CN213483561U

CN213483561U - Low-voltage capacitor with protection monitoring devices

Info

Publication number: CN213483561U
Application number: CN202023076115.9U
Authority: CN
Inventors: 崔琼
Original assignee: Anhui Lianzhong Electric Technology Co ltd
Current assignee: Anhui Lianzhong Electric Technology Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-06-18
Anticipated expiration: 2030-12-18

Abstract

The utility model relates to a low-voltage capacitor, concretely relates to low-voltage capacitor with protection monitoring devices, including capacitor shell and mount pad, capacitor shell bottom is fixed with the connecting seat, be equipped with detachable connecting mechanism between mount pad and the connecting seat, capacitor shell internally fixed installs radiator fan, capacitor shell is equipped with air inlet mechanism, air-out mechanism, detachable connecting mechanism includes the recess of seting up on the mount pad and cooperating with the connecting seat, the promotion piece that is fixed in the recess inner wall, the box body relatively fixed in the mount pad lateral wall, relative sliding connection is in the first movable block, the second movable block of connecting seat inside, the push pedal that is fixed with the second movable block and stretches into the box body, the third movable block of sliding connection in the box body; the utility model provides a technical scheme can effectively overcome the inconvenient defect that installs dismantlement, the inside dust granule that falls into easily of heat dissipation in-process casing that prior art exists.

Description

Low-voltage capacitor with protection monitoring devices

Technical Field

The utility model relates to a low-voltage capacitor, concretely relates to low-voltage capacitor with protection monitoring devices.

Background

The low-voltage power capacitor is generally a power capacitor with a rated voltage of 400V-6 kV, is mainly used in power systems and electrical equipment, and has the functions of improving power factor so as to reduce electricity consumption, reducing load of the equipment, increasing service life of the equipment, and reducing line loss from a power supply end to a power consumption end. The common low-voltage power capacitors are single, and in some power systems, some low-voltage power capacitors are sometimes required to be combined and used in parallel.

The parallel capacitors may compensate or balance the inductive reactive power of the electrical device. When the capacitive reactive power QC is equal to the inductive reactive power QL, the grid transmits only the active power P. The capacitor body used in the industry at present does not need temperature protection because of no national standard, industry standard and design specification requirements.

In the invention patent with application publication number CN 108110733 a, a temperature protection device of a low-voltage power capacitor is disclosed, which comprises a capacitor, a three-phase capacitor is arranged in the capacitor, the temperature protection device comprises a temperature relay, the temperature relay is arranged at a compatible core B of the three-phase capacitor, and the temperature relay is connected to a capacitor contactor after being connected to a main terminal at the upper end of the capacitor; when the internal temperature of the capacitor exceeds the limit value of the preset temperature of the temperature relay, the temperature relay cuts off the capacitor contactor to enable the capacitor to quit working, so that the capacitor can be protected in time and cannot be burnt out due to overhigh temperature.

However, current low-voltage capacitor is installing, dismantles the during operation, and the operation is comparatively troublesome, has reduced operating personnel's work efficiency to at the heat dissipation in-process, air inlet, air-out department fall into the dust granule in the air easily, will cause the equipment short circuit when serious.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the above-mentioned shortcoming that prior art exists, the utility model provides a low-voltage capacitor with protection monitoring devices can effectively overcome the inconvenience that prior art exists and install the defect that dismantlement, heat dissipation in-process casing are inside to fall into dust particle easily.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a low-voltage capacitor with a protection monitoring device comprises a capacitor shell and a mounting seat, wherein a connecting seat is fixed at the bottom of the capacitor shell, a detachable connecting mechanism is arranged between the mounting seat and the connecting seat, a cooling fan is fixedly mounted in the capacitor shell, and an air inlet mechanism and an air outlet mechanism are arranged on the capacitor shell;

the detachable connecting mechanism comprises a groove, a pushing block, a box body, a first moving block, a second moving block, a push plate, a third moving block and a pressing block, wherein the groove is formed in the mounting seat and matched with the connecting seat, the pushing block is fixed on the inner wall of the groove, the box body is relatively fixed on the side wall of the mounting seat, the first moving block and the second moving block are relatively connected in a sliding manner, the push plate is fixed with the second moving block and extends into the box body, the third moving block is connected in the box body in a sliding manner, the pressing block is fixed with the third moving block through a connecting rod, a first spring is connected between the first moving block and the second moving block, a second spring is connected between the third moving block and the inner wall;

the air inlet mechanism comprises a first filter plate arranged at the top of the capacitor shell, a guide rod relatively fixed on the inner wall of the capacitor shell, a pull rod connected with the capacitor shell in a sliding manner, a moving plate fixed with the pull rod and connected with the guide rod in a sliding manner, and a third spring connected between the moving plate and the capacitor shell, wherein the end part of the pull rod is fixed with a mounting block, the mounting block is rotatably connected with a turntable, an inserting column is fixed on the turntable, and a socket matched with the inserting column is fixed on the first filter plate.

Preferably, the air outlet mechanism comprises an air outlet pipe communicated with the side wall of the capacitor shell, a second filter plate is fixed inside the air outlet pipe, the second filter plate is connected with the baffle through a fourth spring, and an air outlet hole is formed in the side wall of the air outlet pipe.

Preferably, the top of the capacitor shell is provided with a mounting hole matched with the first filter plate, and the inner wall of the mounting hole is provided with an annular convex edge used for blocking the first filter plate from moving downwards.

Preferably, a mounting frame is fixed at the position, opposite to the first filter plate, of the top in the capacitor shell, and a vent hole is formed in the mounting frame.

Preferably, the bottom of the connecting seat is provided with an opening matched with the pushing block, and a pushing inclined plane matched with each other is arranged between the pushing block and the first moving block.

Preferably, a first slide rail is fixed on the inner wall of the connecting seat, and a slide block fixed with a first moving block is connected to the first slide rail in a sliding manner.

Preferably, a second slide rail is fixed on the inner wall of the box body, and a sliding groove matched with the second slide rail is formed in the third moving block.

(III) advantageous effects

Compared with the prior art, the low-voltage capacitor with the protection monitoring device provided by the utility model can be very conveniently mounted and dismounted by means of the detachable mounting mechanism, the operation is simple, and the working efficiency of operators is effectively improved; the setting of first filter, second filter can effectively block outside dust granule and pass through inside air inlet department, the air-out department gets into capacitor case, prevents the condition of equipment short circuit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the air outlet pipe in fig. 1 according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a low-voltage capacitor with protection monitoring devices, as shown in fig. 1 and fig. 2, including capacitor case 1 and mount pad 2, capacitor case 1 bottom is fixed with connecting seat 3, is equipped with between mount pad 2 and the connecting seat 3 and can dismantle coupling mechanism, and the inside fixed mounting of capacitor case 1 has radiator fan 17, is equipped with air inlet mechanism, air-out mechanism on the capacitor case 1.

The detachable connecting mechanism comprises a groove which is formed in the mounting seat 2 and matched with the connecting seat 3, a pushing block 4 fixed on the inner wall of the groove, a box body 12 relatively fixed on the side wall of the mounting seat 2, a first moving block 7 and a second moving block 9 which are connected to the inside of the connecting seat 3 in a sliding mode, a push plate 10 which is fixed with the second moving block 9 and extends into the box body 12, a third moving block 14 connected to the inside of the box body 12 in a sliding mode, a pressing block 16 fixed with the third moving block 14 through a connecting rod, a first spring 8 is connected between the first moving block 7 and the second moving block 9, a second spring 15 is connected between the third moving block 14 and the inner wall of the box body 12, the outer end of the push plate 10 is provided with a sliding-out inclined plane, and a through hole 11.

An opening matched with the pushing block 4 is formed in the bottom of the connecting seat 3, and a pushing inclined plane matched with each other is arranged between the pushing block 4 and the first moving block 7.

A first slide rail 5 is fixed on the inner wall of the connecting seat 3, and a slide block 6 fixed with a first moving block 7 is connected on the first slide rail 5 in a sliding manner.

A second slide rail 13 is fixed on the inner wall of the box body 12, and a slide groove matched with the second slide rail 13 is formed in the third moving block 14.

When the capacitor needs to be disassembled and maintained, the pressing block 16 can be moved inwards against the elastic force of the second spring 15, and the pressing block 16 pushes the push plate 10 to move inwards. By utilizing the matching relation between the sliding-out inclined plane and the through hole 11, when the sliding-out inclined plane enters the through hole 11 for a certain distance, the capacitor shell 1 can be pulled upwards, and the capacitor shell 1 is separated from the mounting seat 2.

When the capacitor shell 1 needs to be installed, the opening at the bottom of the connecting seat 3 is aligned with the pushing block 4, and the connecting seat 3 is slowly placed into the groove on the installation seat 2. Under the action of gravity, the acting force between the pushing block 4 and the first moving block 7 enables the first moving block 7 and the second moving block 9 to move outwards, so that the pushing plate 10 can push the third moving block 14 to move outwards, and the pressing block 16 can extend out of the side wall of the box body 12 to complete installation.

It should be noted that, as shown in fig. 1, the capacitor case 1 cannot be taken out by directly pulling the capacitor case 1 upward, and since the slide-out inclined plane on the pushing plate 10 is too extended outward, the slide-out inclined plane needs to move a distance toward the inside of the through hole 11, so that the first spring 8 can be compressed by the acting force between the through hole 11 and the pushing plate 10, and the capacitor case 1 can be taken out.

In addition, a limiting block can be arranged at the end part of the first slide rail 5 to limit the stroke of the slide block 6 and place the slide block 6 to be separated from the first slide rail 5.

The air inlet mechanism is including locating the first filter 18 at condenser casing 1 top, the guide arm 21 of relatively fixed in condenser casing 1 inner wall, pull rod 22 with condenser casing 1 sliding connection, the movable plate 23 fixed with pull rod 22 and with guide arm 21 sliding connection, and connect in movable plate 23, the third spring 24 between condenser casing 1, pull rod 22 end fixing has the installation piece 25, rotate on the installation piece 25 and be connected with carousel 26, be fixed with on the carousel 26 and insert the post 27, be fixed with on the first filter 18 and insert post 27 complex socket 20.

The top of the capacitor shell 1 is provided with a mounting hole matched with the first filter plate 18, and the inner wall of the mounting hole is provided with an annular convex edge used for blocking the first filter plate 18 to move downwards.

When the heat dissipation fan 17 works, the airflow enters the interior of the capacitor housing 1 through the first filter plate 18, and then is blown out through the air outlet pipe 28, so that the heat dissipation of the interior of the capacitor housing 1 is completed.

The first filter plate 18 can prevent dust particles in the outside air from entering the inside of the capacitor case 1. When the first filter plate 18 needs to be cleaned, the elastic force of the third spring 24 can be overcome, the mounting block 25 is pulled upwards, the inserting column 27 is driven to be separated from the socket 20, the rotary disc 26 is rotated for a certain angle, the inserting column 27 is staggered with the socket 20, and the first filter plate 18 can be taken down for cleaning.

The capacitor shell 1 is fixed with a mounting frame 19 at the position opposite to the first filter plate 18, and the mounting frame 19 is provided with a vent hole. A desiccant may be placed in the mounting frame 19 to reduce the humidity of the air entering the interior of the capacitor case 1.

The air outlet mechanism comprises an air outlet pipe 28 communicated with the side wall of the capacitor shell 1, a second filter plate 29 is fixed inside the air outlet pipe 28, the second filter plate 29 is connected with a baffle plate 31 through a fourth spring 30, and an air outlet hole 32 is formed in the side wall of the air outlet pipe 28.

When the heat dissipation fan 17 is operated, the airflow enters the interior of the capacitor case 1 through the first filter 18, so that the baffle 31 can be pushed to move upward against the elastic force of the fourth spring 30, and the air outlet 32 is exposed, and the airflow is blown out through the air outlet 32. When the heat dissipation fan 17 stops working, the baffle 31 returns to the original position under the elastic force of the fourth spring 30, and the foreign object is placed to enter the air outlet pipe 28 through the air outlet hole 32, and then enter the inside of the capacitor case 1.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a low-voltage capacitor with protection monitoring devices which characterized in that: the capacitor comprises a capacitor shell (1) and a mounting seat (2), wherein a connecting seat (3) is fixed at the bottom of the capacitor shell (1), a detachable connecting mechanism is arranged between the mounting seat (2) and the connecting seat (3), a heat radiation fan (17) is fixedly mounted in the capacitor shell (1), and an air inlet mechanism and an air outlet mechanism are arranged on the capacitor shell (1);

the detachable connecting mechanism comprises a groove which is formed in the mounting seat (2) and matched with the connecting seat (3), a pushing block (4) fixed on the inner wall of the groove, a box body (12) relatively fixed on the side wall of the mounting seat (2), a first moving block (7) and a second moving block (9) which are relatively slidably connected inside the connecting seat (3), a push plate (10) which is fixed with the second moving block (9) and extends into the box body (12), a third moving block (14) slidably connected inside the box body (12), and a pressing block (16) fixed with the third moving block (14) through a connecting rod, wherein a first spring (8) is connected between the first moving block (7) and the second moving block (9), a second spring (15) is connected between the third moving block (14) and the inner wall of the box body (12), a sliding-out inclined plane is arranged at the outer end of the push plate (10), and the push plate (10) are arranged on the mounting seat (, A through hole (11) matched with the inclined plane slides out;

the air inlet mechanism is including locating first filter (18) at condenser casing (1) top, relatively fixed in guide arm (21) of condenser casing (1) inner wall, with condenser casing (1) sliding connection's pull rod (22), fixed with pull rod (22) and with guide arm (21) sliding connection's movable plate (23) to and connect third spring (24) between movable plate (23), condenser casing (1), pull rod (22) end fixing has installation piece (25), it is connected with carousel (26) to rotate on installation piece (25), be fixed with on carousel (26) and insert post (27), be fixed with on first filter (18) and insert post (27) complex socket (20).

2. The low-voltage capacitor with protection monitoring device of claim 1, characterized in that: air-out mechanism includes air-out pipe (28) with condenser casing (1) lateral wall intercommunication, air-out pipe (28) inside is fixed with second filter (29), second filter (29) link to each other with baffle (31) through fourth spring (30), exhaust vent (32) have been seted up to air-out pipe (28) lateral wall.

3. The low-voltage capacitor with protection monitoring device of claim 1, characterized in that: capacitor case (1) top is seted up with first filter (18) complex mounting hole, the mounting hole inner wall is equipped with and is used for blockking the annular chimb of first filter (18) downstream.

4. A low voltage capacitor with protection monitoring device according to claim 3, characterized in that: the capacitor shell is characterized in that a mounting frame (19) is fixed at the position, opposite to the first filter plate (18), of the inner top of the capacitor shell (1), and ventilation holes are formed in the mounting frame (19).

5. The low-voltage capacitor with protection monitoring device of claim 1, characterized in that: the bottom of the connecting seat (3) is provided with an opening matched with the pushing block (4), and pushing inclined planes matched with each other are arranged between the pushing block (4) and the first moving block (7).

6. The low-voltage capacitor with protection monitoring device of claim 5, characterized in that: the inner wall of the connecting seat (3) is fixed with a first sliding rail (5), and the first sliding rail (5) is connected with a sliding block (6) fixed with a first moving block (7) in a sliding mode.

7. The low-voltage capacitor with protection monitoring device of claim 1, characterized in that: a second slide rail (13) is fixed on the inner wall of the box body (12), and a sliding groove matched with the second slide rail (13) is formed in the third moving block (14).