Liquid heater with double-layer S-shaped flow channel for heat exchange

Abstract

The utility model discloses a liquid heater with a double-layer S-shaped flow channel for heat exchange, which comprises a cavity structure, an S-shaped flow channel, an S-shaped flow channel, an S-shaped flow channel, an S-shaped flow channel, an S-shaped flow channel and an S-shaped flow channel, the cavity structure comprises a die-casting aluminum alloy block, and S-shaped circulation grooves are symmetrically formed in the outer wall of the die-casting aluminum alloy block. According to the cavity structure, the electric heating pipe is wrapped by the dense die-casting aluminum alloy block through the die-casting technology, the excellent heat conduction performance of aluminum alloy is utilized, and the electric heating pipe is not prone to falling off. Heat can be rapidly and evenly conducted to the whole cavity structure, a cover plate is welded to the outer portion of the S-shaped circulation groove to form a closed flow channel cavity, closed complete immersion type double-layer parallel circulation heat dissipation is achieved, the design of the double-layer S-shaped circulation groove greatly increases the contact area of liquid and a die-casting aluminum alloy block, the flowing path of the liquid is prolonged, and the heat dissipation efficiency is improved. And the liquid can fully absorb heat when flowing through the flow channel.

Description

Technical Field

[0001] This utility model relates to the field of liquid heater technology, specifically a liquid heater with double-layer S-shaped flow channel heat exchange. Background Technology

[0002] With the rapid development of new energy technologies, battery thermal management systems place stringent demands on the efficiency and stability of equipment. As a key component, the performance of the liquid heater directly affects the battery's operating status and lifespan. Currently, common liquid heaters on the market primarily transfer the heat generated by the heating element to the flowing medium using a metal with high thermal conductivity. However, traditional liquid heaters have some shortcomings.

[0003] Traditional heating elements typically employ an assembly-fitting heat dissipation channel design. This structural design makes it difficult to achieve a tight bond between the heating element and the channel, which not only leads to significant heat loss during the transfer process and reduces heat transfer efficiency, but also makes it difficult to achieve a fully enclosed, immersive heat dissipation mode. Furthermore, the channel form of traditional heaters is simple, with a short flow path for the liquid within the channel and a small contact area with the heating component, making it difficult to fully absorb heat and meet the rapid heating requirements of scenarios such as battery thermal management systems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a liquid heater with a double-layer S-shaped heat exchange channel, which solves the problems of traditional heating element heat dissipation channels, which are difficult to achieve tight bonding, have a single channel form, and cannot fully absorb heat.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A liquid heater with double-layer S-shaped flow channel heat exchange includes: a cavity structure, wherein a housing chamber is fixedly connected to the outer wall of the cavity structure; the cavity structure includes a die-cast aluminum alloy block, wherein S-shaped flow grooves are symmetrically formed on the outer wall of the die-cast aluminum alloy block, an inlet groove is formed on the inner wall of the die-cast aluminum alloy block, and an outlet groove is formed on the inner wall of the die-cast aluminum alloy block on the side away from the inlet groove.

[0009] Preferably, the S-shaped flow channels are arranged in an array along the outer wall of the die-cast aluminum alloy block, and the S-shaped flow channels are symmetrically arranged on the upper and lower sides of the die-cast aluminum alloy block. The interior of the liquid inlet channel and the liquid outlet channel are connected to the interior of the S-shaped flow channels. The S-shaped flow channels provide the liquid with a sufficiently long flow path and a large heat dissipation area. When the liquid flows through these channels, it fully absorbs the heat transferred by the die-cast aluminum alloy block, thereby achieving effective heating.

[0010] Preferably, the outer wall of the die-cast aluminum alloy block is fixedly connected with an inlet pipe and an outlet pipe, and the liquid to be heated flows in from the inlet pipe and then flows out from the outlet pipe.

[0011] Preferably, the liquid inlet pipe is located outside the liquid inlet tank. The liquid to be heated flows in from the liquid inlet pipe, enters the S-shaped flow channels symmetrically arranged on the upper and lower sides of the die-cast aluminum alloy block through the liquid inlet tank, and the liquid outlet pipe is located outside the liquid outlet tank. The fully heated liquid flows out from the liquid outlet tank and enters the subsequent system through the liquid outlet pipe.

[0012] Preferably, a cover plate is symmetrically fixedly connected to the outer wall of the die-cast aluminum alloy block, and an electric heating tube is fixedly connected to the inner wall of the die-cast aluminum alloy block. The electric heating tube generates heat when energized. Due to the die-casting process, the electric heating tube is surrounded by a dense die-cast aluminum alloy block. The good thermal conductivity of aluminum alloy allows heat to be quickly and evenly conducted to the die-cast aluminum alloy block.

[0013] Preferably, the cover plate is disposed outside the S-shaped flow channel. By welding the cover plate to the outside of the S-shaped flow channel, a closed flow channel cavity is formed, realizing closed, fully immersive, double-layer parallel flow heat dissipation.

[0014] (III) Beneficial Effects

[0015] This invention provides a liquid heater with a double-layer S-shaped flow channel heat exchange. It has the following beneficial effects:

[0016] (i) The cavity structure uses a die-casting process to encase the electric heating tube in a dense die-cast aluminum alloy block. Utilizing the excellent thermal conductivity of aluminum alloy, heat can be quickly and evenly conducted to the entire cavity structure. By welding a cover plate to the outside of the S-shaped flow channel to form a closed flow channel cavity, a closed, fully immersive, double-layer parallel flow heat dissipation is achieved. The design of the double-layer S-shaped flow channel greatly increases the contact area between the liquid and the die-cast aluminum alloy block, and extends the flow path of the liquid, allowing the liquid to fully absorb heat when flowing through the flow channel, effectively meeting the needs of rapid heating in scenarios such as battery thermal management systems. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2This is a top view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the upper part of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the present invention.

[0021] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 6 This is a partial cross-sectional structural diagram of the present invention.

[0023] In the diagram: 1. Cavity structure; 11. Die-cast aluminum alloy block; 12. S-shaped flow channel; 13. Liquid inlet channel; 14. Liquid outlet channel; 15. Liquid inlet pipe; 16. Liquid outlet pipe; 17. Cover plate; 18. Electric heating tube; 2. Placement chamber; Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-6 This utility model provides a technical solution: a liquid heater with double-layer S-shaped flow channel heat exchange, including: a cavity structure 1, with a placement chamber 2 fixedly connected to the outer wall of the cavity structure 1; the cavity structure 1 includes a die-cast aluminum alloy block 11, with S-shaped flow grooves 12 symmetrically opened on the outer wall of the die-cast aluminum alloy block 11, an inlet groove 13 opened on the inner wall of the die-cast aluminum alloy block 11, and an outlet groove 14 opened on the inner wall of the die-cast aluminum alloy block 11 on the side away from the inlet groove 13.

[0026] S-shaped flow channels 12 are arranged in an array along the outer wall of the die-cast aluminum alloy block 11, and the S-shaped flow channels 12 are symmetrically arranged on the upper and lower sides of the die-cast aluminum alloy block 11. The interior of the liquid inlet channel 13 and the liquid outlet channel 14 are connected to the interior of the S-shaped flow channels 12. The S-shaped flow channels 12 provide the liquid with a sufficiently long flow path and a large heat dissipation area. When the liquid flows through these channels, it fully absorbs the heat transferred by the die-cast aluminum alloy block 11, thereby achieving effective heating.

[0027] The outer wall of the die-cast aluminum alloy block 11 is fixedly connected with an inlet pipe 15 and an outlet pipe 16. The liquid to be heated flows in from the inlet pipe 15 and then flows out from the outlet pipe 16.

[0028] The liquid inlet pipe 15 is located outside the liquid inlet tank 13. The liquid to be heated flows in from the liquid inlet pipe 15, enters the S-shaped flow channels 12 symmetrically arranged on the upper and lower sides of the die-cast aluminum alloy block 11 through the liquid inlet tank 13, and the liquid outlet pipe 16 is located outside the liquid outlet tank 14. The fully heated liquid flows out from the liquid outlet tank 14 and enters the subsequent system through the liquid outlet pipe 16.

[0029] A cover plate 17 is symmetrically fixedly connected to the outer wall of the die-cast aluminum alloy block 11, and an electric heating tube 18 is fixedly connected to the inner wall of the die-cast aluminum alloy block 11. The electric heating tube 18 generates heat when energized. Due to the die-casting process, the electric heating tube 18 is surrounded by a dense die-cast aluminum alloy block 11. The good thermal conductivity of aluminum alloy allows heat to be quickly and evenly conducted to the die-cast aluminum alloy block 11.

[0030] The cover plate 17 is set outside the S-shaped flow channel 12. By welding the cover plate 17 to the outside of the S-shaped flow channel 12, a closed flow channel cavity is formed, realizing closed, fully immersive, double-layer parallel flow heat dissipation.

[0031] In use, the mounting chamber 2 outside the cavity structure 1 is used to install the power supply device. The electric heating tube 18 is powered on and heats up. Due to the die-casting process, the electric heating tube 18 is surrounded by a dense die-cast aluminum alloy block 11. The good thermal conductivity of aluminum alloy allows the heat to be quickly and evenly conducted to the die-cast aluminum alloy block 11. At this time, the liquid to be heated flows in from the liquid inlet pipe 15, enters the S-shaped flow channels 12 symmetrically arranged on the upper and lower sides of the die-cast aluminum alloy block 11 through the liquid inlet groove 13. The S-shaped flow channels 12 provide the liquid with a sufficiently long flow path and a large heat dissipation area. When the liquid flows through these channels, it fully absorbs the heat transferred by the die-cast aluminum alloy block 11, thus achieving effective heating.

[0032] During the liquid flow process, the design of the double-layer S-shaped flow channel 12 allows the liquid to flow in parallel within the cavity. This not only increases the contact area between the liquid and the die-cast aluminum alloy block 11 and optimizes the liquid flow path, but also reduces flow resistance. Compared with the assembly and bonding method of heating elements and heat dissipation channels in traditional heaters, by welding the cover plate 17 to the outside of the S-shaped flow channel 12 to form a closed flow channel cavity, a closed, fully immersed, double-layer parallel flow heat dissipation is achieved, avoiding heat loss and further improving heat transfer efficiency. Finally, the fully heated liquid flows out from the outlet tank 14 and enters the subsequent system through the outlet pipe 16, meeting the requirements for heat dissipation and flow resistance under different operating conditions.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] 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 liquid heater with double-layer S-shaped flow channel heat exchange, characterized in that, include: A cavity structure (1) is provided, and a placement chamber (2) is fixedly connected to the outer wall of the cavity structure (1). The cavity structure (1) includes a die-cast aluminum alloy block (11), the outer wall of the die-cast aluminum alloy block (11) is symmetrically provided with S-shaped flow grooves (12), the inner wall of the die-cast aluminum alloy block (11) is provided with a liquid inlet groove (13), and the inner wall of the die-cast aluminum alloy block (11) away from the liquid inlet groove (13) is provided with a liquid outlet groove (14).

2. A liquid heater with double-layer S-shaped flow channel heat exchange according to claim 1, characterized in that: The S-shaped flow channels (12) are arranged in an array along the outer wall of the die-cast aluminum alloy block (11), and the S-shaped flow channels (12) are symmetrically arranged on the upper and lower sides of the die-cast aluminum alloy block (11). The interior of the liquid inlet channel (13) and the liquid outlet channel (14) are connected to the interior of the S-shaped flow channels (12).

3. A liquid heater with double-layer S-shaped flow channel heat exchange according to claim 1, characterized in that: The outer wall of the die-cast aluminum alloy block (11) is fixedly connected with an inlet pipe (15) and an outlet pipe (16).

4. A liquid heater with double-layer S-shaped flow channel heat exchange according to claim 3, characterized in that: The inlet pipe (15) is located outside the inlet tank (13), and the outlet pipe (16) is located outside the outlet tank (14).

5. A liquid heater with double-layer S-shaped flow channel heat exchange according to claim 1, characterized in that: The outer wall of the die-cast aluminum alloy block (11) is symmetrically fixed with a cover plate (17), and the inner wall of the die-cast aluminum alloy block (11) is fixed with an electric heating tube (18).

6. A liquid heater with double-layer S-shaped flow channel heat exchange according to claim 5, characterized in that: The cover plate (17) is located outside the S-shaped flow channel (12).

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