Electronic water pump, electronic water pump assembly, cooling system and vehicle

Abstract

The utility model discloses an electronic water pump, an electronic water pump assembly, a cooling system, and a vehicle, belonging to the technical field of electronic water pumps. The electronic water pump comprises: a first cover plate; a water pump shell provided with an isolation sleeve for installing a rotor assembly, wherein the first cover plate is buckled over the water pump shell and welded to the water pump shell to form a weld seam, and the water pump shell is butt-jointed and fixed to a base body of an assembly base to form an assembly clearance; and a first sealing member arranged between the weld seam and the assembly clearance and sealing the assembly clearance. The utility model can seal the assembly clearance, prevent liquid in the water pump shell from leaking to the outside of the water pump shell from the assembly clearance, reduce the loss of coolant, reduce the failure rate of the product, and ensure the smooth flow of coolant in the electronic water pump.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electronic water pumps, in particular to an electronic water pump, an electronic water pump assembly, a cooling system, and a vehicle.BACKGROUND

[0002] In the field of new energy vehicles, electronic water pumps have gradually replaced conventional mechanical water pumps. The electronic water pump delivers a coolant to a thermal management system of a vehicle, carries away most of the heat generated by a drive motor, a battery, and a control module of the vehicle, and provides a thermal fluid for a warm air heating system, thereby ensuring that an electric drive system of the vehicle maintains its optimal operating temperature range and improving the reliability and safety of the new energy vehicle.

[0003] Currently, during pre-delivery quality inspection or in-service operation after an electronic water pump is installed on a vehicle, coolant leakage often occurs at the junction between a first cover plate and a water pump shell, increasing the failure rate of the product.

[0004] Therefore, it is urgent to provide an electronic water pump, an electronic water pump assembly, a cooling system, and a vehicle to solve the above problems.SUMMARY

[0005] The utility model aims to provide an electronic water pump, an electronic water pump assembly, a cooling system, and a vehicle, to prevent coolant leakage in the electronic water pump and reduce the failure rate of the product.

[0006] To achieve the above objective, the following technical solutions are provided: An electronic water pump includes: a first cover plate; a water pump shell provided with an isolation sleeve for installing a rotor assembly, where the first cover plate is buckled over the water pump shell and welded to the water pump shell to form a weld seam, and the water pump shell is butt-jointed and fixed to a base body of an assembly base to form an assembly clearance; and a first sealing member arranged between the weld seam and the assembly clearance and sealing the assembly clearance.

[0007] As an optional solution for the electronic water pump, the first sealing member is wrapped around the periphery of the weld seam.

[0008] As an optional solution for the electronic water pump, the first sealing member is sandwiched between the first cover plate and the base body, as well as between the water pump shell and the base body.

[0009] As an optional solution for the electronic water pump, the first sealing member elastically presses against an inner wall of the base body and the weld seam.

[0010] As an optional solution for the electronic water pump, the first sealing member is a sealing ring.

[0011] As an optional solution for the electronic water pump, the base body is butt-jointed and fixed to the water pump shell by bolted fastening, a plurality of connecting portions are spaced circumferentially on an outer wall of the base body, a plurality of connecting holes are spaced circumferentially on an outer edge of the water pump shell, and fasteners are threaded through the connecting holes and connected to the connecting portions.

[0012] As an optional solution for the electronic water pump, the electronic water pump further includes a limit sealing groove and a limit sealing ring, one of which is arranged at the end of the water pump shell close to the first cover plate, and the other one is arranged at the end of the first cover plate close to the water pump shell, where the limit sealing ring is embedded and welded in the limit sealing groove.

[0013] As an optional solution for the electronic water pump, the isolation sleeve is integrally formed on the water pump shell.

[0014] An electronic water pump assembly includes an assembly base, where the electronic water pump assembly further includes the electronic water pump as described above, where the first cover plate is provided with a water inlet port and a water outlet port, a base body of the assembly base is buckled over the first cover plate, a water inlet of the assembly base is aligned and communicated with the water inlet port, and a water outlet of the assembly base is aligned and communicated with the water outlet port.

[0015] A cooling system includes the aforementioned electronic water pump or electronic water pump assembly.

[0016] A vehicle includes the aforementioned cooling system.

[0017] In the electronic water pump assembly provided by the utility model, the water inlet of the assembly base is aligned and communicated with the water inlet port, the water outlet of the assembly base is aligned and communicated with the water outlet port, and the first sealing member is arranged between the weld seam and the assembly clearance, thereby preventing liquid in the water pump shell from leaking to the outside of the water pump shell from the assembly clearance, reducing the loss of coolant, and ensuring normal operation of the product.

[0018] The cooling system provided by the utility model avoids liquid leakage from the assembly clearance to the outside of the water pump shell, thereby reducing the loss of coolant.

[0019] The vehicle provided by the utility model prevents liquid in the water pump shell from leaking to the outside of the water pump shell from the assembly clearance, reduces the loss of coolant, and ensures normal operation of the product.BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To illustrate the technical solutions in the embodiments of the utility model more clearly, the accompanying drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Apparently, the accompanying drawings described below show only some embodiments of the utility model. For those skilled in the art, other drawings can also be obtained based on the contents of the embodiments of the utility model and these drawings without any creative efforts. FIG. 1 is a schematic assembly diagram of an electronic water pump in an embodiment of the utility model from a first perspective; FIG. 2 is a schematic assembly diagram of an electronic water pump in an embodiment of the utility model from a second perspective; FIG. 3 is a schematic exploded diagram of an electronic water pump in an embodiment of the utility model; FIG. 4 is a cross-sectional view of an electronic water pump in an embodiment of the utility model; FIG. 5 is a partially enlarged view of part A in FIG. 4; FIG. 6 is a schematic structural diagram of an assembly base in an embodiment of the utility model; FIG. 7 is a schematic structural diagram of a first cover plate in an embodiment of the utility model; FIG. 8 is a schematic structural diagram of a water pump shell in an embodiment of the utility model; and FIG. 9 is a schematic structural diagram of a first sealing member wrapped around a weld seam in an embodiment of the utility model. Reference numerals:

[0021] 1. First cover plate; 2. Water pump shell; 3. Assembly base; 4. First sealing member; 5. Limit sealing groove; 6. Limit sealing ring; 7. Second sealing member; 8. Second cover plate; 9. Weld seam; 10. Assembly clearance; 11. Water inlet port; 12. Water outlet port; 21. Isolation sleeve; 22. Connecting hole; 31. Base body; 32. Water inlet; 33. Water outlet; 34. Connecting portion; 35. Support ring; 36. First limit groove; 37. Second limit groove.DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions, and advantages of the embodiments of the utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings therein. Obviously, the described embodiments are some of the embodiments of the utility model, not all of them. Components in the embodiments of the utility model generally described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed descriptions of the embodiments of the utility model provided in the accompanying drawings are not intended to limit the scope of protection of the utility model, but merely represent the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without inventive efforts shall fall within the protection scope of the utility model.

[0024] It should be noted that similar reference numerals and letters in the following drawings represent similar terms, so once a term is defined in a drawing, further definition and explanation are not required in the follow-up drawings.

[0025] In the description of the utility model, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships that the utility model product is usually placed in when in use. These terms are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component referred to need to have a specific position, be constructed and operated in a specific position. Therefore, these terms should not be understood as limitations of the utility model. In addition, the terms "first", "second", "third", and the like are merely used for distinguishing the description and cannot be construed as indicating or implying relative importance. In the description of the utility model, unless otherwise specified, the "plurality" means two or more.

[0026] In the description of the utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "arranged" and "connection" should be understood in a broad sense. For example, the "connection" may be fixed connection, detachable connection, integral connection, mechanical connection, or electrical connection. Those of ordinary skill in the art can understand the specific meanings of the above terms in the utility model according to specific circumstances.

[0027] In the utility model, unless otherwise explicitly specified and defined, the first feature "above" or "below" the second feature may include direct contact between the first and second features, or include not direct contact between the first and second features but contact through other features between them. Moreover, the first feature "on", "above", and "up" the second feature may include the first feature right above or obliquely above the second feature, or merely indicates that the level of the first feature is higher than that of the second feature. The first feature "below", "under", and "down" the second feature may include the first feature right below or obliquely below the second feature, or merely indicates that the level of the first feature is lower than that of the second feature.

[0028] Embodiments of the utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, are only used to explain the utility model, and cannot be understood as limitations to the utility model.

[0029] Currently, during pre-delivery quality inspection or in-service operation after an electronic water pump is installed on a vehicle, coolant leakage often occurs at the junction between a first cover plate and a water pump shell, increasing the failure rate of the product.

[0030] To prevent coolant leakage in the electronic water pump and reduce the failure rate of the product, an embodiment provides an electronic water pump and a vehicle. The following is a detailed description of the specific content of this embodiment in conjunction with FIG. 1 to FIG. 9.

[0031] As shown in FIG. 1 to FIG. 5, an electronic water pump includes a first cover plate 1, a water pump shell 2, and a first sealing member 4. The first cover plate 1 is engaged with a base body 31 of an assembly base 3. The pump shell 2 is provided with an isolation sleeve 21 for installing a rotor assembly. The first cover plate 1 is buckled over the water pump shell 2 and welded to the water pump shell 2 to form a weld seam 9. The water pump shell 2 is butt-jointed and fixed to the base body 31 of the assembly base 3 to form an assembly clearance 10. The first sealing member 4 is arranged between the weld seam 9 and the assembly clearance 10, and seals the assembly clearance 10.

[0032] Briefly, in the electronic water pump provided by the utility model, the isolation sleeve 21 is recessed into the water pump shell 2 for installing the rotor assembly, the first cover plate 1 is welded to the water pump shell 2 to form the weld seam 9, the water pump shell 2 is butt-jointed and fixed to the base body 31 of the assembly base 3 to form the assembly clearance 10, and the first sealing member 4 is arranged between the weld seam 9 and the assembly clearance 10 to seal the assembly clearance 10, thereby preventing liquid in the water pump shell 2 from leaking to the outside of the water pump shell 2 from the assembly clearance 10, reducing the loss of coolant, reducing the failure rate of the product, ensuring the smooth flow of coolant in the electronic water pump, and facilitating normal operation of the product.

[0033] For example, in some application scenarios, as shown in FIG. 9, the first sealing member 4 is wrapped around the periphery of the weld seam 9 and seals the assembly clearance 10. On the premise that the first sealing member 4 seals the assembly clearance 10, the first sealing member 4 is wrapped around the periphery of the weld seam 9 to seal the weld seam 9. By adding the first sealing member 4 to seal both the assembly clearance 10 and the weld seam 9, not only is a good sealing effect achieved, but also the usage quantity of sealing members and the usage costs are reduced. For example, in some application scenarios, the first sealing member 4 is sandwiched between the first cover plate 1 and the base body 31, as well as between the water pump shell 2 and the base body 31, to seal a channel between the weld seam 9 and the base body 31 leading to the assembly clearance 10, thereby achieving the effect of closing the assembly clearance 10.

[0034] For example, in some application scenarios, the first sealing member 4, made of an elastic material, elastically presses against an inner wall of the base body 31 and the weld seam 9. The first sealing member 4 adjusts its sealing pressure against the weld seam 9 through elastic deformation, thereby further improving its sealing effect on the weld seam 9.

[0035] Further, the first sealing member 4 is a sealing ring, and its material may be but is not limited to rubber or plastic and will not be elaborated here.

[0036] Further, as shown in FIGs. 3, 6 and 8, the base body 31 is butt-jointed and fixed to the water pump shell 2 by bolted fastening, a plurality of connecting portions 34 are spaced circumferentially on an outer wall of the base body 31, a plurality of connecting holes 22 are spaced circumferentially on an outer edge of the water pump shell 2, and fasteners are threaded through the connecting holes 22 and connected to the connecting portions 34. In this embodiment, the fasteners may be, but not limited to, bolts or screws. The connecting holes 22 run through the outer edge of the water pump shell 2, the connecting portions 34 correspond one to one with the connecting holes 22, a threaded hole is formed in the connecting portion 34, and the fasteners pass through the connecting holes 22 and then are connected to the threaded holes to connect the base body 31 with the water pump shell 2 together.

[0037] Further, the electronic water pump includes a limit sealing groove 5 and a limit sealing ring 6, one of which is arranged at the end of the water pump shell 2 close to the first cover plate 1, and the other one is arranged at the end of the first cover plate 1 close to the water pump shell 2; and the limit sealing ring 6 is embedded and welded in the limit sealing groove 5. By increasing the welding contact area between the first cover plate 1 and the water pump shell 2, the connection firmness between the first cover plate 1 and the water pump shell 2 is improved.

[0038] For example, as shown in FIG. 7 and FIG. 8, in this embodiment, the limit sealing ring 6 protrudes from the first cover plate 1, while the limit sealing groove 5 is recessed into the water pump shell 2. By inserting the limit sealing ring 6 into the limit sealing groove 5, the contact area between the first cover plate 1 and the water pump shell 2 is increased, thereby improving the connection firmness between the first cover plate 1 and the water pump shell 2.

[0039] Further, the isolation sleeve 21 is integrally formed on the water pump shell 2, that is, the isolation sleeve 21 does not need to be assembled onto the water pump shell 2 by fasteners, thereby reducing the assembly process. Moreover, the one-piece structure of the isolation sleeve 21 and the water pump shell 2 enhances the overall structural strength of the water pump shell 2.

[0040] Understandably, the electronic water pump in this embodiment includes the first cover plate 1, the water pump shell 2, and the first sealing member 4. The first cover plate 1 is engaged with the base body 31 of the assembly base 3. The isolation sleeve 21 is recessed into the water pump shell 2 for installing the rotor assembly. The first cover plate 1 is buckled over the water pump shell 2 and welded to the water pump shell 2. The first sealing member 4 is located between the first cover plate 1 and the base body 31, as well as between the water pump shell 2 and the base body 31. The first sealing member 4 located between the first cover plate 1 and the base body 31 can be used to seal the clearance between the first cover plate 1 and the base body 31, and the first sealing member 4 further located between the water pump shell 2 and the base body 31 can be used to seal the clearance between the water pump shell 2 and the base body 31, thereby avoiding coolant leakage in the electronic water pump.

[0041] Further, the electronic water pump includes a second sealing member 7, which is sandwiched between a water inlet 32 and a water inlet port 11. The second sealing member 7 is added to prevent the leakage of incoming coolant from the connection gap between the water inlet 32 and the water inlet port 11, ensuring the sealing property of connection between the water inlet 32 and the water inlet port 11. Further, a support ring 35 protrudes from the end surface of the base body 31 close to the first cover plate 1, and the support ring 35 presses against the first cover plate 1. The support ring 35 is added to the base body 31, and one end of the support ring 35 is supported on the first cover plate 1, thereby improving the overall structural strength of the electronic water pump.

[0042] Further, a first limit groove 36 is recessed into an outer wall of the water inlet 32, a water inlet pipe is sleeved over the outer wall of the water inlet 32, and a first clamp snaps into the first limit groove 36. The cooperation of the first clamp and the first limit groove 36 ensures the firmness and sealing property of connection between the water inlet pipe and the water inlet 32, thereby avoiding coolant leakage from the gap of connection between the water inlet pipe and the water inlet 32.

[0043] Further, a second limit groove 37 is recessed into an outer wall of a water outlet 33, a water outlet pipe is sleeved over the outer wall of the water outlet 33, and a second clamp snaps into the second limit groove 37. The cooperation of the second clamp and the second limit groove 37 ensures the firmness and sealing property of connection between the water outlet pipe and the water outlet 33, thereby avoiding coolant leakage from the gap of connection between the water outlet pipe and the water outlet 33.

[0044] Further, a second cover plate 8 is provided at the end of the water pump shell 2 away from the first cover plate 1, and the space formed between the second cover plate 8 and the water pump shell 2 is used to install a stator assembly.

[0045] An embodiment further provides an electronic water pump assembly, including an assembly base 3 and the aforementioned electronic water pump. The first cover plate 1 is provided with a water inlet port 11 and a water outlet port 12, a base body 31 of the assembly base 3 is buckled over the first cover plate 1, a water inlet 32 of the assembly base 3 is aligned and communicated with the water inlet port 11, and a water outlet 33 of the assembly base 3 is aligned and communicated with the water outlet port 12. The first sealing member 4 is added to avoid liquid leakage from the assembly clearance 10 to the outside of the water pump shell 2, thereby reducing the loss of coolant and facilitating the normal operation of the product.

[0046] An embodiment further provides a cooling system, including the aforementioned electronic water pump or electronic water pump assembly, to avoid liquid leakage from the assembly clearance to the outside of the water pump shell 2, reduce the failure rate of the product, and ensure the smooth flow of coolant in the electronic water pump.

[0047] An embodiment further provides a vehicle, including the cooling system mentioned above. The first sealing member 4 is added to reduce the failure rate of the product, ensure the smooth flow of coolant in the electronic water pump, and facilitate the normal operation of the product.

[0048] It should be noted that the above are only the preferred embodiments of the utility model and the technical principles applied. Those skilled in the art can understand that the utility model is not limited to the specific embodiments mentioned here. For those skilled in the art, various obvious variations, readjustments, and substitutions can be made without departing from the scope of protection of the utility model. Therefore, although the above embodiments provide a relatively detailed description of the utility model, the utility model is not limited to the above embodiments and can further include more other equivalent embodiments without departing from the conception of the utility model, while the scope of the utility model is determined by the scope of the appended claims.

Examples

Embodiment Construction

[0022]In order to make the objectives, technical solutions, and advantages of the embodiments of the utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings therein. Obviously, the described embodiments are some of the embodiments of the utility model, not all of them. Components in the embodiments of the utility model generally described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0023]Therefore, the following detailed descriptions of the embodiments of the utility model provided in the accompanying drawings are not intended to limit the scope of protection of the utility model, but merely represent the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without inventive efforts shall ...

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electronic water pumps, in particular to an electronic water pump, an electronic water pump assembly, a cooling system, and a vehicle.BACKGROUND

[0002] In the field of new energy vehicles, electronic water pumps have gradually replaced conventional mechanical water pumps. The electronic water pump delivers a coolant to a thermal management system of a vehicle, carries away most of the heat generated by a drive motor, a battery, and a control module of the vehicle, and provides a thermal fluid for a warm air heating system, thereby ensuring that an electric drive system of the vehicle maintains its optimal operating temperature range and improving the reliability and safety of the new energy vehicle.

[0003] Currently, during pre-delivery quality inspection or in-service operation after an electronic water pump is installed on a vehicle, coolant leakage often occurs at the junction between a first cover plate and a water pump shell, increasing the failure rate of the product.

[0004] Therefore, it is urgent to provide an electronic water pump, an electronic water pump assembly, a cooling system, and a vehicle to solve the above problems.SUMMARY

[0005] The utility model aims to provide an electronic water pump, an electronic water pump assembly, a cooling system, and a vehicle, to prevent coolant leakage in the electronic water pump and reduce the failure rate of the product.

[0006] To achieve the above objective, the following technical solutions are provided: An electronic water pump includes: a first cover plate; a water pump shell provided with an isolation sleeve for installing a rotor assembly, where the first cover plate is buckled over the water pump shell and welded to the water pump shell to form a weld seam, and the water pump shell is butt-jointed and fixed to a base body of an assembly base to form an assembly clearance; and a first sealing member arranged between the weld seam and the assembly clearance and sealing the assembly clearance.

[0007] As an optional solution for the electronic water pump, the first sealing member is wrapped around the periphery of the weld seam.

[0008] As an optional solution for the electronic water pump, the first sealing member is sandwiched between the first cover plate and the base body, as well as between the water pump shell and the base body.

[0009] As an optional solution for the electronic water pump, the first sealing member elastically presses against an inner wall of the base body and the weld seam.

[0010] As an optional solution for the electronic water pump, the first sealing member is a sealing ring.

[0011] As an optional solution for the electronic water pump, the base body is butt-jointed and fixed to the water pump shell by bolted fastening, a plurality of connecting portions are spaced circumferentially on an outer wall of the base body, a plurality of connecting holes are spaced circumferentially on an outer edge of the water pump shell, and fasteners are threaded through the connecting holes and connected to the connecting portions.

[0012] As an optional solution for the electronic water pump, the electronic water pump further includes a limit sealing groove and a limit sealing ring, one of which is arranged at the end of the water pump shell close to the first cover plate, and the other one is arranged at the end of the first cover plate close to the water pump shell, where the limit sealing ring is embedded and welded in the limit sealing groove.

[0013] As an optional solution for the electronic water pump, the isolation sleeve is integrally formed on the water pump shell.

[0014] An electronic water pump assembly includes an assembly base, where the electronic water pump assembly further includes the electronic water pump as described above, where the first cover plate is provided with a water inlet port and a water outlet port, a base body of the assembly base is buckled over the first cover plate, a water inlet of the assembly base is aligned and communicated with the water inlet port, and a water outlet of the assembly base is aligned and communicated with the water outlet port.

[0015] A cooling system includes the aforementioned electronic water pump or electronic water pump assembly.

[0016] A vehicle includes the aforementioned cooling system.

[0017] In the electronic water pump assembly provided by the utility model, the water inlet of the assembly base is aligned and communicated with the water inlet port, the water outlet of the assembly base is aligned and communicated with the water outlet port, and the first sealing member is arranged between the weld seam and the assembly clearance, thereby preventing liquid in the water pump shell from leaking to the outside of the water pump shell from the assembly clearance, reducing the loss of coolant, and ensuring normal operation of the product.

[0018] The cooling system provided by the utility model avoids liquid leakage from the assembly clearance to the outside of the water pump shell, thereby reducing the loss of coolant.

[0019] The vehicle provided by the utility model prevents liquid in the water pump shell from leaking to the outside of the water pump shell from the assembly clearance, reduces the loss of coolant, and ensures normal operation of the product.BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To illustrate the technical solutions in the embodiments of the utility model more clearly, the accompanying drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Apparently, the accompanying drawings described below show only some embodiments of the utility model. For those skilled in the art, other drawings can also be obtained based on the contents of the embodiments of the utility model and these drawings without any creative efforts. FIG. 1 is a schematic assembly diagram of an electronic water pump in an embodiment of the utility model from a first perspective; FIG. 2 is a schematic assembly diagram of an electronic water pump in an embodiment of the utility model from a second perspective; FIG. 3 is a schematic exploded diagram of an electronic water pump in an embodiment of the utility model; FIG. 4 is a cross-sectional view of an electronic water pump in an embodiment of the utility model; FIG. 5 is a partially enlarged view of part A in FIG. 4; FIG. 6 is a schematic structural diagram of an assembly base in an embodiment of the utility model; FIG. 7 is a schematic structural diagram of a first cover plate in an embodiment of the utility model; FIG. 8 is a schematic structural diagram of a water pump shell in an embodiment of the utility model; and FIG. 9 is a schematic structural diagram of a first sealing member wrapped around a weld seam in an embodiment of the utility model. Reference numerals:

[0021] 1. First cover plate; 2. Water pump shell; 3. Assembly base; 4. First sealing member; 5. Limit sealing groove; 6. Limit sealing ring; 7. Second sealing member; 8. Second cover plate; 9. Weld seam; 10. Assembly clearance; 11. Water inlet port; 12. Water outlet port; 21. Isolation sleeve; 22. Connecting hole; 31. Base body; 32. Water inlet; 33. Water outlet; 34. Connecting portion; 35. Support ring; 36. First limit groove; 37. Second limit groove.DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions, and advantages of the embodiments of the utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings therein. Obviously, the described embodiments are some of the embodiments of the utility model, not all of them. Components in the embodiments of the utility model generally described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed descriptions of the embodiments of the utility model provided in the accompanying drawings are not intended to limit the scope of protection of the utility model, but merely represent the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without inventive efforts shall fall within the protection scope of the utility model.

[0024] It should be noted that similar reference numerals and letters in the following drawings represent similar terms, so once a term is defined in a drawing, further definition and explanation are not required in the follow-up drawings.

[0025] In the description of the utility model, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships that the utility model product is usually placed in when in use. These terms are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component referred to need to have a specific position, be constructed and operated in a specific position. Therefore, these terms should not be understood as limitations of the utility model. In addition, the terms "first", "second", "third", and the like are merely used for distinguishing the description and cannot be construed as indicating or implying relative importance. In the description of the utility model, unless otherwise specified, the "plurality" means two or more.

[0026] In the description of the utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "arranged" and "connection" should be understood in a broad sense. For example, the "connection" may be fixed connection, detachable connection, integral connection, mechanical connection, or electrical connection. Those of ordinary skill in the art can understand the specific meanings of the above terms in the utility model according to specific circumstances.

[0027] In the utility model, unless otherwise explicitly specified and defined, the first feature "above" or "below" the second feature may include direct contact between the first and second features, or include not direct contact between the first and second features but contact through other features between them. Moreover, the first feature "on", "above", and "up" the second feature may include the first feature right above or obliquely above the second feature, or merely indicates that the level of the first feature is higher than that of the second feature. The first feature "below", "under", and "down" the second feature may include the first feature right below or obliquely below the second feature, or merely indicates that the level of the first feature is lower than that of the second feature.

[0028] Embodiments of the utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, are only used to explain the utility model, and cannot be understood as limitations to the utility model.

[0029] Currently, during pre-delivery quality inspection or in-service operation after an electronic water pump is installed on a vehicle, coolant leakage often occurs at the junction between a first cover plate and a water pump shell, increasing the failure rate of the product.

[0030] To prevent coolant leakage in the electronic water pump and reduce the failure rate of the product, an embodiment provides an electronic water pump and a vehicle. The following is a detailed description of the specific content of this embodiment in conjunction with FIG. 1 to FIG. 9.

[0031] As shown in FIG. 1 to FIG. 5, an electronic water pump includes a first cover plate 1, a water pump shell 2, and a first sealing member 4. The first cover plate 1 is engaged with a base body 31 of an assembly base 3. The pump shell 2 is provided with an isolation sleeve 21 for installing a rotor assembly. The first cover plate 1 is buckled over the water pump shell 2 and welded to the water pump shell 2 to form a weld seam 9. The water pump shell 2 is butt-jointed and fixed to the base body 31 of the assembly base 3 to form an assembly clearance 10. The first sealing member 4 is arranged between the weld seam 9 and the assembly clearance 10, and seals the assembly clearance 10.

[0032] Briefly, in the electronic water pump provided by the utility model, the isolation sleeve 21 is recessed into the water pump shell 2 for installing the rotor assembly, the first cover plate 1 is welded to the water pump shell 2 to form the weld seam 9, the water pump shell 2 is butt-jointed and fixed to the base body 31 of the assembly base 3 to form the assembly clearance 10, and the first sealing member 4 is arranged between the weld seam 9 and the assembly clearance 10 to seal the assembly clearance 10, thereby preventing liquid in the water pump shell 2 from leaking to the outside of the water pump shell 2 from the assembly clearance 10, reducing the loss of coolant, reducing the failure rate of the product, ensuring the smooth flow of coolant in the electronic water pump, and facilitating normal operation of the product.

[0033] For example, in some application scenarios, as shown in FIG. 9, the first sealing member 4 is wrapped around the periphery of the weld seam 9 and seals the assembly clearance 10. On the premise that the first sealing member 4 seals the assembly clearance 10, the first sealing member 4 is wrapped around the periphery of the weld seam 9 to seal the weld seam 9. By adding the first sealing member 4 to seal both the assembly clearance 10 and the weld seam 9, not only is a good sealing effect achieved, but also the usage quantity of sealing members and the usage costs are reduced. For example, in some application scenarios, the first sealing member 4 is sandwiched between the first cover plate 1 and the base body 31, as well as between the water pump shell 2 and the base body 31, to seal a channel between the weld seam 9 and the base body 31 leading to the assembly clearance 10, thereby achieving the effect of closing the assembly clearance 10.

[0034] For example, in some application scenarios, the first sealing member 4, made of an elastic material, elastically presses against an inner wall of the base body 31 and the weld seam 9. The first sealing member 4 adjusts its sealing pressure against the weld seam 9 through elastic deformation, thereby further improving its sealing effect on the weld seam 9.

[0035] Further, the first sealing member 4 is a sealing ring, and its material may be but is not limited to rubber or plastic and will not be elaborated here.

[0036] Further, as shown in FIGs. 3, 6 and 8, the base body 31 is butt-jointed and fixed to the water pump shell 2 by bolted fastening, a plurality of connecting portions 34 are spaced circumferentially on an outer wall of the base body 31, a plurality of connecting holes 22 are spaced circumferentially on an outer edge of the water pump shell 2, and fasteners are threaded through the connecting holes 22 and connected to the connecting portions 34. In this embodiment, the fasteners may be, but not limited to, bolts or screws. The connecting holes 22 run through the outer edge of the water pump shell 2, the connecting portions 34 correspond one to one with the connecting holes 22, a threaded hole is formed in the connecting portion 34, and the fasteners pass through the connecting holes 22 and then are connected to the threaded holes to connect the base body 31 with the water pump shell 2 together.

[0037] Further, the electronic water pump includes a limit sealing groove 5 and a limit sealing ring 6, one of which is arranged at the end of the water pump shell 2 close to the first cover plate 1, and the other one is arranged at the end of the first cover plate 1 close to the water pump shell 2; and the limit sealing ring 6 is embedded and welded in the limit sealing groove 5. By increasing the welding contact area between the first cover plate 1 and the water pump shell 2, the connection firmness between the first cover plate 1 and the water pump shell 2 is improved.

[0038] For example, as shown in FIG. 7 and FIG. 8, in this embodiment, the limit sealing ring 6 protrudes from the first cover plate 1, while the limit sealing groove 5 is recessed into the water pump shell 2. By inserting the limit sealing ring 6 into the limit sealing groove 5, the contact area between the first cover plate 1 and the water pump shell 2 is increased, thereby improving the connection firmness between the first cover plate 1 and the water pump shell 2.

[0039] Further, the isolation sleeve 21 is integrally formed on the water pump shell 2, that is, the isolation sleeve 21 does not need to be assembled onto the water pump shell 2 by fasteners, thereby reducing the assembly process. Moreover, the one-piece structure of the isolation sleeve 21 and the water pump shell 2 enhances the overall structural strength of the water pump shell 2.

[0040] Understandably, the electronic water pump in this embodiment includes the first cover plate 1, the water pump shell 2, and the first sealing member 4. The first cover plate 1 is engaged with the base body 31 of the assembly base 3. The isolation sleeve 21 is recessed into the water pump shell 2 for installing the rotor assembly. The first cover plate 1 is buckled over the water pump shell 2 and welded to the water pump shell 2. The first sealing member 4 is located between the first cover plate 1 and the base body 31, as well as between the water pump shell 2 and the base body 31. The first sealing member 4 located between the first cover plate 1 and the base body 31 can be used to seal the clearance between the first cover plate 1 and the base body 31, and the first sealing member 4 further located between the water pump shell 2 and the base body 31 can be used to seal the clearance between the water pump shell 2 and the base body 31, thereby avoiding coolant leakage in the electronic water pump.

[0041] Further, the electronic water pump includes a second sealing member 7, which is sandwiched between a water inlet 32 and a water inlet port 11. The second sealing member 7 is added to prevent the leakage of incoming coolant from the connection gap between the water inlet 32 and the water inlet port 11, ensuring the sealing property of connection between the water inlet 32 and the water inlet port 11. Further, a support ring 35 protrudes from the end surface of the base body 31 close to the first cover plate 1, and the support ring 35 presses against the first cover plate 1. The support ring 35 is added to the base body 31, and one end of the support ring 35 is supported on the first cover plate 1, thereby improving the overall structural strength of the electronic water pump.

[0042] Further, a first limit groove 36 is recessed into an outer wall of the water inlet 32, a water inlet pipe is sleeved over the outer wall of the water inlet 32, and a first clamp snaps into the first limit groove 36. The cooperation of the first clamp and the first limit groove 36 ensures the firmness and sealing property of connection between the water inlet pipe and the water inlet 32, thereby avoiding coolant leakage from the gap of connection between the water inlet pipe and the water inlet 32.

[0043] Further, a second limit groove 37 is recessed into an outer wall of a water outlet 33, a water outlet pipe is sleeved over the outer wall of the water outlet 33, and a second clamp snaps into the second limit groove 37. The cooperation of the second clamp and the second limit groove 37 ensures the firmness and sealing property of connection between the water outlet pipe and the water outlet 33, thereby avoiding coolant leakage from the gap of connection between the water outlet pipe and the water outlet 33.

[0044] Further, a second cover plate 8 is provided at the end of the water pump shell 2 away from the first cover plate 1, and the space formed between the second cover plate 8 and the water pump shell 2 is used to install a stator assembly.

[0045] An embodiment further provides an electronic water pump assembly, including an assembly base 3 and the aforementioned electronic water pump. The first cover plate 1 is provided with a water inlet port 11 and a water outlet port 12, a base body 31 of the assembly base 3 is buckled over the first cover plate 1, a water inlet 32 of the assembly base 3 is aligned and communicated with the water inlet port 11, and a water outlet 33 of the assembly base 3 is aligned and communicated with the water outlet port 12. The first sealing member 4 is added to avoid liquid leakage from the assembly clearance 10 to the outside of the water pump shell 2, thereby reducing the loss of coolant and facilitating the normal operation of the product.

[0046] An embodiment further provides a cooling system, including the aforementioned electronic water pump or electronic water pump assembly, to avoid liquid leakage from the assembly clearance to the outside of the water pump shell 2, reduce the failure rate of the product, and ensure the smooth flow of coolant in the electronic water pump.

[0047] An embodiment further provides a vehicle, including the cooling system mentioned above. The first sealing member 4 is added to reduce the failure rate of the product, ensure the smooth flow of coolant in the electronic water pump, and facilitate the normal operation of the product.

[0048] It should be noted that the above are only the preferred embodiments of the utility model and the technical principles applied. Those skilled in the art can understand that the utility model is not limited to the specific embodiments mentioned here. For those skilled in the art, various obvious variations, readjustments, and substitutions can be made without departing from the scope of protection of the utility model. Therefore, although the above embodiments provide a relatively detailed description of the utility model, the utility model is not limited to the above embodiments and can further include more other equivalent embodiments without departing from the conception of the utility model, while the scope of the utility model is determined by the scope of the appended claims.

Examples

Embodiment Construction

[0022]In order to make the objectives, technical solutions, and advantages of the embodiments of the utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings therein. Obviously, the described embodiments are some of the embodiments of the utility model, not all of them. Components in the embodiments of the utility model generally described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0023]Therefore, the following detailed descriptions of the embodiments of the utility model provided in the accompanying drawings are not intended to limit the scope of protection of the utility model, but merely represent the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without inventive efforts shall ...

Claims

1. An electronic water pump, comprising: a first cover plate; a water pump shell provided with an isolation sleeve for installing a rotor assembly, wherein the first cover plate is buckled over the water pump shell and welded to the water pump shell to form a weld seam, and the water pump shell is butt-jointed and fixed to a base body of an assembly base to form an assembly clearance; and a first sealing member arranged between the weld seam and the assembly clearance and sealing the assembly clearance.

2. The electronic water pump according to claim 1, wherein the first sealing member is wrapped around the periphery of the weld seam.

3. The electronic water pump according to claim 2, wherein the first sealing member is sandwiched between the first cover plate and the base body, as well as between the water pump shell and the base body.

4. The electronic water pump according to claim 2, wherein the first sealing member elastically presses against an inner wall of the base body and the weld seam.

5. The electronic water pump according to claim 2, wherein the first sealing member is a sealing ring.

6. The electronic water pump according to claim 1, wherein the base body is butt-jointed and fixed to the water pump shell by bolted fastening, a plurality of connecting portions are spaced circumferentially on an outer wall of the base body, a plurality of connecting holes are spaced circumferentially on an outer edge of the water pump shell, and fasteners are threaded through the connecting holes and connected to the connecting portions.

7. The electronic water pump according to claim 1, further comprising a limit sealing groove and a limit sealing ring, one of which is arranged at the end of the water pump shell close to the first cover plate, and the other one is arranged at the end of the first cover plate close to the water pump shell, wherein the limit sealing ring is embedded and welded in the limit sealing groove.

8. The electronic water pump according to any one of claims 1 to 7, wherein the isolation sleeve is integrally formed on the water pump shell.

9. An electronic water pump assembly, comprising an assembly base, wherein the electronic water pump assembly further comprises the electronic water pump according to any one of claims 1 to 8, wherein the first cover plate is provided with a water inlet port and a water outlet port, a base body of the assembly base is buckled over the first cover plate, a water inlet of the assembly base is aligned and communicated with the water inlet port, and a water outlet of the assembly base is aligned and communicated with the water outlet port.

10. A cooling system, comprising the electronic water pump according to any one of claims 1 to 8 or the electronic water pump assembly according to claim 9.

11. A vehicle, comprising the cooling system according to claim 10.

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