Internal circulation cooling water tank structure of electric outboard engine
By designing a multi-stage sealing structure with waterproof, leak-proof, and sealing caps in the internal circulating cooling water tank of the electric outboard motor, combined with waterproof slopes and waterproof ribs, the problem of external impurities easily entering the filling port is solved, achieving better waterproof performance and sealing reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-31
AI Technical Summary
The filling port of the existing electric outboard motor internal circulating cooling water tank is easily invaded by external impurities, resulting in a complex overall structure and insufficient waterproof performance.
An internal circulation cooling water tank structure was designed, which adopts a multi-level sealing structure consisting of a waterproof part, a leak-proof part, and a sealing cover. Combined with waterproof slopes and waterproof ribs, a multi-layer waterproof barrier is formed to prevent coolant from overflowing and guide impurities out of the tank.
It achieves multi-layer sealing, enhances waterproof performance, reduces the risk of liquid intrusion, and ensures sealing reliability and waterproof effect.
Smart Images

Figure CN224061175U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of sealed waterproof, more specifically, it relates to a kind of electric outboard motor internal circulation cooling water tank structure. BACKGROUND
[0002] Electric outboard motor main structure has motor, electric control, battery and other components, machine in the running process, motor, electric control, battery parts emit a large amount of heat, motor can generally prevent underwater cooling, battery can be external and can be cooled well, but electric control is generally in the whole machine inside, and if power is larger, it is unable to prevent underwater, at this time, air cooling or water cooling is used to fill the controller, when water cooling is used, it is divided into external circulation and internal circulation, external circulation is easy to cause water pump blockage, damage, and internal circulation is used, cooling water tank is used.
[0003] In prior art, the inventor considers that the overall structure is complex, the liquid adding port is arranged on the outer side, thereby causing the liquid adding port to be in contact with the outside for a long time, and external impurities are easy to enter the cooling water tank. UTILITY MODEL CONTENTS
[0004] One object of the utility model is to increase the waterproof performance of the whole machine while the external liquid adding port is added.
[0005] In view of the deficiencies of the prior art, the utility model aims to provide an electric outboard motor internal circulation cooling water tank structure.
[0006] To achieve the foregoing utility model purposes, the utility model adopts the technical scheme that a support is arranged, a cooling water tank is arranged on the support, the cooling water tank is fixedly connected with the support, a liquid injection pipe is arranged on the cooling water tank, and the liquid injection pipe is in communication with the cooling water tank.
[0007] A waterproof slope is arranged on the upper surface of the cooling water tank, a sealing pad is arranged outside the liquid injection pipe corresponding to the liquid injection pipe, the sealing pad comprises a waterproof part and a leakage prevention part, the inner surface of the waterproof part is in abutment with the outer surface of the liquid injection pipe, and the outer surface of the waterproof part is in abutment with the waterproof slope.
[0008] The lower surface of the leakage prevention part is in abutment with the upper surface of the waterproof slope, a compression cavity is arranged in the leakage prevention part, and the compression cavity is an annular groove.
[0009] Optionally, a sealing bolt is arranged in the liquid injection pipe, a sealing cover is arranged at the upper end of the sealing bolt, a pressing part is arranged on the lower surface of the sealing cover, and the pressing part is an annular structure.
[0010] Optionally, a plurality of waterproof ribs are fixedly arranged on the waterproof slope in an array, and the waterproof ribs are arranged along the length direction of the waterproof slope.
[0011] Optionally, the pressing part and the sealing cover are integrally formed, and the pressing part can be in abutment with the leakage prevention part.
[0012] Optionally, a groove is formed on the upper surface of the sealing cover.
[0013] Optionally, the waterproof part and the leakage prevention part are integrally formed.
[0014] Optionally, the upper end of the waterproof part is higher than the horizontal plane of the waterproof slope.
[0015] Compared with the prior art, the advantages of the utility model include:
[0016] (1) The utility model provides a kind of electric outboard engine internal circulation cooling water tank structure, and the multi-stage sealing structure is optimized by waterproof part, leakage prevention part and sealing cover, and the double abutment of liquid injection pipe and waterproof slope forms first waterproof barrier, to prevent cooling liquid from liquid inlet overflow;Compression cavity is elastically deformed after being compressed by sealing bolt, to further enhance sealing effect, and still can keep sealing reliability under long-term vibration or temperature change;The cooperation design of compression part and leakage prevention part makes sealing cover automatically adjust pressure distribution in fastening process, avoids the sealing failure caused by local overpressure, and realizes the multilayer sealing structure of internal and external space.
[0017] (2) The utility model provides a kind of electric outboard engine internal circulation cooling water tank structure, can guide water flow and splash away from liquid inlet by waterproof slope, inclined upper surface, reduce liquid invasion risk;Waterproof rib and waterproof cavity, the physical barrier formed by the array distribution of waterproof rib, even if a small amount of liquid contacts waterproof slope, will be guided to waterproof cavity and discharged, to further enhance waterproof performance. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0019] Figure 1 It is the overall schematic diagram of a kind of electric outboard engine internal circulation cooling water tank structure in the utility model;
[0020] Figure 2 It is the local schematic diagram of the protruding waterproof slope of a kind of electric outboard engine internal circulation cooling water tank structure in the utility model;
[0021] Figure 3 It is the sectional view schematic diagram of a kind of electric outboard engine internal circulation cooling water tank structure in the utility model;
[0022] Figure 4 It is Figure 3 The local enlarged view of A in the figure;
[0023] Reference numeral: 1, support; 11, cooling water tank; 12, liquid injection pipe; 2, shell; 21, waterproof slope; 3, liquid filling port; 4, sealing gasket; 41, waterproof part; 42, anti-leak part; 43, compression cavity; 5, sealing bolt; 51, sealing cover; 52, groove; 53, compression part; 6, waterproof ridge.
[0024] Wherein, the same components in the drawings are marked with the same reference numerals; the drawings are not drawn according to the actual scale. DETAILED DESCRIPTION
[0025] In view of the deficiencies in the prior art, the present inventors have obtained the technical solution of the present application through long-term research and a large number of practices. The technical solution, its implementation process and principles will be further explained in combination with the drawings in the embodiments of the present application and specific implementation cases.
[0026] It should be noted that the embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application. The described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, the present application covers any alternative, modification, equivalent method and scheme defined by the claims, and all other embodiments obtained by those skilled in the art without creative labor, which belong to the scope of protection of the present application.
[0027] In the description of the present application, "first", "second", "third" and similar words do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "a" and similar words do not represent a quantity limit, but represent the existence of at least one. "Include" or "contain" and similar words mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect.
[0028] In the description of the present application, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, when using two sides, outer sides, upper and lower position terms, it should be understood that they are only used for the convenience of understanding and description, considering that the structure can be facing other positions.
[0029] In the description of the present application, unless otherwise explicitly specified and limited, the technical terms or scientific terms used should be understood as the usual meaning understood by those skilled in the art to which the present application belongs, and the terms "mounting", "connection", "connection" and the like should be understood in a broad sense, for example, it can be fixed connection, it can also be detachable connection, it can also be in contact connection or integral connection; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0030] The embodiments of the utility model intend to introduce and explain the structure composition of the electric outboard engine internal circulation cooling water tank structure and the cooperation relationship between each component structure, unless otherwise specified, the size, material and manufacturing process of each component part in the electric outboard engine internal circulation cooling water tank structure in the embodiments of the utility model can be selected according to the specific circumstances, which is not particularly limited and explained here.
[0031] Further, in order to enable the public to have a better understanding of the utility model, in the following detailed description of the utility model, some specific details are described in detail. The present utility model can also be completely understood without the description of these details for those skilled in the art.
[0032] Embodiment 1
[0033] Please refer to Figures 1-4 As shown in the figure, an electric outboard engine internal circulation cooling water tank structure, including support 1, support 1 is provided with cooling water tank 11, cooling water tank 11 is fixedly connected with support 1, cooling water tank 11 is provided with liquid injection pipe 12, liquid injection pipe 12 is hollow, liquid injection pipe 12 and cooling water tank 11 are communicated with each other;
[0034] Please refer to Figures 1-4 As shown in the figure, support 1 is provided with shell 2, the upper surface of shell 2 is provided with waterproof slope 21; the position corresponding to liquid injection pipe 12 of waterproof slope 21 is provided with liquid inlet 3, the upper surface of liquid injection pipe 12 is inclinedly arranged, liquid injection pipe 12 is provided with sealing pad 4 corresponding to liquid injection pipe 12.
[0035] Please refer to Figures 1-4 As shown in the figure, the sealing gasket 4 includes a waterproof part 41 and a leakage prevention part 42; the waterproof part 41 is integrally formed with the leakage prevention part 42, the waterproof part 41 is coaxially arranged with the liquid injection pipe 12, the inner surface of the waterproof part 41 is in abutment with the outer surface of the liquid injection pipe 12, and the outer surface of the waterproof part 41 is in abutment with the waterproof slope 21; the upper end of the waterproof part 41 is higher than the horizontal plane of the waterproof slope 21; the leakage prevention part 42 is coaxially arranged with the liquid injection pipe 12; the lower surface of the leakage prevention part 42 is in abutment with the upper surface of the waterproof slope 21, and the leakage prevention part 42 is internally provided with a compression cavity 43, which is an annular groove.
[0036] Please refer to Figures 1-4 As shown in the figure, the liquid injection pipe 12 is internally provided with a sealing bolt 5, which is threadedly connected with the liquid injection pipe 12; the upper end of the sealing bolt 5 is provided with a sealing cover 51, which is integrally formed with the sealing bolt 5; the upper surface of the sealing cover 51 is internally provided with a groove 52, which includes but is not limited to a plum blossom shape and a straight line shape; the lower surface of the sealing cover 51 is peripherally provided with a compression part 53, which is an annular structure and is integrally formed with the sealing cover 51; the compression part 53 is in abutment with the leakage prevention part 42.
[0037] Please refer to Figures 1-4 As shown in the figure, a plurality of waterproof ribs 6 are arrayed and fixed on the waterproof slope 21; the waterproof ribs 6 are arranged along the length direction of the waterproof slope 21; and waterproof cavities are arranged between adjacent waterproof ribs 6.
[0038] In use, first, installation and fixation are performed; the bracket 1 is fixed to the specified position of the electric outboard motor by means of bolts, so as to ensure that the bracket 1 is stable and closely adheres to the structure of the outboard motor; then, the cooling water tank 11 is installed: the cooling water tank 11 is placed on the bracket 1 and is fixed to the bracket 1 by means of bolts or buckles, so as to ensure that the water tank and the bracket 1 are not shaken; the sealing gasket 4 is sleeved on the liquid injection pipe 12, so as to ensure that the waterproof part 41 closely adheres to the outer surface of the liquid injection pipe 12, the lower surface of the leakage prevention part 42 is in contact with the upper surface of the waterproof slope 21, and the upper end of the waterproof part 41 is higher than the horizontal plane of the waterproof slope 21.
[0039] Then, the sealing bolt 5 is installed: the sealing bolt 5 is screwed into the liquid injection pipe 12, so as to ensure that the threads are completely engaged and are not loose; the sealing cover 51 is compressed: the sealing cover 51 is rotated by using a tool such as a plum blossom wrench or a straight screwdriver, so as to make the compression part 53 closely abut against the leakage prevention part 42, compress the compression cavity 43 in the leakage prevention part 42, and form secondary sealing; simultaneously, the waterproof ribs 6 are checked: it is confirmed that the waterproof ribs 6 on the waterproof slope 21 are not damaged, and the waterproof cavities are free of sundries, so as to ensure that the drainage function of the waterproof ribs 6 is normal.
[0040] The effect of the embodiment is that: the waterproof part 41, the leakage prevention part 42 and the sealing cover 51 are used to optimize the multi-stage sealing structure, the double abutment of the liquid injection pipe 12 and the waterproof slope 21 forms the first waterproof barrier to prevent the cooling liquid from overflowing from the liquid inlet 3; the elastic deformation of the compression cavity 43 after the compression of the sealing bolt 5 further enhances the sealing effect and maintains the sealing reliability in the long-term vibration or temperature change; the cooperation of the compression part 53 and the leakage prevention part 42 automatically adjusts the pressure distribution of the sealing cover 51 in the fastening process, avoids the sealing failure caused by the local overpressure and realizes the multi-layer sealing structure of the inner and outer spaces.
[0041] The inclined upper surface of the waterproof slope 21 guides the water flow and splashes away from the liquid inlet 3, reduces the liquid invasion risk; the waterproof ridge 6 and the waterproof cavity, the arrayed waterproof ridge 6 forms the physical barrier, even if a small amount of liquid contacts the waterproof slope 21, it will also be guided to the waterproof cavity and discharged, further enhances the waterproof performance.
[0042] It should be understood that the above embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary skilled in the art of the utility model belongs to the technical field, without departing from the concept of the utility model, some simple deductions or substitutions can also be made, any equivalent changes or modifications made according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.
Claims
1. An electric outboard engine internal circulation cooling water tank structure characterized by comprising: The utility model provides a kind of cooling water tank and injection tube sealing structure, including support (1), support (1) is provided with cooling water tank (11), cooling water tank (11) is fixed with support (1), cooling water tank (11) is provided with injection tube (12), injection tube (12) and cooling water tank (11) are communicated with each other; Cooling water tank (11) has waterproof slope (21), injection tube (12) is provided with sealing pad (4) outside injection tube (12) correspondingly, sealing pad (4) includes waterproof part (41) and leakage prevention part (42), the inner surface of waterproof part (41) and the outer surface of injection tube (12) are mutually abutted, the outer surface of waterproof part (41) and waterproof slope (21) are mutually abutted; The lower surface of leakage prevention part (42) and the upper surface of waterproof slope (21) are mutually abutted, and compression cavity (43) is arranged in leakage prevention part (42), and compression cavity (43) is annular groove.
2. The electrically driven outboard engine internal circulation cooling water tank structure according to claim 1, characterized by: Sealing bolt (5) is arranged in injection tube (12), and the upper end of sealing bolt (5) is provided with sealing cover (51), and the lower surface of sealing cover (51) is provided with compression part (53) periphery, and compression part (53) is annular structure.
3. The internal circulating cooling water tank structure of an electrically driven outboard motor according to claim 1, characterized in that: Waterproof slope (21) is arrayed and fixed with a plurality of waterproof ridge (6), and waterproof ridge (6) is arranged along the length direction of waterproof slope (21).
4. The internal circulating cooling water tank structure of an electrically driven outboard motor according to claim 2, characterized in that: Compression part (53) is integrally formed with sealing cover (51), and compression part (53) can be mutually abutted with leakage prevention part (42).
5. The internal circulating cooling water tank structure of an electrically driven outboard motor according to claim 2, characterized in that: The upper surface of sealing cover (51) is provided with groove (52).
6. The internal circulating cooling water tank structure of an electrically driven outboard motor according to claim 1, characterized in that: Waterproof part (41) and leakage prevention part (42) are integrally formed.
7. The electrically driven outboard engine internal circulation cooling water tank structure according to claim 1, characterized by: The upper end of waterproof part (41) is higher than the horizontal plane of waterproof slope (21).