CN211357959U

CN211357959U - Water purifier with electric shock prevention function

Info

Publication number: CN211357959U
Application number: CN201922008297.7U
Authority: CN
Inventors: 杨克忠; 刘忠平
Original assignee: Kang Ligen Water Treatment Technology Shanghai Co ltd
Current assignee: Kang Ligen Water Treatment Technology Shanghai Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-08-28
Anticipated expiration: 2029-11-20

Abstract

The water purifier with the electric shock prevention function comprises a water purifier body, a stabilized voltage power supply, a storage battery, a permanent magnet, a reed switch and a control circuit; a permanent magnet is fixedly arranged in a groove at the rear side of a front panel of the water purifier body, and a reed switch is arranged in a groove at the front part of a shell of the water purifier body; the stabilized voltage supply, the storage battery and the control circuit are arranged in the element box and connected through leads. This is novel when carrying out filter core change or wash and to other parts maintain, can automatic disconnection after taking off the front panel between this internal consumer of water purifier and the 220V power, has reduced the risk that the user electrocuted. In use, if the water purifier body leaks electricity, the control circuit can automatically disconnect the power supply of the electric equipment in the water purifier body and give effective voice prompt to a user, so that electric shock accidents caused when the user takes down the front panel and contacts the front panel are prevented. This novel emergence that can effectively prevent the electric shock accident to product market competition has been improved.

Description

Water purifier with electric shock prevention function

Technical Field

The utility model relates to a water treatment facilities field, especially a water purifier with electric shock prevention function.

Background

The water purifier is water treatment equipment for deeply purifying water according to the use requirement of water. When the water purifier is used, the influence of harmful substances in water on human bodies can be reduced as much as possible, so that the water purifier is more and more widely applied. The structure of the water purifier is generally divided into a shell, a multi-stage filter element and the like, the multi-stage filter element of the water purifier needs to be cleaned or replaced in actual use, and particularly, the cleaning frequency is more frequent in places with poor water quality.

In order to achieve good silencing effect, beautiful product appearance and safe use, most of the filter elements are installed in the shell. Thus, when a user needs to clean or replace the filter element and perform maintenance on other components, the user needs to disassemble the outer cover of the shell to operate the filter element. In the prior art, in order to facilitate people to respectively clean or replace the internal multistage filter element and maintain other components, a water purifier with a multistage filter element disassembling and cleaning structure is adopted before a shell, in application, a user directly clamps a rear left part, a rear right part, an upper end clamping sheet, a lower end clamping sheet into a front left part, a lower end clamping sheet into a shell of the water purifier and takes off a front panel in the clamping ports of the upper end and the lower end (the area of the front panel is basically consistent with the area of a front opening of the shell of the water purifier, so that the user can conveniently disassemble and clean or replace the filter element in the water purifier before the shell of the water purifier and maintain other components, and after maintenance, the front panel clamping sheet is directly clamped into the clamping ports of the front upper end and the lower end of the shell, so that the connection of; because, need not connect through screw rod nut, it is more convenient to operate, has brought the facility for the user.

The current water purifier that carries out multistage filter core before following the casing and dismantle and wash the structure that adopts, because the structure is limited, can't pull down automatic outage behind the front panel at the user, like this when the user forgets the main switch of disconnection (or when forgetting to pull out the water purifier plug), directly carry out casing filter core dismantlement or installation, and when maintaining other parts, the water purifier will lead to the emergence of operator's electric shock accident if there is the electric leakage phenomenon, especially because moist in the water purifier, the electric leakage face that produces behind the electric leakage is more, the consequence of production is also more serious. Based on the above, it is particularly necessary to provide a water purifier which can automatically disconnect the main power supply after a user cleans the filter element or replaces and takes down the panel, thereby preventing electric shock accidents as much as possible.

Disclosure of Invention

In order to overcome the limitation of the existing water purifier due to the structure, when a user forgets to close the main power supply before cleaning the filter element, the front panel is directly opened to disassemble or assemble the filter element, and other parts are maintained, if the water purifier has the defect that electric shock accidents happen due to electric leakage, the utility model provides a permanent magnet is arranged in the middle of the rear side of the lower end of the front panel, a reed pipe is arranged in the middle of the front lower end of the shell of the water purifier body, after the front panel is combined with the shell, the magnetic force of the magnet can effectively act on the reed pipe to close the internal contact, and further under the action of related circuits, the electric equipment in the water purifier body can normally work by power, when the filter element is replaced or cleaned and other parts are maintained, the internal contact of the reed pipe can be opened after the front panel is taken off, even if the main power supply switch is forgotten to, the self-closing water purifier has the advantages that the power supply of the electric equipment in the water purifier body can be automatically closed, the risk of electric shock of a user is reduced, the power supply of the electric equipment in the water purifier body can be automatically disconnected when the water purifier body leaks electricity in normal use, the user is effectively prompted, and the water purifier with the electric shock prevention function, which can cause electric shock accidents when the user dismantles and takes down the front panel and contacts the front panel, is prevented.

The utility model provides a technical scheme that its technical problem adopted is:

the water purifier with the electric shock prevention function comprises a water purifier body, a stabilized voltage power supply, a storage battery, a permanent magnet and a reed switch, and is characterized by also comprising a control circuit; a permanent magnet is fixedly arranged in a groove at the rear side of a front panel of the water purifier body, a groove is arranged at the front part of a shell of the water purifier body, and a reed switch is fixedly arranged in the groove; the stabilized voltage power supply, the storage battery and the control circuit are arranged in an element box, and the element box is arranged in a shell of the water purifier body; the power output both ends and the battery of constant voltage power supply, control circuit's power input both ends are connected through the wire respectively, control circuit's control power input end and 220V alternating current power supply one utmost point are connected through the wire, control circuit's control power output end, the other utmost point of 220V alternating current power supply and the interior total power input both ends of water purifier body and constant voltage power supply's power input both ends are connected through the wire respectively, control circuit's the first way signal input end and the casing of water purifier body are connected through the wire, the battery positive pole and tongue tube one end are connected through the wire, the tongue tube other end and control circuit's the second way signal input end are connected through the wire.

Furthermore, the rear end of the permanent magnet and the rear end of the groove on the rear side of the front panel are transversely positioned on a plane, the front end of the reed pipe and the front end of the groove in the front of the water purifier body shell are transversely positioned on a plane, the static contact of the reed pipe is transversely and horizontally positioned at the front end of the groove, and the movable contact of the reed pipe is transversely and horizontally positioned at the rear end of the groove.

Further, the reed switch is a normally open contact type reed switch.

Further, the stabilized voltage supply is an alternating current to direct current switching power supply module.

Furthermore, after the front panel is connected with the front end of the shell, the magnetic acting force of the permanent magnet acts on the reed pipe, and two normally open contact ends inside the reed pipe are closed.

Furthermore, the control circuit comprises an optocoupler with the model number of 4N25, a resistor, a diode, a controllable silicon, a relay, an NPN triode and a buzzer, and the optocoupler, the resistor, the diode, the controllable silicon, the relay, the NPN triode and the buzzer are connected through a circuit board in a wiring way; one end of a first resistor is connected with the base electrode of an NPN triode, the collector electrode of the NPN triode is connected with the negative electrode power supply input end of a first relay, the normally open contact end of the first relay is connected with the control power supply input end of a fourth relay, one end of a second resistor is connected with the positive electrode of a light-emitting diode hidden in an optical coupler, the negative electrode of the light-emitting diode is connected with the positive electrode of the diode, the collector electrode of the photoelectric triode hidden in the optical coupler is connected with the positive electrode of a silicon controlled rectifier, the control power supply input end of the second relay and the positive electrode power supply input end of the first relay, the normally open contact end of the second relay is connected with the positive electrode power supply input end of the third relay and the fourth relay, the control power supply input end of the third relay is connected with the positive electrode power supply input end of a annunciator, the emitter electrode of the photoelectric triode hidden in the, the negative electrode of the controlled silicon is connected with the positive power input end of the second relay, and the negative power input ends of the NPN triode, the second relay, the third relay and the fourth relay are connected with the negative power input end of the sounder.

The utility model has the advantages that: the utility model discloses lower extreme rear side middle part at water purifier body front panel has permanent magnet, and the lower extreme middle part has the tongue tube before the casing of water purifier body, and after current panel and casing combine, the magnetic force of magnet can effectively act on the tongue tube, make its inside contact closed, and then under the control circuit effect, can put through between this internal consumer of water purifier and the 220V power automatically, and the water purifier body normally works with the electricity. When carrying out filter core change or washing and to other parts maintain, the reed switch internal contact can open a way after taking off the front panel, under the control circuit effect, can automatic disconnection this internal consumer of water purifier and 220V between the power, even if the user forgets to close main switch after taking off the front panel like this, owing to closed this internal consumer power of water purifier, reduced the risk that the user electrocuted from this. In the use at ordinary times, if the water purifier body takes place the electric leakage, when the casing of water purifier body is electrically conductive, this internal consumer power of water purifier also can automatic disconnection by control circuit to give the user effective voice prompt, prevent that the user from dismantling the emergence that leads to the electric shock accident when taking off the front panel, contacting the front panel. This novel emergence that can effectively prevent the electric shock accident to improved product market competition, based on the aforesaid, so this is novel to have good application prospect.

Drawings

The invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the water purifier body in a state of separating the front panel.

Fig. 3 is a circuit diagram of the present invention.

Detailed Description

As shown in fig. 1 and 2, the water purifier with electric shock prevention function comprises a water purifier body 1 with a structure for disassembling and cleaning a multistage filter element from the front of a shell, a stabilized voltage power supply 2, a storage battery 3, a permanent magnet 4, a reed pipe 5 and a control circuit 6; the middle part of the rear side of the lower end of a front panel 101 of the water purifier body is provided with an integrally formed rectangular groove 102, a strip-shaped permanent magnet 4 is connected in the groove 102 by glue, the middle part of the lower end of the front part of a shell 103 of the water purifier body is provided with an integrally formed rectangular groove 104, and a reed pipe 5 is transversely connected in the groove 104 by glue; the stabilized voltage supply 2, the storage battery 3 and the control circuit 6 are installed on a circuit board, the circuit board is installed in a waterproof element box 7, and the element box 7 is fixedly installed at the upper rear part in the shell 103 of the water purifier body through a screw nut.

As shown in figures 1 and 2, the rear end of the permanent magnet 4 and the rear end of the middle groove 102 at the rear side of the lower end of the front panel are transversely arranged on a plane, the front end of the reed switch 5 and the front end of the middle groove 104 at the front lower end of the water purifier body shell are transversely arranged on a plane, the fixed contact of the reed switch 5 is transversely and horizontally arranged at the front end of the groove 104, and the movable contact of the reed switch 5 is transversely and horizontally arranged at the rear end of the groove 104. After the front panel 101 and the front end of the shell 103 are connected, the magnetic force of the bar-shaped permanent magnet 4 acts on the reed pipe 5, and then under the magnetic force, two normally open contact ends inside the reed pipe 5 are closed.

The reed switch GH is a normally open contact reed switch of a glass shell, as shown in FIG. 3. The stabilized voltage supply D1 is an AC-DC switching power supply module finished product of a brand bridgefield, and has an input voltage of alternating current 220V and an output voltage of direct current 6V; the model of the storage battery G is 6V/5 Ah. The control circuit comprises an optocoupler D2 with the model number of 4N25, resistors R1, R2 and R3, a diode VD, a silicon controlled rectifier VS, a relay K, K1, K2 and K3, an NPN triode Q1 and a buzzer B, and the optocoupler D2, the resistors R1, the R2 and the resistor R3 are connected through circuit board wiring; one end of a first resistor R1 is connected with a base electrode of an NPN triode Q1, a collector electrode of the NPN triode Q1 is connected with a negative electrode power supply input end of a first relay K, a normally open contact end of the first relay K is connected with a control power supply input end of a fourth relay K3, one end of a second resistor R2 is connected with a positive electrode of a light emitting diode hidden in an optical coupler D2, a negative electrode of the light emitting diode is connected with a positive electrode of a diode VD, a collector electrode of a photoelectric triode hidden in the optical coupler D2 is connected with a positive electrode of a thyristor VS, a control power supply input end of the second relay K1 and a positive electrode power supply input end of the first relay K1, a normally open contact end of the second relay K1 is connected with a normally open contact end of a third relay K2, a positive electrode power supply input end of the fourth relay K3 and a control power supply input end of the third relay K2, a normally open contact end of the third relay K2 is connected with a positive electrode power supply input, the other end of the third resistor R3 is connected with a controlled silicon VS control electrode, the cathode of the controlled silicon VS is connected with the positive power supply input end of the second relay K1, and the negative power supply input ends of the NPN triode Q1 emitter, the second relay K1, the third relay K2 and the fourth relay K3 are connected with the negative power supply input end of the annunciator B. Pins 3 and 4 at the two ends of the power output of the regulated power supply D1, the two ends of the power input of the storage battery G, the two ends of the power input of the control circuit, the positive power input end of the relay K and the emitting electrode of the NPN triode Q1 are respectively connected through leads, the control circuit has relay K to control the power supply input end and 220V AC power supply, normally closed contact end of relay K3, normally closed contact end of the other end of the 220V AC power supply, main power supply input ends D3 in the water purifier body and power supply input ends 1 and 2 of regulated power supply D1, first signal input end resistor R2 and casing WK (metal casing) of the water purifier body, accumulator G positive pole and reed pipe GH connected via wires, and second signal input end resistor R1 connected via wires.

As shown in fig. 1, 2 and 3, the front panel 101 is not removed at ordinary times, and the upper and lower clamping pieces at the two ends of the rear side of the front panel 101 of the water purifier body 1 are respectively clamped into the upper and lower clamping pieces at the two ends of the front side of the shell 103, so that the front panel 101 and the shell 103 can be connected; after the front panel 101 and the front part of the housing 103 are connected, the magnetic force of the bar permanent magnet CT acts on the reed pipe GH, and then under the magnetic force, two normally open contact ends inside the reed pipe GH are closed. After the 220V alternating current power supply enters the two power input ends of the stabilized voltage power supply D1, under the action of an internal circuit of the stabilized voltage power supply D1, the 3 and 4 pins of the stabilized voltage power supply D1 can output stable 6V direct current power supply to enter the two power input ends of the storage battery G (lithium storage battery) to carry out floating charging on the lithium storage battery G, and therefore after the subsequent 220V power supply is disconnected, the control circuit can still work normally. The 6V direct current power supply output by the 3 and 4 pins of the storage battery G and the stabilized voltage power supply D1 enters the control circuit at the same time, and the control circuit is in an electrified working state. The power supply output by the positive electrode of the storage battery G enters one end of the reed switch GH, and when the front panel 101 is not detached normally, because the internal contact of the reed switch GH is closed, the positive electrode power supply of the storage battery G is subjected to voltage reduction and current limiting through the resistor R1 and enters the base electrode (higher than 0.7V) of the NPN triode Q1, and then the NPN triode Q1 is conducted, the collector electrode of the NPN triode Q1 outputs low level and enters the input end of the negative electrode power supply of the relay K; because the positive power supply input end of the relay K is connected with the positive electrode of the storage battery G, the relay K can be electrically attracted to close the control power supply input end and the normally open contact end of the relay K at the moment, and one pole of the 220V power supply can enter the control power supply input end of the relay K3 through the control power supply input end and the normally open contact end of the relay K; because the normally closed contact end of the relay K3, the other pole of the 220V alternating current power supply and the two ends D3 of the total power input in the water purifier body are respectively connected through the wires, when the front panel 101 is not detached at ordinary times, the two ends D3 of the total power input in the water purifier body can be normally electrified (and the power plug of the existing water purifier is inserted into the power socket), so that the water purifier body 1 has the same using effect and process as the existing water purifier and can be normally used.

As shown in fig. 1, 2 and 3, when a user directly opens the front panel 101 for filter element detachment or installation, and performs maintenance on other components, since the permanent magnet CT is separated from the reed pipe GH, two contacts inside the reed pipe GH are open, so that the base of the NPN triode Q1 can no longer obtain bias voltage from the positive pole of the battery G through the resistor R1 to be cut off, the collector thereof has no output, and the relay K is no longer pulled to open the control power input end and the normally open contact end thereof when losing power; because one pole (phase line) of the 220V alternating current power supply is connected with one end of two ends D3 of the main power input in the water purifier body through the relay K control power input end and the normally open contact end, the relay K3 control power input end and the normally closed contact end, at the moment, the phase line of two ends D3 of the main power input in the water purifier body is powered off, thus, even if a user forgets to turn off the main power switch (namely, does not turn off the power switch of the water purifier body or forgets to pull out the power plug of the water purifier body) after taking off the front panel 101, in order to obtain good anti-electric shock effect, one side of the phase line inlet end of the power plug of the water purifier body 1 can be marked with a marking pen, then one side of the phase line of the power socket is marked with a marking, when the power plug is inserted into the power socket, the two marking is aligned, and the communication, the phase line is cut off in the subsequent control circuit), and the control circuit turns off the phase line power supply at two ends D3 of the total power supply input in the water purifier body 1, so that the risk of electric shock of a user is reduced.

Shown in fig. 1, 2, 3, this is novel does not take place the electric leakage when water purifier body 1 uses, and the interior concealed emitting diode positive pole of opto-coupler D2 does not have the power input, the interior concealed phototriode projecting pole of opto-coupler does not have the output, and follow-up relay K1, K2, K3 do not all can get the electric actuation, and 1 total power input both ends D3 of purifier body are in normally and get the electric state, and water purifier body 1 can normally work. When the water purifier body 1 is in use and has electric leakage due to various reasons, after a phase line is communicated with a metal shell WK of the water purifier body, the leakage current can be subjected to voltage reduction and current limitation through a resistor R2 and enters an anode of a light emitting diode hidden in an optocoupler D2, a 220V power supply cathode enters a cathode of the light emitting diode through half-wave rectification of a diode VD, so that a circuit is formed, the light emitting diode hidden in the optocoupler D2 emits light, a light receiving surface of a phototriode hidden in the optocoupler D2 is illuminated, so that an emitter of the phototriode is conducted, high level is output, the high level is subjected to voltage reduction and current limitation through a resistor R3 and enters a silicon controlled rectifier VS control electrode, and then the; because the positive power input ends of the relays K2 and K3 are connected with the normally open contact end of the relay K1 (the negative power input end is connected with the negative electrode of the storage battery G), the relays K2 and K3 can be electrified and attracted successively at the moment; because one pole (phase line) of the 220V alternating current power supply is connected with one end of two ends D3 of the main power supply input in the water purifier body through the relay K control power supply input end and the normally open contact end, the relay K3 control power supply input end and the normally closed contact end, at the moment, after the relay K3 is electrified to attract the control power supply input end and the normally closed contact end to be opened, the phase line of the two ends D3 of the main power supply input in the water purifier body can be powered off, so that a user can replace or clean the filter element and maintain other components, before the front panel 101 is opened, the user can not get an electric shock when contacting the front panel 101, and the risk of the electric shock is; because the normally open contact end of the relay K2 is connected with the positive power input end of the buzzer B, the negative power input end of the buzzer B is connected with the negative electrode of the storage battery G, and the control power input end of the relay K2 is connected with the positive electrode of the storage battery G, the relay K2 is electrified to attract the control power input end and the normally open contact end to be closed, the buzzer B can be electrified to make a sound, a user is prompted to prompt that electric leakage occurs in the water purifier body, the water purifier body 1 is not contacted, and the power socket is taken down to ask a professional to maintain.

In fig. 3, resistances R1, R2, and R3 are 470K, 100K, and 1K, respectively; relays K, K1, K2, K3 are DC4123 type 6V relays; the VS model of the controlled silicon is MCR 100-6; the diode VD model is 1N 4004; the model of the NPN triode Q1 is 9013; the reed switch GH is a glass shell normally open contact type reed switch of a Yunhui brand. The buzzer B is an active continuous sound buzzer finished product of brand union.

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but rather can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The water purifier with the electric shock prevention function comprises a water purifier body, a stabilized voltage power supply, a storage battery, a permanent magnet and a reed switch, and is characterized by also comprising a control circuit; a permanent magnet is fixedly arranged in a groove at the rear side of a front panel of the water purifier body, a groove is arranged at the front part of a shell of the water purifier body, and a reed switch is fixedly arranged in the groove; the stabilized voltage power supply, the storage battery and the control circuit are arranged in an element box, and the element box is arranged in a shell of the water purifier body; the power output both ends and the battery of constant voltage power supply, control circuit's power input both ends are connected through the wire respectively, control circuit's control power input end and 220V alternating current power supply one utmost point are connected through the wire, control circuit's control power output end, the other utmost point of 220V alternating current power supply and the interior total power input both ends of water purifier body and constant voltage power supply's power input both ends are connected through the wire respectively, control circuit's the first way signal input end and the casing of water purifier body are connected through the wire, the battery positive pole and tongue tube one end are connected through the wire, the tongue tube other end and control circuit's the second way signal input end are connected through the wire.

2. The water purifier with the electric shock preventing function as claimed in claim 1, wherein the rear end of the permanent magnet and the rear end of the recess at the rear side of the front panel are horizontally in a plane, the front end of the reed switch and the front end of the recess at the front side of the water purifier body housing are horizontally in a plane, the stationary contact of the reed switch is horizontally positioned at the front end of the recess, and the movable contact of the reed switch is horizontally positioned at the rear end of the recess.

3. The water purifier with electric shock preventing function as claimed in claim 1, wherein the reed switch is a normally open contact type reed switch.

4. The water purifier with the electric shock prevention function according to claim 1, wherein the regulated power supply is an ac-to-dc switching power supply module.

5. The water purifier with the electric shock preventing function as claimed in claim 1, wherein after the front panel is connected with the front end of the housing, the magnetic force of the permanent magnet acts on the reed pipe, and two normally open contact ends inside the reed pipe are closed.

6. The water purifier with the electric shock prevention function as claimed in claim 1, wherein the control circuit comprises a model 4N25 optocoupler, a resistor, a diode, a thyristor, a relay, an NPN triode and a buzzer, which are connected with each other through a circuit board; one end of a first resistor is connected with the base electrode of an NPN triode, the collector electrode of the NPN triode is connected with the negative electrode power supply input end of a first relay, the normally open contact end of the first relay is connected with the control power supply input end of a fourth relay, one end of a second resistor is connected with the positive electrode of a light-emitting diode hidden in an optical coupler, the negative electrode of the light-emitting diode is connected with the positive electrode of the diode, the collector electrode of the photoelectric triode hidden in the optical coupler is connected with the positive electrode of a silicon controlled rectifier, the control power supply input end of the second relay and the positive electrode power supply input end of the first relay, the normally open contact end of the second relay is connected with the positive electrode power supply input end of the third relay and the fourth relay, the control power supply input end of the third relay is connected with the positive electrode power supply input end of a annunciator, the emitter electrode of the photoelectric triode hidden in the, the negative electrode of the controlled silicon is connected with the positive power input end of the second relay, and the negative power input ends of the NPN triode, the second relay, the third relay and the fourth relay are connected with the negative power input end of the sounder.