JP2018512898A - Integrated sensor - Google Patents

Abstract

A base (1) is provided, a sensing member is provided in the base (1), and an upper cover (14) that operates independently from the upper end of the base (1) is provided. The base (1) and the upper cover An integrated sensor in which a compression spring (16) is provided between (14) and the upper cover (14) contacts and interlocks with a sensing member in the base (1) in the process of applying pressure downward. The sensor has a reasonable structure, and when the temperature of the inner pot (62) rises to the setting value for preventing emptying, the contact piece A (33) and the contact piece B (34) are turned off, and the main control board circuit When the contact piece B (34) cools down, the circuit is connected again, and when the temperature rises beyond the emptying limit, the temperature detection plate (43) is heated. The fusing function is activated, the fusing core (41) is directly melted at a high temperature, and the heating circuit is forcibly cut to protect it. The temperature detection sheet (37) and the insulating holder (22) serve as environmental response members. Reduce the problem of lead disconnection at the spot welds of the lead wire and extend the overall service life.

Description

The present invention relates to the technical field of temperature control sensors, and more particularly to integrated sensors.

Chinese Patent CN2014227661Y includes a cup-shaped mounting portion, a microswitch and a switch support plate, the microswitch is installed in the cup-shaped mounting portion, the cup-shaped mounting portion is inserted through the switch support plate, and the cup-shaped mounting portion and the switch A return spring is provided between the support plates, the switch support plate is fixed to the mounting bottom plate, and the entire cup mounting part moves downward during use so that the heating circuit in the micro switch and the mounting bottom plate can be connected. There is disclosed a microswitch type air blow prevention device in which a thermal unit is connected in series and a heating circuit is cut off when a cup-shaped mounting portion is released.

With such a structure, each operating member and the mounting plate are fixedly connected as a unit, and under the driving force of the inner pot, the vertical operation is generated to detect the state that there is no pan. There is a problem that contact failure at each node is likely to occur by bending or extending the lead wire of the actuating member a plurality of times.

It is an object of the present invention to provide an integrated sensor having a reasonable structure, a high integration level, a stable and high reliability, and a long service life against defects and drawbacks of the prior art.

In order to achieve the above object, the present invention employs the following technical solution.

An integrated sensor according to the present invention includes a base, a sensing member is provided in the base, an upper cover that operates independently from the upper end of the base is provided, and a compression spring is provided between the base and the upper cover. The upper cover is brought into contact with and interlocked with the in-base sensing member in the step of applying the downward pressure.

Further, an annular mounting plate is provided on the outer edge of the lower end opening of the base, and an insulating cap having a lower end fixedly connected to the mounting plate is provided outside the base, and the compression spring is interposed between the insulating cap and the base. The upper cover penetrates the upper end opening of the insulating cap and is movably connected thereto. The upper end and the lower end of the compression spring are installed in contact with the upper cover and the mounting plate, respectively.

Further, a limiting ring is provided in the upper end opening of the insulating cap, and a sealing ring having an outer edge diameter larger than the inner edge diameter of the limiting ring is provided on the outer edge of the lower end opening of the upper cover. It is installed in contact with the mounting plate.

Further, a fixed plate having a notch on one side is provided in the upper end opening of the base, and the sensing member includes a thermal unit that is inserted into the notch of the fixed plate and is movably connected to the base, A limit block is provided to limit the process of applying pressure to the fixed plate under the top cover.

Further, the thermal unit includes a thermistor and an insulating holder, the thermistor is connected to the upper end of the insulating holder, the lead wire on the thermistor penetrates the insulating holder, and the upper end of the insulating holder has a fixed plate. The thermistor, limit block, and upper cover are installed so as to fit through the notch, and a leaf spring is provided between the lower end and the base.

Further, in the base, a partition plate that divides the internal space of the base into an upper chamber and a lower chamber is provided in a lateral direction, a wall plate is provided in the partition plate, and the insulating holder is movable up and down on one side of the wall plate. In the upper chamber of the base, in the wall plate, a support column facing the insulating holder is provided in the lateral direction, the leaf spring is installed in the supporting column, and the upper end and the lower end are respectively connected to the lower end of the insulating holder and the partition plate. It is installed in contact.

Further, an upper limit plate is provided at the upper end opening of the base at the notch of the fixed plate, and the upper end of the insulating holder is in contact with and connected to the upper limit plate.

In addition, a mounting hole is formed at the upper end of the insulating holder, a structural hole having a diameter smaller than the mounting hole is provided below the mounting hole, and a groove penetrating the mounting hole and the structural hole is formed on the front side surface of the insulating holder. The lower end of the thermistor is fitted in the mounting hole, and the lead wire is inserted into the structural hole.

In addition, the sensing member further includes a micro switch fixed in the base and installed to operate in conjunction with the thermal unit.

Further, the microswitch includes a substrate, fins, pins 2A, pins 2B, contact pieces C, and tension springs,
The lower ends of the pins 2A and 2B pass through the bottom plate of the substrate and are fixedly connected to the substrate, and the upper ends of the pins 2A and 2B are disposed so as to face each other. The fixed end of the contact piece C is locked to the upper end of the pin 2A, the contact piece C is installed in the lateral direction, and the movable end is provided below the folding part,
The fins are installed laterally and one end is hinged to the substrate. Both ends of the tension spring are connected to the other end of the fin and the contact piece C, respectively, and the lower end of the insulating holder is in contact with the other end of the fin. ing.

Further, the substrate is fixedly installed in the lower chamber of the base, and the lower end of the insulating holder passes through the partition plate and is in contact with the fin.

In addition, the sensing member further includes an overheat blackout device, the overheat blackout device is provided with a thermal fusing device connected in parallel thereto, and the overheat blackout device and the thermal fusing device penetrate the fixing plate and the upper cover, respectively. Are installed correspondingly.

Further, the overheat blackout device includes a pin 1A, a pin 1B, a contact piece A, a contact piece B, and a ceramic lever. The upper ends of the pin 1A and the pin 1B are provided in an upper chamber of the base between the fixed plate and the partition plate, and the pin 1A The lower end of the pin 1B penetrates the partition plate and is fixedly connected to the partition plate,
The fixed end of the contact piece A is connected to the upper end of the pin 1A, the fixed end of the contact piece B is connected to the upper end of the pin 1B, and the movable end of the contact piece A is fitted with the movable end of the contact piece B. Installed,
The ceramic lever is inserted on the fixed plate, and the lower end is installed in contact with the movable end of the contact piece B, and the upper end is installed by fitting with the upper cover.

Further, the thermal fusing device includes a fusing core made of thermoplastic plastic, the fixing plate is provided with a fusing hole through which the fusing core is inserted, and the fusing core is installed with its upper end fitted to the upper cover,
A fusing spring is provided between the lower end of the fusing core and the partition plate, and a circuit breaker is provided between the lower end of the fusing core and the fusing spring to be fitted with the overheat power interruption device.

Further, the circuit breaker includes a fork that has one end fixedly connected to the upper end of the fusing spring and the other end abutting above the movable end of the contact piece A.

Further, a reduced-diameter groove smaller than its outer edge diameter is provided in the upper part of the fusing core.

Furthermore, a temperature detection plate is provided at the upper end of the fusing core, which is movably connected to the fixed plate and fitted with the upper cover.

Further, a temperature detection sheet is provided between the fixed plate and the upper cover, and an elastic sheet is connected to the temperature detection sheet and the fixed plate, and the temperature detection sheet is fitted with the upper cover, the overheat power interruption device, and the thermal fusing device, respectively. Installed.

Furthermore, the elastic sheet is installed as a “U” -shaped structure in a horizontal direction, and the lower side of the elastic sheet is fixedly connected to the fixing plate, and the upper side of the temperature detection sheet and the elastic sheet is inclined. The warped ends of the temperature detection sheets are connected to the upper cover, the overheat power interruption device, and the thermal fusing device, respectively.

Further, a locking groove is formed in the fixing plate, a bend insertion plate is provided on the lower side of the elastic sheet, and a lower end of the bend insertion plate is inserted into the locking groove to fix the elastic sheet to the fixing plate and connect it. To do.

Furthermore, the warp end of the temperature detection sheet is provided above the ceramic lever and the temperature detection plate, and the warp end of the temperature detection sheet is provided below the upper cover.

Furthermore, a liquid heater provided with the integrated sensor is provided.

The beneficial effects of the present invention are as follows. The present invention has a reasonable structure, puts the inner pan in use and presses the upper cover, and the upper cover moves downward after coming into contact with the thermistor by lowering the pressure, and the insulating holder interlocks the microswitch. A pan presence signal is output. At this time, the temperature detection sheet comes into contact with the ceramic lever and the temperature detection plate under the drive of the upper cover to start temperature detection, and the stroke limit plate controls the lower pressure limit position of the upper cover. When the temperature of the inner pan rises to the setting value to prevent emptying, the thermistor cuts the main control board circuit to realize overheat protection.If the temperature further rises due to failure of the main control circuit, When the temperature of the contact piece decreases, the circuit is connected again, and when the temperature rises above the air blow prevention limit, the temperature detection plate activates the thermal fusing function, Fusing core due to high temperature Directly melts and forcibly cuts and protects the heating circuit, and the temperature detection sheet and insulation holder as an environmentally responsive member reduces the problem of lead disconnection at the spot welds of the lead, thereby reducing the overall Extend the service life of.

It is a decomposition schematic diagram of the whole structure of the present invention. It is a structure decomposition | disassembly schematic diagram of the sensing member of this invention. It is a schematic diagram of the internal assembly structure of this invention. It is an upper surface schematic diagram of the base three-dimensional structure of this invention. It is a trigger schematic diagram of the initial state of the present invention. It is a structure expansion schematic diagram of the A part in FIG.

In the drawing
1, base; 11, mounting plate; 12, insulating cap; 13, restriction ring;
14, upper cover; 15, seal ring; 16, compression spring; 17, fixing plate;
18, partition plate; 21, thermistor; 22, insulating holder; 23, mounting hole;
24, structural hole; 25, gap; 26, leaf spring; 31, pin 1A;
32, pin 1B; 33, contact piece A; 34, contact piece B; 35, ceramic lever;
36, elastic sheet; 37, temperature detection sheet; 41, fusing core; 42, fusing spring;
43, temperature detection plate; 44, fork; 51, fin; 52, pin 2A;
53, pin 2B; 54, fold; 55, contact piece C; 56, tension spring;
57, substrate; 61, electric heating member; 62, inner pot; 63, heating pallet;
171, locking groove; 181, wall plate; 182, support column; 183, fusing hole;
184, upper limit plate; 191, limit block; 361, bend insertion plate; 411, reduced diameter groove.

The present invention will be further described below with reference to the drawings.

As shown in FIGS. 1-6, the integrated sensor according to the present invention includes a base 1, a sensing member is provided in the base 1, and an upper cover 14 that operates independently with respect to the upper end of the base 1. A compression spring 16 is provided between the base 1 and the upper cover 14, and the upper cover 14 contacts and interlocks with a sensing member in the base 1 in the step of applying downward pressure. As shown in FIG. 5, the base 1 is fixedly mounted in the electric heating member 61, the sensing member is electrically connected to the main control board of the electric heating member 61, and the upper cover 14 moves up and down to the heating pallet 63. The upper cover 14 is installed without contacting the sensing member in the base 1 in an initial state. The inner pan 62 is placed in the electric heating member 61 to apply downward pressure to the upper cover 14, and the upper cover 14 abuts against the sensing member to detect the presence of the pan using the sensing member, and the heating pallet 63 generates heat. Conducted to the sensing member through the upper cover 14, and the sensing member monitors the temperature rise of the inner pot and realizes overheat protection by the main control board.

As shown in FIG. 1, an annular mounting plate 11 is provided on the outer edge of the lower end opening of the base 1, and an insulating cap 12 having a lower end fixedly connected to the mounting plate 11 on the outer side of the base 1 is provided and compressed. The spring 16 is provided between the insulating cap 12 and the base 1, and the upper cover 14 passes through the upper end opening of the insulating cap 12 and is movably connected thereto. The upper end and the lower end of the compression spring 16 are respectively connected to the upper cover. 14 and the mounting plate 11 are in contact with each other. The upper cover 14 moves up and down along the inner edge of the insulating cap 12, thereby avoiding the problem of trigger failure due to lateral displacement. Assembling efficiency is improved by providing an adapter structure on the outer edge and bottom surface of the mounting plate 11, and the base 1 and the sensing member are fixedly mounted by connecting the mounting plate 11 and the electric heating member 61.

A limiting ring 13 is provided in the upper end opening of the insulating cap 12, and a seal ring 15 having an outer edge diameter larger than the inner edge diameter of the limiting ring 13 is provided on the outer edge of the lower end opening of the upper cover 14. Are installed in contact with the seal ring 15 and the mounting plate 11, respectively, and the compression spring 16 provides a buffer when the upper cover 14 is pressed down and provides a support force when the upper cover 14 is ejected. The limiting ring 13 and the seal ring 15 are The upper limit stroke of the upper cover 14 is limited by fitting.

A fixing plate 17 having a notch on one side is provided in the upper end opening of the base 1, and the sensing member includes a thermal unit that is inserted into the notch of the fixing plate 17 and is movably connected to the base 1. A limit block 191 for restricting the process of applying downward pressure to the upper cover 14 is provided on the fixed plate 17. The process of applying downward pressure to the upper cover 14 includes an approach stroke and a trigger stroke. The upper cover 14 is installed without contacting the sensing member in the base 1 in the initial state, and during the lower pressure of the upper cover 14, When the trigger stroke starts when the downward pressure is applied to the upper cover 13 while being in contact with the thermal unit, the thermal unit is moved downward in conjunction with the upper cover 13, and after the trigger stroke is completed, the upper cover 14 contacts the limit block 191. At this time, the thermal unit enters the temperature control protection mode.

The thermal unit includes a thermistor 21 and an insulating holder 22. The thermistor 21 is connected to the upper end of the insulating holder 22, and a lead wire on the thermistor 21 passes through the insulating holder 22. A mounting hole 23 is formed at the upper end of the insulating holder 22, a structural hole 24 having a diameter smaller than the mounting hole 23 is provided below the mounting hole 23, and the mounting hole 23 and the structural hole 24 are formed on the front side surface of the insulating holder 22, respectively. A through-groove 25 is opened, the lower end of the thermistor 21 is fitted into the mounting hole 23, and the lead wire of the thermistor 21 is inserted into the structural hole 24. The thermistor 21 can be quickly assembled by the fitting structure with respect to the mounting hole 23. When the lead wire of the thermistor 21 is penetrated into the structure hole 24, a failure occurs in the thermistor 21 or the lead wire. , Improve the efficiency of replacement and maintenance.

The upper end of the insulating holder 22 passes through the notch of the fixing plate 17 so that the thermistor 21, the limit block 191 and the upper cover 14 are fitted, and a leaf is provided between the lower end of the insulating holder 22 and the base 1. A spring 26 is provided. In the base 1, a partition plate 18 that partitions the internal space of the base 1 into an upper chamber and a lower chamber is provided in the lateral direction, a wall plate 181 is provided in the partition plate 18, and the insulating holder 22 is movable up and down. A support column 182 that is installed in the upper chamber of the base 1 on one side of the 181 and is opposed to the insulating holder 22 in the wall plate 181 is provided in the lateral direction, and the leaf spring 26 is fitted in the support column 182 and has an upper end. The lower ends are respectively placed in contact with the lower end of the insulating holder 22 and the partition plate 18. An upper limit plate 184 is provided at the upper end opening of the base 1 at the notch of the fixed plate 17, and the upper end of the insulating holder 22 is in contact with and connected to the upper limit plate 184. The leaf spring 26 provides the insulating holder 22 with a downward shock-absorbing force and a supporting force when it is raised. A front / rear restricting separator for the insulating holder 22 is formed on the inner wall of the base 1 at the front and rear ends of the partition plate 18, and the insulating holder 22 can move up and down in the base 1, so that downward pressure is applied to the upper cover 14. The close contact between the thermistor 22 and the upper cover 14 is maintained to avoid the risk that the sensor will fail due to heat conduction disconnection or that the overheat protection will be disabled.

The sensing member further includes a micro switch that is fixed in the base 1 and is installed to be interlocked with the thermal unit. The upper cover 14 applies downward pressure to the insulating holder 22 in the trigger stroke, and a propulsion lever is provided at the lower end of the insulating holder 22, and the lower end of the propulsion lever abuts on the microswitch to output a signal with a pan.

The microswitch includes a substrate 57, fins 51, pins 2A52, pins 2B53, contact pieces C55, and tension springs 56. The lower ends of the pins 2A52 and 2B53 pass through the bottom plate of the substrate 57 and are fixed to the substrate 57, respectively. Connected, the pin 2A52 and the pin 2B53 are installed so that the upper ends thereof are opposed to each other, a folding portion 54 is provided in the lateral direction of the upper end of the pin 2B53, and the fixed end of the contact piece C55 is locked to the upper end of the pin 2A52, The contact piece C55 is installed in the horizontal direction, and the movable end is provided below the folding portion 54. The fin 51 is installed in the horizontal direction and one end is hinged to the substrate 57, and both ends of the tension spring 56 are connected. Are connected to the other end of the fin 51 and the contact piece C55, and the lower end of the insulating holder 22 is in contact with the other end of the fin 51. The substrate 57 is fixedly installed in the lower chamber of the base 1, and the lower end of the insulating holder 22 penetrates the partition plate 18 and is in contact with the fins 51.

As shown in FIG. 2, the pin 2A52 and the pin 2B53 constitute a two-stage terminal, the movable end of the contact piece C55 approaches the folding part 54 to constitute a contact switch, and the contact piece C55 and the folding part 54 face each other. Contact points for improving the stability of electrical connection are provided on any of the surfaces. When the downward pressure is applied until the upper cover 14 enters the trigger stroke, the insulating holder 22 propels the fin 51 to rotate downward, and the contact piece C55 is flipped up and down by the action of the tension spring 56, and the contact piece The movable end of C55 is switched to contact or cutting with the folding part 54, and a pan presence signal is output from the two-stage terminal of the microswitch. Conversely, when the upper cover 14 recovers, the action of the tension spring 56 causes The fin 51 rotates upward so that the movable end of the contact piece C55 and the folded portion 54 are switched to a contact or cut state, and a panless signal is output from the two-stage terminal of the microswitch.

The sensing member further includes an overheat blackout device, the overheat blackout device is provided with a thermal fusing device connected in parallel thereto, and the overheat blackout device and the thermal fusing device penetrate the fixing plate and the upper cover 14, respectively. Correspondingly installed.

The overheat blackout device includes a pin 1A31, a pin 1B32, a contact piece A33, a contact piece B34, and a ceramic lever 35. The lower ends of the pins 1A31 and 1B32 pass through the partition plate 18 and are fixedly connected to the partition plate 18. The fixed end of the contact piece A33 is connected to the upper end of the pin 1A31, and the fixed end of the contact piece B34. Is connected to the upper end of the pin 1B32, the movable end of the contact piece A33 is fitted with the movable end of the contact piece B34, the ceramic lever 35 is inserted on the fixed plate 17, and the lower end is in contact with it. It is installed in contact with the movable end of the piece B34, and the upper end is installed by fitting with the upper cover 14.

As shown in FIG. 2, the movable ends of the contact piece A33 and the contact piece B34 provided at different heights constitute an operation switch mechanism in the vertical direction, and the contact piece A33 and the contact piece B34 are blocked in the initial state. In addition, a trigger mechanism connected to the contact piece A33 is provided on the fixed plate 17, and the trigger mechanism will be specifically described later. When the upper cover 14 enters the contact stroke, the trigger mechanism is triggered to deform the contact piece A33. When the upper cover 14 comes into contact with the limit block 191 to end the stroke, the trigger mechanism turns the contact piece A33 into the contact piece B34. The upper cover 14 is in contact with the ceramic lever 35 and the micro switch outputs a signal with a pan, so that the heating circuit of the main control board to which the pins 1A31 and 1B32 are connected communicates. The heating pallet 63 starts to operate and heats the inner pot 62. The temperature rise of the inner pot 62 is conducted to the contact piece B34 via the upper cover 14 and the ceramic lever 35, and the temperature of the contact piece B34 rises to the deformation temperature. When the upper cover 14 is lifted, the contact piece A33 and the contact piece B34 are turned off to cut the heating circuit of the main control board, and the heating pallet 63 According to stop the heating.

The thermal fusing device includes a fusing core 41 made of thermoplastic plastic. The fixing plate 17 has a fusing hole 183 through which the fusing core 41 passes, and the fusing core 41 is fitted with the upper cover 14 at the upper end. A fusing spring 42 is provided between the lower end and the partition plate 18, and a circuit breaker is provided between the lower end of the fusing core 41 and the fusing spring 42 so as to be fitted to the overheat power interruption device. The breaker includes a fork 44 having one end fixedly connected to the upper end of the fusing spring 42 and the other end abutting above the movable end of the contact piece A33.

As described above, the trigger mechanism of the overheating power interruption device is also the fusing core 41, thereby realizing the parallel connection protection function of the overheating power interruption device and the thermal fusing device using the overheating fusing property of the fusing core 41. When the upper cover 14 enters the trigger stroke, the upper cover 14 is driven so as to apply a downward pressure along the fusing hole 183 to the fusing core 41, and the fusing spring 42 applies a buffering force and a rising support force to the fusing core 41. The fusing spring 42 is pressed and contracted by the fusing core 41, the circuit breaker at the upper end of the fusing spring 42 deforms the contact piece A33, and the movable end of the contact piece A33 contacts the contact piece B34 downward. Communicate and activate the protection function of the thermal shutdown device. When the temperature of the inner pot 62 rises excessively, the temperature conducted from the upper cover 14 to the fusing core 14 exceeds its thermal fusing value, the fusing core 14 is melted, and the fusing spring 42 is stretched upward and recovered. At the same time, the circuit breaker rises accordingly, deforms the contact piece A33, and disconnects the contact piece B34 again.

In the upper part of the fused core 41, a reduced diameter groove 411 smaller than the outer edge diameter of the melted core 41 is provided. When the temperature of the fusing core 41 increases until it exceeds the thermal fusing value, the reduced diameter groove 411 is quickly fused by heat to improve the overheat protection response, and the response time of the thermal fusing device becomes longer due to the rapid temperature rise. To prevent the risk of destruction or fire of the entire electric heating member 61.

At the upper end of the fusing core 41, a temperature detection plate 43 is provided which is movably connected to the fixed plate 17 and fitted with the upper cover 14. The temperature detection plate 43 limits the ascending limit position of the fusing core 41. In order to improve the buffering force and the recovery support force of the fusing spring 42 when assembled, the fusing spring 42 in the initial state has a certain amount of compression. The fusing core 41 is assembled by the temperature detection plate 43 so as to be vertically movable in the fusing hole 183.

A temperature detection sheet 37 is provided between the fixed plate 17 and the upper cover 14, and an elastic sheet 36 is connected to the temperature detection sheet 37 and the fixed plate 17, and the temperature detection sheet 37 includes the upper cover 14, an overheat power interruption device, and It is installed by fitting with a thermal fusing device. As shown in FIG. 3, the upper cover 14 is brought into contact with the temperature detection sheet 37 when entering the approach stroke, so that the thermistor 21 and the temperature detection sheet 37 are interlocked so as to enter the trigger stroke. The process is completed when it comes into contact with 191. At that time, the upper cover 14 comes into full contact with the temperature detection sheet 37, and the temperature detection sheet 37 comes into contact with the temperature detection plate 43 and the ceramic lever 35 to conduct the temperature rise. . The temperature detection sheet 37 and the elastic sheet 36 improve the trigger accuracy and heat conduction efficiency of the upper cover 14.

The elastic sheet 36 is installed as a “U” -shaped structure in a horizontal direction, the lower side of the elastic sheet 36 is fixedly connected to the fixing plate 17, and the upper side of the temperature detection sheet 37 and the elastic sheet 36 is inclined. The warp ends of the temperature detection sheet 37 are fitted and installed with the upper cover 14, the overheat power interruption device, and the thermal fusing device, respectively. The warp end of the temperature detection sheet 37 is provided above the ceramic lever 35 and the temperature detection plate 43, and the warp end of the temperature detection sheet 37 is provided below the upper cover 14.

The fixing plate 17 is provided with a locking groove 171, a bend insertion plate 361 is provided on the lower side of the elastic sheet 36, and the lower end of the bend insertion plate 361 is inserted into the locking groove 171 to fix the elastic sheet 36 to the fixing plate. 17 is fixed and connected. By fitting and connecting the bend insertion plate 361 and the locking groove 171, the attachment efficiency and height adjustment efficiency of the elastic sheet 36 and the temperature detection sheet 37 can be improved.

The liquid heater using the integrated sensor includes a rice cooker, a slow cooker, an electric pressure cooker, and the like.

The above is a preferred embodiment of the present invention, and any equivalent changes or modifications made based on the combinations, features and principles described in the scope of the patent application of the present invention belong to the scope of the patent application of the present invention.

Claims (22)

An integrated sensor including a base (1) and having a sensing member provided in the base (1), and an upper cover (14) that operates independently from the upper end of the base (1). A compression spring (16) is provided between the base (1) and the upper cover (14), and the upper cover (14) abuts on a sensing member in the base (1) in the process of applying pressure downward. An integrated sensor characterized in that An annular mounting plate (11) is provided on the outer edge of the lower end opening of the base (1), and an insulating cap (12) having a lower end fixed to the mounting plate (11) and connected to the outside of the base (1) is provided. The compression spring (16) is provided between the insulating cap (12) and the base (1), and the upper cover (14) passes through the upper end opening of the insulating cap (12) and is movablely connected thereto. The integrated sensor according to claim 1, wherein the upper and lower ends of the compression spring (16) are placed in contact with the upper cover (14) and the mounting plate (11), respectively. A limiting ring (13) is provided in the upper end opening of the insulating cap (12), and a seal ring (15) having an outer edge diameter larger than the inner edge diameter of the limiting ring (13) is provided on the outer edge of the lower end opening of the upper cover (14). The integrated sensor according to claim 2, wherein the compression sensor (16) is installed such that the upper end and the lower end of the compression spring (16) are in contact with the seal ring (15) and the mounting plate (11), respectively. A fixed plate (17) having a notch on one side is provided in the upper end of the base (1), and the sensing member is inserted into the notch of the fixed plate (17) and is movably connected to the base (1). 2. A limit block (191) comprising a thermal unit that is provided and is provided with a limit block (191) for limiting the process of applying pressure to the fixed plate (17) under the upper cover (14). Integrated sensor. The thermal unit includes a thermistor (21) and an insulating holder (22), the thermistor (21) is connected to the upper end of the insulating holder (22), and the lead wire on the thermistor (21) is connected to the insulating holder ( 22)
The insulating holder (22) is installed so that the thermistor (21), the limit block (191), and the upper cover (14) are fitted with each other by having the upper end passing through the notch of the fixing plate (17). 5. The integrated sensor according to claim 4, wherein a leaf spring (26) is provided between the base and the base (1). In the base (1), a partition plate (18) for partitioning the internal space of the base (1) into an upper chamber and a lower chamber is provided in the lateral direction, and a wall plate (181) is provided in the partition plate (18). The insulating holder (22) is installed in the upper chamber of the base (1) on one side of the wall plate (181) so as to be movable up and down,
In the wall plate (181), a support column (182) facing the insulating holder (22) is provided in the lateral direction, a leaf spring (26) is provided on the support column (182), and the upper and lower ends are insulated. 6. The integrated sensor according to claim 5, wherein the integrated sensor is installed in contact with the lower end of the holder (22) and the partition plate (18). An upper limit plate (184) is provided at the upper end of the base (1) at the notch of the fixed plate (17), and the upper end of the insulating holder (22) is in contact with and connected to the upper limit plate (184). The integrated sensor according to claim 6. A mounting hole (23) is opened at the upper end of the insulating holder (22), and a structural hole (24) having a smaller diameter than the mounting hole (23) is provided below the mounting hole (23). Grooves (25) penetrating the mounting hole (23) and the structural hole (24) are formed in the front side surface, and the lower end of the thermistor (21) is fitted in the mounting hole (23) and the thermistor (21). The integrated sensor according to claim 5, wherein the lead wire is inserted into the structural hole (24). 5. The integrated sensor according to claim 4, wherein the sensing member further includes a micro switch fixed in the base (1) and installed to interlock with the thermal unit. The microswitch includes a substrate (57), a fin (51), a pin 2A (52), a pin 2B (53), a contact piece C (55) and a tension spring (56),
The lower ends of the pins 2A (52) and 2B (53) pass through the bottom plate of the substrate (57) and are fixedly connected to the substrate (57), and the upper ends of the pins 2A (52) and 2B (53). Are arranged so as to face each other, and a folding portion (54) is provided in the lateral direction of the upper end of the pin 2B (53), and the fixed end of the contact piece C (55) is locked to the upper end of the pin 2A (52). The contact piece C (55) is installed in the lateral direction and the movable end is provided below the folding part (54).
The fin (51) is installed laterally and one end is hinged to the substrate (57), and both ends of the tension spring (56) are connected to the other end of the fin (51) and the contact piece C (55), respectively. The integrated sensor according to claim 9, wherein the lower end of the insulating holder (22) is in contact with the other end of the fin (51). The substrate (57) is fixedly installed in the lower chamber of the base (1), and the lower end of the insulating holder (22) passes through the partition plate (18) and is in contact with the fin (51). The integrated sensor according to claim 10. The sensing member further includes an overheat blackout device, the overheat blackout device is provided with a thermal fusing device connected in parallel thereto, and the overheat blackout device and the thermal fusing device penetrate the fixing plate and the upper cover (14), respectively. The integrated sensor according to claim 4, wherein the integrated sensor is installed correspondingly. The overheat blackout device includes a pin 1A (31), a pin 1B (32), a contact piece A (33), a contact piece B (34) and a ceramic lever (35). The pin 1A (31) and the pin 1B (32) Is provided in the upper chamber of the base (1) between the fixed plate (17) and the partition plate (18), and the lower ends of the pins 1A (31) and 1B (32) penetrate the partition plate (18), respectively. And fixedly connected to the partition plate (18),
The fixed end of the contact piece A (33) is connected to the upper end of the pin 1A (31), the fixed end of the contact piece B (34) is connected to the upper end of the pin 1B (32), and the contact piece A (33) The movable end is installed so as to be fitted with the movable end of the contact piece B (34),
The ceramic lever (35) is inserted on the fixed plate (17), and the lower end is installed in contact with the movable end of the contact piece B (34), and the upper end is fitted to the upper cover (14). The integrated sensor according to claim 12, wherein the integrated sensor is installed. The thermal fusing device includes a fusing core (41) made of thermoplastic plastic. The fixing plate (17) has a fusing hole (183) through which the fusing core (41) is inserted, and the fusing core (41) The upper end is fitted with the upper cover (14),
A fusing spring (42) is provided between the lower end of the fusing core (41) and the partition plate (18), and is fitted to the overheat power interruption device between the lower end of the fusing core (41) and the fusing spring (42). The integrated sensor according to claim 12, further comprising a circuit breaker. The circuit breaker includes a fork (44) having one end fixedly connected to the upper end of the fusing spring (42) and the other end abutting above the movable end of the contact piece A (33). The integrated sensor according to claim 14. 15. The integrated sensor according to claim 14, wherein a diameter-reduced groove (411) smaller than an outer edge diameter of the melted core (41) is provided at an upper portion. A temperature detection plate (43) that is movably connected to the fixed plate (17) and fitted with the upper cover (14) is provided at the upper end of the fusing core (41). The integrated sensor according to claim 14. A temperature detection sheet (37) is provided between the fixing plate (17) and the upper cover (14), and an elastic sheet (36) is connected to the temperature detection sheet (37) and the fixing plate (17), so that the temperature detection is performed. 13. The integrated sensor according to claim 12, wherein the sheet (37) is fitted and installed with the upper cover (14), the overheat power interruption device and the thermal fusing device, respectively. The elastic sheet (36) is installed as a “U” -shaped structure in the horizontal direction, and the lower side of the elastic sheet (36) is fixedly connected to the fixing plate (17), and the temperature detection sheet (37) The upper side of the elastic sheet (36) is connected so as to incline, and the warped ends of the temperature detection sheet (37) are fitted and installed with the upper cover (14), the overheat blackout device and the thermal fusing device, respectively. The integrated sensor according to claim 18. A locking groove (171) is opened in the fixing plate (17), a bend insertion plate (361) is provided on the lower side of the elastic sheet (36), and the lower end of the bend insertion plate (361) is the locking groove ( The integrated sensor according to claim 19, wherein the elastic sheet (36) is fixedly connected to the fixing plate (17) by being inserted into the 171). The warp end of the temperature detection sheet (37) is provided above the ceramic lever (35) and the temperature detection plate (43), and the warp end of the temperature detection sheet (37) is provided below the upper cover (14). 20. The integrated sensor according to claim 19, wherein the integrated sensor is used. A liquid heater comprising the integrated sensor according to any one of claims 1 to 7 and 9 to 21.