CN212132646U - Radiating fin, heating body and electric heater - Google Patents

Abstract

The utility model provides a fin and heat-generating body and electric heater, include: the oil pocket structure comprises an upper oil pocket formed at the top of the radiating fin and a lower oil pocket formed at the bottom of the radiating fin; and the heat conduction oil path is communicated with the upper oil pocket and the lower oil pocket, and the through hole is formed in the area between the upper oil pocket and the edge of the radiating fin. The highest position of the edge temperature of the radiating fin is generally concentrated in the upper oil pocket area. And be provided with the through-hole through the border position of last oil pocket with the fin to the central high temperature region that changes the oil pocket position is to the coefficient of heat conductivity at fin edge, make partial temperature transmission medium become the air by the metal, reduce the thermal conductivity, reach thermal-insulated purpose, reduce the temperature at fin edge, prevent that the fin from scalding the user, and simultaneously, through setting up the through-hole, can avoid among the prior art through increase electric oil heater heat dissipation surface area, lead to the problem appearance of oil heater overall mass and area occupation increase.

Description

Radiating fin, heating body and electric heater

Technical Field

The utility model relates to the technical field of household appliances, concretely relates to fin and heat-generating body and electric heater.

Background

The electric oil heater is a safe and reliable space heater popular in recent years, and the heater is usually provided with a heating rod arranged in a cavity of a radiating fin, and heat conducting oil is injected into an oil path around the cavity. When the power supply is switched on, the heat conducting oil around the heating rod is heated and rises to the upper part of the cavity, and the heat is radiated out through the surface of the radiating fin along the convection circulation of the oil way, so that the space environment is heated. The heat conducting oil cooled by the air descends to the periphery of the heating rod along the oil path to be heated again, and a new circulation is started.

According to the prior art, for the electric oil heater, the surface temperature rise of the edge of the heater body is reduced mainly by expanding the heat dissipation surface area of the heater body and the like, so that the safety standard requirement is met, the user is prevented from being scalded, the occupied area and the weight of the electric oil heater can be increased, the application environment of the electric oil heater is limited, and the universality is reduced.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art through increase electric oil heater heat radiating surface area in order to prevent that hot oil heater surface temperature is too high, leads to electric oil heater area occupation and weight increase's defect to a fin and heat-generating body and electric heater are provided.

The utility model provides a cooling fin, include: the oil pocket structure comprises an upper oil pocket formed at the top of the radiating fin and a lower oil pocket formed at the bottom of the radiating fin;

and the heat conduction oil path is communicated with the upper oil pocket and the lower oil pocket, and the through hole is formed in the area between the upper oil pocket and the edge of the radiating fin.

The radiating fins are arranged in a rectangular sheet shape, and the through holes are adjacent to the side edges of the radiating fins.

The through-hole sets up go up the both sides position of oil pocket, just the upper end of through-hole with the top parallel and level setting of going up the oil pocket, the lower extreme of through-hole extends to go up the below position of oil pocket bottom.

The through hole is a rectangular strip-shaped long hole.

The through hole is at least partially disposed between the heat conductive oil path and a side edge of the heat sink.

The through holes are arranged in a linear arrangement.

The through holes are arranged in multiple rows, and the through holes in two adjacent rows are arranged in a staggered mode.

The utility model also provides a heat-generating body, include:

the radiating fins are arranged side by side;

a heating rod simultaneously penetrating at the oil outlet position of each radiating fin.

The utility model also provides an electric heater, include: the above-mentioned heating element;

the temperature control element is arranged on the heating body;

and the indicator light is arranged on the heating body and electrically connected with the temperature control element.

The electric heater also comprises an auxiliary device which is arranged on the heating body.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a cooling fin, include: the oil pocket structure comprises an upper oil pocket formed at the top of the radiating fin and a lower oil pocket formed at the bottom of the radiating fin; and the heat conduction oil path is communicated with the upper oil pocket and the lower oil pocket, and the through hole is formed in the area between the upper oil pocket and the edge of the radiating fin.

The electric oil heater is in the course of the work, and the fin generates heat on the one hand, and the air that drives near the fin is the natural convection current motion, leads to below air temperature relatively lower, and the top air temperature is higher, and upper and lower two parts ambient temperature difference is great, and upper portion dispersion heat piece temperature is higher relatively, and on the other hand conduction oil can move to the last oil pocket after being heated by the heating rod that is located electric oil heater bottom side, leads to the high temperature conduction oil of going up the oil pocket comparatively concentrated, and the temperature is higher. Furthermore, the heat transfer oil in the oil pocket structure and the heat transfer oil path is not completely filled, and the oil pocket is usually filled with a part of air and a part of heat transfer 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, the temperature of the liquid level part of the heat conduction oil is higher, and the highest position of the edge temperature of the radiating fin is usually concentrated in the upper oil pocket area. And be provided with the through-hole through the border position of last oil pocket with the fin to the central high temperature region that changes the oil pocket position is to the coefficient of heat conductivity at fin edge, make partial temperature transmission medium become the air by the metal, reduce the thermal conductivity, reach thermal-insulated purpose, reduce the temperature at fin edge, prevent that the fin from scalding the user, and simultaneously, through setting up the through-hole, can avoid among the prior art through increase electric oil heater heat dissipation surface area, lead to the problem appearance of oil heater overall mass and area occupation increase.

2. The utility model provides a radiating fin, through-hole set up go up the both sides position of oil pocket, just the upper end of through-hole with the top parallel and level setting of going up the oil pocket, the lower extreme of through-hole extends to go up the below position of oil pocket bottom.

Because of the consideration to aspects such as support intensity and security, the interval of the top side of going up the oil pocket and the upper edge of fin is usually far greater than the distance of going up oil pocket and fin side edge, make the high temperature region of fin concentrate on last oil pocket and correspond fin both sides border position department like this, it has the heat conduction oil circuit with lower intercommunication between the oil pocket simultaneously to go up the oil pocket, the transition position department of going up oil pocket intercommunication oil circuit also belongs to the high temperature region, so, the both sides position of last oil pocket corresponds and sets up the through-hole, can concentrate the heat of the higher fin border region of reduction in temperature, effectively prevent that the fin from scalding.

3. The utility model provides a heat dissipation fin, it is a plurality of the through-hole is the linear arrangement setting.

The through holes are linearly arranged, so that the through holes are used as auxiliary supports through the radiating fin intervals among the through holes on the premise of ensuring the heat insulation function, the situation that the edge strength of the radiating fins is reduced due to the fact that single long holes are formed is avoided, the situations such as deformation are avoided, and the service life of the radiating fins is prolonged.

4. The utility model provides a radiating fin, it is a plurality of the through-hole is multiseriate setting, and adjacent two the through-hole sets up in a staggered way each other.

The through holes are arranged in multiple rows, so that the heat conductivity coefficient from a central high-temperature area where the oil way is arranged to the edge of the radiating fin can be further changed, the heat insulation effect is more obvious, meanwhile, the through holes are arranged in a staggered mode, the metal heat transfer path from the oil pocket on the radiating fin to the edge of the radiating fin is changed from a single direction to a bent direction, the distance of the heat transfer path is increased, and auxiliary heat insulation is realized.

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 embodiments or the technical solutions in 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a heat sink provided in an embodiment of the present invention;

fig. 2 is a schematic structural view of another embodiment of the heat sink shown in fig. 1.

Description of reference numerals:

1-cavity hole; 2-oil pocket structure; 3-heat conduction oil path; 4-a through hole; 11-upper chamber part; 12-lower chamber part; 21-oil feeding; 22-oil drain.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1-2, the present embodiment provides a heat sink, which includes an oil pocket structure 2, a heat conduction oil path 3 communicating with the oil pocket structure 2, and a through hole 4.

The radiating fin is rectangular and flaky, each corner is provided with a fillet and comprises a cavity hole 1, an upper cavity part 11 and a lower cavity part 12 are respectively arranged in the cavity hole 1 along the height direction, and the lower cavity part 12 is connected with the heating rod to provide heat for the radiating fin. An upper oil pocket 21 is arranged along the circumferential side of the upper cavity 11, a lower oil pocket 22 is arranged along the circumferential side of the lower cavity 12, the heat conduction oil path 3 is communicated with the upper oil pocket 21 and the lower oil pocket 22, and heat conduction oil is arranged in the upper oil pocket 21, the lower oil pocket 22 and the heat conduction oil path 3.

In this embodiment, the heat-conducting oil paths 3 are three paths and arranged in the vertical direction, and the middle parts of the three heat-conducting oil paths 3 are communicated. As an alternative embodiment, the heat transfer oil path 3 may be disposed in a zigzag manner or may not be connected in the middle. As other alternative embodiments, one or more oil pockets may be provided, and the arrangement position of the heat-conducting oil path 3 may be adjusted according to the arrangement number and arrangement position of the oil pockets.

Through holes 4 are arranged along the edge positions of the upper oil pocket 21 and the radiating fins. In the present embodiment, the through-holes 4 have the same structure, and as an alternative embodiment, the through-holes 4 may have different structures.

In the working process of the electric oil heater, on one hand, the heat radiating fins generate heat to drive air near the heat radiating fins to do natural convection motion, so that the temperature of air below is relatively low, the temperature of air above is relatively high, the difference of the environmental temperatures of the upper part and the lower part is relatively large, the temperature of the upper part of the heat radiating fins is relatively high, on the other hand, the heat conducting oil can move to the upper oil pocket 21 after being heated by the heating rod positioned at the bottom side of the electric oil heater, so that the high-temperature heat conducting oil of the upper oil pocket. Furthermore, the conduction oil in the oil pocket structure 2 and the conduction oil path 3 is not completely filled, and generally the upper oil pocket 21 has a portion of air and a portion of conduction oil. In the using 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, the temperature of the liquid level part of the heat conduction oil is higher, and the highest position of the edge temperature of the radiating fin is usually concentrated in the area of the upper oil pocket 21. And through being provided with through-hole 4 between the border position of last oil pocket 21 and fin to the central high temperature region that changes oil pocket 21 position is to the coefficient of heat conductivity at fin edge, make partial temperature transfer medium become the air by the metal, reduce the thermal conductivity, reach thermal-insulated purpose, reduce the temperature at fin edge, prevent that the fin from scalding the user, and simultaneously, through setting up through-hole 4, can avoid among the prior art through increase electric oil spit of fland heat radiating surface area, lead to the problem appearance of the whole quality of oil spit of fland and area increase.

In the present embodiment, the heat sink is provided in a rectangular sheet shape, and the through-hole 4 is provided adjacent to the side edge of the heat sink. In the present embodiment, the through holes 4 are disposed at two side positions of the upper oil pocket 21, the upper ends of the through holes 4 are disposed flush with the top of the upper oil pocket 21, and the lower ends of the through holes 4 extend to a position below the bottom of the upper oil pocket 21 by a predetermined length, which is typically 5-20 cm, and in the present embodiment, the predetermined length is 10 cm.

In consideration of support strength, safety and the like, the distance between the top side of the upper oil pocket 21 and the upper edge of the radiating fin is usually far greater than the distance between the upper oil pocket 21 and the side edge of the radiating fin, so that the high-temperature area of the radiating fin is concentrated at the position of the edge of the two sides of the corresponding radiating fin of the upper oil pocket 21, meanwhile, the upper oil pocket 21 is communicated with the lower oil pocket 22 to form a heat conduction oil path 3, the transition position where the upper oil pocket 21 is communicated with the oil path also belongs to the high-temperature area, therefore, the through holes 4 are correspondingly arranged at the positions of the two sides of the upper oil pocket 21, the heat of the.

The through holes 4 are not required to be arranged, can be of a continuous structure and are arranged in a long hole shape, and also can be of a discontinuous structure and are formed by arranging a plurality of holes at intervals. As an alternative embodiment, the through hole 4 may be formed in a shape of a long hole having a semi-kidney shape, and partially disposed on the upper side of the upper oil pocket 21. In the embodiment, the through hole 4 may extend to an area between the heat-conducting oil path 3 and the side edge position of the heat sink, so that the heat insulation effect may be further increased, and the safety of the heat sink may be improved.

As another embodiment, as shown in the figure, the through holes 4 are discontinuous structures, and are arranged in multiple rows, and each row is in a linear arrangement extending in parallel and in the same direction. The through holes 4 which are arranged linearly are used as auxiliary supports through the radiating fin intervals among the through holes 4 on the premise of ensuring the heat insulation function, so that the edge strength of the radiating fin is prevented from being reduced due to the arrangement of a single long hole, the deformation and other conditions are avoided, and the service life of the radiating fin is prolonged. The through holes 4 are arranged in multiple rows, and the through holes 4 in two adjacent rows are staggered with each other. The multi-column arrangement can further change the heat conductivity coefficient from the central high-temperature area of the oil path position to the edge of the radiating fin, the heat insulation effect is more obvious, and meanwhile, the through holes 4 are arranged in a staggered manner, so that the metal heat transfer path from the oil path to the edge of the radiating fin on the radiating fin is changed from a single direction to bending, the distance of the heat transfer path is increased, and auxiliary heat insulation is realized.

Specifically, the shape of the through hole 4 is not specifically required, and in this embodiment, the through hole 4 is rectangular, and the short sides of adjacent through holes 4 in the vertical direction are opposite and parallel. As an alternative embodiment, the through holes 4 may be circular and arranged in a single row or multiple rows along a line connecting the centers of circles; as an alternative embodiment, the through-holes 4 are arranged in a rectangular shape and at the same inclination angle to the horizontal.

Example 2

This embodiment provides a heat-generating body including the heat-radiating fin and the heating rod provided in embodiment 1. The plurality of radiating fins are arranged side by side, and the heating rod is simultaneously arranged at the position of the lower cavity part 12 of each radiating fin in a hole shape in a penetrating way.

Example 3

The present embodiment provides an electric heater, which includes the heating element, the temperature control element, the indicator light, and the auxiliary device provided in embodiment 2. The temperature control element and the indicator light are both arranged on the heating body, and the indicator light is electrically connected with the temperature control element.

The auxiliary devices include, but are not limited to: the clothes hanger is arranged above the heating body and is suitable for drying clothes and the like; the heating body can be supported or driven by the movable support to move. The movable support can be of a folding structure and also can be of an integrally formed structure, when the folding structure is adopted, the space occupation amount is reduced conveniently when the movable support is idle, and the storage efficiency of the electric heater is improved.

The electric heater is provided with a convection device. Because the air among the radiating fins is in a natural convection state, the hot air floats upwards along the radiating fins and is discharged into the space upwards from the top ends of the radiating fins, and the cold air is supplemented from the bottoms of the radiating fins. Can strengthen the natural convection intensity of oil spit of fland outside air through setting up the convection current device for the speed in space is upwards discharged to the hot-air along the fin, has strengthened the air mobility between the fin, has reduced the upper and lower difference in temperature of electric heater, has improved user's use and has experienced.

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 can be made without departing from the scope of the invention.

Claims (10)

1. A heat sink, comprising:

the oil pocket structure (2) comprises an upper oil pocket (21) formed at the top of the radiating fin and a lower oil pocket (22) formed at the bottom of the radiating fin;

and the heat conduction oil path (3) is communicated with the upper oil pocket (21) and the lower oil pocket (22), and a through hole (4) is formed in an area between the upper oil pocket (21) and the edge position of the radiating fin.

2. A heat sink according to claim 1, characterised in that the heat sink is arranged in the form of a rectangular plate, the through-holes (4) being arranged adjacent to the side edges of the heat sink.

3. The fin according to claim 2, wherein the through holes (4) are provided at both side positions of the upper oil pocket (21), and an upper end of the through hole (4) is disposed flush with a top of the upper oil pocket (21), and a lower end of the through hole (4) extends to a position below a bottom of the upper oil pocket (21).

4. A heat sink according to claim 2 or 3, wherein the through-holes (4) are rectangular elongated holes.

5. A heat sink according to claim 4, characterised in that the through-hole (4) is at least partly arranged between the heat-conducting oil circuit (3) and a side edge of the heat sink.

6. A heat sink according to claim 2, wherein a number of said through holes (4) are arranged in a linear array.

7. A heat sink according to claim 6, wherein a plurality of said through holes (4) are arranged in a plurality of columns, and two adjacent columns of said through holes (4) are arranged in a staggered manner with respect to each other.

8. A heat-generating body, characterized by comprising:

a plurality of the fins of any of claims 1-7, a plurality of the fins being disposed side-by-side with one another;

a heating rod is arranged at the position of the oil outlet (22) of each radiating fin in a penetrating mode.

9. An electric heater, comprising:

a heat-generating body described in claim 8;

the temperature control element is arranged on the heating body;

and the indicator light is arranged on the heating body and electrically connected with the temperature control element.

10. The electric heater of claim 9, further comprising an auxiliary device disposed on the heating body.

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