CN114593448A

CN114593448A - Energy-saving range hood based on thermoelectric effect

Info

Publication number: CN114593448A
Application number: CN202210423938.9A
Authority: CN
Inventors: 赵治成
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-06-07

Abstract

The invention discloses an energy-saving range hood based on a thermoelectric effect, which comprises a range hood body and a ventilation pipe, wherein the top of the range hood body is fixedly connected with the ventilation pipe, the ventilation pipe is communicated with the inside of the range hood body, the inner surface of the ventilation pipe is symmetrically and fixedly connected with two supporting blocks, a retainer is fixedly connected between the two symmetrically arranged supporting blocks, the inner surface of the retainer is rotatably connected with an exhaust fan blade, the inner surface of the ventilation pipe, which is positioned above the exhaust fan blade, is fixedly connected with a heated plate, the inner surface of the ventilation pipe, which is close to the upper part of the heated plate, is fixedly connected with a cooling plate, the inner surface of the ventilation pipe, which is close to the cooling plate, is fixedly connected with a control box, and a conductive block is slidably connected in the control box. The invention relates to the technical field of kitchen appliances, which generates current through the temperature difference between a heated plate and a cooling plate so as to connect a circuit with exhaust fan blades and drive the exhaust fan blades to operate.

Description

Energy-saving range hood based on thermoelectric effect

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to an energy-saving range hood based on a thermoelectric effect.

Background

The range hood is a kitchen appliance for purifying the kitchen environment, and along with the increasing improvement of the life quality of people, the range hood becomes essential kitchen equipment for modern families. The kitchen ventilator is arranged above a kitchen stove, can rapidly pump away waste burnt by the stove and oil fume harmful to human bodies generated in the cooking process, and exhaust the waste and the oil fume to the outside, reduces indoor pollution, purifies air, and has the safety guarantee effects of gas defense and explosion prevention.

Generally, the basic working principle of the range hood is to utilize a front centrifugal fan to generate negative pressure in a smoke collection cavity so as to draw oil smoke out of a kitchen, but because the power of the centrifugal fan is generally higher, if the centrifugal fan is always started during cooking, the electric energy consumed by the range hood is increased, and thus, the electric energy is greatly lost.

Therefore, an energy-saving range hood based on thermoelectric effect is provided to solve the above problems.

Disclosure of Invention

The invention aims to solve the problem that the power of a centrifugal fan is generally higher, and if the centrifugal fan is started all the time during cooking, the electric energy consumed by a range hood is increased, so that the electric energy is greatly consumed, and the energy-saving range hood based on the thermoelectric effect is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

an energy-saving range hood based on thermoelectric effect comprises a range hood body and a ventilation pipe, wherein the top of the range hood body is fixedly connected with the ventilation pipe, the ventilation pipe is communicated with the inside of the range hood body, two supporting blocks are symmetrically and fixedly connected with the inner surface of the ventilation pipe, a retainer is symmetrically arranged between the two supporting blocks, a fan blade is rotatably connected to the inner surface of the retainer, a heating plate is fixedly connected to the inner surface of the ventilation pipe above the fan blade, a cooling plate is fixedly connected to the inner surface of the ventilation pipe above the heating plate, a control box is fixedly connected to the inner surface of the ventilation pipe above the cooling plate, a conductive block is slidably connected in the control box, a rectangular groove is formed in the upper surface of the conductive block in a penetrating manner, a fixed block is fixedly connected to the inner surface of the rectangular groove, the electrode control device is characterized in that a guide rod is fixedly connected between two surfaces of the rectangular groove and penetrates through the fixing block, an electrode is fixedly connected to one end of the control box, an electromagnet is fixedly connected to the other end, away from the electrode, of the control box, a spring is sleeved on the outer surface of the guide rod, one end of the spring abuts against the inner surface of the rectangular groove, and the other end of the spring abuts against the fixing block close to one side of the electrode.

Preferably, the exhaust fan blade, the electrode and the external power supply are electrically connected.

Preferably, two ends of the heated plate are respectively and fixedly connected with two guide plates in an inclined manner.

Preferably, the width of the heated plate and the cooling plate is smaller than the width of the ventilation duct.

Preferably, the heated plate, the cooling plate and the electromagnet are electrically connected.

Preferably, the upper surface of the exhaust fan blade close to the middle position thereof is fixedly connected with a rotating shaft, the top of the rotating shaft penetrates through the upper surface of the retainer and is fixedly connected with a plurality of scrapers, and the scrapers are abutted against the lower surface of the heated plate.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the energy-saving range hood based on the thermoelectric effect, the exhaust fan blade, the conductive block, the heated plate, the cooling plate, the electromagnet and other components are used in a matched mode, when a user needs to use the range hood body, the conductive block is communicated with the electrode under the thrust of the spring, and at the moment, the external power supply drives the exhaust fan blade to rotate through the motor, so that the range hood body can adsorb oil smoke in a kitchen; when the exhaust fan blade rotates, oil smoke in a kitchen is exhausted through the ventilation pipe, heat brought by the oil smoke passes through the heated plate, the heated plate absorbs part of the heat, and wind blown out by the exhaust fan blade is guided to two sides of the ventilation pipe through the guide plate, so that the cooling plate reduces contact with the heat as much as possible, and current is generated by utilizing the temperature difference between the heated plate and the cooling plate, thereby driving the exhaust fan blade to rotate;

2. according to the energy-saving range hood based on the thermoelectric effect, through the arrangement of the conductive block, the electromagnet, the exhaust fan blade and other components, according to the thermoelectric effect, when electron holes in a heated object move from a high-temperature area to a low-temperature area along with a temperature gradient, current or charge accumulation can be generated; when the difference between the temperature of the heated plate and the temperature of the cooling plate changes to generate current, the electromagnet has magnetism when being electrified according to the characteristics of the electromagnet, and the magnetism disappears after the electromagnet is powered off; because current can be generated between the heated plate and the cooling plate, the electromagnet can generate magnetism by the current, so that the electromagnet can attract the conductive block to be communicated with the conductive block, and after the conductive block is communicated with the electromagnet, the current generated between the heated plate and the cooling plate can be directly communicated with the exhaust fan blade, so that the exhaust fan blade is driven to rotate, and the loss of electric energy is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an energy-saving range hood based on thermoelectric effect according to the present invention;

FIG. 2 is a schematic diagram of a right-view structure of an energy-saving range hood based on thermoelectric effect according to the present invention;

fig. 3 is a schematic top view of an energy-saving range hood based on thermoelectric effect according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

fig. 5 is a schematic cross-sectional structural view of an energy-saving range hood based on thermoelectric effect according to the present invention.

In the figure: 1. a range hood body; 2. a vent pipe; 3. a support block; 4. a holder; 5. an exhaust fan blade; 6. a heated plate; 7. a cooling plate; 8. a control box; 9. a conductive block; 10. a rectangular groove; 11. a guide bar; 12. a spring; 13. a fixed block; 14. an electromagnet; 15. a baffle; 16. a rotating shaft; 17. a scraper; 18. and an electrode.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1-4, an energy-saving range hood based on thermoelectric effect comprises a range hood body 1 and a vent pipe 2, wherein the top of the range hood body 1 is fixedly connected with the vent pipe 2, the vent pipe 2 is communicated with the inside of the range hood body 1, the inner surface of the vent pipe 2 is symmetrically and fixedly connected with two supporting blocks 3, a retainer 4 is fixedly connected between the two symmetrically arranged supporting blocks 3, the inner surface of the retainer 4 is rotatably connected with an exhaust fan blade 5, the inner surface of the vent pipe 2 above the exhaust fan blade 5 is fixedly connected with a heated plate 6, the inner surface of the vent pipe 2 above the heated plate 6 is fixedly connected with a cooling plate 7, the inner surface of the vent pipe 2 above the cooling plate 7 is fixedly connected with a control box 8, a conductive block 9 is slidably connected in the control box 8, a rectangular groove 10 is formed in the upper surface of the conductive block 9 in a penetrating manner, and a fixed block 13 is fixedly connected on the inner surface of the control box 8 above the rectangular groove 10, fixedly connected with guide arm 11 between the two surfaces of rectangular channel 10, guide arm 11 runs through fixed block 13 and sets up, and the one end fixedly connected with electrode 18 of control box 8, the other end fixedly connected with electro-magnet 14 of electrode 18 is kept away from to control box 8, and the surface cover of guide arm 11 is equipped with spring 12, and the one end of spring 12 offsets with the internal surface of rectangular channel 10, and the other end of spring 12 offsets with fixed block 13 that is close to electrode 18 one side.

Furthermore, the exhaust fan blade 5 and the electrode 18 are electrically connected with an external power supply. When the user needs to use the range hood body 1, the conducting block 9 is communicated with the electrode 18 by the thrust of the spring 12, and at the moment, the external power supply drives the exhaust fan blade 5 to rotate through the motor, so that the range hood body adsorbs the oil smoke in a kitchen.

Furthermore, two ends of the heated plate 6 are respectively fixedly connected with two guide plates 15 in an inclined manner. When the exhaust fan blade 5 rotates, oil smoke in a kitchen is exhausted through the ventilation pipe 2, heat brought by the oil smoke passes through the heated plate 6, the heated plate 6 absorbs a part of the heat, air blown out by the exhaust fan blade 5 is guided to two sides of the ventilation pipe 2 through the guide plate 15, the cooling plate 7 is enabled to reduce contact with the heat as much as possible, and therefore current is generated by utilizing temperature difference between the heated plate 6 and the cooling plate 7, and the exhaust fan blade 5 is driven to rotate.

Further, the width of the heated plate 6 and the cooling plate 7 is smaller than the width of the ventilation duct 2. So that the oil smoke discharged from the exhaust fan blade 5 can be discharged through the ventilation pipe 2.

Further, the heated plate 6, the cooling plate 7 and the electromagnet 14 are electrically connected. According to the thermoelectric effect, when the electron hole in the heated object moves from a high temperature region to a low temperature region along with the temperature gradient, the accumulation of current or charge is generated; when the difference between the temperatures of the heated plate 6 and the cooling plate 7 changes, the current makes the electromagnet 14 generate magnetism, so that the electromagnet 14 can attract the conductive block 9 to be communicated with the conductive block, and after the conductive block 9 is communicated with the electromagnet 14, the current generated between the heated plate 6 and the cooling plate 7 is directly communicated with the exhaust fan blade 5, so that the exhaust fan blade 5 is driven to rotate, and the loss of electric energy is reduced.

In the invention, when a user needs to use the range hood body 1, the conductive block 9 is communicated with the electrode 18 under the thrust of the spring 12, and at the moment, the external power supply drives the exhaust fan blade 5 to rotate through the motor, so that the range hood body adsorbs oil smoke in a kitchen; when the exhaust fan blade 5 rotates, oil smoke in a kitchen is exhausted through the ventilation pipe 2, heat brought by the oil smoke passes through the heated plate 6, the heated plate 6 absorbs part of the heat, and air blown out by the exhaust fan blade 5 is guided to two sides of the ventilation pipe 2 through the guide plate 15, so that the cooling plate 7 is reduced in contact with the heat as much as possible, and current is generated by utilizing the temperature difference between the heated plate 6 and the cooling plate 7, so that the exhaust fan blade 5 is driven to rotate; according to the thermoelectric effect, when the electron hole in the heated object moves from a high temperature region to a low temperature region along with the temperature gradient, the accumulation of current or charge is generated; when the difference between the temperatures of the heated plate 6 and the cooling plate 7 changes, the current makes the electromagnet 14 generate magnetism, so that the electromagnet 14 can attract the conductive block 9 to be communicated with the conductive block, and after the conductive block 9 is communicated with the electromagnet 14, the current generated between the heated plate 6 and the cooling plate 7 is directly communicated with the exhaust fan blade 5, so that the exhaust fan blade 5 is driven to rotate, and the loss of electric energy is reduced.

Example two:

referring to fig. 5, the difference from the first embodiment is that: the upper surface of the exhaust fan blade 5 close to the middle position thereof is fixedly connected with a rotating shaft 16, the top of the rotating shaft 16 penetrates through the upper surface of the retainer 4 and is fixedly connected with a plurality of scrapers 17, and the scrapers 17 are abutted against the lower surface of the heated plate 6. After the exhaust fan blade 5 rotates, the rotating shaft 16 fixedly connected with the exhaust fan blade is driven to rotate, and the scraper 17 fixedly connected with the top end of the rotating shaft 16 abuts against the heated plate 6, so that the scraper 17 can scrape oil smoke on the lower surface of the heated plate 6, and the oil smoke is prevented from adhering to the heated plate 6, and the heat conduction performance of the heated plate 6 is prevented from being reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides an energy-saving range hood based on thermoelectric effect, includes lampblack absorber body (1) and ventilation pipe (2), its characterized in that, the top of lampblack absorber body (1) with ventilation pipe (2) fixed connection, and ventilation pipe (2) are linked together with the inside of lampblack absorber body (1), the internal surface symmetry fixedly connected with two supporting shoes (3) of ventilation pipe (2), two symmetry set up fixedly connected with holder (4) between supporting shoe (3), the internal surface rotation of holder (4) is connected with exhaust fan leaf (5), the internal surface fixedly connected with that ventilation pipe (2) are located exhaust fan leaf (5) top receives hot plate (6), the internal surface fixedly connected with that ventilation pipe (2) are close to and receive hot plate (6) top receives hot plate (7), the internal surface fixedly connected with control box (8) that ventilation pipe (2) are close to cooling plate (7), the utility model discloses a control box, including control box (8), sliding connection has conducting block (9), the upper surface of conducting block (9) runs through and has seted up rectangular channel (10), internal surface fixedly connected with fixed block (13) that control box (8) are close to rectangular channel (10), fixedly connected with guide arm (11) between the two surfaces of rectangular channel (10), guide arm (11) run through fixed block (13) and set up, the one end fixedly connected with electrode (18) of control box (8), the other end fixedly connected with electro-magnet (14) of electrode (18) are kept away from in control box (8), the surface cover of guide arm (11) is equipped with spring (12), the one end of spring (12) offsets with the internal surface of rectangular channel (10), the other end of spring (12) offsets with fixed block (13) that are close to electrode (18) one side.

2. The energy-saving range hood based on thermoelectric effect as claimed in claim 1, wherein the exhaust fan blade (5) and the electrode (18) are electrically connected to an external power source.

3. The energy-saving range hood based on thermoelectric effect as claimed in claim 1, wherein two flow deflectors (15) are fixedly connected to two ends of the heated plate (6) in an inclined manner.

4. The energy-saving range hood based on thermoelectric effect as claimed in claim 1, wherein the widths of the heated plate (6) and the cooling plate (7) are smaller than the width of the ventilation pipe (2).

5. The energy-saving range hood based on the thermoelectric effect as claimed in claim 1, wherein the heated plate (6), the cooling plate (7) and the electromagnet (14) are electrically connected.

6. The energy-saving range hood based on thermoelectric effect as claimed in claim 1, wherein the upper surface of the exhaust fan blade (5) near the middle position thereof is fixedly connected with a rotating shaft (16), the top of the rotating shaft (16) penetrates through the upper surface of the holder (4) and is fixedly connected with a plurality of scrapers (17), and the scrapers (17) are abutted against the lower surface of the heated plate (6).