CN212741876U - Washing machine water level sensor integrated with tub collision switch - Google Patents

Abstract

The utility model discloses an integrated washing machine level sensor who hits bucket switch. The water level sensor comprises a water level sensing part, a barrel collision switch part and an integrated shell; the barrel striking switch part comprises a switch assembly and a striking rod for triggering the switch assembly to be switched on or off; the integrated shell comprises an upper cover and a shell which are mutually buckled, and the water level sensing part and the switch component are arranged in a cavity formed by mutually buckling the upper cover and the shell; the collision rod is movably connected and arranged on the integrated shell; the integrated shell is internally provided with a circuit board which is connected with the water level sensing part and the switch component, and the integrated shell is internally provided with a mounting bracket for mounting the circuit board. This level sensor hits bucket switch and level sensor's integral type device for the integration, and the structure is succinct, and spare part is small in quantity, and is multiple functional, simple to operate, and the space occupancy is little, and the pencil set is connected, and is efficient, with low costs.

Description

Washing machine water level sensor integrated with tub collision switch

Technical Field

The utility model relates to a washing machine level sensor technical field, concretely relates to integrated washing machine level sensor who hits a bucket switch.

Background

The water level sensor and the barrel collision switch are installed in the existing washing machine, the water level can be detected by the water level sensor in the use process of the washing machine, and the water level is subjected to feedback control through the control center, so that the utilization efficiency of water is improved, and the waste of water is reduced. Meanwhile, the tub collision switch can detect a tub collision signal and adjust the position of the inner tub through feedback of the control center so as to prevent the inner tub of the washing machine from colliding with the tub during swinging and protect the washing machine.

Because the water level sensor and the tub collision switch are independent signal input sources, the water level sensor and the tub collision switch of the existing washing machine are respectively separated and independently installed. The water level sensor and the barrel collision switch are assembled separately, the number of parts is large, the structure is complex, the space occupancy rate is large, the signal transmission wire harnesses of the two components are connected separately, the efficiency is low, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integrated washing machine level sensor who hits bucket switch to the defect or not enough that exist among the prior art. The water level sensor of the washing machine is an integrated device integrating a barrel collision switch and the water level sensor, and has the advantages of simple structure, small quantity of parts, complete functions, convenience in installation, small space occupancy rate, integrated connection of signal transmission wire harnesses in a control system, reduction of assembly procedures of the control system, high efficiency and low comprehensive cost.

The purpose of the utility model is realized through the following technical scheme.

A washing machine water level sensor integrated with a tub collision switch comprises a water level sensing part, a tub collision switch part and an integrated shell; the barrel striking switch part comprises a switch assembly and a striking rod for triggering the switch assembly to be switched on or off; the integrated shell comprises an upper cover and a shell which are mutually buckled, and the water level sensing part and the switch component are arranged in a cavity formed by mutually buckling the upper cover and the shell; the collision rod is movably connected and arranged on the integrated shell;

the integrated shell is internally provided with a circuit board which is connected with the water level sensing part and the switch component, and the integrated shell is internally provided with a mounting bracket for mounting the circuit board.

In a preferred embodiment, the water level sensing part includes a diaphragm, a piston plate, a magnetic core, and a coil;

the diaphragm, the piston plate and the magnetic core are arranged between the mounting bracket and the upper cover; the mounting bracket is buckled on the upper cover, and the edge of the diaphragm is pressed and fixed between the mounting bracket and the upper cover; the upper cover is provided with an air tap which is communicated to the space between the diaphragm and the upper cover; the piston sheet is connected with the middle part of the diaphragm, a magnetic core mounting column is arranged on one side of the piston sheet, which is far away from the diaphragm, and the magnetic core is fixedly sleeved on the magnetic core mounting column;

the mounting bracket is provided with a coil mounting column which protrudes downwards towards the shell, the coil is sleeved outside the coil mounting column, and the coil is connected with the circuit board; the middle of the coil mounting column is provided with a piston through hole which can accommodate a magnetic core fixedly sleeved on the magnetic core mounting column to extend downwards.

In a more preferred embodiment, the magnetic core mounting post has a pawl on an end thereof remote from the diaphragm; the magnetic core sleeve is arranged on the magnetic core mounting column and is clamped and fixed through the clamping jaws.

In a more preferable embodiment, a screw and a return spring I are arranged in the piston through hole; the screw is in threaded connection with one end of the piston through hole, which is far away from the diaphragm; one end of the reset spring I is connected and acts on the screw, and the other end of the reset spring I is connected and acts on the magnetic core mounting column.

In a preferred embodiment, the mounting bracket is provided with a circuit board mounting buckle; the circuit board passes through circuit installation buckle joint is installed on the installing support.

In a preferred embodiment, the switch assembly comprises a fixed plate, a movable plate, a pressing latch and a return spring II;

one ends of the fixed piece and the movable piece are welded on the circuit board, contacts are arranged at the other ends of the fixed piece and the movable piece, and the contacts on the fixed piece and the movable piece are mutually corresponding and abutted;

the pressing latch can move up and down freely and is arranged in a cavity between the mounting bracket and the shell, and one end of the pressing latch can extend out of the shell in a vertically telescopic manner; the striker is hinged outside the shell in a resettable manner, and is abutted against one end, extending out of the shell, of the pressing part;

one end of the return spring II is connected and acts on the pressing part, and the other end of the return spring II is connected and acts on the mounting bracket; and the pressing latch is provided with an abutting convex part abutting against the moving plate, and when the pressing latch moves downwards, the abutting convex part can drive the moving plate to separate from the fixed plate.

In a preferred embodiment, the switch component comprises a pin I, a pin II, a pressing latch and a return spring II;

one end of each of the pin I and the pin II is arranged on the pressing core and is mutually communicated; the other ends of the pin I and the pin II extend out of the pressing device and are upwards inserted on the circuit board;

the pressing latch can move up and down freely and is arranged in a cavity between the mounting bracket and the shell, and one end of the pressing latch can extend out of the shell in a vertically telescopic manner; the striker is hinged outside the shell in a resettable manner, and is abutted against one end, extending out of the shell, of the pressing part;

one end of the return spring II is connected and acts on the pressing part, and the other end of the return spring II is connected and acts on the mounting bracket.

In a more preferred embodiment, the mounting bracket is provided with a detent mounting slot; the pressing latch can be freely moved up and down and is arranged in the pressing latch mounting groove; and the reset spring II is positioned in the pressing and mounting slot position, one end of the reset spring is abutted against the pressing and the other end of the reset spring is abutted against the inner wall of the pressing and mounting slot position.

In a further preferred embodiment, a slot of the detent mounting slot is provided with a detent clamping portion, and the detent clamping portion can be mutually clamped with the other end of the detent extending out of one end of the shell.

In a further preferred embodiment, the side of the detent mounting slot is open, the detent is assembled into the detent mounting slot from the open side of the detent mounting slot, and a limit stop is detachably arranged on the open side of the detent mounting slot.

In a more preferred embodiment, a striker mounting position is provided on the outside of the housing; the collision rod comprises a hinged head part, and the hinged head part is movably arranged on the collision rod mounting position through a rivet; the rivet is sleeved with a torsion spring, and two ends of the torsion spring are respectively and operatively connected with the inner wall of the mounting position of the striker and the hinged head part of the striker;

one end of the hinged head part extends downwards to form a long rod handle, and the other end of the hinged head part extends to form a short arm; the short arm is abutted to one end of the pressing part, which extends out of the shell.

Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:

the utility model discloses a washing machine level sensor hits bucket switch and level sensor's integral type device for the integration, wherein hit bucket switch part and water level sensing part and use integrated casing to closely assemble as the carrier, overall structure is succinct, spare part is small in quantity, simple to operate, the space occupancy is little, it is multiple functional, hit bucket switch part and water level sensing part and all can realize independent work, and the signal transmission pencil set connection among the control system, control system assembly process reduces, high efficiency, and the comprehensive cost is low.

Drawings

Fig. 1 is a schematic view of the overall structure of a water level sensor of a washing machine integrated with a tub switch according to embodiment 1;

fig. 2 is an exploded schematic view of a water level sensor of a washing machine integrated with a barrel switch according to embodiment 1;

FIGS. 3a and 3b are schematic cross-sectional views in the cross-sectional direction and in the direction A-A in FIG. 1, respectively;

fig. 4a and 4b are schematic views of an assembly structure of the circuit board and the coil on the mounting bracket in embodiment 1;

FIGS. 5a and 5b are schematic views showing an assembly structure of the diaphragm, the piston plate, and the magnetic core in example 1;

FIGS. 6a and 6b are schematic views showing an assembly structure of a switch assembly part of the knock switch in the mounting bracket according to embodiment 1;

FIG. 7 is a schematic structural view of a pressing part in embodiment 1;

FIGS. 8a and 8b are schematic views showing an assembled structure of a plunger of the switch of embodiment 1 on a housing;

FIGS. 9a and 9b are schematic sectional views showing the structure of the ram switch of embodiment 1 in operation;

FIG. 10 is a schematic view showing the structure of the water level sensor according to embodiment 1 in use;

fig. 11 is an assembly structure diagram of a switch assembly part of the barrel striking switch in embodiment 2;

the attached drawings are marked as follows: 1-integrated housing, 11-upper cover, 111-air nozzle, 12-housing, 121-plunger mounting location, 2-water level sensing portion, 21-diaphragm, 22-piston plate, 221-magnetic core mounting post, 2211-claw, 23-magnetic core, 24-coil, 25-screw, 26-reset spring i, 3-barrel-impacting switch portion, 31-switch component, 311-stator plate, 3110-fixed contact, 312-movable plate, 3120-movable contact, 313-button, 3130-abutting convex portion, 314-reset spring ii, 315-pin i, 316-pin ii, 32-plunger, 321-hinged joint portion, 322-stem, 323-short arm, 4-circuit board, 5-mounting bracket, 51-coil mounting post, 510-piston through hole, 52-circuit board mounting rack, 520-circuit board mounting buckle, 53-clamping mounting groove, 530-clamping part, 6-limit stop, 7-rivet, 8-torsion spring, 100-water level sensor, 200-water bucket, 300-air storage chamber, 400-air guide pipe, 500-wiring harness and 600-upper cover panel.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the following specific embodiments and accompanying drawings, but the scope of protection and the implementation of the present invention are not limited thereto. In the description of the specific embodiments, it should be noted that the terms "upper" and "lower" are used for distinguishing the orientations and positional relationships based on the orientations and positional relationships shown in the drawings or the orientations and positional relationships that the products of the present invention are usually placed when using, and are only used for distinguishing the description, and are only used for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the structures or elements that are referred to must have specific orientations, be constructed and operated in specific orientations, and therefore, should not be interpreted as limiting the present invention, nor indicating or implying relative importance.

Example 1

Referring to fig. 1 to 3b, the water level sensor of the washing machine integrated with the bucket impacting switch of the present embodiment is an integrated device integrating the water level sensor and the bucket impacting switch, and is used for monitoring the water level of the water bucket in the washing machine and preventing the water bucket from colliding.

The washing machine water level sensor integrated with the tub-hitting switch comprises a water level sensing part 2, a tub-hitting switch part 3 and an integrated housing 1. The barrel striking switch part 3 comprises a switch assembly 31 and a striking rod 32 for triggering the switch assembly 31 to be switched on or switched off; the integrated housing 1 includes an upper cover 11 and a shell 12 that are fastened to each other. The water level sensing part 2 and the switch assembly 31 are both disposed in a cavity formed by the upper cover 11 and the housing 12 being fastened to each other, and the striker 32 is movably connected to the integrated housing 1.

A circuit board 4 connected with the water level sensing part 2 and the switch assembly 31 is arranged in the integrated shell 1, namely, the water level sensing part 2 and the switch assembly 31 share the circuit board 4, and at least a water level signal transmission line and a switch assembly 31 power supply line are arranged on the circuit board 4. Furthermore, a mounting bracket 5 for mounting the circuit board 4 is further disposed in the integrated housing 1, and the mounting bracket 5 separates the water level sensing part 2 and the switch assembly 31, so that the water level sensing part 2 and the switch assembly 31 operate independently.

Referring to fig. 5a and 5b, optionally, a circuit board mounting bracket 52 is provided on the mounting bracket 5, and a circuit board mounting clip 520 is provided on the circuit board mounting bracket 52. When the circuit board 4 is assembled, the circuit board 4 is clamped and fixedly installed on the installation support 5 through the circuit installation buckle 520.

In the present embodiment, the water level sensing part 2 includes a diaphragm 21, a piston plate 22, a magnetic core 23, and a coil 24.

Referring to fig. 5a and 5b, the diaphragm 21, the piston plate 22 and the magnetic core 23 are disposed between the mounting bracket 5 and the upper cover 11. Wherein, the periphery side of installing support 5 has the protruding muscle of joint, and the marginal inboard of upper cover 11 has the joint recess, and the protruding muscle of joint on the installing support 5 and the joint recess on the upper cover 11 correspond the adaptation each other, and installing support 5 is in through the protruding muscle of joint and the cooperation lock of joint recess on the upper cover 11, just the edge of diaphragm 21 is compressed tightly by installing support 5 and is fixed installing support 5 with between the upper cover 11. The upper cover 11 is provided with an air nozzle 111, and the air nozzle 111 is communicated with a space between the diaphragm 21 and the upper cover 11. Piston piece 22 with the middle part of diaphragm 21 is connected, just the deviating from of piston piece 22 have magnetic core erection column 221 on one side of diaphragm 21, magnetic core 23 fixed cover is established on magnetic core erection column 221.

Alternatively, a claw 2211 is provided on an end of the magnetic core mounting column 221 away from the diaphragm 21, the claw 2211 has elasticity capable of expanding and contracting in a radial direction of the magnetic core mounting column 221, and the claw 2211 has a slope gradually expanding in an insertion direction of the magnetic core 23. During the assembly of magnetic core 23, magnetic core 23 slides in to magnetic core erection column 221 through the inclined plane of jack catch 2211 on, makes magnetic core 23 cover establish on the magnetic core erection column 221, and pass through jack catch 2211 carries out reverse joint fixedly.

The mounting bracket 5 is provided with a coil mounting post 51 which protrudes downwards towards the shell 12, the coil 24 is sleeved outside the coil mounting post 51, and the coil 24 is connected with the circuit board 4; the middle of the coil mounting post 51 is opened with a piston through hole 510, which can accommodate the downward extension of the magnetic core 23 fixedly sleeved on the magnetic core mounting post 221. In the embodiment, the circuit board mounting bracket 52 is a plate-shaped structure integrally formed outside the coil mounting post 51, and the sleeving position of the coil 24 is located below the circuit board mounting bracket 52; the circuit board 4 is specifically a circuit board with an arc structure adapted to the shape of the coil 24, and is clamped and clamped on the radial outer side of the coil 24 by a circuit board mounting buckle 520 on the circuit board mounting frame 52, and the coil 24 is connected to the circuit board 4 through a lead wire led out.

In addition, a screw 25 and a return spring i 26 are provided in the piston through hole 510. One end of the piston through hole 510 far away from the diaphragm 21 is provided with internal threads, and the screw 25 is screwed in one end of the piston through hole 510 far away from the diaphragm 21; one end of the return spring I26 is connected to act on the screw 25, and the other end is connected to act on the magnetic core mounting column 221.

When the washing machine works, air pressure generated by rising of the water level of a water barrel in the washing machine is conducted through the air nozzle 111 to force the middle part of the membrane 21 to move downwards, and then the piston piece 22 is driven to move downwards; the piston plate 22 moves downwards to drive the magnetic core 23 to extend into the piston through hole 510, so that the coil 24 sleeved outside the coil mounting post 51 generates a magnetic induction signal and transmits the magnetic induction signal through the circuit board 4.

In the present embodiment, the switch assembly 31 includes a stator 311, a rotor 312, a pressing latch 313 and a return spring ii 314.

Referring to fig. 6a and 6b, one ends of the stator piece 311 and the moving piece 312 are soldered to the circuit board 4 and are electrically connected through the circuit board 4, and the other ends of the stator piece 311 and the moving piece 312 are provided with contacts (3110, 3120), and the contacts (3110, 3120) of the stator piece 311 and the moving piece 312 are in contact with each other in a corresponding manner. The pressing latch 313 can be freely moved up and down and is arranged in a cavity between the mounting bracket 5 and the shell 12, and one end of the pressing latch 313 can extend out of the shell 12 in a vertically telescopic manner; the striker 32 is pivotably hinged to the housing 12, and the striker 32 abuts upward against one end of the pressing latch 313 extending to the housing 12.

And one end of the return spring II 314 is connected to act on the pressing latch 313, and the other end is connected to act on the mounting bracket 5. As shown in fig. 7, the pressing part 313 has an abutting protrusion 3130 abutting against the moving plate 312, and during the downward movement of the pressing part 313, the abutting protrusion 3130 may drive the moving plate 312 and the fixed plate 311 to separate from each other, so that the contacts (3110, 3120) of the fixed plate 311 and the moving plate 312 are disconnected from each other.

In operation, in a normal state, the return spring ii 314 elastically expands and pushes the pressing portion 313 downward, and the pressing portion 313 is kept stationary due to the contact of the striker 32, so that the pressing portion 313 cannot move downward, the fixed plate 311 and the movable plate 312 are kept in contact, and the switch assembly 31 is turned on. When the plunger 32 rotates in the direction away from the pressing portion 313 under the action of the external force, the plunger 32 will not press the pressing portion 313 upward, the pressing portion 313 will move downward under the elastic action of the return spring ii 314, and the pressing protrusion 3130 drives the moving piece 312 to separate from the stator piece 311 during the moving process, so that the switch assembly 31 is in the off state. When the external force acting on the plunger 32 is removed, the plunger 32 will again abut upward against the catch 313 and turn on the switch assembly 31 again.

In this embodiment, the mounting bracket 5 has a detent mounting slot 53, and the detent mounting slot 53 is integrally disposed on the circuit board mounting bracket 52. The pressing latch 313 is arranged in the pressing latch mounting groove 53 in a vertically movable manner, so that the up-and-down movement stroke of the pressing latch 313 is accurate, and the on-and-off state of the movable piece 312 and the fixed piece 311 is effectively controlled; the return spring II 314 is positioned in the detent mounting slot 53, one end of the return spring II abuts against the detent 313, and the other end of the return spring II abuts against the inner wall of the detent mounting slot 53.

Furthermore, as seen in fig. 7, the end of the catch 313 remote from the protruding end has a step-like shape with a larger diameter than the catch body. Correspondingly, be provided with according to sincere joint portion 530 according to the notch of sincere installation trench 53, according to sincere joint portion 530 be with the convex part of step form adaptation, according to sincere joint portion 530 can with according to on the other end of sincere 313 the mutual joint of step form makes according to the stroke of reciprocating of sincere 313 can remain throughout according to sincere installation trench 530 in, avoids according to sincere 313 falling out, further ensures the effective control to switch on and the off-state of moving plate 312 and stator 311. Further, when assembling according to sincere 313 of adaptation, according to the side of sincere installation trench 53 open, according to sincere 313 follow according to the side of opening of sincere installation trench 53 the assembly go into according to sincere installation trench 53 in, just according to the side detachable of opening of sincere installation trench 53 be provided with limit stop 6, limit stop 6 makes according to sincere 313 stable mounting according to sincere installation trench 53 in.

Referring to fig. 8a and 8b, a striker mounting site 121 is provided on the exterior of the housing 12 for mounting a striker 32. Wherein, the mounting position 121 of the striker is a slot position with two side walls; the striking rod 32 comprises an articulated head part 321, the articulated head part 321 is movably arranged on the striking rod mounting position 121 through a rivet 7, and the articulated head part 321 can rotate around the rivet 7 along the radial direction of the washing machine water barrel. And the rivet 7 is sleeved with a torsion spring 8, and the two ends of the torsion spring 8 are respectively connected with the inner wall of the striking rod installation position 121 and the hinge joint head 321 of the striking rod 32 in an acting manner, and the hinge joint head 321 can be reset through elastic action after the hinge joint head 321 rotates.

Specifically, one end of the hinged head 321 extends downwards to form a long rod handle 322, and the other end of the hinged head 321 extends to form a short arm 323; the short arm 323 abuts one end of the catch 313 that extends out to the housing 12.

Referring to fig. 9a and 9b, in a normal state, due to the elastic action of the torsion spring 8, the short arm 323 of the striker 32 is always kept in contact with the detent 313, so that the detent 313 cannot move downward, the fixed piece 311 and the movable piece 312 are kept in a contact state, and the switch assembly 31 is conducted. When the lever 322 of the striking rod 32 is acted by an external force outward along the radial direction of the washing machine water barrel, the lever 322 drives the hinged head 321 to rotate outward around the rivet 7, and the short arm 323 removes the abutting and pressing action on the pressing pawl 313, so that the pressing pawl 313 moves downward under the elastic action of the return spring II 314, and the abutting convex part 3130 drives the movable piece 312 to separate from the fixed piece 311 in the moving process, so that the switch assembly 31 is in an off state.

Referring to fig. 10, in use, the washing machine water level sensor 100 is mounted to an inner surface of a washing machine upper cover panel 600 through a snap. Wherein, in a normal state, the switch component 31 of the barrel-hitting switch part 3 is conducted; and when the washing machine tub 200 swings and hits the lever handle 322 of the striking rod 32, the switch assembly 31 is turned off; the switch assembly 31 is switched on and off, the circuit board 4 outputs a barrel collision signal to the control center MCU through the wiring harness 500, and the control center MCU receives the barrel collision signal to control the action of the water barrel 200. The air pressure of the air storage chamber 300 is conducted to the air tap 111 of the water level sensing part 2 through the air duct 400, so that the middle part of the membrane 21 is forced to move downwards, and the piston plate 22 is driven to move downwards; the piston sheet 22 moves downwards to drive the magnetic core 23 to extend into the piston through hole 510, so that the coil 24 sleeved outside the coil mounting post 51 is subjected to electromagnetic conversion to generate a magnetic induction signal, a corresponding frequency is output through the circuit board 4, a water level signal is output to the control center MCU through the wiring harness 500, and the control center MCU judges the water level of the water bucket according to the received water level signal and further controls the next action.

Example 2

In this embodiment, compared with embodiment 1, further, referring to fig. 11, the switch assembly 31 includes a pin i 315, a pin ii 316, a catch 313 and a return spring ii 314.

One end of each of the pin I315 and the pin II 316 is arranged on the pressing part 313 and is conducted with each other; the other ends of the pin I315 and the pin II 316 extend out of the pressing part 313 and are plugged onto the circuit board 4.

The pressing latch 313 is disposed in a cavity between the mounting bracket 5 and the housing 12 and is capable of moving up and down, and one end of the pressing latch 313 extends out of the housing 12 in a vertically telescopic manner. The striker 32 is pivotably hinged to the housing 12 by a torsion spring 8, and the striker 32 abuts against one end of the pressing latch 313 extending to the housing 12. One end of the return spring II 314 is connected to act on the pressing latch 313, and the other end is connected to act on the mounting bracket 5.

During operation, in a normal state, the pin i 315 and the pin ii 316 on the pressing part 313 are inserted upwards onto the circuit board 4 under the upward abutting action of the striking rod 32, so that the switch assembly 31 is in a conducting state; when the plunger 32 is rotated outwards by an external force, the pressing latch 313 moves downwards under the elastic action of the return spring ii 314, so as to drive the pin i 315 and the pin ii 316 to be separated from the circuit board 4, and the switch assembly 31 is in an off state.

The above embodiments are merely preferred embodiments of the present invention, and only lie in further detailed description of the technical solutions of the present invention, but the protection scope and the implementation manner of the present invention are not limited thereto, and any changes, combinations, deletions, replacements, or modifications that do not depart from the spirit and principle of the present invention will be included in the protection scope of the present invention.

Claims (10)

1. A washing machine water level sensor integrated with a barrel collision switch is characterized by comprising a water level sensing part, a barrel collision switch part and an integrated shell; the barrel striking switch part comprises a switch assembly and a striking rod for triggering the switch assembly to be switched on or off; the integrated shell comprises an upper cover and a shell which are mutually buckled, and the water level sensing part and the switch component are arranged in a cavity formed by mutually buckling the upper cover and the shell; the collision rod is movably connected and arranged on the integrated shell;

the integrated shell is internally provided with a circuit board which is connected with the water level sensing part and the switch component, and the integrated shell is internally provided with a mounting bracket for mounting the circuit board.

2. The water level sensor of a washing machine integrated with a tub-hitting switch as claimed in claim 1, wherein the water level sensing part comprises a diaphragm, a piston plate, a magnetic core and a coil;

the diaphragm, the piston plate and the magnetic core are arranged between the mounting bracket and the upper cover; the mounting bracket is buckled on the upper cover, and the edge of the diaphragm is pressed and fixed between the mounting bracket and the upper cover; the upper cover is provided with an air tap which is communicated to the space between the diaphragm and the upper cover; the piston sheet is connected with the middle part of the diaphragm, a magnetic core mounting column is arranged on one side of the piston sheet, which is far away from the diaphragm, and the magnetic core is fixedly sleeved on the magnetic core mounting column;

the mounting bracket is provided with a coil mounting column which protrudes downwards towards the shell, the coil is sleeved outside the coil mounting column, and the coil is connected with the circuit board; the middle of the coil mounting column is provided with a piston through hole which can accommodate a magnetic core fixedly sleeved on the magnetic core mounting column to extend downwards.

3. The washing machine water level sensor integrated with a barrel collision switch as claimed in claim 2, wherein a screw and a return spring I are arranged in the piston through hole; the screw is in threaded connection with one end of the piston through hole, which is far away from the diaphragm; one end of the reset spring I is connected and acts on the screw, and the other end of the reset spring I is connected and acts on the magnetic core mounting column.

4. The water level sensor of a washing machine integrated with a barrel striking switch as claimed in claim 1, wherein the mounting bracket is provided with a circuit board mounting buckle; the circuit board passes through circuit installation buckle joint is installed on the installing support.

5. The washing machine water level sensor integrated with the tub collision switch as claimed in claim 1, wherein the switch assembly comprises a stator, a rotor, a pressing latch and a return spring II;

one ends of the fixed piece and the movable piece are welded on the circuit board, contacts are arranged at the other ends of the fixed piece and the movable piece, and the contacts on the fixed piece and the movable piece are mutually corresponding and abutted;

the pressing latch can move up and down freely and is arranged in a cavity between the mounting bracket and the shell, and one end of the pressing latch can extend out of the shell in a vertically telescopic manner; the striker is hinged outside the shell in a resettable manner, and is abutted against one end, extending out of the shell, of the pressing part;

one end of the return spring II is connected and acts on the pressing part, and the other end of the return spring II is connected and acts on the mounting bracket; and the pressing latch is provided with an abutting convex part abutting against the moving plate, and when the pressing latch moves downwards, the abutting convex part can drive the moving plate to separate from the fixed plate.

6. The washing machine water level sensor integrated with a collision barrel switch as claimed in claim 1, wherein the switch assembly comprises a pin I, a pin II, a pressing latch and a return spring II;

one end of each of the pin I and the pin II is arranged on the pressing core and is mutually communicated; the other ends of the pin I and the pin II extend out of the pressing device and are upwards inserted on the circuit board;

the pressing latch can move up and down freely and is arranged in a cavity between the mounting bracket and the shell, and one end of the pressing latch can extend out of the shell in a vertically telescopic manner; the striker is hinged outside the shell in a resettable manner, and is abutted against one end, extending out of the shell, of the pressing part;

one end of the return spring II is connected and acts on the pressing part, and the other end of the return spring II is connected and acts on the mounting bracket.

7. The washing machine water level sensor integrated with the tub hitting switch as claimed in claim 5 or 6, wherein the mounting bracket is provided with a detent mounting slot; the pressing latch can be freely moved up and down and is arranged in the pressing latch mounting groove; and the reset spring II is positioned in the pressing and mounting slot position, one end of the reset spring is abutted against the pressing and the other end of the reset spring is abutted against the inner wall of the pressing and mounting slot position.

8. The integrated washing machine water level sensor who hits bucket switch of claim 7, characterized in that, notch according to sincere installation trench is provided with according to sincere joint portion, according to sincere joint portion can with according to the stretching out of sincere the other end mutual joint that one end deviates from outside the shell.

9. The washing machine water level sensor integrated with a barrel collision switch as claimed in claim 8, wherein the side of the mounting slot is opened, the pressing part is assembled into the mounting slot from the opened side of the mounting slot, and a limit stop is detachably arranged on the opened side of the mounting slot.

10. The washing machine water level sensor integrated with a tub-collision switch as claimed in claim 5 or 6, wherein a collision bar mounting position is provided at an outside of the housing; the collision rod comprises a hinged head part, and the hinged head part is movably arranged on the collision rod mounting position through a rivet; the rivet is sleeved with a torsion spring, and two ends of the torsion spring are respectively and operatively connected with the inner wall of the mounting position of the striker and the hinged head part of the striker;

one end of the hinged head part extends downwards to form a long rod handle, and the other end of the hinged head part extends to form a short arm; the short arm is abutted to one end of the pressing part, which extends out of the shell.

Images