CN218783791U - An anti-jamming active filter - Google Patents

Abstract

The utility model discloses an anti-interference active filter, including active filter, the inside top of active filter is equipped with ventilative dust guard, the inside both sides of active filter all are equipped with guide bar B, the outside cover of guide bar B is equipped with L type inserted bar, the inside of L type inserted bar is equipped with slot A, one side of L type inserted bar is equipped with the cover and establishes the outside spring B of guide bar B, active filter's top is equipped with ventilative dust guard, the both sides of ventilative dust guard all are equipped with the connecting block, two the top of connecting block is equipped with the fixed block, the inside of fixed block is equipped with movable groove A, movable groove A's inside is equipped with U type inserted bar, U type inserted bar inserts in the slot A, the inside of connecting block is equipped with slot B, L type inserted bar inserts in the slot B. The utility model discloses an install a plurality of heat dissipation fans, strengthen inside radiating effect.

Description

An anti-jamming active filter

technical field

The utility model relates to the technical field of anti-interference active filters, in particular to an anti-interference active filter.

Background technique

Active filter is a new type of power electronic device used to dynamically suppress harmonics and compensate reactive power. It can compensate harmonics and reactive power that vary in size and frequency. The reason why active filters are called Active, as the name implies, the device needs to provide power. Its application can overcome the shortcomings of traditional harmonic suppression and reactive power compensation methods such as LC filters, realize dynamic tracking compensation, and can complement both harmonics and reactive power.

Multi-circuit filter circuit, modular design, the failure of any module will not affect the normal operation of other modules, which greatly improves the reliability of the whole machine equipment, because this combination requires additional mounting brackets, which greatly reduces the installation cost. practicability, and when used in combination, the temperature of the contact area is too high, which affects the overall practicability efficiency and greatly reduces practicability.

Active filters require a lot of heat dissipation, and the existing ones rely on heat dissipation holes for heat dissipation, so the heat dissipation efficiency is extremely low, which affects the heat dissipation efficiency of the overall device.

Utility model content

The purpose of this utility model is to provide an anti-jamming active filter to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

An anti-jamming active filter, comprising an active filter, a breathable dust-proof plate is arranged above the inside of the active filter, guide rods B are arranged on both sides of the inside of the active filter, and guide rods B are arranged on both sides of the inside of the active filter. An L-shaped insertion rod is sheathed on the outside of the rod B, and a slot A is provided inside the L-shaped insertion rod, and a spring B sleeved on the outside of the guide rod B is provided on one side of the L-shaped insertion rod. The upper part of the active filter is provided with a ventilating dust-proof board, the two sides of the ventilating dust-proof board are provided with connection blocks, the top of the two connection blocks is provided with a fixed block, and the interior of the fixed block is provided with There is an active slot A, and the inside of the active slot A is provided with a U-shaped insert rod, and the U-shaped insert bar is inserted into the slot A, and the inside of the connecting block is provided with a slot B, and the L-shaped insert The rod is inserted into the slot B, two spring slots are provided on both sides of the active filter, a spring C is provided inside the spring slot, and a trapezoidal block is provided on one side of the spring C , both sides of the lower end surface of the air-permeable and dust-proof board are provided with a heat dissipation fan shell, and a trapezoidal card slot is provided inside one side of the heat sink fan shell, and the trapezoidal card block is inserted into the trapezoidal card slot, and the A heat dissipation fan is arranged inside the heat dissipation fan housing.

Preferably, the inside of the connecting block is provided with a movable groove B, the inside of the movable groove B is provided with a guide rod A, and the outside of the guide rod A is provided with a guide block located in the middle of the U-shaped insert rod .

Preferably, the inside of the fixed block is provided with a slide groove, and the inside of the slide groove is provided with a slide block located on the upper end surface of the U-shaped insertion rod.

Preferably, a filter screen is provided inside the air-permeable dust-proof board, an activated carbon adsorption layer is provided inside the filter screen, and a plurality of evenly arranged air-ventilating holes are provided on the surface of the air-permeable dust-proof board.

Preferably, the lower end surface of the active filter is provided with an installation connection plate, and an installation hole is opened inside the installation connection plate.

Preferably, a cooling fan motor is provided on the lower end surface of the cooling fan, and a plurality of evenly arranged ventilation slots are provided on the surface of the cooling fan housing.

Preferably, one side of the L-shaped insertion rod is provided with an arc-shaped groove, and one end of the U-shaped insertion rod is provided with an arc-shaped groove.

Compared with the prior art, the beneficial effects of the utility model are:

In the utility model, by pressing the U-shaped plunger to one side, the U-shaped plunger moves to one side in the movable groove A, and at the same time, the spring A on one side is compressed, and the L-shaped plunger is also moved at the same time. Move to one side, so that the spring B on one side is also compressed, and then snap the breathable dust-proof plate with the cooling fan into the inside of the active filter, and after positioning and snapping, release the pulled U-shaped The insertion rod makes it pop out under the relaxation of spring A, and at the same time, the L-shaped insertion rod is also ejected by spring B under relaxation, so that the L-shaped insertion rod snaps into the slot B inside the connecting block on one side of the breathable dust-proof board for fixing , then the U-shaped inserting rod pops up and snaps into the slot A inside the L-shaped inserting rod to strengthen the fixation, and when it is fixed, the heat dissipation shells on both sides under the ventilating and dust-proof board are also snapped into the inside of the active filter, then snap When inserting, the hypotenuse at one end of the heat dissipation shell contacts and squeezes the trapezoidal blocks on both sides inside the active filter. After snapping in, the trapezoidal blocks snap into the trapezoidal slots on both sides of the heat dissipation shell for fixing. The installation of the cooling fan can be completed.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a schematic diagram of the overall internal structure of the utility model;

Fig. 3 is a schematic diagram of a partially enlarged structure of the overall A of the utility model;

Fig. 4 is a schematic diagram of a partially enlarged structure at the overall B place of the utility model;

In the figure: 1. Active filter; 2. Breathable dust-proof board; 3. Heat dissipation shell; 4. Heat dissipation fan; 5. Installation slot; 6. Connection block; 7. Fixed block; 8. Movable slot A; Spring A; 10, chute; 11, slider; 12, U-shaped insert rod; 13, movable slot B; 14, guide rod A; 15, guide block; 16, slot A; 17, slot B; 18 , L-shaped insertion rod; 19, guide rod B; 20, spring B; 21, trapezoidal slot; 22, spring slot; 23, spring C; 24, trapezoidal block.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Please refer to Fig. 1 to Fig. 4, an embodiment provided by the utility model: an anti-jamming active filter, comprising an active filter 1, a breathable dust-proof plate 2 is arranged above the inside of the active filter 1, Both sides of the active filter 1 are provided with guide rods B19, the outside of the guide rod B19 is provided with an L-shaped insertion rod 18, the inside of the L-shaped insertion rod 18 is provided with a slot A16, and one side of the L-shaped insertion rod 18 There is a spring B20 set outside the guide rod B19, a ventilating dustproof plate 2 is arranged above the active filter 1, connecting blocks 6 are arranged on both sides of the ventilating dustproof plate 2, and above the two connecting blocks 6 A fixed block 7 is provided, and the inside of the fixed block 7 is provided with a movable slot A8, and the inside of the movable slot A8 is provided with a U-shaped plunger 12, and the U-shaped plunger 12 is inserted into the slot A16, and the inside of the connecting block 6 is provided with a slot B17, the L-shaped inserting rod 18 is inserted into the slot B17, two spring slots 22 are provided on both sides of the inside of the active filter 1, a spring C23 is provided inside the spring slot 22, and a trapezoidal clip is provided on one side of the spring C23 Block 24, both sides of the lower end surface of the air-permeable dustproof plate 2 are provided with a heat dissipation shell 3, and the interior of one side of the heat dissipation shell 3 is provided with a trapezoidal slot 21, and the trapezoidal block 24 is inserted into the trapezoidal slot 21, and the heat dissipation shell 3 Inside is provided with cooling fan 4.

Further, the inside of the connecting block 6 is provided with a movable groove B13, the inside of the movable groove B13 is provided with a guide rod A14, and the outside of the guide rod A14 is provided with a guide block 15 located in the middle of the U-shaped insert rod 12.

Further, the inside of the fixed block 7 is provided with a sliding slot 10 , and the inside of the sliding slot 10 is provided with a sliding block 11 located on the upper end surface of the U-shaped insertion rod 12 .

Further, the inside of the air-permeable dust-proof board 2 is provided with a filter screen, the inside of the filter screen is provided with an activated carbon adsorption layer, and the surface of the air-permeable dust-proof board 2 is provided with a plurality of evenly arranged air holes.

Further, the lower end surface of the active filter 1 is provided with an installation connection plate, and an installation hole is opened inside the installation connection plate.

Further, the lower end surface of the cooling fan 4 is provided with a cooling fan motor, and the surface of the cooling case 3 is provided with a plurality of evenly arranged ventilation slots.

Further, one side of the L-shaped insertion rod 18 is provided with an arc-shaped groove, and one end of the U-shaped insertion rod 12 is provided with an arc-shaped groove.

When in use, by pressing the U-shaped plunger 12 to one side, the U-shaped plunger 12 moves to one side inside the movable groove A8, and at the same time the spring A9 on one side is compressed, and the L-shaped plunger is pushed back at the same time. The rod 18 also moves to one side, so that the spring B20 on one side is also compressed, and then the air-permeable dust-proof plate 2 with the cooling fan 4 is snapped into the inside of the active filter 1, and after positioning and snapping, loosen The pulled U-shaped inserting rod 12 makes it pop out under the relaxation of the spring A9, and at the same time, the L-shaped inserting rod 18 is also ejected by the spring B20 under the relaxation, so that the L-shaped inserting rod 18 snaps into the side of the breathable dust-proof plate 2 Fix it in the slot B17 inside the connection block 6, then the U-shaped inserting rod 12 pops up and inserts into the slot A16 inside the L-shaped inserting rod 18 to strengthen the fixation, and then the air-permeable dust-proof plate 2 lower sides on both sides are fixed at the same time. The heat dissipation housing 3 is also snapped into the inside of the active filter 1, and when it is snapped in, one end of the heat dissipation case 3 is in contact with the trapezoidal blocks 24 on both sides of the active filter 1, and the trapezoidal blocks 24 are pressed against each other. 24 snaps into the trapezoidal draw-in groove 21 inside that heat dissipation shell 3 both sides offer and fixes, and just can finish the installation to heat dissipation fan 4.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. An anti-interference active filter, including an active filter (1), characterized in that: a breathable dust-proof plate (2) is provided above the inside of the active filter (1), and the active Both sides of the filter (1) are provided with guide rods B (19), and the outside of the guide rod B (19) is provided with an L-shaped insert rod (18), and the inside of the L-shaped insert rod (18) There is a slot A (16), one side of the L-shaped insert rod (18) is provided with a spring B (20) sleeved on the outside of the guide rod B (19), and the active filter (1 ) is provided with a breathable dust-proof plate (2), both sides of the breathable dust-proof plate (2) are provided with connecting blocks (6), and above the two connecting blocks (6) are provided with a fixed block ( 7), the inside of the fixed block (7) is provided with a movable slot A (8), and the inside of the movable slot A (8) is provided with a U-shaped insertion rod (12), and the U-shaped insertion rod (12) Inserted into the slot A (16), the inside of the connection block (6) is provided with a slot B (17), the L-shaped insert rod (18) is inserted into the slot B (17), the Both sides of the active filter (1) are provided with two spring slots (22), the inside of the spring slot (22) is provided with a spring C (23), and one side of the spring C (23) A trapezoidal block (24) is provided, and both sides of the lower end surface of the air-permeable and dust-proof plate (2) are provided with a cooling fan housing (3), and a trapezoidal card slot is provided inside one side of the cooling fan housing (3) (21), the trapezoidal block (24) is snapped into the trapezoidal slot (21), and the cooling fan housing (3) is provided with a cooling fan (4). 2. An anti-interference active filter according to claim 1, characterized in that: the inside of the connecting block (6) is provided with a movable slot B (13), and the inside of the movable slot B (13) A guide rod A (14) is provided, and a guide block (15) located in the middle of the U-shaped insert rod (12) is sheathed on the outside of the guide rod A (14). 3. An anti-interference active filter according to claim 1, characterized in that: the inside of the fixed block (7) is provided with a chute (10), and the inside of the chute (10) is provided with The slide block (11) that is positioned at the upper end surface of the U-shaped plunger (12). 4. An anti-jamming active filter according to claim 1, characterized in that: the inside of the air-permeable dust-proof plate (2) is provided with a filter screen, and the inside of the filter screen is provided with an activated carbon adsorption layer, The surface of the air-permeable dust-proof board (2) is provided with a plurality of evenly arranged air-ventilating holes. 5. An anti-jamming active filter according to claim 1, characterized in that: the lower end surface of the active filter (1) is provided with a mounting connection plate, and the inside of the mounting connection plate is provided with a mounting plate hole. 6. An anti-jamming active filter according to claim 1, characterized in that: the lower end surface of the heat dissipation fan (4) is provided with a heat dissipation fan motor, and the surface of the heat dissipation fan housing (3) is provided with Multiple evenly arranged ventilation slots. 7. An anti-jamming active filter according to claim 1, characterized in that: one side of the L-shaped insertion rod (18) is provided with an arc-shaped groove, and the U-shaped insertion rod (12) One end is provided with an arc-shaped groove.

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