Heat exchange device for cooking equipment and cooking equipment

Abstract

The utility model relates to a heat exchange device for cooking equipment and the cooking equipment. The heat exchange device for the cooking equipment comprises a main body, a heat absorption piece, a fan and a heating piece, an air return space communicated with the cooking cavity is formed in the main body; the heat absorbing piece is connected to the main body and located on one side close to the cooking cavity in the air return space; the fan is connected to the main body and comprises a first blade located in the air return space; the heating piece is connected to the main body and located in the air return space, and the heating piece is arranged around the first blade. The cooking equipment in the scheme can be applied to storing food materials needing to be stored at low temperature when the environment temperature is high, then the long-time reservation function can be achieved, and meanwhile the cooking taste and food safety in the application scene are improved.

Description

Technical Field

[0001] The present application relates to the field of electrical appliance technology, and in particular to a heat exchange device for cooking equipment and the cooking equipment. Background Art

[0002] Cooking equipment such as steamers, ovens and steam ovens, for example, requires that the ingredients be processed in advance before being placed in the cooking space for cooking. Existing cooking equipment has the disadvantage of not being able to schedule cooking. For example, when the ambient temperature is high, ingredients such as meat that need to be kept at low temperatures need to be stored in a refrigerator. When they are needed, the ingredients are temporarily processed and placed in the cooking space for cooking. If ingredients such as meat that need to be kept at low temperatures are directly placed in the cooking space for storage, the ingredients may deteriorate, thereby affecting the cooking effect and food safety. Summary of the invention

[0003] Based on this, it is necessary to provide a heat exchange device and cooking equipment for the cooking equipment to address the problem that the existing cooking equipment cannot be scheduled for cooking.

[0004] A heat exchange device for a cooking device is used for exchanging heat with a cooking cavity of the cooking device, and the heat exchange device for the cooking device comprises a main body, a heat absorbing member, a fan and a heating member. A return air space communicating with the cooking cavity is provided inside the main body; the heat absorbing member is connected to the main body and is located on a side of the return air space close to the cooking cavity; the fan is connected to the main body and comprises a first blade located in the return air space; the heating member is connected to the main body and is located in the return air space, and the heating member is arranged around the first blade.

[0005] In one embodiment, the main body includes a baffle, the baffle is provided with a return air port for connecting to the cooking cavity, the return air space is located on the side of the baffle away from the cooking cavity, and the heat absorption component is attached to the side of the baffle away from the cooking cavity.

[0006] In one of the embodiments, the baffle includes a return air zone where the return air outlet is opened and a heat absorption zone arranged around the return air zone, the heat absorption element is bent and attached to the heat absorption zone, and the heating element is located in the return air zone.

[0007] In one embodiment, the heat exchange device further includes a refrigerator and a heat absorption pipeline, wherein the heat absorption pipeline connects the heat absorption element and the refrigerator to form a circulation loop filled with refrigerant.

[0008] In one embodiment, the fan further includes a second blade, the second blade is rotatably connected to the main body, and the second blade is located at one side of the refrigerator and faces the refrigerator.

[0009] In one embodiment, the fan further includes a driving member and a rotating shaft, the driving member is transmission-connected to the rotating shaft and is used to drive the rotating shaft to rotate, and the first blade and the second blade are both connected to the rotating shaft and rotate synchronously with the rotating shaft.

[0010] In one embodiment, the refrigerator and the second blade are both located outside the return air space and on a side of the main body facing away from the cooking cavity.

[0011] In one of the embodiments, the heat exchange device further includes a compressor, which is connected to the refrigerator and the heat absorption pipeline, and the compressor acts on the refrigerant in the heat absorption pipeline.

[0012] In one embodiment, the surface of the heat absorbing element is coated with a food-grade coating.

[0013] A cooking device comprises the heat exchange device for cooking device as described in any of the above embodiments.

[0014] In the above scheme, by arranging the heat absorbing element, the fan and the heating element, the heat absorbing element can play the effect of lowering the temperature of the return air space and the cooking cavity, and at the same time, a heating element capable of increasing the temperature is arranged, so that the temperature in the return air space and the cooking cavity can be increased. Combined with the first blade of the fan, when the fan is combined with the heat absorbing element, the cooling efficiency of the heat absorbing element can be improved, and when the fan is combined with the heating element, the heat absorbing element can be defrosted, while taking into account the functions of the heating element and the fan to generate hot air and the air flow circulation in the cooking cavity, so that the cooking device using the heat exchange device provided by the scheme can be used to store food that needs to be preserved at a low temperature when the ambient temperature is high, thereby enabling it to realize a long-term reservation function, while improving the cooking taste and food safety in this application scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of a cooking device in one embodiment of the present application.

[0016] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the cooking equipment.

[0017] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0018] Figure 4 for Figure 2 Schematic diagram of the exploded structure of the heat exchange device.

[0019] Figure 5 for Figure 4 Schematic diagram of the installation structure of the middle baffle and cooler.

[0020] Figure 6 for Figure 4 Schematic diagram of the structure of the heat absorption pipeline.

[0021] Description of reference numerals:

[0022] 10. Cooking equipment; 100. Heat exchange device; 110. Main body; 111. Return air space; 112. Baffle; 1121. Return air outlet; 1122. Return air area; 1123. Heat absorption area; 113. Back plate; 120. Heat absorption element; 130. Fan; 131. First blade; 132. Second blade; 133. Rotating shaft; 134. Driving element; 140. Heating element; 150. Refrigerator; 160. Heat absorption pipeline; 161. First pipeline; 162. Second pipeline; 163. Third pipeline; 170. Compressor; 200. Inner pot; 210. Cooking cavity; 300. Door body. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0027] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0029] See also Figure 1 and Figure 2 , Figure 1 FIG. 1 shows a schematic diagram of the structure of a cooking device 10 in an embodiment of the present application. Figure 2 FIG. 1 is a schematic diagram showing a cross-sectional structure of a cooking device 10 in an embodiment of the present application. A cooking device 10 provided in an embodiment of the present application includes: Figure 1 and Figure 2 The inner pot 200 and the door body 300 are shown, wherein the inner pot 200 is provided with a cooking cavity 210, and the door body 300 is covered on the door body 300, and also includes a heat exchange device 100 for the cooking device 10 as in any of the following embodiments.

[0030] Combination Figure 3 As shown, Figure 3 It shows that Figure 2The heat exchange device 100 of the cooking device 10 shown in the figure is a heat exchange device 100 for the cooking device 10 provided in one embodiment of the present application, which is used to perform heat exchange with the cooking cavity 210 of the cooking device 10, so as to adjust the temperature inside the cooking cavity 210 through heat exchange between the heat exchange device 100 and the cooking cavity 210. Figure 1 and Figure 2 As shown, in this embodiment, the heat exchange device 100 is located on the back side of the cooking device 10, that is, the side of the inner pot 200 away from the door body 300.

[0031] The heat exchange device 100 for a cooking device 10 includes a main body 110, a heat absorbing member 120, a fan 130 and a heating member 140. Figure 3 As shown, a return air space 111 connected to the cooking cavity 210 is provided inside the main body 110. Since the return air space 111 is connected to the cooking cavity 210, when the temperature in the return air space 111 increases or decreases, the temperature in the cooking cavity 210 will change with the temperature of the return air space 111.

[0032] The heat absorbing element 120 itself has a low temperature, and it can lower the surrounding temperature by exchanging heat with the surrounding. In this embodiment, the heat absorbing element 120 is an evaporator, and the heat absorbing element 120 is a pipe with a low-temperature fluid inside. In other embodiments, the heat absorbing element 120 can also be made of a chemical heat absorbing material. Figure 3 As shown, the heat absorbing member 120 is connected to the main body 110 and is located in the return air space 111 on one side close to the cooking cavity 210 , so that the heat absorbing member 120 can absorb the temperature in the cooking cavity 210 , thereby reducing the temperature in the cooking cavity 210 .

[0033] The fan 130 is connected to the main body 110, and includes a first blade 131 located in the return air space 111. The first blade 131 is rotatably arranged relative to the main body 110 so that the first blade 131 can rotate inside the return air space 111. When the fan 130 and the heat absorbing member 120 are both turned on, the wind generated by the rotation of the first blade 131 will be blown into the cooking cavity 210 to accelerate the heat absorption efficiency of the heat absorbing member 120.

[0034] The heating element 140 can generate heat. For example, the heating element 140 adopts an electric heating ring. In other embodiments, the heating element 140 can also be a pipe with a high-temperature fluid inside. The heating element 140 is connected to the main body 110 and is located in the return air space 111, and is arranged around the first blade 131. When the heating element 140 and the fan 130 are both turned on, the wind generated by the rotation of the first blade 131 will form hot wind inside the return air space 111 under the action of the heating element 140, and then blow into the cooking cavity 210, so as to increase the temperature inside the cooking cavity 210. In actual use, when the heat absorbing element 120 works for a long time, frost may form in the return air space 111 and the cooking cavity 210. When the heating element 140 and the fan 130 are turned on, they can also have a defrosting effect.

[0035] In one embodiment, the main body 110 includes a baffle 112, and the baffle 112 is provided with a return air port 1121 for connecting to the cooking cavity 210. Preferably, the return air port 1121 is located at the central negative pressure area when the first blade 131 rotates, so that the airflow in the cooking cavity 210 enters the return air space 111 through the return air port 1121. The return air space 111 is located on the side of the baffle 112 away from the cooking cavity 210. The heat absorption element 120 is located in the return air space 111 and is attached to the side of the baffle 112 away from the cooking cavity 210, so that the heat absorption element 120 can reduce the temperature of the cooking cavity 210 by absorbing the heat of the baffle 112.

[0036] Combination Figure 4 As shown, the main body 110 further includes a back plate 113, the back plate 113 and the baffle 112 together enclose a return air space 111, and the fan 130 is connected to the back plate 113, and the first blade 131 is rotatably connected to the back plate 113. In this embodiment, the heating element 140 is fixedly connected to the back plate 113. In other embodiments, the heating element 140 can also be connected to the baffle 112.

[0037] Combination Figure 5 As shown, in one embodiment, the baffle 112 includes a return air zone 1122 with a return air port 1121 and a heat absorbing zone 1123 arranged around the return air zone 1122. The heat absorbing zone 1123 is located at the periphery of the return air zone 1122, and the heat absorbing member 120 is bent and attached to the heat absorbing zone 1123. In this embodiment, the heat absorbing member 120 is in a curved serpentine structure so that there is as much contact area as possible between the heat absorbing member 120 and the baffle 112, thereby improving the heat absorption efficiency of the heat absorbing member 120. In other embodiments, the heat absorbing member 120 may also be in a spiral ring structure. The heating member 140 is located in the return air zone 1122 so that the wind generated by the rotation of the first blade 131 can flow through the heating member 140 to form hot wind when it flows from the return air port 1121 to the cooking cavity 210.

[0038] like Figure 4 and Figure 6 As shown, in one embodiment, the heat exchange device 100 also includes a refrigerator 150 and a heat absorption pipeline 160. The heat absorption pipeline 160 connects the heat absorption element 120 and the refrigerator 150 to form a circulation loop filled with refrigerant. The refrigerator 150 is used to cool the refrigerant. The refrigerant cooled by the refrigerator 150 flows into the heat absorption element 120 through the heat absorption pipeline 160, and absorbs ambient heat in the heat absorption element 120, so that the ambient heat is reduced, while the temperature of the refrigerant increases, and then flows into the refrigerant through the heat absorption pipeline 160 to cool down, and the reciprocating cycle is repeated to reduce the temperature of the heat absorption element 120 to be close to the temperature of the refrigerant.

[0039] like Figure 4 and Figure 6 As shown, in one embodiment, the fan 130 also includes a second blade 132, and the second blade 132 is rotatably connected to the main body 110. In this embodiment, the second pressure plate is rotatably connected to the back plate 113, and the second blade 132 is located on one side of the refrigerator 150 and faces the refrigerator 150. When the second blade 132 rotates, it can blow air toward the refrigerator 150, thereby improving the heat dissipation efficiency of the refrigerator 150 and avoiding the refrigerator 150 from heating up due to long-term operation.

[0040] In some embodiments, the first blade 131 and the second blade 132 can be controlled separately by connecting different rotation axes. Figure 4 As shown, in one embodiment, the fan 130 also includes a driving member 134 and a rotating shaft 133. The driving member 134 is connected to the rotating shaft 133 and is used to drive the rotating shaft 133 to rotate. The first blade 131 and the second blade 132 are both connected to the rotating shaft 133 and rotate synchronously with the rotating shaft 133, so that the first blade 131 and the second blade 132 can be controlled uniformly, avoiding the increase in cost and large installation space caused by separately controlling the first blade 131 and the second blade 132.

[0041] like Figure 3 and Figure 4 As shown, in one embodiment, the refrigerator 150 and the second blade 132 are both located outside the return air space 111 and on the side of the main body 110 away from the cooking cavity 210 to reduce the space requirement of the return air space 111 and avoid poor heating and heat absorption efficiency caused by the return air space 111 being too large.

[0042] like Figure 1 and Figure 4 As shown, in one embodiment, the heat exchange device 100 further includes a compressor 170, which is connected to the refrigerator 150 and the heat absorption pipeline 160, and the compressor 170 acts on the refrigerant in the heat absorption pipeline 160 to compress the refrigerant and drive the refrigerant to circulate in the heat absorption pipeline 160. Figure 6As shown, the heat absorption pipeline 160 includes a first pipeline 161, a second pipeline 162 and a third pipeline 163, wherein the first pipeline 161 connects the compressor 170 and the heat absorption element 120, the second pipeline 162 connects the heat absorption element 120 and the refrigerator 150, and the third pipeline 163 connects the refrigerator 150 and the compressor 170, thereby forming a circulation loop.

[0043] In one embodiment, the surface of the heat absorbing member 120 is coated with a food-grade coating to prevent the heat absorbing member 120 from contaminating the food in the cooking cavity 210. In one embodiment, the heat absorbing member 120 can be made of a metal such as copper or aluminum.

[0044] In the above scheme, by providing the heat absorbing element 120, the fan 130 and the heating element 140, the heat absorbing element 120 can play the effect of reducing the temperature of the return air space 111 and the cooking cavity 210. At the same time, the heating element 140 capable of increasing the temperature is provided, so that the temperature in the return air space 111 and the cooking cavity 210 can be increased. In combination with the first blade 131 of the fan 130, when the fan 130 is combined with the heat absorbing element 120, the cooling efficiency of the heat absorbing element 120 can be improved, and when the fan 130 is combined with the heating element 140, the heat absorbing element 120 can be defrosted, while taking into account the functions of the heating element 140 and the fan 130 generating hot air and the air flow circulation of the cooking cavity 210, so that the cooking device 10 using the heat exchange device 100 provided by the present scheme can be used for storing food that needs to be stored at a low temperature when the ambient temperature is high, thereby enabling it to realize a long-term reservation function, while improving the cooking taste and food safety in this application scenario.

[0045] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A heat exchange device for cooking equipment, characterized in that: Used to perform heat exchange with a cooking cavity (210) of a cooking device, the heat exchange device (100) for the cooking device comprises: A main body (110) is provided with an air return space (111) in communication with the cooking cavity (210); A heat absorbing element (120) connected to the main body (110) and located on a side of the return air space (111) close to the cooking cavity (210); A fan (130) connected to the main body (110), wherein the fan (130) comprises a first blade (131) located in the return air space (111); A heating element (140) is connected to the main body (110) and is located in the return air space (111), and the heating element (140) is arranged around the first blade (131).

2. The heat exchange device for cooking equipment according to claim 1, characterized in that: The main body (110) comprises a baffle (112), the baffle (112) being provided with a return air port (1121) for communicating with the cooking cavity (210), the return air space (111) being located on a side of the baffle (112) facing away from the cooking cavity (210), and the heat absorbing element (120) being attached to a side of the baffle (112) facing away from the cooking cavity (210).

3. The heat exchange device for cooking equipment according to claim 2, characterized in that: The baffle (112) comprises a return air zone (1122) in which the return air port (1121) is opened, and a heat absorption zone (1123) arranged around the return air zone (1122); the heat absorption element (120) is bent and attached to the heat absorption zone (1123); and the heating element (140) is located opposite to the return air zone (1122).

4. The heat exchange device for cooking equipment according to claim 1, characterized in that: The heat exchange device (100) further comprises a refrigerator (150) and a heat absorption pipeline (160), wherein the heat absorption pipeline (160) connects the heat absorption element (120) and the refrigerator (150) to form a circulation loop filled with refrigerant.

5. The heat exchange device for cooking equipment according to claim 4, characterized in that: The fan (130) further comprises a second blade (132), wherein the second blade (132) is rotatably connected to the main body (110), and the second blade (132) is located on one side of the refrigerator (150) and faces the refrigerator (150).

6. The heat exchange device for cooking equipment according to claim 5, characterized in that: The fan (130) further comprises a driving member (134) and a rotating shaft (133); the driving member (134) is transmission-connected to the rotating shaft (133) and is used to drive the rotating shaft (133) to rotate; the first blade (131) and the second blade (132) are both connected to the rotating shaft (133) and rotate synchronously with the rotating shaft (133).

7. The heat exchange device for cooking equipment according to claim 5, characterized in that: The refrigerator (150) and the second blade (132) are both located outside the return air space (111) and on a side of the main body (110) facing away from the cooking cavity (210).

8. The heat exchange device for cooking equipment according to claim 4, characterized in that: The heat exchange device (100) further comprises a compressor (170), wherein the compressor (170) is connected to the refrigerator (150) and the heat absorption pipeline (160), and the compressor (170) acts on the refrigerant in the heat absorption pipeline (160).

9. The heat exchange device for cooking equipment according to claim 1, characterized in that: The surface of the heat absorbing element (120) is coated with a food-grade coating.

10. A cooking device, characterized in that: The invention comprises a heat exchange device (100) for cooking equipment as claimed in any one of claims 1 to 9.

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