CN219919256U - PWM signal control panel with time delay function - Google Patents

Abstract

The utility model discloses a PWM signal control board with a time delay function, which comprises a control board body, wherein a contact switch is arranged at one end of the control board body, a limit seat is arranged beside the contact switch, a switch pressing plate is elastically and slidably arranged in the limit seat through a spring, an upper bulge is arranged in the middle of the upper side of the switch pressing plate, the upper bulge is slidably arranged through the limit seat, a stand is arranged at one side of the control board body outside the limit seat, a time delay roller is rotatably arranged on the stand through a connecting shaft, the switch pressing plate is elastically and slidably arranged in the limit seat beside the contact switch through the spring, the time delay roller is rotatably arranged on the stand outside the limit seat through the connecting shaft, one end of the connecting shaft is connected with a micro motor through a gear set, and the micro motor and the gear set are driven to be uniformly and slowly rotated to be regulated, so that the time delay roller can delay the upper bulge, thereby realizing the opening and closing treatment of a time delay control circuit board.

Description

PWM signal control panel with time delay function

Technical Field

The utility model relates to the technical field of control boards, in particular to a PWM signal control board with a time delay function.

Background

PWM is an abbreviation for pulse width modulation, which is to digitally encode the analog signal level by modulating the width of a series of pulses to equivalent a desired waveform, that is, by adjusting the change in duty cycle, that is, the change in signal, energy, etc., which means that the time the signal is at a high level in one cycle occupies a percentage of the entire signal cycle, for example, the duty cycle of a square wave is 50%, and the PWM signal needs to be controlled by a control board.

The utility model relates to an electric fan control board with a delay starting function, which belongs to the technical field of electric fans and has the technical field of electric fans, wherein the electric fan control board with the delay starting function in the prior art has the application number of CN202020332034.1 and comprises a control board main body.

Disclosure of Invention

The utility model aims to provide a PWM signal control board with a time delay function, which solves the problems of inconvenient control operation, common time delay effect, complex structure and inconvenient processing in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a PWM signal control panel with time delay function, includes the control panel body, contact switch is installed to control panel body one end, spacing seat is installed to contact switch side, spacing seat is inside to be equipped with the switch clamp plate through spring elastic sliding, switch clamp plate upside mid-mounting has the arch, and goes up protruding slip and run through spacing seat setting, the grudging post is installed to control panel body one side in the spacing seat outside, the grudging post is equipped with the time delay running roller through the connecting axle rotation, connecting axle one end is connected with micro motor through the gear train transmission.

Further, the spring is sleeved outside the contact switch, and the contact switch is clamped inside the limiting seat.

Furthermore, a limiting chute is formed in the limiting seat, limiting sliding blocks are mounted at two ends of the switch pressing plate, and the limiting sliding blocks are slidably arranged in the limiting chute.

Further, a sliding hole is formed in one end of the limiting seat, and the upper protrusion is arranged in a sliding penetrating mode through the sliding hole.

Further, a half cam is arranged on the outer side of the delay roller, and the outer diameter of the half cam is larger than that of the delay roller.

Further, the gear set comprises a driven gear arranged on the outer side of one end of the connecting shaft, one end of the micro motor is in transmission connection with a driving gear, and the driven gear is in meshed connection with the driving gear.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the switch pressing plate is arranged in the limit seat at the side of the contact switch in an elastic sliding way through the spring, the stand at the outer side of the limit seat is provided with the delay roller in a rotating way through the connecting shaft, one end of the connecting shaft is connected with the micro motor in a transmission way through the gear set, so that the connecting shaft is driven to slowly rotate and adjust at a constant speed through the micro motor and the gear set, the delay roller can delay and press the upper bulge, thereby realizing the opening and closing treatment of the delay control circuit board.

2. According to the utility model, the half cam is arranged on the outer side of the delay roller, and the outer diameter of the half cam is larger than that of the delay roller, so that when the half cam is rotationally pressed on the upper part of the upper bulge, the switch pressing plate can be downwards moved to touch the contact switch to realize the switch opening; when the half cam rotates to separate from the upper part of the upper bulge, the switch pressing plate moves upwards to separate from the touch switch under the action of the spring, so that the switch is closed, and continuous time-delay switching operation treatment can be realized by sequential circulation.

3. According to the utility model, the limiting sliding groove is formed in the limiting seat, the limiting sliding blocks are arranged at the two ends of the switch pressing plate, and are arranged in the limiting sliding groove in a sliding manner, so that the sliding guiding treatment is carried out during lifting adjustment of the switch pressing plate, and the accuracy of controlling the contact switch by the switch pressing plate is improved conveniently.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a front elevational view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a delay roller structure according to the present utility model;

fig. 3 is a schematic diagram of a switch pressing plate structure of the present utility model.

In the figure: 1. a control panel body; 2. a contact switch; 3. a spring; 4. a limit seat; 5. a switch pressing plate; 6. an upper protrusion; 7. a vertical frame; 8. a driven gear; 9. a connecting shaft; 10. a drive gear; 11. a micro motor; 12. a delay roller; 13. a half cam; 14. a limit sliding block; 15. limiting sliding grooves; 16. and a slide hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, in an embodiment of the present utility model, a PWM signal control board with a time delay function includes a control board body 1, a contact switch 2 is installed at one end of the control board body 1, a limit seat 4 is installed at the side of the contact switch 2, a switch pressing plate 5 is elastically slidably provided in the limit seat 4 through a spring 3 for pressing the contact switch 2 to control the opening and closing of the contact switch, an upper protrusion 6 is installed in the middle of the upper side of the switch pressing plate 5, the upper protrusion 6 is slidably disposed through the limit seat 4, a stand 7 is installed at one side of the control board body 1 outside the limit seat 4, a time delay roller 12 is rotatably provided on the stand 7 through a connection shaft 9, one end of the connection shaft 9 is connected with a micro motor 11 through a gear set, so that the micro motor 11 and the gear set drive connection shaft 9 are slowly rotated at a uniform speed, the time delay roller 12 can delay and press the upper protrusion 6, thereby realizing the opening and closing process of the time delay control circuit board, the control operation is convenient and fast, and the time delay effect is good.

Preferably, the spring 3 is sleeved outside the contact switch 2, and the contact switch 2 is clamped inside the limit seat 4, so that the stability of the elastic installation of the switch pressing plate 5 in the limit seat 4 is improved conveniently.

Preferably, the limit seat 4 is internally provided with a limit chute 15, two ends of the switch pressing plate 5 are provided with limit sliding blocks 14, and the limit sliding blocks 14 are slidably arranged in the limit chute 15 and are used for carrying out sliding guiding treatment when the switch pressing plate 5 is lifted and regulated, so that the accuracy of the switch pressing plate 5 for controlling the contact switch 2 is improved.

Preferably, the slide hole 16 has been seted up to spacing seat 4 one end, and goes up protruding 6 slip and run through slide hole 16 setting for carry out slip direction processing when going up protruding 6 lift adjustment, be convenient for further improve switch clamp plate 5 lift adjustment's stability.

Preferably, a half cam 13 is arranged at the outer side of the delay roller 12, and the outer diameter of the half cam 13 is larger than that of the delay roller 12, so that when the half cam 13 is rotationally pressed on the upper part of the upper bulge 6, the switch pressing plate 5 can be downwards moved to touch the contact switch 2 to realize the switch opening; when the half cam 13 rotates to be separated from the upper part of the upper bulge 6, the switch pressing plate 5 moves upwards to be separated from the touch switch 2 under the action of the spring 3, so that the switch is closed, and continuous time-delay opening and closing operation treatment can be realized by sequential circulation.

Preferably, the gear set comprises a driven gear 8 arranged outside one end of the connecting shaft 9, one end of the micro motor 11 is in transmission connection with a driving gear 10, and the driven gear 8 is in meshed connection with the driving gear 10, so that the connecting shaft 9 can be driven to rotate and adjust through the micro motor 11 and the reduction gear set, and the time delay can be controlled by controlling the rotating speed of the motor.

The working principle and the using flow of the utility model are as follows: the limiting seat 4 at the side of the contact switch 2 is internally provided with the switch pressing plate 5 through the elastic sliding of the spring 3, the stand 7 at the outer side of the limiting seat 4 is provided with the delay roller 12 through the rotation of the connecting shaft 9, one end of the connecting shaft 9 is connected with the micro motor 11 through the gear set transmission, the connecting shaft 9 is driven to rotate at a uniform speed and is regulated slowly through the micro motor 11 and the gear set, and the delay roller 12 can carry out delay pressing treatment on the upper bulge 6, so that the opening and closing treatment of a delay control circuit board is realized, the control operation is convenient and fast, and the delay effect is good.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The utility model provides a PWM signal control panel with time delay function, includes control panel body (1), its characterized in that: the utility model discloses a control panel, including control panel body (1), contact switch (2), spacing seat (4) are installed to contact switch (2) side, spacing seat (4) inside is equipped with switch clamp plate (5) through spring (3) elastic sliding, protruding (6) are installed to switch clamp plate (5) upside mid-mounting, and go up protruding (6) slip and run through spacing seat (4) setting, support (7) are installed to control panel body (1) one side in spacing seat (4) outside, support (7) are equipped with delay running roller (12) through connecting axle (9) rotation, connecting axle (9) one end is connected with micromotor (11) through the gear train transmission.

2. A PWM signal control board with delay function according to claim 1, wherein: the spring (3) is sleeved outside the contact switch (2), and the contact switch (2) is clamped inside the limit seat (4).

3. A PWM signal control board with delay function according to claim 1, wherein: limiting sliding grooves (15) are formed in the limiting seat (4), limiting sliding blocks (14) are mounted at two ends of the switch pressing plate (5), and the limiting sliding blocks (14) are arranged in the limiting sliding grooves (15) in a sliding mode.

4. A PWM signal control board with delay function according to claim 1, wherein: one end of the limiting seat (4) is provided with a sliding hole (16), and the upper bulge (6) is arranged in a sliding penetrating mode through the sliding hole (16).

5. A PWM signal control board with delay function according to claim 1, wherein: the outer side of the delay roller (12) is provided with a half cam (13), and the outer diameter of the half cam (13) is larger than that of the delay roller (12).

6. A PWM signal control board with delay function according to claim 1, wherein: the gear set comprises a driven gear (8) arranged outside one end of the connecting shaft (9), one end of the miniature motor (11) is in transmission connection with a driving gear (10), and the driven gear (8) is in meshed connection with the driving gear (10).