High-voltage controller and motor

Abstract

The utility model relates to a high-voltage controller and a motor, belongs to the technical field of controller equipment, and solves the problems that in the prior art, a high-voltage controller is not compact enough in layout and large in size, and internal devices are poor in insulativity. The power amplifier comprises a shell, a power amplifier board, a connecting bolt and an insulating part, the shell comprises a bottom plate; the power board is attached to the bottom board, and the power board comprises a UVW phase; the connecting bolt is arranged in the middle of the UVW phase and can extend into the bottom plate; the connecting bolt is used for crimping the power plate and the bottom plate; the insulating part is arranged outside the connecting bolt in a sleeving mode and wraps the connecting bolt. According to the utility model, the internal structure of the controller can be compact, and the insulating property of the high-voltage controller can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of controller products, in particular to a high-voltage controller and a motor. Background Art

[0002] High-voltage and high-power controllers above 96V have high voltage and high power, and have high requirements for heat dissipation, volume and weight, electrical safety, and reliability. Therefore, existing high-voltage controllers have complex structural designs, large volumes, incompact layouts, and complex assembly, resulting in poor product reliability and poor insulation of internal components, which do not meet safety regulations. Utility Model Content

[0003] In view of the above analysis, the embodiments of the present invention aim to provide a high-voltage controller and a motor to solve the problems in the prior art of the high-voltage controller having an insufficiently compact layout, a bulky volume, and poor insulation of internal components.

[0004] On the one hand, the utility model provides a high-voltage controller, including a housing, a power board, an insulating component and a copper busbar;

[0005] The housing includes a bottom plate; the power board includes a copper substrate and a UVW phase, the copper substrate is attached to the bottom plate; the UVW phase includes a copper clad area arranged in the middle of the copper substrate;

[0006] The insulating component includes a first step surface and a second step surface, the first step surface is pressed against the copper substrate and the housing; the second step surface is pressed against the copper busbar.

[0007] Furthermore, the copper substrate has a first hole; the copper clad area has a second hole; and the insulating component can be inserted into the first hole.

[0008] Furthermore, the first hole and the second hole are coaxially arranged; the diameter of the second hole is larger than the diameter of the first hole, and an insulating area is arranged between the first hole and the second hole;

[0009] The first step surface of the insulating component is pressed against the insulating region.

[0010] Furthermore, the copper busbar includes a first conductive area and a second conductive area; the second conductive area is connected to the terminal.

[0011] Furthermore, the lower surface of the first conductive area is attached to the copper-clad area, and the second step surface of the insulating component is pressed against the first conductive area.

[0012] Furthermore, the copper busbar further includes a connecting section; one end of the connecting section is connected to the first conductive area, and the other end of the connecting section is connected to the second conductive area; and the exterior of the connecting section is coated with an insulating material.

[0013] Furthermore, it also includes bolts; the bolts are used to fix the insulating component; the bolts are arranged inside the insulating component; the insulating component and the bolts can extend into the lower part of the base plate.

[0014] Furthermore, the top of the insulating component has a groove, the groove is used to accommodate the bolt head, and the depth of the groove is greater than the height of the bolt head.

[0015] Furthermore, thermal conductive silicone grease is provided on the bottom surface of the copper substrate.

[0016] Furthermore, the housing further includes a side wall, and a plurality of heat sinks are provided on the side wall at positions corresponding to the power board.

[0017] Another aspect of the present invention provides a motor including the high-voltage controller.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] (1) Compared with the prior art, the insulating component in the present invention is configured as a structure with multiple step surfaces, which sequentially crimp the copper busbar, copper base plate and bottom plate, thereby forming a vertical installation space for multiple components such as the copper busbar, power board and bottom plate in the controller, so that the components in the controller are reliably fixed, the structure is compact, and the space occupied is reduced.

[0020] (2) The first step surface of the insulating component in the present invention is in contact with the insulating area. The insulating area is arranged on the annular area formed by the copper substrate and the copper-clad area. The insulating area and the insulating component form an insulating channel to isolate the electrical transmission path.

[0021] (3) The first step surface of the insulating component is in contact with the insulating area, that is, the first step surface of the insulating component is pressed against the copper substrate. The first conductive area of ​​the copper busbar is set on the upper part of the copper clad area, the second step surface of the insulating component is pressed against the first conductive area, and the copper busbar is pressed against the copper clad area. Therefore, the second step surface of the insulating component is pressed against the first conductive area and the copper clad area of ​​the copper busbar, so that the first conductive area and the copper clad area are reliably fixed.

[0022] (4) The connecting section of the copper busbar in the present invention is coated with insulating material to insulate the surface of the connecting section, thereby preventing people from getting electric shock and improving the safety of the copper busbar.

[0023] (5) The present invention provides an insulating component on the outside of the bolts connecting multiple components, surrounding the conductive metal bolts inside, isolating and enclosing the bolts. This blocks the electrical transmission path through the bolts, preventing electricity from being transmitted to the bottom of the housing, and enhancing the electrical insulation of the housing. In the present invention, the head of the bolt is disposed in a groove at the top of the insulating component. The depth of the groove is greater than the height of the bolt head, and the sidewalls of the groove form an isolation wall, providing secondary insulation for the bolts.

[0024] (6) The copper substrate of the present invention is bonded to the base plate to facilitate heat transfer from the power board to the base plate and dissipation to the outside of the controller housing. In order to further increase heat conduction between the copper substrate and the base plate, the bottom surface of the copper substrate is coated with thermal grease to facilitate heat dissipation. Since the power board will dissipate a large amount of heat during operation, a plurality of heat sinks are provided on the side wall of the controller housing corresponding to the position of the power board to dissipate heat from the power board and ensure normal operation of the power board.

[0025] (7) Compared with the prior art, the present invention utilizes the stepped surface of the insulating component to crimp and install multiple components, making the internal structure of the controller compact while also taking into account insulation and safety, and providing insulation protection for easily conductive bolts. The present invention arranges the insulating component in the middle of the UVW phase region where the electric field is dense, effectively isolating the electric field in the UVW phase region and improving the insulation effect.

[0026] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages will become apparent from the description or be understood through practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the contents particularly pointed out in the description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. Throughout the accompanying drawings, the same reference symbols denote the same components.

[0028] Figure 1 is a structural diagram of a high-voltage controller according to a specific embodiment;

[0029] Figure 2 is a schematic cross-sectional view of the structure of a high-voltage controller according to a specific embodiment;

[0030] Figure 3 For a specific embodiment Figure 2 An enlarged schematic diagram of the connection between the middle insulation component, connecting bolts, base plate and power board;

[0031] Figure 4 is a schematic top view of a housing of a specific embodiment;

[0032] Figure 5 It is a left side schematic diagram of a housing of a specific embodiment;

[0033] Figure 6 is a structural diagram of a power board according to a specific embodiment;

[0034] Figure 7 is a schematic structural diagram of an insulating component according to a specific embodiment;

[0035] Figure 8 Schematic diagram of the structure of the copper busbar in a specific embodiment.

[0036] Reference numerals:

[0037] 1-shell; 101-base plate; 1011-protrusion; 1012-first groove; 102-side wall; 1021-heat sink; 2-power board; 201-copper base plate; 2011-first hole; 2012-insulating area; 202-UVW phase; 2021-copper clad area; 20211-second hole; 2022-silicon carbide component; 3-insulating component; 301-first part; 302-second part; 303-third part; 3031-top groove; 304-third hole; 4-copper busbar; 401-first conductive area; 4011-fourth hole; 402-second conductive area; 403-connecting section; 5-bolt; 6-capacitor; 7-insulating adapter plate. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0039] The utility model provides a high-voltage controller, such as Figure 1-Figure 3 As shown, it includes a housing 1, a power board 2, an insulating component 3 and a copper busbar 4.

[0040] like Figure 4 and Figure 5 As shown, the housing 1 is in the shape of a rectangular parallelepiped and is used to accommodate components such as a power board 2, an insulating component 3, and a copper busbar 4. The housing 1 includes a bottom plate 101 and side walls 102.

[0041] A protrusion 1011 is provided in the center of the base plate 101. The upper surface of the protrusion 1011 is used to fit the power board 2. A plurality of first grooves 1012 are provided within the protrusion 1011. The first grooves 1012 are stepped grooves, including a large-diameter groove and a small-diameter groove. The large-diameter groove is used to install the insulating component 3; the small-diameter groove is internally threaded for installing the bolts 5.

[0042] An insulating adapter plate 7 with a plurality of connection terminals is provided on one side of the bottom plate 101 , and a capacitor 6 is provided on the other side for stabilizing the voltage.

[0043] Since the power board 2 emits a large amount of heat during operation, a plurality of heat sinks 1021 are provided on the side wall 102 of the controller housing 1 at positions corresponding to the power board 2 for dissipating heat from the power board 2 to ensure normal operation of the power board 2 .

[0044] like Figure 6 As shown, the power board 2 includes a copper base plate 201 for easy thermal conductivity and a UVW layer 202. The bottom surface of the copper base plate 201 is aligned with the top surface of the protrusion 1011 of the housing 1. When installing the power board 2, press it firmly against the top surface of the protrusion 1011 to facilitate heat transfer from the power board 2 to the base plate 101 and dissipation outside the controller housing 1. To further enhance heat conduction between the copper base plate 201 and the base plate 101, the bottom surface of the copper base plate 201 is coated with thermal grease to facilitate heat dissipation.

[0045] Multiple groups of first holes 2011 are arranged in parallel along the length of the central portion of the copper substrate 201. These first holes 2011 are through-holes. The positions of the first holes 2011 correspond to the first grooves 1012. The diameter of the first holes 2011 is the same as the inner diameter of the large diameter portion of the first groove 1012, and are used to fit the first portion 301 of the insulating component 3.

[0046] The UVW phase 202 includes a copper clad area 2021 in the middle of the copper substrate 201 and silicon carbide components 2022 symmetrically distributed on both sides of the copper clad area 2021. There are multiple copper clad areas 2021 arranged in parallel along the length direction of the copper substrate 201.

[0047] The copper-clad area 2021 is provided with a second hole 20211 coaxial with the first hole 2011. The diameter of the second hole 20211 is larger than that of the first hole 2011, forming an annular region between the second hole 20211 and the first hole 2011. The annular region is coated with an insulating material, forming the insulating region 2012. The insulating region 2012 is bonded to the bottom surface of the second portion 302 of the insulating component 3, forming an insulating channel. The insulating channel isolates the electrical transmission path.

[0048] like Figure 7 As shown, the insulating component 3 is a stepped structure with a hollow interior, and is sleeved on the outside of the bolt 5 to provide insulation protection for the bolt 5.

[0049] The insulating component 3 has a plurality of stepped surfaces. In this embodiment, the insulating component 3 is configured to have a first portion, a second portion, and a third portion according to the distribution of components in the controller.

[0050] The first part is arranged at the bottom of the insulating component 3 and is a two-sleeve structure.

[0051] The second portion 302 is a circular boss structure, positioned above the first portion 301. The outer diameter of the second portion 302 is larger than that of the first portion 301, and the connection between the second portion 302 and the first portion 301 forms a stepped structure. The bottom of the second portion 302 forms a first stepped surface. When the insulating component 3 is installed, the first stepped surface aligns with the insulating region 2012.

[0052] The third portion 303 is a rectangular parallelepiped structure and is disposed on the upper portion of the second portion 302. The third portion 303 and the second portion 302 form a step structure, and the bottom surface of the third portion 303 is a second step surface.

[0053] The top of the third portion 303 is open, and a top groove 3031 is provided at the opening. Top groove 3031 is a rectangular groove, and a third hole 304 is longitudinally provided at the bottom. The third hole 304 is a through hole that extends to the bottom of the sleeve structure of the first portion 301. Third hole 304 is used to accommodate bolt 5.

[0054] When installing the insulating component 3 , the first portion 301 passes through the first hole 2011 of the copper substrate 201 and extends into the large diameter portion of the first groove 1012 of the controller housing 1 until the first step surface contacts the insulating area 2012 of the copper substrate 201 .

[0055] Bolt 5 is inserted vertically downward from top groove 3031 into third hole 304. The head of bolt 5 is secured to the bottom of top groove 3031 via a washer, and the bottom of bolt 5 is screwed into the small-diameter groove of first groove 1012. Insulation component 3 encases and protects the upper portion of bolt 5, preventing electrical conduction through bolt 5 to housing 1 and enhancing insulation.

[0056] Compared to the prior art, this embodiment places an insulating component 3 over the bolt 5, enclosing the conductive metal bolt 5 within. This isolates and covers the bolt 5, thus isolating the electrical transmission path through the bolt 5 and enhancing electrical insulation. This embodiment places the insulating component 3 in the middle of the UVW phase 202 region, where the electric field is dense. This effectively isolates the electric field in the UVW phase 202 region, improving insulation and reducing the probability of electric shock accidents.

[0057] Furthermore, the depth of the top groove 3031 is set to be greater than the height of the head of the bolt 5 , and the side wall 102 of the top groove 3031 forms a partition wall, thereby providing secondary insulation for the head of the bolt 5 .

[0058] The controller further includes a copper bus 4, which is used to output the current of the UVW phase 202. One end of the copper bus 4 is connected to the UVW phase 202, and the other end is connected to the wiring terminal.

[0059] like Figure 8As shown, the copper busbar 4 includes a first conductive region 401 and a second conductive region 402 disposed at either end, along with a connecting section 403 in the middle. The first conductive region 401 is rectangular, its shape identical to the second stepped surface of the insulating component 3. The first conductive region 401 has a fourth hole 4011, the diameter of which is identical to the outer diameter of the second portion 302 of the insulating component 3. During installation, the first conductive region 401 of the copper busbar 4 is sleeved over the second portion 302 of the insulating component 3, positioned below the second stepped surface. The upper surface of the first conductive region 401 abuts the first stepped surface, while the lower surface abuts the copper-clad region 2021.

[0060] The second conductive region 402 is connected to the connection terminal.

[0061] Furthermore, the middle connecting section 403 of the copper busbar 4 is coated with insulating paint to improve the safety of the copper busbar 4 .

[0062] The installation steps of this embodiment are as follows:

[0063] Install the power board 2: First, align the first hole 2011 of the copper substrate 201 coated with conductive silicone grease on the bottom surface of the power board 2 with the first groove 1012 coaxially, and fit it on the upper surface of the boss of the base plate 101; the copper-clad area 2021 has a second hole 20211, and the second hole 20211 and the first hole 2011 are an annular insulating area 2012; paste the silicon carbide components 2022 symmetrically distributed on both sides of the copper-clad area 2021.

[0064] Install the copper busbar 4: The first conductive area 401 of the copper busbar 4 is arranged outside the annular insulating area 2012 of the copper clad area 2021; the second conductive area 402 is connected to the connection terminal.

[0065] Install the insulating component 3 : Insert the first portion 301 of the insulating component 3 into the first groove 1012 of the bottom plate 101 . At this time, the first step surface is in contact with the insulating area 2012 , and the second step surface is in contact with the upper surface of the copper busbar 4 .

[0066] Install the bolt 5: Insert the bolt 5 into the third hole 304 longitudinally arranged in the insulating component 3 and screw it into the small-diameter groove in the first groove 1012 so that the insulating component 3 presses the copper bus 4, the copper substrate 201, the copper-clad area 2021 and the bottom plate 101.

[0067] Install capacitor 6 and other components.

[0068] Compared with the prior art, the insulating component 3 in the present invention is configured to have a structure with multiple step surfaces, which sequentially crimp the copper busbar 4, the copper base plate 201 and the bottom plate 101. Due to the adaptive structure of the insulating component 3, a vertical installation space for multiple components such as the copper busbar 4, the power board 2 and the bottom plate 101 is formed in the controller, making the controller structure compact and reducing space occupancy.

[0069] An embodiment of the present invention further provides a motor, comprising the high-voltage controller in the above embodiment.

[0070] Compared with the prior art, the advantages of the motor in the embodiment of the present invention are the same as those of the above-mentioned high-voltage controller, which will not be repeated here.

[0071] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A high voltage controller, characterized in that: It comprises a housing (1), a power board (2), an insulating component (3) and a copper busbar (4); The housing (1) includes a bottom plate (101); the power board (2) includes a copper substrate (201) and a UVW phase (202); the copper substrate (201) is attached to the bottom plate (101); the UVW phase (202) includes a copper-clad area (2021) arranged in the middle of the copper substrate (201); The insulating component (3) comprises a first step surface and a second step surface, the first step surface being press-connected to the copper substrate (201) and the bottom plate (101); and the second step surface being press-connected to the copper busbar (4).

2. The high voltage controller according to claim 1, characterized in that: The copper substrate (201) has a first hole (2011); the copper-clad area (2021) has a second hole (20211); and the insulating component (3) can be inserted into the first hole (2011).

3. The high voltage controller according to claim 2, characterized in that: The first hole (2011) and the second hole (20211) are coaxially arranged; the diameter of the second hole (20211) is larger than the diameter of the first hole (2011); an insulating area (2012) is arranged between the first hole (2011) and the second hole (20211); and the first step surface of the insulating component (3) is crimped to the insulating area (2012).

4. The high voltage controller according to claim 1, characterized in that: The copper busbar (4) comprises a first conductive area (401) and a second conductive area (402); The first conductive area (401) is attached to the copper-clad area (2021); the second step surface of the insulating component (3) is pressed against the first conductive area (401); The second conductive area (402) is connected to the connection terminal.

5. The high voltage controller according to claim 4, characterized in that: The copper busbar (4) further comprises a connecting section (403); one end of the connecting section (403) is connected to the first conductive area (401), and the other end of the connecting section (403) is connected to the second conductive area (402); the exterior of the connecting section (403) is coated with insulating material.

6. The high voltage controller according to claim 1, characterized in that: It also includes a bolt (5); the bolt (5) is arranged inside the insulating component (3); the insulating component (3) and the bolt (5) can extend into the lower part of the bottom plate (101).

7. The high voltage controller according to claim 6, characterized in that: The top of the insulating component (3) is provided with a groove, the groove being used to accommodate the head of the bolt (5), and the depth of the groove being greater than the height of the head of the bolt (5).

8. The high voltage controller according to claim 1, characterized in that: The bottom surface of the copper substrate (201) is provided with thermal conductive silicone grease.

9. The high voltage controller according to claim 1, characterized in that: The housing (1) further comprises a side wall (102), and a plurality of heat sinks (1021) are provided on the side wall (102) at positions corresponding to the power board (2).

10. A motor, characterized in that: Including the high-voltage controller described in any one of claims 1-9.

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