Battery pack structure

Abstract

The invention discloses a battery pack structure which comprises an unlocking button, a button rotating shaft, a battery pack body, a push rod, an upper cover, a lock catch, a lock catch rotating shaft, a torsional spring and a push rod elastic piece, and the unlocking button is rotationally connected to the end of the battery pack body through the button rotating shaft and used for pushing the push rod to move forwards through rotation of the unlocking button; the push rod is arranged in the battery pack body, the front end of the push rod is in supporting fit with the lock catch, and the rear end of the push rod abuts against the unlocking button and is used for pushing the lock catch to rotate downwards into the plane of the upper cover so as to realize unlocking action; the lock catch is rotationally connected to the middle part of the upper cover through a lock catch rotating shaft and is used for locking the battery pack body and an external host; the torsional spring sleeves the lock catch rotating shaft and is used for resetting the forward and reverse rotation of the lock catch; the push rod elastic piece is arranged at the bottom of the push rod and used for assisting resetting of the push rod and the unlocking button.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery pack, in particular to a battery pack structure. BACKGROUND

[0002] The existing battery pack and host on the market are taken out in the following manner: the battery pack and the host are fixed by a lock button on the battery pack and the host, the host is provided with a clamping groove, the lock button is provided with a clamping hook structure at the front end, and the lock button is provided with a spring support at the bottom, so that the clamping hook and the clamping groove of the host are kept in a locked state under the action of the spring force to prevent the battery pack from falling off during use. When the battery pack is taken out from the host, the user needs to press the lock button and move it a certain distance to make the lock button disengage from the clamping surface of the host, and then pull the battery pack outward to separate the battery pack from the host, and release the hand button to reset under the action of the spring force. The commonly seen lock button on the market is generally arranged at the upper position or the side position of the battery pack, and is unlocked by pressing the lock button to move horizontally or vertically, and then the battery pack is taken out. Since the reliability in the locked state needs to be maintained, the clamping surface of the lock button is usually large, and the spring force needs to be large enough, so that the pressing stroke required when the battery pack is taken out is large, and the pressing force required to overcome the spring force is also large. After pressing the spring, the battery pack is pulled out from the host, and the whole disassembly process is laborious and inconvenient.

[0003] In addition, the battery pack on the market does not have a TPYE-C interface, and needs to be charged with a special charger, and has no discharging function. Some battery packs are separately provided with an adapter box to realize the charging and discharging function, which is inconvenient to operate, high in cost and inconvenient to carry.

[0004] The present application is an improvement on the existing battery pack to solve the above problems. SUMMARY

[0005] In order to overcome the deficiencies in the prior art, the present application provides a battery pack structure to solve the problems of complicated taking, inconvenient operation and inability to directly charge and discharge in the prior art.

[0006] In order to achieve the above application purposes and solve the technical problems, the technical scheme adopted is as follows:

[0007] A battery pack structure, comprising an unlocking button, a button shaft, a battery pack body, a push rod, an upper cover, a lock button, a lock button shaft, a torsional spring and a push rod elastic member, wherein:

[0008] The unlocking button is rotatably connected to the end of the battery pack body through the button shaft, and is used to push the push rod to move forward by rotating the unlocking button;

[0009] The push rod is arranged inside the battery pack body, the front end of the push rod is matched with the lock catch support, the rear end of the push rod is abutted with the unlocking button, and the push rod is used for pushing the lock catch to rotate downward to the inside of the plane of the upper cover to realize the unlocking action.

[0010] The lock catch is rotatably connected to the middle part of the upper cover through the lock catch rotating shaft, and is used for locking the battery pack body and the external host.

[0011] The torsional spring is sleeved on the lock catch rotating shaft, and is used for resetting the forward and reverse rotation of the lock catch.

[0012] The push rod elastic member is arranged at the bottom of the push rod, and is used for assisting the resetting of the push rod and the unlocking button.

[0013] Further, a push rod U-shaped groove and an upper cover U-shaped groove are arranged in positions corresponding to each other, the push rod U-shaped groove is fixed on the upper part of the push rod, the upper cover U-shaped groove is fixed on the lower part of the upper cover, one end of the push rod elastic member is abutted with the push rod U-shaped groove, and the other end of the push rod elastic member is abutted with the upper cover U-shaped groove.

[0014] Preferably, the number of the torsional spring is one or two, wherein:

[0015] When the number of the torsional spring is one, the torsional spring is arranged on the left side or the right side of the lock catch.

[0016] When the number of the torsional spring is two, the two torsional springs are arranged at the two ends of the lock catch rotating shaft and located on the left and right sides of the lock catch.

[0017] Further, a main board, a battery cell assembly, a charging and discharging connecting seat, a bottom cover and a charging and discharging interface are further included, wherein:

[0018] The charging and discharging connecting seat is mounted on the main board and located at the end of the battery pack body;

[0019] The main board and the battery cell assembly are assembled together;

[0020] The bottom cover covers the lower part of the battery pack body;

[0021] The charging and discharging interface is arranged on the side surface of the upper cover and fixedly connected with the charging and discharging connecting seat.

[0022] Further, a silica gel cover is further included, the silica gel cover covers the outside of the charging and discharging interface, and is used for sealing the charging and discharging interface.

[0023] Preferably, the charging and discharging interface adopts a TYPE-C interface, a Mini USB interface, a Micro USB interface or a Lightning interface.

[0024] Preferably, the lock catch and the upper cover are arranged in a bevel matching manner, and the lock catch gradually inclines from the end close to the unlocking button to the end close to the lock catch rotating shaft, so as to decompose the impact force when the whole machine is subjected to a larger impact.

[0025] Further, the angle between the inclined surface of the lock catch and the upper surface of the upper cover is between 15° and 75°.

[0026] Further, the left and right sides of the push rod are provided with guide structures which are matched with guide grooves in the upper cover.

[0027] Preferably, the push rod elastic member is a push rod spring, a push rod elastic tab or a push rod compression spring.

[0028] Preferably, the unlocking button and the button rotating shaft are integrally formed; and / or, the lock catch and the lock catch rotating shaft are integrally formed.

[0029] Compared with the prior art, the battery pack structure has the following advantages and positive effects:

[0030] 1. The battery pack structure can be taken off from the main machine (such as an electric drill, an electric wrench, a leaf blower or a car washer) with less force and stroke, and the user experience is greatly improved.

[0031] 2. The battery pack structure is unlocked by the transmission mode of the unlocking button + push rod + lock catch + torsional spring + push rod spring, wherein the lever principle of the double rotary motion of the unlocking button and the lock catch is used to realize the function of reducing the pressing force and the pressing stroke. The unlocking button is in rotary motion, the push rod is in horizontal motion, the lock catch button is in rotary motion, the rotary motion of the unlocking button uses the lever principle to reduce the pressing force, and the lock catch can be rotated at a large angle to be tripped under the condition that the horizontal force of the push rod is small, so that the pressing stroke of the unlocking button is reduced, and the overall use experience is better, and the disassembly is more labor-saving and convenient.

[0032] 3. The battery pack structure increases the charging and discharging connector, the charging and discharging interface is arranged on the side surface of the battery pack, the charging and discharging interface is sealed by a silica gel cover, is not dependent on a special charging seat, has better universality, and the discharging function can be used as a mobile power supply, and the function is more abundant. BRIEF DESCRIPTION OF DRAWINGS

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0034] Figure 1 This is a schematic diagram of the overall structure of a battery pack according to the present invention;

[0035] Figure 2 This is an exploded view of the overall structure of a battery pack according to the present invention;

[0036] Figure 3 This is a cross-sectional view of a battery pack structure according to the present invention;

[0037] Figure 4 This is a schematic diagram of the silicone cover structure in a battery pack structure according to the present invention;

[0038] Figure 5 This is a schematic diagram of the charging and discharging connection seat structure in a battery pack structure according to the present invention;

[0039] Figure 6 This is a schematic diagram of the bottom cover structure in a battery pack structure according to the present invention;

[0040] Figure 7 This is a schematic diagram of the unlock button structure in a battery pack structure according to the present invention;

[0041] Figure 8 This is a schematic diagram of the locking structure in a battery pack structure according to the present invention;

[0042] Figure 9 This is a schematic diagram of the push rod structure in a battery pack structure according to the present invention;

[0043] Figure 10 This is a schematic diagram of the upper cover structure in a battery pack structure according to the present invention;

[0044] Figure 11 This is a schematic diagram of the combination structure of the top cover and the latch in a battery pack structure according to the present invention.

[0045] [Explanation of Key Symbols]

[0046] 1-Unlock button;

[0047] 2-Button hinge;

[0048] 3-Battery pack body;

[0049] 4-Pusher;

[0050] 5-Top cover;

[0051] 6-Lock;

[0052] 7-Lock pivot;

[0053] 8-Torsion spring;

[0054] 9-Push rod elastic element;

[0055] 10-Push rod U-groove;

[0056] 11-Motherboard;

[0057] 12-Battery cell assembly;

[0058] 13-Charging / discharging connector;

[0059] 14-Bottom cover;

[0060] 15 - Charging / discharging interface;

[0061] 16-Silicone cap;

[0062] 17-U-shaped groove on the top cover;

[0063] 18-Guide structure;

[0064] 19-Lock pivot mounting slot;

[0065] 20-Guide groove. Detailed Implementation

[0066] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0067] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0068] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0069] like Figures 1-11 As shown, this embodiment discloses a battery pack structure, including an unlock button 1, a button pivot 2, a battery pack body 3, a push rod 4, a top cover 5, a latch 6, a latch pivot 7, a torsion spring 8, and a push rod elastic element 9, wherein:

[0070] The unlock button 1 is rotatably connected to the end of the battery pack body 3 via the button pivot 2, and is used to push the push rod 4 forward by rotating the unlock button 1;

[0071] The push rod 4 is built into the battery pack body 3. Its front end supports and cooperates with the latch 6, and its rear end abuts against the unlock button 1. It is used to push the latch 6 and rotate it downward into the plane of the upper cover 5 to achieve the unlocking action.

[0072] The latch 6 is rotatably connected to the middle of the upper cover 5 via the latch pivot 7, and is used to lock the battery pack body 3 to the external host.

[0073] The torsion spring 8 is sleeved on the locking shaft 7 and is used to reset the locking buckle 6 when it rotates forward or backward.

[0074] The push rod elastic element 9 is disposed at the bottom of the push rod 4 and is used to assist in the reset of the push rod 4 and the unlock button 1.

[0075] like Figure 3 As shown, the battery pack structure further includes a push rod U-shaped groove 10 and a top cover U-shaped groove 17, which are correspondingly positioned. The push rod U-shaped groove 10 is fixed to the upper part of the push rod 4, and the top cover U-shaped groove 17 is fixed to the lower part of the top cover 5. One end of the push rod elastic member 9 abuts against the push rod U-shaped groove 10, and the other end abuts against the top cover U-shaped groove 17. In actual production, both ends of the push rod elastic member 9 can also be fixedly connected to the push rod U-shaped groove 10 and the top cover U-shaped groove 17.

[0076] Preferably, the number of torsion springs 8 is one or two, wherein:

[0077] When there is only one torsion spring 8, the torsion spring 8 is located on the left or right side of the latch 6;

[0078] When there are two torsion springs 8, the two torsion springs 8 are respectively disposed at both ends of the locking shaft 7 and located on the left and right sides of the locking buckle 6.

[0079] Combination Figure 1 , 4 In addition to the above 5, the battery pack structure also includes a motherboard 11, a cell assembly 12, a charging / discharging connector 13, a bottom cover 14, and a charging / discharging interface 15. The charging / discharging connector 13 is mounted on the motherboard 11 and located at the end of the battery pack body 3; the motherboard 11 is assembled with the cell assembly 12; the bottom cover 14 covers the bottom of the battery pack body 3; the charging / discharging interface 15 is located on the side of the top cover 5 and is fixedly connected to the charging / discharging connector 13. In this embodiment, the charging and discharging functions of the battery pack are realized through the charging / discharging connector 13, eliminating the need for a dedicated charger. A universal data cable can be used for both charging and discharging, allowing it to charge other devices when needed and function as a power bank.

[0080] Furthermore, the battery pack structure also includes a silicone cover 16, which covers the outside of the charging / discharging interface 15 to seal it. In use, opening the silicone cover 16 allows the charging or discharging function to be used.

[0081] Preferably, the charging / discharging interface 15 adopts a TYPE-C interface, a Mini USB interface, a Micro USB interface, or a Lightning interface. In this embodiment, the charging / discharging interface 15 adopts a TYPE-C interface, but it is not specifically limited, and all interface forms on the market are acceptable.

[0082] Combination Figure 1 , 3 In addition to 4, the latch 6 and the top cover 5 are set at an angle. The end of the latch 6 near the unlock button 1 gradually tilts towards the end near the latch pivot 7. This is used to decompose the impact force when the whole machine is subjected to a large impact, effectively increasing the service life of the battery pack.

[0083] Furthermore, the angle between the inclined surface of the latch 6 and the upper surface of the cover 5 is between 15° and 75°. Preferably, the angle is between 30° and 60°.

[0084] Furthermore, guide structures 18 are provided on the left and right sides of the push rod 4. The guide structures 18 and the guide groove 20 inside the upper cover 5 cooperate with each other to guide the push rod 4, so that it can move more smoothly left and right after being inserted into the guide groove 20. In this embodiment, a latch shaft mounting groove 19 is also provided on the upper cover. The latch shaft mounting groove 19 is connected to the guide groove 20, so that after the latch shaft 7 of the latch 6 is placed in the latch shaft mounting groove 19, the guide structure 18 of the push rod 4 can abut against the latch shaft 7 when it moves left and right along the guide groove 20, preventing it from moving up and down. At the same time, the middle part of the push rod 4 abuts against the back of the latch 6, so that the latch 6 no longer rotates into the upper cover 5, achieving a state where the latch 6 is flush with the upper surface of the upper cover.

[0085] Preferably, the push rod elastic element 9 is a push rod spring, a push rod elastic tab, or a push rod compression spring. In actual operation, any component with compression function and self-rebound capability can be used here, without specific limitations.

[0086] Preferably, the unlock button 1 and the button pivot 2 are integrally formed; and / or, the latch 6 and the latch pivot 7 are integrally formed. This integrally formed design helps to improve the service life of the unlock button 1 and the latch 6.

[0087] In this embodiment, the battery pack structure is divided into a locked state and an unlocked state:

[0088] Locked state: The latch 6 remains in a raised state under the action of the torsion spring 8. In this state, the latch 6 engages with the slot on the external host to achieve the locking function. At the same time, under the torque of the torsion spring 8, the bottom of the latch 6 pushes the push rod 4 in the opposite direction. The push rod 4 presses against the unlock button 1, keeping the unlock button 1 in a raised state.

[0089] Unlocked State: Pressing the unlock button 1 causes it to rotate along the axis of the button pivot 2. The tail end of the unlock button 1 supports and engages with the tail end of the push rod 4. The unlock button 1 drives the push rod 4 to move horizontally, causing the front end of the push rod 4 to push the latch 6 to rotate clockwise along the axis of the latch pivot 7. The latch 6 retracts, unlocking the device. The front part of the unlock button 1 forms a lever structure through the pressing point, support point, and rotation center. Utilizing the lever principle, the pressing force is reduced. The rear part utilizes the rotation of the latch 6 to achieve a larger stroke of the latch 6 through a smaller horizontal movement of the push rod 4, thus reducing the pressing force and stroke. Releasing the finger causes the latch 6, push rod 4, and unlock button 1 to automatically reset under the action of the torsion spring 8 and the elastic element 9 of the push rod. Unlock button 1 rotates, push rod 4 moves horizontally, and lock 6 rotates. The rotation of unlock button 1 utilizes the lever principle to reduce the pressing force. Lock 6 utilizes a rotating structure to allow for large-angle rotation and disengagement even with minimal horizontal force from push rod 4. Ultimately, this reduces the pressing stroke of unlock button 1, resulting in a better overall user experience and easier and more convenient disassembly.

[0090] Working process or operation process:

[0091] When the unlock button 1 is pressed, it rotates and pushes the push rod 4 forward. The push rod 4 pushes the latch 6, which rotates downward into the plane of the upper cover 5, thus unlocking the device. When the finger is released, the latch 6 returns to its original position under the force of the torsion spring 8, simultaneously driving the push rod 4 back to its starting position. The elastic element 9 of the push rod assists in its reset.

[0092] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A battery pack structure, characterized in that, Includes an unlock button, button hinge, battery pack body, push rod, top cover, latch, latch hinge, torsion spring, and push rod elastic element, among which: The unlock button is rotatably connected to the end of the battery pack body via the button pivot, and is used to push the push rod forward by rotating the unlock button; The push rod is built into the battery pack body. Its front end cooperates with the latch support and its rear end abuts against the unlock button. It is used to push the latch and rotate it downward into the plane of the top cover to achieve the unlocking action. The latch is rotatably connected to the middle of the upper cover via the latch pivot, and is used to lock the battery pack body to the external host. The torsion spring is sleeved on the latch shaft and is used to reset the latch when it rotates forward or backward; The push rod elastic element is located at the bottom of the push rod and is used to assist in the reset of the push rod and the unlock button.

2. The battery pack structure according to claim 1, characterized in that, It also includes a push rod U-shaped groove and a top cover U-shaped groove that are positioned accordingly. The push rod U-shaped groove is fixed to the upper part of the push rod, and the top cover U-shaped groove is fixed to the lower part of the top cover. One end of the push rod elastic element abuts against the push rod U-shaped groove, and the other end abuts against the top cover U-shaped groove.

3. The battery pack structure according to claim 1, characterized in that, The number of torsion springs is one or two, wherein: When there is only one torsion spring, the torsion spring is located on the left or right side of the latch; When there are two torsion springs, the two torsion springs are respectively located at both ends of the latch shaft and on the left and right sides of the latch.

4. The battery pack structure according to claim 1, characterized in that, It also includes the motherboard, battery cell assembly, charging / discharging connector, bottom cover, and charging / discharging interface, among which: The charging / discharging connector is mounted on the motherboard and located at the end of the battery pack body; The motherboard is assembled with the battery cell assembly; The bottom cover fits under the battery pack body; The charging / discharging interface is located on the side of the upper cover and is fixedly connected to the charging / discharging connector.

5. A battery pack structure according to claim 4, characterized in that, It also includes a silicone cap, which is placed over the outside of the charging / discharging interface to seal the charging / discharging interface.

6. A battery pack structure according to claim 4, characterized in that, The charging / discharging interface adopts a TYPE-C interface, a Mini USB interface, a Micro USB interface, or a Lightning interface.

7. A battery pack structure according to claim 1, characterized in that, The latch and the top cover are designed with an inclined surface. The end of the latch near the unlock button gradually tilts towards the end near the latch pivot, so that the latch can decompose the impact force when the whole machine is subjected to a large impact.

8. A battery pack structure according to claim 7, characterized in that, The angle between the inclined surface of the latch and the upper surface of the cover is between 15° and 75°.

9. A battery pack structure according to claim 1, characterized in that, The push rod is provided with guide structures on both the left and right sides, and the guide structures and the guide groove inside the upper cover cooperate with each other for guidance.

10. A battery pack structure according to claim 1, characterized in that, The push rod elastic element is a push rod spring, a push rod elastic tab, or a push rod compression spring.

11. A battery pack structure according to claim 1, characterized in that, The unlock button and the button pivot are integrally formed; and / or, the latch and the latch pivot are integrally formed.

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