Outer stator wiring assembly

Abstract

The utility model provides an outer stator wiring assembly, comprising an outer stator comprising a lead wire framework and a tooth part for winding a lead wire, and the lead wire framework is provided with at least one winding hole; the wiring terminal comprises a junction box upper cover, a junction box lower cover and an arc-shaped mounting bracket, a plurality of second wiring holes are formed in the upper surface of the junction box upper cover, the junction box upper cover and the junction box lower cover are oppositely combined to jointly form a plurality of first wiring holes, and the mounting bracket is connected to the outer side, deviating from the outer stator rotating shaft, of the junction box lower cover; the lower surface of the installation support is connected with the outer edge of the upper surface of the outer stator in a pressing mode, and the installation support is provided with a protruding positioning clamping tenon facing the rotating shaft of the outer stator and clamped in the winding hole. According to the utility model, the terminal bracket and the motor can be relatively fixed without being influenced by the fixing form of the motor, the possibility of deflection, overturning and the like of the wiring terminal is avoided, the positioning is accurate, the installation is convenient and stable, the installation efficiency is improved, and errors generated during installation are reduced.

Description

Technical Field

[0001] The utility model relates to the field of vehicle-mounted refrigeration equipment, in particular to an external stator wiring assembly. Background Art

[0002] Vehicle-mounted electric scroll compressors with deep backshell designs face a new challenge when connecting the motor terminals to the motor terminals: motor terminal positioning. Unlike traditional designs, deep backshell products house the motor's terminal-bearing end within a nearly closed backshell, leaving no space for manual alignment of the terminals. Therefore, an intermediate terminal bracket is required to define the motor terminals' position, ensuring subsequent alignment of the terminal bracket and motor terminals.

[0003] Patent CN114421684A discloses a motor terminal mounting bracket, comprising a bracket body and mounting clips. One side of the bracket features a mounting clip for facilitating terminal installation, while the other side has a groove with mating surfaces on either side that mate with the motor lead frame. Furthermore, the bracket features several holes that mate with the motor stator bolts, facilitating installation and securing.

[0004] Patent CN114421684A has certain limitations. It requires the use of motor stator fixing bolts to secure the bracket body, making it unsuitable for shrink-fit motor solutions. Regarding the securing of the terminal blocks, the large gap between the bracket and the terminals limits the positioning of the terminals. The terminals are prone to warping under the influence of the leads, resulting in positioning failure. Furthermore, the split mounting clips pose a risk of breakage during installation.

[0005] In view of this, the utility model provides an outer stator connection assembly. Utility Model Content

[0006] In response to the problems in the existing technology, the external stator terminal assembly of the utility model overcomes the difficulties of the existing technology and can complete the relative fixation of the terminal bracket and the motor without being affected by the fixing form of the motor, avoiding the possibility of deflection and overturning of the terminal, etc., with accurate positioning, convenient and stable installation, improved installation efficiency, and reduced errors generated during installation.

[0007] An embodiment of the present invention provides an outer stator terminal assembly, comprising:

[0008] an outer stator, the outer stator comprising a lead frame and a tooth portion for winding a lead wire, the lead frame being provided with at least one winding hole;

[0009] A terminal block includes a junction box upper cover, a junction box lower cover, and an arc-shaped mounting bracket, wherein the upper surface of the junction box upper cover is provided with a plurality of second wiring holes, the junction box upper cover and the junction box lower cover are aligned to form a plurality of first wiring holes, the mounting bracket is connected to the outer side of the junction box lower cover away from the outer stator rotating shaft, the lower surface of the mounting bracket is pressed against the outer edge of the upper surface of the outer stator, the mounting bracket has a positioning tenon protruding toward the outer stator rotating shaft, and the positioning tenon is engaged with the winding hole.

[0010] Preferably, the junction box lower cover and the mounting bracket are integrally formed.

[0011] Preferably, the lower surface of the mounting bracket is pressed against the upper surface of the stator silicon steel sheet at the outer periphery of the outer stator.

[0012] Preferably, each of the first wiring holes is connected to a corresponding second wiring hole through an independent channel.

[0013] Preferably, the winding hole is a pill hole, the upper edge and the lower edge of the pill hole are flat edges, and the left edge and the right edge of the pill hole are semicircular edges.

[0014] Preferably, an inverted right triangle is formed on the positioning tenon, and the base of the right triangle abuts against the flat edge of the upper edge of the inner circumference of the winding hole.

[0015] Preferably, the junction box upper cover and the junction box lower cover are buckled together by means of buckles.

[0016] Preferably, a gap is formed between the lower cover of the junction box and the upper surface of the lead frame.

[0017] Preferably, a gap is formed between the lower cover of the junction box and the upper surface of the teeth of the outer stator.

[0018] Preferably, a motor lead for connecting a lead is provided on the upper surface of the outer stator, and the motor lead is connected to the first wiring hole through a cable.

[0019] The external stator terminal assembly of the present invention can reasonably design the terminal bracket structure by utilizing the motor end face, flow groove, inner side of the shell and the outer contour structure of the terminal. Under the basic framework without interfering with the moving parts, it can meet the position fixing requirements of the terminal bracket and the motor, the terminal bracket and the terminal, and at the same time achieve relative positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.

[0021] Figure 1It is a three-dimensional diagram of the outer stator connection assembly of the present utility model.

[0022] Figure 2 It is a stereoscopic diagram of the connection terminals in the outer stator connection assembly of the present utility model.

[0023] Figure 3 It is a top view of the outer stator connection assembly of the utility model.

[0024] Figure 4 yes Figure 3 Cross-sectional view along the AA axis.

[0025] Figure 5 yes Figure 4 A partial enlarged view of .

[0026] Figure 6 It is a top view of the outer stator of the present utility model.

[0027] Figure 7 yes Figure 6 Cross-sectional view along the BB direction.

[0028] Reference numerals

[0029] 1 External stator

[0030] 2 lead frame

[0031] 21 winding hole

[0032] 3 Motor leads

[0033] 4 Terminal blocks

[0034] 41 Junction box cover

[0035] 42 Junction box lower cover

[0036] 43 Positioning tenon

[0037] 44 First wiring hole

[0038] 45 Second wiring hole

[0039] 46 Mounting bracket

[0040] 5 Stator silicon steel sheets

[0041] 6 teeth DETAILED DESCRIPTION

[0042] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the content disclosed in the present application. The present application can also be implemented or applied through different specific embodiments. The details in the present application can also be modified or changed according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0043] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0044] In the description of this application, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this application, as well as features of different embodiments or examples, unless otherwise contradictory.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this application, "plurality" means two or more, unless otherwise specifically defined.

[0046] In order to clearly describe the present application, components not related to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0047] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0048] When a device is said to be "on" another device, it may be directly on the other device, but there may also be other devices between it. In contrast, when a device is said to be "directly on" another device, there are no other devices between it.

[0049] Although the terms first, second, etc. are used in some instances herein to represent various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are represented. Furthermore, as used in this article, the singular forms "one," "an," and "the" are intended to also include the plural forms, unless there is a contrary indication in the context. It should be further understood that the terms "comprise," "include," and "include" indicate the presence of features, steps, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0050] The technical terms used herein are intended only to refer to specific embodiments and are not intended to limit this application. The singular form used herein also includes the plural form unless the statement explicitly indicates otherwise. The term "comprising" as used in this specification is intended to specify specific features, regions, integers, steps, operations, elements, and / or components and does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and / or components.

[0051] Although not defined differently, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which this application belongs. Terms defined in commonly used dictionaries are to be interpreted as having meanings consistent with the relevant technical literature and current teachings, and unless otherwise defined, they should not be overly interpreted as ideal or highly formalized meanings.

[0052] Figure 1 It is a three-dimensional diagram of the outer stator connection assembly of the present utility model. Figure 2 It is a stereoscopic diagram of the connection terminals in the outer stator connection assembly of the present utility model. Figure 3 It is a top view of the outer stator connection assembly of the utility model. Figure 4 yes Figure 3 Cross-sectional view along the AA axis. Figure 5 yes Figure 4 A partial enlarged view of .

[0053] Figure 6 It is a top view of the outer stator of the present utility model. Figure 7 yes Figure 6 Cross-sectional view along the BB direction. Figures 1 to 7 As shown, the outer stator terminal assembly of the present invention includes: an outer stator 1 and a terminal 4. The outer stator 1 includes at least a lead frame 2 and a tooth portion 6 for winding the lead wires. The lead frame 2 is provided with at least one winding hole 21. The terminal 4 includes a junction box upper cover 41, a junction box lower cover 42, and an arc-shaped mounting bracket 46. The upper surface of the junction box upper cover 41 is provided with a plurality of second wiring holes 45. The junction box upper cover 41 and the junction box lower cover 42 both have semicircular grooves. When the junction box upper cover 41 and the junction box lower cover 42 are aligned, the upper and lower semicircular grooves together form a plurality of first wiring holes 44. The mounting bracket 46 is connected to the outer side of the junction box lower cover 42 away from the rotation axis of the outer stator 1. The lower surface of the mounting bracket 46 is pressed against the outer edge of the upper surface of the outer stator 1. The mounting bracket 46 has a positioning latch 43 protruding toward the rotation axis of the outer stator 1. The positioning latch 43 engages with the winding hole 21.

[0054] In a preferred embodiment, the junction box lower cover 42 and the mounting bracket 46 are integrally formed, but the present invention is not limited thereto.

[0055] In a preferred embodiment, the lower surface of the mounting bracket 46 is pressed against the upper surface of the stator silicon steel sheet 5 on the outer periphery of the outer stator 1 , but the present invention is not limited thereto.

[0056] In a preferred embodiment, each first wiring hole 44 is connected to a corresponding second wiring hole 45 through an independent channel, but the present invention is not limited thereto.

[0057] In a preferred embodiment, the winding hole 21 is a pill-shaped hole, the upper and lower edges of the pill-shaped hole are flat edges, and the left and right edges of the pill-shaped hole are semicircular edges, but the present invention is not limited thereto.

[0058] In a preferred embodiment, the positioning tenon 43 is in the shape of an inverted right triangle, and the base of the right triangle abuts against the flat edge of the upper edge of the inner circumference of the winding hole 21 , but the present invention is not limited thereto.

[0059] In a preferred embodiment, the junction box upper cover 41 and the junction box lower cover 42 are fastened to each other by snaps, but the present invention is not limited thereto.

[0060] In a preferred embodiment, a gap is formed between the junction box lower cover 42 and the upper surface of the lead frame 2 , but the present invention is not limited thereto.

[0061] In a preferred embodiment, a gap is formed between the lower cover 42 of the junction box and the upper surface of the teeth portion 6 of the outer stator 1 , but the present invention is not limited thereto.

[0062] In a preferred embodiment, a motor lead 3 for connecting a lead is provided on the upper surface of the outer stator 1 , and the motor lead 3 is connected to the first wiring hole 44 through a cable, but the present invention is not limited thereto.

[0063] The terminal block 4 in this utility model utilizes an integrated terminal block mounting bracket, comprising a first wiring hole 44, a second wiring hole 45, an arc-shaped mounting bracket 46, and a securing clip. The arc-shaped mounting bracket 46 and the positioning latch 43 secure the terminal block 4 to the motor. The terminal block 4 is secured by the motor stator end face, the lead frame 2 and its winding holes, and the positioning latch 43.

[0064] This utility model utilizes the integrated design of the mounting bracket and the terminal blocks, as well as the mounting method, to achieve secure positioning of the mounting bracket and prevent clip breakage. By integrating the mounting bracket with a portion of the terminal blocks, the clips previously used to restrain the terminal blocks on the bracket are eliminated, achieving secure positioning of the terminal blocks and preventing clip breakage. Whether the motor is bolted or shrink-fitted, the stator end faces, the flow grooves on the outer side of the core, and the motor's lead frame are common features that the mounting bracket utilizes for securement.

[0065] See also Figure 1 and 2 As shown, the terminal block 4 of the present invention includes a junction box upper cover 41, a junction box lower cover 42 and an arc-shaped mounting bracket 46. Among them, the junction box lower cover 42 and the arc-shaped mounting bracket 46 are integrated. The inner and outer sides of the junction box lower cover 42 are arc-shaped surfaces to match the lead frame 2 and the shell. There is a positioning latch 43 on the inner arc surface, and the positioning latch 43 is provided with a flat surface, which contacts the upper end surface of the winding hole of the lead frame 2 to form a first surface contact; the lower surface of the mounting bracket 46 is pressed against the outer edge of the upper surface of the outer stator 1. Specifically, the lower end of the mounting bracket 46 is provided with a flat surface, which contacts the upper end surface of the outer stator 1 to form a second surface contact. The upper and lower matching positioning of the two surface contacts (together forming two opposite directions of the upper and lower clamping) can play a role in axial positioning, effectively positioning the position of the terminal block 4 on the outer stator 1.

[0066] See also Figures 3 to 7 As shown, the general structure of the heat-shrink motor applicable to this patent includes a stator core, lead wires, lead frame 2, windings, and an axial flow slot on the core. (This utility model is not limited to heat-shrink motors, but is also applicable to bolt-fixed motors.) The fixed state of the terminal fixing bracket of this patent is as follows Figure 7 As shown, the lower end face of the mounting bracket is attached to the stator end face of the motor. When the positioning latch 43 is snapped into the winding hole 21 on the lead frame 2, the integrated terminal bracket is fixed relative to the motor. By adjusting the corresponding tolerances, the positioning of the terminal bracket can be made more accurate, achieving the purpose of accurately docking the terminal post.

[0067] This new external stator terminal assembly effectively prevents the terminal from deflecting or tipping, ensuring more accurate positioning and making subsequent installation more convenient and stable. It also eliminates the risk of breakage associated with split-mount mounting clips, simplifies assembly, improves installation efficiency, and reduces installation errors. The terminal's lightweight design reduces its size and weight, allowing the outer side of the bracket to be flush with the outside of the motor without compromising the size of the housing.

[0068] In summary, the external stator terminal assembly of the present invention is not affected by the fixing form of the motor, and can complete the relative fixation of the terminal bracket and the motor, avoiding the possibility of deflection, overturning, etc. of the terminal, with accurate positioning, convenient and stable installation, improved installation efficiency, and reduced errors generated during installation.

[0069] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. An outer stator connection assembly, characterized in that: include: An outer stator (1), comprising a lead frame (2) and a tooth portion (6) for winding a lead wire, wherein the lead frame (2) is provided with at least one winding hole (21); A wiring terminal (4) includes a junction box upper cover (41), a junction box lower cover (42) and an arc-shaped mounting bracket (46), wherein the upper surface of the junction box upper cover (41) is provided with a plurality of second wiring holes (45), the junction box upper cover (41) and the junction box lower cover (42) are aligned to form a plurality of first wiring holes (44), the mounting bracket (46) is connected to the outer side of the junction box lower cover (42) away from the rotation axis of the outer stator (1), the lower surface of the mounting bracket (46) is pressed against the outer edge of the upper surface of the outer stator (1), the mounting bracket (46) has a positioning tenon (43) protruding toward the rotation axis of the outer stator (1), and the positioning tenon (43) is engaged with the winding hole (21).

2. The outer stator terminal assembly according to claim 1, characterized in that: The junction box lower cover (42) and the mounting bracket (46) are integrally formed.

3. The outer stator terminal assembly according to claim 1, wherein: The lower surface of the mounting bracket (46) is pressed against the upper surface of the stator silicon steel sheet (5) on the outer periphery of the outer stator (1).

4. The outer stator terminal assembly according to claim 1, wherein: Each of the first wiring holes (44) is connected to a corresponding second wiring hole (45) through an independent channel.

5. The outer stator terminal assembly according to claim 1, wherein: The winding hole (21) is a pill hole, the upper edge and the lower edge of the pill hole are respectively flat edges, and the left edge and the right edge of the pill hole are respectively semicircular edges.

6. The outer stator terminal assembly according to claim 5, characterized in that: An inverted right triangle is formed on the positioning tenon (43), and the base of the right triangle abuts against the flat edge of the upper edge of the inner periphery of the winding hole (21).

7. The outer stator terminal assembly according to claim 1, wherein: The junction box upper cover (41) and the junction box lower cover (42) are buckled together via a buckle.

8. The outer stator terminal assembly according to claim 1, wherein: A gap is formed between the junction box lower cover (42) and the upper surface of the lead frame (2).

9. The outer stator terminal assembly according to claim 1, wherein: A gap is formed between the lower cover (42) of the junction box and the upper surface of the tooth portion (6) of the outer stator (1).

10. The outer stator terminal assembly according to claim 1, wherein: A motor lead (3) for connecting a lead is provided on the upper surface of the outer stator (1), and the motor lead (3) is connected to the first wiring hole (44) via a cable.

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