JPS58501635A - water heating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] water heating device Technical field The present invention is suitable for heating water for domestic and commercial purposes and for discharging water, e.g. from a water mains. It relates to a water heating device with a pressurized cold water supply.

Background technology Hot water is heated by heating means such as electric immersion heaters or by boilers. The tank in which the coil in which hot water is circulated is normally supplied from another storage container. be provided. Heat exchange by such methods is relatively slow and reduces gasification, i.e. heat exchange. Due to water bubbles adhering to the hot water element, the efficiency is low and the storage of hot water is also uneconomical. Ru.

Various types that are efficient enough to heat the collected water therefore as it flows through the device. Electrical heating devices have been proposed. This device eliminates the need for mineral hot water storage. Ru.

Electrical heating is accomplished by an electrical resistance heater, usually a coiled wire, placed in the water channel. Ru. However, this type of device is insufficient to deliver, for example, only one twist at a time. It is possible to generate a small flow of hot water in 4 minutes.

Disclosure of invention The object of the invention is to eliminate the need to store heated water and convert electrical energy into heat. The object of the present invention is to provide a water heating device whose conversion efficiency is 1.

According to the invention, an inlet duct, an outlet duct and between said inlet and outlet ducts and a water heating unit including a printed circuit heater means. provided.

Brief description of the drawing The invention will now be described by way of example with reference to the accompanying drawings, in which: FIG.

#! FIG. 1 is an enlarged schematic perspective view showing a water heating device constructed according to an embodiment of the present invention; FIG. 2 is a perspective view showing the main body forming part of the water heating device, and FIG. 3 is a perspective view showing the inlet vibrator and Yet another schematic perspective view showing the main body of the water heating device, which is equipped with a heater unit (heater unit) and shows the inside. Figure 4 shows the inlet vibrator and heater unit shown in Figure 5, which have been removed from the main body. A perspective view showing Fig. 5 is an end view showing the helical heating unit, and Fig. 6 is an end view showing the helical heating unit. A schematic perspective view showing the first embodiment of the water heating means using the main body shown in FIG. 3, and FIG. A schematic perspective view similar to FIG. 6 of the embodiment, and FIG. 8 shows a five-stage water heater with control means. shows the arrangement of Figure 9 shows the arrangement of the heating unit in which the temperature sensor is incorporated together with the heating element. , 10th line device control circuit diagram; FIG. 11 is a sectional view of the inlet portion of another embodiment of the present invention, and FIG. 11a is the inlet portion of FIG. 11. Perspective view of an optional heater unit for use with a spout, line 111 FIG. 11 is a cross-sectional view of the outlet portion of the embodiment, and FIG. 12 is a cross-sectional view of another alternative heater unit. Perspective view of knitting, FIG. 13 is a schematic perspective view of another optional heater unit, and FIG. 14 is a schematic perspective view of another optional heater unit. Figure 15 is a cross-sectional view of another different shaped water heater. ,and FIG. 16 is a schematic layout of the water heating device of FIG. 15.

BEST MODE FOR CARRYING OUT THE INVENTION Referring to Fig. 1, this figure shows a case where hot water is supplied and is supplied from the main water supply pipe, for example. A water heating device for domestic use is shown.

The device as shown in FIG. 1 comprises an inlet part 1o and an outlet part 11 and said inlet A body part 12 containing the heating means of the appliance is placed between the part and the outlet part. include.

Parts of the casing have been removed for clarity and the outline of the device is approximately rectangular in shape as shown. Any other shape may be used instead. In addition, the main body portion 12 has a shape other than a rectangle. For example, as shown in FIGS. 2 and 6, It may also have a pθar-shaped cross section.

The inlet section 10 includes a controller 13 in which the temperature of the delivered water is regulated, as will be explained. 9 is attached.

Figures 2 to 5 may be adapted to fit within a case of the shape of Figure 1 or any other suitable shape. The structure and arrangement of various parts of the water heater of the first embodiment are shown.

FIGS. 2 and 5 show a substantially pear-shaped metal body 14 on the horizontal r side. The metal body is at the end 1 115 and 16 respectively, and in the end wall 15, which is the inlet end of the metal body, there is a substantially central A hole 17 is provided. The hole 17 receives an adapter plug that supports the water supply pipe 18. The water supply pipe 18 is threaded to accommodate, for example, a water supply pipe 18 in use. To receive pressurized cold or relatively cold water from a water main It is located. If necessary, the inlet may incorporate a check valve. Wall 15 is also used It includes a further threaded hole 19 and a slot 2o which are plugged with a plug in case of use. I'm reading.

End wall 16 is longitudinally aligned with hole 19 and fitted within hole 17 as well. The adapter plug 23 (Figs. 6 and 7) that supports the exit vibrator 24 is It has a hole 21 which is threaded like hole 17 to receive it.

The water supply pipe 18 extends to the inner surface of the end wall 16 where it is closed. death However, the pipe 18 has an axially extending slot 25 on its bottom surface to accommodate the Cold water flows from the slot into the heater unit 26 arranged in a spiral shape as shown in FIG. Forbidden to enter.

The heater unit, best shown in Figures 4 and 5, is sandwiched between a pair of metal plates. and in the form of a helically wound electrical printed circuit heater 27. to the heater Connections 28 for power supply and control of the heater are slotted)20. protrude through It is provided in a longitudinally elongated portion at one corner of the heater unit. glass or gold A metal thin plate, i.e. aluminum, can be provided around the outer circumference of the heater unit. Ru.

For example, by fitting into the water boiler body 14 and welding as shown in FIG. For example, a heater unit closed by an end wall 15,16 fixed to the rest of the water heater body. According to the unit, the cold water entering the water supply pipe 18 flows out from the slot 25 and It can be recognized that the water flows into the innermost 10,000 turns of the spiral of the heater unit.

The water then exits the outermost part of the spiral and enters the hole in the outlet end wall 16 of the boiler body 14. Outflows from a drain pipe 24 supported by a plug 23 fitted in 21 It flows through the remaining spiral.

The fact that the heater unit is a spiral means that in this example of four turns, water The surface area and contact time of the heater unit that comes into contact with the This means that it is significantly increased compared to the example heater unit. This is a heat It can be kept relatively short and compact while increasing the efficiency of the In this way, the water heating device itself can be manufactured compactly and at a low cost. Ma The structure of the octopus heater is recognized to reduce gasification and further increase thermal efficiency. Ta.

FIG. 6 shows the assembled main body 14, inlet and outlet vibes 1 for the water heating device of the present invention. 8,24. A first embodiment of a heater unit 26 and associated control system is shown. K A base 5° is shown schematically around the body 14, and this is made of asbestos or the like as a thermally insulating material. can be included. Electrical connection lines 31 and 32 are connected to a power source (illustrated in FIG. 10). ) to the connection 2B of the corner extension 29 of the heater unit. Over The ride (override) or cutout sensor 33 is the exit vibe 24 The system monitors the temperature of the incoming water and activates if it exceeds a predetermined maximum value. It is fitted into the body 14. For example, the sensor operates to turn off a heater unit. and can be reset manually or automatically. Electric @54,5 5 connects the sensor to a control circuit (not shown).゛Figure 7 has the same arrangement as Figure 6. but with an increased number of circuits connecting the six contacts 36 and associated supply lines 37. Has a lint circuit heater. Over 2 similar to Senna 5'5 in Figure 6 Similar to the ID sensor 58, the inlet and outlet vibes 18.24 each have n1 A section of the refill port is used to provide an electrical signal related to the temperature of the water flowing through the pipe. There are sensors 39 and 40. Tani sensor ore A pair that leads to the control means of the water heating device, which will be described later. It has electrical connection wires.

Typically, a hut heater unit (as shown in Figure 6) is a 5KW water boiler. A multiplex circuit arrangement used in the device and as in FIG. 7 produces 1QKw. will.

Figure 8 shows the case of using five assemblies of Figure 6 connected in expanded series, and the result Each assembly can perform one stage of the water boiling operation. Inlet of first body assembly The vibrator 18 is supplied from a cold water source and is passed through a spiral heater knitted thread in the main body. After being heated by , the number of read-out vibrations is not limited to the three shown; As an inlet vibe to the next body downstream in that series for subsequent assemblies. Helpful. This arrangement reduces wear and tear on each heater unit and thus extends its lifespan. lengthen Each assembly is shown as in FIG. 6 but equipped with a water temperature sensor 41. And although not shown, each assembly also includes an override sensor. Can be done. Heater control unit 42 and temperature control unit 45 also It is shown with a water outlet distribution system of five outlet branches 44 for hot water to be supplied. warm Temperature sensors monitor water temperature along the entire assembly and, for example, in one particular part of it. Can detect hot or cold places, so as to turn off the heater when . 70><I, according to the lever arrangement, each assembly has a heating load that is lower than the output of the final assembly. It can be spread across three heater units to produce water at the desired temperature at the mouth. Sea urchins can raise the water temperature up to a certain amount. If necessary, the main body can be It can be done similarly.

Figure 9 shows that the temperature sensor f44 is connected to the heating element 45 of the printed circuit board of the heater unit. The arrangement when both are manufactured is shown. This arrangement is particularly compact and - Temperature control at the connection 46 and the board edge as made to the control unit 47 Allows connection 48 to unit 49, thereby allowing sensor 41 in FIG. ◇However, a separate external temperature sensor such as sensor 41 is not required. Sensor 44 monitors water temperature along the entire heater unit and detects hot spots. If served, you can turn off the heating part.

Figure 10 shows Figures 1 to 9 when the water heater has an associated temperature sensor. Shows an electrical control circuit suitable for all water heating devices shown.

A helical heater unit is indicated at 50 and is provided for monitoring inlet and outlet water temperatures. The second senna is in the inlet and outlet sections 10 and 11 the same as with respect to FIG. 69 and 40, respectively. The heater unit is Norirad State Switch. controlled through a switch or relay 51. This is equipped with a piezoelectric power source at 52. It is growing. If a relay is used, e.g. incorporating a triac value It can be of any suitable type.

Sensors 59 and 40 are changed at 54 to adjust the output of the heater unit. connected to the bridge circuit. This change is made using the control knob 13 in Figure 1. be exposed. The 24 volt power supply is the voltage being supplied to the switch or relay 51. Both are connected between lines 55 and 56. Line 55 is the variable adjustment of bridge circuit 53 Means 54 is followed, while line 56 is connected to the opposite point of circuit 530. Line 57 is From the other junction of the bridge circuit between the tangent of the sensor 39 and the resistor to the operational amplifier 5B ◇This is a (temperature) difference amplifier. [15? is the remaining amount of circuit 55 from the junction to the other input of amplifier 58. Output line 60 from the amplifier is connected to resistor 6 1 and 62 to zero voltage line 56. Between lines 59 and 56 Coil 66 is connected.

@65 is a switch or relay 5 to connect wire 6o between resistors 61 and 62. Extends from 1. The collecting line 63 is a diode 64 connected between the collector and the base. and the line 65 of the diode 64 has another diode 660 Extending to the base, the collector and emitter of the diode 66 are! Ii! Between 56 and 65 is within the line 67.

A further resistor 68 is connected between lines 56 and 65 to complete the circuit. .

The arrangement is such that the inlet and outlet temperatures are sensed by a senna 59.40 and are variable adjustable. ! I! , 54, the heater current is input according to the setting of the control knob 16. It is now regulated to maintain the selected output temperature regardless of changes in temperature. There is.

Referring to Figures 11, tta and 111+, these are shown in Figure 1. Used in a good-sized water heater 10 Figure 2 shows alternative shapes of inlet and outlet sections and heater units. Figure 11 The inlet portion 10 shown in FIG. 1 includes a central water tube 114. This entrance has related There is a pipe adapter 115, which is shown schematically at 116 and is used to assemble a check valve. I'm absorbed in it. In the artificial section tube 114 there is a temperature related to the temperature of the water flowing through the inlet tube. An electrical temperature sensor device 117 extends that is capable of providing an electrical signal that ing.

Surrounding the tube 114 is a case containing the power supply, and the control device is of the type described above. It can consist of These features in the inlet pipe holder allow cold water to flow through it. For cooling electrical and electronic equipment.

At the top of section 10 is a threaded adapter 118.

The outlet section 11 also has a central pipe 119 through which hot water flows. Exit The end has an adapter 120 for connecting the associated piping and also extends into the pipe 119. There is an electrical temperature sensor 121.

Positioned in close proximity to bud 119 is a temperature responsive switch 126 . Sensor 5 mentioned above 5 and 38, this means that the temperature inside the outlet pipe 119 exceeds the predetermined fcw maximum value. It is arranged to operate on the results obtained. switch 125 Arranged to be manually reset when activated in case of excessive temperature conditions.

As shown in FIG. 1, the body portion 12 can be in the form of a rectangular cover and The inside of the lever has a cylindrical shape as shown in Figure 111. There is a heating unit 124. The heating unit 124 is connected to the inlet and outlet sections 10 and 124. and 11 adapters 118 and 122 for engagement with the adapters 118 and 122 of . This end has multiple electrical heating circuits each having an electrical heater circuit printed on each side There is a matrix designated 125 made from several printed circuit boards. wrinkle ! As the trix defines a number of squares or rectangles through which water flows Made from a number of boards arranged perpendicular to each other, each path is printed on the circuit board. It is bounded by a heated element.

For convenience, the matrix has slits that allow the substrates to be mutually engaged in a rigid manner. made from a number of flat substrates with The electrical connection between them is or conveniently located within the matrix.

Four external connections, designated 126, provide power to the printed circuit board.

The device is therefore equipped with an inlet section so that the water is heated as it passes through this unit. It operates by water flowing through the 100 inlet tube 114 and the matrix 125.

This matrix type heater unit is fully satisfactory in use. However, it is more expensive than a spiral heater unit and provides a shorter stroke than a spiral heater unit. I can do it.

FIG. 12 shows another option having multiple parallel printed circuit board plates 134. The heater unit is shown. each is rectangular and they are separated by posts 155. te2 Can be installed. Such a unit is enclosed within an enclosing cover and electrically connected. is performed at the end of the grate.

FIG. 15 shows a selective matrix having a substantially rectangular shape instead of the cylindrical shape shown in FIG. 11a. A shaped heater unit is indicated by reference numeral 137. However, this matrix is It is formed in various ways. Partially broken away for clarity to show heating element There is.

FIG. 14 shows a selective heating device including a case 158 containing a hollow body 159. . The inlet vibe 140 and the outlet vibe 141 are connected to opposite ends of the hollow body 159. and therein a pair of electrical connections at opposite ends of the exterior of the hollow body 139. There is a printed circuit board heater plate 142. Are these ore fire heat exchangers a heater? arranged to provide a disturbance to the flow of water through the hollow body, such as occurs in water from a hollow body. It's okay to be The inlet and outlet vibrators 140 and 141 are connected to the control circuit in the manner described above. The temperature sensors 143 and 144 are connected to each other.

The inlet vibe 14G has a manual valve 146 for cutting off the supply and an upstream side of the manual valve. A solenoid operated valve 147 is connected to piping 145 . The solenoid valve and to a control circuit to control the supply according to the output temperature conditions.

Figures 15 and 16 are further examples that may be used in a commercial environment. It shows a water heating device in the form of . Part 5 Two or more of these may be used in combination or t7'h may be used individually if necessary. The 0 population and exit parts are omitted to show a number of selective parts that can be and in this example only a heating unit with four parts is shown. . The first portion 148 is a tubular printed circuit board that widens toward the inlet end. It has a heater 149t. FIG. 16 shows this circular section. print heater The element wire is shown as a coil on the printed circuit board and electrical connections to opposite ends of this The continuation is indicated at 150.

A heater unit 151 of similar but cylindrical shape is provided at the opposite end of the instrument at section 15. The electrical connection line 155 corresponds to the 0 shown within 2.

The portions 154 are two parallel parts each formed as a printed circuit board 155, 156. It has a cylindrical unit. The respective electrical connection lines are indicated by symbols 157 and 158. Ru.

Still other shapes shown in portion 159 provide respective electrical connections 165, 164 . It has five parallel cylindrical units 160, 161, 162 with 165.

Other shapes of heaters can also be used that incorporate a trough printed circuit board . These must be insulated or exposed directly to water, in which case adequate earthing is required. May be served.

However, as mentioned, the helical arrangement has advantages of efficiency and low cost. In addition, electrical connections can be made at convenient locations. Easy 14 Therefore, it is very advantageous.

Industrial applicability According to some constructions of water heating devices utilizing the present invention, the device can be considered to be used at will. It is considered that the cost can be reduced to the extent that it can be achieved.

Engraving (no changes to the content) Procedural amendment Date: July 1982 Mr. Kazuo Wakasugi, Commissioner of the Patent Office (Patent Office Examiner) ■・Incident 9 parable/GB 82/. . 2672, title of invention water heating device 3. Person who makes corrections Relationship to the case: Patent applicant Name Overseas Automation Limited Post Office in P Kasumigaseki Building I Bookbox No. 19 5. Date of amendment order June 16, 1981 (Shipping date: June 21, 1988) 6. Increased due to amendment. Number of inventions to add: 0 7. Bokoken (a) 7m164o,) 5 抛1 item. Regulations, documents, international search reports

Claims (1)

[Claims] 1. From the inlet pipe, the outlet pipe, and the water heating unit between the inlet and outlet pipes. な夛、#Kettle characterized in that the kettle unit includes printed circuit heater means device. 2. characterized by including sensor means for providing information regarding the temperature of water in the device The equipment & as claimed in claim 1. (5) the sensor transmits electrical signals related to water temperature along the length of the water heating unit; and adjusting the power supply to the water heating unit in response to the signal. The device 0 according to claim 2, characterized in that it includes a control means. A device that provides an electrical signal related to the temperature of the water passing through the inlet and outlet pipes. from each electrical sensor and said temperature sensor in said inlet and outlet pipes. control means for adjusting the power supply to the water heating unit in response to the received signal. 3. A device according to claim 2, characterized in that: 5. If the water temperature exceeds a predetermined temperature, the power supply to the two-nit water heater will be cut off. Claims characterized in that they include override sensor means operable to Either the first term or the fourth term is 1! The apparatus described in J. 6) The preceding item of claim H, characterized in that the water boiler unit is in the form of a spiral H. Device 07 according to any one of the above, the inlet vibrator, during use, 6 and the water passes around the helical coil before exiting through the exit vibe. The device-0 according to claim 6, characterized in that the system circulates the a. The helical water heating unit is connected between opposite ends of the main body, each closing the end of the spiral. and provide an extension line 'IE pneumatic connection of said spiral water heating unit. Claim 6, characterized in that it protrudes through a slot in said body so as to or a device according to paragraph 7. λ A single printed circuit heater is provided in the water heating unit. The device according to any one of claims 16 to 8. 1α A plurality of printed circuit heaters are provided in the water heating unit. An apparatus according to any one of claims 6 to 8. 11. The water heating unit includes at least one pre-heater moved between a pair of plates. Claims 1 to 10, characterized in that The device according to any one of the above. 1Z The plate according to claim 11, wherein the plate is a gold bullion. Device. 1. The water heating unit is a matrix consisting of a printed electric heater circuit board. Any one of claims 1 to 5, characterized in that it consists of a box. Section d of i listed in Section 1. 14 The water heating unit matrix has a plurality of squares or 17 Lines made from a number of substrates arranged perpendicular to each other to define a rectangular flow path 14. A device according to claim 13, characterized in that: 1S Claim characterized in that the matrix is square or rectangular. Apparatus according to paragraph 14. 16. According to claim 14, the matrix is cylindrical. equipment. (a) A number of parallel parallel columns placed one above the other on the ricks frame support. Claim 15, characterized in that it consists of a printed circuit board plate. equipment. 1& The plate is rectangular, as set forth in claim 17. Device. 19. Separate heating stages are provided in series, each stage containing heating, so that during use the water characterized in that the temperature of can be increased in each step up to the desired value. The apparatus according to any one of claims 1 to 18. 2CL according to claim 19, characterized in that three heating stages are provided. equipment. 21. The body through which water passes during use shall have one or more printed circuit board heater plates. comprising means for perturbing the flow within said body to increase heat exchange. An apparatus according to any one of claims 1 to 5, characterized in that: n. The plates are arranged parallel to each other and facing each other in the flow direction. 22. The apparatus according to claim 21. Mu　The water boiling unit is a pre-coil arranged on a printed circuit board. a tubular printed circuit flared towards one of its ends with a heating element Any one of claims 1 to 5, characterized in that it consists of a substrate heater. The device according to item 1. 24. The water heating unit has a printed heating element arranged as a coil. Claims 1 to 5, characterized in that the circuit board is made of a cylindrical printed circuit board. The device 0 according to any one of A plurality of the cylindrical printed circuit boards are arranged in parallel to form a water heating unit. 25. Apparatus according to claim 24, characterized in that it is arranged. 26 Two or more different water heating units can be used as a multi-section heater. Claims 23 and 23 are characterized in that they are combined in series to provide Apparatus according to paragraphs 24 and 25. 27. The printed circuit heating means has one or more cells incorporated therewith. According to any one of claims 2 to 4, the invention has a sensor. Described device 0 connection to the heating means and the one or more sensors is connected to the printed circuit Claim 2, characterized in that the heater means is provided at the edge of the substrate supporting the heater means. The device according to item 7. 9 29. To maintain the selected water output temperature, the 1t ore multiple temperature sensor including a control circuit that increases or decreases the output of the water heating unit during use in response to 29. The device according to any one of claims 2 to 28, characterized in that: Brother: The control circuit line to which the 1t or more senna is connected and the selected water output consisting of a resistive bridge circuit with a variable resistance that can be set to respond to temperature; The arrangement is such that the resistor is set to give the chosen water output temperature. The deviation from said temperature at the output of the device is passed through an operational amplifier in said control circuit. active electrical states controlled by electrical signals from the bridge circuit; causing regulation of the current supply to said water heating unit by a switch or relay; 30. A device according to claim 29, characterized in that: