Heating device of engine, engine system and vehicle

Abstract

The utility model discloses a heating device of an engine, an engine system and a vehicle, a cooling flow channel and an oil storage space are formed in the engine, the heating device comprises a first flow path, a second flow path and a third flow path, the first flow path is suitable for being communicated with the cooling flow channel to form a first circulation flow path; the second flow path is suitable for being communicated with the oil storage space to form a second circulating flow path; and the heat exchanger is used for exchanging heat with the first flow path and the second flow path, so that the temperature of a heat exchange medium in the first flow path and the temperature of oil in the second flow path are changed. The heat exchanger exchanges heat with the first flow path and the second flow path, so that the temperature of the heat exchange medium in the first flow path and the temperature of the oil liquid in the second flow path are changed, the temperature of the heat exchange medium and the temperature of the oil liquid of an engine of the whole vehicle can be rapidly changed, and then the dynamic property, economical efficiency, emission performance and comfort of the whole vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a heating device of an engine, an engine system with the heating device and a vehicle with the engine system. Background Art

[0002] In the relevant technology, coolant temperature and engine oil temperature are important parameters of the vehicle powertrain system. When existing vehicles are running in winter, due to the low temperature, the vehicle engine coolant temperature and engine oil temperature rise slowly, which affects the power, economy, emissions and comfort of the vehicle. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an engine heating device that can quickly change the temperature of the heat exchange medium and oil of the vehicle engine, thereby improving the power, economy, emission and comfort of the vehicle.

[0004] The utility model further proposes an engine system with the heating device.

[0005] The utility model further provides a vehicle with the engine system.

[0006] According to the heating device of the engine of the embodiment of the utility model, a cooling flow channel and an oil storage space are formed in the engine, and the heating device includes: a first flow path, the first flow path is suitable for communicating with the cooling flow path to form a first circulation flow path; a second flow path, the second flow path is suitable for communicating with the oil storage space to form a second circulation flow path; a heat exchanger, the heat exchanger is used for exchanging heat with the first flow path and the second flow path to change the temperature of the heat exchange medium in the first flow path and the oil in the second flow path.

[0007] According to the heating device of the engine of the embodiment of the utility model, a cooling flow channel and an oil storage space are formed in the engine, and a first flow channel and a second flow channel are provided in the heating device. The first flow channel is suitable for being connected with the cooling flow channel to form a first circulation flow channel, and the second flow channel is suitable for being connected with the oil storage space to form a second circulation flow channel. The heat exchanger is used for exchanging heat with the first flow channel and the second flow channel to change the temperature of the heat exchange medium in the first flow channel and the oil in the second flow channel, so that the temperature of the heat exchange medium and the oil of the whole vehicle engine can be changed quickly, thereby improving the power, economy, emission and comfort of the whole vehicle.

[0008] According to some embodiments of the present invention, a first heat exchange chamber and a second heat exchange chamber are formed in the heat exchanger, the first heat exchange chamber contains a first heat exchange medium, the second heat exchange chamber contains a second heat exchange medium, at least a portion of the first flow path is located in the first heat exchange chamber to exchange heat with the first heat exchange medium, and at least a portion of the second flow path is located in the second heat exchange chamber to exchange heat with the second heat exchange medium.

[0009] According to some embodiments of the present utility model, a first heating element is provided in the first heat exchange cavity, and the first heating element is used to heat the first heat exchange medium;

[0010] A second heating element is disposed in the second heat exchange cavity, and the second heating element is used to heat the second heat exchange medium.

[0011] According to some embodiments of the present invention, the engine heating device further includes: a battery and an on-off switch, wherein the on-off switch is connected to the battery, and the on-off switch is connected to both the first heating element and the second heating element.

[0012] According to some embodiments of the present utility model, the heating device of the engine further includes: an inverter, and the on-off switch is connected to the first heating element and the second heating element through the inverter.

[0013] According to some embodiments of the present invention, the engine heating device further includes: a first wire and a second wire, wherein the first wire is connected between the inverter and the first heating element, and the second wire is connected between the inverter and the second heating element.

[0014] According to some embodiments of the utility model, the heating device of the engine also includes: a controller, a first temperature sensor and a second temperature sensor, the first temperature sensor is arranged in the first flow path to detect the temperature of the heat exchange medium in the first flow path, the second temperature sensor is arranged in the second flow path to detect the temperature of the oil in the second flow path, the controller is communicatively connected with the first temperature sensor, the second temperature sensor, and the on-off switch, and the controller is configured to control the on-off switch to be turned on or off according to the detection information of the first temperature sensor and / or the second temperature sensor.

[0015] According to some embodiments of the present invention, the heating device of the engine further includes: a preheating switch, and the preheating switch is communicatively connected with the controller.

[0016] The engine system according to an embodiment of the utility model includes: an engine, in which a cooling flow channel and an oil storage space are formed; and also includes a heating device of the above embodiment, wherein the first flow path is connected with the cooling flow channel to form a first circulation flow path, and the second flow path is connected with the oil storage space to form a second circulation flow path, and the heat exchanger is used for exchanging heat with the first flow path and the second flow path to change the temperature of the heat exchange medium in the first flow path and the oil in the second flow path.

[0017] A vehicle according to an embodiment of the utility model comprises the engine system of the above embodiment.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a schematic diagram of the principle of the engine system of the embodiment of the utility model.

[0021] Reference numerals:

[0022] Heating device 100;

[0023] Engine 10; cooling channel 11; oil storage space 12;

[0024] First flow path 20;

[0025] Second flow path 30;

[0026] Heat exchanger 40; first heat exchange chamber 41; second heat exchange chamber 42; first heating element 43; second heating element 44; partition plate 45;

[0027] Battery 50; on-off switch 51; inverter 52; first wire 53; second wire 54;

[0028] Controller 60; first temperature sensor 61; second temperature sensor 62; preheating switch 63. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] Reference below Figure 1 A heating device 100 of an engine 10 , an engine system, and a vehicle according to an embodiment of the present invention are described.

[0031] According to the heating device 100 of the engine 10 of the present utility model, Figure 1 As shown, a cooling channel 11 and an oil storage space 12 are formed in the engine 10, and the heating device 100 includes: a first flow path 20, the first flow path 20 is suitable for being connected with the cooling flow path 11 to form a first circulation flow path; a second flow path 30, the second flow path 30 is suitable for being connected with the oil storage space 12 to form a second circulation flow path; a heat exchanger 40, the heat exchanger 40 is used for exchanging heat with the first flow path 20 and the second flow path 30, so as to change the temperature of the heat exchange medium in the first flow path 20 and the oil in the second flow path 30.

[0032] Among them, a cooling channel 11 and an oil storage space 12 may be formed in the engine 10, the cooling channel 11 contains a heat exchange medium, and the oil storage space 12 contains oil. The first flow path 20 is suitable for being connected with the cooling channel 11 to form a first circulation flow path, so that the heat exchange medium circulates in the first circulation flow path. The second flow path 30 is suitable for being connected with the oil storage space 12 to form a second circulation flow path, so that the oil circulates in the second circulation flow path. The heat exchanger 40 is used to exchange heat with the first flow path 20 and the second flow path 30, so that the temperature of the heat exchange medium in the first flow path 20 and the oil in the second flow path 30 changes rapidly. For example: the heat exchanger 40 heats or cools the first flow path 20 and the second flow path 30, so that the temperature of the heat exchange medium in the first circulation flow path increases or decreases.

[0033] Furthermore, the heat exchange medium in the engine 10 enters the first flow path 20 from the cooling flow channel 11, and after the heat exchanger 40 exchanges heat with the first flow path 20, the heat exchange medium returns to the cooling flow channel 11 from the first flow path 20. The oil in the engine 10 enters the second flow path 30 from the oil storage space 12, and after the heat exchanger 40 exchanges heat with the second flow path 30, the oil returns to the oil storage space 12 from the second flow path 30. Then, the heat exchange is circulated through the first circulation flow path and the second circulation flow path, so that the temperature of the heat exchange medium and the oil of the vehicle engine 10 can be changed quickly, thereby improving the power, economy, emission and comfort of the vehicle.

[0034] According to the heating device 100 of the engine 10 in the embodiment of the utility model, a cooling channel 11 and an oil storage space 12 are formed in the engine 10, and a first flow path 20 and a second flow path 30 are provided in the heating device 100. The first flow path 20 is suitable for being connected with the cooling channel 11 to form a first circulation flow path, and the second flow path 30 is suitable for being connected with the oil storage space 12 to form a second circulation flow path. The heat exchanger 40 is used for exchanging heat with the first flow path 20 and the second flow path 30 to change the temperature of the heat exchange medium in the first flow path 20 and the oil in the second flow path 30, so that the temperature of the heat exchange medium and the oil of the engine 10 of the whole vehicle can be changed quickly, thereby improving the power, economy, emission and comfort of the whole vehicle.

[0035] According to some embodiments of the present invention, Figure 1 As shown, a first heat exchange chamber 41 and a second heat exchange chamber 42 are formed in the heat exchanger 40, the first heat exchange chamber 41 has a first heat exchange medium, the second heat exchange chamber 42 has a second heat exchange medium, at least a portion of the first flow path 20 is located in the first heat exchange chamber 41 to exchange heat with the first heat exchange medium, and at least a portion of the second flow path 30 is located in the second heat exchange chamber 42 to exchange heat with the second heat exchange medium.

[0036] The heat exchanger 40 may be provided with a partition plate 45, for example, the partition plate 45 and the heat exchanger 40 may be connected by welding, or the partition plate 45 and the heat exchanger 40 may be connected by bonding, but the utility model is not limited thereto, and the partition plate 45 and the heat exchanger 40 may be connected by other means, as long as the partition plate 45 is provided in the heat exchanger 40. By providing the partition plate 45 in the heat exchanger 40, the heat exchanger 40 can be divided into a first heat exchange chamber 41 and a second heat exchange chamber 42.

[0037] It can be explained that the volumes of the first heat exchange chamber 41 and the second heat exchange chamber 42 may be the same or different, that is, the partition plate 45 may be located in the middle position of the heat exchanger 40, or the partition plate 45 may not be located in the middle position of the heat exchanger 40. The specific position of the partition plate 45 can be set and adjusted according to actual conditions, as long as the partition plate 45 can divide the heat exchanger 40 into the first heat exchange chamber 41 and the second heat exchange chamber 42.

[0038] The first heat exchange chamber 41 contains a first heat exchange medium, the second heat exchange chamber 42 contains a second heat exchange medium, and at least a portion of the first flow path 20 is located in the first heat exchange chamber 41 to exchange heat with the first heat exchange medium. For example, one-half, one-third, one-quarter, etc. of the first flow path 20 may be located in the first heat exchange chamber 41, but the utility model is not limited thereto. The first flow path 20 may also be entirely located in the first heat exchange chamber 41, as long as at least a portion of the first flow path 20 is located in the first heat exchange chamber 41 to exchange heat with the first heat exchange medium.

[0039] At least a portion of the second flow path 30 is located in the second heat exchange chamber 42 to exchange heat with the second heat exchange medium. For example, one-half, one-third, one-quarter, etc. of the second flow path 30 may be located in the second heat exchange chamber 42, but the utility model is not limited thereto. The second flow path 30 may also be entirely located in the second heat exchange chamber 42, as long as at least a portion of the second flow path 30 is located in the second heat exchange chamber 42 to exchange heat with the first heat exchange medium.

[0040] Therefore, by providing a partition plate 45 in the heat exchanger 40 to divide the heat exchanger 40 into a first heat exchange chamber 41 and a second heat exchange chamber 42, it can be ensured that the first flow path 20 exchanges heat with the first heat exchange medium, and the second flow path 30 exchanges heat with the second heat exchange medium. The temperature of the heat exchange medium in the first flow path 20 and the oil in the second flow path 30 can be changed rapidly at the same time, thereby improving the heat exchange efficiency, thereby further improving the power, economy, emissions and comfort of the entire vehicle.

[0041] According to some embodiments of the present invention, Figure 1 As shown, a first heating element 43 may be provided in the first heat exchange cavity 41, and the first heating element 43 is used to heat the first heat exchange medium; a second heating element 44 is provided in the second heat exchange cavity 42, and the second heating element 44 is used to heat the second heat exchange medium.

[0042] Among them, a first heating element 43 may be provided in the first heat exchange cavity 41, for example, the heat exchanger 40 and the first heating element 43 may be connected by welding, or by snap-fitting, or by bolts, but the utility model is not limited thereto, and the heat exchanger 40 and the first heating element 43 may be connected by other means, as long as the first heating element 43 is provided in the first heat exchange cavity 41. By providing the first heating element 43 in the first heat exchange cavity 41, the first heating element 43 can heat the first heat exchange medium in the first heat exchange cavity 41, thereby causing the first flow path 20 to exchange heat with the first heat exchange medium, so that the temperature of the heat exchange medium in the first flow path 20 changes rapidly.

[0043] A second heating element 44 may be provided in the second heat exchange cavity 42. For example, the heat exchanger 40 and the second heating element 44 may be connected by welding, or by snap-fit ​​connection, or by bolt connection, but the utility model is not limited thereto. The heat exchanger 40 and the second heating element 44 may be connected by other means, as long as the second heat exchange cavity 42 is provided with a second heating element 44. By providing the second heating element 44 in the second heat exchange cavity 42, the second heating element 44 can heat the second heat exchange medium in the second heat exchange cavity 42, thereby allowing the second flow path 30 to exchange heat with the second heat exchange medium, so that the oil temperature in the second flow path 30 changes rapidly. It should be noted that the first heat exchange medium may be set as a liquid heat exchange medium or a gas heat exchange medium, and the second heat exchange medium may be set as a liquid heat exchange medium or a gas heat exchange medium.

[0044] According to some embodiments of the present invention, Figure 1 As shown, the heating device 100 of the engine 10 may further include: a battery 50 and an on-off switch 51 , the on-off switch 51 is connected to the battery 50 , and the on-off switch 51 is connected to both the first heating element 43 and the second heating element 44 .

[0045] Among them, when the engine 10 is started, the engine 10 drives the generator to charge the battery 50 for the normal operation of the engine system. The on-off switch 51 can be connected to the battery 50 through a wiring harness, and the on-off switch 51 and the first heating element 43 and the second heating element 44 can be connected through a wiring harness. Thus, by controlling the closing of the on-off switch 51, the effect of the first heating element 43 and the second heating element 44 working can be achieved, that is, the effect of the first heating element 43 and the second heating element 44 heating the first heat exchange medium and the second heat exchange medium respectively. When the first heating element 43 and the second heating element 44 do not need to work, or the temperature of the first heat exchange medium and the second heat exchange medium reaches a preset value and no further heating is required, the on-off switch 51 can be disconnected.

[0046] It can be explained that the first heating element 43 and the second heating element 44 can both be heating resistance wires. By energizing the first heating element 43 and the second heating element 44 to generate heat, the first heating element 43 and the second heating element 44 heat the first heat exchange medium and the second heat exchange medium respectively.

[0047] According to some embodiments of the present invention, Figure 1 As shown, the heating device 100 of the engine 10 may further include: an inverter 52 , and the on-off switch 51 is connected to the first heating element 43 and the second heating element 44 via the inverter 52 .

[0048] Among them, the inverter 52 has the function of increasing the voltage. According to Joule's law, when the resistance and time are constant, the higher the voltage, the higher the heat generated by the resistance. The on-off switch 51 is connected to the first heating element 43 and the second heating element 44 through the inverter 52, that is, the inverter 52 is connected between the on-off switch 51 and the first heating element 43 and the second heating element 44. When the on-off switch 51 is closed, the inverter 52 can increase the voltage, thereby increasing the heat generated by the first heating element 43 and the second heating element 44, thereby increasing the speed at which the first heating element 43 and the second heating element 44 heat the first heat exchange medium and the second heat exchange medium, respectively, thereby further improving the power, economy, emission and comfort of the whole vehicle.

[0049] According to some embodiments of the present invention, Figure 1 As shown, the heating device 100 of the engine 10 may further include: a first wire 53 and a second wire 54 , wherein the first wire 53 is connected between the inverter 52 and the first heating element 43 , and the second wire 54 is connected between the inverter 52 and the second heating element 44 .

[0050] Among them, the first wire 53 is connected between the inverter 52 and the first heating element 43, and the second wire 54 is connected between the inverter 52 and the second heating element 44. Thus, the inverter 52 is connected to the first heating element 43 and the second heating element 44 respectively, so that the inverter 52 increases the voltage of the branch where the first heating element 43 and the second heating element 44 are located, thereby increasing the heat generated by the first heating element 43 and the second heating element 44, thereby increasing the speed at which the first heating element 43 and the second heating element 44 heat the first heat exchange medium and the second heat exchange medium respectively, thereby improving the power, economy, emissions and comfort of the entire vehicle.

[0051] According to some embodiments of the present invention, Figure 1 As shown, the heating device 100 of the engine 10 also includes: a controller 60, a first temperature sensor 61 and a second temperature sensor 62. The first temperature sensor 61 is arranged in the first flow path 20 to detect the temperature of the heat exchange medium in the first flow path 20, and the second temperature sensor 62 is arranged in the second flow path 30 to detect the oil temperature in the second flow path 30. The controller 60 is communicatively connected with the first temperature sensor 61, the second temperature sensor 62, and the on-off switch 51. The controller 60 is configured to control the on-off switch 51 to be turned on or off according to the detection information of the first temperature sensor 61 and / or the second temperature sensor 62.

[0052] Among them, the first temperature sensor 61 can be arranged in the first flow path 20 to detect the temperature of the heat exchange medium in the first flow path 20, and the second temperature sensor 62 can be arranged in the second flow path 30 to detect the oil temperature in the second flow path 30. The controller 60 and the first temperature sensor 61, the second temperature sensor 62, and the on-off switch 51 can be connected through wiring harness communication, so that the controller 60 can receive the detection information of the first temperature sensor 61 and the second temperature sensor 62 in real time.

[0053] The controller 60 may be configured to control the on / off switch 51 to be turned on or off according to the detection information of the first temperature sensor 61 and / or the second temperature sensor 62. That is, the controller 60 may be configured to control the on / off switch 51 to be turned on or off according to the detection information of the first temperature sensor 61 or the second temperature sensor 62, or the controller 60 may be configured to control the on / off switch 51 to be turned on or off according to the detection information of the first temperature sensor 61 and the second temperature sensor 62. The present application takes the example that the controller 60 may be configured to control the on / off switch 51 to be turned on or off according to the detection information of the first temperature sensor 61 and the second temperature sensor 62 as an example for explanation. Thus, the controller 60 controls the on / off switch 51 to be turned on or off by receiving the detection information of the first temperature sensor 61 and the second temperature sensor 62, so that the temperature of the first heat exchange medium in the first heat exchange cavity 41 and the temperature of the second heat exchange medium in the second heat exchange cavity 42 can always be maintained at an appropriate temperature, so that the temperature of the heat exchange medium in the first flow path 20 and the temperature of the oil in the second flow path 30 can always be maintained at an appropriate temperature, thereby improving the power, economy, emission and comfort of the whole vehicle.

[0054] According to some embodiments of the present invention, Figure 1 As shown, the heating device 100 of the engine 10 may further include: a preheating switch 63. For example, the preheating switch 63 may be a switch structure such as a mechanical button, an electronic screen trigger switch, etc. The preheating switch 63 is communicatively connected with the controller 60. The preheating switch 63 and the controller 60 may be communicatively connected via a wiring harness, or the preheating switch 63 and the controller 60 may be wirelessly connected, as long as the preheating switch 63 and the controller 60 are communicatively connected.

[0055] When the vehicle needs to be preheated in a low temperature environment in autumn and winter, the driver can trigger the preheating switch 63 to enable the controller 60 that is in communication with the preheating switch 63 to control the heating device 100 to work, so that the heat exchange medium and oil temperature of the vehicle engine 10 are quickly increased, thereby preheating the vehicle, thereby improving the power, economy, emission and comfort of the vehicle. Specifically, when the preheating switch 63 is triggered, the controller 60 controls the on-off switch 51 to close, and the battery 50 is connected to the on-off switch 51 to start the engine system. Thus, the inverter 52 connected to the on-off switch 51 increases the voltage of the branch where the first heating element 43 and the second heating element 44 are located, thereby increasing the heat generated by the first heating element 43 and the second heating element 44, and then increasing the speed at which the first heating element 43 and the second heating element 44 heat the first heat exchange medium and the second heat exchange medium, respectively, thereby increasing the temperature of the heat exchange medium in the first flow path 20 and the temperature of the oil in the second flow path 30, thereby rapidly increasing the temperature of the heat exchange medium and the oil of the vehicle engine 10, thereby achieving the effect of preheating the vehicle. When the vehicle does not need to be preheated in spring and summer, the preheating switch 63 can be turned off.

[0056] The engine system according to the embodiment of the utility model includes: an engine 10, in which a cooling channel 11 and an oil storage space 12 are formed; and also includes the heating device 100 of the above embodiment, in which a first flow path 20 is connected with the cooling flow path 11 to form a first circulation flow path, and a second flow path 30 is connected with the oil storage space 12 to form a second circulation flow path, and a heat exchanger 40 is used for exchanging heat with the first flow path 20 and the second flow path 30 to change the temperature of the heat exchange medium in the first flow path 20 and the oil in the second flow path 30.

[0057] Furthermore, the heat exchange medium in the engine 10 enters the first flow path 20 from the cooling flow channel 11, and the first heating element 43 in the first heat exchange cavity 41 heats the first heat exchange medium. After the portion of the first flow path 20 located in the first heat exchange cavity 41 exchanges heat with the heated first heat exchange medium, the heat exchange medium returns to the cooling flow channel 11 from the first flow path 20.

[0058] The oil in the engine 10 enters the second flow path 30 from the oil storage space 12, and the second heating element 44 in the second heat exchange cavity 42 heats the second heat exchange medium. After the part of the second flow path 30 in the second heat exchange cavity 42 exchanges heat with the heated second heat exchange medium, the oil returns to the oil storage space 12 through the second flow path 30. Such cyclic heat exchange can quickly change the temperature of the heat exchange medium and oil in the vehicle engine 10, thereby improving the power, economy, emission and comfort of the vehicle.

[0059] The vehicle according to the embodiment of the utility model includes the engine system of the above embodiment, which realizes the rapid heating of the heat exchange medium and oil in the engine 10 when the ambient temperature is low by applying technologies such as electronic control and heat exchanger 40 and superimposing the heat generated by the engine 10 itself when it is ignited, thereby improving the power, economy, emissions and comfort of the whole vehicle.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heating device for an engine, characterized in that: A cooling channel and an oil storage space are formed in the engine, and the heating device comprises: a first flow path, the first flow path being adapted to communicate with the cooling flow channel to form a first circulation flow path; a second flow path, the second flow path being adapted to communicate with the oil storage space to form a second circulation flow path; A heat exchanger is used for exchanging heat with the first flow path and the second flow path to change the temperature of the heat exchange medium in the first flow path and the oil in the second flow path.

2. The engine heating device according to claim 1, characterized in that: A first heat exchange chamber and a second heat exchange chamber are formed in the heat exchanger. The first heat exchange chamber contains a first heat exchange medium, and the second heat exchange chamber contains a second heat exchange medium. At least a portion of the first flow path is located in the first heat exchange chamber to exchange heat with the first heat exchange medium, and at least a portion of the second flow path is located in the second heat exchange chamber to exchange heat with the second heat exchange medium.

3. The engine heating device according to claim 2, characterized in that: A first heating element is provided in the first heat exchange cavity, and the first heating element is used to heat the first heat exchange medium; A second heating element is disposed in the second heat exchange cavity, and the second heating element is used to heat the second heat exchange medium.

4. The engine heating device according to claim 3, characterized in that: Also includes: A battery and an on-off switch, wherein the on-off switch is connected to the battery, and the on-off switch is connected to both the first heating element and the second heating element.

5. The engine heating device according to claim 4, characterized in that: Also includes: Inverter, the on-off switch is connected to the first heating element and the second heating element through the inverter.

6. The engine heating device according to claim 5, characterized in that: Also includes: a first wire and a second wire, wherein the first wire is connected between the inverter and the first heating element, and the second wire is connected between the inverter and the second heating element.

7. The engine heating device according to claim 5, characterized in that: Also includes: A controller, a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is arranged in the first flow path to detect the temperature of the heat exchange medium in the first flow path, and the second temperature sensor is arranged in the second flow path to detect the temperature of the oil in the second flow path. The controller is communicatively connected with the first temperature sensor, the second temperature sensor, and the on-off switch, and the controller is configured to control the on-off switch to be turned on or off according to the detection information of the first temperature sensor and / or the second temperature sensor.

8. The engine heating device according to claim 7, characterized in that: Also includes: A preheating switch is communicatively connected with the controller.

9. An engine system, characterized in that: include: An engine, wherein a cooling channel and an oil storage space are formed in the engine; A heating device, wherein the heating device is a heating device for an engine according to any one of claims 1 to 8, wherein the first flow path is connected to the cooling flow channel to form a first circulation flow path, the second flow path is connected to the oil storage space to form a second circulation flow path, and the heat exchanger is used to exchange heat with the first flow path and the second flow path to change the temperature of the heat exchange medium in the first flow path and the oil in the second flow path.

10. A vehicle, characterized in that: Comprising the engine system according to claim 9.

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