Vibration isolation and energy collection integrated backpack

Abstract

The invention relates to the technical field of wearable equipment and energy collection crossing, in particular to a vibration isolation and energy collection integrated backpack. The X-shaped buckling beam structure comprises a first panel and a second panel, the second panel is assembled on one side of the first panel, backpack shoulder straps are arranged on the other side of the first panel, an X-shaped buckling beam structure is assembled between the first panel and the second panel, and the X-shaped buckling beam structure comprises an X-shaped structure and a buckling beam. Through the structural design of the X-shaped buckling beam structure, the device can conveniently achieve the quasi-zero stiffness characteristic, has the low-frequency or ultra-low-frequency vibration isolation function and is superior to a traditional spring damping structure, vibration energy generated when a human body does knapsack movement can be collected and converted into electric energy, and the energy is saved. The external power supply can meet the field power demand, such as the field low-power electricity demand of GPS, Bluetooth communication and the like, is free of a battery, and can achieve the purpose of being more environment-friendly and convenient to use.

Description

Technical Field

[0001] This invention relates to the field of wearable equipment and energy harvesting technology, and in particular to an integrated backpack for vibration isolation and energy harvesting. Background Technology

[0002] Carrying loads while moving is a common behavior in human production and activities. There is a widespread and urgent need for high carrying comfort and continuous portable power supply in fields such as individual combat, field exploration, emergency rescue, long-distance travel, and daily commuting. In these scenarios, when people walk or run, the backpack load generates significant up-and-down reciprocating vibrations due to the human stride cycle. This continuous impact load can easily lead to fatigue, discomfort, and even musculoskeletal damage in the user's shoulders and back. Only by adopting efficient vibration isolation mechanisms can carrying comfort be effectively improved. The mechanical energy generated in these scenarios is usually dissipated by traditional backpack structures or simple cushioning pads in the form of structural stress and heat, failing to effectively utilize the backpack as a continuous and ubiquitous energy carrier, resulting in energy waste. In outdoor and mobile work environments, power supply is scarce, carrying spare batteries increases weight and is inconvenient for charging, and battery recycling and disposal remain difficult. Not carrying batteries can reduce pollution and resource consumption, contributing to sustainable development. Therefore, a self-powered technology that can collect and convert energy on-site is needed. To this end, we propose an integrated vibration isolation and energy harvesting backpack. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated backpack for vibration isolation and energy harvesting, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An integrated vibration isolation and energy harvesting backpack includes a first panel and a second panel. The second panel is mounted on one side of the first panel, and a backpack shoulder strap is provided on the other side of the first panel. An X-shaped buckling beam structure is mounted between the first panel and the second panel. The X-shaped buckling beam structure includes an X-shaped structure and a buckling beam. Strip-shaped protrusions are integrally fixed on the top of the first panel and the bottom of the second panel. An X-shaped structure is fixed between the two strip-shaped protrusions and the X-shaped structure is in a stretched state. A buckling beam is fixed on the inner side of the X-shaped structure.

[0006] Preferably, the X-shaped structure consists of two vertically symmetrical rhomboid structures.

[0007] Preferably, the buckling beam is located inside one of the rhomboid structures, and the buckling beam is perpendicular to the vertical central axis of the X-shaped structure.

[0008] Preferably, the X-shaped buckling beam structure further includes a piezoelectric ceramic sheet, and the top of the buckling beam is bonded with the piezoelectric ceramic sheet.

[0009] Preferably, one end of the piezoelectric ceramic sheet is connected to a power management circuit, and the other end of the piezoelectric ceramic sheet is connected to a power supply device.

[0010] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0011] Meanwhile, through the above technical solutions, the present invention has at least the following beneficial effects:

[0012] 1. The present invention, through the structural design of the X-shaped buckling beam structure, makes it easy for the device to achieve quasi-zero stiffness characteristics, giving it low-frequency high-performance vibration isolation characteristics, which is superior to the traditional spring damping structure.

[0013] 2. This invention can collect the energy from the vibration of a human backpack during movement and convert it into electrical energy. It can provide an external power source to meet low-power power needs in the wild, such as GPS and Bluetooth communication. Moreover, it does not require batteries, making it more environmentally friendly and convenient to use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram illustrating the usage state of the present invention;

[0016] Figure 2 This is a schematic diagram of the connection structure between the X-shaped structure and the buckling beam of the present invention;

[0017] Figure 3 This is a schematic diagram of the dynamics of the present invention;

[0018] Figure 4 Here are simplified structural diagrams and exploded views of the present invention;

[0019] Figure 5 This is a schematic diagram of the power management circuit connection of the present invention.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] In the diagram: 1. Panel 1; 2. Panel 2; 3. X-shaped structure; 4. Buckling beam; 5. Piezoelectric ceramic sheet. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 and not intended to limit the invention.

[0023] Example

[0024] Reference Figure 1-5 A vibration isolation and energy harvesting integrated backpack includes a first panel 1 and a second panel 2, which form a basically parallel structure; the first panel 1 contacts the shoulder; the first panel 1 and the second panel 2 are connected by an X-shaped buckling beam structure; the vibration reduction is mainly achieved through the X-shaped buckling beam structure to achieve quasi-zero stiffness characteristics, so that it has low-frequency or ultra-low-frequency vibration isolation function.

[0025] A piezoelectric ceramic sheet 5 is attached to the upper surface of the buckling beam 4. When the beam moves, the buckling beam 4 will undergo a small deformation. At the same time, the piezoelectric ceramic sheet 5 attached to the surface of the buckling beam 4 will generate charge under the action of vibration, realizing the external discharge current. The wire is located inside the rhomboid structure of the X-shaped structure 3 and is used to connect the circuit.

[0026] Circuits such as Figure 5 As shown, the entire circuit consists of five parts. The red box contains the P-SSHI circuit, designed to adapt to frequently changing backpack loads. When the piezoelectric voltage reaches its peak, it forms an LC resonant circuit, instantaneously reversing the polarity of the voltage across its terminals. One end is connected to the piezoelectric buckling beam 4. The brown box contains the cascaded buck-boost circuit for DC-DC conversion. The green box contains the oscillator circuit, which controls the switching of the cascaded buck-boost circuit through the generated duty cycle signal. The blue box contains the wake-up circuit, which reduces energy loss and improves efficiency. The yellow box contains the overvoltage protection circuit, which prevents excessive output voltage and ensures a stable DC output from the power management circuit. The power management circuit converts unstable AC voltage into stable DC voltage, enabling direct power supply to electronic devices such as mobile phones, GPS devices, and Bluetooth communication devices without the need for batteries, thus meeting environmental protection requirements.

[0027] In summary:

[0028] This invention addresses the following technical problems: Current technologies fail to effectively utilize backpacks as a continuous and ubiquitous energy source, resulting in energy waste; power supply is scarce in outdoor and mobile work environments, carrying spare batteries is heavy and inconvenient for charging, and battery recycling remains challenging. By employing the technical solutions described in the above embodiments, this application can inevitably solve the aforementioned technical problems and achieve the following technical effects:

[0029] 1. The present invention, through the structural design of the X-shaped buckling beam structure, makes it easy for the device to achieve quasi-zero stiffness characteristics, giving it low-frequency or ultra-low-frequency vibration isolation function, which is superior to the traditional spring damping structure.

[0030] 2. This invention can collect the energy from the vibration of a human backpack during movement and convert it into electrical energy. It can provide an external power source to meet low-power power needs in the wild, such as GPS and Bluetooth communication. Moreover, it does not require batteries, making it more environmentally friendly and convenient to use.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A backpack integrating vibration isolation and energy harvesting, characterized in that, The device includes panel 1 (1) and panel 2 (2). Panel 2 (2) is mounted on one side of panel 1 (1) and a backpack shoulder strap is provided on the other side of panel 1 (1). An X-shaped buckling beam structure is mounted between panel 1 (1) and panel 2 (2). The X-shaped buckling beam structure includes an X-shaped structure (3) and a buckling beam (4). A strip-shaped protrusion is integrally fixed on the top of panel 1 (1) and the bottom of panel 2 (2). An X-shaped structure (3) is fixed between the two strip-shaped protrusions and the X-shaped structure (3) is in a stretched state. A buckling beam (4) is fixed on the inner side of the X-shaped structure (3).

2. The integrated vibration isolation and energy harvesting backpack according to claim 1, characterized in that, The X-shaped structure (3) consists of two vertically symmetrical rhomboid structures.

3. The integrated vibration isolation and energy harvesting backpack according to claim 2, characterized in that, The buckling beam (4) is located inside one of the rhomboid structures and is perpendicular to the vertical central axis of the X-shaped structure (3).

4. The integrated vibration isolation and energy harvesting backpack according to claim 1, characterized in that, The X-shaped buckling beam structure also includes a piezoelectric ceramic sheet (5), and the top of the buckling beam (4) is bonded with the piezoelectric ceramic sheet (5).

5. The integrated vibration isolation and energy harvesting backpack according to claim 4, characterized in that, One end of the piezoelectric ceramic sheet (5) is connected to the power management circuit, and the other end of the piezoelectric ceramic sheet (5) is connected to the power supply equipment.

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