Battery pack shell structure and battery pack

Abstract

The utility model provides a kind of battery package shell structure and battery package, it is related to power battery structure technical field, and battery package shell structure includes: first shell, second shell and key body.The key body in the utility model is set in key hole, under normality, the pre-tightening force provided by reset piece inside battery package makes the bottom end of key body be located in the groove bottom of guide groove, and sliding member on the side wall of key body and sliding limit part keep plug-in cooperation state.When battery package needs to be disassembled, vertical downward pressing force is applied to the pressing surface of key body, key body is driven to move along guide groove, sliding member carries out linear motion along sliding limit part, and sliding limit part restricts that key body can only carry out linear movement along guide groove, sliding limit part, prevent the possible inclination, jamming due to uneven stress, avoid the interference of key and surrounding shell, ensure that the unlocking action of battery package can be successfully completed.

Description

Technical Field

[0001] This utility model relates to the field of power battery structure technology, and more specifically, to a battery pack housing structure and a battery pack. Background Technology

[0002] With the acceleration of global energy transition and the electrification of the automotive industry, the performance and reliability of the power battery pack, as the core energy source of new energy vehicles, directly determine the vehicle's range, power performance, and user experience. To meet diverse energy replenishment needs, especially in application scenarios such as light electric vehicles, shared vehicles, and battery swapping, quick-removable power battery packs have become an important technological development direction. This design allows users to easily remove the battery for charging, replacement, or maintenance, effectively alleviating the pain point of insufficient charging infrastructure and improving the flexibility of vehicle use.

[0003] One of the core technologies of removable battery packs lies in their safe, reliable, and easy-to-operate locking and unlocking mechanism with the vehicle body. Currently, the industry generally adopts a mechanical locking structure, in which the unlocking button is the interface through which the user directly interacts with the locking system, and its performance is crucial. An ideal unlocking device should have moderate operating force, smooth travel, clear feedback, and a reliable structure to ensure that users have an efficient, effortless, and frustration-free experience when removing the battery pack.

[0004] However, in practical applications, the existing power battery pack unlocking button structure is prone to tilting when the button is subjected to force, making it difficult to maintain vertical movement. This results in uneven resistance when pressed, and the button is prone to interference with the surrounding housing, causing jamming and preventing the battery pack from unlocking. Utility Model Content

[0005] The purpose of this utility model is to provide a battery pack housing structure to alleviate the technical problems in the prior art where buttons are difficult to maintain vertical movement when subjected to force, are prone to tilting, resulting in uneven resistance when pressed, and the buttons are prone to interference with the surrounding housing, causing jamming and making the battery pack unable to unlock.

[0006] This utility model provides a battery pack housing structure, including: a first outer shell and a button body.

[0007] The surface of the first outer shell is provided with a through button hole, and one side of the first outer shell is provided with a guide groove arranged circumferentially along the button hole, and a sliding limiting part is provided on the guide groove.

[0008] The button body is disposed in the button hole, and the side wall of the button body is slidably engaged with the button hole and the guide groove. The button body is provided with a sliding member adapted to the sliding limiting part.

[0009] The slider is inserted into the sliding limiting part and can move along the extending direction of the sliding limiting part.

[0010] Furthermore, the sliding limiting part is a limiting hole.

[0011] The limiting holes are two in number and are disposed opposite to each other on the two opposite walls of the guide groove along the length direction of the button hole.

[0012] The sliding component is a sliding rib. The sliding rib is arranged along the circumference of the button body and forms sliding mating parts on both sides of the button body. The two sliding mating parts are inserted into the two limiting holes one to one. The side wall of the sliding mating part abuts against the groove wall of the limiting hole and slides.

[0013] Furthermore, a limiting rib is provided on the side of the limiting hole away from the button hole.

[0014] The end of the limiting rib faces the limiting hole and is used to abut against the sliding rib.

[0015] Furthermore, the battery pack housing structure also includes a first limiting part.

[0016] The first limiting part is disposed in the guide groove and located on one side of the sliding limiting part. The first limiting part is disposed between the guide groove and the button body, and the first limiting part abuts against and slides with the side wall of the button body.

[0017] Furthermore, the first limiting part is a limiting protrusion.

[0018] There are two limiting protrusions, which are respectively provided on the opposite side walls of the guide groove. The ends of the two limiting protrusions abut against and slide against the opposite side walls of the button body.

[0019] Furthermore, the battery pack housing structure also includes a second limiting part.

[0020] The second limiting part is disposed in the guide groove and located on the side of the sliding limiting part away from the first limiting part. The second limiting part is disposed between the guide groove and the button body, and the second limiting part abuts against and slides with the side wall of the button body.

[0021] Furthermore, the second limiting part is a limiting protrusion.

[0022] There are two limiting protrusions, which are respectively disposed on the opposite side walls of the guide groove. The ends of the two limiting protrusions abut against and slide against the opposite side walls of the button body.

[0023] Furthermore, a mounting portion is provided on the side of the button body facing the guide groove.

[0024] The mounting section is used to install the elastic element.

[0025] Furthermore, the opposite side walls of the button body have a stepped structure.

[0026] The outline of the button hole is adapted to the button body.

[0027] The purpose of this utility model is also to provide a battery pack, including the provided battery pack housing structure.

[0028] Beneficial effects: Specifically, in this invention, the button body is disposed in the button hole. Under normal conditions, the pre-tightening force provided by the reset component inside the battery pack keeps the bottom of the button body at the bottom of the guide groove, and the sliding component on the side wall of the button body maintains an insertion engagement with the sliding limit part. When the battery pack needs to be disassembled, a vertically downward pressing force is applied to the pressing surface of the button body, driving the button body to move along the guide groove, and the sliding component to move linearly along the sliding limit part. The sliding limit part restricts the button body to only move linearly along the guide groove and the sliding limit part, effectively preventing tilting or jamming that may be caused by uneven force. Furthermore, throughout the entire pressing stroke, due to the tight insertion engagement between the sliding component and the sliding limit part, the button body is firmly restricted in all non-operating directions without any shaking, avoiding interference between the button and the surrounding housing, and ensuring that the unlocking action of the battery pack can be completed smoothly. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the battery pack housing structure provided in an embodiment of the present utility model; Figure 2 A schematic diagram of the top surface structure of the first housing in the battery pack housing structure provided in this embodiment of the utility model; Figure 3 A schematic diagram illustrating the cooperation relationship between the first housing and the button body in the battery pack housing structure provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the button body in the battery pack housing structure provided in this embodiment of the utility model; Figure 5A schematic diagram of the bottom surface structure of the first shell in the battery pack shell structure provided in this embodiment of the utility model; Figure 6 A schematic diagram illustrating the cooperation relationship between the first housing and the reset spring in a battery pack provided in an embodiment of this utility model; Figure 7 This is a schematic diagram showing the position of the guide groove in the battery pack according to an embodiment of the present invention; Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0031] Figure label: 100-First outer shell; 110-Guide groove; 120-Limiting hole; 130-Limiting rib; 140-First limiting part; 150-Second limiting part; 200-Second outer shell; 300-Button body; 310-Sliding part; 320-Mounting part; 400-Reset spring. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this utility model, 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, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and 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 this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 utility model based on the specific circumstances.

[0038] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0039] Please see Figures 1 to 8 The battery pack housing structure provided in this embodiment includes a first outer shell 100 and a button body 300.

[0040] The first outer shell 100 has a through button hole on its surface, and a guide groove 110 is provided on one side of the first outer shell 100 along the circumference of the button hole. A sliding limit part is provided on the guide groove 110.

[0041] In this embodiment, the battery pack housing structure further includes a second outer shell 200, which is detachably connected to the first outer shell 100. A storage space for setting electrical components and the battery body is formed between the first outer shell 100 and the second outer shell 200.

[0042] Combination Figure 7 , Figure 7In the middle, the shaded area is the guide groove 110. The button body 300 is located in the button hole, and the side wall of the button body 300 slides in conjunction with the button hole and the guide groove 110. The button body 300 is provided with a slider 310 that is adapted to the sliding limit part.

[0043] Furthermore, the slider 310 is inserted into the sliding limit part and can move along the extending direction of the sliding limit part.

[0044] Specifically, in this embodiment, the button body 300 is disposed in the button hole.

[0045] When the battery pack is in normal use, the pre-tightening force provided by the reset component inside the battery pack keeps the bottom of the button body 300 at the bottom of the guide groove 110. The sliding component 310 on the side wall of the button body 300 and the sliding limit part are in a plug-in engagement state to achieve the constraint of the button body 300 in the horizontal direction and ensure that the button body 300 does not move or tilt.

[0046] When the battery pack needs to be removed, a vertically downward pressing force is applied to the pressing surface of the button body 300, driving the button body 300 to move along the guide groove 110 (i.e., moving from the first housing to the second housing in the holding space). The slider 310 moves linearly along the sliding limit part. The sliding limit part restricts the button body 300 to only move linearly along the guide groove 110 and the sliding limit part, effectively preventing tilting and jamming that may be caused by uneven force.

[0047] Furthermore, throughout the entire pressing stroke, due to the tight engagement between the slider 310 and the sliding limit part, the button body 300 is firmly restricted in all non-operational directions without any shaking, thus preventing interference between the button and the surrounding housing and ensuring that the battery pack unlocking action can be completed smoothly.

[0048] When the user releases the button body 300, the button body 300 loses the pressing force. At this time, the reset spring 400 undergoes restorative deformation to drive the button body 300 to slide vertically upward along the sliding limit part. The slider 310 moves along the sliding limit part to reset until it returns to the initial position. The entire reset process is equally smooth and precise.

[0049] In this embodiment, the sliding limiting part is a limiting hole 120. There are two limiting holes 120, which are disposed opposite to each other on the two groove walls of the guide groove 110 along the length direction of the button hole. The sliding member 310 is a sliding rib, which is disposed along the circumference of the button body 300 and forms sliding mating parts on both sides of the button body 300. The two sliding mating parts are inserted into the two limiting holes 120 one by one, and the side wall of the sliding mating part abuts against the groove wall of the limiting hole 120 and slides.

[0050] In this embodiment, the sliding limiting part is specifically two limiting holes 120 arranged opposite to each other along the guide groove 110, and the sliding ribs on both sides of the button body 300 have a certain thickness, and the sliding ribs and the limiting holes 120 form a tight insertion fit.

[0051] This structure increases the lateral contact area of ​​the sliding engagement part. When the button is subjected to a non-perpendicular lateral force, the sliding engagement part and the guide groove 110 can provide strong anti-torque capability, thereby further suppressing the deflection, wobbling, or jamming that may occur during the sliding process, ensuring the linearity and smoothness of the pressing action. In addition, the symmetrical limiting structure formed by the two guide grooves 110 and the sliding engagement part not only disperses lateral stress and reduces local wear to extend service life, but also improves the consistency of button operation feel and the reliability of the overall structure.

[0052] In this embodiment, a limiting rib 130 is provided on the side of the limiting hole 120 away from the button hole. The end of the limiting rib 130 faces the limiting hole 120 and is used to abut against the sliding rib.

[0053] The limiting rib 130 achieves end-point hard limiting of the sliding rib's movement stroke. With this structure, the limiting rib 130 can effectively prevent the sliding rib from coming out of the limiting hole 120 or overshooting during the pressing or rebounding of the button. This not only further improves the stability and reliability of the button's movement and avoids the risk of damage or jamming of internal components due to excessive displacement, but also provides clear tactile feedback for operation through a clear physical stop, enhancing the product's durability and safety of use.

[0054] In this embodiment, the battery pack housing structure further includes a first limiting part 140. The first limiting part 140 is disposed on the inner wall of the guide groove 110 and located on one side of the limiting hole 120. The first limiting part 140 is disposed between the guide groove 110 and the button body 300, and the first limiting part 140 abuts against and slides with the side wall of the button body 300.

[0055] The first limiting part 140 forms an additional lateral constraint between the guide groove 110 and the button body 300. The first limiting part 140 can suppress radial wobble or slight rotation that may occur during button pressing, and works in conjunction with the sliding limiting part to further ensure the linearity and accuracy of the button's movement trajectory, improve the consistency of the operating feel and structural stability, and at the same time reduce the risk of local wear by dispersing lateral forces, thus extending the button's service life.

[0056] Specifically, in this embodiment, the first limiting part 140 is a limiting protrusion. There are two limiting protrusions, which are respectively provided on the opposite side walls of the guide groove 110. The ends of the two limiting protrusions abut against and slide against the opposite side walls of the button body 300.

[0057] Two limiting protrusions provide simultaneous and balanced constraint on both sides of the button body 300. The symmetrical layout of the two limiting protrusions provides bidirectional balanced limiting force, thereby eliminating wobble gaps in either radial direction and ensuring a more accurate and stable button movement trajectory. The sliding cooperation between the two limiting protrusions and the button body 300 further enhances the structural rigidity and strengthens the resistance to off-center loads, enabling the button to maintain excellent tactile consistency and long-term reliability even under repeated operation.

[0058] In this embodiment, the battery pack housing structure further includes a second limiting part 150. The second limiting part 150 is provided on the inner wall of the guide groove 110 and is located on the side of the limiting hole 120 away from the first limiting part 140. The second limiting part 150 is disposed between the guide groove 110 and the button body 300, and the second limiting part 150 abuts against and slides with the side wall of the button body 300.

[0059] The second limiting part 150, located on the side of the mounting part 320 away from the first limiting part 140, together with the first limiting part 140, forms a bilateral symmetrical constraint on the button body 300. In this structure, the sliding guide surface of the button body 300 is further extended, forming a more stable support structure with a larger span. This more effectively resists the eccentric torque generated during pressing, improving the linearity and smoothness of the button's movement. The synergistic effect of the bilateral limiting by the first limiting part 140 and the second limiting part 150 further eliminates the possibility of button wobbling in any radial direction.

[0060] Specifically, in this embodiment, the second limiting part 150 is a limiting protrusion. There are two limiting protrusions, which are respectively provided on the opposite side walls of the guide groove 110. The ends of the two limiting protrusions abut against and slide against the opposite side walls of the button body 300.

[0061] In this embodiment, the two limiting protrusions and the two limiting protrusions together form a four-point limiting structure that is completely symmetrical in front and back and left and right of the button body 300, so that the button body 300 can obtain a balanced constraint in the full circumference and multiple points within the guide groove 110, thereby improving the guiding accuracy and stability of the button movement and effectively suppressing any shaking and deflection.

[0062] The four-point support structure significantly enhances the overall rigidity of the button module, ensuring that even under long-term, frequent pressing operations, the button body 300 can still maintain extremely high operational reliability and consistent feel.

[0063] In this embodiment, a mounting portion 320 is provided on the side of the button body 300 facing the holding space. The mounting portion 320 is used to mount the elastic element.

[0064] In this embodiment, the mounting part 320 is located on the side of the button body 300 facing the holding space, thereby providing a stable and reliable mounting point for the elastic element (such as the return spring 400). This structure ensures that the elastic element maintains the correct compression path and force direction during button pressing and rebound, preventing displacement, twisting, or detachment of the elastic element during long-term use. This guarantees the smoothness, consistency, and durability of the button's rebound action, while simplifying the assembly process and improving the product's reliability and service life.

[0065] In this embodiment, the opposite side walls of the button body 300 have a stepped structure. The outline of the button hole is adapted to the button body 300.

[0066] In this embodiment, both sides of the button body 300 are provided with a stepped structure, and the width of the button body 300 gradually decreases from one end to the other end. The outline of the button hole is precisely adapted to it, forming a physical guiding and limiting mechanism for preventing misinstallation of the button body 300.

[0067] With this structure, the button body 300 can only be inserted into the button hole in one correct direction and posture, preventing reverse or misaligned installation during the production and assembly process, thus improving assembly efficiency and accuracy. The stepped structure also increases the contact area between the button and the housing, further enhancing the constraint of the button in the non-pressing direction, reducing minor wobble, and improving the overall structural stability and appearance consistency.

[0068] The battery pack provided in this embodiment includes a battery pack housing structure.

[0069] The battery pack provided in this embodiment has all the technical advantages of the provided battery pack housing structure, such as precise guidance of button operation, smooth feel, high reliability and anti-misinstallation characteristics, which will not be elaborated here.

[0070] Specifically, the battery pack provided in this embodiment also includes a reset spring 400, which is disposed on the mounting portion 320. In this embodiment, the mounting portion 320 is a convex structure and there are two of them. The two mounting portions 320 are spaced apart on the button body 300, and the two reset springs 400 are fitted one-to-one on the convex mounting portions 320. The two convex mounting portions 320 provide a stable and symmetrical positioning base for the spring, effectively preventing the spring from shifting, twisting or dislodging during compression and rebound, and ensuring that the direction of the reset force of the button body 300 is consistent and the action is smooth, thereby significantly improving the overall reliability, durability and user experience of the battery pack.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery pack housing structure, characterized in that, include: The first outer shell (100) has a key hole through it on its surface. A guide groove (110) is provided on one side of the first outer shell (100) along the circumference of the key hole. A sliding limiting part is provided on the guide groove (110). A button body (300) is disposed in the button hole. The side wall of the button body (300) is slidably engaged with the button hole and the guide groove (110). The button body (300) is provided with a sliding member (310) adapted to the sliding limiting part. The slider (310) is inserted into the sliding limiting part and can move along the extending direction of the sliding limiting part.

2. The battery pack housing structure according to claim 1, characterized in that, The sliding limiting part is a limiting hole (120); There are two limiting holes (120) and they are arranged opposite to each other on the two groove walls of the guide groove (110) along the length direction of the button hole; The sliding member (310) is a sliding rib. The sliding rib is arranged along the circumference of the button body (300) and forms sliding mating parts on both sides of the button body (300). The two sliding mating parts are inserted into the two limiting holes (120) one by one. The side wall of the sliding mating part abuts against the groove wall of the limiting hole (120) and slides.

3. The battery pack housing structure according to claim 2, characterized in that, A limiting rib (130) is provided on the side of the limiting hole (120) away from the button hole; The end of the limiting rib (130) faces the limiting hole (120) and is used to abut against the sliding rib.

4. The battery pack housing structure according to claim 1, characterized in that, The battery pack housing structure also includes a first limiting part (140); The first limiting part (140) is disposed in the guide groove (110) and located on one side of the sliding limiting part. The first limiting part (140) is disposed between the guide groove (110) and the button body (300), and the first limiting part (140) abuts against and slides with the side wall of the button body (300).

5. The battery pack housing structure according to claim 4, characterized in that, The first limiting part (140) is a limiting protrusion; There are two limiting protrusions, which are respectively provided on the opposite side walls of the guide groove (110). The ends of the two limiting protrusions abut against and slide against the opposite side walls of the button body (300).

6. The battery pack housing structure according to claim 4, characterized in that, The battery pack housing structure also includes a second limiting part (150); The second limiting part (150) is provided in the guide groove (110) and located on the side of the sliding limiting part away from the first limiting part (140). The second limiting part (150) is provided between the guide groove (110) and the button body (300), and the second limiting part (150) abuts against and slides with the side wall of the button body (300).

7. The battery pack housing structure according to claim 6, characterized in that, The second limiting part (150) is a limiting protrusion; There are two limiting protrusions, which are respectively disposed on the opposite side walls of the guide groove (110). The ends of the two limiting protrusions abut against and slide against the opposite side walls of the button body (300).

8. The battery pack housing structure according to claim 1, characterized in that, The button body (300) has a mounting part (320) on the side facing the guide groove (110); The mounting part (320) is used to mount the elastic element.

9. The battery pack housing structure according to any one of claims 1-8, characterized in that, The opposite side walls of the button body (300) have a stepped structure; The outline of the button hole is adapted to the button body (300).

10. A battery pack, characterized in that, Includes the battery pack housing structure as described in any one of claims 1-9.

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