CN111023236A

CN111023236A - Electric heater body structure and electric heater with same

Info

Publication number: CN111023236A
Application number: CN201911225735.3A
Authority: CN
Inventors: 唐爱红; 廖泓斌; 白相星; 陈影炙; 彭金华; 衷卫健; 张毅; 陈秋杉
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-04-17

Abstract

The invention provides a heater body structure and an electric heater with the same, comprising: the heater body piece comprises an upper oil pocket and a lower oil pocket which are respectively positioned at the upper end and the lower end of the heater body piece; the first oil path is arranged in the heater body and is communicated with the upper oil pocket and the lower oil pocket, the first oil path comprises a flow limiting part, and the inner diameter of the first oil path corresponding to the flow limiting part is smaller than the average inner diameter of the first oil path. The first oil path is communicated with the upper oil pocket and the lower oil pocket, and the flow limiting part has resistance to the bubbles when the bubbles move upwards through the first oil path. Therefore, the number and the rising speed of the hot air bubbles are reduced, and the temperature of the liquid level part of the heat transfer oil is reduced. Therefore, the heat transferred to the edge part of the heater sheet is reduced, and the effect of reducing the temperature of the edge of the heater sheet is achieved.

Description

Electric heater body structure and electric heater with same

Technical Field

The invention relates to the technical field, in particular to a heater body structure and an electric heater with the same.

Background

The electric heater has been commonly used in places such as families, hotels and the like because of the advantages of portability, convenient use and the like, is more commonly used in places with damp and cool property and without heating in winter in south, and has wide use places.

The oil heater is a common electric heater, and the oil heater comprises a plurality of heater piece structures, and the heater piece structures comprise an upper oil pocket, a lower oil pocket and oil ways distributed on the heater piece, and heat conducting oil is arranged in the upper oil pocket, the lower oil pocket and the oil ways. The heating body heats the heat-conducting oil after being electrified, so that the heat-conducting oil transfers heat to the heater body structure and then transfers the heat to the surrounding environment.

However, when the heat conduction oil transfers heat, the heat is firstly transferred on the heat radiator sheet, and finally the edge temperature of the heat radiator sheet is also increased. The user can easily touch the edge of the spit sheet when using the electric heating radiator.

The mode of solving the too high temperature of spit of fland body piece edge among the prior art is at spit of fland body piece edge extension hem, increases spit of fland body piece edge to the distance of oil circuit, makes spit of fland body piece edge temperature obtain reducing.

However, the addition of the folded edge increases additional processing procedures, which not only makes the process relatively complicated, but also increases the production cost.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the problem of overhigh temperature of the edges of the sheet of the heater in the prior art, so as to provide a sheet structure of the heater and an electric heater with the structure.

A light body structure comprising:

the heater body piece comprises an upper oil pocket and a lower oil pocket which are respectively positioned at the upper end and the lower end of the heater body piece;

the first oil path is arranged in the heater body and is communicated with the upper oil pocket and the lower oil pocket, the first oil path comprises a flow limiting part, and the inner diameter of the first oil path corresponding to the flow limiting part is smaller than the average inner diameter of the first oil path.

The flow restricting part is arranged close to the upper oil pocket.

Further comprising:

and one end of the second oil path is communicated with the lower oil pocket, and the other end of the second oil path is closed and extends towards the upper oil pocket.

Further comprising:

and a third oil passage communicating the first oil passage and the second oil passage.

The third oil path is horizontally arranged and is positioned in the middle of the heater body piece in the height direction.

The flow restricting portion is provided above the third oil passage.

The flow limiting portion is located in the middle between the third oil path and the upper oil bag.

There are two first oil passages, there is one second oil passage, and the second oil passage is located between the two first oil passages.

The heater body piece is provided with a reinforcing rib, and the reinforcing rib is parallel to the edge of the heater body piece.

The number of the reinforcing ribs is two, and the first oil way is distributed between the two reinforcing ribs.

An electric heater comprises the heater body structure of any scheme.

The technical scheme of the invention has the following advantages:

1. the invention provides a heater structure, comprising: the heater body piece comprises an upper oil pocket and a lower oil pocket which are respectively positioned at the upper end and the lower end of the heater body piece; the first oil path is arranged in the heater body and is communicated with the upper oil pocket and the lower oil pocket, the first oil path comprises a flow limiting part, and the inner diameter of the first oil path corresponding to the flow limiting part is smaller than the average inner diameter of the first oil path.

Since the thermal oil is not 100% full, the oil charge is typically of a fraction of air and a fraction of thermal oil. In the use process, the heat conduction oil is heated by the heating body to boil, and the hot bubbles are transferred from bottom to top, so that more oil bubbles are boiled at the part where the heat conduction oil is connected with the air, and the temperature of the liquid level part of the heat conduction oil is higher. In this scheme, oil pocket and lower oil pocket in the first oil circuit intercommunication, when the bubble through first oil circuit upward movement, the current-limiting portion has the resistance to the bubble. Therefore, the number and the rising speed of the hot air bubbles are reduced, and the temperature of the liquid level part of the heat transfer oil is reduced. Therefore, the heat transferred to the edge part of the heater sheet is reduced, and the effect of reducing the temperature of the edge of the heater sheet is achieved.

2. According to the seed heater body structure provided by the invention, the flow limiting part is arranged close to the upper oil pocket.

As the temperature is transferred upwards in the temperature rising process of the heater, the highest temperature is generated at the upper end of the heater body, and the current limiting part is arranged close to the upper end and can prevent more hot bubbles from rising so as to achieve the effect of better reducing the edge temperature of the heater body sheet.

3. The seed-heating body structure provided by the invention further comprises: and one end of the second oil path is communicated with the lower oil pocket, and the other end of the second oil path is closed and extends towards the upper oil pocket.

The second oil circuit has increased the distribution area of conduction oil in the internal piece of spit of fland, has improved the heating effect of spit of fland piece to the second oil circuit does not directly link to each other with last oil bag, consequently when increasing the internal piece degree of consistency that generates heat of spit of fland, plays the effect that reduces the oil bag temperature that oils.

4. The seed-heating body structure provided by the invention further comprises: and a third oil passage communicating the first oil passage and the second oil passage.

The third oil path communicates the first oil path with the second oil path, so that the heat conduction oil is more uniformly distributed in each oil path, and the radiator sheet can dissipate heat more uniformly.

5. In the lamp body structure provided by the invention, the third oil path is horizontally arranged and is positioned in the middle of the lamp body piece in the height direction.

The upper part of the temperature of the heat conduction oil is relatively high, so that the third oil way positioned in the middle part in the height direction is more convenient for the heat conduction oil to flow and exchange heat in each oil way, and the heat dissipation uniformity of the radiator pieces is improved.

6. In the seed heating body structure provided by the invention, the flow limiting part is arranged above the third oil way.

As the temperature is transferred upwards in the temperature rising process of the heater body, the highest temperature is generated at the upper end part of the heater body, and the flow limiting part is arranged above the third oil way, so that more hot bubbles can be prevented from rising, and the effect of better reducing the edge temperature of the heater body piece is achieved.

7. According to the seed heater body structure, the flow limiting part is located in the middle between the third oil path and the upper oil bag.

8. The invention provides a radiator body structure, which is characterized in that two first oil ways are provided, one second oil way is provided, and the second oil way is positioned between the two first oil ways.

The first oil paths are symmetrically arranged on the two sides, so that the uniformity of oil temperature transfer in the direction from the lower oil pocket to the upper oil pocket can be increased. Two first oil passages can keep the oil passages smooth even if one of the first oil passages is blocked and damaged. And part of the hot bubbles enter the second oil path and cannot rise continuously, so that the second oil path also helps to reduce the temperature rise of the upper oil pocket and reduce the quantity of the hot bubbles entering the upper oil pocket. Meanwhile, the closed end of the second oil way is positioned below the upstream way and between the two first oil ways, so that the uniformity of heat dissipation of the radiator pieces is further improved.

9. According to the seed heating body structure provided by the invention, the heating body piece is provided with the reinforcing ribs, and the reinforcing ribs are arranged in parallel to the edges of the heating body piece.

The reinforcing ribs can increase the mechanical strength of the radiator sheet.

10. According to the radiator body structure provided by the invention, the number of the reinforcing ribs is two, and the first oil way is distributed between the two reinforcing ribs.

Protect first oil circuit and prevent that the striking makes first oil circuit receive the damage.

11. The invention further provides an electric heater which comprises the heater body structure in any scheme.

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 schematic representation of a statin tablet structure of the invention;

FIG. 2 is a cross-sectional view of the heat mass sheet A-A of FIG. 1 showing the structure of the flow restrictor;

fig. 3 is a cross-sectional view of the first oil passage structure shown at the radiator sheet B-B in fig. 1.

Description of reference numerals:

1. a statin tablet; 11. feeding oil; 12. discharging oil; 2. a first oil passage; 21. a flow restriction portion; 3. a second oil passage; 4. a third oil passage; 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 present embodiment provides a light body structure, as shown in fig. 1, including: the electric heating device comprises a heating body piece 1, a heating body piece and a heating body piece, wherein the heating body piece 1 comprises an upper oil pocket 11 and a lower oil pocket 12 which are respectively positioned at the upper end and the lower end of the heating body piece 1; the first oil path 2 is arranged in the heater sheet 1, the first oil path 2 is communicated with the upper oil pocket 11 and the lower oil pocket 12, the first oil path 2 comprises a flow limiting part 21, and the inner diameter of the first oil path 2 corresponding to the flow limiting part 21 is smaller than the average inner diameter of the first oil path 2. Since the thermal oil is not 100% full, the upper oil pocket 11 is normally filled with a portion of air and a portion of thermal oil. In the use process, the heat conduction oil is heated by the heating body to boil, and the hot bubbles are transferred from bottom to top, so that more oil bubbles are boiled at the part where the heat conduction oil is connected with the air, and the temperature of the liquid level part of the heat conduction oil is higher. In the scheme, the first oil path 2 is communicated with the upper oil pocket 11 and the lower oil pocket 12, and when the air bubbles move upwards through the first oil path 2, the flow limiting part 21 has resistance to the air bubbles. Therefore, the number and the rising speed of the hot air bubbles are reduced, and the temperature of the liquid level part of the heat transfer oil is reduced. Therefore, the heat transferred to the edge part of the sheet 1 is reduced, and the effect of reducing the temperature of the edge of the sheet 1 is achieved.

The position of the flow restriction portion 21 is not particularly limited, and in the present embodiment, as shown in fig. 1, the flow restriction portion 21 is disposed near the upper oil pocket 11. As the temperature is transferred upwards in the temperature rising process of the heater body, the highest temperature is generated at the upper end part of the heater body, and the flow limiting part 21 is arranged close to the upper end and can prevent more hot bubbles from rising so as to achieve the effect of better reducing the edge temperature of the heater body sheet 1. As an alternative embodiment, the restrictor 21 is located at a middle portion in the height direction of the first oil passage 2, or the restrictor 21 is provided near the lower oil pocket 12.

The structure of the oil path through which the heat transfer oil flows is not particularly limited, and in this embodiment, as shown in fig. 1, the oil path further includes: one end of the second oil path 3 is communicated with the lower oil pocket 12, and the other end is closed and extends towards the upper oil pocket 11. The second oil circuit 3 increases the distribution area of the heat transfer oil in the heater body piece 1, improves the heating effect of the heater body piece 1, and the second oil circuit 3 is not directly connected with the upper oil pocket 11, so that the heating uniformity of the heater body piece 1 is increased, and the effect of reducing the temperature of the upper oil pocket 11 is achieved.

The structure of the oil path through which the heat transfer oil flows is not particularly limited, and in this embodiment, as shown in fig. 1, the oil path further includes: and a third oil passage 4 communicating the first oil passage 2 and the second oil passage 3. The third oil path 4 is used for communicating the first oil path 2 with the second oil path 3, so that the heat conduction oil is more uniformly distributed in each oil path, and the heater body sheet 1 can dissipate heat more uniformly.

The position of the third oil passage 4 is not particularly limited, and in the present embodiment, as shown in fig. 1, the third oil passage 4 is horizontally disposed, and the third oil passage 4 is located at the middle position in the height direction of the heater chip 1. Because the temperature of the heat conduction oil is relatively higher, the third oil path 4 in the middle of the height direction facilitates the heat conduction oil to flow and exchange heat in each oil path, so that the heat dissipation uniformity of the radiator sheet 1 is improved. As an alternative embodiment, the third oil passage 4 is provided near the upper oil pocket 11 or the lower oil pocket 12.

The positional relationship between the flow restriction portion 21 and the third oil passage 4 is not particularly limited, and in the present embodiment, as shown in fig. 1, the flow restriction portion 21 is disposed above the third oil passage 4. In the temperature rising process of the heater, the temperature is transferred upwards, so the highest temperature is generated at the upper end part of the heater body, and the flow limiting part 21 is arranged above the third oil path 4, so that more hot bubbles can be prevented from rising, and the effect of better reducing the edge temperature of the heater body sheet 1 is achieved. As an alternative embodiment, the restriction 21 is located below the third oil passage 4, or the restriction 21 is located on the third oil passage 4.

The position of the flow restriction portion 21 above the third oil passage 4 is not particularly limited, and in this embodiment, as shown in fig. 1, the flow restriction portion 21 is located at an intermediate position between the third oil passage 4 and the upper oil pocket 11. As an alternative embodiment, the restrictor 21 is located above the third oil passage 4 and is disposed near the third oil passage 4.

The number and distribution structure of the first oil passages 2 and the second oil passages 3 are not particularly limited, and in this embodiment, as shown in fig. 1, there are two first oil passages 2, there is one second oil passage 3, and the second oil passage 3 is located between the two first oil passages 2. The first oil paths 2 symmetrically arranged on two sides can increase the uniformity of oil temperature transmission from the oil discharge pocket 12 to the oil discharge pocket 11. Two first oil paths 2 can keep the oil paths smooth even if one of the first oil paths is blocked and damaged. Part of the hot air bubbles enter the second oil path 3 and cannot rise continuously, so that the second oil path 3 also helps to reduce the temperature rise of the upper oil pocket 11 and reduce the number of hot air bubbles entering the upper oil pocket 11. Meanwhile, the closed end of the second oil path 3 is positioned below the upstream path and between the two first oil paths 2, so that the heat dissipation uniformity of the radiator sheet 1 is further improved. As an alternative embodiment, there is one first oil passage 2 and one second oil passage 3. As another alternative embodiment, the second oil passage 3 has two or more.

The structure of the sheet 1 is not particularly limited, and in this embodiment, as shown in fig. 1, 2, and 3, a reinforcing rib 5 is provided on the sheet 1, and the reinforcing rib 5 is provided parallel to the edge of the sheet 1. The reinforcing ribs 5 can increase the mechanical strength of the radiator sheet 1.

The number of the reinforcing ribs 5 is not particularly limited, and in this embodiment, as shown in fig. 1, 2, and 3, two reinforcing ribs 5 are provided, and the first oil passage 2 is distributed between the two reinforcing ribs 5. Protecting the first oil passage 2 from damaging the first oil passage 2 by impact. As an alternative embodiment, the reinforcing ribs 5 consist of three or more.

The application of the heater body structure is not particularly limited, and the heater body structure in this embodiment is applied to an electric heater, and includes any heater body structure described in the above aspect.

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. A light body structure, comprising:

the electric heating device comprises a heater body piece (1) and a heating device body piece, wherein the heater body piece (1) comprises an upper oil pocket (11) and a lower oil pocket (12) which are respectively positioned at the upper end and the lower end of the heater body piece (1);

the oil cooler comprises a first oil path (2) arranged in the heater body sheet (1), the first oil path (2) is communicated with an upper oil pocket (11) and a lower oil pocket (12), the first oil path (2) comprises a flow limiting part (21), and the inner diameter of the first oil path (2) corresponding to the flow limiting part (21) is smaller than the average inner diameter of the first oil path (2).

2. The heat carrier structure according to claim 1, characterized in that the flow restriction (21) is provided close to the upper oil pocket (11).

3. The heat carrier structure of claim 2, further comprising:

and one end of the second oil path (3) is communicated with the lower oil pocket (12), and the other end of the second oil path is closed and extends towards the upper oil pocket (11).

4. The heat carrier structure of claim 3, further comprising:

and a third oil passage (4) that communicates the first oil passage (2) and the second oil passage (3).

5. The vehicle body structure according to claim 4, wherein the third oil passage (4) is provided horizontally, and the third oil passage (4) is located at a middle position in a height direction of the vehicle body sheet (1).

6. The heater body structure according to claim 5, wherein the flow restrictor (21) is provided above the third oil passage (4).

7. The heater body structure according to claim 6, characterized in that the flow restriction (21) is located at an intermediate position between the third oil passage (4) and the upper oil pocket (11).

8. The vehicle body structure according to claim 7, wherein there are two first oil passages (2), one second oil passage (3), and the second oil passage (3) is located between the two first oil passages (2).

9. The heat carrier structure of claim 1, characterized in that the heat carrier sheet (1) is provided with a rib (5), and the rib (5) is arranged parallel to the edge of the heat carrier sheet (1).

10. The heater body structure according to claim 9, wherein there are two reinforcing ribs (5), and the first oil passage (2) is distributed between the two reinforcing ribs (5).

11. An electric heater comprising a body structure as claimed in any one of claims 1 to 10.