Blast system and multifunctional cooking equipment
By designing a blower system that automatically adjusts the air inlet area in a multi-function cooking equipment, the problems of poor baking effect during the baking function and excessive air volume during the steaming function are solved, and the effect of precise humidity control and cost reduction is achieved.
Patent Information
- Application Number
- CN202411513143.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-02-14
AI Technical Summary
The existing multi-function cooking equipment cannot accurately control the amount of air in the drum function, resulting in poor baking effect. At the same time, the air valve is costly, and excessive air volume during steaming function affects the effect.
A blowing system including a blower motor, a control motor and an air inlet regulation structure is designed. By adjusting the coordination between the motor and the humidity sensor, the air inlet area is automatically adjusted according to the changes in the inner vessel humidity, and the humidity control is accurately controlled.
It realizes precise control of the baking effect during the baking function to avoid excessive or insufficient baking. At the same time, the air inlet volume is reduced during the steaming function to avoid steam discharge, and reduce equipment costs.
Smart Images
Figure CN119423574A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field related to cooking equipment, and in particular to an air blowing system and a multifunctional cooking equipment. Background Art
[0002] Multifunctional cooking equipment with different functions such as steaming and baking, such as steam ovens, has different requirements for the exhaust function of the inner pot under different functions, and the requirements for the exhaust function under different functions are relatively contradictory. For example, when baking, it is necessary to exhaust the moisture in the inner pot to improve the baking effect, while when steaming, it is necessary to ensure that the steam in the inner pot will not be discharged;
[0003] Currently, most machines are equipped with blowers and air valves to meet the exhaust requirements under different cooking functions. When using the baking function, open the air valve and the blower to blow in outside air and expel the moisture from the inner pot; when using the steaming function, close the air valve and the blower to ensure that the steam in the inner pot is not discharged from the blower.
[0004] However, when the above structure is in the baking function, it is unable to accurately control the amount of outside air blown in according to the humidity changes in the inner pot, and the baking effect cannot be controlled, and over-baking or under-baking may occur. On the other hand, the cost of the air valve is relatively high. If the air valve is cancelled and the blower is always kept blowing, the air volume will be too large, which will affect the effect of the steaming function. Summary of the invention
[0005] Based on this, it is necessary to provide a blowing system and multifunctional cooking equipment that can accurately control humidity and has relatively low cost, in order to address the problems of uncontrollable baking effects and relatively high costs in current cooking equipment with different functions such as steaming and baking.
[0006] The present application first provides an air blowing system, including an air blowing motor, an adjusting motor and an air inlet adjusting structure, wherein the air blowing motor and the adjusting motor are both fixed relative to an inner container, the air inlet adjusting structure is arranged at an air inlet of the air blowing motor, and an air outlet of the air blowing motor is connected to the inner container;
[0007] The regulating motor is dynamically connected to the air inlet regulating structure to change the air inlet area of the air inlet regulating structure.
[0008] In one of the embodiments, the air inlet adjustment structure includes a normally open air inlet and an adjustable air inlet, and the adjustment motor can drive the air inlet adjustment structure to change the area of the adjustable air inlet.
[0009] In one of the embodiments, a humidity sensor is disposed in the inner container, and the humidity sensor is electrically connected to the regulating motor.
[0010] In one embodiment, the air inlet adjustment structure includes a movable ring, a fixed ring and a plurality of baffle assemblies, the air inlet of the blower motor, the movable ring and the fixed ring are connected in sequence, and the fixed ring is fixed relative to the inner tank;
[0011] Each of the baffle plates assembly comprises a baffle plate rotating shaft, a baffle plate and a linkage shaft. The baffle plate rotating shaft passes through the fixing ring in a radial direction of the fixing ring. The baffle plate located on the inner side of the fixing ring and the linkage shaft located on the outer side of the fixing ring are fixed on the baffle plate rotating shaft. A slide groove is radially penetrated through the linkage shaft. A plurality of sliding pins corresponding to the linkage shaft are fixed on the movable ring. The sliding pins are slidably connected to the corresponding slide grooves. One of the baffle plate rotating shafts is coaxial with and fixed to the driving shaft of the adjusting motor.
[0012] In one embodiment, the baffle shafts are arranged at equal intervals along the circumferential direction of the fixing ring, a center block is arranged at the center of the fixing ring, and the baffle shafts extend inwardly to be rotatably connected to the center block.
[0013] In one of the embodiments, a normally open air inlet is provided through the central block in the axial direction, and an adjustable air inlet is provided between the central block and the fixing ring.
[0014] In one of the embodiments, the blower motor is connected to the inner tank through an exhaust pipe, and the sum of the area of the normally open air inlet and the minimum area of the adjustable air inlet is 1 / 4 to 1 / 3 of the cross-sectional area of the exhaust pipe.
[0015] In one embodiment, each of the baffles can be rotated to completely close the adjustable air inlet.
[0016] In one of the embodiments, the blowing system further includes a bracket, and the blowing motor, the regulating motor and the air inlet regulating structure are all arranged on the bracket.
[0017] A second aspect of the present application provides a multifunctional cooking device, comprising an inner pot and the above-mentioned air blowing system, wherein the air blowing system is arranged in the inner pot.
[0018] The above-mentioned air blowing system, by providing an adjustment motor and an air inlet adjustment structure, can change the air inlet area of the air inlet adjustment structure according to the actual needs of the user when air blowing is required (for example, in scenarios such as a baking function or opening the door for exhaust), thereby changing the air inlet volume of the air blowing motor, thereby satisfying the control of the humidity inside the inner tank and improving the versatility of the equipment;
[0019] In addition, when using the steaming function, the air intake area of the air intake regulating structure can be reduced, so that the air intake volume of the blower motor can be controlled at a smaller value. At this time, the blower motor is kept started, and the air intake volume of the blower motor can just prevent steam from being discharged from the blower fan without affecting the effect of the steaming function. Since there is no need to set up an additional air valve, the equipment cost of the blower system of this application is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A three-dimensional diagram of the air blowing system of this application;
[0021] Figure 2 for Figure 1 The enlarged view of point A in the middle;
[0022] Figure 3 for Figure 1 A stereogram from another angle.
[0023] Figure numerals: 100, inner tank; 110, exhaust pipe; 10, adjustment motor; 20, air inlet adjustment structure; 20a, normally open air inlet; 20b, adjustable air inlet; 21, movable ring; 211, sliding pin; 22, fixed ring; 221, center block; 23, baffle assembly; 231, baffle shaft; 232, baffle; 233, linkage shaft; 234, slide groove; 30, humidity sensor; 40, bracket; 50, adapter air pipe; 60, adapter joint. DETAILED DESCRIPTION
[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention 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 invention. However, the present invention 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 invention, so the present invention is not limited by the specific embodiments disclosed below.
[0025] In the description of the present invention, it should be understood that 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 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 the present invention can be understood according to specific circumstances.
[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a 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. A first feature being "below", "below" or "below" a 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.
[0029] It should be noted that when 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. When 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. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0030] Please combine Figure 1 as well as Figure 2 The present application first provides a blowing system, including a blowing motor (not shown), an adjusting motor 10 and an air inlet adjusting structure 20. The blowing motor and the adjusting motor 10 are both fixed relative to the inner liner 100. The air inlet adjusting structure 20 is arranged at the air inlet of the blowing motor, and the air outlet of the blowing motor is connected to the inner liner 100. The adjusting motor 10 is power-connected to the air inlet adjusting structure 20 to change the air inlet area of the air inlet adjusting structure 20.
[0031] In the present application, by setting the regulating motor 10 and the air inlet regulating structure 20, when air blowing is required (for example, in scenarios such as the baking function or the door opening for exhaust), the air inlet area of the air inlet regulating structure 20 can be changed according to the actual needs of the user, thereby changing the air inlet volume of the blower motor, satisfying the control of the humidity inside the liner 100, and improving the versatility of the device;
[0032] In addition, when using the steaming function, the air intake area of the air intake regulating structure 20 can be reduced, so that the air intake volume of the blower motor can be controlled at a smaller value. At this time, the blower motor is kept started, and the air intake volume of the blower motor can just prevent steam from being discharged from the blower fan, while not affecting the effect of the steaming function. Since there is no need to set up an additional air valve, the equipment cost of the blower system of the present application is effectively reduced.
[0033] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the air inlet adjustment structure 20 includes a normally open air inlet 20a and an adjustable air inlet 20b, and the adjustment motor 10 can drive the air inlet adjustment structure 20 to change the area of the adjustable air inlet 20b.
[0034] Such an arrangement ensures that there is no steam leakage at the blower motor, and does not require special settings for the opening and closing amount of the adjustable air inlet 20b, thereby reducing the overall software complexity of the device.
[0035] Specifically, when using the steaming function, it is only necessary to control the air inlet adjustment structure 20 to close or adjust the adjustable air inlet 20b to the minimum value. At this time, the blower motor blows a small amount of air into the inner tank 100 through the normally open air inlet 20a and the gap between the adjustable air inlet 20b, thereby overcoming the micro-pressure inside the inner tank 100 during the steaming function and ensuring that no steam leaks from the blower motor.
[0036] More specifically, the regulating motor 10 is a self-locking motor to prevent the air outlet area of the adjustable air inlet 20b from changing under the action of steam or blast pressure.
[0037] Please combine Figure 2 as well as Figure 3 As shown, in some embodiments, a humidity sensor 30 is disposed in the inner container 100 , and the humidity sensor 30 is electrically connected to the regulating motor 10 .
[0038] When blowing is required, the regulating motor 10 rotates to different angles according to the humidity changes in the inner pot 100 detected by the humidity sensor 30, so as to adjust the air inlet area of the air inlet regulating structure 20 to a corresponding size, so as to achieve the effect that the greater the humidity in the inner pot 100, the greater the blowing volume, thereby achieving automatic and precise humidity control, further reducing the difficulty of cooking and improving the cooking effect.
[0039] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the air inlet adjustment structure 20 includes a movable ring 21, a fixed ring 22 and a plurality of baffle assemblies 23, the air inlet of the blower motor, the movable ring 21 and the fixed ring 22 are connected in sequence, and the fixed ring 22 is fixed relative to the inner liner 100;
[0040] Each baffle assembly 23 includes a baffle shaft 231, a baffle 232 and a linkage shaft 233. The baffle shaft 231 penetrates the fixed ring 22 along the radial direction of the fixed ring 22. The baffle 232 located on the inner side of the fixed ring 22 and the linkage shaft 233 located on the outer side of the fixed ring 22 are fixed on the baffle shaft 231. The linkage shaft 233 is provided with a slide groove 234 along the radial direction. A plurality of sliding pins 211 corresponding to the linkage shaft 233 are fixed on the movable ring 21. The sliding pins 211 are slidably connected to the corresponding slide grooves 234. One of the baffle shafts 231 is coaxial with and fixed to the driving shaft of the adjusting motor 10.
[0041] Specifically, when the air inlet area of the air inlet adjustment structure 20 needs to be adjusted, the adjustment motor 10 drives one of the baffle shafts 231 to rotate through the driving shaft, and the rotation of the baffle shaft 231 drives the baffle 232 and the linkage shaft 233 located in the same baffle assembly 23 to rotate, wherein, due to the sliding fit between the slide groove 234 and the corresponding slide pin 211, and the fixed ring 22 is fixed relative to the inner liner 100, the rotation of the linkage shaft 233 drives the movable ring 21 to rotate relative to the fixed ring 22 through the corresponding slide pin 211;
[0042] Furthermore, the rotation of the movable ring 21 drives the other sliding pins 211 to rotate. Similarly, under the sliding cooperation between the sliding groove 234 and the corresponding sliding pin 211, each sliding pin 211 drives the corresponding linkage shaft 233, the baffle rotating shaft 231 and the baffle 232 to rotate together.
[0043] It should be noted that the above movement steps all occur synchronously, so from a macroscopic perspective, when the adjustment motor 10 is started, it will drive the baffles 232 to rotate synchronously, thereby changing the air inlet area of the air inlet adjustment structure 20, and the same applies when the adjustment motor 10 is reversed.
[0044] Of course, in some other embodiments, the air inlet adjustment structure 20 may also adopt other structures, as long as the air inlet area can be adjusted as needed to change the air inlet volume of the blower motor, and the present application does not make further limitations here.
[0045] Please combine Figure 1 as well as Figure 2As shown, in some embodiments, each baffle shaft 231 is arranged at equal intervals along the circumferential direction of the fixed ring 22, a center block 221 is arranged at the center of the fixed ring 22, and each baffle shaft 231 extends inward to be rotatably connected to the center block 221; so that one side of each baffle shaft 231 is rotatably connected to the fixed ring 22, and the other side is rotatably connected to the center block 221, thereby improving the connection stability of each baffle shaft 231 and improving the reliability of the blowing system of the present application.
[0046] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, a normally open air inlet 20 a is provided through the center block 221 in the axial direction, and an adjustable air inlet 20 b is provided between the center block 221 and the fixing ring 22 .
[0047] Of course, in some other embodiments, the normally open air inlet 20a and the adjustable air inlet 20b may also be of other shapes or be opened at other positions, as long as both are connected to the air inlet of the blower motor and the normally open air inlet 20a remains in a normally open state, the area of the adjustable air inlet 20b can be adjusted as needed, and the present application does not give examples one by one here.
[0048] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the blower motor is connected to the inner tank 100 through the exhaust pipe 110, and the sum of the area of the normally open air inlet 20a and the minimum area of the adjustable air inlet 20b is 1 / 4 to 1 / 3 of the cross-sectional area of the exhaust pipe 110.
[0049] It should be noted that the sum of the area of the normally open air inlet 20a and the minimum area of the adjustable air inlet 20b is the actual air inlet area of the blower motor. If the actual air inlet area is too large, the blower motor will blow too much air into the inner pot 100 during the steaming function, which may affect the steaming and cooking effect. Conversely, if the area of the normally open air inlet 20a is too small, the air inlet cannot overcome the micro-pressure inside the inner pot 100 during the steaming function, which may cause steam to leak from the blower motor, which will also affect the steaming and cooking effect.
[0050] In the present application, the actual air intake area of the blower motor is controlled to 1 / 4 to 1 / 3 of the cross-sectional area of the exhaust pipe 110, so that the air intake volume of the blower motor and the micro-pressure inside the inner tank 100 can be balanced. While controlling the steam to not leak from the blower motor, the blower air volume is also controlled not to enter the inner tank 100 in large quantities, thereby ensuring the normal operation of the steaming function.
[0051] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, each baffle 232 can be rotated to completely close the adjustable air inlet 20b; at this time, the area of the normally open air inlet 20a is the actual air inlet area of the blower motor.
[0052] Preferably, the area of the normally open air inlet 20a is 1 / 4 to 1 / 3 of the cross-sectional area of the exhaust pipe 110. Based on the above-mentioned possible problems, if the area of the normally open air inlet 20a is too large, the effect of changing the air intake area of the adjustable air inlet 20b during the baking function will be deteriorated. Therefore, controlling the area of the normally open air inlet 20a to 1 / 4 to 1 / 3 of the cross-sectional area of the exhaust pipe 110 can further improve the control accuracy of the humidity during the baking function.
[0053] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the blowing system further includes a bracket 40 , and the blowing motor, the regulating motor 10 and the air inlet regulating structure 20 are all disposed on the bracket 40 .
[0054] By arranging the blower motor, the regulating motor 10 and the air inlet regulating structure 20 on the bracket 40, the blower system is modularly designed, so that the assembly of the blower system can be completed independently in advance. On the final assembly line, it is only necessary to install and fix the bracket 40 to the inner tank 100 and complete the connection of the corresponding pipes and lines, thereby effectively reducing the installation difficulty of the blower system of the present application.
[0055] Specifically, the blower system also includes an adapter air pipe 50 and an adapter joint 60. The air outlet of the blower motor is connected to one end of the adapter air pipe 50, the other end of the adapter air pipe 50 is connected to one end of the adapter joint 60, and the other end of the adapter joint 60 is connected to the exhaust pipe 110, so that the outside air is blown into the inner tank 100 in the order of the blower motor, the adapter air pipe 50, the adapter joint 60 and the exhaust pipe 110.
[0056] A second aspect of the present application provides a multifunctional cooking device, comprising an inner pot 100 and the above-mentioned air blowing system, wherein the air blowing system is arranged in the inner pot 100 .
[0057] 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.
[0058] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.
Claims
1. A blast system, characterized in that: It comprises a blower motor, an adjustment motor (10) and an air inlet adjustment structure (20), wherein the blower motor and the adjustment motor (10) are both fixed relative to an inner liner (100), the air inlet adjustment structure (20) is arranged at the air inlet of the blower motor, and the air outlet of the blower motor is in communication with the inner liner (100); The regulating motor (10) is connected to the air inlet regulating structure (20) by power so as to change the air inlet area of the air inlet regulating structure (20).
2. The air blowing system according to claim 1, characterized in that: The air inlet adjustment structure (20) comprises a normally open air inlet (20a) and an adjustable air inlet (20b), and the adjustment motor (10) is capable of driving the air inlet adjustment structure (20) to change the area of the adjustable air inlet (20b).
3. The air blowing system according to claim 1, characterized in that: A humidity sensor (30) is arranged in the inner container (100), and the humidity sensor (30) is electrically connected to the regulating motor (10).
4. The air blowing system according to claim 1, characterized in that: The air inlet adjustment structure (20) comprises a movable ring (21), a fixed ring (22) and a plurality of baffle assemblies (23); the air inlet of the blower motor, the movable ring (21) and the fixed ring (22) are connected in sequence; and the fixed ring (22) is fixed relative to the inner container (100); Each of the baffle components (23) comprises a baffle rotating shaft (231), a baffle (232) and a linkage shaft (233); the baffle rotating shaft (231) penetrates the fixing ring (22) in the radial direction of the fixing ring (22); the baffle (232) located on the inner side of the fixing ring (22) and the linkage shaft (233) located on the outer side of the fixing ring (22) are fixed on the baffle rotating shaft (231); a slide groove (234) is radially penetrated through the linkage shaft (233); a plurality of sliding pins (211) corresponding to the linkage shaft (233) are fixed on the movable ring (21); the sliding pins (211) are slidably connected to the corresponding slide grooves (234); one of the baffle rotating shafts (231) is coaxial with and fixed to the driving shaft of the regulating motor (10).
5. The air blowing system according to claim 4, characterized in that: The baffle rotating shafts (231) are arranged at equal intervals along the circumferential direction of the fixing ring (22); a center block (221) is arranged at the center of the fixing ring (22); and the baffle rotating shafts (231) extend inwardly to be rotatably connected to the center block (221).
6. The air blowing system according to claim 5, characterized in that: A normally open air inlet (20a) is provided on the central block (221) in an axial direction, and an adjustable air inlet (20b) is provided between the central block (221) and the fixing ring (22).
7. The air blowing system according to claim 6, characterized in that: The blower motor is connected to the inner tank (100) via an exhaust pipe (110), and the sum of the area of the normally open air inlet (20a) and the minimum area of the adjustable air inlet (20b) is 1 / 4 to 1 / 3 of the cross-sectional area of the exhaust pipe (110).
8. The air blowing system according to claim 6, characterized in that: Each of the baffles (232) can be rotated to completely close the adjustable air inlet (20b).
9. The air blowing system according to claim 1, characterized in that: The air blowing system further comprises a bracket (40), and the air blowing motor, the regulating motor (10) and the air inlet regulating structure (20) are all arranged on the bracket (40).
10. A multifunctional cooking device, characterized in that: It comprises an inner container (100) and an air blowing system as claimed in any one of claims 1 to 9, wherein the air blowing system is arranged in the inner container (100).