Hub motor and bicycle

Abstract

The embodiment of the utility model provides a hub motor and a bicycle, the hub motor is provided with a connector (namely a pin assembly and a jack assembly), one end of the pin assembly is connected with one end of the jack assembly, and the other end of the pin assembly is connected with a PCB and is connected with a leading-out end of a winding wire and / or a sensor through a built-in circuit of the PCB. And the other end of the jack assembly is connected with the lead assembly. According to the embodiment of the utility model, the electric appliance circuit of the hub motor can be connected only by connecting the pin assembly and the jack assembly, so that the lead outgoing assembly of the hub motor is simple and the connection is reliable, and when the lead assembly fails, the lead assembly can be replaced only by disassembling the jack assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a hub motor and a bicycle. Background Art

[0002] A hub motor is an electric motor installed inside a vehicle wheel hub to provide power and driving force. In a hub motor, wires are usually required to be led out, and the lead-out form of the existing bicycle through-axle rear hub motor is to use a lead assembly, that is, the lead assembly passes through the wire hole from the top cover and then passes through the shell, wherein the shape of the wire hole on the top cover is a circular wire hole matching the circular lead assembly.

[0003] Inside the wheel hub motor, the electrical circuit adopts the layout of lead routing, that is, the three-phase lead is connected to the phase lead end of the winding copper wire, the three-phase lead routing is fixed above the winding copper wire, the PCB board is installed and fixed on the top cover, and the Hall signal lead is connected to the Hall sensor through the built-in copper circuit of the PCB board, so that the three-phase lead and the Hall signal lead are brought together to form a lead assembly, and the lead assembly passes through the wire hole of the top cover. This lead routing form has low efficiency, complex assembly process, poor connection reliability, and cannot be quickly replaced when the lead assembly fails. Utility Model Content

[0004] The utility model aims to provide a hub motor and a bicycle, aiming to solve the problems of low efficiency of lead wire outlet form of the existing hub motor, complex assembly process, poor connection reliability, and inability to quickly replace the lead wire assembly when it fails.

[0005] An embodiment of the utility model provides a hub motor, comprising a PCB board, a winding wire and / or a sensor, wherein the lead-out end of the winding wire and / or the sensor is arranged on the PCB board, and further comprising: a pin assembly and a jack assembly, wherein one end of the pin assembly is connected to one end of the jack assembly, the other end of the pin assembly is connected to the PCB board and is connected to the lead-out end of the winding wire and / or the sensor through the built-in circuit of the PCB board, and the other end of the jack assembly is connected to the lead assembly.

[0006] Specifically, the pin assembly includes a three-phase pin and / or a Hall pin, and a protective portion is provided on the periphery of the three-phase pin and / or the Hall pin.

[0007] Specifically, it also includes a top cover, on which a connecting portion is provided, and the pin assembly and the jack assembly are both installed on the connecting portion.

[0008] Specifically, a connecting hole is provided through the top of the connecting portion, the pin assembly is installed in the connecting hole, and one end of the pin assembly extends out of the connecting hole to be connected with the jack assembly.

[0009] Specifically, an outer side of the connecting portion is surrounded by an external thread, and an inner side of the jack assembly is correspondingly provided with an internal thread, and the jack assembly is connected to the connecting portion via the internal thread and the external thread.

[0010] Specifically, the jack assembly includes an annular jack seat and a locking portion, the locking portion is installed on the side of the annular jack seat facing the connecting portion, the internal thread is arranged on the inner side of the locking portion, and the locking portion is connected to the outer side of the connecting portion.

[0011] Specifically, an annular extension portion is protrudingly provided on one side of the annular socket seat facing the locking portion, an annular groove is provided on the inner side of the locking portion, and the annular extension portion is snap-connected in the annular groove.

[0012] Specifically, a pin hole is provided at a position of the annular extension portion corresponding to the connecting hole, and one end of the pin assembly is connected to the pin hole.

[0013] Specifically, the hub motor further includes: a positioning portion, a positioning hole is provided through the middle area of ​​the connecting portion, and the positioning portion is installed in the positioning hole.

[0014] An embodiment of the utility model further provides a bicycle, comprising the hub motor as described above.

[0015] The utility model provides a hub motor and a bicycle. The hub motor is provided with a connector (i.e., a pin assembly and a jack assembly). One end of the pin assembly is connected to one end of the jack assembly. The other end of the pin assembly is connected to a PCB board and connected to the lead-out end of the winding wire and / or the sensor through the built-in circuit of the PCB board. The other end of the jack assembly is connected to a lead assembly. In this embodiment, the electrical circuit of the hub motor can be connected by simply connecting the pin assembly and the jack assembly, so that the lead-out wire assembly of the hub motor is simple and the connection is reliable. In addition, when the lead assembly fails, the lead assembly can be replaced by simply disassembling the jack assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1An exploded diagram of a hub motor provided by an embodiment of the utility model;

[0018] Figure 2 An internal structure diagram of a hub motor provided by an embodiment of the utility model;

[0019] Figure 3 It is the connection diagram of the pin assembly and the PCB board;

[0020] Figure 4 Another internal structure diagram of a hub motor provided by an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the installation of the housing and the top cover;

[0022] Figure 6 An overall structural diagram of a hub motor provided by an embodiment of the utility model;

[0023] Figure 7 This is the structural diagram of the top cover;

[0024] Figure 8 A structural diagram of the jack assembly.

[0025] Description of the symbols in the figure:

[0026] 1. Pin assembly; 11. Three-phase pin; 12. Hall pin; 13. Protection unit;

[0027] 2. Jack assembly; 21. annular jack seat; 211. annular extension portion; 212. pin hole; 22. locking portion; 221. internal thread; 222. annular slot;

[0028] 3. PCB board;

[0029] 4. Winding wire; 41. Lead-out terminal;

[0030] 5. Sensor;

[0031] 6. Shell;

[0032] 7. Top cover; 71. Connecting portion; 72. Connecting hole; 73. External thread; 74. Positioning hole;

[0033] 8. Positioning unit;

[0034] 9. Lead assembly;

[0035] 10. Bottom cover. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0038] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0039] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0040] See also Figure 1-Figure 4 An embodiment of the utility model provides a hub motor, including a PCB board 3, a winding wire 4 and / or a sensor 5, wherein the lead-out end 41 of the winding wire 4 and / or the sensor 5 are arranged on the PCB board 3, and also includes: a pin assembly 1 and a jack assembly 2, one end of the pin assembly 1 is connected to one end of the jack assembly 2, the other end of the pin assembly 1 is connected to the PCB board 3 and is connected to the lead-out end 41 of the winding wire 4 and / or the sensor 5 through the built-in circuit of the PCB board 3, and the other end of the jack assembly 2 is connected to the lead assembly 9.

[0041] In this embodiment, the electrical circuit inside the hub motor is set as a PCB routing form, so that the pin assembly 1 is connected to the lead-out end 41 of the winding wire 4 and / or the sensor 5 through the built-in circuit of the PCB board 3, so that the current is transmitted to the winding wire 4 and / or the sensor 5 to realize the normal operation of the hub motor, and one end of the pin assembly 1 is also connected to one end of the jack assembly 2, and the other end of the jack assembly 2 is directly connected to the lead assembly 9, so that the routing of the entire electrical circuit is more beautiful and the assembly efficiency is high, thereby improving the reliability of the hub motor connection. In this embodiment, the pin assembly 1 and the jack assembly 2 are set as connectors, so that the output of the lead assembly and the routing of the electrical circuit become simpler, and the connection and disconnection between the pin assembly 1 and the jack assembly 2 become easier, and the lead assembly 9 is directly connected to the jack assembly 2. If the lead assembly 9 fails, there is no need to disassemble the hub motor, only the jack assembly 2 needs to be disassembled to replace the lead assembly 9.

[0042] In a specific embodiment, Figure 2-Figure 4 As shown, the sensor 5 is arranged at the bottom of the PCB board 3, the winding wire 4 is arranged below the PCB board 3, and the lead end 41 of the winding wire 4 is arranged at the top of the PCB board 3. By connecting the pin assembly 1 to the PCB board 3, the connection with the winding wire 4 and / or the sensor 5 is achieved through the built-in circuit of the PCB board 3. Among them, the sensor 5 can be a Hall sensor.

[0043] Specifically, Figure 2 As shown, the pin assembly 1 includes a three-phase pin 11 and / or a Hall pin 12 , and a protective portion 13 is provided on the periphery of the three-phase pin 11 and / or the Hall pin 12 .

[0044] In this embodiment, the pin assembly 1 includes a three-phase pin 11 and / or a Hall pin 12, wherein the three-phase pin 11 is 3 thick pins, the Hall pin 12 is 6 thin pins, the other ends of the three-phase pin 11 and the Hall pin 12 are both welded on the PCB board, the three-phase pin 11 is connected to the lead-out end 41 of the winding wire 4 through the built-in circuit of the PCB board 3, and the Hall pin 12 is connected to the Hall sensor through the built-in circuit of the PCB board 3, thereby improving the connection efficiency. In the specific implementation, in order to prevent the pin assembly 1 from short-circuiting, a protective part 13 is provided on the periphery of each pin to isolate the pin assembly 1 from contact with other components, and the protective part 13 can be wrapped with a layer of plastic on the periphery of the pin by means of plastic coating.

[0045] Specifically, Figure 1-Figure 6 As shown, it also includes a top cover 7 , on which a connecting portion 71 is provided, and the pin assembly 1 and the socket assembly 2 are both mounted on the connecting portion 71 .

[0046] In this embodiment, the hub motor also includes a top cover 7, the PCB board 3, the winding wire 4 and the sensor 5 are all arranged inside the top cover 7, the pin assembly 1 and the socket assembly 2 are arranged outside the top cover 7, and a connecting portion 71 is protruding from the top of the top cover 7. The pin assembly 1 and the socket assembly 2 are both installed on the connecting portion 71, which makes the maintenance of the two components more convenient. When the component needs to be replaced or repaired, the corresponding component can be directly pulled out without opening the top cover 7.

[0047] In a specific implementation, the hub motor also includes a housing 6 and a bottom cover 10. The bottom of the top cover 7 is connected to the top of the bottom cover 10. The bottom cover 10 and the top cover 7 cooperate with each other to wrap the PCB board 3, the winding wire 4 and the sensor 5 to form an integral component. Figure 6 As shown, the housing 6 is installed outside the integral component and wraps the integral component, thereby reducing the movement and shaking between the components and making the entire hub motor more beautiful. In addition, a mounting hole is provided on the housing 6, and the connecting portion 71 extends out of the mounting hole, so that when the pin assembly 1 and the socket assembly 2 are maintained, there is no need to remove the housing 6.

[0048] Specifically, Figure 5-Figure 7 As shown, a connection hole 72 is provided through the top of the connection portion 71 , the pin assembly 1 is installed in the connection hole 72 , and one end of the pin assembly 1 extends out of the connection hole 72 to be connected to the jack assembly 2 .

[0049] In this embodiment, a corresponding number of connecting holes 72 are provided on the top of the connecting portion 71 according to the number of pins. The multiple connecting holes 72 are circumferentially spaced along the top of the connecting portion 71. All three-phase pins 11 and Hall pins 12 are correspondingly installed in the connecting holes 72, and one end of the pin assembly 1 extends out of the connecting hole 72. The pin assembly and the connecting portion 71 form a pin structure, which is convenient for connection with the jack assembly 2.

[0050] Specifically, Figure 7 and Figure 8 As shown, an outer side of the connection portion 71 is surrounded by an external thread 73 , and an inner side of the jack assembly 2 is correspondingly provided with an internal thread 221 . The jack assembly 2 is connected to the connection portion 71 via the internal thread 221 and the external thread 73 .

[0051] In this embodiment, in order to make the connection between the jack assembly 2 and the pin assembly 1 more stable, it is preferred to provide an external thread 73 around the outer side of the connection portion 71, and provide an internal thread 221 around the corresponding position on the inner side of the jack assembly 2. The jack assembly 2 is connected to the pin assembly and locked by the external thread 73 and the internal thread 221, so that the jack assembly 2 is firmly wrapped around the outer periphery of the connection portion 71, and at the same time, a stable plug-in connection is achieved with the pin assembly 1. In this embodiment, by using the external thread 73 and the internal thread 221 for matching connection, the installation and removal process of the jack assembly 2 is simpler and more convenient, and the connection or removal can be achieved by simply rotating the jack assembly 2.

[0052] Specifically, Figure 7 and Figure 8 As shown, the jack assembly 2 includes an annular jack seat 21 and a locking portion 22, the locking portion 22 is installed on the side of the annular jack seat 21 facing the connecting portion 71, the internal thread 221 is arranged on the inner side of the locking portion 22, and the locking portion 22 is connected to the outer side of the connecting portion 71.

[0053] In this embodiment, one side of the annular jack seat 21 is connected to the lead assembly 9, and the locking portion 22 is installed on the side of the annular jack seat 21 facing the connecting portion 71, that is, the bottom of the annular jack seat 21, and an internal thread 221 is provided on the inner side of the locking portion 22. When the jack assembly 2 is installed on the connecting portion 71, the locking portion 22 is connected to the outer side of the connecting portion 71, and the annular jack seat 21 is connected to the top of the connecting portion 71. The locking portion 22 is locked and connected with the external thread 73 on the outer side of the connecting portion 71 through the internal thread 221, and the annular jack seat 21 is connected to the pin assembly 1.

[0054] Specifically, Figure 8 As shown, an annular extension portion 211 is protrudingly provided on one side of the annular socket 21 facing the locking portion 22 , and an annular groove 222 is provided on the inner side of the locking portion 22 , and the annular extension portion 211 is snap-fitted into the annular groove 222 .

[0055] In this embodiment, the annular extension portion 211 is located between the locking portion 22 and the annular jack seat 21, and the annular groove 222 and the internal thread 221 are both arranged on the inner side of the locking portion 22. The annular groove 222 is closer to one side of the annular extension portion 211 than the internal thread 221, which facilitates the annular extension portion 211 to be snapped into the annular groove 222, thereby making the connection between the annular jack seat 21 and the locking portion more stable.

[0056] Specifically, Figure 8 As shown, a pin hole 212 is provided at a position of the annular extension portion 211 corresponding to the connection hole 72 , and one end of the pin assembly 1 is connected to the pin hole 212 .

[0057] In this embodiment, in order to be tightly connected with the pin assembly 1, it is preferred to set the pin hole 212 at the position corresponding to the connection hole 72. After the jack assembly 2 is installed on the connection part 71, the annular extension part 211 is located at the top of the connection part 71. At this time, the pin assembly 1 is not connected with the pin hole 212. The locking part 22 is rotated toward the connection part 71. Through the cooperation of the external thread 73 and the internal thread 221, the locking part 22 is locked and connected with the connection part 71. At this time, one end of the pin assembly 1 is connected with the pin hole 212. In specific implementation, a sealing rubber can also be set on the side of the annular extension part 211 facing the connection part 71 to waterproof the insertion point of the pin assembly 1 and the jack assembly 2.

[0058] Specifically, Figure 1 and Figure 7 As shown, the hub motor further includes: a positioning portion 8 , a positioning hole 74 is provided through the middle area of ​​the connecting portion 71 , and the positioning portion 8 is installed in the positioning hole 74 .

[0059] In this embodiment, the middle area of ​​the connecting portion 71 is hollowed out to form a positioning hole 74 in the hollowed-out area. There is a distance between the positioning hole 74 and the outer edge of the connecting portion 71. This area is used to set the connecting hole 72. The positioning portion 8 is installed in the positioning hole 74 to provide precise positioning for the jack assembly 2, making the assembly process of the jack assembly 2 and the connecting portion 71 simpler and faster, thereby more accurately aligning and connecting the jack assembly 2 and the pin assembly 1, thereby improving the connection stability.

[0060] An embodiment of the utility model further provides a bicycle, comprising the hub motor as described above.

[0061] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A hub motor, comprising a PCB board, a winding wire and / or a sensor, wherein: The lead-out end of the winding wire and / or the sensor is arranged on the PCB board, and is characterized in that it also includes: a pin assembly and a jack assembly, one end of the pin assembly is connected to one end of the jack assembly, the other end of the pin assembly is connected to the PCB board and connected to the lead-out end of the winding wire and / or the sensor through the built-in circuit of the PCB board, and the other end of the jack assembly is connected to the lead assembly.

2. The wheel hub motor according to claim 1, characterized in that: The pin assembly includes a three-phase pin and / or a Hall pin, and a protective portion is provided on the periphery of the three-phase pin and / or the Hall pin.

3. The wheel hub motor according to claim 1, characterized in that: It also includes a top cover, on which a connecting portion is arranged, and the pin assembly and the jack assembly are both installed on the connecting portion.

4. The wheel hub motor according to claim 3, characterized in that: A connecting hole is provided through the top of the connecting portion, the pin assembly is installed in the connecting hole, and one end of the pin assembly extends out of the connecting hole to be connected with the socket assembly.

5. The wheel hub motor according to claim 4, characterized in that: The outer side of the connecting portion is surrounded by an external thread, and the inner side of the jack component is correspondingly provided with an internal thread, and the jack component is connected to the connecting portion through the internal thread and the external thread.

6. The wheel hub motor according to claim 5, characterized in that: The jack assembly includes an annular jack seat and a locking portion, wherein the locking portion is installed on a side of the annular jack seat facing the connecting portion, the internal thread is arranged on the inner side of the locking portion, and the locking portion is connected to the outer side of the connecting portion.

7. The wheel hub motor according to claim 6, characterized in that: An annular extension portion is protruded from one side of the annular socket seat facing the locking portion, an annular clamping groove is provided on the inner side of the locking portion, and the annular extension portion is clamped in the annular clamping groove.

8. The wheel hub motor according to claim 7, characterized in that: The annular extension portion is provided with a pin hole at a position corresponding to the connecting hole, and one end of the pin assembly is connected to the pin hole.

9. The wheel hub motor according to claim 3, characterized in that: Also includes: A positioning portion, wherein a positioning hole is provided through the middle area of ​​the connecting portion, and the positioning portion is installed in the positioning hole.

10. A bicycle, characterized in that: It comprises the hub motor as claimed in any one of claims 1 to 9.

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