A rotationally molded self-cooling radiator for engines
By using rotational molding to create an engine self-cooling tank, the problem of space occupation of the radiator installation position in the prior art is solved by the cooperation of through flow channels and heat dissipation pipes, achieving the effect of quick fixation and uniform heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI AIDI ROTOMOLDING TECH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-30
AI Technical Summary
The existing engine water tank cooling method requires a separate radiator installation location, which increases the size of the equipment, occupies more space, and increases the difficulty of assembly.
The engine self-cooling water tank, which is made by rotational molding, achieves self-cooling by setting multiple through channels and corresponding cooling pipes on the main body of the water tank. The cooling pipes are automatically clamped and fixed after the water tank is rotationally molded, without the need for additional installation positions.
It eliminates the need for pre-reserved heat sink installation positions, offers a quick and convenient fixing method, does not increase the size of the equipment, provides good uniform heat dissipation, and prevents localized heat accumulation.
Smart Images
Figure CN224432656U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water tank technology, specifically to a rotationally molded self-cooling water tank for engines. Background Technology
[0002] The engine water tank, as a heat exchange device that cools the engine through forced water circulation, ensures that the engine can operate continuously within its normal temperature range.
[0003] Engine radiators are made of either metal or plastic, and their primary function is to store coolant. The coolant circulates through the engine, dissipating heat and cooling the engine while simultaneously expelling gases accumulated in the cooling system and steam generated by the engine's high temperatures. This means that the engine radiator itself also needs to dissipate heat during operation.
[0004] Current mainstream water tank cooling methods typically require a separate space for radiator installation, relying on the radiator to achieve cooling. While this method effectively reduces water tank temperature, in practical applications it leads to increased equipment size and space occupation, and also requires consideration of space dimensional compatibility, thus increasing the difficulty of equipment assembly.
[0005] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content
[0006] This invention provides a rotationally molded self-cooling water tank for engines, aiming to solve the technical problems mentioned in the background art.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rotationally molded engine self-cooling water tank, comprising a water tank body and an inlet and an outlet disposed on the water tank body; the water tank body has a first mounting surface and a second mounting surface arranged opposite to each other; one of the inlet and the outlet is disposed on the first mounting surface and the other on the second mounting surface, and both the inlet and the outlet are connected to the internal space of the water tank body; the water tank body is provided with a plurality of through channels along the direction from the first mounting surface to the second mounting surface, and the two ends of each through channel are respectively located on the first mounting surface and the second mounting surface; it also includes a plurality of cooling pipes, each cooling pipe corresponding to each through channel, the outer diameter of the cooling pipe being equal to the inner diameter of the through channel, and the length of the cooling pipe being less than or equal to the length of the through channel.
[0008] The above plan is explained as follows:
[0009] In the above scheme, the through-flow channels are used to guide external airflow to dissipate heat; that is, their purpose is heat dissipation. There can be multiple channels, for example, four.
[0010] In the above scheme, the through flow channel is straight.
[0011] In the above scheme, the through channel is located at the center of the first mounting surface and the second mounting surface. Only in this way can the heat dissipation pipes evenly dissipate the heat inside the water tank body.
[0012] In the above scheme, the heat pipe is made of metal, such as copper or aluminum.
[0013] In the above scheme, the outer diameter of the heat dissipation pipe is equal to the inner diameter of the through flow channel in order to ensure that the entire heat dissipation pipe can play a role in heat dissipation.
[0014] The length of the heat dissipation pipe is less than or equal to the length of the through-flow channel in order to prevent the heat dissipation pipe from being too long and exceeding the through-flow channel, thus affecting the use of the equipment.
[0015] In the above solution, the heat inside the water tank body can be dissipated through the combination of heat dissipation pipes and through-flow channels, thereby reducing the temperature of the water in the tank. Specifically, during the rotational molding of the water tank body, heat dissipation pipes are placed in the formed through-flow channels. After the water tank body has completely cooled down, the heat dissipation pipes are automatically clamped, eliminating the need for other fixing devices. This eliminates the need to reserve installation positions, and the fixing method is quick and convenient without increasing the size of the equipment.
[0016] In summary, unlike existing technologies, this application does not require a pre-set installation location, and its installation method with the heat pipe is quick and convenient.
[0017] In a further technical solution, both the inner and outer walls of the heat dissipation pipe have heat dissipation portions, which are arranged along the length of the heat dissipation pipe.
[0018] The above design improves heat dissipation efficiency.
[0019] A further technical solution, viewed from a cross-sectional perspective, shows that the heat dissipation sections located on the inner and outer walls of the heat pipe are wavy.
[0020] The wavy shape further increases the contact area between the airflow and the heat dissipation pipe.
[0021] A further technical solution is that all the through channels are arranged along the length of the main body of the water tank.
[0022] The above design allows the heat dissipation pipes to evenly dissipate heat to all areas inside the water tank, preventing localized heat buildup.
[0023] A further technical solution is provided in which multiple fixed cylinders are provided inside the water tank body. The fixed cylinders are arranged along the direction from the first mounting surface to the second mounting surface. The two ends of the fixed cylinders are respectively sealed and connected to the inner walls of opposite sides inside the water tank body. The fixed cylinder is a hollow structure with open ends. The internal space of the fixed cylinder is the through flow channel that passes through the first mounting surface and the second mounting surface on the water tank body.
[0024] The above design ensures that the heat pipes are installed more securely in all areas, preventing leakage even from small gaps.
[0025] In a further technical solution, during the rotational molding process of the water tank body, the heat dissipation pipe is placed in the through flow channel. After the water tank body cools down, the through flow channel cools and shrinks, automatically clamping the heat dissipation pipe.
[0026] Based on the above design, the heat dissipation pipe can be quickly and conveniently fixed and installed. That is, when fixing the heat dissipation pipe, the cooling shrinkage and shaping process of the water tank body can be directly used to achieve the fixing.
[0027] In a further technical solution, the heat dissipation part on the outer wall of the heat dissipation pipe is tightly engaged with the inner wall of the through flow channel, forming a heat-conducting component that conducts heat inside the water tank body; the heat dissipation part on the inner wall of the heat dissipation pipe is connected to the external atmosphere, forming a heat dissipation component that exchanges heat between the heat dissipation pipe and the atmosphere.
[0028] Based on the above design, the heat dissipation section on the outer wall of the heat pipe can conduct heat efficiently—its heat conduction area is larger than that of a smooth outer wall; at the same time, the inner wall achieves efficient heat dissipation—its heat dissipation area is larger than that of a smooth inner wall, and its heat exchange area with the atmosphere is larger.
[0029] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.
[0030] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.
[0031] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.
[0032] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.
[0033] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.
[0034] The working principle and advantages of this utility model are as follows:
[0035] This invention utilizes the combination of heat dissipation pipes and a through-flow channel to dissipate heat from the inside of the water tank body, thereby lowering the temperature of the water in the tank. Specifically, during the rotational molding of the water tank body, heat dissipation pipes are placed within the formed through-flow channel. After the water tank body has completely cooled, the heat dissipation pipes are automatically clamped, eliminating the need for other fixing devices. This eliminates the need to reserve installation space, and the fixing method is quick and convenient without increasing the size of the equipment.
[0036] In summary, unlike existing technologies, this application does not require a pre-set installation location, and its installation method with the heat pipe is quick and convenient. Attached Figure Description
[0037] Appendix Figure 1 This is a perspective view of the water tank body in an embodiment of the present utility model;
[0038] Appendix Figure 2 This is a top view of the main body of the water tank in an embodiment of the present utility model;
[0039] Appendix Figure 3 This is a schematic diagram of the main structure of the water tank in an embodiment of this utility model;
[0040] Appendix Figure 4 This is a side view of the main body of the water tank in an embodiment of the present utility model;
[0041] Appendix Figure 5 This is a schematic diagram of the longitudinal section of the water tank body in an embodiment of the present utility model;
[0042] Appendix Figure 6 for Figure 5 A magnified view of part A in the diagram;
[0043] Appendix Figure 7 This is a schematic diagram of the location of the through-flow channel in an embodiment of the present utility model;
[0044] Appendix Figure 8This is a schematic diagram of the cross-sectional structure of the through-flow channel in an embodiment of this utility model.
[0045] In the attached diagrams: 1. Water tank body; 2. Water inlet; 3. Water outlet; 4. First mounting surface; 5. Second mounting surface; 6. Through flow channel; 7. Heat dissipation pipe; 8. Heat dissipation part; 9. Fixing cylinder. Detailed Implementation
[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0047] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.
[0048] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.
[0049] See appendix Figures 1-8 As shown, a rotationally molded engine self-cooling water tank includes a water tank body 1 and a water inlet 2 and a water outlet 3 disposed on the water tank body 1; the water tank body 1 has a first mounting surface 4 and a second mounting surface 5 disposed opposite to each other; one of the water inlet 2 and the water outlet 3 is disposed on the first mounting surface 4 and the other is disposed on the second mounting surface 5, and both the water inlet 2 and the water outlet 3 are in communication with the internal space of the water tank body 1; the water tank body 1 is provided with a plurality of through flow channels 6 along the direction from the first mounting surface 4 to the second mounting surface 5, and the two ends of each through flow channel 6 are respectively located on the first mounting surface 4 and the second mounting surface 5; it also includes a plurality of heat dissipation pipes 7, each heat dissipation pipe 7 is respectively disposed in correspondence with each through flow channel 6, the outer diameter of the heat dissipation pipe 7 is equal to the inner diameter of the through flow channel 6, and the length of the heat dissipation pipe 7 is less than or equal to the length of the through flow channel 6.
[0050] In this embodiment, the through-flow channel 6 is used to guide external airflow through to dissipate heat; that is, its purpose is heat dissipation. There are multiple such channels, for example, four.
[0051] In this embodiment, the through-flow channel 6 is a straight line.
[0052] In this embodiment, the through channel 6 is located at the center of the first mounting surface 4 and the second mounting surface 5. Only in this way can the heat dissipation pipe 7 be evenly dissipated from the water tank body 1.
[0053] In this embodiment, the heat pipe 7 is made of metal, such as copper or aluminum.
[0054] In this embodiment, the outer diameter of the heat dissipation pipe 7 is equal to the inner diameter of the through flow channel 6, in order to ensure that the entire heat dissipation pipe 7 can play a role in heat dissipation.
[0055] The length of the heat dissipation pipe 7 is less than or equal to the length of the through flow channel 6 in order to prevent the heat dissipation pipe 7 from being too long and exceeding the through flow channel 6, thus affecting the use of the equipment.
[0056] In this invention, the heat dissipation pipe 7 and the through-flow channel 6 work together to dissipate heat from the inside of the water tank body 1, thereby reducing the temperature of the water in the tank. Specifically, during the rotational molding of the water tank body 1, the heat dissipation pipe 7 is placed inside the formed through-flow channel 6. After the water tank body 1 has completely cooled down, the heat dissipation pipe 7 is automatically clamped, eliminating the need for other fixing devices. This eliminates the need to reserve an installation location, and the fixing method is quick and convenient without increasing the size of the equipment.
[0057] In summary, unlike existing technologies, this application does not require a pre-set installation position, and its installation method with the heat pipe 7 is quick and convenient.
[0058] Preferably, both the inner and outer walls of the heat dissipation pipe 7 have heat dissipation portions 8, and the heat dissipation portions 8 are arranged along the length direction of the heat dissipation pipe 7.
[0059] The above design improves heat dissipation efficiency.
[0060] Preferably, when viewed from a cross-sectional perspective, the heat dissipation portion 8 disposed on the inner and outer walls of the heat dissipation pipe 7 is wavy.
[0061] The wavy shape further increases the contact area between the airflow and the heat sink 7.
[0062] Preferably, all the through channels 6 are arranged along the length of the water tank body 1.
[0063] The above design allows the heat dissipation pipe 7 to evenly dissipate heat to all areas inside the water tank body 1, preventing localized heat accumulation.
[0064] Preferably, the water tank body 1 is provided with a plurality of fixing cylinders 9, which are arranged along the direction from the first mounting surface 4 to the second mounting surface 5. The two ends of the fixing cylinder 9 are respectively sealed and connected to the inner walls of the opposite sides of the water tank body 1. The fixing cylinder 9 is a hollow structure with open ends, and the internal space of the fixing cylinder 9 is the through flow channel 6 that passes through the first mounting surface 4 and the second mounting surface 5 on the water tank body 1.
[0065] With the above design, the heat pipe 7 is installed more securely in each area, and there will be no leakage due to small gaps in any area.
[0066] Preferably, during the rotational molding process of the water tank body 1, the heat dissipation pipe 7 is placed in the through channel 6. After the water tank body 1 cools down, the through channel 6 cools down and shrinks, automatically clamping the heat dissipation pipe 7.
[0067] Based on the above design, the heat dissipation pipe 7 can be quickly and conveniently fixed and installed. That is, when fixing the heat dissipation pipe 7, the cooling shrinkage and shaping process of the water tank body 1 during rotational molding can be used to achieve the fixing.
[0068] Preferably, the heat dissipation part 8 on the outer side wall of the heat dissipation pipe 7 is tightly engaged with the inner wall of the through flow channel 6, forming a heat-conducting component that conducts heat inside the water tank body 1; the heat dissipation part 8 on the inner side wall of the heat dissipation pipe 7 is connected to the external atmosphere, forming a heat dissipation component that exchanges heat between the heat dissipation pipe 7 and the atmosphere.
[0069] Based on the above design, the heat dissipation part 8 on the outer wall of the heat pipe 7 can conduct heat efficiently—its heat conduction area is larger than that of a smooth outer wall; at the same time, the inner wall achieves efficient heat dissipation—its heat dissipation area is larger than that of a smooth inner wall, and its area for heat exchange with the atmosphere is larger.
[0070] Working principle: During the rotational molding of the water tank body 1, heat dissipation pipes 7 are placed within the formed through-flow channel 6. After the water tank body 1 has completely cooled, the heat dissipation pipes 7 are automatically clamped, eliminating the need for other fixing devices. This eliminates the need to reserve installation positions, and the fixing method is quick and convenient without increasing the size of the equipment. Simultaneously, heat dissipation is achieved through the cooperation of the heat dissipation pipes 7 and the heat dissipation unit 8.
[0071] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A rotationally molded self-cooling water tank for an engine, characterized in that: It includes a water tank body (1) and a water inlet (2) and a water outlet (3) provided on the water tank body (1); The water tank body (1) has a first mounting surface (4) and a second mounting surface (5) arranged opposite to each other; of the water inlet (2) and the water outlet (3), one is arranged on the first mounting surface (4) and the other is arranged on the second mounting surface (5), and both the water inlet (2) and the water outlet (3) are connected to the internal space of the water tank body (1); The water tank body (1) is provided with a plurality of through channels (6) along the direction from the first mounting surface (4) to the second mounting surface (5), and the two ends of each through channel (6) are located on the first mounting surface (4) and the second mounting surface (5) respectively; It also includes multiple heat dissipation pipes (7), each heat dissipation pipe (7) is respectively arranged in a one-to-one correspondence with each through flow channel (6), the outer diameter of the heat dissipation pipe (7) is equal to the inner diameter of the through flow channel (6), and the length of the heat dissipation pipe (7) is less than or equal to the length of the through flow channel (6).
2. The rotationally molded self-cooling water tank for engines according to claim 1, characterized in that: The inner and outer walls of the heat dissipation pipe (7) are provided with heat dissipation parts (8), and the heat dissipation parts (8) are arranged along the length of the heat dissipation pipe (7).
3. The rotationally molded self-cooling water tank for an engine according to claim 2, characterized in that: Viewed from the cross-sectional perspective, the heat dissipation section (8) located on the inner and outer walls of the heat dissipation pipe (7) is wavy.
4. The rotationally molded self-cooling water tank for an engine according to claim 1, characterized in that: All of the aforementioned through channels (6) are arranged along the length of the main body of the water tank (1).
5. The rotationally molded self-cooling water tank for an engine according to claim 1, characterized in that: The water tank body (1) is provided with a plurality of fixed cylinders (9), which are arranged along the direction from the first mounting surface (4) to the second mounting surface (5). The two ends of the fixed cylinders (9) are respectively sealed and connected to the inner walls of the opposite sides inside the water tank body (1). The fixed cylinder (9) is a hollow structure with open ends. The internal space of the fixed cylinder (9) is the through flow channel (6) that passes through the first mounting surface (4) and the second mounting surface (5) on the main body of the water tank (1).
6. The rotationally molded engine self-cooling water tank according to any one of claims 1 to 5, characterized in that: During the rotational molding process of the water tank body (1), the heat dissipation pipe (7) is placed in the through flow channel (6). After the water tank body (1) cools down, the through flow channel (6) cools down and shrinks to automatically clamp the heat dissipation pipe (7).
7. The rotationally molded self-cooling water tank for an engine according to claim 6, characterized in that: The heat dissipation part (8) on the outer side wall of the heat dissipation pipe (7) is tightly engaged with the inner wall of the through flow channel (6) to form a heat conduction component that conducts heat inside the water tank body (1); the heat dissipation part (8) on the inner side wall of the heat dissipation pipe (7) is connected to the external atmosphere to form a heat dissipation component that exchanges heat between the heat dissipation pipe (7) and the atmosphere.