Integrated automobile PTC (Positive Temperature Coefficient) controller

Abstract

The utility model is suitable for the technical field of PTC (Positive Temperature Coefficient) controllers, and provides an integrated automobile PTC controller which is firm in structure, does not need patch cords and saves cost due to the fact that the PTC and the controller are integrated; the controller cover plate and the controller shell are in sealed connection through the controller sealing ring, waterproof reliability is achieved, glue pouring sealing is not needed, working hours are shortened, and cost is reduced; the control power supply voltage of the controller is 9-32V, the voltage range is wide, and the requirements of different customers are met; the output power is 0-10kW, so that the requirements of different customers on the power are met; the control mode is divided into a PWM mode and a CAN mode, and different requirements of customers are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of PTC controllers, and in particular relates to an integrated automobile PTC controller. Background Art

[0002] At present, with the development of new energy electric vehicles, the power range requirements for automotive PTC heaters are becoming increasingly stringent, requiring PTCs with PWM control to adjust the power; at the same time, the waterproof level of PTCs and controllers must meet IP67 requirements. Therefore, it is necessary to design a new type of integrated automotive PTC controller to overcome the above problems. Utility Model Content

[0003] The utility model provides an integrated automobile PTC controller, aiming to solve the problems raised by the background technology.

[0004] The utility model is implemented as follows: an integrated automobile PTC controller comprises a controller housing and a PTC housing;

[0005] The top of the controller housing is provided with a vehicle high-voltage input terminal and a vehicle low-voltage input terminal, the vehicle high-voltage input terminal and the vehicle low-voltage input terminal are relatively spaced and distributed, the outer side of the controller housing is provided with a controller cover plate, the controller cover plate seals the controller housing, a controller sealing ring is provided at the connection between the controller cover plate and the controller housing, the four ribs outside the controller sealing ring are interference fit with the controller housing, and the coil inside the controller housing is interference fit with the controller sealing ring;

[0006] A PTC core is arranged inside the PTC shell, and a sponge is sheathed outside the PTC shell.

[0007] Preferably, a PCBA is provided inside the controller housing, and the PCBA is connected to the PTC core through a wiring harness.

[0008] Preferably, a grounding wire is provided outside the controller housing, and the grounding wire connects the power supply and the controller.

[0009] Preferably, the controller housing and the controller cover are fixedly connected by a plurality of screws, and the controller housing and the PTC housing are fixedly connected by a plurality of screws.

[0010] Preferably, the vehicle high-voltage input terminal and the vehicle low-voltage input terminal are of board-end type and are fixedly connected to the controller housing.

[0011] Preferably, the control power supply voltage of the controller is 9-32V, and the output power is 0-10KW.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The PTC and controller arranged in the utility model are integrated with each other, and the structure is firm, no adapter wire is required, and cost is saved; the PTC and the controller are connected by a sealing ring, which is waterproof and reliable, and no glue sealing is required, which improves working hours and reduces costs; the control power supply voltage of the controller is: 9-32V, with a wide voltage range, which is aimed at different customer requirements; the output power is: 0-10kW, which meets the power requirements of different customers; the control mode is divided into PWM / CAN to meet the different requirements of customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereogram of the overall structure assembly of the utility model;

[0015] Figure 2 It is an exploded view of the overall structure assembly of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the controller in the utility model.

[0017] In the figure:

[0018] 1. High-voltage input terminal of the whole vehicle; 2. Low-voltage input terminal of the whole vehicle; 3. Controller cover; 4. Controller sealing ring; 5. Grounding wire; 6. PCBA; 7. Controller housing; 8. PTC housing; 9. PTC core; 10. Sponge. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0021] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figures 1 to 3 The utility model provides a technical solution: an integrated automobile PTC controller, including a controller shell 7 and a PTC shell 8; a vehicle high-voltage input terminal 1 and a vehicle low-voltage input terminal 2 are arranged on the top of the controller shell 7, and the vehicle high-voltage input terminal 1 and the vehicle low-voltage input terminal 2 are relatively spaced and distributed, a controller cover 3 is arranged on the outer side of the controller shell 7, the controller cover 3 seals the controller shell 7, a controller sealing ring 4 is arranged at the connection between the controller cover 3 and the controller shell 7, four ribs on the outside of the controller sealing ring 4 are interference fit with the controller shell 7, and the coil inside the controller shell 7 is interference fit with the controller sealing ring 4; a PTC core 9 is arranged inside the PTC shell 8, and a sponge 10 is arranged on the outside of the PTC shell 8.

[0025] In this embodiment, the PTC is integrated with the controller, with a firm structure, no adapter cable is required, and cost is saved; the PTC and the controller are connected by a sealing ring, which is waterproof and reliable, and no glue sealing is required, which increases working hours and reduces costs; the control power supply voltage of the controller is: 9-32V, with a wide voltage range, targeting different customer requirements; output power: 0-10kW, meeting the power requirements of different customers; the control mode is divided into PWM / CAN to meet different customer requirements, PTC with PWM control, the voltage application range meets 24V-800V, and the controller sealing ring 4 is set to make the PTC and the controller waterproof level meet IP67 requirements; the four external ribs of the controller sealing ring 4 are interference fit with the controller housing 7 to ensure waterproofness, and the internal wiring harness is interference fit with the controller sealing ring 4 to ensure waterproofness; the controller and the PTC housing 8 are fixed with multiple screws to ensure the firmness between the two and meet vibration requirements.

[0026] Furthermore, a PCBA 6 is provided inside the controller housing 7, and the PCBA 6 is connected to the PTC core 9 via a wiring harness.

[0027] In this embodiment, PCBA6 is a circuit board that achieves the purpose of controlling the controller and the PTC.

[0028] For further information, see Figure 1 A grounding wire 5 is provided outside the controller housing 7, and the grounding wire 5 connects the power supply and the controller.

[0029] In this embodiment, the grounding wire 5 connects the power supply and the controller of the vehicle to transmit power.

[0030] Furthermore, the controller housing 7 and the controller cover 3 are fixedly connected by a plurality of screws, and the controller housing 7 and the PTC housing 8 are fixedly connected by a plurality of screws.

[0031] In this embodiment, the controller housing 7 and the controller cover 3 are fixedly connected by multiple screws to ensure IP67 waterproofing; the controller housing 7 and the PTC housing 8 are fixedly connected by multiple screws to ensure the firmness between the two and meet the vibration requirements.

[0032] Furthermore, the vehicle high-voltage input terminal 1 and the vehicle low-voltage input terminal 2 are of board-end type and are fixedly connected to the controller housing 7 .

[0033] In this embodiment, the vehicle high-voltage input terminal 1 and the vehicle low-voltage input terminal 2 are of board-end type and are directly fixed to the controller to ensure waterproof requirements.

[0034] Furthermore, the control power supply voltage of the controller is 9-32V, and the output power is 0-10KW.

[0035] In this embodiment, the control power supply voltage of the controller is 9-32V, with a wide voltage range to meet different customer requirements; the output power is 0-10kW to meet the power requirements of different customers; the control mode is divided into PWM / CAN to meet different customer requirements.

[0036] The working principle and use process of the utility model are as follows: the PTC is integrated with the controller, with a firm structure, no adapter cable is required, and cost is saved; the PTC and the controller are connected with a sealing ring, which is waterproof and reliable, and no glue sealing is required, which increases working hours and reduces costs; the control power supply voltage of the controller: 9-32V, with a wide voltage range, targeting different customer requirements; output power: 0-10kW, meeting the power requirements of different customers; the control mode is divided into PWM / CAN to meet different customer requirements, PTC with PWM control, the voltage application range meets 24V-800V, and the controller sealing ring 4 is set to make the PTC and the controller waterproof level meet IP67 requirements; the four external ribs of the controller sealing ring 4 are interference fit with the controller housing 7 to ensure waterproofness, and the internal wiring harness is interference fit with the controller sealing ring 4 to ensure waterproofness; the controller and the PTC housing 8 are fixed with multiple screws to ensure the firmness between the two and meet vibration requirements.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated automotive PTC controller, characterized in that: It comprises a controller housing (7) and a PTC housing (8); The top of the controller housing (7) is provided with a vehicle high-voltage input terminal (1) and a vehicle low-voltage input terminal (2), the vehicle high-voltage input terminal (1) and the vehicle low-voltage input terminal (2) are relatively spaced and distributed, the outer side of the controller housing (7) is provided with a controller cover (3), the controller cover (3) seals the controller housing (7), a controller sealing ring (4) is provided at the connection between the controller cover (3) and the controller housing (7), the four ribs on the outside of the controller sealing ring (4) are in interference fit with the controller housing (7), and the internal coil of the controller housing (7) is in interference fit with the controller sealing ring (4); A PTC core (9) is arranged inside the PTC shell (8), and a sponge (10) is arranged outside the PTC shell (8).

2. The integrated automotive PTC controller according to claim 1, characterized in that: A PCBA (6) is arranged inside the controller housing (7), and the PCBA (6) is connected to the PTC core (9) via a wiring harness.

3. The integrated automotive PTC controller according to claim 2, characterized in that: A grounding wire (5) is provided outside the controller housing (7), and the grounding wire (5) connects the power supply and the controller.

4. The integrated automotive PTC controller according to claim 1, characterized in that: The controller housing (7) and the controller cover plate (3) are fixedly connected by a plurality of screws, and the controller housing (7) and the PTC housing (8) are fixedly connected by a plurality of screws.

5. The integrated automotive PTC controller according to claim 1, characterized in that: The vehicle high-voltage input end (1) and the vehicle low-voltage input end (2) are of board-end type and are fixedly connected to the controller housing (7).

6. The integrated automotive PTC controller according to claim 1, characterized in that: The control power supply voltage of the controller is 9-32V, and the output power is 0-10KW.

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