Passive electronic book water cup

By using a passive design and NFC energy harvesting technology to power the electronic water bottle, and combining it with a waterproof film to protect the electronic paper, the problem of water damage to the charging port is solved, achieving better sealing and environmental friendliness.

CN224369522UActive Publication Date: 2026-06-19HANGZHOU HAERS IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU HAERS IND CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing smart water bottles have charging ports that are prone to water ingress, which can damage internal electronic components and result in poor sealing, making them unable to effectively prevent water from entering.

Method used

It adopts a passive design, using an NFC sensing antenna and energy harvesting conversion circuit to power the electronic paper, combined with a waterproof and scratch-resistant film to protect the electronic paper, thus achieving passive driving display and eliminating the need for a charging port.

Benefits of technology

It achieves better sealing performance and environmental protection, preventing water from entering the cup and damaging electronic components, thus improving the cup's sealing and environmental friendliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention addresses the problem of existing smart water bottles having built-in batteries, which negatively impact the overall sealing performance of their charging ports. It provides a passive e-reader water bottle, comprising a water bottle and a lid, which are detachably connected. It also includes a functional circuit module, electronic paper, and a sensing module. The electronic paper and sensing module are connected to the functional circuit module. The sensing module includes an NFC antenna and an NFC energy harvesting and conversion circuit, both electrically connected and mounted on the circuit board of the functional circuit module. The electronic paper and functional circuit module are integrated into the lid or the water bottle. This design facilitates better sealing performance and is environmentally friendly.
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Description

Technical Field

[0001] This utility model relates to the field of water cup technology, and in particular to a passive e-book water cup. Background Technology

[0002] Existing smart water bottles typically have built-in power supplies and are charged via external, exposed or sealed interfaces to ensure the operation of some electronic components, as shown in the patent with authorization publication number CN220158008U. However, the inside of the water bottle is used to hold water, and the bottle needs to be cleaned frequently. This makes it extremely easy for water to enter through the external charging port, damaging the internal electronic components. Therefore, there is a need for a passive e-reader water bottle that is resistant to water ingress. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies and provide a passive e-book water cup.

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

[0005] A passive e-book water cup includes a water cup and a lid, which are detachably connected. It also includes a functional circuit module, electronic paper, and a sensing module. The electronic paper and sensing module are respectively connected to the functional circuit module. The sensing module includes an NFC sensing antenna and an NFC energy harvesting and conversion circuit, which are electrically connected and both are mounted on the circuit board of the functional circuit module. The electronic paper and the functional circuit module are mounted together on the lid or the water cup.

[0006] Furthermore, the electronic paper is disposed on the side of the cup or on the top of the cup lid.

[0007] Furthermore, the functional circuit module is located in the space between the bottom of the cup and the inner liner or inside the cup lid.

[0008] Furthermore, it also includes a temperature sensor, which is connected to the functional circuit module.

[0009] Furthermore, the functional circuit module is located in the space between the bottom of the cup and the inner liner, and the sensor is located on the side closer to the inner liner of the cup.

[0010] Furthermore, the functional circuit module is located inside the cup lid, and the sensor is correspondingly located inside the cup lid near the water cup.

[0011] Furthermore, the electronic paper is embedded in a water cup or cup lid, with the outer surface of the electronic paper flush with the surface of the water cup or cup lid.

[0012] Furthermore, the NFC sensing antenna is disposed on the electronic paper, located on the side of the electronic paper closest to the external space.

[0013] Furthermore, a waterproof and scratch-resistant film is fixedly disposed on the outer side of the electronic paper, and the film is adhered and fixed to the surface of the electronic paper.

[0014] The beneficial effects of this utility model are as follows:

[0015] By setting up an NFC-based sensing module, along with electronic paper and functional circuit modules, a passive-driven display can be achieved, freeing it from the limitations of traditional batteries. This not only facilitates better sealing performance but also has an environmentally friendly effect.

[0016] By attaching a fixing film to the outside of the electronic paper, the electronic paper is protected and waterproofed. Attached Figure Description

[0017] Figure 1 This is a perspective view of the functional circuit module of Embodiment 1 installed inside the cup lid;

[0018] Figure 2 This is a perspective view of the functional circuit module of Embodiment 1 installed inside the water cup;

[0019] Figure 3 This is a hardware topology diagram of Example 1;

[0020] Figure 4 This is a schematic diagram of energy / data transmission in Example 1;

[0021] Figure 5 This is a schematic diagram of the circuit connection relationship in Example 1.

[0022] Attached diagram labels: 1. Water cup; 2. Cup lid; 3. Functional circuit module; 4. Sensor; 5. Electronic paper. Detailed Implementation

[0023] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the figures only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] Example 1:

[0026] like Figures 1-5 As shown, a passive e-reader water cup includes a cup 1 and a lid 2, which are detachably connected. It also includes a functional circuit module 3, an electronic paper 5, and a sensing module. The electronic paper 5 and the sensing module are connected to the functional circuit module 3. The sensing module includes an NFC sensing antenna and an NFC energy harvesting and conversion circuit. The NFC sensing antenna and the NFC energy harvesting and conversion circuit are electrically connected and both are mounted on the circuit board of the functional circuit module 3. The electronic paper 5 is mounted on either the lid 2 or the cup 1 along with the functional circuit module 3. In implementation, the NFC sensing antenna can sense changes in the NFC magnetic field of external devices, such as mobile phones. The NFC energy harvesting and conversion circuit converts the sensed electromagnetic field energy into electrical energy using magnetic energy conversion technology, which is used to momentarily power the electronic paper 5 and refresh the displayed content. It should be noted that the NFC technology and NFC-related components used in this application are existing technologies or devices. In this example, since there is no built-in power supply or exposed charging port, the sealing performance can be guaranteed, preventing water ingress.

[0027] The electronic paper 5 is disposed on the side of the cup 1 or the top of the lid 2; a waterproof and scratch-resistant film is also fixedly disposed on the outer side of the electronic paper 5, and the film is adhered and fixed to the surface of the electronic paper 5. The electronic paper 5 is embedded in the cup 1 or the lid 2, and the outer surface of the electronic paper 5 is flush with the surface of the cup 1 or the lid 2. In this example, the NFC sensing antenna is disposed on the electronic paper 5, located on the side of the electronic paper 5 closer to the external space, so as to facilitate sensing the NFC signal of the external device; in some other embodiments, the NFC sensing antenna can also be disposed on the functional module circuit, which will result in higher circuit integration, but when using it, the external NFC device needs to be brought close to the functional module circuit to complete the NFC sensing. It should be noted that the electronic paper 5 contains electronic ink composed of countless tiny transparent particles. The particles are formed by many black and white particles with positive and negative charges sealed in internal liquid microcapsules. The charged particles of different colors will move in different directions due to the different applied electric fields, presenting a black or white effect on the display screen. It does not consume power when static, and only consumes power when refreshing the display; the electronic paper 5 is an existing device.

[0028] The functional circuit module 3 is located in the space between the bottom of the water cup 1 and the inner liner or inside the cup lid 2. In this example, the functional circuit module 3 is fixed inside the water cup 1 or the cup lid 2 by screws or buckles.

[0029] It also includes a temperature sensor 4, which is connected to the functional circuit module 3. When the functional circuit module 3 is located in the space between the bottom of the cup 1 and the inner liner, the sensor 4 is located on the side closer to the inner liner of the cup 1. When the functional circuit module 3 is located inside the lid 2, the sensor 4 is located inside the lid 2 near the cup 1. The purpose is to keep the sensor 4 close to the inside of the cup 1 so that the temperature inside the cup 1 can be detected more accurately.

[0030] according to Figure 5 As shown, the energy collected by the NFC sensing antenna is converted into direct current after passing through a π-type matching network and a rectifier circuit. This rectified current then passes through an ESD protection circuit, typically a TVS diode, to transmit it to the functional circuit module. An energy storage capacitor, connected to the functional circuit module, is also included to temporarily store energy, providing the power required for the electronic paper display for a specific period.

[0031] During implementation, by setting up an NFC-based sensing module, in conjunction with the electronic paper 5 and the functional circuit module 3, a passive drive display is achieved, freeing it from the limitations of traditional batteries. This facilitates better sealing performance and is also environmentally friendly. By attaching a fixing film to the outside of the electronic paper 5, the electronic paper 5 is protected and waterproofed.

[0032] The above description is merely a specific example of this utility model and does not constitute any limitation on this utility model. Obviously, those skilled in the art, after understanding the content and principle of this utility model, may make various modifications and changes in form and details without departing from the principle and structure of this utility model. However, these modifications and changes based on the concept of this utility model are still within the protection scope of the claims of this utility model.

Claims

1. A passive e-book water cup, comprising a water cup (1) and a lid (2), wherein the water cup (1) and the lid (2) are detachably connected; characterized in that, It also includes a functional circuit module (3), an electronic paper (5), and a sensing module; wherein the electronic paper (5) and the sensing module are respectively connected to the functional circuit module (3); the sensing module includes an NFC sensing antenna and an NFC energy harvesting and conversion circuit, the NFC sensing antenna and the NFC energy harvesting and conversion circuit are electrically connected, and both are set on the circuit board of the functional circuit module (3); the electronic paper (5) and the functional circuit module (3) are set together on the cup lid (2) or the water cup (1).

2. The passive e-book water cup according to claim 1, characterized in that, The electronic paper (5) is disposed on the side of the water cup (1) or on the top of the cup lid (2).

3. The passive e-book water cup according to claim 2, characterized in that, The functional circuit module (3) is located in the space between the bottom of the water cup (1) and the inner liner or inside the cup lid (2).

4. The passive e-book water cup according to claim 1, characterized in that, It also includes a temperature sensor (4), which is connected to the functional circuit module (3).

5. A passive e-book water cup according to claim 4, characterized in that, The functional circuit module (3) is located in the space between the bottom of the water cup (1) and the inner liner, and the sensor (4) is located on the side close to the inner liner of the water cup (1).

6. A passive e-book water cup according to claim 4, characterized in that, The functional circuit module (3) is located inside the cup lid (2), and the sensor (4) is located inside the cup lid (2) near the water cup (1).

7. The passive e-book water cup according to claim 1, characterized in that, The electronic paper (5) is embedded in the water cup (1) or the cup lid (2), and the outer surface of the electronic paper (5) is flush with the surface of the water cup (1) or the cup lid (2).

8. A passive e-book water cup according to claim 1, characterized in that, The NFC sensing antenna is disposed on the electronic paper (5) and located on the side of the electronic paper (5) closer to the external space.

9. A passive e-book water cup according to claim 1, characterized in that, A waterproof and scratch-resistant film is also fixedly installed on the outside of the electronic paper (5), and the film is pasted and fixed on the surface of the electronic paper (5).