Flexible mobile power supply
The power bank, designed with flexible materials, solves the problems of low weight density and inconvenience caused by rigid shells, achieving high energy density and portability, and possessing bending flexibility.
Patent Information
- Application Number
- CN202520072270.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing power bank casings are typically made of rigid materials, resulting in low weight density, making it difficult to adjust the shape and size according to user needs, inconvenient to carry, and easily damaged.
The upper and lower housings are made of flexible materials, which, together with the lithium battery assembly and PCBA, allow the power bank to bend along adjacent connections. Lightweight materials such as soft rubber, leather, or PU are used to reduce weight.
It achieves high weight energy density and is easy to carry, reducing the risk of damage during transport.
Smart Images
Figure CN223744407U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of mobile power supply, especially a flexible mobile power supply. BACKGROUND
[0002] The mobile power supply products on the market at present, the shell is usually hard material such as plastic, aluminum alloy, stainless steel. These hard shells provide protection while also increasing the weight of the product. The shell weight is too large in the proportion of the whole machine weight, it will affect the weight density ratio of the product, that is, the energy density (the ratio of battery capacity and product weight) of the mobile power supply. The weight density ratio is an important indicator to measure the performance of the mobile power supply, which is related to the portability and endurance of the product. At the same time, the mobile power supply with hard shell also has some inconvenience when carrying. First of all, the shape and size of the hard shell are often fixed, which is difficult to adjust according to the actual needs of the user. Secondly, the hard shell is easy to collide with the body or articles during carrying, causing damage or discomfort. SUMMARY
[0003] To solve the above problems, the utility model provides a flexible mobile power supply, which is deformable, realizes lightweight and flexible design, so that the weight energy density of the mobile power supply is higher, and it is more convenient to carry.
[0004] To achieve the above purpose, the utility model adopts the technical scheme of:
[0005] A flexible mobile power supply, comprising an upper shell, a middle row and a lower shell, wherein the lower shell and the upper shell are made of flexible material, the upper shell is composed of a plurality of cup-shaped structures connected in sequence and integrally formed, the lower shell is a plate, and the cup-shaped structures of the upper shell form independent cavities after the upper shell and the lower shell are combined.
[0006] The middle row comprises a lithium battery assembly and a PCBA, the PCBA is located in one cavity, and the lithium battery assembly is located in the remaining cavities.
[0007] The flexible mobile power supply can be bent along the connection between adjacent two cup-shaped structures.
[0008] As a preferred, the PCBA is located in the cavity at one side end.
[0009] As a preferred, the cup-shaped structure is a square cup-shaped structure.
[0010] As a preferred, the lithium battery assembly comprises a plurality of lithium battery monomers, the lithium battery monomers are respectively placed in independent cavities, and the plurality of lithium battery monomers are connected in parallel through flexible conductors.
[0011] As preferred, the flexible conductor, the lithium battery assembly, and the PCBA are connected as a whole.
[0012] As preferred, the upper shell and the lower shell are soft glue light materials, and the lithium battery assembly and the PCBA are integrally injection connected with the upper shell and the lower shell.
[0013] As preferred, the upper shell and the lower shell are knittable materials, and the lithium battery assembly and the PCBA are bonded or sewn with the upper shell and the lower shell.
[0014] The beneficial effects of using the utility model are:
[0015] The flexible power bank has certain deformation ability after being prepared by using flexible materials due to the structural characteristics of the upper shell, can be bent along the connection between the two adjacent cup-shaped structures, and has the advantages of high weight energy density and convenience in carrying. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural schematic view of the flexible power bank.
[0017] Figure 2 It is an exploded schematic view of the flexible power bank.
[0018] Figure 3 It is a longitudinal sectional view of the flexible power bank.
[0019] Figure 4 It is Figure 3 A local enlarged view of the A in the figure.
[0020] Figure 5 It is a use state view of the flexible power bank.
[0021] Figure 6 It is another use state view of the flexible power bank.
[0022] The reference signs include:
[0023] 10-lithium battery row, 20-control body, 31-upper shell, 32-middle row, 321-lithium battery assembly, 322-PCBA, 33-lower shell. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the technical scheme more clear and obvious, the technical scheme will be further described in detail below in combination with specific embodiments. It should be understood that these descriptions are only exemplary, and are not intended to limit the scope of the technical scheme.
[0025] To solve the problem that the mobile power supply in the prior art cannot be bent because it is made of hard material and has relatively low weight capacity, as shown in Figure 1 , the present embodiment proposes a flexible mobile power supply, which is similar to a wristwatch in that it has a chain-like structure. The main body part of the mobile power supply is a lithium battery row 10, which is composed of a plurality of independent and integrally connected box-shaped structures. The plurality of box-shaped structures are all long strips, and the adjacent two box-shaped structures are connected by the edges in the width direction and form an integrated structure. The rightmost side of the lithium battery row 10 forms a control body 20, and the connection mode of the control body 20 and the lithium battery row 10 is consistent with the connection mode of the independent box-shaped structures in the lithium battery row 10.
[0026] As shown in Figure 2 , the flexible mobile power supply forms an upper shell 31, an intermediate row 32, and a lower shell 33 after being disassembled. The upper shell 31 is composed of a plurality of cup-shaped structures that are connected in sequence and integrally formed. The lower shell 33 is a plate material, and the cup-shaped structures of the upper shell 31 form independent cavities after being combined with the lower shell 33. The intermediate row 32 includes lithium battery assemblies 321 and a PCBA 322. The PCBA 322 is located in one cavity, and the lithium battery assemblies 321 are located in the remaining cavities. The flexible mobile power supply can be bent along the connection between adjacent two cup-shaped structures.
[0027] Among the above-mentioned cup-shaped structures, the rightmost cup-shaped structure has the largest volume, and the PCBA 322 is placed inside the rightmost cup-shaped structure. The lower shell 33 has corresponding positioning structures corresponding to the installation position of the PCBA 322.
[0028] As shown in Figure 3 and Figure 4 , the lithium battery assembly 321 includes a plurality of lithium battery cells, which are respectively placed in independent cavities and are connected in parallel through flexible conductors. The flexible conductors, the lithium battery assembly 321, and the PCBA 322 are connected as a whole.
[0029] The upper shell 31 and the lower shell 33 are made of soft glue, cowhide, PU, and other lightweight materials. In addition to protecting the lithium battery and the PCBA module inside the product, the lightweight material has a lower density than the hard material, which can effectively reduce the weight of the mobile power supply product. The lithium battery module inside the mobile power supply adopts a parallel connection design of 10 small batteries. This case is 10, but the patent includes but is not limited to 10. This design allows the lithium battery assembly 321 to be bent in a limited way, which in turn allows the mobile power supply product to be bent and deformed, forming the effects shown in Figure 5 and Figure 6 . When the mobile power supply shell is made of soft glue, the one-piece wrapping and molding scheme makes the product more simple in appearance.
[0030] In this embodiment, the lithium battery assembly 321 adopts a plurality of lithium batteries in parallel, which are connected into a whole by flexible conductive material, and the lithium battery group is connected into a whole with the PCBA assembly by flexible conductive material.
[0031] When the upper shell 31 and the lower shell 33 of the mobile power supply shell adopt soft glue light materials such as silicone rubber and thermoplastic elastomer, the lithium battery + PCBA module can be placed in a mold, and the mobile power supply shell is directly formed by one-time in-mold injection molding;
[0032] When the upper shell 31 and the lower shell 33 of the mobile power supply shell adopt light materials such as cowhide, artificial leather and cloth, the mobile power supply shell and the lithium battery + PCBA module can be connected into a whole by flexible adhesive bonding or needle stitching, so that the mobile power supply shell has good bending flexibility.
[0033] The upper shell 31 and the lower shell 33 of the mobile power supply shell adopt a bamboo joint-shaped outer shape structure design, so that the mobile power supply shell has good bending flexibility.
[0034] The above is only a preferred embodiment of the present application, and for those skilled in the art, many changes can be made in the specific implementation mode and application range according to the technical content of the present application, as long as these changes do not deviate from the concept of the present application, and all belong to the protection scope of the present patent.
Claims
1. A flexible power bank, characterized in that: The flexible power bank comprises an upper shell, a middle row and a lower shell, the lower shell and the upper shell are made of flexible material, the upper shell is composed of a plurality of cup-shaped structures connected in sequence and integrally formed, the lower shell is a plate, and the cup-shaped structures of the upper shell form independent cavities after the upper shell and the lower shell are combined; The middle row comprises a lithium battery assembly and a PCBA, the PCBA is located in one cavity, and the lithium battery assembly is located in the remaining cavities. The flexible power bank can be bent along the connection between two adjacent cup-shaped structures.
2. The flexible power bank of claim 1, wherein: The PCBA is located in the cavity at one side end.
3. The flexible power bank of claim 1, wherein: The cup-shaped structure is a square cup-shaped structure.
4. The flexible power bank of claim 1, wherein: The lithium battery assembly comprises a plurality of lithium battery monomers, the lithium battery monomers are respectively placed in independent cavities, and the plurality of lithium battery monomers are connected in parallel through flexible conductors.
5. The flexible power bank of claim 4, wherein: The flexible conductor, the lithium battery assembly and the PCBA are connected into an integral whole.
6. The flexible power bank of claim 1, wherein: The upper shell and the lower shell are made of soft rubber light material, the lithium battery assembly and the PCBA are integrally injection-molded with the upper shell and the lower shell.
7. The flexible power bank of claim 1, wherein: The upper shell and the lower shell are knitted materials, and the lithium battery assembly and the PCBA are bonded or sewn to the upper shell and the lower shell.