Travel charging device and power supply system of travel trailer and travel trailer

Abstract

The utility model relates to a travel charging device and a power supply system of a travel trailer and the travel trailer, and belongs to the technical field of touring cars, the travel charging device of the travel trailer comprises a front vehicle generator and a voltage conversion device; the front vehicle generator is connected with an engine of the front vehicle through a belt pulley, the front vehicle generator is electrically connected with the voltage conversion equipment, and the voltage conversion equipment is connected with an energy storage battery of the trailer; the front vehicle generator rotates to generate power to generate first direct current when the engine operates, the voltage conversion device converts the first direct current into second direct current, and the energy storage battery is charged through the second direct current. According to the utility model, the characteristic that the generator of the front vehicle is connected with the engine of the front vehicle through the belt pulley is utilized, the second direct current is generated through the generator of the front vehicle and the voltage conversion equipment, the energy storage battery is charged through the second direct current, and charging and energy storage of the energy storage battery of the travel trailer are realized through kinetic energy recycling.

Description

Technical Field

[0001] The utility model relates to the technical field of recreational vehicles, and in particular to a driving charging device for a trailer recreational vehicle, a power supply system and a trailer-type recreational vehicle. Background Art

[0002] As people's living standards continue to improve, RVs have gradually entered people's daily lives, providing a convenient and comfortable environment for people's travel life. However, life in an RV faces many needs, such as drinking hot water, heating in winter, refrigeration in summer, food preservation or freezing, hot water showers, etc., all of which require a lot of electricity.

[0003] At present, the energy storage battery capacity of trailer RVs is small, and when trailer RVs follow the vehicle in front during the day, they cannot be charged and replenished at a fixed location in the camp, while the electrical appliances on the vehicle are consuming electricity. If the trailer RV goes to a deserted place, it may not be able to replenish electricity for a week, which will cause the signal lights, refrigerators and other devices on the trailer RV to be unusable.

[0004] Therefore, it is urgent to propose a driving charging device for a trailer RV that can supplement electric energy for the trailer RV in the wild. Utility Model Content

[0005] In view of this, it is necessary to provide a trailer RV driving charging device, a power supply system and a trailer RV to solve the technical problem that the existing trailer RV cannot be charged in the wild.

[0006] In order to solve the above problems, the utility model provides a driving charging device for a trailer caravan, including a front vehicle generator and a voltage conversion device;

[0007] The generator of the front vehicle is connected to the engine of the front vehicle via a pulley, the generator of the front vehicle is electrically connected to the voltage conversion device, and the voltage conversion device is connected to the energy storage battery of the trailer RV;

[0008] The generator of the preceding vehicle rotates to generate a first direct current when the engine is running, and the voltage conversion device converts the first direct current into a second direct current, and the energy storage battery is charged by the second direct current.

[0009] In a possible implementation, the voltage conversion device includes a front vehicle converter and a rear vehicle converter;

[0010] The front vehicle converter is connected to the front vehicle generator and the rear vehicle converter respectively, and the rear vehicle converter is connected to the energy storage battery;

[0011] The front vehicle converter is used for converting the first direct current into alternating current and outputting the alternating current to the rear vehicle converter;

[0012] The rear vehicle converter is used for converting the alternating current into the second direct current.

[0013] In a possible implementation, the voltage conversion device further includes a leading vehicle signal connector and a trailing vehicle signal connector;

[0014] The front vehicle converter is connected to the rear vehicle converter via the front vehicle signal connector, the rear vehicle signal connector and a cable.

[0015] In a possible implementation, the voltage conversion device further includes a motorhome mains input circuit breaker;

[0016] The motorhome mains input circuit breaker is respectively connected to the rear vehicle converter and the rear vehicle signal connector for charging overcurrent protection.

[0017] In a possible implementation, the preceding vehicle converter is a unidirectional inverter for converting direct current to alternating current.

[0018] In a possible implementation, the rear vehicle converter is a bidirectional inverter.

[0019] In a possible implementation, the rear vehicle signal connector is also used to access the mains power, and the energy storage battery is charged by the mains power.

[0020] In a possible implementation, the generator of the preceding vehicle is also connected to a battery of the preceding vehicle to provide electrical energy to the battery.

[0021] The utility model also provides a trailer caravan power supply system, comprising the trailer caravan driving charging device mentioned above.

[0022] The utility model also provides a trailer-type RV, comprising the above-mentioned trailer RV driving charging device.

[0023] The beneficial effects of the utility model are as follows: the driving charging device for a trailer RV provided by the utility model includes a front vehicle generator and a voltage conversion device. The front vehicle generator is used to generate a first direct current by utilizing the characteristic that the front vehicle generator is connected to the engine of the front vehicle via a pulley. The first direct current is then converted into a second direct current by using the voltage conversion device. The energy storage battery is charged by the second direct current, thereby fully utilizing the kinetic energy of the front vehicle during movement, and realizing the charging and energy storage of the energy storage battery of the trailer RV through kinetic energy recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of an embodiment of a driving charging device for a trailer caravan provided by the utility model. DETAILED DESCRIPTION

[0025] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] The embodiment of the utility model provides a trailer RV driving charging device, a power supply system and a trailer RV; Figure 1 This is a structural schematic diagram of an embodiment of a trailer caravan driving charging device provided by the utility model; Figure 1 As shown, the trailer caravan driving charging device 100 includes a front vehicle generator 10 and a voltage conversion device 20;

[0030] The front vehicle generator 10 is connected to the engine of the front vehicle through a pulley, the front vehicle generator 10 is electrically connected to the voltage conversion device 20, and the voltage conversion device 20 is connected to the energy storage battery 300 of the trailer RV;

[0031] The generator 10 of the preceding vehicle rotates to generate first direct current when the engine is running, and the voltage conversion device 20 converts the first direct current into second direct current, and the energy storage battery 300 is charged by the second direct current.

[0032] It should be noted that in the embodiment of the utility model, the trailer RV is towed by a front vehicle. The front vehicle generally has a high-power generator, and the generator of the front vehicle is connected to the engine of the front vehicle through a pulley. When the front vehicle is moving (that is, when the engine is running), the generator is driven to rotate to generate direct current. However, the generated direct current is generally 12V direct current (that is, the first direct current), which cannot directly charge the energy storage battery 300 of the trailer RV. Therefore, a voltage conversion device 20 is required to convert the 12V direct current into 24V direct current (that is, the second direct current). The 24V direct current is used to charge the energy storage battery 300 of the trailer RV, which not only realizes the kinetic energy recovery of the front vehicle when it is moving, but also avoids the waste of electricity caused by the full charging of the battery 200 of the front vehicle.

[0033] Compared with the prior art, the trailer caravan driving charging device 100 provided in the embodiment of the utility model includes a front vehicle generator 10 and a voltage conversion device 20. By utilizing the characteristic that the front vehicle generator 10 is connected to the engine of the front vehicle through a pulley, the front vehicle generator 10 is used to generate a first direct current, and then the voltage conversion device 20 is used to convert the first direct current into a second direct current, and the energy storage battery 300 is charged by the second direct current, thereby fully utilizing the kinetic energy of the front vehicle when traveling, and realizing the charging and energy storage of the trailer caravan energy storage battery 300 through kinetic energy recovery.

[0034] In some embodiments of the present invention, the voltage conversion device 20 includes a front vehicle converter 210 and a rear vehicle converter 220;

[0035] The front vehicle converter 210 is connected to the front vehicle generator 10 and the rear vehicle converter 220 respectively, and the rear vehicle converter 220 is connected to the energy storage battery 300;

[0036] The front vehicle converter 210 is used to convert the first direct current into alternating current and output the alternating current to the rear vehicle converter 220;

[0037] The rear vehicle converter 220 is used to convert the alternating current into a second direct current.

[0038] It should be noted that in the embodiment of the present invention, since the voltages of the front vehicle and the trailer RV are inconsistent and the front vehicle and the trailer RV are in a separated state, a cable connection is required. If a step-up transformer is directly used to convert 12V DC into 24V DC, the connection cable between the front vehicle and the trailer RV will be very thick, thereby hindering the connection between the front vehicle and the trailer RV. Therefore, the embodiment of the present invention adopts two converters, the front vehicle converter 210 is arranged on the front vehicle, and the rear vehicle converter 220 is arranged on the trailer RV. The front vehicle converter 210 first converts 12V DC into 220V AC, and then transmits the 220V AC to the rear vehicle converter 220 through a cable. The rear vehicle converter 220 converts the 220V AC into 24V DC, and the 24V DC is used to charge the energy storage battery 300 of the trailer RV.

[0039] In some embodiments of the present invention, the voltage conversion device 20 further includes a front vehicle signal connector 230 and a rear vehicle signal connector 240;

[0040] The front vehicle converter 210 is connected to the rear vehicle converter 220 via a front vehicle signal connector 230 , a rear vehicle signal connector 240 , and a cable.

[0041] It should be noted that in the embodiment of the utility model, since the trailer RV and the front vehicle are connected by hanging, they are actually two separate individuals. The connection cables and interfaces between the trailer RV and the front vehicle need to be exposed. Therefore, it is necessary to set a special front vehicle signal connector 230 on the front vehicle and a rear vehicle signal connector 240 on the trailer RV to facilitate power transmission between the front vehicle and the trailer RV.

[0042] In some embodiments of the present invention, the voltage conversion device 20 further includes a motorhome mains input circuit breaker 250;

[0043] The motorhome mains input circuit breaker 250 is respectively connected to the rear vehicle converter 220 and the rear vehicle signal connector 240 for charging overcurrent protection.

[0044] It should be noted that in the embodiment of the utility model, the trailer RV needs to pass through the rear vehicle converter 220 when charging or discharging. Therefore, the embodiment of the utility model is provided with a RV AC input circuit breaker 250 between the rear vehicle converter 220 and the rear vehicle signal connector 240, which is used to perform charging overcurrent protection on the battery 200, converter and other equipment of the trailer RV.

[0045] In some embodiments of the present invention, the preceding vehicle converter 210 is a unidirectional inverter for converting DC to AC.

[0046] It should be noted that in the embodiments of the present invention, the front vehicle generally does not have an inverter and is powered by a generator and a battery 200. Therefore, the front vehicle converter 210 is newly installed on the front vehicle and only needs to have the function of converting 12V DC into 220V AC. Therefore, a unidirectional inverter is used.

[0047] In some embodiments of the present invention, the rear vehicle converter 220 is a bidirectional inverter.

[0048] It can be understood that in the embodiment of the utility model, since the trailer RV has no engine and generator and cannot generate electricity, it generally needs to be connected to the mains for charging. It has a bidirectional inverter. The utility model can directly use the bidirectional inverter of the trailer RV as the rear vehicle converter 220 to convert 220V AC power into 24V DC power to charge the energy storage battery 300.

[0049] In some embodiments of the present invention, the rear vehicle signal connector is also used to access the mains power, and the energy storage battery is charged by the mains power.

[0050] It can be understood that in the embodiment of the utility model, the trailer RV can also be connected to the mains for charging, so that the trailer RV can also store electrical energy when the front vehicle is not working, and the trailer RV is generally equipped with a RV mains input circuit breaker 250 and a bidirectional inverter. Therefore, in the specific implementation, the original equipment of the trailer RV can be directly used, and only the rear vehicle signal connector 240, the front vehicle signal connector 230 and the unidirectional inverter need to be added, which can greatly save costs. Of course, a new RV mains input circuit breaker 250 and a bidirectional inverter can also be added to form a new charging circuit, and the embodiment of the utility model does not limit this.

[0051] In some embodiments of the present invention, the generator 10 of the preceding vehicle is also connected to the battery 200 of the preceding vehicle to provide electrical energy to the battery 200 .

[0052] It can be understood that in the implementation of the present invention, the front vehicle generator 10 is not designed separately for charging the trailer RV. It is a generator equipped by the front vehicle itself, and is mainly used to charge the front vehicle battery 200. The present invention only adds some equipment to form a new charging circuit to charge the trailer RV, thereby making full use of the electrical energy of the generator.

[0053] The utility model also provides a trailer RV power supply system, which includes the above-mentioned trailer RV driving charging device 100. The specific embodiment of the trailer RV power supply system refers to the embodiment of the above-mentioned trailer RV driving charging device 100, which will not be described in detail here.

[0054] The utility model also provides a trailer RV, which includes the above-mentioned trailer RV driving charging device 100. The specific embodiment of the trailer RV refers to the embodiment of the above-mentioned trailer RV driving charging device 100, which will not be described in detail here.

[0055] The above is only a preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A charging device for a trailer caravan, characterized in that: Including the generator and voltage conversion equipment of the front vehicle; The generator of the front vehicle is connected to the engine of the front vehicle via a pulley, the generator of the front vehicle is electrically connected to the voltage conversion device, and the voltage conversion device is connected to the energy storage battery of the trailer RV; The generator of the front vehicle rotates to generate first direct current when the engine is running, and the voltage conversion device converts the first direct current into second direct current, and charges the energy storage battery through the second direct current; The voltage conversion device includes a front vehicle converter and a rear vehicle converter; The front vehicle converter is connected to the front vehicle generator and the rear vehicle converter respectively, and the rear vehicle converter is connected to the energy storage battery; The front vehicle converter is used for converting the first direct current into alternating current and outputting the alternating current to the rear vehicle converter; The rear vehicle converter is used for converting the alternating current into the second direct current.

2. The trailer caravan driving charging device according to claim 1, characterized in that: The voltage conversion device also includes a front vehicle signal connector and a rear vehicle signal connector; The front vehicle converter is connected to the rear vehicle converter via the front vehicle signal connector, the rear vehicle signal connector and a cable.

3. The trailer caravan driving charging device according to claim 2, characterized in that: The voltage conversion device also includes a motorhome mains input circuit breaker; The motorhome mains input circuit breaker is respectively connected to the rear vehicle converter and the rear vehicle signal connector for charging overcurrent protection.

4. The trailer caravan driving charging device according to claim 1, characterized in that: The preceding vehicle converter is a unidirectional inverter for converting direct current to alternating current.

5. The trailer caravan driving charging device according to claim 1, characterized in that: The following vehicle converter is a bidirectional inverter.

6. The trailer caravan driving charging device according to claim 2, characterized in that: The rear vehicle signal connector is also used to access the mains power, and the energy storage battery is charged by the mains power.

7. The trailer caravan driving charging device according to claim 1, characterized in that: The generator of the preceding vehicle is also connected to the battery of the preceding vehicle to provide electrical energy to the battery.

8. A trailer caravan power supply system, characterized in that: The trailer RV power supply system includes the trailer RV driving charging device as described in any one of claims 1-7.

9. A trailer RV, characterized in that: The trailer RV includes the trailer RV driving charging device as described in any one of claims 1-7.

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