Pet feeding tool

Abstract

SOLUTION: To provide a pet feeding tool comprising: a housing; a food tray; a food cover; and a drive mechanism, in which, in the housing, there are provided a thermal conductive sheet, a temperature adjusting structure and a heat sink, the temperature adjusting structure includes a semiconductor cooling sheet and a control module, the semiconductor cooling sheet comprises first and second surfaces which face each other, the first surface being connected to the thermal conductive sheet, the second surface adhering to the heat sink, the control module being used for controlling cooling or heating of the first surface of the semiconductor cooling sheet, the food tray being connected into the housing and being connected to the thermal conductive sheet, the food tray having at least two food putting openings, the food cover being attached to an upper part of the food tray, the food tray having a window hole connected to the food putting openings, the drive mechanism being used for driving and rotating the food cover or the food tray.EFFECT: A pet feeding tool comprises a simplified structure, in which temperature control can be relatively precisely performed, and by rotation of a food cover of the tool, selective feeding can be achieved.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to the technical field of pet supplies, and more particularly to a pet feeder. [Background technology]

[0002] At present, pet feeders have become a common item for feeding pets, and with the continuous development of pet food, the types of pet food are also increasing. Here, pet food is mainly divided into two types: wet food and dry food. Due to the economy and convenience of dry food, most pets currently eat dry food. However, if pets continue to eat dry food for a long time, they will not drink enough water, which is detrimental to their health. Therefore, feeding wet food can provide more comprehensive nutrition to pets, and sufficient water intake is also beneficial to their health. However, wet food is prone to deterioration, so many pet owners are troubled by the long-term storage of wet food in the feeder.

[0003] Currently available feeders generally use frozen blue ice to keep wet food fresh, but this method only has a short shelf life. On the one hand, the blue ice must be frozen and then removed and placed back into the feeder every day, making the operation complicated and requiring a lot of time for maintenance. On the other hand, the use of frozen blue ice can easily cause the localized temperature of some wet foods to drop, and if the temperature is too low, it can easily cause indigestion, diarrhea, flatulence, and other problems in pets. Summary of the Invention [Problem to be solved by the invention]

[0004] The objective of the embodiment of the present invention is to provide a pet feeder that solves the technical problems that the conventional feeders use frozen blue ice to maintain freshness, which makes the operation complicated and makes some wet foods prone to becoming too cold. [Means for solving the problem]

[0005] In order to achieve the above object, the technical means adopted in the present invention includes a housing, a food dish, a food cover, and a drive mechanism. a thermally conductive sheet, a temperature adjustment structure, and a heat sink are provided within the housing, the temperature adjustment structure includes a semiconductor cooling sheet and a control module, the semiconductor cooling sheet has a first surface and a second surface arranged opposite to each other, the first surface is connected to the thermally conductive sheet, and the second surface is closely attached to the heat sink, and the control module is used to control the cooling or heating of the first surface of the semiconductor cooling sheet; The food dish is connected to the inside of the housing and to the thermally conductive sheet, and the food dish is provided with at least two food containers, and each of the food containers is used to place an item to be kept fresh; The food cover is placed over the food tray, and the food tray is provided with a window communicating with the food container, The object of the present invention is to provide a pet feeder in which the drive mechanism is provided within the housing, and a drive end of the drive mechanism is connected to the food tray, or a drive end of the drive mechanism is connected to the food cover.

[0006] Preferably, the control module comprises: a driving chip electrically connected to the semiconductor cooling sheet; a controller electrically connected to the driving chip and controlling the forward and reverse conduction of the semiconductor cooling sheet through the driving chip; a power source electrically connected to the driver chip.

[0007] Preferably, the thermally conductive sheet, the semiconductor cooling sheet, and the heat sink are located on the same plane.

[0008] Preferably, the drive mechanism comprises: a driving member provided within a housing and having the driving end; a transmission assembly disposed within the housing and transmission-connected between the food dish and the drive member, The food dish is disposed at a distance from the thermally conductive sheet.

[0009] Preferably, the transmission assembly comprises: a rotating shaft disposed within the housing along an axial direction of the housing, the rotating shaft having a first end disposed within the housing and a second end passing through the food dish and connected to the food dish; a first worm wheel coaxially mounted on a first end of the rotating shaft; a first worm disposed on one side of a rotating shaft, extending in a direction perpendicular to an axis of the rotating shaft, and meshing with the first worm wheel; a second worm wheel that is coaxially fitted on the first worm; The first worm includes a second worm that meshes with the second worm wheel and whose extending direction is perpendicular to the axis of the first worm and the axial direction of the rotation shaft, and one end of the second worm remote from the second worm wheel is coaxially connected to the driving end of the driving member.

[0010] Preferably, the food dish comprises: A main body portion in which the food bowl is provided and a connection through hole through which the second end of the rotating shaft is inserted; At least one insertion portion connected to the main body portion, extending in a direction of the rotation axis, and arranged to surround the connection through hole, An insertion slot into which the insertion portion is inserted is provided on the outer peripheral wall of the rotating shaft.

[0011] Preferably, the pet feeder further comprises a middle frame and a first insulating member; The inner frame is disposed on a side of the food tray facing the housing, a first housing cavity is formed between the inner frame and the housing, the heat sink and the semiconductor cooling sheet are both disposed within the first housing cavity, and the thermally conductive sheet is protruding from the inner frame and connected to the food tray; The first insulating member is disposed within the first accommodating cavity, and the drive mechanism is disposed on the first insulating member.

[0012] Preferably, the heat sink comprises: a conductive substrate adapted to closely adhere to the second surface of the semiconductor cooling sheet; a heat dissipation fin extending outwardly from the conductive substrate; and a cooling fan that is used to force air over the heat dissipation fins.

[0013] Preferably, the cooling fan includes a fan wheel, the housing having an air inlet and an air outlet, the air inlet being arranged parallel to an axis of the fan wheel and the air outlet being arranged at an angle to the fan wheel.

[0014] Preferably, the thermally conductive sheet comprises: a connection portion connected to the first surface of the semiconductor cooling sheet; and a bent portion extending from one end of the connection portion in a direction away from the semiconductor cooling sheet and adapted to fit snugly against the food tray.

[0015] Preferably, the pet feeder further comprises a bracket and a second insulating member, the bracket is provided in the housing, and the heat sink, the semiconductor cooling sheet, and the thermally conductive sheet are arranged on the bracket in this order; The second heat insulating member is provided between the thermally conductive sheet and the heat sink, and is further attached to the semiconductor cooling sheet.

[0016] Preferably, the pet feeder further comprises a thermally conductive block and a third insulating member; the thermally conductive block is provided between the semiconductor cooling sheet and the thermally conductive sheet, The third heat insulating member is attached to the thermally conductive block and is located between the semiconductor cooling sheet and the thermally conductive sheet.

[0017] Preferably, the bracket includes a bottom plate, at least two first side plates, and at least two second side plates; the bottom plate is provided between the second heat insulating member and the third heat insulating member, and the bottom plate is provided with a through hole through which the semiconductor cooling sheet passes and contacts the thermal conductive block; The at least two first side plates are provided on a side of the bottom plate facing the heat sink and are surrounded to form a second accommodating cavity, and a heat sink and a second insulating member are disposed in the second accommodating cavity; The at least two second side panels are provided on the side of the bottom panel facing the thermally conductive sheet and are surrounded to form a third accommodating cavity, the thermally conductive block is disposed within the third accommodating cavity, and a third insulating member is fitted to the at least two side panels. Effect of the Invention

[0018] The beneficial effects of the cooling mechanism provided by the present invention are as follows:

[0019] Firstly, the control module controls the heating or cooling of the semiconductor cooling sheet, so that the wet food can be heated or cooled, which solves the technical problem of the complicated operation caused by using frozen blue ice to preserve freshness, and is easy to operate, which can prevent the temperature of the wet food from being too high in some places or too low in others, and has a relatively good effect of preserving freshness.

[0020] Next, the feed tray or the food cover is rotated using a driving mechanism, and since the feed tray is provided with a plurality of feed containers, a specific feed container can be selectively made to correspond to the window to achieve the purpose of selective feeding. [Brief description of the drawings]

[0021] In order to more clearly describe the technical means in the embodiments of the present invention, the following will briefly describe the embodiments or the drawings necessary for the description of the prior art. Of course, the drawings in the following description are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without performing creative labor. [Figure 1] FIG. 2 is a schematic diagram of the three-dimensional structure of a pet feeder provided by an embodiment of the present invention. [Diagram 2] FIG. 2 is an exploded structural diagram of a pet feeder provided by an embodiment of the present invention. [Diagram 3] FIG. 2 is a schematic diagram of the three-dimensional structure of a driving member and a transmission assembly provided according to an embodiment of the present invention; [Figure 4] FIG. 2 is a schematic diagram of the three-dimensional structure of a food dish provided by an embodiment of the present invention. [Diagram 5] FIG. 2 is a schematic diagram of the three-dimensional structure of a middle frame provided according to an embodiment of the present invention. [Figure 6] 1 is a schematic diagram of the three-dimensional structure of a thermally conductive sheet, a semiconductor cooling sheet, a heat sink, a bracket, a first insulating member, and a second insulating member provided according to an embodiment of the present invention. [Figure 7] 1 is an exploded structural schematic diagram of a thermally conductive sheet, a semiconductor cooling sheet, a heat sink, a bracket, a first insulating member, and a second insulating member provided according to an embodiment of the present invention. FIG. [Figure 8] 1 is a schematic cross-sectional view of a thermally conductive sheet, a semiconductor cooling sheet, a heat sink, a bracket, a first insulating member, and a second insulating member provided according to an embodiment of the present invention. FIG. [Figure 9] FIG. 2 is a circuit principle diagram of a temperature adjustment structure provided by an embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] In order to make the technical problem, technical means and beneficial effects of the present invention clearer and more understandable, the present invention will be described in more detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to interpret the present invention and are not intended to limit the present invention.

[0023] It should be noted that when an element is described as being "fixed" or "disposed" on another element, it may be directly on the other element or indirectly on the other element. When an element is described as being "connected" to another element, it may be directly or indirectly connected to the other element.

[0024] In addition, the orientations or positional relationships indicated by terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate and simplify the description of the present invention, and do not indicate or imply that the devices or components shown necessarily have a specific orientation, or are constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0025] Furthermore, the terms "first" and "second" are for descriptive purposes only and should not be understood to indicate or imply a relative importance or number of the technical features depicted. Thus, a feature qualified by "first" or "second" may explicitly or implicitly include one or more of said features. In the present description, "plurality" means two or more, unless otherwise specified.

[0026] A pet feeder provided by an embodiment of the present invention will be described with reference to Figures 1 and 2. The pet feeder can hold wet food and keep the wet food fresh. Of course, dry food can also be held in the pet feeder, and is not limited thereto. The pet feeder includes a housing 2, a food dish 3, a food cover 4, and a drive mechanism 5.

[0027] 7, the housing 2 has a hollow columnar structure, and the housing 2 is provided with a thermally conductive sheet 11, a temperature adjustment structure 12, and a heat sink 13. The temperature adjustment structure 12 includes a semiconductor cooling sheet 121 and a control module 122, which are connected to each other via a line. The semiconductor cooling sheet 121 has a first surface and a second surface arranged opposite each other. The first surface of the semiconductor cooling sheet 121 is connected to the surface of the thermally conductive sheet 11, so that the cold or heat generated by the semiconductor cooling sheet 121 can be transferred through the thermally conductive sheet 11. The second surface of the semiconductor cooling sheet 121 is closely attached to the surface of the heat sink 13, so that the heat generated by the semiconductor cooling sheet 121 can be transferred through the heat sink 13. The control module 122 is used to control the cooling or heating of the first surface of the semiconductor cooling sheet 121.

[0028] The food dish 3 is connected to the inside of the housing 2 and also to the thermally conductive sheet 11. The food dish 3 is provided with at least two food containers 31, and wet food to be kept fresh is placed in each of the food containers 31. The food cover 4 is provided with windows 41 communicating with the food containers 31, and when one food container 31 corresponds to the window 41, a pet can conveniently eat the wet food in the food container 31 through the window 41.

[0029] The driving mechanism 5 is provided in the housing 2, and a driving end of the driving mechanism 5 is connected to the food tray 3, that is, the driving mechanism 5 can rotate the food tray 3, or a driving end of the driving mechanism 5 is connected to the food cover 4, that is, the driving mechanism 5 can rotate the food cover 4. The operating principle is as follows.

[0030] The semiconductor cooling sheet 121 is also called a thermoelectric semiconductor cooling sheet 1211, and starts cooling or heating when power is turned on. The control module 122 controls the heating or cooling of the first surface of the semiconductor cooling sheet 121. When cooling is required, the control module 122 controls the first surface of the semiconductor cooling sheet 121 to cool. When heating is required, the control module 122 controls the first surface of the semiconductor cooling sheet 121 to heat, and the heating function can be realized without the need for an additional heating structure, and the overall structure is relatively simple, and the amount of cold or heat generated by the semiconductor cooling sheet 121 is transferred to the food dish 3 through the thermally conductive sheet 11, so that the temperature of the wet food in the food dish 3 is maintained within a certain temperature, and the generation of places where the temperature of the wet food is too high and too low is avoided, thereby achieving a better freshness preservation effect. Here, the semiconductor cooling sheet 121 in this embodiment can maintain the temperature within 10 degrees.

[0031] Since wet food is placed in each food bowl 31, when the food tray 3 rotates, the wet food placed thereon is rotated, and when one of the food bowls 31 corresponds to the window 41, the pet can easily eat the wet food in the food bowl 31. Since wet food is placed in each food bowl 31, after the wet food in one food bowl 31 is finished, the food tray 3 continues to rotate until the next food bowl 31 corresponds to the window 41. That is, the relative rotation between the food tray 3 and the food cover 4 allows a specific food bowl 31 to be selectively aligned with the window 41, thereby achieving the purpose of selective feeding. It can also be understood that since the food tray 3 moves but the food cover 4 does not move, the pet can eat the wet food in the food bowl 31 without changing its position.

[0032] Of course, in other embodiments, when the food cover 4 rotates, the food dish 3 does not rotate, and the window 41 is driven to correspond to a specific food container 31, so that the pet can easily eat the wet food in the food container 31 through the window 41, and the purpose of selective feeding can be achieved, so that the present invention is not limited thereto. Therefore, when the food cover 4 moves but the food dish 3 does not move, it can be understood that the food cover 4 itself is lighter than the food dish 3, since the food cover 4 does not hold the food. Designed in this way, the driving force required for the drive mechanism 5 is smaller.

[0033] The pet feeder provided by the present invention has the following beneficial effects compared with the prior art:

[0034] Firstly, the control module 122 controls the heating or cooling of the first surface of the semiconductor cooling sheet 121, so that the wet food can be heated or cooled, which is simple in structure and does not require any additional heating structure to complete the heating function, thus solving the technical problem of the complicated operation caused by using frozen blue ice to preserve freshness, and is easy to operate, which can prevent the temperature of the wet food from being too high in some places and too low in others, and has a relatively good effect of preserving freshness.

[0035] Next, the feeding tray 3 or the food cover 4 is rotated using a driving mechanism 5, and since a plurality of feeding containers 31 are provided in the feeding tray 3, a specific feeding container 31 can be selectively made to correspond to the window 41 to achieve the purpose of selective feeding.

[0036] Here, the semiconductor cooling sheet 121 in this embodiment utilizes the Peltier effect of semiconductor materials, and when DC power passes through two galvanic couples made of different semiconductor materials connected in series, both ends of the galvanic couple can absorb and release heat, respectively, thereby achieving the purpose of cooling or heating. Note that the control module 122 in this embodiment realizes the control of the switching time of the semiconductor cooling sheet 121 to cool or heat by switching or timing. The thermally conductive sheet 11 has a fan-shaped structure and is made of aluminum material, which is inexpensive and has good thermal conductivity and cold / hot conductivity effects.

[0037] In one embodiment of the present invention, also referring to FIG. 9 , the control module 122 includes a driver chip 1221, a controller 1222, and a power supply 1223, where the driver chip 1221 is electrically connected to the semiconductor cooling sheet 121, the controller 1222 is electrically connected to the driver chip 1221, the controller 1222 controls the forward and reverse conduction of the semiconductor cooling sheet 121 through the driver chip 1221, and the power supply 1223 is electrically connected to the driver chip 1221 and used to supply power to the driver chip 1221.

[0038] Here, the controller 1222 is electrically connected to the driving chip 1221 via the first control line 123 and the second control line 124, the driving chip 1221 is electrically connected to the semiconductor cooling sheet 121 via the first output line 125 and the second output line 126, the driving chip 1221 is supplied with power by the power supply 1223, controls the output signals of the first control line 123, the second control line 124, the first output line 125, and the second output line 126, and the controller 1222 changes the positive and negative polarities of the output by changing the port states of the first control line 123 and the second control line 124. For example, when the controller 1222 controls the first control line 123 to 1 and the second control line 124 to 0, the output of the first output line 125 becomes positive and the output of the second output line 126 becomes negative. At this time, the semiconductor cooling sheet 121 operates in a cooling state. That is, the surface of the semiconductor cooling sheet 121 facing the thermally conductive member 11 is the cold surface. Conversely, when the controller 1222 controls the first control line 123 to 0 and the second control line 124 to 1, the output of the first output line 125 becomes negative and the output of the second output line 126 becomes positive, and the semiconductor cooling sheet 121 operates in a heated state. That is, the surface of the semiconductor cooling sheet 121 facing the thermally conductive member 11 is the hot surface.

[0039] In one embodiment of the present invention, referring to FIG. 7, the thermally conductive sheet 11, the semiconductor cooling sheet 121, and the heat sink 13 are located on the same plane. In this embodiment, when the housing is placed on the ground or a desk, the plane is a horizontal plane, and the thermally conductive sheet 11, the semiconductor cooling sheet 12, and the heat sink 13 can be sequentially arranged on the same straight line. Of course, the thermally conductive sheet 11, the semiconductor cooling sheet 121, and the heat sink 13 may be arranged in a curved shape as long as it can be ensured that they are tightly attached to each other. Therefore, the three components are sequentially overlapped along the height direction of the housing 2, which avoids the accumulation of heat due to the action of gravity, and also avoids the increase in the thickness of the entire feeder.

[0040] In one embodiment of the present invention, referring to Figs. 2 and 3 together, the driving mechanism 5 includes a driving member 51 and a transmission assembly 6, the driving member 51 is provided in the housing 2, and the driving member 51 has the above-mentioned driving end connected to the bait tray 3 and used to rotate the bait tray 3 relative to the housing 2. The transmission assembly 6 is disposed in the housing 2 and is transmission-connected between the bait tray 3 and the driving member 51, allowing the bait tray 3 to rotate stably by the transmission assembly 6. Specifically, the driving member 51 may be a driving motor, and the output end of the driving motor is transmission-connected to the transmission assembly 6, thereby driving the bait tray 3 to rotate. Since the movement of the driving member 51 is transmitted through the transmission assembly 6, a smaller driving member 51 can be used, which can reduce costs to a certain extent.

[0041] Furthermore, the food tray 3 is spaced apart from the thermally conductive sheet 11, that is, the food tray 3 is spaced apart from the thermally conductive sheet 11, and the space in this embodiment is 0.5mm to 1.5mm. In a specific application, the space between the food tray 3 and the thermally conductive sheet 11 is 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, or 1.5mm. Spaced apart, the movement of the food tray 3 is transferred to the thermally conductive sheet 11 during the rotation process, which prevents the thermally conductive sheet 11 from being rubbed and deformed. At the same time, the gap between the food tray 3 and the thermally conductive sheet 11 is too large to prevent the cold from being transferred to the food tray 3.

[0042] Furthermore, in this embodiment, since the transmission assembly 6 is a worm gear transmission device, it is possible to transmit power between two staggered shafts without occupying the size in the height direction of the feeder. Specifically, the transmission assembly 6 includes a rotating shaft 61, a first worm wheel 62, a first worm 63, a second worm wheel 64, and a second worm 65. The rotating shaft 61 is arranged in the housing 2 along the axial direction of the housing, a first end of the rotating shaft 61 is connected to the housing 2, a second end of the rotating shaft 61 passes through the feed tray 3, the first worm wheel 62 is coaxially fitted to the first end of the rotating shaft 61, and a worm wheel can be formed by providing a tooth groove on the outer circumferential surface of the rotating shaft 61. That is, the rotating shaft 61 and the first worm wheel 62 are integrally molded. Of course, the worm wheel and the rotating shaft 61 can be directly attached and detached as separate structures, making replacement easy.

[0043] The first worm 63 is disposed on one side of the rotating shaft 61 and extends in a direction perpendicular to the axis of the rotating shaft 61, the first worm 63 transmits power while meshing with the first worm wheel 62, the second worm wheel 64 is coaxially fitted to the first worm 63, the second worm 65 extends in a direction perpendicular to the axis of the first worm 63 and the axis of the rotating shaft 61, the second worm 65 meshes with the second worm wheel 64, and one end of the second worm 65 remote from the second worm wheel 64 is coaxially connected to the driving end of the driving member 51. When the driving end of the driving member 51 rotates, the second worm 65 is driven to rotate, and the second worm 65 drives the second worm wheel 64 to rotate. Since the second worm wheel 64 is fitted to the first worm 63, the first worm 63 is rotated, and the first worm wheel 62 meshing with the first worm 63 is rotated by the rotation of the first worm 63, and since the first worm wheel 62 is arranged on the rotating shaft 61, the rotating shaft 61 is rotated, and further the feed dish 3 is rotated. By using the first worm wheel 62, the first worm 63, the second worm 65, and the second worm wheel 64, that is, by two-stage transmission, the rotation speed of the rotating shaft 61 can be reduced. On the other hand, by using the first worm 63 provided on one side of the rotating shaft 61, an increase in the thickness of the entire feeder can be avoided.

[0044] Of course, in other embodiments, the transmission assembly 6 may include only the rotating shaft 61, the first worm wheel 62, and the first worm 63, and an end of the first worm 63 may be connected to the driving end of the driving member 51. In other words, it is sufficient to achieve a single-stage transmission.

[0045] Furthermore, in order to achieve the purpose of feeding at scheduled times, the pet feeder further includes a control panel (not shown) and a circuit board (not shown), the circuit board is provided at one end of the rotating shaft 61 that penetrates the food dish 3, and the control panel is disposed on the side of the circuit board away from the rotating shaft 61 and is electrically connected to the circuit board. An operation button is provided on the control panel. The operation button may be a timing button. For example, after setting the rotation time, the circuit board can control the driving member 51 to rotate periodically to realize automatic feeding.

[0046] One end of the rotating shaft 61 protrudes from the food dish 3 but does not penetrate the food cover 4. To facilitate operation of the control panel and to prevent erroneous operation when a pet is eating wet food, a protective cover 9 is provided on the food cover 4 at a position corresponding to the control panel, and this protective cover 9 is detachably connected to the food cover 4, so that the control panel can be easily operated with the protective cover 9 removed.

[0047] In another embodiment of the present invention, referring to Fig. 4 and Fig. 5, the food dish 3 includes a main body 32 and at least one plug 33, the main body 32 is provided with at least two food containers 31, the main body 32 is provided with a connection through hole 34 through which the second end of the rotating shaft 61 passes, and the at least two food containers 31 are arranged around the connection through hole 34. That is, the connection through hole 34 is arranged at the center position of the main body 32. Each plug 33 is connected to the main body 32, and the plug 33 extends in a direction toward the rotating shaft 61, and at least one plug 33 is arranged around the connection through hole 34, and the outer peripheral wall of the rotating shaft 61 is provided with a plug slot 610 into which the plug 33 is inserted, and the plug 33 is inserted into the plug slot 610 to connect the food dish 3 to the rotating shaft 61.

[0048] In certain applications, the number of the at least one plug-in portion 33 is one or more than one, but in order to achieve a more stable connection, the number of the plug-in portions 33 is more than one. Of course, in other embodiments, the food dish 3 can be provided with a plug-in slot and the rotating shaft 61 can be provided with a plug-in portion, and the connection between the food dish 3 and the rotating shaft 61 can be realized by the cooperation of the plug-in portion and the plug-in slot.

[0049] 2 and 7, in another embodiment of the present invention, the pet feeder further includes a middle frame 7 and a first heat insulating member 8, the middle frame 7 is disposed on the side of the food tray 3 facing the housing 2, a first housing cavity is formed between the middle frame 7 and the housing 2, and the heat sink 13 and the semiconductor cooling sheet 121 are both disposed in the first housing cavity. Here, the thermally conductive sheet 11 protrudes from the middle frame 7 and is disposed apart from the food tray 3, so that the cold or heat of the semiconductor cooling sheet 121 is transferred to the food tray 3, and the wet food in the food tray 3 is kept fresh.

[0050] The first insulating member 8 is disposed in the first accommodating cavity, and the transmission assembly 6 is disposed in the first insulating member 8 and connected to the feed tray 3 through the middle frame 7, and the first insulating member 8 is used to block contact between the room temperature air in the first accommodating cavity and the feed tray 3, and make the area of ​​the feed tray 3 an independent low-temperature area.

[0051] Specifically, in this embodiment, the first heat insulating member 8 is made of EPS (expanded polystyrene) material, which has advantages such as light weight, low thermal conductivity, and low water absorption, and can effectively prevent room temperature air in the third housing cavity from being transmitted to the thermally conductive sheet 11 through the inner frame 7 and affecting the freshness of the food dish 3 for the items that should be kept fresh. The first heat insulating member 8 is provided with a mounting groove 81, and the drive mechanism 5 is attached within the mounting groove 81. The mounting groove 81 is a recessed groove, and the housing 2 is provided with a support frame 21, which is provided corresponding to the mounting groove 81, and the drive mechanism 5 is attached to the support frame 21.

[0052] 5, the middle frame 7 includes a mounting portion 71 which is a plate-shaped structure, and an extension portion 72 which extends horizontally from one side of the mounting portion 71, the thermally conductive sheet 11 and the food dish 3 are arranged in order within the mounting portion 71, the extension portion 72 and the mounting portion 71 form a storage space surrounding the semiconductor cooling sheet 121 and the heat sink 13, and the mounting portion 71 is provided with a through hole for passing the thermally conductive sheet 11. That is, the thermally conductive sheet 11 is arranged within the mounting portion 71 through the through hole, so that the cold or heat generated by the semiconductor cooling sheet 121 can be transferred to the food dish 3. By arranging the food dish on the mounting portion 71 and arranging the semiconductor cooling sheet 121 and the heat sink 13 on one side of the mounting portion 71, it is possible to avoid increasing the thickness of the entire pet feeder to a certain extent.

[0053] 6 to 8, in another embodiment of the present invention, the heat sink 13 includes a conductive substrate 130, a heat dissipation fin 131, and a cooling fan 132, the conductive substrate 130 contacts the second surface of the semiconductor cooling sheet 121, the heat dissipation fin 131 extends outward from the conductive substrate 130, and the outward direction means the direction away from the conductive substrate 130. The cooling fan 132 is used to blow air onto the heat dissipation fin 131 from the front and to flow air between the heat dissipation fin 131, and further to quickly dissipate heat from the heat dissipation fin 131 to achieve a rapid heat dissipation effect. The heat dissipation fin 131 may be an aluminum heat equalizing tube or heat equalizing plate, and the configuration and structure are not limited.

[0054] In one embodiment of the present invention, referring to FIG. 2 , the cooling fan 132 includes a fan wheel (not shown), the housing 2 has an air inlet 22 and an air outlet 23, the air inlet 22 is arranged parallel to the fan wheel of the cooling fan 132, the air outlet 23 is arranged at an angle to the fan wheel, and the cooling fan 132 is an axial fan that can push air along the air inlet 22 and exhaust the air from the air outlet 23 around the housing 2.

[0055] 7, in another embodiment of the present invention, the thermally conductive sheet 11 includes a connection part 110 and a bent part 111, the connection part 110 is connected to a first surface of the semiconductor cooling sheet 121, the bent part 111 extends from one end of the connection part 110 in a direction away from the semiconductor cooling sheet 121, and the bent part 111 is used to contact an object to be kept fresh. Here, the connection part 110 in this embodiment has a sheet-like structure, an end face of the connection part 110 is connected to the surface of the semiconductor cooling sheet 121, the bent part 111 also has a sheet-like structure, and the bent part 111 is used to connect to the food dish 3 of a pet feeder. According to the bending portion 111, the bending portion 111 comes into surface contact with the object to be kept fresh, thereby increasing the contact area between the thermally conductive sheet 11 and the object to be kept fresh. This enables the small-volume semiconductor cooling sheet 121 to cool and keep fresh a wide area of ​​the object to be kept fresh, thereby realizing uniform cooling of the object to be kept fresh, and by placing the object to be kept fresh on one side of the semiconductor cooling sheet 121, an increase in the height of the entire cooling mechanism can be avoided.

[0056] Specifically, the bent portion 111 in this embodiment is a semicircular sheet-like structure. Of course, the bent portion 111 may be disk-shaped or may be selected according to specific needs.

[0057] In another embodiment of the present invention, referring to Fig. 7 and Fig. 8, the pet feeder further includes a bracket 14 and a second heat insulating member 151, the bracket 14 is provided in the housing 2, the heat sink 13, the semiconductor cooling sheet 121, and the thermally conductive sheet 11 are arranged in this order on the bracket 14, and the heat sink 13, the temperature adjusting structure 12, and the thermally conductive sheet 11 are provided with a support function, and the whole is improved for cooling the items to be kept fresh. In order to avoid contact between the thermally conductive sheet 11 and the heat sink 13 and to avoid the influence of the external room temperature air on the semiconductor cooling sheet 121, the second heat insulating member 151 is provided on one side of the bracket 14 and is located between the thermally conductive sheet 11 and the heat sink 13. Furthermore, the second heat insulating member 151 is covered on the semiconductor cooling sheet 121.

[0058] Specifically, in this embodiment, the second insulation member 151 is made of EPS (expanded polystyrene) material having advantages such as light weight, low thermal conductivity, and low water absorption, thereby effectively blocking contact between the external room temperature air and the semiconductor cooling sheet 121. The second insulation member 151 is provided with a first through hole 1510, which allows the semiconductor cooling sheet 121 to pass through and contact the thermally conductive sheet 11 and the heat sink 13, respectively. That is, the semiconductor cooling sheet 121 is attached to the second insulation member 151 through the first through hole 1510.

[0059] In another embodiment of the present invention, referring to Fig. 7 and Fig. 8, the pet feeder further includes a thermally conductive block 16 and a third insulating member 152, and the thermally conductive block 16 is disposed between the semiconductor cooling sheet 121 and the thermally conductive sheet 11, so as to increase the transfer speed of the cold amount and transfer the low temperature to the thermally conductive sheet 11. In order to avoid the influence of the external room temperature air on the thermally conductive sheet 11 side on the thermally conductive block 16 and the semiconductor cooling sheet 121, the third insulating member 152 is covered on the thermally conductive block 16 and is disposed between the semiconductor cooling sheet 121 and the thermally conductive sheet 11, so as to block the influence of the external air on the thermally conductive block 16 and the semiconductor cooling sheet 121.

[0060] Specifically, in this embodiment, the thermally conductive block 16 is made of aluminum material having excellent thermal conductivity at low cost, and the third heat insulating member 152 is made of EPS (expanded polystyrene) material having advantages such as light weight, low thermal conductivity, and low water absorption, thereby effectively blocking contact between the external room temperature air and the semiconductor cooling sheet 121 and the thermally conductive sheet 11, and a thermally conductive adhesive is provided between the semiconductor cooling sheet 121 and the thermally conductive sheet 11 to facilitate heat conduction. The third heat insulating member 152 is provided with a second through hole 1520, and the second through hole 1520 penetrates the thermally conductive block 16 to contact the semiconductor cooling sheet 121 and the thermally conductive sheet 11, respectively. That is, the thermally conductive block 16 is attached to the third heat insulating member 152 through the second through hole 1520.

[0061] 7 and 8, in another embodiment of the present invention, the bracket 14 includes a bottom plate 141, at least two first side plates 142, and at least two second side plates 143. Here, the bottom plate 141 is provided between the second heat insulating member 151 and the third heat insulating member 152, and the bottom plate 141 is provided with a through hole 1410 through which the semiconductor cooling sheet 121 passes and contacts the thermally conductive block 16. The at least two first side plates 142 are provided on the side of the bottom plate 141 facing the heat sink 13, and are surrounded to form a second accommodating cavity, in which the heat sink 13 and the second heat insulating member 151 are disposed.

[0062] At least two second side plates 143 are provided on the side of the bottom plate 141 facing the thermally conductive sheet 11, and are surrounded to form a third accommodating cavity, in which the thermally conductive block 16 is disposed, and the third heat insulating member 152 is fitted to the at least two second side plates 143. That is, the second side plate 143 is inserted through the second through hole 1520 of the third heat insulating member 152. The thermally conductive sheet 11 and the heat sink 13 may be separated by the bottom plate 141 to avoid contact between the thermally conductive sheet 11 and the heat sink 13. The first side plate 142 may support the heat sink 13 and the second heat insulating member 151, and the second side plate 143 may be used to support the thermally conductive block 16 and the thermally conductive sheet 11. Since the bracket 14 can integrate the heat sink 13, the thermally conductive sheet 11, and the semiconductor cooling sheet 121, it can cool items that need to be kept at different freshness in different containers, and has a high degree of integration.

[0063] The above are only preferred embodiments of the present invention, and the present invention is not limited thereto. As long as they fall within the spirit and principle of the present invention, all modifications, equivalent replacements, improvements, etc., made therein should be included within the protection scope of the present invention. [Explanation of symbols]

[0064] 11 thermally conductive sheet, 110 connection portion, 111 bending portion, 12 temperature adjustment structure, 121 semiconductor cooling sheet, 122 control module, 1221 driving chip, 1222 controller, 1223 power supply, 123 first control line, 124 second control line, 125 first output line, 126 second output line, 13 heat sink, 130 conductive substrate, 131 heat dissipation fin, 132 cooling fan, 14 bracket, 141 bottom plate, 1410 through hole, 142 first side plate, 143 second side plate, 151 second heat insulating member, 1510 first through hole, 152 third heat insulating member, 1520 second through hole, 16 thermally conductive block, 2 housing, 21 support frame, 22 air inlet, 23 air outlet, 3 food dish, 31 food container, 32 main body, 33 insertion part, 34 connection through hole, 4 food covers, 41 windows, 5 Drive mechanism, 51 Drive member, 6 Transmission assembly, 61 Rotating shaft, 610 Insertion slot, 62 First worm wheel, 63 First worm, 64 Second worm wheel, 65 Second worm, 7 middle frame, 71 mounting portion, 72 extension portion, 8 first heat insulating member, 81 mounting groove, 9 Protective cover.

Claims

1. A pet feeder comprising a housing, a food dish, a food cover, and a drive mechanism, a thermally conductive sheet, a temperature adjustment structure, and a heat sink are provided within the housing, the temperature adjustment structure includes a semiconductor cooling sheet and a control module, the semiconductor cooling sheet has a first surface and a second surface arranged opposite to each other, the first surface is connected to the thermally conductive sheet, and the second surface is closely attached to the heat sink, and the control module is used to control the cooling or heating of the first surface of the semiconductor cooling sheet; The food dish is connected to the inside of the housing and to the thermally conductive sheet, and the food dish is provided with at least two food containers, and each of the food containers is used to place an item to be kept fresh; The food cover is placed over the food tray, and the food tray is provided with a window communicating with the food container, A pet feeder characterized in that the drive mechanism is provided within the housing, and a drive end of the drive mechanism is connected to the food tray or a drive end of the drive mechanism is connected to the food cover.

2. The control module includes: a driving chip electrically connected to the semiconductor cooling sheet; a controller electrically connected to the driving chip and controlling the forward and reverse conduction of the semiconductor cooling sheet through the driving chip; 2. The pet feeder of claim 1, further comprising: a power source electrically connected to the driver chip.

3. 2. The pet feeder according to claim 1, wherein the thermally conductive sheet, the semiconductor cooling sheet, and the heat sink are located on the same plane.

4. The drive mechanism includes: a driving member provided within a housing and having the driving end; a transmission assembly disposed within the housing and transmission-connected between the food dish and the drive member, 2. The pet feeder according to claim 1, wherein the food dish is disposed at a distance from the thermally conductive sheet.

5. The transmission assembly includes: a rotating shaft disposed within the housing along an axial direction of the housing, the rotating shaft having a first end provided within the housing and a second end passing through the food dish and connected to the food dish; a first worm wheel coaxially mounted on a first end of the rotating shaft; a first worm disposed on one side of a rotation shaft, extending in a direction perpendicular to an axis of the rotation shaft, and meshing with the first worm wheel; a second worm wheel that is coaxially mounted on the first worm; The pet feeder described in claim 4, characterized in that it includes a second worm that meshes with the second worm wheel and whose extension direction is perpendicular to the axis of the first worm and the axial direction of the rotation shaft, and one end of the second worm away from the second worm wheel is coaxially connected to the drive end of the drive member.

6. The food dish is a main body portion provided with the food bowl and having a connection through hole through which the second end of the rotating shaft is inserted; At least one plug portion connected to the main body portion, extending in a direction of the rotation axis, and arranged to surround the connection through hole, 6. The pet feeder according to claim 5, wherein an insertion slot into which the insertion portion is inserted is provided on an outer peripheral wall of the rotating shaft.

7. Further comprising a middle frame and a first insulating member; The inner frame is disposed on a side of the food tray facing the housing, a first housing cavity is formed between the inner frame and the housing, the heat sink and the semiconductor cooling sheet are both disposed within the first housing cavity, and the thermally conductive sheet is protruding from the inner frame and connected to the food tray; The pet feeder of any one of claims 1 to 6, characterized in that the first insulating member is disposed within the first accommodating cavity, and the driving mechanism is disposed in the first insulating member.

8. The heat sink is a conductive substrate adapted to closely adhere to the second surface of the semiconductor cooling sheet; a heat dissipation fin extending outwardly from the conductive substrate; 7. The pet feeder of claim 1, further comprising a cooling fan used to blow air over the heat dissipation fins.

9. 9. The pet feeder of claim 8, wherein the cooling fan includes a fan wheel, the housing has an air inlet and an air outlet, the air inlet being disposed parallel to an axis of the fan wheel, and the air outlet being disposed at an angle to the fan wheel.

10. The thermally conductive sheet is a connection portion connected to the first surface of the semiconductor cooling sheet; The pet feeder according to any one of claims 1 to 6, further comprising a bent portion extending from one end of the connection portion in a direction away from the semiconductor cooling sheet and adapted to be tightly attached to the food tray.

11. Further comprising a bracket and a second insulating member; the bracket is provided in the housing, and the heat sink, the semiconductor cooling sheet, and the thermally conductive sheet are arranged on the bracket in this order; The pet feeder of any one of claims 1 to 6, characterized in that the second insulation member is provided between the thermally conductive sheet and the heat sink, and is further covered by the semiconductor cooling sheet.

12. Further comprising a thermally conductive block and a third insulating member; the thermally conductive block is provided between the semiconductor cooling sheet and the thermally conductive sheet, 12. The pet feeder according to claim 11, wherein the third insulating member is attached to the thermally conductive block and is located between the semiconductor cooling sheet and the thermally conductive sheet.

13. The bracket includes a bottom plate, at least two first side plates, and at least two second side plates; the bottom plate is provided between the second heat insulating member and the third heat insulating member, and the bottom plate is provided with a through hole through which the semiconductor cooling sheet passes and contacts the thermally conductive block; The at least two first side plates are provided on a side of the bottom plate facing the heat sink and are surrounded to form a second accommodating cavity, and a heat sink and a second insulating member are disposed in the second accommodating cavity; The pet feeder described in claim 12, characterized in that the at least two second side panels are provided on the side of the bottom panel facing the thermally conductive sheet and are surrounded to form a third accommodating cavity, the thermally conductive block is arranged within the third accommodating cavity, and a third insulating member is attached to the at least two side panels.

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