Convection type electric heater

Abstract

The utility model belongs to the technical field of electric heaters, and particularly relates to a convection type electric heater. Comprising a shell, a fan chamber and a heating chamber which are formed through a partition plate are formed in the shell, a fan for blowing air into the heating chamber is arranged in the fan chamber, a heating piece is arranged in the heating chamber, an air blowing channel located below the heating piece is arranged in the heating chamber, one end of the air blowing channel is communicated with an air outlet of the fan, the other end of the air blowing channel is closed, and an upward air outlet is formed in the air blowing channel. And the air outlet is gradually reduced from one end close to the fan to the other end. A plurality of detachable baffle plates are arranged above the heating part at intervals, the baffle plates are arranged at intervals, a detachable protective cover is arranged above the shell, and the protective cover comprises an air outlet plate opposite to the heating chamber and a dustproof plate opposite to the fan chamber. The air blowing channel can ensure that heated air can be uniformly and powerfully blown out, so that the heating effect and the comfort degree are improved; in addition, through the action of the baffle plates, the air heating effect and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric heater technical field, especially, relate to a convection electric heater. BACKGROUND

[0002] The structure of the convection electric heater, generally through setting the air inlet and the air outlet, and after electrifying, the air around the electric heating element is heated, and flows out from the air outlet, while the cold air around enters the air inlet to supplement, so as to circulate repeatedly, so that the indoor temperature can be improved. The convection electric heater utilizes the natural convection heat transfer of air, meets the ergonomic comfort demand, has no air current, and will not make the human body feel uncomfortable. However, in the case of low temperature, part of the hot air discharged by the convection electric heater can not effectively drive the overall indoor air temperature to rise, and the just-incoming cold air is not fully heated, which can lead to intermittent output of hot air, thereby affecting the temperature rising effect. In addition, in the process of realizing air flow heating circulation through the fan, the fan is heated by being arranged at one end. Since the air flow rate near the fan is large, the air outlet of the air outlet is not uniform, which affects the comfort of use. SUMMARY

[0003] In view of the above problems, the utility model provides a convection electric heater, which solves the technical problems of the prior art that the cold air is not fully heated, the temperature rising effect is affected, and the air outlet of the air outlet is not uniform.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a convection electric heater.

[0005] The utility model discloses a convection electric heater, which comprises a shell, a fan chamber and a heating chamber are formed in the shell by a partition plate, a fan for blowing air into the heating chamber is arranged in the fan chamber, a heating element is arranged in the heating chamber, a blast passage is arranged below the heating element in the heating chamber, one end of the blast passage is communicated with the air outlet of the fan, and the other end of the blast passage is closed, an air outlet is arranged on the blast passage and faces upward, and the air outlet gradually decreases from one end close to the fan to the other end.

[0006] A detachable baffle is arranged above the heating element, the baffle comprises a plurality of spaced apart baffles, a detachable protective cover is arranged above the shell, and the protective cover comprises an air outlet plate opposite to the heating chamber and a dustproof plate opposite to the fan chamber.

[0007] Further, the baffle comprises a vertical air inlet guide plate and an air outlet guide plate, and an inclined guide plate is arranged between the air inlet guide plate and the air outlet guide plate.

[0008] Further, the angle of inclination of the inclined guide plate is alpha, and 10 DEG ≤ alpha ≤ 30 DEG.

[0009] Further, the partition plate and the side plate opposite to the partition plate are both provided with a clamping groove for clamping the end of the air inlet guide plate.

[0010] Further, the upper end surface of the shell is provided with a back-shaped groove for clamping the protective cover.

[0011] Further, the upper portion of the partition plate is provided with a detachable limiting plate baffle, one end of the air outlet plate opposite to the limiting plate baffle is in abutment with the limiting plate baffle, and one end of the dustproof plate opposite to the limiting plate baffle is in abutment with the limiting plate baffle.

[0012] Further, the partition plate is provided with a limiting groove, the bottom end of the limiting plate baffle extends into the limiting groove, the top end of the limiting plate baffle is provided with limiting blocks on both sides, the bottom end of the limiting block is in abutment with the top end of the side plate of the protective cover, and the thickness of the limiting plate baffle is smaller than the thickness of the partition plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1、the utility model discloses a heating chamber, and the heating element in the heating chamber can generate heat, and the external cold air is sent into the heating chamber by the fan to heat and add the convection of air, thereby improving the heating efficiency. The air outlet of the air blowing channel is designed to gradually decrease from one end close to the fan to the other end, which helps to form uniform air distribution. As the air outlet gradually decreases, the air flow rate increases accordingly, thereby ensuring that the heated air can be blown out uniformly and powerfully, improving the heating effect and comfort.

[0015] 2、the utility model discloses a baffle, which can assist in reducing the air flow rate in the heating chamber and improve the heating effect of air, so that the air can more fully absorb the heat released by the heating element. Specifically, the baffle is made of a metal heat-conducting material, which can quickly absorb the heat of the heating element and further heat the air flowing through.

[0016] 3、the utility model discloses a baffle formed by the air inlet guide plate, the air outlet guide plate and the inclined guide plate, which can reduce the air flow rate and avoid too much resistance when the air flows out. The air flow can smoothly flow out, reducing the air flow dead angle.

[0017] 4、the structure of the utility model is convenient to disassemble and install, and is convenient for maintenance, cleaning and the like in the later period, thereby improving the flexibility of use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic view of a convection type electric heater according to the utility model;

[0019] Figure 2 Fig. 2 is a partial structural schematic view of the convection type electric heater according to the utility model.

[0020] Figure 3 For Figure 2 the local enlarged view of the middle region A;

[0021] Figure 4 For the internal structure diagram of the convection type electric heater of the utility model;

[0022] Figure 5 For Figure 4 the local enlarged view of the middle region B.

[0023] In the figure: 1, shell; 101, back type groove; 11, partition; 111, limiting groove; 12, fan chamber; 13, heating chamber; 14, heating piece; 15, air blowing channel; 151, air outlet; 16, baffle; 161, air inlet guide plate; 162, air outlet guide plate; 163, inclined surface guide plate; 17, protective cover; 171, air outlet plate; 172, dustproof plate; 18, clamping groove; 19, limiting baffle; 191, limiting block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] As Figures 1-5 indicated, the convection type electric heater.

[0026] The shell 1 is formed with the fan chamber 12 and the heating chamber 13 formed by the partition 11, the fan chamber 12 is provided with a fan for blowing air into the heating chamber 13, the heating chamber 13 is provided with a heating piece 14, the heating chamber 13 is provided with an air blowing channel 15 below the heating piece 14, one end of the air blowing channel 15 is communicated with the air outlet of the fan, and the other end is closed, the air blowing channel 15 is provided with an upward air outlet 151, and the air outlet 151 gradually decreases from one end close to the fan to the other end.

[0027] In specific use, the heating piece 14 in the heating chamber 13 generates heat, and the external cold air is sent into the heating chamber 13 by the fan to be heated, the convection of air is added, and thus the heating efficiency is improved.

[0028] The air outlet 151 of the air blowing channel 15 is designed to gradually decrease from one end close to the fan to the other end. This design helps to form a uniform air flow distribution. As the air outlet 151 gradually decreases, the air flow speed increases accordingly, ensuring that the heated air can be blown out uniformly and powerfully, improving the heating effect and comfort.

[0029] Specifically, the heating element 14 in this embodiment is an infrared heating tube.

[0030] In this embodiment, a detachable baffle plate 16 is arranged above the heating element 14. The baffle plate 16 is arranged in a spaced manner.

[0031] Through the action of the baffle plate 16, the speed of air flowing out of the heating chamber 13 is reduced, and the heating effect of the air is improved, so that the air can more fully absorb the heat released by the heating element.

[0032] In this embodiment, the baffle plate 16 is made of a metal heat-conducting material, which can quickly absorb the heat of the heating element 14, thereby further heating the air flowing through.

[0033] The baffle plate 16 includes a vertical air inlet guide plate 161 and an air outlet guide plate 162, and a slope guide plate 163 is arranged between the air inlet guide plate 161 and the air outlet guide plate 162.

[0034] The slope of the slope guide plate 163 is α, and α is 15°. The baffle plate 16 formed by the air inlet guide plate 161, the air outlet guide plate 162, and the slope guide plate 163 reduces the speed of air flowing out on the one hand, and avoids too much resistance when the air flows out on the other hand. This allows the air flow to smoothly flow out, reducing air flow dead angles.

[0035] In this embodiment, the partition plate 11 and the side plate opposite to the partition plate 11 are both provided with a clamping groove 18 for clamping the end of the air inlet guide plate 161. The clamping groove 18 facilitates the disassembly and installation of the baffle plate 16, and facilitates subsequent maintenance and cleaning.

[0036] In this embodiment, the upper portion of the shell 1 is provided with a detachable protective cover 17. The protective cover 17 includes an air outlet plate 171 opposite to the heating chamber 13 and a dustproof plate 172 opposite to the fan chamber 12.

[0037] The upper end surface of the shell 1 is provided with a back-shaped groove 101 for clamping the protective cover 17.

[0038] The protective cover 17 is convenient to disassemble and install, and is convenient for subsequent cleaning and maintenance. In addition, the structure of the protective cover 17 increases the space of the heating chamber 13, which helps to improve the performance and efficiency of the heating chamber 13.

[0039] Specifically, the side edges of the air outlet plate 171 and the dustproof plate 172 are provided with mounting holes, and the upper end surface of the protective cover 17 is provided with threaded holes for mounting the air outlet plate 171 and the dustproof plate 172.

[0040] In this embodiment, the upper portion of the partition plate 11 is provided with a detachable limiting plate baffle 19, one end of the air outlet plate 171 opposite to the limiting plate baffle 19 abuts against the limiting plate baffle 19, and one end of the dustproof plate 172 opposite to the limiting plate baffle 19 abuts against the limiting plate baffle 19.

[0041] The bottom end of the limiting plate baffle 19 extends into the limiting groove 111, the top end of the limiting plate baffle 19 is provided with limiting blocks 191 on both sides, the bottom end of the limiting block 191 abuts against the top end of the side plate of the protective cover 17, and the thickness of the limiting plate baffle 19 is less than the thickness of the partition plate 11.

[0042] The limiting plate baffle 19 cooperates with the partition plate 11 to realize the isolation between the fan chamber 12 and the heating chamber 13.

[0043] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or replace some of the technical features with equivalents, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A convection electric heater, comprising a housing (1), wherein a fan chamber (12) and a heating chamber (13) are formed within the housing (1) by means of a partition (11), wherein a fan for blowing air into the heating chamber (13) is provided in the fan chamber (12), and a heating element (14) is provided in the heating chamber (13), characterized in that: The heating chamber (13) is provided with a blast tunnel (15) below the heating element (14), one end of the blast tunnel (15) is communicated with the air outlet of the fan, and the other end is closed, the blast tunnel (15) is provided with an upward air outlet (151), the air outlet (151) gradually decreases from one end close to the fan to the other end; The upper side of the heating element (14) is provided with a detachable baffle (16), the baffle (16) is a plurality of spaced arrangements, the upper side of the shell (1) is provided with a detachable protective cover (17), the protective cover (17) includes an air outlet plate (171) opposite to the heating chamber (13) and a dustproof plate (172) opposite to the fan chamber (12).

2. The convection electric heater according to claim 1, characterized in that: The baffle (16) includes a vertical air inlet guide plate (161) and an air outlet guide plate (162), and a slope guide plate (163) is arranged between the air inlet guide plate (161) and the air outlet guide plate (162).

3. The convection electric heater according to claim 2, characterized in that: The slope of the slope guide plate (163) is α, and 10°≤α≤30°.

4. The convection electric heater according to claim 2, characterized in that: The baffle (11) and the side plate opposite to the baffle (11) are provided with a clamping groove (18) for clamping the end of the air inlet guide plate (161).

5. The convection electric heater according to claim 1, characterized in that: The upper end surface of the shell (1) is provided with a back-shaped groove (101) for clamping the protective cover (17).

6. The convection electric warmer of claim 1, wherein: The upper side of the baffle (11) is provided with a detachable limiting plate (19), the air outlet plate (171) and the limiting plate (19) are opposite to each other, and the dustproof plate (172) and the limiting plate (19) are opposite to each other.

7. The convection electric heater according to claim 6, characterized in that: The baffle (11) is provided with a limiting groove (111), the bottom end of the limiting plate (19) extends into the limiting groove (111), the top end of the limiting plate (19) is provided with a limiting block (191) on both sides, the bottom end of the limiting block (191) is in contact with the top end of the side plate of the protective cover (17), and the thickness of the limiting plate (19) is less than the thickness of the baffle (11).

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