Angle-adjustable power generation ear tag for animals

Abstract

The invention discloses an angle-adjustable animal power generation ear tag which comprises a main body shell and a fixing piece, the fixing piece and the main body shell are connected through an angle adjusting structure, the angle adjusting structure comprises a rotating seat arranged on the main body shell, and a rotating cavity is formed in the rotating seat; the rotating cavity is provided with a plurality of bayonets which are distributed at intervals in the circumferential direction; the angle adjusting structure further comprises a rotating head which is arranged on the fixing piece and extends into the rotating cavity, and the rotating head is provided with a buckle capable of rotating and switching between the bayonets. The fixing piece and the main body shell are connected through the angle adjusting structure, when the friction nanometer power generation unit is applied to a specific animal, the performance at different angles is detected after the angle is adjusted, the contact condition of the friction nanometer power generation unit is optimized, and therefore the friction nanometer power generation unit is always kept at the optimal angle in the using process. To maximize the generation of triboelectric charges, this dynamic adjustment mechanism significantly improves energy capture efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of ear tags, in particular to an angle-adjustable electric ear tag for animals. Background Art

[0002] Animal ear tags are not only a basic tool for animal identification, but also bear the important responsibility of recording and managing animal health, production performance and genetic information. With ear tags, farmers and managers can easily track the growth process of animals, monitor their health and track their historical data. Ear tags are usually equipped with wireless communication modules that can transmit real-time data to a central database, allowing managers to quickly obtain information and make timely decisions. Traditional ear tags rely on batteries for power supply, but battery replacement and maintenance not only increase operating costs, but may also burden the environment. Batteries have a limited service life and need to be replaced regularly, which will make battery management and replacement more complicated and cumbersome, and also increase the workload of operators.

[0003] For example, the utility model with authorization announcement number CN221198723U discloses an ear tag-type body temperature monitoring device for pig breeding, which can remotely monitor the body temperature of pigs. The monitoring device has high installation efficiency and accurate monitoring, but as the number of devices increases, the management and replacement of batteries will become more complicated and cumbersome. Battery replacement and maintenance not only increase operating costs, but may also burden the environment.

[0004] Therefore, finding a reliable and sustainable energy supply solution has become an important direction for the current development of ear tag technology.

[0005] For example, the utility model with authorization announcement number CN217850788U discloses an embedded animal ear tag device, including a shell, on which a rotating mechanism is provided; the rotating mechanism is fixedly connected to a magnetic induction power generation mechanism; the outer side of the shell is fixedly connected to an electronic ink display screen; the inside of the shell is fixedly connected to an electronic device mechanism; the shell is fixedly connected to a mounting shell; the mounting shell is provided with an insertion rod mechanism and a limit bolt, and the limit bolt and the mounting shell are threadedly connected. The utility model can realize rotation after being placed on the ear of an animal by setting a rotating mechanism, and can realize power supply to the energy storage system in combination with the magnetic induction power generation mechanism, thereby preventing the ear tag function from failing due to power shortage.

[0006] A triboelectric nanogenerator is a device that generates electricity through friction or contact, and it can harvest energy from the daily movements of ear tags. The working principle of this generator is based on the triboelectric effect, when two surfaces of different materials come into contact and separate, electric charges are generated on their surfaces, thus generating an electric current. Triboelectric nanogenerators have the advantages of high efficiency, low cost and environmental protection, and can continuously generate electricity in dynamic environments. Since animals are constantly moving and rubbing during their daily activities, this provides a continuous source of energy for triboelectric nanogenerators. Summary of the invention

[0007] In view of the above-mentioned deficiencies in the prior art, the present invention provides an angle-adjustable electric ear tag for animals.

[0008] An angle-adjustable power-generating ear tag for animals, comprising a main body shell, one side of the main body shell is provided with a fixing plate, one end of the fixing plate is connected to the main body shell, and the other end is provided with a fixing hole for fixing to an animal; The fixing plate is connected to the main body shell through an angle adjustment structure, and the angle adjustment structure includes a rotating seat provided on the main body shell, a rotating cavity is provided in the rotating seat, and the rotating cavity has a plurality of bayonet holes distributed at intervals along the circumferential direction; the angle adjustment structure also includes a rotating head provided on the fixing plate and extending into the rotating cavity, and the rotating head is provided with a buckle that can be rotated and switched between the bayonet holes; the angle adjustment structure is also provided with a locking mechanism for fixing the angle between the rotating head and the rotating cavity; The main body shell is provided with a plurality of friction nano power generation units and a power management module, wherein the power management module includes a battery for storing the electricity generated by the friction nano power generation unit; When in use, first install the buckle of the rotating head and multiple animal power-generating ear tags in cooperation with different bayonets on the animals of the species to be used, detect the energy collection conditions respectively, and select the optimal installation angle of the rotating head and the rotating chamber for subsequent use.

[0009] Preferably, the main shell is a sheet-like structure as a whole and has a housing cavity for accommodating the friction nano power generation unit and the power management module; the main shell is opened on both sides in the thickness direction and is provided with a cover plate.

[0010] More preferably, the projected shape of the accommodating cavity is a rectangle.

[0011] Preferably, the friction nano power generation unit is arranged perpendicular to the axial direction of the rotating cavity.

[0012] More preferably, the friction nano power generation unit includes a plurality of friction nano power generation units, and each of the friction nano power generation units is arranged side by side along the axial direction of the rotating chamber.

[0013] The axial direction of the fixing hole on the fixing plate is perpendicular to the arrangement direction of each friction nano power generation unit and the axial direction of a single friction nano power generation unit.

[0014] Further preferably, the friction nano power generation unit comprises a power generation cavity, wherein the power generation cavity has two electrode layers, the two electrode layers are respectively located at one end of the power generation cavity and there is a gap between the two electrode layers; The friction nano power generation unit also includes a friction ball placed in the power generation chamber and rolling on the electrode layer to generate friction power.

[0015] Further preferably, the electrode layer is arranged at least at one of the bottom surface, the side surface and the top surface of the power generation cavity.

[0016] Further preferably, the material of the electrode layer is at least one of carbon nanotubes, conductive polymers, metal films and conductive oxides; The friction ball is made of a negatively charged material, and the negatively charged material is at least one of polytetrafluoroethylene, polyvinylidene fluoride, polydimethylsiloxane, polyvinyl alcohol resin, polyvinyl fluoride, epoxy resin, polystyrene and polycarbonate.

[0017] Preferably, the angle-adjustable animal power-generating ear tag further comprises a sensor for monitoring the physiological state of the animal, and a Bluetooth module for transmitting the monitored data via Bluetooth; The power management module is located on one side of the accommodating cavity, and the sensor and the Bluetooth module are located on the side where the power management module is located.

[0018] Preferably, the angle-adjustable animal power-generating ear tag further comprises a fixing pin for cooperating with the fixing hole to fix the angle-adjustable animal power-generating ear tag to the animal.

[0019] The power generating ear tag of the present invention can be used for breeding animals such as pigs, cattle, sheep, etc.

[0020] The angle-adjustable animal power-generating ear tag of the present invention connects the fixing plate and the main body shell through an angle adjustment structure. When applied to a specific animal, the performance at different angles is detected by adjusting the angle, and the contact conditions of the friction nano-power generation unit are optimized, so that the friction nano-power generation unit always maintains the best angle during use. This maximizes the generation of friction charges, and this dynamic adjustment mechanism significantly improves the energy capture efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of the angle-adjustable power-generating ear tag for animals.

[0022] Figure 2 The figure is a schematic diagram of the internal structure of the angle-adjustable power-generating ear tag for animals of the present invention.

[0023] Figure 3 The figure is a schematic diagram of the exploded structure of the angle-adjustable power-generating ear tag for animals of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the friction nano power generation unit of the present invention.

[0025] Figure 5 It is a schematic structural diagram of a cover plate used for covering a friction nano power generation unit according to the present invention.

[0026] Figure 6 Schematic diagram of the three-dimensional structure of the angle adjustment structure.

[0027] Figure 7 Schematic diagram of the top view of the angle adjustment structure.

[0028] Figure 8 It is a schematic diagram of the top view of the rotating seat.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the rotating head.

[0030] Fig.10 It is a schematic diagram of the top view structure after the angle of the angle adjustment structure is fixed.

[0031] Fig.11 It is a schematic diagram of the top view structure of the locking block.

[0032] Fig.12 The present invention is a schematic diagram of the power generation circuit structure of the angle-adjustable power generating ear tag for animals.

[0033] Fig.13 The output voltage (left figure) and current diagram (right figure) of the present invention at different rotation angles.

[0034] Reference numerals: Main body shell 1, accommodating cavity 11, first cover plate 12, electrode layer 121, spacer 122, second cover plate 13, Fixed sheet 2, fixed hole 21, Angle adjustment structure 3, rotating seat 31, rotating cavity 32, bayonet 33, rotating head 34, buckle 35, cover plate 36, locking block 37, Friction nano power generation unit 4 , power generation chamber 41 , electrode layer 42 , friction ball 43 , and spacer 44 . DETAILED DESCRIPTION

[0035] like Figure 1 to Figure 10 As shown, an angle-adjustable electric ear tag for animals comprises a main shell 1, one side of the main shell 1 is provided with a fixing plate 2, one end of the fixing plate 2 is connected to the main shell 1, and the other end is provided with a fixing hole 21 for fixing to an animal.

[0036] The angle-adjustable animal power-generating ear tag of the present invention may also include a fixing nail for cooperating with the fixing hole 21 to fix the angle-adjustable animal power-generating ear tag to the animal. The power-generating ear tag of the present invention can be used for farmed animals such as pigs, cattle, and sheep.

[0037] like Figure 6~Figure 9 As shown, the fixing plate 2 is connected to the main shell 1 via an angle adjustment structure 3, which includes a rotating seat 31 arranged on the main shell 1, a rotating cavity 32 is arranged in the rotating seat 31, and the rotating cavity 32 has a plurality of bayonet holes 33 distributed at intervals along the circumferential direction, and four bayonet holes 33 distributed in a cross shape are shown in the figure.

[0038] The angle adjustment structure 3 further includes a rotating head 34 disposed on the fixed sheet 2 and extending into the rotating cavity 32. The rotating head 34 is provided with a buckle 35 that can be rotated and switched between the bayonet 33. The buckle 35 includes two buckles, which are arranged side by side at the end of the rotating head 34.

[0039] The side wall of the rotating cavity 32 between the two bayonet holes 33 protrudes toward the middle of the rotating cavity 32 to form a columnar structure, and the cross-section of the columnar structure is an arc-shaped part of the side wall of the rotating cavity 32. The distance between the two opposite columnar structures is slightly larger than the length between the two buckles 35 facing away from each other, so that the rotating head 34 can rotate freely in the rotating cavity 32, but due to the clamping position of the columnar structure, the rotating head 34 can easily rotate to the angle when the buckle 35 falls into the bayonet hole 33. The angle adjustment structure 3 can change the angle of the ear tag in units of 45° to ensure efficient energy collection efficiency. Figure 1~Figure 3 In the structure shown in , at this time, the surface where the length and width direction of the main shell 1 is perpendicular to the axial direction of the fixing hole 21, and the angle of the rotating head 34 relative to the rotating chamber 32 can be set to 0°. Similarly, at 90° and 180°, the surface where the length and width direction of the main shell 1 is perpendicular to the axial direction of the fixing hole 21, and at 45° and 135°, the surface where the length and width direction of the main shell 1 is parallel to the axial direction of the fixing hole 21.

[0040] The angle adjustment structure 3 is also provided with a locking mechanism for fixing the angle between the rotating head 34 and the rotating cavity 32. The locking mechanism is a locking block 37 that is inserted into the bayonet 33. Figure 10~Figure 11 As shown, a locking block 37 is inserted into the bayonet 33 where the buckle 35 is located, so that the rotating head 34 can no longer rotate at will, thereby achieving a fixed angle of the rotating head 34 relative to the rotating cavity 32 .

[0041] When in use, first install the buckle 35 of the rotating head 34 and multiple animal power-generating ear tags in cooperation with different bayonet holes 33 on the animals of the species to be used, detect the energy collection conditions respectively, and select the optimal installation angle of the rotating head 34 and the rotating cavity 32 for subsequent use.

[0042] The top surface of the rotating seat 31 is open, and a cover sheet 36 for covering the rotating chamber 32 is provided at the opening. The cover sheet 36 has a through hole for the rotating head 34 to pass through. The rotating head 34 passes through the through hole, but is not fixed to the side wall of the through hole, so that the rotating head 34 and the cover sheet 36 can rotate freely relative to each other. The overall size of the two buckles 35 makes it impossible for the buckles 35 to escape from the through hole of the cover sheet 36, so the two buckles 35 can only rotate in the rotating chamber 32.

[0043] like Figure 1~Figure 5 As shown, the main housing 1 is a sheet-like structure as a whole, and has a housing cavity 11. The two sides of the main housing 1 in the thickness direction are opened and provided with covers (a first cover 12 and a second cover 13). The projection shape of the housing cavity 11 in the main housing 1 is a rectangle, that is, the housing cavity 11 is a flat rectangular parallelepiped shape as a whole. A plurality of friction nano-power generation units 4 and a power management module are provided in the housing cavity 11.

[0044] The friction nano power generation unit 4 is arranged axially perpendicular to the rotating chamber 32. Each friction nano power generation unit is a long columnar structure, and each friction nano power generation unit 4 is arranged side by side along the axial direction of the rotating chamber 32. The axial direction of the fixing hole 21 on the fixing plate 2 is perpendicular to the arrangement direction of each friction nano power generation unit 4 and the axial direction of a single friction nano power generation unit 4.

[0045] The friction nano power generation unit 4 collects energy by sliding friction. Two friction surfaces in contact with each other include negatively charged materials and electrode layers, one of which is a charge generating surface and the other is a charge receiving surface.

[0046] Each friction nano power generation unit 4 includes a power generation chamber 41 . The bottom surface and four side walls of the power generation chamber 41 can be integrally prepared and then assembled into the accommodating chamber 11 , or can be directly integrally prepared with the main housing 1 in the accommodating chamber 11 .

[0047] There are two electrode layers 42 in the power generation cavity 41, and the two electrode layers 42 are respectively located at one end of the power generation cavity 41 and there is a gap 44 between the two electrode layers 42. Among them, the electrode layer 42 is set at at least one of the bottom surface, side surface and top surface of the power generation cavity 41. In the structure described in the figure, in addition to the electrode layer 42 being set on the bottom surface, an electrode layer is also set on the top surface (i.e., the inner side surface of the cover plate on one side of the power generation cavity 41).

[0048] like Figure 3 As shown, one side of the accommodating cavity 11 is the first cover plate 12 , and the other side is the second cover plate 13 , while the power generation cavity 41 is opened toward one side of the first cover plate 12 , and the inner side surface of the first cover plate 12 serves as the top surface of the power generation cavity 41 . Figure 5As shown, two electrode layers 121 are also provided on the inner side of the first cover plate 12, and a gap 122 is provided between the two electrode layers 121. For the convenience of preparation, on the first cover plate 12, the electrode layers 121 corresponding to each friction nano power generation unit 4 and on the same side are connected into one piece.

[0049] The friction nano power generation unit 4 also includes a friction ball 43 placed in the power generation chamber 41 and generating power by rolling friction on the electrode layer 42. A plurality of friction balls 43 are arranged in each power generation chamber 41.

[0050] The material of the electrode layer (including the electrode layer 42 and the electrode 121) is at least one of carbon nanotubes, conductive polymers, metal films and conductive oxides. The metal film can be copper foil or copper film. The thickness of the electrode layer is 1 μm to 0.5 mm. The interval between the electrode layers is 0.5-2 times the diameter of the friction ball 43.

[0051] The friction ball 43 is made of a negatively charged material, and the negatively charged material is at least one of polytetrafluoroethylene, polyvinylidene fluoride, polydimethylsiloxane, polyvinyl alcohol resin, polyvinyl fluoride, epoxy resin, polystyrene and polycarbonate.

[0052] Each friction nano power generation unit 4 is connected in series or in parallel. The friction nano power generation unit 4 uses the principle of combining friction electric effect and electrostatic induction to collect the mechanical energy generated when the animal's ears swing. The negatively charged material can generate mechanical movement on the electrode surface as the animal's ears swing.

[0053] like Fig.12 As shown, the electric energy generated by the friction nano power generation unit 4 is stored in the power management module through the rectifier circuit. The power management module arranged in the accommodating cavity 11 includes a battery for storing the electricity generated by the friction nano power generation unit 4. In the present application, the rectifier circuit and the power management module can directly use the technical solutions commonly used in the prior art, and no improvement is made in the present application, so the specific structure is not drawn in the drawings of the present application. In the present application, the rectifier circuit and the power management module are both arranged in the accommodating cavity 11 between the friction nano power generation unit 4 and the second cover plate 13.

[0054] When the friction ball 43 slides on the surfaces of the two electrode layers, alternating current is generated, which is converted into direct current through a rectifier circuit, and then stored in a battery in the power management module, so that electrical energy can be output under different conditions.

[0055] The angle-adjustable power-generating ear tag for animals of the present application also includes a sensor for monitoring the physiological state of the animal, and a Bluetooth module for transmitting the monitored data via Bluetooth. The sensor and the Bluetooth module are also located on the side where the power management module is located. The sensor and the Bluetooth module can also use the technical solutions commonly used in the prior art, which are not shown in the figure. The type of sensor can be a sensor or multiple sensors for detecting body temperature, heart rate, etc.

[0056] The angle-adjustable power-generating ear tag for animals in this application can be prepared by 3D printing. First, the ear tag model is created and modeled. Then, the ear tag main body shell is printed on the Bambu Lab 3D printer using a biocompatible material (such as polylactic acid). The negatively charged material is printed with polytetrafluoroethylene. Finally, the printed materials are assembled and the electrode layer is attached to the corresponding position during assembly. The electrode layer can be used by sticking conductive tape.

[0057] Example 1

[0058] The length of a single friction nano power generation unit is 4.8 cm and the width is 0.8 cm. Copper foil is used as the electrode layer and pasted on the bottom and side of the power generation chamber of the friction nano power generation unit. The length of a single electrode layer is 2 cm, and the interval between the two electrode layers is 0.8 cm. Similarly, an electrode layer of the same size is also printed on the first cover plate, and the material of the electrode layer is a copper film. A small ball printed from polytetrafluoroethylene material is placed in the power generation chamber as a negatively charged material, and the diameter of the small ball is 0.3 cm. In the above manner, the negatively charged material 9 can slide and rub back and forth between the two electrode layers as the animal's ears mechanically swing, thereby generating a friction potential, prompting the friction nano power generation unit to convert mechanical energy into electrical energy.

[0059] In the rotating seat of the angle adjustment structure, the inner diameter of the rotating cavity is 9mm, and the narrowest distance between two of the four cylindrical structures protruding from the rotating cavity is 5.5mm. The diameter of the rotating head 34 is 3.5mm, and the farthest distance between the two buckles 35 is 5mm.

[0060] like Fig.13 As shown, in order to explore the energy collection of the power-generating ear tag of the present invention at different rotation angles, the power-generating ear tag was installed on the ear of a cow, and the open circuit voltage and short circuit current of the power-generating ear tag at three different rotation angles (0°, 45°, 90°) were recorded. The swing frequency is 2, and the swing time is 5 minutes. When the rotation angle is 90°, the open circuit voltage and short circuit current are the largest, which are 54.3V and 141.2nA respectively. This may be because the swing angle is the same as the movement direction of the negatively charged material, so the energy collection is most ideal. When used in this group of cows later, a fixed angle at a rotation angle of 90° is used.

Claims

1. An angle-adjustable electric ear tag for animals, comprising a main body shell, characterized in that: A fixing plate is provided on one side of the main shell, one end of the fixing plate is connected to the main shell, and the other end of the fixing plate is provided with a fixing hole for fixing to an animal; The fixing plate is connected to the main body shell through an angle adjustment structure, and the angle adjustment structure includes a rotating seat provided on the main body shell, a rotating cavity is provided in the rotating seat, and the rotating cavity has a plurality of bayonet holes distributed at intervals along the circumferential direction; the angle adjustment structure also includes a rotating head provided on the fixing plate and extending into the rotating cavity, and the rotating head is provided with a buckle that can be rotated and switched between the bayonet holes; the angle adjustment structure is also provided with a locking mechanism for fixing the angle between the rotating head and the rotating cavity; The main body shell is provided with a plurality of friction nano power generation units and a power management module, wherein the power management module includes a battery for storing the electricity generated by the friction nano power generation unit; When in use, first install the buckle of the rotating head and multiple animal power-generating ear tags in cooperation with different bayonets on the animals of the species to be used, detect the energy collection conditions respectively, and select the optimal installation angle of the rotating head and the rotating chamber for subsequent use.

2. The angle-adjustable power-generating ear tag for animals according to claim 1, characterized in that: The main body shell is a sheet-like structure as a whole, and has a receiving cavity for receiving the friction nano power generation unit and the power management module; The main body shell is provided with openings on both sides in the thickness direction and provided with cover plates.

3. The angle-adjustable electric ear tag for animals according to claim 2, characterized in that: The projection shape of the accommodating cavity is a rectangle.

4. The angle-adjustable animal power-generating ear tag according to claim 2, characterized in that: The friction nano power generation unit is arranged perpendicular to the axial direction of the rotating cavity.

5. The angle-adjustable power-generating ear tag for animals according to claim 4, characterized in that: The friction nano power generation unit includes a plurality of friction nano power generation units, and each of the friction nano power generation units is arranged side by side along the axial direction of the rotating chamber.

6. The angle-adjustable electric ear tag for animals according to claim 5, characterized in that: The friction nano power generation unit comprises a power generation cavity, wherein the power generation cavity has two electrode layers, the two electrode layers are respectively located at one end of the power generation cavity and there is a gap between the two electrode layers; The friction nano power generation unit also includes a friction ball placed in the power generation chamber and rolling on the electrode layer to generate friction power.

7. The angle-adjustable power-generating ear tag for animals according to claim 6, characterized in that: The electrode layer is arranged at least at one of the bottom surface, the side surface and the top surface of the power generation cavity.

8. The angle-adjustable power-generating ear tag for animals according to claim 7, characterized in that: The material of the electrode layer is at least one of carbon nanotubes, conductive polymers, metal films and conductive oxides; The friction ball is made of a negatively charged material, and the negatively charged material is at least one of polytetrafluoroethylene, polyvinylidene fluoride, polydimethylsiloxane, polyvinyl alcohol resin, polyvinyl fluoride, epoxy resin, polystyrene and polycarbonate.

9. The angle-adjustable power-generating ear tag for animals according to claim 2, characterized in that: Also included are sensors for monitoring the physiological status of the animal, and a Bluetooth module for transmitting the monitored data via Bluetooth; The power management module is located on one side of the accommodating cavity, and the sensor and the Bluetooth module are located on the side where the power management module is located.

10. The angle-adjustable power-generating ear tag for animals according to claim 1, characterized in that: It also includes a fixing nail used to cooperate with the fixing hole to fix the angle-adjustable animal power-generating ear tag to the animal.

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