Lithium battery fixing structure and intelligent door lock

Abstract

The lithium battery fixing structure comprises a lithium battery, a door lock assembly, a middle frame, a shifting rod assembly and a battery cover, the middle frame is provided with a containing groove and at least two inserting grooves, the inserting grooves are located on the two sides outside the containing groove in the first direction respectively, the axis direction of each inserting groove is the first direction, and the axis direction of each inserting groove is the second direction. The directions of the slots are the same, the door lock assembly is installed on the middle frame, and the lithium battery is installed in the containing groove and electrically connected with the door lock assembly. The driving lever assembly is slidably installed on the middle frame in the second direction. The battery cover comprises a sliding cover, an arc-shaped plate and at least two insertion blocks, the arc-shaped plate and the insertion blocks are arranged on the inner side of the sliding cover in a protruding mode, the arc-shaped plate and the sliding cover define a limiting groove formed in the side direction, and when the sliding cover slides in the first direction to cover the lithium battery in the containing groove, the insertion blocks are inserted into the insertion grooves in a sliding mode; the shifting rod assembly is slidably inserted into the limiting groove in the second direction, the battery cover can be prevented from moving in the opposite direction, and the first direction is perpendicular to the second direction.

Description

Technical Field

[0001] The utility model relates to the technical field of door lock structures, and in particular to a lithium battery fixing structure and an intelligent door lock. Background Art

[0002] At present, with the improvement of living standards, more and more home users pay more attention to family safety issues, and door locks play a vital role as the first line of defense for family safety. With the continuous development of science and technology and the popularization of intelligent products, smart door locks have gradually entered thousands of households. The intelligence of door locks not only improves the safety performance of traditional metal key door locks, but also brings many conveniences to people. Smart door locks support multiple unlocking methods and are no longer restricted to unlocking with keys. Even if you forget to bring your keys, you don’t have to worry about not being able to enter the house.

[0003] Most smart door locks on the market are installed vertically. The battery cover has multiple clips and the middle frame has multiple slots. When the battery cover is pushed upward, the clips on it snap into the slots of the middle frame, thus securing the battery cover to the middle frame and covering the lithium battery inside, thus preventing it from falling out. However, this installation method is not secure. When the door is closed due to wind or force, the clips can easily detach from the slots, causing the battery cover to fall off the middle frame, causing the battery cover to disengage and the lithium battery installed inside the middle frame to fall out, making it impossible to open the door. Utility Model Content

[0004] The purpose of the utility model is to provide a lithium battery fixing structure and an intelligent door lock, so as to solve the technical problem that the battery cover of the existing intelligent door lock is provided with multiple inserts and the middle frame is provided with multiple slots. When the battery cover is pushed from bottom to top, the inserts thereon are respectively inserted into the respective slots of the middle frame. This installation method of the battery cover is not firm. When the door is closed by wind or when the door is closed forcefully, the inserts are easily separated from the slots, causing the battery cover to fall off the middle frame, and the lithium battery installed inside the middle frame also falls off, resulting in the technical problem that the door cannot be opened.

[0005] The utility model provides a lithium battery fixing structure, comprising:

[0006] lithium batteries;

[0007] Door lock assembly;

[0008] A middle frame is provided with a receiving groove and at least two slots, each of the slots is located on both sides outside the receiving groove along a first direction, the axis direction of each slot is the first direction, and the orientations of each slot are the same, the door lock assembly is mounted on the middle frame, and the lithium battery is mounted in the receiving groove and electrically connected to the door lock assembly;

[0009] a shift lever assembly, slidably mounted on the middle frame along a second direction;

[0010] The battery cover includes a sliding cover, a curved plate and at least two inserts, wherein the curved plate and the inserts are both protruded from the inner side of the sliding cover, and the curved plate and the sliding cover enclose a laterally arranged limit groove. When the sliding cover slides along the first direction to cover the lithium battery in the accommodating groove, each of the inserts slides and is respectively inserted into each of the slots, and the lever assembly slides along the second direction to be inserted into the limit groove, and the first direction is perpendicular to the second direction.

[0011] Furthermore, the middle frame includes a frame body, a first boss, a second boss and at least one boss, the accommodating groove is provided on the frame body, the first boss and the second boss are both protruding from the frame body and are respectively located on both sides outside the accommodating groove, the boss is provided on the first boss, and the connection between the boss and the first boss and the connection between the second boss and the frame body are both provided with the slot, and the door lock assembly and the lever assembly are both connected to the frame body.

[0012] Furthermore, the sliding cover includes a sealing plate, a first side plate and two second side plates, the first side plate and the second side plate are both protruding from the edge of one side of the sealing plate, the two ends of the first side plate are respectively connected to the two second side plates, the first side plate and the sealing plate are both protruding with at least one plug-in block, the arc plate is fixed to the sealing plate and connected to the first side plate, and the arc plate, the sealing plate and the first side plate together enclose the limiting groove.

[0013] Furthermore, the battery cover further comprises at least two positioning protrusions, each of the positioning protrusions being protruded on the two second side plates;

[0014] The middle frame also includes two oppositely arranged baffles, which are respectively protruded on both sides of the frame body along the second direction. The accommodating groove is located between the two baffles. At least one U-shaped positioning groove is provided on a side of the baffle away from the accommodating groove. The axial direction of the positioning groove is arranged along the third direction. Each positioning rib is respectively inserted into each positioning groove. The first direction, the second direction and the third direction are perpendicular to each other.

[0015] Furthermore, the lithium battery fixing structure also includes a cover plate, the shift rod assembly includes a fastener, a button and a spring, the middle frame is also provided with a storage groove, and a bar hole and a shift hole connected to the storage groove, the storage groove and the shift hole are staggered with the sliding cover, the spring is located in the storage groove, one end of the button is located in the storage groove and presses the spring on the inner wall of the storage groove, and the other end is located in the shift hole, one end of the fastener is located in the storage groove and connected to the button, and the other end passes through the bar hole and is inserted into the limit groove, the spring can push the fastener to run along the second direction to the limit groove, and the cover plate is installed on the middle frame and covers the storage groove.

[0016] Furthermore, the button includes a slider, a shift block and a support rod, the slider is provided with a card slot corresponding to the strip hole, the shift block and the support rod are respectively protruded on two adjacent outer wall surfaces of the slider, the slider and the support rod are both located in the storage groove, the shift block is located in the shift hole, the spring is sleeved on the support rod and abuts against the inner wall of the storage groove, and the fastener is installed in the card slot.

[0017] Furthermore, the fastener includes a gusset plate and an insert plate protruding from the gusset plate, the gusset plate is located in the receiving groove and connected to the button, and the insert plate is located in the limiting groove after passing through the bar hole.

[0018] Furthermore, the fastener is provided with an inclined portion for abutting against the arc-shaped plate.

[0019] Furthermore, the door lock assembly includes a lock body, an unlocking motor, a circuit board, a password disk and an interface board. The middle frame is also penetrated by a through hole connected to the accommodating slot. The interface board is installed on the through hole and electrically connected to the lithium battery. The lock body, the unlocking motor, the circuit board and the password disk are all fixed on the middle frame, and the unlocking motor, the password disk and the interface board are all electrically connected to the circuit board.

[0020] The utility model also provides an intelligent door lock, comprising the lithium battery fixing structure as described above.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The middle frame of the utility model is provided with a receiving groove and at least two slots, and the lithium battery is installed in the receiving groove. The battery cover includes a sliding cover, a curved plate and at least two plug-ins. The curved plate and the plug-in blocks are all protruding from the inner side of the sliding cover. The curved plate and the sliding cover enclose a laterally arranged limit groove. A lever assembly is slidably installed on the middle frame. Compared with the traditional technology, additional limit grooves and lever assemblies are added. When the sliding cover slides in a first direction and covers the lithium battery in the receiving groove, each plug-in block is respectively inserted into each slot, and the lever assembly slides in a second direction and is inserted into the limit groove. When the door is closed by wind or force, the cooperation of the lever assembly and the limit groove can effectively prevent the battery cover from running in the opposite direction, so that each plug-in block is always stuck in each slot, preventing the battery cover from falling off the middle frame, thereby stably fixing the lithium battery in the receiving groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a lithium battery fixing structure provided in an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 explosion Figure 1 ;

[0025] Figure 3 for Figure 1 explosion Figure 2 ;

[0026] Figure 4 A schematic structural diagram of a battery cover provided in an embodiment of the present utility model;

[0027] Figure 5 A schematic diagram of the structure of the lithium battery fixing structure provided by an embodiment of the present utility model after removing the battery cover and the lithium battery;

[0028] Figure 6 for Figure 5 A partial enlarged schematic diagram of point A in the middle;

[0029] Figure 7 A schematic structural diagram of a lever assembly provided in an embodiment of the present utility model;

[0030] Figure 8 for Figure 7 Exploded diagram;

[0031] Figure 9 A cross-sectional view of a lithium battery fixing structure provided by an embodiment of the present utility model;

[0032] Figure 10 A schematic diagram of the structure of the lithium battery fixing structure provided by an embodiment of the present invention, excluding the cover plate and the lever assembly;

[0033] Figure 11 for Figure 10A partial enlarged schematic diagram of point B in the middle;

[0034] Figure 12 This is a schematic structural diagram of a lithium battery provided in an embodiment of the present utility model.

[0035] In the picture:

[0036] 10. Lithium battery; 11. Battery body; 12. Socket end; 13. USB interface; 20. Door lock assembly; 21. Lock body; 22. Circuit board; 23. Interface board; 30. Middle frame; 31. Slot; 32. Frame; 321. Receiving slot; 322. First frame; 323. Second frame; 324. Through hole; 33. First boss; 34. Second boss; 35. Bump; 36. Baffle; 361. Positioning slot; 37. Storage slot; 371. Table; 38. Strip hole; 3 9. Dial hole; 40. Dial lever assembly; 41. Fastener; 411. Buckle plate; 412. Insert plate; 413. Inclined portion; 42. Button; 421. Slider; 4211. Slot; 422. Dial block; 423. Support rod; 43. Spring; 50. Battery cover; 51. Sliding cover; 511. Closing plate; 512. First side plate; 513. Second side plate; 52. Curved plate; 53. Insert block; 54. Limiting groove; 55. Positioning ridge; 60. Cover plate; 70. Fastener; 80. Gasket;

[0037] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0038] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0039] See also Figures 1 to 6 As shown, the embodiment of the present invention discloses a lithium battery fixing structure, which is mainly used in smart door locks. The lithium battery fixing structure includes a lithium battery 10, a door lock assembly 20, a middle frame 30, a lever assembly 40 and a battery cover 50. The middle frame 30 can be vertically mounted on an external door frame by screws. The middle frame 30 is provided with a receiving groove 321 and at least two slots 31. Each slot 31 is located on both sides outside the receiving groove 321 along a first direction X. The axial direction of each slot 31 is the first direction X. The orientation of each slot 31 is the same and is all arranged toward the bottom side of the vertically arranged middle frame 30. The door lock assembly 20 is mounted on the middle frame 30, the lithium battery 10 is mounted in the receiving groove 321 and is electrically connected to the door lock assembly 20, and the lever assembly 40 is slidably mounted on the middle frame 30 along the second direction Y. The first direction X is the length direction of the middle frame 30, the second direction Y is the width direction of the middle frame 30, and the first direction X is perpendicular to the second direction Y.

[0040] The battery cover 50 includes a sliding cover 51, a curved plate 52 and at least two insert blocks 53. The curved plate 52 and the insert blocks 53 are both protruding from the inner side of the sliding cover 51. The curved plate 52 and the sliding cover 51 enclose a laterally arranged limit groove 54. When the sliding cover 51 slides along the first direction X to cover the lithium battery 10 in the accommodating groove 321, each insert block 53 slides and is inserted into each slot 31 respectively. The lever assembly 40 slides along the second direction Y, that is, laterally to the left, and is inserted into the limit groove 54, thereby buckling the battery cover 50. The cooperation between the lever assembly 40 and the limit groove 54 can effectively prevent the battery cover 50 from running in the opposite direction, so that each insert block 53 is always stuck in each slot 31. The fixation of the battery cover 50 is more secure, meeting various usage scenarios of the smart door lock, and preventing the lithium battery 10 from falling due to violent slamming of the door.

[0041] In some embodiments, there are four slots 31 and four insert blocks 53, two of which are close to the top side of the accommodating groove 321, and the other two slots 31 are close to the bottom side of the accommodating groove 321. When the battery cover 50 is pushed to slide relative to the middle frame 30, the four insert blocks 53 can be respectively inserted into the four slots 31 to limit the movement of the battery cover 50 in the third direction Z. The battery cover 50 is pre-installed on the middle frame 30, and the lever assembly 40 is slid along the second direction Y and inserted into the limiting groove 54. The lever assembly 40 limits the movement of the battery cover 50 in the first direction X. The battery cover 50 only needs to control the movement in the first direction X and the third direction Z to be fixed. The third direction Z is the thickness direction of the middle frame 30, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0042] In this embodiment, the middle frame 30 includes a frame body 32, a first boss 33, a second boss 34 and at least one protrusion 35. The number of protrusions 35 is two, and the receiving groove 321 is provided on the frame body 32. The first boss 33 and the second boss 34 are both convexly provided on the frame body 32 and are respectively located on both sides outside the receiving groove 321. The protrusion 35 is provided on the end of the first boss 33 away from the frame body 32. The connection between the protrusion 35 and the first boss 33 and the connection between the second boss 34 and the frame body 32 are both provided with In the slots 31 described above, the distance between the end of the first boss 33 away from the door frame and the door frame is greater than the distance between the end of the second boss 34 away from the door frame and the door frame, so that a height difference is formed between the two groups of slots 31, so that each plug-in block 53 on the battery cover 50 can be slidably inserted into each slot 31, and the door lock assembly 20 and the lever assembly 40 are both connected to the frame 32. In order to facilitate the insertion of each plug-in block 53 into each slot 31, the shape of each plug-in block 53 can be designed separately as needed.

[0043] In some embodiments, the frame body 32 includes a first frame 322 and a second frame 323 connected to one end of the first frame 322. The distance between the end of the first frame 322 away from the door frame and the door frame is greater than the distance between the end of the second frame 323 away from the door frame and the door frame. The first frame 322 and the second frame 323 form a stepped shape. The door lock assembly 20 is installed on the first frame 322, and the lever assembly 40, the lithium battery 10 and the battery cover 50 are all installed on the second frame 323. After the battery cover 50 is installed in place, it will abut against the outer wall of the first frame 322.

[0044] The sliding cover 51 includes a sealing plate 511, a first side plate 512 and two second side plates 513. The first side plate 512 and the second side plate 513 are both protruded on the edge of one side of the sealing plate 511. The two ends of the first side plate 512 are respectively connected to the two second side plates 513. The first side plate 512 and the two second side plates 513 together constitute a U-shaped structure. At least one plug block 53 is protruded from the first side plate 512 and the sealing plate 511. Specifically, two plug blocks 53 are protruded from the first side plate 512 and the sealing plate 511. The arc plate 52 is fixed on the sealing plate 511 and connected to the first side plate 512. The arc plate 52, the sealing plate 511 and the first side plate 512 together enclose the aforementioned limiting groove 54.

[0045] The battery cover 50 also includes at least two positioning ribs 55, each of which is protruded from the two second side plates 513. The middle frame 30 also includes two oppositely arranged baffles 36, which are protruded from both sides of the frame body 32 along the second direction Y. The accommodating groove 321 is located between the two baffles 36. The side of the baffle 36 away from the accommodating groove 321 is provided with at least one U-shaped positioning groove 361. The axial direction of the positioning groove 361 is set along the third direction Z. Each positioning rib 55 is respectively inserted into each positioning groove 361 to assist in fixing the battery cover 50 along the first direction X to prevent the battery cover 50 from shaking.

[0046] In some embodiments, there are two positioning ribs 55, and the two positioning ribs 55 are respectively arranged on the two second side plates 513. The shape of the positioning ribs 55 is semi-cylindrical, and the outer circumferential size of the positioning ribs 55 gradually decreases from the end away from the sealing plate 511 to the end close to the sealing plate 511. The number of positioning grooves 361 is four, and the four positioning grooves 361 are respectively arranged on the two baffles 36 in groups of two. Since the battery cover 50 is made of plastic material, the battery cover 50 has a certain flexibility. When the battery cover 50 is pushed relative to the middle frame 30 along the first direction X for installation, the positioning ribs 55 will deform the baffle 36. When the battery cover 50 moves into place, the two positioning ribs 55 are respectively inserted into the corresponding positioning grooves 361 of the two baffles 36.

[0047] Please see further Figures 3 to 11 In this embodiment, the lithium battery fixing structure further includes a cover plate 60 and a plurality of fasteners 70. The lever assembly 40 includes a fastener 41, a button 42 and a spring 43. The middle frame 30 is further provided with a receiving groove 37, a strip hole 38 and a shift hole 39. The strip hole 38 and the shift hole 39 are both connected to the receiving groove 37. When the middle frame 30 is vertically arranged, the receiving groove 37 is arranged on the side of the middle frame 30 facing the door frame. The strip hole 38 corresponds to the sealing plate 511 in the sliding cover 51. The strip hole 38 is located between the receiving groove 37 and the slot 31 on one side of the bottom thereof. The shift hole 39 is opened at the bottom of the middle frame 30. The receiving groove 37 and the shift hole 39 are both staggered with the sliding cover 51. The spring 43 is located in the receiving groove 37. One end of the button 42 is located The spring 43 is pressed against the inner wall of the storage groove 37 and the other end is located in the dial hole 39. One end of the fastener 41 is located in the storage groove 37 and connected to the button 42, and the other end passes through the bar hole 38 and is inserted into the limit groove 54. Under the elastic force of the spring 43, the spring 43 can push the fastener 41 and the button 42 to run together in the second direction Y, and move the fastener 41 to the limit groove 54 to prevent the battery cover 50 from running in the opposite direction. The cover plate 60 is installed on the middle frame 30 through a plurality of fasteners 70 and covers the button 42 and the spring 43 together in the storage groove 37. The strength of the spring 43 is adjustable, which effectively prevents the battery cover 50 from disengaging in the second direction Y. The fastener 70 can be a screw.

[0048] The button 42 includes a slider 421, a shift block 422 and a support rod 423. The slider 421 is provided with a card slot 4211 corresponding to the bar hole 38. The card slot 4211 is a U-shaped structure arranged to penetrate along the first direction X. The shift block 422 and the support rod 423 are respectively protruded from two adjacent outer wall surfaces of the slider 421. Specifically, the shift block 422 is protruded from the bottom of the slider 421, and the support rod 423 is protruded from one side surface of the slider 421. The slider 421 and the support rod 423 are both located in the receiving groove 37. The shift block 422 slides in the shift hole 39. The spring 43 is sleeved on the support rod 423 and abuts against the inner side wall of the receiving groove 37. The length of the support rod 423 is less than the length of the spring 43. One end of the fastener 41 is installed in the card slot 4211, and the other end passes through the bar hole 38 and is inserted into the limiting groove 54. By shifting the shift block 422, the fastener 41 can enter or exit the limiting groove 54.

[0049] In some embodiments, a platform 371 is protruded from the inner wall of the receiving slot 37 . The length of the platform 371 is smaller than the length of the slot 4211 . The platform 371 abuts against the fastener 41 to facilitate quick disassembly and assembly of the lever assembly 40 later.

[0050] The fastener 41 includes a buckle plate 411 and an insert plate 412 protruding from the buckle plate 411. The fastener 41 is a "T"-shaped structure. The buckle plate 411 is located in the storage slot 37 and is connected to the button 42. The buckle plate 411 is specifically installed in the card slot 4211. The insert plate 412 passes through the bar hole 38 and is located in the limit slot 54 to prevent the battery cover 50 from running in the opposite direction. Of course, the fastener 41 can also be of other structural forms.

[0051] In some embodiments, the fastener 41 is provided with an inclined portion 413 for abutting against the curved plate 52. When the battery cover 50 is not installed, the spring 43 is first in an extended state. When the battery cover 50 is slid upward from bottom to top relative to the middle frame 30 along the first direction X, the curved plate 52 will first abut against the inclined portion 413 of the fastener 41. When the battery cover 50 is continuously pushed, the curved plate 52 will squeeze the fastener 41 along the inclined portion 413, so that the fastener 41 and the button 42 are moved along the second direction X. The battery cover 50 moves to the right in direction Y and compresses the spring 43 until the battery cover 50 is in place. The arc plate 52 is offset from the fastener 41, and the button 42 and the fastener 41 are reset by the thrust of the spring 43, pushing the fastener 41 into the limit groove 54. The fastener 41 fastens the battery cover 50 to prevent the battery cover 50 from running in the opposite direction, and finally fixes the battery cover 50. Of course, the fastener 41 and the button 42 can also be moved to the right to run along the second direction Y together and compress the spring 43.

[0052] Please see further Figure 2 、 Figure 3 、 Figure 10 as well as Figure 12 In this embodiment, the door lock assembly 20 includes a lock body 21, an unlocking motor, a circuit board 22, a password disk and an interface board 23. The middle frame 30 is also penetrated by a through hole 324 connected to the accommodating groove 321. The interface board 23 is installed on the through hole 324 and is electrically connected to the lithium battery 10. The lock body 21, the unlocking motor, the circuit board 22 and the password disk are all fixed on the middle frame 30, and the unlocking motor, the password disk and the interface board 23 are all electrically connected to the circuit board 22.

[0053] In some embodiments, the lithium battery fixing structure further includes at least one gasket 80, which is sandwiched between the battery cover 50 and the lithium battery 10 to reduce the gap between the lithium battery 10 and the battery cover 50 to prevent the lithium battery 10 from loosening during use.

[0054] In some embodiments, the lithium battery 10 includes a battery body 11, a socket end 12 and a USB interface 13. The socket end 12 and the USB interface 13 are both connected to the battery body 11. The lithium battery 10 can be charged through the USB interface 13. The battery body 11 is electrically connected to the interface board 23 through the socket end 12.

[0055] The utility model also discloses an intelligent door lock, comprising the lithium battery fixing structure as described above.

[0056] The disassembly and assembly principles of the smart door lock are as follows:

[0057] When the lithium battery 10 needs to be installed, the lithium battery 10 is first installed in the receiving slot 321, and the lithium battery 10 is electrically connected to the interface board 23 on the middle frame 30. Then, the battery cover 50 is slid and pushed relative to the middle frame 30 along the first direction X. Before the battery cover 50 slides into place, the curved plate 52 in the battery cover 50 will first abut against the inclined portion 413 of the lever assembly 40. As the battery cover 50 is pushed, the curved plate 52 will push the fastener 41 and the button 42 along the inclined portion 413 to move rightward along the second direction Y and compress the spring 43. After the battery cover 50 is in place, the fastener 41 and the button 42 are returned to their original position together by the elastic force of the spring 43, and the fastener 41 is moved leftward to the limiting slot 54. The inserts 53 are respectively slid into the slots 31, and the positioning ribs 55 are respectively inserted into the corresponding positioning slots 361. The battery cover 50 covers the lithium battery 10 in the receiving slot 321.

[0058] When the lithium battery 10 needs to be removed, the shift block 422 is manually moved to the right along the second direction Y, and the fastener 41 exits the limit slot 54. The shift block 422 is pressed and kept stationary. Then the battery cover 50 is pushed downward relative to the middle frame 30, and each insert block 53 exits each slot 31 respectively. Each positioning protrusion 55 exits each positioning slot 361 respectively until the battery cover 50 is completely exited from the middle frame 30. Then release your hand and finally take the lithium battery 10 out of the receiving slot 321.

[0059] In summary, the middle frame 30 of the present invention is provided with a receiving groove 321 and at least two slots 31, the lithium battery 10 is installed in the receiving groove 321, the battery cover 50 includes a sliding cover 51, a curved plate 52 and at least two inserts 53, the curved plate 52 and the inserts 53 are both convexly arranged on the inner side of the sliding cover 51, the curved plate 52 and the sliding cover 51 are enclosed to form a laterally arranged limit groove 54, the middle frame 30 is slidably mounted with a lever assembly 40, compared with the traditional technology, an additional limit groove 54 and a lever assembly 40 are added, when the sliding cover 5 When the lithium battery 10 is slid along the first direction X to cover the accommodating slot 321, the insert blocks 53 are respectively inserted into the slots 31, and the lever assembly 40 is inserted into the limiting slot 54 along the second direction Y. When the door is closed due to wind or force, the lever assembly 40 and the limiting slot 54 cooperate to effectively prevent the battery cover 50 from moving in the opposite direction, so that the insert blocks 53 are always stuck in the slots 31, preventing the battery cover 50 from falling off the middle frame 30, thereby stably fixing the lithium battery 10 in the accommodating slot 321.

[0060] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A lithium battery fixing structure, characterized in that: include: Lithium batteries; Door lock assembly; A middle frame is provided with a receiving groove and at least two slots, each of the slots is respectively located on two sides outside the receiving groove along a first direction, the axis direction of each of the slots is the first direction, and the orientations of each of the slots are the same, the door lock assembly is installed on the middle frame, and the lithium battery is installed in the receiving groove and is electrically connected to the door lock assembly; A lever assembly is slidably mounted on the middle frame along a second direction; The battery cover includes a sliding cover, an arc-shaped plate and at least two plug-in blocks, wherein the arc-shaped plate and the plug-in blocks are both protruded from the inner side of the sliding cover, and the arc-shaped plate and the sliding cover are combined to form a laterally arranged limiting groove, and when the sliding cover slides along the first direction to cover the lithium battery in the accommodating groove, each of the plug-in blocks is respectively slidably inserted into each of the slots, and the lever assembly is slidably inserted into the limiting groove along the second direction, and the first direction is perpendicular to the second direction.

2. The lithium battery fixing structure according to claim 1, characterized in that: The middle frame includes a frame body, a first boss, a second boss and at least one boss, the accommodating groove is arranged on the frame body, the first boss and the second boss are both convexly arranged on the frame body and are respectively located on both sides outside the accommodating groove, the boss is arranged on the first boss, the connection between the boss and the first boss and the connection between the second boss and the frame body are both provided with the slot, and the door lock assembly and the lever assembly are both connected to the frame body.

3. The lithium battery fixing structure according to claim 2, characterized in that: The sliding cover includes a sealing plate, a first side plate and two second side plates, the first side plate and the second side plate are both protruding from the edge of one side of the sealing plate, the two ends of the first side plate are respectively connected to the two second side plates, the first side plate and the sealing plate are both protruding with at least one plug-in block, the arc plate is fixed on the sealing plate and connected to the first side plate, and the arc plate, the sealing plate and the first side plate together enclose the limiting groove.

4. The lithium battery fixing structure according to claim 3, characterized in that: The battery cover further comprises at least two positioning convex bones, each of which is protruded on the two second side plates; The middle frame also includes two oppositely arranged baffles, which are respectively protruded on both sides of the frame body along the second direction, and the accommodating groove is located between the two baffles. A side of the baffle away from the accommodating groove is provided with at least one U-shaped positioning groove, and the axial direction of the positioning groove is arranged along the third direction. Each of the positioning convex bones is respectively inserted into each of the positioning grooves, and the first direction, the second direction and the third direction are perpendicular to each other.

5. The lithium battery fixing structure according to claim 1, characterized in that: The lithium battery fixing structure also includes a cover plate, the lever assembly includes a fastener, a button and a spring, the middle frame is also provided with a storage groove, and a bar hole and a lever hole connecting the storage groove, the storage groove and the lever hole are staggered with the sliding cover, the spring is located in the storage groove, one end of the button is located in the storage groove and presses the spring against the inner wall of the storage groove, and the other end is located in the lever hole, one end of the fastener is located in the storage groove and connected to the button, and the other end passes through the bar hole and is inserted into the limit groove, the spring can push the fastener to run into the limit groove along the second direction, and the cover plate is installed on the middle frame and covers the storage groove.

6. The lithium battery fixing structure according to claim 5, characterized in that: The button includes a slider, a shift block and a support rod, the slider is provided with a slot corresponding to the strip hole, the shift block and the support rod are respectively protruded on two adjacent outer wall surfaces of the slider, the slider and the support rod are both located in the storage groove, the shift block is located in the shift hole, the spring is sleeved on the support rod and abuts against the inner wall of the storage groove, and the fastener is installed in the slot.

7. The lithium battery fixing structure according to claim 5, characterized in that: The fastener includes a buckle plate and an insert plate protruding from the buckle plate, the buckle plate is located in the storage groove and connected to the button, and the insert plate is located in the limiting groove after passing through the bar-shaped hole.

8. The lithium battery fixing structure according to claim 5, characterized in that: The fastener is provided with an inclined portion for abutting against the arc plate.

9. The lithium battery fixing structure according to claim 1, characterized in that: The door lock assembly includes a lock body, an unlocking motor, a circuit board, a code disk and an interface board. The middle frame is also penetrated by a through hole connected to the accommodating groove. The interface board is installed on the through hole and electrically connected to the lithium battery. The lock body, the unlocking motor, the circuit board and the code disk are all fixed on the middle frame, and the unlocking motor, the code disk and the interface board are all electrically connected to the circuit board.

10. A smart door lock, characterized in that: It comprises a lithium battery fixing structure as described in any one of claims 1 to 9.

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