main control board and the battery assembly. The stylus plate assembly is located at the bottom of the battery compartment and electrically connects the battery assembly and the main control board to power the main control board. The battery assembly is secured by a retractable latch assembly that locks with the corresponding structure of the main battery compartment. Existing battery assembly latches are unlocked by pushing the latch assembly with hard contact to retract the latch assembly when exiting the main battery compartment. This can cause problems such as lag during the push-to-unlock process, preventing smooth exit. Furthermore, it is difficult to remove the battery from the main battery compartment simultaneously during the unlocking process.

[0003] Therefore, there is a need to improve the existing electric field generating device and its battery assembly. Utility Model Content

[0004] The present application provides an electric field generating device and a battery assembly thereof, wherein the battery assembly can smoothly exit the electric field generating device.

[0005] Specifically, the present application is implemented through the following technical solutions: a battery assembly, which includes a shell, a battery core located in the shell and a locking device, the shell is provided with a through hole, the locking device is provided with a tongue protruding from the shell through the through hole, the locking device includes an operating part, a locking part, a rotating shaft and a lever, the operating part is located on the outside of the battery assembly, the locking part is provided with the tongue, the rotating shaft is transmission-connected to the operating part and is provided with a pushing part, and the lever is provided with a first end and a second end relative to each other; when the operating part is rotated under force, the rotating shaft is driven to rotate with it, the pushing part pushes the second end to drive the first end to rotate, and the first end drives the locking part to move so that the tongue is retracted into the shell.

[0006] Furthermore, the locking portion is provided with a main body and a protrusion extending upward from the main body, the latch is located at the top of the protrusion, the main body is horizontally arranged, the first end of the lever is located directly above the main body, the pushing portion is located on the bottom side of the rotating shaft and pushes up the second end when the rotating shaft rotates so that the first end presses down the locking portion.

[0007] Furthermore, the operating part includes a pair of support arms and a horizontal arm connecting the pair of support arms. The locking device is provided with a transmission pin and a screw corresponding to the support arm. One end of the transmission pin is transmission-connected to the support arm, and the other end is transmission-connected to the end of the rotating shaft. The screw passes through the transmission pin and is fixed to the rotating shaft.

[0008] Furthermore, the shell is provided with two side walls arranged opposite to each other on the left and right sides, the side walls are provided with through holes, the rotating shaft is located between the two side walls, and the transmission pin passes through the support arm and the through holes and is fixed to the rotating shaft.

[0009] Furthermore, the shell is provided with a connecting wall connecting the two side walls, the connecting wall is provided with a lower recess, and the cross arm is located below the connecting wall and forms a notch together with the lower recess.

[0010] Furthermore, the shell includes an upper shell and a lower shell, the upper shell is provided with two support ribs arranged front and back along the length direction of the lever corresponding to the lever, the support ribs are provided with support grooves, the lever is provided with a pivot shaft located between the first end and the second end, the pivot shaft is supported in the support groove, and the lever is limited between the two support ribs.

[0011] Furthermore, the lower shell is provided with a limiting rib located directly below the pivot axis.

[0012] Furthermore, the main body is provided with a plurality of notches located at its edge, and the shell is provided with a plurality of guide posts that cooperate with the notches to guide the movement of the locking portion.

[0013] Furthermore, the locking device is provided with a spring located between the housing and the locking portion, and the locking portion is provided with an assembly column for the spring to be sleeved.

[0014] The present application also provides the following technical solution: an electric field generating device, comprising a main body and the aforementioned battery assembly, wherein the main body is provided with a battery compartment for accommodating the battery assembly, and the inner wall of the battery compartment is provided with a card hole that engages with the card tongue.

[0015] The electric field generating device and its battery assembly of the present application are provided with a locking device having an operating portion, through which the tongue can be retracted into the shell, and the battery assembly can be smoothly withdrawn.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a block diagram of an electric field therapy device according to one embodiment of the present application;

[0018] Figure 2 is a three-dimensional combined diagram of an electric field generating device of an electric field therapy apparatus according to one embodiment of the present application;

[0019] Figure 3 for Figure 2 A three-dimensional composite diagram of the main body of the electric field generating device shown;

[0020] Figure 4 for Figure 2 A three-dimensional assembly diagram of a battery assembly of the electric field generating device shown;

[0021] Figure 5 for Figure 4 A three-dimensional combined diagram of the battery assembly in another state;

[0022] Figure 6 for Figure 4 A partially exploded perspective view of the battery assembly shown;

[0023] Figure 7 for Figure 6 A three-dimensional assembly diagram of the locking device of the battery assembly shown;

[0024] Figure 8 for Figure 7 A three-dimensional combined view of another state of the locking device of the battery assembly shown;

[0025] Figure 9 for Figure 6 An exploded perspective view of the lower housing and locking mechanism of the battery assembly shown;

[0026] Figure 10 for Figure 6 A three-dimensional view of the upper shell of the battery assembly is shown.

[0027] Description of reference numerals:

[0028] Electric field therapy device 1000, electric field generating device 100, adapter 200, electrode patch 300, main body 20, upper shell 21, lower shell 22, battery compartment 23, card hole 24, battery assembly 10, upper shell 11, through hole 111, upper partition 112, side wall 113, through hole 1131, recess 1132, connecting wall 114, lower recess 1141, notch 1142, support rib 115, support groove 1151, guide column 1152, lower shell 12, lower partition 121, limiting rib 122, label 123, battery cell 13, receiving cavity 1 4. Front cavity 141, rear cavity 142, locking device 15, latch 150, operating portion 151, support arm 1511, cross arm 1512, mating hole 1513, retaining rib 1514, locking portion 152, body 1521, boss 1522, assembly post 1523, notch 1524, rotating shaft 153, pushing portion 1531, groove 1532, transmission pin 154, retaining slot 1541, retaining strip 1542, lever 155, first end 1551, second end 1552, pivot shaft 1553, screw 156, spring 157, torsion spring 158. DETAILED DESCRIPTION

[0029] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices, systems, apparatus, and methods consistent with certain aspects of the present application.

[0030] refer to Figures 1 to 2 As shown, the present application provides an electric field therapy device 1000 including an electric field generating device 100, an adapter 200 and multiple pairs of electrode patches 300 arranged in pairs. The adapter 200 is electrically connected to the electric field generating device 100 and the electrode patch 300. The electric field generating device 100 generates an alternating current signal required for treatment. The adapter 200 receives the alternating current signal generated by the electric field generating device 100 and transmits the alternating current signal to the electrode patch 300. The electrode patch 300 is applied to the surface of the patient's body corresponding to the tumor area, and the alternating current signal is applied to the patient's tumor area for tumor electric field therapy.

[0031] The electric field generating device 100 includes a battery assembly 10 and a main body 20. The main body 20 is provided with a main control board (not shown) and a fan (not shown). The battery assembly 10 is arranged in the main body 20 to supply power to the main control board (not shown) and the fan (not shown). Figure 3As shown, the main body 20 includes an upper shell 21 and a lower shell 22, which together form a battery compartment 23 for accommodating the battery assembly 10. The inner wall of the battery compartment 23 is provided with a latch hole 24, which is used to lock with the latch tongue 150 of the battery assembly 10 to lock the battery assembly 10 in the battery compartment 23.

[0032] The following combination Figures 4 to 10 The specific structure of the battery pack 10 will be described.

[0033] refer to Figures 4 to 6 As shown, the battery assembly 10 includes an upper shell 11, a lower shell 12, and a battery cell 13. When assembled and covered, the lower shell 12 and the upper shell 11 form a housing (not numbered) and a receiving cavity 14 within the housing (not numbered). The battery cell 13 is received within the receiving cavity 14. The battery assembly 10 also includes a locking device 15 disposed at its front end. The locking device 15 includes an operating portion 151 exposed at the front end of the battery assembly 10 and a locking portion 152 that is interlocked with the operating portion 151 and located within the receiving cavity 14. An operator can operate the operating portion 151 to move the locking portion 152 up and down. The locking portion 152 includes the aforementioned latch 150. A through hole 111 is provided on the top surface of the upper shell 11 corresponding to the latch 150. The latch 150 protrudes from the top surface of the upper shell 11 through the through hole 111 and is capable of elastically moving up and down. The bottom surface of the lower shell 12 is also provided with a label 123 for indicating a switch button, displaying the battery level of the battery assembly 10, and the like. A first sealing ring (not shown) may be provided on the outside of the housing (not numbered) of the battery assembly 10 to ensure a contact and sealing connection between the main body 20 and the battery compartment 23 .

[0034] The operating portion 151 is an operating portion in this embodiment. In the natural state, the operating portion is in Figure 4 In the upright state, the latch 150 protrudes out of the upper shell 11, and the side of the latch 150 facing the insertion end of the battery assembly 10 is an inclined surface. Figure 4 The battery assembly 10 is assembled into the battery compartment 23 of the main body 20 in the state of being inserted. During the insertion process, the inclined surface of the latch 150 is squeezed and drives the latch 150 to move downward and retract. When the latch 150 is aligned with the through hole 111, it can automatically rebound and protrude through the through hole 111 and engage with the latch hole 24 of the main body 20 to form a lock connection, preventing the battery assembly 10 from accidentally falling off. When the battery assembly 10 needs to be ejected, turn the operating part 151 downward to Figure 5 The horizontal position shown in FIG. 1 can drive the locking portion 152 to move downward and drive the latch 150 to retract into the through hole 111 of the upper shell 11, thereby releasing the locking connection between the latch 150 and the latch hole 24, and then drag the operating portion 151 outward to pull out the battery assembly 10. After the battery assembly 10 is withdrawn, the operating portion 151 can automatically return to its original position without external force. Figure 4In the state shown, the latch 150 returns to its natural state protruding from the battery assembly 10. It is understood that the battery assembly 10 may also Figure 5 Insert the main body 20 in the middle state, and after it is fully inserted, rotate the operating portion 151 upward to make the tongue 150 protrude from the upper shell 11 to engage with the hole 24 of the main body 20 to form a locking connection.

[0035] Reference below Figures 6 to 10 As shown, the structure and installation of the locking device 15 are specifically described.

[0036] refer to Figure 6 and Figure 10 As shown, the upper shell 11 is provided with an upper partition 112 vertically arranged along its width direction, and the lower shell 12 is provided with a lower partition 121 corresponding to the upper partition 112. After the lower shell 12 and the upper shell 11 are covered, the upper partition 112 and the lower partition 121 correspond to and abut against each other up and down, dividing the accommodating cavity 14 into a front cavity 141 and a rear cavity 142, wherein the battery core 13 is placed in the rear cavity 142, and the locking device 15 is placed in the front cavity 141 and assembled to the upper shell 11.

[0037] refer to Figure 7 and Figure 8 As shown, as previously described, the locking device 15 includes an operating portion 151 and a locking portion 152. The locking device 15 also includes a rotating shaft 153, a transmission pin 154, and a pair of levers 155 for achieving linkage between the operating portion 151 and the locking portion 152. The transmission pin 154 is used to transmit and connect the rotating shaft 153 and the operating portion 151, and the rotating shaft 153 is used to drive the lever 155, which is used to drive the locking portion 152 downward, as will be described in detail below.

[0038] refer to Figure 9 As shown, Figure 9 This is an exploded perspective view of the upper housing 11 and locking mechanism 15. The operating portion 151 is flat and U-shaped, consisting of two arms 1511 at each end and a crossbar 1512 connecting the two arms 1511. A rotating shaft 153 is horizontally positioned between the two arms 1511 of the operating portion 151, with its axis parallel to the width of the upper housing 11. The arms 1511 are provided with mating holes 1513 extending therethrough, and a number of retaining ribs 1514 are also provided on the inner wall of the arms 1511 located near the mating holes 1513. The end of the transmission pin 154 is inserted into the matching hole 1513, and the outer surface of the end of the transmission pin 154 is provided with a plurality of card grooves 1541 that match the clamping rib 1514, so that the transmission pin 154 is transmission-connected with the operating part 151; the end of the transmission pin 154 is also provided with a clamping strip 1542, and the end end face of the rotating shaft 153 is provided with a groove 1532 for accommodating the clamping strip 1542. The transmission pin 154 passes through the matching hole 1513 and is clamped into the groove 1532 of the rotating shaft 153, so that the rotating shaft 153 and the transmission pin 154 are transmission-connected.

[0039] The locking portion 152 is roughly T-shaped and comprises a horizontally disposed body 1521 and a protrusion 1522 extending upward from the center of the body 1521. The latch 150 serves as the top end of the protrusion 1522. A rotating shaft 153 is located at the front of the locking portion 152 and is provided with a pair of downwardly extending abutting portions 1531 located on its bottom side. The rotating shaft 153 rotates with the operating portion 151. Two levers 155 are located on the left and right sides of the locking portion 152 in a mirrored arrangement. Each lever 155 comprises a first end 1551 and a second end 1552, disposed in the left-right direction (i.e., the axial direction of the rotating shaft 153). A pivot axis 1553 is located between the first and second ends 1551 and 1552, serving as the pivot point for the lever 155. The pivot axis 1553 is perpendicular to the line connecting the first and second ends 1551 and 1552 of the lever 155. The first ends 1551 of the two levers 155 are respectively located above the left and right ends of the body 1521 of the locking portion 152, and the second ends 1552 of the two levers 155 are respectively located directly behind the corresponding pushing portion 1531. Figure 7 The upright state (natural state) in Figure 8 When the rotating shaft 153 is in the horizontal state (unlocked state), the rotating shaft 153 rotates accordingly, and its pushing portion 1531 flips back and upwards, pushing upward against the second ends 1552 of the two levers 155. As the second ends 1552 rotate upward, the first ends 1551 of the two levers 155 simultaneously rotate downward and press down on the corresponding portions on the left and right ends of the body 1521 of the locking portion 152, thereby driving the locking portion 152 downward. This retracts the latching tongue 150 from the upper shell 11 and releases the locking connection between it and the latching hole 24 of the main body 20. The contact point between the first end 1551 of the lever 155 and the body 1521 is a cylindrical surface, and the contact point between the second end 1552 and the pushing portion 1531 is also a cylindrical surface, and the sizes of the two cylindrical surfaces can be different.

[0040] The upper shell 11 is provided with two vertical side walls 113 on the left and right sides at its front end. Each side wall 113 is provided with a through-hole 1131. The rotating shaft 153 is arranged between the through-holes 1131 of the two side walls 113. The support arms 1511 of the operating portion 151 are provided on the outside of the side walls 113. The matching holes 1513 of the two support arms 1511 correspond to the through-holes 1131 of the two side walls 113 respectively. Then, the transmission pin 154 is inserted from the outside to the inside along the axial direction of the rotating shaft 153, through the matching hole 1513 of the operating portion 151 and the through-hole 1131 of the side walls 113, to the groove 1532 of the rotating shaft 153. The locking device 15 also includes a screw 156 that passes through the drive pin 154 and is fixed to the end of the rotating shaft 153, thereby reliably fixing the drive pin 154 to the rotating shaft 153. At the same time, the rotating shaft 153 is assembled into the upper shell 11 and the two arms 1511 of the operating portion 151 are pivotally connected to opposite sides of the upper shell 11. The operating portion 151 is located on the front and outer side of the battery assembly 10 and can drive the rotating shaft 153 to rotate synchronously.

[0041] The locking device 15 also includes a spring 157. The body 1521 of the locking portion 152 is provided with a downwardly protruding mounting post 1523 in the middle of its lower side. One end of the spring 157 is sleeved around the mounting post 1523, while the other end presses downward against a corresponding position on the lower housing 12. The spring 157 provides space for the locking portion 152 to move downward and elastic force for upward movement. The lower housing 12 has a corresponding receiving space (unnumbered) corresponding to the locking portion 152. Rotating the operating portion 151 to move the locking portion 152 downward compresses the spring 157. When the operating portion 151 is released, the spring 157 pushes the locking portion 152 upward to reset. The locking portion 152 then drives the operating portion 151 in the opposite direction via the lever 155 to reset it.

[0042] The locking mechanism 15 further includes a torsion spring 158 sleeved around one end of the rotating shaft 153. One end of the torsion spring 158 presses against a corresponding structure of the upper shell 11, while the other end of the torsion spring 158 presses against an adjacent push portion 1531. When the operating portion 151 rotates to unlock the battery assembly 10, the torsion spring 158 is compressed. After the operating portion 151 is released, the torsion spring 158 drives the rotating shaft 153 and, in turn, the operating portion 151 back to its original position. The torsion spring 158 restores the operating portion 151 from its horizontal position (unlocked position) to its natural position (upright position), preventing the operating portion 151 from loosening due to play and ensuring a smoother and more seamless return of the operating portion 151.

[0043] The following describes the relevant structure of the upper shell 11. The upper shell 11 forms a recessed chamber 1132 on the outer side of the side wall 113 to accommodate the support arm 1511. The upper shell 11 is also provided with a horizontal connecting wall 114 connecting the two side walls 113. The two side walls 113 and the connecting wall 114 form a U-shaped wall. The operating portion 151 in a vertical state is located on the outer side of the U-shaped wall. The horizontal arm 1512 of the operating portion 151 connecting the two support arms 1511 is located directly above the connecting wall 114. A lower recessed portion 1141 is formed in the middle of the connecting wall 114, and a notch 1142 is formed between the lower recessed portion 1141 and the operating portion 151. Figure 4 As shown, the notch 1142 can facilitate the operator to insert a finger to hook the operating portion 151 for operation.

[0044] The upper shell 11 is provided with four support ribs 115 extending downward from its top wall. Each support rib 115 is provided with a semicircular support groove 1151. The four support ribs 115 are divided into two groups, one on the left and one on the right. Each group includes two support ribs 115 arranged in a front-to-back direction along the length of the upper shell 11, and the support grooves 1151 of the front and rear support ribs 115 are aligned front to back. The pivot shaft 1553 of the lever 155 is supported at the support groove 1151. The first end 1551 and the second end 1552 of the lever 155 are limited between the two support ribs 115 in the same group to prevent forward and backward movement. Figure 10 As shown, the lower shell 12 is provided with four limiting ribs 122 . The limiting ribs 122 are respectively located directly below the pivot shaft 1553 to prevent the pivot shaft 1553 from being separated from the support groove 1151 .

[0045] The locking portion 152 is generally located within the area enclosed by the four support ribs 115 of the upper shell 11. A through hole 111 is located at the center of this area on the upper shell 11. The latch 150 at the top of the protrusion 1522 extends upward from the through hole 111. A notch 1524 is provided at each of the four corners of the body 1521. A guide post 1152 extending downward and interfitting with the notch 1524 is provided on the side of each support rib 115 near the body 1521. The guide post 1152 guides the locking portion 152 for stable upward and downward movement, preventing the locking portion 152 from tilting and causing unsmooth movement. During assembly, the lever 155 is assembled first, followed by the locking portion 152. The first end 1551 of the lever 155 is located directly above the body 1521 of the locking portion 152. The locking device 15 is provided with two levers 155 located on both sides of the locking portion 152 , which can simultaneously press down the locking portion 152 from both sides, making the movement of the locking portion 152 more stable and smooth.

[0046] The electric field generating device 100 and its battery assembly 10 of the present application are provided with a locking device 15 on the battery assembly 10. By operating the operating part 151 of the locking device 15, the tongue 150 can be retracted into the shell, thereby releasing the snap connection between the battery assembly 10 and the main body 20, so that the battery assembly 10 can be smoothly withdrawn.

[0047] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A battery assembly comprising a housing, a battery cell located within the housing, and a locking device, wherein the housing has a through hole, and the locking device has a latch protruding from the housing through the through hole, characterized in that: The locking device includes an operating part, a locking part, a rotating shaft and a lever. The operating part is located outside the battery assembly. The locking part is provided with the latch tongue. The rotating shaft is transmission-connected to the operating part and is provided with a pushing part. The lever is provided with a first end and a second end relative to each other. When the operating part is rotated under force, the rotating shaft is driven to rotate accordingly. The pushing part pushes the second end to drive the first end to rotate. The first end drives the locking part to move so that the latch tongue is retracted into the shell.

2. The battery assembly according to claim 1, wherein: The locking portion is provided with a main body and a protrusion extending upward from the main body, the latch is located at the top end of the protrusion, the main body is horizontally arranged, the first end of the lever is located directly above the main body, the pushing portion is located on the bottom side of the rotating shaft and pushes up the second end when the rotating shaft rotates so that the first end presses down the locking portion.

3. The battery assembly according to claim 2, wherein: The operating part includes a pair of support arms and a horizontal arm connecting the pair of support arms. The locking device is provided with a transmission pin and a screw corresponding to the support arms. One end of the transmission pin is transmission-connected to the support arm, and the other end is transmission-connected to the end of the rotating shaft. The screw passes through the transmission pin and is fixed to the rotating shaft.

4. The battery assembly according to claim 3, wherein: The housing is provided with two side walls arranged opposite to each other on the left and right sides, the side walls are provided with through holes, the rotating shaft is located between the two side walls, and the transmission pin passes through the support arm and the through holes and is fixed to the rotating shaft.

5. The battery assembly according to claim 4, wherein: The shell is provided with a connecting wall connecting the two side walls, the connecting wall is provided with a lower recess, the cross arm is located below the connecting wall and forms a notch together with the lower recess.

6. The battery assembly according to claim 1, wherein: The shell includes an upper shell and a lower shell. The upper shell is provided with two support ribs arranged front and back along the length direction of the lever corresponding to the lever. The support ribs are provided with support grooves. The lever is provided with a pivot shaft located between the first end and the second end. The pivot shaft is supported in the support groove. The lever is limited between the two support ribs.

7. The battery assembly according to claim 6, wherein: The lower shell is provided with a limiting rib located directly below the pivot axis.

8. The battery assembly according to claim 2, wherein: The main body is provided with a plurality of notches located at the edge thereof, and the shell is provided with a plurality of guide columns which match the notches to guide the movement of the locking portion.

9. The battery assembly according to claim 1, wherein: The locking device is provided with a spring located between the housing and the locking portion, and the locking portion is provided with an assembly column for the spring to be sleeved.

10. An electric field generating device, characterized in that: It comprises a main body and a battery assembly as described in any one of claims 1 to 9, wherein the main body is provided with a battery compartment for accommodating the battery assembly, and the inner wall of the battery compartment is provided with a card hole that engages with the tongue.

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