Heating device, heating system and vehicle

Abstract

The utility model relates to a heating device, a heating system and a vehicle, the heating device comprises an auxiliary water tank, and a water chamber is arranged in the auxiliary water tank; the heater is integrated outside the auxiliary water tank and used for heating liquid flowing through the heater and conveying the liquid to the water chamber; and the water pump is used for pumping liquid out of the water chamber. The heating device and the heater are integrated outside the auxiliary water tank, and the heater and the auxiliary water tank do not need to be connected through a pipeline, so that the number of parts is reduced, the front cabin space of the whole vehicle can be saved, the weight of the whole vehicle is reduced, the light weight of the whole vehicle is facilitated, and the endurance of the vehicle can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steering shaft seals and relates to a heating device, a heating system and a vehicle. Background Art

[0002] Pure electric vehicles do not have engines and cannot be heated by the waste heat of the engine coolant of traditional fuel vehicles. The heating of the air conditioning system of pure electric vehicles is generally achieved through PTC (Positive Temperature Coefficient) water heating, PTC wind heating or a heat pump system.

[0003] In the air conditioning system, the heating principle of PTC water heating is as follows: the auxiliary water tank, PTC heater, heater core and water pump are connected in series through pipes to form a loop, which can be used to heat the passenger compartment or defrost the car windows in cold weather. In the battery thermal management system, the principle of PTC water heating is as follows: the auxiliary water tank, PTC heater, battery pack and water pump are connected in series through pipes to form a loop, which can heat the battery pack at low temperature, maintain the appropriate working temperature of the battery pack and improve the vehicle's cruising range.

[0004] However, the existing PTC water heating solution requires more pipes in series due to the independent and dispersed layout of the auxiliary water tank, PTC heater, heater core (or battery pack) and water pump. It has more parts and occupies more space in the front cabin of the vehicle, and the overall weight is heavy, which does not conform to the trend of lightweighting. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in view of the problem that the existing PTC water heating solution has many parts and occupies more space in the front cabin of the whole vehicle, a heating device, a heating system and a vehicle are provided.

[0006] In order to solve the above technical problems, on the one hand, the utility model provides a heating device, comprising:

[0007] A secondary water tank, wherein the secondary water tank has a water chamber inside;

[0008] A heater, the heater being integrated outside the auxiliary water tank and used for heating the liquid flowing through the heater and delivering the liquid to the water chamber;

[0009] A water pump is used to pump liquid out of the water chamber.

[0010] According to the heating device of the embodiment of the utility model, the heater is integrated on the outside of the auxiliary water tank, and the heater and the auxiliary water tank do not need to be connected by pipes, which reduces the number of parts, can save the space of the front cabin of the whole vehicle, and reduce the weight of the whole vehicle, which is conducive to the lightweight of the whole vehicle and can improve the vehicle's endurance. In addition, the heater is integrated on the outside of the auxiliary water tank, which can also simplify the installation, improve the assembly efficiency, reduce the maintenance cost of the vehicle, and improve the safety of the whole vehicle.

[0011] Optionally, the water pump is integrated outside the auxiliary water tank.

[0012] Optionally, a water pump inlet and a water pump outlet are provided on the auxiliary water tank, and the liquid pumped out of the water chamber flows into the water pump through the water pump inlet and flows out of the water pump through the water pump outlet.

[0013] Optionally, the temperature sensor is used to detect the temperature of the liquid in the water chamber.

[0014] Optionally, the temperature sensor is integrated outside the auxiliary water tank.

[0015] Optionally, a temperature sensor installation port communicating with the water chamber is provided on the auxiliary water tank, and the temperature sensor is installed in the temperature sensor installation port.

[0016] Optionally, the heater comprises a heater body and a water tank, the water tank is integrated with an outer side wall of the auxiliary water tank, and the heater body is fixed to the outside of the auxiliary water tank and covers the water tank;

[0017] The heater comprises a heater water inlet, a heater water outlet, and a heating channel connected between the heater water inlet and the heater water outlet. The heating channel is formed between the heater body and the water tank. The water outlet is connected to the water chamber.

[0018] Optionally, the water inlet of the heater is integrated into the water tank, and the water outlet of the heater is arranged on the bottom wall of the water tank.

[0019] Optionally, the height of the water outlet of the heater is greater than the height of the water inlet of the heater.

[0020] Optionally, the heater body comprises a heater cover and a heating core assembly, the heater cover is sealingly connected to the outside of the auxiliary water tank and covers the water tank to form a receiving cavity therebetween, and the heating core assembly is located in the receiving cavity;

[0021] The heating core assembly is used to heat the liquid flowing through the heating flow channel.

[0022] Optionally, the heating core assembly includes a heating core and a plurality of heating modules, the heating core includes a heating core body and a plurality of heating grooves connected to the heating core body on a side facing the water tank, the plurality of heating grooves protrude toward the water tank, the interior of the heating grooves is hollow to form a heating module installation groove, and each of the heating modules is inserted into the corresponding heating module installation groove;

[0023] Optionally, a plurality of the heating grooves are abutted against the bottom wall of the water groove, and sub-channels are formed between adjacent heating grooves. The plurality of heating grooves are staggered so that the plurality of sub-channels are connected in sequence to form the heating channel.

[0024] Optionally, a plurality of parallel ribs are provided on the bottom wall of the water tank, and the top end of the heating tank is limited to be located between two adjacent ribs.

[0025] Optionally, the heating module is a PTC heating module;

[0026] The heater body also includes an electronic control assembly, a high-voltage wiring harness assembly and a low-voltage wiring harness assembly, which are located in the accommodating cavity, and the high-voltage wiring harness assembly and the low-voltage wiring harness assembly are electrically connected to the electronic control assembly, respectively. An IGBT module is provided on the electronic control assembly, and the heating module is electrically connected to the electronic control assembly.

[0027] Optionally, the auxiliary water tank includes an auxiliary water tank cover and an auxiliary water tank body, and the auxiliary water tank cover is installed on the top of the auxiliary water tank body to form the water chamber inside the two.

[0028] Optionally, the water chamber includes a first water chamber, a second water chamber and a third water chamber which are connected in sequence, the first water chamber and the second water chamber are separated by a first partition, the second water chamber and the third water chamber are separated by a second partition, the first water chamber is connected to the heater outlet of the heater, and the third water chamber is connected to the water pump inlet of the water pump.

[0029] Optionally, the auxiliary water tank further comprises a filling cap, the auxiliary water tank cap is provided with a filling port connected to the water chamber, and the filling cap is detachably connected to the filling port.

[0030] Optionally, the filling port is communicated with the second water chamber, and an exhaust port is provided on a side wall of the filling port.

[0031] Optionally, the heater water inlet of the heater is integrally formed with the auxiliary water tank body.

[0032] Optionally, a temperature sensor is further included, and the temperature sensor is used to detect the temperature of the liquid in the water chamber;

[0033] A temperature sensor installation opening communicated with the water chamber is integrally formed on the auxiliary water tank body, and the temperature sensor is installed in the temperature sensor installation opening.

[0034] Optionally, the water pump has a water pump cover and a water pump outlet, and the water pump cover and the water pump outlet are integrally formed with the auxiliary water tank body;

[0035] The water pump is an electric water pump, and the motor and impeller of the water pump are accommodated inside the water pump cover.

[0036] Optionally, the auxiliary water tank body has a first side wall, a second side wall, a third side wall and a fourth side wall, the first side wall is opposite to the third side wall, the second side wall is opposite to the fourth side wall, the second side wall is connected between the first side wall and the third side wall, and the fourth side wall is connected between the first side wall and the third side wall;

[0037] The heater is integrated on the outside of the first side wall;

[0038] The water pump is integrated outside the second side wall.

[0039] Optionally, a mounting bracket is provided on at least one of the second side wall, the third side wall and the fourth side wall.

[0040] On the other hand, an embodiment of the utility model also provides a heating system, including an air conditioning heater core and the above-mentioned heating device, the water outlet of the water pump is connected to the water inlet of the air conditioning heater core through a first pipeline, and the heater water inlet of the heater is connected to the water outlet of the air conditioning heater core through a second pipeline.

[0041] Optionally, a blower is also included, and the blower is used to blow the hot air generated by the air conditioning heater core into the vehicle.

[0042] On the other hand, an embodiment of the utility model also provides a heating system, including a battery pack and the above-mentioned heating device, the water outlet of the water pump is connected to the water inlet of the thermal management device of the battery pack through a third pipeline, and the heater water inlet of the heater is connected to the water outlet of the thermal management device of the battery pack through a fourth pipeline.

[0043] On the other hand, an embodiment of the utility model also provides a heating system, including an air-conditioning heater core, a battery pack and the above-mentioned heating device, the water outlet of the water pump is respectively connected to the water inlet of the air-conditioning heater core and the water inlet of the thermal management device of the battery pack, and the heater water inlet of the heater is respectively connected to the water outlet of the air-conditioning heater core and the water outlet of the thermal management device of the battery pack.

[0044] Optionally, it also includes a three-way valve, the water outlet of the water pump is connected to the first interface of the three-way valve through a fifth pipeline, the second interface of the three-way valve is connected to the water inlet of the air conditioning heater core through a sixth pipeline, the third interface of the three-way valve is connected to the water outlet of the thermal management device of the battery pack through a seventh pipeline, the heater water inlet of the heater is connected to the water outlet of the air conditioning heater core through an eighth pipeline, and the heater water inlet of the heater is connected to the water outlet of the thermal management device of the battery pack through a ninth pipeline.

[0045] On the other hand, an embodiment of the present invention further provides a vehicle, comprising the above-mentioned heating device or the above-mentioned heating system. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a three-dimensional diagram of a heating device provided by a first embodiment of the utility model;

[0047] Figure 2 It is an exploded view of the auxiliary water tank of the heating device provided by the first embodiment of the utility model;

[0048] Figure 3 yes Figure 2 Another perspective of the picture;

[0049] Figure 4 It is an exploded view of the heater of the heating device provided by the first embodiment of the utility model;

[0050] Figure 5 It is an exploded view of a heating core assembly of a heater of a heating device provided in a first embodiment of the utility model;

[0051] Figure 6 is a schematic diagram of a heating system provided by a second embodiment of the utility model;

[0052] Figure 7 is a schematic diagram of a heating system provided in a third embodiment of the present utility model;

[0053] Figure 8 It is a schematic diagram of a heating system provided in the fourth embodiment of the present utility model.

[0054] The reference numerals in the specification are as follows:

[0055] 10. Heating device; 20. Air conditioning heater core; 30. Blower; 40. Three-way valve; P. Battery pack; 501. First pipeline; 502. Second pipeline; 601. Third pipeline; 602. Fourth pipeline; 701. Fifth pipeline; 702. Sixth pipeline; 703. Seventh pipeline; 704. Eighth pipeline; 705. Ninth pipeline;

[0056] 1. Auxiliary water tank; 11. Auxiliary water tank cover; 111. Filling cap; 112. Filling port; 113. Limiting column; 114. Exhaust port; 12. Auxiliary water tank body; 121. Temperature sensor installation port; 122. Water pump outlet; 123. Mounting bracket; 124. First water chamber; 125. Second water chamber; 126. Third water chamber; 127. First partition; 128. Second partition; 129. Heater outlet; 2. Heater; 21. Heater inlet; 22. Sink; 221. Rib; 222. Stepped surface; 223, first mounting surface; 224, first mounting hole; 23, heating core assembly; 231, heating core; 2311, heating core body; 2312, heating groove; 23121, heating module mounting groove; 232, heating module; 24, electronic control assembly; 25, TGBT; 26, low-voltage wiring harness assembly; 27, high-voltage wiring harness assembly; 28, heater cover; 281, second mounting hole; 282, second mounting surface; 3, temperature sensor; 4, water pump; 41, water pump cover; 5, bolts. DETAILED DESCRIPTION

[0057] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0058] First embodiment

[0059] See also Figures 1 to 6 The heating device 10 provided in the first embodiment of the utility model includes a sub-water tank 1, a heater 2 and a water pump 4. The sub-water tank 1 has a water chamber inside; the heater 2 is integrated with the outside of the sub-water tank 1, and is used to heat the liquid flowing through the heater 2 and transport it to the water chamber; the water pump 4 is used to pump the liquid out of the water chamber.

[0060] In the heating device 10 of the first embodiment of the utility model, the heater 2 is integrated on the outside of the auxiliary water tank 1. The heater 2 and the auxiliary water tank 1 do not need to be connected by pipes, which reduces the number of parts, saves the space in the front cabin of the whole vehicle, and reduces the weight of the whole vehicle, which is conducive to the lightweight of the whole vehicle and can improve the vehicle's endurance. In addition, since the heater 2 is integrated on the outside of the auxiliary water tank 1, it can also simplify installation, improve assembly efficiency, reduce vehicle maintenance costs, and improve the safety of the whole vehicle.

[0061] like Figure 1 As shown, the water pump 4 is integrated outside the auxiliary water tank 1 .

[0062] By integrating the water pump 4 on the outside of the auxiliary water tank 1, the water pump 4 and the auxiliary water tank 1 do not need to be connected by pipelines, the number of parts is reduced, the space in the front cabin of the whole vehicle can be saved, and the weight of the whole vehicle is reduced, which is beneficial to the lightweight of the whole vehicle, and can also simplify installation, improve assembly efficiency, reduce vehicle maintenance costs, and enhance the safety of the whole vehicle.

[0063] like Figure 1 and Figure 2 As shown, the auxiliary water tank 1 is provided with a water pump inlet and a water pump outlet 122. The liquid pumped out of the water chamber flows into the water pump 4 through the water pump inlet, and flows out of the water pump 4 through the water pump outlet 122, thereby realizing the pumping out of the liquid in the auxiliary water tank 1.

[0064] like Figure 1 As shown, the heating device 10 further includes a temperature sensor 3, and the temperature sensor 3 is used to detect the temperature of the liquid in the water chamber and adjust the power of the heater 2 when it is working according to the heating demand of the whole vehicle.

[0065] like Figure 1 As shown, the temperature sensor 3 is integrated on the outside of the auxiliary water tank 1 to reduce the number of parts and simplify installation, while improving assembly efficiency, reducing vehicle maintenance costs, and improving the safety of the entire vehicle.

[0066] like Figure 1 and Figure 2 As shown, the auxiliary water tank 1 is provided with a temperature sensor installation port 121 communicated with the water chamber, and the temperature sensor 3 is installed in the temperature sensor installation port 121 to realize the assembly of the auxiliary water tank 1 on the auxiliary water tank 1 .

[0067] like Figure 2 and Figure 4 As shown, the heater 2 includes a heater body and a water tank 22 . The water tank 22 is integrated with the outer wall of the auxiliary water tank 1 . The heater body is fixed to the outside of the auxiliary water tank 1 and covers the water tank 22 .

[0068] The heater 2 has a heater water inlet 21, a heater water outlet 129, and a heating channel connected between the heater water inlet 21 and the heater water outlet 129. The heating channel is formed between the heater body and the water tank 22. The heater water outlet 129 is connected to the water chamber.

[0069] When the heating device 10 is working, the liquid first enters the heating channel formed between the heater body and the water tank 22 through the heater water inlet 21, and the heater body heats the liquid in the heating channel. Afterwards, the heated liquid enters the water chamber through the heater water outlet 129, and is finally discharged under the action of the water pump 4.

[0070] like Figure 2 As shown, a stepped surface 222 is provided on the groove wall of the water groove 22 close to the heater body, and the stepped surface 222 and the heater body are sealed by a sealing ring to achieve sealing of the heating flow channel formed between the heater body and the water groove 22.

[0071] like Figure 1 As shown, the heater water inlet 21 is integrated into the water tank 22, and the heater water outlet 129 is arranged on the bottom wall of the water tank 22, so as to reduce the number of parts, simplify installation, improve assembly efficiency, reduce vehicle maintenance costs, and improve the safety of the entire vehicle.

[0072] like Figure 1 As shown, the height of the heater water outlet 129 is greater than the height of the heater water inlet 21 to ensure that the liquid in the heating flow channel can be fully heated by the heater body.

[0073] like Figure 4 As shown, the heater body includes a heater cover 28 and a heating core assembly 23. The heater cover 28 is sealed and connected to the outside of the auxiliary water tank 1 and covers the water tank 22 to form a receiving cavity between the two. The heating core assembly 23 is located in the receiving cavity. The heating core assembly 23 is used to heat the liquid flowing through the heating flow channel.

[0074] like Figure 2 and Figure 4 As shown, a first mounting surface 223 is provided on the water tank 22, and a second mounting surface 282 is provided on the heater cover 28. The first mounting surface 223 cooperates with the second mounting surface 282, and a sealing ring is sandwiched between the first mounting surface 223 and the second mounting surface 282 to achieve a sealed connection between the water tank 22 and the heater cover 28.

[0075] like Figure 2 and Figure 4 As shown, a first mounting hole 224 is provided at the outer edge of the water tank 22, and a second mounting hole 281 is provided at a position corresponding to the first mounting hole 224 on the heater cover 28. The first mounting hole 224 and the second mounting hole 281 can be connected by bolts 5, thereby realizing the assembly between the water tank 22 and the heater cover 28.

[0076] like Figure 5 As shown, the heating core assembly 23 includes a heating core 231 and a plurality of heating modules 232. The heating core 231 includes a heating core body 2311 and a plurality of heating grooves 2312 connected to the heating core body 2311 on the side facing the water tank 22. The plurality of heating grooves 2312 protrude toward the water tank 22, thereby forming a heating flow channel between the heating core 231 and the water tank 22. The interior of the heating groove 2312 is hollow to form a heating module installation groove 23121. Each of the heating modules 232 is inserted into the corresponding heating module installation groove 23121 to realize the assembly of each heating module 232 on the heating core 231.

[0077] The plurality of heating grooves 2312 abut against the bottom wall of the water tank 22, and a sub-channel is formed between adjacent heating grooves 2312. The plurality of heating grooves 2312 are arranged in a staggered manner so that the plurality of sub-channels are connected in sequence to form the heating channel. At this time, the heating channel is generally in a curved serpentine shape (S-shaped winding shape).

[0078] The heating channel is composed of a plurality of sub-channels connected in sequence, thereby increasing the heating area of ​​the liquid, improving the heating efficiency, and making the liquid heated more evenly.

[0079] like Figure 1 As shown, a plurality of parallel ribs 221 are provided on the bottom wall of the water tank 22, and the top end of the heating tank 2312 is limited between two adjacent ribs 221, so that when the heating core 231 is inserted into the water tank, installation positioning can be achieved.

[0080] The power of the heating core assembly 23 can be adjusted according to the purpose of the heating device 10. When adjusting the power of the heating core assembly 23, the number and size of the heating modules 232 can be adjusted according to the layout of the vehicle to achieve the purpose of adjusting the power of the heating core assembly 23.

[0081] Specifically, if the heating device 10 is only used to heat the battery pack (such as Figure 7 The third embodiment shown in the figure), the heating core assembly 23 can use 1.5kw-3kw power to meet the battery heating requirements, and the overall size can be designed to be smaller; if the heating device 10 is only used for heating and defrosting the air conditioning system (such as Figure 6 The second embodiment shown in the figure), the heating core assembly 23 can use a power of 4kw-6kw; if the heating device 10 heats the battery and the air conditioning system at the same time (such as Figure 8As shown in the fourth embodiment, the power of the heating core assembly 23 should be designed to be 7kw-10kw, and the size should be relatively larger. At the same time, a three-way valve should be added to ensure that the heating device 10 can heat the battery system and the air-conditioning system at the same time.

[0082] like Figure 4 As shown, the heating module 232 is a PTC heating module.

[0083] The heater body also includes an electric control assembly 24, a high-voltage wiring harness assembly 27 and a low-voltage wiring harness assembly 26. The electric control assembly 24, the high-voltage wiring harness assembly 27 and the low-voltage wiring harness assembly 26 are located in the accommodating cavity. The high-voltage wiring harness assembly 27 and the low-voltage wiring harness assembly 26 are electrically connected to the electric control assembly 24, respectively. An IGBT (Insulated Gate Bipolar Transistor) module 25 is provided on the electric control assembly 24. The heating module 232 is electrically connected to the electric control assembly 24 to realize the internal circuit connection of the heater body.

[0084] After the heating device 10 receives the working instruction from the vehicle, the water pump 4 starts first to drive the liquid circulation, and then the heater 2 starts working, so as to avoid affecting the life of the water pump 4 and prevent the heater 2 from drying out. When the vehicle sends a stop signal, the heater 2 needs to be shut down first, and the water pump 4 needs to be run for a period of time before stopping the water pump 4 to ensure the heat dissipation and service life of the IGBT module 25.

[0085] The IGBT module 25 is disposed at the water inlet 21 of the heater. Since the temperature at the water inlet 21 of the heater is relatively low, the heat dissipation of the IGBT module 25 can be ensured, thereby increasing the product life.

[0086] The height of the heater water inlet 21 is lower than the height of the water pump water outlet 122 to ensure that the gas generated by the liquid being heated can be easily discharged upward.

[0087] like Figure 2 As shown, the auxiliary water tank 1 includes an auxiliary water tank cover 11 and an auxiliary water tank body 12. The auxiliary water tank cover 11 is installed on the top of the auxiliary water tank body 12 to form the water chamber inside the auxiliary water tank body 12. Preferably, the auxiliary water tank body 12 and the auxiliary water tank cover 11 can be connected by a plastic welding process such as friction welding.

[0088] like Figure 2 and Figure 3As shown, since the liquid heated by the heater 2 generates gas, if it is directly pumped away by the water pump 4, it will generate a lot of noise. Therefore, the water chamber can include a first water chamber 124, a second water chamber 125 and a third water chamber 126 that are connected in sequence, the first water chamber 124 and the second water chamber 125 are separated by a first partition 127, the second water chamber 125 and the third water chamber 126 are separated by a second partition 128, the first water chamber 124 is connected to the heater outlet 129 of the heater 2, and the third water chamber 126 is connected to the water pump inlet of the water pump 4.

[0089] At this time, the liquid heated by the heater 2 first enters the first water chamber 124 through the heater outlet 129, and then flows to the water pump inlet through the second water chamber 125 and the third water chamber 126 in sequence, and is pumped away by the water pump 4 to heat the air conditioner or the battery pack. When the liquid passes through the second water chamber 125, the gas generated by the liquid being heated can be discharged, thereby reducing the noise generated by the subsequent pumping by the water pump 4.

[0090] like Figure 3 As shown, the auxiliary water tank 1 further comprises a filling cap 111 , and a filling port 112 communicating with the water chamber is disposed on the auxiliary water tank cap 11 , and the filling cap 111 is detachably connected to the filling port 112 .

[0091] When the filling cap 111 is removed, liquid can be replenished into the water chamber through the filling cap 111 .

[0092] like Figure 2 and Figure 3 As shown, the auxiliary water tank 1 is made of transparent or translucent material, and a maximum liquid level line H and a minimum liquid level line L are provided on the auxiliary water tank 1. The current liquid level of the auxiliary water tank 1 can be intuitively seen through the maximum liquid level line H and the minimum liquid level line L. When the liquid level is between the maximum liquid level line H and the minimum liquid level line L, it is a reasonable value.

[0093] like Figure 2 and Figure 3 As shown, the filling cap 111 is threadedly connected to the filling port 112 , and a limiting post 113 is provided at the filling port 112 . Whether the filling cap 111 is tightened in place is determined when the edge of the filling cap 111 is screwed to contact the top end surface of the limiting post 113 .

[0094] The filling port 112 is provided with a pressure valve. When the pressure in the auxiliary water tank 1 changes, the pressure can be adjusted through the pressure valve to ensure that the pressure in the auxiliary water tank 1 is at a normal value.

[0095] like Figure 2 and Figure 3As shown, the filling port 112 is communicated with the second water chamber 125 , and an exhaust port 114 is provided on the side wall of the filling port 112 .

[0096] The gas generated by the heated liquid will generate a certain pressure in the auxiliary water tank 1 . At this time, the gas generated by the liquid can be discharged through the exhaust port 114 , thereby playing a role in regulating the pressure in the auxiliary water tank 1 .

[0097] like Figure 1 As shown, the heater water inlet 21 of the heater 2 is integrally formed with the auxiliary water tank body 12 to reduce the number of parts and simplify installation, while improving assembly efficiency, reducing vehicle maintenance costs, and improving the safety of the entire vehicle.

[0098] like Figure 1 As shown, the heating device 10 further includes a temperature sensor 3, and the temperature sensor 3 is used to detect the liquid temperature in the water chamber.

[0099] The auxiliary water tank body 12 is integrally formed with the temperature sensor installation port 121 communicating with the water chamber, and the temperature sensor 3 is installed in the temperature sensor installation port 121 to achieve the assembly of the auxiliary water tank 1 on the auxiliary water tank 1. Figure 1 As shown, the water pump 4 has a water pump cover 41 and a water pump outlet 122, and the water pump cover 41 and the water pump outlet 122 are integrally formed with the auxiliary water tank body 12 to reduce the number of parts and simplify installation, while improving assembly efficiency, reducing vehicle maintenance costs, and improving the safety of the entire vehicle.

[0100] The water pump 4 is an electric water pump, and the motor and impeller of the water pump 4 are accommodated inside the water pump cover 41 to achieve assembly of the motor and impeller of the water pump 4 .

[0101] Herein, the integral molding may be, for example, integral injection molding.

[0102] like Figure 1 As shown, the auxiliary water tank body 12 has a first side wall, a second side wall, a third side wall and a fourth side wall, the first side wall is opposite to the third side wall, the second side wall is opposite to the fourth side wall, the second side wall is connected between one side of the first side wall and one side of the third side wall, and the fourth side wall is connected between the other side of the first side wall and the other side of the third side wall, to form the auxiliary water tank body 12.

[0103] The heater 2 is integrated on the outside of the first side wall, and the water pump 4 and the heater water inlet 21 of the heater 2 are integrated on the outside of the second side wall. The temperature sensor installation port 121 is also integrally formed on the second side wall.

[0104] At least one of the second side wall, the third side wall and the fourth side wall is provided with a mounting bracket 123, that is, except for the first side wall used to form the water tank 22, the other side walls can be provided with a mounting bracket 123. Preferably, the second side wall, the third side wall and the fourth side wall are all provided with a mounting bracket 123. By providing the mounting bracket 123, the number of mounting fixing points for the heater 2 and the water pump 4 to be installed separately can be reduced, and the weight of the product can be greatly reduced after integration, and the assembly with the whole vehicle is more convenient.

[0105] Second embodiment

[0106] See also Figure 6 The second embodiment of the utility model provides a heating system, including an air conditioning heater core 20 and the heating device 10 of the above embodiment, the water outlet of the water pump 4 is connected to the water inlet of the air conditioning heater core 20 through a first pipeline 501, and the heater water inlet 21 of the heater 2 is connected to the water outlet of the air conditioning heater core 20 through a second pipeline 502.

[0107] The heating system provided by the second embodiment of the utility model connects the water outlet of the water pump 4 to the water inlet of the air conditioning heater core 20 through the first pipe 501, and the heater water inlet 21 of the heater 2 is connected to the water outlet of the air conditioning heater core 20 through the second pipe 502, thereby forming a circulation between the air conditioning heater core 20 and the heating device 10, thereby realizing heating and defrosting of the air conditioning system.

[0108] The heating system further includes a blower 30, and the blower 30 is used to blow the hot air generated by the air conditioning heater core 20 into the vehicle to achieve heating in the vehicle.

[0109] Third embodiment

[0110] See also Figure 7 The third embodiment of the utility model provides a heating system, including a battery pack P and the heating device 10 of the above embodiment, the water outlet of the water pump 4 is connected to the water inlet of the thermal management device of the battery pack P through the third pipeline 601, and the heater water inlet 21 of the heater 2 is connected to the water outlet of the thermal management device of the battery pack P through the fourth pipeline 602.

[0111] The heating system provided in the third embodiment of the utility model connects the water outlet of the water pump 4 to the water inlet of the thermal management device of the battery pack P through the third pipeline 601, and the heater water inlet 21 of the heater 2 is connected to the water outlet of the thermal management device of the battery pack P through the fourth pipeline 602, thereby forming a circulation between the battery pack P and the heating device 10 to achieve heating of the battery pack P.

[0112] Fourth embodiment

[0113] See also Figure 8 The fourth embodiment of the utility model provides a heating system, including an air conditioning heater core 20, a battery pack P and the heating device 10 of the above embodiment, the water outlet of the water pump 4 is respectively connected to the water inlet of the air conditioning heater core 20 and the water inlet of the thermal management device of the battery pack P, and the heater water inlet 21 of the heater 2 is respectively connected to the water outlet of the air conditioning heater core 20 and the water outlet of the thermal management device of the battery pack P.

[0114] The heating system provided by the fourth embodiment of the utility model connects the water outlet of the water pump 4 to the water inlet of the air conditioning heater core 20 and the water inlet of the thermal management device of the battery pack P, and the heater water inlet 21 of the heater 2 connects the water outlet of the air conditioning heater core 20 and the water outlet of the thermal management device of the battery pack P, so that the air conditioning heater core 20 is connected in parallel with the battery pack P, and a first cycle is formed between the air conditioning heater core 20 and the heating device 10, and a second cycle is formed between the battery pack P and the heating device 10. The first cycle is used to realize heating and defrosting of the air conditioning system, and the second cycle is used to realize heating of the battery pack P.

[0115] In this embodiment, the heating system further includes a three-way valve 40, the water outlet of the water pump 4 is connected to the first interface of the three-way valve 40 through the fifth pipeline 701, the second interface of the three-way valve 40 is connected to the water inlet of the air conditioning and heating core 20 through the sixth pipeline 702, the third interface of the three-way valve 40 is connected to the water outlet of the thermal management device of the battery pack P through the seventh pipeline 703, the heater water inlet 21 of the heater 2 is connected to the water outlet of the air conditioning and heating core 20 through the eighth pipeline 704, and the heater water inlet 21 of the heater 2 is connected to the water outlet of the thermal management device of the battery pack P through the ninth pipeline 705. By providing the three-way valve 40, the air conditioning and heating core 20 and the battery pack P are connected in parallel, so that the first cycle and the second cycle do not interfere with each other.

[0116] However, in other embodiments, the three-way valve 40 may be replaced by three solenoid valves.

[0117] An embodiment of the utility model provides a vehicle, comprising the heating device 10 of the above embodiment or the heating system of the above embodiment.

[0118] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating device, characterized in that: include: A secondary water tank, wherein the secondary water tank has a water chamber inside; A heater, the heater being integrated outside the auxiliary water tank and used for heating the liquid flowing through the heater and delivering the liquid to the water chamber; A water pump is used to pump liquid out of the water chamber.

2. The heating device according to claim 1, characterized in that: The water pump is integrated outside the auxiliary water tank.

3. The heating device according to claim 2, characterized in that: The auxiliary water tank is provided with a water pump inlet and a water pump outlet. The liquid pumped out of the water chamber flows into the water pump through the water pump inlet and flows out of the water pump through the water pump outlet.

4. The heating device according to claim 1, characterized in that: A temperature sensor is also included, and the temperature sensor is used to detect the temperature of the liquid in the water chamber.

5. The heating device according to claim 4, characterized in that: The temperature sensor is integrated outside the auxiliary water tank.

6. The heating device according to claim 4, characterized in that: The auxiliary water tank is provided with a temperature sensor installation opening which is in communication with the water chamber, and the temperature sensor is installed in the temperature sensor installation opening.

7. The heating device according to claim 1, characterized in that: The heater comprises a heater body and a water tank, wherein the water tank is integrated with the outer side wall of the auxiliary water tank, and the heater body is fixed to the outside of the auxiliary water tank and covers the water tank; The heater comprises a heater water inlet, a heater water outlet, and a heating channel connected between the heater water inlet and the heater water outlet. The heating channel is formed between the heater body and the water tank. The heater water outlet is connected to the water chamber.

8. The heating device according to claim 7, characterized in that: The water inlet of the heater is integrated in the water tank, and the water outlet of the heater is arranged on the bottom wall of the water tank.

9. The heating device according to claim 8, characterized in that: The height of the water outlet of the heater is greater than the height of the water inlet of the heater.

10. The heating device according to claim 7, characterized in that: The heater body comprises a heater cover and a heating core assembly, wherein the heater cover is sealed and connected to the outside of the auxiliary water tank and covers the water tank to form a receiving cavity therebetween, and the heating core assembly is located in the receiving cavity; The heating core assembly is used to heat the liquid flowing through the heating flow channel.

11. The heating device according to claim 10, characterized in that: The heating core assembly includes a heating core and a plurality of heating modules. The heating core includes a heating core body and a plurality of heating grooves connected to the heating core body on the side facing the water sink. The plurality of heating grooves protrude toward the water sink. The interior of the heating grooves is hollow to form a heating module mounting groove. Each heating module is inserted into the corresponding heating module mounting groove.

12. The heating device according to claim 11, characterized in that: The plurality of heating grooves are in contact with the bottom wall of the water groove, and sub-channels are formed between adjacent heating grooves. The plurality of heating grooves are staggered so that the plurality of sub-channels are connected in sequence to form the heating channel.

13. The heating device according to claim 12, characterized in that: A plurality of parallel convex ribs are arranged on the bottom wall of the water tank, and the top end of the heating tank is limited to be located between two adjacent convex ribs.

14. The heating device according to claim 11, characterized in that: The heating module is a PTC heating module; The heater body also includes an electronic control assembly, a high-voltage wiring harness assembly and a low-voltage wiring harness assembly, which are located in the accommodating cavity, and the high-voltage wiring harness assembly and the low-voltage wiring harness assembly are electrically connected to the electronic control assembly, respectively. An IGBT module is provided on the electronic control assembly, and the heating module is electrically connected to the electronic control assembly.

15. The heating device according to claim 1, characterized in that: The auxiliary water tank comprises an auxiliary water tank cover and an auxiliary water tank body, wherein the auxiliary water tank cover is mounted on the top of the auxiliary water tank body to form the water chamber inside the auxiliary water tank cover and the auxiliary water tank body.

16. The heating device according to claim 15, characterized in that: The water chamber includes a first water chamber, a second water chamber and a third water chamber which are connected in sequence, the first water chamber and the second water chamber are separated by a first partition, the second water chamber and the third water chamber are separated by a second partition, the first water chamber is connected to the heater outlet of the heater, and the third water chamber is connected to the water pump inlet of the water pump.

17. The heating device according to claim 16, characterized in that: The auxiliary water tank further comprises a filling cap, on which a filling port communicating with the water chamber is arranged, and the filling cap is detachably connected to the filling port.

18. The heating device according to claim 17, characterized in that: The filling port is communicated with the second water chamber, and an exhaust port is arranged on the side wall of the filling port.

19. The heating device according to claim 15, characterized in that: The heater water inlet of the heater is integrally formed with the auxiliary water tank body.

20. The heating device according to claim 15, characterized in that: Also includes a temperature sensor, the temperature sensor is used to detect the temperature of the liquid in the water chamber; A temperature sensor installation opening communicated with the water chamber is integrally formed on the auxiliary water tank body, and the temperature sensor is installed in the temperature sensor installation opening.

21. The heating device according to claim 15, characterized in that: The water pump has a water pump cover and a water pump outlet, and the water pump cover and the water pump outlet are integrally formed with the auxiliary water tank body; The water pump is an electric water pump, and the motor and impeller of the water pump are accommodated inside the water pump cover.

22. The heating device according to claim 15, characterized in that: The auxiliary water tank body has a first side wall, a second side wall, a third side wall and a fourth side wall, the first side wall is opposite to the third side wall, the second side wall is opposite to the fourth side wall, the second side wall is connected between the first side wall and the third side wall, and the fourth side wall is connected between the first side wall and the third side wall; The heater is integrated on the outside of the first side wall; The water pump is integrated outside the second side wall.

23. The heating device according to claim 22, characterized in that: A mounting bracket is disposed on at least one of the second side wall, the third side wall and the fourth side wall.

24. A heating system, characterized in that: It comprises an air conditioning heater core and a heating device as described in any one of claims 1-23, wherein the water outlet of the water pump is connected to the water inlet of the air conditioning heater core through a first pipeline, and the heater water inlet of the heater is connected to the water outlet of the air conditioning heater core through a second pipeline.

25. The heating system according to claim 24, characterized in that: It also includes a blower, which is used to blow the hot air generated by the air conditioning heater core into the vehicle.

26. A heating system, characterized in that: It comprises a battery pack and the heating device according to any one of claims 1 to 23, wherein the water outlet of the water pump is connected to the water inlet of the thermal management device of the battery pack through a third pipeline, and the heater water inlet of the heater is connected to the water outlet of the thermal management device of the battery pack through a fourth pipeline.

27. A heating system, characterized in that: It comprises an air conditioning heater core, a battery pack and a heating device as described in any one of claims 1 to 23, wherein the water outlet of the water pump is respectively connected to the water inlet of the air conditioning heater core and the water inlet of the thermal management device of the battery pack, and the heater water inlet of the heater is respectively connected to the water outlet of the air conditioning heater core and the water outlet of the thermal management device of the battery pack.

28. The heating system according to claim 27, characterized in that: It also includes a three-way valve, the water outlet of the water pump is connected to the first interface of the three-way valve through a fifth pipeline, the second interface of the three-way valve is connected to the water inlet of the air-conditioning heater core through a sixth pipeline, the third interface of the three-way valve is connected to the water outlet of the thermal management device of the battery pack through a seventh pipeline, the heater water inlet of the heater is connected to the water outlet of the air-conditioning heater core through an eighth pipeline, and the heater water inlet of the heater is connected to the water outlet of the thermal management device of the battery pack through a ninth pipeline.

29. A vehicle, characterized in that: It comprises the heating device according to any one of claims 1 to 23 or the heating system according to any one of claims 24 to 28.

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