An integrated stove fan system with equivalent left and right air volumes and a control method thereof

Abstract

The present invention belongs to the technical field of integrated stoves, and discloses an integrated stove fan system with equivalent left and right air volume and a control method thereof, wherein a two-way air outlet volute is installed at the bottom of the inner side of the integrated stove body, a left air outlet hood and a right air outlet hood are respectively installed at the left and right outlet outer ends of the two-way air outlet volute, and an impeller is installed concentrically with the two-way air outlet volute; a valve plate is located inside the two-way air outlet volute, and is used to block the air outlet; a valve plate connecting rod is connected to the valve plate, and is used to pull the valve plate to contract; a stepping motor is connected to the valve plate connecting rod, and is used to drive the valve plate to rotate to the left air outlet or the right air outlet position. In the present invention, the integrity of the volute profile can be ensured by using the valve plate and the air outlet hood in conjunction with the two-way air outlet volute, and the resistance loss of gas flow can be reduced, so that the left and right equal air volume exhaust of the integrated stove can be realized; an electromagnetic adsorption connecting rod device is adopted, and the left and right equivalent air outlet switching can be realized without disassembling the entire integrated stove, and the operation method is simple and convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of integrated stoves, and in particular relates to an integrated stove fan system with equivalent left and right air outlet volumes and a control method thereof. Background Art

[0002] Integrated stoves, also known as environmentally friendly stoves or integrated environmentally friendly stoves in the industry, are kitchen appliances that integrate multiple functions such as range hoods, gas stoves, disinfection cabinets, and storage cabinets. They have the advantages of saving space, good fume extraction, energy saving, low consumption, and environmental protection. The general integrated stove has an oil absorption rate of 95%. The higher the oil fume absorption rate, the better the quality. Some brands of integrated stoves have an oil fume absorption rate of up to 99.95%.

[0003] The fan system is an important component of the integrated stove, which usually consists of several parts such as the fan, impeller, and air outlet pipe. Since the fan uses a multi-blade centrifugal fan, its air outlet is directional, and the air performance of the air outlet along the spiral line of the volute is significantly better than that of the other side. Therefore, the different positions of the air outlet of the range hood will make the same model of integrated stoves have different oil fume absorption effects when used by different users.

[0004] One of the problems that still exists in current integrated stove products is that the direction of the external smoke pipe is uncertain, and it is inconvenient to switch the connection direction between the integrated stove and the smoke pipe. To address this problem, companies need to specially design two models with left and right air outlet directions to adapt to the direction of the external smoke pipe. If the wrong model is selected, it is necessary to disassemble and assemble the fan to switch the left and right air outlet directions. Designing two models will increase production and manufacturing costs, and the forward and reverse installation of the fan will also cause differences in parameters such as air volume and air pressure.

[0005] A bottom-mounted fan integrated stove (Announcement No. CN216203599U) discloses a bottom-mounted integrated stove with left and right air outlets. The invention adopts a dual fan system to achieve left and right air outlets, which increases the power consumption of the kitchen integrated stove.

[0006] A modular integrated stove with left and right air outlet (Announcement No. CN212901603U) To change the air outlet direction, the patent first rotates the bellows 180 degrees forward and backward to swap the left and right positions of the smoke outlets on one side of the bellows, and then covers the smoke inlet that is not connected to the smoke inlet slot to change the smoke exhaust direction. The patent adopts the method of disassembling the integrated stove to switch the left and right air outlets, which is very cumbersome and troublesome.

[0007] Through the above analysis, the problems and defects of the prior art are as follows:

[0008] (1) The same model of integrated stove has different fume extraction effects when used by different users. It can only meet the maximum air volume on one side, while the air volume on the other side is smaller.

[0009] (2) The use of a dual fan system to achieve left and right air outlets increases power consumption and also increases noise during cooking in the kitchen.

[0010] (3) The existing operation of switching the air outlet of the integrated stove to the left and right by disassembling is very cumbersome and troublesome, and the entire integrated stove needs to be disassembled and installed, which increases the difficulty of operation and labor costs. Summary of the invention

[0011] In view of the problems existing in the prior art, the present invention provides an integrated stove fan system with equivalent left and right air outlet volumes and a control method thereof.

[0012] The present invention is implemented as follows: an integrated stove fan system with equivalent left and right air volumes comprises: an integrated stove body, a two-way air outlet volute, a left air outlet cover, a right air outlet cover, an impeller, a valve plate, a valve plate connecting rod and a stepping motor;

[0013] The two-way air outlet volute is installed at the bottom of the inner side of the integrated stove body, the left air outlet cover and the right air outlet cover are respectively installed at the left and right outlet outer ends of the two-way air outlet volute, and the impeller is installed concentrically with the two-way air outlet volute;

[0014] The valve plate is located inside the two-way air outlet volute and is used to block the air outlet;

[0015] The valve plate connecting rod is connected to the valve plate and is used to pull the valve plate to contract;

[0016] The stepper motor is connected to the valve plate connecting rod and is used to drive the valve plate to rotate to the left air outlet or the right air outlet position.

[0017] Furthermore, the valve plate connecting rod includes a fixed iron core and a moving iron core, the fixed iron core is fixedly connected to the moving iron core through a spring, a coil is wound around the outer ring of the fixed iron core, and the outer end of the moving iron core is fixedly connected to the valve plate.

[0018] Furthermore, the integrated stove body includes an integrated stove head and a negative pressure chamber, the integrated stove head is connected to the upper end of the negative pressure chamber by bolts and nuts, and the two-way air outlet volute is installed inside the negative pressure chamber.

[0019] Furthermore, the outer end of the left air outlet hood is fixedly connected to the left air outlet pipe via a throat clamp, and the outer end of the right air outlet hood is fixedly connected to the right air outlet pipe via a throat clamp.

[0020] Furthermore, the arc shape of the valve plate fits the logarithmic spiral line of the two-way air outlet volute.

[0021] Furthermore, the stepper motor is connected to the valve plate connecting rod via a key.

[0022] Furthermore, two valve plate connecting rods are provided, and both valve plate connecting rods are connected to the stepper motor shaft through a key, and the outer ends of the two valve plate connecting rods are respectively connected to the two ends of the valve plate.

[0023] Furthermore, the two-way air outlet volute is installed at the bottom of the inner side of the integrated stove body through a bracket and fixing bolts.

[0024] Another object of the present invention is to provide a control method for an integrated stove fan system with equal left and right air volumes, the control method for an integrated stove fan system with equal left and right air volumes comprising:

[0025] Step 1: When air is required to be discharged from one side, the coil inside the valve plate connecting rod is energized to make the fixed iron core magnetically attract the moving iron core to drive the valve plate to retract a certain distance;

[0026] Step 2: The stepper motor rotates to drive the valve connecting rod to rotate to the position of the air outlet on the other side;

[0027] Step three, cut off the power to the coil inside the valve connecting rod, the fixed iron core loses its magnetism, and under the action of the spring force, the moving iron core presses the valve plate to get stuck in the air outlet on the other side, so that the air outlet on the side where the air is required can achieve the maximum air volume.

[0028] In combination with the above technical solutions and the technical problems solved, please analyze the advantages and positive effects of the technical solutions to be protected by the present invention from the following aspects:

[0029] First, in view of the technical problems existing in the above-mentioned prior art and the difficulty of solving the problems, the technical solutions to be protected by the present invention and the results and data during the research and development process are closely combined to analyze in detail and deeply how the technical solutions of the present invention solve the technical problems, and some creative technical effects brought about after solving the problems. The specific description is as follows:

[0030] (1) In the present invention, the valve plate and the air outlet cover are used in conjunction with the two-way air outlet volute, which can ensure the integrity of the volute profile, reduce the resistance loss of gas flow, and achieve equal air volume exhaust on the left and right sides of the integrated stove;

[0031] (2) The present invention adopts an electromagnetic adsorption connecting rod device, which can realize the switching of left and right equivalent air outlets without disassembling the integrated stove, and the operation method is simple and convenient;

[0032] (3) The present invention adopts a single multi-blade centrifugal fan system to achieve equivalent air outlet on the left and right sides of the integrated stove, which not only reduces the space occupied by the fan on the integrated stove, but also does not increase the power consumption of the integrated stove. It also avoids the user from making the wrong model selection when purchasing.

[0033] Second, considering the technical solution as a whole or from the perspective of the product, the technical effects and advantages of the technical solution to be protected by the present invention are described in detail as follows:

[0034] The present invention adopts a set of fan systems to meet the needs of two models with left air outlet directions and right air outlet directions, thereby reducing production and manufacturing costs for enterprises.

[0035] Third, as auxiliary evidence of the creativity of the claims of the present invention, it is also reflected in the expected benefits and commercial value after the transformation of the technical solution of the present invention: the technical solution of the present invention is undergoing technical cooperation with the enterprise, and the enterprise will put the solution into production and sales in the future. According to the development trend of the domestic integrated stove industry, and by analogy with the sales volume of the enterprise's integrated stoves, the future production and sales can bring the enterprise hundreds of millions of yuan in revenue. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall oil smoke flow of an integrated stove fan system with equivalent left and right air outlet volumes provided by an embodiment of the present invention;

[0037] Figure 2 It is a schematic diagram of the installation of a two-way air outlet volute provided in an embodiment of the present invention;

[0038] Figure 3 Schematic diagram of the flow of left-outlet oil smoke provided by an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the right-outlet oil smoke flow provided by an embodiment of the present invention;

[0040] Figure 5 Schematic diagram of the position of the valve plate and the connecting rod when the air is discharged from the left side provided by an embodiment of the present invention;

[0041] Figure 6 Schematic diagram of the position of the valve plate and the connecting rod when the air is discharged from the right side provided by an embodiment of the present invention;

[0042] Figure 7 is a schematic diagram of a two-way air outlet volute and an air outlet cover provided in an embodiment of the present invention;

[0043] Figure 8 is a schematic structural diagram of a valve plate connecting rod provided in an embodiment of the present invention;

[0044] Fig. 9 is a schematic diagram of a valve sheet provided by an embodiment of the present invention;

[0045] Fig.10 It is a numerical simulation velocity cloud diagram of the left air outlet provided by an embodiment of the present invention;

[0046] Fig.11 It is a numerical simulation velocity cloud diagram of right outlet wind provided by an embodiment of the present invention;

[0047] In the figure: 1. Integrated stove as a whole; 11. Integrated stove head; 12. Negative pressure chamber; 2. Two-way air outlet volute; 3. Left air outlet hood; 31. Left air outlet duct; 4. Right air outlet hood; 41. Right air outlet duct; 5. Impeller; 6. Valve plate; 7. Valve plate connecting rod; 71. Coil; 72. Fixed iron core; 73. Spring; 74. Moving iron core; 8. Stepper motor. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] 1. Explanatory Examples In order to enable those skilled in the art to fully understand how to implement the present invention, this section provides an illustrative example that expands and describes the technical solution of the claims.

[0050] like Figures 1 to 9 As shown, the present invention provides an integrated stove fan system with equivalent left and right air volumes, the system specifically comprising: an integrated stove body 1, a two-way air outlet volute 2, a left air outlet cover 3, a right air outlet cover 4, an impeller 5, a valve plate 6, a valve plate connecting rod 7 and a stepping motor 8;

[0051] The integrated stove body 1 includes an integrated stove head 11 and a negative pressure chamber 12;

[0052] The left air outlet cover 3 includes a left air outlet pipe 31;

[0053] The right air outlet cover 4 includes a right air outlet pipe 41;

[0054] The valve plate connecting rod 7 includes a coil 71 , a fixed iron core 72 , a spring 73 and a movable iron core 74 .

[0055] The integrated stove body 1 is connected to the integrated stove head 11 through bolts and nuts, and the integrated stove head 11 is connected to the negative pressure chamber 12 through bolts and nuts.

[0056] The negative pressure chamber 12 is fixedly connected with a two-way air outlet volute 2 by bolts and nuts, and the two-way air outlet volute 2 is fixedly connected to a left air outlet cover 3 and a right air outlet cover 4 by bolts and nuts. The left air outlet cover 3, the right air outlet cover 4 and the left air outlet pipe 31 and the right air outlet pipe 32 are fixedly connected by throat clamps.

[0057] The stepper motor 8 is connected to the valve plate connecting rod 7 via a key, and the valve plate connecting rod 7 is fixedly connected to the valve plate 6 via a moving iron core 72 .

[0058] The fixed iron core 72 inside the valve plate connecting rod 7 is fixedly connected to the moving iron core 74 by a spring 73, and the coil 71 is wound around the outer ring of the fixed iron core 72. When the coil 71 is energized, the fixed iron core 72 acquires magnetism, and the fixed iron core 72 is attracted by the magnetic force of the fixed iron core, and the valve plate 6 is pulled and contracted by the valve plate connecting rod 7, and the spring 73 is compressed at the same time.

[0059] The valve plate 6 is pulled and retracted by the valve plate connecting rod 7, and the stepping motor 8 rotates to control the valve plate 6 to rotate to a certain angle to the left or right air outlet position.

[0060] When the coil 71 is powered off, the fixed iron core 72 loses its magnetism, the magnetic force between the fixed iron core 72 and the moving iron core 74 disappears, the compressed spring 73 returns to its original state, and the moving iron core 74 presses the valve plate 6 against the inner wall of the left or right air outlet position of the two-way air outlet volute 2.

[0061] The working principle of the present invention for controlling the left and right air outlets is as follows: when the coil 71 is energized, the fixed iron core 72 acquires magnetism, the fixed iron core 72 is attracted by the magnetic force of the fixed iron core, the valve plate 6 is pulled and contracted by the valve plate connecting rod 7, and at the same time the spring 73 is compressed, and the stepping motor 8 rotates to control the valve plate 6 to rotate a certain angle to the left or right air outlet position.

[0062] When the coil 71 is powered off, the fixed iron core 72 loses its magnetism, the magnetic force between the fixed iron core 72 and the moving iron core 74 disappears, the compressed spring 73 returns to its original state, and the moving iron core 74 presses the valve plate 6 against the inner wall of the left or right air outlet position of the two-way air outlet volute 2.

[0063] The two-way air outlet volute in the present invention is used in conjunction with the left and right air outlet covers. When the left air outlet is required, the coil inside the valve plate connecting rod is energized so that the fixed iron core has magnetism to attract the moving iron core to drive the valve plate to shrink a certain distance; then the stepper motor rotates to drive the valve plate connecting rod to rotate to the position of the right air outlet; at this time, the coil inside the valve plate connecting rod is powered off, the fixed iron core loses its magnetism, and under the action of the spring force, the moving iron core presses the valve plate and is stuck in the right air outlet. The arc shape of the valve plate just fits the logarithmic spiral line of the volute, thereby ensuring the integrity of the volute profile and maximizing the maximum air volume of the left air outlet.

[0064] When right air outlet is required, the coil inside the valve plate connecting rod is energized so that the fixed iron core has magnetism to attract the moving iron core and drive the valve plate to shrink a certain distance; then the stepper motor rotates, driving the valve plate connecting rod to rotate to the position of the left air outlet; at this time, the coil inside the valve plate connecting rod is de-energized, the fixed iron core loses its magnetism, and under the action of the spring force, the moving iron core presses the valve plate and is stuck in the left air outlet. The arc shape of the valve plate also fits the logarithmic spiral of the volute, ensuring the integrity of the volute profile and maximizing the maximum air volume of the right air outlet.

[0065] 2. Application Examples: In order to prove the creativity and technical value of the technical solution of the present invention, this section provides application examples of the technical solution of the claims on specific products or related technologies.

[0066] An embodiment of the present invention provides an integrated stove with equivalent left and right air volumes, and the integrated stove with equivalent left and right air volumes is installed with the integrated stove fan system with equivalent left and right air volumes.

[0067] 3. Evidence of the effects of the embodiments. The embodiments of the present invention have achieved some positive effects during the development or use process, and indeed have great advantages over the prior art. The following content is described in conjunction with the data, charts, etc. of the test process.

[0068] The present invention verifies the real exhaust effect of the integrated stove with equal left and right air volume through numerical simulation and experiment. It can be seen from the numerical simulation and experiment that the integrated stove of the present invention can indeed achieve the exhaust effect of equal left and right air volume. Fig.10 It is a numerical simulation velocity cloud diagram of the left air outlet provided by an embodiment of the present invention; Fig.11 It is a numerical simulation velocity cloud diagram of the right air outlet provided by an embodiment of the present invention; the simulation results of the left and right air outlets of the integrated stove are shown in Table 1.

[0069] Table 1 Simulation results of left and right air outlets of integrated stove

[0070] Air volume (m3 / min) Maximum static pressure(Pa) Left air outlet 18.2 950 Right air outlet 17.6 925

[0071] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. An integrated stove fan system with equivalent air volume on the left and right sides, characterized in that: The integrated stove fan system with equivalent left and right air volumes is provided with: Two-way air outlet volute; The two-way air outlet volute is installed at the bottom of the inner side of the integrated stove body, the left air outlet cover and the right air outlet cover are respectively installed at the left and right outlet outer ends of the two-way air outlet volute, and the fan impeller is installed concentrically with the two-way air outlet volute; The valve plate is located inside the two-way air outlet volute and is used to block the air outlet; The valve plate connecting rod is connected to the valve plate and is used to drive the valve plate to extend and retract; The stepper motor is connected to the valve plate connecting rod and is used to drive the valve plate to rotate to the left air outlet or the right air outlet position; The valve plate connecting rod comprises a fixed iron core and a moving iron core, the fixed iron core is fixedly connected to the moving iron core through a spring, a coil is wound around the outer ring of the fixed iron core, and the outer end of the moving iron core is fixedly connected to the valve plate; The arc shape of the valve plate fits the logarithmic spiral line of the two-way air outlet volute; The valve plate connecting rods are provided with two, and the two valve plate connecting rods are connected to the stepper motor shaft through a key, and the outer ends of the two valve plate connecting rods are respectively connected to the two ends of the valve plate.

2. The integrated stove fan system with equal left and right air volume as claimed in claim 1, characterized in that: The integrated stove body comprises an integrated stove head and a negative pressure chamber. The integrated stove head is connected to the upper end of the negative pressure chamber through bolts and nuts, and the two-way air outlet volute is installed inside the negative pressure chamber.

3. The integrated stove fan system with equal air volume on the left and right sides as claimed in claim 1, characterized in that: The outer end of the left air outlet hood is fixedly connected to the left air outlet pipe through a throat hoop, and the outer end of the right air outlet hood is fixedly connected to the right air outlet pipe through a throat hoop.

4. The integrated stove fan system with equal left and right air volumes as claimed in claim 1, characterized in that: The two-way air outlet volute is installed at the bottom of the inner side of the integrated stove body through a bracket and fixing bolts.

5. A control method for implementing the integrated stove fan system with equivalent left and right air volumes as claimed in any one of claims 1 to 4, characterized in that: The control method of the integrated stove fan system with equivalent left and right air volumes includes: Step 1: When air is required to be discharged from one side, the coil inside the valve plate connecting rod is energized to make the fixed iron core magnetically attract the moving iron core to drive the valve plate to retract a certain distance; Step 2: The stepper motor rotates to drive the valve connecting rod to rotate to the position of the air outlet on the other side; Step three, cut off the power to the coil inside the valve connecting rod, the fixed iron core loses its magnetism, and under the action of the spring force, the moving iron core presses the valve plate to get stuck in the air outlet on the other side, so that the air outlet on the side where the air is required can achieve the maximum air volume.

6. An integrated stove with equal air volume on the left and right sides, characterized in that: The integrated stove with equivalent left and right air outlet volumes is installed with the integrated stove fan system with equivalent left and right air outlet volumes as described in any one of claims 1 to 4.

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