High-pressure liquid electric heater for automobiles

Abstract

The utility model discloses a high pressure liquid electric heater for car, including casing and with the low pressure wire harness and high pressure wire harness of casing connection, be equipped with PTC heating assembly in the casing, the both sides of PTC heating assembly are equipped with water tank, the top of PTC heating assembly is equipped with the busbar, the low pressure wire harness includes low pressure connector, the low pressure connector is connected with the wire one, the other end of wire one is connected with the sealing plug one, be equipped with the temperature controller with water tank on the sealing plug one, and be equipped with the pressure block one on sealing plug one. Through canceling PCB box, the interval of busbar and water tank, the busbar is directly assembled in lower shell, and there are two support points on the two sides of lower shell, and a support rib is designed in the middle, the PCB box is cancelled, the cost is reduced, and assembly is facilitated, and through design water tank has N water channel, and assembly N-2 PTC heating assembly, improve the problem that the power is not good caused by the too large tolerance of the assembly structure of multiple water channels.

Description

Technical Field

[0001] This utility model relates to the field of electric heater technology, and more specifically, to a high-pressure liquid electric heater for automobiles. Background Technology

[0002] Electric vehicles primarily use electric heating for warmth, and currently, the main method is to heat the air inside the car by heating liquids to achieve temperature regulation. Liquid heating is mainly achieved through heating plates.

[0003] The existing assembly method of high-pressure liquid electric heaters involves mounting them in a PCB box via a PCB busbar. The PCB box serves as insulation and support. This structure increases production costs and makes installation more complicated. Furthermore, the existing water tank has N water channels and N-1 PTC heating elements, which leads to power defects due to excessive tolerances.

[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 high-pressure liquid electric heater for automobiles 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 high-pressure liquid electric heater for automobiles includes a housing and a low-voltage wiring harness and a high-voltage wiring harness connected to the housing;

[0008] The housing contains a PTC heating element, water tanks are located on both sides of the PTC heating element, and a manifold is located on the top of the PTC heating element.

[0009] The low-voltage wiring harness includes a low-voltage connector, a wire is connected to the low-voltage connector, the other end of the wire is connected to a sealing plug, the sealing plug is provided with a thermostat connected to the water tank, and the sealing plug is provided with a pressure block.

[0010] Preferably, the high-voltage wiring harness includes a high-voltage connector, which is connected to a second wire. The other end of the second wire is provided with a second sealing plug. The second sealing plug is provided with a terminal that is connected to the busbar, and the second sealing plug is provided with a second pressure block.

[0011] Preferably, the PTC heating element includes an aluminum tube, an insulating paper is provided inside the aluminum tube, an electrode plate is provided inside the insulating paper, and PTC elements are provided on both sides of the electrode plate.

[0012] Preferably, the water tank includes an inlet side water chamber and an outlet side water chamber. One side of the inlet side water chamber is provided with an inlet side main board connected to the PTC heating element, and the front side of the inlet side water chamber is provided with an inlet.

[0013] Preferably, one side of the water outlet chamber is provided with a main board connected to the PTC heating element, and the other side of the water outlet chamber is provided with a water outlet.

[0014] Preferably, a harmonica tube is provided between the inlet water chamber and the outlet water chamber, and a platform for installing the thermostat is provided on the top of the outlet water chamber.

[0015] Preferably, the harmonica tube has multiple cavities, and the PTC heating element is located between two sets of the harmonica tubes.

[0016] Preferably, the housing includes an upper shell and a lower shell, a sealing ring is provided between the upper shell and the lower shell, support points for supporting the busbar are provided on both sides of the lower shell, and a vertically arranged support rib is provided in the middle.

[0017] The beneficial effects of this utility model are as follows: by eliminating the PCB box and the distance between the busbar and the water tank, the busbar is directly assembled in the lower shell. There are two support points on each side of the lower shell and a support rib is designed in the middle. Eliminating the PCB box reduces costs and facilitates assembly. Furthermore, by designing the water tank to have N water channels and assembling N-2 PTC heating components, the problem of poor power caused by excessive tolerance in the multi-water channel assembly structure is improved. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the structure of a high-pressure liquid electric heater for automobiles according to an embodiment of the present utility model;

[0020] Figure 2 This is an exploded view of a high-pressure liquid electric heater for automobiles according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the low-voltage wiring harness in a high-voltage liquid electric heater for automobiles according to an embodiment of the present utility model;

[0022] Figure 4This is a schematic diagram of the high-voltage wiring harness in a high-voltage liquid electric heater for automobiles according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure of a PTC heating element in a high-pressure liquid electric heater for automobiles according to an embodiment of the present invention;

[0024] Figure 6 This is an exploded view of a PTC heating element in a high-pressure liquid electric heater for automobiles according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the water tank in a high-pressure liquid electric heater for automobiles according to an embodiment of the present utility model;

[0026] Figure 8 This is a top view of the water tank in a high-pressure liquid electric heater for automobiles according to an embodiment of the present utility model;

[0027] Figure 9 This is a cross-sectional view of the harmonica tube in a high-pressure liquid electric heater for automobiles according to an embodiment of the present utility model;

[0028] Figure 10 This is a schematic diagram of the interior of the housing of a high-pressure liquid electric heater for automobiles according to an embodiment of the present invention.

[0029] In the picture:

[0030] 1. Housing; 2. Low-voltage wiring harness; 3. High-voltage wiring harness; 4. PTC heating element; 5. Water tank; 6. Busbar; 7. Low-voltage connector; 8. Wire 1; 9. Sealing plug 1; 10. Thermostat; 11. Pressure block 1; 12. High-voltage connector; 13. Wire 2; 14. Sealing plug 2; 15. Terminal; 16. Pressure block 2; 17. Aluminum tube; 18. Insulating paper; 19. Electrode plate; 20. PTC element; 22. Inlet water chamber; 23. Outlet water chamber; 24. Inlet main board; 25. Inlet; 26. Outlet main board; 27. Outlet; 28. Harmonica tube; 29. ​​Placement platform; 30. Sealing ring; 31. Support point; 32. Support rib. Detailed Implementation

[0031] 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.

[0032] According to an embodiment of the present invention, a high-pressure liquid electric heater for automobiles is provided.

[0033] Example 1:

[0034] like Figure 1-10 As shown, the high-pressure liquid electric heater for automobiles according to an embodiment of the present invention includes a housing 1 and a low-voltage wiring harness 2 and a high-voltage wiring harness 3 connected to the housing 1;

[0035] The housing 1 is equipped with a PTC heating element 4, water tanks 5 are provided on both sides of the PTC heating element 4, and a manifold 6 is provided on the top of the PTC heating element 4.

[0036] The low-voltage wiring harness 2 includes a low-voltage connector 7, on which a wire 8 is connected. The other end of the wire 8 is connected to a sealing plug 9. The sealing plug 9 is provided with a thermostat 10 connected to the water tank 5, and a pressure block 11 is provided on the sealing plug 9.

[0037] Example 2:

[0038] like Figure 1-10 As shown, the high-voltage wiring harness 3 includes a high-voltage connector 12, which is connected to a second wire 13. The other end of the second wire 13 is provided with a second sealing plug 14. The second sealing plug 14 is provided with a terminal 15 connected to the busbar 6, and the second sealing plug 14 is provided with a pressure block 16. The PTC heating element 4 includes an aluminum tube 17, which is provided with insulating paper 18. The insulating paper 18 is provided with an electrode plate 19, and PTC elements 20 are provided on both sides of the electrode plate 19.

[0039] Example 3:

[0040] like Figure 1-10 As shown, the water tank 5 includes an inlet water chamber 22 and an outlet water chamber 23. One side of the inlet water chamber 22 is provided with an inlet main board 24 connected to the PTC heating element 4. The front side of the inlet water chamber 22 is provided with an inlet 25. One side of the outlet water chamber 23 is provided with an outlet main board 26 connected to the PTC heating element 4. The other side of the outlet water chamber 23 is provided with an outlet 27. A harmonica tube 28 is provided between the inlet water chamber 22 and the outlet water chamber 23. The top of the outlet water chamber 23 is provided with a placement platform 29 for installing the thermostat 10. The harmonica tube 28 has multiple cavities. The PTC heating element 4 is located between two sets of harmonica tubes 28.

[0041] Example 4:

[0042] like Figure 1-10As shown, the housing 1 includes an upper shell and a lower shell. A sealing ring 30 is provided between the upper shell and the lower shell. Support points 31 for supporting the busbar 6 are provided on both sides of the lower shell, and a vertically arranged support rib 32 is provided in the middle.

[0043] In summary, by utilizing the above-mentioned technical solution of this utility model, the PCB box is eliminated, the distance between the busbar 6 and the water tank 5 is reduced, and the busbar 6 is directly assembled into the lower shell. There are two support points 31 on each side of the lower shell, and a support rib 32 is designed in the middle. The PCB box is eliminated, the cost is reduced, and the assembly is facilitated. Furthermore, by designing the water tank 5 to have N water channels and assembling N-2 PTC heating components 4, the problem of poor power caused by excessive tolerance in the multi-water channel assembly structure is improved.

[0044] 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 high-pressure liquid electric heater for automobiles, characterized in that, It includes a housing (1) and a low-voltage wiring harness (2) and a high-voltage wiring harness (3) connected to the housing (1); The housing (1) is provided with a PTC heating element (4), and water tanks (5) are provided on both sides of the PTC heating element (4). A manifold (6) is provided on the top of the PTC heating element (4). The low-voltage wiring harness (2) includes a low-voltage connector (7), a wire (8) is connected to the low-voltage connector (7), the other end of the wire (8) is connected to a sealing plug (9), the sealing plug (9) is provided with a thermostat (10) connected to the water tank (5), and the sealing plug (9) is provided with a pressure block (11).

2. The high-pressure liquid electric heater for automobiles according to claim 1, characterized in that, The high-voltage harness (3) includes a high-voltage connector (12), which is connected to a second conductor (13). The other end of the second conductor (13) is provided with a second sealing plug (14). The second sealing plug (14) is provided with a terminal (15) connected to the busbar (6), and the second sealing plug (14) is provided with a pressure block (16).

3. A high-pressure liquid electric heater for automobiles according to claim 2, characterized in that, The PTC heating component (4) includes an aluminum tube (17), an insulating paper (18) is provided inside the aluminum tube (17), an electrode plate (19) is provided inside the insulating paper (18), and PTC elements (20) are provided on both sides of the electrode plate (19).

4. A high-pressure liquid electric heater for automobiles according to claim 3, characterized in that, The water tank (5) includes an inlet side water chamber (22) and an outlet side water chamber (23). The inlet side water chamber (22) has an inlet side main board (24) connected to the PTC heating element (4) on one side, and an inlet (25) is provided on the front side of the inlet side water chamber (22).

5. A high-pressure liquid electric heater for automobiles according to claim 4, characterized in that, One side of the water outlet chamber (23) is provided with a water outlet main board (26) connected to the PTC heating element (4), and the other side of the water outlet chamber (23) is provided with a water outlet (27).

6. A high-pressure liquid electric heater for automobiles according to claim 5, characterized in that, A harmonica tube (28) is provided between the water inlet chamber (22) and the water outlet chamber (23), and a platform (29) for installing the thermostat (10) is provided on the top of the water outlet chamber (23).

7. A high-pressure liquid electric heater for automobiles according to claim 6, characterized in that, The harmonica tube (28) has multiple cavities, and the PTC heating element (4) is located between the two sets of harmonica tubes (28).

8. A high-pressure liquid electric heater for automobiles according to claim 7, characterized in that, The housing (1) includes an upper shell and a lower shell. A sealing ring (30) is provided between the upper shell and the lower shell. Support points (31) for supporting the busbar (6) are provided on both sides of the lower shell, and a vertically arranged support rib (32) is provided in the middle.

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