Circuit board assembly of compact brushless motor

Abstract

The utility model discloses a circuit board assembly of a compact brushless motor, and relates to the technical field of circuit boards, the circuit board assembly comprises a plate, the outer side of the plate is provided with a plurality of gaps, the inner side of each gap is fixedly connected with a fixing block, the outer side of each fixing block is fixedly connected with a first gasket, the inner side of each gap is provided with a protection assembly, and the protection assembly is provided with a second gasket. The protection assembly is movably connected with the fixing block, the bottom end of the plate is fixedly connected with a plurality of heat conduction pieces, and the heat conduction pieces are distributed in a circular array mode. According to the protective device, the protective assembly is arranged, the first gasket has certain elasticity and is used for absorbing vibration borne by a plate and improving the stability of the plate, and the second gasket located on the top of the first connecting plate is used for supporting the top end of the plate and reducing damage of external impact to surface elements of the plate; and a moving space can be provided for the guide rod, so that a certain protection interval is constructed for the top of the plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board, specifically a compact brushless motor's circuit board subassembly. BACKGROUND

[0002] Compact brushless motor has been widely used in many fields due to its compact structure, high efficiency and fast response speed. These motors usually contain a circuit board assembly, which is responsible for controlling the operation of the motor, monitoring its status, and ensuring the performance optimization of the motor under various working conditions. The design of the circuit board assembly is crucial to the overall performance and reliability of the motor.

[0003] However, traditional designs often result in insufficient connection between the circuit board and the motor housing. The vibration of the motor is continuously transmitted to the circuit board, causing the gap between the circuit board and the installation position to gradually increase, affecting the stability of the circuit board installation. Moreover, as the temperature of the motor increases, a large amount of heat will accumulate on the circuit board, which will not be discharged in time, easily causing damage to the circuit board. Therefore, a compact brushless motor circuit board assembly is needed to improve the existing deficiencies. SUMMARY

[0004] The utility model aims at providing a compact brushless motor circuit board assembly to solve the above technical problems.

[0005] Therefore, the utility model provides a compact brushless motor circuit board assembly, which comprises a board piece, a plurality of notches are formed on the outer side of the board piece, a fixing block is fixedly connected to the inner side of each notch, a gasket one is fixedly connected to the outer side of the fixing block, a protection assembly is arranged on the inner side of each notch, and the protection assembly is movably connected with the fixing block, a plurality of heat conduction pieces are fixedly connected to the bottom end of the board piece, and the heat conduction pieces are arranged in a circular array.

[0006] The cross-sectional area of the heat conduction piece gradually increases from the inside to the outside along the radial direction of the board piece, and the heat conduction piece is arranged in a staggered manner with the notch.

[0007] The protection assembly comprises a connecting plate one, a connecting plate two, a guide cylinder and a guide rod, the guide cylinder and the guide rod are symmetrically arranged, the top end of the guide rod is fixedly connected to the bottom end of the connecting plate one, the bottom end of the guide rod is movably connected to the inner side of the guide cylinder, and the bottom end of the guide cylinder is fixedly connected to the top end of the connecting plate two.

[0008] The protection assembly further comprises an adjusting rod, the adjusting rod is located on the opposite side of the guide cylinder, the adjusting rod penetrates through the connecting plate two, and the adjusting rod is rotatably connected with the connecting plate two.

[0009] The guiding cylinder penetrates the fixed block, and the guiding cylinder is movably connected with the fixed block, a thread is formed on the outer side of the adjusting rod, and the top end of the adjusting rod is threadedly connected with the bottom end of the fixed block.

[0010] The inside of the guiding cylinder is fixedly connected with a reset spring, and the free end of the reset spring is fixedly connected with the end of the guiding rod.

[0011] The top end of the first connecting plate and the bottom end of the second connecting plate are fixedly connected with a group of symmetrical limiting columns, the top end of the first connecting plate and the bottom end of the second connecting plate are provided with gaskets two, a group of symmetrical limiting holes are formed in the gaskets two, and the limiting columns are matched with the limiting holes respectively.

[0012] The depth of the limiting hole is greater than the height of the limiting column.

[0013] The heat conduction piece comprises a connecting portion, a supporting portion and a heat conduction portion, the supporting portion and the heat conduction portion are symmetrically arranged, the supporting portion is fixedly connected to the two sides of the connecting portion respectively, and the heat conduction portion is fixedly connected to the bottom end of the supporting portion.

[0014] The surface of the connecting portion is fixedly connected with the bottom of the plate piece, and the connecting portion is a fan shape.

[0015] Beneficial effects:

[0016] Compared with the prior art, the circuit board assembly of the compact brushless motor has the following beneficial effects:

[0017] First, the protective assembly is provided, the gasket one has elasticity, is used for absorbing the vibration of the plate piece, improves the stability of the plate piece, the gasket two located at the top of the first connecting plate is used for supporting the top end of the plate piece, reduces the damage of external impact to the surface element of the plate piece, the reset spring can provide a moving space for the guiding rod, thereby forming a certain protection interval for the top of the plate piece.

[0018] Second, the heat conduction piece is provided, the connecting portion is connected between the plate piece and the bottom, is helpful to transfer the heat on the plate piece to the connecting portion, and then to the heat conduction portion through the supporting portion, and then radiated from the heat conduction portion, and the heat conduction piece is a hollow structure, is helpful to the heat dissipation in the gap of the heat conduction piece, the supporting portion and the heat conduction portion are made of a material with elasticity, when the plate piece is axially pressed, the pressure is transmitted to the heat conduction piece, so that the supporting portion is deformed by being opened to both sides, thereby providing a certain moving space for the heat conduction piece, and when the supporting portion restores the shape, the heat conduction piece is reset, and at the same time, cooperates with the gasket two to improve the stability of the plate piece. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments description. Obviously, the drawings described in the following embodiments are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0020] Figure 1 It is a three-dimensional structure schematic view of the present application;

[0021] Figure 2 It is another perspective structure schematic view of the present application;

[0022] Figure 3 It is an explosion structure schematic view of the protective assembly of the present application;

[0023] Figure 4 It is another perspective structure schematic view of the present application Figure 2 Another perspective structure schematic view;

[0024] Figure 5 It is a heat conduction piece structure schematic view of the present application.

[0025] In the figure: 1, plate; 2, notch; 3, fixed block; 4, gasket one; 5, protective assembly; 501, connecting plate one; 502, connecting plate two; 503, guide cylinder; 504, guide rod; 505, adjusting rod; 6, heat conduction piece; 601, connecting part; 602, support part; 603, heat conduction part; 7, reset spring; 8, limiting column; 9, gasket two; 10, limiting hole. Specific implementation

[0026] The technical solutions of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative effort are within the protection scope of the present application.

[0027] The present application will be described in combination with the drawings and specific embodiments:

[0028] As Figures 1-5As shown in the drawings, a kind of circuit board assembly of compact brushless motor, including board piece 1, the outer side of board piece 1 is equipped with several notches 2, the inner side of notch 2 is fixedly connected with fixed block 3, the outer side of fixed block 3 is fixedly connected with gasket one 4, the outer side of gasket one 4 is structured with several friction strips, for improving the connection tightness of gasket one 4 with the inner side of motor shell, reduce the rotation of board piece 1 whole, and gasket one 4 has certain elasticity, for absorbing vibration suffered by board piece 1, improve the stability of board piece 1, the inner side of notch 2 is provided with protection assembly 5, and protection assembly 5 is movably connected with fixed block 3, the bottom of board piece 1 is fixedly connected with several heat conduction pieces 6, and heat conduction piece 6 is circular array distribution, the cross-sectional area of heat conduction piece 6 gradually increases from inside to outside along the radial direction of board piece 1, and heat conduction piece 6 is staggered distribution with notch 2.

[0029] As Figure 1 、 Figure 3 、 Figure 4 And Figure 5 As shown in the drawings, protection assembly 5 includes connecting plate one 501, connecting plate two 502, guide cylinder 503 and guide rod 504, guide cylinder 503 and guide rod 504 are symmetrically arranged, the top end of guide rod 504 is fixedly connected to the bottom of connecting plate one 501, and the bottom of guide rod 504 is movably connected to the inner side of guide cylinder 503, the bottom of guide cylinder 503 is fixedly connected to the top of connecting plate two 502, protection assembly 5 also includes adjusting rod 505, adjusting rod 505 is located on the opposite side of guide cylinder 503, the end of adjusting rod 505 is provided with internal hexagonal groove, adjusting rod 505 is rotated by internal hexagonal spanner, adjusting rod 505 penetrates connecting plate two 502, and adjusting rod 505 is rotatably connected with connecting plate two 502, guide cylinder 503 penetrates fixed block 3, and guide cylinder 503 is movably connected with fixed block 3, the outer side of adjusting rod 505 is provided with screw, the top end of adjusting rod 505 is threadedly connected with the bottom of fixed block 3, the inside of guide cylinder 503 is fixedly connected with reset spring 7, and the free end of reset spring 7 is fixedly connected with the end of guide rod 504, by rotating adjusting rod 505, the front end of adjusting rod 505 is deeply into the inside of fixed block 3, and adjusting rod 505 is rotatably connected with connecting plate two 502, so adjusting rod 505 moves, drives connecting plate two 502 to move synchronously, connecting plate two 502 pushes guide cylinder 503 to move synchronously, so as to adjust the distance between connecting plate two 502 and the bottom of board piece 1.

[0030] As Figure 1 、 Figure 3 、 Figure 4 And Figure 5As shown, the top end of the first connecting plate 501 and the bottom end of the second connecting plate 502 are fixedly connected with a set of symmetrical limiting columns 8, the top end of the first connecting plate 501 and the bottom end of the second connecting plate 502 are provided with gaskets 9, the gaskets 9 are provided with a set of symmetrical limiting holes 10, the limiting columns 8 are respectively matched with the limiting holes 10, and the depth of the limiting holes 10 is greater than the height of the limiting columns 8, in use, the plate 1 is fixed in the inside of the motor shell, the surface of the gasket 9 is provided with a plurality of friction strips, which is used for improving the connection tightness of the gasket 1 and the inside of the motor shell, reducing the rotation of the plate 1 as a whole, and the gasket 4 has a certain elasticity, which is used for absorbing the vibration of the plate 1, improving the stability of the plate 1, the gasket 9 at the top of the first connecting plate 501 is used for supporting the top end of the plate 1, reducing the damage of external impact to the surface elements of the plate 1, and the reset spring 7 can provide a moving space for the guide rod 504, thereby forming a certain protection interval at the top of the plate 1.

[0031] As shown in Figure 1 , Figure 2 and Figure 5 , the heat conduction piece 6 includes a connecting part 601, a supporting part 602 and a heat conduction part 603, the supporting part 602 and the heat conduction part 603 are symmetrically arranged, the supporting part 602 is fixedly connected to the two sides of the connecting part 601 respectively, the heat conduction part 603 is fixedly connected to the bottom end of the supporting part 602 respectively, the surface of the connecting part 601 is fixedly connected with the bottom of the plate 1, and the connecting part 601 is a fan shape, which is helpful for transferring the heat on the plate 1 to the connecting part 601, and then to the heat conduction part 603 through the supporting part 602, and then radiated from the heat conduction part 603, and the heat conduction piece 6 is a hollow structure, which is conducive to the dissipation of heat in the gap of the heat conduction piece 6, the supporting part 602 and the heat conduction part 603 are made of a material with a certain elasticity, when the plate 1 is axially subjected to pressure, the pressure is transmitted to the heat conduction piece 6, so that the supporting part 602 is deformed by being spread to both sides, thereby providing a certain moving space for the heat conduction piece 6, and when the supporting part 602 restores its shape, the heat conduction piece 6 is reset, and at the same time cooperates with the gasket 9 to improve the stability of the plate 1.

[0032] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A circuit board assembly for a compact brushless electric motor comprising a board member (1), characterized in that: The outer side of the plate piece (1) is provided with a plurality of notches (2), the inner side of the notch (2) is fixedly connected with a fixed block (3), the outer side of the fixed block (3) is fixedly connected with a gasket (4), the inner side of the notch (2) is provided with a protection assembly (5), and the protection assembly (5) is movably connected with the fixed block (3), and the bottom end of the plate piece (1) is fixedly connected with a plurality of heat conducting pieces (6), and the heat conducting pieces (6) are circularly arranged.

2. A compact brushless motor circuit board assembly as defined in claim 1, wherein: The cross-sectional area of the heat conducting piece (6) gradually increases from inside to outside along the radial direction of the plate piece (1), and the heat conducting piece (6) is staggered with the notch (2).

3. A compact brushless motor circuit board assembly as defined in claim 1, wherein: The protection assembly (5) comprises a connecting plate (501), a connecting plate (502), a guide cylinder (503) and a guide rod (504), the guide cylinder (503) and the guide rod (504) are symmetrically arranged, the top end of the guide rod (504) is fixedly connected to the bottom end of the connecting plate (501), and the bottom end of the guide rod (504) is movably connected to the inner side of the guide cylinder (503), and the bottom end of the guide cylinder (503) is fixedly connected to the top end of the connecting plate (502).

4. A compact brushless motor circuit board assembly as defined in claim 3, wherein: The protection assembly (5) further comprises an adjusting rod (505), the adjusting rod (505) is located on the opposite side of the guide cylinder (503), the adjusting rod (505) penetrates the connecting plate (502), and the adjusting rod (505) is rotatably connected with the connecting plate (502).

5. A compact brushless motor circuit board assembly as defined in claim 4, wherein: The guide cylinder (503) penetrates the fixed block (3), and the guide cylinder (503) is movably connected with the fixed block (3), the outer side of the adjusting rod (505) is provided with a thread, and the top end of the adjusting rod (505) is threadedly connected with the bottom end of the fixed block (3).

6. A compact brushless motor circuit board assembly as defined in claim 5, wherein: The inside of the guide cylinder (503) is fixedly connected with a reset spring (7), and the free end of the reset spring (7) is fixedly connected with the end of the guide rod (504).

7. A compact brushless motor circuit board assembly as defined in claim 4 wherein: The top end of the connecting plate (501) and the bottom end of the connecting plate (502) are fixedly connected with a group of symmetrical limiting columns (8), the top end of the connecting plate (501) and the bottom end of the connecting plate (502) are provided with a gasket (9), a group of symmetrical limiting holes (10) are formed in the gasket (9), and the limiting column (8) is matched with the limiting hole (10).

8. A compact brushless motor circuit board assembly according to claim 7, wherein: The depth of the limiting hole (10) is greater than the height of the limiting column (8).

9. A compact brushless motor circuit board assembly as defined in claim 1 wherein: The heat conducting piece (6) comprises a connecting portion (601), a supporting portion (602) and a heat conducting portion (603), the supporting portion (602) and the heat conducting portion (603) are symmetrically arranged, the supporting portion (602) is fixedly connected to the two sides of the connecting portion (601), and the heat conducting portion (603) is fixedly connected to the bottom end of the supporting portion (602).

10. A compact brushless motor circuit board assembly as defined in claim 9, wherein: The surface of the connecting portion (601) is fixedly connected with the bottom of the plate piece (1), and the connecting portion (601) is a fan shape.

Images