Double-sided heating instant heating assembly

Abstract

The utility model discloses a double-sided heating instant heating assembly which comprises a double-sided heating unit arranged in a shell, the double-sided heating unit comprises a waterway plate, a hollow runner groove is formed in the waterway plate, and an upper heating plate and a lower heating plate are arranged at the upper end and the lower end of the waterway plate respectively. The upper heating plate and the lower heating plate are welded and sealed with the edge of the waterway plate; a flow channel cavity is formed among the upper heating plate, the lower heating plate and the hollowed-out flow channel groove of the waterway plate, the two ends of the flow channel cavity are connected with pipe joints respectively, and the pipe joints penetrate to the outer side of the shell; a first thick film heating element is arranged on the outer surface of the upper heating plate, a second thick film heating element is arranged on the outer surface of the lower heating plate, and the first thick film heating element and the second thick film heating element are connected in parallel through a connecting line. The water heater has the advantages of high heating efficiency, good sealing performance, no plastic peculiar smell in heated water flow, simple and compact structure, small size and the like.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, specifically a double-sided heating instant heating component. Background Technology

[0002] With the rapid development of instant heating technology, it has become increasingly mature, with a wider variety of products and more extensive application scenarios. Existing instant heaters generally place the heating element on one side of the water channel or water, which can only achieve unilateral heating of the water, resulting in uneven heating and local temperature differences. Patent publication number CN212066501U discloses an instant water dispenser, which specifically discloses a heating assembly including a heating base plate with a heating film attached to it. The heating film has a guide channel, and water flows along the guide channel and is heated by the heating film. The heating base plate, heating film, and guide channel are fixed together with screws. However, this design has problems such as a plastic odor in the heated water, poor sealing, and low heating efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a double-sided heating instant heating component. The double-sided heating unit has high heating efficiency, good sealing performance, no plastic odor in the heated water, small size, can be disassembled and replaced individually, convenient wiring, high structural strength, and can effectively prevent deformation of the double-sided heating unit. The instant heating component has a simple and compact structure and small size, which can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a double-sided heating instant heating component, comprising a double-sided heating unit disposed within a housing, the double-sided heating unit comprising a water channel plate, the water channel plate having a hollowed-out flow channel groove, an upper heating plate and a lower heating plate respectively disposed at the upper and lower ends of the water channel plate, and the upper heating plate and the lower heating plate being welded and sealed to the edge of the water channel plate; a flow channel cavity is formed between the upper heating plate and the lower heating plate and the hollowed-out flow channel groove of the water channel plate, and pipe joints are respectively connected to both ends of the flow channel cavity, the pipe joints extending to the outside of the housing; a thick-film heating element one is disposed on the outer surface of the upper heating plate, and a thick-film heating element two is disposed on the outer surface of the lower heating plate, and the thick-film heating element one and the thick-film heating element two are connected in parallel to each other through a connecting line.

[0005] Furthermore, the upper heating plate is provided with power solder joint 1 at both the live wire terminal and the neutral wire terminal of the thick film heating element 1, and the upper heating plate is also provided with a wiring solder joint that is electrically connected to the power solder joint 1 at the live wire terminal of the thick film heating element 1; the lower heating plate is provided with power solder joint 2 at both the live wire terminal and the neutral wire terminal of the thick film heating element 2, and the power solder joint 2 at the live wire terminal of the thick film heating element 2 is connected to the power solder joint 1 at the live wire terminal of the thick film heating element 1 through a connecting wire; the power solder joint 1 and wiring solder joint at the neutral wire terminal of the thick film heating element 1 and the power solder joint 2 at the neutral wire terminal of the thick film heating element 2 are all welded with wiring terminals.

[0006] Furthermore, a through hole is provided at the center of the water circuit plate, and a centering shaft is fixedly installed in the through hole. The two ends of the centering shaft pass through the upper heating plate and the lower heating plate, respectively, and the upper heating plate and the lower heating plate are welded and sealed to the end face of the centering shaft.

[0007] Furthermore, the housing has at least one thermostat mounting hole, and a temperature control element is fixedly installed on the housing at the location of the thermostat mounting hole.

[0008] Furthermore, the housing has a hollow structure at the positions of the corresponding terminals and pipe joints; the terminals are inverted L-shaped or Z-shaped structures, and the horizontally arranged terminal head has an upwardly curved elastic piece. The housing has a wiring protrusion on one side of the terminal's terminal piece, and the wiring protrusion has multiple through holes for the terminal piece to pass through horizontally. The top of the wiring protrusion has multiple limiting holes that communicate with the through holes, and the elastic piece of the terminal is located in the limiting holes.

[0009] Furthermore, the housing includes an upper cover plate and a lower cover plate. The lower cover plate has a box structure, and the double-sided heating unit is disposed in the receiving cavity of the lower cover plate. Multiple connecting lugs are provided on the outer wall of the edge of the lower cover plate, and connecting holes are provided on the connecting lugs. Connecting lugs are provided on the upper cover plate at the positions corresponding to the connecting lugs. Connecting holes are provided on the connecting lugs. The upper cover plate is fixedly connected to the lower cover plate by screws passing through the connecting holes and connecting holes.

[0010] Furthermore, the upper cover plate is provided with mounting ear plates on its side wall, and mounting holes are provided on the mounting ear plates; the lower cover plate is provided with clearance grooves on its outer edge at the positions corresponding to the connecting ear plate and the mounting ear plate, and the connecting ear plate and the mounting ear plate are nested in their corresponding clearance grooves, and the top surface of the upper cover plate is flush with the top surface of the lower cover plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This double-sided heating instant heating component heats the water flow in the flow channel cavity simultaneously through the upper and lower heating plates, resulting in high heating efficiency; both the upper and lower heating plates are welded and sealed to the edge of the water circuit board, ensuring good sealing of the double-sided heating unit; the heated water has no plastic odor; it is small in size, can be disassembled and replaced individually, and is easy to wire; the centering shaft not only increases the structural strength of the double-sided heating unit but also effectively prevents deformation of the upper heating plate, water circuit board, and lower heating plate due to thermal expansion and contraction; the connection between the wiring tabs on the terminals and the through holes and limiting holes on the wiring protrusions on the housing effectively prevents the terminals from falling off due to high temperatures; this instant heating component has a simple, compact structure and small size. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is an isometric drawing of the present invention;

[0014] Figure 3 This is an exploded view of the present invention;

[0015] Figure 4 This is a schematic diagram of the upper heating plate structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the lower heating plate structure of this utility model;

[0017] Figure 6 This is an isometric view of the double-sided heating unit of this utility model;

[0018] Figure 7 This is a cross-sectional view of the double-sided heating unit of this utility model;

[0019] Figure 8 This is a schematic diagram of the terminal block structure of this utility model;

[0020] Figure 9 This is a schematic diagram of the upper cover plate structure of this utility model;

[0021] Figure 10 This is a schematic diagram of the lower cover plate structure of this utility model.

[0022] In the diagram: 1. Housing; 2. Upper heating plate; 21. Thick film heating element one; 22. Power solder joint one; 23. Wiring terminal; 231. Elastic sheet; 24. Wiring solder joint; 3. Water circuit board; 31. Flow channel groove; 4. Lower heating plate; 41. Thick film heating element two; 42. Power solder joint two; 43. Connecting wire; 5. Double-sided heating unit; 6. Upper cover plate; 61. Connecting ear plate one; 62. Mounting ear plate; 63. Wiring protrusion; 631. Through hole; 632. Limiting hole; 7. Lower cover plate; 71. Connecting ear plate two; 72. Relief groove; 8. Centering shaft; 9. Temperature control element; 10. Pipe connector; 11. Flow channel cavity. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] Please see Figure 1-10 This utility model provides a technical solution: a double-sided heating instant heating component, including a double-sided heating unit 5 disposed within a housing 1. The double-sided heating unit 5 includes a water channel plate 3, on which a hollowed-out flow channel groove 31 is formed. An upper heating plate 2 and a lower heating plate 4 are respectively disposed at the upper and lower ends of the water channel plate 3, and both the upper heating plate 2 and the lower heating plate 4 are welded and sealed to the edge of the water channel plate 3. A flow channel cavity 11 is formed between the upper heating plate 2 and the lower heating plate 4 and the hollowed-out flow channel groove 31 of the water channel plate 3, and the flow... Both ends of the channel cavity 11 are connected to pipe joints 10, and the pipe joints 10 all penetrate to the outside of the shell 1. In this embodiment, the pipe joints 10 are all welded to the lower heating plate 4, and the lower heating plate 4 is provided with water passage holes that communicate with the channel cavity 11 at the positions of the pipe joints 10. A through hole is provided at the center of the water circuit plate 3, and a centering shaft 8 is fixedly installed in the through hole. Both ends of the centering shaft 8 penetrate the upper heating plate 2 and the lower heating plate 4, and the upper heating plate 2 and the lower heating plate 4 are welded and sealed to the end face of the centering shaft 8.

[0025] The outer surface of the upper heating plate 2 is provided with a thick-film heating element 21, and the outer surface of the lower heating plate 4 is provided with a thick-film heating element 41. The upper heating plate 2 has a power solder joint 22 at both the live wire terminal and the neutral wire terminal of the thick-film heating element 21, and also has a wiring solder joint 24 electrically connected to the power solder joint 22 at the live wire terminal of the thick-film heating element 21. The lower heating plate 4 has a power solder joint 42 at both the live wire terminal and the neutral wire terminal of the thick-film heating element 41, and the power solder joint 42 at the live wire terminal of the thick-film heating element 41 is connected to the power solder joint 22 at the live wire terminal of the thick-film heating element 21 via a connecting wire 43. The power solder joint 22 and wiring solder joint 24 at the neutral wire terminal of the thick-film heating element 21 and the power solder joint 42 at the neutral wire terminal of the thick-film heating element 41 are all welded with terminals 23.

[0026] The housing 1 has a hollow structure at the positions corresponding to the wiring terminal 23 and the pipe connector 10; the wiring terminal 23 has an inverted L-shaped or Z-shaped structure, and the horizontally arranged wiring piece at the head of the wiring terminal 23 has an upwardly curved elastic piece 231. The housing 1 has a wiring protrusion 63 on one side of the wiring piece of the wiring terminal 23. The wiring protrusion 63 has multiple through holes 631 for the wiring piece to pass through horizontally. The top of the wiring protrusion 63 has multiple limiting holes 632 that communicate with the through holes 631, and the elastic piece 231 of the wiring terminal 23 is located in the limiting hole 632.

[0027] Working principle:

[0028] The pipe joints 10 at both ends of the flow channel cavity 11 are used to connect to the external water inlet pipe and water outlet pipe, respectively. Water flows into the flow channel cavity 11 through the pipe joint 10 at the water inlet end. Thick film heating element 21 and thick film heating element 41 work simultaneously, so that the upper heating plate 2 and the lower heating plate 4 heat the water in the flow channel cavity 11 at the same time. The heated water flows out through the pipe joint 10 at the water outlet end. The upper heating plate 2 and the lower heating plate 4 are both welded and sealed to the edge of the water circuit plate 3. The double-sided heating unit 5 has good sealing performance, high heating efficiency, and the heated water has no plastic odor. Moreover, the double-sided heating unit 5 is small in size and has a separate structure from the shell 1. It can be disassembled and replaced individually; the thick film heating element 21 on the upper heating plate 2 and the thick film heating element 41 on the lower heating plate 4 are connected in parallel through the connecting wire 43, which is convenient for wiring; the centering shaft 8 can not only increase the structural strength of the double-sided heating unit 5, but also effectively prevent the upper heating plate 2, water circuit plate 3 and lower heating plate 4 from deforming due to thermal expansion and contraction; the wiring piece on the wiring terminal 23 is inserted into the through hole 631 and the limiting hole 632 opened on the wiring protrusion 63 on the housing 1, which can effectively prevent the wiring terminal 23 from falling off due to high temperature; the instant heating component has a simple and compact structure and small size.

[0029] Furthermore, the housing 1 has at least one thermostat mounting hole, and a temperature control element 9 is fixedly installed on the housing 1 at the position of the thermostat mounting hole.

[0030] Furthermore, the housing 1 includes an upper cover plate 6 and a lower cover plate 7. The lower cover plate 7 has a box structure, and the double-sided heating unit 5 is disposed in the receiving cavity of the lower cover plate 7. Multiple connecting lugs 71 are provided on the outer edge of the lower cover plate 7, and each connecting lug 71 has a connecting hole. Connecting lugs 61 are provided on the upper cover plate 6 at positions corresponding to the connecting lugs 71, and each connecting lug 61 has a connecting hole. The upper cover plate 6 is fixedly connected to the lower cover plate 7 by screws passing through the connecting holes and connecting holes. The side wall is also provided with mounting ear plates 62, and mounting holes are provided on the mounting ear plates 62; the outer edge of the lower cover plate 7 is provided with relief grooves 72 at the positions corresponding to the connecting ear plate 61 and the mounting ear plate 62, and the connecting ear plate 61 and the mounting ear plate 62 are nested in the corresponding relief grooves 72, and the top surface of the upper cover plate 6 is flush with the top surface of the lower cover plate 7; the shell 1 is formed by the upper cover plate 6 and the lower cover plate 7 being fastened together, and the top surface of the upper cover plate 6 is flush with the top surface of the lower cover plate 7. The shell 1 has a simple structure and small size.

[0031] The double-sided heating instant heating component disclosed in this embodiment heats the water flow in the flow channel cavity 11 simultaneously through the upper heating plate 2 and the lower heating plate 4, resulting in high heating efficiency of the double-sided heating unit 5. Both the upper heating plate 2 and the lower heating plate 4 are welded and sealed to the edge of the water circuit plate 3, ensuring good sealing of the double-sided heating unit 5. The heated water flow has no plastic odor, is small in size, can be disassembled and replaced individually, and is easy to wire. The centering shaft 8 not only increases the structural strength of the double-sided heating unit 5 but also effectively prevents the upper heating plate 2, water circuit plate 3, and lower heating plate 4 from deforming due to thermal expansion and contraction. The wiring terminals 23 are connected to the wiring protrusions 63 on the housing 1 through holes 631 and limiting holes 632, effectively preventing the wiring terminals 23 from falling off due to high temperatures. This instant heating component has a simple, compact structure and small size.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-sided heating instant heating component, comprising a double-sided heating unit disposed within a housing, characterized in that: The double-sided heating unit includes a water channel plate with a hollowed-out flow channel groove. An upper heating plate and a lower heating plate are respectively provided at the upper and lower ends of the water channel plate, and the upper and lower heating plates are welded and sealed to the edge of the water channel plate. A flow channel cavity is formed between the upper and lower heating plates and the hollowed-out flow channel groove of the water channel plate, and pipe joints are respectively connected to both ends of the flow channel cavity, with the pipe joints extending to the outside of the shell. A thick film heating element one is provided on the outer surface of the upper heating plate, and a thick film heating element two is provided on the outer surface of the lower heating plate.

2. The double-sided heating instant heating component according to claim 1, characterized in that: The thick-film heating element one and the thick-film heating element two are connected in parallel via connecting wires; the upper heating plate has a power solder joint one at both the live wire terminal and the neutral wire terminal of the thick-film heating element one, and the upper heating plate also has a wiring solder joint that is electrically connected to the power solder joint one at the live wire terminal of the thick-film heating element one; the lower heating plate has a power solder joint two at both the live wire terminal and the neutral wire terminal of the thick-film heating element two, and the power solder joint two at the live wire terminal of the thick-film heating element two is connected to the power solder joint one at the live wire terminal of the thick-film heating element one via connecting wires; the power solder joint one and wiring solder joint one at the neutral wire terminal of the thick-film heating element one and the power solder joint two at the neutral wire terminal of the thick-film heating element two are all welded with terminals.

3. The double-sided heating instant heating component according to claim 1, characterized in that: A through hole is provided at the center of the water circuit plate, and a centering shaft is fixedly installed in the through hole. The two ends of the centering shaft pass through the upper heating plate and the lower heating plate, respectively, and the upper heating plate and the lower heating plate are welded and sealed to the end face of the centering shaft.

4. A double-sided heating instant heating component according to claim 1, characterized in that: The housing has at least one thermostat mounting hole, and a temperature control element is fixedly installed on the housing at the location of the thermostat mounting hole.

5. A double-sided heating instant heating component according to claim 2, characterized in that: The housing has a hollow structure at the positions of the corresponding terminals and pipe joints; the terminals are inverted L-shaped or Z-shaped structures, and the horizontally arranged terminal head has an upwardly curved elastic piece. The housing has a wiring protrusion on one side of the terminal's terminal piece, and the wiring protrusion has multiple through holes for the terminal piece to pass through horizontally. The top of the wiring protrusion has multiple limiting holes that communicate with the through holes, and the elastic piece of the terminal is located in the limiting holes.

6. A double-sided heating instant heating component according to claim 1, characterized in that: The housing includes an upper cover plate and a lower cover plate. The lower cover plate has a box structure, and the double-sided heating unit is located in the cavity of the lower cover plate. Multiple connecting lugs are provided on the outer edge of the lower cover plate. Each connecting lug has a connecting hole. Each connecting lug is provided on the upper cover plate at a position corresponding to the connecting lug. Each connecting lug has a connecting hole. The upper cover plate is fixedly connected to the lower cover plate by screws passing through the connecting holes and connecting holes.

7. A double-sided heating instant heating component according to claim 6, characterized in that: The upper cover plate is also provided with mounting ear plates on its side wall, and mounting holes are provided on the mounting ear plates; the lower cover plate is provided with clearance grooves on its outer edge at the positions corresponding to the connecting ear plate and the mounting ear plate, and the connecting ear plate and the mounting ear plate are nested in their corresponding clearance grooves, and the top surface of the upper cover plate is flush with the top surface of the lower cover plate.

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