Battery box and intelligent door lock

By designing a battery box that can hold eight dry cell batteries, adopting a two-parallel, four-series structure and short-circuit-preventing conductive terminal components, the problems of low power capacity and short circuit in smart door locks have been solved, resulting in increased power and extended battery life, while reducing production costs.

CN224020908UActive Publication Date: 2026-03-20SHENZHEN FENDA SMART HOME CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Current smart door locks can only hold four dry cell batteries at a time, resulting in low power capacity and a tendency to short-circuit and malfunction if the batteries are installed incorrectly.

Method used

Design a battery box that can hold eight dry cell batteries. It adopts a two-layer stacked structure with two parallel and four series batteries. The conductive terminal components include double negative springs, a first bipolar spring, and a positive copper buckle to prevent short circuits caused by reverse installation of the dry cell batteries. The wire assembly connects the battery polarity and includes anti-static cloth and fasteners to ensure the battery box structure is integrated and easy to disassemble.

Benefits of technology

It effectively improves the battery life and power consumption of smart door locks, prevents short circuits, reduces production costs, and is suitable for widespread adoption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a battery box and an intelligent door lock, the battery box comprises a box body, a conductive end assembly and a wire assembly, and the box body is provided with an accommodating cavity; the conductive end assembly comprises a double-cathode spring, two first bipolar springs which are arranged at an interval up and down, two first anode copper buckles which are arranged at an interval up and down and four second bipolar springs which are arranged side by side up and down, and the double-cathode spring, the two first bipolar springs and the two first anode copper buckles are all mounted on the inner wall of one side of the accommodating cavity; the four second bipolar springs are all installed on the inner wall of the other side of the containing cavity, the two negative electrodes of the double-negative-electrode spring and the negative electrode of the first bipolar spring are all arranged corresponding to the positive electrodes of the corresponding second bipolar springs, and the positive electrode of the first bipolar spring and the first positive electrode copper buckle are all arranged corresponding to the negative electrodes of the corresponding second bipolar springs. The wire assembly comprises a negative wire and at least one positive wire, the negative wire is connected with the double-negative spring, and the two first positive copper buckles are connected with the corresponding positive wires respectively.
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Description

Technical Field

[0001] This utility model belongs to the field of door lock structure technology, and in particular relates to a battery box and a smart door lock. Background Technology

[0002] Currently, smart locks refer to locks that are improved upon traditional mechanical locks, offering greater intelligence and convenience in terms of user security, identification, and management. Smart locks are the locking actuators in access control systems. Unlike traditional mechanical locks, smart locks are composite locks that combine security, convenience, and advanced technology. In modern security systems, the application of smart locks is becoming increasingly widespread. In the design and production of smart locks, in addition to intelligence, the power supply is also crucial; if the power supply system malfunctions, even the most advanced lock will not function properly.

[0003] However, existing smart locks can only hold four dry cell batteries at a time. The power capacity of smart locks is low, and if the dry cell batteries inside the smart lock are installed backwards, it is easy to cause a short circuit, which will prevent the smart lock from working properly. Utility Model Content

[0004] The purpose of this utility model is to provide a battery box and a smart door lock, which aims to solve the technical problem that existing smart door locks can only be filled with four dry batteries at a time, resulting in low power capacity.

[0005] This utility model is implemented as follows: a battery box, comprising:

[0006] The box body has a receiving cavity;

[0007] The conductive terminal assembly includes two negative springs, two first bipolar springs arranged vertically at intervals, two first positive copper clips arranged vertically at intervals, and four second bipolar springs arranged in two parallel vertical rows. The two negative springs, the two first bipolar springs, and the two first positive copper clips are all mounted on the inner wall of one side of the receiving cavity. The four second bipolar springs are all mounted on the inner wall of the other side of the receiving cavity. The two negative poles of the two negative springs are arranged vertically, and the first bipolar springs are located between the two negative springs and the first positive copper clips. Between the buckles, the two negative poles of the double negative spring and the negative pole of the first bipolar spring are respectively set to correspond to the positive pole of the corresponding second bipolar spring. The positive pole of the first bipolar spring and the first positive copper buckle are respectively set to correspond to the negative pole of the corresponding second bipolar spring. The two negative poles of the double negative spring, the negative pole of the first bipolar spring and the negative pole of the second bipolar spring are respectively used to connect to the negative pole of the corresponding dry cell. The positive pole of the first bipolar spring, the first positive copper buckle and the positive pole of the second bipolar spring are respectively used to connect to the positive pole of the corresponding dry cell.

[0008] The wire assembly comprises a negative wire and at least one positive wire, the negative wire is connected with the double negative spring, and the two first positive copper buckles are respectively connected with the corresponding positive wire.

[0009] Optionally, the double negative spring comprises two first negative spring seats connected with each other, the two first negative spring seats are arranged in an upper-lower side-by-side manner and are both mounted on the inner side wall of the accommodating cavity, the two first negative spring seats are respectively arranged corresponding to the positive pole of the corresponding second double spring, and the negative wire is connected with one of the first negative spring seats.

[0010] Optionally, the first double spring comprises a second negative spring seat and a second positive copper buckle connected with the second negative spring seat, the second negative spring seat and the second positive copper buckle are both transversely mounted on the inner side wall of the accommodating cavity, the second positive copper buckle is located between the first negative spring seat and the second negative spring seat, and the first negative spring seat and the second negative spring seat are both arranged corresponding to the positive pole of the corresponding second double spring, and the first positive copper buckle and the second positive copper buckle are both arranged corresponding to the negative pole of the corresponding second double spring.

[0011] Optionally, the second double spring comprises a third negative spring seat and a third positive copper buckle connected with the third negative spring, the third negative spring seat and the third positive copper buckle are both transversely mounted on the inner side wall of the accommodating cavity, and the first negative spring seat and the second negative spring seat are both arranged corresponding to the third positive copper buckle, and the first positive copper buckle and the second positive copper buckle are both arranged corresponding to the third negative spring seat.

[0012] Optionally, the box body comprises a box seat and a plurality of baffles for preventing the dry batteries from being short-circuited, the accommodating cavity is arranged on the box seat, the plurality of baffles are respectively protruded on the two sides of the inner wall of the accommodating cavity, and the two outer sides of the first positive copper buckle, the second positive copper buckle and the third positive copper buckle are both protruded with two baffles, when the dry batteries are reversely installed, the dry batteries abut against the corresponding two baffles, and the negative pole of the dry battery is arranged in a spaced manner between the corresponding first positive copper buckle or second positive copper buckle or third positive copper buckle.

[0013] Optionally, the box body further comprises a plurality of partitions for separating the dry batteries, and the plurality of partitions are respectively protruded on the two sides of the inner wall of the accommodating cavity.

[0014] Optionally, the box body is further provided with four strip-shaped holes for inserting fingers to push the dry batteries out of the accommodating cavity, and the four strip-shaped holes are all in communication with the accommodating cavity.

[0015] Optionally, the wire assembly further comprises a socket, the socket is provided with at least two electric sockets, the negative electrode wire and the positive electrode wire are electrically connected with the corresponding electric sockets respectively.

[0016] Optionally, the battery box further comprises a fastener and an anti-static cloth, the box body is further provided with a threaded hole on the outer side wall and a socket penetrating from the inner side wall of the accommodating cavity to the outer side wall of the box body, the anti-static cloth is provided with a perforation, the fastener is connected with the threaded hole through the perforation, and the anti-static cloth is inserted into the accommodating cavity through the socket.

[0017] The utility model also provides an intelligent door lock which comprises the battery box.

[0018] The battery box can accommodate eight dry batteries at one time, and the eight dry batteries can be installed in the accommodating cavity of the battery box in a two-by-four series upper-lower stacked structure, thereby ingeniously saving layout space, effectively improving the power and endurance time of the intelligent door lock, and being integrally structured, easy to disassemble, low in production cost, high in efficiency and suitable for wide promotion. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view of the dry batteries mounted in the battery box according to an embodiment of the utility model;

[0020] Figure 2 is an exploded view of Figure 1 ;

[0021] Figure 3 is a perspective view of the battery box according to an embodiment of the utility model; Figure 1 ;

[0022] Figure 4 is a perspective view of the battery box according to an embodiment of the utility model; Figure 2 ;

[0023] Figure 5 is an exploded view of Figure 4 ;

[0024] Figure 6 is a perspective view of the box seat according to an embodiment of the utility model;

[0025] Figure 7 is a perspective view of the dry battery according to an embodiment of the utility model.

[0026] REFERENCE SIGNS:

[0027] 10, box body; 11, containing cavity; 12, box seat; 13, baffle; 14, partition; 15, strip-shaped hole; 16, threaded hole; 17, socket; 20, conductive end assembly; 21, double negative spring; 211, first negative spring seat; 22, first double pole spring; 221, second negative spring seat; 222, second positive copper buckle; 23, first positive copper buckle; 24, second double pole spring; 241, third negative spring seat; 242, third positive copper buckle; 30, wire assembly; 31, negative wire; 32, positive wire; 33, socket; 331, electrical socket; 40, dry battery; 41, battery body; 42, positive terminal; 43, negative terminal; 50, fastener; 60, anti-static cloth; 61, perforation. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0029] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or can have a middle element. When an element is referred to as "connected to" another element, it can be directly connected to another element or can have a middle element.

[0030] It should also be noted that the left, right, up, down and other orientation terms in the present embodiment are only relative concepts or are referenced to the normal use state of the product, and should not be considered as limiting.

[0031] Please refer to Figures 1 to 7 As shown in the figure, the utility model discloses a battery box, mainly applied to intelligent door lock, battery box includes box body 10, conductive end assembly 20 and wire assembly 30, box body 10 has containing cavity 11.

[0032] The conductive end assembly 20 comprises a double negative spring 21, two first double springs 22 arranged in an up-down interval state, two first positive copper buckles 23 arranged in an up-down interval state, and four second double springs 24 arranged in an up-down two-side-by-side state. The double negative spring 21, the two first double springs 22, and the two first positive copper buckles 23 are all installed on the inner wall of one side of the accommodating cavity 11 by riveting. The four second double springs 24 are all installed on the inner wall of the other side of the accommodating cavity 11 by riveting. The double negative spring 21 has two negative poles. The first double spring 22 and the second double spring 24 each have one positive pole and one negative pole. The first positive copper buckle 23 has one positive pole. The double negative spring 21, the first double spring 22, the second double spring 24, and the first positive copper buckle 23 are arranged in an interval state. The positive copper buckle can also be called a copper eyelet.

[0033] The two negative poles of the double negative spring 21 are arranged in an up-down state. The first double spring 22 is located between the double negative spring 21 and the first positive copper buckle 23. The two negative poles of the double negative spring 21 and the negative pole of the first double spring 22 are each arranged in correspondence with the positive pole of the corresponding second double spring 24. The positive pole of the first double spring 22 and the first positive copper buckle 23 are each arranged in correspondence with the negative pole of the corresponding second double spring 24. The two negative poles of the double negative spring 21, the negative pole of the first double spring 22, and the negative pole of the second double spring 24 are respectively used to connect with the negative pole of the corresponding dry battery 40. The positive pole of the first double spring 22, the first positive copper buckle 23, and the positive pole of the second double spring 24 are respectively used to connect with the positive pole of the corresponding dry battery 40. The battery box can be filled with eight dry batteries 40 at a time. The eight dry batteries 40 can be installed in the accommodating cavity 11 of the battery box in a two-layer stacked structure in a series-parallel manner of two in four in series. The polarity of the adjacent two dry batteries 40 in the same layer of four dry batteries 40 is opposite.

[0034] The wire assembly 30 comprises a negative wire 31 and at least one positive wire 32. The negative wire 31 is connected with the double negative spring 21. The two first positive copper buckles 23 are respectively connected with the corresponding positive wire 32, so as to supply power to the intelligent door lock.

[0035] In this embodiment, the double negative spring 21 comprises two connected first negative spring seats 211. The first negative spring seat 211 can serve as the negative pole of the double negative spring 21. The two first negative spring seats 211 are arranged in an up-down side-by-side state and are both installed on the inner side wall of the accommodating cavity 11. The negative wire 31 is connected with one of the first negative spring seats 211. The two first negative spring seats 211 are each arranged in correspondence with the positive pole of the corresponding second double spring 24.

[0036] The first bipolar spring 22 comprises a second negative spring seat 221 and a second positive copper buckle 222 connected with the second negative spring seat 221, the second negative spring seat 221 and the second positive copper buckle 222 are both transversely installed on the inner side wall of the accommodating cavity 11, the second positive copper buckle 222 and the second negative spring seat 221 are the positive and negative poles of the first bipolar spring 22 respectively, the second positive copper buckle 222 is located between the first negative spring seat 211 and the second negative spring seat 221, and each first negative spring seat 211 and each second negative spring seat 221 are correspondingly arranged with the positive pole of the corresponding second bipolar spring 24, each first positive copper buckle 23 and each second positive copper buckle 222 are correspondingly arranged with the negative pole of the corresponding second bipolar spring 24, so as to facilitate the installation of the corresponding dry battery 40.

[0037] The second bipolar spring 24 comprises a third negative spring seat 241 and a third positive copper buckle 242 connected with the third negative spring seat 241, the third negative spring seat 241 and the third positive copper buckle 242 are both transversely installed on the inner side wall of the accommodating cavity 11, and each first negative spring seat 211 and each second negative spring seat 221 are correspondingly arranged with the corresponding third positive copper buckle 242, each first positive copper buckle 23 and each second positive copper buckle 222 are correspondingly arranged with the corresponding third negative spring seat 241, so as to facilitate the installation of the corresponding dry battery 40, and the shape of each negative spring seat is a spring in the shape of a circular truncated cone.

[0038] In the embodiment, the box body 10 comprises a box seat 12 and a plurality of baffles 13 for preventing the dry battery 40 from being short-circuited, the accommodating cavity 11 is arranged on the box seat 12, and the plurality of baffles 13 are respectively protruded on both sides of the inner wall of the accommodating cavity 11, and both outer sides of the first positive copper buckle 23, the second positive copper buckle 222 and the third positive copper buckle 242 are protruded with two baffles 13, the number and shape of the baffles 13 can be set according to actual needs, the height of the baffle 13 is greater than the height of the first positive copper buckle 23, the second positive copper buckle 222 and the third positive copper buckle 242, when the dry battery 40 is not reversely installed, the dry battery 40 will not abut against the baffle 13, when the dry battery 40 is reversely installed, the negative pole of the dry battery 40 abuts against the corresponding two baffles 13, and the negative pole of the dry battery 40 is spaced apart from the corresponding first positive copper buckle 23 or the second positive copper buckle 222 or the third positive copper buckle 242, so that the dry battery 40 cannot be conducted, thereby preventing short circuit.

[0039] The dry battery 40 comprises a battery body 41, a positive electrode end head 42 and a negative electrode end head 43, the positive electrode end head 42 and the negative electrode end head 43 are arranged at two sides of the battery body 41 respectively, when the dry battery 40 is not reversely arranged, the battery body 41 is arranged in a spaced mode with the baffle 13, the positive electrode end head 42 abuts against the corresponding first positive electrode copper buckle 23 or the second positive electrode copper buckle 222 or the third positive electrode copper buckle 242, and the positive electrode end head 42 can realize conduction, when the dry battery 40 is reversely arranged, the battery body 41 abuts against the corresponding two baffles 13, the negative electrode end head 43 is arranged in a spaced mode with the corresponding first positive electrode copper buckle 23 or the second positive electrode copper buckle 222 or the third positive electrode copper buckle 242, and the circuit cannot be conducted, so that short circuit can be avoided.

[0040] The box body 10 further comprises a plurality of partition plates 14 for separating the dry batteries 40, the plurality of partition plates 14 are respectively arranged on two sides of the inner wall of the accommodating cavity 11, the baffle 13 is arranged between the corresponding two partition plates 14, the height of the baffle 13 is less than the height of the partition plate 14, and the partition plate 14 will not interfere with the baffle 13.

[0041] The box body 10 is further provided with four strip-shaped holes 15, the four strip-shaped holes 15 are all communicated with the accommodating cavity 11, the four strip-shaped holes 15 are arranged side by side on the bottom wall of the accommodating cavity 11, and each strip-shaped hole 15 corresponds to one dry battery 40, so that fingers can be inserted into the accommodating cavity 11 through the strip-shaped hole 15 to push the dry battery 40 out of the accommodating cavity 11, and the later disassembly and maintenance are facilitated.

[0042] In the embodiment, the wire assembly 30 further comprises a socket 33, the socket 33 is provided with at least two electric plug holes 331, the negative electrode wire 31 and the positive electrode wire 32 are respectively electrically connected with the corresponding electric plug holes 331, the number of the electric plug holes 331 is three, and the number of the positive electrode wire 32 is two, the socket 33 can be connected with the PCB in the intelligent door lock through the electric plug holes 331 thereon.

[0043] The battery box further comprises a fastener 50 and an anti-static cloth 60, the box body 10 is further provided with a threaded hole 16 on the outer side wall and a socket 17 penetrating through the inner side wall of the accommodating cavity 11 to the outer side wall of the box body 10, the anti-static cloth 60 is provided with a perforation 61, the fastener 50 is connected with the threaded hole 16 through the perforation 61, and the anti-static cloth 60 is inserted into the accommodating cavity 11 after penetrating through the socket 17, each dry battery 40 on the lower layer presses the anti-static cloth 60 on the bottom wall of the accommodating cavity 11, the anti-static cloth 60 can have the anti-static effect on the dry battery 40, and the fastener 50 is a screw.

[0044] The utility model further discloses an intelligent door lock, comprising the battery box as above-mentioned, the appearance size of battery box is consistent with the appearance size of lithium battery, can directly replace, thereby make intelligent door lock can be compatible with lithium battery and dry battery 40.

[0045] The battery box installation method includes the following steps:

[0046] Step S101: Install the conductive terminal assembly 20. First, install the double negative spring 21, the two first bipolar springs 22, and the two first positive copper buckles 23 on one side of the inner wall of the receiving cavity 11 of the box body 10. Install the four second bipolar springs 24 on the other side of the inner wall of the receiving cavity 11. The two negative poles of the double negative spring 21 are arranged vertically. The first bipolar spring 22 is located between the double negative spring 21 and the first positive copper buckle 23. The two first bipolar springs 22 are arranged vertically with a gap between them. The two first positive copper buckles 23 are arranged vertically with a gap between them. The four second bipolar springs 24 are arranged in two parallel vertical rows. The two negative poles of the double negative spring 21 and the negative poles of the first bipolar spring 22 are all arranged to correspond to the positive poles of the corresponding second bipolar springs 24. The positive poles of the first bipolar springs 22 and the first positive copper buckles 23 are all arranged to correspond to the negative poles of the corresponding second bipolar springs 24.

[0047] Step S102: Install the antistatic cloth 60, pass the fastener 50 through the through hole 61 on the antistatic cloth 60 and connect it to the threaded hole 16 on the box body 10, and the antistatic cloth 60 passes through the insertion port 17 on the box body 10 and extends into the receiving cavity 11.

[0048] Step S103: Install the wire assembly 30. One end of the negative wire 31 is connected to the double negative spring 21, and the other end is connected to the corresponding electrical socket 331 of the socket 33. The two first positive copper buckles 23 are respectively connected to one end of the corresponding positive wire 32, and the other end of the positive wire 32 is connected to the corresponding electrical socket 331.

[0049] Step S104: Install dry cell batteries 40. Eight dry cell batteries 40 can be installed in the receiving cavity 11 of the battery box in a two-layer stacked structure. The polarities of two adjacent dry cell batteries 40 in the same layer are opposite, and each dry cell battery 40 in the lower layer presses the antistatic cloth 60 against the bottom wall of the receiving cavity 11.

[0050] In summary, the battery box of this utility model can hold eight dry cell batteries 40 at a time. The eight dry cell batteries 40 can be installed in the receiving cavity 11 of the battery box in a series-parallel stacked structure, which cleverly saves layout space, effectively improves the power and battery life of the smart door lock, and the entire battery box has an integrated structure, is easy to disassemble, has low manufacturing cost, high efficiency, and is suitable for widespread promotion.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery box, characterized in that... ,include: The box body has a receiving cavity; The conductive terminal assembly includes two negative springs, two first bipolar springs arranged vertically at intervals, two first positive copper clips arranged vertically at intervals, and four second bipolar springs arranged in two parallel vertical rows. The two negative springs, the two first bipolar springs, and the two first positive copper clips are all mounted on the inner wall of one side of the receiving cavity. The four second bipolar springs are all mounted on the inner wall of the other side of the receiving cavity. The two negative poles of the two negative springs are arranged vertically, and the first bipolar springs are located between the two negative springs and the first positive copper clips. Between the buckles, the two negative poles of the double negative spring and the negative pole of the first bipolar spring are respectively set to correspond to the positive pole of the corresponding second bipolar spring. The positive pole of the first bipolar spring and the first positive copper buckle are respectively set to correspond to the negative pole of the corresponding second bipolar spring. The two negative poles of the double negative spring, the negative pole of the first bipolar spring and the negative pole of the second bipolar spring are respectively used to connect to the negative pole of the corresponding dry cell. The positive pole of the first bipolar spring, the first positive copper buckle and the positive pole of the second bipolar spring are respectively used to connect to the positive pole of the corresponding dry cell. The wire assembly includes a negative wire and at least one positive wire, the negative wire being connected to the double negative spring, and the two first positive copper clips being respectively connected to the corresponding positive wires.

2. The battery box as described in claim 1, characterized in that, The dual negative spring includes two connected first negative spring seats, which are arranged side by side and mounted on the inner wall of the receiving cavity. Each of the two first negative spring seats is corresponding to the positive pole of the corresponding second bipolar spring. The negative wire is connected to one of the first negative spring seats.

3. The battery box as described in claim 2, characterized in that, The first bipolar spring includes a second negative spring seat and a second positive copper buckle connected to the second negative spring seat. The second negative spring seat and the second positive copper buckle are both horizontally mounted on the inner wall of the receiving cavity. The second positive copper buckle is located between the first negative spring seat and the second negative spring seat. The first negative spring seat and the second negative spring seat are both corresponding to the positive pole of the corresponding second bipolar spring. The first positive copper buckle and the second positive copper buckle are both corresponding to the negative pole of the corresponding second bipolar spring.

4. The battery box as described in claim 3, characterized in that, The second bipolar spring includes a third negative spring seat and a third positive copper buckle connected to the third negative spring. The third negative spring seat and the third positive copper buckle are both horizontally mounted on the inner side wall of the receiving cavity. The first negative spring seat and the second negative spring seat are respectively arranged corresponding to the corresponding third positive copper buckle, and the first positive copper buckle and the second positive copper buckle are respectively arranged corresponding to the corresponding third negative spring seat.

5. The battery box as described in claim 4, characterized in that, The housing includes a base and multiple baffles for preventing short circuits of the dry cell battery. The receiving cavity is disposed on the base, and the multiple baffles are respectively protruding on both sides of the inner wall of the receiving cavity. Two baffles are protruding on the outer sides of the first positive copper buckle, the second positive copper buckle, and the third positive copper buckle. When the dry cell battery is installed in reverse, the dry cell battery abuts against the corresponding two baffles. The negative terminal of the dry cell battery is spaced apart from the corresponding first positive copper buckle, the second positive copper buckle, or the third positive copper buckle.

6. The battery box as described in claim 5, characterized in that, The housing also includes a plurality of partitions for separating each of the dry cell batteries, and the plurality of partitions are respectively protruding on both sides of the inner wall of the receiving cavity.

7. The battery box as described in claim 1, characterized in that, The box body is also provided with four strip-shaped holes for inserting fingers to push the dry cell battery out of the receiving cavity, and all four strip-shaped holes are in communication with the receiving cavity.

8. The battery box as described in claim 1, characterized in that, The wire assembly also includes a socket with at least two electrical sockets, and the negative wire and the positive wire are electrically connected to the corresponding electrical sockets.

9. The battery box as described in claim 1, characterized in that, The battery box also includes fasteners and antistatic cloth. The box body also has a threaded hole on its outer side wall and an insertion port that extends from the inner side wall of the receiving cavity to the outer side wall of the box body. The antistatic cloth has a through hole. The fastener passes through the through hole and connects to the threaded hole. The antistatic cloth passes through the insertion port and extends into the receiving cavity.

10. A smart door lock, characterized in that, Includes the battery box as described in any one of claims 1-9.