Fan heat dissipation maintenance system on new energy electric vehicle

Abstract

The utility model discloses a fan heat dissipation maintenance system on a new energy electric vehicle, and belongs to the technical field of new energy electric vehicle maintenance devices. The cooling device comprises a cooling fan arranged on a vehicle body. A fan positive electrode interface, a fan negative electrode interface, a feedback interface and a PWM input interface are arranged on the cooling fan through leads; the fan cathode interface and the feedback interface are respectively connected to the anode and cathode of a built-in power supply in the vehicle body; the feedback interface and the PWM input interface are connected to a terminal controller in the vehicle body; an external input interface is also arranged at the PWM input interface through a deconcentrator; the external input interface is connected with a PWM (Pulse Width Modulation) regulator; the PWM regulator is powered by an external power supply; a display screen and a coding potentiometer are arranged on the PWM regulator in an integrated mode, and the coding potentiometer can regulate the frequency and the duty ratio of PWM output. According to the utility model, the problem that the fan cannot be started for inspection due to the fact that working conditions cannot meet use requirements during maintenance can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy electric car maintenance device technical field, concretely relates to a new energy electric car fan heat dissipation overhauling system. BACKGROUND

[0002] In recent years, with the new energy automobile in the national vigorous support science and technology upgrading, the product is more advanced intelligent, and the electric control heat dissipation technology is also the current research trend, because the heat dissipation fan is started according to the temperature condition of the controller when working, and the speed of the fan is controlled. Thus, the temperature cannot reach the starting condition during maintenance and detection, and the fan cannot be judged. The maintenance difficulty is greatly increased. In addition, the fan installation and other problems on the assembled vehicle increase the maintenance difficulty. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem that: provide a new energy electric car fan heat dissipation overhauling system, to through frock software, simulate the actual working condition of the vehicle, detect the good and bad of the fan, avoid the problem that the fan cannot be started for checking when maintaining because the working condition cannot reach the use requirement condition.

[0004] To solve the above problems, the utility model provides the following technical scheme:

[0005] A new energy electric car fan heat dissipation overhauling system, it includes the heat dissipation fan arranged on the vehicle body, the fan positive electrode interface, the fan negative electrode interface, the feedback interface and the PWM input interface are arranged on the heat dissipation fan through the lead, the fan negative electrode interface and the feedback interface are connected to the positive and negative poles of the built-in power supply in the vehicle body, the feedback interface and the PWM input interface are connected to the terminal controller in the vehicle body, the external input interface is further arranged at the PWM input interface through the line splitter, the PWM regulator is connected at the external input interface, the PWM regulator is powered by the external power supply, the display screen and the code potentiometer are integrally arranged on the PWM regulator, and the code potentiometer can adjust the frequency and duty ratio of PWM output.

[0006] The regulator positive electrode interface, the regulator negative electrode interface, the ground interface and the PWM output interface are arranged on the PWM regulator, wherein the regulator positive electrode interface, the regulator negative electrode interface and the ground interface are connected to the external power supply, and the PWM output interface is detachably connected with the PWM input interface on the heat dissipation fan through the cable.

[0007] The overhauling slot for placing the external input interface is arranged on the vehicle body, and the protective cover plate is further arranged on the overhauling slot.

[0008] The display screen is an LCD liquid crystal display screen capable of displaying the frequency and duty ratio of the current output of the PWM regulator.

[0009] The code potentiometer has a locking function.

[0010] Preferably,

[0011] The utility model has the beneficial effects in the following aspects:

[0012] 1、 it provides the external analog duty ratio signal to the heat dissipation fan through the external PWM regulator, thereby controlling the fan switch and fast and slow;

[0013] 2、 avoid the opening condition of the conventional heat dissipation fan to be controlled by temperature, cannot control the opening state condition, uses analog signal to be able to effectively control the action of fan, and further detects the good and bad of fan;

[0014] 3、 through the external input interface, avoid maintenance in the narrow fan assembly position, thereby reduce the maintenance difficulty;

[0015] 4、 avoid the occasional work of fan due to the disassembly of maintenance personnel, reduce the security risk. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model in the embodiment;

[0017] Mark explanation: 1, heat dissipation fan, 2, terminal controller, 3, PWM regulator, 4, display screen, 5, code potentiometer, 11, fan positive interface, 12, fan negative interface, 13, feedback interface, 14, PWM input interface, 15, external input interface, 31, regulator positive interface, 32, regulator negative interface, 33, ground interface, 34, PWM output interface. DETAILED DESCRIPTION

[0018] The utility model is further introduced in combination with the drawings and specific embodiments:

[0019] Embodiment:

[0020] Reference Figure 1 , the embodiment provides a kind of fan heat dissipation overhauling system on new energy electric car;It includes the heat dissipation fan 1 being arranged on vehicle body;Fan positive interface 11, fan negative interface 12, feedback interface 13 and PWM input interface 14 are provided with on heat dissipation fan 1 by lead line;Fan negative interface 12, feedback interface 13 are connected to the positive and negative poles of built-in power supply in vehicle body respectively;Feedback interface 13 and PWM input interface 14 are all connected to terminal controller 2 in vehicle body;External input interface 15 is also provided with at PWM input interface 14 by line splitter;PWM regulator 3 is connected at external input interface 15;PWM regulator 3 is powered by external power supply;Display screen 4 and code potentiometer 5 are integrally provided on PWM regulator 3, and the code potentiometer 5 can adjust the frequency and duty ratio of PWM output.

[0021] The PWM regulator 3 is provided with a regulator positive electrode interface 31, a regulator negative electrode interface 32, a ground interface 33 and a PWM output interface 34; the regulator positive electrode interface 31, the regulator negative electrode interface 32 and the ground interface 33 are all connected to an external power supply; the PWM output interface 34 is detachably connected to the PWM input interface 14 of the cooling fan 1 through a cable.

[0022] The vehicle body is provided with a maintenance card slot for placing the external input interface 15, and a protective cover plate is further arranged on the maintenance card slot.

[0023] The display screen 4 is an LCD liquid crystal display screen capable of displaying the frequency and duty cycle of the current output of the PWM regulator 3.

[0024] The coding potentiometer 5 is provided with a locking function. The coding potentiometer to be locked can prevent misoperation.

[0025] When the device of the embodiment is used, the maintenance personnel only need to connect the PWM regulator to the external power supply and the cooling fan according to the figure, and then control the frequency and duty cycle of the output to the cooling fan through the coding potentiometer, so that the fan can rotate according to the maintenance requirement, thereby improving the maintenance effect of the device.

Claims

1. A cooling and maintenance system for a fan on a new energy electric vehicle, comprising a cooling fan (1) mounted on the vehicle body; the cooling fan (1) is provided with a positive terminal interface (11), a negative terminal interface (12), a feedback interface (13), and a PWM input interface (14) via leads; characterized in that: The negative terminal of the fan (12) and the feedback terminal (13) are respectively connected to the positive and negative terminals of the built-in power supply in the vehicle body; the feedback terminal (13) and the PWM input terminal (14) are both connected to the terminal controller (2) in the vehicle body; an external input terminal (15) is also provided at the PWM input terminal (14) through a splitter; a PWM regulator (3) is connected at the external input terminal (15); the PWM regulator (3) is powered by an external power supply; a display screen (4) and an encoding potentiometer (5) are integrated on the PWM regulator (3), and the encoding potentiometer (5) can adjust the frequency and duty cycle of the PWM output.

2. The fan cooling and maintenance system for a new energy electric vehicle according to claim 1, characterized in that: The PWM regulator (3) is provided with a regulator positive interface (31), a regulator negative interface (32), a ground interface (33) and a PWM output interface (34); wherein the regulator positive interface (31), the regulator negative interface (32) and the ground interface (33) are all connected to an external power supply; the PWM output interface (34) is detachably connected to the PWM input interface (14) on the cooling fan (1) via a cable.

3. The fan cooling and maintenance system for a new energy electric vehicle according to claim 1, characterized in that: The vehicle body is provided with a maintenance card slot for placing an external input interface (15), and a protective cover is also provided on the maintenance card slot.

4. The fan cooling and maintenance system for a new energy electric vehicle according to claim 1, characterized in that: The display screen (4) is an LCD screen that can display the current output frequency and duty cycle of the PWM regulator (3).

5. The fan cooling and maintenance system for a new energy electric vehicle according to claim 1, characterized in that: The encoder potentiometer (5) has a locking function.

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