Battery pack structure

Abstract

The utility model 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 torsion 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 utility model relates to a battery pack field, especially a battery pack structure. BACKGROUND

[0002] The existing battery pack and host taking-out mode on the market is that the battery pack and the host are fixed through a lock catch button on the battery pack and the host, the host bottom is provided with a clamping groove, the lock catch button front end is provided with a clamping hook structure, the lock catch button bottom is provided with spring support, the clamping buckle and the host clamping groove keep the locked state under the spring elastic force to prevent the battery pack from falling off during use. When the battery pack is taken off from the host, the user needs to press the lock catch button and move a certain distance to make the lock catch separate from the clamping surface of the host, then pulls out the battery pack outward to separate the battery pack and the host, and the hand button resets under the spring elastic force. The common lock catch button on the market is generally arranged at the upper position or the side position of the battery pack, and the lock catch button is unlocked by pressing the lock catch button to move horizontally or vertically, and the battery pack is taken off. Because the reliability in the locked state needs to be maintained, the clamping surface of the lock catch button is usually large, and the spring elastic force needs to be large, so the pressing stroke required when the battery pack is taken off is large, and the pressing force to overcome the spring elastic force is also large. After pressing the spring, the battery pack is pulled out from the host, and the whole dismounting process is laborious and inconvenient.

[0003] In addition, the battery pack on the market does not have a TPYE-C interface, and charging needs to be matched with a special charger, and there is 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 scheme of the utility model is an improvement on the existing battery pack aiming at the above problems. UTILITY MODEL CONTENTS

[0005] In order to overcome the defects in the prior art, the utility model 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 utility model 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 catch, a lock catch shaft, a torsional spring and a push rod elastic piece, wherein:

[0008] The unlocking button is rotationally connected to the end of the battery pack body through the button shaft, and is used to push the push rod to move forward through the rotation of 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 impacted.

[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) by using greater force and a greater pressing stroke, and the innovative pressing structure and the push rod mechanism can save labor and be convenient when the battery pack is taken off, and greatly improve the user experience.

[0031] 2. The battery pack structure is unlocked by the transmission mode of the unlocking button + the push rod + the lock catch + the torsional spring + the 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 rotate 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 finally reduced, the overall use experience is better, and the disassembly is more labor-saving and convenient.

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

[0033] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor. In the drawings:

[0034] Figure 1 is a whole structure schematic diagram of a battery pack structure of the present application;

[0035] Figure 2 is an exploded schematic diagram of a whole structure of a battery pack structure of the present application;

[0036] Figure 3 is a sectional view of a battery pack structure of the present application;

[0037] Figure 4 is a silica gel cover structure schematic diagram in a battery pack structure of the present application;

[0038] Figure 5 is a charge-discharge connecting seat structure schematic diagram in a battery pack structure of the present application;

[0039] Figure 6 is a bottom cover structure schematic diagram in a battery pack structure of the present application;

[0040] Figure 7 is an unlocking button structure schematic diagram in a battery pack structure of the present application;

[0041] Figure 8 is a lock catch structure schematic diagram in a battery pack structure of the present application;

[0042] Figure 9 is a push rod structure schematic diagram in a battery pack structure of the present application;

[0043] Figure 10 is an upper cover structure schematic diagram in a battery pack structure of the present application;

[0044] Figure 11 is an upper cover and lock catch combined structure schematic diagram in a battery pack structure of the present application.

[0045]

Main symbol explanation

[0046] 1-unlocking button;

[0047] 2-button rotating shaft;

[0048] 3-battery pack body;

[0049] 4-push rod;

[0050] 5 - upper cover;

[0051] 6 - lock catch;

[0052] 7 - lock catch pivot;

[0053] 8 - torsion spring;

[0054] 9 - push rod elastic member;

[0055] 10 - push rod U-shaped slot;

[0056] 11 - main plate;

[0057] 12 - battery cell assembly;

[0058] 13 - charge and discharge connecting seat;

[0059] 14 - bottom cover;

[0060] 15 - charge and discharge interface;

[0061] 16 - silica gel cover;

[0062] 17 - upper cover U-shaped slot;

[0063] 18 - guide structure;

[0064] 19 - lock catch pivot installation slot;

[0065] 20 - guide slot. DETAILED DESCRIPTION

[0066] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0067] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0068] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the terms "mount", "link", "connect" should be understood broadly, for example, it can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be the communication inside two elements, the specific meaning of the above terms in the utility model can be understood according to specific circumstances for ordinary skilled person in the art.

[0069] As Figures 1-11 The utility model discloses a battery pack structure, including unlocking button 1, button pivot 2, battery pack body 3, push rod 4, upper cover 5, lock catch 6, lock catch pivot 7, torsion spring 8 and push rod elastic piece 9, wherein:

[0070] Unlocking button 1 is rotatably connected in the end of battery pack body 3 through button pivot 2, is used to push push rod 4 forward motion through the rotation of unlocking button 1;

[0071] The push rod 4 is built in the inside of the battery pack body 3, and the front end is supported and cooperated with the lock catch 6, and the rear end is abutted with the unlocking button 1, for pushing the lock catch 6 and rotating downward to the inside of the plane of the upper cover 5 to realize the unlocking action;

[0072] The lock catch 6 is rotatably connected in the middle of the upper cover 5 through the lock catch pivot 7, for locking the battery pack body 3 with external host;

[0073] The torsion spring 8 is sleeved on the lock catch pivot 7, for the reset of the positive and negative rotation of the lock catch 6.

[0074] The push rod elastic piece 9 is arranged at the bottom of the push rod 4, for assisting the reset of the push rod 4 and unlocking button 1.

[0075] As Figure 3 Further, the battery pack structure further includes a push rod U-shaped groove 10 and an upper cover U-shaped groove 17 arranged correspondingly, the push rod U-shaped groove 10 is fixed on the upper portion of the push rod 4, the upper cover U-shaped groove 17 is fixed on the lower portion of the upper cover 5, one end of the push rod elastic piece 9 is abutted with the push rod U-shaped groove 10, and the other end is abutted with the upper cover U-shaped groove 17. In actual production, the two ends of the push rod elastic piece 9 can also be fixedly connected with the push rod U-shaped groove 10 and the upper cover U-shaped groove 17.

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

[0077] When the number of torsion spring 8 is one, the torsion spring 8 is arranged on the left side or the right side of the lock catch 6;

[0078] When the number of torsion springs 8 is two, two torsion springs 8 are arranged at two ends of the lock catch rotating shaft 7 and on the left and right sides of the lock catch 6, respectively.

[0079] In combination with Figure 1 , 4 and 5, the battery pack structure further comprises a main plate 11, a cell assembly 12, a charging and discharging connecting seat 13, a bottom cover 14 and a charging and discharging interface 15. The charging and discharging connecting seat 13 is mounted on the main plate 11 and located at the end of the battery pack body 3; the main plate 11 is assembled with the cell assembly 12; the bottom cover 14 covers below the battery pack body 3; the charging and discharging interface 15 is provided on the side of the upper cover 5 and fixedly connected with the charging and discharging connecting seat 13. In this embodiment, the charging and discharging functions of the battery pack are realized through the charging and discharging connecting seat 13, without relying on a special charger. A general data line can be used to realize the charging function, and the discharging function can also be realized. The battery pack can be used as a mobile power supply to charge other devices when needed.

[0080] Further, the battery pack structure further comprises a silica gel cover 16, which covers the outside of the charging and discharging interface 15 and is used for sealing the charging and discharging interface 15. When used, the silica gel cover 16 can be opened to use the charging or discharging function.

[0081] Preferably, the charging and 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 and discharging interface 15 adopts a TYPE-C interface, but is not limited to this, and all interface forms on the market can be used.

[0082] In combination with Figure 1 , 3 and 4, the lock catch 6 and the upper cover 5 are arranged in a bevel matching manner. One end of the lock catch 6 close to the unlocking button 1 is gradually inclined to the end close to the lock catch rotating shaft 7, so as 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] Further, the angle between the inclined surface of the lock catch 6 and the upper surface of the upper cover 5 is between 15° and 75°. Preferably, the above angle is between 30° and 60°.

[0084] Further, the push rod 4 is provided with a guide structure 18 on both sides, which cooperates with the guide groove 20 inside the upper cover 5 to guide the push rod 4 to move left and right more smoothly after being inserted into the guide groove 20. In this embodiment, the upper cover is also provided with a lock catch rotating shaft mounting groove 19, which is in communication with the guide groove 20, so that when the lock catch rotating shaft 7 of the lock catch 6 is placed in the lock catch rotating shaft mounting groove 19, the guide structure 18 of the push rod 4 can resist the lock catch rotating shaft 7 when moving left and right along the guide groove 20, so that the push rod 4 cannot move up and down, and at the same time, the middle part of the push rod 4 resists the back of the lock catch 6, so that the lock catch 6 can no longer rotate towards the inside of the upper cover 5, achieving the state that the lock catch 6 is flush with the upper surface of the upper cover.

[0085] Preferably, the push rod elastic member 9 is a push rod spring, a push rod elastic tab or a push rod compression spring. In actual operation, components with compression function and self-rebound function can be applied here, without specific limitation.

[0086] Preferably, the unlocking button 1 and the button rotating shaft 2 are integrally formed; and / or, the lock catch 6 and the lock catch rotating shaft 7 are integrally formed. The integrally formed design helps to improve the service life of the unlocking button 1 and the lock catch 6.

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

[0088] Locked state: the lock catch 6 remains in a protruding state under the action of the torsion spring 8, in this state, the lock catch 6 is clamped with the clamping groove on the external host, realizing the locking function, and at the same time, the bottom of the lock catch 6 is pushed against the push rod 4 under the action of the torsion of the torsion spring 8, and the push rod 4 pushes against the unlocking button 1, so that the unlocking button 1 remains in a raised state.

[0089] Unlocking state: press the unlocking button 1, the unlocking button 1 rotates along the axis of the button shaft 2, the tail end of the unlocking button 1 and the tail end of the push rod 4 support cooperation, the unlocking button 1 drives the push rod 4 to move horizontally, the front end of the push rod 4 pushes the lock catch 6 to rotate clockwise along the axis of the lock catch shaft 7, the lock catch 6 is retracted, and the unlocking function is realized. The front end of the unlocking button 1 is supported by the three points of the pressing point, the supporting point and the rotation center to form a lever structure, the lever principle is used to reduce the pressing force, the rear end is rotated by the lock catch 6, the lock catch 6 is rotated to realize the function of reducing the pressing force and reducing the pressing stroke. Release your fingers, the lock catch 6, the push rod 4 and the unlocking button 1 are automatically reset under the action of the torsion spring 8 and the push rod elastic element 9. The unlocking button 1 rotates, the push rod 4 moves horizontally, and the lock catch 6 rotates. The unlocking button 1 rotates to reduce the pressing force by using the lever principle, and the lock catch 6 can rotate at a large angle to be tripped under the action of the small horizontal force of the push rod 4 by using the rotating structure, so that the pressing stroke of the unlocking button 1 is finally reduced, the overall use experience is better, and the disassembly is more labor-saving and convenient.

[0090] Working process or running process:

[0091] When the unlocking button 1 is pressed, the unlocking button 1 pushes the push rod 4 forward by rotating, the push rod 4 pushes the lock catch 6, and the lock catch 6 rotates downward to the inside of the plane of the upper cover 5, so that the unlocking action is realized. Release your fingers, the lock catch 6 is reset under the action of the torsion spring 8, and the push rod 4 is reset to the initial position, and the push rod elastic element 9 is used to assist the push rod to reset.

[0092] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A battery pack structure, characterized by, The battery pack body 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, wherein: The unlocking button is rotatably connected to the end of the battery pack body through the button rotating shaft, and is used to push the push rod forward by rotating the unlocking button; The push rod is built in the battery pack body, and its front end is supported by the lock catch and its rear end is in abutment with the unlocking button, so as to push the lock catch to rotate downward to the inside of the plane of the upper cover and thus realize the unlocking action; The lock catch is rotatably connected to the middle part of the upper cover through the lock catch rotating shaft, and is used to lock the battery pack body with the external host; The torsional spring is sleeved on the lock catch rotating shaft, and is used to reset the lock catch in the forward and reverse rotation; The push rod elastic piece is arranged at the bottom of the push rod, and is used to assist the reset of the push rod and the unlocking button.

2. The battery pack structure of claim 1, wherein The push rod U-shaped groove and the upper cover U-shaped groove are arranged in position correspondence, 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 piece is in abutment with the push rod U-shaped groove, and the other end is in abutment with the upper cover U-shaped groove.

3. The battery pack structure of claim 1, wherein The number of the torsional spring is one or two, wherein: 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; 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 on the left and right sides of the lock catch.

4. The battery pack structure of claim 1, wherein The main board, the electric core assembly, the charging and discharging connecting seat, the bottom cover and the charging and discharging interface are further included, wherein: The charging and discharging connecting seat is mounted on the main board and located at the end of the battery pack body; The main board and the electric core assembly are assembled together; The bottom cover covers the lower part of the battery pack body; The charging and discharging interface is arranged on the side of the upper cover and fixedly connected with the charging and discharging connecting seat.

5. The battery pack structure of claim 4, wherein The silica gel cover is further included, which covers the outside of the charging and discharging interface and is used to seal the charging and discharging interface.

6. The battery pack structure of claim 4, wherein The charging and discharging interface adopts a TYPE-C interface, a Mini USB interface, a Micro USB interface or a Lightning interface.

7. The battery pack structure of claim 1, wherein The lock catch and the upper cover are arranged in inclined surface cooperation, one end of the lock catch close to the unlocking button is gradually inclined to the end close to the lock catch rotating shaft, and is used to decompose the impact force when the whole machine is impacted.

8. The battery pack structure of claim 7, wherein, The angle between the inclined surface of the lock catch and the upper surface of the upper cover is between 15° and 75°.

9. The battery pack structure of claim 1, wherein, The left and right sides of the push rod are provided with guide structures which are guided by the guide grooves in the upper cover.

10. The battery pack structure of claim 1, wherein, The push rod elastic piece adopts a push rod spring, a push rod elastic tab or a push rod compression spring.

11. The battery pack structure of claim 1, wherein, 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.

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