CN111415850B

CN111415850B - Household appliance on-off device capable of self-power-off in short circuit

Info

Publication number: CN111415850B
Application number: CN202010251428.9A
Authority: CN
Inventors: 赵兴寿
Original assignee: Shanghai Nan'an Construction And Installation Engineering Co ltd
Current assignee: Shanghai Nan'an Construction And Installation Engineering Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-12-28
Anticipated expiration: 2040-04-01
Also published as: CN111415850A

Abstract

The invention relates to the technical field of household appliances, and discloses a household appliance on-off device capable of automatically cutting off power in a short circuit. When the household appliance is in short circuit and the like, the female switch contact and the sub-switch contact which are butted together are burnt out along with the short circuit of the appliance, and the circuit which is contacted with the female switch contact and the sub-switch contact to serve as a conductive medium is broken along with the short circuit, so that the current cannot be communicated, the household circuit is broken along with the broken circuit, the household circuit is protected, and property loss caused by the broken circuit of the appliance is avoided.

Description

Household appliance on-off device capable of self-power-off in short circuit

Technical Field

The invention relates to the technical field of household appliances, in particular to a household appliance on-off device capable of automatically cutting off power in a short circuit.

Background

The household appliance is a short for household appliances. Electrical appliances are understood in the narrow sense to mean loads on electrical circuits and devices for controlling, regulating or protecting electrical circuits, motors, etc., such as loudspeakers, switches, varistors, fuses, etc. Electrical appliances in the broad sense refer to products that work using a combination of electrical components, typically using electricity as a source of energy.

Along with the improvement of the application level and the living standard of the power technology, the types of household appliances are continuously increased, the functions of the household appliances are diversified, but the only common point is that the household appliances can be operated after being electrified to realize the respective functions, therefore, the power utilization safety of the appliances is always important, in some news reports, because the news that property loss or personnel injury is caused by short-circuit fire of the household appliances is frequent, when some high-power household appliances are used, the high-power household appliances can exceed the load of the household circuits inevitably to cause short-circuit or fire, at present, most household appliances are provided with circuit switches for controlling the on-off of circuits in families, although the safety can be ensured by closing the circuits, most circuit switches are placed outdoors, the closing time is needed, and if young children mistakenly touch the appliances to cause short-circuit, there is a great safety risk.

Therefore, the household appliance on-off device capable of automatically cutting off power supply in short circuit is provided, and by connecting the household appliance on-off device with a high-power appliance, when the household appliance is cut off, self-power-off protection is carried out, a household circuit is cut off, and potential safety hazards and property loss are avoided.

Disclosure of Invention

Technical scheme

In order to realize the advantages, the invention provides the following technical scheme: the utility model provides a domestic appliance on-off device of self-power-off during short circuit, includes the device main part, the inside of device main part is provided with the electro-magnet, the outside of electro-magnet is connected with the contact head, the outside of contact head is connected with solenoid, solenoid's the outside is connected with the linker, the outside swing joint of electro-magnet has connecting spring, connecting spring's top is connected with the sub-lantern ring, the one end swing joint that connecting spring was kept away from to the sub-lantern ring has buffering subassembly, the one end swing joint that buffering subassembly kept away from the sub-lantern ring has the female lantern ring, the one end swing joint that buffering subassembly was kept away from to the female lantern ring has the pressure spring, the one end that the pressure spring kept away from the female lantern ring is connected with the sub-switch subassembly, the inside of sub-switch subassembly is provided with the sub-switch contact.

Preferably, one end of the sub-switch contact far away from the sub-switch assembly is lapped with a main switch contact, and the whole device is electrified when the sub-switch contact is contacted with the main switch contact.

Preferably, a female switch assembly is arranged on the outer side of the female switch contact.

Preferably, the inside of buffering subassembly is provided with buffer spring, realizes the inside whole buffering of buffering subassembly through buffer spring.

Preferably, the secondary lantern ring and the primary lantern ring are semicircular and symmetrical, and the buffer assembly is clamped in the middle of the secondary lantern ring and the primary lantern ring.

Preferably, the contact heads are provided with two groups which are symmetrical and are lapped on the electromagnet, and electric quantity generated by the electromagnet is transmitted to the electromagnetic coil through the contact heads.

Preferably, the electromagnetic coils are provided in two groups.

Preferably, the electro-magnet is provided with two sets of opposite polarity electrodes, utilizes keeping away from of the opposite side opposite polarity magnetic pole looks attract of electro-magnet, realizes then that the butt of sub switch contact and female switch contact adsorbs.

Advantageous effects

Compared with the prior art, the invention provides the household appliance on-off device capable of automatically cutting off power in a short circuit, which has the following beneficial effects:

1. this domestic appliance on-off device of self-power-off during short circuit, link together through communicating vessel with this device inside and family's circuit, sub-switch contact and female switch contact and the domestic appliance intercommunication of treating the protection, the communicating vessel with family's circuit intercommunication produces electric power, solenoid is electrically conductive then, utilize the principle that the opposite side opposite polarity magnetic pole of electro-magnet inhales mutually, the realization is adsorbed to the butt of sub-switch contact and female switch contact, the domestic appliance who is connected rather than opens then, the control to domestic appliance has been realized.

2. When the household appliance is in short circuit and the like, the female switch contact and the sub-switch contact which are butted together are burnt out along with the short circuit of the appliance, and the circuit which is contacted with the female switch contact and the sub-switch contact to serve as a conductive medium is broken along with the short circuit, so that the current cannot be communicated, the household circuit is broken along with the broken circuit, the household circuit is protected, and property loss caused by the broken circuit of the appliance is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure of area A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a connection structure of the buffer assembly according to the present invention;

FIG. 4 is a schematic view of the solenoid connection structure of the present invention;

FIG. 5 is a schematic cross-sectional view taken along area B of FIG. 4 according to the present invention;

FIG. 6 is a schematic view of the connection structure of the neutron collar of FIG. 5 according to the present invention;

FIG. 7 is a schematic view of the structure of region C of FIG. 6 according to the present invention;

FIG. 8 is a schematic cross-sectional view of the area B of FIG. 4 according to the present invention;

FIG. 9 is a schematic view of the connection structure of the neutron collar of FIG. 8 according to the present invention;

FIG. 10 is a schematic view of the direction of current flow in accordance with the present invention.

In the figure: 1-device body, 2-electromagnet, 3-contact, 4-electromagnetic coil, 5-communicating vessel, 6-connecting spring, 7-sub-sleeve ring, 8-buffer component, 9-mother sleeve ring, 10-pressing spring, 11-sub-switch component, 12-sub-switch contact, 13-mother switch contact, 14-mother switch component and 15-buffer spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, a household appliance on-off device capable of self-power-off during short circuit comprises a device body 1, an electromagnet 2 is arranged inside the device body 1, the outer side of the electromagnet 2 is connected with a contact 3, the outer side of the contact 3 is connected with an electromagnetic coil 4, the contact 3 is provided with two symmetrical groups, the two symmetrical groups are overlapped on the electromagnet 2, the electric quantity generated by the electromagnet 2 is transmitted to the electromagnetic coil 4 through the contact 3, the two groups of electromagnetic coils 4 are provided, the outer side of the electromagnetic coil 4 is connected with a communicating vessel 5, the outer side of the electromagnet 2 is movably connected with a connecting spring 6, a sub-lantern ring 7 is connected above the connecting spring 6, one end of the sub-lantern ring 7, which is far away from the connecting spring 6, is movably connected with a buffer assembly 8, the sub-lantern ring 7 and a main lantern ring 9 are semicircular and symmetrical, the buffer assembly 8 is clamped between the sub-lantern ring 7, one end of the buffer assembly 8, which is far away from the sub-lantern ring 7, is movably connected with the main lantern ring 9, one end of the female lantern ring 9, which is far away from the buffering assembly 8, is movably connected with a pressing spring 10, one end of the pressing spring 10, which is far away from the female lantern ring 9, is connected with a sub-switch assembly 11, and a sub-switch contact 12 is arranged inside the sub-switch assembly 11. Through being in the same place with the inside linker 5 of this device and family circuit connection, sub switch contact 12 and female switch contact 13 and the domestic appliance intercommunication of treating the protection, the linker 5 with family circuit intercommunication produces electric power, and solenoid 4 is electrically conductive then, utilizes the principle that electromagnet 2 opposite side opposite polarity attracted, realizes that the butt of sub switch contact 12 and female switch contact 13 adsorbs, and the domestic appliance who is connected with it opens then.

A female switch contact 13 is lapped at one end of the sub switch contact 12 far away from the sub switch component 11, the electromagnet 2 is provided with two sets of opposite poles, the opposite poles of the electromagnet 2 are attracted and kept away, so that the sub switch contact 12 and the female switch contact 13 are butted and adsorbed, the whole device is electrified when the sub switch contact 12 is contacted with the female switch contact 13, the outer side of the female switch contact 13 is provided with a female switch component 14, the inside of the buffer component 8 is provided with a buffer spring 15, when the household appliance is in short circuit, the female switch contact 13 and the sub-switch contact 12 which are abutted together are burnt out along with the short circuit of the appliance, the circuit which is contacted with the main switch contact 13 and the sub switch contact 12 as a conductive medium is broken off along with the contact, so that the current cannot be communicated, the household circuit is broken along with the contact, the household circuit is protected, and the property loss caused by the broken circuit of the electric appliance is avoided; the overall damping within the damping unit 8 is achieved by the damping spring 15.

The working principle is as follows: when in use, the communicating vessel 5 in the device is connected with a household circuit, and the sub switch contact 12 and the main switch contact 13 are communicated with a household appliance to be protected; when domestic appliance moved, opened the electrical apparatus switch, produced electric power with communicating vessel 5 of family's circuit intercommunication, solenoid 4 is electrically conductive then, passes through contact 3 with electric power and conducts for electro-magnet 2, utilizes the principle that 2 opposite side opposite polarity magnetic poles of electro-magnet attracted mutually, compresses buffer assembly 8 and presses spring 10 and connecting spring 6 then, realizes that the butt of sub-switch contact 12 and female switch contact 13 adsorbs, and the domestic appliance who is connected rather than opens then.

When the household appliance is in short circuit and the like, the female switch contact 13 and the sub-switch contact 12 which are butted together are burnt out due to the short circuit of the appliance, and the circuit which is contacted with the female switch contact 13 and the sub-switch contact 12 and is used as a conductive medium is broken off along with the short circuit, at the moment, the four groups of the communicating vessels 5 which are communicated with the household circuit and the electromagnetic coil 4 are electrified, but the current cannot be communicated (see figure 10) due to the damage of the female switch contact 13 and the sub-switch contact 12, the household circuit is broken along with the short circuit, the household circuit is protected, and property loss caused by the broken circuit of the appliance is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a domestic appliance on-off device of self-power-off during short circuit, includes device main part (1), its characterized in that: the device is characterized in that an electromagnet (2) is arranged inside the device body (1), the outer side of the electromagnet (2) is connected with a contact head (3), the outer side of the contact head (3) is connected with an electromagnetic coil (4), the outer side of the electromagnetic coil (4) is connected with a communicating vessel (5), the outer side of the electromagnet (2) is movably connected with a connecting spring (6), a sub-sleeve ring (7) is connected above the connecting spring (6), one end, far away from the connecting spring (6), of the sub-sleeve ring (7) is movably connected with a buffer component (8), one end, far away from the ion sleeve ring (7), of the buffer component (8) is movably connected with a main sleeve ring (9), one end, far away from the buffer component (8), of the main sleeve ring (9) is movably connected with a pressing spring (10), one end, far away from the main sleeve ring (9), of the pressing spring (10) is connected with a sub-switch component (11), and a sub-switch contact (12) is arranged in the sub-switch assembly (11).

2. The on-off device for a household appliance capable of self-power-off in case of short circuit according to claim 1, characterized in that: and a female switch contact (13) is lapped at one end of the sub-switch contact (12) far away from the sub-switch assembly (11).

3. The on-off device for a household appliance capable of self-power-off in case of short circuit according to claim 2, characterized in that: and a female switch assembly (14) is arranged on the outer side of the female switch contact (13).

4. The on-off device for a household appliance capable of self-power-off in case of short circuit according to claim 1, characterized in that: and a buffer spring (15) is arranged in the buffer component (8).

5. The on-off device for a household appliance capable of self-power-off in case of short circuit according to claim 1, characterized in that: the sub-lantern ring (7) and the main lantern ring (9) are semicircular and symmetrical, and the buffer assembly (8) is clamped in the middle of the sub-lantern ring and the main lantern ring.

6. The on-off device for a household appliance capable of self-power-off in case of short circuit according to claim 1, characterized in that: the contact heads (3) are provided with two symmetrical groups which are lapped on the electromagnets (2).

7. The on-off device for a household appliance capable of self-power-off in case of short circuit according to claim 1, characterized in that: the electromagnetic coils (4) are provided with two groups.

8. The on-off device for a household appliance capable of self-power-off in case of short circuit according to claim 1, characterized in that: the electromagnet (2) is provided with two sets of opposite polarity electrodes.