Low pressure atc heater

Abstract

This utility model discloses a low-pressure PTC heater, including a shell and a ceramic PTC heating core. The ceramic PTC heating core is located inside the shell, and an electrical control box for control is provided on one side of the shell. The ceramic PTC heating core includes electrode plates and a conductive aluminum tube. A PTC heating element is disposed between the electrode plates and the conductive aluminum tube. An insulating sheet is provided on the conductive aluminum tube, and one end of the conductive aluminum tube is connected to a metal aluminum electrode. The ceramic PTC heating element is disposed between the electrode plates and the conductive aluminum tube, so that the conductive aluminum tube serves as both a structural fixing component and a conductive metal component. The metal aluminum electrode is the negative terminal of the heater's operating power supply, which enables the entire surface of the ceramic PTC heating core to be a low-voltage end, with only a negative charge through the surface of the metal component. The metal plate and the connecting parts are connected by screws or rivets for easy installation.

Description

Technical Field

[0001] This utility model relates to the field of new energy pure electric vehicles, specifically to a low-pressure APTC heater. Background Technology

[0002] In the field of new energy pure electric vehicles, the current pursuit is to improve vehicle driving performance, achieve longer driving range, shorten charging time, and reduce overall vehicle cabling costs. To meet these development needs, according to the power formula P=UI, increasing power P requires increasing the value of voltage U. Increasing voltage U allows for a constant I (electric power), resulting in improved motor driving performance, increased driving range, and faster charging speeds. Increasing voltage is a mainstream development trend for new energy vehicles; currently, the highest voltage platform on the market is 800V, which is matched with 800V PTC heaters.

[0003] In new energy vehicles, most existing heaters are high-voltage APTC type, with an insulated surface, high power, and high energy consumption.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a low-pressure APTC heater to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A low-pressure APTC heater includes a housing and a ceramic PTC heating element. The ceramic PTC heating element is located inside the housing. An electrical control box for control is provided on one side of the housing. The ceramic PTC heating element includes an electrode plate and a metal conductive aluminum tube. A PTC heating element is provided between the electrode plate and the metal conductive aluminum tube. An insulating sheet is provided on the metal conductive aluminum tube, and one end of the metal conductive aluminum tube is connected to a metal aluminum electrode.

[0008] Preferably, the conductive aluminum tube is connected to the aluminum electrode via conductive heat dissipation corrugations.

[0009] Preferably, the aluminum electrode is the negative terminal of the heater's operating power supply, which enables the entire surface of the ceramic PTC heating core to be a low-voltage end.

[0010] Preferably, the aluminum electrode is provided with a connector, and the conductive heat dissipation corrugation is provided with a metal plate connected to the connector.

[0011] Preferably, the metal plate and the connector are fastened together by one of screws or rivets.

[0012] The beneficial effects of this utility model are as follows: a ceramic PTC heating element is set between the electrode sheet and the metal conductive aluminum tube, so that the metal conductive aluminum tube serves as both a structural fixing component and a conductive metal component. The metal aluminum electrode is the negative terminal of the heater's working power supply, which can realize that the entire surface of the ceramic PTC heating core is a low-voltage end, and only the surface of the metal component is negatively charged. The metal plate and the connecting component are connected by screws or rivets, which facilitates installation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a low-pressure APTC heater according to an embodiment of the present utility model;

[0015] Figure 2 This is a cross-sectional view of a low-pressure APTC heater according to an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a ceramic PTC heating core in a low-pressure APTC heater according to an embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the connecting component in a low-pressure APTC heater according to an embodiment of the present invention.

[0018] In the picture:

[0019] 1. Housing; 2. Ceramic PTC heating element; 3. Electrical control box; 4. Electrode plate; 5. Conductive aluminum tube; 6. PTC heating element; 7. Insulating sheet; 8. Aluminum electrode; 9. Conductive heat dissipation corrugated metal part; 10. Connector; 11. Metal plate. Detailed Implementation

[0020] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0021] According to an embodiment of the present invention, a low-pressure APTC heater is provided.

[0022] Example 1;

[0023] like Figure 1-4 As shown, the low-pressure APTC heater according to an embodiment of the present invention includes a housing 1 and a ceramic PTC heating core 2. The ceramic PTC heating core 2 is located inside the housing 1. An electrical control box 3 for control is provided on one side of the housing 1. The ceramic PTC heating core 2 includes an electrode plate 4 and a metal conductive aluminum tube 5. A PTC heating element 6 is provided between the electrode plate 4 and the metal conductive aluminum tube 5. An insulating sheet 7 is provided on the metal conductive aluminum tube 5, and one end of the metal conductive aluminum tube 5 is connected to a metal aluminum electrode 8.

[0024] Example 2;

[0025] like Figure 1-4 As shown, the conductive aluminum tube 5 is connected to the aluminum electrode 8 via the conductive heat dissipation corrugation 9. The aluminum electrode 8 is the negative terminal of the heater's power supply, which enables the entire surface of the ceramic PTC heating core 2 to be a low-voltage end. The aluminum electrode 8 is provided with a connector 10, and the conductive heat dissipation corrugation 9 is provided with a metal plate 11 connected to the connector 10. The metal plate 11 and the connector 10 are fastened together by one of the screws or rivets.

[0026] In summary, with the help of the above-mentioned technical solution of this utility model, a ceramic PTC heating element 6 is set between the electrode plate 4 and the metal conductive aluminum tube 5, so that the metal conductive aluminum tube 5 serves as both a structural fixing component and a conductive metal component. The metal aluminum electrode 8 is the negative terminal of the heater's working power supply, which can realize that the entire surface of the ceramic PTC heating core 2 is a low-voltage end, and the surface of the metal component is only negatively charged. The metal plate 11 and the connector 10 are connected by screws or rivets, which facilitates installation.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-pressure APTC heater, characterized in that, The device includes a housing (1) and a ceramic PTC heating core (2). The ceramic PTC heating core (2) is located inside the housing (1). An electrical control box (3) for control is provided on one side of the housing (1). The ceramic PTC heating core (2) includes an electrode plate (4) and a metal conductive aluminum tube (5). A PTC heating element (6) is provided between the electrode plate (4) and the metal conductive aluminum tube (5). An insulating sheet (7) is provided on the metal conductive aluminum tube (5), and one end of the metal conductive aluminum tube (5) is connected to a metal aluminum electrode (8).

2. The low-pressure APTC heater according to claim 1, characterized in that, The conductive aluminum tube (5) is connected to the aluminum electrode (8) through the conductive heat dissipation corrugation (9).

3. A low-pressure APTC heater according to claim 2, characterized in that, The aluminum electrode (8) is the negative terminal of the heater's operating power supply.

4. A low-pressure APTC heater according to claim 3, characterized in that, The aluminum electrode (8) is provided with a connector (10), and the conductive heat dissipation corrugation (9) is provided with a metal plate (11) connected to the connector (10).

5. A low-pressure APTC heater according to claim 4, characterized in that, The metal plate (11) and the connector (10) are fastened together by screws or rivets.

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