Inductor mounting structure in fan

Abstract

The utility model relates to an inductor mounting structure in a fan, which comprises a casing, a circuit board and an inductor are arranged in the casing, and the inductor mounting structure is characterized in that a plastic package shell is detachably connected in the casing, the inductor is fixed on the plastic package shell, and a connecting structure for connecting the inductor to the circuit board is arranged on the plastic package shell. The inductor and the circuit board are separated through the plastic package shell, and then the inductor is encapsulated on the plastic package shell through the epoxy resin, so that the situation that subsequent maintenance is difficult after the inductor is encapsulated in the machine shell directly through the epoxy resin is avoided, meanwhile, the plastic package shell is fixed in the machine shell, and the service life of the plastic package shell is prolonged. The vibration influence caused by high-speed operation of the fan can be reduced, and the effects of stable and reliable structure and convenience in later disassembly are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbine electronic component installation, and in particular to an inductor installation structure in a wind turbine. Background Art

[0002] The EC series fan is a fan composed of a brushless DC maintenance-free motor with a built-in intelligent control module and an impeller lock. The core part of the entire fan is the intelligent control module located inside the motor. The intelligent control module is also a circuit board, which is composed of many components. The inductor is a very important component. The stable working condition of the inductor and the reliable and convenient installation method will become important.

[0003] Since the fan will vibrate when running at high speed, if the installation method of the inductor is not appropriate, it may cause the connection of the inductor itself to loosen, thereby causing damage to the controller. In order to reduce the situation where the controller is damaged due to loose inductor connection, existing products usually use epoxy resin potting in the shell as a whole. Although this connection method can solve the problem of controller damage caused by loose inductor connection, when the inductor or other components installed in the shell are damaged and need maintenance, because the epoxy resin seals the shell as a whole, all electronic components need to be removed before repairing the components, and the epoxy resin needs to be cleaned up, which makes the subsequent maintenance process very time-consuming and labor-intensive. Even when the epoxy resin is combined with more electronic components, it will be impossible to repair, which is not conducive to use. Utility Model Content

[0004] In order to achieve the purpose of installing the inductor in the controller conveniently, stably and reliably while facilitating the subsequent disassembly and maintenance of the inductor, the present application provides an inductor installation structure in a fan.

[0005] The present application provides an inductor installation structure in a fan, which adopts the following technical solution:

[0006] An inductor installation structure in a fan comprises a casing, wherein a circuit board and an inductor are arranged in the casing, wherein a plastic package is detachably connected in the casing, the inductor is fixed on the plastic package, and a connection structure for connecting the inductor to the circuit board is arranged on the plastic package.

[0007] By adopting the above technical solution, when using, the inductor is first encapsulated in a plastic shell with epoxy resin, and then the plastic shell is installed in the casing, so that the inductor and the circuit board are isolated by the plastic shell. When the circuit board or the inductor needs to be repaired later, it is only necessary to remove the plastic shell. Compared with the method of using epoxy resin to directly encapsulate the inductor in the casing in the prior art, which causes the inductor and the circuit board to be encapsulated together and affects the subsequent maintenance, the above disassembly method is more convenient and simple, and thus facilitates the maintenance of the inductor. At the same time, the plastic shell is installed in the casing, and the vibration caused by the high-speed operation of the fan is reduced by the plastic shell, thereby ensuring the stability of the inductor installation and being more conducive to use.

[0008] Preferably, a mounting block is fixed to the outer wall of the plastic package shell, the mounting block is located at one end of the plastic package shell away from the circuit board, and a fixing structure for connecting the plastic package shell to the housing is provided on the mounting block.

[0009] By adopting the above technical solution, the plastic package shell is installed in the casing by arranging a fixing structure on the installation block during use.

[0010] Preferably, the fixing structure includes a fixing bolt arranged on the mounting block, a through hole is provided on the mounting block, a mounting hole is provided in the housing, and one end of the fixing bolt passes through the through hole and is threadedly connected in the mounting hole.

[0011] By adopting the above technical solution, when in use, one end of the fixing bolt is passed through the through hole and then threadedly connected in the mounting hole, so that the plastic package shell is fixed in the casing by the fixing bolt, which is simple and convenient to use.

[0012] Preferably, a plurality of the mounting blocks are provided, and the plurality of mounting blocks are arranged at intervals around the inductor.

[0013] By adopting the above technical solution, the stability of the plastic shell installed in the casing is increased through the joint action of multiple installation blocks and fixing bolts during use, thereby reducing the shaking caused by the high-speed operation of the fan.

[0014] Preferably, a receiving cavity for encapsulating epoxy resin to fix the inductor is opened at one end of the plastic package shell.

[0015] By adopting the above technical solution, the inductor is placed in the storage cavity and sealed with epoxy resin during use to fix the inductor. At the same time, the inductor is isolated from the circuit board by the inner wall of the storage cavity, thereby avoiding affecting the installation of the circuit board when sealing with epoxy resin, thereby facilitating later maintenance.

[0016] Preferably, a positioning groove for positioning the inductor is formed on the bottom wall of the receiving cavity.

[0017] By adopting the above technical solution, a positioning groove is provided during use. When installing the inductor, the end of the inductor is inserted and embedded in the positioning groove to fix the inductor, thereby facilitating the subsequent sealing of the epoxy resin in the storage cavity.

[0018] Preferably, the connection structure comprises a wiring copper sheet arranged on the plastic package shell, and the circuit board is provided with a plug hole for use with the wiring copper sheet.

[0019] By adopting the above technical solution, the connection between the inductor in the plastic package and the circuit board can be achieved by inserting the wiring copper sheet into the plug hole during use, which is simple and convenient to use.

[0020] Preferably, the housing comprises a shell and a cover arranged on the shell, the shell is provided with an installation cavity, the plastic shell, the circuit board and the inductor are all installed in the installation cavity, and the cover is used to seal the installation cavity.

[0021] By adopting the above technical solution, the plastic package shell, the circuit board and the inductor are packaged together through the cooperation of the cover and the shell during use, thereby facilitating the subsequent assembly of the shell.

[0022] Preferably, a clamping block is fixed to one end of the plastic package shell, and a clamping groove for embedding the clamping block is provided on the shell.

[0023] By adopting the above technical solution, when in use, the plastic package shell with the potted inductor is placed in the installation cavity, so that the clamping block on the plastic package shell is embedded in the clamping groove on the shell, thereby realizing the positioning of the plastic package shell, thereby facilitating the subsequent fixation of the plastic package shell and facilitating use.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. When in use, the inductor is potted in the plastic shell with epoxy resin, and then the plastic shell is fixed in the casing with fixing bolts to achieve the installation of the inductor. At the same time, the inductor and the circuit board are isolated by the plastic shell to avoid affecting the installation of the circuit board when the epoxy resin is used to pot the inductor. When the inductor needs to be maintained, only the plastic shell needs to be removed. The overall disassembly process is simpler and more convenient than the existing technology, and also ensures the installation stability of the inductor;

[0026] 2. When in use, a wiring copper sheet is arranged on the plastic package shell, and a plug hole is opened on the circuit board, so that the connection between the inductor and the circuit board is realized by inserting the wiring copper sheet into the plug hole, which is simple and convenient to use;

[0027] 3. When in use, a clamping block is provided on the plastic shell, and a clamping groove is opened on the shell. When installing the plastic shell, the clamping block is embedded in the clamping groove to achieve positioning of the plastic shell, thereby facilitating the subsequent installation of fixing bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an axonometric diagram mainly showing the overall structure in the embodiment of the present application;

[0029] Figure 2 It is an axonometric diagram mainly showing the casing structure in the embodiment of the present application;

[0030] Figure 3 This is an exploded view of the housing structure in the embodiment of the present application.

[0031] Figure 4 It is an exploded view mainly showing the casing connection structure in the embodiment of the present application;

[0032] Figure 5 It is a cross-sectional view mainly showing the connection structure between the inductor and the plastic package shell in the embodiment of the present application;

[0033] Figure 6 It is an exploded view mainly showing the connection structure between the plastic package shell and the circuit board in the embodiment of the present application.

[0034] Figure numerals: 1, casing; 11, cover; 12, shell; 13, installation cavity; 2, circuit board; 3, inductor; 4, plastic shell; 41, storage cavity; 42, positioning groove; 5, connection structure; 51, wiring copper sheet; 52, plug hole; 6, installation block; 7, fixing structure; 71, fixing bolt; 8, clamping block; 9, clamping groove. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 -Attached Figure 6 This application is described in further detail.

[0036] The embodiment of the present application discloses an inductor installation structure in a fan.

[0037] Reference Figure 1 and Figure 2 An inductor installation structure in a fan includes a horizontally placed casing 1, the casing 1 is composed of a shell 12 and a cover 11, the shell 12 is horizontally placed, the cover 11 is located below the shell 12, the cover 11 is used to connect other components of the fan, and the cover 11 is fixedly connected to the shell 12 by bolts.

[0038] Reference Figure 3 and Figure 4A mounting cavity 13 is provided on the upper end surface of the shell 12, and a circuit board 2, an inductor 3 and a plastic shell 4 are arranged in the mounting cavity 13. The cover 11 is used to encapsulate the circuit board 2, the inductor 3 and the plastic shell 4 in the mounting cavity 13. A clamping groove 9 is provided on the bottom wall of the mounting cavity 13, and a clamping block 8 is integrally formed at the bottom end of the plastic shell 4, and the clamping block 8 can be embedded in the clamping groove 9. A mounting block 6 is welded on the outer wall of the plastic shell 4 near the bottom end, and a plurality of mounting blocks 6 are provided, and the plurality of mounting blocks 6 are spaced apart on the surrounding side of the inductor 3.

[0039] Reference Figure 3 and Figure 4 In this embodiment, four mounting blocks 6 are preferably provided, and the four mounting blocks 6 are symmetrically arranged on both sides of the plastic package shell 4. A fixing structure 7 is provided on the mounting block 6, and the fixing structure 7 is used to connect the plastic package shell 4 to the shell 12. The fixing structure 7 includes a fixing bolt 71 provided on the mounting block 6. A through hole is provided on the mounting block 6, and a mounting hole is provided on the inner bottom wall of the shell 12. One end of the fixing bolt 71 abuts against the mounting block 6, and the other end of the fixing bolt 71 passes through the through hole and is threadedly connected in the mounting hole.

[0040] Reference Figure 3 and Figure 4 When in use, the plastic shell 4 is placed into the installation cavity 13 so that the clamping block 8 on the plastic shell 4 is embedded in the clamping groove 9, thereby realizing the positioning of the plastic shell 4, and then the plastic shell 4 is fixed on the shell 12 by screwing the fixing bolts 71, thereby realizing the connection between the plastic shell 4 and the shell 12.

[0041] Reference Figure 3 and Figure 5 A storage cavity 41 is provided at the top of the plastic package shell 4, and the inductor 3 is arranged in the storage cavity 41. A positioning groove 42 is provided on the bottom wall of the storage cavity 41, and the bottom end of the inductor 3 can be embedded in the positioning groove 42. When in use, the inductor 3 is placed in the storage cavity 41 so that the bottom end of the inductor 3 is embedded in the positioning groove 42, thereby realizing the positioning of the inductor 3, and then epoxy resin can be poured into the storage cavity 41 to fix the inductor 3 in the storage cavity 41. During the epoxy resin pouring process, the positioning block is limited by the positioning groove 42 to prevent the inductor 3 from shaking and causing the inductor 3 to shift, thereby affecting the fixing quality of the inductor 3.

[0042] Reference Figure 5 and Figure 6A connecting structure 5 is also provided on the plastic package shell 4. The connecting structure 5 is used to connect the inductor 3 and the circuit board 2. The connecting structure 5 includes a wiring copper sheet 51. The wiring copper sheet 51 is electrically connected to the inductor 3. Two wiring copper sheets 51 are provided, and the two wiring copper sheets 51 are arranged side by side on the plastic package shell 4. One end of the wiring copper sheet 51 is fixed on the inner wall of the storage cavity 41, and the other end is located outside the storage cavity 41. A plug hole 52 is opened on the circuit board 2, and the plug hole 52 is used for inserting the wiring copper sheet 51.

[0043] Reference Figure 5 and Figure 6 When in use, the lead of the inductor 3 is hung on the wiring copper sheet 51, and then encapsulated with epoxy resin to achieve the installation of the inductor 3 and the plastic package 4. After that, the plastic package 4 with the potted inductor 3 is installed in the housing 12, and then the circuit board 2 is placed on the plastic package 4, and connected and fixed through the pins on the circuit board 2. At the same time, the end of the wiring copper sheet 51 is inserted into the plug hole 52, so that the connection between the inductor 3 and the circuit board 2 can be achieved. At the same time, the plug-in type wiring copper sheet 51 installation is more conducive to later disassembly and maintenance.

[0044] The implementation principle of the embodiment of the present application is as follows: when in use, the inductor 3 is first placed in the storage cavity 41 on the plastic shell 4, and the bottom end of the inductor 3 is embedded in the positioning groove 42, and then the lead of the inductor 3 is hung on the wiring copper sheet 51, and then the inductor 3 is potted in the storage cavity 41 as a whole by epoxy resin, so as to achieve the installation of the inductor 3 and the plastic shell 4, and then the plastic shell 4 with the inductor 3 installed is placed in the installation cavity 13 on the shell 12, and the positioning of the plastic shell 4 is achieved by embedding the clamping block 8 on the plastic shell 4 into the clamping groove 9 on the shell 12, and then fixed by screwing. Bolts 71 fix the plastic shell 4 in the shell 12, thereby completing the assembly of the plastic shell 4 and the shell 12, and then the shell 12 can be assembled with other components of the fan to complete the overall combination of the fan; when the inductor 3 needs to be disassembled and repaired, it is only necessary to disassemble the plastic shell 4. Compared with the method of potting the inductor 3 and the circuit board 2 together in the prior art, maintenance is simpler and more convenient. At the same time, when the fan is running at high speed, the installation of the plastic shell 4 and the shell 12 increases the fixing stability of the inductor 3, thereby reducing the vibration caused by the high-speed operation of the fan.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An inductor installation structure in a fan, comprising a housing (1), wherein a circuit board (2) and an inductor (3) are arranged in the housing (1), characterized in that: A plastic package (4) is detachably connected inside the housing (1), the inductor (3) is fixed on the plastic package (4), and a connection structure (5) for connecting the inductor (3) to the circuit board (2) is provided on the plastic package (4).

2. The inductor installation structure in a fan according to claim 1, characterized in that: A mounting block (6) is fixed to the outer wall of the plastic package shell (4), the mounting block (6) is located at one end of the plastic package shell (4) away from the circuit board (2), and a fixing structure (7) for connecting the plastic package shell (4) to the housing (1) is provided on the mounting block (6).

3. The inductor installation structure in a fan according to claim 2, characterized in that: The fixing structure (7) comprises a fixing bolt (71) arranged on the mounting block (6); a through hole is provided on the mounting block (6); a mounting hole is provided in the housing (1); one end of the fixing bolt (71) passes through the through hole and is threadedly connected in the mounting hole.

4. The inductor installation structure in a fan according to claim 2, characterized in that: A plurality of the mounting blocks (6) are provided, and the plurality of mounting blocks (6) are arranged at intervals on the peripheral side of the inductor (3).

5. The inductor installation structure in a fan according to claim 4, characterized in that: A receiving cavity (41) for encapsulating epoxy resin to fix the inductor (3) is provided at one end of the plastic package shell (4).

6. The inductor installation structure in a fan according to claim 5, characterized in that: A positioning groove (42) for positioning the inductor (3) is provided on the bottom wall of the storage cavity (41).

7. The inductor installation structure in a fan according to claim 1, characterized in that: The connection structure (5) comprises a copper wiring sheet (51) arranged on the plastic package shell (4), and a plug hole (52) for use with the copper wiring sheet (51) is provided on the circuit board (2).

8. The inductor installation structure in a fan according to claim 1, characterized in that: The housing (1) comprises a shell (12) and a cover (11) arranged on the shell (12); an installation cavity (13) is provided on the shell (12); the plastic package shell (4), the circuit board (2) and the inductor (3) are all installed in the installation cavity (13); and the cover (11) is used to seal the installation cavity (13).

9. The inductor installation structure in a fan according to claim 8, characterized in that: A clamping block (8) is fixed to one end of the plastic package shell (4), and a clamping groove (9) for embedding the clamping block (8) is provided on the shell (12).

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