Battery compartment for loading multiple batteries in same direction

Abstract

The invention discloses a battery compartment for loading multiple batteries in the same direction, which comprises a battery compartment assembly, a battery cover assembly and a locking assembly, and the battery cover assembly and the battery compartment assembly can be separately assembled; the battery compartment assembly and the product host can be separately assembled, and the bottom of the battery compartment assembly is fixedly connected with the product host through screws; a plurality of 18650 batteries are arranged in the battery compartment assembly in the same direction, the positive electrodes of the batteries are in contact with the positive electrode of the battery compartment assembly, and the negative electrodes of the batteries are in contact with the conductive spring of the battery cover assembly; the locking assembly is installed on the battery cover assembly and comprises a locking handle and a locking shaft connected with the locking handle, and the bottom of the locking shaft is in threaded fit with the embedded sleeve in the battery bin assembly. The battery compartment structure for loading the multiple 18650 batteries is simple in structure, is separated from a host, is simple and convenient in electrical wiring, has the characteristics of strong impact resistance, good sealing performance and easiness in light weight and modularization, and aims to improve the processing and assembling manufacturability and maintainability of the battery compartment structure for loading the multiple 18650 batteries.

Description

Technical Field

[0001] This invention relates to the field of battery compartment technology, and more particularly to a battery compartment for loading multiple batteries in the same direction. Background Technology

[0002] With the continuous development of intelligent recognition technology, military optoelectronic products are rapidly moving towards intelligence. Hardware modules such as visible light imaging modules, low-light imaging modules, infrared imaging modules, and laser ranging modules all integrate AI architecture, enabling target acquisition, recognition, and automatic ranging functions. However, the powerful computing capabilities of AI units result in high power consumption. To meet the requirements of product usage time, it is necessary to adopt advanced low-power processes and low-power architecture designs for hardware modules, and to equip them with a sufficient number of batteries for power supply.

[0003] A military-grade intelligent integrated optoelectronic product requires multiple 18650 batteries for power. Military products have stringent requirements for the sealing and corrosion resistance of the battery compartment, but existing common battery compartment designs have several drawbacks: Pain Point 1: Common military battery compartment structures are mostly cylindrical with small openings and deep cavities. The battery compartment structure cannot be separated from the main unit, which not only makes the main unit structure complex and unfavorable for lightweight design, but also requires the machining of various wiring holes to power the main unit, making the manufacturing process more complicated.

[0004] Pain Point 2: Multi-cell batteries are often installed in a reverse orientation, which makes it very easy for the positive and negative terminals of the batteries to be installed in reverse, thereby damaging the battery and its electrical life. At the same time, under strong impact, the positive and negative terminals of each battery installed in the reverse orientation are not in the same state, which can easily lead to damage to the positive and negative terminals of the battery, thus affecting the normal use of the product. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention aims to provide a battery compartment for loading multiple 18650 batteries in the same direction. This battery compartment has a simple structure, is separated from the main unit, and has convenient electrical wiring. It features strong impact resistance, good sealing, easy lightweighting, and modularity, and is designed to improve the processing, assembly, and maintainability of the battery compartment structure for loading multiple 18650 batteries.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a battery compartment for multiple batteries mounted in the same direction, comprising a battery compartment assembly, a battery cover assembly, and a locking assembly. The battery cover assembly and the battery compartment assembly are separable and assembleable; the battery compartment assembly and the main unit are separable and assembleable, with the bottom of the battery compartment assembly fixedly connected to the main unit by screws; multiple 18650 batteries are mounted in the same direction inside the battery compartment assembly, with the positive terminal of the battery in contact with the positive electrode of the battery compartment assembly, and the negative terminal of the battery in contact with the conductive spring of the battery cover assembly; the locking assembly is mounted on the battery cover assembly, and the locking assembly includes a locking handle and a locking shaft connected to the locking handle, with the bottom of the locking shaft threadedly engaging with an insert sleeve in the battery compartment assembly; by rotating the locking assembly, the battery cover assembly is moved axially, thereby locking or disengaging the battery cover assembly from the battery compartment assembly.

[0007] Furthermore, the locking assembly also includes a locking shaft seal ring, a pin, and a retaining ring. The locking handle and the locking shaft are connected together by the pin, which passes through the locking shaft and is threadedly connected and fixed to the locking handle. The locking shaft seal ring is installed in the sealing groove of the locking shaft to seal the locking assembly and the battery cover assembly. The retaining ring is stuck on the locking shaft to restrict the axial movement of the locking assembly. The locking assembly also includes an adjusting shim for adjusting the locking position of the locking handle after the battery cover assembly is locked.

[0008] The battery compartment assembly includes a battery compartment body, a battery compartment sealing ring, a positive circuit board, a positive electrode, and spring pins. The battery compartment body is fixedly connected to the main unit of the product using M2 screws. The battery compartment sealing ring is located on the outside of the opening end of the battery compartment body. From the inside out, the bottom of the battery compartment body is fixed with screws to the positive circuit board and a positive electrode pad. Multiple positive electrodes are welded to the positive circuit board and are connected to the positive electrode of the 18650 battery. Multiple spring pins are fixed inside the battery compartment body and connected to the positive circuit board via wires. An insert sleeve is installed inside the battery compartment body near the opening end. The outer wall of the insert sleeve is fixed to the battery compartment body by threads, and the inner wall has threads that fit the bottom of the locking shaft. The battery compartment assembly also includes a battery sealing ring for static sealing between the battery compartment assembly and the main unit of the product.

[0009] The battery compartment is made of PEEK composite material; the positive electrode pad is made of hard rubber; and the insert is made of titanium alloy.

[0010] The battery cover assembly includes a battery cover. Inside the battery cover, a battery cover circuit board and a small electrode pad are sequentially mounted via countersunk screws. A conductive spring and a small electrode are welded to the battery cover circuit board, and both the conductive spring and the small electrode extend outside the small electrode pad. The conductive spring is in contact with its corresponding small electrode. After the battery cover assembly is rotated 80° for installation, the correspondence between the conductive spring and the small electrode remains unchanged. When the battery cover assembly is locked, it compresses the battery compartment sealing ring of the battery compartment assembly, thereby achieving a seal between the battery cover assembly and the battery compartment assembly.

[0011] After the battery cover assembly is locked, multiple probes and conductive contacts on the battery compartment assembly make contact with the small electrodes of the battery cover assembly to conduct electricity.

[0012] In this invention, multiple 18650 batteries are installed in the same direction with their positive terminals facing inward. The positive terminals of the batteries are in contact with the positive electrode of the battery compartment assembly, and the negative terminals of the batteries are in contact with the conductive spring of the battery cover assembly. This installation method is consistent with the battery installation method in traditional electrical appliances, which can reduce the probability of incorrect battery polarity installation.

[0013] The battery compartment is made of PEEK composite material, which has high mechanical strength, light weight, excellent resistance to high and low temperatures, oil resistance and corrosion resistance, and good insulation properties.

[0014] Multiple M2 screws tightly fix the positive electrode pad and positive electrode circuit board to the battery compartment. The positive electrode pad is made of hard rubber material, which has the function of buffering and shock absorption.

[0015] The insert is made of titanium alloy and is fixed to the battery compartment by threads, which can enhance the locking force with the locking handle and avoid stripping.

[0016] The positive circuit board is installed at the bottom of the battery compartment and has reverse connection protection, over-discharge protection and power reverse flow protection functions; the battery sealing ring is used for static sealing between the battery compartment assembly and the main unit.

[0017] The battery cover circuit board and the small electrode pad are mounted on the battery cover by multiple countersunk screws. The pad is made of hard rubber material, which has the function of buffering and shock absorption.

[0018] There are no specific directional requirements for the installation of the battery cover assembly. Thanks to the circuit design of the printed circuit board of the battery cover, the conductive spring and the small electrode maintain a specific correspondence. Even if the battery cover assembly is rotated 80° during installation, this correspondence will not change. Attached Figure Description

[0019] The structure and technical features of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention in conjunction with the main unit of the product.

[0022] Figure 3 This is an overall schematic diagram of the battery cover assembly and battery compartment assembly in the detached state in this invention.

[0023] Figure 4This is an overall schematic diagram of the battery cover assembly and battery compartment assembly in the locked state in this invention.

[0024] Figure 5 This is a schematic diagram of the battery compartment assembly in this invention.

[0025] Figure 6 This is a schematic diagram showing the unfolded structure of the battery cover assembly in this invention.

[0026] Figure 7 This is a schematic diagram of the battery cover assembly in this invention.

[0027] Figure 8 This is a schematic diagram of the printed circuit board of the battery cover circuit board in this invention.

[0028] Figure 9 This is a schematic diagram showing the unfolded structure of the locking component in this invention.

[0029] Figure 10 This is a schematic diagram of the structure and fit of the locking component in this invention.

[0030] Figure 11 This is a schematic diagram of the electrical wiring of the present invention.

[0031] In the diagram: 1-Battery compartment assembly, 2-Battery cover assembly, 3-Locking assembly, 4-Main unit, 10-Battery compartment sealing ring, 11-Battery compartment body, 12-Battery sealing ring, 13-Adjusting shim, 14-Inlay sleeve, 15-Positive electrode, 16-Positive electrode pad, 17-Positive electrode circuit board, 18-M2 screw, 19-Probe, 20-18650 battery, 12-Battery cover, 22-Battery cover circuit board, 23-Small electrode pad, 24-Small electrode, 25-Conductive spring, 26-Counterhead screw, 31-Locking handle, 32-Pin, 33-Locking shaft, 34-Locking shaft sealing ring, 35-Retaining ring. Detailed Implementation

[0032] Referring to the accompanying drawings, one embodiment of the present invention discloses a battery compartment for unidirectional loading of eight batteries, including a battery compartment assembly 1, a battery cover assembly 2, and a locking assembly 3. The battery cover assembly 2 and the battery compartment assembly are separable and detachable. The battery compartment assembly and the main unit 4 are separable and detachable, with the bottom of the battery compartment assembly fixedly connected to the main unit 4 by screws. Eight 8650 batteries 20 are installed unidirectionally inside the battery compartment assembly 1, with the positive terminal of the battery in contact with the positive electrode 5 of the battery compartment assembly 1, and the negative terminal of the battery in contact with the conductive spring 25 of the battery cover assembly 2. The locking assembly 3 is mounted on the battery cover assembly 1, and includes a locking handle 31 and a locking shaft 33 connected to the locking handle 31. The bottom of the locking shaft 33 is threadedly engaged with the insert sleeve 14 in the battery compartment assembly 1. By rotating the locking assembly 3, the battery cover assembly 2 is moved axially, thereby locking or disengaging the battery cover assembly 2 from the battery compartment assembly 1.

[0033] The locking assembly 3 also includes a locking shaft seal ring 34, a pin 32, and a retaining ring 35. The locking handle and the locking shaft are connected together by the pin, which passes through the locking shaft and is threadedly connected and fixed to the locking handle. The locking shaft seal ring 34 is installed in the sealing groove of the locking shaft 33 to seal the locking assembly 3 and the battery cover assembly 2. The retaining ring 35 is stuck on the locking shaft 33 to restrict the axial movement of the locking assembly 3. The locking assembly 3 also includes an adjusting shim 13 to adjust the locking position of the locking handle 3 after the battery cover assembly 2 is locked.

[0034] The battery compartment assembly includes a battery compartment body 11, a battery compartment sealing ring 10, a positive circuit board 17, a positive electrode 15, and spring pins 19. The battery compartment body is fixedly connected to the main unit 4 via M2 screws 8. The battery compartment sealing ring 10 is located on the outside of the opening end of the battery compartment body. From the inside to the outside, the bottom of the battery compartment body 11 is fixed with screws to the positive circuit board 17 and the positive electrode pad 16. Eight positive electrodes 15 are welded to the positive circuit board 17 and are connected to the positive electrode of the 8650 battery 20. Eight spring pins 9 are fixed inside the battery compartment body and are connected to the positive circuit board 7 via wires. An insert sleeve 4 is located on the inside of the battery compartment body 11 near the opening end. The outer wall of the insert sleeve 4 is fixed to the battery compartment body 11 by threads, and the inner wall is provided with threads that engage with the bottom of the locking shaft 33. The battery compartment assembly also includes a battery sealing ring 2 for static sealing between the battery compartment assembly and the main unit 4.

[0035] The battery compartment is made of PEEK composite material; the positive electrode pad 6 is made of hard rubber; and the insert sleeve 4 is made of titanium alloy.

[0036] The battery cover assembly 2 includes a battery cover 2. Inside the battery cover 2, a battery cover circuit board 22 and a small electrode pad 23 are sequentially mounted via four countersunk screws 26. A conductive spring 25 and a small electrode 24 are welded to the battery cover circuit board 22, and both the conductive spring 25 and the small electrode 24 extend outside the small electrode pad 23. The conductive spring 25 is in communication with its corresponding small electrode 24. After the battery cover assembly 2 is rotated 80° for installation, the correspondence between the conductive spring 25 and the small electrode 24 remains unchanged. When the battery cover assembly 2 is locked, it compresses the battery compartment sealing ring 10 of the battery compartment assembly, thereby achieving a seal between the battery cover assembly 2 and the battery compartment assembly.

[0037] After the battery cover assembly 12 is locked, the conductive contacts of the eight probes 19 on the battery compartment assembly make contact with the small electrodes 24 of the battery cover assembly 12 to conduct electricity.

[0038] The assembly process of the battery compartment with 8 batteries loaded in the same direction provided in this invention is as follows: Battery compartment assembly: First, solder the positive electrode 5 onto the positive circuit board 7. Then, fix the positive pad 6 and the positive circuit board 7 onto the battery compartment body in sequence using eight M2 screws 8. Fix the spring pin 9 at the designated position on the battery compartment body and connect it to the positive circuit board 7 through a wire. Fix the insert sleeve 4 onto the battery compartment body with threads, and install the battery compartment sealing ring 0 and the battery sealing ring 2 to complete the assembly of the battery compartment assembly.

[0039] Battery cover assembly assembly: The conductive spring 25 and the small electrode 24 are welded to the battery cover circuit board 22. The pad 23 and the battery cover circuit board 22 are fixed to the battery cover 2 by four countersunk screws 26, thus completing the assembly of the battery cover assembly 2.

[0040] Locking assembly assembly: Install the locking shaft sealing ring 34 in the sealing groove of the locking shaft 33, connect the locking handle 3 to the locking shaft 33 through the pin 32 and fix it with threads, and finally install the open retaining ring 35 for limiting, thus completing the assembly of the locking assembly 3.

[0041] Overall assembly: Install the locking assembly 3 on the battery cover assembly 2, ensuring that the retaining ring 35 is engaged with the locking shaft 33 to restrict its axial movement; place eight 8650 batteries 20 with their positive terminals facing inward into the battery cavity of the battery compartment assembly, so that the positive terminals of the batteries are in contact with the positive electrode 5; by rotating the locking assembly 3, the locking shaft 33 is threaded into the insert sleeve 4, causing the battery cover assembly 2 to move axially, compressing the battery compartment sealing ring 0, and achieving a locking seal between the battery cover assembly 2 and the battery compartment assembly. At this time, the conductive contacts of the eight probes 9 are in contact with the small electrode 24 and conduction occurs; finally, fix the bottom of the battery compartment assembly to the main unit 4 with screws to complete the overall assembly.

[0042] The battery compartment of this invention, in which eight batteries are loaded in the same direction, allows the battery cover assembly 2 to be rotated 80° for installation without needing to distinguish the installation direction, making assembly convenient. The positive circuit board 7 has multiple protection functions, which can effectively protect the batteries and electrical components. The battery compartment body is made of PEEK composite material, the insert sleeve 4 is made of titanium alloy material, and it is combined with a hard rubber pad, which makes the battery compartment have excellent overall mechanical properties, light weight, good cushioning and shock absorption effect, and strong resistance to strong impacts. The setting of each sealing component ensures the airtightness of the battery compartment, which meets the requirements of military products. The battery compartment assembly and the main unit 4 can be separated, which simplifies the main unit structure and processing technology, and facilitates maintenance and battery replacement.

Claims

1. A battery compartment for multiple batteries unidirectionally mounted, comprising a battery compartment assembly (1), a battery cover assembly (2), and a locking assembly (3), wherein the battery cover assembly (2) and the battery compartment assembly (1) are detachable and assembleable; the battery compartment assembly (1) and the main unit (4) are detachable and assembleable; the bottom of the battery compartment assembly (1) is fixedly connected to the main unit (4) by screws; multiple 18650 batteries (20) are unidirectionally mounted inside the battery compartment assembly, and the positive terminals of the batteries are in contact with the positive electrode (5) of the battery compartment assembly (1). The negative terminal of the battery contacts the conductive spring (25) of the battery cover assembly (2); the locking assembly (3) is installed on the battery cover assembly, and the locking assembly (3) includes a locking handle (31) and a locking shaft (33) connected to the locking handle (31). The bottom of the locking shaft (33) is threadedly engaged with the insert sleeve (4) in the battery compartment assembly (1). By rotating the locking assembly (3), the battery cover assembly (2) is driven to move axially, thereby locking or disengaging the battery cover assembly (2) from the battery compartment assembly (1).

2. The battery compartment for multiple batteries loaded in the same direction according to claim 1, characterized in that: The locking assembly (3) also includes a locking shaft seal ring (34), a pin (32) and a retaining ring (35). The locking handle and the locking shaft are connected together by the pin. The pin passes through the locking shaft and is threadedly connected and fixed to the locking handle. The locking shaft seal ring (34) is installed in the sealing groove of the locking shaft (33) to seal the locking assembly (3) and the battery cover assembly (2). The retaining ring (35) is stuck on the locking shaft (33) to restrict the axial movement of the locking assembly (3). The locking assembly (3) also includes an adjusting shim (13) to adjust the locking position of the locking handle (3) after the battery cover assembly (2) is locked.

3. The battery compartment for multiple batteries loaded in the same direction according to claim 1, characterized in that: The battery compartment assembly (1) includes a battery compartment body (11), a battery compartment sealing ring (0), a positive electrode circuit board (7), a positive electrode (5), and a spring pin (9); the battery compartment body (11) is fixedly connected to the product host by an M2 screw (8); the battery compartment sealing ring (10) is located on the outside of the opening end of the battery compartment body; the bottom of the battery compartment body is fixed with a positive electrode circuit board (7) and a positive electrode pad (6) in sequence by screws from the inside to the outside, and multiple positive electrodes (5) are welded to the positive electrode circuit board (7) and connected to the positive electrode of the 18650 battery (20); multiple spring pins (9) are fixed inside the battery compartment body (11) and connected to the positive electrode circuit board (7) by wires; the insert sleeve (4) is located on the inside of the battery compartment body near the opening end, the outer wall of the insert sleeve (4) is fixed to the battery compartment body (11) by a thread, and the inner wall is provided with a thread for locking the bottom of the shaft; the battery compartment assembly (11) also includes a battery sealing ring (12) for static sealing between the battery compartment assembly (11) and the product host (4).

4. The battery compartment for multiple batteries loaded in the same direction according to claim 3, characterized in that: The battery compartment (11) is made of PEEK composite material; the positive electrode pad (6) is made of hard rubber material; and the insert sleeve (4) is made of titanium alloy material.

5. The battery compartment with eight batteries loaded in the same direction according to claim 3, characterized in that: The battery cover assembly (2) includes a battery cover (21). A battery cover circuit board (22) and a small electrode pad (23) are sequentially mounted on the inside of the battery cover (21) by multiple countersunk screws (26). A conductive spring (25) and a small electrode (24) are welded to the battery cover circuit board (22), and both the conductive spring (25) and the small electrode (24) extend outside the small electrode pad (23). The conductive spring (25) is connected to its corresponding small electrode (24). After the battery cover assembly (2) is rotated 80° for installation, the correspondence between the conductive spring (25) and the small electrode (24) remains unchanged. When the battery cover assembly (2) is locked, it will compress the battery compartment sealing ring (10) of the battery compartment assembly (1) to achieve a seal between the battery cover assembly (2) and the battery compartment assembly (1).

6. A battery compartment for occupantly loading eight batteries according to claim 5, characterized in that, After the battery cover assembly (12) is locked, the conductive contacts of the multiple probes (19) on the battery compartment assembly (1) make contact with the small electrode (24) of the battery cover assembly (12) and conduct electricity.

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