CN216667971U - Liquid heating device and liquid heating system - Google Patents
Liquid heating device and liquid heating system Download PDFInfo
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- CN216667971U CN216667971U CN202122710673.4U CN202122710673U CN216667971U CN 216667971 U CN216667971 U CN 216667971U CN 202122710673 U CN202122710673 U CN 202122710673U CN 216667971 U CN216667971 U CN 216667971U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The utility model discloses a liquid heating device and a liquid heating system, which comprise a shell, wherein the shell comprises a liquid inlet, a liquid outlet, a temperature detection port and a heating cavity which is respectively communicated with the liquid inlet, the liquid outlet and the temperature detection port, an electric heater for heating liquid in the heating cavity is arranged in the heating cavity, a temperature control module for controlling the electric heater to be closed according to whether the detected liquid heating temperature reaches a preset value is arranged on the temperature detection port, the temperature control module comprises a sudden-jump type temperature control switch and a heat conduction metal sheet, the heat conduction metal sheet is fixed at the temperature detection port and seals the temperature detection port, an induction part of the sudden-jump type temperature control switch is attached and fixed with the heat conduction metal sheet, and the sudden-jump type temperature control switch is connected with the electric heater. The kick type temperature control switch of the temperature control module is arranged, so that the electric heater can be controlled to be turned off when the water temperature in the heating cavity reaches the preset temperature of the kick type temperature control switch.
Description
Technical Field
The utility model relates to the technical field of liquid electric heating parts in water heaters, in particular to a liquid heating device and a liquid heating system.
Background
The water heater heats cold water in the heating cavity (13) through the electric heating pipe to form hot water and then outputs the hot water for a user to use, but the electric heating pipe is electrified and can be continuously heated in the heating process of the existing water heater, so that the electric heating pipe heats the water all the time, the heated water temperature is overhigh, the pressure in the heating cavity (13) is promoted to be overhigh, the heating cavity (13) is easy to burst open, serious safety is caused, and the user is scalded due to overhigh output water temperature.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a liquid heating apparatus and a liquid heating system designed to solve the above-mentioned technical disadvantages, and the present invention is specifically as follows.
The utility model discloses a liquid heating device, which comprises a shell, wherein the shell comprises a liquid inlet, a liquid outlet, a temperature detection port and a heating cavity which is respectively communicated with the liquid inlet, the liquid outlet and the temperature detection port, an electric heater for heating liquid in the heating cavity is arranged in the heating cavity, a temperature control module for controlling the electric heater to be closed according to whether the detected liquid heating temperature reaches a preset value is arranged on the temperature detection port, the temperature control module comprises a kick type temperature control switch and a heat conduction metal sheet, the heat conduction metal sheet is fixed at the temperature detection port and blocks the temperature detection port, an induction part of the kick type temperature control switch is attached to and fixed with the heat conduction metal sheet, and the kick type temperature control switch is connected with the electric heater.
Preferably, a sealing gasket is arranged between the opening edge of the temperature detection opening and the heat-conducting metal sheet.
Preferably, the sealing gasket comprises a sealing ring sheet, a plurality of positioning sleeves are arranged on the sealing ring sheet, a plurality of fixing sleeves are arranged on the periphery of the temperature detection port, the sealing ring sheet covers the position of the temperature detection port on the shell, inner holes of the sealing ring sheet correspond to the temperature detection port, the fixing sleeves are inserted into the positioning sleeves, the heat-conducting metal sheet is attached to the upper side face of the sealing ring sheet, a plurality of fixing holes corresponding to the positions of the positioning sleeves respectively are formed in the heat-conducting metal sheet, rear fixing bolts are inserted into the fixing holes, and screws of the fixing bolts are fixedly connected with the fixing sleeves through threads after penetrating through the positioning sleeves so as to be fixedly installed on the heat-conducting metal sheet.
Preferably, a liquid inlet pipeline is arranged at the liquid inlet, a pressure switch for controlling the electric heater to work is installed on the liquid inlet pipeline, and the pressure switch is connected with the electric heater.
Preferably, the pressure switch comprises a leather cup, a positioning plate, a fixed contact piece and an elastic piece, the liquid inlet pipeline comprises a pressure cavity, a partition body and a first cavity and a second cavity which are formed by the partition body in a partition mode, a first channel communicated with the first cavity and a second channel communicated with the second cavity are arranged on the pressure cavity, and a third channel communicated with the first cavity is arranged on the partition body; the locating plate is fixed in the pressure chamber top, and on the one end of fixed contact piece and the one end of shell fragment all were fixed in the locating plate, be provided with sunken on the locating plate, the other end of shell fragment and fixed contact piece's the other end all were located sunken, and the other end correspondence of shell fragment is located fixed contact piece's other end below, and the leather cup sets up in the pressure chamber, is provided with the cylinder on the leather cup, and the cylinder runs through the pressure chamber and contradicts with the other end bottom surface of shell fragment.
Preferably, the other end of the elastic sheet is fixed with a conductive column, and the column body penetrates through the pressure cavity and abuts against the lower end of the conductive column.
Preferably, the second cavity comprises a first liquid outlet cavity and a second liquid outlet cavity which are separated from each other, the third channel is communicated with the second liquid outlet cavity, and the second channel is communicated with the first liquid outlet cavity.
Preferably, the shell comprises a shell and an end cover which is covered and fixed at the opening of the shell, and the liquid outlet is arranged on the end cover.
Preferably, a liquid outlet pipeline is arranged at a liquid outlet of the end cover, a first buffer sleeve is arranged at a port of the liquid outlet pipeline, a second buffer sleeve is fixed on the first buffer sleeve, a first through hole communicated with the liquid inlet pipeline is formed in the first buffer sleeve, a second through hole is formed in the first buffer sleeve, a first spiral ring arranged around the first through hole is arranged in the first buffer sleeve, a second spiral ring arranged around the second through hole is arranged in the second buffer sleeve, the first spiral ring and the second spiral ring are arranged correspondingly, a silica gel gasket is clamped between the first spiral ring and the second spiral ring, and a water through hole connected with a spiral channel on the first spiral ring and a spiral channel on the second spiral ring is formed in the silica gel gasket.
As another aspect, a liquid heating system includes a power line, a temperature display screen, a thermal protector, and a liquid heating apparatus as described above, wherein the kick type temperature controlled switch, the pressure switch, and the electric heater of the liquid heating apparatus are connected in series, a live line of the power line is connected to an anode of the pressure switch and an anode of the temperature display screen through the thermal protector, and a zero line of the power line is connected to a cathode of the temperature display screen and a cathode of the kick type temperature controlled switch.
According to the liquid heating device and the liquid heating system, the jump type temperature control switch of the temperature control module is arranged, so that the electric heater can be controlled to be turned off when the water temperature in the heating cavity reaches the preset temperature of the jump type temperature control switch.
In addition, the pressure switch is arranged, so that after water enters the liquid inlet pipeline, the pressure switch is closed after the liquid inlet pipeline reaches a certain water pressure to enable the electric heater to heat water in the heating cavity, and the phenomenon that the electric heater is dried is prevented from occurring.
Drawings
FIG. 1 is a schematic view of the overall structure (one);
FIG. 2 is an exploded view (one);
FIG. 3 is an exploded view (two);
FIG. 4 is a schematic view of the overall structure (two);
FIG. 5 is a schematic diagram (III) of the overall structure;
fig. 6 is an exploded view (three);
FIG. 7 is a schematic view of a second coil configuration;
fig. 8 is a schematic configuration diagram of the control system.
Detailed Description
The utility model is further described by way of example with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 to 7, the liquid heating apparatus described in this embodiment includes a housing 1, the housing 1 includes a liquid inlet 14, a liquid outlet 17, a temperature detection port 16, and a heating cavity 13 respectively communicated with the liquid inlet 14, the liquid outlet 17, and the temperature detection port 16, an electric heater 8 for heating liquid in the heating cavity 13 is disposed in the heating cavity 13, a temperature control module 2 for controlling the electric heater 8 to be turned off according to whether a detected liquid heating temperature reaches a preset value is disposed on the temperature detection port 16, and the temperature control module 2 is connected to the electric heater 8; preferably, the temperature control module 2 includes a snap-action temperature control switch 21 and a heat conducting metal sheet 22, the heat conducting metal sheet 22 is fixed at the temperature detection port 16 and seals the temperature detection port 16, an induction part 211 of the snap-action temperature control switch 21 is attached and fixed to the heat conducting metal sheet 22, and the snap-action temperature control switch 21 is connected to the electric heater 8. The heat conducting metal sheet 22 may be a stainless steel sheet, the sensing part 211 of the kick type temperature control switch 21 is also a stainless steel sheet, and the electric heater 8 is an electric heating tube.
Based on the above structure, cold water enters the heating cavity 13 through the liquid inlet 14, and then the electric heater 8 is energized to heat, so that the water in the heating cavity 13 is heated, the water temperature is conducted to the sensing part 211 of the snap-action temperature control switch 21 through the heat conducting metal sheet 22, when the snap-action temperature control switch 21 senses that the temperature reaches a preset value, the snap-action temperature control switch 21 is turned off to control the electric heater 8 to stop energizing and turn off, thereby preventing the over-high pressure in the heating cavity 13 and the over-high water temperature.
In this embodiment, a sealing gasket is disposed between the edge of the temperature detection port 16 and the heat conductive metal sheet 22, and the structure of the sealing gasket is configured to seal the heat conductive metal sheet 22 and the edge of the temperature detection port 16, so as to prevent water leakage.
Preferably, the gasket includes a sealing ring sheet 23, a plurality of positioning sleeves 231 are arranged on the sealing ring sheet 23, a plurality of fixing sleeves 161 are arranged on the periphery of the temperature detection port 16, the sealing ring sheet 23 covers the casing 1 and is located at the position of the temperature detection port 16, an inner hole of the sealing ring sheet 23 corresponds to the temperature detection port 16, the fixing sleeves 161 are mutually inserted into the positioning sleeves 231, the heat-conducting metal sheet 22 is attached to the upper side surface of the sealing ring sheet 23, a plurality of fixing holes 221 corresponding to the positions of the positioning sleeves 231 respectively are arranged on the heat-conducting metal sheet 22, a rear fixing bolt is inserted into each fixing hole 221, and a screw of the fixing bolt penetrates through the positioning sleeve 231 and is then fixed with the fixing sleeves 161 in a threaded connection manner, so as to mount and fix the heat-conducting metal sheet 22. The structure is reasonable, so that the snap-action temperature control switch 21 can be conveniently installed and can sense the water temperature in the heating cavity 13, the sealing performance between the heat-conducting metal sheet 22 and the opening edge of the temperature detection opening 16 is better, the water leakage condition is prevented, the service performance is improved, and the sealing ring sheet 23 adopts the silica gel sealing ring sheet 23; when the sensing part 211 of the snap-through temperature control switch 21 is fixed, two ends of the sensing part 211 are respectively arranged in the positioning holes corresponding to the 221 positions of the positioning holes, so that the fixing bolt penetrates through the positioning holes, the fixing holes and the positioning sleeve and then is fixedly connected with the fixing sleeve through threads, and the snap-through temperature control switch is fixedly installed.
In this embodiment, a liquid inlet pipeline 15 is arranged at the liquid inlet 14, a pressure switch 3 for controlling the electric heater 8 to work is installed on the liquid inlet pipeline 15, and the pressure switch 3 is connected with the electric heater 8; the pressure switch 3 is arranged, so that when the liquid inlet pipeline 15 enters cold water and then enters the heating cavity 13 through the liquid inlet 14, the pressure switch 3 is closed to control the electric heater 8 to be powered on after sensing the water pressure, so as to heat and raise the temperature of the cold water, and when the water pressure is not sensed, the pressure switch 3 is always kept to be switched off, so that the electric heater 8 is in a power-off state.
Based on the above, specifically, the pressure switch 3 includes the leather cup 35, the positioning plate 31, the fixed contact 32 and the elastic sheet 33, the liquid inlet pipe 15 includes the pressure chamber 155, the partition body 150, and the first cavity 151 and the second cavity 152 formed by the partition body 150, the pressure chamber 155 is provided with the first channel 156 communicated with the first cavity 151 and the second channel 157 communicated with the second cavity 152, and the partition body 150 is provided with the third channel 162 communicated with the first cavity 151; the positioning plate 31 is fixed above the pressure chamber 155, one end of the fixed contact piece 32 and one end of the elastic piece 33 are both fixed on the positioning plate 31, a recess 311 is arranged on the positioning plate 31, the other end of the elastic piece 33 and the other end of the fixed contact piece 32 are both located in the recess 311, the other end of the elastic piece 33 is correspondingly located below the other end of the fixed contact piece 32, the leather cup 35 is arranged in the pressure chamber 155, a column 351 is arranged on the leather cup 35, and the column 351 penetrates through the pressure chamber 155 and abuts against the bottom surface of the other end of the elastic piece 33; the positioning plate 31 is fixed on the positioning column 159 of the liquid inlet pipeline 15 through bolts; wherein, the liquid inlet pipe 15 is provided with a sleeve body 158, and the upper port of the sleeve body 158 is connected with a plug 160 by screw thread, so that the upper port of the sleeve body 158 is plugged to form a pressure chamber 155.
When cold water continuously enters the pressure cavity 155 through the first cavity 151 and the first channel 156 and enters the heating cavity 13 through the third channel 162 and the second cavity 152, water in the pressure cavity 155 continuously increases, the speed of the cold water in the pressure cavity 155 entering the second cavity 152 is slow, so that the upper end of the leather cup 35 is bulged under the action of water pressure, the cylinder 351 moves upwards, the other end of the elastic sheet 33 is enabled to be in contact with the other end of the fixed contact piece 32, the pressure switch 3 is closed, the electric heater 8 is powered on to heat the cold water, when the water inlet pipeline 15 stops water inlet, the water pressure in the pressure cavity 155 decreases, the elastic sheet 33 automatically moves downwards to reset, the pressure switch 3 is disconnected, and the electric heater 8 stops heating.
Preferably, a conductive column is fixed at the other end of the elastic sheet 33, the cylinder 351 penetrates through the pressure chamber 155 and abuts against the lower end of the conductive column, and the structure of the elastic sheet is convenient for jacking the other end of the elastic sheet 33 after the cylinder 351 is jacked.
Preferably, the second cavity 152 includes a first liquid outlet cavity 153 and a second liquid outlet cavity 154 which are separated from each other, the third channel 162 is communicated with the second liquid outlet cavity 154, the second channel 157 is communicated with the first liquid outlet cavity 153, and the second cavity 152 is separated from each other, so that the flow rate of the second channel 157 flowing into the first liquid outlet cavity 153 is reduced, the water pressure in the pressure cavity is increased, the upper end of the leather cup 35 is convenient to bulge, and the elastic piece and the contact piece are convenient to be contacted and communicated with each other.
In this embodiment, the housing 1 includes a casing 11 and an end cover 12 covering and fixed at an opening of the casing 11, and the liquid outlet 17 is disposed on the end cover 12. The structure is convenient for assembly, the end face of the shell 11 is provided with three through holes, and the three through holes can be respectively inserted into the electric heating pipes.
Preferably, a liquid outlet pipe 121 is arranged at the liquid outlet 17 of the end cover 12, a first buffer sleeve 122 is arranged at a port of the liquid outlet pipe 121, a second buffer sleeve 5 is fixed on the first buffer sleeve 122, a first through hole 1221 communicated with the liquid inlet pipe 15 is arranged on the first buffer sleeve 122, a second through hole 51 is arranged on the first buffer sleeve 122, a first spiral coil 123 surrounding the first through hole 1221 is arranged in the first buffer sleeve 122, a second spiral coil 61 surrounding the second through hole 51 is arranged in the second buffer sleeve 5, the first spiral coil 123 and the second spiral coil 61 are arranged correspondingly, a silica gel gasket 4 is clamped between the first spiral coil 123 and the second spiral coil 61, and a water through hole 41 connected with a spiral channel on the first spiral coil 123 and a spiral channel on the second spiral coil 61 is arranged on the silica gel gasket 4; the second buffer sleeve 5 is sleeved at the port of the first buffer sleeve 122 and then is in threaded connection and fixed, the end cover 12, the liquid outlet pipeline 121, the first buffer sleeve 122 and the first spiral ring 123 are combined into an integrated structure, the first spiral ring 123 is provided with a convex column 125, and the convex column 125 is inserted into the through hole 42 of the silica gel gasket 4 so as to position and fix the silica gel gasket 4; the second cushion collar 5 and the second spiral coil 61 may be an integrated structure combined with each other, or may be a split structure of the second cushion collar 5 and the second spiral coil 61, when the structure is split, the cushion body 6 is disposed in the second cushion collar 5, and the cushion body 6 includes a substrate 62, and the second spiral coil 61 disposed on the substrate 62, the first through hole 1221 is disposed on the substrate 62, and a sleeve 63 is disposed at a position of the substrate 62 located at the second through hole 51, and the sleeve 63 penetrates through a hole of the second cushion collar 5.
The setting of above-mentioned structure through the buffering of flight, prevents to appear out the water phenomenon of swashing, promotes performance.
Example 2:
as shown in fig. 1 to 8, a liquid heating system described in this embodiment is different from embodiment 1 in that it includes a power line 7, a temperature display screen 9, a thermal protector 10, and a liquid heating apparatus as described in this embodiment, a snap-action temperature control switch 21, a pressure switch 3, and an electric heater 8 of the liquid heating apparatus are connected in series (i.e. the elastic sheet of the pressure switch 3 is connected to the electric heater 8, and the electric heater 8 is connected to the snap-action temperature control switch 21), a live line 71 of the power line 7 is connected to the positive electrode (i.e. the fixed contact) of the pressure switch 3 and the positive electrode of the temperature display screen 9 through the thermal protector 10, respectively, a null line 72 of the power line 7 is connected to the negative electrode of the temperature display screen 9 and the negative electrode of the snap-action temperature control switch 21, respectively, and a ground line of the power line is connected to ground.
In the above, when the water temperature in the heating chamber 13 of the liquid heating device reaches the pre-determined temperature of the snap-action temperature control switch 21, the snap-action temperature control switch 21 is turned off, the electric heater 8 is controlled to be powered off, and the heating is stopped; when the heating cavity 13 of the liquid heating device inputs cold water, the pressure switch 3 can sense the water pressure, so that the pressure switch 3 is closed, the electric heater 8 is powered on to heat the cold water in the heating cavity 13, and the pressure switch 3 is always off when the water pressure is not sensed.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. The liquid heating device is characterized by comprising a shell (1), wherein the shell (1) comprises a liquid inlet (14), a liquid outlet (17), a temperature detection port (16) and a heating cavity (13) which is respectively communicated with the liquid inlet (14), the liquid outlet (17) and the temperature detection port (16), an electric heater (8) for heating liquid in the heating cavity (13) is arranged in the heating cavity (13), a temperature control module (2) for controlling the electric heater (8) to be closed according to whether the detected liquid heating temperature reaches a preset value is arranged on the temperature detection port (16), the temperature control module (2) comprises a sudden-jump type temperature control switch (21) and a heat conduction metal sheet (22), the heat conduction metal sheet (22) is fixed at the temperature detection port (16) and blocks the temperature detection port (16), a sensing part (211) of the sudden-jump type temperature control switch (21) is attached to and fixed with the heat conduction metal sheet (22), the kick type temperature control switch (21) is connected with the electric heater (8).
2. A liquid heating device as claimed in claim 1, characterized in that a sealing gasket is arranged between the mouth edge of the temperature detection mouth (16) and the heat conducting metal sheet (22).
3. The liquid heating apparatus according to claim 2, wherein the gasket includes a sealing ring plate (23), a plurality of positioning sleeves (231) are provided on the sealing ring plate (23), a plurality of fixing sleeves (161) are provided on the peripheral side of the temperature detecting port (16), the sealing ring plate (23) is fitted over the housing (1) at the position of the temperature detecting port (16), and the inner hole of the sealing ring sheet (23) corresponds to the temperature detection port (16), the fixing sleeve (161) is inserted into the positioning sleeve (231), the heat-conducting metal sheet (22) is attached to the upper side surface of the sealing ring sheet (23), a plurality of fixing holes (221) corresponding to the positions of the positioning sleeves (231) are formed in the heat-conducting metal sheet (22), rear fixing bolts are inserted into the fixing holes (221), and screws of the fixing bolts penetrate through the positioning sleeves (231) and then are fixedly connected with the fixing sleeve (161) in a threaded manner so as to install and fix the heat-conducting metal sheet (22).
4. The liquid heating device according to claim 1, wherein a liquid inlet pipe (15) is arranged at the liquid inlet (14), a pressure switch (3) for controlling the electric heater (8) to work is arranged on the liquid inlet pipe (15), and the pressure switch (3) is connected with the electric heater (8).
5. The liquid heating device according to claim 4, wherein the pressure switch (3) comprises a leather cup (35), a positioning plate (31), a fixed contact piece (32) and a spring piece (33), the liquid inlet pipe (15) comprises a pressure chamber (155), a partition body (150) and a first cavity (151) and a second cavity (152) which are formed by the partition body (150) in a partition way, the pressure chamber (155) is provided with a first channel (156) communicated with the first cavity (151) and a second channel (157) communicated with the second cavity (152), and the partition body (150) is provided with a third channel (162) communicated with the first cavity (151); locating plate (31) is fixed in pressure chamber (155) top, the one end of fixed contact (32) and the one end of shell fragment (33) all are fixed in on locating plate (31), be provided with on locating plate (31) sunken (311), the other end of shell fragment (33) and the other end of fixed contact (32) all are located sunken (311), and the other end correspondence of shell fragment (33) is located the other end below of fixed contact (32), leather cup (35) set up in pressure chamber (155), be provided with cylinder (351) on leather cup (35), cylinder (351) run through pressure chamber (155) and contradict with the other end bottom surface of shell fragment (33).
6. A liquid heating device as claimed in claim 5, characterized in that a conductive column is fixed to the other end of the spring plate (33), and the cylinder (351) penetrates through the pressure chamber (155) and abuts against the lower end of the conductive column.
7. Liquid heating device according to claim 5, characterised in that the second chamber (152) comprises a first outlet chamber (153) and a second outlet chamber (154) which are separated from each other, the third channel (162) communicating with the second outlet chamber (154), and the second channel (157) communicating with the first outlet chamber (153).
8. A liquid heating apparatus as claimed in any of claims 1 to 7, wherein the housing (1) comprises a shell (11) and an end cap (12) covering an opening in the shell (11), the liquid outlet (17) being provided in the end cap (12).
9. The liquid heating device according to claim 8, wherein a liquid outlet pipe (121) is disposed at the liquid outlet (17) of the end cap (12), a first buffer sleeve (122) is disposed at a port of the liquid outlet pipe (121), a second buffer sleeve (5) is fixed on the first buffer sleeve (122), a first through hole (1221) communicated with the liquid inlet pipe (15) is disposed on the first buffer sleeve (122), a second through hole (51) is disposed on the first buffer sleeve (122), a first spiral ring (123) disposed around the first through hole (1221) is disposed in the first buffer sleeve (122), a second spiral ring (61) disposed around the second through hole (51) is disposed in the second buffer sleeve (5), the first spiral ring (123) and the second spiral ring (61) are disposed correspondingly, and a silicone gasket (4) is clamped between the first spiral ring (123) and the second spiral ring (61), the silica gel gasket (4) is provided with a water through hole (41) connected with the spiral channel on the first spiral ring (123) and the spiral channel on the second spiral ring (61).
10. A liquid heating system, comprising a power line (7), a temperature display screen (9), a thermal protector (10) and a liquid heating apparatus according to any one of claims 1 to 9, wherein the kick type temperature controlled switch (21), the pressure switch (3) and the electric heater (8) of the liquid heating apparatus are connected in series, a live line (71) of the power line (7) is connected with an anode of the pressure switch (3) and an anode of the temperature display screen (9) through the thermal protector (10), respectively, and a neutral line (72) of the power line (7) is connected with a cathode of the temperature display screen (9) and a cathode of the kick type temperature controlled switch (21), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122710673.4U CN216667971U (en) | 2021-11-03 | 2021-11-03 | Liquid heating device and liquid heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122710673.4U CN216667971U (en) | 2021-11-03 | 2021-11-03 | Liquid heating device and liquid heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216667971U true CN216667971U (en) | 2022-06-03 |
Family
ID=81787551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122710673.4U Active CN216667971U (en) | 2021-11-03 | 2021-11-03 | Liquid heating device and liquid heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216667971U (en) |
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2021
- 2021-11-03 CN CN202122710673.4U patent/CN216667971U/en active Active
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