CN213395685U - Protection device for electric heating tube of humidifier - Google Patents
Protection device for electric heating tube of humidifier Download PDFInfo
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- CN213395685U CN213395685U CN202021816412.XU CN202021816412U CN213395685U CN 213395685 U CN213395685 U CN 213395685U CN 202021816412 U CN202021816412 U CN 202021816412U CN 213395685 U CN213395685 U CN 213395685U
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- heating tube
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Abstract
The utility model provides a protection device for humidifier electric heating tube, the electrothermal tube includes first wiring end, the second wiring end, base and protection component, equal fixedly connected with static contact on first wiring end and the second wiring end, static contact on the first wiring end and the second wiring end all are connected with humidifier power cord electricity through protection component, protection component includes the temperature sensing magnet steel, coil spring, a permanent magnet, the layer board, moving contact and wire, coil spring's one end and sealed cavity's roof fixed connection, the other end and layer board fixed connection, temperature sensing magnet steel fixed mounting locates among coil spring in the roof and the cover of sealed cavity, permanent magnet fixed mounting is on the layer board and the cover is located among the coil spring, the one end and the layer board fixed connection of moving contact, the one end and the moving contact of wire are connected. The utility model discloses can carry out overheat protection to the humidifier electrothermal tube, the follow-up maintenance of being convenient for has fine practicality.
Description
Technical Field
The utility model relates to a humidifier technical field particularly, relates to a protection device for humidifier electric heat pipe.
Background
The electric heating humidifier is a device for releasing water vapor to humidify indoor air according to the principle that electric current generates heat through a resistor and electric energy is converted into heat energy. If water is not filled into the water container of the humidifier or when the water is evaporated, the temperature of the electric heating tube can rise rapidly, and an overheating protection device is needed to control the electric heating tube to stop working in time, so that overheating damage of the electric heating tube is prevented. When the surface of the electric heating tube is immersed in water in the working process of the humidifier, the overheating protection device does not act, when water vapor evaporates and the water level continuously drops to enable the surface of the electric heating tube to be completely away from the water level, the temperature of the electric heating tube can rapidly rise, and then the overheating protection device rapidly acts to enable the electric heating tube to stop heating.
In the prior art, there is a type of overheat protection device for an electric heating tube of an electric heating humidifier, which cuts off the power supply of the electric heating tube of the humidifier by fusing a thermal fuse, so as to achieve the purpose of overheat protection. However, the overheat protection device for the electric heating tube of the electric heating humidifier needs to replace the thermal fuse after the thermal fuse is fused, so that the electric heating tube can continue to work, the subsequent maintenance is inconvenient, and the structure of the overheat protection device needs to be further improved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the overheat protection device of electric heating type humidifier electrothermal tube and need change the thermal link after the thermal link fuses, can make the electrothermal tube continue work and the problem of the follow-up maintenance of being not convenient for, the utility model provides a protection device for humidifier electrothermal tube, its concrete technical scheme is as follows:
a protection device for an electric heating tube of a humidifier comprises a first wiring end and a second wiring end, wherein static contacts are fixedly connected to the first wiring end and the second wiring end, the protection device for the electric heating tube of the humidifier further comprises a base and a protection assembly, a sealing chamber is arranged in the base, the protection assembly is installed in the sealing chamber, the first wiring end and the second wiring end are located in the sealing chamber, the static contacts on the first wiring end and the second wiring end are electrically connected with a power line of the humidifier through the protection assembly, the protection assembly comprises temperature sensing magnetic steel, a spiral spring, a permanent magnet, a supporting plate, a moving contact and a conducting wire, one end of the spiral spring is fixedly connected with the top wall of the sealing chamber, and the other end of the spiral spring is fixedly connected with the supporting plate, the temperature sensing magnetic steel is fixedly installed on the top wall of the sealed cavity and sleeved in the spiral spring, the permanent magnet is fixedly installed on the supporting plate and sleeved in the spiral spring, one end of the moving contact is fixedly connected with the supporting plate, the moving contact is located below the fixed contact, one end of the wire is connected with the moving contact, and the other end of the wire penetrates through the side wall of the sealed cavity and is located on the outer side of the base.
When the humidifier works normally, namely at least part of the electric heating tube is in contact with water in a water container of the humidifier and the temperature is lower than a limit value, the temperature of the temperature sensing magnetic steel is lower than the Curie temperature of the temperature sensing magnetic steel, the temperature sensing magnetic steel is magnetic, the temperature sensing magnetic steel overcomes the elasticity of the spiral spring and then attracts the permanent magnet, the moving contact is in contact with the fixed contact, a circuit loop is formed between the electric heating tube and a power supply of the humidifier, and the electric heating tube generates heat.
When the electric heating tube is not contacted with water in the water container of the humidifier and the temperature is higher than a limit value, the temperature of the electric heating tube is transmitted to the temperature sensing magnetic steel through the base, when the temperature of the temperature sensing magnetic steel exceeds the Curie temperature, the magnetism of the temperature sensing magnetic steel disappears, the permanent magnet is separated from the temperature sensing magnetic steel under the action of the elasticity of the spiral spring, meanwhile, the static contact is separated from the moving contact, the power supply of the electric heating tube is disconnected, and the humidifier stops working.
When the humidifier is refilled with water, and the temperatures of the electric heating tube and the temperature sensing magnetic steel are reduced to be lower than the Curie temperature, the temperature sensing magnetic steel and the permanent magnet are attracted again, and the electric heating tube can continue to work so as to heat water in the water container of the humidifier.
Because the temperature sensing magnetic steel, the permanent magnet and the spiral spring are used for carrying out overheat protection on the electric heating tube, a thermal fuse body is not needed, the whole structure is simple, the electric heating tube of the humidifier is convenient to carry out overheat protection, and the humidifier has good practicability.
Optionally, the protection assembly further comprises two limiting columns arranged in parallel, one end of each limiting column is fixedly connected with the top wall of the sealed chamber, the other end of each limiting column is connected with the supporting plate in a sliding manner, and the spiral spring, the temperature sensing magnetic steel and the permanent magnet are located between the two limiting columns.
Optionally, a sliding groove is formed in the supporting plate, and the other end of the limiting column penetrates through the sliding groove and then is in sliding connection with the supporting plate.
Through setting up spacing post, the permanent magnet will reciprocate along spacing post, can inject the removal of moving contact for can be better between moving contact and the static contact together.
Optionally, hemispherical protrusions are disposed on the moving contact and the static contact. The hemispherical bulges are arranged, so that the moving contact can be well contacted with the static contact.
Optionally, the curie temperature of the temperature-sensitive magnetic steel is greater than 100 degrees celsius and less than 120 degrees celsius.
Optionally, the base is made of a thermally conductive ceramic material. Therefore, the temperature of the electric heating tube can be better transmitted to the temperature sensing magnetic steel, the insulativity between the electric heating tube and the base can be ensured, and the electric leakage condition is prevented.
The utility model discloses the beneficial technological effect who gains does: because the temperature sensing magnetic steel, the permanent magnet and the spiral spring are used for carrying out overheat protection on the electric heating tube, a thermal fuse body is not needed, the whole structure is simple, the overheat protection can be carried out on the electric heating tube of the humidifier, the follow-up maintenance is convenient, and the practicability is good.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a schematic view of an overall structure of a protection device for an electric heating tube of a humidifier according to an embodiment of the present invention;
fig. 2 is a schematic view showing a structural relationship among the protection component, the base and the fixed contact in the embodiment of the present invention;
fig. 3 is a schematic diagram of a structural relationship among the protection component, the base, and the fixed contact in the embodiment of the present invention.
Description of reference numerals:
1. an electric heating tube; 2. a first terminal; 3. a second terminal; 4. static contact; 5. a base; 6. sealing the chamber; 7. temperature sensing magnetic steel; 8. a coil spring; 9. a permanent magnet; 10. a support plate; 11. a moving contact; 12. a wire; 13. a limiting column; 14. and a hemispherical protrusion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments.
The utility model relates to a protection device for humidifier electric heating tube, according to the following embodiment is illustrated in the attached drawing:
the first embodiment is as follows:
as shown in figure 1, the protection device for the humidifier electric heating tube 1 comprises the electric heating tube 1, wherein the electric heating tube 1 is at least partially inserted into a water container of the humidifier. The electric heating tube 1 comprises a first wiring end 2 and a second wiring end 3, static contacts 4 are fixedly connected to the first wiring end 2 and the second wiring end 3, and the protection device for the electric heating tube 1 of the humidifier further comprises a base 5 and a protection assembly. The base 5 has a sealed chamber 6 therein, which is made of an insulating and heat-conducting material, such as a heat-conducting ceramic. Therefore, the temperature of the electric heating tube 1 can be better transmitted to the temperature sensing magnetic steel 7, the insulation between the electric heating tube 1 and the base 5 can be ensured, and the electric leakage condition is prevented.
The protection component is arranged in the sealed cavity 6, and the first wiring terminal 2 and the second wiring terminal 3 are both positioned in the sealed cavity 6, so that the electric leakage condition can be avoided. The static contact 4 on the first wiring terminal 2 and the static contact on the second wiring terminal 3 are both electrically connected with a power line of the humidifier through a protection component, namely, the power line of the humidifier is connected with the electric heating tube 1 in series through the protection component.
As shown in fig. 2, the protection assembly includes a temperature sensing magnetic steel 7, a coil spring 8, a permanent magnet 9, a supporting plate 10, a moving contact 11 and a wire 12, one end of the coil spring 8 is fixedly connected to a top wall of the sealed chamber 6, the other end of the coil spring 8 is fixedly connected to the supporting plate 10, the temperature sensing magnetic steel 7 is fixedly installed on the top wall of the sealed chamber 6 and is sleeved in the coil spring 8, the permanent magnet 9 is fixedly installed on the supporting plate 10 and is sleeved in the coil spring 8, one end of the moving contact 11 is fixedly connected to the supporting plate 10, the moving contact 11 is located below the static contact 4, and at least a portion of the moving contact 11 faces the static contact 4. One end of the lead 12 is connected with the movable contact 11, and the other end of the lead 12 penetrates through the side wall of the sealed chamber 6, is electrically connected with a humidifier power supply circuit and is positioned outside the base 5.
In this embodiment, the curie temperature of the temperature sensitive magnetic steel 7 is greater than 100 degrees celsius and less than 120 degrees celsius. Of course, the temperature sensing magnetic steels 7 with different curie temperatures can be selected according to actual conditions to better protect the electric heating tube 1 from overheating, which is not described herein again.
When the humidifier works normally, namely at least part of the electric heating tube 1 is in contact with water in a water container of the humidifier and the temperature is lower than a limit value, the temperature of the temperature sensing magnetic steel 7 is lower than the Curie temperature of the temperature sensing magnetic steel 7, the temperature sensing magnetic steel 7 has magnetism, the temperature sensing magnetic steel 7 overcomes the elasticity of the spiral spring 8 and then is attracted with the permanent magnet 9, the moving contact 11 is in contact with the static contact 4, a circuit loop is formed between the electric heating tube 1 and a power supply of the humidifier, and the electric heating tube 1 generates heat.
When the electric heating tube 1 is not contacted with water in the water container of the humidifier and the temperature is higher than the limit value, the temperature of the electric heating tube 1 is transmitted to the temperature sensing magnetic steel 7 through the base 5, when the temperature of the temperature sensing magnetic steel 7 exceeds the Curie temperature, the magnetism of the temperature sensing magnetic steel is lost, the permanent magnet 9 is separated from the temperature sensing magnetic steel 7 under the elastic force action of the spiral spring 8, meanwhile, the static contact 4 is separated from the movable contact 11, the power supply of the electric heating tube 1 is disconnected, and the humidifier stops working.
When the humidifier is refilled with water, and the temperatures of the electric heating tube 1 and the temperature sensing magnetic steel 7 are reduced to be lower than the Curie temperature, the temperature sensing magnetic steel 7 and the permanent magnet 9 are attracted again, and the electric heating tube 1 can continue to work to heat water in the humidifier water container.
Because the temperature sensing magnetic steel 7, the permanent magnet 9 and the spiral spring 8 are used for carrying out overheat protection on the electric heating tube 1, a thermal fuse is not needed, the whole structure is simple, the overheat protection is convenient for the electric heating tube 1 of the humidifier, and the practicability is good.
Example two:
as shown in figure 1, the protection device for the humidifier electric heating tube 1 comprises the electric heating tube 1, wherein the electric heating tube 1 is at least partially inserted into a water container of the humidifier. The electric heating tube 1 comprises a first wiring end 2 and a second wiring end 3, static contacts 4 are fixedly connected to the first wiring end 2 and the second wiring end 3, and the protection device for the electric heating tube 1 of the humidifier further comprises a base 5 and a protection assembly. The base 5 has a sealed chamber 6 therein, which is made of an insulating and heat-conducting material, such as a heat-conducting ceramic. Therefore, the temperature of the electric heating tube 1 can be better transmitted to the temperature sensing magnetic steel 7, the insulation between the electric heating tube 1 and the base 5 can be ensured, and the electric leakage condition is prevented.
The protection component is arranged in the sealed cavity 6, and the first wiring terminal 2 and the second wiring terminal 3 are both positioned in the sealed cavity 6, so that the electric leakage condition can be avoided. The static contact 4 on the first wiring terminal 2 and the static contact on the second wiring terminal 3 are both electrically connected with a power line of the humidifier through a protection component, namely, the power line of the humidifier is connected with the electric heating tube 1 in series through the protection component.
As shown in fig. 2, the protection assembly includes a temperature sensing magnetic steel 7, a coil spring 8, a permanent magnet 9, a supporting plate 10, a moving contact 11 and a wire 12, one end of the coil spring 8 is fixedly connected to a top wall of the sealed chamber 6, the other end of the coil spring 8 is fixedly connected to the supporting plate 10, the temperature sensing magnetic steel 7 is fixedly installed on the top wall of the sealed chamber 6 and is sleeved in the coil spring 8, the permanent magnet 9 is fixedly installed on the supporting plate 10 and is sleeved in the coil spring 8, one end of the moving contact 11 is fixedly connected to the supporting plate 10, the moving contact 11 is located below the static contact 4, and at least a portion of the moving contact 11 faces the static contact 4. One end of the lead 12 is connected with the movable contact 11, and the other end of the lead 12 penetrates through the side wall of the sealed chamber 6, is electrically connected with a humidifier power supply circuit and is positioned outside the base 5.
In this embodiment, the curie temperature of the temperature sensitive magnetic steel 7 is greater than 100 degrees celsius and less than 120 degrees celsius. Of course, the temperature sensing magnetic steels 7 with different curie temperatures can be selected according to actual conditions to better protect the electric heating tube 1 from overheating, which is not described herein again.
When the humidifier works normally, namely at least part of the electric heating tube 1 is in contact with water in a water container of the humidifier and the temperature is lower than a limit value, the temperature of the temperature sensing magnetic steel 7 is lower than the Curie temperature of the temperature sensing magnetic steel 7, the temperature sensing magnetic steel 7 has magnetism, the temperature sensing magnetic steel 7 overcomes the elasticity of the spiral spring 8 and then is attracted with the permanent magnet 9, the moving contact 11 is in contact with the static contact 4, a circuit loop is formed between the electric heating tube 1 and a power supply of the humidifier, and the electric heating tube 1 generates heat.
When the electric heating tube 1 is not contacted with water in the water container of the humidifier and the temperature is higher than the limit value, the temperature of the electric heating tube 1 is transmitted to the temperature sensing magnetic steel 7 through the base 5, when the temperature of the temperature sensing magnetic steel 7 exceeds the Curie temperature, the magnetism of the temperature sensing magnetic steel is lost, the permanent magnet 9 is separated from the temperature sensing magnetic steel 7 under the elastic force action of the spiral spring 8, meanwhile, the static contact 4 is separated from the movable contact 11, the power supply of the electric heating tube 1 is disconnected, and the humidifier stops working.
When the humidifier is refilled with water, and the temperatures of the electric heating tube 1 and the temperature sensing magnetic steel 7 are reduced to be lower than the Curie temperature, the temperature sensing magnetic steel 7 and the permanent magnet 9 are attracted again, and the electric heating tube 1 can continue to work to heat water in the humidifier water container.
Because the temperature sensing magnetic steel 7, the permanent magnet 9 and the spiral spring 8 are used for carrying out overheat protection on the electric heating tube 1, a thermal fuse is not needed, the whole structure is simple, the overheat protection is convenient for the electric heating tube 1 of the humidifier, and the practicability is good.
In an embodiment, as shown in fig. 3, the protection assembly further includes two limiting posts 13 disposed in parallel, one end of each limiting post 13 is fixedly connected to the top wall of the sealed chamber 6, a sliding slot is disposed on the supporting plate 10, and the other end of each limiting post 13 passes through the sliding slot and is slidably connected to the supporting plate 10. The spiral spring 8, the temperature sensing magnetic steel 7 and the permanent magnet 9 are positioned between the two limiting columns 13.
Through setting up spacing post 13, permanent magnet 9 will reciprocate along spacing post 13, can inject moving contact 11's removal for can be better between moving contact 11 and the static contact 4 contact together.
Example three:
as shown in figure 1, the protection device for the humidifier electric heating tube 1 comprises the electric heating tube 1, wherein the electric heating tube 1 is at least partially inserted into a water container of the humidifier. The electric heating tube 1 comprises a first wiring end 2 and a second wiring end 3, static contacts 4 are fixedly connected to the first wiring end 2 and the second wiring end 3, and the protection device for the electric heating tube 1 of the humidifier further comprises a base 5 and a protection assembly. The base 5 has a sealed chamber 6 therein, which is made of an insulating and heat-conducting material, such as a heat-conducting ceramic. Therefore, the temperature of the electric heating tube 1 can be better transmitted to the temperature sensing magnetic steel 7, the insulation between the electric heating tube 1 and the base 5 can be ensured, and the electric leakage condition is prevented.
The protection component is arranged in the sealed cavity 6, and the first wiring terminal 2 and the second wiring terminal 3 are both positioned in the sealed cavity 6, so that the electric leakage condition can be avoided. The static contact 4 on the first wiring terminal 2 and the static contact on the second wiring terminal 3 are both electrically connected with a power line of the humidifier through a protection component, namely, the power line of the humidifier is connected with the electric heating tube 1 in series through the protection component.
As shown in fig. 2, the protection assembly includes a temperature sensing magnetic steel 7, a coil spring 8, a permanent magnet 9, a supporting plate 10, a moving contact 11 and a wire 12, one end of the coil spring 8 is fixedly connected to a top wall of the sealed chamber 6, the other end of the coil spring 8 is fixedly connected to the supporting plate 10, the temperature sensing magnetic steel 7 is fixedly installed on the top wall of the sealed chamber 6 and is sleeved in the coil spring 8, the permanent magnet 9 is fixedly installed on the supporting plate 10 and is sleeved in the coil spring 8, one end of the moving contact 11 is fixedly connected to the supporting plate 10, the moving contact 11 is located below the static contact 4, and at least a portion of the moving contact 11 faces the static contact 4. One end of the lead 12 is connected with the movable contact 11, and the other end of the lead 12 penetrates through the side wall of the sealed chamber 6, is electrically connected with a humidifier power supply circuit and is positioned outside the base 5.
In this embodiment, the curie temperature of the temperature sensitive magnetic steel 7 is greater than 100 degrees celsius and less than 120 degrees celsius. Of course, the temperature sensing magnetic steels 7 with different curie temperatures can be selected according to actual conditions to better protect the electric heating tube 1 from overheating, which is not described herein again.
When the humidifier works normally, namely at least part of the electric heating tube 1 is in contact with water in a water container of the humidifier and the temperature is lower than a limit value, the temperature of the temperature sensing magnetic steel 7 is lower than the Curie temperature of the temperature sensing magnetic steel 7, the temperature sensing magnetic steel 7 has magnetism, the temperature sensing magnetic steel 7 overcomes the elasticity of the spiral spring 8 and then is attracted with the permanent magnet 9, the moving contact 11 is in contact with the static contact 4, a circuit loop is formed between the electric heating tube 1 and a power supply of the humidifier, and the electric heating tube 1 generates heat.
When the electric heating tube 1 is not contacted with water in the water container of the humidifier and the temperature is higher than the limit value, the temperature of the electric heating tube 1 is transmitted to the temperature sensing magnetic steel 7 through the base 5, when the temperature of the temperature sensing magnetic steel 7 exceeds the Curie temperature, the magnetism of the temperature sensing magnetic steel is lost, the permanent magnet 9 is separated from the temperature sensing magnetic steel 7 under the elastic force action of the spiral spring 8, meanwhile, the static contact 4 is separated from the movable contact 11, the power supply of the electric heating tube 1 is disconnected, and the humidifier stops working.
When the humidifier is refilled with water, and the temperatures of the electric heating tube 1 and the temperature sensing magnetic steel 7 are reduced to be lower than the Curie temperature, the temperature sensing magnetic steel 7 and the permanent magnet 9 are attracted again, and the electric heating tube 1 can continue to work to heat water in the humidifier water container.
Because the temperature sensing magnetic steel 7, the permanent magnet 9 and the spiral spring 8 are used for carrying out overheat protection on the electric heating tube 1, a thermal fuse is not needed, the whole structure is simple, the overheat protection is convenient for the electric heating tube 1 of the humidifier, and the practicability is good.
In an embodiment, as shown in fig. 3, the protection assembly further includes two limiting posts 13 disposed in parallel, one end of each limiting post 13 is fixedly connected to the top wall of the sealed chamber 6, a sliding slot is disposed on the supporting plate 10, and the other end of each limiting post 13 passes through the sliding slot and is slidably connected to the supporting plate 10. The spiral spring 8, the temperature sensing magnetic steel 7 and the permanent magnet 9 are positioned between the two limiting columns 13.
Through setting up spacing post 13, permanent magnet 9 will reciprocate along spacing post 13, can inject moving contact 11's removal for can be better between moving contact 11 and the static contact 4 contact together.
As shown in fig. 1, 2 and 3, hemispherical protrusions 14 are disposed on the movable contact 11 and the stationary contact 4. The hemispherical protrusion 14 is provided to make good contact between the movable contact 11 and the stationary contact 4.
To sum up, the utility model discloses a protection device for humidifier electric heating pipe, its gained beneficial technological effect is: because the temperature sensing magnetic steel, the permanent magnet and the spiral spring are used for carrying out overheat protection on the electric heating tube, a thermal fuse body is not needed, the whole structure is simple, the electric heating tube of the humidifier is convenient to carry out overheat protection, and the humidifier has good practicability.
The above examples are to be understood as merely illustrative of the present invention and not as limiting the scope of the invention. After reading the description of the present invention, the skilled person can make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope of the present invention defined by the claims.
Claims (6)
1. A protection device for an electric heating tube of a humidifier is characterized in that the protection device for the electric heating tube of the humidifier further comprises a base and a protection assembly, a sealing chamber is arranged in the base, the protection assembly is installed in the sealing chamber, the first wiring end and the second wiring end are both located in the sealing chamber, the fixed contact on the first wiring end and the fixed contact on the second wiring end are both electrically connected with a power line of the humidifier through the protection assembly, the protection assembly comprises a temperature sensing magnetic steel, a spiral spring, a permanent magnet, a supporting plate, a moving contact and a conducting wire, one end of the spiral spring is fixedly connected with the top wall of the sealing chamber, and the other end of the spiral spring is fixedly connected with the supporting plate, the temperature sensing magnetic steel is fixedly installed on the top wall of the sealed cavity and sleeved in the spiral spring, the permanent magnet is fixedly installed on the supporting plate and sleeved in the spiral spring, one end of the moving contact is fixedly connected with the supporting plate, the moving contact is located below the fixed contact, one end of the wire is connected with the moving contact, and the other end of the wire penetrates through the side wall of the sealed cavity and is located on the outer side of the base.
2. The protection device for the electric heating tube of the humidifier according to claim 1, wherein the protection assembly further comprises two limiting posts arranged in parallel, one end of each limiting post is fixedly connected with the top wall of the sealing chamber, the other end of each limiting post is slidably connected with the supporting plate, and the coil spring, the temperature sensing magnetic steel and the permanent magnet are located between the two limiting posts.
3. The protection device for the electric heating tube of the humidifier according to claim 2, wherein a sliding groove is formed in the supporting plate, and the other end of the limiting column penetrates through the sliding groove and then is connected with the supporting plate in a sliding mode.
4. The protection device for an electric heating tube of a humidifier as claimed in claim 3, wherein the moving contact and the stationary contact are each provided with a hemispherical protrusion.
5. The protection device for the electric heating tube of the humidifier according to claim 4, wherein the Curie temperature of the temperature sensing magnetic steel is greater than 100 ℃ and less than 120 ℃.
6. The protection device for the electric heating tube of the humidifier according to claim 5, wherein the base is made of a heat-conducting ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021816412.XU CN213395685U (en) | 2020-08-26 | 2020-08-26 | Protection device for electric heating tube of humidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021816412.XU CN213395685U (en) | 2020-08-26 | 2020-08-26 | Protection device for electric heating tube of humidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213395685U true CN213395685U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021816412.XU Active CN213395685U (en) | 2020-08-26 | 2020-08-26 | Protection device for electric heating tube of humidifier |
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|---|---|
| CN (1) | CN213395685U (en) |
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2020
- 2020-08-26 CN CN202021816412.XU patent/CN213395685U/en active Active
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