Heating pump and vehicle thermal management system
By setting a fixed impeller at the outlet of the driving impeller of the heat pump, the automatic dispersion of fluid into the flow channel and heating chamber is achieved, which solves the problem of low heating efficiency due to large fluid flow resistance in existing heat pumps and improves heating efficiency.
Patent Information
- Application Number
- CN202420918479.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-04-29
AI Technical Summary
In existing heating pumps, the flow resistance is large after the fluid enters the flow channel, resulting in low heating efficiency.
A heating pump is designed, by setting a fixed impeller at the outlet of the driving impeller, the fluid automatically enters the flow channel and disperses into the heating chamber, thereby reducing flow resistance and improving heating uniformity.
It effectively reduces the flow resistance of fluid entering the heating chamber, improves the heat uniformity of the fluid, and thus improves the heating efficiency of the heating pump.
Smart Images
Figure CN222558785U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, and in particular to a heating pump and a vehicle thermal management system. Background Art
[0002] During vehicle use, especially in cold environments, the battery temperature needs to be increased to ensure its performance, and a heat pump is usually used to achieve thermal management of the vehicle. However, the commonly used heat pumps currently have a large flow resistance after the fluid enters the flow channel, resulting in low heating efficiency of the heat pump. Utility Model Content
[0003] In order to solve the above technical problems, the utility model proposes a heating pump and a vehicle thermal management system to solve the problem of low heating efficiency of the heating pump due to large flow resistance after the fluid enters the flow channel.
[0004] In order to achieve one of the purposes of the utility model mentioned above, an embodiment of the utility model provides a heating pump, including a shell, a cover body, a pump body and a guide assembly, the pump body is arranged in the shell, the cover body is arranged at one end of the shell, the pump body includes a stator, a rotor and a heating assembly, the guide assembly includes a moving impeller connected to the rotor, the moving impeller is rotatably arranged at the water inlet of the cover body, a heating chamber is formed between the pump body and the shell, the heating assembly is accommodated in the heating chamber, the guide assembly also includes a stator impeller arranged at the water outlet of the moving impeller, the stator impeller is located between the pump body and the cover body, the stator impeller has a plurality of guide channels, and the guide channels connect the water outlet of the moving impeller and the heating chamber.
[0005] As a further improvement of an embodiment of the utility model, the fixed impeller is integrally arranged at one end of the cover body facing the pump body;
[0006] Alternatively, the stator impeller is integrally arranged at one end of the pump body facing the cover body.
[0007] As a further improvement of one embodiment of the utility model, the pump body includes an isolation sleeve, which includes a first cylindrical wall, a second cylindrical wall and a bottom wall. The first cylindrical wall and the second cylindrical wall are coaxially arranged with the impeller. The first cylindrical wall is located on the outer periphery of the second cylindrical wall. The bottom wall connects the first cylindrical wall and the second cylindrical wall and is close to the cover body. The stator impeller is integrally arranged at one end of the bottom wall facing the cover body.
[0008] As a further improvement of an embodiment of the utility model, the stator impeller includes a first guide portion and a second guide portion that are connected to each other, the first guide portion is integrally arranged on the cover body, the second guide portion is integrally arranged on the pump body, the first guide portion has a plurality of first flow grooves, the second guide portion has a plurality of second flow grooves, the plurality of first flow grooves are connected one by one with the plurality of second flow grooves to form the plurality of guide channels.
[0009] As a further improvement of an embodiment of the utility model, the first guide portion includes a plurality of first guide ribs arranged at intervals along the circumference of the impeller, and a first flow groove is formed between any two adjacent first guide ribs; the second guide portion includes a plurality of second guide ribs arranged at intervals along the circumference of the impeller, and a second flow groove is formed between any two adjacent second guide ribs; the plurality of first guide ribs are connected one by one with the plurality of second guide ribs.
[0010] As a further improvement of one embodiment of the utility model, the stator impeller includes a diverter and a guide ring connected to the diverter, the diverter is arranged on the side of the guide ring close to the cover body, the diverter has a plurality of third flow grooves, the guide ring includes a first ring and a second ring coaxially sleeved, the first ring is located on the outer periphery of the second ring, a plurality of fourth flow grooves are provided between the first ring and the second ring, the plurality of third flow grooves are connected one by one with the plurality of fourth flow grooves and are interconnected to form the plurality of guide channels.
[0011] As a further improvement of one embodiment of the utility model, the diverter member includes an annular plate and a plurality of diverter ribs arranged at circumferential intervals along the annular plate, the plurality of diverter ribs are connected to a side surface of the annular plate facing the guide ring, and a third flow groove is formed between any two adjacent diverter ribs.
[0012] As a further improvement of an embodiment of the utility model, a plurality of guide plates are arranged between the first ring and the second ring, and the plurality of guide plates are connected one by one with the plurality of diverter ribs. Each of the guide plates is inclined along the circumference of the first ring away from the corresponding diverter rib in a direction away from the diverter member, and a fourth flow groove is formed between any two adjacent guide plates.
[0013] As a further improvement of an embodiment of the utility model, the plurality of guide channels are arranged spirally at intervals along the circumference of the impeller, and along the radial direction of the impeller, each of the guide channels gradually widens from the inside to the outside.
[0014] In order to achieve one of the above purposes of the utility model, an embodiment of the utility model further provides a vehicle thermal management system, including the heat pump as described above.
[0015] Compared with the prior art, the utility model has the following beneficial effects: the heating pump and vehicle thermal management system of the utility model, by arranging a fixed impeller at the water outlet of the moving impeller, allows the fluid to enter the guide channel after being automatically discharged from the water outlet of the impeller, and then dispersed into the heating chamber through multiple guide channels, which can not only reduce the flow resistance of the fluid entering the heating chamber, but also improve the heating uniformity of the fluid, thereby improving the heating efficiency of the heating pump. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings provided herein are used to further illustrate the understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0017] Figure 1 It is a cross-sectional schematic diagram of a heating pump according to an implementation mode of Example 1 of the present utility model;
[0018] Figure 2 for Figure 1 A cross-sectional view from another angle;
[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the middle shell;
[0020] Figure 4 for Figure 1 A schematic diagram of the structure of the middle isolation sleeve;
[0021] Figure 5 It is a cross-sectional schematic diagram of a heating pump according to another embodiment of Example 1 of the present utility model;
[0022] Figure 6 for Figure 5 A cross-sectional view from another angle;
[0023] Figure 7 for Figure 5 A schematic diagram of the structure of the middle isolation sleeve;
[0024] Figure 8 for Figure 7 A schematic diagram of the structure of the middle isolation sleeve from another angle;
[0025] Fig. 9 It is a cross-sectional schematic diagram of a heating pump according to Example 2 of the present utility model;
[0026] Fig.10 for Fig. 9 A cross-sectional view from another angle;
[0027] Fig.11 for Fig. 9 A schematic diagram of the structure of the middle shell;
[0028] Fig.12 for Fig. 9 A schematic diagram of the structure of the middle isolation sleeve;
[0029] Fig.13 for Fig.12 A schematic diagram of the structure of the middle isolation sleeve from another angle;
[0030] Fig.14 It is a cross-sectional schematic diagram of a heating pump according to Embodiment 3 of the present utility model;
[0031] Fig.15 for Fig.14 Schematic diagram of the structure of the stator impeller;
[0032] Fig.16 for Fig.15 Schematic diagram of the structure of the stator impeller from another angle.
[0033] 100. Heating pump; 1. Shell; 2. Cover; 21. Water inlet; 3. Pump body; 31. Stator; 32. Rotor; 33. Heating assembly; 34. Isolation sleeve; 341. First cylindrical wall; 342. Second cylindrical wall; 343. Bottom wall; 4. Moving impeller; 5. Fixed impeller; 51. Guide channel; 52. Fixed blade; 53. First guide part; 531. First flow groove; 532. First guide rib; 54. Second guide part; 541. Second flow groove; 542. Second guide rib; 55. Diverter; 551. Third flow groove; 552. Annular plate; 553. Diverter rib; 56. Guide ring; 561. First ring; 562. Second ring; 563. Fourth flow groove; 564. Guide plate; 6. Heating chamber; 61. First chamber; 62. Second chamber; 7. Drainage outlet. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution of this application will be clearly and completely described in combination with the specific embodiments of this application and the corresponding drawings. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0035] In various drawings of the present invention, for the convenience of illustration, some dimensions of structures or parts are enlarged relative to other structures or parts, and therefore, are only used to illustrate the basic structure of the subject matter of the present invention.
[0036] It should be understood that, unless otherwise expressly specified and limited, in the description of the present invention, the terms "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0037] Example 1
[0038] The utility model proposes a vehicle thermal management system, comprising a heating pump 100, through which thermal management of the vehicle can be achieved.
[0039] See also Figures 1 to 14 The heating pump 100 includes a shell 1, a cover body 2, a pump body 3 and a guide assembly. The pump body 3 is arranged in the shell 1, the cover body 2 is arranged at one end of the shell 1, the pump body 3 includes a stator 31, a rotor 32 and a heating assembly 33, the guide assembly includes an impeller 4 connected to the rotor 32, the impeller 4 is rotatably arranged at the water inlet 21 of the cover body 2, a heating chamber 6 is formed between the pump body 3 and the shell 1, and the heating assembly 33 is accommodated in the heating chamber 6.
[0040] The guide assembly also includes a fixed impeller 5 disposed at the water outlet of the impeller 4, wherein the fixed impeller 5 has a variety of structural forms, including 5a, 5b, 5c, and 5d, and the fixed impeller 5 is located between the pump body 3 and the cover body 2. The fixed impeller 5 has a plurality of guide channels 51, and the guide channels 51 connect the water outlet of the impeller 4 and the heating chamber 6. The heating chamber 6 here is also a flow channel, and the fluid enters the guide channel 51 after being discharged from the water outlet of the impeller 4, and is dispersed into the heating chamber 6 through the plurality of guide channels 51.
[0041] In this way, by arranging the fixed impeller 5 at the water outlet of the moving impeller 4, the fluid is automatically discharged from the water outlet of the impeller 4 and enters the guide channel 51, and is dispersed into the heating chamber 6 through multiple guide channels 51. This can not only reduce the flow resistance of the fluid entering the heating chamber 6, but also improve the uniformity of heating of the fluid, thereby improving the heating efficiency of the heating pump 100.
[0042] Of course, the water inlet 21 here is only used to describe the inlet of the fluid, and the fluid here can be water or other fluids that can be used for heating; the water outlet is also the same, and is only used to describe the outlet where the fluid is discharged from the automatic impeller 4.
[0043] Furthermore, the fixed impeller 5 surrounds the movable impeller 4 , so that the fluid can enter the heating chamber 6 along all directions of the circumference of the movable impeller 4 after being discharged from the water outlet of the impeller 4 .
[0044] See also Figure 3 ,as well as Figures 7 and 8 In this embodiment, the stator impeller 5 includes a plurality of stator blades 52 arranged at intervals along the circumference of the impeller 4 , and a guide channel 51 is formed between any two adjacent stator blades 52 .
[0045] Preferably, the plurality of fixed blades 52 are arranged spirally at intervals along the circumference of the impeller 4, and correspondingly, the plurality of guide channels 51 are also arranged spirally at intervals along the circumference of the impeller 4, so that the fluid can flow more smoothly in the guide channels 51 and reduce flow resistance.
[0046] Furthermore, along the radial direction of the impeller 4, the distance between adjacent fixed blades 52 gradually increases from the inside to the outside, and correspondingly, each guide channel 51 gradually widens from the inside to the outside, thereby further improving the guide effect of the guide channel 51 and reducing the flow resistance.
[0047] Combination Figures 1 to 4 In one embodiment, the stator impeller 5 a is integrally disposed at one end of the cover body 2 facing the pump body 3 .
[0048] Combination Figures 5 to 8 In another embodiment, the stator impeller 5 b may also be integrally provided at one end of the pump body 3 facing the cover body 2 .
[0049] Both implementations can greatly simplify the structure of the heating pump 100 while reducing the flow resistance of the fluid entering the heating chamber 6 .
[0050] See also Figure 1 to Figure 2 ,as well as Figures 5 and 6 Furthermore, the pump body 3 includes an isolation sleeve 34, which includes a first cylindrical wall 341, a second cylindrical wall 342 and a bottom wall 343. The first cylindrical wall 341 and the second cylindrical wall 342 are coaxially arranged with the impeller 4. The first cylindrical wall 341 is located on the outer periphery of the second cylindrical wall 342. The bottom wall 343 connects the first cylindrical wall 341 and the second cylindrical wall 342 and is close to the cover body 2. The fixed impeller 5b is integrally arranged at one end of the bottom wall 343 facing the cover body 2.
[0051] Preferably, the heating component 33 is configured in a tubular shape, which not only increases the heating area of the heating component 33, thereby improving the heating efficiency of the heating pump 100, but also facilitates processing.
[0052] In this embodiment, the drain port 7 of the heating pump 100 is disposed on the cover 2, so that the contact area between the fluid and the heating assembly 33 can be increased, thereby improving the heating efficiency. In other embodiments, the drain port 7 of the heating pump 100 can also be disposed on the housing 1, and the heating chamber 6 is connected to the guide channel 51 and the drain port 7. Of course, the drain port 7 here is only used to describe the outlet of the fluid from the heating pump 100, and the fluid here can be water or other fluids that can be used for heating.
[0053] Preferably, the heating component 33 is located between the pump body 3 and the shell 1, and the heating component 33 divides the heating chamber 6 into a first chamber 61 and a second chamber 62. The first chamber 61 is located between the heating component 33 and the pump body 3, and the second chamber 62 is located between the heating component 33 and the shell 1, and the second chamber 62 is located downstream of the first chamber 61. That is, after the fluid enters the impeller 4 through the water inlet 21, it is discharged from the water outlet of the automatic impeller 4 and enters the guide channel 51, and then flows through the first chamber 61 and the second chamber 62 in sequence, and then discharges the heating pump 100 from the water outlet 7.
[0054] Specifically, one end of the heating component 33 close to the cover body 2 is connected to the cover body 2 , and a gap is formed between one end of the heating component 33 away from the cover body 2 and the housing 1 so that the fluid can flow from the first cavity 61 to the second cavity 62 .
[0055] Example 2
[0056] The difference between this embodiment and the first embodiment lies only in the structure of the stator impeller 5 and the connection structure with the pump body 3 and the casing 1 .
[0057] See also Figures 9 to 13 Specifically, in this embodiment, the stator impeller 5c includes a first guide portion 53 and a second guide portion 54 that are connected to each other. The first guide portion 53 is integrally arranged on the cover body 2, and the second guide portion 54 is integrally arranged on the pump body 3. The first guide portion 53 has a plurality of first flow grooves 531, and the second guide portion 54 has a plurality of second flow grooves 541. A first flow groove 531 is connected with a second flow groove 541 to form a guide channel 51, and a plurality of first flow grooves 531 are connected with a plurality of second flow grooves 541 one by one to form a plurality of guide channels 51.
[0058] See also Fig.11 Further, the first guide portion 53 includes a plurality of first guide ribs 532 arranged at intervals along the circumference of the impeller 4, and a first flow groove 531 is formed between any two adjacent first guide ribs 532. Figure 12 to Figure 13 The second guide portion 54 includes a plurality of second guide ribs 542 arranged at intervals along the circumference of the impeller 4, a second flow groove 541 is formed between any two adjacent second guide ribs 542, and the plurality of first guide ribs 532 are connected one-to-one with the plurality of second guide ribs 542, so that the plurality of first flow grooves 531 are connected one-to-one with the plurality of second flow grooves 541, thereby forming a plurality of guide channels 51.
[0059] Except for the above differences, the other structures of this embodiment and embodiment 1 are the same and will not be described again.
[0060] Example 3
[0061] The difference between this embodiment and the first embodiment lies only in the structure of the stator impeller 5 and the connection structure with the pump body 3 and the casing 1 .
[0062] See also Figures 14 to 16 Specifically, in this embodiment, the stator impeller 5d includes a diverter 55 and a guide ring 56 connected to the diverter 55, the diverter 55 is arranged on the side of the guide ring 56 close to the cover body 2, the diverter 55 has a plurality of third flow grooves 551, the guide ring 56 includes a first ring 561 and a second ring 562 which are coaxially sleeved, the first ring 561 is located on the outer periphery of the second ring 562, and a plurality of fourth flow grooves 563 are provided between the first ring 561 and the second ring 562, the plurality of third flow grooves 551 are connected one by one with the plurality of fourth flow grooves 563 and are interconnected to form a plurality of guide channels 51.
[0063] In this embodiment, the stator impeller 5 d is an independent component and has no connection with the casing 1 and the pump body 3 , so the stator impeller 5 d can be replaced separately, thereby extending the service life of the heating pump 100 .
[0064] See also Figure 15 to Figure 16 Furthermore, the diverter member 55 includes an annular plate 552 and a plurality of diverter ribs 553 arranged at intervals along the circumference of the annular plate 552. The plurality of diverter ribs 553 connect the surface of one side of the annular plate 552 facing the guide ring 56, and a third flow groove 551 is formed between any two adjacent diverter ribs 553.
[0065] Furthermore, a plurality of guide plates 564 are arranged between the first ring 561 and the second ring 562, and the plurality of guide plates 564 are connected one by one with the plurality of diverter ribs 553. Each guide plate 564 is inclined along the circumference of the first ring 561 from its corresponding diverter rib 553 in a direction away from the diverter member 55, and a fourth flow groove 563 is formed between any two adjacent guide plates 564.
[0066] Except for the above differences, the other structures of this embodiment and embodiment 1 are the same and will not be described again.
[0067] To sum up, the heating pump 100 and the vehicle thermal management system having the same proposed in the utility model, by arranging the fixed impeller 5 at the water outlet of the moving impeller 4, allows the fluid to enter the guide channel 51 after being discharged from the water outlet of the impeller 4, and then dispersed into the heating chamber 6 through multiple guide channels 51, which can not only reduce the flow resistance of the fluid entering the heating chamber 6, but also improve the heating uniformity of the fluid, thereby improving the heating efficiency of the heating pump 100.
[0068] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
[0069] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.
Claims
1. A heating pump, comprising a housing, a cover, a pump body and a flow guide assembly, wherein the pump body is arranged in the housing, the cover is arranged at one end of the housing, the pump body comprises a stator, a rotor and a heating assembly, the flow guide assembly comprises a moving impeller connected to the rotor, the moving impeller is rotatably arranged at the water inlet of the cover, a heating chamber is formed between the pump body and the housing, the heating assembly is accommodated in the heating chamber, and is characterized in that: The guide assembly also includes a stator impeller disposed at the water outlet of the impeller, the stator impeller is located between the pump body and the cover body, and has a plurality of guide channels therein, the guide channels connecting the water outlet of the impeller and the heating chamber.
2. The heating pump according to claim 1, characterized in that: The fixed impeller is integrally arranged at one end of the cover body facing the pump body; Alternatively, the stator impeller is integrally arranged at one end of the pump body facing the cover body.
3. The heating pump according to claim 1, characterized in that: The pump body includes an isolation sleeve, which includes a first cylindrical wall, a second cylindrical wall and a bottom wall. The first cylindrical wall and the second cylindrical wall are coaxially arranged with the impeller. The first cylindrical wall is located at the outer periphery of the second cylindrical wall. The bottom wall connects the first cylindrical wall and the second cylindrical wall and is close to the cover body. The fixed impeller is integrally arranged at one end of the bottom wall facing the cover body.
4. The heating pump according to claim 1, characterized in that: The stator impeller includes a first guide portion and a second guide portion that are connected to each other, the first guide portion is integrally arranged on the cover body, the second guide portion is integrally arranged on the pump body, the first guide portion has a plurality of first flow grooves, the second guide portion has a plurality of second flow grooves, the plurality of first flow grooves are connected one by one with the plurality of second flow grooves to form the plurality of guide channels.
5. The heating pump according to claim 4, characterized in that: The first guide portion includes a plurality of first guide ribs arranged at intervals along the circumference of the impeller, and a first flow groove is formed between any two adjacent first guide ribs. The second guide portion includes a plurality of second guide ribs arranged at intervals along the circumference of the impeller, and a second flow groove is formed between any two adjacent second guide ribs. The plurality of first guide ribs are connected to the plurality of second guide ribs one by one.
6. The heating pump according to claim 1, characterized in that: The stator impeller includes a flow divider and a guide ring connected to the flow divider, the flow divider is arranged on a side of the guide ring close to the cover body, the flow divider has a plurality of third flow grooves, the guide ring includes a first ring and a second ring which are coaxially sleeved, the first ring is located on the outer periphery of the second ring, a plurality of fourth flow grooves are provided between the first ring and the second ring, the plurality of third flow grooves are connected one by one with the plurality of fourth flow grooves and are interconnected to form the plurality of guide channels.
7. The heating pump according to claim 6, characterized in that: The flow divider comprises an annular plate and a plurality of flow divider ribs spaced apart along the circumference of the annular plate. The plurality of flow divider ribs are connected to a side surface of the annular plate facing the guide ring. A third flow groove is formed between any two adjacent flow divider ribs.
8. The heating pump according to claim 7, characterized in that: A plurality of guide plates are arranged between the first ring and the second ring, and the plurality of guide plates are connected to the plurality of diverter ribs one by one. Each of the guide plates is inclined along the circumference of the first ring from the corresponding diverter rib in a direction away from the diverter member, and a fourth flow groove is formed between any two adjacent guide plates.
9. The heating pump according to claim 1, characterized in that: The plurality of guide channels are arranged in a spiral arrangement at intervals along the circumference of the impeller, and along the radial direction of the impeller, each of the guide channels gradually widens from the inside to the outside.
10. A vehicle thermal management system, characterized in that: A heating pump comprising the heating pump according to any one of claims 1 to 9.