An integrated motor controller

Abstract

The utility model discloses an integrated motor controller, include: casing and set up on the casing apron, be provided with the motor accommodating cavity for installing motor and the controller accommodating cavity for installing motor drive circuit board in the casing, the side wall on motor accommodating cavity one side is equipped with the wire slot mouth that communicates with the controller accommodating cavity, be provided with motor drive circuit board in the controller accommodating cavity, and this motor drive circuit board includes: lower layer circuit board and the upper layer circuit board that sets up in the lower layer circuit board top, the side wall on controller accommodating cavity is equipped with the power outlet, the apron is equipped with the rotor via hole that corresponds with the rotor of motor on. Integrated motor controller with the motor of the utility model uses casing, and the structure is very compact, has greatly facilitated the installation, has saved the cost.

Description

Technical Field

[0001] This utility model relates to a controller, specifically a motor controller for controlling electric vehicles. Background Technology

[0002] Currently, the motor controller used in electric vehicles and the motor it controls are usually independent entities that need to be placed separately in different locations. This not only increases installation costs but also requires dedicated cables to connect the two, increasing manufacturing costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an integrated motor controller that can be directly combined with a single housing.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an integrated motor controller, comprising: a housing and a cover plate disposed on the housing; a motor drive circuit board disposed in the housing; a motor receiving cavity for mounting the motor and a controller receiving cavity for mounting the motor drive circuit board disposed in the housing; a wire passage slot communicating with the controller receiving cavity is formed on the side wall of the motor receiving cavity facing the controller receiving cavity; the motor drive circuit board comprises: a lower circuit board and an upper circuit board disposed above the lower circuit board; the upper circuit board comprises: an upper printed circuit board, and a plurality of capacitors and at least one inter-board connection nut disposed on the upper printed circuit board; the lower circuit board comprises: a lower printed circuit board, and a plurality of power devices disposed on the lower printed circuit board, and inter-board connection pins corresponding one-to-one with the inter-board connection nut; the specific configuration of the motor drive circuit board is described below. The method is as follows: the lower printed circuit board is provided with three motor terminals, at least two electrical connection pad holes, and electrical connection support columns corresponding to the annular pads of the electrical connection pad holes. The electrical connection support columns are hollow structures. The bottom surface of the controller housing cavity is provided with fixing and mounting holes corresponding to the electrical connection pad holes. The upper printed circuit board is provided with electrical connection pad holes corresponding to the corresponding electrical connection pad holes on the lower printed circuit board, and terminal through holes corresponding to the motor terminals. The motor terminals pass through the corresponding terminal through holes on the upper printed circuit board. Screws with insulating sleeves are selected, pass through the electrical connection pad holes on the upper printed circuit board, the corresponding electrical connection support columns, and the corresponding electrical connection pad holes on the lower printed circuit board, and are tightened into the fixing and mounting holes on the bottom surface of the controller housing cavity. The side wall of the controller housing cavity is provided with a power outlet, and the cover plate is provided with rotor through holes corresponding to the motor rotor.

[0005] As a preferred embodiment, in the aforementioned integrated motor controller, the specific configuration of the inter-board connection nut is as follows: the connection nut is located on the side of the upper printed circuit board facing away from the inter-board connection pins. Correspondingly, the upper printed circuit board has pin holes corresponding to the inter-board connection pins. After passing through the pin holes, the inter-board connection pins are inserted into the corresponding connection nut.

[0006] As a preferred embodiment, in the integrated motor controller, the lower printed circuit board is provided with three inter-board connection headers, and correspondingly, the upper printed circuit board is provided with three inter-board connection headers.

[0007] As a preferred embodiment, in the integrated motor controller, the upper printed circuit board has current transformers respectively provided above at least two terminal vias, and the motor terminals are inserted into the corresponding current transformers.

[0008] As a preferred embodiment, in the integrated motor controller, the lower printed circuit board is provided with four electrical connection pad holes and electrical connection support posts that are correspondingly arranged on the annular pads of the electrical connection pad holes.

[0009] As a preferred embodiment, in the integrated motor controller, the power outlet is upward-opening and a wire-passing seal is installed therein.

[0010] As a preferred embodiment, in the integrated motor controller, the housing has a sealing groove circumferentially formed on the power outlet, and the corresponding side of the wire-passing seal has two parallel grooves, thereby forming a protrusion between the two grooves that matches the sealing groove on the power outlet, and the protrusion is engaged in the sealing groove on the power outlet.

[0011] As a preferred embodiment, in the integrated motor controller, the housing has a plurality of circumferentially arranged heat dissipation fins on the outer surface of its sidewall.

[0012] As a preferred embodiment, in the integrated motor controller, the cover plate has a plurality of heat dissipation fins on its outer surface.

[0013] The beneficial effects of this utility model are:

[0014] 1. The motor controller and motor of this utility model share a single housing, with the motor drive circuit board placed in the controller housing cavity to form an integrated intelligent motor. This allows for installation of only the intelligent motor, reducing space requirements and simplifying installation. Furthermore, this utility model uses electrical connection support columns to support the two independent circuit boards into a three-dimensional structure. These support columns not only provide support but also serve as electrical connections, achieving two goals at once. This results in a very compact structure for the motor drive circuit board, making installation convenient and cost-effective.

[0015] 2. This utility model sets the inter-board connection pin on the side of the upper printed circuit board away from the inter-board connection pin, so that the distance between the upper and lower printed circuit boards is only related to the inter-board connection pin, thereby compressing the height of the entire motor drive circuit board and thus reducing the size of the motor controller.

[0016] 3. This utility model realizes the intelligence of the motor controller by setting current transformers above at least two terminal vias on the upper printed circuit board.

[0017] 4. This utility model provides a power outlet on the side wall of the controller housing cavity of the housing, and a wire-passing seal is installed in the power outlet so that the power cable passes through the wire-passing seal, thereby forming a sealed cavity in the controller housing cavity.

[0018] 5. This utility model improves the heat dissipation effect of the entire controller housing cavity by setting heat dissipation fins on the outer surface of the housing side wall and the outer surface of the cover plate respectively. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the motor controller described in this utility model.

[0020] Figure 2 This is a schematic diagram of the lower-level circuit board in the motor drive circuit board.

[0021] Figure 3 This is a schematic diagram of the upper circuit board in the motor drive circuit board.

[0022] Figure 4 This is a schematic diagram of the internal structure of the motor controller mounting the lower circuit board of the present invention.

[0023] Figure 5 This is a schematic diagram of the internal structure of the upper and lower circuit boards of the motor controller described in this utility model.

[0024] Figure 6 yes Figure 4 A magnified structural diagram of part A in the middle.

[0025] Figure 7 This is a schematic diagram of a wire-passing seal through which a power cord passes.

[0026] Figures 1 to 7 The reference numerals in the attached drawings are as follows: 1. Housing; 10. Heat dissipation fins; 11. Motor housing cavity; 12. Wiring slot; 13. Controller housing cavity; 131. Power cable outlet; 1311. Sealing groove; 2. Cover plate; 20. Heat dissipation fins; 4. Wiring seal; 41. Groove; 42. Protrusion; 3. Upper circuit board; 30. Upper printed circuit board; 31. First board connection nut; 32. Second board connection nut; 3 3. Third board connection header, 35. Electrolytic capacitor, 37. Terminal via, 38. Current transformer, 5. Lower circuit board, 50. Lower printed circuit board, 51. First board connection header, 52. Second board connection header, 53. Third board connection header, 55. Electrical connection support post, 57. Motor terminal, 58. Power device, 7. Power cord, 8. Screw, 81. Insulating sleeve, 9. Motor, 99. Rotor. Detailed Implementation

[0027] The specific implementation scheme of the integrated motor controller of this utility model is described in detail below with reference to the accompanying drawings.

[0028] For example Figure 1 , Figure 4 and Figure 5 As shown, the integrated motor controller of this utility model includes: a motor drive circuit board, a housing 1, and a cover plate 2 disposed on the housing 1. The housing 1 has a motor housing cavity 11 for mounting a motor 9 and a controller housing cavity 13 for mounting the motor drive circuit board. The motor housing cavity 11 has a wire passage slot 12 communicating with the controller housing cavity 13 on its side wall facing the controller housing cavity 13. The motor drive circuit board includes: a lower circuit board 5 and an upper circuit board 3 disposed above the lower circuit board 5, such as... Figure 3As shown, the upper circuit board 3 includes: an upper printed circuit board 30, on which ten electrolytic capacitors 35, a first inter-board connection busbar 31, a second inter-board connection busbar 32, and a third inter-board connection busbar 33 are disposed on the same side; the lower circuit board 5 includes: a lower printed circuit board 50, and a plurality of power devices 58 disposed on the lower printed circuit board 50, and a first inter-board connection busbar corresponding one-to-one with the first inter-board connection busbar 31, the second inter-board connection busbar 32, and the third inter-board connection busbar 33. Pin 51, second inter-board connecting pin 52, and third inter-board connecting pin 53; the upper printed circuit board 30 is also provided with pin header vias corresponding to the first inter-board connecting pin 51, second inter-board connecting pin 52, and third inter-board connecting pin 53. After passing through the pin header vias, the first inter-board connecting pin 51, second inter-board connecting pin 52, and third inter-board connecting pin 53 are inserted one-to-one into the first inter-board connecting nut 31, second inter-board connecting nut 32, and third inter-board connecting nut 33; the lower printed circuit board 50 is... It also includes three motor terminals 57, four electrical connection pads, and electrical connection support columns 55 corresponding to the annular pads of the electrical connection pads. The electrical connection support columns 55 are hollow. The bottom surface of the controller housing 13 has mounting holes corresponding to the electrical connection pads (this is common technology in the field and will not be described further here). The upper printed circuit board 30 has electrical connection pads corresponding to the corresponding electrical connection pads on the lower printed circuit board 50, and terminals corresponding to the motor terminals 57. Hole 37, on the upper printed circuit board 30, current transformers 38 are respectively provided above two of the terminal through holes 37. The motor terminals 57 are sequentially passed through the corresponding terminal through holes 37 and the corresponding current transformers 38 on the upper printed circuit board 30; then, after selecting screws 8 and fitting insulating sleeves 81, they are passed through the electrical connection pad holes of the upper printed circuit board 30, the corresponding electrical connection support posts 55, and the corresponding electrical connection pad holes on the lower printed circuit board 50, and tightened into the fixing mounting holes on the bottom surface of the controller receiving cavity 13; as Figure 6 As shown, the controller housing cavity 13 has an upward-opening power outlet 131 on its side wall, and the power outlet 131 is fitted with a wire-passing seal 4, such as... Figures 5 to 7As shown, the housing 1 has a circumferentially circumferentially formed sealing groove 1311 on the power outlet 131. The wire-passing seal 4 has two parallel grooves 41 on three sides of the corresponding side, thus forming a protrusion 42 between the two grooves 41 that mates with the sealing groove 1311 on the power outlet 131. The protrusion 42 is engaged in the sealing groove 1311 on the power outlet 131. The cover plate 2 has a rotor through hole corresponding to the rotor 99 of the motor 9. In this embodiment, the housing 1 has a plurality of circumferentially arranged heat dissipation fins 10 on the outer surface of its sidewall, and the cover plate 2 has a plurality of cover plate heat dissipation fins 20 on its outer surface.

[0029] During actual installation, the three-phase wires of motor 9 enter the controller housing 13 from motor housing 11 through wire slot 12 and are connected one-to-one with motor terminals 57. Power line 7 is run through wire seal 4.

[0030] In summary, the above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent variations and modifications made to the shape, structure, features and spirit described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. An integrated motor controller, comprising: The system comprises a housing and a cover plate disposed on the housing, wherein a motor drive circuit board is disposed within the housing. The housing is characterized by having a motor housing cavity for mounting a motor and a controller housing cavity for mounting the motor drive circuit board. The motor housing cavity has a wire-passing slot communicating with the controller housing cavity on its sidewall facing the controller housing cavity. The motor drive circuit board includes a lower circuit board and an upper circuit board disposed above the lower circuit board. The upper circuit board includes an upper printed circuit board and several capacitors and at least one inter-board connection header on the upper printed circuit board. The lower circuit board includes a lower printed circuit board and several power devices disposed on the lower printed circuit board, and inter-board connection pins corresponding one-to-one with the inter-board connection header. The specific arrangement of the motor drive circuit board is as follows: the lower printed circuit board is provided with… The controller housing has three motor terminals, at least two electrical connection pad holes, and electrical connection support columns corresponding to the annular pads on the electrical connection pad holes. The electrical connection support columns are hollow. The bottom surface of the controller housing has mounting holes corresponding to the electrical connection pad holes. The upper printed circuit board has electrical connection pad holes corresponding to the corresponding electrical connection pad holes on the lower printed circuit board, and terminal through holes corresponding to the motor terminals. The motor terminals pass through the corresponding terminal through holes on the upper printed circuit board. Screws with insulating sleeves are selected, pass through the electrical connection pad holes on the upper printed circuit board, the corresponding electrical connection support columns, and the corresponding electrical connection pad holes on the lower printed circuit board, and are tightened into the mounting holes on the bottom surface of the controller housing. The side wall of the controller housing has a power outlet, and the cover plate has rotor through holes corresponding to the motor rotor.

2. The integrated motor controller according to claim 1, characterized in that, The specific configuration of the inter-board connection header is as follows: the connection header is located on the side of the upper printed circuit board facing away from the inter-board connection header. Correspondingly, the upper printed circuit board has a header via corresponding to the inter-board connection header. After the inter-board connection header passes through the header via, it is inserted into the corresponding connection header.

3. The integrated motor controller according to claim 1, characterized in that, The lower printed circuit board is provided with three inter-board connection headers, and correspondingly, the upper printed circuit board is provided with three inter-board connection headers.

4. The integrated motor controller according to claim 1, characterized in that, The upper printed circuit board has current transformers installed above at least two terminal vias, and the motor terminals are inserted into the corresponding current transformers.

5. The integrated motor controller according to claim 1, characterized in that, The lower printed circuit board is provided with four electrical connection pad holes and electrical connection support posts that are respectively set on the annular pads of the electrical connection pad holes.

6. The integrated motor controller according to claim 1, characterized in that, The power outlet is upward-opening and has a wire-passing seal.

7. The integrated motor controller according to claim 6, characterized in that, The housing has a sealing groove circumferentially formed on the power outlet. The corresponding side of the wire sealing member has two parallel grooves, thereby forming a protrusion between the two grooves that matches the sealing groove on the power outlet. The protrusion is engaged in the sealing groove on the power outlet.

8. An integrated motor controller according to any one of claims 1 to 7, characterized in that, The shell has several circumferentially arranged heat dissipation fins on the outer surface of its sidewall.

9. An integrated motor controller according to any one of claims 1 to 7, characterized in that, The cover plate has several heat dissipation fins on its outer surface.

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