Mower, motor, and connecting assembly
By providing a simple structure connection component, the complex electrical connection problem of lawn mower motor is solved, and the convenience of assembly and the reliability of electrical connection are achieved to ensure the stable operation of the motor.
Patent Information
- Application Number
- PCT/CN2023/140797
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-06-26
AI Technical Summary
The electrical connection structure of existing lawn mower motors is complex, and the assembly and electrical connection are inconvenient, which has certain instability.
It is provided with a simple structure and easy to assemble, including a mounting part, a first port and a second port, a first port for connecting the stator winding of the motor to an external power supply, and a second port for connecting the control circuit board of the motor to an external control circuit.
The assembly and electrical connection process of the motor is simplified, the reliability of the electrical connection is improved, and the safe and stable operation of the motor is ensured.
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Figure CN2023140797_26062025_PF_FP_ABST
Abstract
Description
Lawn mowers, motors, and connecting components Technical Field
[0001] The present application relates to the technical field of motors, and in particular to a connection assembly of a motor. Background Art
[0002] As one of the common power devices, electric motors are widely used in various industries. For example, they are used as traction motors in lawn mowers to drive the wheels of the lawn mower to move on the lawn, or as cutting motors to drive the blades of the lawn mower to trim and trim the flowers and grass on the path of travel to keep the lawn flat.
[0003] Existing lawn mowers often use a DC power supply, which is converted via a converter into three-phase power and then connected to the motor's phase windings to power the coils. Simultaneously, the control circuit board also needs to connect to an external control circuit to control the motor's operation. Existing designs typically utilize two separate connectors on the motor housing to achieve electrical connections. However, the assembly and electrical connection of these two connectors present certain inconveniences and require further improvement.
[0004] Summary of the Invention
[0005] In view of this, a connecting assembly with a simple structure and easy assembly, a motor using the connecting assembly, and a lawn mower using the motor are provided.
[0006] On the one hand, the present application provides a connection component, including a mounting portion, a first port and a second port, the first port including a terminal seat and a plurality of first terminals integrally fixed in the terminal seat, the second port including a terminal shell and a plurality of second terminals integrally fixed in the terminal shell, the terminal seat and the terminal shell are integrally extended from the mounting portion, the first terminal is used to connect the stator winding of the motor with an external power supply, and the second terminal is used to connect the control circuit board of the motor with an external control circuit.
[0007] In some embodiments, each of the first terminals includes a first inner end and a first outer end relative to each other, and the terminal seat forms an assembly space on the upper and lower sides of each first outer end respectively; the first port also includes a terminal rack, and the terminal rack includes several support platforms, and the support platforms are inserted into one of the assembly spaces on both sides of the first outer end and overlap with the first outer end.
[0008] In some embodiments, the terminal frame further includes a substrate detachably connected to the top or bottom of the terminal base, and the support platform is integrally extended from the substrate.
[0009] In some embodiments, a nut is integrally fixed in each of the support platforms, a screw hole is formed in the nut, and a connecting hole is provided at the outer end of each of the first terminals corresponding to the screw hole.
[0010] In some embodiments, positioning portions are bent and extended from both lateral ends of the terminal frame, and clamping blocks are provided on both sides of the terminal seat to lock and position with the positioning portions.
[0011] In some embodiments, the positioning portions at both ends of the terminal frame are offset from each other in the transverse direction.
[0012] In some embodiments, the terminal block is provided with a card block at the top and bottom of each side thereof, respectively, and the two card blocks on the same side of the terminal block are offset from each other in the transverse direction.
[0013] In some embodiments, the first port further includes a cover plate disposed on the terminal seat, and the cover plate and the support platform are respectively located on the upper and lower sides of the first outer end of the first terminal.
[0014] In some embodiments, the cover plate is rotatably connected to the terminal base.
[0015] In some embodiments, a wiring mark is provided on opposite sides of the cover corresponding to each first terminal, and the wiring marks corresponding to the respective first terminals are different.
[0016] On the other hand, the present application provides a motor, comprising a motor housing, a stator, a rotor and a control circuit board arranged in the motor housing, and a connecting component of any of the above items, wherein the stator comprises a three-phase winding, the first terminal of the first port of the connecting component is respectively electrically connected to one phase winding of the three-phase winding, and the second terminal of the second port is electrically connected to the control circuit board.
[0017] In some embodiments, the control circuit board is fixedly connected to the terminal housing of the second port.
[0018] In some embodiments, the motor housing includes a housing base and an end cover, the mounting portion of the connecting assembly includes a first ring portion and a second ring portion, the first ring portion is clamped between the housing base and the end cover, the second ring portion is inserted into the housing base, and the terminal base and the terminal housing are integrally extended from the first ring portion.
[0019] In some embodiments, annular grooves are respectively provided on both axial sides of the first ring portion, and sealing rings are provided in the annular grooves.
[0020] In some embodiments, a sensor is provided on the control circuit board, and a magnetic ring is provided on the rotating shaft of the rotor.
[0021] In yet another aspect, the present application provides a lawn mower comprising any one of the above items and a load driven by the motor.
[0022] Compared to existing technologies, the connection assembly provided in this application is a single-piece structure and includes two distinct connection ports: one for connecting the winding to an external power source, and the other for connecting the circuit board to an external control circuit. This effectively simplifies the motor assembly and electrical connection process and improves the reliability of the electrical connection. A motor employing this connection assembly and a lawn mower using this motor can operate safely and stably. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0024] FIG1 is a schematic structural diagram of a motor according to an embodiment of the present application.
[0025] FIG2 is an exploded view of the motor shown in FIG1 .
[0026] FIG3 is an exploded view of the motor shown in FIG1 from another angle.
[0027] FIG4 is an axial cross-sectional view of the motor shown in FIG1 .
[0028] FIG5 is a schematic structural diagram of a connection assembly of the motor shown in FIG1 .
[0029] FIG. 6 is a further exploded view of the connection assembly shown in FIG. 5 .
[0030] FIG. 7 is an exploded view of the connection assembly shown in FIG. 5 from another angle.
[0031] FIG8 is a schematic diagram of a first terminal of the connecting assembly shown in FIG5 .
[0032] FIG9 is a schematic diagram of the assembly of the connection assembly shown in FIG5 and the motor stator.
[0033] FIG10 is a schematic diagram of the connection assembly shown in FIG5 in an open state.
[0034] FIG. 11 is a schematic diagram of an open state of another embodiment of a connecting assembly.
[0035] FIG12 is a schematic diagram showing the wiring status of the connection components.
[0036] Description of Figure Numbers:
[0037] 10. Motor housing; 12. Housing base; 14. End cover;
[0038] 20. stator; 22. stator core; 24. stator winding; 26. pin;
[0039] 30. Rotor; 32. Rotating shaft; 34. Rotor core; 36. Magnetic ring;
[0040] 40. Control circuit board; 42. Sensor; 44. Perforation;
[0041] 50. Connecting assembly; 51. Mounting portion; 512. First ring portion; 514. Second ring portion; 516. Ring groove;
[0042] 52, first port; 53, second port; 532, terminal housing; 534, second terminal; 536, second outer end; 536, second inner end; 539, stud;
[0043] 54, first terminal; 54a, first inner end; 54b, first outer end; 541, connecting hole;
[0044] 55, terminal block; 551a / 551b, assembly space; 553, partition; 555, clamping block; 557, boss;
[0045] 56, terminal frame; 561, support platform; 563, fixing hole; 565, base plate; 567, nut; 568, positioning portion; 569, positioning hole;
[0046] 57, cover; 571, ear; 573, shaft hole; 58, sealing glue; 59, wiring mark;
[0047] 60. Phase line; 62. Stud; 64. Sealing ring.
[0048] DETAILED DESCRIPTION
[0049] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The accompanying drawings provide exemplary embodiments of the present application to provide a more accurate and thorough understanding of the technical solutions disclosed herein. However, it should be understood that the present application can be implemented in a variety of different forms and is not limited to the embodiments described below.
[0050] The same or similar numbers in the drawings of this application correspond to the same or similar parts; in the description of this application, it should be understood that if there are terms such as "up", "down", "left", "right", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0051] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, scheme B, or schemes in which A and B are satisfied at the same time.
[0052] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0053] The present application relates to a motor, and more particularly to a three-phase motor. Figures 1-4 illustrate a specific embodiment of the motor of the present application, wherein the motor comprises a motor housing 10, a stator 20, a rotor 30, a control circuit board 40, and a connection assembly 50 disposed within the motor housing 10.
[0054] The motor housing 10 includes a housing base 12 and an end cap 14. The housing base 12 is a cylindrical structure with one end open. The end cap 14 is connected to the open end of the housing base 12 by screws or the like. Together, the housing base 12 and the end cap 14 form a space for mounting the stator 20, the rotor 30, and the control circuit board 40. In this embodiment, the motor is an inner rotor motor. The rotor 30 is movably disposed in the center of the stator 20. The rotor 30 includes a rotating shaft 32, one end of which extends outward through the motor housing 10 to connect to a load. The connecting assembly 50 includes a mounting portion 51 and a first port 52 and a second port 53 connected to the mounting portion 51. The mounting portion 51 is used to connect the connecting assembly 50 to the motor housing 10, the first port 52 is used to connect the stator 20 to an external power source, and the second port 53 is used to connect the control circuit board 40 to an external control circuit.
[0055] Specifically, the stator 20 includes a stator core 22 and a stator winding 24 wound around the stator core 22. The stator winding 24 is preferably a three-phase winding, comprising three single-phase windings (U, V, and W), each of which is 120 degrees electrical angle apart. Each phase winding includes a pin 26. Accordingly, as shown in FIG8 , the first port 52 includes three spaced-apart first terminals 54. Each first terminal 54 is generally in the form of a long, thin strip, and includes opposing first inner ends 54a and first outer ends 54b. An external power source, such as a three-phase AC power source or DC power source, is converted to three-phase power via a converter. A phase line 60 (see FIG12 ) is drawn from each of the three phase terminals of the cable. The end of each phase line 60 is connected to the first outer end 54b of one of the first terminals 54. The first inner end 54a of the first terminal 54 is then connected to the pin 26 of the corresponding phase winding of the stator winding 24, thereby electrically connecting the stator winding 24 to the external power source.
[0056] The rotor 30 also includes a rotor core 34 encircling a rotating shaft 32 and a magnet mounted on the rotor core 34. A magnetic ring 36 is also mounted on the rotating shaft 32. A sensor 42, such as a Hall sensor, is mounted on the control circuit board 40 in correspondence with the magnetic ring 36. When the motor starts, the sensor 42 and the magnetic ring 36 work together to detect and provide real-time feedback on the position of the rotor 30, thereby controlling the operation of the entire motor.
[0057] As shown in Figures 5-7, the first port 52 of the connecting assembly 50 also includes a terminal base 55 that carries the first terminal 54, a terminal frame 56 connected to the terminal base 55 to support the first terminal 54, and a cover plate 57 connected to the terminal base 55 to shield the first terminal 54.
[0058] The terminal base 55 can be made of an insulating material such as plastic, and the first terminal 54 can be made of a metal material with good electrical conductivity, such as copper. Preferably, the first terminal 54 is placed in a mold after molding, and the terminal base 55 is formed by overmolding, so that the middle portion of the first terminal 54 is fixed integrally in the terminal base 55, and the first inner end 54a and the first outer end 54b are exposed relative to the terminal base 55. Please refer to Figures 4 and 8 simultaneously. When injection molding the terminal base 55, a sealing compound 58 can be first injected into the mold, and then injection molding is performed. The sealing compound 58 connects the middle portions of the three first terminals 54 together, which can prevent the first terminals 54 from shifting during the injection molding process, thereby improving the product quality and performance of the first port 52 after molding.
[0059] As shown in Figures 2, 3, and 9, the first inner ends 54a of the three first terminals 54 extend into the motor housing 10 and are bent within the motor housing 10 to extend a certain length along the axial direction of the motor. The three pins 26 of the stator winding 24 are respectively provided corresponding to the three first inner ends 54a and are radially closely abutted with the three first inner ends 54a or electrically connected by other means, so that each phase of the stator winding 24 is in contact and conductive with one of the first terminals 54. To facilitate connection with the pins 26, the middle portion of the first terminal 54 can be bent and extended to varying degrees, so that the three first inner ends 54a can be spaced at different distances from each other and face the three pins 26 of the stator winding 24 one by one, while the three first outer ends 54b can be arranged in parallel and spaced apart.
[0060] As shown in Figures 6 and 8, the first outer end 54b of each first terminal 54 is provided with a connection hole 541 for inserting a fixing member, such as a bolt 62, to connect and fix the phase line 60 of the external power supply. In this embodiment, in the vertical direction, the first outer end 54b of the first terminal 54 is approximately located in the middle of the terminal block 55. As a result, the terminal block 55 forms assembly spaces 551a and 551b on the upper and lower sides of the first outer end 54b, respectively, for mounting the terminal holder 56. In the embodiment shown in Figures 5 and 10, the terminal holder 56 is mounted in the assembly space 551a on the upper side of the first outer end 54b, and the cover plate 57 is connected to the bottom of the terminal block 55. In another embodiment, as shown in Figures 11 and 12, the terminal holder 56 is mounted in the assembly space 551b on the lower side of the first outer end 54b, and the cover plate 57 is connected to the top of the terminal block 55. In this way, the first port 52 can have two different structures.
[0061] 7 , the terminal frame 56 includes a plurality of support platforms 561, each of which overlaps with the first outer end 54b of one of the first terminals 54. Preferably, a plurality of partitions 553 are formed in the terminal base 55 to separate the adjacent support platforms 561 / first terminals 54. The support platforms 561 are provided with fixing holes 563 at positions corresponding to the connection holes 541 of the first terminals 54. The fixing holes 563 are preferably screw holes, the aperture of which is slightly smaller than the aperture of the connection holes 541. In this embodiment, the terminal frame 56 also includes a substrate 565, which is detachably connected to the terminal base 55 by screws or the like, and the support platforms 561 extend integrally from the substrate 565 toward the inside of the terminal base 55. In this embodiment, a nut 567 is embedded in each support platform 561, and the fixing hole 563 is formed in the center of the nut 567. Preferably, the nut 567 is placed in a mold after being formed, and the base plate 565 and the support platform 561 of the terminal frame 56 are molded by over molding, so that the nut 567 is fixed in the terminal frame 56 as a whole.
[0062] In this embodiment, the two ends of the substrate 565 are bent to form positioning portions 568. The positioning portions 568 are preferably hollow structures and are formed with positioning holes 569. The terminal block 55 is formed with protruding blocks 555 on both sides. The blocks 555 are preferably wedge-shaped structures that can be engaged with the positioning holes 569 to position the terminal frame 56. Preferably, as shown in Figure 7, the positioning portions 568 / positioning holes 569 at both ends of the substrate 565 are offset in the horizontal direction. Preferably, two blocks 555 are provided on each side of the terminal block 55, one of which is close to the top of the terminal block 55 and the other is close to the bottom of the terminal block 55. The two blocks 555 are also offset in the horizontal direction. The terminal frame 56 is pre-assembled above the terminal block 55 via the top block 555; alternatively, the terminal frame 56 is pre-assembled below the terminal block 55 via the bottom block 55, facilitating subsequent screw connection. The staggered positioning portions 568 / positioning holes 569 and the clamping blocks 555 can prevent the terminal frame 56 from being misaligned during assembly.
[0063] During wiring, the end of the phase line 60 is overlapped with the first outer end 54 b of the corresponding first terminal 54 . Specifically, in the embodiments shown in Figures 5 and 10, the first outer end 54b of the first terminal 54 is located below the support platform 561, the end of the phase line 60 extends into the assembly space 551b on the lower side of the first outer end 54b and is overlapped below the first terminal 54, and the screw rod of the bolt 62 passes through the phase line 60 and the first terminal 54 from bottom to top and is screwed into the support platform 561, and its screw head presses the end of the phase line 60 and the first outer end 54b of the first terminal 54 together; in the embodiments shown in Figures 11 and 12, the first outer end 54b of the first terminal 54 is located above the support platform 561, the end of the phase line 60 extends into the assembly space 551a on the upper side of the first outer end 54b and is overlapped above the first terminal 54, and the screw rod of the bolt 62 passes through the phase line 60 and the first terminal 54 from top to bottom and is screwed into the support platform 561, and its screw head presses the end of the phase line 60 and the first outer end 54b of the first terminal 54 together.
[0064] As shown in Figures 6-7, the cover plate 57 is provided with a wiring identifier 59 corresponding to each first terminal 54, and the wiring identifier 59 corresponding to each first terminal 54 is different. For example, the cover plate 57 is provided with three different wiring identifiers 59 corresponding to the three first terminals 54, namely "U", "V", and "W". The user can clearly understand the correspondence between the three phase lines 60 of the external power supply and the three first terminals 54 according to the wiring identifiers 59, so as to quickly and accurately connect each phase line 60 of the external power supply to the corresponding first terminal 54 of the first port 52, thereby avoiding wiring errors that affect use. Preferably, the cover plate 57 is provided with wiring identifiers 59 on both the inner and outer sides thereof, and the user can directly see the wiring identifiers 59 regardless of whether the cover plate 57 is connected to the bottom or the top of the terminal block 55.
[0065] The terminal block 55 is provided with bosses 557 on both sides of the lateral sides; the edges of the two sides of the cover plate 57 are bent and extended to form ears 571, and the ears 571 are provided with shaft holes 573. During assembly, the bosses 557 of the terminal block 55 are pivotally connected to the shaft holes 573 of the cover plate 57, so that the cover plate 57 and the terminal block 55 are rotatably connected. Preferably, two bosses 557 are provided on each side of the terminal block 55, wherein one boss 557 is close to the top of the terminal block 55 and the other boss 557 is close to the bottom of the terminal block 55. The cover plate 57 is connected to the top of the terminal block 55 through the boss 557 at the top, blocking the top of the terminal block 55; or, the cover plate 57 is connected to the bottom of the terminal block 55 through the boss 557 at the bottom, blocking the bottom of the terminal block 55.
[0066] By rotating the cover 57 relative to the terminal block 55, the first port 52 can be in two different states: open and closed. In the open state, as shown in Figures 10-12, the cover 57 flips outward relative to the terminal block 55 and no longer blocks the first outer end 54b of the first terminal 54. At this time, the phase line 60 of the external power supply can be easily connected to the corresponding first terminal 54. In the closed state, as shown in Figure 5, the cover 57 blocks the first outer end 54b of the first terminal 54 and the phase line 60 connected thereto, preventing dust, sand, gravel, rainwater, grass clippings, etc. from the external environment from affecting the safety and effectiveness of the electrical connection, and preventing short circuits and open circuits.
[0067] As shown in Figures 5, 6, 7, and 9, the second port 53 includes a terminal housing 532 and a plurality of second terminals 534 disposed within the terminal housing 532. The second terminals 534 are spaced apart and arranged in parallel. Each second terminal 534 includes a second outer end 536 extending outside the motor housing 10 and a second inner end 536 extending into the motor housing 10. The second outer end 536 is used to connect to an external control circuit, while the second inner end 536 is plugged into and connected to the control circuit board 40. In this embodiment, the control circuit board 40 is provided with a through-hole 44, and the terminal housing 532 is provided with a stud 539 protruding from the through-hole 44 corresponding to the through-hole 44. During assembly, a screw or the like passes through the through-hole 44 of the control circuit board 40 and screws into the stud 539 of the terminal housing 532, securing the control circuit board 40. The second port 53 not only electrically connects the control circuit board 40 to the external control circuit, but also physically connects to the control circuit board 40, allowing the control circuit board 40 to be positioned within the motor housing 10 and aligned with the magnetic ring 36 of the rotor 30.
[0068] In the present application, the first terminal 54 and the second terminal 534 are placed in a mold after molding, and the terminal seat 55 of the first port 52, the terminal shell 532 of the second port 53, and the mounting portion 51 are simultaneously molded by overmolding. In this way, the connecting assembly 50 as a whole is an integral, non-detachable structure, which makes it more convenient and faster to assemble and connect with other components of the motor. As shown in Figures 4, 5, 6 and 7, the mounting portion 51 is annular as a whole, including a first ring portion 512 and a second ring portion 514, wherein the outer diameter of the first ring portion 512 is larger than the outer diameter of the second ring portion 514, and the terminal seat 55 and the terminal shell 532 extend integrally from the first ring portion 512. During assembly, the first ring portion 512 is sandwiched between the open end of the shell base 12 and the end cover 14, and the second ring portion 514 extends into the shell base 12. Preferably, an annular groove 516 is provided at each axial end of the first ring portion 512, and a sealing ring 64 is provided in each annular groove 516. After assembly, the sealing ring 64 forms a sealed connection between the first ring portion 512 of the mounting portion 51 and the housing base 12 and the end cover 14 , preventing external moisture, dust, etc. from entering the motor housing 10 and affecting the safe operation of the motor.
[0069] The present application also provides a lawn mower including the above-mentioned motor, wherein the motor can be used as a traction motor of the lawn mower, and its rotating shaft 32 is connected to the wheel transmission; or, the motor can also be used as a cutting motor of the lawn mower, and its rotating shaft 32 is connected to the blade transmission. The two different structures of the motor connection assembly 50 can respectively correspond to the motors of the above-mentioned two different applications. In the motor shown in Figures 1-4, the terminal frame 56 is connected to the top of the terminal seat 55, and the rotating shaft 32 extends upward through the end cover 14 of the motor housing 10, preferably serving as a traction motor. In the embodiment shown in Figure 11, the terminal frame 56 is connected to the bottom of the terminal seat 55. At this time, the rotating shaft 32 can extend downward through the housing seat 12 of the motor housing 10, preferably serving as a cutting motor. In some embodiments, a motor type identification can also be provided on the cover plate 57 of the first port 52 of the motor, such as "T" representing a traction motor or "C" representing a cutting motor.
[0070] The connection assembly 50 provided in the present application is constructed as an integrated structure, wherein the first port 52 is used for connecting the stator winding 24 to an external power source, and the second port 53 is used for connecting the control circuit board 40 to an external control circuit, so that the motor can complete the electrical connection conveniently and quickly. Furthermore, the terminal frame 56 of the first port 52 can be selectively connected to the top or bottom of the terminal seat 55, thereby forming a connection assembly 50 with different structures, which is suitable for different types of motors, has good versatility of components, and lowers the cost of the motor. Furthermore, the terminal shell 532 of the second port 53 is fixedly connected to the control circuit board 40, so that the connection assembly 50 also plays the role of supporting and fixing the control circuit board 40, further facilitating the assembly of the motor. The motor using the above-mentioned connection assembly 50 and the lawn mower using the motor can operate safely and stably after completing the electrical connection. Of course, the motor of the present application is not limited to use in lawn mowers.
[0071] It should be noted that the above embodiments merely represent preferred implementations of the present application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the present application. It should be noted that those skilled in the art may, without departing from the spirit of the present application, make various modifications and improvements, such as combining different features from the various embodiments, and all of these modifications and improvements should fall within the scope of protection of the present application.
Claims
1. A connecting component, which is applied to a motor, is characterized in that The connection component includes a mounting portion, a first port, and a second port. The first port includes a terminal base and a plurality of first terminals integrally fixed in the terminal base. The second port includes a terminal housing and a plurality of second terminals integrally fixed in the terminal housing. The terminal base and the terminal housing are integrally extended from the mounting portion. The first terminals are used to connect the stator winding of the motor to an external power supply, and the second terminals are used to connect the control circuit board of the motor to an external control circuit.
2. The connecting component according to claim 1, wherein Each of the first terminals includes an opposite first inner end and a first outer end. The terminal base forms an assembly space on each of the upper and lower sides of each of the first outer ends. The first port further includes a terminal holder, and the terminal holder includes a plurality of support platforms. The support platforms are inserted into one of the assembly spaces on both sides of the first outer end and overlap with the first outer end.
3. The connecting component according to claim 2, characterized in that The terminal holder further includes a substrate detachably connected to the top or bottom of the terminal base, and the support platforms are integrally extended from the substrate.
4. The connecting component according to claim 2, wherein A nut is integrally fixed in each of the support platforms, and a threaded hole is formed in the nut. A connection hole is provided at the outer end of each of the first terminals corresponding to the threaded hole.
5. The connecting component according to claim 2, wherein Positioning portions are bent and extended respectively at the transverse two ends of the terminal holder, and clamping blocks are respectively provided on both sides of the terminal base for snap positioning with the positioning portions.
6. The connecting component according to claim 5, characterized in that, The positioning portions at the two ends of the terminal holder are displaced from each other in the transverse direction.
7. The connecting component according to claim 6, wherein The terminal base is provided with one of the clamping blocks respectively at the top and bottom of each of its sides, and the two clamping blocks on the same side of the terminal base are displaced from each other in the transverse direction.
8. The connecting component according to claim 2, characterized in that, The first port further includes a cover plate covering the terminal base, and the cover plate and the support platforms are respectively located on the upper and lower sides of the first outer end of the first terminal.
9. The connecting component according to claim 8, wherein, The cover plate is rotatably connected to the terminal base.
10. The connecting component according to claim 8, wherein, A wiring identifier is provided on each of the opposite sides of the cover plate corresponding to each of the first terminals, and the wiring identifiers corresponding to the respective first terminals are different from each other.
11. A motor, comprising a motor housing, and a stator, a rotor and a control circuit board disposed within the motor housing, the stator comprising three-phase windings, characterized in that, It further includes the connection component according to any one of claims 1-10. The first terminals of the first port of the connection component are respectively electrically connected to one of the phase windings of the three-phase winding, and the second terminals of the second port are electrically connected to the control circuit board.
12. The motor according to claim 11, characterized in that, The control circuit board is fixedly connected to the terminal housing of the second port.
13. The motor according to claim 11, wherein, The motor housing includes a housing base and an end cover. The mounting portion of the connection component includes a first ring portion and a second ring portion. The first ring portion is clamped between the housing base and the end cover, and the second ring portion is inserted into the housing base. The terminal base and the terminal housing are integrally extended from the first ring portion.
14. The motor according to claim 13, characterized in that, Ring grooves are respectively provided on the two axial sides of the first ring portion, and sealing rings are provided in the ring grooves.
15. The motor according to claim 11, characterized in that, A sensor is provided on the control circuit board, and a magnetic ring is provided on the rotating shaft of the rotor.
16. A lawn mower, characterized in that, It includes the motor according to any one of claims 11-15 and a load driven by the motor.
Citation Information
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