CN212296637U

CN212296637U - Extinguisher based on MCU control

Info

Publication number: CN212296637U
Application number: CN202021892729.1U
Authority: CN
Inventors: 陈水云
Original assignee: Fujian Kaiyue Electronic Technology Co ltd
Current assignee: XIAMEN BEIKEJIA ELECTRONIC TECHNOLOGY Co.,Ltd.
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-01-05
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a extinguisher based on MCU control, it includes the shell, the circuit board, motor and pull rod, circuit board and motor are located in the shell, the back pole section of pull rod is located the shell, and link to each other with the output shaft of motor, be equipped with first setting element and the second setting element that links to each other with the circuit board respectively in the shell, first setting element and second setting element are elastic bolster, it locates the moving direction of pull rod respectively, through the rotation of motor and drive the pull rod forward movement and first setting element contact, backward movement and second setting element contact. The utility model discloses no longer adopt proximity switch, and the use has elastic bolster as the switch signal input, can reduce the pull rod widely and target in place momentary impact force, and it is impaired to reduce the pull rod screw thread, has prolonged the normal life of product.

Description

Extinguisher based on MCU control

Technical Field

The utility model relates to a fire extinguisher technical field, concretely relates to fire extinguisher based on MCU control.

Background

The extinguisher is a device for controlling the on-off of the oil circuit of a vehicle, which is generally divided into a solenoid valve type and a motor type, wherein the working principle of the motor type extinguisher is as follows: when the ignition switch is in an ON gear, the motor rotates forwards until the change-over switch is switched OFF, and when the ignition switch is in an OFF gear, the motor rotates backwards until the change-over switch is switched OFF.

Traditional extinguisher (like the electric extinguisher of authorizing bulletin date for CN205805739U, name fork truck engine), it is flameout that many adopt proximity switch cooperation to accomplish, in the pull rod arrival transient, the impact force to proximity switch and pull rod is great, makes the screw thread of pull rod impaired easily, has reduced the normal life of product.

In addition, the traditional extinguisher is many not locked up the commentaries on classics protection, if locked up the commentaries on classics appears in the use, and the motor can work all the time, and the current that will probably arouse like this rises, and whole current-carrying return circuit (including motor, relay, switch, PCB copper foil etc.) seriously generates heat to lead to the shell to melt, the steel wire sends out the heat red, finally leads to whole extinguisher to damage. Meanwhile, the traditional extinguisher has poor waterproof performance, and when the device is used in a humid or rain-drenched place, the device often fails due to water inflow.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a extinguisher based on MCU control, it can reduce the pull rod widely and target in place momentary impact force, and it is impaired to reduce the pull rod screw thread, has prolonged the normal life of product.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a extinguisher based on MCU control, includes shell, circuit board, motor and pull rod, circuit board and motor are located in the shell, the back pole section of pull rod is located in the shell, and with the output shaft of motor links to each other, be equipped with first setting element and second setting element that links to each other with the circuit board respectively in the shell, first setting element and second setting element are elastic bolster, and it is located respectively on the moving direction of pull rod, through the rotation of motor and drive the pull rod move forward with first setting element contact, move backward with the second setting element contact.

Preferably, the end of the rear rod section of the pull rod is bent downwards to form a positioning rod, the circuit board is provided with a mounting opening parallel to the pull rod, the first positioning piece and the second positioning piece are fixedly arranged in the mounting opening respectively, and the positioning rod is positioned in the mounting opening and positioned between the first positioning piece and the second positioning piece.

Preferably, a group of clamping grooves are formed in the inner side wall of the shell, the circuit board is embedded in the clamping grooves, a guide groove is formed in the inner bottom wall of the shell and is located right below the mounting opening in parallel, and the positioning rod extends into the guide groove.

Preferably, the first positioning piece and the second positioning piece are both springs and are respectively and oppositely arranged at the front end and the rear end of the mounting opening.

Preferably, be equipped with power, MCU control module, signal detection module, MOS pipe and relay on the circuit board, MCU control module links to each other with the power, signal detection module and MOS pipe respectively with MCU control module links to each other, first setting element and second setting element with signal detection module links to each other, the motor passes through the relay with the MOS pipe links to each other, signal detection module be used for detecting ignition switch signal with the pull rod signal that targets in place, so that MCU control module control MOS pipe and relay realize the just reversal of motor or get into the locked rotor protection.

Preferably, the shell comprises a shell body and a shell cover, the shell body is provided with an opening, the shell cover is fixed at the opening end of the shell body through a waterproof screw so as to seal the opening of the shell body, a sealing ring is arranged at the joint of the shell cover and the shell body, the shell cover is provided with a front sealing sleeve, the pull rod penetrates through the front sealing sleeve, the shell body is provided with a rear sealing sleeve, and the wire harness penetrates through the rear sealing sleeve.

Preferably, the casing is sunken to form a step portion to its middle part in the open end, be provided with a mounting panel in the step portion, the sealing washer is located between mounting panel and the cap, be provided with driven gear on the mounting panel with rotating, be connected with the driving gear on the spindle of motor, driven gear meshes with the driving gear mutually, the rear end of pull rod is passed behind the front seal cover with driven gear is connected.

After the technical scheme is adopted, compared with the background art, the utility model, have following advantage:

1. the utility model discloses no longer adopt proximity switch, and the use has elastic bolster as the switch signal input, can reduce the pull rod widely and target in place momentary impact force, and it is impaired to reduce the pull rod screw thread, has prolonged the normal life of product.

2. The utility model discloses a signal detection module detects ignition switch signal and pull rod signal that targets in place, makes MCU control module control MOS pipe and relay, realizes the positive and negative rotation of motor, and signal detection module begins the timing when state switches at every turn, does not detect the pull rod signal that targets in place when the settlement time (if in 3 seconds), then considers the stall to appear, and MCU control module control shutoff relay output gets into the stall protection, has improved the reliability of device.

3. The utility model discloses the pencil end of linking department, casing of drawing forth end, casing and cap at the pull rod has all increased seal structure, has improved the waterproof performance of device, can avoid arousing the device trouble because of intaking, further ensures the reliability of device.

Drawings

FIG. 1 is a perspective view of a first embodiment;

FIG. 2 is an exploded view of the first embodiment;

FIG. 3 is a sectional view of the first embodiment;

FIG. 4 is a schematic structural diagram of a housing according to a first embodiment;

FIG. 5 is a schematic block diagram of a first embodiment;

fig. 6 is an exploded view of the second embodiment.

Description of reference numerals:

the sealing device comprises a shell 110, a clamping groove 111, a guide groove 112, a step part 113, a shell cover 120, a waterproof screw 130, a sealing ring 140, a front sealing sleeve 150, a rear sealing sleeve 160, a mounting plate 170, a driven gear 180, a first gear 181 and a second gear 182;

the circuit board 200, the mounting port 210, the first positioning member 220, and the second positioning member 230;

a motor 300, a drive gear 310;

pull rod 400, locating lever 410.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the present invention, but do not indicate or imply that the device or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.

Example one

Cooperate fig. 1 to fig. 3 to show, the utility model discloses a extinguisher based on MCU control, including shell, circuit board 200, motor 300 and pull rod 400, in circuit board 200 and motor 300 located the shell, the back pole section of pull rod 400 was located the shell to link to each other with the output shaft of motor 300.

The first positioning element 220 and the second positioning element 230 connected to the circuit board 200 are disposed in the housing, the first positioning element 220 and the second positioning element 230 are both elastic buffer elements, which are disposed in the moving direction of the pull rod 400, respectively, and the pull rod 400 is driven by the rotation of the motor 300 to move forward to contact with the first positioning element 220 and move backward to contact with the second positioning element 230.

As shown in fig. 2 to fig. 4, an end of the rear rod section of the pull rod 400 is bent downward to form a positioning rod 410, the circuit board 200 is provided with a mounting opening 210 parallel to the pull rod 400, the first positioning element 220 and the second positioning element 230 are respectively fixed in the mounting opening 210, and the positioning rod 410 is located in the mounting opening 210 and located between the first positioning element 220 and the second positioning element 230. In this embodiment, the first positioning element 220 and the second positioning element 230 are both springs, and are disposed at the front end and the rear end of the mounting opening 210, respectively.

A group of clamping grooves 111 are formed in the inner side wall of the shell, the circuit board 200 is embedded in the clamping grooves 111, a guide groove 112 is formed in the inner bottom wall of the shell, the guide groove 112 is located right below the mounting opening 210 in parallel, and the positioning rod 410 extends into the guide groove 112.

Cooperate as shown in fig. 2-5, be equipped with the power on the circuit board 200, MCU control module, signal detection module, MOS pipe and relay, MCU control module links to each other with the power, the positive pole of power is connected with 5V voltage stabilizing module, signal detection module and MOS pipe link to each other with MCU control module respectively, first setting element 220 and second setting element 230 link to each other with signal detection module, motor 300 passes through the relay and links to each other with the MOS pipe, signal detection module is used for detecting ignition switch signal and pull rod 400 signal that targets in place, so that MCU control module control MOS pipe and relay, realize motor 300's just reversal or get into the locked rotor protection.

After the external power supply is input and passes through the surge protection circuit, the input is given to the 5V voltage stabilizing module, the stable 5V voltage of output is given MCU control module power supply and is detected ignition switch signal and pull rod signal that targets in place through the signal detection module to give MCU control module with signal transmission, MCU control module judges whether to drive the MOS pipe according to the signal of signal detection module, realizes that the motor is just reversing or gets into the locked-rotor protection. The specific control process is as follows:

the signal detection module detects that an ignition switch signal is at a high level (not flameout), a pull rod in-place signal 1 is at a high level (the pull rod is in contact with the first positioning piece), a pull rod in-place signal 2 is at a low level, and the motor rotates forwards; when the ignition switch signal is at high level, the pull rod in-place signal 1 is at low level, and the pull rod in-place signal 2 is at high level (the pull rod is in contact with the second positioning piece), the motor stops rotating, and flameout action is completed.

The signal detection module detects that the ignition switch signal is at a low level (flameout), the pull rod in-place signal 1 is at a low level, the pull rod in-place signal 2 is at a high level (the pull rod is in contact with the second positioning piece), and the motor rotates reversely; when the ignition switch signal is at low level, the pull rod in-place signal 1 is at high level (the pull rod is in contact with the first positioning piece), and the pull rod in-place signal 2 is at low level, the motor stops rotating, and the pull rod resetting action is completed.

The signal detection module starts timing when the motor starts to rotate, and when the pull rod in-place signal 1 and the pull rod in-place signal 2 are simultaneously high level for more than 3 seconds within set time (such as 3 seconds), the locked rotor is considered to be generated, the MCU control module controls the output of the turn-off relay, the motor stops rotating, and the locked rotor protection is achieved.

The shell includes casing 110 and cap 120, casing 110 has an opening, cap 120 is fixed in the open end of casing 110 through waterproof screw 130, with the opening of closed casing 110, the department that closes of cap 120 and casing 110 is provided with sealing washer 140, be equipped with preceding seal cover 150 on cap 120, pull rod 400 wears to locate in preceding seal cover 150, be equipped with back seal cover 160 on casing 110, the pencil wears to locate in back seal cover 160, in this embodiment, preceding seal cover 150 and the rubber seal cover that has waterproof function among the prior art can all be adopted to back seal cover 160. Through the design that the front sealing sleeve 150 is arranged at the leading-out end of the pull rod 400, the sealing ring 140 is arranged at the joint of the shell 110 and the shell cover 120, and the rear sealing sleeve 160 is arranged at the wire harness end of the shell 110, the waterproof performance of the device is improved through the sealing waterproof structures, the device fault caused by water inflow can be avoided, and the reliability of the device is ensured.

The casing 110 is recessed towards the middle thereof at an opening end to form a step part 113, a mounting plate 170 is disposed in the step part 113, the sealing ring 140 is disposed between the mounting plate 170 and the casing cover 120, a driven gear 180 is rotatably disposed on the mounting plate 170, a driving gear 310 is connected to a crankshaft of the motor 300, the driven gear 180 is engaged with the driving gear 310, and a rear end of the pull rod 400 passes through the front sealing sleeve 150 and then is connected with the driven gear 180.

In this embodiment, the driven gear 180 includes a first gear 181 and a second gear 182, the first gear 181 and the second gear 182 are respectively rotatably disposed on the mounting plate 170, the first gear 181 and the second gear 182 are engaged with each other, the first gear 181 is engaged with the driving gear 310, and the rear end of the pull rod 400 passes through the front sealing sleeve 150 and then is connected with the second gear 182.

Example two

As shown in fig. 3 and fig. 6, the present embodiment is different from the first embodiment in that:

the driven gear 180 that sets up on the mounting panel 170 is one, and the moment of motor output passes through driving gear 310 and driven gear 180 and directly exports on pull rod 400, and not only the part of required installation still less, can save the cost, can reduce the part complex fault rate moreover, improves the stability of product.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a extinguisher based on MCU control, includes shell, circuit board, motor and pull rod, circuit board and motor are located in the shell, the back pole section of pull rod is located in the shell, and with the output shaft of motor links to each other its characterized in that: be equipped with first setting element and the second setting element that links to each other with the circuit board respectively in the shell, first setting element and second setting element are elastic bolster, and it is located respectively on the moving direction of pull rod, through the rotation of motor and drive the pull rod move forward with first setting element contact, backward move with the second setting element contact.

2. The MCU control-based extinguisher of claim 1, wherein: the end part of the rear rod section of the pull rod is bent downwards to form a positioning rod, the circuit board is provided with a mounting opening parallel to the pull rod, the first positioning piece and the second positioning piece are fixedly arranged in the mounting opening respectively, and the positioning rod is positioned in the mounting opening and positioned between the first positioning piece and the second positioning piece.

3. The MCU control-based extinguisher of claim 2, wherein: the circuit board is embedded in the clamping groove, a guide groove is formed in the inner bottom wall of the shell, the guide groove is located under the mounting opening in parallel, and the positioning rod extends into the guide groove.

4. The MCU control-based extinguisher of claim 2, wherein: the first positioning piece and the second positioning piece are both springs and are respectively and oppositely arranged at the front end and the rear end of the mounting opening.

5. The MCU control-based extinguisher of claim 1, wherein: be equipped with power, MCU control module, signal detection module, MOS pipe and relay on the circuit board, MCU control module links to each other with the power, signal detection module and MOS pipe respectively with MCU control module links to each other, first setting element and second setting element with signal detection module links to each other, the motor passes through the relay with the MOS pipe links to each other, signal detection module be used for detecting ignition switch signal with the pull rod signal that targets in place, so that MCU control module control MOS pipe and relay realize the just reversal of motor or get into the locked rotor protection.

6. The MCU control-based extinguisher of claim 1, wherein: the shell comprises a shell body and a shell cover, wherein the shell body is provided with an opening, the shell cover is fixed at the opening end of the shell body through a waterproof screw so as to seal the opening of the shell body, a sealing ring is arranged at the cover closing position of the shell cover and the shell body, a front sealing sleeve is arranged on the shell cover, the pull rod penetrates through the front sealing sleeve, a rear sealing sleeve is arranged on the shell body, and the wire harness penetrates through the rear sealing sleeve.

7. The MCU control-based extinguisher of claim 6, wherein: the motor is characterized in that the shell is sunken from the open end to the middle to form a step part, a mounting plate is arranged in the step part, the sealing ring is arranged between the mounting plate and the shell cover, a driven gear is rotatably arranged on the mounting plate, a driving gear is connected to a crankshaft of the motor, the driven gear is meshed with the driving gear, and the rear end of the pull rod penetrates through the front sealing sleeve and then is connected with the driven gear.