Wiring terminal group and stator assembly

By designing the terminal group with arc-shaped and bent structures, the problem of excessive terminal volume is solved, and the compactness of the motor structure and the stability of the wiring are achieved.

CN222508944UActive Publication Date: 2025-02-18ZHEJIANG XUYANG ELECTROMECHANICAL CO LTD
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Patent Information

Application Number
CN202421092875.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-20
Publication Date
2025-02-18
Estimated Expiration
2034-05-20

AI Technical Summary

Technical Problem

The large volume of the terminals in existing motors leads to an increase in the volume of the motor and is difficult to install in compact products.

Method used

A terminal group is designed, including two first terminals and a second terminal, which shortens the vertical and horizontal dimensions of the terminals through arc-shaped and bent structures, reduces space occupation, and passes through limiting ribs and positioning. The ribs ensure the position of the wire hanging terminals and the accuracy of wiring.

Benefits of technology

It effectively reduces the volume of the terminals, makes the motor structure more compact, suitable for installation in products with compact structures, and improves the stability and reliability of wiring.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a wiring terminal group, which belongs to the technical field of motors, solves the problem of large size of wiring terminals, and adopts the technical scheme that the wiring terminal group mainly comprises a first wiring terminal, a second wiring terminal, a third wiring terminal and a fourth wiring terminal, the first conductor is in an arc shape, the cross section of the first conductor is in a flat shape, the first wire hanging terminal extends out of the bottom of the first conductor and is bent upwards, the first wire hanging terminal and the first conductor define a first wire hanging groove, and the first leading-out terminal extends out in the horizontal direction. And the second wiring terminal comprises a second flow guide body, a second wire hanging terminal and a second leading-out terminal which are arranged along the vertical direction, the first flow guide body is bent, the cross section of the first flow guide body is flat, and the second leading-out terminal extends out along the vertical direction. The utility model is mainly used for effectively reducing the volume of the wiring terminal group and meeting the requirement of a compact motor. The utility model also discloses a stator assembly.
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Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a wiring terminal group and a stator assembly. Background Art

[0002] In the prior art, for example, the invention patent CN106998110A discloses an electric tool, including a stator core, a front insulating part, a rear insulating part, and a coil. The front insulating part is provided with an annular part, and the annular part is provided with three fusion terminals for fixing the coil. The three fusion terminals are used to connect the wires that will become the power lines to the coils of each phase. Among them, two of the fusion terminals are composed of a fusion part and an extension part of the fusion wire. The fusion part is formed in an upright posture from the front surface of the annular part, and the extension part is formed in a horizontal posture parallel to the front surface of the annular part, resulting in relatively large axial and radial dimensions of the fusion terminal, which increases the volume of the motor and makes it difficult to install the motor in products that require compact structures, such as mini saws and palm shears. Utility Model Content

[0003] The purpose to be achieved by the utility model is to provide a wiring terminal group, which solves the problem of large volume of the wiring terminals, effectively reduces the volume of the wiring terminals, and meets the needs of compact motors.

[0004] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a terminal block group, including two first terminal blocks and one second terminal block;

[0005] The first connection terminal includes a first body guide arranged in the horizontal direction, a first wire hanging terminal located on the first body guide, and a first lead-out terminal, the first body guide is arc-shaped and the vertical cross-section is flat, the first wire hanging terminal extends from the bottom of the first body guide and bends upward, the first wire hanging terminal and the first body guide form a first wire hanging groove, and the first lead-out terminal extends in the horizontal direction;

[0006] The second connecting terminal includes a second body guide arranged in the vertical direction, a second hanging terminal located on the second body guide, and a second lead-out terminal. The first body guide is bent and has a flat cross-section in the horizontal direction. The second lead-out terminal extends in the vertical direction.

[0007] After adopting the above technical scheme, the utility model has the following advantages: first, the first flow guide is arranged in the horizontal direction, and the first flow guide is arc-shaped and the cross-section is flat. Compared with the first hanging wire segment and the first flow guide segment in the prior art, which are arranged vertically in a three-dimensional shape, the first flow guide is flatter, shortening the vertical dimension of the first terminal to reduce the space occupied by the first terminal, so that the structure of the motor is more compact, which meets the requirements of the installation of the motor in a compact product. Secondly, the first hanging wire terminal extends from the bottom of the first flow guide and bends upward, rather than extending from the top of the first flow guide, so as to further shorten the vertical dimension of the first terminal and further reduce the space occupied by the first terminal. The second terminal includes a second flow guide arranged in the vertical direction, the first flow guide is bent and the cross-section is flat, and the second lead terminal extends in the vertical direction to shorten the horizontal dimension of the second terminal to reduce the space occupied by the first terminal, so that the structure of the motor is more compact, which meets the requirements of the installation of the motor in a compact product.

[0008] Furthermore, the end of the first body guide is bent outward to form a horizontal body, the horizontal body is bent downward to form a vertical body, and the vertical body is bent inward to form a first lead-out terminal.

[0009] By adopting the above-mentioned technical solution, the structure formed by multiple bends can effectively utilize the space, so that the overall size is small and suitable for layout and installation in a limited space.

[0010] Furthermore, a limiting rib is provided at the bottom of the first body guide, and the limiting rib is located on the side of the first hanging wire terminal in the horizontal direction of the first body guide, and the limiting rib is used to limit the movement of the first hanging wire terminal in the horizontal direction of the first body guide.

[0011] By adopting the above technical solution, the limiting rib can effectively limit the horizontal movement of the first hanging terminal, ensure the fixed position of the first hanging terminal, and avoid the first hanging terminal from moving or deforming during the hanging process.

[0012] Furthermore, the top of the first hanging terminal is not higher than the first body guide.

[0013] By adopting the above technical solution, the vertical dimension of the first terminal is further shortened, and the space occupied by the first terminal is further reduced.

[0014] Furthermore, the first lead terminal and the second lead terminal are provided with wiring ports which are convenient for wiring.

[0015] With the above technical solution, the design of the wiring port can make wiring more convenient and quick, and the wiring port is located on the first lead terminal and the second lead terminal, so that the wiring position is farther away from the first hanging terminal, making the wiring position more reasonable.

[0016] Furthermore, the second hanging wire terminal extends from the bottom of the second body guide and bends upward, the second hanging wire terminal and the second body guide form a second hanging wire groove, and the second body guide is provided with an avoidance opening for avoiding the second hanging wire terminal to bend upward.

[0017] By adopting the above technical solution, the second hanging wire terminal is bent upward and provided with an avoidance opening, so that the hanging wire terminal can be ensured to be bent and connected normally, and poor connection or disconnection can be avoided.

[0018] Furthermore, a first positioning rib that is conducive to positioning is provided on the end surface of the first body guide close to the first hanging terminal, and a second positioning rib that is conducive to positioning is provided on the end surface of the second body guide close to the second hanging terminal.

[0019] With the above technical solution, the first positioning rib can help ensure that the first hanging wire terminal can be accurately positioned at the specified position during installation, and accordingly, the position of the first hanging wire terminal is more accurate, so that the wire can be more accurately hung on the first hanging wire terminal, and further the wiring is more reasonable. The second positioning rib can help ensure that the second hanging wire terminal can be accurately positioned at the specified position during installation, and accordingly, the position of the second hanging wire terminal is more accurate, so that the wire can be more accurately hung on the second hanging wire terminal, and further the wiring is more reasonable.

[0020] Another object of the utility model is to provide a stator assembly, comprising a stator core, a stator end plate, a coil winding and a terminal group, wherein the terminal group is arranged on the stator end plate, and the terminal group includes any one of the terminal groups described above, the stator core is provided with six winding teeth arranged at intervals along the circumferential direction of the stator core, the two first terminals and one second terminal are arranged along the circumferential direction of the stator core, the coil windings of the two opposite winding teeth are connected by a bridge, and the first hanging terminal of the first terminal and the second hanging terminal of the second terminal are respectively located between two of the winding teeth and are used to fix the lead wires of the coil windings on the two winding teeth.

[0021] By adopting the above technical solution, the coil windings of the two relative winding teeth are connected by a bridge, which can ensure that the coil connection is more stable and reliable and reduce the risk of breakage or short circuit between the coil windings. The first hanging wire terminal of the first terminal and the second hanging wire terminal of the second terminal are used to fix the lead wire of the coil winding, which can make the coil winding more firmly fixed, avoid the coil winding from loosening or falling off, and improve the reliability of the stator assembly.

[0022] Furthermore, the stator end plate is provided with a receiving groove for receiving the first connecting terminal, and the depth dimension of the receiving groove along the axial direction of the stator core is greater than the width dimension along the radial direction of the stator core.

[0023] By adopting the above technical solution, the first terminal can be installed in the accommodating groove, and the depth dimension of the accommodating groove along the axial direction of the stator core is greater than the width dimension along the radial direction of the stator core, thereby reducing the radial dimension of the stator assembly.

[0024] Furthermore, the lead wire of the coil winding is spot-welded to the first hanging wire terminal of the first wiring terminal and the second hanging wire terminal of the second wiring terminal.

[0025] By adopting the above technical solution, the spot welding connection can ensure that the connection between the lead wire of the coil winding and the first hanging wire terminal of the first terminal and the second hanging wire terminal of the second terminal is firm and reliable, not easy to loosen or break, thereby improving the reliability and stability of the stator assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] Figure 1 This is a schematic structural diagram of a terminal block assembly in Embodiment 1 of the present utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the first connecting terminal in the first embodiment of the present utility model;

[0029] Figure 3 It is a left side view of the first connecting terminal in the first embodiment of the utility model;

[0030] Figure 4 A top view of the first connecting terminal in the first embodiment of the utility model;

[0031] Figure 5 It is a front view of the first connecting terminal in the first embodiment of the utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the second terminal in the first embodiment of the present utility model;

[0033] Figure 7 It is a front view of the second connecting terminal in the first embodiment of the utility model;

[0034] Figure 8 It is a cross-sectional view of the second connecting terminal in the first embodiment of the utility model;

[0035] Fig. 9 It is a rear view of the second connecting terminal in the first embodiment of the utility model;

[0036] Fig.10 This is a structural schematic diagram of a stator assembly equipped with a Hall plate in the second embodiment of the utility model;

[0037] Fig.11This is a structural schematic diagram of a stator assembly without a Hall plate in Embodiment 2 of the present utility model;

[0038] Fig.12 It is an exploded view of a stator assembly in the second embodiment of the present utility model;

[0039] Fig.13 It is a top view of a stator assembly in the second embodiment of the utility model;

[0040] Fig.14 It is a side view of a stator assembly in the second embodiment of the utility model;

[0041] Fig.15 It is a bottom view of a stator assembly in the second embodiment of the utility model;

[0042] Fig.16 This is a wiring diagram of the winding in the second embodiment of the present utility model;

[0043] Fig.17 It is a wiring diagram of the winding in another perspective in the second embodiment of the utility model;

[0044] In the figure, 10, the first terminal; 11, the first body; 111, the horizontal body; 112, the vertical body; 113, the limiting rib; 114, the first positioning rib; 12, the first hanging terminal; 13, the first lead-out terminal; 14, the first hanging groove; 15, the wiring port; 20, the second terminal; 21, the second body; 211, the second positioning rib; 22, the second hanging terminal; 23, the second lead-out terminal; 24, the second hanging groove; 25, the avoidance port; 30, the stator core; 31, the accommodating groove; 40, the stator end plate; 50, the coil winding; 61, the first winding tooth; 62, the second winding tooth; 63, the third winding tooth; 64, the fourth winding tooth; 65, the fifth winding tooth; 66, the sixth winding tooth; 70, the Hall plate. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0046] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0047] It should be understood that in various embodiments of the present invention, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0048] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0049] It should be understood that in the present utility model, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or any three of X, Y, and Z are included.

[0050] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0051] Embodiment 1:

[0052] like Figures 1 to 9 As shown, the utility model provides a terminal block group. In order to better adapt to the stator structure, the terminal block group in this embodiment includes two first terminal blocks 10 and one second terminal block 20. The two first hanging terminals 10 and one second terminal block 20 are separately arranged.

[0053] Among them, the first terminal 10 includes a first body guide 11 arranged in the horizontal direction, a first hanging terminal 12 located on the first body guide 11, and a first lead terminal 13. In order to shorten the vertical dimension of the first terminal 10, the first body guide 11 is arc-shaped and the cross-section in the vertical direction is flat. Compared with the first hanging segment and the first flow guide segment in the prior art, which are arranged vertically in a three-dimensional shape, the first body guide 11 is flatter, shortening the vertical dimension of the first terminal 10 to reduce the space occupied by the first terminal 10, thereby making the structure of the motor more compact and meeting the installation of the motor in a compact product. Secondly, the first hanging terminal 12 extends from the bottom of the first body guide 11 and bends upward. The top of the first hanging terminal 12 is not higher than the first body guide 11. The first hanging terminal 12 and the first body guide 11 form a first hanging groove 14. The first lead terminal 13 extends in the horizontal direction to further shorten the vertical dimension of the first terminal 10 and further reduce the space occupied by the first terminal 10.

[0054] Furthermore, the end of the first body guide 11 is bent outward to form a horizontal body 111, the horizontal body 111 is bent downward to form a vertical body 112, and the vertical body 112 is bent inward to form a first lead-out terminal 13. The structure formed by multiple bendings can effectively utilize space, making the overall size smaller and suitable for layout and installation in a limited space.

[0055] It should be noted that the first current guide 11 can be directly bent inward to form the first lead terminal 13 , thereby reducing the volume of the first wiring terminal 10 .

[0056] In order to facilitate wiring, a wiring port 15 is provided on the first lead terminal 13. The design of the wiring port 15 can make wiring more convenient and quick. The wiring port 15 is located on the first lead terminal 13, so that the wiring position is farther away from the first hanging terminal 12, making the wiring position more reasonable.

[0057] It should be noted that the wiring port 15 can be in a circular, square or other shape to accommodate different wires.

[0058] In order to avoid misconnecting the first hanging wire terminal 12 during wiring, preferably, the first hanging wire terminal 12 is provided, so that the first wiring terminal 10 has only one first hanging wire terminal 12, making the wiring more reasonable and effectively avoiding wiring confusion caused by hanging wires on multiple first wiring terminals 10.

[0059] Since the wire will generate a pulling force on the first hanging wire terminal 12 and easily cause the first hanging wire terminal 12 to move, for this reason, in this embodiment, a limiting rib 113 is provided at the bottom of the first flow guide 11, and the limiting rib 113 is located on the side of the first hanging wire terminal 12 in the horizontal direction of the first flow guide 11. The limiting rib 113 is used to limit the movement of the first hanging wire terminal 12 in the horizontal direction of the first flow guide 11 to ensure that the position of the first hanging wire terminal 12 is fixed.

[0060] The bottom of the first hanging terminal 12 is closer to the first flow guide 11 than the bottom of the limiting rib 113 , which can effectively prevent the first hanging terminal 12 from contacting the outside and ensure the service life of the first hanging terminal 12 .

[0061] In order to make the installation position of the first wiring terminal 10 more accurate, a first positioning rib 114 is provided on the end surface of the first body guide 11 close to the first hanging wire terminal 12 to facilitate positioning. The first positioning rib 114 can help ensure that the first hanging wire terminal 12 can be accurately positioned at the specified position during installation. Accordingly, the position of the first hanging wire terminal 12 is more accurate, so that the wire can be more accurately hung on the first hanging wire terminal 12, further making the wiring more reasonable.

[0062] It should be noted that the first positioning rib 114 can be a barbed structure in the form of a step, a boss, etc., so as to reduce the possibility of falling out in the longitudinal direction after installation.

[0063] Preferably, the vertical dimension of the first body guide 11 is D1, D1=3.5 mm, the horizontal dimension of the first hanging terminal 12 is D2, D2=1.5 mm, and the diameter of the wiring port 15 is Φ, Φ=2.2 mm.

[0064] Furthermore, the second terminal 20 includes a second body guide 21 arranged in the vertical direction, a second hanging terminal 22 and a second lead-out terminal 23 located on the second body guide 21. The first body guide 11 is bent and the cross-section in the horizontal direction is flat. The second lead-out terminal 23 extends in the vertical direction to shorten the lateral dimension of the second terminal 20 so as to reduce the space occupied by the first terminal 10, thereby making the structure of the motor more compact and meeting the requirements for installation of the motor in a compact product.

[0065] The second hanging terminal 22 extends from the bottom of the second body guide (21) and bends upward, and the top of the second hanging terminal 22 is not higher than the second body guide 21, which effectively shortens the vertical dimension of the second terminal 20. The second hanging terminal 22 and the second body guide 21 form a second hanging groove 24, and the second body guide 21 is provided with a relief opening 25 for avoiding the second hanging terminal 22 to bend upward, which can ensure the normal bending and connection of the hanging terminal, and avoid poor connection or disconnection.

[0066] In order to facilitate wiring, a wiring port 15 is provided on the second lead terminal 23, which is conducive to wiring. The design of the wiring port 15 can make wiring more convenient and quick. The wiring port 15 is located on the second lead terminal 23, so that the wiring position is farther away from the first hanging terminal 12, making the wiring position more reasonable.

[0067] In order to make the installation position of the second wiring terminal 20 more accurate, a second positioning rib 211 that is conducive to positioning is provided on the end surface of the second body guide 21 close to the second hanging wire terminal 22. The second positioning rib 211 can help ensure that the second hanging wire terminal 22 can be accurately positioned at the specified position during installation. Accordingly, the position of the second hanging wire terminal 22 is more accurate, so that the wire can be more accurately hung on the second hanging wire terminal 22, further making the wiring more reasonable.

[0068] It should be noted that the second positioning rib 211 can be a structure of a step, a boss, etc.

[0069] Preferably, the second body guide 21 has a transverse width of D3, D3=6.4 mm, the second lead terminal 23 has a transverse width of D4, D4=4.4 mm, the second terminal 20 has a minimum width of D5, D5=1.5 mm, and the second hanging terminal 22 has a transverse length of D6, D6=9 mm.

[0070] When in use, compared with the single wiring terminal in the prior art, separate wiring can be achieved. If a fault occurs in one of the places, only the single structure with the fault needs to be disassembled, without disassembling the entire structure, which is more convenient to use.

[0071] It can be understood that in other embodiments, a plurality of first wiring terminals 10 may be provided, and the plurality of first wiring terminals 10 may be arranged on the first body guide 11 according to the outlet positions in the stator.

[0072] Embodiment 2:

[0073] like Figures 10 to 17As shown, this embodiment provides a stator assembly, including a stator core, a stator end plate, a coil winding 50, a terminal group and a Hall plate, the terminal group is arranged on the stator end plate, the terminal group includes the terminal group of the above technical solution, the stator core 30 is provided with six winding teeth arranged at intervals along the circumferential direction of the stator core 30, two first terminals 10 and one second terminal 20 are arranged along the circumferential direction of the stator core 30, and the coil windings 50 of the two opposite winding teeth are connected by bridges, which can ensure that the coil connection is more stable and reliable, and reduce the risk of breakage or short circuit between the coil windings 50. The first hanging terminal 12 of the first terminal 10 and the second hanging terminal 22 of the second terminal 20 are respectively located between two winding teeth and are used to fix the lead wires of the coil windings 50 on the two winding teeth, which can make the coil windings 50 more firmly fixed, avoid the coil windings 50 from loosening or falling off, and improve the reliability of the stator assembly.

[0074] In order to achieve the installation of the first terminal 10, a receiving groove 31 for receiving the first terminal 10 is provided on the stator end plate 40. There are two receiving grooves 31, which are arranged on the left and right sides of the stator end 40. The depth dimension of the receiving groove 31 along the axial direction of the stator core 30 is greater than the width dimension along the radial direction of the stator core 30, thereby reducing the radial dimension of the stator assembly.

[0075] The stator core 30 , the stator terminal, the two first connecting terminals 10 and the one second connecting terminal 20 are formed into an integral component by integral injection molding, and the structure is more reliable.

[0076] In addition, the lead wires of the coil winding 50 are spot-welded to the first hanging wire terminal 12 of the first terminal 10 and the second hanging wire terminal 22 of the second terminal 20. The spot-welded connection can ensure that the connection between the lead wires of the coil winding 50 and the first hanging wire terminal 12 of the first terminal 10 and the second hanging wire terminal 22 of the second terminal 20 is firm and reliable, and is not easy to loosen or break, thereby improving the reliability and stability of the stator assembly.

[0077] Specifically, the six winding teeth include a first winding tooth 61, a second winding tooth 62, a third winding tooth 63, a fourth winding tooth 64, a fifth winding tooth 65, and a sixth winding tooth 66 arranged along the circumferential direction of the stator core 30, the second terminal 20 is located between the two first terminals 10, and the two first lead-out terminals 13 and one second lead-out terminal 23 are arranged along the circumferential direction of the stator core 30. The coil winding 50 enters the wire from the second lead-out terminal 23, winds around the first winding tooth 61 clockwise, crosses the bridge, winds around the first winding tooth 61 along the needle, and then hangs the wire on one of the first lead-out terminals 13 for spot welding. Then, the coil winding 50 enters the wire again, winds around the fifth winding tooth 65 clockwise, crosses the bridge, winds around the second winding tooth 62 clockwise, and then hangs the wire on another first lead-out terminal 13 for spot welding. Then, the coil winding 50 enters the wire again, winds around the third winding tooth 63 clockwise, crosses the bridge, winds around the sixth winding tooth 66 clockwise, and then hangs the wire on the second lead-out terminal 23 for spot welding.

[0078] The spot welding direction may be the axial direction of the stator assembly, specifically, may be parallel to the stator assembly, or may form a certain angle with the stator assembly.

[0079] After the winding is completed, the stator assembly is put into storage after being processed by pinch welding, paint dripping and glue dispensing of spot welding parts, thus completing the entire manufacturing process of the stator assembly. Finally, the Hall plate 70 is detachably connected to the end of the stator by screws.

[0080] The coil winding 50 is a three-phase electrical winding.

[0081] It can be understood that in other embodiments, the stator core 30, the stator terminal, the two first connecting terminals 10 and the one second connecting terminal 20 are assembled to form an integral component for easy installation and disassembly.

[0082] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A terminal block, characterized in that: It comprises two first connecting terminals (10) and a second connecting terminal (20); The first connection terminal (10) comprises a first body guide (11) arranged in a horizontal direction, a first wire hanging terminal (12) located on the first body guide (11), and a first lead-out terminal (13); the first body guide (11) is arc-shaped and its vertical cross-section is flat; the first wire hanging terminal (12) extends from the bottom of the first body guide (11) and bends upward; the first wire hanging terminal (12) and the first body guide (11) form a first wire hanging groove (14); and the first lead-out terminal (13) extends in a horizontal direction; The second connection terminal (20) comprises a second body guide (21) arranged in a vertical direction, a second hanging terminal (22) located on the second body guide (21), and a second lead-out terminal (23); the first body guide (11) is bent and has a flat cross-section in a horizontal direction; and the second lead-out terminal (23) extends in a vertical direction.

2. The terminal block according to claim 1, characterized in that: The end of the first body guide (11) is bent outward to form a horizontal body (111), the horizontal body (111) is bent downward to form a vertical body (112), and the vertical body (112) is bent inward to form a first lead terminal (13).

3. The terminal block according to claim 1, characterized in that: A limiting rib (113) is provided at the bottom of the first body guide (11); the limiting rib (113) is located on the side of the first wire hanging terminal (12) in the horizontal direction of the first body guide (11); the limiting rib (113) is used to limit the movement of the first wire hanging terminal (12) in the horizontal direction of the first body guide (11).

4. The terminal block assembly according to claim 1, characterized in that: The top end of the first hanging wire terminal (12) is not higher than the first body guide (11).

5. The terminal block according to claim 1, characterized in that: The first lead terminal (13) and the second lead terminal (23) are provided with wiring ports (15) which are convenient for wiring.

6. The terminal block according to claim 1, characterized in that: The second wire hanging terminal (22) extends from the bottom of the second body guide (21) and bends upwards, the second wire hanging terminal (22) and the second body guide (21) form a second wire hanging groove (24), and the second body guide (21) is provided with a relief opening (25) for facilitating the second wire hanging terminal (22) to bend upwards.

7. The terminal block according to claim 1, characterized in that: A first positioning rib (114) is provided on the end surface of the first flow guide (11) close to the first hanging wire terminal (12) to facilitate positioning, and a second positioning rib (211) is provided on the end surface of the second flow guide (21) close to the second hanging wire terminal (22) to facilitate positioning.

8. A stator assembly, comprising a stator core (30), a stator end plate (40), a coil winding (50) and a terminal group, wherein the terminal group is arranged on the stator end plate (40), characterized in that: The terminal group comprises the terminal group according to any one of claims 1 to 7, the stator core (30) is provided with six winding teeth arranged at intervals along the circumferential direction of the stator core (30), the two first terminal blocks (10) and the one second terminal block (20) are arranged along the circumferential direction of the stator core (30), the coil windings (50) of two opposite winding teeth are connected by a bridge, and the first hanging terminal (12) of the first terminal block (10) and the second hanging terminal (22) of the second terminal block (20) are respectively located between two of the winding teeth and are used to fix the lead wires of the coil windings (50) on the two winding teeth.

9. The stator assembly according to claim 8, characterized in that: The stator end plate (40) is provided with a receiving groove (31) for receiving the first connecting terminal (10), and the depth dimension of the receiving groove (31) along the axial direction of the stator core (30) is greater than the width dimension along the radial direction of the stator core (30).

10. The stator assembly according to claim 8, characterized in that: The lead-out wire of the coil winding (50) is spot-welded to a first hanging wire terminal (12) of the first connecting terminal (10) and a second hanging wire terminal (22) of the second connecting terminal (20).

Citation Information

Patent Citations

  • Electric power tool

    CN106998110A