Heating pump and thermal management system

Abstract

The utility model relates to a heating pump and a heat management system with the same. The heating pump comprises a pump shell, an impeller and a heater. The pump shell is provided with an inlet, an impeller chamber, a volute runner, a heating runner and an outlet. The impeller is contained in the impeller chamber, and when the impeller rotates, the fluid medium is pushed to flow to the outlet from the inlet through the impeller chamber, the volute flow channel and the heating flow channel in sequence. The heater heats the fluid medium flowing through the heating flow channel. A dispersion structure is arranged between the volute flow channel and the heating flow channel, and a fluid medium flowing out of the volute flow channel flows through the dispersion structure and is dispersedly introduced into the heating flow channel. When a fluid medium enters the heating flow channel from the impeller chamber through the volute flow channel, the dispersion structure arranged between the volute flow channel and the heating flow channel can enable the fluid medium flow flowing out of the volute flow channel to be dispersedly introduced into the heating flow channel. Therefore, the fluid medium entering the heating runner can be in full contact with the heater, so that the heater can heat the fluid more uniformly, and the heating efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of pumps, in particular to a heating pump and a thermal management system having the same. Background Art

[0002] Thermal management systems are commonly used in devices that require temperature regulation, such as vehicles and home appliances.

[0003] Taking vehicles as an example, a thermal management system is usually used to regulate the temperature of various parts of a vehicle, such as the engine temperature, battery temperature, and cabin temperature, to ensure that the corresponding parts are in a suitable temperature environment, thereby improving energy utilization, ensuring vehicle performance, and improving ride comfort.

[0004] Thermal management systems can include heat pumps that pump and heat a fluid medium. For example, in cold environments, the heated fluid can be used to raise the battery temperature, thereby increasing the vehicle's range. However, conventional heat pumps suffer from poor heating uniformity. Utility Model Content

[0005] In view of this, the present invention provides a heating pump and a thermal management system having the same, aiming to solve the problem of poor heating uniformity of conventional heating pumps.

[0006] In a first aspect, the utility model provides a heating pump. The heating pump includes a pump casing, an impeller, and a heater. The pump casing is provided with an inlet, an impeller chamber, a volute flow channel, a heating flow channel, and an outlet. The impeller is housed in the impeller chamber. When the impeller rotates, it pushes the fluid medium from the inlet, through the impeller chamber, the volute flow channel, and the heating flow channel in sequence, to the outlet. The heater heats the fluid medium flowing through the heating flow channel. A dispersion structure is provided between the volute flow channel and the heating flow channel, and the fluid medium flowing out of the volute flow channel flows through the dispersion structure and is dispersedly introduced into the heating flow channel.

[0007] The impeller rotates under the drive of a drive mechanism, such as a motor, to push the fluid medium into the inlet. As the fluid medium flows from the impeller chamber through the volute flow channel and into the heating flow channel, a dispersion structure provided between the volute flow channel and the heating flow channel allows the fluid medium flowing out of the volute flow channel to be dispersed and introduced into the heating flow channel, preventing the fluid medium from concentrating near the volute flow channel outlet. This ensures that the fluid medium entering the heating flow channel fully contacts the heater, allowing the heater to heat the fluid more evenly, thereby improving heating efficiency.

[0008] As a possible implementation method, the dispersion structure includes multiple guide ribs, and a guide groove is formed between any two adjacent guide ribs. The fluid medium flowing from the volute flow channel to the heating flow channel flows through the multiple guide grooves and is dispersed.

[0009] In the dispersed structure, guide grooves are formed between adjacent guide ribs, guiding the fluid flowing from the volute flow channel to the heating channel through multiple guide grooves and distributing them into the heating channel. This allows the heater to heat the fluid more evenly, thereby improving heating efficiency.

[0010] As a possible implementation method, a plurality of guide ribs are arranged from near to far starting from the outlet of the volute flow channel along the rotation direction of the impeller.

[0011] Multiple guide ribs are arranged from near to far along the rotation direction of the impeller, which is conducive to the fluid medium being smoothly guided from the outlet of the volute flow channel into the heating flow channel through the guide grooves formed between the guide ribs, so that the heater can heat the fluid more evenly, thereby improving the heating efficiency.

[0012] As a possible implementation manner, the widths of the multiple guide grooves gradually increase along the rotation direction.

[0013] The width of the multiple guide grooves gradually increases along the direction of rotation, further alleviating the uneven distribution of the fluid after it exits the volute flow channel due to the inherent flow characteristics of the fluid medium, and better preventing the fluid medium from concentrating near the outlet of the volute flow channel. This allows the fluid medium from the outlet of the volute flow channel to be more evenly distributed to the inlet of the heating flow channel, allowing the heater to heat the fluid more evenly and further improving heating efficiency.

[0014] As a possible implementation manner, the depths of the plurality of guide grooves gradually increase along the rotation direction.

[0015] The depth of the multiple guide grooves gradually increases along the direction of rotation, further alleviating the uneven distribution of the fluid after it exits the volute flow channel due to the inherent flow characteristics of the fluid medium, and better preventing the fluid medium from concentrating near the outlet of the volute flow channel. This allows the fluid medium from the outlet of the volute flow channel to be more evenly distributed to the inlet of the heating flow channel, allowing the heater to heat the fluid more evenly and further improving heating efficiency.

[0016] As a possible implementation manner, the distance between each guide rib and the rotation axis of the impeller gradually increases as it extends along the rotation direction.

[0017] As each guide rib extends along the direction of rotation and the distance from the rotation axis of the impeller gradually increases, it can adapt to the flow direction of the fluid medium and guide the fluid to flow radially outward while away from the outlet of the volute flow channel, which is conducive to better guiding the fluid medium into the heating flow channel in a uniform and dispersed manner, thereby improving the uniformity of fluid heating.

[0018] As a possible implementation manner, each guide rib is arc-shaped.

[0019] The guide ribs are arc-shaped, which can adapt to the flow trend of the fluid medium, and more smoothly guide the fluid medium flowing out of the volute flow channel into the heating flow channel more evenly, so that the heater can heat the fluid more evenly, thereby improving the heating efficiency.

[0020] As a possible implementation method, the pump casing includes a pump cover, the pump cover includes a cylindrical pump cover side wall and a pump cover end wall arranged at one end of the pump cover side wall, the pump cover end wall is provided with an inlet, the pump cover end wall at least partially forms an impeller chamber and a volute flow channel, and the dispersion structure is arranged on the inner side surface of the pump cover end wall.

[0021] The pump cover effectively seals the pump body, preventing the fluid from corroding other components and preventing impurities from entering the fluid and causing equipment failure. The fluid flows in through the inlet on the pump cover end wall, flows out of the volute flow channel under the impeller's push, and is evenly guided by the dispersion structure to the heating flow channel for heating before flowing out to the appropriate location.

[0022] As a possible implementation method, the pump casing also includes an isolation sleeve, which isolates the stator from the fluid medium. The isolation sleeve includes a cylindrical isolation sleeve side wall and an isolation sleeve end wall arranged at one end of the isolation sleeve side wall. The pump cover end wall and the isolation sleeve end wall together form an impeller chamber and a volute flow channel. The pump cover side wall at least partially surrounds the isolation sleeve side wall to form a heating flow channel between the two.

[0023] The isolation sleeve isolates the motor's stator from the fluid medium, preventing corrosion that could cause heat pump failure. The fluid medium flows from the impeller chamber and volute flow passage formed by the pump cover end wall and the isolation sleeve end wall to the heating flow passage formed between the pump cover side wall and the isolation sleeve side wall. The fluid medium drawn in through the inlet flows through the heating flow passage and is discharged from the outlet, achieving both pumping and heating of the fluid medium.

[0024] In a second aspect, the present invention provides a thermal management system, which includes the above-mentioned heat pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments.

[0026] It should be understood that the drawings only depict certain embodiments of the invention and are not to be considered limiting of its scope.

[0027] It should also be understood that the same or similar reference numerals are used throughout the drawings to identify the same or similar elements.

[0028] It should also be understood that the drawings are merely schematic and that the sizes and proportions of elements in the drawings are not necessarily accurate.

[0029] Figure 1Schematic diagram of the exploded structure of a heating pump according to an embodiment of the present invention.

[0030] Figure 2 for Figure 1 Schematic cross-sectional view of a heating pump in FIG.

[0031] Figure 3 for Figure 1 A partial cross-sectional view of the pump casing of the heating pump.

[0032] Figure 4 for Figure 1 Schematic diagram of the structure of the pump cover of the heating pump.

[0033] Reference numerals:

[0034] 10. Heating pump; 11. Pump casing; 111. Pump cover; 1111. Pump cover side wall; 1112. Pump cover end wall; 112. Pump seat; 113. Isolation sleeve; 1131. Isolation sleeve side wall; 1132. Isolation sleeve end wall; 114. Inlet; 115. Outlet; 116. Impeller chamber; 117. Volute flow channel; 118. Heating flow channel;

[0035] 12. Impeller; 13. Heater; 14. Motor; 141. Stator; 142. Rotor; 15. Guide rib; 16. Guide groove. DETAILED DESCRIPTION

[0036] Numerous specific details are set forth herein to provide a deeper understanding of the overall structure, function, and use of the embodiments described in the specification and illustrated in the accompanying drawings. Well-known operations, components, and elements are not described in detail to avoid making the description in the specification too redundant. The reader will understand that the embodiments described and illustrated herein are non-limiting examples, and thus will recognize that the specific structural and functional details mentioned herein are representative and illustrative. Modifications and changes may be made to these embodiments without departing from the scope of the claims.

[0037] The present invention provides a heat pump 10. The heat pump 10 can be used to pump a fluid medium and heat the pumped fluid medium. For example, the heat pump 10 can be used in a thermal management system, which can be applied to household appliances and automobiles, particularly new energy vehicles. For example, in the case of a new energy vehicle, the fluid medium can be a coolant.

[0038] To facilitate understanding, the overall structure of the heat pump 10 is first described below. It should be understood that the structure of the heat pump 10 is not limited to the following description. For example, one or more of the elements (components or parts) described below may be omitted or replaced, and the layout relationships between them may be altered.

[0039] refer to Figures 1 to 4 The heating pump 10 may include a pump housing 11 , an impeller 12 and a heater 13 .

[0040] The pump housing 11 can be used to house other components and may include an inlet 114, an impeller chamber 116, a volute flow passage 117, a heating flow passage 118, and an outlet 115. The inlet 114 and outlet 115 can be connected to piping in the thermal management system. During operation, the heat pump draws fluid through the inlet 114, enters the impeller chamber 116, and then flows through the volute flow passage 117 into the heating flow passage 118. After the temperature is adjusted, the fluid flows out of the outlet 115, thereby pumping and heating the fluid.

[0041] Continue to refer Figure 1 and Figure 2 As an example, the pump housing 11 may include a pump cover 111 and a pump base 112 mounted together. The pump cover 111 may be provided with an inlet 114, and the pump base 112 may be provided with an outlet 115. The pump cover 111 and the pump base 112 form a relatively closed internal space to prevent leakage of the fluid medium in the internal space and corrosion of other components, while also preventing external impurities from contaminating the fluid medium and causing equipment failure. In other examples, the pump housing 11 may also be integrally formed, or be composed of more parts assembled together.

[0042] Next reference Figure 2 As an example, the pump cover 111 may include a pump cover sidewall 1111 and a pump cover end wall 1112 provided at one end of the pump cover sidewall 1111. The pump cover end wall 1112 is provided with an inlet 114. For example, a pipe portion may be provided on the pump cover end wall 1112, and the inlet 114 may be defined by the pipe portion. The pump cover end wall 1112 may at least partially form an impeller chamber 116 and a volute flow channel 117. Preferably, the pump cover sidewall 1111 is cylindrical, in particular, it may be cylindrical. In some other examples, the pump cover sidewall 1111 may also be set to other shapes according to the needs of specific application scenarios, such as an elliptical cylinder and a square cylinder.

[0043] The motor 14 for driving the impeller 12 can be housed in the pump housing 11. The motor 14 can be used to convert electrical energy into mechanical energy and output the mechanical energy in the form of torque. By way of example only, the motor 14 may include a stator 141 and a rotor 142. When the motor 14 is in operation, the stator 141 generates a rotating magnetic field, which acts on the rotor 142 to form a magneto-electromotive force. Driven by this magneto-electromotive force, the rotor 142 rotates, thereby outputting torque to drive the impeller 12 to rotate.

[0044] Continue to refer Figure 2As a preferred example, the pump housing 11 may further include an isolation sleeve 113, which can isolate the stator 141 of the motor 14 from the fluid medium to prevent the fluid medium from corroding the stator 141 and causing a malfunction of the heat pump 10. The isolation sleeve 113 may include a cylindrical isolation sleeve sidewall 1131 and an isolation sleeve end wall 1132 disposed at one end of the isolation sleeve sidewall 1131. The pump cover endwall 1112 and the isolation sleeve endwall 1132 may together form the impeller chamber 116 and the volute flow channel 117. The pump cover sidewall 1111 may at least partially surround the isolation sleeve sidewall 1131 to form a heating flow channel 118 therebetween. In a preferred example, the isolation sleeve 113 may be integrally formed with the pump base 112. In other examples, the isolation sleeve 113 may be integrally formed with the pump cover 111, or the three may be integrally formed. The isolation sleeve 113 may also be separately formed and assembled with the pump cover 111 and the pump base 112.

[0045] It is understood that although the isolation sleeve 113 is provided in the above example, in other examples, the isolation sleeve 113 may not be provided, and sealing and protective measures may be taken on the motor 14. In this case, other structures of the heat pump need to be adjusted accordingly.

[0046] The impeller 12 can be housed in the impeller chamber 116 and is transmission-connected to the motor 14. The torque output by the motor 14 drives the impeller 12 to rotate so as to pump the fluid medium. Specifically, when the impeller 12 rotates driven by the motor 14, it pushes the fluid medium to enter from the inlet 114. As the impeller 12 rotates, the fluid medium is thrown to the outer edge of the impeller 12 to obtain kinetic energy, and then flows to the outlet 115 through the impeller chamber 116, the volute flow channel 117 and the heating flow channel 118 in sequence. At the same time, a low-pressure area is formed in the center of the impeller 12, causing the fluid medium to be sucked into the center of the impeller 12. In this way, relying on the continuous operation of the impeller 12, the fluid medium is continuously sucked in and discharged, thereby achieving the purpose of pumping the fluid medium.

[0047] The heater 13 may be located in the heating channel 118 between the isolation sleeve side wall 1131 and the pump cover side wall 1111 to heat the fluid medium flowing through the heating channel 118 .

[0048] A dispersion structure is provided between the volute flow channel 117 and the heating flow channel 118, and the fluid medium flowing out of the volute flow channel 117 flows through the dispersion structure and is dispersedly introduced into the heating flow channel 118. In a preferred example, the dispersion structure can be provided on the inner side surface of the pump cover end wall 1112, and more preferably, it is integrally formed on the inner side surface of the pump cover end wall 1112. Of course, in some other examples, the dispersion structure can also be separately formed and installed on the inner side surface of the pump cover end wall 1112. Alternatively, in some examples, the dispersion structure is provided on the side surface of the isolation sleeve end wall 1132 facing the pump cover end wall 1112, or is provided on both opposite side surfaces of the isolation sleeve end wall 1132 and the pump cover end wall 1112 (in this case, the dispersion structures on the two side surfaces may abut or may have a gap).

[0049] Driven by the motor 14, the impeller 12 rotates to push the fluid medium into the inlet 114 on the pump cover end wall 1112. When the fluid medium, driven by the impeller 12, flows from the impeller chamber 116 formed by the pump cover end wall 1112 and the isolation sleeve end wall 1132 through the volute flow channel 117 into the heating flow channel 118 formed between the pump cover side wall 1111 and the isolation sleeve side wall 1131, the dispersion structure set between the volute flow channel 117 and the heating flow channel 118 allows the fluid medium flowing out of the volute flow channel 117 to be dispersedly introduced into the heating flow channel 118, thereby preventing the fluid medium from concentrating near the outlet of the volute flow channel 117. In this way, the fluid medium entering the heating flow channel 118 can fully contact the heater 13, so that the heater 13 heats the fluid more evenly, thereby improving the heating efficiency and ensuring the thermal management effect. Then, after flowing through the heating space, the fluid medium is discharged from the outlet 115, achieving the pumping and heating of the fluid medium.

[0050] As an exemplary implementation, refer to Figures 2 to 4 The dispersion structure may include a plurality of guide ribs 15 , with guide grooves 16 formed between any two adjacent guide ribs 15 , and the fluid medium flowing from the volute flow channel 117 to the heating flow channel 118 flows through the plurality of guide grooves 16 and is dispersed.

[0051] The dispersed structure includes multiple guide ribs 15, with guide grooves 16 formed between adjacent guide ribs 15. This allows the fluid flowing from the volute flow passage 117 to the heating flow passage 118 to enter the heating flow passage 118 in a relatively dispersed manner through the multiple guide grooves 16. Consequently, the heater 13 can heat the fluid more evenly, thereby improving heating efficiency.

[0052] It is understandable that, although in the above example, the dispersion structure is implemented to include a plurality of guide ribs 15, and a guide groove 16 is formed between any two adjacent guide ribs 15, in other examples, the dispersion structure may also include only one guide rib 15, such as a wavy, or broken line, or broken line plus wavy line, or straight line plus wavy line and / or broken line or spiral guide rib 15 distributed between the volute flow channel 117 and the heating flow channel 118. In this case, the one guide rib 15 can buffer the flow rate of the fluid medium flowing out of the volute flow channel 117 to reduce the scouring of the pump cover side wall 1111 and the isolation sleeve 113, thereby increasing the service life of the pump casing 11. Then, a plurality of openings or holes can be arranged at intervals on the one guide rib 15 to facilitate the fluid medium to enter the heating flow channel 118 from different positions of the guide rib 15, while buffering the fluid medium, dispersing the fluid medium more evenly.

[0053] Continue to refer Figures 2 to 4 Furthermore, a plurality of guide ribs 15 may be arranged from the outlet of the volute flow channel 117 along the rotation direction of the impeller 12 from near to far.

[0054] Starting from the outlet of the volute flow channel 117, multiple guide ribs 15 are arranged from near to far along the rotation direction of the impeller 12, which is conducive to the fluid medium being promptly and smoothly guided from the outlet of the volute flow channel 117 through the guide grooves 16 formed between the guide ribs 15 into the heating flow channel 118 in a dispersed manner, so that the heater 13 can heat the fluid medium more evenly, thereby improving the heating efficiency.

[0055] It can be understood that although in the above example, multiple guide ribs 15 are set from the outlet of the volute flow channel 117 and arranged from near to far along the rotation direction of the impeller 12, in other examples, multiple guide ribs 15 can also be set from a position at a certain distance from the outlet of the volute flow channel 117 and arranged from near to far along the rotation direction of the impeller 12.

[0056] Continue to refer Figures 2 to 4 In a preferred embodiment, the width of the plurality of guide grooves 16 can gradually increase along the direction of rotation. The gradual increase in the width of the plurality of guide grooves 16 along the direction of rotation can further alleviate the uneven distribution of the fluid after it flows out of the volute flow channel 117 due to the flow characteristics of the fluid medium itself, and better prevent the fluid medium from concentrating near the outlet of the volute flow channel 117 after it flows out. In this way, the fluid medium from the outlet 115 of the volute flow channel 117 can be more evenly dispersed to the inlet of the heating flow channel 118, allowing the heater 13 to further evenly heat the fluid, further improving the heating efficiency.

[0057] It can be understood that although in the above example, the widths of multiple guide grooves 16 gradually increase along the rotation direction, in other embodiments, the widths of multiple guide grooves 16 can be the same, or the widths of some guide grooves 16 near the outlet 115 of the volute flow channel 117 are the same, and the widths of the remaining guide grooves 16 gradually increase along the rotation direction, or the widths of some guide grooves 16 near the outlet of the volute flow channel 117 have a first width, the guide groove 16 at the tail along the rotation direction has a third width, and the middle guide groove 16 has a second width, wherein the first width is less than the second width and the third width.

[0058] Continue to refer Figures 2 to 4 In a preferred example, the depths of the plurality of guide grooves 16 may gradually increase along the rotation direction.

[0059] The depth of the multiple guide grooves 16 gradually increases along the rotation direction, which can further alleviate the uneven distribution of the fluid after flowing out of the volute flow channel 117 due to the flow characteristics of the fluid medium itself, and better prevent the fluid medium from concentrating near the outlet of the volute flow channel 117 after flowing out. In this way, the fluid medium from the outlet of the volute flow channel 117 can be more evenly distributed to the inlet of the heating flow channel 118, so that the heater 13 can further evenly heat the fluid, further improving the heating efficiency.

[0060] It can be understood that although in the above example, the depths of multiple guide grooves 16 gradually increase along the rotation direction, in other embodiments, the depths of multiple guide grooves 16 can be the same for ease of processing, or the depths of some guide grooves 16 near the outlet of the volute flow channel 117 are the same, and the depths of the remaining guide grooves 16 gradually increase along the rotation direction, or the depths of some guide grooves 16 near the outlet of the volute flow channel 117 have a first depth, the guide groove 16 at the tail along the rotation direction has a third depth, and the middle guide groove 16 has a second depth, wherein the first depth < the second depth < the third depth.

[0061] Continue to refer Figures 2 to 4 In a preferred example, the distance between each guide rib 15 and the rotation axis of the impeller 12 gradually increases as the guide rib 15 extends along the rotation direction.

[0062] Each guide rib 15 is set to gradually increase its distance from the rotation axis of the impeller 12 as it extends in the direction of rotation, so as to adapt to the flow direction of the fluid medium and guide the fluid to flow radially outward while moving away from the outlet of the volute flow channel 117, which is conducive to better guiding the fluid medium to enter the heating flow channel 118 in a uniform and dispersed manner, thereby improving the uniformity of fluid heating.

[0063] It can be understood that although in the above example, the distance between each guide rib 15 and the rotation axis of the impeller 12 gradually increases as it extends along the rotation direction, in other embodiments, each guide rib 15 or part of the guide ribs 15 can also be set to extend in a direction with a certain angle to the rotation direction and the distance between it and the rotation axis of the impeller 12 gradually increases, or, the distance between each guide rib 15 and the rotation axis of the impeller 12 is the same as it extends along the rotation direction.

[0064] Continue to refer Figures 2 to 4 Furthermore, each guide rib 15 can be arc-shaped.

[0065] The curved shape of the guide ribs 15 can adapt to the flow trend of the fluid medium as it flows out of the volute flow channel 117, thereby smoothly guiding the fluid medium flowing out of the volute flow channel 117 into the heating flow channel 118 more evenly, allowing the heater 13 to heat the fluid more evenly, thereby improving heating efficiency. In addition, the curved shape of the guide ribs 15 facilitates demolding during casting.

[0066] It can be understood that although in the above examples, each guide rib 15 is configured to be arc-shaped, in other examples, some of the guide ribs 15 can be configured to be arc-shaped, for example, the guide ribs 15 near the volute flow channel 117 are arc-shaped, and the remaining guide ribs 15 are in other shapes, such as square, or all the guide ribs 15 are configured to be square.

[0067] The working principle of the heat pump is described below in conjunction with the preferred embodiment of the present utility model.

[0068] Driven by the motor 14, the impeller 12 rotates to push the fluid medium into the pump cover end wall 1112 through the inlet 114. When the fluid medium, driven by the impeller 12, flows from the impeller chamber 116 formed by the pump cover end wall 1112 and the isolation sleeve end wall 1132 through the volute flow channel 117 and into the heating flow channel 118 formed between the pump cover side wall 1111 and the isolation sleeve side wall 1131, the arc-shaped guide ribs 15 disposed between the volute flow channel 117 and the heating flow channel 118, starting from the outlet of the volute flow channel 117, disperse the fluid medium flowing out of the volute flow channel 117 through the various guide grooves 16 and introduce them into the heating flow channel 118, thereby preventing the fluid medium from concentrating near the outlet of the volute flow channel 117. Furthermore, the guide ribs 15 extend in the direction of rotation, and the distance from the rotation axis of the impeller 12 gradually increases, and the width and depth of the multiple guide grooves 16 gradually increase along the direction of rotation. In this way, the fluid medium flowing out of the volute flow channel 117 can be more evenly introduced into the heating flow channel 118, so that the fluid medium can more fully contact the heater 13, thereby allowing the heater 13 to heat the fluid medium more evenly, thereby improving the heating efficiency and ensuring the thermal management effect. Then, after flowing through the heating space, the fluid medium is discharged from the outlet 115, achieving the pumping and heating of the fluid medium.

[0069] The present invention also provides a thermal management system, which may include the heat pump 10 described above.

[0070] The thermal management system correspondingly has the corresponding technical effects of the above-mentioned heat pump 10, which will not be described in detail here.

[0071] The thermal management system provided by the present invention can be applied to occasions requiring thermal management, such as household appliances and vehicles, especially new energy vehicles.

[0072] It should be understood that the term "including" and its variations used in the present invention are open-ended, i.e., "including but not limited to." The term "according to" means "at least in part according to." The term "one embodiment" means "at least one embodiment," and the term "another embodiment" means "at least another embodiment."

[0073] It should be understood that although the terms “first” or “second” etc. may be used in the present invention to describe various elements, these elements are not defined by these terms, and these terms are only used to distinguish one element from another.

[0074] The scope of protection of the present invention is not limited to the above-mentioned embodiments. Any changes or substitutions that can be conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A heat pump comprising: The pump casing is provided with an inlet, an impeller chamber, a volute flow channel, a heating flow channel and an outlet; an impeller housed in the impeller chamber, which, when rotating, pushes the fluid medium from the inlet, sequentially through the impeller chamber, the volute flow channel, and the heating flow channel, to the outlet; and a heater for heating the fluid medium flowing through the heating flow channel; Its characteristics are: A dispersion structure is provided between the volute flow channel and the heating flow channel, and the fluid medium flowing out of the volute flow channel flows through the dispersion structure and is introduced into the heating flow channel in a dispersed manner.

2. The heat pump according to claim 1, characterized in that The dispersion structure includes a plurality of guide ribs, and a guide groove is formed between any two adjacent guide ribs. The fluid medium flowing from the volute flow channel to the heating flow channel flows through the plurality of guide grooves and is dispersed.

3. The heat pump according to claim 2, characterized in that The plurality of guide ribs are arranged from near to far along the rotation direction of the impeller starting from the outlet of the volute flow channel.

4. The heating pump according to claim 3, characterized in that The widths of the plurality of guide grooves gradually increase along the rotation direction.

5. The heating pump according to claim 3 or 4, characterized in that: The depths of the plurality of guide grooves gradually increase along the rotation direction.

6. The heat pump according to claim 3, characterized in that The distance between each guide rib and the rotation axis of the impeller gradually increases as the rib extends along the rotation direction.

7. The heating pump according to claim 6, characterized in that Each guide rib is arc-shaped.

8. The heat pump according to claim 1, characterized in that The pump casing includes a pump cover, which includes a cylindrical pump cover side wall and a pump cover end wall arranged at one end of the pump cover side wall. The pump cover end wall is provided with the inlet, and the pump cover end wall at least partially forms the impeller chamber and the volute flow channel. The dispersion structure is arranged on the inner side surface of the pump cover end wall.

9. The heating pump according to claim 8, characterized in that The pump casing also includes an isolation sleeve, which isolates the stator from the fluid medium. The isolation sleeve includes a cylindrical isolation sleeve side wall and an isolation sleeve end wall arranged at one end of the isolation sleeve side wall. The pump cover end wall and the isolation sleeve end wall together form the impeller chamber and the volute flow channel. The pump cover side wall at least partially surrounds the isolation sleeve side wall to form the heating flow channel between the two.

10. A thermal management system, characterized in that: Comprising a heat pump according to any one of claims 1 to 9.

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