Heater with metal shell and dish washing machine

Abstract

The heater with the metal shell and the dish washing machine comprise the heater, a pump shell and a power component, the heater is located in the pump shell, the power component is arranged at the bottom of the heater, the heater comprises the metal shell, a heat conduction piece and a heating pipe, and the heating pipe is located in the metal shell. A heat conduction piece is arranged between the metal shell and the heating pipe; a cavity allowing water flow to pass through is formed in the middle of the metal shell, a containing cavity capable of containing the water flow is formed outside the metal shell, water in the cavity and the containing cavity can be heated, and the power component enables the water flow to pass through the heater from the water inlet and be discharged from the water outlet entering the pump shell. The heating pipe is protected by multiple times, so that the heating pipe is not easy to corrode, the service life of the heating pipe is prolonged, meanwhile, the inner cavity and the accommodating cavity of the heater can heat passing water, and the heating efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heater, especially a heater with metal shell and dish washer. BACKGROUND

[0002] The heater of the dish washer is an important component in the dish washer, and its main function is to heat water to a certain temperature to ensure the cleaning and disinfecting effect of tableware. The working principle of the heater is that the heater controls the working of the heating element according to the feedback of the water temperature sensor to keep the water temperature at an ideal cleaning temperature. For example, when the water temperature rises to the set value, the heater will be powered off, and when the water temperature drops below the set value, the heater will be powered on again.

[0003] The heater of the dish washer is usually made of materials with good heat conduction performance, such as the Chinese utility model patent with the application number 202120678182.3 and the name of a high-power commercial dish washer heater, which directly contacts with water through multiple U-shaped bending parts of the multiple U-shaped bending profiled heating pipe to heat the water inside the dish washer. However, the U-shaped bending profiled heating pipe directly contacts with the water inside the dish washer, and after long-term use, the surface of the heating pipe will be corroded, the heating efficiency of the heating pipe will be reduced, and in serious cases, the exposed internal wiring of the heating pipe will cause the risk of electric shock.

[0004] For example, the Chinese invention patent with the application number 202111209493.6 and the name of a heating pump and a dish washer using the heating pump, the heating element is integrally formed with at least part of the shell, and the internal water is heated by the heating body. However, the contact area between the heating body and the internal water is small, and the heating effect is poor.

[0005] Based on the above problems, the utility model provides a heater with metal shell and dish washer, which can protect the heating pipe, and the internal cavity and the accommodating cavity of the heater can heat the passing water, improve the heating efficiency, and prolong the service life of the heating pipe. UTILITY MODEL CONTENTS

[0006] The utility model is to overcome the defects in the prior art, provide a heater with metal shell and dish washer, which can protect the heating pipe, and the internal cavity and the accommodating cavity of the heater can heat the passing water, improve the heating efficiency, and prolong the service life of the heating pipe.

[0007] In order to achieve the above object, the utility model adopts the technical scheme, which is a heater containing a metal shell, comprising a metal shell, a heat conducting piece and a heating pipe, the heating pipe is located in the metal shell, and the heat conducting piece is arranged between the metal shell and the heating pipe, a cavity for water flow is formed in the middle of the metal shell, and the water in the cavity and the accommodating cavity can be heated.

[0008] As a preferred scheme of the utility model, the metal shell comprises a metal inner tube and a metal shell, the bottom surface of the metal shell is lower than the bottom surface of the metal inner tube, and the metal inner tube and the metal shell are connected by welding.

[0009] As a preferred scheme of the utility model, the upper end of the metal shell forms a first bending part, the lower end of the metal shell forms a second bending part, the side of the second bending part towards the metal inner tube abuts against the outer wall of the metal inner tube, and the mounting groove is formed between the metal shell and the metal inner tube.

[0010] As a preferred scheme of the utility model, the metal shell comprises a metal inner tube and a metal shell, and the metal inner tube and the metal shell are integrally formed.

[0011] As a preferred scheme of the utility model, the top of the metal inner tube is a water inlet, and the height of the metal inner tube is higher than the height of the heat conducting piece, and the water flow enters the cavity and the accommodating cavity in sequence from the water inlet.

[0012] As a preferred scheme of the utility model, the heating pipe extends along the vertical direction of the metal inner tube.

[0013] As a preferred scheme of the utility model, the heating pipe comprises a heating part and a connecting part, the heating part is arranged horizontally around the outer circle of the metal inner tube, and the connecting part connects two adjacent heating parts.

[0014] As a preferred scheme of the utility model, at least two heating parts are arranged in the vertical direction of the metal inner tube.

[0015] As a preferred scheme of the utility model, the heating pipe comprises a heating pipe end part, and the heating pipe end part is located at the top of the metal shell and extends out of the metal shell.

[0016] A dishwasher comprises a heater, a pump shell and a power component, the heater is located in the pump shell, a sealing ring is arranged at the connection part of the pump shell and the heater, the bottom of the heater is provided with the power component, and the power component makes the water flow pass through the heater from the water inlet and be discharged from the water outlet into the pump shell.

[0017] The utility model has the advantages of:

[0018] 1. The heating pipe is protected by multiple protections, so that the heating pipe is not easy to be corroded, the material selection of the heating pipe is more extensive, and the service life of the heating pipe is prolonged.

[0019] 2. The internal cavity and the containing cavity of the heater can heat the water passing through, improving the heating efficiency.

[0020] 3. The metal shell has a large water flow contact surface, facilitating rapid heat dissipation of the heater when not heating.

[0021] 4. The longer metal inner tube can not only increase the contact area of the metal shell and the water flow, improve the heating and heat dissipation efficiency, and facilitate water inlet of the water inlet and not interfere with the internal components of the heating pipe; and the metal shell formed by the metal inner tube and the metal shell facilitates the installation of the metal shell and other components.

[0022] 5. The heating pipe is reasonably arranged to heat the water flow in each part of the cavity and the containing cavity quickly and uniformly. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic view of the internal structure of the utility model;

[0024] Figure 2 is a schematic view of the external structure of the utility model;

[0025] Figure 3 is a schematic view of the position of the heating pipe and the metal inner tube of the utility model;

[0026] Figure 4 is a schematic view of the structure of the heating pipe of the utility model;

[0027] Figure 5 is a schematic view of one of the structures of the metal shell of the utility model;

[0028] In the drawing, reference numeral 1 is a metal shell, 2 is a heat conducting member, 3 is a heating pipe, 11 is a cavity, 12 is a containing cavity, 13 is a metal inner tube, 14 is a metal shell, 15 is a contact surface, 16 is a mounting groove, 31 is a heating part, 32 is a connecting part, 33 is a heating pipe end, 100 is a pump shell, 101 is a water outlet, 131 is a water inlet, 141 is a first bending part, 142 is a second bending part, 200 is a sealing ring, and 300 is a power component. DETAILED DESCRIPTION

[0029] The embodiments of the utility model will be described in detail below with reference to the drawings.

[0030] As Figures 1-5As shown in the figure, a heater with a metal shell comprises a metal shell 1, a heat conducting piece 2 and a heating pipe 3, the heating pipe 3 is located inside the metal shell 1, the heat conducting piece 2 is arranged between the metal shell 1 and the heating pipe 3; a cavity 11 for water flow is formed in the middle of the metal shell 1, a containing cavity 12 for containing water flow is formed outside the metal shell 1, and the water in the cavity 11 and the containing cavity 12 can be heated.

[0031] The heat conducting piece 2 in the utility model is preferably an aluminum casting, but can also be other metals or metal alloys.

[0032] When the heat conducting piece 2 is an aluminum casting, the connection mode of the metal shell 1, the heat conducting piece 2 and the heating pipe 3 is that the heating piece 3 is first positioned inside the metal shell 1, then aluminum water is injected into the metal shell 1, and then the stainless steel shell 1, the heat conducting piece 2 and the heating pipe 3 are pressure-cast into one.

[0033] The metal shell 1 in the utility model is preferably a stainless steel material, but can also be other metals or metal alloys.

[0034] Specifically, the heat conducting piece 2 covers the heating pipe 3 to protect the heating pipe 3 for the first time, the metal shell 1 outside the heat conducting piece 2 protects the heating pipe 3 for the second time, and the multiple protections of the heating pipe 3 make the heating pipe 3 not easy to be corroded, thereby prolonging the service life of the heating pipe 3.

[0035] The heat conducting piece 2 promotes the heat transfer of the heating pipe 3.

[0036] Furthermore, the cavity 11 formed inside the metal shell 1 and the containing cavity 12 formed outside the metal shell 1 can heat the water passing through, thereby greatly improving the heating efficiency of the heating pipe 3, and meanwhile, when the heating pipe 3 is not heated, the large contact surface 15 of the metal shell 1 in contact with the water flow also facilitates rapid heat dissipation, which is beneficial to improving the service life of the heater.

[0037] The multiple protections of the heating pipe 3 in the utility model make the heating pipe 3 not easy to be corroded, the material selection of the heating pipe 3 is more extensive, and the service life of the heating pipe 3 is prolonged; the cavity 11 and the containing cavity 12 inside the heater can heat the water passing through, thereby improving the heating efficiency.

[0038] The metal shell 1 comprises a metal inner tube 13 and a metal outer shell 14, the bottom surface of the metal outer shell 14 is lower than the bottom surface of the metal inner tube 13, and the metal inner tube 13 and the metal outer shell 14 are connected by welding.

[0039] A first bending part 141 is formed on the upper end of the metal outer shell 14, a second bending part 142 is formed on the lower end of the metal outer shell 14, the side of the second bending part 142 towards the metal inner tube 13 abuts against the outer wall of the metal inner tube 13, and a mounting groove 16 is formed between the metal outer shell 14 and the metal inner tube 13.

[0040] The top of the metal inner tube 13 is the water inlet 131. The height of the metal inner tube 13 is higher than the height of the heat-conducting component 2. Water flows from the water inlet 131 into the cavity 11 and the receiving cavity 12 in sequence.

[0041] Specifically, there is a height difference between the inner metal tube 13 and the outer metal shell 14. The top surface of the inner metal tube 13 is higher than the top surface of the outer metal shell 14, which facilitates water intake through the inlet 131 of the inner metal tube 13 and prevents interference with the internal components of the heating tube 3. The bottom surface of the outer metal shell 14 is lower than the bottom surface of the inner metal tube 13, and a second bend 142 is formed on the side of the bottom surface of the outer metal shell 14 facing the inner metal tube 13, so that a mounting groove 16 is formed at the connection between the outer metal shell 14 and the inner metal tube 13. The mounting groove 16 enables the positioning and installation of the power component 300 inside the outer metal shell 1.

[0042] Furthermore, a first bend 141 is formed on the top surface of the metal casing 14 facing the pump casing 100. The first bend 141 facilitates positioning and installation with the internal structure of the pump casing 100. A sealing ring 200 is also provided between the first bend 141 and the pump casing 100, which helps to improve the sealing performance inside the heater.

[0043] In this invention, the longer inner metal tube 13 not only increases the contact area between the metal shell 1 and the water flow, improving heating and heat dissipation efficiency, but also facilitates water intake through the inlet 131 without interfering with the internal components of the heating tube 3; while the metal shell 1, composed of the inner metal tube 13 and the outer metal shell 14, facilitates the installation of the metal shell 1 with other components.

[0044] like Figure 5 As shown, for ease of processing and installation, the inner metal tube 13 and the outer metal shell 14 in the metal casing can also be integrally formed.

[0045] The heating tube 3 extends vertically along the inner metal tube 13, meaning that the heating tube 3 extends from the bottom of the metal shell 1 to the top of the metal shell 1, and the heating tube 3 has a wide heating range.

[0046] The heating tube 3 includes a heating part 31 and a connecting part 32. The heating part 31 is arranged horizontally around the outer ring of the inner metal tube 13. The connecting part 32 connects two adjacent heating parts 31. At least two heating parts 31 are arranged in the vertical direction of the inner metal tube 13.

[0047] The heating tube 3 includes a heating tube end 33, which is located at the top of the metal housing 1 and extends out of the metal housing 1. A wiring terminal is provided inside the heating tube end 33 to facilitate the heating tube 3 to be powered on and heated.

[0048] Specifically, the heating part 31 is horizontally arranged around the outer ring of the metal inner tube 13, and the heating part 31 is also horizontally arranged around the inner ring of the metal outer shell 14, so that the heating part 31 can heat the water flow in the cavity 11 and the water flow in the containing cavity 12, further improving the heating efficiency; at the same time, the heating part 31 is arranged in multiple along the vertical direction of the metal inner tube 13, so that the heating part 31 can uniformly heat the water flow at each position in the cavity 11 and the containing cavity 12, improving the heating speed of the water flow and ensuring the uniformity of the water flow heating.

[0049] Further, the connecting part 32 not only connects the heating part 31, but also plays a role in heating the water flow.

[0050] The heating pipe 3 of the utility model is not limited to Figures 3-4 This embodiment, this embodiment is only for the convenience of the reader to understand, the utility model includes other embodiments, only need to meet multiple heating parts 31 are horizontally arranged, can uniformly heat the water flow of each layer, and the connecting part 32 is used to connect multiple heating parts 31 so that the heating pipe 3 can extend from bottom to top, expand the contact area of the heating pipe 3 and the water flow, and improve the heating efficiency.

[0051] Figures 3-4 In the embodiment, the heating part 31 is horizontally arranged and has the same diameter around the outer ring of the metal inner tube 13, and the connecting part 32 is vertically arranged, so that the water flow at each position in the cavity 11 and the containing cavity 12 is uniformly heated.

[0052] The utility model discloses a heating pipe 3 is arranged reasonably, so that the water flow at each position in the cavity 11 and the containing cavity 12 is quickly and uniformly heated.

[0053] The heater in the utility model can be used not only in household appliances such as dishwashers, but also in other household appliances using the heater, and the dishwasher containing the heater below is only an example.

[0054] A dishwasher comprises a heater, a pump shell 100 and a power component 300, the heater is located in the pump shell 100, a sealing ring 200 is arranged at the connection of the pump shell 100 and the heater, the bottom of the heater is provided with the power component 300, the power component 300 makes the water flow pass through the heater from the water inlet 131 and is discharged from the water outlet 101 of the pump shell 100, the water flow is heated in the cavity 11 and the containing cavity 12 of the heater, and the water flow discharged from the water outlet of the pump shell 100 is hot water.

[0055] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0056] Although the terms such as metal shell 1, heat conducting member 2, heating tube 3, cavity 11, accommodating cavity 12, metal inner tube 13, metal outer shell 14, contact surface 15, mounting groove 16, heating portion 31, connecting portion 32, heating tube end portion 33, pump shell 100, water outlet 101, water inlet 131, first bending portion 141, second bending portion 142, sealing ring 200, power component 300, etc. are used more frequently in the description of the drawings, the possibility of using other terms is not excluded; the use of these terms is only for the convenience of describing and explaining the essence of the application; any additional limitation by interpreting them is contrary to the spirit of the application.

Claims

1. A heater having a metal-containing enclosure, characterized by: The application relates to a heating device, which comprises a metal shell (1), a heat conducting piece (2) and a heating pipe (3), the heating pipe (3) is located in the metal shell (1), the heat conducting piece (2) is arranged between the metal shell (1) and the heating pipe (3), a cavity (11) for water flow is formed in the middle of the metal shell (1), a containing cavity (12) for water flow is formed outside the metal shell (1), and the water in the cavity (11) and the water in the containing cavity (12) can be heated.

2. A heater having a metal-containing enclosure according to claim 1, wherein: The metal shell (1) comprises a metal inner tube (13) and a metal shell (14), the bottom surface of the metal shell (14) is lower than the bottom surface of the metal inner tube (13), and the metal inner tube (13) and the metal shell (14) are connected by welding.

3. A heater having a metal containing housing according to claim 2, wherein: The upper end of the metal shell (14) is provided with a first bending part (141), the lower end of the metal shell (14) is provided with a second bending part (142), the second bending part (142) is in abutment with the outer wall of the metal inner tube (13) on one side of the metal inner tube (13), and the mounting groove (16) is formed between the metal shell (14) and the metal inner tube (13).

4. The heater having a metal-containing enclosure of claim 1, wherein: The metal shell (1) comprises a metal inner tube (13) and a metal shell (14), and the metal inner tube (13) and the metal shell (14) are integrally formed.

5. A heater having a metal containing enclosure according to claim 3 or 4 wherein: The top of the metal inner tube (13) is provided with a water inlet (131), and the height of the metal inner tube (13) is higher than the height of the heat conducting piece (2), so that the water flow enters the cavity (11) and the containing cavity (12) in sequence from the water inlet (131).

6. A heater having a metal containing enclosure according to claim 2 or 4 wherein: The heating pipe (3) extends along the vertical direction of the metal inner tube (13).

7. A heater having a metal containing housing according to claim 6, wherein: The heating pipe (3) comprises a heating part (31) and a connecting part (32), the heating part (31) is arranged horizontally around the outer circle of the metal inner tube (13), and the connecting part (32) connects two adjacent heating parts (31) upwards and downwards.

8. A heater having a metal containing enclosure according to claim 7, wherein: At least two heating parts (31) are arranged in the vertical direction of the metal inner tube (13).

9. A heater having a metal containing housing according to claim 8, wherein: The heating pipe (3) comprises a heating pipe end part (33), the heating pipe end part (33) is located at the top of the metal shell (1) and extends out of the metal shell (1).

10. A dishwasher, characterized in that The application further relates to a pump shell (100) and a power component (300), the heating device is arranged in the pump shell (100), a sealing ring (200) is arranged at the connecting position of the pump shell (100) and the heating device, the bottom of the heating device is provided with the power component (300), and the power component (300) enables the water flow to pass through the heating device from the water inlet (131) and to be discharged from the water outlet (101) of the pump shell (100).

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