Printed circuit board connecting device

Abstract

The utility model discloses a printed circuit board connecting device, which comprises a fan motor stator, a printed circuit board main body, four groups of supporting seats, square holes and a clamping seat, the periphery of one end of the fan motor stator is fixedly provided with four groups of supporting seats, the periphery of the printed circuit board main body is provided with three groups of square holes, the clamping seats penetrate through the square holes and are connected with the printed circuit board body in a clamping mode, the printed circuit board body is limited and fixed in cooperation with the supporting seats, meanwhile, the clamping seats are stable in structure, the influence of motor vibration is small, and under the condition that the motor works continuously, the clamping seats are not prone to falling off, and the service life of the motor is prolonged. The printed circuit board body is prevented from being separated from the fan motor stator, the printed circuit board body can be installed on the fan motor stator in a pressing mode, operation is convenient, the structure is simple, the position is saved in the limited internal space of the motor, and the internal structure of the motor is more compact.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stator circuit board installation, in particular to a printed circuit board connection device. Background Technique

[0002] The motor stator is an important part of motors such as generators and starters. The stator is an important part of the motor. The stator consists of three parts: a stator core, a stator winding, and a frame. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by magnetic lines of force in the rotating magnetic field to generate current.

[0003] With the continuous development of hanging electric fans, their functions are increasing, their volume is getting smaller, and their structure is getting more compact. Their control systems must be equipped with a powerful printed circuit board. To fix the printed circuit board, the printed circuit board is usually fixed to the stator of the fan motor with screws. Since the electric fan often rotates continuously for 24 hours, vibration cannot be avoided. Over time, the screws fixing the printed circuit board will become loose, and further, the screws will fall off, causing the printed circuit board to malfunction or even be damaged. At the same time, tools are needed to disassemble and assemble the screws, which is very inconvenient to operate in the compact internal structure of the motor. Content of the Utility Model

[0004] The purpose of the utility model is to provide a printed circuit board connection device. The card seat with barbed wedges is clamped with the square holes on the main body of the printed circuit board, and the support seat is used to clamp the main body of the printed circuit board. It not only installs the main body of the printed circuit board, but also ensures the stability of the main body of the printed circuit board, avoiding the loosening of bolts caused by the influence of motor vibration in the traditional circuit board fixing method. The structure is simple and reliable, and it is convenient to operate, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A printed circuit board connection device includes a fan motor stator and a main body of the printed circuit board, and also includes a support seat, square holes, and a card seat. Four groups of support seats are fixed around one end of the fan motor stator. Three groups of square holes are opened around the main body of the printed circuit board. One end of three groups of the support seats away from the fan motor stator is fixed with a card seat, and the end of the card seat away from the support seat penetrates through the square hole and is clamped with the other side of the main body of the printed circuit board.

[0006] Preferably, the fan motor stator includes a sleeve, and multiple groups of silicon steel sheets are clamped on the outer side of the sleeve from top to bottom in sequence. A fixing seat is fixed on the outer side of the sleeve. The shape of the fixing seat is the same as that of the silicon steel sheet. A coil group is wound on the fixing seat and the silicon steel sheet. One end of the sleeve is fixed with a support plate, and the fixing seat is close to one end of the support plate.

[0007] Preferably, the support base is fixed on the side of the fixed base away from the silicon steel sheet, and the support bases are symmetrically distributed at equal angles along the central axis of the sleeve. The side of the support base away from the fixed base is attached to the printed circuit board body.

[0008] Preferably, positioning blocks are fixed on the outer side of the support plate, and positioning grooves for engaging with the positioning blocks are formed in the printed circuit board body. The positioning grooves correspond to the positions of a group of support bases that do not fix the card seat.

[0009] Preferably, the card seat includes an elastic support block, and barbs are fixed on the side surface of the support block.

[0010] Preferably, bumps are integrally formed on the periphery of the outer side of the sleeve, grooves are formed on the inner side of the silicon steel sheet, and the bumps extend into the inner cavity of the grooves.

[0011] Preferably, limiting grooves are formed on the opposite sides of the support base, a support ring is movably arranged inside the support base, and the support ring is clamped in the limiting grooves.

[0012] Preferably, components are distributed on the side of the printed circuit board body away from the fan motor stator. A central hole is formed at the center of the printed circuit board body. The diameter of the central hole is larger than the inner diameter of the sleeve and smaller than the size of the support plate.

[0013] Preferably, the barbs are located on the side of the support block away from the support ring. The width of the square hole is equal to the sum of the thicknesses of the support block and the barbs. The side of the support block close to the barbs is attached to the inner wall of the square hole.

[0014] Preferably, a hole having the same inner diameter as the sleeve is formed at the center of the support plate. The side of the support plate away from the sleeve is attached to the side of the printed circuit board body away from the components.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By using the card seat to penetrate the square hole and engage with the printed circuit board body, and cooperating with the support base to limit and fix the printed circuit board body, the card seat has a stable structure and is little affected by the vibration of the motor. In the case of continuous operation of the motor, the separation of the printed circuit board body from the fan motor stator is avoided. At the same time, the printed circuit board body can be installed on the fan motor stator by pressing, which is convenient to operate, and has a simple structure, saving space in the limited internal space of the motor and making the internal structure of the motor more compact.

[0017] 2. Through the cooperation of the limiting groove and the support ring, it is convenient to support the support base from the inside, avoiding the shaking of the card seat and causing the separation of the card seat from the printed circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three - dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is an exploded three - dimensional structural schematic diagram of the present utility model;

[0020] Figure 3 is a split three - dimensional structural schematic diagram of the stator of the fan motor of the present utility model;

[0021] Figure 4 is a partial three - dimensional structural schematic diagram of the stator of the fan motor of the present utility model.

[0022] Reference numerals in the figure: 1, stator of the fan motor; 101, sleeve; 102, silicon steel sheet; 103, fixing seat; 104, coil group; 105, support plate; 2, main body of the printed circuit board; 3, support seat; 4, square hole; 5, card seat; 51, support block; 52, barb; 6, positioning block; 7, positioning groove; 8, convex block; 9, groove; 10, limiting groove; 11, support ring; 12, component; 13, central hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0024] The present utility model provides a printed circuit board connection device as shown in Figures 1 to 4 , which includes a stator 1 of a fan motor and a main body 2 of a printed circuit board, and further includes a support seat 3, a square hole 4 and a card seat 5. Four groups of support seats 3 are fixed around one end of the stator 1 of the fan motor. Three groups of square holes 4 are provided around the main body 2 of the printed circuit board. One end of the three groups of support seats 3 away from the stator 1 of the fan motor is fixed with a card seat 5. One end of the card seat 5 away from the support seat 3 penetrates through the square hole 4 and is clamped with the other side of the main body 2 of the printed circuit board;

[0025] By using the card seat 5 to penetrate through the square hole 4 and be clamped with the main body 2 of the printed circuit board, and cooperating with the support seat 3 to limit and fix the main body 2 of the printed circuit board. At the same time, the structure of the card seat 5 is stable and less affected by the vibration of the motor. In the case of continuous operation of the motor, the separation of the main body 2 of the printed circuit board from the stator 1 of the fan motor is avoided. At the same time, the main body 2 of the printed circuit board can be installed on the stator 1 of the fan motor by pressing, which is convenient to operate, and the structure is simple, saving space in the limited internal space of the motor and making the internal structure of the motor more compact.

[0026] Furthermore, as Figures 2 - 4 shown, the stator 1 of the fan motor includes a sleeve 101. Multiple groups of silicon steel sheets 102 are clamped on the outer side of the sleeve 101 in sequence from top to bottom. A fixing seat 103 is fixed on the outer side of the sleeve 101. The outer shape of the fixing seat 103 is the same as that of the silicon steel sheet 102. A coil group 104 is wound around the fixing seat 103 and the silicon steel sheet 102. One end of the sleeve 101 is fixed with a support plate 105. By defining the structure of the stator 1 of the fan motor, the silicon steel sheet 102 is supported by the fixing seat 103, and then the coil group 104 is wound around the silicon steel sheet 102. At the same time, the support plate 105 can support the printed circuit board main body 2.

[0027] Furthermore, as Figures 2 - 4 shown, the support seats 3 are fixed on the side of the fixing seat 103 away from the silicon steel sheet 102. The support seats 3 are symmetrically distributed at equal angles along the central axis of the sleeve 101. The side of the support seats 3 away from the fixing seat 103 is attached to the printed circuit board main body 2. By setting the position of the support seats 3, it is convenient to support the printed circuit board main body 2. At the same time, the equal-angle distribution ensures that the printed circuit board main body 2 remains stable and avoids the printed circuit board main body 2 shaking due to its own instability.

[0028] Preferably, as Figure 2 shown, a positioning block 6 is fixed on the outer side of the support plate 105. A positioning groove 7 for clamping the positioning block 6 is formed on the printed circuit board main body 2. The positioning groove 7 corresponds to the position of a group of support seats 3 that do not fix the card seat 5. Through the cooperation of the positioning block 6 and the positioning groove 7, it is convenient to position the printed circuit board main body 2 when the printed circuit board main body 2 is connected to the stator 1 of the fan motor, and avoid the installation angle of the printed circuit board main body 2 being misaligned, resulting in the circuit connection of the printed circuit board main body 2 being disordered in the later stage.

[0029] In addition, as Figure 4 shown, the card seat 5 includes an elastic support block 51. Barbs 52 are fixed on the side surface of the support block 51. By setting the structure of the card seat 5, the support block 51 penetrates the square hole 4, and the barbs 52 penetrate to the other side of the printed circuit board main body 2. At the same time, the barbs 52 are clamped with the printed circuit board main body 2 to limit the position of the printed circuit board main body 2 and cooperate with the support plate 105 to limit the printed circuit board main body 2.

[0030] It should be noted that, as Figure 3As shown, bumps 8 are integrally formed around the outer side of the sleeve 101, grooves 9 are formed inside the silicon steel sheet 102, and the bumps 8 extend into the inner cavity of the grooves 9. By engaging the bumps 8 provided on the outer side of the sleeve 101 with the grooves 9 on the silicon steel sheet 102, the silicon steel sheet 102 can be positioned to ensure that the upper and lower silicon steel sheets 102 are neatly arranged.

[0031] Preferably, as Figure 2 and Figure 3 shown, limiting grooves 10 are formed on the opposite sides of the support seats 3, a support ring 11 is movably arranged inside the support seats 3, and the support ring 11 is engaged in the limiting grooves 10. Through the cooperation of the limiting grooves 10 and the support ring 11, it is convenient to support the support seats 3 from the inside to prevent the card seat 5 from shaking and causing the card seat 5 to separate from the printed circuit board.

[0032] Preferably, as Figure 2 shown, components 12 are distributed on the side of the printed circuit board main body 2 away from the fan motor stator 1, a central hole 13 is formed at the center of the printed circuit board main body 2, the diameter of the central hole 13 is larger than the inner diameter of the sleeve 101 and smaller than the size of the support plate 105. By arranging the components 12 on the outer side of the printed circuit board main body 2, the integrity of the structure of the printed circuit board main body 2 is ensured and the circuit is made unobstructed.

[0033] In addition, as Figure 2 shown, barbs 52 are located on the side of the support block 51 away from the support ring 11, the width of the square hole 4 is equal to the sum of the thicknesses of the support block 51 and the barbs 52, and the side of the support block 51 close to the barbs 52 is attached to the inner wall of the square hole 4. By setting the size and position of the square hole 4, it is ensured that the support block 51 is attached to the inner wall of the square hole 4, and at the same time, the barbs 52 penetrate through the square hole 4 and are engaged with the printed circuit board main body 2 to limit the position of the printed circuit board main body 2 and ensure the stability of the printed circuit board main body 2 on the fan motor stator 1.

[0034] In addition, as Figures 2 - 4 shown, a hole having the same inner diameter as the sleeve 101 is formed at the center of the support plate 105, and the side of the support plate 105 away from the sleeve 101 is attached to the side of the printed circuit board main body 2 away from the components 12. By forming a hole in the support plate 105 and defining the size of the hole, it is ensured that the fan rotor penetrates through the sleeve 101 and the support plate 105 to prevent the stator and the rotor from colliding. Then, the support plate 105 is attached to the outer side of the printed circuit board main body 2 to facilitate the cooperation with the barbs 52 to limit the printed circuit board main body 2.

[0035] During specific use, the silicon steel sheet 102 is sleeved on the outer side of the sleeve 101. By utilizing the cooperation of the convex block 8 and the groove 9, the silicon steel sheet 102 is kept neat. Then, a coil group 104 is wound around the outer side of the silicon steel sheet 102. At the same time, the side of the printed circuit board main body 2 close to the support plate 105 is made, such that the side of the component 12 on the printed circuit board main body 2 is away from the fan motor stator 1. Then, the support ring 11 is snap-fitted into the limit groove 10. Subsequently, the positioning block 6 on the support plate 105 is aligned with the positioning groove 7. Then, the printed circuit board main body 2 is brought close to the support plate 105, such that the card seat 5 penetrates through the square hole 4. When the barb 52 moves into the square hole 4, the support block 51 bends inwards, such that the barb 52 penetrates through the square hole 4 and is snap-fitted with the other side of the printed circuit board main body 2. At the same time, the support ring 11 restricts the stability of the card seat 5 by supporting the support seat 3, ensuring that the printed circuit board main body 2 is stably installed on the fan motor stator 1 under the restriction of the support plate 105 and the barb 52.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printed circuit board connection device, comprising a fan motor stator (1) and a printed circuit board main body (2), characterized in that: It further includes a support base (3), a square hole (4), and a clamping seat (5). Four groups of support bases (3) are fixed around one end of the fan motor stator (1). Three groups of square holes (4) are formed around the printed circuit board main body (2). One end of three groups of the support bases (3) away from the fan motor stator (1) is fixed with a clamping seat (5). One end of the clamping seat (5) away from the support base (3) penetrates through the square hole (4) and is clamped to the other side of the printed circuit board main body (2).

2. The printed circuit board connection device according to claim 1, wherein: The fan motor stator (1) includes a sleeve (101). Multiple groups of silicon steel sheets (102) are sequentially clamped on the outer side of the sleeve (101) from top to bottom. A fixing seat (103) is fixed on the outer side of the sleeve (101). The outer shape of the fixing seat (103) is the same as that of the silicon steel sheet (102). A coil group (104) is wound on the fixing seat (103) and the silicon steel sheet (102). One end of the sleeve (101) is fixed with a support plate (105). One end of the fixing seat (103) is close to the support plate (105).

3. The printed circuit board connection device according to claim 1, wherein: The support base (3) is fixed on the side of the fixing seat (103) away from the silicon steel sheet (102). The support bases (3) are symmetrically distributed at equal angles along the central axis of the sleeve (101). One side of the support base (3) away from the fixing seat (103) is attached to the printed circuit board main body (2).

4. The printed circuit board connection device according to claim 2, wherein: A positioning block (6) is fixed on the outer side of the support plate (105). A positioning groove (7) engaged with the positioning block (6) is formed on the printed circuit board main body (2). The positioning groove (7) corresponds to the position of a group of support bases (3) that do not fix the clamping seat (5).

5. The printed circuit board connection device according to claim 1, characterized in that: The clamping seat (5) includes an elastic support block (51). Barbs (52) are fixed on the side surface of the support block (51).

6. The printed circuit board connection device according to claim 2, characterized in that: Protrusions (8) are integrally formed around the outer side of the sleeve (101). Grooves (9) are formed on the inner side of the silicon steel sheet (102). The protrusions (8) extend into the inner cavity of the grooves (9).

7. The printed circuit board connection device according to claim 1, characterized in that: Limit grooves (10) are formed on the opposite sides of the support base (3). A support ring (11) is movably arranged inside the support base (3). The support ring (11) is clamped in the limit grooves (10).

8. The printed circuit board connection device according to claim 1, wherein: Components (12) are distributed on the side of the printed circuit board main body (2) away from the fan motor stator (1). A central hole (13) is formed at the center of the printed circuit board main body (2). The diameter of the central hole (13) is larger than the inner diameter of the sleeve (101) and smaller than the size of the support plate (105).

9. The printed circuit board connection device according to claim 5, wherein: The barbs (52) are located on the side of the support block (51) away from the support ring (11). The width of the square hole (4) is equal to the sum of the thicknesses of the support block (51) and the barbs (52). One side of the support block (51) close to the barbs (52) is attached to the inner wall of the square hole (4).

10. The printed circuit board connection device according to claim 2, characterized in that: A hole with the same inner diameter as the sleeve (101) is formed at the center of the support plate (105). One side of the support plate (105) away from the sleeve (101) is attached to the side of the printed circuit board main body (2) away from the components (12).

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