CN215817796U

CN215817796U - Electric push rod

Info

Publication number: CN215817796U
Application number: CN202121916480.8U
Authority: CN
Inventors: 赖志明; 张玉明; 赖浩华; 林金森
Original assignee: H Antech Asia Transmission Technology Co ltd
Current assignee: H Antech Asia Transmission Technology Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-02-11
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses an electric push rod which comprises a shell, a motor, a push rod, a gear set and a control device, wherein an inner cavity is formed in the shell, and the motor, the push rod, the gear set and the control device are respectively arranged in the inner cavity; the control device comprises a power supply shell, a power supply conversion module and a control panel, wherein the power supply shell is arranged on the shell, the power supply conversion module and the control panel are respectively arranged in the power supply shell, the input end of the power supply conversion module is used for accessing external alternating current, the power supply conversion module is used for converting the alternating current into direct current and then outputting the direct current to the control panel, and the output end of the control panel is electrically connected with the motor. The utility model relates to an electric push rod, which can convert alternating current into direct current by arranging a power supply conversion module, thereby avoiding the heating caused by the alternating current during working, ensuring that the push rod can maintain working for a long time and not stop working due to the heating.

Description

Electric push rod

Technical Field

The utility model relates to the field of electric push rods, in particular to an electric push rod.

Background

The electric push rod is an electric actuating mechanism and mainly comprises a push rod, a motor, a gear set and a control device, when the electric push rod works, power is provided for the motor through a power supply, the gear set is driven to rotate by the rotation of the motor, the push rod can further realize reciprocating motion, and therefore the switch work of a baffle, a gate, a valve and the like can be completed by a group of connecting rod mechanisms of the push rod.

However, the existing electric push rod is directly connected to the ac mains supply, and if the ac mains supply is connected, the electric push rod is easily heated, and then starts heating protection to stop working, so that the electric push rod is short in working time and cannot continuously work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide the electric push rod which can work for a long time and cannot stop working due to heating.

The purpose of the utility model is realized by the following technical scheme:

an electric putter comprising: the device comprises a shell, a motor, a push rod, a gear set and a control device, wherein the shell is provided with an inner cavity, and the motor, the push rod, the gear set and the control device are respectively arranged in the inner cavity;

the control device comprises a power supply shell, a power supply conversion module and a control panel, wherein the power supply shell is arranged on the shell, the power supply conversion module and the control panel are respectively arranged in the power supply shell, the input end of the power supply conversion module is used for accessing external alternating current, the power supply conversion module is used for converting the alternating current into direct current and then outputting the direct current to the control panel, and the output end of the control panel is electrically connected with the motor.

Preferably, the power conversion module includes a rectification input unit, a high-frequency voltage transformation unit, a PWM control unit and a rectification output unit, wherein an input end of the rectification input unit is used for accessing an alternating current, an output end of the rectification input unit is respectively electrically connected with the high-frequency voltage transformation unit and the PWM control unit, the PWM control unit is used for controlling voltage output of the high-frequency voltage transformation unit according to a PWM signal, an input end of the rectification output unit is electrically connected with an output end of the high-frequency voltage transformation unit, and an output end of the rectification output unit is electrically connected with the control board.

Preferably, the rectifying input unit includes a rectifying bridge BD1, a rectifying bridge BD2 and a capacitor EC1, input ends of the rectifying bridge BD1 and the rectifying bridge BD2 are used for connecting alternating current, an output end of the rectifying bridge BD1 is filtered by the capacitor EC1 and then electrically connected with the high-frequency voltage transforming unit and the PWM control unit, and an output end of the rectifying bridge BD2 is electrically connected with the high-frequency voltage transforming unit and the PWM control unit.

Preferably, the high-frequency transforming unit is a high-frequency transformer.

Preferably, the PWM control unit includes a control chip IC1 and a MOS transistor Q1, a power supply terminal of the control chip IC1 is electrically connected to the output terminal of the rectification input unit, a control terminal of the control chip IC1 is electrically connected to a G electrode of the MOS transistor Q1, a D electrode of the MOS transistor Q1 is electrically connected to the high-frequency transforming unit, and an S electrode of the MOS transistor Q1 is grounded.

Preferably, the rectification output unit includes a diode D5 and a capacitor EC3, an input end of the diode D5 is electrically connected to an output end of the high-frequency transforming unit, and an output end of the diode D5 inputs the transformed dc voltage to the control board through the capacitor EC 3.

Preferably, the power conversion module further includes a feedback unit, an input end of the feedback unit is used for connecting an output end of the rectification output unit, and an output end of the feedback unit is electrically connected to a feedback pin of the control chip IC 1.

Preferably, a partition board is arranged in the power supply shell and used for partitioning the power supply conversion module and the control panel.

Preferably, a first slide rail is arranged on the power supply shell, and the control board is mounted on the first slide rail.

Preferably, a second slide rail is arranged on the power supply shell, and the power supply conversion module is mounted on the second slide rail.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

the utility model relates to an electric push rod, which can convert alternating current into direct current by arranging a power supply conversion module, thereby avoiding the heating caused by the alternating current during working, ensuring that the push rod can maintain working for a long time and not stop working due to the heating.

Drawings

Fig. 1 is a schematic structural diagram of an electric putter according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of the electric putter of FIG. 1;

FIG. 3 is a schematic structural diagram of a control device of the electric putter shown in FIG. 1;

FIG. 4 is a functional block diagram of the power conversion module shown in FIG. 3;

FIG. 5 is a circuit diagram of the power conversion module shown in FIG. 4;

fig. 6 is a circuit diagram of the rectification output unit and the feedback unit shown in fig. 4.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 and 2, an electric putter includes: the device comprises a shell 100, a motor 200, a push rod 300, a gear set 400 and a control device 500, wherein an inner cavity 110 is formed in the shell 100, and the motor, the push rod, the gear set and the control device are respectively arranged in the inner cavity; it should be noted that the motor, the push rod, the gear set and the control device are all accommodated in the inner cavity, so that the housing can protect the above structures.

Referring to fig. 3, the control device 500 includes a power supply housing 510, a power supply conversion module 520 and a control board 530, the power supply housing is disposed on the housing, the power supply conversion module and the control board are respectively disposed in the power supply housing, an input end of the power supply conversion module is used for accessing external alternating current, the power supply conversion module is used for converting the alternating current into direct current and outputting the direct current to the control board, and an output end of the control board is electrically connected to the motor.

It should be noted that the power supply housing 510 is used for installing and protecting the power conversion module 520 and the control board 530, the power conversion module 520 is used for converting ac power into dc power, so as to avoid the situation that the ac power generates heat during operation, and the control board 530 is used for receiving the dc power of the power conversion module and then providing power and control for the motor.

So, through setting up power conversion module, can be direct current with alternating current conversion to can avoid because the alternating current produces heat at the during operation that brings, make the push rod can long-time maintenance work, can not be because produce heat and stop work.

Referring to fig. 4, the power conversion module includes a rectification input unit, a high-frequency voltage transformation unit, a PWM control unit and a rectification output unit, an input end of the rectification input unit is used for accessing ac power, an output end of the rectification input unit is electrically connected to the high-frequency voltage transformation unit and the PWM control unit, respectively, the PWM control unit is used for controlling voltage output of the high-frequency voltage transformation unit according to a PWM signal, an input end of the rectification output unit is electrically connected to an output end of the high-frequency voltage transformation unit, and an output end of the rectification output unit is electrically connected to the control board. The rectification input unit is used for rectifying and filtering alternating current, then inputting the alternating current into the high-frequency voltage transformation unit, and providing a necessary power supply for the PWM control unit; the high-frequency voltage transformation unit is used for adjusting the voltage according to the PWM control unit, and the rectification output unit is used for rectifying the voltage output by the transformer into direct current and filtering the voltage to realize stable output.

Referring to fig. 5, the rectifying input unit includes a rectifying bridge BD1, a rectifying bridge BD2 and a capacitor EC1, input ends of the rectifying bridge BD1 and the rectifying bridge BD2 are used for connecting with an alternating current, an output end of the rectifying bridge BD1 is filtered by the capacitor EC1 and then electrically connected with the high-frequency voltage transforming unit and the PWM control unit, and an output end of the rectifying bridge BD2 is electrically connected with the high-frequency voltage transforming unit and the PWM control unit. In this way, the rectifier bridge BD1, the rectifier bridge BD2 and the capacitor EC1 are provided, so that the rectifying and filtering functions can be realized.

Referring to fig. 5, the high frequency transforming unit is a high frequency transformer. Thus, in the present embodiment, the high frequency transformer is composed of T1-A, T1-B, T1-C, and functions to reduce voltage.

Referring to fig. 5, the PWM control unit includes a control chip IC1 and a MOS transistor Q1, a power supply terminal of the control chip IC1 is electrically connected to an output terminal of the rectification input unit, a control terminal of the control chip IC1 is electrically connected to a G pole of the MOS transistor Q1, a D pole of the MOS transistor Q1 is electrically connected to the high-frequency transforming unit, and an S pole of the MOS transistor Q1 is grounded. So, through setting up control chip and MOS pipe, can come the break-make of control MOS pipe according to the PWM signal, and then the output of control transformer.

Referring to fig. 6, the rectifying output unit includes a diode D5 and a capacitor EC3, an input terminal of the diode D5 is electrically connected to an output terminal of the high frequency transforming unit, and an output terminal of the diode D5 inputs the transformed dc voltage to the control board through the capacitor EC 3. In this embodiment, the diode D5 is composed of two parallel diodes, and plays a role of rectification, and the capacitor EC3 filters the rectified voltage.

When the circuit works, 220V alternating current is input through CON1-1, CON1-2 or CON1-1 and CON1-3, rectified through a rectifier bridge BD1 or a rectifier bridge BD2, filtered through a capacitor EC1 and supplied to a high-frequency transformer T1, a primary coil of the high-frequency transformer controls the switching frequency of an MOS (metal oxide semiconductor) tube Q1 through PWM (pulse-width modulation) of a control chip IC1, and secondary output is rectified through a diode D5 and filtered through a capacitor EC3 to achieve direct current voltage required by circuit work.

Referring to fig. 6, the power conversion module further includes a feedback unit, an input end of the feedback unit is used for connecting an output end of the rectification output unit, and an output end of the feedback unit is electrically connected to a feedback pin of the control chip IC 1. In this embodiment, the feedback unit is composed of a chip IC2 and a chip IC3, the output voltage is fed back to the control chip IC1 through the IC2 and the IC3, and the PWM pulse is adjusted in real time to ensure the stability of the output voltage.

Specifically, referring to FIG. 5, in the present embodiment, the connectors AC-L1 and AC-L are used as indication signals to detect the 220V input through three ports CON3-1, CON3-2 and CON3-3, wherein the input is from CON1-1 and CON1-2, or from CON1-1 and CON 1-3. The detection signal is output and used as a control signal of a rear control panel.

Referring to fig. 3, a partition 540 is disposed in the power supply housing, and the partition is used for separating the power conversion module from the control board. Thus, by arranging the partition 540, the power conversion module and the control panel can be separated, and the interference can be avoided.

Still need to explain, be provided with first slide rail on the power casing, the control panel is installed on first slide rail. The power supply shell is provided with a second sliding rail, and the power supply conversion module is installed on the second sliding rail. So, through setting up first slide rail, can the easy to assemble control panel, through setting up the second slide rail, then easy to assemble power conversion module.

The above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electric putter, comprising: the device comprises a shell, a motor, a push rod, a gear set and a control device, wherein the shell is provided with an inner cavity, and the motor, the push rod, the gear set and the control device are respectively arranged in the inner cavity;

2. The electric putter of claim 1, wherein the power conversion module comprises a rectification input unit, a high frequency transformation unit, a PWM control unit, and a rectification output unit, an input end of the rectification input unit is used for inputting ac power, an output end of the rectification input unit is electrically connected to the high frequency transformation unit and the PWM control unit, respectively, the PWM control unit is used for controlling voltage output of the high frequency transformation unit according to a PWM signal, an input end of the rectification output unit is electrically connected to an output end of the high frequency transformation unit, and an output end of the rectification output unit is electrically connected to the control board.

3. The electric putter as claimed in claim 2, wherein the rectifying input unit comprises a rectifying bridge BD1, a rectifying bridge BD2 and a capacitor EC1, input terminals of the rectifying bridge BD1 and the rectifying bridge BD2 are used for connecting with alternating current, an output terminal of the rectifying bridge BD1 is filtered by the capacitor EC1 and then electrically connected with the high frequency transforming unit and the PWM control unit, and an output terminal of the rectifying bridge BD2 is electrically connected with the high frequency transforming unit and the PWM control unit.

4. The electromotive push rod according to claim 2, wherein the high-frequency transforming unit is a high-frequency transformer.

5. The electric putter as claimed in claim 2, wherein the PWM control unit comprises a control chip IC1 and a MOS transistor Q1, a power supply terminal of the control chip IC1 is electrically connected to the output terminal of the rectifying input unit, a control terminal of the control chip IC1 is electrically connected to a G electrode of the MOS transistor Q1, a D electrode of the MOS transistor Q1 is electrically connected to the high frequency transforming unit, and an S electrode of the MOS transistor Q1 is grounded.

6. The electric putter as claimed in claim 2, wherein the rectifying output unit includes a diode D5 and a capacitor EC3, an input terminal of the diode D5 is electrically connected to an output terminal of the high frequency transforming unit, and an output terminal of the diode D5 inputs the transformed dc voltage to the control board through the capacitor EC 3.

7. The electric putter of claim 5, wherein the power conversion module further comprises a feedback unit, an input terminal of the feedback unit is used for connecting an output terminal of the rectification output unit, and an output terminal of the feedback unit is electrically connected to a feedback pin of the control chip IC 1.

8. The power putter of claim 1, wherein a partition is disposed in the power housing and separates the power conversion module from the control board.

9. The power putter of claim 1, wherein the power housing is provided with a first sliding track, and the control board is mounted on the first sliding track.

10. The power putter of claim 9, wherein a second slide rail is disposed on the power housing, and the power conversion module is mounted on the second slide rail.