Electric heating assembly and heater

Abstract

The utility model relates to the technical field of electric heaters, in particular to an electric heating assembly and a heater. The electric heating assembly comprises a heating unit, a conductive unit and an insulating unit; the heating unit, the conductive unit and the insulating unit are sequentially arranged in a stacked mode in the thickness direction of the electric heating assembly. The conductive unit is connected with the heating unit; the insulating unit covers one side, deviating from the heating unit, of the conductive unit; each insulating unit comprises an insulating layer and two adhesive layers; the two adhesive layers are respectively coated on the two sides of the insulating layer in the thickness direction; one adhesive layer can be adhered to the conductive unit, and the other adhesive layer can be adhered to the heat transfer runner; the adhesive layer is configured to have thermal conductivity so as to transmit heat generated by the heating unit to the heat transfer runner through the conductive unit and the insulating unit in sequence. Therefore, the connection mode of the insulating layer can be simplified, and heat transfer efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric heater technology, and more specifically, to an electric heating component and a heater. Background Technology

[0002] With Earth's resources dwindling, electric vehicles, as a new energy source, are being vigorously promoted compared to traditional gasoline-powered cars. Consequently, the development of PTC heaters required for electric vehicles is accelerating. Traditional cars use engine coolant as the heat source for their air conditioning heating, while ordinary electric vehicles can only use air-cooled PTC heaters. However, simple air-cooled PTC heating carries certain risks.

[0003] The existing hydrothermal PTC heater works by transferring heat from the PTC module or PTC heating element to the coolant through heat transfer channels. The coolant then flows through the heat exchanger core, carrying the heat to where it is needed.

[0004] However, the electrical insulation layer of existing PTC elements requires other fixing components to be fixedly attached to the heat sink. The insulation layer uses an insulating board and insulating paper to achieve insulation, where the insulating board is a ceramic plate, which is prone to breakage when assembled with the core and is not easy to fill the contact gap, resulting in low heat transfer efficiency. Utility Model Content

[0005] The purpose of this invention includes, for example, providing an electric heating assembly and heater that simplifies the connection method of the insulation layer while improving heat transfer efficiency.

[0006] The embodiments of this utility model can be implemented as follows:

[0007] In a first aspect, this utility model provides an electric heating assembly, comprising:

[0008] Heating unit, conductive unit, and insulating unit;

[0009] Along the thickness direction of the electric heating assembly, the heating unit, the conductive unit, and the insulating unit are stacked sequentially; the conductive unit is connected to the heating unit, and the insulating unit covers the side of the conductive unit opposite to the heating unit;

[0010] The insulating unit includes an insulating layer and two adhesive layers; the two adhesive layers are respectively coated on both sides of the insulating layer in the thickness direction; one of the adhesive layers can be bonded to the conductive unit, and the other adhesive layer can be bonded to the heat transfer channel; the adhesive layer is configured to be thermally conductive so as to transfer the heat generated by the heating unit sequentially through the conductive unit and the insulating unit to the heat transfer channel.

[0011] In an optional embodiment, the adhesive layer is made of a mixture of an organosilicon polymer matrix and a thermally conductive filler.

[0012] In an optional embodiment, the insulating layer is an insulating film.

[0013] In an optional embodiment, the insulating layer is made of polyimide.

[0014] In an optional embodiment, the thickness of each adhesive layer remains consistent along the length of the insulating layer.

[0015] In an optional implementation, the heating unit is a PTC element.

[0016] In an optional embodiment, the heating unit is surrounded by an insulating frame so that the sides of the heating unit form an insulating interface.

[0017] In an optional embodiment, the insulating frame is made of plastic or rubber.

[0018] In an optional embodiment, the adhesive layer is bonded to the conductive unit or the heat transfer channel by high-temperature curing.

[0019] Secondly, the present invention provides a heater, the heater comprising the electric heating component described in any of the foregoing embodiments.

[0020] The beneficial effects of this utility model embodiment include, for example:

[0021] The electric heating assembly of this solution includes a heating unit, a conductive unit, and an insulating unit. These three units are stacked sequentially. The insulating unit comprises an insulating layer and two adhesive layers located on either side of the insulating layer's thickness. These adhesive layers allow one side of the insulating layer to adhere to the conductive unit and the other side to the heat transfer channel. In other words, the insulating layer is coated with thermally conductive adhesive on both sides, providing bonding functionality. This adhesive function of the insulating layer better fills contact gaps and eliminates the need for additional fixing parts, enabling the connection between the insulating unit and the conductive unit, and between the insulating unit and the heat transfer channel, thus simplifying the process. Simultaneously, the adhesive layers shorten the heat conduction path from the heating unit to the heat transfer channel, resulting in higher heat transfer efficiency. In summary, this electric heating assembly offers advantages such as simple structure, easy processing, and higher heat transfer efficiency, thus providing outstanding economic benefits. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the electric heating assembly according to an embodiment of the present utility model;

[0024] Figure 2 This is a partially enlarged schematic diagram of the electric heating assembly according to an embodiment of the present utility model;

[0025] Figure 3 This is another structural schematic diagram of the electric heating assembly according to an embodiment of the present utility model.

[0026] Icons: 10-Electric heating component; 100-Heating unit; 110-Insulating frame; 200-Conductive unit; 300-Insulating unit; 310-Insulating layer; 320-Adhesive layer; 21-Heat transfer channel. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0032] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0033] Please refer to Figure 1 This embodiment provides an electric heating assembly 10, including:

[0034] Heating unit 100, conductive unit 200, and insulating unit 300;

[0035] Along the thickness direction of the electric heating assembly 10, the heating unit 100, the conductive unit 200 and the insulating unit 300 are stacked in sequence; the conductive unit 200 is connected to the heating unit 100, and the insulating unit 300 covers the side of the conductive unit 200 away from the heating unit 100.

[0036] The insulating unit 300 includes an insulating layer 310 and two adhesive layers 320; the two adhesive layers 320 are respectively coated on both sides of the insulating layer 310 in the thickness direction; one adhesive layer 320 can be bonded to the conductive unit 200, and the other adhesive layer 320 can be bonded to the heat transfer channel 21; the adhesive layer 320 is configured to be thermally conductive so as to transfer the heat generated by the heating unit 100 sequentially through the conductive unit 200 and the insulating unit 300 to the heat transfer channel 21.

[0037] The electric heating assembly 10 of this solution includes a heating unit 100, a conductive unit 200, and an insulating unit 300. The heating unit 100, conductive unit 200, and insulating unit 300 are arranged in a sequentially stacked configuration. The insulating unit 300 includes an insulating layer 310 and two adhesive layers 320 located on either side of the insulating layer 310's thickness. These adhesive layers allow one side of the insulating layer 310 to be bonded to the conductive unit 200 and the other side to the heat transfer channel 21, respectively. In other words, the insulating layer 310 is coated with thermally conductive adhesive on both sides, providing an adhesive function. This adhesive function of the insulating layer 310 better fills contact gaps and eliminates the need for additional fixing parts, enabling the connection between the insulating unit 300 and the conductive unit 200, and between the insulating unit 300 and the heat transfer channel 21, simplifying the process flow. Simultaneously, the adhesive layers 320 shorten the heat conduction path from the heating unit 100 to the heat transfer channel 21, resulting in higher heat conduction efficiency.

[0038] Please refer to further information. Figure 1 , Figure 2 and Figure 3 To learn more about the structural details of the electric heating assembly 10.

[0039] Heating unit 100 is a PTC element. A PTC element is a ceramic heating element. This type of heating element has the advantages of low thermal resistance and high heat exchange efficiency, and is an automatic temperature-controlled, energy-saving electric heater.

[0040] In an optional embodiment, the adhesive layer 320 is made of a mixture of an organosilicon polymer matrix and a thermally conductive filler. Optionally, the adhesive layer 320 is bonded to the conductive unit 200 or the heat transfer channel 21 by high-temperature curing. This further ensures the stability of the connection of the electric heating assembly 10.

[0041] When in use, the adhesive is in a semi-cured state and has slight tackiness. It can be pre-attached to the conductive unit 200 and the heat transfer channel 21. After pressure is applied, the silicone material deforms and flows, which can fill the air gaps at the contact interface and form a good adhesive interface. Then, a strong adhesive effect is achieved through high-temperature curing.

[0042] In an optional embodiment, the insulating layer 310 is an insulating film. Optionally, the insulating layer 310 is made of polyimide. The film has good insulation properties and good structural strength to ensure the stability of the electric heating assembly 10.

[0043] from Figure 1 and Figure 2 As can be seen, in the optional embodiment, the thickness of each adhesive layer 320 remains consistent along the length of the insulating layer 310. This ensures the tightness of the internal connections of the electric heating assembly 10 and the tightness of the connection between the heating unit 100 and the heat transfer channel 21.

[0044] from Figure 3 It can also be seen that, in an optional embodiment, the heating unit 100 is surrounded by an insulating frame 110, so that the sides of the heating unit 100 form an insulating interface. In an optional embodiment, the insulating frame 110 is made of plastic or rubber. Furthermore, Figure 3 The diagram shows the structure of the heating core, which consists of an electric heating component 10, a heat transfer channel 21, etc.

[0045] from Figure 1 As can also be seen in this embodiment, along the thickness direction of the heating unit 100, one side of the heating unit 100 is bonded to a heat transfer channel 21 via a conductive unit 200 and an insulating unit 300, and the other side of the heating unit 100 is bonded to an adjacent heat transfer channel 21 via another conductive unit 200 and another insulating unit 300. That is, both sides of the heating unit 100 are bonded between two adjacent heat transfer channels 21 via a conductive unit 200 and an insulating unit 300, respectively.

[0046] Secondly, the present invention provides a heater, which includes the electric heating component 10 of any of the foregoing embodiments.

[0047] In summary, the present invention provides an electric heating assembly 10 and a heater, which have at least the following advantages:

[0048] The insulating layer 310 is coated with thermally conductive adhesive on both sides, providing adhesive bonding functionality.

[0049] The insulation unit 300 better fills the contact gap and eliminates the need for additional fixing parts, simplifying the process.

[0050] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An electric heating assembly, characterized in that, include: Heating unit (100), conductive unit (200) and insulating unit (300); Along the thickness direction of the electric heating assembly, the heating unit (100), the conductive unit (200), and the insulating unit (300) are stacked in sequence; the conductive unit (200) is connected to the heating unit (100), and the insulating unit (300) covers the side of the conductive unit (200) away from the heating unit (100); The insulating unit (300) includes an insulating layer (310) and two adhesive layers (320); the two adhesive layers (320) are respectively coated on both sides of the insulating layer (310) in the thickness direction; and one of the adhesive layers (320) can be bonded to the conductive unit (200), and the other adhesive layer (320) can be bonded to the heat transfer channel (21); the adhesive layer (320) is configured to be thermally conductive so as to transfer the heat generated by the heating unit (100) sequentially through the conductive unit (200) and the insulating unit (300) to the heat transfer channel (21).

2. The electric heating assembly according to claim 1, characterized in that: The insulating layer (310) is an insulating film.

3. The electric heating assembly according to claim 2, characterized in that: The insulating layer (310) is made of polyimide.

4. The electric heating assembly according to claim 1, characterized in that: The thickness of each adhesive layer (320) remains consistent along the length of the insulating layer (310).

5. The electric heating assembly according to claim 1, characterized in that: The heating unit (100) is a PTC element.

6. The electric heating assembly according to claim 5, characterized in that: The heating unit (100) is surrounded by an insulating frame (110) so that the sides of the heating unit (100) form an insulating interface.

7. The electric heating assembly according to claim 6, characterized in that: The insulating frame (110) is made of plastic or rubber.

8. The electric heating assembly according to claim 1, characterized in that: The adhesive layer (320) is bonded to the conductive unit (200) or the heat transfer channel (21) by high-temperature curing.

9. A heater, characterized in that: The heater comprises the electric heating assembly according to any one of claims 1-8.

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