Water pipe of liquid heater

Abstract

The utility model belongs to the field of liquid heaters, and particularly relates to a water pipe for a liquid heater integrally formed with a shell after die casting. The water pipe of the liquid heater comprises a water inlet pipe, a water outlet pipe, a first pipe section connected with the water inlet pipe and a second pipe section connected with the water outlet pipe, the tail end of the first pipe section and the tail end of the second pipe section are connected through a transition bent pipe, the first pipe section and the second pipe section are both in a plane shape, and an installation gap is formed between the first pipe section and the second pipe section. The utility model designs a water pipe suitable for a liquid heater which is integrally formed with a shell in a die-casting manner.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of liquid heater, especially relate to the water pipe of liquid heater for the integrated moulding with shell after die casting. BACKGROUND

[0002] The existing water heating PTC flow channel is assembled by two or more shells, and the shells are sealed by gluing or sealing ring, which has high requirement on processing precision and sealing design. Because rubber is easy to age, the sealing mode of gluing and sealing ring has the risk of leakage in long-time use. SUMMARY

[0003] In view of the defects in the prior art, the utility model designs a water pipe of liquid heater suitable for integrated die casting with shell.

[0004] The technical scheme of the utility model is as follows:

[0005] The water pipe of liquid heater comprises a water inlet pipe and a water outlet pipe, a first pipe section connected with the water inlet pipe, and a second pipe section connected with the water outlet pipe, the end of the first pipe section and the end of the second pipe section are connected through a transition elbow, and the first pipe section and the second pipe section are both in a plane, and an installation gap is formed between the first pipe section and the second pipe section.

[0006] Further, the first pipe section and the second pipe section are parallel to each other.

[0007] Further, the first pipe section comprises a plurality of straight pipes, one end of the straight pipe at the front end is connected with the water inlet pipe, and one end of the straight pipe at the rear end is connected with the transition elbow, the straight pipes are in the same plane and parallel to each other, and one end of the adjacent straight pipes is connected through a connecting elbow to form a continuous water flow channel.

[0008] Further, the structure of the second pipe section is the same as that of the first pipe section.

[0009] Further, the axis of the water inlet pipe is perpendicular to the axis of the straight pipe.

[0010] Further, the axis of the water inlet pipe is parallel to the axis of the straight pipe.

[0011] Further, the distance between the opposite surfaces of the first pipe section and the second pipe section is between 20-24mm.

[0012] In summary, the utility model has the following advantages:

[0013] The utility model discloses a water pipe of liquid heater, which can be integrally pressure cast with the shell of the liquid heater in the later production process, thereby avoiding the risk of leakage of the flow channel from the design end, reducing the installation of the flow channel, simplifying the production steps, reducing the production cost and improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three -dimensional schematic view of the utility model;

[0015] Figure 2 It is the bottom structure schematic view of the utility model;

[0016] Figure 3 It is the structure schematic view of another layout of the first pipe section of the utility model;

[0017] Figure 4 It is the side structure schematic view of the utility model;

[0018] In the drawing, 1 is the water inlet pipe, 2 is the water outlet pipe, 3 is the first pipe section, 4 is the second pipe section, 5 is the transition elbow, 6 is the installation gap, 30 is the straight pipe, and 31 is the connecting elbow. DETAILED DESCRIPTION

[0019] The present application will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present application and implement it, but the embodiments are not limiting the present application.

[0020] It should be noted that when an element is referred to as "provided on", "fixed on" another element, it can be directly on another element or there can be a middle element. When an element is referred to as "fixed on" another element, or "fixedly connected" with another element, they can be detachably fixed or non-detachably fixed. When an element is referred to as "connected", "rotatably connected" with another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions are only for the purpose of illustration and do not represent the only implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0022] The "first", "second", "third" and the like in the present application are similar and do not represent a specific number and sequence, but are only used for distinguishing names.

[0023] The flow channel of the liquid heater in the prior art is formed on the shell, and then a cover is used to seal the flow channel, and the liquid flows in the flow channel of the shell, which has high requirements for the machining precision of the shell and the sealing design, therefore, the utility model discloses a water pipe of a liquid heater, which can be integrally pressure die formed with the shell, and the water pipe is directly formed in the shell, without additional processing steps and sealing requirements, thereby ensuring the reliability of the liquid heater and reducing the production cost.

[0024] Referring to Figure 1 and Figure 2 As shown in the figure, the water pipe of the liquid heater comprises a water inlet pipe 1 and a water outlet pipe 2, a first pipe section 3 connected with the water inlet pipe, and a second pipe section 4 connected with the water outlet pipe, the end of the first pipe section 3 and the end of the second pipe section 4 are connected through a transition elbow 5, and the first pipe section 3 and the second pipe section 4 are both in a plane, and an installation gap 6 is formed between the first pipe section 3 and the second pipe section 4.

[0025] The utility model discloses a water pipe of a liquid heater, the first pipe section and the second pipe section are all the continuous pipe line that first and last are connected by a plurality of pipes, and the continuous pipe line is respectively in a plane, the transition elbow of connecting the first pipe section and the second pipe section is at the end position of the first pipe section and the second pipe section, and the installation gap is guaranteed the distance between the first pipe section and the second pipe section, and the water pipe and the shell are integrally pressure die formed subsequently, and after the shell is formed, an installation space is formed in the shell between the first pipe section and the second pipe section, the installation of the heating bag of the liquid heater is facilitated, and the transition elbow is located at the edge of the first pipe section and the second pipe section, when the water pipe and the shell are integrally pressure die formed, the transition is completely buried in the shell, and the installation space is not blocked, and the subsequent heating bag is facilitated to install.

[0026] The first pipe section 3 and the second pipe section 4 are parallel to each other, preferably the first pipe section and the second pipe section are parallel to each other, which is convenient for processing and manufacturing, and also facilitates to ensure the distance between the heating bag and the first pipe section and the second pipe section, and is beneficial to the uniformity of heating.

[0027] The specific structure of the first pipe section is further described herein, the first pipe section 3 comprises a plurality of straight pipes 30, specifically 7 straight pipes in the embodiment, one end of the straight pipe 30 at the front end is connected with the water inlet pipe 1, one end of the straight pipe 30 at the rear end is connected with the transition elbow 5, the straight pipes 30 are in the same plane and parallel to each other, one end of adjacent straight pipes is connected by a connecting elbow 31 to form a continuous water flow channel, the structure of the straight pipe and the connecting elbow forms an S-shaped water flow channel, the structure design of the straight pipe and the connecting elbow ensures the length of the water flow channel, and the internal resistance of the water flow in the water flow channel is small, the longer the water flow in the water flow channel, the longer the heating time, thereby ensuring that the water temperature of the water flow passing through the first pipe section and the second pipe section from the water outlet pipe can meet the use requirements.

[0028] The structure of the second pipe section 4 is the same as that of the first pipe section, and the same structure design is adopted, so that processing is facilitated, the equipment investment required for production is reduced, and the production cost of the product is reduced.

[0029] In the embodiment, the positional relationship between the water inlet pipe and the straight pipe is further limited, referring to Figure 2 , the axis of the water inlet pipe is perpendicular to the axis of the straight pipe, or referring to Figure 3 , the axis of the water inlet pipe is parallel to the axis of the straight pipe, the above two layout modes of the water inlet pipe and the straight pipe first ensure that the first pipe section and the second pipe section are both S-shaped flow channel layouts, and secondly, ensure that the liquid has sufficient travel in the first pipe section and the second pipe section, and the heating effect is guaranteed.

[0030] Referring to Figure 4 , the distance between the opposite surfaces of the first pipe section 3 and the second pipe section 4 is between 20-24mm, the distance between the first pipe section and the second pipe section is limited herein, so that after subsequent die casting processing, there is sufficient space between the first pipe section and the second pipe section to form a mounting space.

[0031] In summary, the utility model has the following advantages:

[0032] The utility model discloses a water pipe of a liquid heater, which can be integrally die cast with the shell of the liquid heater in the later production process, thereby avoiding the risk of flow channel leakage from the design end, and also eliminating the installation of the flow channel, simplifying the production steps, reducing the production cost and improving the production efficiency.

[0033] Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

Claims

1. A water pipe for a liquid heater, characterized in that: It includes an inlet pipe and an outlet pipe, a first pipe section connected to the inlet pipe, and a second pipe section connected to the outlet pipe. The ends of the first pipe section and the second pipe section are connected by a transition bend. Both the first pipe section and the second pipe section are planar, and an installation gap is formed between the first pipe section and the second pipe section.

2. The water pipe of the liquid heater according to claim 1, characterized in that: The first and second pipe sections are parallel to each other.

3. The water pipe of the liquid heater according to claim 1, characterized in that... The first pipe section includes several straight pipes. One end of the straight pipe at the front end is connected to the water inlet pipe, and one end of the straight pipe at the rear end is connected to the transition bend. The straight pipes are in the same plane and parallel to each other. One end of adjacent straight pipes is connected by a connecting bend to form a continuous water flow channel.

4. The water pipe of the liquid heater according to claim 3, characterized in that: The structure of the second pipe section is the same as that of the first pipe section.

5. The water pipe of the liquid heater according to claim 3, characterized in that: The axis of the water inlet pipe is perpendicular to the axis of the straight pipe.

6. The water pipe of the liquid heater according to claim 3, characterized in that: The axis of the inlet pipe is parallel to the axis of the straight pipe.

7. The water pipe of the liquid heater according to claim 1, characterized in that: The distance between the opposing surfaces of the first and second pipe sections is between 20 and 24 mm.

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