CN114278983B - Safety switch for electric heater and electric heater - Google Patents
Safety switch for electric heater and electric heater Download PDFInfo
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- CN114278983B CN114278983B CN202111589597.4A CN202111589597A CN114278983B CN 114278983 B CN114278983 B CN 114278983B CN 202111589597 A CN202111589597 A CN 202111589597A CN 114278983 B CN114278983 B CN 114278983B
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- 230000001681 protective effect Effects 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 230000005484 gravity Effects 0.000 claims description 54
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 38
- 229910052802 copper Inorganic materials 0.000 claims description 38
- 239000010949 copper Substances 0.000 claims description 38
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000005284 excitation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Electric Stoves And Ranges (AREA)
Abstract
The invention relates to the technical field of heating equipment, in particular to a safety switch for an electric heater and the electric heater, which comprises a mounting seat, a protective cover, a main circuit switch assembly, a trigger assembly, an auxiliary power-off assembly, a main circuit cable and an auxiliary power supply.
Description
Technical Field
The invention relates to the technical field of heating equipment, in particular to a safety switch for an electric heater and the electric heater.
Background
The electric heater is one of electric appliances for heating in winter, is convenient to use, has ideal heating effect and relatively low energy consumption, so that the market development of the electric heater is very rapid, and the electric heater generates heat by converting electric energy into heat energy in a heating mode, so that most electric heaters have certain potential safety hazards in the use process;
at present, most electric heaters are not installed at fixed positions, but are placed on the ground, people can fall down due to accidental collision or collision of pets at home, if the electric heaters are not found in time and are in contact with inflammables in a room, fire is easily caused, and therefore, anti-falling switches are installed in some electric heaters on the market, but the anti-falling switches have the problem when in use, the existing anti-falling switches break circuits when the electric heaters are slightly inclined, and the electric circuits are turned on again after the electric heaters are restored, so that the electric heating circuits are easily powered on and off by slight movement when the electric heaters are used, loss of heating elements in the electric heaters is quickened for a long time, in addition, when the electric heaters fall down, the electric heaters are reset by personnel, if the electric heaters are damaged or leaked due to falling down, the electric circuits are disconnected, so that the protection circuits do not work, the electric circuits are closed when the electric heaters are righted, and the electric circuits are possibly in the electric shock danger happens when the electric heaters are powered on.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a safety switch for an electric heater and the electric heater.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a safety switch for electric heater, includes mount pad, visor, main circuit switch subassembly, trigger assembly, supplementary outage subassembly, main circuit cable and auxiliary power supply, the inside central point of mount pad puts fixed mounting has main circuit switch subassembly, and main circuit switch subassembly and main circuit cable establish ties, is provided with supplementary outage subassembly between the outer wall of main circuit switch subassembly and the inner wall of mount pad, and supplementary outage subassembly passes through the cable wire and establishes ties with auxiliary power supply, and supplementary outage subassembly and the up end cooperation of main circuit switch subassembly are installed and are triggered the subassembly, and the up end adhesion of mount pad has the visor, and the lower terminal surface of visor and trigger assembly are cooperation mechanism;
the main circuit switch assembly comprises a support tube A fixed at the center position of the bottom surface of the mounting seat through a bolt, a support tube B is arranged in the support tube A, the lower end surface of the support tube B is fixed on the bottom surface of the mounting seat through a bolt, a step hole is formed in the center position of the support tube B, a transmission rod is slidably matched in the step hole, a round support table is fixedly arranged on the upper end surface of the transmission rod through a bolt, a contact A is fixed on the lower end surface of the transmission rod, a contact B is arranged below the contact A, the contact B is fixed at the bottom of the support tube B through a bolt, a reset spring A is arranged between the lower end surface of the round support table and the step of the step hole, and the reset spring A is sleeved on the outer wall of the transmission rod.
Further, the trigger assembly is including welding the support ring at stay tube A up end, and the up end of support ring is the inclined plane to the central slope, and the central point of support ring puts and sets up the round hole, and circular brace table sliding fit is in the round hole, a gravity ball has been placed to the up end of circular brace table, the outside circumference of support ring is provided with a plurality of fan-shaped brace tables, the lower terminal surface of fan-shaped brace table is fixed with the axle sleeve, and axle sleeve and supplementary outage subassembly are the cooperation mechanism, the up end of fan-shaped brace table is the inclined plane, and fan-shaped brace table is less than the other end with the adjacent one end of support ring, fan-shaped brace table up end central point puts flutedly, and the one end that is higher than fan-shaped brace table and support ring adjacent of recess bottom surface.
Further, supplementary outage subassembly includes a plurality of electromagnets of cooperation in the axle sleeve, and the lower terminal surface fixed mounting of electromagnet is on the terminal surface of mount pad inside, be provided with reset spring B between the lower bottom surface of electromagnet and fan-shaped supporting bench, a plurality of electromagnets pass through anode coil and cathode coil parallelly connected, and anode coil and cathode coil fix on stay tube A's outer wall, anode coil passes through cable conductor and copper sheet A fixed connection, and copper sheet A passes through the bolt fastening on support ring's lower terminal surface, cathode coil passes through the cable conductor and is connected with auxiliary power supply's negative pole, copper sheet A's below is provided with copper sheet B, and copper sheet B and copper sheet A are cooperation mechanism, copper sheet B's one end passes through the bolt fastening at circular supporting bench's lower terminal surface, and copper sheet B passes through the cable conductor and is connected with auxiliary power supply's positive pole.
Further, the outer wall of the supporting tube B is wound with a main circuit cable, and the tail end of the main circuit cable is connected with the contact A.
Further, the upper end face of the circular supporting table is an arc face, the central height of the arc face is lower than the peripheral height, a circular groove is formed in the central position of the upper end face of the circular supporting table, and the circular groove and the gravity ball are matched mechanisms.
Furthermore, the lower end face of the protective cover is provided with a step, the step and the fan-shaped supporting table are matched mechanisms, and the center of the upper end face of the protective cover is provided with a transparent observation window.
Further, the elasticity of the reset spring A is smaller than the gravity of the gravity ball, and the elasticity of the reset spring B is larger than the gravity of the gravity ball and smaller than the attraction force of the gravity ball after the electromagnet is excited.
The electric heater comprises the safety switch for the electric heater, which is any one of claims 1 to 7, wherein a main circuit of the safety switch for the electric heater is connected in series to a heating circuit of the electric heater.
The invention has the beneficial effects that:
the main circuit switch assembly is connected with the electric heater heating circuit in series, when the electric heater topples over, the gravity ball rolls down from the circular supporting table, so that the circular supporting table springs up under the elastic action of the reset spring A, and the circuit is powered off to stop heating, so that the safety accident caused by continuous heating after the electric heater topples over is avoided;
according to the invention, the auxiliary power-off assembly is controlled by the built-in independent power supply, and when the copper sheet A and the copper sheet B in the auxiliary power-off assembly are not contacted in a normal state, the auxiliary power-off assembly is in an open state, once the electric heater generates tilting gravity ball to roll to one side of the fan-shaped supporting table, the circular supporting table rebounds, so that the copper sheet A and the copper sheet B are contacted, the auxiliary power-off assembly is electrified, the electromagnet is excited, the gravity ball is attracted to sink the fan-shaped supporting table after excitation, and when the electric heater is righted by a person, the electromagnet is still in an excited state, so that a main circuit is not electrified immediately, and the danger of electric shock of the person is avoided.
3: according to the support tube B, the main circuit cable is wound around the outer part of the support tube B clockwise, and when a main circuit is connected, the gravity ball is subjected to downward ampere force, so that the contact between the contact A and the contact B is more compact, and poor contact at the contact is avoided.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a perspective view of the overall structure of the safety switch of the present invention;
FIG. 2 is a partial structural top view of the safety switch of the present invention;
FIG. 3 is a partial structural perspective view of the safety switch of the present invention;
FIG. 4 is a partial structural perspective view of the safety switch of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 6 is a perspective view of an electromagnet assembly of the present invention;
FIG. 7 is a perspective view of the built-in power supply of the present invention;
fig. 8 is a perspective view of the overall structure of the electric heater of the present invention.
In the figure: 1. a mounting base; 2. a protective cover; 3. a main circuit switch assembly; 4. a trigger assembly; 5. an auxiliary power-off assembly; 6. a main line cable; 7. an auxiliary power supply; 8. an electric heater; 9. a controller; 31. a support tube A; 32. a circular support table; 33. a transmission rod; 34. a return spring A; 35. a contact A; 36. a contact B; 37. a support tube B; 41. a fan-shaped supporting table; 42. a gravity ball; 43. a support ring; 51. an electromagnet; 52. an anode coil; 53. copper sheet A; 54. copper sheet B; 55. a cathode coil; 56. and a return spring B.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1-8, the safety switch for the electric heater of the invention comprises a mounting seat 1, a protective cover 2, a main circuit switch assembly 3, a trigger assembly 4, an auxiliary power-off assembly 5, a main circuit cable 6 and an auxiliary power supply 7, wherein the main circuit switch assembly 3 is fixedly mounted at the inner central position of the mounting seat 1, the main circuit switch assembly 3 is connected with the main circuit cable 6 in series, the auxiliary power-off assembly 5 is arranged between the outer wall of the main circuit switch assembly 3 and the inner wall of the mounting seat 1, the auxiliary power-off assembly 5 is connected with the auxiliary power supply 7 in series through a cable wire, the trigger assembly 4 is mounted in cooperation with the upper end face of the auxiliary power-off assembly 5 and the main circuit switch assembly 3, the protective cover 2 is adhered to the upper end face of the mounting seat 1, the lower end face of the protective cover 2 and the trigger assembly 4 are cooperation mechanisms, the lower end face of the protective cover 2 is provided with steps, the steps and the fan-shaped supporting table 41 are cooperation mechanisms, and the central position of the upper end face of the protective cover 2 is provided with a transparent observation window.
The main circuit switch assembly 3 comprises a support tube A31 fixed at the center position of the bottom surface of the mounting seat 1 through bolts, a support tube B37 is arranged in the support tube A31, the lower end surface of the support tube B37 is fixed on the bottom surface of the mounting seat 1 through bolts, a step hole is formed in the center position of the support tube B37, a transmission rod 33 is slidably matched in the step hole, a main circuit cable 6 is wound on the outer wall of the support tube B37, the tail end of the main circuit cable 6 is connected with a contact A35, a round support table 32 is fixedly arranged on the upper end surface of the transmission rod 33 through bolts, a contact A35 is fixed on the lower end surface of the transmission rod 33, a contact B36 is arranged below the contact A35, the contact B36 is fixed at the bottom of the support tube B37 through bolts, a reset spring A34 is arranged between the lower end surface of the round support table 32 and the step hole, the reset spring A34 is sleeved on the outer wall of the transmission rod 33, the elasticity of the reset spring A34 is smaller than the gravity of a gravity ball 42, the elasticity of the reset spring B56 is larger than the gravity of the gravity ball 42, and is smaller than the attraction force of the gravity ball after the electromagnet is excited.
The triggering component 4 comprises a supporting ring 43 welded on the upper end surface of the supporting tube A31, the upper end surface of the supporting ring 43 is an inclined surface inclined towards the center, a round hole is formed in the center position of the supporting ring 43, the round supporting table 32 is in sliding fit in the round hole, a gravity ball 42 is placed on the upper end surface of the round supporting table 32, the upper end surface of the round supporting table 32 is an arc surface, the center height of the round supporting table 32 is lower than the peripheral height, a round groove is formed in the center position of the upper end surface of the round supporting table 32, the round groove and the gravity ball 42 are matched mechanisms, a plurality of fan-shaped supporting tables 41 are circumferentially arranged on the outer side of the supporting ring 43, a shaft sleeve is fixed on the lower end surface of the fan-shaped supporting table 41, the shaft sleeve and the auxiliary power-off component 5 are matched mechanisms, the upper end surface of the fan-shaped supporting table 41 is an inclined surface, one end of the fan-shaped supporting table 41 adjacent to the supporting ring 43 is lower than the other end, the center of the upper end surface of the fan-shaped supporting table 41 is provided with a groove, the bottom surface of the groove is higher than one end of the fan-shaped supporting table 41 adjacent to the supporting ring 43, main circuit current of the electric heater enters the main circuit switch assembly 3 from the main circuit cable 6 and flows through the contact A35 and flows out of the contact B36, when the electric heater works normally, the circuit switch assembly 3 is in a horizontal state, the gravity ball 42 stays in a circular groove of the upper end surface of the circular supporting table 32 under the action of gravity, the gravity ball 42 overcomes the elasticity of the reset spring A34 to enable the circular supporting table 32 to move downwards, the contact A35 is driven by the driving rod 33 to contact the contact B36 to form a closed loop, and at the moment, the magnetic field formed by the main circuit cable 6 in the electrified state enables the gravity ball 42 to receive downward ampere force along the driving rod 33, so that the contact A35 and the contact B36 are more stable.
The auxiliary power-off assembly 5 comprises a plurality of electromagnets 51 matched in a shaft sleeve, the lower end surface of the electromagnets 51 is fixedly arranged on one end surface in the mounting seat 1, a return spring B56 is arranged between the electromagnets 51 and the lower bottom surface of the fan-shaped supporting table 41, the elasticity of the return spring B56 is larger than the gravity of the gravity ball 42 and smaller than the attraction force exerted by the gravity ball 42 after the electromagnets 51 are excited, the electromagnets 51 are connected in parallel through an anode coil 52 and a cathode coil 55, the anode coil 52 and the cathode coil 55 are fixed on the outer wall of the supporting tube A31, the anode coil 52 is fixedly connected with a copper sheet A53 through a cable, the copper sheet A53 is fixed on the lower end surface of the supporting ring 43 through a bolt, the cathode coil 55 is connected with the cathode of the auxiliary power supply 7 through a cable, a copper sheet B54 is arranged below the copper sheet A53, the copper sheet B54 and the copper sheet A53 are matched mechanisms, one end of a copper sheet B54 is fixed on the lower end surface of the circular support table 32 through a bolt, the copper sheet B54 is connected with the anode of the auxiliary power supply 7 through a cable, a plurality of electromagnets 51 are connected in parallel and connected with the auxiliary power supply 7 in series to form a closed loop, a switch of the auxiliary power supply 7 is in a normally closed state, a gravity ball 42 presses the circular support table 32 down during normal operation of the electric heater, the copper sheet B54 fixed below the circular support table 32 is separated from a copper sheet A53, thus the electromagnets 51 are in a non-magnetic state, when the electric heater topples over, the gravity ball 42 above the circular support table 32 rolls off, the circular support table 32 is rebounded under the action of the elastic force of a return spring A34, the copper sheet B54 is contacted with the copper sheet A53, so that the electromagnets 51 are excited, the gravity ball 42 is attracted after excitation of the electromagnets 51, a groove is arranged at the center of the fan-shaped support table 41, and the groove is positioned right above the electromagnets 51, therefore, the gravity ball 42 moves towards the groove when being attracted and finally stays in the groove, the attraction force exerted by the gravity ball 42 overcomes the elasticity of the reset spring B56 to enable the fan-shaped supporting table 41 to be pressed down, the gravity ball 42 is still adsorbed on the fan-shaped supporting table 41 after the electric heater is righted, so that the main circuit is in a power-off state, after a person checks that the main circuit is in a fault state, the switch button of the auxiliary power supply 7 is pressed for a long time, the circuit of the electromagnet 51 is powered off, the electromagnet 51 is demagnetized, the gravity ball 42 rebounds under the elasticity of the reset spring B56, and rolls towards the central position along the inclined surfaces of the upper end surfaces of the fan-shaped supporting table 41 and the circular supporting table 32 and finally falls into the circular groove of the upper end surface of the circular supporting table 32, the state of the gravity ball 42 can be observed through the observation window arranged at the central position of the upper end surface of the protective cover 2 in the resetting process, and the switch button of the auxiliary power supply 7 is released after entering the circular groove is confirmed.
The electric heater 8 comprises the safety switch for the electric heater as claimed in any one of claims 1 to 7, wherein a main circuit of the safety switch for the electric heater is connected in series to a heating circuit of the electric heater.
Working principle:
a normally closed switch: the safety switch is connected in series to the electric heater heating circuit and is in a normally closed state, the contact A35 and the contact B36 are contacted by utilizing the gravity of the gravity ball 42 to form a closed loop, and the contact A35 and the contact B36 are contacted more stably by the gravity ball 42 under the ampere force after the power is applied;
dumping and power-off: when the electric heater falls down, the gravity ball 42 rolls off, the contact A35 and the contact B36 are disconnected to disconnect the heating circuit, meanwhile, the copper sheet B54 and the copper sheet A53 are contacted to form a closed loop, the electromagnet 51 is further excited, the gravity ball 42 is adsorbed on the upper end surface of the fan-shaped supporting table 41, and the electric heater cannot be electrified immediately after being righted;
and (5) power-off recovery: the electromagnet 51 is deenergized by pressing the switch button of the auxiliary power supply 7 for a long time, and the auxiliary power supply 7 is released after the gravity ball 42 is reset from the observation window, so that the auxiliary deenergized line is restored to the initial state.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides a safety switch for electric heater, includes mount pad (1), visor (2), main circuit switch subassembly (3), trigger subassembly (4), supplementary outage subassembly (5), main circuit cable (6) and auxiliary power supply (7), its characterized in that: the main circuit switch assembly (3) is fixedly arranged at the inner center of the mounting seat (1), the main circuit switch assembly (3) is connected with the main circuit cable (6) in series, an auxiliary power-off assembly (5) is arranged between the outer wall of the main circuit switch assembly (3) and the inner wall of the mounting seat (1), the auxiliary power-off assembly (5) is connected with the auxiliary power supply (7) in series through a cable, the auxiliary power-off assembly (5) is matched with the upper end face of the main circuit switch assembly (3) to be provided with the triggering assembly (4), the upper end face of the mounting seat (1) is adhered with the protective cover (2), and the lower end face of the protective cover (2) is matched with the triggering assembly (4);
the main circuit switch assembly (3) comprises a support tube A (31) fixed at the center of the bottom surface of the mounting seat (1) through a bolt, a support tube B (37) is arranged in the support tube A (31), the lower end surface of the support tube B (37) is fixed on the bottom surface of the mounting seat (1) through a bolt, a step hole is formed in the center of the support tube B (37), a transmission rod (33) is in sliding fit in the step hole, a round support table (32) is fixedly arranged on the upper end surface of the transmission rod (33) through a bolt, a contact A (35) is fixed on the lower end surface of the transmission rod (33), a contact B (36) is arranged below the contact A (35), the contact B (36) is fixed at the bottom of the support tube B (37) through a bolt, a reset spring A (34) is arranged between the lower end surface of the round support table (32) and the step of the step hole, and the reset spring A (34) is sleeved on the outer wall of the transmission rod (33);
the trigger assembly (4) comprises a support ring (43) welded on the upper end face of the support tube A (31), the upper end face of the support ring (43) is an inclined face inclined towards the center, a round hole is formed in the center position of the support ring (43), the round support table (32) is in sliding fit in the round hole, a gravity ball (42) is placed on the upper end face of the round support table (32), a plurality of fan-shaped support tables (41) are circumferentially arranged on the outer side of the support ring (43), a shaft sleeve is fixed on the lower end face of the fan-shaped support table (41), the shaft sleeve and the auxiliary power-off assembly (5) are matched mechanisms, the upper end face of the fan-shaped support table (41) is an inclined face, one end, adjacent to the support ring (43), of the fan-shaped support table (41) is lower than the other end, a groove is formed in the center position of the upper end face of the fan-shaped support table (41), and the bottom face of the groove is higher than one end, adjacent to the fan-shaped support table (41) to the support ring (43).
The auxiliary power-off assembly (5) comprises a plurality of electromagnets (51) matched in a shaft sleeve, the lower end face of each electromagnet (51) is fixedly arranged on one end face inside the mounting seat (1), a reset spring B (56) is arranged between each electromagnet (51) and the lower bottom face of the fan-shaped supporting table (41), the electromagnets (51) are connected in parallel through anode coils (52) and cathode coils (55), the anode coils (52) and the cathode coils (55) are fixed on the outer wall of the supporting tube A (31), the anode coils (52) are fixedly connected with the copper sheets A (53) through cables, the copper sheets A (53) are fixed on the lower end face of the supporting ring (43) through bolts, the cathode coils (55) are connected with the cathode of the auxiliary power supply (7) through cables, copper sheets B (54) are arranged below the copper sheets A (53), one ends of the copper sheets B (54) are fixed on the lower end face of the circular supporting table (32) through bolts, and the copper sheets B (54) are connected with the auxiliary power supply (7) through cables;
the outer wall of the supporting tube B (37) is wound with a main circuit cable (6), and the tail end of the main circuit cable (6) is connected with the contact A (35);
the upper end face of the circular supporting table (32) is an arc face, the central height of the arc face is lower than the peripheral height, a circular groove is formed in the central position of the upper end face of the circular supporting table (32), and the circular groove and the gravity ball (42) are matched mechanisms;
the lower end face of the protective cover (2) is provided with a step, the step and the sector supporting table (41) are matched mechanisms, and the center of the upper end face of the protective cover (2) is provided with a transparent observation window;
the elastic force of the reset spring A (34) is smaller than the gravity of the gravity ball (42), and the elastic force of the reset spring B (56) is larger than the gravity of the gravity ball (42) and smaller than the suction force applied to the gravity ball (42) after the electromagnet (51) is excited;
the switch of the auxiliary power supply (7) is in a normally closed state, the gravity ball (42) presses down the circular supporting table (32) when the electric heater works normally, the copper sheet B (54) fixed below the circular supporting table (32) is separated from the copper sheet A (53), so that the electromagnet (51) is in a demagnetizing state, when the electric heater topples over, the gravity ball (42) above the circular supporting table (32) rolls down, the circular supporting table (32) is rebounded by the elastic force of the reset spring A (34), the copper sheet B (54) contacts with the copper sheet A (53) to excite the electromagnets (51), the electromagnets (51) attract the gravity ball (42) after excitation, as the grooves are arranged at the center positions of the fan-shaped supporting table (41) and are positioned right above the electromagnets (51), the gravity ball (42) is attracted to the grooves, finally stays in the grooves, the attractive force exerted by the gravity ball (42) overcomes the elastic force of the fan-shaped reset spring B (56) to enable the fan-shaped supporting table (41) to roll down, after the electric heater is righted, the gravity ball (42) is attracted to the fan-shaped supporting table (41) to be attracted to the main supporting table (41) so that the electromagnet (51) is still in a power-outage state after the electric heater is excited, the electromagnet (51) is in a power outage state when the auxiliary power supply (56) is in a power outage state, therefore, the gravity ball (42) is observed through an observation window arranged in the central position of the upper end surface of the protective cover (2) in the resetting process, and the switch button of the auxiliary power supply (7) is released after entering the circular groove.
2. An electric heater, characterized in that the electric heater (8) comprises an electric heater safety switch as claimed in claim 1, the main circuit of the electric heater safety switch being connected in series to the heating circuit of the electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111589597.4A CN114278983B (en) | 2021-12-23 | 2021-12-23 | Safety switch for electric heater and electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111589597.4A CN114278983B (en) | 2021-12-23 | 2021-12-23 | Safety switch for electric heater and electric heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114278983A CN114278983A (en) | 2022-04-05 |
| CN114278983B true CN114278983B (en) | 2024-03-15 |
Family
ID=80874446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111589597.4A Active CN114278983B (en) | 2021-12-23 | 2021-12-23 | Safety switch for electric heater and electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114278983B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09245591A (en) * | 1996-03-05 | 1997-09-19 | Hitachi Home Tec Ltd | Tumble safety switch |
| CN2901553Y (en) * | 2006-04-28 | 2007-05-16 | 栾润玉 | Micro full closed self locking type anti-fall switch |
| CN201078342Y (en) * | 2007-05-08 | 2008-06-25 | 上海元山电器工业有限公司 | Electric fan with dumping protection function |
| CN103839730A (en) * | 2014-03-26 | 2014-06-04 | 杨国庆 | Anti-toppling microcurrent switch |
| CN203774173U (en) * | 2014-02-23 | 2014-08-13 | 吉安市拓伟电器有限公司 | Fall protection switch |
| CN111128596A (en) * | 2020-02-14 | 2020-05-08 | 怡灏环境技术有限公司 | Buoyancy control switch |
-
2021
- 2021-12-23 CN CN202111589597.4A patent/CN114278983B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09245591A (en) * | 1996-03-05 | 1997-09-19 | Hitachi Home Tec Ltd | Tumble safety switch |
| CN2901553Y (en) * | 2006-04-28 | 2007-05-16 | 栾润玉 | Micro full closed self locking type anti-fall switch |
| CN201078342Y (en) * | 2007-05-08 | 2008-06-25 | 上海元山电器工业有限公司 | Electric fan with dumping protection function |
| CN203774173U (en) * | 2014-02-23 | 2014-08-13 | 吉安市拓伟电器有限公司 | Fall protection switch |
| CN103839730A (en) * | 2014-03-26 | 2014-06-04 | 杨国庆 | Anti-toppling microcurrent switch |
| CN111128596A (en) * | 2020-02-14 | 2020-05-08 | 怡灏环境技术有限公司 | Buoyancy control switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114278983A (en) | 2022-04-05 |
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