CN211719899U

CN211719899U - Integrated temperature-sensing safety control assembly

Info

Publication number: CN211719899U
Application number: CN202020336874.5U
Authority: CN
Inventors: 刘颖
Original assignee: Zhongshan Zhitao Electric Appliance Co ltd
Current assignee: Zhongshan Zhitao Electric Appliance Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-10-20
Anticipated expiration: 2030-03-17

Abstract

The utility model provides an integrate temperature sensing safety control subassembly, wherein, including casing and symmetry setting first electric conductor and the second electric conductor in the casing, the both ends of first electric conductor and second electric conductor all stretch out the outside of casing, the position that corresponds with first electric conductor on the first terminal surface of casing is equipped with the first temperature sensing switch that can reset automatically that is used for controlling first electric conductor on/off, the position that corresponds with the second electric conductor on the first terminal surface of casing is equipped with the second temperature sensing switch that can not resettable that is used for controlling second electric conductor on/off, or the position that corresponds with the second electric conductor on the first terminal surface of casing is equipped with the third temperature sensing switch that can reset manually that is used for controlling second electric conductor on/off, the temperature sensing threshold value of first temperature sensing switch is less than second temperature sensing switch/third temperature sensing switch's temperature sensing threshold value. The utility model discloses can simplify the wiring of container bottom for installation convenient operation, and can reduce the damaged adhesion of each other of wire and take place the emergence that the short circuit is dangerous.

Description

Integrated temperature-sensing safety control assembly

Technical Field

The utility model relates to a small household electrical appliances technical field, more specifically relates to a temperature sensing safety control subassembly integrates.

Background

Along with the improvement of living standard of people, liquid heating containers such as electric heating water boiling bottles, health preserving kettles and the like are more and more widely used in daily life of people. The liquid heating containers are all provided with a heating component at the bottom of the container, and then the heating component is controlled by an electric control component to heat the liquid in the container. In order to meet the requirement of safety regulations, a plurality of temperature-sensing safety switches are required to be arranged at the bottom of the container, so that the circuit connection between the heating assembly and the electric control assembly can be disconnected when the electric control assembly fails to control and the temperature of the heating assembly at the bottom of the container is abnormal, and the danger is avoided. In the existing liquid heating containers, the electric control assembly, the heating assembly and the multi-channel temperature-sensing safety switches are separately arranged at the bottom of the container and are connected through wires, so that the wiring at the bottom of the container is complex, the installation and the operation are inconvenient, and the danger of short circuit caused by mutual adhesion of the damaged wires is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the wiring of its bottom of above-mentioned current liquid heating container more complicated, installation operation is inconvenient, and the damaged adhesion of each other of wire takes place the defect of short circuit easily appears, provides a temperature sensing safety control subassembly integrates. The utility model discloses simple structure, convenient to use can simplify the wiring of container bottom for installation convenient operation, and can reduce the damaged adhesion of each other of wire and take place the emergence of short circuit danger.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an integrate temperature sensing safety control subassembly, wherein, is in including casing and symmetry setting first electric conductor and second electric conductor in the casing, the both ends of first electric conductor and second electric conductor all stretch out the outside of casing, on the first terminal surface of casing with the position that first electric conductor corresponds is equipped with and is used for controlling but the automatic re-setting's of first electric conductor on/off circuit first temperature sensing switch, on the first terminal surface of casing with the position that the second electric conductor corresponds is equipped with and is used for control the second temperature sensing switch that can not resettable of second electric conductor on/off circuit, the temperature sensing threshold value of first temperature sensing switch is less than the temperature sensing threshold value of second temperature sensing switch. The integrated temperature-sensing safety control assembly is connected between a heating assembly and an electric control assembly of a liquid heating container when in use. The heating assembly is generally composed of a heating disc and a heating pipe, the heating pipe is tightly attached to the bottom surface of the heating disc, when the integrated temperature-sensing safety control assembly is used, a first end face provided with a first temperature-sensing switch and a second temperature-sensing switch is also tightly attached to the bottom surface of the heating disc, and the integrated temperature-sensing safety control assembly and the heating pipe are fixed on the bottom surface of the heating disc and are relatively fixed in position, so that one end of a first conductor is tightly attached to one pole of the heating pipe and contacted with the other pole of the heating pipe, and the electric connection between the heating pipe and the integrated temperature-sensing safety control assembly is realized, and two wires are omitted; the other end of the first conductor and the other end of the second conductor can be respectively connected with two poles of an electric control assembly of the liquid heating container through leads. Because first temperature-sensing switch and second temperature-sensing switch directly set up on the first terminal surface of the casing of the temperature-sensing safety control subassembly that integrates, two temperature-sensing switches here can save several wires again. Therefore, the wiring of the bottom of the liquid heater is greatly simplified, and the installation and operation of all parts of the bottom of the liquid heater are convenient. When the liquid heating device works, the heating assembly at the bottom of the liquid heating container is started and stopped by the electric control assembly according to the temperature value detected by the temperature sensor at the bottom of the liquid heating container, namely when the electric control assembly is not in problem, the first temperature sensing switch and the second temperature sensing switch can not act and are in a standby state. Once the problem appears in the automatically controlled subassembly, can not let it stop when heating element should stop, so the heating pipe will continue work, and the temperature of dish that generates heat will continuously rise, and when the temperature of dish that generates heat rose to the temperature sensing threshold value of first temperature-sensing switch, first temperature-sensing switch will move the route of cutting off first electric conductor for the heating pipe outage avoids taking place danger. If the electric control assembly and the first temperature sensing switch are both in failure, the second temperature sensing switch is arranged, the principle of the second temperature sensing switch is similar to that of the first temperature sensing switch, when the temperature of the heating disc rises to the temperature sensing threshold value of the second temperature sensing switch, the second temperature sensing switch can act to cut off the passage of the second electric conductor, so that the heating pipe is powered off, and danger is avoided. Thus, the liquid heating container is equivalently provided with three safety switches, and the danger can be basically and completely avoided.

The first temperature sensing switch is automatically resettable, that is, when the temperature rises to the temperature sensing threshold of the first temperature sensing switch, the first temperature sensing switch will operate to disconnect the path of the first conductor, and when the temperature drops below the temperature sensing threshold again, the first temperature sensing switch will automatically reset to reconnect the path of the first conductor. The second temperature sensitive switch is not resettable, i.e. once the second temperature sensitive switch acts to cut off the passage of the second electrical conductor, it will not automatically recover and must be repaired. Therefore, when the first temperature-sensing switch acts, the problem of the electric control assembly is shown, the electric control assembly is only maintained, and the first temperature-sensing switch can automatically reset. When the second temperature-sensing switch is operated, it indicates that the electric control component and the first temperature-sensing switch are all in trouble, and the electric control component, the first temperature-sensing switch and the second temperature-sensing switch all need to be maintained or replaced, but the probability of the trouble is very low.

Furthermore, the first electric conductor comprises a first conductive metal sheet and a first conductive elastic sheet which are fixed on the inner wall of the shell, one end of the first conductive metal sheet and one end of the first conductive elastic sheet both extend out of the shell, the other end of the first conductive metal sheet and the other end of the first conductive elastic sheet are both arranged inside the shell, a first contact and a second contact are respectively arranged at the other end of the first conductive metal sheet and the other end of the first conductive elastic sheet, the first contact is in contact with the second contact, the first conductive elastic sheet is in a natural state, and the first temperature sensing switch is connected with the position, close to the second contact, of the first conductive elastic sheet. Like this, when the dish temperature that generates heat rises to the temperature sensing threshold value of first temperature switch, first temperature switch will move and push away first electrically conductive shell fragment, make first contact and second contact part, then the route of first electric conductor has just been broken off, first electrically conductive shell fragment has taken place to warp this moment, be in the energy storage state, when the dish temperature that generates heat reduces to the temperature sensing threshold value that is less than first temperature switch, first temperature switch will automatic re-setting, first electrically conductive shell fragment will rebound under its self elastic force effect, make first contact and second contact once more, then the route of first electric conductor has just switched on again.

Furthermore, the first temperature sensing switch comprises a first connecting column and a self-resetting temperature sensing piece, one end of the first connecting column is fixedly connected with the position, close to the second contact, of the first conductive elastic piece, the self-resetting temperature sensing piece is fixed to the first end face of the shell, the position, corresponding to the first connecting column, of the first end face of the shell is provided with a first concave position for bending and deforming the first deforming end, and the other end of the first connecting column extends out of the first concave position of the first end face and is opposite to the first deforming end of the self-resetting temperature sensing piece. When the temperature of the self-resetting temperature sensing piece is lower than the temperature sensing threshold value of the self-resetting temperature sensing piece, the first deformation end of the self-resetting temperature sensing piece faces one side, when the temperature rises to the temperature sensing threshold value of the self-resetting temperature sensing piece, the first deformation end of the self-resetting temperature sensing piece can bend and deform towards the opposite side, and when the temperature is reduced again, the first deformation end of the self-resetting temperature sensing piece can automatically reset. In the utility model, when the temperature of the self-resetting temperature sensing piece reaches the temperature sensing threshold value, the first deformation end of the self-resetting temperature sensing piece bends and deforms towards the side of the first concave position and extrudes the first connecting column, and the first conductive elastic piece is extruded and deformed through the first connecting column, so that the first contact and the second contact are separated; when the temperature is reduced to be lower than the temperature sensing threshold value again, the first deformation end of the first conductive elastic sheet deforms and resets towards the side opposite to the first concave position, the first conductive elastic sheet resets under the action of the elastic force of the first conductive elastic sheet, the first contact and the second contact are contacted again, and then the passage of the first conductive body is conducted again.

Furthermore, the second electric conductor comprises a second conductive metal sheet and a second conductive elastic sheet which are fixed on the inner wall of the shell, one ends of the second conductive metal sheet and the second conductive elastic sheet extend out of the shell, the other ends of the second conductive metal sheet and the second conductive elastic sheet are arranged inside the shell, a third contact and a fourth contact are arranged at the other ends of the second conductive metal sheet and the second conductive elastic sheet respectively, the second temperature sensing switch is connected with the position, close to the fourth contact, of the second conductive elastic sheet, the second conductive elastic sheet is extruded and deformed to enable the third contact to be in contact with the fourth contact, and the second conductive elastic sheet is in an energy storage state. Like this, when the temperature of the dish that generates heat rises to the temperature sensing threshold value of second temperature-sensing switch, second temperature-sensing switch will loosen the electrically conductive shell fragment of second, the electrically conductive shell fragment of second pops open under its self elastic force effect for third contact and fourth contact separate, then the route of second electric conductor has just been broken off, the electrically conductive shell fragment of second takes place to warp this moment the back and is in natural state, it can not rebound again automatically under the effect of not having the external force and makes third contact and fourth contact, because second temperature-sensing switch is not resettable, so the route disconnection of second electric conductor just can not switch on automatically again.

Furthermore, the second temperature sensing switch is a cylindrical thermal link, one end of the cylindrical thermal link is fixedly connected with the second conductive elastic sheet at a position close to the fourth contact, and the other end of the cylindrical thermal link is fixedly connected with the first end face of the shell. The cylindrical thermal link extrudes and deforms the second conductive elastic sheet to enable the third contact to be in contact with the fourth contact, when the temperature reaches the temperature sensing threshold value of the cylindrical thermal link, the cylindrical thermal link is melted and broken, the second conductive elastic sheet loses extrusion force and can be rebounded to a natural state, and the passage of the second electric conductor is broken.

In another preferred embodiment, a third temperature sensitive switch which is manually resettable and controls on/off of the second conductor is provided at a position corresponding to the second conductor on the first end surface of the housing, and a temperature sensitive threshold of the first temperature sensitive switch is lower than a temperature sensitive threshold of the third temperature sensitive switch. The third temperature sensitive switch has the same function as the second temperature sensitive switch, and unlike the third temperature sensitive switch, which can be manually reset, the second temperature sensitive switch is not resettable. Therefore, under the condition that the electric control assembly and the first temperature sensing switch are invalid, if the second temperature sensing switch is adopted, the second temperature sensing switch needs to be replaced during maintenance, and if the third temperature sensing switch is adopted, the third temperature sensing switch does not need to be replaced, and the electric control assembly and the first temperature sensing switch can be manually reset, so that the maintenance is convenient.

Furthermore, the second electric conductor comprises a second conductive metal sheet and a second conductive elastic sheet which are fixed on the inner wall of the shell, one end of the second conductive metal sheet and one end of the second conductive elastic sheet both extend out of the shell, the other end of the second conductive metal sheet and the other end of the second conductive elastic sheet are both arranged inside the shell, a third contact and a fourth contact are respectively arranged at the other end of the second conductive metal sheet and the other end of the second conductive elastic sheet, the third contact is in contact with the fourth contact, the second conductive elastic sheet is in a natural state, and the third temperature-sensing switch is connected with the position, close to the fourth contact, of the second conductive elastic sheet. Therefore, when the temperature of the heating plate rises to the temperature sensing threshold value of the third temperature sensing switch, the third temperature sensing switch can act to jack the second conductive elastic sheet open, so that the third contact and the fourth contact are separated, the passage of the second conductor is disconnected, and the second conductive elastic sheet is deformed and is in an energy storage state; however, the third temperature-sensing switch can only be reset manually and cannot be reset automatically, so that when the temperature of the heating plate is reduced to be lower than the temperature-sensing threshold value of the third temperature-sensing switch, the third temperature-sensing switch cannot be reset automatically, external force must be applied manually to reset the third temperature-sensing switch, the second conductive elastic sheet can rebound under the action of the elastic force of the second conductive elastic sheet, the third contact and the fourth contact are contacted again, and the passage of the second conductor is conducted again.

Furthermore, the third temperature-sensing switch comprises a second connecting column and a non-self-resetting temperature-sensing sheet, one end of the second connecting column is fixedly connected with the position, close to the fourth contact, of the second conductive elastic sheet, the non-self-resetting temperature-sensing sheet is fixed to the position, corresponding to the second connecting column, on the first end face of the shell, a second concave position for bending and deforming the second deformation end is arranged at the position, corresponding to the second deformation end of the non-self-resetting temperature-sensing sheet, on the first end face, and the other end of the second connecting column extends out of the second concave position of the first end face and is right opposite to the second deformation end of the non-self-resetting temperature-sensing sheet. In this case, the third temperature sensitive switch has a structure substantially the same as that of the first temperature sensitive switch, and the only difference is that the third temperature sensitive switch employs a non-resettable temperature sensing piece, so that once the third temperature sensitive switch is actuated, the machine needs to be removed for maintenance, and the non-resettable temperature sensing piece is restored to the original position by applying an external force.

Furthermore, for more convenient maintenance, a manual reset device can be arranged on the third temperature-sensitive switch, so that the third temperature-sensitive switch can be manually reset without disassembling the machine. The manual reset device has the following specific structure: the position that corresponds with the second spliced pole on the second terminal surface of casing is equipped with the through-hole, the ejector pin is worn to be equipped with in the through-hole activity, ejector pin one end stretch into the casing inside and with on the second conductive elastic sheet with the fixed position connection that the second spliced pole is connected, the ejector pin other end stretches out the outside certain length of casing. The other end of the ejector rod can be arranged to extend out of the bottom of the liquid heating container, so that the third temperature sensing switch can be manually reset by pressing the ejector rod on the outer side of the bottom of the liquid heating container.

Furthermore, one end of each of the first conductor and the second conductor extends out of the housing from the first side surface of the housing, so that one end of each of the first conductor and the second conductor can be respectively in close contact with two electrodes of the heating tube. The other ends of the first conductor and the second conductor extend out of the shell from the second end face of the shell, and wiring holes are formed in the other ends of the first conductor and the second conductor. Generally, the electric control component of the liquid heating container is arranged below the heating component, the other ends of the first conductor and the second conductor extend out of the second end face, and the wiring holes are formed, so that wiring between the electric control component and the first conductor can be more convenient, and the length of a lead can be shortened.

Furthermore, a support frame for mounting the NTC temperature sensing probe is further arranged on the outer wall of the shell. The bottom of the liquid heating container must be provided with an NTC temperature sensing probe to detect the temperature so that the temperature can be returned to the electric control assembly to be used as the basis for controlling the work of the heating assembly, the NTC temperature sensing probe can be more conveniently and fixedly installed by arranging the supporting frame for installing the NTC temperature sensing probe on the shell of the integrated temperature sensing safety control assembly, and the NTC temperature sensing probe does not need to be independently and fixedly installed.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an integration temperature sensing safety control subassembly has realized the heating element of liquid heating container and the connection of automatically controlled subassembly through first electric conductor and second electric conductor to integrated first temperature sensing switch and second/three temperature sensing switch respectively on first electric conductor and second electric conductor, the temperature sensing switch has been saved, many connecting wires between heating element and the automatically controlled subassembly, the wiring setting of liquid heating container bottom has been simplified greatly, make the unit mount of its bottom also become simple, and can reduce the damaged adhesion of each other of wire and take place the emergence of short circuit danger.

Drawings

Fig. 1 is a schematic view of the overall structure of the first end surface of embodiment 1 of the present invention.

Fig. 2 is a schematic view of the entire structure of the second end surface of embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of a first conductor and a first temperature-sensitive switch in embodiment 1 of the present invention.

Fig. 4 is a schematic structural view of a second conductor and a second temperature-sensitive switch according to embodiment 1 of the present invention.

Fig. 5 is a schematic view of embodiment 1 of the present invention connected to a heating plate and a heating pipe.

Fig. 6 is a schematic view of the entire structure of the first end surface side according to embodiment 2 of the present invention.

Fig. 7 is a schematic structural view of a second conductor and a third temperature sensitive switch according to embodiment 2 of the present invention.

Fig. 8 is a schematic structural diagram of the second end surface of the integrated temperature-sensitive safety control module in embodiment 2 of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1

As shown in fig. 1 and 2, an integrated temperature-sensing safety control assembly includes a housing 1, and a first conductor 2 and a second conductor 3 symmetrically disposed in the housing 1, wherein both ends of the first conductor 2 and the second conductor 3 extend out of the housing 1, a first temperature-sensing switch 4 capable of automatically resetting and used for controlling on/off of the first conductor 2 is disposed on a first end surface 11 of the housing 1 corresponding to the first conductor 2, a second temperature-sensing switch 5 not capable of resetting and used for controlling on/off of the second conductor 3 is disposed on a first end surface 11 of the housing 1 corresponding to the second conductor 3, and a temperature-sensing threshold of the first temperature-sensing switch 4 is lower than a temperature-sensing threshold of the second temperature-sensing switch 5. The integrated temperature-sensing safety control assembly is connected between a heating assembly and an electric control assembly of a liquid heating container when in use. The heating assembly is generally composed of a heating disc 17 and a heating pipe 18, the heating pipe 18 is tightly attached to the bottom surface of the heating disc 17, when the integrated temperature-sensing safety control assembly is used, a first end surface 11 provided with a first temperature-sensing switch 4 and a second temperature-sensing switch 5 is also tightly attached to the bottom surface of the heating disc 17, and as the integrated temperature-sensing safety control assembly and the heating pipe 18 are both fixed to the bottom surface of the heating disc 17 and are fixed relatively, one end of a first conductor 2 can be in tight contact with one pole of the heating pipe 18, and one end of a second conductor 3 is in tight contact with the other pole of the heating pipe 18, so that the electric connection between the heating pipe 18 and the integrated temperature-sensing safety control assembly is realized, as shown in fig. 5, two conducting wires are omitted; the other end of the first conductor 2 and the other end of the second conductor 3 can be respectively connected with two poles of an electric control assembly of the liquid heating container through leads. Since the first temperature-sensitive switch 4 and the second temperature-sensitive switch 5 are directly disposed on the first end surface 11 of the housing 1 of the integrated temperature-sensitive safety control assembly, the two temperature-sensitive switches can omit several wires. Therefore, the wiring of the bottom of the liquid heater is greatly simplified, and the installation and operation of all parts of the bottom of the liquid heater are convenient. When the liquid heating container works, the heating assembly at the bottom of the liquid heating container is started and stopped by the electric control assembly according to the temperature value detected by the temperature sensor at the bottom of the liquid heating container, namely when the electric control assembly is out of order, the first temperature sensing switch 4 and the second temperature sensing switch 5 can not act and are in a standby state. Once the electric control component has a problem, the heating component cannot be stopped when the heating component is stopped, so that the heating pipe 18 can continuously work, the temperature of the heating disc 17 can continuously rise, and when the temperature of the heating disc 17 rises to the temperature sensing threshold value of the first temperature sensing switch 4, the first temperature sensing switch 4 can act to cut off the passage of the first electric conductor 2, so that the heating pipe 18 is powered off, and danger is avoided. If the electric control component and the first temperature sensing switch 4 are both in failure, the second temperature sensing switch 5 is also arranged, the principle of the second temperature sensing switch is similar to that of the first temperature sensing switch 4, when the temperature of the heating plate 17 rises to the temperature sensing threshold value of the second temperature sensing switch 5, the second temperature sensing switch 5 can act to cut off the passage of the second electric conductor 3, so that the heating pipe 18 is powered off, and the danger is avoided. Thus, the liquid heating container is equivalently provided with three safety switches, and the danger can be basically and completely avoided.

In this embodiment, since the first temperature sensitive switch 4 is automatically resettable, that is, when the temperature rises to the temperature sensitive threshold of the first temperature sensitive switch 4, the first temperature sensitive switch 4 operates to disconnect the path of the first conductor 2, and when the temperature drops below the temperature sensitive threshold again, the first temperature sensitive switch 4 automatically resets to reconnect the path of the first conductor 2. The second temperature sensitive switch 5 is not resettable, that is, when the second temperature sensitive switch 5 is actuated to cut off the passage of the second conductor 3, it will not automatically recover and must be maintained. Therefore, when the first temperature-sensitive switch 4 is actuated, it is indicated that the electric control component has a problem, and only the electric control component needs to be maintained, so that the first temperature-sensitive switch 4 can be automatically reset. When the second temperature sensitive switch 5 is operated, it means that the electric control component and the first temperature sensitive switch 4 are all in trouble, and the electric control component, the first temperature sensitive switch 4 and the second temperature sensitive switch 5 are all in maintenance or replacement, but the probability of the trouble is very low.

As shown in fig. 3, the first conductor 2 includes a first conductive metal sheet 21 and a first conductive elastic sheet 22 fixed on the inner wall of the housing 1, one end of the first conductive metal sheet 21 and one end of the first conductive elastic sheet 22 both extend out of the housing 1, the other end of the first conductive metal sheet 21 and the other end of the first conductive elastic sheet 22 both are disposed inside the housing 1, the other end of the first conductive metal sheet 21 and the other end of the first conductive elastic sheet 22 are respectively provided with a first contact 7 and a second contact 8, the first contact 7 and the second contact 8 are in contact, the first conductive elastic sheet 22 is in a natural state, and the first temperature-sensitive switch 4 is connected with the first conductive elastic sheet 22 at a position close to the second contact 8. Like this, when the temperature of dish 17 that generates heat rises to the temperature sensing threshold value of first temperature-sensitive switch 4, first temperature-sensitive switch 4 will move and open first electrically conductive shell fragment 22, make first contact 7 and second contact 8 part, then the route of first electric conductor 2 has just been broken off, first electrically conductive shell fragment 22 has taken place to warp this moment, be in the energy storage state, when dish 17 that generates heat reduces to being less than the temperature sensing threshold value of first temperature-sensitive switch 4, first temperature-sensitive switch 4 will automatic re-setting, first electrically conductive shell fragment 22 will rebound under its self elastic force, make first contact 7 and second contact 8 contact once more, then the route of first electric conductor 2 has just switched on again.

As shown in fig. 3, the first temperature-sensitive switch 4 includes a first connection post 41 and a self-resettable temperature-sensitive sheet 42, one end of the first connection post 41 is fixedly connected to the first conductive elastic sheet 22 near the second contact 8, the self-resettable temperature-sensitive sheet 42 is fixed to the first end surface 11 of the housing 1 at a position corresponding to the first connection post 41, a first recess 111 for bending and deforming the first deformable end 421 is disposed at a position corresponding to the first deformable end 421 of the self-resettable temperature-sensitive sheet 42 on the first end surface 11, and the other end of the first connection post 41 extends into the first recess 111 of the first end surface 11 and faces the first deformable end 421 of the self-resettable temperature-sensitive sheet 42. When the temperature of the self-resetting temperature sensing sheet 42 is lower than the temperature sensing threshold value, the first deformation end 421 faces one side, when the temperature rises to the temperature sensing threshold value, the first deformation end 421 bends and deforms towards the opposite side, and when the temperature is reduced again, the first deformation end 421 can automatically reset. In the utility model, when the temperature of the self-resetting temperature sensing sheet 42 reaches the temperature sensing threshold value, the first deformation end 421 is bent and deformed toward the first concave 111 and presses the first connecting post 41, and the first conductive elastic sheet 22 is pressed and deformed by the first connecting post 41, so that the first contact 7 and the second contact 8 are separated; when the temperature drops below the temperature sensing threshold value again, the first deformed end 421 is deformed and reset toward the side opposite to the first concave 111, and the first conductive elastic piece 22 is also reset under the action of its own elastic force.

As shown in fig. 4, the second conductor 3 includes a second conductive metal sheet 31 and a second conductive elastic sheet 32 fixed on the inner wall of the housing 1, one end of the second conductive metal sheet 31 and one end of the second conductive elastic sheet 32 both extend out of the housing 1, the other end of the second conductive metal sheet 31 and the other end of the second conductive elastic sheet 32 both are disposed inside the housing 1, the other end of the second conductive metal sheet 31 and the other end of the second conductive elastic sheet 32 are respectively provided with a third contact 9 and a fourth contact 10, the second temperature-sensitive switch 5 is connected to the second conductive elastic sheet 32 at a position close to the fourth contact 10, the second conductive elastic sheet 32 is deformed by pressing so that the third contact 9 and the fourth contact 10 are in contact, and the second conductive elastic sheet 32 is in an energy storage state. Thus, when the temperature of the heating plate 17 rises to the temperature sensing threshold of the second temperature sensing switch 5, the second temperature sensing switch 5 will release the second conductive elastic sheet 32, the second conductive elastic sheet 32 bounces under the action of its own elastic force, so that the third contact 9 and the fourth contact 10 are separated, the path of the second electric conductor 3 is disconnected, at this time, the second conductive elastic sheet 32 is in a natural state after being deformed, the second electric conductor cannot automatically rebound to make the third contact 9 and the fourth contact 10 contact under the action of no external force, and the second temperature sensing switch 5 is not resettable, so that the path of the second electric conductor 3 is disconnected and cannot be automatically switched on.

As shown in fig. 4, the second temperature sensitive switch 5 is a cylindrical thermal link, one end of the cylindrical thermal link is fixedly connected to the second conductive elastic sheet 32 at a position close to the fourth contact 10, and the other end of the cylindrical thermal link is fixedly connected to the first end surface 11 of the housing 1. The second conductive elastic sheet 32 is extruded and deformed by the cylindrical thermal link body to enable the third contact 9 to be in contact with the fourth contact 10, when the temperature reaches the temperature sensing threshold value of the cylindrical thermal link body, the cylindrical thermal link body can be melted and broken, and the second conductive elastic sheet 32 can be bounced back to the natural state after losing the extrusion force.

As shown in fig. 1 and 2, one end of each of the first conductor 2 and the second conductor 3 extends out of the housing 1 from the first side 12 of the housing 1, so that the one end of each of the first conductor 2 and the second conductor 3 can be respectively and closely contacted with two poles of the heating pipe 18. The other ends of the first conductor 2 and the second conductor 3 extend out of the housing 1 from the second end face 13 of the housing 1, and the other ends of the first conductor 2 and the second conductor 3 are provided with wiring holes 14. Generally, the electric control component of the liquid heating container is arranged below the heating component, the other ends of the first conductor 2 and the second conductor 3 extend out of the second end face 13, and the wiring hole 14 is arranged, so that the wiring with the electric control component can be more convenient, and the length of a lead can be shortened.

As shown in fig. 1 and 2, a support frame 15 for mounting an NTC temperature sensing probe is further provided on an outer wall of the housing 1. The bottom of the liquid heating container must be provided with an NTC temperature sensing probe to detect the temperature so as to transmit the temperature back to the electric control assembly to be used as the basis for controlling the work of the heating assembly, the NTC temperature sensing probe can be more conveniently installed and fixed by arranging the supporting frame 15 for installing the NTC temperature sensing probe on the shell 1 of the integrated temperature sensing safety control assembly, and the NTC temperature sensing probe does not need to be independently installed and fixed.

Example 2

The present embodiment is similar to embodiment 1, and is different from embodiment 1 in that a third manually resettable temperature sensitive switch 6 for controlling on/off of the second conductor 3 is provided at a position corresponding to the second conductor 3 on the first end surface 11 of the housing 1, and a temperature sensitive threshold of the first temperature sensitive switch 4 is lower than a temperature sensitive threshold of the third temperature sensitive switch 6, as shown in fig. 6 and 7. The function of the third temperature-sensitive switch 6 is the same as that of the second temperature-sensitive switch 5, and unlike this, the third temperature-sensitive switch 6 is manually resettable, while the second temperature-sensitive switch 5 is not resettable. Thus, under the condition that the electric control assembly and the first temperature sensing switch 4 are both failed, if the second temperature sensing switch 5 is adopted, the second temperature sensing switch 5 needs to be replaced during maintenance, and if the third temperature sensing switch 6 is adopted, the third temperature sensing switch 6 does not need to be replaced, and the electric control assembly and the first temperature sensing switch are only manually reset, so that the maintenance is convenient.

As shown in fig. 7, the second conductor 3 includes a second conductive metal sheet 31 and a second conductive elastic sheet 32 fixed on the inner wall of the housing 1, one end of the second conductive metal sheet 31 and one end of the second conductive elastic sheet 32 both extend out of the housing 1, the other end of the second conductive metal sheet 31 and the other end of the second conductive elastic sheet 32 both are disposed inside the housing 1, and a third contact 9 and a fourth contact 10 are respectively disposed on the other end of the second conductive metal sheet 31 and the other end of the second conductive elastic sheet 32, the third contact 9 and the fourth contact 10 are in contact with each other, the second conductive elastic sheet 32 is in a natural state, and the third temperature sensitive switch 6 is connected to the second conductive elastic sheet 32 at a position close to the fourth contact 10. Thus, when the temperature of the heating plate 17 rises to the temperature sensing threshold of the third temperature sensing switch 6, the third temperature sensing switch 6 will act to push the second conductive elastic sheet 32 open, so that the third contact 9 and the fourth contact 10 are separated, the path of the second conductor 3 is disconnected, and at this time, the second conductive elastic sheet 32 is deformed and is in an energy storage state; however, since the third temperature sensitive switch 6 can only be manually reset and cannot be automatically reset, when the temperature of the heat generating plate 17 is lowered to be lower than the temperature sensitive threshold of the third temperature sensitive switch 6, the third temperature sensitive switch 6 cannot be automatically reset, and an external force must be manually applied to reset the third temperature sensitive switch 6, the second conductive elastic sheet 32 will rebound under the action of its own elastic force, so that the third contact 9 and the fourth contact 10 are contacted again, and then the path of the second conductor 3 is turned on again.

As shown in fig. 7, the third temperature-sensitive switch 6 includes a second connection post 61 and a non-self-resettable temperature-sensitive sheet 62, one end of the second connection post 61 is fixedly connected to the second conductive elastic sheet 32 at a position close to the fourth contact 10, the non-self-resettable temperature-sensitive sheet 62 is fixed to the first end surface 11 of the housing 1 at a position corresponding to the second connection post 61, a second concave portion 112 for bending and deforming the second deformable portion 621 is disposed at a position corresponding to the second deformable portion 621 of the non-self-resettable temperature-sensitive sheet 62 on the first end surface 11, and the other end of the second connection post 61 extends out of the second concave portion 112 of the first end surface 11 and is opposite to the second deformable portion 621 of the non-self-resettable temperature-sensitive sheet 62. In this case, the third temperature sensitive switch 6 has substantially the same structure as the first temperature sensitive switch 4, and the only difference is that the third temperature sensitive switch 6 employs the non-resettable temperature sensitive strip 62, so that once the third temperature sensitive switch 6 is actuated, the machine needs to be removed for maintenance, and the non-resettable temperature sensitive strip 62 is returned to its original position by applying an external force.

As shown in fig. 7 and 8, a manual reset means may be provided on the third temperature sensitive switch 6 for more convenient maintenance, so that the reset may be performed manually without disassembling the machine. The manual reset device has the following specific structure: a through hole 131 is formed in the second end face 13 of the shell 1 and corresponds to the second connecting column 61, a push rod 16 penetrates through the through hole 131, one end of the push rod 16 extends into the interior of the shell 1 and is fixedly connected with the second conductive elastic sheet 32 and the second connecting column 61, and the other end of the push rod 16 extends out of the shell 1 by a certain length. The other end of the top bar 16 can be extended to the outside of the bottom of the liquid heating container, so that the third temperature sensitive switch 6 can be manually reset by pressing the top bar 16 on the outside of the bottom of the liquid heating container.

The structure and operation principle of the other parts of this embodiment are the same as those of embodiment 1.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The integrated temperature-sensing safety control assembly is characterized by comprising a shell (1), a first electric conductor (2) and a second electric conductor (3) which are symmetrically arranged in the shell (1), wherein two ends of the first electric conductor (2) and the second electric conductor (3) extend out of the shell (1), a first temperature-sensing switch (4) which is used for controlling the on/off of the first electric conductor (2) and can reset automatically is arranged at a position, corresponding to the first electric conductor (2), on a first end face (11) of the shell (1), a second temperature-sensing switch (5) which is used for controlling the on/off of the second electric conductor (3) and is not resettable is arranged at a position, corresponding to the second electric conductor (3), on the first end face (11) of the shell (1), or a position, corresponding to the second electric conductor (3), on the first end face (11) of the shell (1) is used for controlling the second electric conductor (3) 3) And a third temperature sensitive switch (6) which is switched on/off and can be manually reset, wherein the temperature sensitive threshold value of the first temperature sensitive switch (4) is lower than the temperature sensitive threshold values of the second temperature sensitive switch (5)/the third temperature sensitive switch (6).

2. The integrated temperature-sensing safety control assembly according to claim 1, wherein the first conductor (2) comprises a first conductive metal sheet (21) and a first conductive elastic sheet (22) fixed on the inner wall of the shell (1), one end of each of the first conductive metal sheet (21) and the first conductive elastic sheet (22) extends out of the shell (1), the other ends of the first conductive metal sheet (21) and the first conductive elastic sheet (22) are arranged in the shell (1), and the other ends of the first conductive metal sheet (21) and the first conductive elastic sheet (22) are respectively provided with a first contact (7) and a second contact (8), the first contact (7) is contacted with the second contact (8), the first conductive elastic sheet (22) is in a natural state, the first temperature-sensing switch (4) is connected with the first conductive elastic sheet (22) at a position close to the second contact (8).

3. The integrated temperature-sensitive safety control assembly according to claim 2, wherein the first temperature-sensitive switch (4) comprises a first connecting post (41) and a self-resettable temperature-sensitive strip (42), one end of the first connecting post (41) is fixedly connected with the position of the first conductive elastic sheet (22) close to the second contact (8), the self-resetting temperature sensing sheet (42) is fixed on the first end surface (11) of the shell (1) at a position corresponding to the first connecting column (41), a first concave position (111) for bending and deforming the first deformation end (421) is arranged on the first end surface (11) corresponding to the first deformation end (421) of the self-resetting temperature sensing sheet (42), the other end of the first connecting column (41) extends into a first concave position (111) of the first end face (11) and is opposite to a first deformation end (421) of the self-resetting temperature sensing piece (42).

4. The integrated temperature-sensing safety control assembly according to claim 1 or 3, wherein the second conductor (3) comprises a second conductive metal sheet (31) and a second conductive elastic sheet (32) fixed on the inner wall of the housing (1), one end of each of the second conductive metal sheet (31) and the second conductive elastic sheet (32) extends out of the housing (1), the other end of each of the second conductive metal sheet (31) and the second conductive elastic sheet (32) is disposed inside the housing (1), the other end of each of the second conductive metal sheet (31) and the second conductive elastic sheet (32) is respectively provided with a third contact (9) and a fourth contact (10), the second temperature-sensing switch (5) is connected with the second conductive elastic sheet (32) at a position close to the fourth contact (10), and the second conductive elastic sheet (32) is extruded and deformed to enable the third contact (9) to be in contact with the fourth contact (10), the second conductive elastic sheet (32) is in an energy storage state.

5. The integrated temperature-sensing safety control assembly according to claim 4, wherein the second temperature-sensing switch (5) is a cylindrical thermal fuse, one end of the cylindrical thermal fuse is fixedly connected to the second conductive elastic sheet (32) at a position close to the fourth contact (10), and the other end of the cylindrical thermal fuse is fixedly connected to the first end surface (11) of the housing (1).

6. The integrated temperature-sensing safety control assembly according to claim 1 or 3, the second conductor (3) comprises a second conductive metal sheet (31) and a second conductive elastic sheet (32) which are fixed on the inner wall of the shell (1), one end of the second conductive metal sheet (31) and one end of the second conductive elastic sheet (32) extend out of the shell (1), the other ends of the second conductive metal sheet (31) and the second conductive elastic sheet (32) are arranged in the shell (1), and the other ends of the second conductive metal sheet (31) and the second conductive elastic sheet (32) are respectively provided with a third contact (9) and a fourth contact (10), the third contact (9) is contacted with the fourth contact (10), the second conductive elastic sheet (32) is in a natural state, the third temperature-sensing switch (6) is connected with the second conductive elastic sheet (32) at a position close to the fourth contact (10).

7. The integrated temperature-sensing safety control assembly according to claim 6, wherein the third temperature-sensing switch (6) comprises a second connection post (61) and a non-self-resettable temperature-sensing chip (62), one end of the second connecting column (61) is fixedly connected with the position of the second conductive elastic sheet (32) close to the fourth contact (10), the non-self-resetting temperature sensing sheet (62) is fixed on the first end surface (11) of the shell (1) at a position corresponding to the second connecting column (61), a second concave position (112) for bending and deforming the second deformation end (621) is arranged at the position, corresponding to the second deformation end (621) of the non-self-resetting temperature sensing piece (62), on the first end surface (11), the other end of the second connecting column (61) extends into a second concave position (112) of the first end surface (11) and is opposite to a second deformation end (621) of the non-self-resetting temperature sensing piece (62).

8. The integrated temperature-sensing safety control assembly according to claim 7, wherein a through hole (131) is formed in a position, corresponding to the second connecting column (61), on the second end face (13) of the housing (1), a push rod (16) is movably arranged in the through hole (131) in a penetrating manner, one end of the push rod (16) extends into the interior of the housing (1) and is fixedly connected with a position, connected with the second connecting column (61), on the second conductive elastic sheet (32), and the other end of the push rod (16) extends out of the housing (1) by a certain length.

9. The integrated temperature-sensing safety control assembly according to claim 1, wherein one end of each of the first conductor (2) and the second conductor (3) extends out of the housing (1) from the first side surface (12) of the housing (1), the other end of each of the first conductor (2) and the second conductor (3) extends out of the housing (1) from the second end surface (13) of the housing (1), and the other end of each of the first conductor (2) and the second conductor (3) is provided with a wire connecting hole (14).

10. The integrated temperature-sensing safety control assembly according to claim 1, wherein a support frame (15) for mounting an NTC temperature-sensing probe is further provided on the outer wall of the housing (1).