Refrigerated pet feeder

Abstract

The utility model relates to a refrigerating pet feeder which comprises a rotating tray, and the rotating tray comprises a plurality of food bowls. An insulating cover covering the rotating tray, wherein the insulating cover includes an opening of substantially the same size and shape as one of the food bowls; the motor is used for rotating the rotating tray; the cooling plate is located below the rotating tray and is in thermal contact with the food bowls, the cooling plate comprises a notch, and the notch is at least as large as one of the food bowls; a cooling element comprising a cold side and a hot side wherein the cold side of the cooling element is thermally connected to the cooling plate; and a cooling device positioned in such a way as to cool the hot side of the cooling element.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic refrigerated pet feeders, in particular to a refrigerated pet feeder. Background Art

[0002] Cats and dogs are extremely popular pets, with 70% of households in the United States having at least one pet. While pets provide a great deal of enjoyment and emotional support to their owners, one of the issues associated with pet ownership is how to care for them when the owner is not at home. While dogs require regular walks and plenty of human attention, cats can usually easily tolerate being left alone at home for a few days as long as they have food and water. Cats are very territorial animals and prefer to stay in a familiar territory rather than being surrounded by unfamiliar animals in a boarding facility. In addition, 27% of pet owners in the United States are baby boomers, who are prone to strength deficits as they age and may have difficulty handling pet feeding tasks on a daily basis. Because of this, many cat owners obtain automatic refrigerated pet feeders to feed their cats food at regular intervals over several days when the owner is away or otherwise unable to feed the pet. Typically, such devices are filled with multiple portions of non-perishable dry food and are configured to deliver multiple portions of food to the pet at regular intervals.

[0003] One problem associated with such refrigerated pet feeders is how to provide pets with perishable food that needs to be refrigerated because such food is healthier for pets; for some pets with compromised health, perishable food may be the only option. There is some prior art in this area; in some cases, ice packs are used to cool the food, while some prior art devices use heat pumps to blow cold air onto the food. This causes condensation, which can be messy if left unattended for several days and causes an increased evaporation rate of the moisture in the food, more condensation in the feeder, and a drainage system is needed to drain it. Ice packs also need to be changed regularly and do not keep the food at the right temperature. In addition, cats are very sensitive to the temperature of wet food given to them and will not want to eat if it is too cold.

[0004] There is a need for a refrigerated pet feeder that provides perishable food to a pet that is kept refrigerated until served to the pet and that avoids excessive condensation and moisture loss in the food. There is also a need for a pet feeder that provides perishable food to a pet at an acceptable temperature for multiple days. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem to be solved by the utility model is to provide a refrigerated pet feeder, which can supply perishable food to pets for many consecutive days without spoiling; it can provide perishable food to pets at a temperature suitable for pets; it can refrigerate perishable food for many days until it is ready to be eaten without causing excessive condensation and moisture loss of the food.

[0007] (II) Technical solution

[0008] The solution adopted by the utility model to solve the above technical problems is a refrigerated pet feeder, including a rotating tray of multiple food bowls, an insulating cover covering the rotating tray, a motor for rotating the tray, and a cooling plate located below the rotating tray and in thermal contact with the food bowls, wherein the insulating cover has an opening for one of the food bowls to be opened. The cooling plate has a notch below one of the food bowls, which is the bowl currently allocated to the pet; this ensures that the food provided to the pet is not too cold. The cooling plate is cooled by a cooling element, which includes a hot side and a cold side; the cold side is connected to the cooling plate. The hot side of the cooling element is cooled by a separate cooling device, such as a cooling fan or a water cooling system.

[0009] In one embodiment, the cooling element is located on the underside of the cooling plate and the food bowl is located above it.

[0010] In one embodiment, the heater is located in the indentation below the bowl currently being dispensed. The heater may be a separate heater, or may be the hot side of a cooling element.

[0011] In one embodiment, the cooling plate is made of aluminum. It may also be made of copper, steel, stainless steel, thermally conductive polymers, or ceramics. In one embodiment, the thickness of the cooling plate is 6 mm. The cooling plate may also include a low friction thermally conductive coating applied to its top side to make the bowl slide more easily. The cooling plate preferably has a uniform temperature with any temperature difference between its hottest and coldest points being less than 10°C.

[0012] The hot side of the cooling element is cooled by a cooling device (such as a cooling fan or a water cooling system). There may be a heat sink connected to it to make the cooling more efficient.

[0013] In one embodiment, the cooling device cools the hot side of the cooling element to about 30°C.

[0014] Each food bowl may have a bottom side made of a conductive material to make refrigeration of the food easier. In one embodiment, insulating material may be placed between the food bowls. The food bowls may all be made of one piece of material or may be separate bowls connected to a rotating shaft using pins.

[0015] The refrigerated pet feeder of the utility model may also include a processor and a memory and a communication interface. This allows the refrigerated pet feeder to be remotely controlled via a smartphone or similar device. The refrigerated pet feeder may also include at least one digital scale for measuring the weight of food, or at least one depth sensor for measuring the volume of food.

[0016] In one embodiment, the refrigerated pet feeder also includes an audible or visible alarm, such as a blue light.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model designs a refrigerated pet feeder.

[0019] (1) The utility model can continuously supply perishable food to pets for many days without spoiling;

[0020] (2) The utility model is capable of providing perishable food to pets at a temperature suitable for pets;

[0021] (3) The present invention is able to keep perishable food refrigerated for multiple days until it is ready to be eaten without causing excessive condensation and moisture loss in the food. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 An embodiment of the invention is shown in a fully assembled state.

[0024] Figure 2 An embodiment of the present invention is shown, in which the insulating cover is removed.

[0025] Figure 3 An embodiment of the utility model is shown in which the insulating cover is removed and the tray is rotated.

[0026] Figure 4 An embodiment of the assembly of the cooling plate and the cooling device of the utility model is shown.

[0027] Figure 5 A side view showing an embodiment of an assembly of a cooling plate and a cooling device of the present invention.

[0028] Figure 6 A bottom view of the present invention is shown.

[0029] Figure 7 Views showing alternative embodiments of the present invention.

[0030] Figure 8 and Fig. 9 A view of a cooling plate using a cooling element that contacts the bowl from the top and the cooling plate from below is shown.

[0031] Fig.10 A view showing an assembly using a heater insulated from a cooling plate.

[0032] Fig.11 It shows how the food bowls can be insulated from each other by injecting an insulator material into the hollow areas of the food bowls.

[0033] Fig.12 Shown is a graded edge for reducing beard fatigue.

[0034] Fig.13 An improvement is shown that makes it more accessible to pet owners with insufficient strength.

[0035] The corresponding component names of the various figure marks in the figure are: 100, rotating tray; 10, food bowl; 11, pin; 12, hollow area; 200, insulating cover; 20, opening; 21, handle; 22, inclined edge; 300, motor; 400, cooling plate; 40, notch; 500, cooling element; 51, insulator; 600, cooling fan; 700, radiator; 800, insulating shell; 80, cutout; 900, heat expander; 101, heater. DETAILED DESCRIPTION

[0036] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0039] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0040] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0041] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0042] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0043] like Figure 1As shown. The refrigerated pet feeder of the present invention includes a rotating tray 100 covered with an insulating cover 200. The rotating tray 100 includes a plurality of food bowls 10 in which perishable food can be stored; preferably, the size of the food bowl 10 is suitable for providing a portion of food to the pet. The insulating cover 200 includes an opening 20 on one of the food bowls 10 so that the pet can only get one portion of food at a time. The insulating cover 200 is preferably strong enough so that the pet will not damage or puncture it, and is preferably an insulating cover 200 that can keep the rest of the food refrigerated. The insulating area of ​​the insulating cover 200 can be made of a single material or layers of different materials; for example, a foam plastic material encapsulated in the insulating cover 200. The rotating tray 100 can rotate freely about its axis so that different food bowls 10 can be provided to the pet regularly, timed, or on demand. The insulating cover 200 also includes an insulating shell 800 that covers the sides of the refrigerated pet feeder to prevent pets from approaching the feeder and maintain the proper temperature of the food; the cutout 80 provides ventilation for the cooling fan 600 located on the lower side of the refrigerated pet feeder. The lower compartment of the device containing the cooling device and the cooling fan 600 is hotter than the cooled food compartment. In one embodiment, insulating material is also used to minimize unintended heat transfer between the upper compartment and the lower compartment.

[0044] Figure 2 FIG. 2 shows an embodiment of the present invention with the insulating cover 200 removed. Figure 2 As shown, the rotating tray 100 includes a plurality of food bowls 10. Although six food bowls 10 are shown in the figure, any other number of food bowls 10 may also be included in the utility model. In addition, although the food bowls 10 shown in the figure are shaped like a fan, they may also be any other shape, including a circle or a rectangle, and may have rounded corners to make it easier for pets to get food. The bottom side of each food bowl 10 is preferably flat. In one embodiment, each food bowl 10 is made of plastic or any other food-safe material; in one embodiment, each food bowl 10 is made of a heat-conductive material to make the refrigeration of food more effective. In an alternative embodiment, the bottom side of each food bowl 10 is made of a heat-conductive material, or the bottom side of each food bowl 10 includes a heat-conductive material; and the side separating the food bowls 10 is made of an insulating material, or includes an insulating material such as foam plastic. This allows each portion of food to be cooled by the cooling plate 400 while allowing the currently provided food bowl 10 to heat up to ambient temperature. In an alternative embodiment, the entire rotating tray 100 is made of the same material. The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0045] One of the advantages of using a rotating tray 100 is that the position of the dispensed food bowls 10 is fixed. This allows the pet to easily access each food bowl 10. In existing designs that use a static tray and a rotating lid, it may be difficult for the pet to reach at least one bowl when the machine is close to a wall. This can cause a number of problems, including the pet's inability to access food, digestive upset or whisker pressure due to improper feeding positioning, and increased potential for injury or machine failure because the position of the static tray may encourage the animal to walk on the machine to reach the bowl. The rotating tray 100 eliminates all of these problems.

[0046] The rotating tray 100 is connected to the motor 300 and the controller so that it can rotate to provide a new bowl of food to the pet periodically, timed or on demand. In one embodiment, the controller is connected to a communication interface that enables the controller to communicate directly or indirectly with a mobile device using a WiFi hub, or remotely through a cloud service to receive control signals from it or send data to it.

[0047] like Figure 3 As shown, there is a cooling plate 400 under the rotating tray 100. In one embodiment, the cooling plate 400 is in thermal contact with the rotating tray 100 to improve refrigeration efficiency; in an alternative embodiment, the rotating tray 100 is placed close to the plate without direct contact. In this case, the cooling plate 400 needs to be kept at a lower temperature to compensate for the temperature drop of the air filling gap. In another embodiment, the gap between the food bowl 10 and the cooling plate 400 can be filled with water or other liquids with a thermal conductivity higher than the thermal conductivity of air to improve efficiency. The cooled cooling plate 400 is maintained at a temperature that enables it to cool the food bowl 10 to a safe temperature, thereby enabling multi-day storage of food portions. The thickness of the cooling plate 400 is sufficient to keep the cooling plate 400 at a uniform temperature. This uniform temperature eliminates the need for the cooling element 500 to operate at a temperature far below the desired food temperature and contributes to the efficiency and cooling power of the cooling element 500. In a preferred embodiment, the cooling plate 400 has sufficient thermal mass to keep the temperature difference between its coldest and hottest points less than 10°C. In one embodiment, the cooling plate 400 is 6 mm thick and made of aluminum, but other thicknesses and materials are also included in the utility model, as long as the cooling plate 400 can maintain a uniform temperature throughout its entire area. In one embodiment, the cooled cooling plate 400 can reduce the temperature of the food to below 4°C, while the cooling plate 400 itself remains above freezing. This means that there is almost no ice formation. Since ice formation will reduce the efficiency of the cooling system, the lack of ice formation will improve the thermal efficiency and mechanical reliability of the equipment.

[0048] The cooling plate 400 is made of aluminum, but may also be made of copper, steel, stainless steel, thermally conductive polymer (TCP), ceramic, or any other thermally conductive material. The cooling plate 400 does not rotate with the rotating tray 100, but remains stationary when the rotating tray 100 rotates. In one embodiment, the cooling plate 400 includes a low-friction thermally conductive coating to enable the rotating tray 100 to slide along it as it rotates; this improves the efficiency of the motor 300 and the life of the device. The low-friction thermally conductive coating is made of ceramic or PTFE. Since only one cooling plate 400 is used, this simplifies the design of the utility model and reduces its complexity and energy consumption. In addition, since conductive heat transfer is used, this reduces the amount of cold air circulating in the refrigerated pet feeder, thereby reducing the amount of condensation and eliminating the need for a drain pan. In addition, since there is no airflow, the moisture of the food can be more effectively maintained; the moisture content in pet food is critical to a healthy diet and reducing the risk of infection and disease.

[0049] In an alternative embodiment, the rotating tray 100 can be placed at a short distance from the cooling plate 400, but not in direct contact with the cooling plate 400. The gap between the rotating tray 100 and the cooling plate 400 is filled with a thin layer of air; although air does not have good thermal conductivity, the thin layer of air does not significantly affect efficiency. In another embodiment, the gap between the rotating tray 100 and the cooling plate 400 is filled with water or other thermally conductive liquid.

[0050] like Figure 3 As shown, the cooling plate 400 includes a notch 40 having a size and shape that is approximately the same as a food bowl 10 in the rotating tray 100, wherein the notch 40 is located at the same position as the opening 20 in the insulating cover 200. In alternative embodiments, the shape of the notch 40 may not match the shape of the food bowl 10. This allows the food bowl 10 currently provided to the pet to not be too cold. In one embodiment, the opening 20 in the insulating cover 200 includes a sliding cover, and the insulating cover 200 is not opened until a predetermined amount of time has passed, so that the food is not provided to the pet until the pet has time to approach the ambient temperature. In another embodiment, the sliding cover is not opened until the food reaches a specific temperature measured by a temperature sensor located in the food bowl 10 or in thermal contact with the food bowl 10.

[0051] In an alternative embodiment, if Figure 8 , Fig. 9 and Fig.10As shown, the gap 40 in the cooling plate 400 is filled by a cooling element 500 located below the food bowl 10 currently provided to the pet, and the periphery of the cooling element 500 is coated with an insulator 51, which enables the refrigerated pet feeder to heat the dispensed food faster, or to heat it to a higher temperature. In this embodiment, a thermometer can also be used to ensure that the food reaches a predetermined temperature before being provided to the pet. Since cats like food heated to around 35°C-40°C very much, the cooling element 500 can be set to heat the food to this temperature, or any other temperature preference. The cooling element 500 is preferably a Peltier element, which is mounted in such a way that the hot surface is in direct contact with the food bowl 10 and the cold surface is in direct contact with the cooling plate 400; this eliminates the need to add insulating material between the cooling element 500 and the cooling plate 400. The cooling element 500 can also be any other heater 101 capable of heating a portion of pet food as disclosed in the present application. The heater 101 is preferably thermally insulated from the cooling plate 400 to prevent excessive energy waste.

[0052] In another embodiment, instead of the notch 40 under the currently assigned food bowl 10, the cooling plate 400 has a recessed portion to accommodate the cooling element 500. In this way, the cold side of the cooling element 500 can be mounted directly on the cooling plate 400, while the heated upper side of the cooling element 500 is flush with the rest of the cooling plate 400. This means that the rotation of the food bowl 10 is not interrupted, and the cold side of the cooling element 500 can be used to help the cooling plate 400 cool.

[0053] like Figure 4 , the cooling element 500 is thermally connected to the cooling plate 400 on one side and to the heat sink 700 from the other side. In one embodiment, a thermal spreader 900, preferably on the cold side of the Peltier element, is used to create enough space between the cooling plate 400 and the heat sink 700 to allow an insulating layer to be inserted between the cooling plate 400 and the heat sink 700, such as Figure 5 As shown. One side of the heat spreader 900 is connected to the cooling plate 400, and the other side is connected to the cooling element 500. Because of the use of the cooling element 500, if ice forms in the machine, an embodiment of the present invention may include an automatic defrost mechanism - the system can reduce the power of the cooling element 500, increase the temperature of the cooling plate 400 to slightly above the freezing temperature, and let the ice melt slowly, or reverse the polarity of the cooling element 500 and heat up the cooling plate 400 to melt the ice more quickly.

[0054] Because the cooling elements 500 are inefficient, they generate a large amount of heat. Overheating can damage the device. Therefore, a cooling system is needed to cool the hot surface of the cooling element 500 to keep it at its recommended operating temperature. In addition, the cooling element 500 can only produce a certain temperature difference between its hot surface and the cold surface; therefore, cooling the hot surface causes the cold surface to cool. For example, if the cooling element 500 can produce a maximum temperature difference of 40°C and the cold side needs to operate at -2°C, the hot side temperature should not exceed 38°C. Therefore, a cooling system is needed to cool the hot side. The cooling system can be a cooling fan 600, as shown in the figure, or it can be a water cooling system, or any other system or device capable of providing cooling. In a preferred embodiment of the present invention, the hot surface should be cooled to approximately 30 degrees Celsius.

[0055] Figure 6 The underside of one embodiment of a refrigerated pet feeder of the present invention is shown in its assembled state. As shown, a cooling fan 600 is located on the underside of a cooling plate 400. The sides of the insulating shell 800 include narrow cutouts 80 to provide ventilation. The cutouts 80 are preferably narrow enough to prevent pets from approaching the fan, while also being large enough to provide adequate ventilation for the cooling fan 600. In one embodiment, a mesh is used for this purpose; in alternative embodiments, other patterns of holes are used for this purpose. In alternative embodiments, other cooling and heat exchange means may be used to cool the hot surface of the cooling element 500.

[0056] Figure 7 An alternative embodiment of the food bowls 10 is shown in which the rotating tray 100 is not used. While the rotating tray 100 is a simpler design, it requires precise manufacturing to ensure that its bottom is completely flat and that all of the food bowls 10 are in thermal contact with the cooling plate 400 at the same time, even though the rotating tray 100 can rotate. In one embodiment, the design is modified by replacing the rigid tray with multiple food bowls 10, which are attached to the rotating assembly using pins 11 as shown. This design compensates for manufacturing inaccuracies and enables better cooling of the food.

[0057] Fig.11 One embodiment of a rotating tray 100 is shown that is easier to manufacture and allows for better insulation between food bowls 10. The rotating tray 100 is made from a thin sheet of plastic material; the hollow areas 12 between the food bowls 10 are filled with insulating material to prevent the currently dispensed food bowl 10 from heating up other cold food bowls 10.

[0058] In one embodiment, the rotating tray 100 and the food bowl 10 are shallow, and the inclined edge 22 of the opening 20 in the insulating cover 200 is graduated, such as Fig.12 This prevents whisker fatigue in cats and ensures a more comfortable animal.

[0059] exist Fig.13 In the illustrated embodiment, the insulated cover 200 includes an easy-grip handle 21 to enable physically challenged pet owners to more easily refill the feeder.

[0060] In one embodiment, the food bowl 10 and pin 11 are connected to a digital scale, such as a load cell, to measure the weight of the food bowl 10 before and after food consumption. This enables the device to collect information about the weight of food dispensed and consumed. In one embodiment, a depth sensor, such as a time-of-flight sensor, is used to measure the volume of food dispensed and consumed. This information can then be stored on the device or sent to the pet owner as raw or processed data that notifies the owner of trends or even correlates the data with pet health indicators.

[0061] In one embodiment, the refrigerated pet feeder of the present invention includes an alarm to let the animal know it is time to eat. The alarm can be an audible alarm, such as a beep or a recording of the owner's voice; or a visible alarm such as a flashing light. In one embodiment, the flashing light is blue, as this is highly visible to cats and dogs. A visible alarm is helpful for pets with hearing impairments.

[0062] In one embodiment, the refrigerated pet feeder of the present invention is connected to a network, such as the Internet or a home network. This enables it to connect to the pet owner's phone and send and receive information from it. For example, the pet owner can trigger food dispensing as needed, or set a food dispensing schedule using a phone application. In other embodiments, the refrigerated pet feeder can send notifications to the user when food is dispensed, when only a preset number of food portions are left, or in the event of any malfunction of the device.

[0063] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A refrigerated pet feeder, characterized in that: include A rotating tray (100), the rotating tray (100) comprising a plurality of food bowls (10); an insulating cover (200) covering the rotating tray (100), wherein the insulating cover (200) includes an opening (20) of substantially the same size and shape as one of the food bowls (10); A motor (300) for rotating the rotating tray (100); a cooling plate (400) located below the rotating tray (100) and in thermal contact with the food bowls (10), wherein the cooling plate (400) includes a notch (40) that is at least as large as one of the food bowls (10); A cooling element (500) comprising a cold side and a hot side, wherein the cold side of the cooling element (500) is thermally connected to the cooling plate (400); A cooling device is positioned in such a way as to cool the hot side of the cooling element (500).

2. The refrigerated pet feeder according to claim 1, characterized in that: in, The cooling plate (400) comprises a top side and a bottom side; wherein the food bowl (10) is in thermal contact with the top side of the cooling plate (400); wherein the cooling element (500) is in thermal contact with the bottom side of the cooling plate (400).

3. The refrigerated pet feeder according to claim 1, characterized in that: It also includes a heater (101) located in the notch (40), wherein the heater (101) is in thermal contact with the food bowl (10) located in the rotating tray (100); wherein the heater (101) is in thermal contact with the hot side of the cooling element (500); and an insulator (51) is provided between the cooling plate (400) and the heater (101).

4. The refrigerated pet feeder according to claim 1, characterized in that: in, The cooling plate (400) is made of aluminum.

5. The refrigerated pet feeder according to claim 1, characterized in that: in, The cooling plate (400) is made of one of the following materials: copper, steel, stainless steel, thermally conductive polymer, ceramic.

6. The refrigerated pet feeder according to claim 1, characterized in that: in, The thickness of the cooling plate (400) is 6 mm; wherein the cooling plate (400) includes a low-friction thermal conductive coating applied to the top side of the cooling plate (400); wherein the temperature difference between the coldest point and the hottest point on the cooling plate (400) is less than 10°C.

7. The refrigerated pet feeder according to claim 1, characterized in that: Also included is a heat sink (700) thermally connected to the hot side of the cooling element (500).

8. The refrigerated pet feeder according to claim 1, characterized in that: in, The cooling device is a cooling fan (600) or a water cooling system; the cooling device is capable of cooling the hot side of the cooling element (500) to 30°C.

9. The refrigerated pet feeder according to claim 1, characterized in that: in, Each of the food bowls (10) comprises a bottom, wherein the bottom of each of the food bowls (10) is made of a heat-conducting material; and a heat-insulating material is arranged between every two adjacent food bowls (10).

10. The refrigerated pet feeder according to claim 1, characterized in that: in, The rotating tray (100) comprises a plurality of food bowls (10) and a rotating shaft, wherein each of the plurality of food bowls (10) is connected to the rotating shaft using a pin (11).

11. The refrigerated pet feeder according to claim 1, characterized in that: including a processor and a memory; a communication interface; also including at least one digital scale positioned to measure the weight of at least a portion of food in at least one food bowl (10); also including at least one depth sensor for measuring the volume of dispensed and consumed food; and also including at least one of the following; An audible alarm, a visible alarm; wherein the visible alarm is a blue light.

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