Heater and heating equipment

Abstract

The utility model provides a heater and heating equipment, and belongs to the technical field of electric heating. The heater comprises a heat exchange plate, a plurality of electric heating rods and a plurality of U-shaped pipes, the heat exchange plate is provided with a plurality of fluid channels and a plurality of installation cavities, the installation cavities and the fluid channels are arranged alternately, the electric heating rods are arranged in the installation cavities, the electric heating rods and the fluid channels are separated by thin walls, and every two adjacent fluid channels are communicated through the corresponding U-shaped pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating, in particular to a heater and a water heater. Background Art

[0002] At present, the electric heaters used in products such as steam ovens, instant electric water heaters, and water dispensers work on the principle of die-casting a heating rod and a water pipe together. The heating rod heats the die-cast aluminum, and then the heat on the die-cast aluminum is conducted to the water pipe to achieve heat exchange. This heat exchange principle has the problems of low heat exchange efficiency and large thermal inertia, resulting in relatively poor user experience. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a heater and a heating device, in which the heater realizes the separation of water and electricity.

[0004] To achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0005] According to one aspect of the utility model, a heater is provided, which includes a heat exchange plate, a plurality of electric heating rods and a plurality of U-shaped tubes. The heat exchange plate has a plurality of fluid channels and a plurality of installation cavities, and the installation cavities and the fluid channels are arranged alternately. The electric heating rods are arranged in the installation cavities, and there is a thin wall between the electric heating rods and the fluid channels. Adjacent two fluid channels are connected by U-shaped tubes.

[0006] According to an embodiment of the utility model, at least two installation cavities are respectively arranged on both sides of each fluid channel.

[0007] According to an embodiment of the utility model, the installation cavities are arranged in a matrix or a ring and surround the fluid channels.

[0008] According to an embodiment of the utility model, the heat exchange plate includes multiple metal plates, and the heat exchange plate is formed by stacking multiple metal plates.

[0009] According to an embodiment of the utility model, the fluid channels are formed by jointly enclosing adjacent two layers of metal plates.

[0010] According to an embodiment of the utility model, each layer of metal plate is provided with a plurality of parallel installation cavities.

[0011] According to an embodiment of the utility model, the metal plate includes a plurality of installation cylinders and a plurality of strip-shaped connecting pieces. The installation cylinders and the strip-shaped connecting pieces are arranged alternately, and both ends of the strip-shaped connecting piece in the short side direction are fixedly connected to the side walls of adjacent two installation cylinders. The cavity of the installation cylinder is the installation cavity, and the side walls of the installation cylinders of adjacent two layers are abutted and fixedly connected.

[0012] According to an embodiment of the present utility model, a first groove and a second groove with opposite openings are jointly defined by the strip-shaped connecting piece and two adjacent mounting cylinders, and the first groove and the second groove on two adjacent metal plates jointly form a fluid channel.

[0013] The present utility model also discloses a heating device, including the above-mentioned heater.

[0014] According to an embodiment of the present utility model, the heating device is an electric water heater or a steam oven.

[0015] One embodiment of the present utility model has the following advantages or beneficial effects:

[0016] For the heater of the present utility model, since it includes a heat exchange plate, a plurality of electric heating rods and a plurality of U-shaped tubes, the heat exchange plate has a plurality of fluid channels and a plurality of mounting cavities, the mounting cavities and the fluid channels are arranged alternately, the electric heating rods are arranged in the mounting cavities, and there is a thin wall between the electric heating rods and the fluid channels, two adjacent fluid channels are connected by U-shaped tubes, and the fluid channels and the U-shaped tubes jointly form a serpentine channel, so as to increase the heat exchange area. When the heater in the embodiment of the present utility model is applied to an electric water heater, one end of the serpentine channel is connected to the tap water pipe, and the other end is connected to the cavity of the inner tank. When water flows through the fluid channel, heat can be obtained from the electric heating rods in the mounting cavity on both sides or all around the fluid channel, with a large heat exchange area and high heat exchange efficiency, thus realizing rapid heating. The heater of the present utility model does not require overall or partial aluminum casting for auxiliary heat transfer. Therefore, the heater of the present utility model reduces the thermal inertia, and further improves the system control accuracy of the electric water heater, and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By referring to the drawings and describing its exemplary embodiments in detail, the above and other features and advantages of the present utility model will become more obvious.

[0018] Figure 1 is a cross-sectional view of a heater shown according to an exemplary embodiment.

[0019] Figure 2 is a perspective view of a heater shown according to an exemplary embodiment.

[0020] Among them, the reference numerals are explained as follows:

[0021] 1. Heat exchange plate; 11. Fluid channel; 12. Mounting cavity; 13. Metal plate; 131. Mounting cylinder; 132. Strip-shaped connecting piece; 133. First groove; 134. Second groove; 2. Electric heating rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this utility model will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed description will be omitted.

[0023] The terms "a", "an", "the", and "said" are used to denote the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.

[0024] As Figure 1-2 shown, a heater according to an embodiment of the present utility model includes a heat exchange plate 1, a plurality of electric heating rods 2, and a plurality of U-shaped tubes.

[0025] The heat exchange plate 1 has a plurality of fluid channels 11 and a plurality of mounting cavities 12, and the mounting cavities 12 and the fluid channels 11 are arranged alternately.

[0026] The mounting cavity 12 is a semi-closed cavity, the diameter of the mounting cavity 12 is slightly larger than the diameter of the electric heating rod 2, the electric heating rod 2 is disposed in the mounting cavity 12, and there is a thin wall between the electric heating rod 2 and the fluid channel 11. The mounting cavity 12 is closed by a closable cover body to enclose the electric heating rod 2, avoid contact between the electric heating rod 2 and the water in the fluid channel 11, realize separation of water and electricity, and improve safety.

[0027] Both ends of the U-shaped tube are detachably or welded and fixed to the ports of two adjacent fluid channels 11 respectively, and two adjacent fluid channels 11 are connected by the U-shaped tube. The fluid channels 11 and the U-shaped tube together form a serpentine channel. As Figure 2 shown by the arrow in the figure, the water flow flows out after multiple bends in the serpentine channel, realizing an increase in the heat exchange area and an improvement in the heat exchange efficiency.

[0028] When the water-and-electricity separation heater according to the embodiment of the present utility model is applied to an electric water heater, one end of the serpentine channel is connected to the tap water pipe, and the other end is connected to the cavity of the inner tank. When the water flow passes through the fluid channel 11, both sides or all around of the fluid channel 11 can obtain heat from the electric heating rod 2 in the mounting cavity 12. The heat exchange area is large and the heat exchange efficiency is high, so as to realize rapid heating. The water-and-electricity separation heater of the present utility model does not require overall or partial casting of aluminum for auxiliary heat transfer. Therefore, the heater of the present utility model realizes a reduction in thermal inertia, and further realizes an improvement in the system control accuracy of the electric water heater and an improvement in the user experience.

[0029] As Figure 1-2As shown, in a preferred embodiment of the present utility model, two installation cavities 12 are respectively arranged on both sides of each fluid channel 11 to achieve uniform heating and improve heating efficiency.

[0030] As Figure 1-2 shown, in a preferred embodiment of the present utility model, the installation cavities 12 are arranged in a matrix or annular pattern and surround the fluid channel 11 to achieve uniform heating and improve heating efficiency.

[0031] As Figure 1-2 shown, in a preferred embodiment of the present utility model, the heat exchange plate 1 includes multiple metal plates 13, and the heat exchange plate 1 is formed by stacking multiple metal plates 13. For example, the material of the metal plate 13 is stainless steel.

[0032] Of course, the material of the metal plate 13 is not limited to stainless steel, and it can also be a copper plate or an aluminum plate. Those skilled in the art can select the material of the metal plate 13 according to actual needs.

[0033] In a preferred embodiment of the present utility model, adjacent two layers of metal plates 13 are connected by welding or integrally formed, and integrally forming has the advantages of being convenient for manufacturing and improving manufacturing efficiency.

[0034] As Figure 1-2 shown, in a preferred embodiment of the present utility model, the fluid channel 11 is formed by jointly enclosing adjacent two layers of metal plates 13. Or, the installation cavity 12 is formed by jointly enclosing adjacent two layers of metal plates 13.

[0035] As Figure 1-2 shown, in a preferred embodiment of the present utility model, each layer of metal plate 13 is provided with a plurality of parallel installation cavities 12. The cross-section of the installation cavity 12 is in a straight strip shape.

[0036] Of course, the cross-section of the installation cavity 12 is not limited to a straight strip shape. For example, it can also be annular or spiral. Those skilled in the art can select the cross-section shape of the installation cavity 12 according to actual needs.

[0037] As Figure 1-2 shown, in a preferred embodiment of the present utility model, the metal plate 13 includes a plurality of installation cylinders 131 and a plurality of strip-shaped connecting pieces 132. The installation cylinders 131 and the strip-shaped connecting pieces 132 are arranged alternately, and both ends of the strip-shaped connecting piece 132 in the short side direction are fixedly connected to the side walls of two adjacent installation cylinders 131. The cavity of the installation cylinder 131 is the installation cavity 12, and the side wall surfaces of adjacent two layers of installation cylinders 131 are in sealing contact and fixedly connected.

[0038] As Figure 1-2As shown, in a preferred embodiment of the present utility model, a strip-shaped connecting piece 132 and two adjacent mounting cylinders 131 jointly enclose a first groove 133 and a second groove 134 with opposite openings, and the first grooves 133 and the second grooves 134 on adjacent two layers of metal plates 13 jointly enclose a fluid channel 11.

[0039] The heater of the present utility model can be expanded according to different devices or different heat load requirements, and can be expanded according to the small unit of the heater shown in the figure. The expansion direction can be to increase the number of stacked layers of the metal plate 13.

[0040] Of course, the expansion method is not limited to increasing the number of stacked layers of the metal plate 13. For example, the number of fluid channels 11 and mounting cavities 12 can also be increased for expansion. Those skilled in the art can select the expansion method according to actual needs.

[0041] The present utility model also provides a heating device including the above-mentioned heater. Due to the adoption of the above-mentioned heater, the heating device of the present utility model achieves the effects of improving heating efficiency, reducing thermal inertia, and ensuring use safety.

[0042] In an embodiment of the present utility model, the heating device is any one of an electric water heater, a steam oven, and a water dispenser.

[0043] For example, when the heater of the present utility model is applied to a steam oven, the heater is arranged in the evaporator of the oven to heat water into steam.

[0044] For example, when the heater of the present utility model is applied to a water dispenser, the heater is arranged in the water dispenser, and one end of the serpentine channel communicates with the water purification bucket, and the other end of the serpentine channel communicates with the water receiving valve.

[0045] Of course, the application of the heater of the present utility model is not limited to the above-listed fields, and those skilled in the art can select the application field according to actual needs.

[0046] In the embodiments of the present utility model, the term "a plurality of" refers to two or more, unless otherwise clearly defined. Terms such as "mounting", "connecting", and "fixing" should all be understood in a broad sense. For example, "connecting" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0047] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present utility model.

[0048] In the description of this specification, the description of terms such as "one embodiment" and "one preferred embodiment" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0049] The above are only the preferred embodiments of the embodiments of the present utility model, and are not used to limit the embodiments of the present utility model. For those skilled in the art, the embodiments of the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model shall be included within the protection scope of the embodiments of the present utility model.

Claims

1. A heater, characterized in that, It includes a heat exchange plate (1), a plurality of electric heating rods (2) and a plurality of U-shaped tubes. The heat exchange plate (1) has a plurality of fluid channels (11) and a plurality of installation cavities (12). The installation cavities (12) and the fluid channels (11) are arranged alternately. The electric heating rods (2) are arranged in the installation cavities (12), and there is a thin wall separating the electric heating rods (2) from the fluid channels (11). Adjacent fluid channels (11) are connected by the U-shaped tubes.

2. The heater according to claim 1, characterized in that, At least two of the installation cavities (12) are respectively arranged on both sides of each fluid channel (11).

3. The heater according to claim 2, characterized in that, The installation cavities (12) are arranged in a matrix or in a ring and surround the fluid channels (11).

4. The heater according to claim 1, characterized in that, The heat exchange plate (1) includes multiple metal plates (13), and the heat exchange plate (1) is formed by stacking multiple metal plates (13).

5. The heater according to claim 4, characterized in that, The fluid channels (11) are formed by being jointly surrounded by two adjacent layers of the metal plates (13).

6. The heater according to claim 5, characterized in that, Each layer of the metal plates (13) is provided with a plurality of parallel installation cavities (12).

7. The heater according to claim 6, characterized in that, The metal plate (13) includes a plurality of installation cylinders (131) and a plurality of strip-shaped connecting pieces (132). The installation cylinders (131) and the strip-shaped connecting pieces (132) are arranged alternately, and the two ends of the strip-shaped connecting piece (132) in the short side direction are respectively fixedly connected to the side walls of two adjacent installation cylinders (131). The cavity of the installation cylinder (131) is the installation cavity (12), and the side walls of the installation cylinders (131) of two adjacent layers are abutted and fixedly connected.

8. The heater according to claim 7, characterized in that, The strip-shaped connecting piece (132) and two adjacent installation cylinders (131) jointly enclose a first groove (133) and a second groove (134) with opposite openings. The first grooves (133) and the second grooves (134) of two adjacent layers of the metal plates (13) jointly enclose the fluid channels (11).

9. A heating device, characterized in that, It includes the heater according to any one of claims 1-8.

10. The heating device according to claim 9, characterized in that, The heating device is any one of an electric water heater, a steam oven, and a water dispenser.

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