CN110953642A

CN110953642A - Oil heater

Info

Publication number: CN110953642A
Application number: CN201911424675.8A
Authority: CN
Inventors: 唐爱红; 廖泓斌; 张毅; 孔艳; 白相星; 陈影炙; 衷卫健
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-04-03

Abstract

The invention provides an oil heater, comprising: the heater sheet comprises an upper oil pocket and a lower oil pocket which are arranged on the heater sheet; the oil-way passage is communicated with the oil discharging bag, one end of the oil-way passage close to the oil charging bag is a closed end, and a space is reserved between the closed end and the oil charging bag. The heating element is arranged in the lower oil pocket, the oil path channel is separated from the upper oil pocket in the scheme that the heat conduction oil is heated and gradually boils, the phenomenon that the temperature of the upper oil pocket is obviously higher than that of the lower oil pocket in the prior art is eliminated, the heat transfer efficiency of the upper oil pocket is weakened, the part with higher temperature is relatively reduced, the integral temperature rise of the heater piece is more uniform, and the temperature rise speed of the edge is slowed down. Thereby under the prerequisite of playing the same heating effect, this scheme modified oil heater edge temperature rise can reduce.

Description

Oil heater

Technical Field

The invention relates to the technical field of household appliances, in particular to an oil heater.

Background

Oil-filled warmer is also called as electric oil-filled warmer. The portable air conditioner has the advantages of being convenient to carry and use, is widely used in places such as families and hotels, is particularly more commonly used in places with damp and cool feeling and no warm air in winter in south, and is very wide in use places.

The electric oil heater product in the market comprises a heater sheet and oil-way channels distributed on the heater sheet. The oil passage is communicated with the upper oil pocket and the lower oil pocket. The heating body heats the heat conducting oil to transfer heat to the heater sheets through the heat conducting oil, and the temperature is transferred to the surrounding environment through a plurality of heater sheets.

However, because the edge of the heater piece can be heated along with the electric heater, a user can be scalded if touching the edge when using the electric heater. Therefore, the over-high temperature rise of the heater edge becomes an industrial problem. In order to solve the problem of overhigh temperature rise of the edges of the heater bodies, most products in the market control the problem of overhigh temperature of the edges of the heater bodies through a high-temperature protection mode of a temperature limiter.

The temperature limiter is usually arranged in the lower oil pocket, the temperature limiter sets a limiting temperature in advance, and when the temperature of the lower oil pocket reaches the set limiting temperature, the heating body is controlled to pause heating the heat-conducting oil. However, after the temperature limiter stops, the waste heat of the heating body can still heat the heat-conducting oil, so that the actual action of the temperature limiter is delayed. Therefore, in order to adapt to the delay function of the temperature limiter, the limit temperature is usually set to be lower, so that the heating body stops heating in advance, the problem of overhigh temperature rise of the edge of the heater body can be relieved to a certain extent, the temperature of heat conducting oil is insufficient, and the heat dissipation and heating effects of the heater fins are greatly reduced.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the heating effect of the electric oil heater is influenced while the edge temperature rise is reduced in the prior art, so that the oil heater is provided.

An oil-filled warmer, comprising:

the heater sheet comprises an upper oil pocket and a lower oil pocket which are arranged on the heater sheet;

the oil-way passage is communicated with the lower oil pocket, one end, close to the upper oil pocket, of the oil-way passage is a closed end, and a space is reserved between the closed end and the upper oil pocket.

The distribution range of the closed end on the heater sheet is gradually reduced along the direction close to the upper oil pocket.

The closed end is U-shaped.

The oil passage is annular and forms a circulation loop, and the oil discharge pocket is connected in series on a circulation path of the circulation loop.

The oil circuit channel has three.

And a gap is formed between every two adjacent oil channels.

Further comprising:

the reinforcing rib is arranged on the heater chip and extends along the direction from the oil outlet to the upper oil outlet.

The oil-way channel is located between the two reinforcing ribs.

Further comprising:

and the bending part is connected with the edge of the heater sheet and forms a bending angle with the heater sheet, and the size of the bending angle is [0 degrees, 180 degrees ].

The heater sheet comprises:

the oil circuit comprises a first split body and a second split body, wherein the first split body and the second split body are oppositely buckled to form the heater sheet, a plurality of grooves are formed in the first split body and the second split body, and the grooves form the oil circuit channel by buckling the first split body and the second split body.

The technical scheme of the invention has the following advantages:

1. the invention provides an oil heater, comprising: the heater sheet comprises an upper oil pocket and a lower oil pocket which are arranged on the heater sheet; the oil-way passage is communicated with the lower oil pocket, one end, close to the upper oil pocket, of the oil-way passage is a closed end, and a space is reserved between the closed end and the upper oil pocket.

The heating element is in lower oil pocket, and the conduction oil is heated and boils gradually, and among the prior art, go up oil pocket and lower oil pocket intercommunication, the boiling takes place for the hot bubble on the heat conduction oil liquid level of last oil pocket, leads to going up oil pocket temperature and obviously being higher than lower oil pocket temperature, makes the efficiency that goes up the oil pocket and transmit heat to the surrounding be greater than lower oil pocket efficiency of transmitting heat to the surrounding. Resulting in a rapid temperature rise at the edges. In the scheme, the oil path channel is isolated from the upper oil bag, so that the phenomenon that the temperature of the upper oil bag is obviously higher than that of the lower oil bag in the prior art is eliminated, the heat transfer efficiency of the upper oil bag is weakened, the part with higher temperature is relatively reduced, the integral temperature rise of the heater sheet is more uniform, and the temperature rise speed of the edge is slowed down. Thereby under the prerequisite of playing the same heating effect, this scheme modified oil heater edge temperature rise can reduce.

2. According to the oil heater provided by the invention, the distribution range of the closed end on the heater sheet is gradually reduced along the direction close to the upper oil pocket.

The boiling phenomenon takes place for the conduction oil in the closed end in this scheme, and more hot bubble distributes in the blind end, and the distribution range of blind end reduces gradually near the direction of last oil pocket for the increase of distance to the edge of blind end both sides makes the higher blind end position of temperature relative to increase to the distance of edge, thereby reduces the heat transfer efficiency that the blind end transmitted heat to the edge.

3. The closed end of the oil heater provided by the invention is U-shaped.

4. The oil heater provided by the invention has the advantages that the oil path channel is annular and forms a circulation loop, and the oil outlet bag is connected in series on a circulation path of the circulation loop.

The circulation loop can improve the heat transfer performance of the heat transfer oil, so that the heat transfer oil can be better circulated, heat can be transferred more uniformly, and the temperature difference between the lower oil pocket and the closed end is reduced, thereby preventing the position with overhigh temperature from occurring, and preventing the edge from generating the condition of higher temperature.

5. The oil heater provided by the invention is provided with three oil channels.

6. According to the oil heater provided by the invention, a gap is formed between every two adjacent oil-way channels.

The uniformity of the heat dissipation of the radiator is improved.

7. The invention provides an oil heater, further comprising:

The mechanical strength of the heater sheet is improved.

8. The oil heater provided by the invention has two reinforcing ribs, the two reinforcing ribs are arranged in parallel, and the oil channel is positioned between the two reinforcing ribs.

9. The invention provides an oil heater, further comprising:

The bending part increases the distance from the edge of the heater sheet to the oil path channel, and reduces the heat transfer efficiency of the oil path channel to the edge of the heater sheet, so that the temperature rise of the edge can be reduced when the same heating effect is achieved.

10. The invention provides an oil heater, which comprises: the oil circuit comprises a first split body and a second split body, wherein the first split body and the second split body are oppositely buckled to form the heater sheet, a plurality of grooves are formed in the first split body and the second split body, and the grooves form the oil circuit channel by buckling the first split body and the second split body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a front view of a sheet structure of the present invention;

FIG. 2 is an exploded view of the structure of a sheet of the present invention;

FIG. 3 is a top view of the oil-filled warmer structure of the present invention;

FIG. 4 is a comparison line chart of the edge temperature rise experiment of the oil heater of the present invention compared with the prior art.

Description of reference numerals:

1. a tinplate; 11. a first split body; 12. a second body; 13. a bending section; 2. an oil road channel; 21. a closed end; 3. feeding oil; 4. discharging oil; 5. and (5) reinforcing ribs.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The invention provides an oil heater, as shown in fig. 1 and 3, comprising: the electric heating sheet comprises a heating sheet 1 and a heating sheet body, wherein the heating sheet 1 comprises an upper oil pocket 3 and a lower oil pocket 4 which are arranged on the heating sheet 1; the oil-way passage 2 is communicated with the lower oil pocket 4, one end, close to the upper oil pocket 3, of the oil-way passage 2 is a closed end 21, and a space is reserved between the closed end 21 and the upper oil pocket 3. The heating element is in lower oil pocket 4, and the conduction oil is heated and boils gradually, and in the prior art, last oil pocket 3 and lower oil pocket 4 intercommunication, the boiling takes place for the hot bubble on the heat conduction oil liquid level of last oil pocket 3, leads to last oil pocket 3 temperature obviously to be higher than lower oil pocket 4 temperature, makes the efficiency of going up oil pocket 3 to the heat transfer of periphery be greater than lower oil pocket 4 efficiency of heat transfer to the periphery. Resulting in a rapid temperature rise at the edges. In the scheme, the oil path channel 2 is isolated from the upper oil bag 3, so that the phenomenon that the temperature of the upper oil bag 3 is obviously higher than that of the lower oil bag 4 in the prior art is eliminated, the heat transfer efficiency of the upper oil bag 3 is weakened, the part with higher temperature is relatively reduced, the integral temperature rise of the heater sheet 1 is more uniform, and the temperature rise speed of the edge is slowed down. Thereby under the prerequisite of playing the same heating effect, this scheme modified oil heater edge temperature rise can reduce.

The distribution shape of the oil passage 2 is not particularly limited, and in this embodiment, as shown in fig. 1, the distribution range of the closed end 21 on the oil filling sheet 1 gradually decreases in the direction approaching the upper oil pocket 3. According to the scheme, the heat conduction oil in the closed end 21 is boiled, more heat bubbles are distributed in the closed end 21, the distribution range of the closed end 21 is gradually reduced along the direction close to the upper oil pocket 3, the distance from the two sides of the closed end 21 to the edge is increased, the distance from the part of the closed end 21 with relatively high temperature to the edge is increased, and the heat transfer efficiency of the closed end 21 for transferring heat to the edge is reduced. As an alternative embodiment, the range of the oil passage 2 is rectangular, and the width of the oil passage along the direction from the lower oil pocket 4 to the upper oil pocket 3 is constant.

The shape of the closed end 21 is not particularly limited, and in the present embodiment, the closed end 21 is U-shaped as shown in fig. 1. As an alternative embodiment, the closed end 21 is in the shape of a circular arc, a dogleg, a triangle or a trapezoid.

The shape of the oil passage 2 itself is not particularly limited, and in this embodiment, as shown in fig. 1 and 2, the oil passage 2 is annular and forms a circulation loop, and the oil discharge pockets 4 are connected in series on a circulation path of the circulation loop. The circulation loop can improve the heat transfer performance of the heat transfer oil, so that the heat transfer oil can be better circulated, heat can be transferred more uniformly, and the temperature difference between the lower oil pocket 4 and the closed end 21 is reduced, so that the position with overhigh temperature is prevented, and the condition that the edge has higher temperature is prevented. In this embodiment, the two ends of the oil passage 2 corresponding to the flow direction of the oil passage therein are both communicated with the lower oil pocket 4, thereby forming a circulating oil passage. As an alternative embodiment, the oil passage 2 is connected to the lower oil pocket 4 at only one end corresponding to the path of the heat transfer oil flowing therein.

The number of the oil passages 2 is not particularly limited, and in this embodiment, as shown in fig. 1, the oil passages 2 have three. As alternative embodiments, the number of oil passages 2 is one, two, four or more than four.

As shown in fig. 1, a gap is formed between adjacent oil passages 2 to improve the uniformity of heat dissipation of the radiator fins 1.

In this embodiment, as shown in fig. 1 and fig. 2, the method further includes: and the reinforcing rib 5 is arranged on the heater sheet 1, and the reinforcing rib 5 extends along the direction from the lower oil pocket 4 to the upper oil pocket 3. The mechanical strength of the sheet 1 is improved. The number of the reinforcing ribs 5 is two, the two reinforcing ribs 5 are arranged in parallel, and the oil channel 2 is located between the two reinforcing ribs 5. As an alternative embodiment the reinforcement ribs 5 have three, four or more than four.

The shape of the heater sheet 1 is not particularly limited, and in this embodiment, as shown in fig. 3, the method further includes: and the bending part 13 is connected with the edge of the heater sheet 1 and forms a bending angle with the heater sheet 1, and the size of the bending angle is [0 degree, 180 degrees ]. The bending part 13 increases the distance from the edge of the heater sheet 1 to the oil path channel 2, and reduces the heat transfer efficiency of the oil path channel 2 to the edge of the heater sheet 1, so that the temperature rise of the edge can be reduced when the same heating effect is achieved. As an alternative, the elimination of the bent edges still solves the problem of excessive temperature rise at the edges.

As shown in fig. 1 and 2, the sheet 1 includes: the oil-gas separation device comprises a first split body 11 and a second split body 12, wherein the first split body and the second split body 12 are oppositely buckled to form the heater sheet 1, a plurality of grooves are formed in the first split body 11 and the second split body 12, and the grooves form the oil channel 2 by buckling the first split body 11 and the second split body 12.

In this embodiment, two oil heater apparatuses, in the prior art, when the upper oil pocket 3 and the lower oil pocket 4 are communicated with each other, are denoted as a and B, respectively, when the upper oil pocket 3 and the oil passage 2 are disconnected in this embodiment. For A, B, the two heaters are heated to the same temperature in the same environment, and then the temperature changes of the edges of A, B two oil heaters are measured in the same time, so as to generate an edge temperature change line graph shown in fig. 4.

As shown in fig. 4, the temperature rise condition of the edge of the oil heater in the prior art corresponds to a folding line a, and the temperature rise condition of the edge of the oil heater in the embodiment corresponds to a folding line B. Under the same heating effect, the temperature rise of the edge of the oil heater in the embodiment is obviously lower than that of the edge of the oil heater in the prior art.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. An oil spit of fland room heater which characterized in that includes:

the electric heating device comprises a heating sheet (1) and a heating device, wherein the heating sheet (1) comprises an upper oil pocket (3) and a lower oil pocket (4) which are arranged on the heating sheet (1);

the oil passage (2) is communicated with the lower oil pocket (4), one end, close to the upper oil pocket (3), of the oil passage (2) is a closed end (21), and a space is reserved between the closed end (21) and the upper oil pocket (3).

2. The oil heater as claimed in claim 1, wherein the distribution range of the closed end (21) on the radiator fin (1) is gradually reduced along the direction close to the upper oil pocket (3).

3. Oil-filled warmer according to claim 2, characterized in that the closed end (21) is U-shaped.

4. The oil heater as claimed in any one of claims 1-3, wherein the oil passage (2) is annular and forms a circulation loop, and the oil outlet pocket (4) is connected in series on the circulation path of the circulation loop.

5. The oil-filled warmer as claimed in claim 1, wherein the oil-way passage (2) has three.

6. The oil heater as claimed in claim 1 or 5, wherein there is a gap between adjacent oil channels (2).

7. The oil-filled warmer of claim 1, further comprising:

the reinforcing rib (5) is arranged on the heater sheet (1), and the reinforcing rib (5) extends along the direction from the lower oil pocket (4) to the upper oil pocket (3).

8. The oil heater as claimed in claim 7, wherein there are two ribs (5), two ribs (5) are disposed in parallel, and the oil passage (2) is located between the two ribs (5).

9. The oil-filled warmer of any one of claims 1-3, 5, and 7-8, further comprising:

the bending part (13) is connected with the edge of the heater sheet (1) and forms a bending angle with the heater sheet (1), and the size of the bending angle is [0 degrees, 180 degrees ].

10. The oil-filled warmer according to claim 1, characterized in that the sheet (1) comprises:

the oil-filled radiator comprises a first split body (11) and a second split body (12), wherein the first split body (11) and the second split body (12) are oppositely buckled to form the radiator sheet (1), a plurality of grooves are formed in the first split body (11) and the second split body (12), and the grooves form the oil channel (2) by buckling the first split body (11) and the second split body (12).