CN218858283U

CN218858283U - Vehicle-mounted water tank heat preservation device and vehicle frame

Info

Publication number: CN218858283U
Application number: CN202223137008.1U
Authority: CN
Inventors: 杨浩; 郭必韬; 任田良; 曾懋
Original assignee: Changde Zhongche New Energy Automobile Co ltd
Current assignee: Changde Zhongche New Energy Automobile Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-14
Anticipated expiration: 2032-11-24

Abstract

The application provides a vehicle-mounted water tank heat preservation device, which comprises a water storage tank, a first circulation assembly and a second circulation assembly. The first circulation assembly includes a first conduit at least partially disposed on an outer surface of the engine. The second circulation assembly comprises a second pipeline, a heat exchanger and a first heating structure, the second pipeline is communicated with the water storage tank, the heat exchanger is respectively communicated with the first pipeline and the second pipeline, and the first pipeline and the second pipeline are arranged in parallel; the first heating structure is arranged on the outer surface of the second pipeline. The application also provides a frame, including vehicle-mounted water tank heat preservation device and frame body, the frame body is located to vehicle-mounted water tank heat preservation device. The application provides a vehicle-mounted water tank heat preservation device, when first heating structure damaged, can directly dismantle first heating structure from the surface of second pipeline and get off to maintain or change, the convenience that improves the use. The frame that this application embodiment provided is difficult for taking place to turn on one's side.

Description

Vehicle-mounted water tank heat preservation device and vehicle frame

Technical Field

The application belongs to the technical field of car as a house accessory, and more specifically says so, relates to a vehicle-mounted water tank heat preservation device and frame.

Background

With the expansion of the market of motor homes, the water temperature of the motor homes is increased. In the related art, heat generated by an engine in the working process is used for heating water, and a heating pipe is arranged in a water tank to realize heat preservation and further heating of the water. Then in the use, the heating pipe sets up inside the water tank, when the heating pipe damaged, need all dismantle the maintenance of getting off with the water tank and change, leads to the convenience of using relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a vehicle-mounted water tank heat preservation device and a vehicle frame, so that the technical problem that the water tank in the related art is poor in convenience in use is solved.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides an on-vehicle water tank heat preservation device includes:

a water storage tank;

a first circulation assembly including a first conduit disposed at least partially on an exterior surface of the engine and configured to absorb heat generated by the engine via water in the first conduit;

a second circulation assembly, the second circulation assembly comprising a second pipeline, a heat exchanger and a first heating structure, the second pipeline being communicated with the water storage tank and forming a circulation loop with the water storage tank, the heat exchanger being respectively communicated with the first pipeline and the second pipeline, the first pipeline and the second pipeline being arranged in parallel, the heat exchanger being configured to be able to transfer heat stored in the water in the first pipeline to the water in the second pipeline; the first heating structure is arranged on the outer surface of the second pipeline and/or the outer surface of the water storage tank.

Optionally, the first circulation assembly further comprises a second heating structure disposed in the first conduit and configured to heat the water delivered into the heat exchanger.

Optionally, the first circulation assembly includes a first pipe, a second pipe and a third pipe, wherein one end of the first pipe and one end of the second pipe are both communicated with the heat exchanger, and the third pipe is communicated between the other end of the first pipe and the other end of the second pipe and is arranged on the outer surface of the transmitter; the second heating structure comprises a first heater, and the first heater is arranged on the first pipeline.

Optionally, the second heating structure further comprises a second heater, and the second heater is disposed in the second pipe.

Optionally, the second heating structure further comprises a third heater, and the third heater is disposed in the second pipe.

Optionally, the first pipeline further includes a first switch valve, a second switch valve, a one-way valve and a three-way interface, the first switch valve is communicated between the first pipeline and the third pipeline, the second switch valve is disposed at one end of the third pipeline communicated with the second pipeline, the one-way valve is disposed at one end of the third pipeline communicated with the second pipeline, and the three-way interface is communicated between the second switch valve and the one-way valve and communicated with the first pipeline.

Optionally, the second pipeline includes a fourth pipeline, a fifth pipeline and a water pump, the fourth pipeline and the fifth pipeline are both communicated between the water storage tank and the heat exchanger, and the water pump is disposed in the fourth pipeline and configured to pump water in the fourth pipeline to the fifth pipeline.

Optionally, a third on-off valve is arranged on the fifth pipeline.

Optionally, a first heating structure is disposed on an outer surface of the fourth pipeline between the water pump and the water storage tank, and a first heating structure is disposed on an outer surface of the fifth pipeline between the third switch valve and the water storage tank.

The application also provides a frame, include vehicle-mounted water tank heat preservation device and frame body, vehicle-mounted water tank heat preservation device locates the frame body.

The application provides a vehicle-mounted water tank heat preservation device's beneficial effect lies in:

the on-vehicle water tank heat preservation device that this application embodiment provided, first pipeline can absorb the heat that the engine produced to through heat exchanger with absorptive heat transfer to second pipeline, with the water heating to in the second pipeline, through circulation circuit and then can keep warm to the water in the storage water tank. The first heating structure can heat when the water in the second pipeline is close to a zero point so as to preserve heat of the water in the second pipeline. The first heating structure is also capable of heating the water in the second pipeline when the user needs to use the hot water, so as to heat the water in the second pipeline. Finally, but equally important, when the first heating structure is damaged, the first heating structure can be directly detached from the outer surface of the second pipeline for maintenance or replacement, which is helpful for improving the convenience of use.

The application provides a frame's beneficial effect lies in:

the frame that this application embodiment provided locates the frame body with water tank heat preservation device, because the frame body is located the car as a house bottom, with the correlation technique with the storage water tank locate the car as a house living room or the floor with between the frame compare, can reduce the distance between storage water tank and the ground to can reduce the holistic focus of car as a house, help improving the stability of car as a house, difficult emergence is turned on one's side.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments or the related technical descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a perspective view of a vehicle water tank insulation device provided in an embodiment of the present application;

FIG. 2 is a waterway diagram of the vehicle-mounted water tank heat preservation device provided by the embodiment of the application;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

fig. 4 is a partially enlarged view of fig. 1 at B.

Wherein, in the figures, the respective reference numerals:

1. a water storage tank;

2. a first circulation assembly; 21. a first pipeline; 211. a first conduit; 212. a second conduit; 213. a third pipeline; 22. a second heating structure; 221. a first heater; 222. a second heater; 223. a third heater; 23. a first on-off valve; 24. a second on-off valve; 25. a one-way valve; 26. a three-way interface;

3. a second circulation assembly; 31. a second pipeline; 311. a fourth conduit; 312. a fifth pipeline; 313. a water pump; 32. a heat exchanger; 33. a third on-off valve;

4. a frame body.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Based on this, the embodiment of the utility model provides an on-vehicle water tank heat preservation device, this heat preservation device is when realizing heat retaining, and convenient to detach heating structure helps improving the convenience of using.

As shown in fig. 1 and 2, an embodiment of the present application provides a vehicle-mounted water tank heat preservation device, which includes a water storage tank 1, a first circulation assembly 2, and a second circulation assembly 3. The first circulation assembly 2 includes a first conduit 21, the first conduit 21 being at least partially disposed on an outer surface of the engine and configured to absorb heat generated by the engine through water in the first conduit 21. A second circulation assembly 3, the second circulation assembly 3 including a second pipeline 31, a heat exchanger 32 and a first heating structure (not shown in the figure), the second pipeline 31 being communicated with the water storage tank 1 and communicated with the water storage tank 1 to form a circulation loop, the heat exchanger 32 being respectively communicated with the first pipeline 21 and the second pipeline 31, the first pipeline 21 and the second pipeline 31 being arranged in parallel, the heat exchanger 32 being configured to transfer heat stored in the water in the first pipeline 21 to the water in the second pipeline 31; the first heating structure is arranged on the outer surface of the second pipeline 31 and/or the outer surface of the water storage tank 1.

It should be noted that, in the present embodiment, the first heating structure is provided on the outer surface of the second pipeline 31 as an example. Of course, in other embodiments, the first heating structure may also be disposed on the water storage tank 1, or on both the water storage tank 1 and the outer surface of the second pipeline 31, which is not limited herein.

Specifically, when the device is used and the motor home is in a running state, at least a part of the first pipeline 21 is provided on the outer surface of the engine, and the water in the first pipeline 21 can absorb the heat generated by the engine and is conveyed to the heat exchanger 32 through the first pipeline 21. The water in the second pipeline 31 exchanges heat with the water in the first pipeline 21 through the heat exchanger 32, so that the temperature of the water in the second pipeline 31 can be increased. The second pipe 31 communicates with the tank 1 and forms a circulation circuit with the water outlet, so that the temperature of the water in the tank 1 can be raised until the temperature in the tank 1 is substantially the same as the temperature in the first pipe 21. When the heat that the car as a house was in parking state or the production of engine was not enough to keep warm to the water in the second pipeline 31, first heating structure can heat the water in the second pipeline 31, can keep warm or heat according to the actual application demand to the water in the second pipeline 31.

The application provides a vehicle-mounted water tank heat preservation device, first pipeline 21 can absorb the heat that the engine produced to transmit absorbed heat to second pipeline 31 through heat exchanger 32, with the water heating in the second pipeline 31, through circulation circuit and then can keep warm to the water in the storage water tank 1. The first heating structure is capable of heating the water in the second pipe 31 when the water is near zero to keep the water in the second pipe 31 warm. The first heating structure is also capable of heating the water in the second pipe 31 to heat the water in the second pipe 31 when the user needs to use hot water. Last but not least, when the first heating structure is damaged, the first heating structure can be directly detached from the outer surface of the second pipeline 31 for maintenance or replacement, contributing to an improvement in convenience of use.

Optionally, the second circulation assembly 3 comprises a detachment structure provided to the second conduit 31 and configured to detachably mount the first heating structure.

Specifically, in this embodiment, a detachable structure is described as an example of an adhesive layer. Of course, in other embodiments, the detachable structure may be provided as a tie, a heat-resistant strap, or other structures, and is not limited herein.

So set up, second pipeline 31 can realize dismantling the connection with first heating structure.

Optionally, the first heating structure is electrically connected to an external power source.

So set up, first heating structure does not use on-vehicle power can heat second pipeline 31, helps practicing thrift the on-vehicle energy.

Optionally, the first heating structure is provided as a heat trace tape.

With this arrangement, the first heating structure can be changed according to the change of the arrangement of the second pipeline 31, which facilitates the arrangement of the first heating structure, so that the first heating structure can keep warm or heat the second pipeline 31 all the time.

In one embodiment of the present application, referring to fig. 1, the first circulation assembly 2 further includes a second heating structure 22, and the second heating structure 22 is disposed on the first pipeline 21 and configured to heat the water delivered to the heat exchanger 32.

So configured, the second heating structure 22 is capable of heating the water in the first pipeline 21. When the motor home is in a parking state or the temperature generated by the engine is not enough to make the water in the second pipeline 31 rise above the zero point, the water in the first pipeline 21 is heated by the second heating structure 22, and the generated heat is transferred to the water in the second pipeline 31 to heat the water in the second pipeline 31, so that the water in the water storage tank 1 can be insulated or heated, and the convenience in use is further improved.

In an embodiment of the present application, referring to fig. 1 to 3, the first circulation module 2 includes a first pipe 211, a second pipe 212, and a third pipe 213, wherein one end of the first pipe 211 and one end of the second pipe 212 are both communicated with the heat exchanger 32, and the third pipe 213 is communicated between the other end of the first pipe 211 and the other end of the second pipe 212 and is disposed on an outer surface of the transmitter; the second heating structure 22 includes a first heater 221, and the first heater 221 is disposed at the first pipe 211.

Wherein the first pipe 211 has a first end (not shown) and a second end (not shown), the second pipe 212 has a third end (not shown) and a fourth end (not shown), and the third end has a fifth end (not shown) and a sixth end (not shown). The first end portion communicates with the heat exchanger 32 so that the first conduit 211 can communicate with the heat exchanger 32. The second end portion communicates with the fifth end portion so that the first conduit 211 can communicate with the third conduit 213. The sixth end portion communicates with the third end portion so that the third conduit 213 can communicate with the second conduit 212. The fourth conduit 311 is in communication with the heat exchanger 32 so that the third conduit 213 can be in communication with the heat exchanger 32.

Specifically, in the present embodiment, the water in the first pipe 21 flows through the first pipe 211, the third pipe 213, the second pipe 212, and the heat exchanger 32 in this order, and thus is repeatedly circulated. The first heater 221 can preliminarily heat the water in the first pipe 211 and then flow to the third pipe 213. The water in the third conduit 213 is able to absorb heat generated by the engine and then flows to the second conduit 212 and finally through the second conduit 212 to the heat exchanger 32 where it exchanges heat with the water in the second conduit 31.

It should be noted that the first heater 221 is normally open, and the water in the first pipeline 21 is normally kept above zero, that is, the water temperature in the first pipeline 21 is in a cold water state. Similarly, the water in the second pipeline 31 is in a cold water state.

With this arrangement, the water in the first pipe 211 can be heated by the first heater 221 after heat exchange in the heat exchanger 32, and then the water flows to the third pipe 213, and the water in the third pipe 213 can be heated again by the engine. Thus, when the motor home is in a parking state or the temperature generated by the engine is not enough to enable the water in the second pipeline 31 to rise above the zero point, the water in the first pipeline 21 can be heated by the first heater 221, and the generated heat is transferred to the water in the second pipeline 31 to heat the water in the second pipeline 31, so that the water in the water storage tank 1 can be insulated or heated, and the convenience of use is further improved.

Optionally, a driving pump (not shown) is disposed on the first pipe 211 and/or the second pipe 212.

So configured, the driving pump can flow the water in the first pipeline 21 in the direction of the first pipe 211, the third pipe 213, the second pipe 212 and the heat exchanger 32.

Alternatively, the first heater 221 is provided as a warm air blower.

In one embodiment of the present application, referring to fig. 1 and 3, the second heating structure 22 further includes a second heater 222, and the second heater 222 is disposed in the second pipe 212.

So configured, the water in the third conduit 213 flows to the second conduit 212 after absorbing the heat generated by the engine. The water in the second pipe 212 can be heated by the second heater 222 so that the temperature of the water flowing into the second pipe 212 rises again. Thus, the water temperature in the first pipeline 21 can be adjusted according to the actual application requirement, and the convenience of use is improved.

Optionally, the second heater 222 is electrically connected to an external controller.

Specifically, the second heater 222 can be turned on according to the actual application requirement, and in the off state, only the first heater 221 and/or the third pipe 213 exist in the first pipe 21 to heat the water in the first pipe 21. Therefore, the temperature of the water in the first pipe 21 is in a cold water state when the first heater 221 is in a closed state. In the on state, the second heater 222 can heat the water in the first pipe 21 and heat the water in the first pipe 21 through the first heater 221 and/or the third pipe 213, while the water in the first pipe 21 is in a warm water state.

With such an arrangement, when a user needs to use water with different temperatures, the external controller adjusts the on/off of the second heater 222 according to actual application requirements, i.e., the water temperature in the first pipeline 21 can be adjusted, which is helpful for improving convenience of use.

Optionally, the second heater 222 is provided as a fuel heater.

So set up, the water in the second pipeline 212 can be heated fast to the fuel oil heater, when the user needs to use hot water, can heat the water in the second pipeline 212 fast to through heat exchanger 32 so that the temperature of the water in the second pipeline 31 rises fast, the user can use hot water. In addition, when the water in the second pipe 212 is below the zero point, the heater then quickly raises the water in the second pipe 212 above the zero point to restart the circulation of the water in the first pipe 21, contributing to the improvement of convenience of use.

In one embodiment of the present application, referring to fig. 1 and 4, the second heating structure 22 further includes a third heater 223, and the third heater 223 is disposed on the second pipe 212.

With this arrangement, after the water in the first pipe 211 absorbs the heat generated by the first heater 221 and/or the engine, and/or the second heater 222, the third heater 223 can heat the water in the second pipe 212 again, so that the temperature of the water flowing into the second pipe 212 rises again. Thus, the water temperature in the first pipeline 21 can be adjusted according to the actual application requirement, and the convenience of use is improved.

Optionally, the third heater 223 is electrically connected to an external controller.

Specifically, the third heater 223 can be turned on according to the actual application requirement, and in the off state, only the first heater 221 and/or the third pipe 213 exist in the first pipe 21, and/or the second heater 222 heats the water in the first pipe 21. Therefore, when the second heater 222 and the third heater 223 are both in the off state, the temperature of the water in the first pipe 21 is in the cold water state. When the third heater 223 is turned off in a state where the second heater 222 is turned on, the water in the first pipe 21 is in a warm water state. When both the second heater 222 and the third heater 223 are in the on state, the temperature of the water in the second pipe 31 is in the hot water state at this time.

With the arrangement, when a user needs to use water with different temperatures, the external controller adjusts the on-off state of the third heater 223 according to the actual application requirement, that is, the water temperature in the first pipeline 21 can be adjusted, which is helpful for improving the convenience of use.

Optionally, the third heater 223 is provided as an electric heater.

In an embodiment of the present application, referring to fig. 1 and fig. 3 together, the first pipeline 21 further includes a first switch valve 23, a second switch valve 24, a check valve 25 and a three-way port 26, the first switch valve 23 is connected between the first pipeline 211 and the third pipeline 213, the second switch valve 24 is disposed at one end of the second pipeline 212 connected to the third pipeline 213, the check valve 25 is disposed at one end of the third pipeline 213 connected to the second pipeline 212, and the three-way port 26 is connected between the second switch valve 24 and the check valve 25 and connected to the first pipeline 211.

Wherein the tee structure has a seventh end (not shown), an eighth end (not shown), and a ninth end (not shown). In this embodiment, the seventh end portion communicates with the first pipe 211, so that the three-way structure can communicate with the first pipe 211. The first switching valve 23 is communicated between the second end portion and the fifth end portion so that the first switching valve 23 can communicate the first pipe 211 and the third pipe 213. The check valve 25 communicates between the sixth end and the eighth end such that water in the second pipe 212 cannot flow into the third pipe 213. The second on-off valve 24 is communicated between the ninth end portion and the third end portion so that the second on-off valve 24 can communicate the third piping 213 and the second piping 212.

Specifically, when both the first and

second switching valves

23 and 24 are in the open state, the water in the first pipe 21 flows through the first pipe 211, the third pipe 213, the second pipe 212, and the heat exchanger 32 in order. When the first on-off valve 23 is in a closed state and the second on-off valve 24 is in an open state, the water in the first pipe 21 flows through the first pipe 211, the second pipe 212, and the heat exchanger 32 in this order. When both the first and second on-off

valves

23 and 24 are in the closed state, the flow of water in the first pipe 21 is stopped.

With this arrangement, when both the first on-off valve 23 and the second on-off valve 24 are in the open state, the heat generated by the engine can be absorbed by the third pipe 213 in the traveling state. When the first on-off valve 23 is in the off state and the second on-off valve 24 is in the on state, the water in the first pipeline 21 can be prevented from flowing through the third pipeline 213 in the parking state, so that heat loss caused by long flowing distance of the water in the first pipeline 21 is prevented, and the heat preservation effect of the first pipeline 21 is improved. When the first switch valve 23 and the second switch valve 24 are both in the closed state, the water in the first pipeline 21 stops flowing, so that the first pipeline 21 can open the water path protection, and the safety performance of the heat preservation device is improved.

Optionally, the first switch valve 23 and the second switch valve 24 are electrically connected with an external controller.

In an embodiment of the present application, referring to fig. 1, 3 and 4, the second pipeline 31 includes a fourth pipeline 311, a fifth pipeline 312 and a water pump 313, the fourth pipeline 311 and the fifth pipeline 312 are both communicated between the water storage tank 1 and the heat exchanger 32, and the water pump 313 is disposed in the fourth pipeline 311 and configured to send the water pump 313 in the fourth pipeline 311 to the fifth pipeline 312.

So configured, the water pump 313 can circulate the water in the second pipeline 31 along the storage tank 1, the fourth pipeline 311, the heat exchanger 32 and the fifth pipeline 312 by pumping the water pump 313 from the storage tank 1 to the fourth pipeline 311 and pumping the water pump 313 in the fourth pipeline 311 to the heat exchanger 32 and the fifth pipeline 312. In this way it is ensured that the water in the second line 31 passes through the heat exchanger 32 and exchanges heat with the water in the first line 21.

In one embodiment of the present application, referring to fig. 4, a third on/off valve 33 is disposed on the fifth pipe 312.

So configured, when the third on/off valve 33 is in the open state, the water in the second pipeline 31 circulates along the water storage tank 1, the fourth pipeline 311, the heat exchanger 32 and the fifth pipeline 312. The third on/off valve 33 is in a closed state, so that the water in the second pipeline 31 stops flowing, and at the moment, the second pipeline 31 is in a waterway protection state, which is beneficial to improving the safety of the heat preservation device.

Optionally, the third on/off valve 33 is electrically connected with an external controller.

In an embodiment of the present application, referring to fig. 1 and 4, a first heating structure is disposed on an outer surface of the fourth pipe 311 between the water pump 313 and the water storage tank 1, and a first heating structure is disposed on an outer surface of the fifth pipe 312 between the third on/off valve 33 and the water storage tank 1.

So set up, first heating structure locates the one end that fourth pipeline 311 is close to storage water tank 1 and the one end that fifth pipeline 312 is close to storage water tank 1. This helps to improve the thermal insulation effect of the storage tank 1.

This application still provides a frame, including vehicle-mounted water tank heat preservation device and frame body 4, vehicle-mounted water tank heat preservation device locates frame body 4.

The application provides a frame locates frame body 4 with water tank heat preservation device, because frame body 4 is located the car as a house bottom, with the correlation technique with storage water tank 1 locate between car as a house living room or floor and the frame compare, can reduce the distance between storage water tank 1 and the ground to can reduce the holistic focus of car as a house, help improving the stability of car as a house, difficult emergence is turned on one's side.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides an on-vehicle water tank heat preservation device which characterized in that includes:

a water storage tank;

2. The on-board tank warmer of claim 1, wherein the first circulation assembly further comprises a second heating structure disposed in the first conduit and configured to heat water delivered to the heat exchanger.

3. The vehicle-mounted water tank heat preservation device according to claim 2, wherein the first circulation assembly comprises a first pipeline, a second pipeline and a third pipeline, wherein one end of the first pipeline and one end of the second pipeline are communicated with the heat exchanger, and the third pipeline is communicated between the other end of the first pipeline and the other end of the second pipeline and is arranged on the outer surface of the transmitter; the second heating structure comprises a first heater, and the first heater is arranged on the first pipeline.

4. The vehicle tank warming apparatus according to claim 3, wherein said second heating structure further comprises a second heater provided in said second duct.

5. The vehicle tank warmer of claim 3, wherein the second heating structure further comprises a third heater disposed in the second conduit.

6. The vehicle-mounted water tank heat preservation device according to claim 3, wherein the first pipeline further comprises a first switch valve, a second switch valve, a one-way valve and a three-way connector, the first switch valve is communicated between the first pipeline and the third pipeline, the second switch valve is arranged at one end of the second pipeline communicated with the third pipeline, the one-way valve is arranged at one end of the third pipeline communicated with the second pipeline, and the three-way connector is communicated between the second switch valve and the one-way valve and communicated with the first pipeline.

7. The vehicle tank warmer of claim 1, wherein the second conduit comprises a fourth conduit, a fifth conduit, and a water pump, the fourth conduit and the fifth conduit each communicating between the tank and the heat exchanger, the water pump being disposed in the fourth conduit and configured to pump water in the fourth conduit to the fifth conduit.

8. The vehicle-mounted water tank heat preservation device according to claim 7, characterized in that a third on-off valve is provided on the fifth pipe.

9. The vehicle-mounted water tank heat preservation device according to claim 8, wherein a first heating structure is arranged on the outer surface of the fourth pipeline between the water pump and the water storage tank and on the outer surface of the fifth pipeline between the third switch valve and the water storage tank.

10. A vehicle frame, characterized by comprising the vehicle-mounted water tank heat preservation device and a vehicle frame body as claimed in any one of claims 1 to 9, wherein the vehicle-mounted water tank heat preservation device is arranged on the vehicle frame body.