CN111706903A

CN111706903A - Electric oil heater and heating sheet for same

Info

Publication number: CN111706903A
Application number: CN202010663824.2A
Authority: CN
Inventors: 唐爱红; 廖泓斌; 白相星; 衷卫健; 张毅; 喻辉
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2020-09-25

Abstract

The application relates to the technical field of heating devices, in particular to a heating sheet for an electric oil heater and the electric oil heater comprising the heating sheet. The oil sheet for the electric oil heater comprises an upper oil pocket, a lower oil pocket and an oil path, wherein the oil path comprises a first oil path close to the lower oil pocket and a second oil path close to the upper oil pocket, the first oil path is arranged in a curve form, and the second oil path is parallel to the direction of a connecting line of the upper oil pocket and the lower oil pocket. The first oil way below the heater piece is of a curve structure and can block the upward transfer rate of heat, so that more heat is gathered at the lower part and the middle part of the electric heating oil heater, the temperature field distribution of the heater body is changed, the upper part temperature of the electric heating oil heater is reduced, the overall temperature distribution of a product is more uniform, and the temperature of the product is ensured to meet the standard requirement.

Description

Electric oil heater and heating sheet for same

Technical Field

The application relates to the technical field of heating devices, in particular to a heating sheet for an electric oil heater and the electric oil heater comprising the heating sheet.

Background

The electric heaters of the electric oil heaters are widely used in places such as families, hotels and the like due to the advantages of convenience in carrying and use and the like, and are particularly more commonly used in places with damp and cool feeling and no heating in winter in south, and the use places are very wide. In the oil circuit structure of electric oil heater products on the market, the specifications of the upper oil circuit and the lower oil circuit of the heater body are the same, the temperature of the upper end of the heater sheet is higher than that of the lower end of the heater sheet, so that the temperature rise of the upper end of the heater body is easy to exceed the standard, the products cannot meet the national standard requirements, and potential safety hazards exist in the products.

Disclosure of Invention

In order to solve the technical problem, the application provides a spit of fland piece and electric oil spit of fland for electric oil spit of fland.

In order to achieve the above object, according to one aspect of the present invention, there is provided a sheet for an electric oil-filled radiator.

A spit of fland for electric oil-filled radiator according to an embodiment of the present application includes:

feeding oil;

discharging oil;

and the oil path comprises a first oil path close to the lower oil pocket and a second oil path close to the upper oil pocket, the first oil path is arranged in a curve form, and the second oil path is parallel to the direction of a connecting line of the upper oil pocket and the lower oil pocket.

Further, the total cross-sectional area of the first oil passage is larger than that of the second oil passage.

Further, the first oil path is communicated with the lower oil pocket, and the second oil path is communicated with the upper oil pocket.

Furthermore, the first oil path and the second oil path are provided with a plurality of oil paths.

Furthermore, a plurality of first oil passages are arranged in a staggered mode, and at least one oil passage junction is formed.

Furthermore, the number of the first oil paths is 2, the number of the second oil paths is 5, and the number of the first oil paths is 2, and the first oil paths are staggered to form two oil path junction points.

Further, the heater piece further comprises a flow dividing oil path, the flow dividing oil path is perpendicular to the second oil path, and the flow dividing oil path is communicated with one end of the first oil path, which is far away from the lower oil pocket, and one end of the second oil path, which is far away from the upper oil pocket.

Furthermore, a heating element is arranged in the lower oil pocket.

Further, the heater sheet is further provided with a temperature limiter, and the temperature limiter is arranged at the oil path junction point under the condition that the first oil path forms the oil path junction point.

In order to achieve the above object, according to a second aspect of the present invention, an electric oil-filled radiator is also provided.

According to the above-mentioned electric oil spit of fland that this application embodiment provided, be located the first oil circuit of spit of fland below and be the curve structure, can hinder the rate of heat upwards transmission to with the lower part and the middle part of the more gathering of heat at electric oil spit of fland, change spit of fland body temperature field distribution, reduce the upper portion temperature of electric oil spit of fland, make the holistic temperature distribution of product more even, and ensure that the temperature of product satisfies the standard requirement.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

fig. 1 schematically shows a front view of a sheet for an electric oil-filled radiator according to an embodiment of the present application;

FIG. 2 is a schematic rear view of a sheet for an electric oil-filled radiator according to an embodiment of the present disclosure;

FIG. 3 is a schematic side view of a sheet for an electric oil-filled radiator according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram illustrating an exploded view of a spit sheet for an electric oil-filled spit according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a structure of an oil pocket portion on a spit plate for an electric oil-filled spit according to an embodiment of the present application; and

fig. 6 is a schematic structural reference diagram of a lower oil pocket portion of a spit sheet for an electric oil-filled spit provided in an embodiment of the present application.

In the figure:

1. feeding oil; 2. discharging oil; 3. a first oil passage; 4. a second oil passage; 5. an oil path junction; 6. a shunt oil path; 7. a temperature limiter; 8. a transverse oil path; 9. a first sheet body; 10. the second sheet body.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying examples and figures 1-6.

Example 1

The embodiment of the application provides a heater piece, which is used for assembling to form an electric oil heater. As shown in fig. 1 to 6, the heater sheet for electric oil heater includes an upper oil pocket 1, a lower oil pocket 2, and an oil path, and a heating body for heating electric oil is provided in the lower oil pocket 2. The oil passages comprise a first oil passage 3 close to the lower oil pocket 2 and a second oil passage 4 close to the upper oil pocket 1, the first oil passage 3 is arranged in a curve form, and the second oil passage 4 is parallel to the direction of a connecting line of the upper oil pocket 1 and the lower oil pocket 2.

The heating mode of the oil heater product is that a heating body heats, so that heat conduction oil in an oil way inside the heater body transfers heat, and the heater body becomes hot. According to the principle of heat transfer upwards, the part of the product with the highest temperature rise is distributed at the upper end of the heater body, and the national standard requires that the temperature rise of the metal surface of the electric heating product is not more than 85K. In the traditional oil circuit structure of the heater body, the specifications of an upper oil circuit and a lower oil circuit of the heater body are the same, the temperature of the upper end of a heater sheet is higher than that of the lower end of the heater sheet, the temperature rise of the upper end of the heater body is easy to exceed the standard, so that the product cannot meet the national standard requirements, and the product has the potential safety hazard problem. In the above-mentioned spit of fland piece that this application embodiment provided, be located spit of fland piece below first oil circuit 3 and be the curve structure, can hinder the rate of heat upwards transmission to with the lower part and the middle part of more gathering at electric oil heater of heat, change spit of fland body temperature field distribution, reduce the upper portion temperature of electric oil heater, make the holistic temperature distribution of product more even, and ensure that the temperature of product satisfies the standard requirement.

On the basis of the above embodiment, the total cross-sectional area of the first oil path 3 is larger than the total cross-sectional area of the second oil path 4, so that the oil filling amount in the second oil path 4 at the upper end of the heater piece is smaller than the oil filling amount in the first oil path 3 at the lower end, and when the temperature is transmitted from the lower oil pocket 2 to the upper oil pocket 1, the heat transfer efficiency of the first oil path 3 is larger than that of the first oil path 3, so that the temperature rising speed of the second oil path 4 at the upper part is reduced, the problem of overhigh temperature of the second oil path 4 at the upper end of the heater body can be further avoided, and the temperature distribution of the heater piece on the whole is.

As shown in fig. 1 and 2, the first oil path 3 is communicated with the lower oil pocket 2, the second oil path 4 is communicated with the upper oil pocket 1, the number of the first oil path 3 and the second oil path 4 is not particularly limited, and may be one or more, and the number of the first oil path 3 and the number of the second oil path 4 may be the same or different.

In order to solve the problem of overhigh temperature rise of the edge of the heater body in the prior art, most products on the market control the problem of overhigh temperature of the edge of the heater body of the product through a high-temperature protection mode of a temperature limiter, in the prior art, the temperature difference of different areas of the electric heating oil heater is overlarge, the ordinary temperature of the limiter is higher, after the higher temperature area reaches the limit temperature of the limiter, the electric heating oil heater stops heating the electric heating oil, the low-temperature area is further cooled, and the heating effect of the product and the user experience are influenced. In the embodiment of the present application, as shown in fig. 1 to 4, a plurality of first oil paths 3 may be arranged in a staggered manner, and at least one oil path junction 5 is formed, and it is determined through experiments that the oil path junction 5 is an area with the highest temperature in the oil path. So can be in with temperature limiter 7 sets up oil circuit junction 5 department, this position is the highest position of hot air temperature of spit of fland, can choose for use high parameter temperature limiter 7, makes temperature limiter 7's sensitivity obtain promoting, can suitably improve the temperature setting, and the product is generating heat the operation process like this, and product outage guard time is the temperature limiter 7 of low parameter relatively will be a little longer, directly improves the product effect of heating, solves the user pain point that the product heating effect is poor.

As an alternative embodiment, as shown in fig. 1 to 6, there are 2

first oil paths

3, 5 second oil paths 4, and two oil path junctions 5 are formed by interleaving 2 first oil paths 3. The heater piece further comprises a flow dividing oil path 6, the flow dividing oil path 6 is perpendicular to the second oil path 4, the flow dividing oil path 6 is communicated with one end of the first oil path 3 departing from the lower oil pocket 2 and one end of the second oil path 4 departing from the upper oil pocket 1, and the temperature limiter 7 is arranged at an oil path junction point 5 close to the lower oil pocket 2. The shunting oil path 6 is used for collecting the electric heating oil in the first oil paths 3 and then shunting the electric heating oil to the second oil paths 4, so that the first oil paths 3 and the second oil paths 4 are communicated. The two first oil paths 3 can be communicated through a transverse oil path 8 perpendicular to the second oil path 4, on one hand, the communication among the first oil paths 3 which are arranged in a bent mode is achieved, on the other hand, a part of liquid oil medium flows transversely, the upward heat transfer rate is reduced, and the temperature difference between the upper portion and the lower portion is further balanced.

In some embodiments, as shown in fig. 4 to 6, the heater sheet includes a first sheet 9 and a second sheet 10 connected to each other, and the first sheet 9 and the second sheet 10 form an upper oil pocket 1, a lower oil pocket 2, a first oil passage 3, and a second oil passage 4 therebetween. The connection form of first lamellar body 9 and second lamellar body 10 is convenient for realize the processing of first oil circuit 3 and second oil circuit 4 isotructure and the realization of spit of fland structure, can form open-ended first oil circuit 3, second oil circuit 4 isotructure through the structural deformation of technologies such as punching press of first lamellar body 9 and second lamellar body 10, and first lamellar body 9 and second lamellar body 10 lock are connected the back, can be in order to form confined first oil circuit 3 and second oil circuit 4 isotructure. Preferably, first lamellar body 9 and second lamellar body 10 are all made through the aluminum plate punching press, and first lamellar body 9 and the 10 thin walls of second lamellar body that stamping process formed, the quality is light, and coefficient of heat conductivity is big, is favorable to the heat conduction, and corrosion resisting property is high, and welding property is good and the surface is easily handled.

Example 2

The embodiment provides an electric oil heater, and its structure includes the spit of fland piece that provides in this application embodiment 1, and a plurality of spit of fland pieces connect after setting up side by side and form electric oil heater.

Because the electric oil heater has the advantages that the electric oil heater has all the technical effects, the electric oil heater with the electric oil heater is not described in detail herein. The electric oil-filled radiator according to the above embodiment may further include other necessary components or structures such as a control structure, a housing, a control circuit, a connector, etc., and the corresponding arrangement position and connection relationship can refer to the electric oil-filled radiator in the prior art, and the connection relationship, operation and working principle of each un-mentioned structure are known to those skilled in the art and will not be described in detail herein.

Some embodiments in this specification are described in a progressive or parallel manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spit of fland for electric oil spit of fland, characterized by, includes:

an oil feeding bag (1);

a lower oil pocket (2);

the oil circuit comprises a first oil circuit (3) close to the lower oil pocket (2) and a second oil circuit (4) close to the upper oil pocket (1), the first oil circuit (3) is arranged in a curve form, and the second oil circuit (4) is parallel to the direction of a connecting line of the upper oil pocket (1) and the lower oil pocket (2).

2. The heat patch according to claim 1, characterized in that the total cross-sectional area of the first oil channels (3) is larger than the total cross-sectional area of the second oil channels (4).

3. The sheet according to claim 1, wherein said first oil passage (3) communicates with said lower oil pocket (2), and said second oil passage (4) communicates with said upper oil pocket (1).

4. The sheet according to claim 1, wherein the first oil path (3) and the second oil path (4) are each provided in a plurality.

5. The heating element according to claim 4, characterized in that a plurality of said first oil channels (3) are arranged staggered with respect to each other and form at least one oil channel junction (5).

6. The sheet according to claim 1, wherein said first oil channels (3) are provided with 2, said second oil channels (4) are provided with 5, and said 2 first oil channels (3) are staggered to form two oil channel junctions (5).

7. The sheet according to claim 6, further comprising a shunt oil path (6), wherein the shunt oil path (6) is perpendicular to the second oil path (4), and the shunt oil path (6) is respectively communicated with one end of the first oil path (3) facing away from the lower oil pocket (2) and one end of the second oil path (4) facing away from the upper oil pocket (1).

8. The sheet according to claim 1, wherein a heating element is provided in the lower oil pocket (2).

9. Sheet according to any of claims 1-8, characterized in that a temperature limiter (7) is arranged on the sheet, and in case the first oil channel (3) forms an oil channel junction (5), the temperature limiter (7) is arranged at the oil channel junction (5).

10. An electric oil-filled radiator comprising the radiator sheet according to any one of claims 1 to 9.