Plasticized inner container and electric water heater

Abstract

The application discloses a plastic inner container and an electric water heater. The plastic inner container comprises a container body made of plastic material, wherein an installation opening is arranged on the container body; an electric heating component for generating heat by electrification; and a flange connecting piece formed with an embedding part and an installation part, wherein the embedding part is embedded in the installation opening, and the electric heating component is arranged on the installation part. The use amount of sheet metal parts is reduced to reduce the overall weight and the manufacturing cost of the electric water heater.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of household appliances, and particularly relates to a plasticized inner container and an electric water heater. BACKGROUND

[0002] At present, water heaters are commonly used household appliances in people's daily life, and the water heaters are divided into electric water heaters and gas water heaters according to different heating sources. The electric water heater is widely used because of its convenient installation. The electric water heater usually comprises an inner container and an electric heater, and the electric heater is arranged in the inner container to heat the water in the inner container through the electric heater.

[0003] In the prior art, in order to reduce the manufacturing cost, the inner container made of plastic material is gradually popularized, but due to the installation requirements of the electric heater, the general plastic inner container only adopts a cylindrical container body and configures a metal end cover at each end of the container body, so as to meet the installation requirements of the electric heater through the metal end cover.

[0004] However, since the two ends of the inner container are supported by metal parts, the overall weight of the inner container is increased, and the manufacturing cost is also high. In view of this, how to design a water heater with reduced overall weight and manufacturing cost is a technical problem to be solved by the present application. SUMMARY

[0005] The present application provides a plasticized inner container and an electric water heater, which reduces the use amount of metal parts to reduce the overall weight and the manufacturing cost of the water heater.

[0006] To achieve the above technical purpose, the present application adopts the following technical scheme:

[0007] In one aspect, the present application provides a plasticized inner container, comprising:

[0008] a container body made of plastic material, wherein the container body is provided with a mounting port;

[0009] an electric heating component for generating heat by electrification;

[0010] a flange connector formed with an embedded part and a mounting part;

[0011] wherein the embedded part is embedded in the mounting port, and the electric heating component is arranged on the mounting part.

[0012] Further, the flange connector comprises a first flange and a second flange, the first flange is embedded in the mounting port and forms the embedded part, and the second flange is threadedly connected to the first flange, and the second flange forms the mounting part.

[0013] Further, the first flange is provided with a threaded hole, the second flange is provided with an external threaded part, and the external threaded part of the second flange is threadedly connected with the threaded hole of the first flange.

[0014] Further, one end of the first flange is provided with a first outward turning edge, and the first outward turning edge is located in the gallbladder body and abuts against the inner wall of the gallbladder body.

[0015] Further, the other end of the first flange is provided with a second outward turning edge, and the second outward turning edge is embedded into the gallbladder body from the inner wall of the mounting port.

[0016] Further, the outer periphery of the second flange is further provided with a support plate, the support plate is provided with a plurality of limiting stops, the gallbladder body located outside the mounting port is provided with a positioning rib, and the positioning rib is used for cooperating with the limiting stop to limit the position of the second flange.

[0017] Further, the outer edge of the support plate is provided with a folded edge structure, the limiting stop is arranged on the folded edge structure, and the free end of the limiting stop is extended to the outside of the folded edge structure in the direction of the positioning rib.

[0018] Further, a sealing ring is arranged between the second flange and the gallbladder body, and the sealing ring surrounds the outer periphery of the mounting port.

[0019] Further, the gallbladder body is blow molded on the flange connector.

[0020] The application further provides an electric water heater, which comprises a shell and an inner gallbladder, the shell is provided with a water inlet pipe and a water outlet pipe, the inner gallbladder adopts the above-mentioned plasticized inner gallbladder, the inner gallbladder is arranged in the shell, and the water inlet pipe and the water outlet pipe are respectively communicated with the inner gallbladder.

[0021] Compared with the prior art, the application has the advantages and positive effects that: by embedding the flange connector in the mounting port of the gallbladder body, the embedded part in the flange connector is embedded into the gallbladder body, at the same time, the mounting part in the flange connector is used to meet the mounting requirements of the electric heating component, the gallbladder body is made of plastic material as a whole, and the electric heating component is mounted in the mounting port by configuring the flange connector made of metal material, so that the gallbladder body is made of plastic material as a whole, the use amount of sheet metal parts is reduced to reduce the overall weight, and the manufacturing cost of the electric water heater is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the plasticized inner liner of the present invention;

[0024] Figure 2 This is a partial exploded view of an embodiment of the plasticized inner liner of the present invention;

[0025] Figure 3 This is a partial cross-sectional view of an embodiment of the plasticized inner liner of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the first flange in one embodiment of the plasticized inner liner of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the second flange in one embodiment of the electric water heater of the present invention. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that in the description of this invention, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Example 1, as Figures 1-5 As shown, this embodiment provides a plasticized inner liner, including:

[0031] The inner tube 1 is made of plastic and has an installation port 11.

[0032] Electric heating element 2, which is used to generate heat when energized;

[0033] The flange connector 3 is formed with an embedded portion and a mounting portion.

[0034] The embedded portion is embedded in the mounting port 11, and the electric heating component 2 is arranged on the mounting portion.

[0035] Specifically, the body 1 of the plasticized inner container is made of plastic material. The specific processing method of the body 1 can refer to the processing method of a conventional plasticized inner container, which is not limited or described here.

[0036] During the processing of the body 1, the embedded portion of the flange connector 3 is integrally formed in the mounting port 11 of the body 1, so that the flange connector 3 is connected to the body 1. In this way, the electric heating component 2 can be mounted and fixed through the mounting portion of the flange connector 3, so as to realize the mounting and fixing of the electric heating component 2 on the body 1.

[0037] Compared with the prior art that uses a metal sealing head to realize the installation of the electric heater, the plasticized inner container in the embodiment only needs to embed the flange connector 3 in the mounting port 11 of the body 1 to meet the installation requirements of the electric heating component 2. The body 1 is made of plastic material as a whole, and the body 1 is blow molded on the flange connector 3 to reduce the amount of use of metal parts, thereby effectively reducing the weight and the manufacturing cost.

[0038] The electric heating component 2 can be an electric heater in a conventional electric water heater, such as an electric heating tube for realizing electric heating. The electric heating tube is fixedly connected to the mounting portion of the flange connector 3 through a mounting disc. The specific structure and assembly method of the electric heating component 2 are not limited or described here.

[0039] In an embodiment, the flange connector 3 includes a first flange 31 and a second flange 32. The first flange 31 is embedded in the mounting port 11 and forms the embedded portion. The second flange 32 is threadedly connected to the first flange 31, and the second flange 32 forms the mounting portion.

[0040] Specifically, the flange connector 3 is composed of two flanges. The first flange 31 is integrally embedded in the mounting port 11 of the body 1 during the processing of the body 1, so that the first flange 31 and the body 1 form an integrated structure. The second flange 32 is mounted on the first flange 31 by screw connection, and the second flange 32 is used to mount and fix the electric heating component 2.

[0041] The two flanges constitute the flange connecting piece 3. On one hand, the first flange 31 is independently embedded in the installation port 11 during plastic forming of the gallbladder body 1, so as to facilitate the forming of the gallbladder body 1. On the other hand, the second flange 32 is threadedly connected to the first flange 31, and the installation end surface of the second flange 32 is located outside the gallbladder body 1, so as to facilitate the fixing and installation of the electric heating component 2 on the second flange 32.

[0042] In some embodiments, in order to facilitate the threaded connection of the first flange 31 and the second flange 32, the first flange 31 is provided with a threaded hole 311, and the outer threaded portion 321 of the second flange 32 is provided outside the second flange 32, and the outer threaded portion 321 of the second flange 32 is threadedly connected to the threaded hole 311 of the first flange 31.

[0043] Specifically, during assembly, the outer threaded portion 321 of the second flange 32 is aligned with the threaded hole 311, and the second flange 32 is rotated to threadedly connect the outer threaded portion 321 to the threaded hole 311, so as to firmly and reliably fix and connect the two flanges together.

[0044] In some embodiments, in order to firmly and reliably embed the first flange 31 in the installation port 11 of the gallbladder body 1, one end of the first flange 31 is provided with a first outward flange 312, which is located inside the gallbladder body 1 and abuts against the inner wall of the gallbladder body 1. Specifically, during the processing of the gallbladder body 1, the first flange 31 is directly embedded in the installation port 11 of the gallbladder body 1, and the gallbladder body 1 is blow molded on the outside of the first flange 31, and the first outward flange 312 of the first flange 31 abuts against the inner wall of the gallbladder body 1, so that the first flange 31 cannot be pulled out of the gallbladder body 1.

[0045] In another embodiment, the other end of the first flange 31 is provided with a second outward flange 313, which is embedded in the gallbladder body 1 from the inner wall of the installation port 11. Specifically, during the processing of the gallbladder body 1, the second outward flange 313 is embedded in the inner wall of the installation port 11, so as to avoid the first flange 31 from falling into the gallbladder body 1 by the second outward flange 313. At the same time, during blow molding, the gallbladder body 1 fills plastic between the first outward flange 312 and the second outward flange 313, so as to improve the connection strength between the first flange 31 and the installation port 11. Wherein, a plurality of blocking ribs 314 are further arranged between the first outward flange 312 and the second outward flange 313, and the blocking ribs 314 are embedded in the inside of the gallbladder body 1 along the thickness of the gallbladder body 1, so as to limit and fix the first flange 31 around its axis direction by the blocking ribs 314, so as to avoid the first flange 31 from rotating when the second flange 32 is tightened.

[0046] In some embodiments, the first flange 31 is embedded in the gallbladder body 1, and the second flange 32 is connected to the first flange 31 by screwing. In order to avoid damage to the gallbladder body 1 caused by the first flange 31 due to over-tightening of the second flange 32, a support plate 322 is provided on the outer periphery of the second flange 32, and a plurality of limiting stops 323 are provided on the support plate 322. A positioning rib 12 is provided on the outer side of the mounting opening 11, and the positioning rib 12 is used to cooperate with the limiting stops to limit the position of the second flange 32.

[0047] Specifically, during assembly, the operator screws the second flange 32 to the first flange 31. During rotation of the second flange 32, the limiting stops gradually approach the positioning rib 12. When the second flange 32 is tightened to a set number of turns, the limiting stops 32 abut against the positioning rib 12 to limit further rotation of the second flange 32. In this way, by cooperation between the limiting stops 323 and the positioning rib 12, the number of turns of the second flange 32 when screwed to the first flange 31 can be limited, so that the axial torsion force borne by the first flange 31 is reduced under the condition that the second flange 32 is stably connected, thereby avoiding damage to the connection between the first flange 31 and the gallbladder body 1 due to excessive torsion force on the first flange 31.

[0048] In some embodiments, in order to facilitate the formation of the limiting stops, a folded edge structure 324 can be provided on the outer edge of the support plate 322, and the limiting stops are formed on the folded edge structure 324. The free end of the limiting stop extends outward of the folded edge structure 324 toward the positioning rib 12. Specifically, the limiting stops are formed on the folded edge structure 324 so that the limiting stops extend in the direction of extension of the threaded portion. During assembly, as the threaded portion is gradually screwed into the threaded hole 311, the limiting stops gradually approach the positioning rib 12 around the outer side of the mounting opening 11, and finally abut against the positioning rib 12 to complete the assembly.

[0049] In the preferred embodiment, in order to improve the sealing of the flange connector 3, the connection part between the flange connector 3 and the body 1 needs to be sealed, specifically, a sealing ring 33 is arranged between the second flange 32 and the body 1, and the sealing ring 33 surrounds the outer periphery of the mounting port 11. Specifically, since the first flange 31 is directly embedded into the mounting port 11, the first flange 31 and the body 1 have good sealing connection. During the tightening of the second flange 32, the second flange 32 will gradually approach the body 1, and then the sealing ring 33 is pressed between the body 1 and the second flange 32. Specifically, one end of the body 1 is provided with a boss 10, and the mounting port 11 is formed on the boss 10, and the sealing ring 33 is clamped between the boss 10 and the second flange 32. Specifically, the boss 10 protrudes from the end of the body 1, and the mounting port 11 is formed on the boss 10. After the second flange 32 is tightened, the sealing ring 33 is pressed between the second flange 32 and the table surface of the boss 10, so as to seal the connection area between the second flange 32 and the body 1.

[0050] The application further provides an electric water heater, which comprises a shell and an inner container, the shell is provided with a water inlet pipe and a water outlet pipe, the inner container is the plasticized inner container, the inner container is arranged in the shell, and the water inlet pipe and the water outlet pipe are communicated with the inner container.

[0051] Specifically, the electric water heater provided by the application adopts the plasticized inner container, the plasticized inner container is arranged in the shell, then water is injected into the plasticized inner container through the water inlet pipe, and the heated water in the plasticized inner container is output from the water outlet pipe.

[0052] The above embodiments are only used to illustrate the technical solutions of the application, but not to limit the application; although the application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can still be modified by those skilled in the art, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed by the application.

Claims

1. A plasticized liner characterized in that, The utility model relates to a plasticizing inner container, which comprises: a container body made of plastic material, the container body being provided with a mounting opening; an electric heating component for generating heat when electrified; a flange connector, which is formed with an embedding portion and a mounting portion; wherein the embedding portion is embedded in the mounting opening, and the electric heating component is arranged on the mounting portion; the flange connector comprises a first flange and a second flange, the first flange being embedded in the mounting opening and forming the embedding portion, and the second flange being threadedly connected to the first flange and forming the mounting portion; one end of the container body is provided with a boss, the boss being formed with a mounting opening, a sealing ring is arranged between the second flange and the container body, the sealing ring being arranged around the outer periphery of the mounting opening, and the sealing ring being clamped between the boss and the second flange; one end of the first flange is provided with a first outwardly turned edge, the first outwardly turned edge being located in the container body and abutting against the inner wall of the container body, the other end of the first flange is provided with a second outwardly turned edge, the second outwardly turned edge being embedded in the container body from the inner wall of the mounting opening, and a plurality of blocking ribs are arranged between the first outwardly turned edge and the second outwardly turned edge, the blocking ribs being embedded in the interior of the container body along the thickness of the container body.

2. The plasticized liner of claim 1, wherein, the first flange is provided with a threaded hole, the second flange is provided with an external threaded portion on the outside thereof, and the external threaded portion of the second flange is threadedly connected to the threaded hole of the first flange.

3. The plasticized liner of claim 1, wherein, the outer periphery of the second flange is further provided with a support plate, the support plate is provided with a plurality of limiting stops, the container body is provided with a positioning rib on the outside of the mounting opening, and the positioning rib is used for cooperating with the limiting stops to limit the position of the second flange.

4. The plasticized liner of claim 3, wherein, the outer edge of the support plate is provided with a folded edge structure, the limiting stops are arranged on the folded edge structure, and the free end of the limiting stops extends to the outside of the folded edge structure in the direction of the positioning rib.

5. The plasticized liner of claim 1, wherein, a sealing ring is arranged between the second flange and the container body, and the sealing ring is arranged around the outer periphery of the mounting opening.

6. The plasticized liner of claim 1, wherein, the container body is blow molded on the flange connector.

7. An electric water heater comprising a shell and an inner container, a water inlet pipe and a water outlet pipe are arranged on the shell, characterized in that, the inner container is the plasticizing inner container according to any one of claims 1-6, the inner container is arranged in the outer shell, and the water inlet pipe and the water outlet pipe are respectively communicated with the inner container.

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