Fan drive circuit mainboard

Abstract

The utility model discloses a fan driving circuit mainboard, which belongs to the technical field of fan accessories, aims at solving the problems that the stable operation of a fan is influenced by the infirm connection of a circuit board and the fan is difficult to take out from the interior of a rectangular groove, and comprises an outer shell, a dustproof cover, a connecting mechanism, a fixing mechanism, a circuit mainboard and a pop-up mechanism, the dustproof cover is installed in the middle of the upper portion of the outer shell through the connecting mechanism, the circuit mainboard is installed in a rectangular groove in the upper portion of the outer shell, the fixing mechanisms are symmetrically arranged on the two sides of the fixing mechanisms, the pop-up mechanism is arranged below the circuit mainboard, and the lower connecting plate is fixedly connected to the front end of the outer shell. The rotating shaft rotates to be connected to the upper part and the lower part of the rotating shaft; by means of the fixing mechanism, the circuit main board installed in the outer shell can be fixed, the circuit main board is prevented from falling off, the circuit board is fixedly installed, and the operation stability of the fan is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan accessories, and in particular relates to a fan drive circuit mainboard. Background Art

[0002] The fan drive circuit mainboard is a circuit board that controls the operation of the fan. Its main function is to receive and process signals from the control system, drive the fan motor to operate, and realize functions such as fan speed regulation and start and stop. Specifically, the fan drive circuit mainboard usually includes the following parts: control chip, power circuit, drive circuit, protection circuit. The fan drive circuit mainboard is a key component for the normal operation of the fan. Its performance and quality directly affect the performance and service life of the fan.

[0003] In the prior art, there is a fan drive circuit mainboard with patent announcement number CN219412993U. The transparent dust cover provided in the above patent is sealed in the arc groove for dust protection after closing. A rectangular hole connected to the inside of the fan housing is provided on the bottom wall of the rectangular groove. An outer frame plate is fixedly installed on the circuit mainboard. The outer frame plate is located in the rectangular groove and is engaged with the rectangular groove. The utility model saves the disassembly process, is convenient for maintenance operation, and is convenient to use. However, there are still the following deficiencies in actual use: from a practical point of view, after the circuit mainboard is installed in the rectangular groove by engaging, no fixed structure is provided, the connection with the circuit board is not firm, resulting in poor contact, affecting the stable operation of the fan. At the same time, since the size of the circuit board is generally small, it is difficult to take it out from the inside of the rectangular groove, which is inconvenient to use during disassembly.

[0004] Therefore, a fan driving circuit mainboard is needed to solve the problems in the prior art that the connection to the circuit board is not firm, affecting the stable operation of the fan and being difficult to remove from the inside of the rectangular slot. Utility Model Content

[0005] The purpose of the utility model is to provide a fan drive circuit mainboard to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fan drive circuit mainboard, comprising an outer shell, a dust cover, a connecting mechanism, a fixing mechanism, a circuit mainboard and a pop-up mechanism, wherein the dust cover is installed at the upper middle part of the outer shell through the connecting mechanism, the circuit mainboard is installed inside a rectangular groove above the outer shell, the fixing mechanism is symmetrically arranged on both sides of the fixing mechanism, and the pop-up mechanism is arranged below the circuit mainboard.

[0007] The connecting mechanism consists of a lower connecting plate, a rotating shaft, a rotating block, a torsion spring, a fixed plate and an upper connecting plate, the lower connecting plate is fixedly connected to the front end of the outer shell, the rotating shaft is rotated to be connected to the upper and lower parts of the lower connecting plate, the rotating block is fixedly connected to the bottom end of the rotating shaft, the torsion spring is fixedly connected between the bottom surface of the lower connecting plate and the top surface of the rotating block, and is sleeved on the outside of the rotating shaft, and the fixed plate is fixedly connected to the top surface of the rotating shaft.

[0008] It should be noted in the solution that the upper connecting plate is fixedly connected to the front end of the dust cover, and the distance between the bottom surface of the fixing plate and the top surface of the lower connecting plate is the same as the height of the upper connecting plate.

[0009] It is further worth explaining that the fixing mechanism is composed of a mounting plate, a positioning block, a first spring and a push plate, mounting grooves are symmetrically opened on both sides above the outer shell, the mounting plate is arranged inside the mounting groove, the positioning block is symmetrically fixedly connected to one side of the mounting plate, and the top of the positioning block is provided with an arc surface, and the first spring is fixedly connected between the mounting plate and the inner wall of the mounting groove.

[0010] It should be further explained that sliding grooves are symmetrically provided on the front and rear sides of the installation groove, and sliding blocks adapted to the sliding grooves are symmetrically fixedly connected on both sides of the installation plate.

[0011] As a preferred implementation, a push plate is fixedly connected to the top of the mounting plate, and anti-slip grooves are provided on both sides of the push plate.

[0012] As a preferred embodiment, the pop-up mechanism is composed of a second spring, a cross plate, an ejection block and a protrusion. A cavity structure is opened below the rectangular groove above the outer shell, and the cross plate is arranged inside the cavity structure. The second spring is symmetrically fixedly connected between the cross plate and the bottom surface of the cavity structure, and protrusions are symmetrically fixedly connected at both ends of the cross plate, and grooves matching the protrusions are symmetrically opened on both sides of the cavity structure.

[0013] As a preferred implementation, the ejection block is symmetrically fixedly connected to the top of the transverse plate, and the rectangular groove on the top of the outer shell is connected to the cavity structure through the ejection block.

[0014] Compared with the prior art, the fan drive circuit mainboard provided by the utility model has at least the following beneficial effects:

[0015] (1) The fixing mechanism can fix the circuit board installed inside the outer shell to prevent the circuit board from falling off. The circuit board is fixedly installed to ensure the stability of the fan operation.

[0016] (2) The ejection mechanism can automatically eject the released circuit board, making it easier to remove the circuit board and improving the user's removal efficiency. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a top view structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the fixing mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the internal structure of the ejection mechanism of the utility model.

[0021] In the figure: 1. outer shell; 2. dust cover; 3. connecting mechanism; 4. fixing mechanism; 5. circuit board; 6. pop-up mechanism; 301. lower connecting plate; 302. rotating shaft; 303. rotating block; 304. torsion spring; 305. fixing plate; 306. upper connecting plate; 401. mounting groove; 402. mounting plate; 403. positioning block; 404. first spring; 405. push plate; 406. slide groove; 601. cavity structure; 602. second spring; 603. cross plate; 604. ejection block; 605. protrusion. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the embodiments.

[0023] See also Figure 1-4 The utility model provides a fan drive circuit mainboard, including an outer shell 1, a dust cover 2, a connecting mechanism 3, a fixing mechanism 4, a circuit mainboard 5 and a pop-up mechanism 6. The dust cover 2 is installed on the upper middle part of the outer shell 1 through the connecting mechanism 3, the circuit mainboard 5 is installed in the rectangular groove above the outer shell 1, the fixing mechanism 4 is symmetrically arranged on both sides of the fixing mechanism 4, and the pop-up mechanism 6 is arranged below the circuit mainboard 5.

[0024] The connecting mechanism 3 consists of a lower connecting plate 301, a rotating shaft 302, a rotating block 303, a torsion spring 304, a fixed plate 305 and an upper connecting plate 306. The lower connecting plate 301 is fixedly connected to the front end of the outer shell 1, the rotating shaft 302 is rotatably connected to the upper and lower parts of the lower connecting plate 301, the rotating block 303 is fixedly connected to the bottom end of the rotating shaft 302, the torsion spring 304 is fixedly connected between the bottom surface of the lower connecting plate 301 and the top surface of the rotating block 303, and is sleeved on the outside of the rotating shaft 302, and the fixed plate 305 is fixedly connected to the top surface of the rotating shaft 302.

[0025] Further Figure 1 , Figure 2 and Figure 4 As shown, it is worth specifically explaining that the upper connecting plate 306 is fixedly connected to the front end of the dust cover 2, and the distance between the bottom surface of the fixing plate 305 and the top surface of the lower connecting plate 301 is the same as the height of the upper connecting plate 306;

[0026] First, rotate the rotating block 303 to drive the fixed plate 305 to rotate via the rotating shaft 302, and then rotate the dust cover 2 to close, place the upper connecting plate 306 on top of the lower connecting plate 301, and then release the rotating block 303. Due to the elastic force of the torsion spring 304, the fixed plate 305 is driven to reset, and the upper connecting plate 306 is fixed, so that the dust cover 2 is closed stably.

[0027] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth specifically explaining that the fixing mechanism 4 is composed of a mounting plate 402, a positioning block 403, a first spring 404 and a push plate 405. The outer shell 1 has mounting grooves 401 symmetrically provided on both sides above the outer shell 1. The mounting plate 402 is arranged inside the mounting groove 401. The positioning block 403 is symmetrically fixedly connected to one side of the mounting plate 402, and the top of the positioning block 403 is provided with an arc surface. The first spring 404 is fixedly connected between the mounting plate 402 and the inner wall of the mounting groove 401. The mounting groove 401 has sliding grooves 406 symmetrically provided on the front and rear sides, and the two sides of the mounting plate 402 are symmetrically fixedly connected with sliders adapted to the sliding grooves 406.

[0028] The sliding block is slidably connected to the inside of the sliding groove 406, so that the mounting plate 402 can stably perform linear motion, thereby ensuring the stable movement of the mounting plate 402.

[0029] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth to explain in detail that a push plate 405 is fixedly connected to the top of the mounting plate 402, and anti-slip grooves are provided on both sides of the push plate 405;

[0030] The push plate 405 is provided to facilitate the user to push the mounting plate 402, thereby improving the practicability of the device.

[0031] According to the above working process, it can be known that: through the setting of the fixing mechanism 4, the circuit main board 5 installed inside the outer shell 1 can be fixed to prevent the circuit main board 5 from falling off, and the circuit main board 5 is fixedly installed to ensure the stability of the fan operation.

[0032] Further Figure 1 , Figure 2 and Figure 4As shown, it is worth explaining in detail that the pop-up mechanism 6 is composed of a second spring 602, a cross plate 603, an ejection block 604 and a protrusion 605, a cavity structure 601 is opened below the rectangular groove above the outer shell 1, the cross plate 603 is arranged inside the cavity structure 601, the second spring 602 is symmetrically fixedly connected between the cross plate 603 and the bottom surface of the cavity structure 601, the two ends of the cross plate 603 are symmetrically fixedly connected with the protrusion 605, and the two sides of the cavity structure 601 are symmetrically opened with grooves adapted to the protrusion 605.

[0033] Further Figure 1 , Figure 2 and Figure 4 As shown, it is worth to explain in detail that the ejection block 604 is symmetrically fixedly connected to the top of the horizontal plate 603, and the rectangular groove on the top of the outer shell 1 is connected with the cavity structure 601 through the ejection block 604;

[0034] In the initial state of the second spring 602, the upper ejector block 604 protrudes from the bottom surface of the rectangular groove on the outer shell 1. When the circuit board 5 is fixedly installed inside the rectangular groove, the ejector block 604 is squeezed to make it flush with the bottom surface of the rectangular groove.

[0035] This solution has the following working process: when in use, first place the circuit main board 5 into the rectangular groove above the outer shell 1, first contact the arc surface on the positioning block 403, push the mounting plate 402, and then place the circuit main board 5 under the positioning block 403. Due to the elastic force of the first spring 404, the positioning block 403 is driven to reset, the position of the circuit main board 5 is fixed, and at the same time, the ejection block 604 below is pressed down so that the ejection block 604 is flush with the bottom surface of the rectangular groove above the outer shell 1; when the circuit main board 5 needs to be removed, the push plate 405 is pushed away from the circuit main board 5 to release the positioning block 403 from fixing the circuit main board 5. At the same time, due to the elastic force of the second spring 602, the ejection block 604 is driven to reset, and the circuit main board 5 is ejected from the inside of the rectangular groove, which is convenient for taking out the circuit main board 5.

[0036] In summary: through the setting of the fixing mechanism 4, the circuit main board 5 installed inside the outer shell 1 can be fixed to prevent the circuit main board 5 from falling off, and the circuit main board 5 can be fixedly installed to ensure the stability of the fan operation; through the setting of the pop-up mechanism 6, the released circuit main board 5 can be automatically ejected, which is convenient for taking out the circuit main board 5, thereby improving the user's taking out efficiency, with a simple structure and convenient operation.

Claims

1. A fan drive circuit mainboard, comprising an outer shell (1), a dust cover (2), a connecting mechanism (3), a fixing mechanism (4), a circuit mainboard (5) and an ejection mechanism (6), characterized in that: The dust cover (2) is mounted on the upper middle part of the outer shell (1) through a connecting mechanism (3); the circuit main board (5) is mounted inside a rectangular groove above the outer shell (1); the fixing mechanism (4) is symmetrically arranged on both sides of the fixing mechanism (4); and the ejection mechanism (6) is arranged below the circuit main board (5); The connecting mechanism (3) is composed of a lower connecting plate (301), a rotating shaft (302), a rotating block (303), a torsion spring (304), a fixed plate (305) and an upper connecting plate (306); the lower connecting plate (301) is fixedly connected to the front end of the outer shell (1); the rotating shaft (302) is rotated to be connected to the upper and lower parts of the lower connecting plate (301); the rotating block (303) is fixedly connected to the bottom end of the rotating shaft (302); the torsion spring (304) is fixedly connected between the bottom surface of the lower connecting plate (301) and the top surface of the rotating block (303), and is sleeved on the outside of the rotating shaft (302); and the fixed plate (305) is fixedly connected to the top surface of the rotating shaft (302).

2. A fan drive circuit mainboard according to claim 1, characterized in that: The upper connecting plate (306) is fixedly connected to the front end of the dust cover (2), and the distance between the bottom surface of the fixing plate (305) and the top surface of the lower connecting plate (301) is the same as the height of the upper connecting plate (306).

3. The fan drive circuit mainboard according to claim 1, characterized in that: The fixing mechanism (4) is composed of a mounting plate (402), a positioning block (403), a first spring (404) and a push plate (405); mounting grooves (401) are symmetrically provided on both sides of the upper side of the outer shell (1); the mounting plate (402) is arranged inside the mounting groove (401); the positioning block (403) is symmetrically fixedly connected to one side of the mounting plate (402); and a curved surface is provided at the top of the positioning block (403); and the first spring (404) is fixedly connected between the mounting plate (402) and the inner wall of the mounting groove (401).

4. A fan drive circuit mainboard according to claim 3, characterized in that: The installation groove (401) is symmetrically provided with sliding grooves (406) on both sides, front and rear, and sliding blocks adapted to the sliding grooves (406) are symmetrically fixedly connected to both sides of the installation plate (402).

5. The fan drive circuit mainboard according to claim 3, characterized in that: A push plate (405) is fixedly connected to the top of the mounting plate (402), and anti-slip grooves are provided on both sides of the push plate (405).

6. The fan drive circuit mainboard according to claim 1, characterized in that: The ejection mechanism (6) is composed of a second spring (602), a transverse plate (603), an ejection block (604) and a protrusion (605); a cavity structure (601) is provided below the upper rectangular groove of the outer shell (1); the transverse plate (603) is arranged inside the cavity structure (601); the second spring (602) is symmetrically fixedly connected between the transverse plate (603) and the bottom surface of the cavity structure (601); protrusions (605) are symmetrically fixedly connected at both ends of the transverse plate (603); and grooves matching the protrusions (605) are symmetrically provided on both sides of the cavity structure (601).

7. A fan drive circuit mainboard according to claim 6, characterized in that: The ejection block (604) is symmetrically fixedly connected to the top of the transverse plate (603), and the rectangular groove on the top of the outer shell (1) is connected to the cavity structure (601) through the ejection block (604).

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