Electric oil heater

Abstract

The present invention relates to the technical field of household appliances, and in particular to an electric oil heater. The electric oil heater comprises an oil heater body, which comprises: a plurality of heat sinks for heating the environment; a plurality of connecting columns, each of which is connected and arranged between two adjacent heat sinks; wherein the connecting column has a channel for hot oil in the heat sink to pass through, and at least one connecting column has a retractable structure to extend or shorten the distance between the heat sinks, thereby realizing that the electric oil heater can extend the distance between the two heat sinks by increasing the length of the connecting column during normal operation, thereby providing additional heat dissipation area, improving the indoor heating effect, and also providing additional space for drying towels or small pieces of clothing, which is highly practical.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to an electric oil heater. Background Art

[0002] At present, electric oil heaters are a very common type of heater on the market. They have the advantages of being safe, hygienic, odorless and having a long service life, so they are very popular in southern China.

[0003] The oil heater is mainly composed of heat sink, metal heating tube, temperature limiter, etc. The heat sink is composed of metal shell, upper and lower oil bags and oil circuit. The oil bag and oil circuit are filled with heat transfer oil, and the metal heating tube is installed in the lower oil bag. Different from the wall-mounted water heating radiator used in northern China, the oil heater is composed of only about 10 heat sinks, which are small in size and therefore have a small heat dissipation area. The heat dissipation capacity is very limited in a large room, and the heating effect is not good. At the same time, due to the relatively fixed placement and appearance, there is no bracket on the heater body for drying towels or small clothes. Summary of the invention

[0004] The main purpose of the present invention is to provide an electric oil heater to solve the problem of limited heat dissipation capacity and poor heating effect of the electric oil heater in the prior art.

[0005] To achieve the above-mentioned object, the present invention provides an electric oil heater, comprising an oil heater body, wherein the oil heater body comprises:

[0006] A number of heat sinks for providing heat to the environment;

[0007] A plurality of connecting posts, each of which is connected and arranged between two adjacent heat sinks;

[0008] The connecting column has a channel for hot oil in the heat sink to pass through, and at least one of the connecting columns has a retractable structure to extend or shorten the distance between the heat sinks.

[0009] Furthermore, the connecting column comprises an inner tube and an outer tube, the inner tube and the outer tube are nested with each other and can be pulled out and arranged, and the connecting column also comprises a sealing device arranged between the inner tube and the outer tube.

[0010] Furthermore, the connecting column also includes a first limiting structure formed at the end of the inner tube, and a second limiting structure formed at the end of the outer tube. When the inner tube and the outer tube are pulled outward and away, the first limiting structure and the second limiting structure cooperate with each other to limit the pulling position of the inner tube and the outer tube.

[0011] Furthermore, the first limiting structure is formed by bending the end of the inner tube outwards, and the second limiting structure is formed by bending the end of the outer tube inwards.

[0012] Furthermore, the sealing device is fastened to the first limiting structure and the second limiting structure respectively.

[0013] Furthermore, the sealing device comprises sealing rings respectively abutting against the outer surface of the inner cylinder and the inner surface of the outer cylinder.

[0014] Furthermore, the heat sink includes a heat sink plate, and an upper oil bag and a lower oil bag formed on the heat sink plate, and the upper oil bag is connected to the lower oil bag through an oil passage.

[0015] Furthermore, the connecting column comprises an upper connecting column whose two ends are connected to two adjacent upper oil bags, and a lower connecting column whose two ends are connected to two adjacent lower oil bags.

[0016] Furthermore, the inner cylinder and the oil bag structure on the heat sink are integrally formed.

[0017] Furthermore, the outer cylinder and the oil bag structure on the heat sink are integrally formed.

[0018] The technical solution of the present invention has the following advantages:

[0019] 1. In the electric oil heater provided by the present invention, the distance between the two heat sinks can be extended by increasing the length of the connecting column during normal operation, thereby providing additional heat dissipation area, improving the indoor heating effect, and providing additional space for drying towels or small pieces of clothing, which is highly practical.

[0020] 2. In the electric oil radiator provided by the present invention, the connecting column also includes a first limiting structure formed at the end of the inner cylinder, and a second limiting structure formed at the end of the outer cylinder. When the inner cylinder and the outer cylinder are pulled outward, the first limiting structure and the second limiting structure cooperate with each other to limit the pulling position of the inner cylinder and the outer cylinder. While ensuring the limiting effect, the structure is simple and compact.

[0021] 3. In the electric oil radiator provided by the present invention, the sealing device is fastened to the first limiting structure and the second limiting structure respectively, and the sealing device includes sealing rings respectively abutting against the outer surface of the inner cylinder and the inner surface of the outer cylinder. When the connecting column is extended and retracted, the sealing device has a good sealing effect and good stability.

[0022] 4. In the electric oil heater provided by the present invention, the inner cylinder and the outer cylinder are respectively formed integrally with the oil bag structure on the heat sink, so the processing difficulty is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0024] Figure 1 It is a schematic diagram of the main structure of the electric oil heater in an embodiment of the present invention, in which the connecting column is in a retracted position.

[0025] Figure 2 for Figure 1 The side view structural diagram of the electric oil heater is shown.

[0026] Figure 3 for Figure 1 The front view of the oil-filled electric heater is shown, in which the connecting column is in the extended position.

[0027] Figure 4 for Figure 3 The cross-sectional structure diagram of the connecting column in the electric oil heater is shown.

[0028] Among them, the reference numerals in the above drawings are:

[0029] 1. Oil heater body;

[0030] 11. heat sink; 111. upper oil bag; 112. lower oil bag; 113. heat sink; 114. oil circuit;

[0031] 12. Connecting column; 121. Outer cylinder; 122. Inner cylinder; 123. Sealing ring. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] like Figures 1 to 3 As shown, the electric oil heater in this embodiment includes an oil heater body 1, which includes: a plurality of heat sinks 11 for providing heat to the environment; a plurality of connecting columns 12, each connecting column 12 is connected and arranged between two adjacent heat sinks 11; wherein the connecting column 12 has a channel for hot oil in the heat sink 11 to pass through, and at least one connecting column 12 has a retractable structure to extend or shorten the distance between the heat sinks 11, and then by using the oil heater body 1 in this embodiment, the electric oil heater can be realized by increasing the length of the connecting column 12 during normal operation to extend the distance between the two heat sinks 11, thereby providing additional heat dissipation area and improving the indoor heating effect.

[0035] like Figure 4 As shown, the connecting column 12 in the specific embodiment includes an inner cylinder 122 and an outer cylinder 121, and the inner cylinder 122 and the outer cylinder 121 are nested with each other and can be pulled and extended. The connecting column 12 also includes a sealing device arranged between the inner cylinder 122 and the outer cylinder 121. When the connecting column 12 is extended and retracted, the extension of the connecting column 12 is achieved by pulling and extending the inner cylinder 122 and the outer cylinder 121, thereby increasing the heat dissipation area of ​​the oil heater body 1.

[0036] At the same time, after the connecting column 12 is extended, a larger space can be provided between two adjacent heat sinks 11, which can be used as a bracket to hang towels or small pieces of clothing, so that the drying effect can be achieved when the electric oil heater operates normally.

[0037] Preferably, the connecting column 12 further includes a first limiting structure formed at the end of the inner cylinder 122, and a second limiting structure formed at the end of the outer cylinder 121. When the inner cylinder 122 and the outer cylinder 121 are pulled outward and away, the first limiting structure and the second limiting structure cooperate with each other to limit the pulling position of the inner cylinder 122 and the outer cylinder 121. Specifically, the first limiting structure is formed by bending outward from the end of the inner cylinder 122, and the second limiting structure is formed by bending inward from the end of the outer cylinder 121, specifically, the ends of the inner cylinder 122 and the outer cylinder 121 are bent at 90 degrees. While ensuring the limiting effect, the structure is simple and compact.

[0038] Preferably, the sealing device is fastened to the first limiting structure and the second limiting structure respectively, and the sealing device includes a sealing ring 123 respectively abutting against the outer surface of the inner cylinder 122 and the inner surface of the outer cylinder 121. When the connecting column 12 is extended and retracted, the sealing device has a good sealing effect and good stability.

[0039] See also Figure 2 The heat sink 11 in this embodiment includes a heat sink 113, and an upper oil bag 111 and a lower oil bag 112 formed on the heat sink 113, and the upper oil bag 111 and the lower oil bag 112 are connected through an oil passage 114. The connecting column 12 includes an upper connecting column whose two ends are connected to two adjacent upper oil bags 111, and a lower connecting column whose two ends are connected to two adjacent lower oil bags 112.

[0040] Preferably, the inner cylinder 122 and the oil bag structure on the heat sink 11 are integrally formed, and the outer cylinder 121 and the oil bag structure on the heat sink 11 are integrally formed, so as to ensure that the connecting column 12 has good connection and heat dissipation effects and has low processing difficulty.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An electric oil heater, characterized in that: The invention comprises an oil heater body (1), wherein the oil heater body (1) comprises: A plurality of heat sinks (11) for providing heat to the environment; A plurality of connecting posts (12), each of the connecting posts (12) being connected to and arranged between two adjacent heat sinks (11); The connecting column (12) has a channel for hot oil in the heat sink (11) to pass through, and at least one of the connecting columns (12) has a retractable structure to extend or shorten the distance between the heat sinks (11); The connecting column (12) comprises an inner cylinder (122) and an outer cylinder (121), wherein the inner cylinder (122) and the outer cylinder (121) are mutually nested and can be pulled out and arranged, and the connecting column (12) also comprises a sealing device arranged between the inner cylinder (122) and the outer cylinder (121).

2. The electric oil heater according to claim 1, characterized in that: The connecting column (12) further comprises a first limiting structure formed at the end of the inner cylinder (122), and a second limiting structure formed at the end of the outer cylinder (121); when the inner cylinder (122) and the outer cylinder (121) are pulled outward and away from each other, the first limiting structure and the second limiting structure cooperate with each other to limit the pulling position of the inner cylinder (122) and the outer cylinder (121).

3. The electric oil heater according to claim 2, characterized in that: The first limiting structure is formed by bending the end of the inner cylinder (122) outwards, and the second limiting structure is formed by bending the end of the outer cylinder (121) inwards.

4. The electric oil heater according to claim 2, characterized in that: The sealing device is fastened to the first limiting structure and the second limiting structure respectively.

5. The electric oil heater according to claim 1, characterized in that: The sealing device comprises a sealing ring (123) respectively abutting against the outer surface of the inner cylinder (122) and the inner surface of the outer cylinder (121).

6. The oil-filled electric heater according to any one of claims 1 to 5, characterized in that: The heat sink (11) comprises a heat sink (113), and an upper oil bag (111) and a lower oil bag (112) formed on the heat sink (113); the upper oil bag (111) and the lower oil bag (112) are connected via an oil passage (114).

7. The electric oil heater according to claim 6, characterized in that: The connecting column (12) comprises an upper connecting column whose two ends are connected to two adjacent upper oil bags (111), and a lower connecting column whose two ends are connected to two adjacent lower oil bags (112).

8. The oil-heated electric heater according to any one of claims 1 to 5, characterized in that: The inner cylinder (122) and the oil bag structure on the heat sink (11) are integrally formed.

9. The oil-heated electric heater according to any one of claims 1 to 5, characterized in that: The outer cylinder (121) and the oil bag structure on the heat sink (11) are integrally formed.

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