CN211506693U - Leakage alarm for domestic electric appliance - Google Patents
Leakage alarm for domestic electric appliance Download PDFInfo
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- CN211506693U CN211506693U CN202020359278.9U CN202020359278U CN211506693U CN 211506693 U CN211506693 U CN 211506693U CN 202020359278 U CN202020359278 U CN 202020359278U CN 211506693 U CN211506693 U CN 211506693U
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- shell
- alarm
- electric leakage
- controller
- household appliance
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Abstract
The utility model provides a domestic appliance electric leakage alarm, a be used for the electric leakage monitoring to domestic appliance's metal casing, inhale fixed part and sucking disc through the magnetism and fix the casing back on metal casing, adjust the position of metal contact, make metal end and metal casing contact, when domestic appliance electric leakage makes metal casing electrified, leakage current can transmit on the conductive wire, the cover is established and is transmitted for the controller after the current transformer on the conductive wire responds to out the current signal, controller control alarm sends out the police dispatch newspaper, thereby can warn the user, avoid user contact metal casing and take place the electric shock accident, in addition, can realize the function of self-checking through the press button and the test wire that set up, whether be used for the test can monitor leakage current, guarantee electric leakage alarm's normal use.
Description
Technical Field
The utility model relates to an electric leakage detection technical field, in particular to domestic appliance electric leakage alarm.
Background
Along with the continuous improvement of living standard of people, various household appliances appear in families of people, including refrigerators, washing machines, televisions and the like, and the household appliances often have electric leakage phenomenon due to the properties of the household appliances, although the household appliances are grounded by a ground wire, the household appliances are often electrified on a metal shell, if people touch the shell carelessly, electric shock accidents can be caused, and then the human body is damaged.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a domestic appliance electric leakage alarm can fix on the domestic appliance shell, if the electric leakage phenomenon takes place, can send out the police dispatch newspaper in order to indicate the user, still possesses the self-checking function simultaneously, can detect whether electric leakage is reported to the police and can normally go on.
The technical scheme of the utility model is realized like this:
the household appliance leakage alarm comprises a shell, a leakage detection mechanism, a controller, an alarm and a self-checking mechanism, wherein a magnetic suction fixing part is arranged on the outer side surface of the shell, the alarm is arranged on the outer surface of the shell, and the controller is arranged in the shell; the leakage detection mechanism comprises a metal contact, a conductive wire and a current transformer, wherein the conductive wire and the current transformer are arranged in the shell; the self-checking mechanism comprises a press button, a battery pack and a test wire which form a circuit loop, the test wire is sleeved on the current transformer, and the press button is arranged on the outer surface of the shell; and the controller is respectively electrically connected with the current transformer and the alarm.
Preferably, the alarm comprises a buzzer and a warning lamp, and the controller is electrically connected with the buzzer and the warning lamp respectively.
Preferably, the device further comprises a wireless transmission unit, wherein the wireless transmission unit is arranged in the shell and electrically connected with the controller.
Preferably, still include the sucking disc, the sucking disc sets up the casing side surface at fixed part place is inhaled to magnetism.
Preferably, the metal contact includes body, metal end and flexible regulating part, the body is stretched out to the casing outside by casing inside, the metal end sets up the one end that is located the casing outside at the body, the body passes through flexible regulating part and casing swing joint, electrically conductive electric wire and metal end electric connection.
Preferably, the telescopic adjusting part comprises an adjusting spring and a stop block, the stop block is arranged on the outer surface of the pipe body positioned outside the shell, the adjusting spring is sleeved on the pipe body, one end of the adjusting spring is connected with the outer surface of the shell, and the other end of the adjusting spring is connected with the stop block.
Preferably, the telescopic adjusting part comprises an external thread arranged on the outer surface of the pipe body and an internal thread arranged on the side surface of the shell, and the pipe body is in threaded connection with the shell.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a household appliance electricity leakage alarm, which can fix a shell on a metal shell of the household appliance through a magnetic attraction fixing part, when the household appliance generates electric leakage, the generated leakage current can flow through the conductive wire through the metal contact, the current transformer arranged on the conductive wire senses a current signal and then sends the signal to the controller, the controller controls the alarm to give an alarm to prompt a user of the leakage condition and avoid electric shock caused by contact, meanwhile, the circuit loop where the test lead is positioned can be switched on by the arranged push button, so that the electric energy of the battery pack can be transmitted to the test lead, thereby current transformer can respond to current signal everywhere and send the controller, and the controller receives control alarm and sends the police dispatch newspaper behind the signal to realize test function, be used for testing whether the leakage alarm function is normal.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
Fig. 1 is a schematic structural view of a first embodiment of the household appliance electric leakage alarm of the present invention;
fig. 2 is a schematic circuit diagram of a first embodiment of the household appliance electric leakage alarm of the present invention;
fig. 3 is a schematic view of a connection structure between a tube and a housing of a second embodiment of the electric leakage alarm device for a household appliance of the present invention;
in the figure, 1 is a casing, 2 is a controller, 3 is a magnetic fixed part, 4 is a conductive wire, 5 is a current transformer, 6 is a press button, 7 is a battery pack, 8 is a test wire, 9 is a buzzer, 10 is a warning light, 11 is a wireless transmission unit, 12 is a sucker, 13 is a tube body, 14 is a metal end, 15 is an adjusting spring, 16 is a stopper, 17 is an external thread, and 18 is an internal thread.
Detailed Description
In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 2, the utility model provides a household appliance electric leakage alarm, including casing 1, electric leakage detection mechanism, controller 2, alarm and self-checking mechanism, the lateral surface of casing 1 is provided with magnetism and inhales fixed part 3, the alarm is arranged on the outer surface of casing 1, the controller 2 is arranged inside casing 1; the electric leakage detection mechanism comprises a metal contact, a conductive wire 4 and a current transformer 5, wherein the conductive wire 4 and the current transformer 5 are arranged in the shell 1, the metal contact is arranged on the side surface of the shell 1, the conductive wire 4 is electrically connected with the metal contact, and the current transformer 5 is sleeved on the conductive wire 4; the self-checking mechanism comprises a press button 6, a battery pack 6 and a test wire 8 which form a circuit loop, the test wire 8 is sleeved on the current transformer 5, and the press button 6 is arranged on the outer surface of the shell 1; and the controller 2 is respectively and electrically connected with the current transformer 5 and the alarm.
The household appliance electric leakage alarm of this embodiment, a household appliance's electric leakage monitoring for taking metal casing, fixed part 3 can be fixed casing 1 whole on household appliance's metal casing surface through magnetism, thereby can be applicable to multiple household appliance's use, when household appliance takes place the electric leakage and makes metal casing electrified, the electric leakage current can flow through on the electric wire 4 that conducts electricity through the metal contact, the cover is established and can be produced induced-current at the current transformer 5 on the electric wire 4 this moment, and transmit current signal for controller 2, when controller 2 received the electric current of current transformer 5 transmission, send control signal and report to the police for the alarm, thereby can indicate the user to avoid touching metal casing and take place the electric shock accident, controller 2 adopts STM32F101V8, the 5 models of current transformer are AKH-0.66/K.
Can normally realize in order to guarantee the electric leakage detection function of this embodiment, self-checking mechanism has been set up, self-checking mechanism is including pressing button 6, group battery 6 and test wire 8, press button 6, group battery 6 and test wire 8 constitute circuit loop, when the touching presses button 6, can make circuit loop switch on, thereby the electric energy of group battery 6 can be transmitted on test wire 8, make test wire 8 pass behind current transformer 5, when test wire 8 has the electric current to pass through, current transformer 5 can sense current signal, then controller 2 can control the alarm and report to the police, thereby can test whether current transformer 5 can normally sense the electric current, the unexpected electric leakage condition that appears when preventing current transformer 5 from breaking down.
Preferably, the alarm comprises a buzzer 9 and a warning lamp 10, and the controller 2 is electrically connected with the buzzer 9 and the warning lamp 10 respectively.
Carry out the acousto-optic warning through bee calling organ 9 and warning light 10 to can warn the user, avoid contacting metal casing, bee calling organ 9 and warning light 10 can be supplied power by group battery 6 simultaneously.
Preferably, still include wireless transmission unit 11, wireless transmission unit 11 sets up in casing 1 to be connected with controller 2 electricity, wireless transmission unit 11 can adopt wifi module or zigBee wireless transmission chip to realize.
The leakage information can be transmitted to an intelligent terminal and the like through the arranged wireless transmission unit 11, so that remote monitoring can be realized.
Preferably, the magnetic fixing device further comprises a suction cup 12, wherein the suction cup 12 is arranged on the outer surface of the side surface of the shell 1 where the magnetic fixing part 3 is located.
The suction cup 12 is provided to further secure the housing 1 to the metal casing of the household appliance.
Preferably, the metal contact includes a tube 13, a metal end 14 and a telescopic adjusting portion, the tube 13 extends from the inside of the housing 1 to the outside of the housing 1, the metal end 14 is disposed at one end of the tube 13 located at the outside of the housing 1, the tube 13 is movably connected with the housing 1 through the telescopic adjusting portion, and the conductive wire 4 is electrically connected with the metal end 14.
The metal end 14 can transmit the current of the metal shell of the household appliance to the conductive wire 4, and the tube body 13 can be adjusted in a telescopic mode through the telescopic adjusting portion, so that the metal contact can be in contact with the metal shells in different shapes, and the effective transmission of leakage current is guaranteed.
Preferably, the telescopic adjusting part comprises an adjusting spring 15 and a stopper 16, the stopper 16 is arranged on the outer surface of the tube body 13 outside the housing 1, the adjusting spring 15 is sleeved on the tube body 13, one end of the adjusting spring is connected with the outer surface of the housing 1, and the other end of the adjusting spring is connected with the stopper 16.
The side of casing 1 is directly passed to body 13 of this embodiment, can remove in the casing, and adjusting spring 15 can apply elasticity on dog 16 to can be so that be located the metal end 14 of body 13 tip and domestic appliance's metal casing in close contact with, guarantee leakage current's effective transmission, wear out in order to prevent that body 13 from casing 1 simultaneously, can be provided with the stopper in the body 13 is located one of casing 1 inside and serves.
Referring to the second embodiment shown in fig. 3, the telescopic adjustment part includes an external thread 17 provided on the outer surface of the pipe body 13 and an internal thread 18 provided on the side of the housing 1, and the pipe body 13 is screwed with the housing 1.
The present embodiment can adjust the position of the metal end 14 by rotating the pipe body 13, so that the metal end 14 can be brought into contact with the metal shell.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The household appliance leakage alarm is characterized by comprising a shell, a leakage detection mechanism, a controller, an alarm and a self-detection mechanism, wherein a magnetic suction fixing part is arranged on the outer side surface of the shell, the alarm is arranged on the outer surface of the shell, and the controller is arranged inside the shell; the leakage detection mechanism comprises a metal contact, a conductive wire and a current transformer, wherein the conductive wire and the current transformer are arranged in the shell; the self-checking mechanism comprises a press button, a battery pack and a test wire which form a circuit loop, the test wire is sleeved on the current transformer, and the press button is arranged on the outer surface of the shell; and the controller is respectively electrically connected with the current transformer and the alarm.
2. The household appliance electric leakage alarm according to claim 1, wherein the alarm comprises a buzzer and a warning lamp, and the controller is electrically connected with the buzzer and the warning lamp respectively.
3. The electric leakage alarm of a household appliance according to claim 1, further comprising a wireless transmission unit disposed within the housing and electrically connected to the controller.
4. The household appliance electric leakage alarm device according to claim 1, further comprising a suction cup, wherein the suction cup is arranged on the outer surface of the side surface of the shell where the magnetic fixing part is located.
5. The household appliance electric leakage alarm according to claim 1, wherein the metal contact comprises a tube body, a metal end and a telescopic adjusting portion, the tube body extends from the inside of the shell to the outside of the shell, the metal end is arranged at one end of the tube body located at the outside of the shell, the tube body is movably connected with the shell through the telescopic adjusting portion, and the conductive wire is electrically connected with the metal end.
6. The household appliance leakage alarm according to claim 5, wherein the telescopic adjusting portion comprises an adjusting spring and a stopper, the stopper is disposed on an outer surface of the tube body located outside the housing, the adjusting spring is sleeved on the tube body, one end of the adjusting spring is connected with the outer surface of the housing, and the other end of the adjusting spring is connected with the stopper.
7. The electric leakage alarm of a household appliance according to claim 5, wherein the telescopic adjustment part comprises an external thread provided on an outer surface of a tube body and an internal thread provided on a side surface of the housing, the tube body being screwed with the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020359278.9U CN211506693U (en) | 2020-03-20 | 2020-03-20 | Leakage alarm for domestic electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020359278.9U CN211506693U (en) | 2020-03-20 | 2020-03-20 | Leakage alarm for domestic electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211506693U true CN211506693U (en) | 2020-09-15 |
Family
ID=72403022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020359278.9U Expired - Fee Related CN211506693U (en) | 2020-03-20 | 2020-03-20 | Leakage alarm for domestic electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211506693U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137287A (en) * | 2021-12-02 | 2022-03-04 | 国网江苏省电力有限公司常州供电分公司 | Electricity-testing self-detection warning device based on high applicability of power equipment |
| CN114814638A (en) * | 2022-03-11 | 2022-07-29 | 燕山大学 | Electric leakage alarm device for electric transmission |
| CN117991146A (en) * | 2024-04-03 | 2024-05-07 | 山东省计量科学研究院 | Household appliance leakage detection device |
-
2020
- 2020-03-20 CN CN202020359278.9U patent/CN211506693U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137287A (en) * | 2021-12-02 | 2022-03-04 | 国网江苏省电力有限公司常州供电分公司 | Electricity-testing self-detection warning device based on high applicability of power equipment |
| CN114814638A (en) * | 2022-03-11 | 2022-07-29 | 燕山大学 | Electric leakage alarm device for electric transmission |
| CN117991146A (en) * | 2024-04-03 | 2024-05-07 | 山东省计量科学研究院 | Household appliance leakage detection device |
| CN117991146B (en) * | 2024-04-03 | 2024-06-14 | 山东省计量科学研究院 | Household appliance leakage detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200915 Termination date: 20210320 |