Double eight-way valve integrated runner type heat pump module and using method thereof

Abstract

The invention discloses a double eight-way valve integrated runner type heat pump module and a using method thereof, and belongs to the technical field of new energy automobiles. Comprising a runner plate, a first water pump, a second water pump, a third water pump, a first eight-way valve, a second eight-way valve, a first temperature sensor, a second temperature sensor, a third temperature sensor, a first refrigerating machine, a second refrigerating machine, a water-cooling condenser and a PTC heater, wherein an integrated runner is arranged in the runner plate; the first water pump, the second water pump, the third water pump, the first eight-way valve, the second eight-way valve, the first temperature sensor, the second temperature sensor and the third temperature sensor are arranged on the upper layer; the first eight-way valve, the second eight-way valve, the first water pump, the second water pump, the third water pump, the first refrigerating machine, the second refrigerating machine, the water cooling condenser and the PTC heater all communicate with the integrated flow channel. On the basis of thermal management architecture development of the indirect heat pump system, thermal management of a whole vehicle electric drive system, a battery system and a passenger compartment system is coupled through integrated design, heat requirements of multiple systems are balanced, the waste heat utilization rate is increased, the whole vehicle energy consumption is reduced, and the endurance is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy vehicles, in particular to a double eight-way valve integrated flow channel type heat pump module and a use method thereof. BACKGROUND

[0002] Most of the existing heat management integrated modules adopt a single multi-way valve, and the upper part is integrated with motor, battery cooling components, and an expansion tank, which is arranged in the cabin and is suitable for passenger cars.

[0003] Most of the existing heat management integrated modules adopt a single multi-way valve design, in order to be compatible with multiple modes, the integrated flow channel is narrow, the flow resistance is large, the heat dissipation capacity is small, and it is relatively difficult to apply to the large heat dissipation requirements of commercial vehicle motors and batteries. At present, most of the heat management integrated modules integrate an expansion tank, and it is difficult to add and degas for heavy truck modules arranged in a low position.

[0004] In order to solve the above technical problems, the present application provides a double eight-way valve integrated flow channel type heat pump module and a use method thereof. SUMMARY

[0005] The purpose of the present application is to provide a double eight-way valve integrated flow channel type heat pump module and a use method thereof, to improve the waste heat utilization rate and save the energy consumption of the whole vehicle.

[0006] To achieve the above purpose, the present application provides the following scheme:

[0007] A double eight-way valve integrated flow channel type heat pump module, comprising a flow channel plate internally provided with an integrated flow channel, a first water pump, a second water pump, a third water pump, a first eight-way valve, a second eight-way valve, a first temperature sensor, a second temperature sensor and a third temperature sensor arranged on the upper layer of the flow channel plate, a first refrigerating machine, a second refrigerating machine, a water-cooled condenser and a PTC heater arranged on the lower layer of the flow channel plate, the first eight-way valve, the second eight-way valve, the first water pump, the second water pump, the third water pump, the first refrigerating machine, the second refrigerating machine, the water-cooled condenser and the PTC heater are all in communication with the integrated flow channel, and the integrated flow channel is arranged around the first eight-way valve and the second eight-way valve.

[0008] Preferably, the first water pump, the second water pump, the third water pump, the first eight-way valve, the second eight-way valve, the first temperature sensor, the second temperature sensor, the third temperature sensor, the first refrigerating machine, the second refrigerating machine, the water-cooled condenser and the PTC heater are all fixed on the flow channel plate by bolts.

[0009] Preferably, the first water pump is provided with a motor circuit, the second water pump is provided with a battery circuit, the third water pump is provided with a heater circuit, and the second eight-way valve is provided with a radiator circuit.

[0010] Preferably, the first chiller, the second chiller, the water-cooled condenser and the PTC heater are all communicated with the integrated flow channel through pipes.

[0011] Preferably, the first eight-way valve and the second eight-way valve are symmetrically arranged with the short edge axis of the flow channel plate as the center line, the first water pump and the third water pump are arranged close to the second eight-way valve and the first eight-way valve respectively, and the third water pump is arranged on the short edge axis of the flow channel plate.

[0012] Preferably, the water-cooled condenser is arranged in the middle area on the lower layer of the flow channel plate, the first chiller and the second chiller are arranged on the same side of the water-cooled condenser, and the PTC heater is arranged on the other side of the water-cooled condenser.

[0013] A method for using a double eight-way valve integrated flow channel type heat pump module, comprising the following steps:

[0014] Five main mode controls are completed by controlling the eight-way valve;

[0015] Mode one: water side circulation and agent side circulation are realized by controlling the state of the eight-way valve, and the functions of motor cooling, battery refrigeration and passenger compartment heating are completed;

[0016] Mode two: water side circulation and agent side circulation are realized by controlling the state of the eight-way valve, and the functions of motor cooling, battery cooling and passenger compartment heating are completed;

[0017] Mode three: water side circulation and agent side circulation are realized by controlling the state of the eight-way valve, and the functions of motor and battery cooling and passenger compartment heating are completed;

[0018] Mode four: water side circulation and agent side circulation are realized by controlling the state of the eight-way valve, and the functions of motor cooling, battery heating and passenger compartment heating are completed;

[0019] Mode five: water side circulation and agent side circulation are realized by controlling the state of the eight-way valve, and the functions of motor cooling, battery cooling and passenger compartment heating are completed.

[0020] Preferably, the principle of mode three is as follows:

[0021] Motor cooling and battery cooling series circulation: first water pump→motor and controller→first temperature sensor→second water pump→power battery→second temperature sensor→second chiller→radiator→first water pump;

[0022] Passenger compartment heating circulation: third water pump→PTC heater→water-cooled condenser→third temperature sensor→heating core→third water pump.

[0023] Preferably, the principle of mode four is as follows:

[0024] Motor cooling cycle: first water pump→motor and controller→first temperature sensor→first refrigerating machine→radiator→first water pump;

[0025] Battery and passenger cabin heating series cycle: second water pump→power battery→second temperature sensor→third temperature sensor→heating core→third water pump→PTC heater→second refrigerating machine→second water pump.

[0026] Preferably, the principle of the mode five is as follows:

[0027] Motor cooling cycle and battery cooling and passenger cabin heating series cycle: first water pump→motor and controller→first temperature sensor→first refrigerating machine→second water pump→power battery→second temperature sensor→third temperature sensor→heating core→third water pump→PTC heater→second refrigerating machine→first water pump.

[0028] The present application has the following technical effects relative to the prior art:

[0029] 1. The present application is developed based on the heat management architecture of an indirect heat pump system, and through integrated design, the heat management of the whole vehicle electric drive system, the battery system and the passenger cabin system is coupled, the balance of heat demand among multiple systems is realized, the waste heat utilization rate is improved, the whole vehicle energy consumption is saved, and the cruising range is increased. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 is the upper layer of the overall structure of the present application;

[0032] Figure 2 is the lower layer of the overall structure of the present application;

[0033] Figure 3 is the flow channel plate of the present application;

[0034] Figure 4 is the eight-way valve of the present application in four states and flow channel schematic diagram;

[0035] Figure 5 is the mode one of the present application;

[0036] Figure 6 is the mode two of the present application;

[0037] Figure 7 is the mode three of the present application;

[0038] Figure 8 is the mode four of the present application;

[0039] Figure 9 is the mode five of the present application.

[0040] Wherein, 1. third water pump, 2. third temperature sensor, 3. first eight-way valve, 4. second temperature sensor, 5. second water pump, 6. flow channel plate, 7. second eight-way valve, 8. first temperature sensor, 9. first water pump, 10. first refrigerating machine, 11. second refrigerating machine, 12. water-cooled condenser, 13. PTC heater. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0042] The purpose of the present application is to provide a double eight-way valve integrated flow channel type heat pump module and a use method thereof, so as to improve the waste heat utilization rate and save the energy consumption of the whole vehicle.

[0043] In order to make the above-mentioned purposes, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0044] Reference Figures 1 to 2The application discloses a double-eight-way valve integrated flow channel type heat pump module, which comprises a flow channel plate 6 internally provided with an integrated flow channel, a first water pump 9 arranged on the upper layer of the flow channel plate 6, a second water pump 5, a third water pump 1, a first eight-way valve 3, a second eight-way valve 7, a first temperature sensor 8, a second temperature sensor 4 and a third temperature sensor 2, a first refrigerating machine 10, a second refrigerating machine 11, a water-cooled condenser 12 and a PTC heater 13 arranged on the lower layer of the flow channel plate 6, wherein the first eight-way valve 3, the second eight-way valve 7, the first water pump 9, the second water pump 5, the third water pump 1, the first refrigerating machine 10, the second refrigerating machine 11, the water-cooled condenser 12 and the PTC heater 13 are all communicated with the integrated flow channel, and the integrated flow channel is arranged around the first eight-way valve 3 and the second eight-way valve 7.

[0045] Further, the application adopts the motor cooling, battery cooling and cab heating integrated flow channel plate 6 design, and the core components are directly installed on the flow channel plate 6, so that the problems of large occupied space and many components in the traditional distributed arrangement are solved, the use of internal communication pipelines is reduced, and the occupied space is greatly reduced.

[0046] Further, the first water pump 9, the second water pump 5, the third water pump 1, the first eight-way valve 3, the second eight-way valve 7, the first temperature sensor 8, the second temperature sensor 4, the third temperature sensor 2, the first refrigerating machine 10, the second refrigerating machine 11, the water-cooled condenser 12 and the PTC heater 13 are all fixed on the flow channel plate 6 through bolts; the above components are installed through bolts, so that the detachable installation of the components can be realized; when the components need to be replaced or repaired, the components only need to be disassembled and installed through bolts, so that the components are simple and convenient to use.

[0047] Reference Figure 1 The first water pump 9 is provided with a motor connecting circuit, the second water pump 5 is provided with a battery connecting circuit, the third water pump 1 is provided with a warm air connecting circuit, and the second eight-way valve 7 is provided with a radiator connecting circuit; the motor connecting circuit, the battery connecting circuit and the warm air connecting circuit are dispersedly arranged on different components, so that on one hand, external equipment can be conveniently connected, and on the other hand, the problem of inconvenient connection of external equipment caused by pipeline concentration can be avoided.

[0048] Further, the first chiller 10, the second chiller 11, the water-cooled condenser 12 and the PTC heater 13 are all communicated with the integrated flow channel through pipelines, and the first eight-way valve 3 and the second eight-way valve 7 are arranged between the pipelines and the integrated flow channel, and the conversion of different modes of the system is completed through the adjustment of the first eight-way valve 3 and the second eight-way valve 7.

[0049] Reference Figure 1 , the first eight-way valve 3 and the second eight-way valve 7 are symmetrically arranged with the short edge axis of the flow channel plate 6 as the middle line, the first water pump 9 and the third water pump 1 are respectively arranged close to the second eight-way valve 7 and the first eight-way valve 3, and the third water pump 1 is arranged on the short edge axis of the flow channel plate 6; the purpose of symmetrically arranging the first eight-way valve 3 and the second eight-way valve 7 with the short edge axis is to ensure that the first eight-way valve 3 and the second eight-way valve 7 uniformly and comprehensively cover the entire integrated flow channel, and avoid the problem that individual components and pipelines are too far away from the first eight-way valve 3 or the second eight-way valve 7; the first water pump 9 and the third water pump 1 are separately arranged on the periphery of the first eight-way valve 3 and the second eight-way valve 7, and the purpose is the same as the arrangement mode of the first eight-way valve 3 and the second eight-way valve 7, which is to uniformly and comprehensively cover the entire integrated flow channel.

[0050] Reference Figure 2 , the water-cooled condenser 12 is arranged in the middle area on the lower layer of the flow channel plate 6, the first chiller 10 and the second chiller 11 are arranged on the same side of the water-cooled condenser 12, and the PTC heater 13 is arranged on the other side of the water-cooled condenser 12; the water-cooled condenser 12 is a key component of the refrigeration system, responsible for cooling the high-temperature and high-pressure gaseous refrigerant discharged by the compressor into a liquid state, and taking away the heat through the cooling water; while the first chiller 10 and the second chiller 11 use the compressor to compress the refrigerant, release heat through the condenser, and then complete the refrigeration cycle by absorbing environmental heat through the evaporator, the cooperation of the water-cooled condenser 12 and the first chiller 10 and the second chiller 11 can complete the efficient refrigeration of the entire heat pump module, in addition, the selection of the positions of the PTC heater 13, the first chiller 10 and the second chiller 11 is to ensure the mutual cooperation between the components.

[0051] Reference Figure 3 , the flow channel plate 6 is internally integrated with the flow channel, realizing the water connection between the components and the component installation support, and the flow channel is distributed around the two eight-way valves.

[0052] Reference Figure 4 , the first eight-way valve 3 and the second eight-way valve 7 are both rotated by the internal valve core to present four states, and the double eight-way valves can have 16 combinations, which realize different functions according to the installation positions of the components.

[0053] Reference Figures 5 to 9 , a use method of the double eight-way valve integrated flow channel type heat pump module, comprising the following steps:

[0054] Five main mode controls are completed by controlling the eight-way valve;

[0055] Mode one: water side circulation and agent side circulation are realized by controlling the state of the eight-way valve, and the functions of motor cooling, battery refrigeration and passenger cabin heating are completed;

[0056] Mode two: water side circulation and agent side circulation are realized by controlling the state of the eight-way valve, and the functions of motor cooling, battery cooling and passenger cabin heating are completed;

[0057] Mode three: water side circulation and agent side circulation are realized by controlling the state of the eight-way valve, and the functions of motor and battery cooling and passenger cabin heating are completed;

[0058] Mode four: water side circulation and agent side circulation are realized by controlling the state of the eight-way valve, and the functions of motor cooling, battery heating and passenger cabin heating are completed;

[0059] Mode five: water side circulation and agent side circulation are realized by controlling the state of the eight-way valve, and the functions of motor cooling, battery cooling and passenger cabin heating are completed.

[0060] Mode one realizes the functions of motor cooling, battery refrigeration and passenger cabin heating (battery heat extraction) through water side circulation and agent side circulation, and the state of the eight-way valve and the system principle are as shown in Figure 5 .

[0061] 1. Water side circulation

[0062] Motor cooling circulation: first water pump 9→motor and controller→first temperature sensor 8→first refrigeration machine 10→radiator→first water pump 9.

[0063] Battery refrigeration circulation: second water pump 5→power battery→second temperature sensor 4→second refrigeration machine 11→second water pump 5.

[0064] Passenger cabin heating circulation (battery heat extraction): third water pump 1→PTC heater 13→water-cooled condenser 12→third temperature sensor 2→heating core→third water pump 1.

[0065] 2. Agent side circulation

[0066] Branch one: compressor→water-cooled condenser 12→stop valve→condenser→evaporator→liquid reservoir→compressor.

[0067] Branch two: compressor→water-cooled condenser 12→stop valve→condenser→second refrigeration machine 11→liquid reservoir→compressor.

[0068] Mode two realizes the functions of motor cooling, battery cooling and passenger cabin heating (motor heat extraction) through water side circulation and agent side circulation, and the state of the eight-way valve and the system principle are as shown in Figure 6 .

[0069] 1. Water side circulation

[0070] Motor cooling circulation: First water pump 9→Motor and controller→First temperature sensor 8→First chiller 10→Radiator→First water pump 9.

[0071] Battery cooling circulation: Second water pump 5→Power battery→Second temperature sensor 4→Second chiller 11→Second water pump 5.

[0072] Passenger cabin heating circulation (Battery heat extraction): Third water pump 1→PTC heater 13→Water-cooled condenser 12→Third temperature sensor 2→Heating core→Third water pump 1.

[0073] 2. Reagent side circulation

[0074] Compressor→Water-cooled condenser 12→First chiller 10→Check valve→Liquid reservoir→Compressor.

[0075] Mode three realizes the functions of motor and battery cooling and passenger cabin heating through water side circulation, the state of eight-way valve and system principle are shown in Figure 7 .

[0076] 1. Water side circulation

[0077] Motor and battery cooling series circulation: First water pump 9→Motor and controller→First temperature sensor 8→Second water pump 5→Power battery→Second temperature sensor 4→Second chiller 11→Radiator→First water pump 9.

[0078] Passenger cabin heating circulation (Battery heat extraction): Third water pump 1→PTC heater 13→Water-cooled condenser 12→Third temperature sensor 2→Heating core→Third water pump 1.

[0079] Mode four realizes the functions of motor cooling, battery heating and passenger cabin heating through water side circulation, the state of eight-way valve and system principle are shown in Figure 8 .

[0080] Motor cooling circulation: First water pump 9→Motor and controller→First temperature sensor 8→First chiller 10→Radiator→First water pump 9.

[0081] Battery and passenger cabin heating series circulation: Second water pump 5→Power battery→Second temperature sensor 4→Third temperature sensor 2→Heating core→Third water pump 1→PTC heater 13→Second chiller 11→Second water pump 5.

[0082] Mode five realizes the functions of motor cooling, battery cooling and passenger cabin heating through water side circulation, the state of eight-way valve and system principle are shown in Figure 9 .

[0083] Motor cooling cycle and battery cooling and passenger cabin heating series cycle (waste heat recovery): first water pump 9→ motor and controller→ first temperature sensor 8→ first refrigerating machine 10→ second water pump 5→ power battery→ second temperature sensor 4→ third temperature sensor 2→ warm air core body→ third water pump 1→ PTC heater 13→ second refrigerating machine 11→ first water pump 9.

[0084] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above example is only used for helping to understand the method of the present application and its core idea; meanwhile, for the general technical personnel in the field, the specific implementation manners and application ranges will be changed according to the idea of the present application. In conclusion, the content of the present specification should not be understood as the limitation of the present application.

Claims

1. A double eight-way valve integrated flow channel heat pump module, characterized in that: It includes a flow channel plate with an integrated flow channel arranged inside, a first water pump, a second water pump, a third water pump, a first eight-way valve, a second eight-way valve, a first temperature sensor, a second temperature sensor and a third temperature sensor arranged on the upper layer of the flow channel plate, a first refrigerator, a second refrigerator, a water-cooled condenser and a PTC heater arranged on the lower layer of the flow channel plate, the first eight-way valve, the second eight-way valve, the first water pump, the second water pump, the third water pump, the first refrigerator, the second refrigerator, the water-cooled condenser and the PTC heater are all connected to the integrated flow channel, and the integrated flow channel is arranged around the first eight-way valve and the second eight-way valve.

2. The double eight-way valve integrated flow channel heat pump module according to claim 1, characterized in that: The first water pump, the second water pump, the third water pump, the first eight-way valve, the second eight-way valve, the first temperature sensor, the second temperature sensor, the third temperature sensor, the first refrigerator, the second refrigerator, the water-cooled condenser and the PTC heater are all fixed to the flow channel plate by bolts.

3. The double eight-way valve integrated flow channel heat pump module according to claim 1, characterized in that: The first water pump is provided with a motor connection circuit, the second water pump is provided with a battery connection circuit, the third water pump is provided with a heater connection circuit, and the second eight-way valve is provided with a radiator connection circuit.

4. The double eight-way valve integrated flow channel heat pump module according to claim 1, characterized in that: The first refrigerator, the second refrigerator, the water-cooled condenser and the PTC heater are all connected to the integrated flow channel through pipelines.

5. The double eight-way valve integrated flow channel heat pump module according to claim 1, characterized in that: The first eight-way valve and the second eight-way valve are symmetrically arranged with the short side axis of the flow channel plate as the midline, the first water pump and the third water pump are respectively arranged close to the second eight-way valve and the first eight-way valve, and the third water pump is arranged on the short side axis of the flow channel plate.

6. The double eight-way valve integrated flow channel heat pump module according to claim 1, characterized in that: The water-cooled condenser is arranged in the middle area of ​​the lower layer of the flow channel plate, the first refrigerator and the second refrigerator are arranged on the same side of the water-cooled condenser, and the PTC heater is arranged on the other side of the water-cooled condenser.

7. A method for using a double eight-way valve integrated flow channel heat pump module, characterized in that: The double eight-way valve integrated flow channel heat pump module according to any one of claims 1 to 6 comprises the following steps: Five main mode controls are achieved by controlling the eight-way valve; Mode 1: By controlling the state of the eight-way valve, water-side circulation and agent-side circulation are realized, completing the functions of motor cooling, battery cooling and passenger compartment heating; Mode 2: By controlling the state of the eight-way valve, water-side circulation and agent-side circulation are achieved, completing the functions of motor cooling, battery cooling, and passenger compartment heating; Mode 3: Water and fuel circulation are achieved by controlling the state of the eight-way valve, completing the functions of cooling the motor and battery and heating the passenger compartment; Mode 4: Water and fuel circulation are achieved by controlling the state of the eight-way valve, completing motor cooling, battery heating, and passenger compartment heating functions. Mode 5: By controlling the state of the eight-way valve, water-side circulation and agent-side circulation are realized to complete the functions of motor cooling, battery cooling and passenger compartment heating.

8. The method for using the double eight-way valve integrated flow channel heat pump module according to claim 7, characterized in that: The principle of Mode 3 is as follows: Motor cooling and battery cooling are in series circulation: first water pump → motor and controller → first temperature sensor → second water pump → power battery → second temperature sensor → second refrigerator → radiator → first water pump; Passenger compartment heating cycle: third water pump → PTC heater → water-cooled condenser → third temperature sensor → heater core → third water pump.

9. The method for using the double eight-way valve integrated flow channel heat pump module according to claim 7, characterized in that: The principle of the fourth mode is as follows: Motor cooling cycle: first water pump → motor and controller → first temperature sensor → first refrigerator → radiator → first water pump; The battery and passenger compartment heating are connected in series: second water pump → power battery → second temperature sensor → third temperature sensor → heater core → third water pump → PTC heater → second refrigerator → second water pump.

10. The method for using the double eight-way valve integrated flow channel heat pump module according to claim 7, characterized in that: The principle of the fifth mode is as follows: The motor cooling cycle, battery cooling and passenger compartment heating are connected in series: first water pump → motor and controller → first temperature sensor → first refrigerator → second water pump → power battery → second temperature sensor → third temperature sensor → heater core → third water pump → PTC heater → second refrigerator → first water pump.

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