CN212409013U

CN212409013U - Heating element and sterilizing machine

Info

Publication number: CN212409013U
Application number: CN202021238916.8U
Authority: CN
Inventors: 王志昂; 刘小平; 李忠堂; 林玉绵
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-01-26
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a heating assembly and a sterilizing machine, which comprises a heating air duct for air to flow from bottom to top, wherein a heating body is arranged at the bottom of the heating air duct, so that a hot air area is formed right above the heating body, and a cold air area is formed obliquely above the heating body; the heating air duct is formed with flaring and throat that set up in turn, and flaring and throat make the air mixture in hot-blast district and cold-blast district through atmospheric pressure change. Heating element, the air is heated evenly, does not have the dead angle, guarantees the virus killing effect.

Description

Heating element and sterilizing machine

Technical Field

The utility model belongs to the heating field especially relates to a heating element and sterilizing machine.

Background

The heating assembly of the existing disinfection machine in the market is of a frame structure, a hot air flow channel has dead corners, viruses can be hidden, and air of the viruses in the air channel is not mixed, so that the temperature distribution is uneven. The air duct has low heat insulation performance, high surface temperature and weak virus air disinfection capability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heating element and sterilizing machine to guarantee that air temperature is even.

In order to achieve the above purpose, the specific technical scheme of the heating assembly and the sterilizing machine of the utility model is as follows:

a heating assembly comprises a heating air channel for air to flow from bottom to top, wherein a heating body is arranged at the bottom of the heating air channel, so that a hot air area is formed right above the heating body, and a cold air area is formed obliquely above the heating body; the heating air duct is formed with flaring and throat that set up in turn, and flaring and throat make the air mixture in hot-blast district and cold-blast district through atmospheric pressure change.

Further, the heating body is arranged at the center of the bottom of the heating air duct.

Furthermore, a guide plate is formed on the side surface of the heating air duct, and the guide plate is provided with an expanding section protruding towards one side far away from the heating element and a contracting section sinking towards one side close to the heating element.

Furthermore, the guide plates are arranged on two sides of the heating air duct in a mirror image mode, the flaring is located between flaring sections of the two guide plates, and the necking is located between necking sections of the two guide plates.

Furthermore, an insulation board is arranged between the two guide plates in a spanning mode, and the heating air channel is defined by the insulation board and the guide plates which are arranged oppositely.

Furthermore, the guide plate forms a boss protruding to one side far away from the heating body, and the boss is fixedly connected with the shell, so that a heat insulation interlayer is formed between the rest part of the guide plate and the inner wall of the shell.

Furthermore, the bosses are at least two and horizontally arranged beside the heating body.

Furthermore, the lower end of the guide plate forms a flange fixed with the shell.

Furthermore, a flow guide section gradually extending to the air outlet is formed at the upper end of the flow guide plate.

A sterilizing machine comprises a shell, wherein the heating assembly is arranged in the shell.

The utility model discloses a heating element and sterilizing machine has following advantage:

1. the guide plate structure is added in the heating air channel, so that cold and hot air with viruses is uniformly mixed, the air heating channel is increased, the heating time is prolonged, and the virus inactivation rate is higher.

2. Through setting up guide plate and heated board, reduced sterilizer casing surface temperature, reduce energy loss, the high-efficient electrothermal energy that utilizes.

Drawings

FIG. 1 is a cross-sectional view of the disinfection machine of the present invention;

FIG. 2 is an exploded view of the sterilizer of the present invention;

fig. 3 is a schematic view of the structure of the deflector of the present invention.

The notation in the figure is:

1. a housing; 2. a plasma purification assembly; 3. a HEPA screen assembly; 4. a fan assembly; 5. a heating air duct; 6. a heating element; 7. a baffle; 71. a flared section; 72. a necking section; 73. a flow guide section; 74. a boss; 75. flanging; 8. a thermal insulation board; 9. a heat insulation interlayer.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the heating assembly and the disinfection machine of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the disinfection machine of the present invention comprises a housing 1. The inner cavity of the shell 1 is sequentially provided with a plasma purification component 2, a heating component, a HEPA filter screen component 3 and a fan component 4 from bottom to top. The fan assembly 4 operates, and negative pressure is generated at the upper end of the inner cavity of the shell 1; air gets into from the air inlet of casing 1 bottom, filters particulate matter and bacterium through plasma purification subassembly 2, reentrant heating element high temperature killing virus, gets into HEPA filter screen subassembly 3 at last and further filters air-purifying, outside the gas vent discharge casing 1 at casing 1 top is followed to fan subassembly 4's effect at last, realizes the disinfection of air.

The heating assembly comprises a heating air duct 5 arranged in the inner cavity of the housing 1. The heating air duct 5 is vertically arranged, and the heating air duct 5 is used for air to flow from bottom to top. Heating duct 5 bottom is provided with heat-generating body 6 to heating duct 5 is formed with the hot-blast district that is located directly over heat-generating body 6, and is located the cold wind district of the oblique top of heat-generating body 6, and the air in cold wind district reduces along with keeping away from hot-blast district temperature gradually. The heating air duct 5 is formed with flaring and throat that set up in turn on 6 upsides of heat-generating body, and the flaring passes through the air pressure variation with the throat and makes the air mixture in hot-blast district and cold-blast district to make the temperature misce bene of heating air duct 5, guarantee the effect of disinfecting of high temperature to the air.

Generally, the heating body 6 is disposed at the center of the bottom of the heating duct 5 and fixed in the case 1 by a bracket. According to the specification of the sterilizing machine, the heating body 6 can be formed by arraying different numbers of resistance blocks at the center of the air channel.

As shown in fig. 3, a baffle 7 is formed on the side surface of the heating air duct 5 to form a flare and a throat, and the baffle 7 is formed with a flare section 71 protruding to the side away from the heating element 6 and a throat section 72 recessed to the side close to the heating element 6. The guide plates 7 are arranged on two sides of the heating air duct 5 in a mirror image mode, the flaring is located between flaring sections 71 of the two guide plates 7, and the necking is located between necking sections 72 of the two guide plates 7.

An insulation board 8 is arranged between the two guide plates 7 in a spanning mode, and the heating air duct 5 is formed by the insulation board 8 and the guide plates 7 which are arranged oppositely. The heat preservation is realized through the heat preservation plate 8, the temperature emitted by the heating body 6 is prevented from being emitted from the front side and the rear side of the heating air duct 5, and the guide plates 7 on the left side and the right side conduct flow to ensure the air to be fully mixed.

In order to prevent heat from being emitted from the side of the guide plate 7, the guide plate 7 is provided with a boss 74 protruding to the side far away from the heating body 6, the boss 74 is fixedly contacted with the shell 1, a temperature insulation interlayer 9 is formed between the rest part of the guide plate 7 and the inner wall of the shell 1, the contact area is small, the heat loss is small, the temperature of the outer surface of the sterilizer is reduced, and the electric heat energy is efficiently utilized.

At least two bosses 74 are arranged for stable installation and horizontally arranged beside the heating body 6. The lower end of the deflector 7 forms a flange 75 fixed with the shell 1.

In order to connect with the HEPA filter screen assembly 3 at the downstream of the heating assembly, the upper end of the flow guide plate 7 forms a flow guide section 73 gradually extending to the air outlet so as to prevent air leakage.

The heating air duct 5 of this embodiment is provided with one or even a plurality of sets of flares and throats, the caliber of the throat is suddenly reduced, the air pressure is suddenly increased, the cold air deviates to the hot air at the central position and is mixed with the hot air flow at the central position, the virus air flows to the flaring section 71 again, the caliber of the flaring section 71 is suddenly increased, the air pressure is suddenly reduced, the hot air at the central position diffuses outwards, the cold air and the hot air are mixed again, and the temperature in the channel is uniformly mixed. Meanwhile, as the airflow passes through the flaring and the necking, the flow is increased, the heating time is prolonged, and the sterilizing capability is obviously enhanced.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. A heating assembly comprises a heating air duct (5) for air to flow from bottom to top, and is characterized in that a heating body (6) is arranged at the bottom of the heating air duct (5), so that a hot air area is formed right above the heating body (6), and a cold air area is formed obliquely above the heating body (6); the heating air duct (5) is provided with alternately arranged expanding openings and reducing openings, and the expanding openings and the reducing openings enable air in the hot air area and air in the cold air area to be mixed through air pressure change.

2. The heating assembly according to claim 1, characterized in that the heat generating body (6) is arranged at the center of the bottom of the heating air duct (5).

3. The heating unit according to claim 1, wherein a deflector (7) is formed on the side of the heating air duct (5), and the deflector (7) is formed with a flared section (71) protruding toward the side away from the heating body (6) and a constricted section (72) recessed toward the side close to the heating body (6).

4. A heating assembly according to claim 3, characterized in that the baffles (7) are arranged mirror-like on both sides of the heating air duct (5), the flare being located between the flared sections (71) of the two baffles (7) and the constriction being located between the constricted sections (72) of the two baffles (7).

5. The heating assembly according to claim 4, characterized in that an insulation board (8) is spanned between the two flow deflectors (7), and the heating air duct (5) is enclosed by the insulation board (8) and the flow deflectors (7) which are respectively arranged oppositely.

6. A heating element according to claim 3, characterized in that the deflector (7) forms a projection (74) projecting towards the side remote from the heating element (6), the projection (74) being fixedly connected to the housing (1) so that a temperature insulating interlayer (9) is formed between the rest of the deflector (7) and the inner wall of the housing (1).

7. The heating assembly according to claim 6, wherein at least two bosses (74) are arranged and horizontally arranged beside the heating body (6).

8. A heating element according to claim 6, characterized in that the lower end of the deflector (7) forms a flange (75) which is fixed to the housing (1).

9. A heating element according to claim 3, characterized in that the upper end of the deflector (7) forms a deflector section (73) which extends gradually to the outlet opening.

10. A disinfection machine comprising a housing (1), characterized in that a heating assembly according to any one of claims 1-9 is arranged in the housing (1).