Pet feeder
By detecting a pet's approach using proximity sensors and detection coils, and controlling the opening of the cover using a stepper motor, the pet feeder enables convenient feeding and intelligent management. This solves the problems of limited feeding posture, single power supply, and preservation, and improves the convenience and intelligence of the pet feeder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANKONG INNOVATION SCI & TECH SHENZHEN CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-19
AI Technical Summary
Existing pet feeders have problems such as limited eating posture, lack of support for food preservation, single power supply method, and lack of intelligent interaction functions.
A pet feeder has been designed, which uses a proximity sensor and detection coil to detect the pet's approach, controls the opening of the cover via a stepper motor, supports dual power supply, has a built-in Bluetooth chip for smart interaction, and comes with an ice box to keep food fresh. It also supports authorized pendants and App management.
Pets can eat without having to stick their heads inside the feeder, reducing the burden of behavioral training, ensuring food freshness, providing stable power supply and intelligent management, supporting feeding at specific times, and preventing cross-infection.
Smart Images

Figure CN224250414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a feeder, specifically a pet feeder, and belongs to the field of pet equipment technology. Background Technology
[0002] With the expansion of the pet market and the rapid increase in the number of pet owners, solving the problems pet owners face regarding their pets' basic needs for food, clothing, shelter, and transportation has become an urgent need for many pet owners. Pet feeders, as an important part of pets' basic needs, have gradually gained popularity among pet owners.
[0003] Pet feeders typically allow pets to be fed at set times and in measured amounts, providing convenience for pet owners. Currently, some pet feeders on the market use a bottom-feeding design, meaning the food outlet is located directly below the device. Pets need to stick their heads into the feeder to eat. Some cautious or larger pets may be unwilling to stick their heads into the enclosed space to eat, leading to refusal to eat. This requires owners to spend extra time on behavioral training.
[0004] Therefore, a pet feeder is proposed here. Summary of the Invention
[0005] This utility model proposes a pet feeder to solve the problems of existing pet feeders, such as limited feeding posture, lack of support for food preservation, single power supply method, and lack of intelligent interactive function.
[0006] This utility model is achieved through the following technical solution: a pet feeder, including a bottom shell and a top shell mounted on top of the bottom shell, as well as an authorized pendant, a bracket, and upper and lower coil shells. The bracket and upper and lower coil shells are both located above the top shell, and the back of the upper and lower coil shells are connected to the top shell through the bracket. An infrared window is fixedly installed on the other side of the bottom shell relative to the bracket. A proximity sensor is installed behind the infrared window, and the detection coil is installed inside the upper and lower coil shells. By arranging the proximity sensor in front of the feeder, the pet only needs to approach the front of the device to activate the feeder to open the lid and eat, reducing the burden of behavioral training.
[0007] Furthermore, a control motherboard is installed inside the bottom shell, and the control motherboard is electrically connected to a stepper motor, Bluetooth chip, proximity sensor, detection coil, power supply interface, and battery pack. The power supply interface and battery pack are connected in parallel for dual power supply. A battery compartment is opened inside the bottom shell, and the battery pack is installed inside the battery compartment. A battery cover is snapped onto the surface of the battery compartment. There are two sets of the battery compartment, battery pack, and battery cover, which are symmetrically arranged inside the bottom shell. The power supply interface is installed on the inner wall of the bottom shell and is electrically connected to an external power source. The power supply interface is a Type-C interface. The stepper motor, detection coil, and proximity sensor are all electrically connected to the battery pack and the power supply interface. While supporting 5V 1A Type-C interface DC power supply, the battery compartment is also retained to support mobile use. The dual power supply system meets the needs of multiple scenarios and reduces the cost of use.
[0008] Furthermore, the detection coil is used to detect the approach or departure of the authorized pendant; the authorized pendant includes an upper shell, a lower shell, and an induction coil. The induction coil is installed inside the lower shell and fixed by the upper shell. The detection coil is used to detect the approach or departure of the induction coil. The detection coil monitors in real time whether a pet wearing the authorized pendant is approaching the device. If an authorized pet is detected, the device's control circuit controls a stepper motor to rotate, opening the lid to allow the pet to eat.
[0009] Furthermore, a feeding bowl is provided above the dough, and a cover plate that rotates under the control of a stepper motor is attached to the surface of the feeding bowl. An ice box for cooling the feeding bowl is also provided below the feeding bowl. The ice box is installed at the bottom of the dough, and the feeding bowl is attached to the upper surface of the ice box. The ice box can be installed and used after being refrigerated. An ice box installation position is provided inside the feeder, and an ice box is randomly provided. The ice box can be installed and used after being refrigerated, effectively extending the freshness time of wet food.
[0010] Furthermore, the stepper motor is installed inside the faceplate, and a rotating shaft is fixed to the output end of the stepper motor. A buckle is fixed to one side of the cover plate, and a slot corresponding to the buckle is opened on the surface of the rotating shaft. The cover plate is fixed to the side of the rotating shaft by the buckle and the slot. The control circuit of the device controls the stepper motor to rotate, and the stepper motor drives the rotating shaft to rotate, thereby opening the cover plate and allowing the pet to eat.
[0011] This utility model provides a pet feeder with the following advantages: By placing a proximity sensor in front of the feeder, the pet only needs to approach the front of the device to activate the feeder to open the lid and eat, reducing the burden of behavioral training. Furthermore, through a built-in Bluetooth chip, it can connect to a smartphone app to synchronously record eating behavior, making it convenient for users to view and manage. At the same time, the detection coil monitors the authorized pendant in real time, which can restrict eating to pets wearing authorized RFID tags. Moreover, users can set the allowed feeding time period through the app, so that pets wearing authorized RFID tags can only be fed during specific time periods. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0013] Figure 2 This is a schematic diagram of the structure of the present invention in its disassembled state;
[0014] Figure 3 This is a schematic diagram of the cover plate and rotating shaft in this utility model;
[0015] Figure 4 This is a schematic diagram of the bottom shell and the top shell of this utility model;
[0016] Figure 5 This is a schematic diagram of the structure of the authorized pendant in this utility model.
[0017] Explanation of reference numerals in the attached diagram: 1. Bottom shell; 101. Battery compartment; 102. Battery pack; 103. Battery cover; 104. Power supply interface; 105. Infrared window; 106. Button; 2. Front shell; 3. Bracket; 4. Upper and lower coil shells; 401. Detection coil; 5. Cover plate; 501. Buckle; 6. Ice box; 7. Stepper motor; 8. Shaft; 801. Slot; 9. Food bowl; 10. Authorized pendant; 1001. Upper pendant shell; 1002. Induction coil; 1003. Lower pendant shell. Detailed Implementation
[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0019] Please see Figures 1-5The present invention proposes the following implementation scheme: A pet feeder includes a bottom shell 1 and a top shell 2 installed on top of the bottom shell 1, as well as an authorized pendant 10 worn on the pet, a bracket 3, and upper and lower coil shells 4. The bracket 3 and the upper and lower coil shells 4 are both located on top of the top shell 2, and the back of the upper and lower coil shells 4 are connected to the top shell 2 through the bracket 3. An infrared window 105 is fixedly installed on the other side of the bottom shell 1 relative to the bracket 3. A proximity sensor is installed on the back side of the infrared window 105, and a detection coil 401 is installed inside the upper and lower coil shells 4. By arranging the proximity sensor in front of the feeder, the pet only needs to approach the front of the device to activate the feeder to open the lid and eat, reducing the burden of behavioral training.
[0020] The aforementioned bottom shell 1 houses a control motherboard, which is electrically connected to a stepper motor 7, a Bluetooth chip, a proximity sensor, a detection coil 401, and a power supply device. The power supply device consists of a power supply interface 104 and a battery pack 102, which are connected in parallel as a dual-power supply. A battery compartment 101 is located inside the bottom shell 1, with the battery pack 102 installed inside. A battery cover 103 is snapped onto the surface of the battery compartment 101. There are two sets of battery compartments 101, battery packs 102, and battery covers 103, symmetrically arranged inside the bottom shell 1. The power supply interface 104 is installed on the inner wall of the bottom shell 1 and is electrically connected to an external power source. The power supply interface 104 is a Type-C interface. The stepper motor 7, detection coil 401, and proximity sensor are all electrically connected to the battery pack 102 and the power supply interface 104. While supporting 5V 1A Type-C DC power supply, the battery compartment 101 is also retained for mobile use.
[0021] It should be noted that under normal operating conditions, the pet feeder prioritizes a 5V 1A DC power supply via a Type-C interface. In the event of a power outage or other unforeseen circumstances that interrupt the external power supply, the control board will immediately trigger an automatic switching mechanism to seamlessly connect to the battery pack 102 power supply mode, ensuring the feeder continues to operate stably and preventing interruptions in pet feeding due to power issues. This effectively guarantees the pet's daily dietary needs and enhances the convenience and stability of the product.
[0022] The battery pack 102 can be a rechargeable battery (such as a lithium battery). When the device is powered by a normal external power supply (Type-C interface 5V1A DC power supply), the power management module of the control motherboard will charge the battery pack 102 and monitor the power and charging status in real time; or it can be a non-rechargeable battery (such as a dry cell battery).
[0023] The aforementioned detection coil 401 is used to detect the approach or departure of the authorized pendant 10. The authorized pendant 10 includes an upper pendant shell 1001, a lower pendant shell 1003, and an induction coil 1002. The induction coil 1002 is installed inside the lower pendant shell 1003 and fixed by the upper pendant shell 1001. The detection coil 401 is used to detect the approach or departure of the induction coil 1002. The detection coil 401 monitors in real time whether a pet wearing the authorized pendant 10 is approaching the device. If an authorized pet is detected, the device's control circuit will control the stepper motor 7 to rotate to open the cover, allowing the pet to eat.
[0024] Above the aforementioned food container 2, there is a food bowl 9. The surface of the food bowl 9 is covered with a cover plate 5 that is controlled to rotate by a stepper motor 7. Below the food bowl 9, there is an ice box 6 for cooling the food bowl 9. The ice box 6 is installed at the bottom of the food container 2, and the food bowl 9 is attached to the upper surface of the ice box 6. The ice box 6 can be installed and used after being refrigerated. An ice box 6 installation position is set inside the feeder. The ice box 6 can be installed and used after being refrigerated, which effectively extends the freshness time of wet food.
[0025] The aforementioned stepper motor 7 is installed inside the housing 2, and the output end of the stepper motor 7 is fixed with a rotating shaft 8. A buckle 501 is fixed on one side of the cover plate 5, and a slot 801 corresponding to the buckle 501 is opened on the surface of the rotating shaft 8. The cover plate 5 is fixed to the side of the rotating shaft 8 by the buckle 501 and the slot 801. The control circuit of the device controls the stepper motor 7 to rotate, and the stepper motor 7 drives the rotating shaft 8 to rotate, thereby opening the cover plate 5 and allowing the pet to eat.
[0026] In use, the device is first placed in a designated location and powered on by connecting it to an external power source via the Type-C power interface 104. Then, the device is connected to a smartphone app via its built-in Bluetooth chip for setup. During the permitted feeding period, when a pet approaches the device from the front, the proximity sensor is triggered. The device's control board then powers the RFID detection coil 401, which is built into the upper and lower coil housings 4. The detection coil 401 begins real-time monitoring to see if a pet wearing the authorized pendant 10 is approaching the device. Once an authorized pet is detected, the device's control board controls the stepper motor 7 to rotate, which in turn drives the rotating shaft 8 to open the cover 5, allowing the pet to eat.
[0027] The authorized pendant for pets supports two authorization methods. The first is authorization via an app. Users simply add the new device in the smartphone app, following the on-screen prompts, and bring the authorized pendant close to the device to complete the authorization. The second authorization method is through a button located on the outer surface of the casing. The button is also electrically connected to the control board. When the button is pressed, the device enters authorization mode. At this time, bringing the pendant close to the device completes the authorization setup.
[0028] Meanwhile, the device's control board is equipped with a Bluetooth chip, which records the pet's feeding time, feeding duration, and feeding frequency. When the user connects the device to the app via Bluetooth, the feeding data will be synchronized to the app so that the user can understand the pet's feeding situation.
[0029] It should be noted that users can connect to the device via the app and set the allowed feeding time periods. Once set, the proximity sensor will not work if the pet is not within the allowed feeding time periods. The proximity sensor will only work when the pet approaches the device during the allowed feeding time periods.
[0030] When a pet is sick, a veterinarian may require medication or prescription food to be given within a specified time period. Similarly, users can connect their devices via an app to set permitted feeding times. Once set, if the pet is not within the permitted feeding time, the cover 5 will not open even if the device detects the authorized pet nearby.
[0031] In addition, when multiple pets have different foods and cannot eat each other, you can prepare multiple devices and authorize each pet to use its corresponding device. This way, each pet can have its own bowl, which can prevent cross-infection caused by pet B accidentally eating food from pet A when pet A is sick.
[0032] In addition, during the feeding process, the device records the feeding time, duration, and frequency of each pet based on the information from the RFID-detected pendant, and synchronizes this information to the app. Once the pet finishes eating and leaves, the RFID sensor detects the pendant's departure, and a stepper motor closes the lid. If other pets approach during the feeding period, the above process is repeated; otherwise, the device enters a low-power standby mode.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A pet feeder, comprising a bottom shell (1) and a top shell (2) mounted on top of the bottom shell (1), characterized in that: It also includes an authorized pendant (10), a bracket (3), and upper and lower coil shells (4). The bracket (3) and upper and lower coil shells (4) are both located above the face shell (2). The back of the upper and lower coil shells (4) is connected to the face shell (2) via the bracket (3). The bottom shell (1) is equipped with a control motherboard, and the control motherboard is electrically connected to a stepper motor (7), a Bluetooth chip, a proximity sensor, a detection coil (401), and a power supply device. The power supply device is a parallel dual power supply mode. The detection coil (401) is used to detect the proximity or distance of the authorized pendant (10). A food bowl (9) is also provided above the face shell (2). The surface of the food bowl (9) is covered with a cover plate (5) that is controlled to rotate by the stepper motor (7).
2. A pet feeder according to claim 1, characterized in that: The stepper motor (7) is installed inside the faceplate (2), and the output end of the stepper motor (7) is fixed with a rotating shaft (8). A buckle (501) is fixed on one side of the cover plate (5). A slot (801) corresponding to the buckle (501) is opened on the surface of the rotating shaft (8). The cover plate (5) is fixed to the side of the rotating shaft (8) by the buckle (501) and the slot (801).
3. A pet feeder according to claim 1, characterized in that: Below the food bowl (9) is an ice box (6) for cooling the food bowl (9). The ice box (6) is installed at the bottom of the shell (2). The food bowl (9) is attached to the upper surface of the ice box (6). The ice box (6) can be installed and used after refrigeration.
4. A pet feeder according to claim 1, characterized in that: The power supply device is a dual power supply mode with the power supply interface (104) and the battery pack (102) connected in parallel; the bottom shell (1) has a battery compartment (101) inside, the battery pack (102) is installed inside the battery compartment (101), and the surface of the battery compartment (101) is snapped with a battery cover (103). There are two sets of the battery compartment (101), the battery pack (102) and the battery cover (103), and they are symmetrically arranged inside the bottom shell (1).
5. A pet feeder according to claim 4, characterized in that: The power supply interface (104) is installed on the inner wall of the bottom shell (1). The power supply interface (104) is electrically connected to an external power source. The power supply interface (104) is a Type-C interface. The stepper motor (7), the detection coil (401) and the proximity sensor are all electrically connected to the battery pack (102) and the power supply interface (104).
6. A pet feeder according to claim 1, characterized in that: An infrared window (105) is fixedly installed on the other side of the bottom shell (1) relative to the bracket (3). The proximity sensor is installed on the back side of the infrared window (105), and the detection coil (401) is installed inside the upper and lower shells (4) of the coil.
7. A pet feeder according to claim 1, characterized in that: The authorized pendant (10) includes an upper pendant shell (1001), a lower pendant shell (1003), and an induction coil (1002). The induction coil (1002) is installed inside the lower pendant shell (1003) and fixed by the upper pendant shell (1001). The detection coil (401) is used to detect the proximity or distance of the induction coil (1002).