Frequency converter for large ceiling fan

Abstract

The utility model provides a frequency converter for a large ceiling fan, and belongs to the technical field of ceiling fan frequency converters. The box comprises a box body, a front cavity and a rear cavity are formed in the middle of the box body through a middle partition plate, a capacitor cavity located on the left side of the front cavity is formed in the left side of the front cavity through a left partition plate, and a plurality of capacitor storage holes are formed in the bottom of the capacitor cavity; the bottom of the wire board cavity is provided with heat dissipation through holes communicated with the rear cavity, the rear cavity is internally provided with heat dissipation fins covering the heat dissipation through holes, the lower side wall of the rear cavity is provided with a fan frame, the fan frame is provided with fan holes, the front side cover of the box body is provided with a front cover for sealing the front cavity, the rear side cover of the box body is provided with a rear cover for sealing the rear cavity, and the fan holes are formed in the fan frame. The rear cover is provided with a plurality of air holes. The utility model has the advantages of reasonable structural design, long service life and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of ceiling fan frequency converters, in particular to a frequency converter for large ceiling fans. Background Art

[0002] At present, large ceiling fans are usually equipped with frequency converters, which control the speed and duration of the ceiling fans through regulation.

[0003] The internal structure of a traditional inverter is relatively simple, the placement of the PCB and the terminals is relatively simple, and the components are placed relatively concentratedly. As a result, after long-term use, the components will fall off due to vibration and affect each other. In addition, the overall moisture-proof and heat dissipation effect is also poor, resulting in a short service life. Summary of the invention

[0004] The purpose of the utility model is to solve the above problems and provide a frequency converter for a large ceiling fan, which has a reasonable overall structural design, is not easy to affect each other between components and has a long service life.

[0005] The purpose of the utility model is achieved in this way:

[0006] A frequency converter for a large ceiling fan comprises a box body, wherein a front cavity and a rear cavity are formed in the middle of the box body through a middle partition, a capacitor cavity located on the left side of the front cavity is formed on the left side of the front cavity through a left partition, and a plurality of capacitor placement holes are provided at the bottom of the capacitor cavity, a line plate cavity and a wiring cavity are formed on the right side of the front cavity through a transverse partition, a heat dissipation through hole connected to the rear cavity is provided at the bottom of the line plate cavity, heat dissipation fins covering the heat dissipation through hole are provided in the rear cavity, a fan frame is provided on the lower side wall of the rear cavity, a fan hole is provided on the fan frame, a front cover of the box body is provided with a front cover sealing the front cavity, and a rear cover of the box body is provided with a rear cover sealing the rear cavity, and a plurality of air holes are provided on the rear cover.

[0007] The utility model is further configured such that a sub-plate cavity is arranged on the top of the front cavity, and a top cover covering the sub-plate cavity is arranged on the upper end of the front cover.

[0008] The utility model is further configured that the top cover is provided with a display hole, a button hole and a speaker hole located above the auxiliary board cavity.

[0009] The utility model is further configured that a plurality of top holes communicating with the top of the rear cavity are opened at the upper end of the top cover.

[0010] The utility model is further configured that the lower side wall of the auxiliary plate cavity is formed with auxiliary plate side frames for fixing the left and right sides of the auxiliary plate.

[0011] The utility model is further configured that a wiring row is fixedly arranged in the wiring cavity, a wiring hole is opened at the bottom of the wiring cavity, and a wire tube with one end located at the upper end of the wiring hole is arranged in the wiring hole.

[0012] The utility model is further configured that the inner wall of the wire tube is provided with a plurality of wire pressing protrusions.

[0013] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0014] 1. The inverter provided by the utility model forms various chambers in the box body, so that the components are relatively independent, the wiring is not easy to overlap, and the heat dissipation is stable, which effectively increases the service life.

[0015] 2. The utility model further provides a sub-board cavity for installing a sub-board, and sets a top cover for protection, thereby providing protection for the key part; various holes opened on the top cover facilitate pressing of the buttons.

[0016] 3. The top hole provided in the utility model is convenient for air intake and heat dissipation at the top of the rear cavity; the auxiliary board side frame provided can effectively limit the position of the auxiliary board to prevent vibration.

[0017] 4. The wire tube in the wiring cavity further provided in the present invention can facilitate bundling and arranging the wires connected to the wiring block to prevent the wires from loosening due to dragging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2

[0020] Figure 3 It is a partial structure diagram of the utility model. Figure 1 ;

[0021] Figure 4 It is a partial structure diagram of the utility model. Figure 2 ;

[0022] Figure 5 It is a partial structure diagram of the utility model. Figure 3

[0023] Reference numerals:

[0024] 1-box body; 10-middle partition;

[0025] 2-front cavity; 20-left partition; 21-capacitor cavity; 210-capacitor storage hole; 22-cross partition; 220-wire board cavity; 221-wiring cavity; 222-heat dissipation through hole; 2220-heat dissipation fin; 223-wiring row; 224-wiring hole; 225-conductor tube; 226-wire pressing protrusion; 23-fan frame; 230-fan hole; 24-sub-board cavity; 240-sub-board cavity side frame;

[0026] 3-posterior cavity;

[0027] 4-front cover; 40-top cover; 41-screen display hole; 42-button hole; 43-speaker hole; 44-top hole;

[0028] 5-rear cover; 50-air hole. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings. Figure 1 —5:

[0030] A frequency converter for a large ceiling fan comprises a box body 1, wherein a front cavity 2 and a rear cavity 3 are formed in the middle of the box body 1 through a middle partition 10, a capacitor cavity 21 located on the left side of the front cavity 2 is formed on the left side of the front cavity 2 through a left partition 20, and a plurality of capacitor placement holes 210 are provided at the bottom of the capacitor cavity 21, a line plate cavity 220 and a wiring cavity 221 are formed on the right side of the front cavity 2 through a transverse partition 22, a heat dissipation through hole 222 connected to the rear cavity 3 is provided at the bottom of the line plate cavity 220, a heat dissipation through hole 2220 covering the heat dissipation through hole 222 is provided in the rear cavity 3, a fan frame 23 is provided on the lower side wall of the rear cavity 3, a fan hole 230 is provided at the bottom of the fan frame 23, a front cover 4 for sealing the front cavity 2 is provided on the front side cover of the box body 1, a rear cover 5 for sealing the rear cavity 3 is provided on the rear side cover of the box body 1, and a plurality of air holes 50 are provided on the rear cover 5.

[0031] During the implementation, the main PCB board of the inverter is placed in the wire board cavity 220, and the wire board with a larger capacitor is placed in the capacitor cavity 21. The adjacent left partition 20 and the horizontal partition 22 are provided with wire holes for the wires to pass through. During use, each chamber is relatively independent and is not easily affected by each other; at the same time, the partition stabilizes the plates in each chamber, which is not easy to shake and is more stable in use.

[0032] In addition, the rear cavity is used to independently prevent the heat dissipation fins. Even if the heat dissipation fins are cooled and liquefied to produce condensed water, it will not affect the main circuit board in the circuit board cavity, thus ensuring the service life. At the same time, the fan rack at the bottom can be placed with an axial fan to dissipate heat through the fan hole 230, and the fan hole 230 is the air outlet, and the air inlet position is the air hole 50 opened on the back cover.

[0033] Preferably, a sub-plate cavity 24 is provided at the top of the front cavity 2 , and a top cover 40 covering the sub-plate cavity 24 is provided at the upper end of the front cover 4 .

[0034] Preferably, the top cover 40 is provided with a display hole 41 , a button hole 42 and a speaker hole 43 located above the sub-board cavity 24 .

[0035] Preferably, a plurality of top holes 44 communicating with the top of the rear cavity 3 are formed at the upper end of the top cover 40 .

[0036] In the above structure, the sub-board is used as a control board, and the top cover 40 provided can provide protection for the upper end of the sub-board cavity, and the extended screen hole 41, button hole 42 and speaker hole 43 are used for extending the screen and buttons on the sub-board. The provision of the top hole 44 is effective for heat dissipation of the sub-board in the sub-board cavity.

[0037] Preferably, the lower side wall of the sub-board cavity 24 is formed with a sub-board side frame 240 for fixing the left and right sides of the sub-board. The sub-board side frame 240 is used to fix the sub-board.

[0038] Preferably, a wiring row 223 is fixedly disposed in the wiring cavity 221 , a wiring hole 224 is opened at the bottom of the wiring cavity 221 , and a wire tube 225 with one end located at the upper end of the wiring hole 224 is disposed in the wiring cavity 221 .

[0039] Preferably, the inner wall of the wire tube 225 is provided with a plurality of wire pressing protrusions 226 .

[0040] In the actual wiring process, the ends of the wires are connected to the wiring row 223, and multiple groups of wires are inserted into the wire tube 225. The wires are bundled with the wire pressing protrusions 226 to prevent the wires from loosening.

[0041] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A frequency converter for a large ceiling fan, characterized in that: The invention comprises a box body (1), wherein the middle part of the box body (1) is formed with a front chamber (2) and a rear chamber (3) through a middle partition (10), the left side of the front chamber (2) is formed with a capacitor chamber (21) located on the left side of the front chamber (2) through a left partition (20), and the bottom of the capacitor chamber (21) is provided with a plurality of capacitor placement holes (210), and the right side of the front chamber (2) is formed with a line plate chamber (220) and a wiring chamber (221), and the bottom of the line plate chamber (220) is provided with a connection hole (210) connected to the rear chamber (210). 3), a heat dissipation through hole (222) connected to the rear cavity (3), a heat dissipation fin (2220) covering the heat dissipation through hole (222) is arranged in the rear cavity (3), a fan frame (23) is arranged on the lower side wall of the rear cavity (3), a fan hole (230) is opened at the bottom of the fan frame (23), the front side cover of the box body (1) is provided with a front cover (4) sealing the front cavity (2), and the rear side cover of the box body (1) is provided with a rear cover (5) sealing the rear cavity (3), and the rear cover (5) is provided with a plurality of air holes (50).

2. A frequency converter for a large ceiling fan according to claim 1, characterized in that: The top of the front cavity (2) is provided with a secondary plate cavity (24), and the upper end of the front cover (4) is provided with a top cover (40) covering the secondary plate cavity (24).

3. A frequency converter for a large ceiling fan according to claim 2, characterized in that: The top cover (40) is provided with a display hole (41), a button hole (42) and a speaker hole (43) located above the auxiliary board cavity (24).

4. The frequency converter for a large ceiling fan according to claim 2, characterized in that: The upper end of the top cover (40) is provided with a plurality of top holes (44) which are in communication with the top of the rear cavity (3).

5. The frequency converter for a large ceiling fan according to claim 2, characterized in that: The lower side wall of the auxiliary plate cavity (24) is formed with auxiliary plate side frames (240) for fixing the left and right sides of the auxiliary plate.

6. The frequency converter for a large ceiling fan according to claim 1, characterized in that: A wiring row (223) is fixedly arranged in the wiring cavity (221), a wiring hole (224) is opened at the bottom of the wiring cavity (221), and a wire tube (225) with one end located at the upper end of the wiring hole (224) is arranged in the wiring cavity (221).

7. The frequency converter for a large ceiling fan according to claim 6, characterized in that: The inner wall of the wire tube (225) is provided with a plurality of wire pressing protrusions (226).

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