Motor controller assembly and motor

Abstract

The utility model provides a motor controller assembly and a motor. The motor controller assembly comprises a winding power connection terminal and a controller circuit board, wherein a first end of the winding power connection terminal penetrates out of the controller circuit board; the first end is bent, and the bent end face of the first end abuts against a bonding pad on the controller circuit board. According to the invention, the first end of the power connection terminal is bent, so that the first end can be stably and electrically connected with the controller circuit board after penetrating out of the controller circuit board, and a welding process does not need to be adopted for welding and fixing; therefore, the problems that waste gas is generated in the traditional welding process, and welding spots are uneven in size and height due to inconsistent operation of staff are solved.

Description

Technical Field

[0001] The present application belongs to the field of motor technology, and specifically relates to a motor controller component and a motor. Background Art

[0002] The rapid development of the motor market has posed a greater challenge to motor development costs. Existing motor manufacturers are optimizing their structures, process assembly, and other aspects while ensuring high performance and reliability.

[0003] The existing brushless DC plastic-encapsulated motors have two structural forms: built-in controller and external controller. The built-in controller structure often uses terminal pins or power lines to directly weld to the pads of the motor controller, such as Figure 11 and 12 As shown, this ensures the winding is connected to the controller circuit. Traditional welding methods generate waste gas and lead to uneven solder joint sizes and heights due to inconsistent operator operation. These issues require additional air purifiers and increased operator effort, increasing production costs to ensure quality and environmental protection. Utility Model Content

[0004] Therefore, the present application provides a motor controller assembly and a motor, which can solve the problems in the prior art of directly welding the terminal pins or power cords to the pads of the motor controller, generating waste gas, and uneven height of the solder joints due to inconsistent employee operations.

[0005] In order to solve the above problems, the present application provides a motor controller assembly, comprising:

[0006] a winding power terminal and a controller circuit board, wherein a first end of the winding power terminal passes through the controller circuit board;

[0007] The first end is configured to be bent, and a bent end surface of the first end abuts against a soldering pad on the controller circuit board.

[0008] In some embodiments,

[0009] The first end includes a body of the winding power terminal and a first bent portion. The first bent portion is inclined, with one end connected to the body and the other end facing the second end of the winding power terminal.

[0010] In some embodiments,

[0011] The other end of the first bending portion extends in a direction toward the main body to form a second bending portion; the bending end surface includes a side surface of the second bending portion close to the second end.

[0012] In some embodiments,

[0013] The motor controller assembly further includes an insulating sheath, which is sleeved on the body of the winding power terminal and is arranged on both sides of the controller circuit board together with the first end.

[0014] In some embodiments,

[0015] The insulating sheath comprises a U-shaped groove body, and the insulating sheath is sleeved on the main body through an opening of the U-shaped groove body.

[0016] According to another aspect of the present application, a motor is provided, comprising the motor controller assembly as described above.

[0017] In some embodiments,

[0018] The motor further includes a stator assembly. The controller circuit board is arranged on one axial side of the stator assembly. The second end of the winding power terminal is connected to the winding of the stator assembly.

[0019] In some embodiments,

[0020] The stator assembly includes a stator frame. When the motor controller assembly includes an insulating sheath, the insulating sheath is located between the stator frame and the controller circuit board.

[0021] In some embodiments,

[0022] The winding power terminals include a power supply terminal and a capacitor power terminal, and the power supply terminal and the capacitor power terminal are arranged at intervals.

[0023] A motor controller assembly provided in the present application includes: a winding power terminal and a controller circuit board, wherein the first end of the winding power terminal passes through the controller circuit board; the first end is set to a bent shape, and the bent end surface of the first end abuts against the solder pad on the controller circuit board.

[0024] This application has the following beneficial effects:

[0025] By setting the first end of the power terminal to be bent, the first end can be firmly electrically connected to the controller circuit board after passing through the controller circuit board, without the need for welding and fixing it using a welding process, thereby avoiding the generation of waste gas in the traditional welding process and the occurrence of uneven size and height of solder joints due to inconsistent employee operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. The drawings described below are merely exemplary. Those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0027] Figure 1 This is a schematic diagram of the assembly of a motor controller assembly according to an embodiment of the present application;

[0028] Figure 2 This is a top view of the assembly of the motor controller assembly according to an embodiment of the present application;

[0029] Figure 3 A schematic diagram of a portion of the structure of a motor according to an embodiment of the present application;

[0030] Figure 4 This is a schematic structural diagram of a power supply terminal according to an embodiment of the present application;

[0031] Figure 5 Another view of the power supply terminal according to an embodiment of the present application;

[0032] Figure 6 This is a schematic structural diagram of a capacitor power terminal according to an embodiment of the present application;

[0033] Figure 7 This is an enlarged assembly diagram of the power supply terminal of an embodiment of the present application;

[0034] Figure 8 This is an enlarged assembly diagram of the capacitor power terminal according to an embodiment of the present application;

[0035] Figure 9 This is a schematic diagram of the insulating sheath structure of the power terminal of an embodiment of the present application;

[0036] Figure 10 This is a schematic structural diagram of an insulating sheath of a capacitor terminal according to an embodiment of the present application;

[0037] Figure 11 This is a schematic diagram of the assembly structure of a traditional controller circuit board;

[0038] Figure 12 This is a schematic diagram of the structure of a traditional power terminal.

[0039] The reference numerals indicate:

[0040] 1. Shell;

[0041] 2. Stator assembly; 21. Stator core; 22. Stator frame; 23. Stator winding;

[0042] 3. Controller circuit board; 31. First through hole; 32. Second through hole;

[0043] 4. Power supply terminal; 41. First end; 411. First bend; 412. Second bend; 42. Body;

[0044] 5. Capacitor power terminals;

[0045] 6. Insulating sheath of power terminal; 61. U-shaped groove;

[0046] 7. Insulating sheath of capacitor terminal; 71. U-shaped groove. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0048] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0051] See also Figures 1 to 10 As shown, according to an embodiment of the present application, a motor controller assembly includes:

[0052] A winding power terminal and a controller circuit board 3 , wherein the first end 41 of the winding power terminal passes through the controller circuit board 3 ;

[0053] The first end 41 is configured to be bent, and a bent end surface of the first end 41 abuts against a soldering pad on the controller circuit board 3 .

[0054] The present application sets the first end 41 of the winding power terminal to be bent, so that after the first end 41 passes through the controller circuit board 3, it can achieve a stable electrical connection with the controller circuit board 3, without the need to use a welding process for welding and fixing, thereby avoiding the generation of waste gas in the traditional welding process and the occurrence of uneven size and height of solder joints due to inconsistent employee operations.

[0055] The first end 41 of the conventional winding connection terminal also passes through the controller circuit board 3, but the structure of the first end 41 is as follows Figure 12 As shown, after passing through, welding is required to weld the first end 41 to the pad on the controller circuit board 3 to achieve fixation and electrical connectivity. In this application, the first end 41 is set to a bent shape, so that when the first end 41 passes through the controller circuit board 3, the bent first end 41 forms a snap, so that the winding electrical terminal is stably connected to the control circuit board, and at the same time, the bent end surface of the first end 41 abuts against the controller circuit board 3 to achieve electrical connectivity.

[0056] The present application is to modify the structure of the first end 41 of the winding power terminal, and only the first end 41 is changed to a bent structure. Considering that the power terminal is usually a sheet structure, it can be made by bending sheet metal parts into one piece, and the part production has a high degree of forming and low cost.

[0057] Since the first end 41 with the bend passes through the controller circuit board 3, the bend structure protrudes from the controller circuit board 3, and the first end 41 of the winding power terminal is not easily detached from the controller circuit board 3, thereby ensuring the connection stability between the winding power terminal and the controller circuit board 3, and making the assembly process simpler. It is only necessary to insert the first end 41 and pass it through the soldering pad hole of the controller circuit board 3, thereby simplifying the motor assembly process, reducing the welding process of the controller and the stator, reducing failure points, and improving production efficiency.

[0058] Based on the above description, the structural modification of the winding power terminal of the present application is simple, efficient, and highly versatile, and can be extended to the assembly structures of various motor controllers.

[0059] Because the winding power terminals must pass through the controller circuit board 3, a first through-hole 31 and a second through-hole 32 are provided on the controller circuit board 3. The first through-hole 31 facilitates the passage of the winding power terminals for connecting to the power supply, while the second through-hole 32 facilitates the passage of the winding power terminals for connecting to the control wires. The first end 4 has a curved structure, which gives it a certain degree of elasticity. This allows it to be compressed through the first through-hole 31 or the second through-hole 32 on the controller circuit board 3 and then bounce back, securing the power terminals to the controller circuit board 3 and preventing them from detaching.

[0060] In some embodiments,

[0061] The first end 41 includes a body 42 of the winding power terminal and a first bent portion 411 . The first bent portion 411 is tilted, with one end connected to the body 42 and the other end facing the second end of the winding power terminal.

[0062] The specific structure of the first end 41 is a first bent portion 411 that is connected to the body 42 of the winding power terminal and is inclined. The first bent portion 411 extends toward the second end close to the winding power terminal, so that the other end of the first bent portion 411 abuts against the controller circuit board 3, making the first bent portion 411 equivalent to a barb structure to prevent the controller circuit board 3 from detaching.

[0063] Since the winding power terminal itself is a sheet structure, the first bent portion 411 is a cantilever structure. In this way, during the assembly process, the first bent portion 411 is squeezed through the solder pad hole on the controller circuit board 3. After passing through the solder pad hole, it can clamp the controller circuit board 3 to prevent it from detaching from the winding power terminal.

[0064] A plurality of first bending portions 411 may be provided, each bending toward both sides of the body 42 , so as to improve the connection stability between the winding power terminal and the controller circuit board 3 .

[0065] In some embodiments,

[0066] The other end of the first bending portion 411 extends toward the main body 42 to form a second bending portion 412 ; the bending end surface includes a side surface of the second bending portion 412 close to the second end.

[0067] After the first bent portion 411 extends toward the winding electrical terminal, its second end extends toward the main body 42 to form a second bent portion 412. The side surface of the second bent portion 412 close to the second end constitutes a bent end surface, so that the bent end surface and the solder pad are in surface contact, thereby increasing the connectivity area of ​​the electrical connection.

[0068] Simply by bending the first bent portion 411 again, a better electrical connection with the pad can be achieved, with a simple structure, high formability, and easy assembly.

[0069] In some embodiments,

[0070] The motor controller assembly further includes an insulating sheath, which is sleeved on the body 42 of the winding power terminal and is disposed on both sides of the controller circuit board 3 together with the first end 41 .

[0071] In order to protect the insulation between the winding power terminal and other parts of the motor, an insulating sheath is provided on the periphery of the winding power terminal body 42 to form electrical insulation protection and ensure the safety of the equipment.

[0072] The insulating sheath and the first end 41 are respectively arranged on both sides of the controller circuit board 3 , thereby clamping the controller circuit board 3 and improving the structural stability.

[0073] In some embodiments,

[0074] The insulating sheath includes a U-shaped groove, and the insulating sheath is sleeved on the main body 42 through an opening of the U-shaped groove.

[0075] In the traditional structure, there is also an insulating sheath, but since the power terminal in the traditional structure is a pin structure, that is, the first end 41 is not provided with a bending structure, the insulating sheath only needs to be provided with a through hole for the power terminal to pass through; while in the present application, the first end 41 of the winding power terminal is provided with a bending portion, resulting in the traditional insulating sheath structure being unable to be sleeved on the outer periphery of the main body 42, so the insulating sheath of the present application is provided with a U-shaped groove structure, and the opening of the U-shaped groove facilitates the entry of the winding power terminal body 42, thereby realizing the insulation protection of the main body 42 by the insulating sheath.

[0076] According to another aspect of the present application, a motor is provided, comprising the motor controller assembly as described above.

[0077] In some embodiments,

[0078] The motor further includes a stator assembly 2 , the controller circuit board 3 is disposed on one axial side of the stator assembly 2 , and the second end of the winding power terminal is connected to the winding of the stator assembly 2 .

[0079] The above-mentioned motor controller assembly is arranged in the motor housing 1. The specific structure can be that the controller circuit board 3 is arranged on one axial side of the stator assembly 2, and the second end of the winding power terminal is connected to the winding of the stator assembly 2, so that the winding power terminal is electrically connected to the controller circuit board 3.

[0080] In some embodiments,

[0081] The stator assembly 2 includes a stator frame 22 . When the motor controller assembly includes an insulating sheath, the insulating sheath is located between the stator frame 22 and the controller circuit board 3 .

[0082] In the structure where the stator assembly 2 also includes a stator frame 22, the insulating sheath in the motor controller assembly is located between the stator frame 22 and the controller circuit board 3 to prevent electrical conduction between the controller circuit board 3 and the stator assembly 2, thereby improving safety.

[0083] In some embodiments,

[0084] The winding power terminals include a power supply terminal 4 and a capacitor power terminal 5 , and the power supply terminal 4 and the capacitor power terminal 5 are spaced apart.

[0085] As for the winding power terminals, there are two types: power supply terminals 4 and capacitor power terminals 5. There are three power supply terminals 4 to realize the connection of three-phase power supply, and there is one capacitor power terminal 5. The total four power terminals are arranged at intervals. This can ensure that the entire controller circuit board 3 can be connected and fixed at multiple locations, thereby achieving the connection stability of the controller circuit board 3.

[0086] Correspondingly, a U-shaped groove 61 is provided on the insulating sheath 6 of the power supply terminal. Figure 9 As shown, the U-shaped groove 71 structure on the insulating sheath 7 of the capacitor terminal is as shown Figure 10 shown.

[0087] The following is a detailed description taking the brushless DC plastic-encapsulated motor as an example.

[0088] The controller assembly structure of the existing brushless DC plastic-encapsulated motor is as follows: Figure 11 and 12 As shown, the assembly sequence is as follows: insert the power pins and capacitor pins into the stator frame 22. After winding, connect the enameled wire to the pins. Then, cover each pin with an insulating sheath and proceed with injection molding. After injection molding, place the controller circuit board 3 over the power pins and capacitor pin holes. Solder the three power pins and one capacitor pin solder joints.

[0089] This application improves upon the traditional pin structure by bending the extended end of the pin extending from the stator assembly 2 to form a snap-on contact structure, eliminating the welded connection between the pin and the controller. The bent snap-on structure complies with sheet metal processing techniques, and the added bending structure provides a certain degree of compression and rebound deformation resistance.

[0090] The assembly sequence is as follows: insert the power terminal 4 and the capacitor terminal 5 into the stator frame 22, and extend the bottom of the capacitor terminal 5 into the stator core 21 to conduct with the stator core 21; after the winding is completed, crimp and weld the enameled wire to the second end of the power terminal 4; then insert the insulating sheath of the power terminal and the insulating sheath of the capacitor terminal 5 respectively. The sheath structure cannot be directly inserted due to the snap-on structure of the terminal, so a simple path is designed for insertion, such as Figure 9 and 10 As shown, a U-shaped groove structure is provided. This structure can effectively ensure that the power terminals are not squeezed and displaced by the plastic packaging material during injection molding, and can also serve as an injection molding positioning mark. After the injection molding is completed, the controller circuit board 3 and each power terminal are placed in the hole and pressed down. The buckle of the squeezed terminal is deformed and rebounded, and the motor controller is fastened and installed. At this time, the lower edge of the buckle of the power terminal has a certain area of ​​contact with the pad on the controller circuit board 3, which can ensure that the stator winding 23 and the controller circuit are conductive.

[0091] The above-mentioned power connection terminal is not limited to the single-sided buckle shown in the figure, and can be provided with a double-sided buckle or other similar buckle structure according to the actual structural position allowance and the controller board frame drawing limitation.

[0092] The electrical terminals are not limited to a single material such as brass H65. Other materials with good conductivity and certain deformation and strength can be set according to the structure size of the stator and controller actually used, or different materials can be used as asynchronous assemblies.

[0093] The above-mentioned motor is not limited to plastic-encapsulated motors, and can be applied to different types of motors that require built-in controllers.

[0094] It is easy for those skilled in the art to understand that the above embodiments can be freely combined and superimposed without conflict.

[0095] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above description is merely a preferred embodiment of the present application. It should be noted that those skilled in the art can make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A motor controller assembly, characterized in that: include: A winding power terminal and a controller circuit board (3), wherein a first end (41) of the winding power terminal passes through the controller circuit board (3); The first end (41) is configured to be bent, and the bent end surface of the first end (41) abuts against a soldering pad on the controller circuit board (3).

2. The motor controller assembly according to claim 1, wherein: The first end (41) comprises a body (42) of the winding power terminal and a first bent portion (411); the first bent portion (411) is arranged obliquely, with one end connected to the body (42) and the other end arranged toward the second end close to the winding power terminal.

3. The motor controller assembly according to claim 2, wherein: The other end of the first bending portion (411) extends in a direction toward the main body (42) to form a second bending portion (412); the bending end surface includes a side surface of the second bending portion (412) close to the second end.

4. The motor controller assembly according to any one of claims 1 to 3, characterized in that: The motor controller assembly further comprises an insulating sheath, which is sleeved on the body (42) of the winding power terminal and is arranged on both sides of the controller circuit board (3) with the first end (41).

5. The motor controller assembly according to claim 4, characterized in that: The insulating sheath comprises a U-shaped groove body, and the insulating sheath is sleeved on the main body (42) through an opening of the U-shaped groove body.

6. A motor, characterized in that: The motor controller assembly comprises the motor controller assembly according to any one of claims 1 to 5.

7. The motor according to claim 6, characterized in that: The motor further comprises a stator assembly (2), the controller circuit board (3) is arranged on one axial side of the stator assembly (2), and the second end of the winding power terminal is connected to the winding of the stator assembly (2).

8. The motor according to claim 7, characterized in that: The stator assembly (2) includes a stator frame (22), and when the motor controller assembly includes an insulating sheath, the insulating sheath is located between the stator frame (22) and the controller circuit board (3).

9. The motor according to claim 7 or 8, characterized in that: The winding power connection terminal comprises a power supply power connection terminal (4) and a capacitor power connection terminal (5), and the power supply power connection terminal (4) and the capacitor power connection terminal (5) are arranged at intervals.

Images