Building block type battery module structure and combination device

Abstract

The utility model discloses a building block type battery module structure and combination device, building block type battery module structure includes battery module building block unit, battery module building block unit includes the module body with installation cavity, at least two convex parts, at least two recesses and be used for accommodating the accommodation cylinder of power supply, the convex part includes the first containing groove of accommodation electromagnet, the recess includes the second containing groove of accommodation electromagnet, the electromagnet in first containing groove is connected with the power supply anode in accommodation cylinder through copper foil, the electromagnet in second containing groove is connected with the power supply cathode in accommodation cylinder through copper foil, the outer diameter of convex part is equal with the inner diameter of recess. The utility model can be connected through the mechanical interlocking mode between independent type's battery module building block unit, and further realizes the series connection (step -up) or parallel connection (expansion) of battery module, can flexibly adjust the voltage and capacity of power supply, to satisfy different demands.

Description

Technical Field

[0001] This utility model relates to the field of circuit teaching aids technology, and in particular to a modular battery module structure and assembly device. Background Technology

[0002] With the vigorous development of science and technology education and innovation practice, the drawbacks of traditional circuit teaching aids and power supply solutions are becoming increasingly apparent, seriously hindering the efficient advancement of related fields.

[0003] Traditional circuit teaching aids rely on a fixed power source, "hiding" abstract concepts such as voltage and current in invisible internal mechanisms. Students can only deduce and imagine the process of change through theoretical formulas, which limits their intuitive understanding of voltage and current changes and makes it difficult for them to form intuitive cognition.

[0004] In addition, makers often encounter difficulties in the power compatibility stage during prototype development. The tedious operations such as welding and modifying battery boxes not only consume a lot of time and energy, but may also cause project progress to be hindered due to operational errors, making it difficult to achieve the goal of rapid iterative innovation.

[0005] Currently, battery products on the market have fixed capacity and voltage. Users have to repeatedly purchase dedicated power supplies to adapt to different devices, which not only increases the economic burden but also causes environmental pollution problems due to the use of a large number of disposable batteries. Moreover, the existing power module interfaces are fixed and lack flexibility. In fields such as the Internet of Things and robotics, which have extremely high requirements for flexibility and response speed, it is impossible to meet the diverse and personalized power needs of devices in a timely manner.

[0006] Relying on a fixed power supply not only limits students' intuitive understanding of voltage and current changes but also requires significant time for power supply adaptation (such as soldering or modifying battery boxes) during prototype development, thus extending the development cycle. Furthermore, existing power modules have several limitations: First, fixed battery capacity and voltage force users to repeatedly purchase dedicated power supplies for different devices, increasing costs, wasting resources, and causing environmental pollution. Second, existing power modules rely on fixed interfaces, lacking flexibility and failing to meet the needs of rapidly iterating fields such as the Internet of Things and robotics. Utility Model Content

[0007] This utility model provides a modular battery module structure and assembly device to solve the technical problems of many limitations existing in power modules.

[0008] In view of the above technical problems, this utility model provides a modular battery module structure, including a battery module modular unit. The battery module modular unit includes a module body with a mounting cavity, at least two protrusions disposed at the end of the module body away from the opening end of the mounting cavity, at least two recesses detachably mounted in the mounting cavity, and a receiving cylinder installed at the center of the mounting cavity for accommodating power.

[0009] Each of the protrusions includes a first receiving groove for accommodating an electromagnet, and each of the recesses includes a second receiving groove for accommodating an electromagnet. The electromagnet in the first receiving groove is connected to the positive terminal of the power supply inside the receiving cylinder through a copper foil, and the electromagnet in the second receiving groove is connected to the negative terminal of the power supply inside the receiving cylinder through a copper foil. The outer diameter of the protrusion is equal to the inner diameter of the recess.

[0010] Optionally, the number of both the protrusions and the recesses is set to four, with the central axes of each protrusion and each recess coinciding; the four recesses are evenly spaced around the receiving cylinder.

[0011] Optionally, a wire-passing hole is provided on the contact surface between the module body and the protrusion.

[0012] Optionally, the thickness of the protrusion is 0.25-0.35 mm; the height of the protrusion is 3-5 mm.

[0013] Optionally, it further includes a first connector, one end of which is fixedly connected to the outer wall of the recess, and the other end of which is detachably connected to the inner wall of the mounting cavity.

[0014] Optionally, it also includes an L-shaped flange, which extends into the recess and the receiving cylinder respectively, and the electromagnet in the second receiving groove is connected to the negative terminal of the power supply in the receiving cylinder through copper foil and along the L-shaped flange.

[0015] Optionally, it also includes a second connector, the end of which is detachably connected to the outer wall of the mounting cavity, and the end of which is close to the accommodating cylinder extends into the accommodating cylinder, providing a circuit installation path for the electromagnet in the first receiving groove to be positively connected to the power supply in the accommodating cylinder through copper foil.

[0016] Optionally, the thickness of the receiving cylinder is 0.15-0.2 mm.

[0017] This utility model also provides a modular battery module assembly device, including multiple modular battery module structures as described above, wherein two modular battery module structures are connected in series or in parallel through the insertion and engagement of the protrusion and the recess.

[0018] In this invention, the independent battery module building blocks are designed in a block-like form. Users can flexibly connect battery modules in series (boost voltage) or in parallel (expand capacity) by inserting the protrusion of one unit into the recess of another unit, thereby adjusting the voltage and capacity of the power supply according to different circuit requirements. Simultaneously, the electromagnet in the first receiving slot of the protrusion and the electromagnet in the second receiving slot of the recess are magnetically attracted, further enhancing the connection stability between the two battery module building blocks connected in parallel or series.

[0019] In the field of education, this invention allows students to operate the series and parallel connections of battery modules firsthand, witnessing the changes in voltage and current as the connection method changes. It transforms abstract circuit theory into vivid and intuitive experimental phenomena, perfectly aligning with the core trend of STEM education and effectively stimulating students' learning interest and creativity. For makers and developers, the plug-and-play nature and flexible adjustment capabilities of this device greatly simplify the power adaptation process, allowing them to focus more on the development of core functions, significantly shortening the development cycle and accelerating the process from idea to reality.

[0020] In terms of power supply, this utility model uses a button battery as its base and employs a clever circuit design to support series boost and parallel expansion, easily covering the power needs of 99% of low-power devices and achieving "one source for multiple uses," saving users significant costs. Furthermore, the modular design allows for quick replacement of individual damaged battery modules, avoiding the waste of resources associated with scrapping the entire device. It is also compatible with rechargeable batteries (such as the LIR2032), further reducing the use of disposable batteries and contributing to environmental protection. By abandoning traditional fixed interfaces, this device adopts a universal and expandable interface (protruding and recessed) design, seamlessly adapting to emerging devices in rapidly iterating fields such as the Internet of Things and robotics, providing continuous power support for technological innovation and development, and is expected to become a significant force driving change in related fields. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the modular battery module in one embodiment of this utility model;

[0023] Figure 2This is a top view of a modular battery module structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the overall structure of the modular battery module in another embodiment of the present invention;

[0025] Figure 4 This is a top view of the modular battery module structure in another embodiment of the present invention.

[0026] The reference numerals in the accompanying drawings are as follows:

[0027] 10-Battery module building block unit, 11-Mounting cavity, 12-Module body, 20-Protrusion, 21-First receiving groove, 30-Recess, 31-Second receiving groove, 40-Accommodating cylinder, 50-Wire hole, 60-First connector, 70-L-shaped overlap, 80-Second connector. Detailed Implementation

[0028] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] like Figures 1 to 4As shown, an embodiment of this utility model provides a modular battery module structure; it includes a modular battery module unit 10, wherein the modular battery module unit 10 includes a module body 12 having a mounting cavity 11, at least two protrusions 20 disposed at the end of the module body 12 away from the opening end of the mounting cavity 11, at least two recesses 30 detachably mounted in the mounting cavity 11, and a receiving cylinder 40 installed at the center of the mounting cavity 11 for accommodating power; each of the protrusions 20 includes a first receiving groove 21 for accommodating an electromagnet, and each of the recesses 30 includes a second receiving groove 31 for accommodating an electromagnet, wherein the electromagnet in the first receiving groove 21 is connected to the positive terminal of the power supply in the receiving cylinder 40 through a copper foil, and the electromagnet in the second receiving groove 31 is connected to the negative terminal of the power supply in the receiving cylinder 40 through a copper foil; the outer diameter of the protrusion 20 is equal to the inner diameter of the recess 30. The depth of the first receiving groove 21 of the protrusion 20 is adapted to the height of the electromagnet, and the second receiving groove 31 of the recess 30 is adapted to the height of the electromagnet. Furthermore, the protrusions 20 of different battery module building blocks 10 can be inserted into the recesses 30 of another battery module building block 10 to achieve splicing and connection of different battery module building blocks 10.

[0032] In this invention, the independent battery module building block unit 10 is designed in a building block-like form. Users can flexibly connect battery modules in series (boost voltage) or in parallel (expand capacity) by inserting the protrusion 20 of one unit into the recess 30 of another unit, thereby adjusting the voltage and capacity of the power supply according to different circuit requirements. At the same time, the electromagnet in the first receiving groove 21 of the protrusion 20 and the electromagnet in the second receiving groove 31 of the recess 30 are magnetically attracted to each other, further enhancing the connection stability between the two battery module building block units 10 connected in parallel or in series.

[0033] In one embodiment, such as Figures 1 to 4 As shown, the number of protrusions 20 and recesses 30 is set to four, with the central axes of each protrusion 20 and each recess 30 coinciding; the four recesses 30 are evenly spaced around the receiving cylinder 40. Understandably, when the battery module building blocks 10 are connected in series or parallel, the consistency and uniform distribution of the protrusions 20 and recesses 30 at their centers of gravity can achieve a more uniform and symmetrical connection, thereby improving the stability and reliability of the entire battery module. The number of protrusions 20 and recesses 30 can be set according to requirements. Specifically, it can be comprehensively considered based on various factors such as the connection requirements, size and shape of the battery module, application scenarios, cost and manufacturing processes, electromagnet installation and connection, user needs and usage habits, safety and reliability, standardization and compatibility, future scalability, and environmental factors.

[0034] In one embodiment, such as Figures 1 to 2 As shown, a wire-passing hole 50 is provided on the contact surface between the module body 12 and the protrusion 20. Understandably, the wire-passing hole 50 is used for copper foil to pass through, so that the electromagnet in the first receiving groove 21 can be connected to the positive terminal of the power supply in the receiving cylinder 40 through the copper foil. This eliminates the need for complex winding or additional connecting parts, making the connection between the battery module building blocks 10 more flexible, and allowing users to quickly replace or adjust the modules as needed.

[0035] In one embodiment, such as Figures 1 to 2 As shown, the thickness of the protrusion 20 is 0.48mm-0.52mm; the height of the protrusion 20 is 3mm-5mm. Understandably, the thickness and height of the protrusion 20 can be set according to requirements. A suitable thickness and height ensure that the protrusion 20 provides sufficient mechanical strength and stability when engaging with the recesses 30 of other battery module building blocks 10, while maintaining structural compactness without increasing the overall volume due to excessive size. Secondly, the protrusion 20 within a suitable size range can achieve a good interference fit with the recesses 30, generating sufficient friction to firmly lock the structure in the vertical direction. Simultaneously, the contact between its side and the recesses 30 effectively prevents lateral slippage, thereby ensuring stable connection of the module structure in various usage scenarios. Furthermore, a reasonable size design also helps optimize the installation and magnetic attraction of the electromagnet, ensuring that the electromagnet can work stably within the protrusion 20 and achieve reliable magnetic attraction with the electromagnet in the recesses 30, further enhancing connection stability.

[0036] In one embodiment, such as Figures 3 to 4 As shown, the modular battery module structure also includes a first connector 60. One end of the first connector 60 near the recess 30 is fixedly connected to the outer wall of the recess 30, and the other end of the first connector 60 away from the recess 30 is detachably connected to the inner wall of the mounting cavity 11. Understandably, this connection method allows the recess 30 to be securely installed inside the module body 12 while maintaining detachable flexibility; it not only facilitates the assembly and disassembly of the battery module, improving the efficiency of battery module maintenance and replacement, but also enhances the stability and reliability of the entire structure.

[0037] In one embodiment, such as Figures 1 to 2As shown, the modular battery module structure also includes an L-shaped overlap 70, which extends into the recess 30 and the receiving cylinder 40 respectively. The electromagnet in the second receiving groove 31 is connected to the negative power terminal in the receiving cylinder 40 via copper foil and along the L-shaped overlap 70. Understandably, both the receiving cylinder 40 and the recess 30 have through holes for wiring at corresponding positions. The L-shaped overlap 70 extends into these through holes, and the copper foil connects the electromagnet in the second receiving groove 31 to the negative power terminal in the receiving cylinder 40 via the L-shaped overlap 70. The design of the L-shaped overlap 70 simplifies the entire electrical connection process, reduces the need for complex wiring, and facilitates assembly and maintenance. It also effectively prevents poor contact caused by loose copper foil or misalignment, improving the reliability and safety of the battery module.

[0038] In one embodiment, such as Figures 3 to 4 As shown, the modular battery module structure also includes a second connector 80. One end of the second connector 80, away from the receiving cylinder 40, is detachably connected to the outer wall of the mounting cavity 11. The other end of the second connector 80, near the receiving cylinder 40, extends into the receiving cylinder 40 and provides a circuit installation path for the electromagnet in the first receiving slot 21 to be positively connected to the power supply in the receiving cylinder 40 via copper foil. Understandably, a through-hole is provided at a suitable position near the positive terminal of the power supply in the receiving cylinder 40, allowing the copper foil to smoothly connect the electromagnet in the first receiving slot 21 to the positive terminal of the power supply, reducing the need for complex wiring and facilitating assembly and maintenance.

[0039] In one embodiment, such as Figures 3 to 4 As shown, the thickness of the receiving cylinder 40 is 0.15-0.2mm. Understandably, the thickness of the receiving cylinder 40 can be set according to actual needs. A suitable thickness ensures the structural strength of the receiving cylinder 40 while minimizing material usage, thus reducing overall weight and cost. The thickness of the receiving cylinder 40 can be flexibly set based on factors such as the specific dimensions of the battery module, expected mechanical strength, cost budget, and internal space optimization requirements to achieve the best balance between performance and economy.

[0040] Understandably, the receiving cylinder 40 is used to house and install the power supply. To facilitate the installation and replacement of the power supply, the bottom cover of the receiving cylinder 40 can be designed as a detachable bottom cover. This design allows users to easily open the bottom cover and place the power supply into the receiving cylinder 40, thereby achieving quick assembly and maintenance. To ensure that the power supply is stably fixed inside the receiving cylinder 40 and to prevent the power supply from shaking due to vibration or movement, a fixing component can be provided on the outer wall of the receiving cylinder 40 to firmly hold the power supply in place, providing additional fixing force to ensure that the power supply remains stable during use and to avoid affecting the normal operation of the circuit due to loosening. The fixing component includes, but is not limited to, push rod type snap-fit ​​structure, magnetic fasteners, etc.

[0041] This utility model also provides a modular battery module assembly device, comprising multiple modular battery module structures as described above. Two of the modular battery module structures are connected in series or in parallel through the insertion and engagement of the protrusion 20 and the recess 30. Understandably, series connection can increase voltage, while parallel connection can expand capacity. This modular connection method not only simplifies the circuit assembly process but also improves the system's flexibility and scalability. Users can freely combine battery modules according to actual needs, like building blocks, without complex welding or modification, thereby significantly shortening the development cycle and reducing usage costs. Simultaneously, this structure enhances the stability and safety of the battery modules, ensuring a firm connection through mechanical interlocking and magnetic attraction, preventing circuit failures caused by loosening or poor contact.

[0042] In the vehicle described in the above embodiment of this utility model, the independent battery module building block unit 10 is designed in a building block-like form. Users can flexibly connect battery modules in series (boost voltage) or in parallel (expand capacity) by inserting the protrusion 20 of one unit into the recess 30 of another unit, thereby adjusting the voltage and capacity of the power supply according to different circuit requirements. Simultaneously, the electromagnet in the first receiving groove 21 of the protrusion 20 and the electromagnet in the second receiving groove 31 of the recess 30 are magnetically attracted, further enhancing the connection stability between the two battery module building block units 10 connected in parallel or series.

[0043] In the education field, this device allows students to operate battery modules in series and parallel, witnessing firsthand how voltage and current change with different connection methods. It transforms abstract circuit theory into vivid and intuitive experimental phenomena, perfectly aligning with the core trends of STEM education and effectively stimulating students' learning interest and creativity. For makers and developers, the device's plug-and-play nature and flexible adjustment capabilities greatly simplify the power adaptation process, allowing them to focus more on developing core functions, significantly shortening development cycles, and accelerating the product's journey from idea to reality.

[0044] In terms of power supply, this device is based on button batteries and uses ingenious circuit design to support series boost and parallel expansion, easily covering the power needs of 99% of low-power devices, achieving "one source for multiple uses" and saving users significant costs. Furthermore, the modular design allows for quick replacement of individual damaged battery modules (unit 10), avoiding the waste of resources from scrapping the entire device. It is also compatible with rechargeable batteries (such as the LIR2032), further reducing the use of disposable batteries and contributing to environmental protection. By abandoning traditional fixed interfaces, this device adopts a universal and expandable interface design (protrusion 20 and recess 30), seamlessly adapting to emerging devices in rapidly iterating fields such as the Internet of Things and robotics, providing continuous power support for technological innovation and development, and is expected to become an important force driving change in related fields.

[0045] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A modular battery module structure, characterized in that, The battery module building block unit (10) includes a module body (12) having a mounting cavity (11), at least two protrusions (20) disposed at the end of the module body (12) away from the opening end of the mounting cavity (11), at least two recesses (30) detachably mounted in the mounting cavity (11), and a receiving cylinder (40) installed at the center of the mounting cavity (11) for accommodating power. Each of the protrusions (20) includes a first receiving groove (21) for accommodating an electromagnet, and each of the recesses (30) includes a second receiving groove (31) for accommodating an electromagnet. The electromagnet in the first receiving groove (21) is connected to the positive terminal of the power supply in the receiving cylinder (40) through a copper foil, and the electromagnet in the second receiving groove (31) is connected to the negative terminal of the power supply in the receiving cylinder (40) through a copper foil. The outer diameter of the protrusion (20) is equal to the inner diameter of the recess (30).

2. The modular battery module structure according to claim 1, characterized in that, The number of the protrusions (20) and the recesses (30) is set to 4, and the central axis of each protrusion (20) and each recess (30) coincides; the 4 recesses (30) are evenly spaced around the receiving cylinder (40).

3. The modular battery module structure according to claim 1, characterized in that, The contact surface between the module body (12) and the protrusion (20) is provided with a wire hole (50).

4. The modular battery module structure according to claim 3, characterized in that, The thickness of the protrusion (20) is 0.48mm-0.52mm; the height of the protrusion (20) is 3mm-5mm.

5. The modular battery module structure according to claim 4, characterized in that, It also includes a first connector (60), one end of the first connector (60) near the recess (30) is fixedly connected to the outer wall of the recess (30), and the other end of the first connector (60) away from the recess (30) is detachably connected to the inner wall of the mounting cavity (11).

6. The modular battery module structure according to claim 5, characterized in that, It also includes an L-shaped lap (70), which extends into the recess (30) and the receiving tube (40) respectively. The electromagnet in the second receiving groove (31) is connected to the negative terminal of the power supply in the receiving tube (40) through copper foil and along the L-shaped lap (70).

7. The modular battery module structure according to claim 5, characterized in that, It also includes a second connector (80), one end of which is detachably connected to the outer wall of the mounting cavity (11) away from the receiving cylinder (40), and the other end of which is close to the receiving cylinder (40) extends into the receiving cylinder (40) and provides a circuit installation path for the electromagnet in the first receiving groove (21) to be positively connected to the power supply in the receiving cylinder (40) through copper foil.

8. The modular battery module structure according to claim 5, characterized in that, The thickness of the accommodating cylinder (40) is 0.15-0.2 mm.

9. A modular battery module assembly device, characterized in that, It includes multiple modular battery module structures as described in any one of claims 1-8, wherein two of the modular battery module structures are connected in series or in parallel by the insertion and engagement of the protrusion (20) and the recess (30).

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