Cover body resetting structure of battery compartment

Abstract

The invention discloses a cover body resetting structure of a battery compartment, relates to the field of battery storage, solves the problem that a battery compartment is too large in size or a compartment cover is difficult to open in the prior art, and mainly adopts the technical scheme that the cover body resetting structure of the battery compartment is used for solving the problem. Hinge joint between the cover body and the machine shell has a covering state that the cover body shields the battery jar, an opening state that the cover body avoids the track of the battery body entering and exiting the battery jar, and a reset state between the covering state and the opening state, and in the reset state, the gravity center of the cover body deviates to the battery jar, and the gravity center of the cover body deviates to the battery jar. The cover body is arranged in the casing, so that the cover body can be converted into a covering state due to gravity, an elastic piece is arranged between the cover body and the casing, so that the cover body has a trend of converting from an opening state to a reset state, and the elastic piece stops applying elastic force to the cover body in the reset state. The battery compartment is mainly used for reducing the size of the battery compartment, and the compartment cover of the battery compartment is easy to open.

Description

Technical Field

[0001] The present application relates to the field of battery storage, and in particular to a cover resetting structure of a battery compartment. Background Art

[0002] In today's era of rapid technological development, batteries, as an important energy storage device, are widely used in various fields. Since batteries are usually composed of chemical substances, once they come into contact with water or moisture, dangerous situations such as short circuits, corrosion, and even explosions may occur. Therefore, when storing batteries, the waterproof function must be considered to ensure the safe operation of the batteries. When designing the battery compartment, it is necessary to fully consider the internal space layout of the electronic equipment and reduce the volume of the battery compartment as much as possible to improve the portability and aesthetics of the equipment. At the same time, the size and shape of the battery also need to be considered to ensure that the battery can be installed and removed smoothly.

[0003] In the prior art, in order to realize the function of automatically resetting the battery compartment cover of the battery compartment used in garden power tools, the angle between the compartment cover and the battery compartment is usually limited so that the compartment cover can be reset by its own weight. However, this also brings certain problems, that is, the battery needs to be taken out smoothly. Figure 6 The width of the battery compartment is increased so that the compartment cover will not affect the removal of the battery, but this will prevent the volume of the battery compartment from being effectively reduced, directly affecting the convenience of the battery compartment. Directly adding reset elements such as springs in the battery compartment will create greater resistance to the opening of the compartment cover, requiring greater force to lift the compartment cover to a suitable angle, which also affects the convenience of placing and removing the battery from the battery compartment. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art that the battery compartment is too large and it is difficult to open the compartment cover, the present application provides a battery compartment cover reset structure, which can reduce the volume of the battery compartment and make it easy to open the battery compartment cover.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a cover reset structure of a battery compartment, wherein the battery compartment includes a casing, a battery slot arranged in the casing and a cover for covering the battery slot, the cover is hinged to the casing, and a detachable battery body is also arranged in the battery slot, and the hinge between the cover and the casing has a covering state in which the cover covers the battery slot, an open state in which the cover avoids the trajectory of the battery body entering and exiting the battery slot, and a reset state between the covering state and the open state, in which the center of gravity of the cover is biased toward the battery slot so that the cover can be transformed into the covering state due to gravity, an elastic member is provided between the cover and the casing so that the cover has a tendency to transform from the open state to the reset state, and in the reset state, the elastic member stops applying elastic force to the cover.

[0006] After adopting the above technical solution, the steps of taking and placing the battery in the battery compartment are as follows: the user first rotates the cover from the closed state to the open state, wherein in the reset state, the cover is not affected by the elastic member, and when the cover enters the open state, the user needs to operate the cover to overcome the elastic force of the elastic member to cause the elastic member to deform, and the user needs to maintain the current position of the cover so that the battery body can be taken and placed smoothly. After the battery body is taken and placed, the user can loosen the cover so that the cover returns to the reset state under the elastic force of the elastic member. In the reset state, the cover is Under the action, it spontaneously changes to the closed state until the cover covers the battery slot. The present application has the following advantages: when the user initially opens the cover, it is easier to open the cover because the cover is not affected by the elastic force of the elastic member. After the battery body is taken out, the cover can be automatically reset by the elastic member and the weight of the cover, and no additional operation is required to close the cover. Therefore, the volume of the battery compartment can be designed according to the size of the battery, without expanding the volume of the battery compartment, and the function of automatically resetting the cover after taking out and placing the battery can also be realized.

[0007] Furthermore, the cover body includes a cantilever fixed thereon, the housing has an opposite surface facing the cover body, and the cantilever passes through the housing and is hinged to a side of the housing away from the opposite surface.

[0008] By adopting the above-mentioned technical solution, through the cantilever structure on the cover body, the hinge point can be moved from the edge of the cover body to other positions, so as to better utilize the space. For example, when the cover body is in the open state, the distance between the cover body and the casing can be increased, making it easier to take the battery body out of the battery slot. In addition, compared with directly hinged on the cover body, the cantilever can be made of stronger materials or have a more reasonably designed structure, thereby enhancing the structural strength of the hinge.

[0009] Furthermore, the housing is provided with a hinge portion extending in a direction away from the opposite surface, the housing is hinged to the cover body via the hinge portion, and the elastic member is arranged on a side of the housing away from the opposite surface.

[0010] By adopting the above-mentioned technical solution, the hinge part extends in the direction away from the opposite surface, providing a larger contact area and supporting force for the hinge, thereby enhancing the structural stability of the entire battery compartment during use. This design can better utilize the external space of the battery compartment and avoid affecting the layout and thickness of the casing due to the hinge structure.

[0011] Furthermore, a C-shaped cantilever is fixedly provided on the cover body. When the cover is in the closed state, the recessed portion of the cantilever faces the hinge part and is located at the lower side of the hinge part, and the elastic member is located between the recessed portion of the cantilever and the housing.

[0012] By adopting the aforementioned technical solution, the recessed part of the C-shaped cantilever can protect the elastic part from the influence of the external environment to a certain extent. For example, it can reduce the erosion of the elastic part by dust, moisture or other impurities and extend the service life of the elastic part. The recessed part of the cantilever provides a relatively stable installation position for the elastic part. During the movement of the cover body, the elastic part can always remain in this specific area and will not be offset or misplaced due to the rotation of the cover body.

[0013] Furthermore, the maximum opening and closing angle between the cover and the housing is greater than or equal to 90°.

[0014] With the above technical solution, when the maximum opening and closing angle between the cover and the housing is greater than or equal to 90°, the user can take out and put in the battery.

[0015] Furthermore, when the cover body changes from the reset state to the open state, the elastic member generates a tensile deformation and gradually accumulates elastic potential energy, or, when the cover body changes from the reset state to the open state, the elastic member generates a torsional deformation and gradually accumulates elastic potential energy, or, when the cover body changes from the reset state to the open state, the elastic member generates a compressive deformation and gradually accumulates elastic potential energy.

[0016] According to the above technical solution, when the elastic member is set as a tension spring, one end of the tension spring is connected to the cover body, and the other end is set as a hook portion. The housing is correspondingly provided with a handle portion on the moving path of the hook portion. When the cover body is rotated to the open state, the hook portion is connected to the handle portion, so that the tension spring is stretched and deformed. When the elastic member is set as a pressure spring, an abutment portion is provided on the cover body, one end of the pressure spring is fixed to the housing, and the other end is a tight abutment portion located on the moving path of the abutment portion. When the cover body is rotated to an open state, the abutment portion abuts against the tight abutment portion of the pressure spring, causing the pressure spring to generate compression deformation; When the elastic member is configured as a torsion spring, the torsion spring is arranged around the cover body shaft, one end of which is connected to the shaft, and the other end of which is provided with a certain rotation gap with the shaft seat of the corresponding casing. When the cover body is rotated to an open state, the torsion spring abuts against the shaft seat, causing the torsion spring to produce a torsional deformation.

[0017] Furthermore, when the elastic member is compressed and deformed, the elastic member is a pressure spring or a spring sheet or a rubber pad, one end of which is connected to the housing and the other end of which is in contact with the cantilever.

[0018] With the above technical solution, different elastic parts have different adaptability to the working environment. Pressure springs and springs are usually suitable for relatively dry and clean environments, while rubber pads can withstand harsh environments such as humidity and dust to a certain extent.

[0019] Furthermore, the battery body enters and exits the battery slot in a vertical direction.

[0020] By adopting the above-mentioned technical solution, the battery body enters and exits the battery slot in the vertical direction, which can make full use of the height space of the equipment. For some electronic devices or garden power tools with limited horizontal space, the battery can be easily installed and removed without increasing the overall size.

[0021] Furthermore, the cover of the casing and the cover of the cover body are both provided with magnets that attract each other, or one of the cover of the casing and the cover body is provided with a magnet, and the other is provided with a material that can be attracted by the magnet.

[0022] By adopting the above-mentioned technical solution, when mutually attractive magnets or magnets and attractable materials are provided at the covering part of the casing and the cover body, a certain attractive force can be generated in the covered state, so that the cover body and the casing fit tightly, and the attractive force of the magnet can make the cover body automatically align and adsorb on the casing when closed, without the need for the user to perform precise alignment and press hard.

[0023] Furthermore, the cover body is provided with a cover opening handle away from the hinge.

[0024] By adopting the above-mentioned technical solution, the mobile phone case with an opening handle provides the user with a special force application point, making the operation of opening the cover body more convenient and quick. The user can easily hold the opening handle and apply appropriate force to open the cover body without having to find a force application point on other parts of the cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present application is further described below in conjunction with the accompanying drawings: Figure 1 A schematic diagram of a cover restoration structure of a battery compartment of the present application; Figure 2 is a cross-sectional view of the casing; Figure 3 for Figure 2 A magnified image of point A; Figure 4 is a schematic diagram of the bottom of the shell; Figure 5 This is a side view schematic diagram of a cover reset structure of a battery compartment of the present application; Figure 6 It is a side view schematic diagram of the prior art.

[0026] Description of the drawings: 1. Casing; 11. Battery slot; 12. Hinge; 2. Cover; 21. Cantilever; 22. Abutment; 3. Battery body; 4. Elastic member; 41. Abutment; 5. Magnet; 6. Steel nail; 7. Cover opening handle; 8. Screw. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0028] The terms "first", "second", etc. (if any) in the specification and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish before a certain technical feature, it does not necessarily indicate that it has "first". It should be understood that in this application, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in this application, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0029] The following specific embodiments are used to describe the technical solution of the present application in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0030] Embodiment 1: like Figures 1 to 5 As shown, the present application provides a cover reset structure of a battery compartment, wherein the battery compartment includes a casing 1, a battery slot 11 arranged in the casing 1 and a cover 2 for covering the battery slot 11, the cover 2 is hinged to the casing 1, and a detachable battery body 3 is also arranged in the battery slot 11, and the hinge between the cover 2 and the casing 1 has a covering state in which the cover 2 covers the battery slot 11, an open state in which the cover 2 avoids the trajectory of the battery body 3 entering and exiting the battery slot 11, and a reset state between the covering state and the open state, in which the center of gravity of the cover 2 is biased toward the battery slot 11, so that the cover 2 can be transformed into the covering state due to gravity, an elastic member 4 is provided between the cover 2 and the casing 1, so that the cover 2 has a tendency to transform from the open state to the reset state, and in the reset state, the elastic member 4 stops applying elastic force to the cover 2.

[0031] After adopting the above technical solution, the steps of taking and placing the battery in the battery compartment are as follows: the user first rotates the cover body 2 from the closed state to the open state, wherein in the reset state, the cover body 2 is not affected by the elastic member 4, and when the cover body 2 enters the open state, the user needs to operate the cover body 2 to overcome the elastic force of the elastic member 4, so that the elastic member 4 is deformed, and the user needs to maintain the current position of the cover body 2 so that the battery body 3 can be taken and placed smoothly. After the battery body 3 is taken and placed, the user can loosen the cover body 2, so that the cover body 2 returns to the reset state under the elastic force of the elastic member 4. In the reset state, the cover body 2 is in a state of being pressed by gravity. Under the action of , it spontaneously changes to the closed state until the cover body 2 covers the battery slot 11. The present application has the following advantages: when the user initially opens the cover body 2, it is easier to open the cover because the cover body 2 is not affected by the elastic force of the elastic member 4. After the battery body 3 is taken out, the cover body 2 can automatically reset itself through the elastic member 4 and the self-weight of the cover body 2. No additional operation is required to close the cover body 2. Therefore, the volume of the battery compartment can be designed according to the size of the battery, without expanding the volume of the battery compartment, and the function of automatically resetting the cover body 2 after taking out and placing the battery can also be achieved.

[0032] Specifically, the transitions among the closed state, the reset state and the open state are continuous; when the cover 2 is opened to a position where it does not affect the placement and removal of the battery body 3, it can continue to rotate away from the battery slot 11 until the cover 2 is at an extreme position, and this range belongs to the open state.

[0033] Preferably, when the cover body 2 is in the extreme position, the elastic force of the elastic member 4 is slightly greater than the gravity component of the cover body 2 .

[0034] It can be understood that, in the reset stage, the elastic member 4 stops applying elastic force to the cover body 2 , and the elastic member 4 is disconnected from the cover body 2 , while the elastic member 4 and the housing 1 always maintain a connection relationship.

[0035] Furthermore, the cover body 2 includes a cantilever 21 fixed thereon, the housing 1 has an opposite surface facing the cover body 2, and the cantilever 21 passes through the housing 1 and is hinged to a side of the housing 1 away from the opposite surface.

[0036] By adopting the above-mentioned technical solution, through the structure of the cantilever 21 on the cover body 2, the hinge point can be moved from the edge of the cover body 2 to other positions, so as to better utilize the space. For example, when the cover body 2 is in the open state, the distance between the cover body 2 and the casing 1 can be increased, making it easier to take the battery body 3 out of the battery slot 11. In addition, compared with directly hinged on the cover body 2, the cantilever 21 can be made of stronger materials or have a more reasonably designed structure, thereby enhancing the structural strength of the hinge.

[0037] Specifically, two cantilevers 21 are provided to ensure that the cover body 2 rotates smoothly and increase the service life of the cover body 2.

[0038] Furthermore, the housing 1 is provided with a hinge portion 12 extending in a direction away from the opposite surface, and the housing 1 is hinged to the cover body 2 via the hinge portion 12 .

[0039] By adopting the above-mentioned technical solution, the hinge part 12 extends in the direction away from the opposite surface, providing a larger contact area and supporting force for the hinge, thereby enhancing the structural stability of the entire battery compartment during use. This design can better utilize the external space of the battery compartment and avoid affecting the layout and thickness of the casing 1 due to the hinge structure.

[0040] Furthermore, a C-shaped cantilever 21 is fixedly provided on the cover body 2. When in the closed state, the recessed portion of the cantilever 21 faces the hinge 12 and is located at the lower side of the hinge 12. The elastic member 4 is located between the recessed portion of the cantilever 21 and the hinge 12.

[0041] By adopting the aforementioned technical solution, the recessed portion of the C-shaped cantilever 21 can protect the elastic member 4 from the influence of the external environment to a certain extent. For example, it can reduce the erosion of the elastic member 4 by dust, moisture or other impurities and extend the service life of the elastic member 4. The recessed portion of the cantilever 21 provides a relatively stable installation position for the elastic member 4. During the movement of the cover body 2, the elastic member 4 can always remain in this specific area and will not be offset or misaligned due to the rotation of the cover body 2.

[0042] Furthermore, the maximum opening and closing angle between the cover body 2 and the housing 1 is greater than or equal to 90°.

[0043] With the above technical solution, when the maximum opening and closing angle between the cover 2 and the housing 1 is greater than or equal to 90°, the user can take out or put in the battery.

[0044] Further, such as Figure 3 As shown, when the cover body 2 changes from the reset state to the open state, the elastic member 4 generates compression deformation and gradually accumulates elastic potential energy.

[0045] By adopting the above-mentioned technical solution, when the elastic member 4 is set as a pressure spring, an abutment portion 22 is provided on the cover body 2, one end of the pressure spring is fixed to the casing 1, and the other end is a tightening portion 41 on the moving path of the abutment portion 22. When the cover body 2 is rotated to an open state, the abutment portion 22 abuts against the tightening portion 41 of the pressure spring, causing the pressure spring to produce a compression deformation.

[0046] Preferably, the pressure spring is a conical spring, and the large end is fixed to the housing 1 , and the small end is the abutting portion 41 .

[0047] Furthermore, the battery body 3 enters and exits the battery slot 11 along the vertical direction.

[0048] By adopting the above-mentioned technical solution, the battery body 3 enters and exits the battery slot 11 in the vertical direction, which can make full use of the height space of the equipment. For some electronic devices or garden power tools with limited horizontal space, the battery can be easily installed and removed without increasing the overall size.

[0049] Furthermore, when the elastic member 4 generates compression deformation, the elastic member 4 is a pressure spring or a spring sheet or a rubber pad with one end connected to the housing 1 and the other end abutting against the cantilever 21 .

[0050] With the above technical solution, different elastic members 4 have different adaptability to the working environment. Pressure springs and springs are usually suitable for relatively dry and clean environments, while rubber pads can withstand harsh environments such as humidity and dust to a certain extent.

[0051] Specifically, one end of the pressure spring is connected to the casing 1 as follows: the top ring of the pressure spring is embedded in the mounting groove of the casing, and the mounting groove presses the end top ring of the pressure spring into the mounting groove of the casing through a cross abutment plate, and one end of the abutment plate is connected to a ring with a through hole so that the bolt can be connected to the screw hole of the casing after passing through the through hole, thereby fixing the abutment plate on the casing and tightly embedding the pressure spring on the casing.

[0052] Furthermore, the cover of the casing 1 and the cover of the cover body 2 are both provided with magnets that attract each other, or one of the cover of the casing 1 and the cover of the cover body 2 is provided with a magnet, and the other is provided with a material that can be attracted by the magnet.

[0053] By adopting the above-mentioned technical solution, when mutually attractive magnets or magnets and attractable materials are provided at the covering part of the casing 1 and the cover body 2, a certain attractive force can be generated in the covered state, so that the cover body 2 and the casing 1 fit tightly, and the attractive force of the magnet can make the cover body 2 automatically align and adsorb on the casing 1 when closed, without the need for the user to perform precise alignment and press hard.

[0054] Specifically, steel nails 6 are installed on the opposite sides of the hinge of the cover body 2, and magnets 5 are installed on the opposite sides of the hinge of the casing 1. The magnets 5 are fixed to the casing 1 by screws 8. The above-mentioned steel nails 6 and magnets 5 are provided in two groups, which are respectively arranged at the corners so as to ensure that the cover body 2 is in the closed state.

[0055] Furthermore, the cover body 2 is provided with a cover opening handle 7 away from the hinge.

[0056] By adopting the above-mentioned technical solution, the cover opening handle 7 and the housing 1 provide the user with a special force application point, making the operation of opening the cover body 2 more convenient and quick. The user can easily hold the cover opening handle 7 and apply appropriate force to open the cover body 2 without having to find a force application point in other parts of the cover body 2.

[0057] Embodiment 2: The difference from the first embodiment is that, in the reset state, the elastic member 4 is disconnected from the housing 1 .

[0058] In the resetting stage, the elastic member 4 stops applying elastic force to the housing 1 , and the elastic member 4 may be disconnected from the housing 1 , while the elastic member 4 and the cover 2 always maintain a connection relationship.

[0059] Embodiment 3: The difference from the first embodiment is that, in the reset state, the elastic member 4 is disconnected from the housing 1 and the cover 2 .

[0060] In the reset stage, the elastic member 4 stops applying elastic force to the cover body 2. The elastic member 4 may be disconnected from the casing 1 and the cover body 2 at the same time. The casing 1 or the cover body 2 is provided with a platform for placing the elastic member 4, so that the elastic member 4 can be placed thereon, but is not connected thereto.

[0061] Embodiment 4: The difference from the first embodiment is that, in the reset state, the elastic member 4 is connected to the housing 1 and the cover 2 .

[0062] In the reset stage, the elastic member 4 stops applying elastic force to the cover body 2. The elastic member 4 may be a tension spring and is also connected to the casing 1 and the cover body 2. At this time, although the elastic member 4 is connected to the casing 1 and the cover body 2, neither the casing 1 nor the cover body 2 is affected by the elastic force brought by the elastic member 4. At this time, the elastic member 4 is like a loose rope connecting the two.

[0063] Embodiment 5: The difference from the first embodiment is that when the cover body changes from the reset state to the open state, the elastic member generates a tensile deformation and gradually accumulates elastic potential energy.

[0064] At this time, the elastic member 4 can be set as a tension spring, one end of which is connected to the cover body 2, and the other end is set as a hook part. The housing 1 is correspondingly provided with a handle part on the moving path of the hook part. When the cover body 2 is rotated to the open state, the hook part is connected to the handle part, so that the tension spring is stretched and deformed. It can be understood that the elastic member 4 can also be set as an elastic member that relies on stretching deformation, such as a rubber band.

[0065] Embodiment 6: The difference from the first embodiment is that when the cover body 2 changes from the reset state to the open state, the elastic member undergoes torsional deformation and gradually accumulates elastic potential energy.

[0066] At this time, the elastic member 4 is configured as a torsion spring, which is arranged around the rotating shaft of the cover body 2, with the first pin connected to the rotating shaft, and the second pin and the corresponding shaft seat of the housing 1 having a certain rotation gap. When the cover body 2 is rotated to the open state, the second pin abuts against the shaft seat, causing the torsion spring to produce torsional deformation.

[0067] It can be understood that the torsion spring can also be set on the rotating shaft of the casing 1, the first pin is connected to the rotating shaft, and the second pin and the corresponding shaft seat of the cover body 2 are provided with a certain rotation gap. When the cover body 2 is rotated to the open state, the second pin abuts against the shaft seat, causing the torsion spring to produce torsional deformation.

[0068] In addition to the above-mentioned preferred embodiments, the present application also has other implementation modes. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present application.

Claims

1. A cover resetting structure for a battery compartment, comprising a housing (1), a battery slot (11) arranged in the housing (1), and a cover (2) for covering the battery slot (11), wherein the cover (2) is hingedly connected to the housing (1), and a detachable battery body (3) is further arranged in the battery slot (11), characterized in that: The hinge between the cover body (2) and the housing (1) includes a closed state in which the cover body (2) covers the battery slot (11), an open state in which the cover body (2) avoids the trajectory of the battery body (3) entering and exiting the battery slot (11), and a reset state between the closed state and the open state. In the reset state, the center of gravity of the cover body (2) is biased toward the battery slot (11), so that the cover body (2) can be transformed into the closed state due to gravity. An elastic member (4) is provided between the cover body (2) and the housing (1), so that the cover body (2) has a tendency to transform from the open state to the reset state, and in the reset state, the elastic member (4) stops applying elastic force to the cover body (2).

2. A battery compartment cover resetting structure according to claim 1, characterized in that: The cover body (2) comprises a cantilever (21) fixed thereon, the casing (1) has an opposite surface facing the cover body (2), and the cantilever (21) passes through the casing (1) and is hinged to a side of the casing (1) away from the opposite surface.

3. A battery compartment cover resetting structure according to claim 2, characterized in that: The housing (1) is provided with a hinge portion (12) extending in a direction away from the opposite surface, the housing (1) is hinged to the cover body (2) via the hinge portion (12), and the elastic member (4) is arranged on a side of the housing (1) away from the opposite surface.

4. A battery compartment cover resetting structure according to claim 3, characterized in that: A C-shaped cantilever (21) is fixedly provided on the cover body (2); when the cover is in a closed state, the recessed portion of the cantilever (21) faces the hinged portion (12) and is located below the hinged portion (12); and the elastic member (4) is located between the recessed portion of the cantilever (21) and the housing (1).

5. The cover resetting structure of a battery compartment according to claim 1, characterized in that: The maximum opening and closing angle between the cover body (2) and the housing (1) is greater than or equal to 90°.

6. A battery compartment cover resetting structure according to claim 1, characterized in that: When the cover body (2) changes from the reset state to the open state, the elastic member (4) generates a tensile deformation and gradually accumulates elastic potential energy; or, when the cover body (2) changes from the reset state to the open state, the elastic member (4) generates a torsional deformation and gradually accumulates elastic potential energy; or, when the cover body (2) changes from the reset state to the open state, the elastic member (4) generates a compressive deformation and gradually accumulates elastic potential energy.

7. A battery compartment cover resetting structure according to claim 3 or 4, characterized in that: When the elastic member (4) generates compression deformation, the elastic member (4) is a pressure spring or a spring sheet or a rubber pad with one end connected to the housing (1) and the other end abutting against the cantilever (21).

8. The cover restoration structure of a battery compartment according to claim 1, characterized in that: The battery body (3) enters and exits the battery slot (11) along the vertical direction.

9. The cover restoration structure of a battery compartment according to claim 1, characterized in that: The cover of the casing (1) and the cover of the cover body (2) are both provided with magnets that attract each other, or one of the cover of the casing (1) and the cover of the cover body (2) is provided with a magnet and the other is provided with a material that can be attracted by the magnet.

10. The cover resetting structure of a battery compartment according to claim 1, characterized in that: The cover body (2) is provided with a cover opening handle (7) away from the hinged position.

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