Heat preservation structure of water heater and water heater

By adopting a multi-tank unit design and a multi-layer vacuum insulation layer structure in the electric water heater, the problem of rapid heat loss in traditional electric water heaters is solved, achieving rapid heating and heat preservation effects, and improving the heat preservation performance of the water heater.

CN224080396UActive Publication Date: 2026-04-03HUIZHOU BEIDA MUGE NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional electric water heaters suffer from rapid heat loss and slow heating due to their insulation structure. In particular, the large container structure results in poor insulation and an inability to quickly adjust the water temperature.

Method used

It adopts a multi-tank unit design, with each tank unit containing a heating rod and a magnesium rod. Multiple layers of vacuum insulation are set on the outer side of the tank unit and the inner wall of the outer shell, including inner and outer plate layers and a vacuum space of foam material, combined with an all-metal anti-radiation screen layer to improve the heat insulation performance.

Benefits of technology

It achieves rapid heating and heat preservation, reduces heat loss, and can maintain the set water temperature for a short time, thus improving the heat preservation efficiency of the water heater.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water heaters, in particular to a heat preservation structure of a water heater and the water heater. The heat preservation structure of the water heater comprises a shell and an inner container, the inner container is arranged in the shell and divided into a plurality of inner container units, a heating rod is arranged in each inner container unit, each inner container unit is connected with a water inlet pipe and a water outlet pipe, a first vacuum heat insulation layer is arranged on the outer side wall of each inner container unit, and a second vacuum heat insulation layer is arranged on the outer side wall of each inner container unit. According to the heat preservation structure of the water heater, heat preservation can be well conducted on hot water in the water tank, the hot water can be rapidly heated, and the water body can be kept at the set temperature within a short time.
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Description

Technical Field

[0001] This utility model relates to the field of water heater technology, specifically to a water heater insulation structure and a water heater. Background Technology

[0002] Currently, the insulation methods for electric water heaters mainly rely on improvements in the performance of insulation materials, especially the application of polyurethane and vacuum insulation layers (VIP). However, these technologies mostly focus on modifying the insulation materials themselves, with less emphasis on innovation in the insulation structure. Traditional electric water heaters typically heat and keep the hot water in a large container. While this structure is simple, the large container space allows for easy heat loss, limiting the insulation effect. Furthermore, the large container space prevents rapid heating of the water and hinders quick replenishment of heat when the water temperature drops. Utility Model Content

[0003] The purpose of this invention is to provide a water heater insulation structure that avoids the shortcomings of the prior art. This water heater insulation structure can effectively keep the hot water in the tank warm and can quickly heat the hot water, so that the water can maintain the set temperature for a short time.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] Provides water heater insulation structure, including:

[0006] shell,

[0007] The inner liner is located inside the outer shell. The inner liner is divided into several inner liner units, each containing a heating rod and a magnesium rod, and each inner liner unit is connected to an inlet pipe and an outlet pipe.

[0008] Each inner liner unit has a first vacuum insulation layer on its outer side wall, and the outer shell has a second vacuum insulation layer on its inner wall surface.

[0009] In some implementations, the inner liner units are arranged in a matrix within the outer shell.

[0010] In some implementations, four inner liner units are provided.

[0011] In some embodiments, both the first vacuum insulation layer and the second vacuum insulation layer include a plate layer, the plate layer forming the configuration of the insulation layer, the plate layer being composed of an inner liner layer and an outer liner layer, the space between the inner liner layer and the outer liner layer being filled with foam material, a vacuum space being provided between the foam material, the vacuum space extending along the configuration of the plate layer.

[0012] In some embodiments, the foam material is a polyurethane foam material.

[0013] In some embodiments, the vacuum space is sealed by an all-metal anti-radiation shield.

[0014] In some embodiments, the inner wall surface of the all-metal anti-radiation screen layer is formed as a corrugated layer.

[0015] In some embodiments, the vacuum space is filled with argon gas.

[0016] In some embodiments, the inlet pipes of each inner tank unit converge into a main inlet pipe, and the outlet pipes of each inner tank unit converge into a main outlet pipe.

[0017] This utility model discloses a water heater insulation structure that divides the inner tank of the water tank into multiple inner tank units. Each inner tank unit is equipped with a first vacuum insulation layer, thus dividing the water tank into multiple insulation structures. The outer shell containing the multiple inner tank units is further equipped with a second vacuum insulation layer, enabling multi-layer insulation and preventing the problem of heat loss easily in a large water tank. At the same time, each inner tank unit is equipped with an individual heating element, which allows for rapid heating of the small space and enables the water to maintain the set temperature for a short period of time.

[0018] A water heater is also provided, including the above-mentioned water heater insulation structure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the heat preservation structure of the water heater according to an embodiment of the present utility model.

[0020] Attached Figure

[0021] 1. Inner tank unit; 4. Heating rod; 5. Water inlet pipe; 6. Water outlet pipe; 7. First vacuum insulation layer; 8. Second vacuum insulation layer; 9. Inner lining layer; 10. Outer lining layer; 11. Vacuum space; 12. Main water inlet pipe; 13. Main water outlet pipe; 14. Magnesium rod. Detailed Implementation

[0022] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0023] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0024] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Example 1

[0025] The water heater insulation structure disclosed in this embodiment is as follows: Figure 1 As shown, it includes:

[0026] The outer casing, which constitutes the water tank of the water heater,

[0027] The inner liner is located inside the outer shell and is divided into several inner liner units 1. Each inner liner unit 1 is equipped with a heating rod 4 and a magnesium rod 14, and each inner liner unit 1 is connected to a water inlet pipe 5 and a water outlet pipe 6.

[0028] The inner tank is used to store hot water. The inner tank is divided into multiple inner tank units 1, which can separately keep the hot water in the water tank warm and heat it. Each inner tank unit 1 is used to store the corresponding amount of hot water.

[0029] Each inner liner unit 1 has a first vacuum insulation layer 7 on its outer side wall, and the outer shell has a second vacuum insulation layer 8 on its inner wall surface.

[0030] A first vacuum insulation layer 7 is provided on the outer wall of each inner liner unit 1. The first vacuum insulation layer 7 provides the first heat preservation for each inner liner unit 1. A second vacuum insulation layer 8 is provided on the outer shell to provide the second heat preservation for each inner liner unit 1.

[0031] In this embodiment, each inner liner unit 1 is arranged in a matrix inside the outer shell.

[0032] The matrix arrangement of the inner tank units 1 allows for better arrangement of each inner tank unit 1, resulting in a more compact internal structure of the water tank.

[0033] In this embodiment, four inner liner units 1 are provided.

[0034] The four inner tank units 1 can effectively control the space occupied inside the water tank.

[0035] In this embodiment, both the first vacuum insulation layer 7 and the second vacuum insulation layer 8 include a plate layer. The plate layer forms the configuration of the insulation layer. The plate layer is composed of an inner liner layer 9 and an outer liner layer 10. Foam material is filled between the inner liner layer 9 and the outer liner layer 10. A vacuum space 11 is provided between the foam material. The vacuum space 11 extends along the configuration of the plate layer.

[0036] The two types of vacuum insulation layers described above have similar structures, both containing plate layers. The inner liner 9 is used for direct contact with the object being insulated, while the outer liner 10 protects the entire insulation structure. Foam material is filled between the inner liner 9 and the outer liner 10. Foam material typically has good insulation properties because it contains a large number of air or gas pores, which reduce heat conduction.

[0037] A vacuum space 11 is also provided between the foam materials. Vacuum is an excellent thermal insulation medium because heat is difficult to conduct through a vacuum.

[0038] The vacuum space 11 extends along the configuration of the plate, which means that the shape of the vacuum space 11 matches the shape of the plate, thus forming a continuous insulation area throughout the insulation layer.

[0039] By combining foam material and vacuum space 11, this insulation layer can effectively reduce heat transfer. The foam material itself has insulation properties, while vacuum space 11 further blocks heat conduction, making the insulation effect more significant.

[0040] The presence of the inner liner 9 and the outer liner 10 provides structural support, preventing the foam material from deforming or being damaged during use, thereby ensuring the long-term stability of the insulation layer.

[0041] The foam material is polyurethane foam.

[0042] The vacuum space 11 is sealed by an all-metal anti-radiation screen layer.

[0043] The all-metal anti-radiation shield reduces heat transfer by reflecting and blocking thermal radiation. Metal materials have high reflectivity, effectively reflecting thermal radiation and thus reducing heat conduction. The metal anti-radiation shield not only provides insulation but also acts as a sealing layer to maintain the vacuum level of the vacuum space 11. The vacuum environment significantly reduces convection and conduction heat transfer, further enhancing the insulation effect.

[0044] Metallic materials have high mechanical strength and durability, and can withstand the pressure of external atmospheric pressure on the vacuum insulation layer, preventing the insulation layer from deforming or being damaged.

[0045] In this embodiment, the inner wall surface of the all-metal anti-radiation screen layer is formed as a corrugated layer.

[0046] The corrugated layer, through its special geometry, increases the complexity of the heat conduction path, thereby effectively reducing heat conduction efficiency. This design can further improve the thermal insulation performance of vacuum insulation layers.

[0047] Corrugated structures possess high specific strength and specific modulus, significantly enhancing the impact and shear resistance of insulation layers. The geometric parameters of the corrugated layer (such as amplitude and wave number) have a significant impact on heat transfer performance. Corrugated walls can enhance heat transfer efficiency by altering fluid flow characteristics; simultaneously, in insulation applications, corrugated structures can effectively suppress thermal convection.

[0048] In this embodiment, the vacuum space 11 is filled with argon gas.

[0049] In this embodiment, the water inlet pipes 5 of each inner tank unit 1 converge to the main water inlet pipe 12, and the water outlet pipes 6 of each inner tank unit 1 converge to the main water outlet pipe 13.

[0050] The inner tank unit 1 is the basic component of the system, and each unit has its own inlet pipe 5 and outlet pipe 6. These units may be used for heating, cooling, storage, or other fluid handling functions.

[0051] The inlet pipes 5 of all inner tank units 1 converge into a main inlet pipe 12, and the outlet pipes 6 of all inner tank units 1 converge into a main outlet pipe 13. This design allows for centralized distribution and recycling of fluids through the main pipeline, facilitating control and management.

[0052] The fluid enters each inner tank unit 1 from the main inlet pipe 12, and after being processed, it converges from the outlet pipes 6 of each inner tank unit 1 to the main outlet pipe 13. This centralized distribution and recycling method can improve the efficiency and reliability of the system.

[0053] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0054] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water heater insulation structure, characterized in that, The application relates to a water heater, which comprises the following parts: an outer shell, an inner container arranged in the outer shell, the inner container being divided into a plurality of inner container units, each inner container unit being provided with a heating rod and a magnesium rod, and each inner container unit being connected with a water inlet pipe and a water outlet pipe, an outer side wall of each inner container unit being provided with a first vacuum heat insulation layer, and an inner wall surface of the outer shell being provided with a second vacuum heat insulation layer.

2. The water heater insulation structure of claim 1, wherein The inner container units are arranged in a matrix in the outer shell.

3. The water heater insulation structure of claim 2, wherein The water heater is provided with four inner container units.

4. The water heater insulation structure of claim 3, wherein The first vacuum heat insulation layer and the second vacuum heat insulation layer each comprise a plate layer, the plate layer constituting the configuration of the heat insulation layer, the plate layer being composed of an inner lining layer and an outer lining layer, a foamed material being filled between the inner lining layer and the outer lining layer, a vacuum space being arranged between the foamed materials, and the vacuum space extending along the configuration of the plate layer.

5. The water heater insulation structure of claim 4, wherein The foamed material is polyurethane foamed material.

6. The water heater insulation structure of claim 4, wherein The vacuum space is sealed by a full-metal anti-radiation screen layer.

7. The water heater insulation structure of claim 6, wherein An inner wall surface of the full-metal anti-radiation screen layer constitutes a corrugated layer.

8. The water heater insulation structure of claim 4, wherein The vacuum space is filled with argon.

9. The water heater insulation structure of claim 1, wherein The water inlet pipes of the inner container units converge into a main water inlet pipe, and the water outlet pipes of the inner container units converge into a main water outlet pipe.

10. A water heater, characterized by The water heater is provided with the heat insulation structure of any one of claims 1-9.