First connection terminal of electronic water pump, stator assembly, electronic water pump, thermal management system, and vehicle

Abstract

A first connection terminal (10), a stator assembly (100), an electronic water pump (200), a thermal management system (300), and a vehicle (1000). The first connection terminal (10) comprises: a first connecting part (101), a second connecting part (102), and a third connecting part (103). The first connecting part (101) and the second connecting part (102) are arranged in a first direction (F1). The third connecting part (103) is connected to a same end of the first connecting part (101) and the second connecting part (102) in a second direction (F2). The first connecting part (101) is used for being electrically connected to a stator body (50) of the electronic water pump (200). The second connecting part (102) is used for being electrically connected to a female-end connector of the electronic water pump (200), and the first direction (F1) is perpendicular to the second direction (F2). The stator assembly (100) comprises the stator body (50) and a plurality of connection terminals (40), and at least one connection terminal (40) is a first connection terminal (10). The first connecting part (101) is formed as a stator connecting part (401), and the second connecting part (102) is formed as a connector connecting part (402).

Description

First connection terminal of electronic water pump, stator assembly, electronic water pump, thermal management system and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. "202420566007.9" filed by Anqing Welling Auto Parts Co., Ltd., Anhui Welling Auto Parts Co., Ltd. and Guangdong Welling Auto Parts Co., Ltd. on March 18, 2024. The entire contents of the above Chinese patent applications are hereby incorporated into this application by reference. Technical Field

[0003] The present application relates to the technical field of connecting terminals of electronic water pumps, and more specifically, to a first connecting terminal of an electronic water pump, a stator assembly, an electronic water pump, a thermal management system, and a vehicle. Background Art

[0004] The stator assembly of an electronic water pump is typically electrically connected via a connection terminal. The connection terminal includes a stator connection portion for electrical connection to the stator body and a connector connection portion for electrical connection to the female connector of the electronic water pump. Given that the relative positions of the stator connection portions of adjacent connection terminals are fixed, the related art makes it difficult to flexibly arrange the relative positions of the connector connection portions of adjacent connection terminals according to needs. Summary of the Invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a first connection terminal for an electronic water pump, which can make the spatial arrangement of the connector connection parts of adjacent connection terminals more flexible to meet different design requirements.

[0006] Another object of the present application is to provide a stator assembly having the first connecting terminal of the electronic water pump.

[0007] Another object of the present application is to provide an electronic water pump having the above-mentioned stator assembly.

[0008] Another object of the present application is to provide a thermal management system having the above-mentioned electronic water pump.

[0009] Another object of the present application is to provide a vehicle having the above thermal management system.

[0010] According to the first connection terminal of the electronic water pump according to the embodiment of the present application, it includes: a first connection part, a second connection part and a third connection part, the first connection part and the second connection part are arranged along a first direction, the third connection part connects the first connection part and the second connection part at the same end in the second direction, the first connection part is used to be electrically connected to the stator body of the electronic water pump, and the second connection part is used to be electrically connected to the female connector of the electronic water pump, and the first direction is perpendicular to the second direction.

[0011] According to the first connection terminal of the electronic water pump of the embodiment of the present application, the first connection part and the second connection part are arranged along the first direction, and the third connection part connects the same end of the first connection part and the second connection part in the second direction, thereby reserving space between the first connection part and the second connection part in the first direction, thereby making the arrangement of the relative spatial positions of the first connection part and the second connection part in the first direction and the second direction more flexible and less restricted, and can meet more design requirements.

[0012] According to some embodiments of the present application, in the first direction, a distance between the first connecting portion and the second connecting portion is greater than or equal to 0.5 cm.

[0013] According to some embodiments of the present application, the second connecting portion includes a first segment and a second segment, the first segment extends along the second direction and one end of the first segment is connected to the third connecting portion, the second segment extends along the third direction and is connected to the other end of the first segment, and the first direction, the second direction and the third direction are perpendicular to each other.

[0014] According to some embodiments of the present application, the first connecting portion is provided with a wire clamping hole extending along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0015] According to some embodiments of the present application, the wire clamping hole extends along the second direction, and one end of the wire clamping hole has a puncture notch.

[0016] According to an embodiment of the present application, the stator assembly includes a stator body and a plurality of connecting terminals, wherein the connecting terminals include a stator connecting portion and a connector connecting portion, wherein the stator connecting portion is used to be electrically connected to the stator body, and the connector connecting portion is used to be electrically connected to the female connector of the electronic water pump, wherein at least one of the connecting terminals is the first connecting terminal disclosed in the embodiment of the present application, wherein the first connecting portion is formed as the stator connecting portion, and the second connecting portion is formed as the connector connecting portion.

[0017] According to some embodiments of the present application, the stator connection portions of the plurality of connection terminals are arranged spaced apart along the first direction, and the connector connection portions of the plurality of connection terminals are arranged in multiple rows along the second direction, and each row includes one connector connection portion or multiple connector connection portions arranged spaced apart along the first direction.

[0018] According to some embodiments of the present application, two adjacent rows of connector connection portions are cross-arranged along the first direction.

[0019] According to some embodiments of the present application, the stator body includes a stator winding, the plurality of connection terminals include two first connection terminals and one second connection terminal electrically connected to the stator winding, the stator connection portions of the two first connection terminals are arranged on both sides of the stator connection portion of the second connection terminal along the first direction, and the connector connection portion of the second connection terminal is located on one side of the stator connection portion along the second direction.

[0020] The connector connection portion of the first connection terminal is located on a side of the connector connection portion of the second connection terminal that is close to the stator body.

[0021] According to some embodiments of the present application, the two first connecting terminals are symmetrical about a center line of the second connecting terminal.

[0022] According to some embodiments of the present application, the stator body includes a stator core, the outer peripheral surface of the stator core is provided with a connecting protrusion, and the multiple connecting terminals include a grounding terminal, and the stator connecting portion of the grounding terminal is at least plugged into the connecting protrusion.

[0023] According to some embodiments of the present application, the stator connection portion and the connector connection portion of the grounding terminal are arranged along the first direction, and the connector connection portion extends along a third direction. The grounding terminal also includes a fourth connection portion, which connects one end of the stator connection portion in the second direction and one end of the connector connection portion in the third direction.

[0024] According to some embodiments of the present application, the stator body is provided with a first slot and a second slot arranged along the first direction, the first slot and the second slot are separated by a partition, the first connecting portion of the first connecting terminal is inserted into the first slot along the second direction, the second connecting portion of the first connecting terminal is inserted into the second slot along the second direction, and the third connecting portion of the first connecting terminal is supported on the partition along the second direction.

[0025] According to some embodiments of the present application, the second slot has an open slot on one side along the third direction, the slot side walls and slot bottom walls opposite to the open slot are connected by an arc surface, the first direction, the second direction and the third direction are perpendicular to each other, the second connecting portion includes a first section and a second section, the first section extends along the second direction and one end of the first section is connected to the third connecting portion, the second section extends along the third direction and is bent and connected to the other end of the first section, and the bent connection is supported on the arc surface.

[0026] An electronic water pump according to an embodiment of the present application includes a stator assembly according to an embodiment of the present application.

[0027] A thermal management system according to an embodiment of the present application includes an electronic water pump according to an embodiment of the present application.

[0028] A vehicle according to an embodiment of the present application includes a thermal management system according to an embodiment of the present application.

[0029] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] FIG1 is a schematic diagram of a first connection terminal of an electronic water pump according to a first embodiment of the present application;

[0032] FIG2 is a schematic diagram of a first connection terminal of an electronic water pump according to a second embodiment of the present application;

[0033] FIG3 is a schematic diagram of a second connection terminal according to an embodiment of the present application;

[0034] FIG4 is a front view of a stator assembly according to an embodiment of the present application;

[0035] FIG5 is a top view of a stator assembly according to an embodiment of the present application;

[0036] FIG6 is a cross-sectional view taken along line AA in FIG5 ;

[0037] FIG7 is a partial enlarged view of portion B in FIG5 ;

[0038] FIG8 is a partial cross-sectional view of a stator assembly according to an embodiment of the present application;

[0039] FIG9 is a schematic diagram of a vehicle according to an embodiment of the present application.

[0040] Reference numerals:

[0041] Vehicle 1000; thermal management system 300; electronic water pump 200; stator assembly 100;

[0042] First connection terminal 10; first connection portion 101; wire clamping hole 1011; puncture notch 1012; second connection portion 102; first section 1021; second section 1022; bent connection 1023; third connection portion 103;

[0043] a second connecting terminal 20;

[0044] Ground terminal 30; fourth connecting portion 301; interference portion 302;

[0045] Connecting terminal 40; stator connecting portion 401; connector connecting portion 402;

[0046] stator body 50; stator winding 501; stator core 502; and plug slot 5021; connecting protrusion 503; first slot 504; second slot 505; arc surface 5051; partition 506; limiting protrusion 507; insulating bracket 508;

[0047] First direction F1; second direction F2; third direction F3. Modes for Carrying Out the Invention

[0048] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0049] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0050] In the description of this application, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and diagonally above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0051] Hereinafter, with reference to the accompanying drawings, the first connection terminal 10 of the electronic water pump 200 according to an embodiment of the present application will be described.

[0052] 1 to 9 , the first connection terminal 10 of the electronic water pump 200 according to an embodiment of the present application may include: a first connection portion 101 , a second connection portion 102 and a third connection portion 103 .

[0053] The first connection portion 101 is used to electrically connect to the stator body 50 of the electronic water pump 200, and the second connection portion 102 is used to electrically connect to the female connector of the electronic water pump 200, which is used to connect to an external power source. The first connection portion 101 and the second connection portion 102 are electrically connected to each other via the third connection portion 103 to provide power to the stator body 50 of the electronic water pump 200. For example, the stator body 50 includes a stator winding 501 and a stator core 502. The first connection portion 101 can be used to electrically connect to the stator winding 501; alternatively, the first connection portion 101 can be used to electrically connect to the stator core 502. Specifically, the first connection portion 101 can be connected to the stator body 50 by welding, plugging, snapping, or elastic contact. The third connection portion 103 connects the first and second connection portions 101, 102 into a single body, eliminating the need for a busbar. This reduces the number of components in the stator body 50 and lowers the production cost of the stator body 50.

[0054] In related art, the stator connection portion and the connector connection portion are arranged sequentially along the second direction. To meet certain design requirements, the connector connection portions of adjacent connection terminals need to be spaced apart in the second direction, provided that the relative positions of the stator connection portions of adjacent connection terminals are fixed. Simply reducing the distance between the stator connection portion and the connector connection portion of one of the two adjacent connection terminals would result in the positioning connection portion and the connector connection portion being too close in the second direction. The connector connection portion would interfere with the tooling, preventing the tooling from cutting the excess enameled wire connected to the stator connection portion.

[0055] In the present application, the first connecting portion 101 and the second connecting portion 102 are arranged along the first direction F1, and the third connecting portion 103 connects the same end of the first connecting portion 101 and the second connecting portion 102 in the second direction F2. That is, the first connecting portion 101 and the second connecting portion 102 are both located on the same side of the third connecting portion 103, wherein the first direction F1 is perpendicular to the second direction F2. Since the first connecting portion 101 and the second connecting portion 102 are arranged along the first direction F1, they are separated by a certain distance in the first direction F1, leaving space. Therefore, whether the distance between the first connecting portion 101 and the second connecting portion 102 in the second direction F2 is increased or decreased, it is unlikely to affect the subsequent process of cutting off excess enameled wire. As a result, the relative position design of the second connecting portion 102 in the second direction F2 is more flexible and less restrictive.

[0056] In some embodiments, the electronic water pump 200 includes a stator assembly 100, which includes a stator body 50 and a plurality of connection terminals 40. The connection terminals 40 include a stator connection portion 401 and a connector connection portion 402. The stator connection portion 401 is used to electrically connect to the stator body 50, and the connector connection portion 402 is used to electrically connect to the female connector of the electronic water pump 200. At least one connection terminal 40 is the first connection terminal 10 disclosed in the embodiments of the present application, wherein the first connection portion 101 is formed as the stator connection portion 401, and the second connection portion 102 is formed as the connector connection portion 402. When the first connection terminal 10 serves as the connection terminal 40 in the stator assembly 100 of the electronic water pump 200, the second connection portion 102 of the first connection terminal 10 is more flexible in the arrangement position in the second direction F2, thereby facilitating the spatial arrangement requirements of the connector connection portions 402 of various connection terminals 40.

[0057] According to some embodiments of the present application, the second connecting portion 102 includes a first segment 1021 and a second segment 1022. The first segment 1021 extends along the second direction F2 and one end of the first segment 1021 is connected to the third connecting portion 103. The second segment 1022 extends along the third direction F3 and is connected to the other end of the first segment 1021. The first direction F1, the second direction F2, and the third direction F3 are perpendicular to each other. It should be noted that since the first connecting portion 101 and the second connecting portion 102 are arranged along the first direction F1 in the present application, that is, the second segment 1022 and the first connecting portion 101 are arranged in the first direction F1, even if the distance between the second segment 1022 and the first connecting portion 101 in the second direction F2 is too small, since the second segment 1022 and the first connecting portion 101 are separated by a certain distance in the first direction F1, a space for thread trimming is reserved in advance. Therefore, the second segment 1022 will not affect the subsequent thread trimming operation.

[0058] In addition, under the premise that the connection position of the first connection part 101 and the stator body 50 remains unchanged, the first connection terminal 10 of the present application can also change the distance between adjacent second connection parts 102 in the first direction F1 within a certain range by changing the size of the third connection part 103 and the distance between the first connection part 101 and the second connection part 102 in the first direction F1.

[0059] According to the first connection terminal 10 of the electronic water pump 200 of the embodiment of the present application, by arranging the first connection part 101 and the second connection part 102 along the first direction F1, and the third connection part 103 connecting the first connection part 101 and the second connection part 102 at the same end in the second direction F2, the first connection part 101 and the second connection part 102 will reserve space in the first direction F1, thereby making the arrangement of the relative spatial positions of the first connection part 101 and the second connection part 102 in the first direction F1 and in the second direction F2 more flexible and less restricted, and can meet more design requirements.

[0060] In some embodiments, as shown in Figures 1 and 2 , in the first direction F1, the spacing D between the first connection portion 101 and the second connection portion 102 is greater than or equal to 0.5 cm. In other words, the spacing D between the end of the first connection portion 101 proximate to the second connection portion 102 in the first direction F1 and the end of the second connection portion 102 proximate to the first connection portion 101 in the first direction F1 is greater than or equal to 0.5 cm. For example, the spacing between the first connection portion 101 and the second connection portion 102 can be 0.5 cm, 0.6 cm, 0.7 cm, 0.8 cm, 0.9 cm, or any value between any two of these values. The spacing between the first connection portion 101 and the second connection portion 102 can be selected based on the specific winding process and connector model. In this way, the second connection portion 102 of the first connection terminal 10 is less likely to affect the subsequent wire trimming operation.

[0061] In some embodiments, as shown in Figures 1-3, the first connecting portion 101 is provided with a wire-holding hole 1011 extending along the third direction F3. The wire-holding hole 1011 extends along the second direction F2, and one end of the wire-holding hole 1011 has a puncture notch 1012. The first direction F1, the second direction F2, and the third direction F3 are perpendicular to each other. When installing the first connecting terminal 10, the puncture notch 1012 is used to puncture the enameled wire coating, and the wire-holding hole 1011 is used to clamp the punctured enameled wire, thereby achieving a clamped and fixed enameled wire and an electrical connection. This eliminates the need for soldering, improves connection efficiency, and improves connection effectiveness. The conductors in the enameled wire can be copper or aluminum wire.

[0062] As shown in Figures 4 to 8, the stator assembly 100 disclosed in the embodiment of the present application includes a stator body 50 and a plurality of connecting terminals 40, the connecting terminal 40 includes a stator connecting portion 401 and a connector connecting portion 402, the stator connecting portion 401 is used to be electrically connected to the stator body 50, and the connector connecting portion 402 is used to be electrically connected to the female connector of the electronic water pump 200, wherein at least one connecting terminal 40 is the first connecting terminal 10 disclosed in the embodiment of the present application, the first connecting portion 101 is formed as the stator connecting portion 401, and the second connecting portion 102 is formed as the connector connecting portion 402.

[0063] For example, the stator body 50 may include an insulating bracket 508, a stator winding 501 and a stator core 502, the insulating bracket 508 is arranged on the stator core 502, the stator winding 501 is arranged on the insulating bracket 508, some of the multiple connecting terminals 40 can be electrically connected to the stator core 502, and another part of the multiple connecting terminals 40 can be electrically connected to the multiple stator windings 501. In addition, the multiple connecting terminals 40 can all be detachably connected to the insulating bracket 508, for example, the multiple connecting terminals 40 are all plugged into the insulating bracket 508.

[0064] Because the first connection terminal 10 according to the embodiment of the present application has the above-mentioned beneficial effects, the stator assembly 100 according to the embodiment of the present application arranges the first connection portion 101 and the second connection portion 102 along the first direction F1, and the third connection portion 103 connects the first connection portion 101 and the second connection portion 102 at the same end in the second direction F2. As a result, space is reserved between the first connection portion 101 and the second connection portion 102 in the first direction F1, thereby making the relative spatial arrangement of the first connection portion 101 and the second connection portion 102 in the first direction F1 and the second direction F2 more flexible and less restricted, thereby meeting more design requirements. For example, the arrangement of the connector connection portion 402 between the multiple connection terminals 40 is more flexible.

[0065] In addition, when the first connecting terminal 10 is used as the connecting terminal 40 in the stator assembly 100 of the electronic water pump 200, since the arrangement position of the second connecting portion 102 of the first connecting terminal 10 in the second direction F2 is more flexible, the spatial arrangement flexibility of the connector connecting portion 402 of the adjacent connecting terminal 40 can be higher, which is conducive to realizing the spatial arrangement requirements of the connector connecting portion 402 of various connecting terminals 40.

[0066] According to some embodiments of the present application, as shown in FIG. 4 and FIG. 6 , the stator connection portions 401 of the plurality of connection terminals 40 are arranged in a spaced-apart arrangement along a first direction F1, and the connector connection portions 402 of the plurality of connection terminals 40 are arranged in multiple rows along a second direction F2, with each row including one connector connection portion 402 or multiple connector connection portions 402 spaced-apart along the first direction F1. For example, the connector connection portions 402 of the plurality of connection terminals 40 are arranged in two rows along the second direction F2, with one row including one connector connection portion 402 and the other row including three connector connection portions 402; or one row including two connector connection portions 402 and the other row including two connector connection portions 402. Alternatively, the connector connection portions 402 of the plurality of connection terminals 40 are arranged in three rows along the second direction F2, with two rows each including one connection terminal 40 and the other row including two connection terminals 40. In practice, flexible design can be adopted based on actual needs.

[0067] According to some embodiments of the present application, as shown in FIG. 4 , two adjacent rows of connector connection portions 402 are arranged crosswise along a first direction F1. In other words, the projections of the connector connection portions 402 in the two adjacent rows in the second direction F2 do not overlap. This allows the distance between the connector connection portions 402 in the first direction F1 to be minimized, while simultaneously allowing the spatial distance between adjacent connector connection portions 402 to be maximized. This facilitates a more compact spatial arrangement of the multiple connector connection portions 402 and allows a certain safe distance to be maintained between adjacent connector connection portions 402.

[0068] For example, the stator body 50 includes a stator winding 501, and the multiple connecting terminals 40 include two first connecting terminals 10 and one second connecting terminal 20 electrically connected to the stator winding 501. The stator connecting portions 401 of the two first connecting terminals 10 are arranged on both sides of the stator connecting portion 401 of the second connecting terminal 20 along the first direction F1, the connector connecting portion 402 of the second connecting terminal 20 is located on one side of the stator connecting portion 401 of the second connecting terminal 20 along the second direction F2, and the connector connecting portion 402 of the first connecting terminal 10 is located on the side of the connector connecting portion 402 of the second connecting terminal 20 close to the stator body 50.

[0069] According to some embodiments of the present application, the two first connection terminals 10 are symmetrical about the centerline of the second connection terminal 20. In this way, the two first connection terminals 10 can be stamped and formed using the same set of molds, which helps to reduce the number of molds and lower molding costs. In addition, the connector connection portion 402 of the second connection terminal 20 is equidistant from the connector connection portions 402 of the two first connection terminals 10 in the first direction F1, and the connector connection portion 402 of the second connection terminal 20 is equidistant from the connector connection portions 402 of the two first connection terminals 10 in the second direction F2. In this way, the regularity of the multiple connector connection portions 402 is improved.

[0070] In some embodiments, the distance between the connector connection portion 402 of the second connection terminal 20 and the connector connection portions 402 of the two first connection terminals 10 in the second direction F2 may be equal or unequal, and the distance between the connector connection portion 402 of the second connection terminal 20 and the connector connection portions 402 of the two first connection terminals 10 in the first direction F1 may be equal or unequal, and the selection can be made according to actual needs.

[0071] According to some embodiments of the present application, the stator body 50 includes a stator core 502, the outer circumference of which is provided with a connecting protrusion 503. The plurality of connecting terminals 40 include a grounding terminal 30, the stator connecting portion 401 of which is plugged into at least the connecting protrusion 503. By providing the grounding terminal 30 and the stator core 502, the EMC performance of the electronic water pump 200 can be enhanced. EMC performance (electromagnetic compatibility) refers to the ability of electromagnetic energy generated by a device to neither interfere with other devices nor be interfered with by electromagnetic energy from other devices. The stator connecting portion 401 of the grounding terminal 30 is plugged into at least the connecting protrusion 503. In other words, the stator connecting portion 401 of the grounding terminal 30 can be plugged into only the connecting protrusion 503 or simultaneously connected to both the connecting protrusion 503 and the stator core 502. This increases the connection area between the grounding terminal 30 and the stator core 502, reducing the likelihood of connection failure between the grounding terminal 30 and the stator core 502. For example, the grounding terminal 30 includes an interference portion 302, and the stator core 502 includes an insertion slot 5021. The interference portion 302 is interference-fitted with the insertion slot 5021 to further maintain a good connection between the stator core 502 and the grounding terminal 30; for example, the axial end faces of the grounding terminal 30 and the stator core 502 are abutted.

[0072] In some embodiments, blocks are provided on both sides of the fourth connection portion 301 of the ground terminal 30 in the third direction F3 to support the fourth connection portion 301 in the third direction F3 and reduce the possibility of deformation of the fourth connection portion 301 .

[0073] According to some embodiments of the present application, as shown in FIG5 and FIG6 , the stator connection portion 401 and the connector connection portion 402 of the ground terminal 30 are arranged along the first direction F1, and the connector connection portion 402 extends along the third direction F3. The ground terminal 30 further includes a fourth connection portion 301, which connects one end of the stator connection portion 401 in the second direction F2 and one end of the connector connection portion 402 in the third direction F3. In the present application, by providing the fourth connection portion 301 to connect the stator connection portion 401 and the connector connection portion 402 of the ground terminal 30, the distance between the stator connection portion 401 and the connector connection portion 402 of the ground terminal 30 in the first direction F1, the second direction F2, and the third direction F3 can be changed by changing the dimensions of the fourth connection portion 301 in the first direction F1, the second direction F2, and the third direction F3. This makes the spatial arrangement of the stator connection portion 401 and the connector connection portion 402 of the ground terminal 30 more flexible, and can better meet various terminal 40 arrangement requirements.

[0074] In some specific embodiments, referring to Figure 5, the fourth connecting portion 301 includes a first portion and a second portion that are connected, the first portion extends along the third direction F3, the second portion extends along the first direction F1, the first portion is connected to one end of the stator connecting portion 401 in the second direction F2, and the second portion is connected to one end of the connector connecting portion 402 in the third direction F3, the stator connecting portion 401 of the first connecting terminal 10 and the stator connecting portion 401 of the grounding terminal 30 are arranged spaced apart along the first direction F1, and the connector connecting portion 402 of the grounding terminal 30 is located on the side of the stator connecting portion 401 of the first connecting terminal 10 away from the stator body 50.

[0075] According to some embodiments of the present application, as shown in FIG. 6 , the stator body 50 is provided with a first slot 504 and a second slot 505 arranged along a first direction F1. The first slot 504 and the second slot 505 are separated by a partition 506. The first connection portion 101 of the first connection terminal 10 is inserted into the first slot 504 along the second direction F2, and the second connection portion 102 of the first connection terminal 10 is inserted into the second slot 505 along the second direction F2. The third connection portion 103 of the first connection terminal 10 is supported by the partition 506 along the second direction F2. This facilitates stable mounting of the first connection terminal 10 on the stator body 50, preventing the first connection terminal 10 from easily separating from the stator body 50. Furthermore, the stator body 50 can support the first connection terminal 10, thereby reducing the possibility of significant deformation of the first connection terminal 10.

[0076] In some embodiments, as shown in FIG. 7 , the side of the partition 506 facing the third connection portion 103 is provided with a limiting protrusion 507, which is located on both sides of the third connection portion 103 in the third direction F3 to support the third connection portion 103. This prevents the third connection portion 103 from being deformed.

[0077] According to some embodiments of the present application, as shown in FIG. 4 and FIG. 8 , the second slot 505 has an open notch on one side along the third direction F3, so that the second segment 1022 of the second connecting portion 102 of the first connecting terminal 10 can extend out of the second slot 505 along the third direction F3. The sidewalls and bottom wall of the second slot 505 opposite the open notch are connected by an arcuate surface 5051. The first direction F1, the second direction F2, and the third direction F3 are perpendicular to each other. The second connecting portion 102 includes a first segment 1021 and a second segment 1022. The first segment 1021 extends along the second direction F2, with one end connected to the third connecting portion 103. The second segment 1022 extends along the third direction F3 and is bent and connected to the other end of the first segment 1021. The bent connection 1023 is supported on the arcuate surface 5051. In this way, the second slot 505 provides a larger support area for the first connecting terminal 10, providing more stable support, and the first connecting terminal 10 is less likely to deform under external forces. The bent connection 1023 is supported on the arc surface 5051. Here, the bent connection can be supported on the arc surface 5051 after the first connection terminal 10 is subjected to external force; or, the bent connection portion can be only partially supported on the arc surface 5051; or, the bent connection portion can also be fully supported on the arc surface 5051.

[0078] The stator assembly 100 according to a specific embodiment of the present application is described in detail below with reference to the accompanying drawings. It should be understood that the following description is merely illustrative and should not be construed as limiting the application.

[0079] As shown in Figures 1 to 7, according to some embodiments of the present application, the stator assembly 100 includes a stator winding 501, a stator core 502, an insulating bracket 508, two first connecting terminals 10, a second connecting terminal 20 and a grounding terminal 30. The insulating bracket 508 is arranged on the stator core 502, the stator winding 501 is arranged on the stator core 502, and the two first connecting terminals 10, the second connecting terminal 20 and the grounding terminal 30 are all installed on the insulating bracket 508.

[0080] The first connecting terminal 10, the second connecting terminal 20 and the grounding terminal 30 all include a stator connecting portion 401 and a connector connecting portion 402. The stator connecting portions 401 of the two first connecting terminals 10 and the stator connecting portion 401 of the second connecting terminal 20 are respectively electrically connected to the enameled wires U, V, and W of the stator winding 501. The outer peripheral surface of the stator core 502 is provided with a connecting protrusion 503. The stator connecting portion 401 of the grounding terminal 30 is plugged into the connecting protrusion 503. The connector connecting portions 402 of the first connecting terminal 10, the second connecting terminal 20 and the grounding terminal 30 are all electrically connected to the female connector of the electronic water pump 200.

[0081] In the first direction F1, the stator connection portion 401 of the second connection terminal 20 is arranged between the stator connection portions 401 of the two first connection terminals 10, and the stator connection portion 401 of one first connection terminal 10 is arranged between the stator connection portion 401 of the second connection terminal 20 and the stator connection portion 401 of the grounding terminal 30; the connector connection portions 402 of the two second connection terminals 20 are arranged spaced apart along the first direction F1, and the grounding terminal 30 and the connector connection portions 402 of the second connection terminal 20 are arranged spaced apart along the first direction F1, The connector connecting portion 402 of the terminal 30 and the second connecting terminal 20 are spaced apart from the connector connecting portions 402 of the two second connecting terminals 20 in the second direction F2 and are arranged crosswise along the first direction F1. The connector connecting portion 402 of the first connecting terminal 10 is located on the side of the connector connecting portion 402 of the second connecting terminal 20 close to the stator body 50. The two first connecting terminals 10 are symmetrical about the center line of the second connecting terminal 20. The first connecting terminal 10, the second connecting terminal 20 and the grounding terminal 30 are all equal in size in the first direction F1.

[0082] The first connection terminal 10 includes a first connection portion 101, a second connection portion 102 and a third connection portion 103. The first connection portion 101 and the second connection portion 102 are arranged along the first direction F1. The third connection portion 103 connects the first connection portion 101 and the second connection portion 102 at the same end in the second direction F2. The first connection portion 101 forms the stator connection portion 401, and the second connection portion 102 forms the connector connection portion 402.

[0083] In the first direction F1, the distance between the first connecting portion 101 and the second connecting portion 102 is greater than or equal to 0.5 cm. The first connecting portion 101 is provided with a wire-retaining hole 1011 extending along the third direction F3. The wire-retaining hole 1011 extends along the second direction F2 and has a puncture notch 1012 at one end. The second connecting portion 102 includes a first section 1021 and a second section 1022. The first section 1021 extends along the second direction F2 and is connected to the third connecting portion 103 at one end. The second section 1022 extends along the third direction F3 and is connected to the other end of the first section 1021. The first direction F1, the second direction F2, and the third direction F3 are perpendicular to each other.

[0084] The insulating bracket 508 is provided with a first slot 504 and a second slot 505 arranged along the first direction F1, the first slot 504 and the second slot 505 are separated by a partition 506, the first connection portion 101 of the first connection terminal 10 is inserted into the first slot 504 along the second direction F2, the second connection portion 102 of the first connection terminal 10 is inserted into the second slot 505 along the second direction F2, and the third connection portion 103 of the first connection terminal 10 is supported on the partition 506 along the second direction F2.

[0085] The second slot 505 has an open slot on one side along the third direction F3, and the slot side wall and slot bottom wall opposite to the open slot of the second slot 505 are connected by an arc surface 5051. The second connecting portion 102 includes a first section 1021 and a second section 1022. The first section 1021 extends along the second direction F2 and one end of the first section 1021 is connected to the third connecting portion 103. The second section 1022 extends along the third direction F3 and is bent and connected to the other end of the first section 1021, and the bent connection 1023 is supported on the arc surface 5051.

[0086] The stator connection portion 401 and the connector connection portion 402 of the grounding terminal 30 are arranged along the first direction F1, and the connector connection portion 402 extends along the third direction F3. The grounding terminal 30 also includes a fourth connection portion 301, which connects one end of the stator connection portion 401 in the second direction F2 and one end of the connector connection portion 402 in the third direction F3.

[0087] After the winding process is completed, the enameled wire is clamped in the first slot 504 and pressed into the first connecting terminal 10. The puncture notch 1012 of the wire clamping hole 1011 punctures the enameled wire paint, thereby achieving conductive contact between the first connecting terminal 10 and the internal conductive part of the enameled wire, such as copper material, to achieve electrical connection. The distance between the stator connection part 401 and the connector connection part 402 in the first direction F1 can be flexibly adjusted according to the winding process, connector model, etc. The stator connection part 401 and the connector connection part 402 maintain a distance in the first direction F1, which can leave operating space for subsequent wire cutting operations, so that the tooling can be moved to the appropriate position to cut off the wire ends of the enameled wire.

[0088] The structure of the first connecting terminal 10 of the present application is suitable for situations where the distance between the connector connecting portion 402 and the fixed position of the enameled wire in the second direction F2 is very small. By arranging the connector connecting portion 402 and the stator connecting portion 401 apart in the first direction F1, leaving space for wire cutting, the problem of the connector connecting portion 402 affecting the wire cutting operation in the related art is solved.

[0089] The grounding terminal 30 includes an interference fit portion 302 and a terminal body. The interference fit portion 302 is interference-fitted with the stator core 502. The terminal body is connected with the end face connected to the interference fit portion 302 and abuts against the axial end face of the stator core 502 to further increase the contact area of ​​the electrical connection between the grounding terminal 30 and the stator core 502 and improve the anti-EMC performance.

[0090] As shown in Figure 9, the electronic water pump 200 according to the embodiment of the present application includes the stator assembly 100 according to the embodiment of the present application. Since the stator assembly 100 according to the embodiment of the present application has the above-mentioned beneficial technical effects, the electronic water pump 200 according to the embodiment of the present application, by arranging the first connection portion 101 and the second connection portion 102 along the first direction F1, and connecting the third connection portion 103 to the same end of the first connection portion 101 and the second connection portion 102 in the second direction F2, will reserve space between the first connection portion 101 and the second connection portion 102 in the first direction F1, thereby making the arrangement of the relative spatial positions of the first connection portion 101 and the second connection portion 102 in the first direction F1 and the second direction F2 more flexible and less restricted, and can meet more design requirements.

[0091] As shown in Figure 9, a thermal management system 300 according to an embodiment of the present application includes an electronic water pump 200 according to an embodiment of the present application. Since the electronic water pump 200 according to the embodiment of the present application has the aforementioned beneficial technical effects, the thermal management system 300 according to the embodiment of the present application, by arranging the first connection portion 101 and the second connection portion 102 along the first direction F1, and connecting the third connection portion 103 to the same end of the first connection portion 101 and the second connection portion 102 in the second direction F2, reserves space between the first connection portion 101 and the second connection portion 102 in the first direction F1. This makes the relative spatial arrangement of the first connection portion 101 and the second connection portion 102 in the first direction F1 and in the second direction F2 more flexible and less restricted, thereby meeting more design requirements.

[0092] In some embodiments, the thermal management system 300 is an important component for regulating the vehicle cabin environment (temperature, humidity, etc.) and the working environment of other components. The thermal management system 300 mainly includes: valves, heat exchangers, compressors and pumps. Pumps such as the electronic water pump 200 or other water pumps. The thermal management system 300 has a circulating refrigerant, which can be liquid antifreeze or carbon dioxide refrigerant, etc.

[0093] As shown in Figure 9, a vehicle 1000 according to an embodiment of the present application includes a thermal management system 300 according to an embodiment of the present application. Since the thermal management system 300 according to an embodiment of the present application has the aforementioned beneficial technical effects, the vehicle 1000 according to an embodiment of the present application arranges the first connection portion 101 and the second connection portion 102 along the first direction F1, and the third connection portion 103 connects the first connection portion 101 and the second connection portion 102 at the same end in the second direction F2. This allows for a space to be reserved between the first connection portion 101 and the second connection portion 102 in the first direction F1, thereby making the relative spatial arrangement of the first connection portion 101 and the second connection portion 102 in the first direction F1 and in the second direction F2 more flexible and less restricted, thereby meeting more design requirements.

[0094] Among them, vehicle 1000 can be a new energy vehicle. In some embodiments, the new energy vehicle can be a pure electric vehicle with an electric motor as the main driving force. In other embodiments, the new energy vehicle can also be a hybrid vehicle with an internal combustion engine and an electric motor as the main driving force. Regarding the internal combustion engine and the electric motor mentioned in the above embodiments that provide driving power for the new energy vehicle, the internal combustion engine can use gasoline, diesel, hydrogen, etc. as fuel, and the way to provide electrical energy to the electric motor can use power batteries, hydrogen fuel cells, etc., and there is no special limitation here. It should be noted that this is only an exemplary description of the structure of new energy vehicles, etc., and it does not limit the scope of protection of this application.

[0095] Other structures and operations of the thermal management system 300 and the vehicle 1000 according to the embodiment of the present application are well known to those skilled in the art and will not be described in detail here.

[0096] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0097] Throughout this specification, reference to terms such as "embodiment," "specific embodiment," and "example" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0098] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A first connecting terminal of an electronic water pump, wherein: include: A first connecting portion, a second connecting portion and a third connecting portion, the first connecting portion and the second connecting portion are arranged along a first direction, the third connecting portion connects the same end of the first connecting portion and the second connecting portion in the second direction, the first connecting portion is used to electrically connect to the stator body of the electronic water pump, the second connecting portion is used to electrically connect to the female connector of the electronic water pump, and the first direction is perpendicular to the second direction.

2. The first connecting terminal of the electronic water pump according to claim 1, wherein: In the first direction, a distance between the first connecting portion and the second connecting portion is greater than or equal to 0.5 cm.

3. The first connecting terminal of the electronic water pump according to claim 1 or 2, wherein: The second connecting portion includes a first section and a second section, the first section extends along the second direction and one end of the first section is connected to the third connecting portion, the second section extends along the third direction and is connected to the other end of the first section, and the first direction, the second direction and the third direction are perpendicular to each other.

4. The first connecting terminal of the electronic water pump according to any one of claims 1 to 3, wherein: The first connecting portion is provided with a wire clamping hole penetrating along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

5. The first connecting terminal of the electronic water pump according to claim 4, wherein: The wire clamping hole extends along the second direction, and one end of the wire clamping hole has a puncture notch.

6. A stator assembly, wherein: It includes a stator body and a plurality of connection terminals, wherein the connection terminals include a stator connection portion and a connector connection portion, wherein the stator connection portion is used to electrically connect to the stator body, and the connector connection portion is used to electrically connect to the female connector of the electronic water pump, wherein: At least one of the connection terminals is a first connection terminal according to any one of claims 1 to 5, the first connection portion is formed as the stator connection portion, and the second connection portion is formed as the connector connection portion.

7. The stator assembly according to claim 6, wherein: The stator connection parts of the multiple connection terminals are arranged at intervals along the first direction, and the connector connection parts of the multiple connection terminals are arranged in multiple rows along the second direction, each row including one connector connection part or multiple connector connection parts arranged at intervals along the first direction.

8. The stator assembly according to claim 7, wherein: The connector connection portions of two adjacent rows are arranged crosswise along the first direction.

9. The stator assembly according to claim 7 or 8, wherein: The stator body includes a stator winding, the plurality of connection terminals include two first connection terminals and one second connection terminal electrically connected to the stator winding, the stator connection portions of the two first connection terminals are arranged on both sides of the stator connection portion of the second connection terminal along the first direction, and the connector connection portion of the second connection terminal is located on one side of the stator connection portion along the second direction. The connector connection portion of the first connection terminal is located on a side of the connector connection portion of the second connection terminal that is close to the stator body.

10. The stator assembly according to claim 9, wherein: The two first connecting terminals are symmetrical about a center line of the second connecting terminal.

11. The stator assembly according to any one of claims 7 to 10, wherein: The stator body includes a stator core, an outer peripheral surface of the stator core is provided with a connecting protrusion, and the plurality of connecting terminals include a grounding terminal, and the stator connecting portion of the grounding terminal is at least plugged into the connecting protrusion.

12. The stator assembly according to claim 11, wherein: The stator connection portion and the connector connection portion of the grounding terminal are arranged along the first direction, and the connector connection portion extends along a third direction. The grounding terminal also includes a fourth connection portion, which connects one end of the stator connection portion in the second direction and one end of the connector connection portion in the third direction.

13. The stator assembly according to any one of claims 7 to 12, wherein: The stator body is provided with a first slot and a second slot arranged along the first direction, the first slot and the second slot are separated by a partition, the first connecting portion of the first connecting terminal is inserted into the first slot along the second direction, the second connecting portion of the first connecting terminal is inserted into the second slot along the second direction, and the third connecting portion of the first connecting terminal is supported on the partition along the second direction.

14. The stator assembly according to claim 13, wherein: The second slot has an open slot on one side along the third direction, and the slot side walls and slot bottom walls of the second slot opposite to the open slot are connected by an arc surface. The first direction, the second direction and the third direction are perpendicular to each other, and the second connecting portion includes a first section and a second section. The first section extends along the second direction and one end of the first section is connected to the third connecting portion. The second section extends along the third direction and is bent and connected to the other end of the first section, and the bent connection is supported on the arc surface.

15. An electronic water pump, wherein: Comprising a stator assembly according to any one of claims 1-14.

16. A thermal management system, wherein: Comprising the electronic water pump according to claim 15.

17. A vehicle, wherein Comprising the thermal management system of claim 16.

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