Multi-voltage electric heating equipment suitable for battery car

Abstract

The utility model belongs to the technical field of electrical engineering, and particularly relates to a multi-voltage electric heating device suitable for a battery car, which comprises an input voltage detection circuit, a step-down converter module, an output voltage stabilizing circuit and a USB (universal serial bus) interface which are integrally mounted on a conversion mechanism. And a spring wire is installed on the switching mechanism, the spring wire is electrically connected with an input voltage detection circuit, and a plug is installed at one end of the spring wire. A user can use the power supplies provided by the electric bicycles with different voltage parameters to supply power to a plurality of electric heating devices under the condition of not additionally consuming energy, so that the electric bicycle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical engineering, and in particular relates to an electric heating device with multiple voltages suitable for battery vehicles. Background Art

[0002] As an environmentally friendly and convenient means of transportation, electric bicycles are becoming more and more popular. However, in the cold winter, riding an electric bicycle may be uncomfortable, especially in cold areas. In order to improve the comfort of riding an electric bicycle, people usually install electric heating devices on the seat or other parts of the electric bicycle, such as electric heating gloves, cushions, etc. These electric heating devices can provide heating functions for the seat or other parts to improve the comfort of the rider.

[0003] However, the existing electric heating devices of electric bicycles usually require additional power supply, which brings inconvenience to users. In order to solve this problem, a device is provided that uses the power of the electric bicycle itself to provide a stable power supply for multiple electric heating devices, which can effectively use the power of the electric bicycle to provide a stable power supply for the electric heating devices, thereby improving the riding comfort of the electric bicycle in a cold environment. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide an electric heating device with multiple voltages suitable for electric bicycles, so as to solve the problem that the existing electric heating devices for electric bicycles usually require additional power supply, which brings inconvenience to the riders.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: an electric heating device with multiple voltages suitable for electric battery vehicles, including an input voltage detection circuit, a buck converter module, an output voltage stabilizing circuit, and a USB interface. The input voltage detection circuit, the buck converter module, the output voltage stabilizing circuit, and the USB interface are integrated and installed on a conversion mechanism. A spring wire is installed on the conversion mechanism, and the spring wire is electrically connected to the input voltage detection circuit. A plug is installed at one end of the spring wire.

[0006] The beneficial effect of the utility model is that the user can use the power provided by the electric bicycle with different voltage parameters to power multiple electric heating devices without consuming additional energy, thereby improving the riding comfort of the electric bicycle in a cold environment, and also improving the practicality and comfort of the electric bicycle.

[0007] In order to accurately detect the voltage input to the battery vehicle charging interface through the input voltage detection circuit;

[0008] As a further improvement of the above technical solution: the input voltage detection circuit includes a capacitor component 1, a resistor component and a voltage comparator, the capacitor component 1 is composed of capacitors C1 and C2, the resistor component is composed of resistors R1 and R2, the positive electrode of the voltage comparator is connected to the input voltage signal of the spring wire, and the negative electrode of the voltage comparator is connected to the signal after voltage division by the resistor component.

[0009] The beneficial effects of this improvement are: the non-inverting input terminal of the voltage comparator is connected to the input voltage signal, and the inverting input terminal is connected to the output terminal of the linear regulator module as a reference voltage. The voltage comparator output controls the output voltage of the buck converter module according to the comparison result between the input voltage and the reference voltage. Capacitors C1 and C2 are used to stabilize the voltage signal, and resistors R1 and R2 are used to limit the current to form a voltage divider, thereby accurately detecting the voltage input to the battery vehicle charging interface and selecting a suitable step-down ratio according to the comparison result.

[0010] In order to timely and accurately display the working status of the input voltage detection circuit;

[0011] As a further improvement of the above technical solution: an LED indicator light is provided in the input voltage detection circuit, and the LED indicator light is electrically connected to the voltage comparator.

[0012] The beneficial effect of this improvement is that the output port of the voltage comparator is connected to the LED indicator light for displaying the working status of the input voltage detection circuit.

[0013] In order to achieve output voltage regulation through the buck converter module;

[0014] As a further improvement of the above technical solution: the buck converter module includes an adjustable buck module, an inductor L1, a diode D1 and a capacitor component 2, the capacitor component 2 is composed of capacitors C3 and C4, the input port VIN of the adjustable buck module is connected to the stable voltage signal output by the input voltage detection circuit, the adjustment pin ADJ is adjusted through a resistor divider network, and the output port VOUT is connected to the input port of the output voltage stabilization circuit plug.

[0015] The beneficial effect of this improvement is that when the input voltage meets the requirements, the buck converter module starts to work, and the adjustable buck module controls the frequency of storing and releasing electrical energy of the inductor L1 by adjusting the conduction time of the switch tube, thereby reducing the input voltage to a stable output voltage. In this process, the diode D1 and the capacitor component 2 play the role of storing and smoothing the output voltage.

[0016] To further stabilize the output voltage through the buck converter module;

[0017] As a further improvement of the above technical solution: the output voltage stabilization circuit includes a linear voltage regulator module and a capacitor component three, the capacitor component three is composed of capacitors C5 and C6, the input port VIN of the linear voltage regulator module is connected to the stable voltage signal output by the buck converter module, the adjustment pin ADJ is adjusted through a resistor divider network, and the output port VOUT is connected to the input port of the USB interface.

[0018] The beneficial effect of this improvement is that the voltage output by the buck converter module may still fluctuate. In order to further stabilize the output voltage, the output voltage stabilization circuit uses a linear voltage regulator module. By adjusting the resistor divider network, the linear voltage regulator module can adjust the output voltage to a stable level. Capacitor component three is used to further smooth the output voltage.

[0019] In order to realize the simultaneous power supply to multiple electrical devices;

[0020] As a further improvement of the above technical solution: the number of the USB interfaces is multiple and they are electrically connected to the output voltage stabilization circuit.

[0021] The beneficial effect of this improvement is that multiple USB interfaces can provide regulated current to realize simultaneous power supply to multiple electrical devices.

[0022] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 This is the internal structure diagram of the conversion mechanism in the utility model;

[0025] Figure 3 It is a block diagram of the input voltage detection circuit in the utility model;

[0026] Figure 4 It is a frame schematic diagram of the buck converter module in the utility model;

[0027] Figure 5 It is a block diagram of the input voltage detection circuit in the utility model;

[0028] In the figure: 1. conversion mechanism; 2. spring wire; 3. plug; 4. USB interface; 5. input voltage detection circuit; 51. capacitor component one; 52. resistor component; 53. voltage comparator; 54. LED indicator; 6. buck converter module; 61. adjustable buck module; 62. inductor L1; 63. diode D1; 64. capacitor component two; 7. output voltage stabilization circuit; 71. linear voltage regulator module; 72. capacitor component three. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0030] Embodiment 1:

[0031] like Figure 1—5 shows: an electric heating device with multiple voltages suitable for electric battery vehicles, comprising an input voltage detection circuit 5, a buck converter module 6, an output voltage stabilizing circuit 7, and a USB interface 4. The input voltage detection circuit 5, the buck converter module 6, the output voltage stabilizing circuit 7, and the USB interface 4 are integrated and installed on a conversion mechanism 1. A spring wire 2 is installed on the conversion mechanism 1. The spring wire 2 is electrically connected to the input voltage detection circuit 5. A plug 3 is installed at one end of the spring wire 2. Users can use the power provided by electric bicycles with different voltage parameters to power multiple electric heating devices without consuming additional energy, thereby improving the riding comfort of electric bicycles in cold environments and also improving the practicality of electric bicycles. The input voltage detection circuit 5 includes a capacitor component 51, a resistor component 52 and a voltage comparator 53. The capacitor component 51 is composed of capacitors C1 and C2, and the resistor component 52 is composed of resistors R1 and R2. The positive electrode of the voltage comparator 53 is connected to the input voltage signal of the spring wire 2, and the negative electrode of the voltage comparator 53 is connected to the signal after the voltage is divided by the resistor component 52. The non-inverting input terminal IN+ of the voltage comparator 53 is connected to the input voltage signal, and the inverting input terminal IN- is connected to the output terminal VOUT of the linear regulator module 71 as a reference voltage. The voltage comparator 53 outputs the output voltage of the buck converter module 6 according to the comparison result between the input voltage and the reference voltage. , capacitors C1 and C2 are used to stabilize the voltage signal, resistors R1 and R2 are used to limit the current and form a voltage divider, so as to accurately detect the voltage input to the battery vehicle charging interface, and select a suitable step-down ratio according to the comparison result. The input voltage detection circuit 5 is provided with an LED indicator 54, and the LED indicator 54 is electrically connected to the voltage comparator 53. The output port of the voltage comparator 53 is connected to the LED indicator to display the working state of the input voltage detection circuit 5. The buck converter module 6 includes an adjustable buck module 61, an inductor L162, a diode D163 and a capacitor component 2 64. The capacitor component 2 64 is composed of capacitors C3 and C4. The input of the adjustable buck module 61 The input port VIN is connected to the stable voltage signal output by the input voltage detection circuit 5, the adjustment pin ADJ is adjusted through the resistor voltage divider network, and the output port VOUT is connected to the input port of the output voltage stabilizing circuit plug 3. When the input voltage meets the requirements, the buck converter module 6 starts to work, and the adjustable buck module 61 controls the frequency of storing and releasing electric energy by adjusting the conduction time of the switch tube, thereby reducing the input voltage to a stable output voltage. In this process, the diode D163 and the capacitor component 2 64 play the role of storing and smoothing the output voltage. The output voltage stabilizing circuit 7 includes a linear regulator module 71 and a capacitor component 3 72. The capacitor component 3 72 is composed of capacitors C5 and C6.The input port VIN of the linear voltage regulator module 71 is connected to the stable voltage signal output by the buck converter module 6, the adjustment pin ADJ is adjusted through the resistor voltage divider network, and the output port VOUT is connected to the input port of the USB interface 4. The voltage output by the buck converter module 6 may still fluctuate. In order to further stabilize the output voltage, the output voltage stabilization circuit 7 uses a linear voltage regulator module 71. By adjusting the resistor voltage divider network, the linear voltage regulator module 71 can adjust the output voltage to a stable level. The capacitor component 3 72 is used to further smooth the output voltage. The number of the USB interfaces 4 is multiple and electrically connected to the output voltage stabilization circuit 7. Multiple USB interfaces 4 can provide regulated current to realize simultaneous power supply to multiple electrical devices. ,

[0032] In this embodiment, the model of the voltage comparator is: LM393 voltage comparator.

[0033] In this embodiment, the model of the adjustable step-down module is: LM2596 adjustable step-down module.

[0034] In this embodiment, the model of the linear voltage regulator module is: LM317 linear voltage regulator module.

[0035] The working principle of the present technical solution is as follows: after the plug 3 is connected to the charging port of the battery vehicle, first, the input voltage detection circuit 5 detects the voltage input to the charging port of the battery vehicle. The circuit uses a capacitor component 51, a resistor component 52 and an LM393 voltage comparator 53 to compare the input voltage with the reference voltage and generate a high level or low level signal to indicate the state of the input voltage; when the input voltage meets the requirements, the buck converter module 6 starts to work. The module uses the LM2596 adjustable buck module 61 to control the frequency of storing and releasing electric energy by adjusting the conduction time of the switch tube, thereby The input voltage is reduced to a stable output voltage. In this process, the diode D163 and the capacitor component 2 64 play the role of storing and smoothing the output voltage. The voltage output by the buck converter module 6 may still fluctuate. In order to further stabilize the output voltage, the output voltage stabilization circuit 7 uses the LM317 linear voltage regulator module 71. By adjusting the resistor divider network, the linear voltage regulator module 71 can adjust the output voltage to a stable level. The capacitor component 3 72 is used to further smooth the output voltage. Finally, the stable output voltage is used to power external devices such as electrically heated gloves, seat cushions, etc. through multiple USB interfaces 4.

[0036] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. An electric heating device with multiple voltages suitable for battery vehicles, characterized in that: The invention comprises an input voltage detection circuit (5), a buck converter module (6), an output voltage stabilizing circuit (7), and a USB interface (4); the input voltage detection circuit (5), the buck converter module (6), the output voltage stabilizing circuit (7), and the USB interface (4) are integrated and installed on a conversion mechanism (1); a spring wire (2) is installed on the conversion mechanism (1); the spring wire (2) is electrically connected to the input voltage detection circuit (5); and a plug (3) is installed at one end of the spring wire (2).

2. The multi-voltage electric heating device suitable for battery vehicles according to claim 1 is characterized in that: The input voltage detection circuit (5) comprises a capacitor component (51), a resistor component (52) and a voltage comparator (53), wherein the capacitor component (51) is composed of capacitors C1 and C2, the resistor component (52) is composed of resistors R1 and R2, the positive electrode of the voltage comparator (53) is connected to the input voltage signal of the spring wire (2), and the negative electrode of the voltage comparator (53) is connected to the signal after voltage division by the resistor component (52).

3. The multi-voltage electric heating device suitable for battery vehicles according to claim 1 is characterized in that: The input voltage detection circuit (5) is provided with an LED indicator light (54), and the LED indicator light (54) is electrically connected to the voltage comparator (53).

4. The multi-voltage electric heating device suitable for battery vehicles according to claim 1 is characterized in that: The buck converter module (6) comprises an adjustable buck module (61), an inductor L1 (62), a diode D1 (63) and a capacitor component 2 (64), wherein the capacitor component 2 (64) is composed of capacitors C3 and C4. The input port VIN of the adjustable buck module (61) is connected to the stable voltage signal output by the input voltage detection circuit (5), the adjustment pin ADJ is adjusted through a resistor voltage divider network, and the output port VOUT is connected to the input port of the output voltage stabilization circuit plug (3).

5. The multi-voltage electric heating device suitable for battery vehicles according to claim 1 is characterized in that: The output voltage stabilization circuit (7) comprises a linear voltage regulator module (71) and a capacitor component three (72), wherein the capacitor component three (72) is composed of capacitors C5 and C6, an input port VIN of the linear voltage regulator module (71) is connected to a stable voltage signal output by a buck converter module (6), an adjustment pin ADJ is adjusted through a resistor voltage divider network, and an output port VOUT is connected to an input port of a USB interface (4).

6. The multi-voltage electric heating device suitable for battery vehicles according to claim 1 is characterized in that: The USB interfaces (4) are multiple in number and are electrically connected to the output voltage stabilization circuit (7).

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