PTC water heater for new energy vehicle

Abstract

The utility model discloses a new energy vehicle PTC water heater which comprises an aluminum water channel piece and an aluminum water tank, the aluminum water tank is located at the bottom of the aluminum water channel piece, the top of the aluminum water channel piece is provided with a PTC bin sealing cover, and one side of the aluminum water channel piece and one side of the aluminum water tank are provided with a controller bin. A controller bin is arranged in the aluminum water channel piece, a high-voltage socket and a low-voltage socket are arranged on the controller bin, a controller is arranged in the controller bin, a plastic insulating piece is arranged on one side of the controller, a PTC heating body is arranged in the aluminum water channel piece, and a confluence piece is arranged on the top of the PTC heating body. The PTC cabin and the controller cabin are of an integrated aluminum piece structure, so that the integration level is greatly improved, the number of parts and assembly procedures are reduced, and meanwhile, the heat dissipation performance of the IGBT of the controller cabin can be improved; due to the arrangement of the PTC connecting copper bars, the number of parts and assembly procedures are reduced; and the PTC connecting copper bar passes through the wire passing hole and can be directly connected with the controller, so that the assembling convenience and reliability are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to PTC water heater technical field for vehicle, concretely related to a new energy vehicle PTC water heater. BACKGROUND

[0002] With the impetus of national double "carbon" policy, new energy vehicles develop rapidly, and the demand for PTC water heaters in automobile thermal management is increasing. Most of the PTC water heaters on the market have plastic shells, low structural strength, low protection level and short service life. The PTC water channel aluminum shell of some aluminum shell PTC water heaters and the controller bin are mostly split structure, which need to be connected by fasteners and sealed with glue, and the structure is complex, the assembly process is more, the sealing performance is poor, and the controller bin IGBT has poor heat dissipation. The PTC heating body adopts a single PI insulation layer, which has no compressibility and is easy to break. The PTC and the controller are mostly connected by wires, which has low reliability.

[0003] For the problems in the related art, no effective solution has been proposed so far. UTILITY MODEL CONTENTS

[0004] In view of the problems in the related art, the utility model provides a new energy vehicle PTC water heater to overcome the above technical problems existing in the prior art.

[0005] Therefore, the utility model adopts the following specific technical solutions:

[0006] A new energy vehicle PTC water heater, comprising an aluminum water channel and an aluminum water tank, the aluminum water tank is located at the bottom of the aluminum water channel, the top of the aluminum water channel is provided with a PTC bin sealing cover, one side of the aluminum water channel and the aluminum water tank is provided with a controller bin, the controller bin is respectively provided with a high-voltage socket and a low-voltage socket, the controller bin is internally provided with a controller, one side of the controller is provided with a plastic insulating part, the aluminum water channel is internally provided with a PTC heating body, and the top of the PTC heating body is provided with a current collecting part.

[0007] Preferably, a plurality of U-shaped grooves matched with the PTC heating body are formed in the inside of the aluminum water channel, and a sealing groove one matched with the PTC bin sealing cover is formed in the inner top of the aluminum water channel.

[0008] Preferably, a wire hole communicating with the controller bin is formed in one side of the aluminum water channel, and a sealing cover matched with the controller bin is arranged on one side of the controller bin.

[0009] Preferably, a sealing groove two matched with the sealing cover is formed in one side of the controller bin, and a plug-in seat for mounting the high-voltage socket and the low-voltage socket is formed on the controller bin.

[0010] As preferred, the current collector comprises a plastic body, the plastic body is provided with NTC card slots at the side corners away from the controller bin, and the top of the plastic body and between the two groups of NTC card slots is provided with an NTC wire harness card slot.

[0011] As preferred, the plastic body is provided with a PTC connecting copper bar extending through the wire hole to the controller in the controller bin and electrically connected with the controller.

[0012] As preferred, the PTC heating body is in a U-shaped structure, and the PTC heating body comprises a PTC element, a metal electrode sheet, a silica gel PI composite insulating sheet and a U-shaped aluminum piece, the outside of the PTC element is provided with the metal electrode sheet, the outside of the metal electrode sheet is provided with the silica gel PI composite insulating sheet, and the outside of the silica gel PI composite insulating sheet is wrapped with the U-shaped aluminum piece.

[0013] As preferred, the aluminum waterway piece is respectively provided with a water inlet and a water outlet, and temperature sensors are symmetrically arranged on the water inlet and the water outlet.

[0014] The PTC bin and the controller bin are integrated with the aluminum piece structure, which greatly improves the integration, reduces the number of parts and assembly processes, and can improve the heat dissipation performance of the controller bin IGBT.

[0015] The PTC connecting copper bar reduces the number of parts and assembly processes; the PTC connecting copper bar can be directly connected with the controller through the wire hole, which greatly improves the convenience and reliability of the conversion and assembly;

[0016] The U-shaped aluminum piece is tightly matched with the U-shaped groove, solving the problem that part of the U-shaped grooves cannot be tightly matched under the condition of size tolerance; the silica gel PI composite insulating sheet PI polyimide has high mechanical strength and insulation, ensuring the insulation safety of high-voltage components.

[0017] The U-shaped structure of the U-shaped aluminum piece directly protects the silica gel PI composite insulating sheet insulating material inside, solving the problem of damage of the silica gel PI composite insulating sheet during assembly.

[0018] Two temperature sensors NTC are symmetrically arranged at the inlet and outlet of the aluminum waterway piece, so as to realize the use mode without difference between the inlet and outlet, and the inlet and outlet assembly interchange mode on the vehicle does not affect temperature acquisition and control. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0020] Figure 1 is a structural schematic view of a PTC water heater for a new energy vehicle according to an embodiment of the present application;

[0021] Figure 2 is an exploded view of a PTC water heater for a new energy vehicle according to an embodiment of the present application;

[0022] Figure 3 is a top view of an aluminum water channel piece in a PTC water heater for a new energy vehicle according to an embodiment of the present application;

[0023] Figure 4 is a bottom view of an aluminum water channel piece in a PTC water heater for a new energy vehicle according to an embodiment of the present application;

[0024] Figure 5 is a structural schematic view of a current collecting piece in a PTC water heater for a new energy vehicle according to an embodiment of the present application;

[0025] Figure 6 is a side view of a current collecting piece in a PTC water heater for a new energy vehicle according to an embodiment of the present application;

[0026] Figure 7 is a side view of a PTC connecting copper bar in a PTC water heater for a new energy vehicle according to an embodiment of the present application;

[0027] Figure 8 is a sectional view of a PTC heating body in a PTC water heater for a new energy vehicle according to an embodiment of the present application;

[0028] Figure 9 is a bottom view of a temperature sensor in a PTC water heater for a new energy vehicle according to an embodiment of the present application;

[0029] Figure 10 is a top view of a temperature sensor in a PTC water heater for a new energy vehicle according to an embodiment of the present application.

[0030] In the drawings:

[0031] 1, aluminum water channel; 2, aluminum water tank; 3, PTC bin sealing cover; 4, controller bin; 5, high-voltage socket; 6, low-voltage socket; 7, controller; 8, plastic insulating part; 9, PTC heating body; 10, busbar; 11, U-shaped groove; 12, sealing groove I; 13, wire hole; 14, sealing cover; 15, sealing groove II; 16, plug-in seat; 17, plastic body; 18, NTC card slot; 19, NTC wire harness card slot; 20, PTC connecting copper bar; 21, PTC element; 22, metal electrode sheet; 23, silica gel PI composite insulating sheet; 24, U-shaped aluminum part; 25, temperature sensor. DETAILED DESCRIPTION

[0032] To further illustrate the embodiments, the utility model provides drawings, these drawings are part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate with the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0033] According to the embodiment of the utility model, a PTC water heater for new energy vehicles is provided.

[0034] Embodiment one;

[0035] As Figures 1-10 shown, according to the PTC water heater for new energy vehicles of the utility model embodiment, including aluminum water channel 1 and aluminum water tank 2, the aluminum water tank 2 is located at the bottom of the aluminum water channel 1, the top of the aluminum water channel 1 is equipped with PTC bin sealing cover 3, one side of the aluminum water channel 1 and the aluminum water tank 2 is equipped with controller bin 4, the controller bin 4 is respectively equipped with high-voltage socket 5 and low-voltage socket 6, the controller bin 4 is equipped with controller 7 inside, one side of the controller 7 is equipped with plastic insulating part 8, the aluminum water channel 1 is equipped with PTC heating body 9, the top of the PTC heating body 9 is equipped with busbar 10.

[0036] Embodiment two;

[0037] As Figures 1-10As shown, the aluminum waterway piece 1 is internally provided with a plurality of U-shaped grooves 11 matched with the PTC heating body 9, and the inner top of the aluminum waterway piece 1 is provided with a sealing groove one 12 matched with the PTC bin sealing cover 3, one side of the aluminum waterway piece 1 is provided with a wire hole 13 communicated with the controller bin 4, one side of the controller bin 4 is provided with a sealing cover 14 matched therewith, one side in the controller bin 4 is provided with a sealing groove two 15 matched with the sealing cover 14, and the controller bin 4 is provided with a plug-in seat 16 for mounting the high-voltage socket 5 and the low-voltage socket 6.

[0038] Embodiment three;

[0039] As Figures 1-10 shown, the busbar 10 includes a plastic body 17, the plastic body 17 is provided with an NTC card slot 18 at a side edge corner away from the controller bin 4, the top of the plastic body 17 and between the two groups of NTC card slots 18 is provided with an NTC wire harness card slot 19, the plastic body 17 is provided with a PTC connecting copper bar 20 extending through the wire hole 13 to the controller bin 4 and electrically connected with the controller 7, the PTC heating body 9 is in U-shaped structure, and the PTC heating body 9 includes a PTC element 21, a metal electrode sheet 22, a silica gel PI composite insulating sheet 23 and a U-shaped aluminum piece 24, the outside of the PTC element 21 is provided with the metal electrode sheet 22, the outside of the metal electrode sheet 22 is provided with the silica gel PI composite insulating sheet 23, and the outside of the silica gel PI composite insulating sheet 23 is wrapped with the U-shaped aluminum piece 24, the aluminum waterway piece 1 is respectively provided with a water inlet and a water outlet, and the water inlet and the water outlet are symmetrically provided with temperature sensors 25.

[0040] According to the above technical scheme, the PTC bin and the controller bin are integrated with the aluminum piece structure, the integration degree is greatly improved, the number of parts and the assembly process are reduced, and the heat dissipation performance of the controller bin IGBT is improved;

[0041] The PTC connecting copper bar 20 reduces the number of parts and the assembly process; the PTC connecting copper bar 20 directly connects with the controller 7 by penetrating through the wire hole 13, and the conversion and assembly convenience and reliability are greatly improved;

[0042] The U-shaped aluminum piece 24 is tightly matched with the U-shaped groove 11, solving the problem that part cannot be tightly matched under the condition that a plurality of U-shaped grooves 11 have dimensional tolerances; the silica gel PI composite insulating sheet 23 has high mechanical strength and insulation, ensuring the insulation safety of high-voltage components;

[0043] The U-shaped structure of the U-shaped aluminum piece 24 directly protects the silica gel PI composite insulating sheet 23 inside, and solves the problem of damage of the silica gel PI composite insulating sheet 23 in the assembling process;

[0044] Two temperature sensors NTC are symmetrically arranged at the water pipe inlet and outlet of the aluminum water pipe piece 1, so that the inlet and outlet are used in a non-discriminatory manner, and the interchangeability of the inlet and outlet assembly on the vehicle does not affect temperature acquisition and control.

[0045] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A PTC water heater for a new energy vehicle, characterized in that, The utility model provides a kind of aluminum waterway piece (1) and aluminum water tank (2), the aluminum water tank (2) is located the bottom of the aluminum waterway piece (1), the top of the aluminum waterway piece (1) is equipped with PTC bin sealing cover (3), the aluminum waterway piece (1) and the side of the aluminum water tank (2) are equipped with controller bin (4), high voltage socket (5) and low voltage socket (6) are respectively equipped on the controller bin (4), controller (7) is equipped in the controller bin (4), the side of the controller (7) is equipped with plastic insulating piece (8), PTC heating element (9) is equipped in the aluminum waterway piece (1), the top of the PTC heating element (9) is equipped with bus piece (10).

2. The PTC water heater for a new energy vehicle according to claim 1, characterized in that, The inside of the aluminum waterway piece (1) is provided with a plurality of U-shaped grooves (11) matched with the PTC heating element (9), and a sealing groove I (12) matched with the PTC bin sealing cover (3) is formed in the inner top of the aluminum waterway piece (1).

3. The PTC water heater for a new energy vehicle according to claim 2, characterized in that, A wire hole (13) is formed in one side of the aluminum waterway piece (1) in communication with the controller bin (4), and a sealing cover (14) matched with the controller bin (4) is arranged on one side of the controller bin (4).

4. The PTC water heater for a new energy vehicle according to claim 3, characterized in that, A sealing groove II (15) matched with the sealing cover (14) is formed on one side in the controller bin (4), and a plug seat (16) for mounting the high voltage socket (5) and the low voltage socket (6) is formed on the controller bin (4).

5. The PTC water heater for a new energy vehicle according to claim 4, characterized in that, The bus piece (10) includes a plastic body (17), an NTC slot (18) is formed at the side edge corner of the plastic body (17) away from the controller bin (4), and an NTC wire harness slot (19) is formed on the top of the plastic body (17) between the two groups of NTC slots (18).

6. The PTC water heater for a new energy vehicle according to claim 5, characterized in that, A PTC connecting copper bar (20) is arranged on the plastic body (17) and extends to the controller (7) in the controller bin (4) through the wire hole (13) and is electrically connected to the controller (7).

7. The PTC water heater for a new energy vehicle according to claim 1, characterized in that, The PTC heating element (9) has a U-shaped structure, and includes a PTC element (21), a metal electrode sheet (22), a silica gel PI composite insulating sheet (23) and a U-shaped aluminum piece (24), the metal electrode sheet (22) is arranged on the outside of the PTC element (21), the silica gel PI composite insulating sheet (23) is arranged on the outside of the metal electrode sheet (22), and the U-shaped aluminum piece (24) is wrapped on the outside of the silica gel PI composite insulating sheet (23).

8. The PTC water heater for a new energy vehicle according to claim 1, characterized in that, An inlet and an outlet are respectively arranged on the aluminum waterway piece (1), and temperature sensors (25) are symmetrically arranged on the inlet and the outlet.

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