CN113724457A - Overheat alarm device for household appliance power line - Google Patents
Overheat alarm device for household appliance power line Download PDFInfo
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- CN113724457A CN113724457A CN202110937858.0A CN202110937858A CN113724457A CN 113724457 A CN113724457 A CN 113724457A CN 202110937858 A CN202110937858 A CN 202110937858A CN 113724457 A CN113724457 A CN 113724457A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/02—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using mechanical transmission
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/04—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using hydraulic transmission; using pneumatic transmission
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
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Abstract
The invention discloses an overheating alarm device for a household appliance power line, which belongs to the technical field of overheating alarm devices, and is characterized in that an overheating driving and adjusting spring, a reflecting alarm ball and a sounding alarm ball are arranged, under the heat conduction action of a thread-pasting heat conduction sheet and a heat conduction rod, when the power line is overheated, the overheating driving and adjusting spring can recover to a high-temperature phase shape, so that the alarm functions of the reflecting alarm ball and the sounding alarm ball are triggered, a reflecting alarm block in the reflecting alarm ball can give an alarm through reflecting light, and a warning whistle in the sounding alarm ball can give an alarm through sounding, so that the invention can give an alarm to people through two modes of sound and light, so that people can find the overheating phenomenon of the power line in time, thereby effectively reducing the safety problem caused by the overheating of the power line, greatly improving the safety performance, and being directly matched with the existing power line for use, need not to reequip the power cord, easy operation, need not the power, the practicality is strong.
Description
Technical Field
The invention relates to the technical field of overheating alarm devices, in particular to an overheating alarm device for a power line of a household appliance.
Background
Home appliances mainly refer to various electric and electronic appliances used in homes and the like. Also known as civil electric appliances and daily electric appliances. The household appliances are released from heavy, trivial and time-consuming household work, create more comfortable and beautiful life and working environment which are more beneficial to physical and mental health for human beings, provide rich and colorful cultural and entertainment conditions, and become necessities of modern family life.
Household appliances can be equipped with a power cord usually for being connected with the socket, and after long-term use, the power cord easily leads to the power cord overheated because of reasons such as ageing or socket quality difference, if do not make the processing in time, not only can lead to the power cord to damage, still easily damage electrical apparatus, and in the serious occasion, can even cause the conflagration.
Among the prior art, can be equipped with earth-leakage protector among the domestic power supply system usually, earth-leakage protector has overload and short-circuit protection function, can be used to protect the overload and the short circuit of circuit or electrical apparatus, but under some circumstances, the power cord is overheated can not trigger earth-leakage protector, and people do not go the touch power cord, hardly finds the power cord again and has overheated phenomenon, leads to the power cord overheated safety problem that causes easily, has huge potential safety hazard. Therefore, we propose an overheat alarm device for the power cord of a household appliance.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an overheating alarm device for a power line of a household appliance, which is characterized in that under the heat conduction action of a line-pasted heat conduction sheet, a heat conduction rod, an overheating driving and adjusting spring, a reflecting alarm ball and a sounding alarm ball, when the power line is overheated, the overheating driving and adjusting spring can recover to a high-temperature phase shape so as to drive a linkage block to trigger the alarm functions of the reflecting alarm ball and the sounding alarm ball, the reflecting alarm block in the reflecting alarm ball can give an alarm through reflection, and the alarm whistle in the sounding alarm ball can give a sound to give an alarm, so that the overheating phenomenon of the power line can be found in time by giving an alarm to people through sound and light, thereby effectively reducing the safety problem caused by the overheating of the power line and greatly improving the safety performance, the invention can be directly matched with the existing power line for use, does not need to modify the power line, has simple operation, does not need a power supply and has strong practicability.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An overheating alarm device for a household appliance power line comprises two support boxes, wherein a line pasting heat conducting strip is arranged between the two support boxes, an isothermal adjustment barrel is fixedly mounted in each support box, heat conducting rods are fixedly connected to two sides of the line pasting heat conducting strip, the heat conducting rods penetrate through the outer walls of the support boxes and the isothermal adjustment barrel and extend into the isothermal adjustment barrel, an overheating driving and adjusting spring is fixedly connected to the inner wall of the bottom end of the isothermal adjustment barrel and is made of a shape memory alloy material, the overheating driving and adjusting spring is in a low-temperature phase shape, a linkage block is fixedly connected to the top end of the overheating driving and adjusting spring, the linkage block penetrates through the outer wall of the top end of the isothermal adjustment barrel in a sliding mode and extends to the outer portion of the isothermal adjustment barrel, one of the support boxes penetrates through and is embedded with a reflective alarm ball, and the other support box penetrates through and is embedded with a sounding alarm ball, the reflection of light warning ball includes perspective hemisphere, elasticity help rise hemisphere, reflection of light warning piece, shading closing plate, shading piece, the perspective hemisphere helps rise hemisphere phase-match with elasticity, the perspective hemisphere helps rise hemisphere sealing fixed connection with elasticity, and the perspective hemisphere is located the top that elasticity helps rise hemisphere, fixedly connected with reflection of light warning piece on the inner wall of elasticity helps rise hemisphere, sealing fixed connection has the shading closing plate on the inner wall of perspective hemisphere, the top fixedly connected with shading piece of reflection of light warning piece, the shading piece run through the shading closing plate and with shading closing plate sliding connection.
Further, the sound production warning ball comprises a hard hemisphere, an elastic flow-assisting hemisphere, an air outlet one-way valve, an air inlet one-way valve and a warning whistle, wherein the hard hemisphere is matched with the elastic flow-assisting hemisphere, the hard hemisphere is fixedly connected with the elastic flow-assisting hemisphere in a sealing manner, the hard hemisphere is located above the elastic flow-assisting hemisphere, and the sound production warning ball is filled with air.
Further, run through on the outer wall of stereoplasm hemisphere and be provided with the check valve of giving vent to anger, the check valve that admits air, the one end fixedly connected with of the check valve of giving vent to anger warns the whistle, the bottom that the hemisphere was assisted to elasticity offsets with the top that corresponds the linkage piece, through the setting of sound production warning ball, when power cord high temperature made linkage piece rebound, the linkage piece can extrude elasticity and assist the hemisphere, made the air in the sound production warning ball receive the extrusion to the check valve of giving vent to anger switches on and produces the air current flow direction and warn the whistle, and then triggers the alarming function of sound production warning ball, makes the warning whistle send out the sound and warn, has further improved the security performance.
Furthermore, the line-pasting heat-conducting strip is arranged to be hollow semi-cylindrical, so that the line-pasting heat-conducting strip can be better attached to the surface of a power line, the bottom end of the elastic lifting-assisting hemisphere is abutted to the top end of the corresponding linkage block, the linkage block can move upwards to extrude the elastic lifting-assisting hemisphere, and the light-reflecting warning block is driven to move upwards.
Furthermore, the shape memory alloy material is a shape memory alloy with a two-way memory effect, the length of the low-temperature phase shape of the overheating driving adjusting spring is smaller than that of the high-temperature phase shape, the wire-pasting heat-conducting sheet is sleeved on the power line, the inner surface of the wire-pasting heat-conducting sheet is attached to the power line, and under the heat conduction action of the wire-pasting heat-conducting sheet and the heat-conducting rod, the inside of the isothermal adjusting cylinder is in heat conduction connection with the power line, so that the temperature inside the isothermal adjusting cylinder can be kept synchronous with the power line, the temperature of the power line rises, the temperature inside the isothermal adjusting cylinder rises along with the rise of the temperature, when the temperature inside the isothermal adjusting cylinder reaches the phase change temperature of the overheating driving adjusting spring due to the fact that the low-temperature phase shape is restored to the high-temperature phase shape, the linkage block is driven to move upwards, and the alarming function of the reflecting alarming ball and the sounding alarming ball is triggered, people can find the overheating phenomenon of the power line in time.
Furthermore, the bottom end of the linkage block is fixedly connected with two elastic pull ropes, one end, far away from the linkage block, of each elastic pull rope is fixedly connected with the inner wall of the bottom end of the isothermal adjustment cylinder, when the temperature in the isothermal adjustment cylinder rises, the air pressure in the isothermal adjustment cylinder can also increase, the elastic pull ropes can provide a pulling force, the linkage block is prevented from moving upwards due to the effect of the air pressure, and then the alarm function is prevented from being triggered mistakenly.
Furthermore, the outer wall of the heat conducting rod is sleeved with a heat insulation sleeve, one end of the heat insulation sleeve is fixedly connected with the wire-pasting heat conducting strip, the other end of the heat insulation sleeve is fixedly connected with the isothermal adjustment cylinder, and the heat insulation sleeve can play a heat insulation role, so that heat loss is reduced, and the heat conduction efficiency of the heat conducting rod is improved.
Further, perspective hemisphere adopts transparent material to make, reflection of light warning piece adopts reflecting material to make, the shading closing plate sets up in perspective hemisphere, elasticity helps the junction of rising hemisphere, through the setting of reflection of light warning ball, when power cord high temperature makes linkage piece rebound, the linkage piece can extrude elasticity and help rising hemisphere, make elasticity help rising hemisphere sunken deformation to drive reflection of light warning piece rebound, cause partial reflection of light warning piece to remove to the top of shading closing plate, and then trigger the alarming function of reflection of light warning ball, the reflection of light performance of reflection of light warning piece can be warned to people, make people's accessible observe the reflection of light of reflection of light warning piece, and judge that the power cord is in overheated state.
Further, two the below of supporting box is provided with supports anti-skidding subassembly support anti-skidding subassembly includes the iron base, the top fixedly connected with of iron base and subsides line conducting strip assorted antiskid line piece of pasting.
Further, the bottom fixedly connected with of supporting box connects magnet, the internal surface of antiskid pad pasting line piece is through rough handling, through the setting that supports anti-skidding subassembly, during the use, can establish the top to the power cord with the pad pasting line conducting strip cover to establish the bottom to the power cord with the heat conduction excellent cover, under the effect of magnetic attraction between iron base and connection magnet, pad pasting line conducting strip, antiskid pad pasting line piece can press from both sides tightly the power cord, thereby can strengthen being connected between isothermal adjustment section of thick bamboo and the power cord, and then prevent that pad pasting line conducting strip and power cord from producing relative slip.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme is characterized in that the adhesive thread heat conducting strip, the heat conducting rod, the overheating driving and adjusting spring, the reflecting alarm ball and the sounding alarm ball are arranged, under the heat conducting action of the adhesive thread heat conducting strip and the heat conducting rod, when a power line is overheated, the overheating driving and adjusting spring can recover to a high-temperature phase shape, so that the linkage block is driven to trigger the alarm functions of the reflecting alarm ball and the sounding alarm ball, the reflecting alarm block in the reflecting alarm ball can give an alarm through reflecting light, and a warning whistle in the sounding alarm ball can give a sound to give an alarm, so that the alarm can be given to people through sound and light modes, people can find the overheating phenomenon of the power line in time, the safety problem caused by the overheating of the power line is effectively reduced, the safety performance is greatly improved, the alarm can be directly matched with the existing power line for use without refitting the power line, the operation is simple, and the alarm can be carried out on the power line, No power supply is needed, and the practicability is strong.
(2) The bottom that the hemisphere was helped to rise to elasticity offsets with the top that corresponds the linkage piece for the upward movement of linkage piece can lead to the fact the extrusion to elasticity helping rise the hemisphere, and then drives the piece upward movement that warns of reflection of light.
(3) The shape memory alloy material is a shape memory alloy with a two-way memory effect, the length of the low-temperature phase shape of the overheating drive adjusting spring is smaller than that of the high-temperature phase shape, the wire-pasting heat conducting sheet is sleeved on the power line, the inner surface of the wire-pasting heat conducting sheet is attached to the power line, the heat conducting connection between the inside of the isothermal adjusting cylinder and the power line can be established under the heat conducting action of the wire-pasting heat conducting sheet and the heat conducting rod, so that the temperature inside the isothermal adjusting cylinder can be kept synchronous with the power line, the temperature of the power line rises, the temperature inside the isothermal adjusting cylinder rises along with the rise of the temperature, when the temperature inside the isothermal adjusting cylinder reaches the phase transition temperature of the overheating drive adjusting spring due to the overhigh temperature of the power line, the overheating drive adjusting spring is lengthened due to the fact that the low-temperature phase shape is restored to the high-temperature phase shape, the linkage block is driven to move upwards, and the alarming function of the reflecting alarming ball and the sounding alarming ball is triggered, people can find the overheating phenomenon of the power line in time.
(4) The bottom fixedly connected with of linkage block has two elasticity stay cords, and the one end that the linkage block was kept away from to the elasticity stay cord is connected with the bottom inner wall fixed connection of a thermostatic cartridge, and when the temperature rose in the thermostatic cartridge, its inside atmospheric pressure also can increase, and the elasticity stay cord can provide a pulling force, prevents linkage block because of the effect of atmospheric pressure rebound, and then prevents that alarming function from being triggered by mistake.
(5) The heat-insulating sleeve is sleeved on the outer wall of the heat-conducting rod, one end of the heat-insulating sleeve is fixedly connected with the wire-pasting heat-conducting fin, the other end of the heat-insulating sleeve is fixedly connected with the isothermal adjustment cylinder, and the heat-insulating sleeve can play a heat-insulating role, so that the heat loss is reduced, and the heat-conducting efficiency of the heat-conducting rod is improved.
(6) Through the setting of reflection of light warning ball, when power cord high temperature made the linkage piece rebound, the linkage piece can extrude elasticity and help rising the hemisphere, make elasticity help rising the sunken deformation of hemisphere, thereby it upwards moves to drive the reflection of light warning piece, cause the top that part reflection of light warning piece removed to the shading closing plate, and then trigger the alarming function of reflection of light warning ball, the reflection of light performance of reflection of light warning piece, can send out to people and warn, make people's accessible observe the reflection of light of reflection of light warning piece, and judge that the power cord is in overheated state.
(7) Through the setting of sound production warning ball, when power cord high temperature made linkage piece rebound, the linkage piece can extrude elasticity class flow aiding hemisphere, made the interior air of sound production warning ball receive the extrusion to make the check valve of giving vent to anger switch on and produce the air current flow direction and show the police whistle, and then trigger the alarming function of sound production warning ball, make the police whistle send out the sound and warn, further improved the security performance.
(8) Through the setting that supports anti-skidding subassembly, during the use, can establish the top to the power cord with the line facing conducting strip cover to establish the bottom to the power cord with the heat conduction stick cover, under the effect of magnetic attraction between iron base and the connection magnet, line facing conducting strip, anti-skidding line facing strip can press from both sides tightly the power cord, thereby can strengthen being connected between an isothermal adjustment section of thick bamboo and the power cord, and then prevent that line facing conducting strip and power cord from producing relative slip.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic sectional view of one of the support boxes according to the present invention;
FIG. 3 is a schematic cross-sectional view of the isothermal regulating cylinder according to the present invention;
FIG. 4 is a schematic diagram showing the change in shape of the thermostatic cartridge in the event of overheating of the power cord in the present invention;
FIG. 5 is a schematic cross-sectional view of the reflective alarm ball of the present invention;
FIG. 6 is a schematic diagram showing the change of the shape of the reflecting alarm ball when the power cord is overheated;
FIG. 7 is a schematic sectional view of another support box according to the present invention;
FIG. 8 is a schematic cross-sectional view of the sounding warning ball of the present invention;
FIG. 9 is a schematic diagram showing the change of the pictograph of the sounding warning ball when the power cord is overheated;
fig. 10 is a pictorial view of the present invention when mounted to a power cord.
The reference numbers in the figures illustrate:
101. a support box; 102. sticking a line heat-conducting sheet; 103. an isothermal adjustment cylinder; 104. a heat conducting rod; 105. a thermal insulation sleeve; 106. an over-temperature drive tuning spring; 107. a linkage block; 108. an elastic pull rope; 109. connecting a magnet; 002. a reflective alarm ball; 201. a perspective hemisphere; 202. an elastic lifting-assisting hemisphere; 203. a light reflecting warning block; 204. a light-shielding sealing plate; 205. a light shielding block; 003. a sounding warning ball; 301. a hard hemisphere; 302. an elastic flow-aiding hemisphere; 303. an air outlet one-way valve; 304. an air inlet check valve; 305. a warning whistle; 401. an iron base; 402. the antiskid pastes the line piece.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-10, an overheat alarm device for a power line of a household appliance comprises two supporting boxes 101, a wire-attached heat-conducting strip 102 is disposed between the two supporting boxes 101, an isothermal adjustment cylinder 103 is fixedly mounted in the supporting boxes 101, heat-conducting rods 104 are fixedly connected to both sides of the wire-attached heat-conducting strip 102, the heat-conducting rods 104 penetrate through the supporting boxes 101 and the outer wall of the isothermal adjustment cylinder 103 and extend to the inside of the isothermal adjustment cylinder 103, an overheat driving adjustment spring 106 is fixedly connected to the inner wall of the bottom end of the isothermal adjustment cylinder 103, the overheat driving adjustment spring 106 is made of a shape memory alloy material, the overheat driving adjustment spring 106 is in a low-temperature phase shape, a link block 107 is fixedly connected to the top end of the overheat driving adjustment spring 106, the link block 107 penetrates through the outer wall of the top end of the isothermal adjustment cylinder 103 in a sliding manner and extends to the outside of the isothermal adjustment cylinder 103, the wire-attached heat-conducting strip 102 is in a hollow semi-cylindrical shape, so that the wire-attached heat-conducting strip 102 can be better attached to the surface of the power line, the bottom end of the elastic lifting-aid hemisphere 202 abuts against the top end of the corresponding linkage block 107, so that the upward movement of the linkage block 107 can extrude the elastic lifting-aid hemisphere 202, and further drive the light-reflecting warning block 203 to move upward.
Referring to fig. 3-4, the shape memory alloy material is a shape memory alloy with two-way memory effect, the length of the low-temperature phase shape of the overheating driving adjusting spring 106 is smaller than the length of the high-temperature phase shape, the wire-attached heat-conducting strip 102 is sleeved on the power line, and the inner surface of the wire-attached heat-conducting strip 102 is attached to the power line, so that the inside of the isothermal adjusting cylinder 103 is connected with the power line in a heat-conducting manner under the heat-conducting action of the wire-attached heat-conducting strip 102 and the heat-conducting rod 104, so that the temperature inside the isothermal adjusting cylinder 103 can be kept synchronous with the power line, as shown in fig. 4, the temperature of the power line rises, the temperature inside the isothermal adjusting cylinder 103 also rises, when the temperature inside the isothermal adjusting cylinder 103 is too high and reaches the phase transition temperature of the overheating driving adjusting spring 106, the overheating driving adjusting spring 106 will be lengthened due to the recovery from the low-temperature phase shape to the high-temperature phase shape, thereby driving the linkage block 107 to move upwards, and then the alarm functions of the reflective alarm ball 002 and the sounding alarm ball 003 are triggered, so that people can find the overheating phenomenon of the power line in time.
Referring to fig. 3, two elastic pull ropes 108 are fixedly connected to the bottom end of the linkage block 107, one end of each elastic pull rope 108, which is far away from the linkage block 107, is fixedly connected to the inner wall of the bottom end of the isothermal adjustment cylinder 103, when the temperature in the isothermal adjustment cylinder 103 rises, the air pressure in the isothermal adjustment cylinder also increases, the elastic pull rope 108 can provide a pulling force to prevent the linkage block 107 from moving upwards due to the action of the air pressure, and further prevent the alarm function from being triggered by mistake, a heat insulation sleeve 105 is sleeved on the outer wall of the heat conduction rod 104, one end of the heat insulation sleeve 105 is fixedly connected to the wire-pasted heat conduction sheet 102, and the other end of the heat insulation sleeve 105 is fixedly connected to the isothermal adjustment cylinder 103, the heat insulation sleeve 105 can play a heat insulation role, so that the loss of heat is reduced, and the heat conduction efficiency of the heat conduction rod 104 is improved.
Referring to fig. 2 and 5-6, a reflective alarm ball 002 is embedded in the top end of one of the supporting boxes 101, the reflective alarm ball 002 includes a transparent hemisphere 201, an elastic lifting-assisting hemisphere 202, a reflective alarm block 203, a light-shielding sealing plate 204, and a light-shielding block 205, the transparent hemisphere 201 is matched with the elastic lifting-assisting hemisphere 202, the transparent hemisphere 201 is fixedly connected with the elastic lifting-assisting hemisphere 202 in a sealing manner, the transparent hemisphere 201 is located above the elastic lifting-assisting hemisphere 202, the reflective alarm block 203 is fixedly connected to the inner wall of the elastic lifting-assisting hemisphere 202, the light-shielding sealing plate 204 is fixedly connected to the inner wall of the transparent hemisphere 201 in a sealing manner, the light-shielding block 205 is fixedly connected to the top end of the reflective alarm block 203, the light-shielding block 205 penetrates through the light-shielding sealing plate 204 and is slidably connected to the light-shielding sealing plate 204, the transparent hemisphere 201 is made of transparent material, the reflective alarm block 203 is made of reflective material, the light-shielding sealing plate 204 is disposed on the hemisphere 201, the transparent hemisphere 201, the light-shielding sealing plate 204 is disposed on the transparent hemisphere 201, Elasticity helps the junction of rise hemisphere 202, setting through reflection of light warning ball 002, when power cord high temperature makes linkage piece 107 rebound, as shown in fig. 6, linkage piece 107 can extrude elasticity and help rise hemisphere 202, make elasticity help rise hemisphere 202 sunken deformation, thereby drive reflection of light warning piece 203 rebound, cause part reflection of light warning piece 203 to remove to the top of shading closing plate 204, and then trigger reflection of light warning ball 002's alarming function, reflection of light warning piece 203's reflective performance, can send out the warning to people, make people's accessible observe the reflection of light warning piece 203, and judge that the power cord is in overheated state.
Referring to fig. 7-9, a sounding warning ball 003 is inserted through the top end of the other supporting box 101, the sounding warning ball 003 includes a hard hemisphere 301, an elastic flow-assisting hemisphere 302, an air outlet check valve 303, an air inlet check valve 304, and a warning whistle 305, the hard hemisphere 301 is matched with the elastic flow-assisting hemisphere 302, the hard hemisphere 301 is fixedly connected with the elastic flow-assisting hemisphere 302 in a sealing manner, the hard hemisphere 301 is located above the elastic flow-assisting hemisphere 302, the sounding warning ball 003 is filled with air, the air outlet check valve 303 and the air inlet check valve 304 are arranged on the outer wall of the hard hemisphere 301 in a penetrating manner, one end of the air outlet check valve 303 is fixedly connected with the warning whistle 305, the bottom end of the elastic flow-assisting hemisphere 302 abuts against the top end of the corresponding linkage block 107, and when the linkage block 107 moves upward due to the excessive temperature of the sounding warning ball 003, as shown in fig. 9, the linkage block 107 extrudes the elastic flow-assisting hemisphere 302, the air in the sounding warning ball 003 is squeezed, so that the air outlet one-way valve 303 is communicated and generates airflow to the warning whistle 305, the warning function of the sounding warning ball 003 is triggered, the warning whistle 305 makes a sound to warn, and the safety performance is further improved.
Referring to fig. 1 and 10, the supporting anti-slip assembly is disposed below the two supporting boxes 101 and includes an iron base 401, the top end of the iron base 401 is fixedly connected with an anti-slip wire-pasting sheet 402 matched with the wire-pasting heat-conducting sheet 102, the bottom end of the supporting box 101 is fixedly connected with a connecting magnet 109, the inner surface of the anti-slip wire-pasting sheet 402 is subjected to rough treatment, and the wire-pasting heat-conducting sheet 102 and the anti-slip wire-pasting sheet 402 can clamp the power line tightly under the action of magnetic attraction between the iron base 401 and the connecting magnet 109, so that the connection between the isothermal adjusting cylinder 103 and the power line can be enhanced, and the wire-pasting heat-conducting sheet 102 and the power line are prevented from sliding relatively.
The triggering temperatures of the alarm functions of the reflective alarm ball 002 and the sounding alarm ball 003 are mainly related to the phase transition temperature of the overheat driving adjusting spring 106, so that workers in the field can adjust the temperature according to the safe use temperature of the power line, and select the shape memory alloy with the proper phase transition temperature to manufacture the overheat driving adjusting spring 106, so that when the temperature of the power line reaches a dangerous value, the overheat driving adjusting spring 106 can drive the linkage block 107 to trigger the alarm functions of the reflective alarm ball 002 and the sounding alarm ball 003, which is the known technology of the workers in the field and is not described herein.
The invention uses the adhesive thread heat conducting strip 102, the heat conducting rod 104, the overheating driving adjusting spring 106, the reflecting alarming ball 002 and the sounding alarming ball 003 to ensure that the overheating driving adjusting spring 106 can return to a high temperature shape when the power cord is overheated under the heat conducting action of the adhesive thread heat conducting strip 102 and the heat conducting rod 104, thereby driving the linkage block 107 to trigger the alarming function of the reflecting alarming ball 002 and the sounding alarming ball 003, the reflecting alarming block 203 in the reflecting alarming ball 002 can alarm through reflecting light, and the alarming 305 in the sounding alarming ball 003 can sound to alarm, thereby the invention can alarm to people through two modes of sound and light, so that people can find the overheating phenomenon of the power cord in time, thereby effectively reducing the safety problem caused by the overheating of the power cord, greatly improving the safety performance, and the invention can be directly matched with the existing power cord without refitting the power cord, the operation is simple, no power supply is needed, and the practicability is strong.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides an overheated alarm device for domestic appliance power cord, includes two supporting box (101), its characterized in that: a line-pasting heat-conducting fin (102) is arranged between the two supporting boxes (101), an isothermal adjusting cylinder (103) is fixedly installed in each supporting box (101), heat-conducting rods (104) are fixedly connected to two sides of each line-pasting heat-conducting fin (102), each heat-conducting rod (104) penetrates through the supporting box (101) and the outer wall of the isothermal adjusting cylinder (103) and extends into the isothermal adjusting cylinder (103), an overheating driving adjusting spring (106) is fixedly connected to the inner wall of the bottom end of the isothermal adjusting cylinder (103), each overheating driving adjusting spring (106) is made of a shape memory alloy material, each overheating driving adjusting spring (106) is in a low-temperature phase shape, a linkage block (107) is fixedly connected to the top end of each overheating driving adjusting spring (106), each linkage block (107) penetrates through the outer wall of the isothermal adjusting cylinder (103) in a sliding manner and extends to the outside of the isothermal adjusting cylinder (103), the top end of one of the supporting boxes (101) is embedded with a reflective alarm ball (002) in a penetrating way, and the top end of the other supporting box (101) is embedded with a sounding alarm ball (003) in a penetrating way;
reflecting light warning ball (002) helps rise hemisphere (202), reflection of light warning piece (203), shading sealing plate (204), shading piece (205) including perspective hemisphere (201), elasticity, perspective hemisphere (201) and elasticity help and rise hemisphere (202) phase-match, sealed fixed connection of perspective hemisphere (201) and elasticity help and rise hemisphere (202), and perspective hemisphere (201) are located the top that elasticity helps rise hemisphere (202), fixedly connected with reflection of light warning piece (203) on the inner wall of elasticity helps rising hemisphere (202), sealed fixed connection has shading sealing plate (204) on the inner wall of perspective hemisphere (201), the top fixedly connected with shading piece (205) of reflection of light warning piece (203), shading piece (205) run through shading sealing plate (204) and with shading sealing plate (204) sliding connection.
2. The overheat warning device for the power cord of the home appliance according to claim 1, wherein: sound production ball of warning (003) including stereoplasm hemisphere (301), elasticity flow aid hemisphere (302), air outlet check valve (303), air inlet check valve (304), warning whistle (305), stereoplasm hemisphere (301) and elasticity flow aid hemisphere (302) phase-match, stereoplasm hemisphere (301) and elasticity flow aid hemisphere (302) sealed fixed connection, and stereoplasm hemisphere (301) are located the top that elasticity flow aid hemisphere (302), sound production ball of warning (003) intussuseption is filled with the air.
3. The overheat warning device for the power cord of the home appliance according to claim 2, wherein: an air outlet one-way valve (303) and an air inlet one-way valve (304) penetrate through the outer wall of the hard hemisphere (301), one end of the air outlet one-way valve (303) is fixedly connected with a warning whistle (305), and the bottom end of the elastic flow-assisting hemisphere (302) is abutted to the top end of the corresponding linkage block (107).
4. The overheat warning device for the power cord of the home appliance according to claim 1, wherein: the line-pasting heat-conducting fin (102) is arranged to be in a hollow semi-cylindrical shape, and the bottom end of the elastic lifting-assisting hemisphere (202) is abutted to the top end of the corresponding linkage block (107).
5. The overheat warning device for the power cord of the home appliance according to claim 1, wherein: the shape memory alloy material is a shape memory alloy with a two-way memory effect, and the length of the low-temperature phase shape of the thermal drive adjusting spring (106) is smaller than that of the high-temperature phase shape.
6. The overheat warning device for the power cord of the home appliance according to claim 1, wherein: the bottom end of the linkage block (107) is fixedly connected with two elastic pull ropes (108), and one end, far away from the linkage block (107), of each elastic pull rope (108) is fixedly connected with the inner wall of the bottom end of the isothermal adjustment cylinder (103).
7. The overheat warning device for the power cord of the home appliance according to claim 1, wherein: the outer wall of the heat conducting rod (104) is sleeved with a heat insulating sleeve (105), one end of the heat insulating sleeve (105) is fixedly connected with the wire-sticking heat conducting fin (102), and the other end of the heat insulating sleeve is fixedly connected with the isothermal adjustment cylinder (103).
8. The overheat warning device for the power cord of the home appliance according to claim 1, wherein: the transparent hemisphere (201) is made of transparent materials, the reflective warning block (203) is made of reflective materials, and the shading sealing plate (204) is arranged at the joint of the transparent hemisphere (201) and the elastic lifting assisting hemisphere (202).
9. The overheat warning device for the power cord of the home appliance according to claim 1, wherein: two the below of supporting box (101) is provided with supports anti-skidding subassembly support anti-skidding subassembly includes iron base (401), the top fixedly connected with of iron base (401) and subsides line heat conduction piece (102) assorted antiskid line piece (402).
10. The overheat warning device for the power cord of the home appliance according to claim 9, wherein: the bottom end of the supporting box (101) is fixedly connected with a connecting magnet (109), and the inner surface of the anti-skid adhesive line piece (402) is subjected to rough treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110937858.0A CN113724457B (en) | 2021-08-16 | 2021-08-16 | Overheat alarm device for household appliance power line |
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| CN202110937858.0A CN113724457B (en) | 2021-08-16 | 2021-08-16 | Overheat alarm device for household appliance power line |
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| CN113724457B CN113724457B (en) | 2022-08-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117147949A (en) * | 2023-08-22 | 2023-12-01 | 徐州亚泰电机有限公司 | Current alarm device for power supply switch |
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| CN113724457B (en) | 2022-08-16 |
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