Controller and electric driving system

Abstract

The embodiment of the utility model relates to a controller and an electric driving system. The controller comprises a plurality of conductive columns arranged at intervals, a PCB, a fastener and a supporting piece. The conductive column is provided with a welding part and a connecting part which are connected, the welding part is welded to the PCB, and the connecting part is used for being electrically connected with external equipment; and the PCB is locked and fixed on the supporting piece through the fastening piece. As the welding part of the conductive column is welded to the PCB, the conductive column does not need to be additionally provided with an installation part for being locked with the PCB, the size of the conductive column is small, and the layout flexibility of the conductive column on the PCB is high. In addition, the conductive column is welded on the PCB, and the PCB is locked on the supporting piece through the fastener, so that the risk that the conductive column rotates due to the torque when the conductive column is locked with the external equipment is greatly reduced.

Description

Technical Field

[0001] This application relates to the field of controller technology, and more particularly to a controller and an electric drive system. Background Technology

[0002] Controllers play a crucial role in modern transportation, especially in electric drive systems such as electric bicycles, electric motorcycles, and electric cars. These controllers are typically equipped with multiple conductive posts that not only connect to the PCB but also connect the power supply and motor directly or indirectly, ensuring smooth power transmission. In practical applications, when connecting the conductive posts to the power supply or motor, a secure locking mechanism must be ensured. However, this locking process is often challenging because torque is generated during locking, and it is necessary to prevent the conductive posts from rotating under the influence of torque.

[0003] The applicant of this application discovered that, in order to prevent the conductive pillar from rotating, the conductive pillar is usually locked and fixed to other auxiliary equipment (e.g., support components including heat sinks). This requires the conductive pillar to extend radially to form a mounting part for locking. The overall size of the conductive pillar is large, and the layout flexibility of the conductive pillar on the PCB is insufficient. Utility Model Content

[0004] In view of the above problems, embodiments of this application provide a controller and an electric drive system that overcome or at least partially solve the above problems.

[0005] According to one aspect of the present application, a controller is provided, including a plurality of conductive posts spaced apart, a PCB, fasteners, and a support member; the conductive posts have connected welding portions and connecting portions, the welding portions are welded to the PCB, and the connecting portions are used for electrical connection to external devices; the PCB is secured to the support member by the fasteners.

[0006] In some embodiments, the controller further includes a control board, and the fasteners secure the control board, the PCB, and the support member.

[0007] In some embodiments, the fastener includes a fastening component and a support post, the PCB is stacked on the support member, one end of the support post locks the PCB and the support member, the other end of the support post supports the control board, and the fastening component locks the control board to the other end of the support post.

[0008] In some embodiments, the support member is a heat sink.

[0009] In some embodiments, the controller further includes a housing having a receiving cavity and an opening communicating with the receiving cavity, the PCB being received in the receiving cavity, the housing being disposed on the support member, and the support member closing the opening.

[0010] In some embodiments, the controller further includes a plurality of conductive elements, which are covered and fixed by the housing, and the plurality of conductive elements are insulated from each other by the housing; one end of each conductive element is exposed outside the housing for electrical connection with an external device, and the other end of each conductive element is electrically connected to the connection portion of the conductive post.

[0011] In some embodiments, one end of the conductive element is recessed to form a first mounting groove, which is used for electrical connection with an external device.

[0012] In some embodiments, the controller further includes a plurality of snap-fit ​​components, the other end of the conductive component is recessed to form a second mounting groove, the number of snap-fit ​​components is the same as the number of conductive components, one snap-fit ​​component is disposed in the second mounting groove of one conductive component, the number of conductive posts is the same as the number of snap-fit ​​components, and the connecting portion of one conductive post is snapped into one snap-fit ​​component.

[0013] In some embodiments, the number of conductive posts is five, wherein the connecting portions of two of the conductive posts are used for electrical connection to a power source, and the connecting portions of the other three conductive posts are used for electrical connection to a motor.

[0014] According to one aspect of the embodiments of this application, an electric drive system is provided, including the aforementioned controller.

[0015] The beneficial effects of this application's embodiments are as follows: A controller is provided, including a plurality of conductive posts spaced apart, a PCB, fasteners, and a support member; each conductive post has a welded portion and a connecting portion connected to it, the welded portion being welded to the PCB, and the connecting portion being used for electrical connection to an external device; the PCB is secured to the support member by the fasteners. Since the welded portion of the conductive post is welded to the PCB, there is no need for the conductive post to have a separate mounting portion for locking to the PCB; the conductive post is smaller in size, and its layout on the PCB is highly flexible. Furthermore, since the conductive post is welded to the PCB, and the PCB is secured to the support member by the fasteners, the risk of the conductive post rotating due to torque when locking to an external device is significantly reduced. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with the corresponding pictures in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Conductive elements with the same reference numerals in the drawings represent similar conductive elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0017] Figure 1 This is a schematic diagram of the controller provided in an embodiment of this application.

[0018] Figure 2 This is an exploded view of the controller provided in an embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the housing and conductive components provided in the embodiments of this application.

[0020] Figure 4 The embodiments of this application provide the following: Figure 1 A sectional view of P.

[0021] The labels in the attached diagram are as follows:

[0022] 100. Controller;

[0023] 10. Housing; 20. Conductive component; 30. Snap-fit ​​component; 40. PCB; 50. Conductive post; 60. Fastener; 70. Control board; 80. Support component;

[0024] 11. Receiving cavity; 12. Opening; 13. Clip;

[0025] 101. Covering part; 1011. Through hole;

[0026] 21. First mounting slot; 22. Second mounting slot;

[0027] 51. Welded part; 52. Connecting part;

[0028] 61. Fastening parts; 62. Support column;

[0029] 81. Card interface. Detailed Implementation

[0030] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when a conductive element is described as being "fixed to" another conductive element, it can be directly attached to the other conductive element, or one or more intermediate conductive elements may exist between them. When a conductive element is described as being "connected" to another conductive element, it can be directly connected to the other conductive element, or one or more intermediate conductive elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0032] Please see Figure 1 and Figure 2 The controller 100 includes a housing 10, a plurality of conductive elements 20, a plurality of snap-fit ​​elements 30, a PCB 40, a plurality of spaced-apart conductive posts 50, fasteners 60, a control board 70, and a support member 80. The housing 10 is connected to the support member 80. The housing 10 covers and fixes the conductive elements 20, and the plurality of conductive elements 20 are insulated from each other through the housing 10. One end of each conductive element 20 is exposed outside the housing 10 for electrical connection to external devices (e.g., power supplies and motors). The number of conductive elements 20, snap-fit ​​elements 30, and conductive posts 50 is the same and they correspond one-to-one. The other end of one conductive element 20 is connected to one conductive post 50 through one snap-fit ​​element 30. The conductive post 50 is electrically connected to the PCB (Printed Circuit Board) 40, so that the other end of the conductive element 20 is electrically connected to the PCB 40. The fasteners 60 secure the control board 70, the PCB 40, and the support member 80. Smooth power transmission is achieved through the conductive components 20, snap-fit ​​components 30, conductive posts 50, and PCB 40 in the controller 100.

[0033] For the aforementioned housing 10 and support 80, please refer to Figure 3 and Figure 4 The housing 10 is provided with a receiving cavity 11 and an opening 12 communicating with the receiving cavity 11. The PCB 40 is received in the receiving cavity 11. At least a portion of the control board 70, the conductive post 50 and the fastener 60 are also received in the receiving cavity 11. The housing 10 is disposed on the support member 80, and the support member 80 closes the opening 12.

[0034] In some embodiments, the housing 10 is provided with a buckle 13, and the support member 80 is provided with a card interface 81. The buckle 13 is engaged with the card interface 81 to achieve the connection between the housing 10 and the support member 80. The connection method between the housing 10 and the support member 80 is not limited to the above-described buckle 13 and card interface 81 scheme.

[0035] It is understood that there can be multiple buckles 13 and multiple card interfaces 81, with one buckle 13 snapping into one card interface 81.

[0036] In some embodiments, the support member 80 is a heat sink.

[0037] In some implementations of this application, the housing 10 has multiple covering portions 101, the number of which is the same as the number of conductive elements 20. The housing 10 is injection molded onto the conductive elements 20, so that one covering portion 101 covers and fixes one conductive element 20. The covering portion 101 has a through hole 1011, and the other end of the conductive element 20 is electrically connected to the PCB 40 through the through hole 1011. It is understood that the covering portion 101 covers and fixes the conductive element 20, and one end of the conductive element 20 is exposed in the covering portion 101 for electrical connection with an external device. It is also understood that when the housing 10 has a receiving cavity 11, the through hole 1011 connects to the receiving cavity 11, so that the other end of the conductive element 20 is electrically connected to the conductive post 50 disposed in the receiving cavity 11 through the through hole 1011, thereby electrically connecting the other end of the conductive element 20 to the PCB 40. Since the housing 10 (specifically the covering part 101) covers and fixes the conductive element 20, when the conductive element 20 is locked with external equipment (such as power supply and motor), the risk of the conductive element 20 rotating due to the locking torque is greatly reduced. It is not necessary to separately lock the conductive element 20 to the housing or other auxiliary equipment (such as heat sink), which is convenient and quick.

[0038] It is worth noting that the way the shell 10 (specifically the covering part 101) covers and fixes the conductive element 20 is not limited to the above-described injection molding, but can also be in other forms, such as the raw material of the shell 10 located in the mold being solidified and formed on the conductive element 20.

[0039] In some embodiments, the cross-section of the conductive element 20 is polygonal, such as triangular, quadrilateral, pentagonal, or hexagonal. Because the cross-section of the conductive element 20 is polygonal, compared to a circular cross-section, the risk of the conductive element 20 rotating due to locking torque is reduced.

[0040] Here, the axial direction of the conductive element 20 is defined as the distance from one end of the conductive element 20 to the other end of the conductive element 20, and the cross-section of the conductive element 20 refers to the planar shape presented when the conductive element 20 is cut along the axial direction perpendicular to the conductive element 20.

[0041] In some implementations of this application, one end of the conductive element 20 is recessed to form a first mounting groove 21, which is used for electrical connection with an external device.

[0042] In some implementations of this application, the other end of the conductive element 20 is recessed to form a second mounting groove 22, which is used for the conductive element 20 to be electrically connected to the PCB 40 via the snap-fit ​​element 30 and the conductive post 50. It is understood that the through hole 1011 of the aforementioned covering portion 101 communicates with the second mounting groove 22.

[0043] In some implementations of this application, the conductive element 20 is made of aluminum.

[0044] In some embodiments, the number of conductive elements 20 is five, wherein two of the conductive elements 20 are electrically connected to a power source, and the other three of the conductive elements 20 are electrically connected to a motor.

[0045] The number of the aforementioned snap-fit ​​connectors 30 is the same as the number of the conductive components 20. Each snap-fit ​​connector 30 is disposed in the second mounting slot 22 of a conductive component 20. The snap-fit ​​connector 30 is used to snap onto the conductive post 50 to achieve electrical connection between the conductive component 20, the snap-fit ​​connector 30, the conductive post 50, and the PCB 40. It is understood that the snap-fit ​​connector 30 is conductive.

[0046] In some embodiments, the snap-fit ​​element 30 is a snap-fit ​​claw. By providing the snap-fit ​​element 30, the snap-fit ​​element 30 absorbs errors between the conductive element 20 and the conductive post 50, thereby achieving a reliable electrical connection between the conductive element 20 and the conductive post 50.

[0047] Regarding the PCB40 and conductive pillars 50 mentioned above, the conductive pillars 50 are spaced apart on the PCB40, and the multiple conductive pillars 50 are insulated from each other.

[0048] In some implementations of this application, the conductive post 50 has a connecting portion 51 and a connecting portion 52. The connecting portion 51 is welded to the PCB 40, and the connecting portion 52 is used for electrical connection to an external device. Specifically, the number of conductive posts 50 is the same as the number of conductive elements 20 and snap-fit ​​elements 30. The connecting portion 52 of one conductive post 50 snaps into one snap-fit ​​element 30. Since one snap-fit ​​element 30 is disposed in the second mounting groove 22 of one conductive element 20, the connecting portion 52 of one conductive post 50 is electrically connected to one conductive element 20 and then electrically connected to an external device, such as a power supply or a motor, through the conductive element 20. When the covering portion 101 of the housing 10 is provided with a through hole 1011, the connecting portion 52 of one conductive post 50 passes through the through hole 1011 and is electrically connected to one conductive element 20. With the conductive post 50 installed, the PCB 40 is placed on the housing 10, and the conductive post 50 is snapped into the snap-fit ​​part 30, which enables a quick electrical connection between the conductive post 50 and the conductive part 20, which is convenient and fast.

[0049] In some embodiments, the number of conductive posts 50 is five, wherein the connecting portions 52 of two of the conductive posts 50 are used to electrically connect to the power source, specifically, through the snap-fit ​​member 30 and the conductive member 20; wherein the connecting portions 52 of the other three conductive posts 50 are used to electrically connect to the motor, specifically, through the snap-fit ​​member 30 and the conductive member 20.

[0050] It is worth noting that in some embodiments, the conductive post 50 is made of copper.

[0051] For the fastener 60 and control board 70 mentioned above, the fastener 60 can independently lock the PCB 40 to the support 80. In this case, the fastener 60 can be a screw, bolt, etc. Due to the setting of the fastener 60, it is not necessary to lock the conductive part 20 or the conductive post 50 to the heat sink, so there is no need to consider the insulation problem between the conductive post 50 and the heat sink.

[0052] It is worth noting that in some embodiments, the number of fasteners 60 is multiple.

[0053] Fastener 60 can also secure the control board 70, PCB 40, and support member 80. In some embodiments, fastener 60 includes a fastening part 61 and a support post 62. In this case, the fastening part 61 can be a screw, bolt, etc. The PCB 40 is stacked on the support member 80. One end of the support post 62 secures the PCB 40 and the support member 80, and the other end of the support post 62 supports the control board 70. The fastening part 61 secures the control board 70 to the other end of the support post 62. The function of PCB 40 is expanded by the addition of the control board 70.

[0054] The PCB40 and the support 80 are insulated from each other.

[0055] The support post 62 can be insulated. Alternatively, the support post 62 can be conductive to facilitate grounding.

[0056] In some implementations of this application, the controller 100 includes a housing 10, a plurality of conductive elements 20, and a PCB 40. The housing 10 covers and fixes the conductive elements 20, and the plurality of conductive elements 20 are insulated from each other through the housing 10. One end of each conductive element 20 is exposed outside the housing 10 for electrical connection with an external device, and the other end of each conductive element 20 is electrically connected to the PCB 40. Because the housing 10 covers and fixes the conductive elements 20, the risk of rotation of the conductive elements 20 due to locking torque is greatly reduced when the conductive elements 20 are locked with external devices (e.g., power supplies and motors). It eliminates the need to separately attach the conductive elements 20 to the housing or other auxiliary devices (e.g., heat sinks), making the process convenient and quick. Furthermore, because the housing 10 covers and fixes the conductive elements 20, there is no need for additional waterproofing between the housing 10 and the conductive elements 20, reducing manufacturing costs.

[0057] In some implementations of this application, the controller 100 includes a plurality of conductive posts 50 spaced apart, a PCB 40, fasteners 60, and a support member 80. Each conductive post 50 has a connecting welded portion 51 and a connecting portion 52. The welded portion 51 is welded to the PCB 40, and the connecting portion 52 is used for electrical connection to external devices. The PCB 40 is secured to the support member 80 by the fasteners 60. Because the welded portion 51 of the conductive post 50 is welded to the PCB 40, there is no need for the conductive post 50 to have a separate mounting portion for locking with the PCB 40. The conductive post 50 is smaller in size, and its layout on the PCB 40 is more flexible. Furthermore, because the conductive post 50 is welded to the PCB 40, and the PCB 40 is secured to the support member 80 by the fasteners 60, the risk of the conductive post 50 rotating due to torque during locking with external devices is significantly reduced. Additionally, due to the fasteners 60, it is not necessary to secure the conductive member 20 or the conductive post 50 to the heat sink, thus eliminating the need to consider the insulation between the conductive post 50 and the heat sink.

[0058] This application also provides an embodiment of an electric drive system, which includes the controller 100. The specific structure and function of the controller 100 can be found in the above embodiments, and will not be repeated here.

[0059] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A controller, characterized in that, include: Multiple conductive pillars, PCB, fasteners, and supports spaced apart; The conductive post has a welded part and a connecting part, the welded part is welded to the PCB, and the connecting part is used for electrical connection to external devices; The PCB is secured to the support member by the fasteners.

2. The controller according to claim 1, characterized in that, The controller also includes a control board, and the fasteners secure the control board, the PCB, and the support member.

3. The controller according to claim 2, characterized in that, The fastener includes a fastening component and a support column. The PCB is stacked on the support component. One end of the support column locks the PCB and the support component, and the other end of the support column supports the control board. The fastening component locks the control board to the other end of the support column.

4. The controller according to claim 1, characterized in that, The support component is a heat sink.

5. The controller according to claim 1, characterized in that, The controller further includes a housing, which has a receiving cavity and an opening communicating with the receiving cavity. The PCB is received in the receiving cavity, and the housing is disposed on the support member, which closes the opening.

6. The controller according to claim 5, characterized in that, The controller also includes a plurality of conductive components, which are covered and fixed by the housing, and the plurality of conductive components are insulated from each other by the housing. One end of the conductive element is exposed outside the housing for electrical connection with an external device, and the other end of the conductive element is electrically connected to the connecting portion of the conductive post.

7. The controller according to claim 6, characterized in that, One end of the conductive element is recessed to form a first mounting groove, which is used for electrical connection with an external device.

8. The controller according to claim 6, characterized in that, The controller further includes multiple snap-fit ​​components. The other end of the conductive component is recessed to form a second mounting groove. The number of snap-fit ​​components is the same as the number of conductive components. One snap-fit ​​component is disposed in the second mounting groove of one of the conductive components. The number of conductive posts is the same as the number of snap-fit ​​components. The connecting part of one of the conductive posts is snapped into one snap-fit ​​component.

9. The controller according to any one of claims 1-8, characterized in that, The number of conductive posts is five, of which the connecting parts of two conductive posts are used for electrical connection to a power source, and the connecting parts of the other three conductive posts are used for electrical connection to a motor.

10. An electric drive system, characterized in that, Includes the controller as described in any one of claims 1-9.

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