Battery compartment structure with locking self-positioning function

Abstract

The utility model discloses a battery compartment structure with locking self -positioning function, including battery compartment subassembly, battery cover subassembly and locking subassembly, and battery compartment subassembly is separated assembly between product casing, and battery cover subassembly is separated assembly between battery compartment subassembly, and locking subassembly is installed on battery cover subassembly, is used for realizing the locking or of battery cover subassembly and battery compartment subassembly, locking subassembly includes locking handle, locking axle, locking axle sealing washer, pin shaft and open baffle ring, locking handle and locking axle are fixed through pin shaft thread cooperation, and pin shaft and locking axle are small gap cooperation, locking axle sealing washer installs in the sealing groove of locking axle, and open baffle ring is stuck below locking axle. The utility model can realize simple structure and casing separation, electrical wiring is simple, and the effect of resisting strong impact, good sealing, easy lightweight and modularization is realized, solves the inside wiring difficult, complex structure, processing and assembly process cumbersome, inconvenient maintenance problem when battery series installation.

Description

Technical Field

[0001] This utility model relates to the field of battery compartment technology, and in particular to a battery compartment structure with locking and self-positioning function, which is suitable for military optoelectronic products with high requirements for sealing, impact resistance and lightweight, and can be compatible with the installation and power supply of multiple 18650 batteries. Background Technology

[0002] As the functions of military optoelectronic products become increasingly sophisticated, multiple batteries (such as 18650 batteries) are often required for power supply to meet continuous operational needs. Current military product battery compartments present the following problems: Complex structural design: The battery compartments are mostly cylindrical with small openings and deep cavities. The multi-compartment structure also results in complex shell features, making it difficult to achieve lightweight design.

[0003] Installation and sealing challenges: Battery covers are mostly flip-top or detachable, requiring additional positioning mechanisms to ensure correct electrode connection; at the same time, to meet military sealing and corrosion resistance requirements, existing structures are difficult to process and assemble.

[0004] Risk of reversed positive and negative terminals: In order to optimize the wiring, multi-cell series compartments often adopt a reverse loading structure, which can easily cause the positive and negative terminals of the batteries to be reversed, thus damaging the battery and its electrical life.

[0005] Poor impact resistance: Under strong impact, the positive and negative electrodes of each battery cell are subjected to different impact forces due to the reverse loading structure, which can easily lead to electrode damage and affect the normal use of the product.

[0006] Therefore, there is an urgent need to design a battery compartment structure that is simple in structure, has good sealing performance, strong impact resistance, and is easy to assemble, in order to solve the above-mentioned technical problems. Utility Model Content

[0007] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a battery compartment structure with locking and self-positioning function, which can achieve the effects of simple structure and separation from the shell, convenient electrical wiring, strong impact resistance, good sealing performance, easy lightweighting and modularization, and solve the problems of difficult internal wiring, complex structure, cumbersome processing and assembly process, and inconvenient maintenance when batteries are installed in series.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a battery compartment structure with locking self-positioning function, including a battery compartment assembly, a battery cover assembly, and a locking assembly. The battery compartment assembly is separately assembled from the product housing, and the battery cover assembly is separately assembled from the battery compartment assembly. The locking assembly is installed on the battery cover assembly to lock or release the battery cover assembly from the battery compartment assembly. The locking assembly includes a locking handle, a locking shaft, a locking shaft sealing ring, a pin, and an open retaining ring. The locking handle and the locking shaft are fixed by a pin threaded fit, and the pin and the locking shaft have a small clearance fit. The locking shaft sealing ring is installed in the sealing groove of the locking shaft. The open retaining ring is stuck below the locking shaft to restrict the axial movement of the locking assembly.

[0009] Furthermore, the mating surface between the battery cover assembly and the battery compartment assembly is a 60-degree triangular pyramidal inclined surface structure.

[0010] The battery compartment assembly includes a battery compartment body connected to the product housing by screws; a battery compartment sealing ring is provided on the outer side of the opening end of the battery compartment body, and a gasket and a first circuit board are respectively provided on the inner side of the battery compartment body near the other end. A first spring passing through the gasket is welded to the surface of the first circuit board, and the first spring is connected to the battery electrode for conduction; a spring pin is provided on the inner wall of the battery compartment body, and the spring pin is connected to the first circuit board through a wire; an insert sleeve is provided on the inner side of the battery compartment body near the opening end, and the inner wall of the insert sleeve is provided with a thread that mates with the bottom of the locking shaft. Rotating the locking handle can drive the locking shaft to rotate, so as to lock or disengage the battery cover assembly and the battery compartment assembly.

[0011] The battery compartment is designed with a cavity for installing three 18650 batteries in the same direction. Each cavity is equipped with a spring and a first spring. The battery compartment is made of PEEK composite material. The gasket is made of hard rubber. The insert is made of titanium alloy and is threaded to the battery compartment.

[0012] The battery cover assembly includes a battery cover with multiple positioning posts on its inner side. A second circuit board and a liner are sequentially installed on the inner side of the battery cover via the positioning posts. Electrodes and a second spring are welded to the surface of the second circuit board. The second spring is in communication with the corresponding electrode. The liner has slots to expose the second spring and the electrode. The liner is made of hard rubber. The contact parts between the battery cover, the second circuit board, and the liner are fixed together by applying adhesive. The electrodes in the battery cover assembly contact the spring pins in the battery compartment assembly to form a current conduction path. When the battery cover assembly is locked, a double sealing structure is formed by compressing the battery compartment sealing ring and the locking shaft sealing ring of the battery compartment assembly.

[0013] In terms of overall assembly, the battery compartment assembly and the product housing are fixedly connected by multiple M2 screws, enabling detachable assembly and facilitating individual maintenance or replacement of the battery compartment assembly. The battery cover assembly and the battery compartment assembly are detachable, allowing for the installation of three 18650 batteries in the same direction without needing to distinguish the positive and negative polarity, thus avoiding the risk of reverse installation. The locking assembly is installed on the battery cover assembly, and through its cooperation with the battery compartment assembly, it enables the battery cover assembly to be locked and unlocked, while ensuring sealing performance.

[0014] The battery compartment assembly of this utility model uses PEEK composite material for its battery compartment body, which has advantages such as high mechanical strength, light weight, resistance to high and low temperatures, oil resistance, corrosion resistance, and good insulation, meeting the requirements of military environments. Multiple M2 screws are used to tightly fix the gasket and circuit board to the battery compartment body. The gasket is made of hard rubber, which can buffer and absorb shock, improving impact resistance. The insert is made of titanium alloy and is fixed to the battery compartment body by threads, which can enhance the locking force with the locking assembly and avoid stripping. Three springs are welded to the circuit board and connected to the battery electrodes for conductivity. Three spring pins are fixed to the battery compartment body and connected to the circuit board through wires, forming a complete current transmission path.

[0015] In this utility model, the spring and electrode of the battery cover assembly are welded to the circuit board. The spring is connected to the corresponding electrode to ensure stable current transmission. The circuit board and the battery cover liner are mounted on the battery cover through three positioning posts on the battery cover. The contact parts of the components are fixed by applying glue to improve structural stability. The battery cover liner is made of hard rubber material, which can buffer impact, protect internal components, and further enhance the overall impact resistance.

[0016] The mating surfaces of the battery cover assembly and the battery compartment assembly of this utility model adopt a 60-degree triangular pyramidal inclined surface structure. This structure has three major advantages: First, the battery cover assembly does not need to be precisely placed in a specific position when locking, simplifying the operation; second, it can automatically align and uniformly compress the surrounding sealing ring to ensure locking and sealing effects; and third, it makes the overall structure compact, which is conducive to lightweight design.

[0017] In this invention, the locking handle and locking shaft of the locking assembly are connected by a pin. The pin passes through the locking shaft and is threadedly engaged with the locking handle for fixation. The pin and locking shaft have a small clearance fit to ensure connection stability. The locking handle can be unfolded or retracted around the pin. When unfolded, it can drive the locking shaft to rotate. Through the threaded engagement between the bottom of the locking shaft and the insert sleeve in the battery compartment assembly, the battery cover assembly and the battery compartment assembly are locked or disengaged. The locking shaft sealing ring is installed in the sealing groove of the locking shaft to ensure the seal between the locking assembly and the battery cover assembly. The opening retaining ring is stuck on the locking shaft to restrict the axial movement of the locking assembly and prevent the assembly from falling off.

[0018] In terms of sealing, during the locking process of the battery cover assembly, the battery compartment sealing ring in the battery compartment assembly is compressed. Combined with the sealing effect of the locking shaft sealing ring, a double sealing structure is formed to ensure the overall sealing of the battery compartment and meet the military requirements for corrosion resistance and waterproofing.

[0019] In terms of current conduction, the three spring pins (elastic bodies) in the battery compartment assembly contact the electrodes in the battery cover assembly to form a current conduction path, ensuring that the battery supplies stable power to the electrical system.

[0020] The advantages of this utility model are: it adopts a modular design, the battery compartment assembly and the shell can be separated, the batteries can be installed in the same direction without distinguishing between positive and negative terminals, reducing the positioning mechanism, reducing the difficulty of processing and assembly, and meeting the requirements of simplification in structure.

[0021] The PEEK battery compartment and titanium alloy insert enhance strength and corrosion resistance; the double-sealed structure meets military sealing requirements; the hard rubber liner and spring structure improve impact resistance, extend battery and electrical system life, and meet performance enhancement requirements.

[0022] The locking handle is foldable, easy to operate, and facilitates quick battery replacement; its lightweight design meets the portability requirements of military products while reducing maintenance costs and satisfying convenience requirements. Attached Figure Description

[0023] The structure and technical features of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 yes Figure 1 A schematic diagram of the assembly structure with the product housing.

[0026] Figure 3 This is a cross-sectional view of the present invention in the locked state of the battery cover assembly.

[0027] Figure 4 This is a cross-sectional view of the present invention with the battery cover assembly detached.

[0028] Figure 5 This is a structural schematic diagram of the battery compartment assembly in this utility model.

[0029] Figure 6 This is a schematic diagram of the battery cover assembly in this utility model.

[0030] Figure 7 This is a cross-sectional schematic diagram of the locking component in this utility model.

[0031] Figure 8 This is a schematic diagram showing the unfolded structure of the locking component in this utility model.

[0032] Figure 9 This is a schematic diagram of the electrical wiring in the battery compartment assembly of this utility model.

[0033] Appendix Figure 1-9 In the diagram, 1. Product housing; 2. Battery compartment assembly; 3. Battery cover assembly; 4. Locking assembly; 5. Screw; 11. Battery compartment sealing ring; 12. Battery compartment body; 13. Spring pin; 14. Insert sleeve; 15. 18650 battery; 16. First spring; 17. Gasket; 18. First circuit board; 21. Battery cover; 22. Second circuit board; 23. Electrode; 24. Liner plate; 25. Second spring; 26. Positioning pin; 31. Locking handle; 32. Pin; 33. Locking shaft; 34. Locking shaft sealing ring; 35. Opening retaining ring. Detailed Implementation

[0034] See appendix Figure 1-9 This is one embodiment of the present invention, disclosing a battery compartment structure with locking self-positioning function, including a battery compartment assembly 2, a battery cover assembly 3, and a locking assembly 4. The battery compartment assembly 2 is separately assembled from the product housing 1, and the battery cover assembly 3 is separately assembled from the battery compartment assembly 2. The mating surface between the battery cover assembly 3 and the battery compartment assembly 2 is a 60-degree triangular pyramidal inclined surface structure. The locking assembly 4 is installed on the battery cover assembly 3 to lock or disengage the battery cover assembly 3 from the battery compartment assembly 2. The locking assembly 4 includes a locking handle 31, a locking shaft 33, a locking shaft sealing ring 34, a pin 32, and an open retaining ring 35. The locking handle 31 and the locking shaft 33 are fixed by a threaded engagement of the pin 32, and the pin 32 and the locking shaft 33 have a small clearance fit. The locking shaft sealing ring 34 is installed in the sealing groove of the locking shaft 33. The open retaining ring 35 is stuck below the locking shaft 33 to restrict the axial movement of the locking assembly 4.

[0035] The battery compartment assembly 2 includes a battery compartment body 12 connected to the product housing 1 by screws 5; a battery compartment sealing ring 11 is provided on the outer side of the opening end of the battery compartment body 12, and a gasket 17 and a first circuit board 18 are respectively provided on the inner side of the battery compartment body 12 near the other end. A first spring 16 passing through the gasket 17 is welded on the surface of the first circuit board 18, and the first spring 16 is connected and conductive to the battery electrode 23; a spring pin 13 is provided on the inner wall of the battery compartment body 12, and the spring pin 13 is connected to the first circuit board 18 by a wire; an insert sleeve 14 is provided on the inner side of the battery compartment body 12 near the opening end, and the inner wall of the insert sleeve 14 is provided with a thread that mates with the bottom of the locking shaft 33. Rotating the locking handle 31 can drive the locking shaft 33 to rotate, so as to lock or disengage the battery cover assembly 3 from the battery compartment assembly 2.

[0036] The battery compartment 12 has a battery cavity inside that can accommodate three 18650 batteries 15 installed in the same direction. Each battery cavity is equipped with a spring pin 13 and a first spring 16. The battery compartment 12 is made of PEEK composite material. The gasket 17 is made of hard rubber. The insert sleeve 14 is made of titanium alloy and is threaded to the outside of the insert sleeve 14.

[0037] The battery cover assembly 3 includes a battery cover 21. Multiple positioning posts 26 are provided on the inner side of the battery cover 21. A second circuit board 22 and a liner 24 are sequentially installed on the inner side of the battery cover 21 via the positioning posts 26. Electrodes 23 and a second spring 25 are welded to the surface of the second circuit board 22. The second spring 25 is in communication with the corresponding electrode 23. The liner 24 has slots that expose the second spring 25 and the electrode 23. The liner 24 is made of hard rubber. The contact points between the battery cover 21, the second circuit board 22, and the liner 24 are fixed together by applying adhesive. The electrode 23 in the battery cover assembly 3 contacts the spring pin 13 in the battery compartment assembly 2, forming a current conduction path. When the battery cover assembly 3 is locked, a double sealing structure is formed by compressing the battery compartment sealing ring 11 and the locking shaft sealing ring 34 of the battery compartment assembly 2.

[0038] The assembly process of this utility model during use is as follows: Battery compartment assembly 2 assembly: The insert sleeve 14 is fixed to the PEEK battery compartment body 12 by threads; the first spring 16 is welded to the first circuit board 18, and the spring pin 13 is fixed to the battery compartment body 12 and then connected to the first circuit board 18 by wires; the gasket 17 and the first circuit board 18 are fixed to the battery compartment body 12 in sequence with 8 M2 screws 5 to complete the assembly of battery compartment assembly 2.

[0039] Battery cover assembly 3 assembly: The second spring 25 is welded to the electrode 23 on the second circuit board 22; the second circuit board 22 and the hard rubber battery cover 21 liner 24 are installed on the battery cover 21 through the three positioning posts 26 on the battery cover 21, and the contact parts are glued to fix them, thus completing the assembly of battery cover assembly 3.

[0040] Assembly of locking assembly 4: Install the locking shaft sealing ring 34 in the sealing groove of the locking shaft 33; connect and fix the locking handle 31 to the locking shaft 33 with the pin 32, and then lock the open retaining ring 35 on the locking shaft 33 to restrict axial movement, thus completing the assembly of locking assembly 4; then install the entire locking assembly 4 on the battery cover assembly 3.

[0041] Overall assembly: Place three 18650 batteries 15 into the cavity of the battery compartment assembly 2 in the same direction; cover the battery cover assembly 3 onto the battery compartment assembly 2, unfold the locking handle 31, and rotate the locking shaft 33 so that the locking shaft 33 engages with the insert sleeve 14 of the battery compartment assembly 2 until the battery cover assembly 3 and the 60-degree triangular pyramidal inclined surface of the battery compartment assembly 2 are in contact, completing the locking and sealing; finally, use six M2 screws 5 to fix the battery compartment assembly 2 to the product housing 1 to complete the overall assembly.

[0042] When this utility model is in operation, the battery electrode 23 is conducted to the first circuit board 18 through the first spring 16 in the battery compartment assembly 2, and then contacts the electrode 23 of the battery cover assembly 3 through the spring pin 13 to form a current path and supply power to the electrical system.

[0043] When maintaining or replacing the battery, retract the locking handle 31, rotate the locking shaft 33 in the opposite direction to disengage the battery cover assembly 3 from the battery compartment assembly 2, remove the old battery, insert the new battery in the same direction, and lock it again. The operation is simple and requires no professional tools.

[0044] In terms of impact resistance and sealing: the hard rubber gasket 17 and the battery cover 21 liner buffer external impacts to prevent damage to the battery and electrodes 23; the battery compartment sealing ring 11 and the locking shaft sealing ring 34 form a double seal to prevent external moisture and impurities from entering, ensuring reliability in military environments.

Claims

1. A battery compartment structure with locking and self-positioning function, characterized in that: The device includes a battery compartment assembly, a battery cover assembly, and a locking assembly. The battery compartment assembly and the battery cover assembly are assembled separately. The locking assembly is mounted on the battery cover assembly and is used to lock or release the battery cover assembly from the battery compartment assembly. The locking assembly includes a locking handle, a locking shaft, a locking shaft seal, a pin, and an open retaining ring. The locking handle and the locking shaft are fixed by a pin threaded fit, and the pin and the locking shaft have a small clearance fit. The locking shaft seal is installed in the sealing groove of the locking shaft. The open retaining ring is stuck under the locking shaft to restrict the axial movement of the locking assembly.

2. The battery compartment structure with locking self-positioning function according to claim 1, characterized in that: The mating surface between the battery cover assembly and the battery compartment assembly is a 60-degree triangular pyramidal inclined surface structure.

3. The battery compartment structure with locking self-positioning function according to claim 1, characterized in that: The battery compartment assembly includes a battery compartment body connected to the product housing by screws; a battery compartment sealing ring is provided on the outer side of the opening end of the battery compartment body, and a gasket and a first circuit board are respectively provided on the inner side of the battery compartment body near the other end. A first spring passing through the gasket is welded to the surface of the first circuit board, and the first spring is connected to the battery electrode for conduction; a spring pin is provided on the inner wall of the battery compartment body, and the spring pin is connected to the first circuit board through a wire; an insert sleeve is provided on the inner side of the battery compartment body near the opening end, and the inner wall of the insert sleeve is provided with a thread that mates with the bottom of the locking shaft. Rotating the locking handle can drive the locking shaft to rotate, so as to lock or disengage the battery cover assembly and the battery compartment assembly.

4. The battery compartment structure with locking self-positioning function according to claim 3, characterized in that: The battery compartment is designed with a cavity for installing three 18650 batteries in the same direction. Each cavity is equipped with a spring and a first spring. The battery compartment is made of PEEK composite material. The gasket is made of hard rubber. The insert is made of titanium alloy and is threaded to the battery compartment.

5. The battery compartment structure with locking self-positioning function according to claim 3, characterized in that: The battery cover assembly includes a battery cover with multiple positioning posts on its inner side. A second circuit board and a liner are sequentially installed on the inner side of the battery cover via the positioning posts. Electrodes and a second spring are welded to the surface of the second circuit board. The second spring is in communication with the corresponding electrode. The liner has slots to expose the second spring and the electrode. The liner is made of hard rubber. The contact parts between the battery cover, the second circuit board, and the liner are fixed together by applying adhesive. The electrodes in the battery cover assembly contact the spring pins in the battery compartment assembly to form a current conduction path. When the battery cover assembly is locked, a double sealing structure is formed by compressing the battery compartment sealing ring and the locking shaft sealing ring of the battery compartment assembly.

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