CN218335799U - Electricity saver for motor equipment - Google Patents

Abstract

The utility model discloses a power saver used on motor equipment, which belongs to the technical field of motor power saver accessories and comprises a swing arm; the swinging arm can freely penetrate through the heat dissipation port, and when the swinging arm swings towards the inner side direction of the shell, the baffle can shield the heat dissipation port; and the swinging driving part is used for driving the swinging arm to swing along a rotating fulcrum of the shell. Compared with the prior art, the beneficial effects of the utility model are that: through the swing of swing driving piece drive swing arm towards the outside direction swing of shell for the thermovent is kept away from to the baffle, and then has increased the air convection range of shell, has improved cooling radiating efficiency, through setting up thermistor, makes when the inside temperature of shell risees, thermistor's resistance value descends, and then makes heat dissipation fan current increase, and the fan power that dispels the heat thereupon increases, and then can increase the radiating efficiency of heat dissipation fan automatically.

Description

Electricity saver for motor equipment

Technical Field

The utility model relates to a motor electricity-saving appliance accessory technical field specifically is an electricity-saving appliance for on electrical equipment.

Background

The motor power saver is used for adjusting the output power of a motor so as to avoid the phenomena of no load and light load of the motor, and the searched Chinese patent number CN210007642U discloses the motor power saver, and relates to the technical field of electrical control. The motor electricity-saving appliance includes the shell, sets up a plurality of electric control module and the control circuit inside the shell, and electric control module includes: the device comprises a motor speed regulation control board, a three-phase rectification module, an inversion module, a drive board and a sampling circuit; the three-phase rectification module is connected with the inversion module and is connected to the motor speed regulation control board; the inversion module is used for converting the three-phase direct-current voltage into three-phase alternating-current voltage; the sampling circuit collects direct current voltage in the three-phase rectification module and output alternating current voltage and current of the inversion module and transmits the collected direct current voltage, output alternating current voltage and current to the motor speed regulation control board; the motor speed regulation control board controls the electric signal in the control circuit and regulates the output power of the motor; the driving plate is respectively connected with the motor speed regulation control plate and the inversion module.

Because multiple electrical components are usually installed inside the casing of the motor electricity-saving device, when the electrical components work for a long time, the heat generated inside can be continuously increased, and the heat dissipation is carried out through the heat dissipation fan in the traditional mode, but when the heat is rapidly increased in a short time, the heat dissipation efficiency of the traditional heat dissipation fan is lower, especially because the air convection range of the heat dissipation fan is smaller, the protection that the short-time rapid heating cannot be obviously satisfied by only depending on the traditional heat dissipation fan to dissipate heat.

To solve the above problems, we propose a power saver for an electric machine.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide an electricity-saving appliance for on electrical equipment, for solving the technical problem who mentions in the above-mentioned background art, the utility model provides a following technical scheme:

an electricity saver for an electric machine, comprising:

the swinging arm is hinged on the inner side wall of the shell of the power saver;

the swinging arm can freely penetrate through the heat dissipation port, and when swinging towards the inner side direction of the shell, the swinging arm can enable the baffle to shield the heat dissipation port;

and the swinging driving part is used for driving the swinging arm to swing along a rotating fulcrum of the shell.

In the above power saver for motor equipment, the housing is provided with the heat dissipation fan, and the heat dissipation fan is electrically connected with an external power supply through the thermistor.

In an electricity saver for an electric machine as above, the swing driving part comprises:

the ear block is fixedly connected to the inner wall of the shell;

the guide post is vertically and fixedly connected to the lug block;

the rack column is sleeved on the guide column and can freely slide up and down;

the gear is fixedly connected to the swinging arm and is coaxial with a rotating fulcrum of the swinging arm on the shell, and the gear is meshed with the outside of the rack column;

and the lifting mechanism is used for driving the rack column to vertically move.

In the above power saver for an electric machine, the lifting mechanism includes:

the electromagnet is fixedly connected to the lug block;

the fixing ring is fixedly connected to the upper end of the rack column and is matched with the electromagnet for use;

and the spring is sleeved on the guide post, and two ends of the spring in the elastic direction elastically abut against the fixing ring and the electromagnet respectively.

In the electricity-saving appliance used for the motor equipment, the guide post is horizontally provided with the short pin in a penetrating manner, the outer wall of the rack post is provided with the waist-shaped hole for the short pin to be inserted and combined, and the length direction of the waist-shaped hole is parallel to the length direction of the rack post.

Compared with the prior art, the beneficial effects of the utility model are that: through the swing of swing driving piece drive swing arm towards the outside direction swing of shell for the thermovent is kept away from to the baffle, and then has increased the air convection range of shell, has improved cooling radiating efficiency, through setting up thermistor, makes when the inside temperature of shell risees, thermistor's resistance value descends, and then makes heat dissipation fan current increase, and the fan power that dispels the heat thereupon increases, and then can increase the radiating efficiency of heat dissipation fan automatically.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of an assembly structure of the present invention;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of a portion of the structure shown at B in FIG. 1;

fig. 4 is a schematic diagram of the frame structure of the connection of the medium thermistor and the heat dissipation fan of the present invention.

In the figure: 1-shell, 2-rack column, 3-heat dissipation port, 4-baffle, 5-heat dissipation fan, 6-lug, 7-electromagnet, 8-spring, 9-guide column, 10-fixing ring, 11-gear, 12-kidney-shaped hole, 13-short pin, 14-swing arm and 15-thermistor.

Detailed Description

The preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.

Examples

As shown in fig. 1 to 4, the present embodiment provides a technical solution: an electricity-saving appliance used on motor equipment comprises a shell 1, an electrical control module and a control circuit, wherein the electrical control module comprises: the device comprises a motor speed regulation control board, a three-phase rectification module, an inversion module, a drive board and a sampling circuit; the three-phase rectification module is connected with the inversion module and is connected to the motor speed regulation control board; the inversion module is used for converting the three-phase direct-current voltage into three-phase alternating-current voltage; the sampling circuit collects the direct current voltage in the three-phase rectification module, the output alternating current voltage and the output alternating current of the inversion module and transmits the collected direct current voltage, the output alternating current voltage and the output alternating current to the motor speed regulation control board; the motor speed regulation control board controls the electric signal in the control circuit and regulates the output power of the motor; the driving board is respectively connected with the motor speed regulation control board and the inversion module, the heat dissipation fan 5 is installed on the shell 1, the heat dissipation fan 5 can be a product sold in the market at present, and is not limited herein, a PCB is electrically connected to a power line of the heat dissipation fan 5, a thermistor 15 is arranged on the PCB, an external power module is electrically connected with the PCB through a cable, so that the thermistor 15 is electrically connected between the power module and the heat dissipation fan 5, the thermistor can be set as a negative temperature coefficient thermistor, the resistance value of the negative temperature coefficient thermistor is reduced along with the rise of temperature, thus when the temperature in the shell rises, the current value led into the heat dissipation fan is increased, further the power of the heat dissipation fan is increased, the rotating speed of the heat dissipation fan is increased, and further, the rapid heat dissipation is realized;

because the heat dissipation of the heat dissipation fan is only relied on, the short-time rapid temperature rise in the shell can not be realized for rapid temperature reduction, in the embodiment, the auxiliary rapid temperature reduction is realized by increasing the ventilation area or the air convection range of the shell, specifically, in the embodiment, a heat dissipation port 3 is arranged on the shell 1, a hinged support is welded on the inner wall of the shell, an L-shaped swing arm 14 is rotatably connected on the hinged support through a hinge shaft, one end of the swing arm 14 is hinged with the hinged support, the other end of the swing arm penetrates through the heat dissipation port 3 and is welded with a baffle 4, the orthographic projection area of the baffle 4 is larger than the heat dissipation port, so that when the swing arm 14 swings towards the inner side of the shell 1, the baffle 4 can abut against the outer wall of the shell 1 and can seal the heat dissipation port to prevent dust in the shell 1, otherwise, when the swing arm 14 swings reversely, the baffle 4 can be far away from the heat dissipation port to increase the air convection in the shell 1, and the heat dissipation of the auxiliary heat dissipation fan is realized, so that the interior of the shell 1 is rapidly cooled;

since the baffle 4 cannot be operated by manpower in time when being opened, in this embodiment, an ear block 6 is welded on the inner wall of the housing 1, a guide post 9 extending downwards is welded on the ear block 6, in addition, a rack post 2 is sleeved on the guide post 9, a through hole for the guide post 9 to pass through freely is formed in the rack post 2, so that the rack post 2 can slide freely on the guide post 9, in addition, a gear 11 is welded on the outer side arm of the swing arm 14, the gear 11 is coaxial with the rotation fulcrum of the swing arm 14 on the housing 1, the gear 11 is meshed with the rack post 2, so that when the rack post 2 moves up and down, the gear 11 is driven to rotate, so as to drive the swing arm to rotate, in addition, an electromagnet 7 is welded on the ear block 6, a fixing ring 10 made of a magnetic conductive material is welded on the upper end of the rack post 2, the fixing ring 10 can be specifically made of any one of iron, cobalt and nickel, and therefore when the electromagnet is powered on, magnetism is generated, magnetic attraction force is generated on the fixing ring 10, the fixing ring 10 can be driven to move upwards, the swing arm rotates anticlockwise, the baffle plate 4 is driven to rotate and close the heat dissipation port 3, a spring 8 is sleeved on the guide post 9, two ends in the spring elasticity direction elastically abut against the electromagnet and the fixing ring respectively, magnetism is lost after the electromagnet is powered off, the spring is converted from a compression state to an extension state at the moment, the fixing ring is driven to move downwards, the rack post moves downwards, the gear is driven to rotate clockwise, the baffle plate rotates towards the outer side of the outer shell, the heat dissipation port is opened, and the air convection range of the outer shell is enlarged;

in addition, a short pin 13 horizontally penetrates through the guide column 9, a waist-shaped hole 12 for inserting the short pin 13 is formed in the outer wall of the rack column 2, the length direction of the waist-shaped hole 12 is parallel to the length direction of the rack column 2, and the rack column 2 cannot fall off from the guide column 9 by the short pin 13 sliding in the waist-shaped hole 12;

because the power on and off of the electromagnet needs manual operation, and the operation is not timely, in the embodiment, a temperature measuring sensor and a single chip microcomputer are installed in the shell, the temperature measuring sensor detects that the temperature inside the shell is too high and feeds a temperature signal back to the single chip microcomputer, the single chip microcomputer analyzes temperature data, when the temperature is larger than a preset temperature early warning threshold value of the single chip microcomputer, the single chip microcomputer is connected with an external relay circuit, after the relay circuit is connected, the electromagnet power supply is connected, the electromagnet is powered on, otherwise, after the relay circuit is connected, the electromagnet is in a circuit breaking state, the electromagnet loses magnetism, manual operation is not needed, and automatic operation is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. An electricity saver for an electric machine, comprising:

the swinging arm (14) is hinged to the inner side wall of the shell (1) of the power saver;

the baffle (4) is fixedly connected to one end, penetrating out of the shell (1), of the swinging arm (14), a heat dissipation opening (3) is formed in the side wall of the shell (1), the swinging arm (14) can freely penetrate out of the heat dissipation opening (3), and when the swinging arm (14) swings towards the inner side direction of the shell (1), the baffle (4) can shield the heat dissipation opening (3);

and the swinging driving part is used for driving the swinging arm (14) to swing along a rotating fulcrum of the shell (1).

2. The electricity saver for electric motor equipment according to claim 1, wherein the housing (1) is provided with a heat dissipation fan (5), and the heat dissipation fan (5) is electrically connected with an external power supply through a thermistor (15).

3. The power saver for an electric motor apparatus according to claim 1, wherein the swing drive member comprises:

the ear block (6) is fixedly connected to the inner wall of the shell (1);

the guide post (9) is vertically and fixedly connected to the ear block (6);

the rack column (2) is sleeved on the guide column (9) and can freely slide up and down;

the gear (11) is fixedly connected to the swing arm (14) and is coaxial with a rotating fulcrum of the swing arm (14) on the shell (1), and the gear (11) is meshed with the outside of the rack column (2);

and the lifting mechanism is used for driving the rack column (2) to vertically move.

4. An electricity saver for electric motor equipment according to claim 3 wherein the lifting mechanism comprises:

the electromagnet (7) is fixedly connected to the lug block (6);

the fixing ring (10) is fixedly connected to the upper end of the rack column (2) and is matched with the electromagnet (7) for use;

and the spring (8) is sleeved on the guide post (9), and two ends of the spring in the elastic direction respectively elastically abut against the fixing ring (10) and the electromagnet (7).

5. The electricity saver for motor equipment according to claim 3, characterized in that the guide post (9) is horizontally provided with a short pin (13), the outer wall of the rack post (2) is provided with a waist-shaped hole (12) for the short pin (13) to be inserted, and the length direction of the waist-shaped hole (12) is parallel to the length direction of the rack post (2).

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