Electric speed controller and remote control model ship

Abstract

The embodiment of the utility model relates to the technical field of remote control model ships, and discloses an electronic speed controller and a remote control model ship, the electronic speed controller comprises a shell, a circuit board, a waterproof structure and a cooling interface, a heat dissipation channel is arranged in the shell, the circuit board is arranged in the shell, the waterproof structure comprises a first sealing plate, a second sealing plate and a sealing piece, and the sealing piece is arranged in the shell. The first sealing plate is arranged at one end of the shell and connected with an output wire rod, the second sealing plate is arranged at the other end of the shell and connected with an input wire rod, and gaps between the shell and the first sealing plate and between the shell and the second sealing plate are filled with the sealing pieces. The cooling interface is arranged on the shell and is communicated with the heat dissipation channel, a heating element on the circuit board is in contact with the shell, and the shell conducts heat through the heat dissipation channel. In this way, the problem that an existing electronic speed controller is insufficient in waterproof reliability can be solved.

Description

Technical Field

[0001] This application relates to the field of remote-controlled model boat technology, and in particular to an electronic speed controller and a remote-controlled model boat. Background Technology

[0002] Remote-controlled model boats are watercraft operated using radio remote control equipment and their own program control devices. They are widely used in leisure and entertainment, racing competitions, and technical research. Currently, the flat-panel ESCs of remote-controlled model boats on the market mainly adopt two waterproofing solutions: 1. The bare PCB board is wrapped in heat-shrink tubing, and both sides are sealed with silicone rubber; 2. The PCB board is coated with a nano-coating protective process before being wrapped in heat-shrink tubing.

[0003] During the implementation of this application, the inventors discovered that existing technical solutions can cause gaps between the wire and silicone rubber during use, allowing water to enter and cause short circuits in components. Alternatively, in high or low temperature environments, especially when exposed to oxygen and water vapor, the nano-coating material may oxidize and fail, or even crack and peel off, affecting waterproof performance. Utility Model Content

[0004] The main technical problem addressed by the embodiments of this application is to provide an electronic speed controller (ESC) that can solve the problem of insufficient waterproof reliability of existing ESCs.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application embodiment is: providing an electronic speed controller (ESC) including a housing, a circuit board, a waterproof structure, and a cooling interface. A heat dissipation channel is provided inside the housing. The circuit board is disposed inside the housing. The waterproof structure includes a first sealing plate, a second sealing plate, and a sealing element. The first sealing plate is disposed at one end of the housing and connected to an output cable. The second sealing plate is disposed at the other end of the housing and connected to an input cable. The sealing element fills the gap between the housing and the first and second sealing plates. The cooling interface is disposed on the housing and communicates with the heat dissipation channel. The heating element on the circuit board is in contact with the housing, and the housing conducts heat through the heat dissipation channel.

[0006] Optionally, the heat dissipation channel includes a water inlet, a water return, and a connecting end. The water inlet is located on the side wall of the housing and communicates with the cooling interface. The water return is located on one side of the housing. The connecting end is located on one side of the housing and communicates with the cooling interface. The bottom of the heat dissipation channel is in direct contact with the heating element on the circuit board to conduct the heat generated by the heating element.

[0007] Optionally, the heat dissipation channel has a U-shaped structure.

[0008] Optionally, the housing is further provided with a sealing device, which includes an opening and a fastener. The opening is located on one side of the housing, and the fastener passes through the opening and is fixedly connected to the housing.

[0009] Optionally, the first sealing plate is provided with a first adhesive part and a first threading part, the first adhesive part is bonded and fixed to the housing, and the first threading part is used to thread the output wire.

[0010] Optionally, the second sealing plate is provided with a second adhesive part and a second threading part, the second adhesive part is bonded and fixed to the housing, and the second threading part is used to thread the input wire.

[0011] Optionally, the first threading part is provided with a plurality of independent first threading holes, and each first threading hole is used to thread an output wire.

[0012] Optionally, both the first sealing plate and the second sealing plate are provided with a waterproof adhesive layer.

[0013] Optionally, the waterproof structure further includes a baffle plate disposed inside the first sealing plate and the second sealing plate.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in the embodiments of this application is to provide a remote-controlled model boat, including any of the above-mentioned electronic speed controllers.

[0015] This application provides a remote-controlled model boat, including a shell, a circuit board, a waterproof structure, and a cooling interface. A heat dissipation channel is provided inside the shell. The circuit board is disposed within the shell. The waterproof structure includes a first sealing plate, a second sealing plate, and a sealing element. The first sealing plate is disposed at one end of the shell and connected to an output cable. The second sealing plate is disposed at the other end of the shell and connected to an input cable. The sealing element fills the gap between the shell and the first and second sealing plates. The cooling interface is disposed on the shell and communicates with the heat dissipation channel. The heating element on the circuit board is connected to the heat dissipation channel. The housing contacts the circuit board, and the heat dissipation channel conducts heat through the housing. By setting the heat dissipation channel inside the housing and making the heat-generating elements on the circuit board directly contact the housing, an efficient heat conduction path is formed, which significantly improves the heat dissipation performance of the ESC and effectively solves the problem of heat accumulation during the operation of the ESC. The unique waterproof structure design includes the connection between the first sealing plate and the output cable, the connection between the second sealing plate and the input cable, and the sealing element filling the gap between the housing and the sealing element, forming a comprehensive sealing protection. This completely solves the water leakage problem caused by the gaps created by the cable pulling in traditional ESCs, and greatly improves the waterproof reliability of the product in complex environments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the electronic speed controller according to an embodiment of this application;

[0018] Figure 2 This is an exploded view of the power switch according to an embodiment of this application;

[0019] Figure 3 This is an exploded view of the electrical control unit (EDU) according to an embodiment of this application.

[0020] The reference numerals in the detailed embodiments are as follows: 100, electronic speed controller; 10, housing; 11, heat dissipation channel; 20, circuit board; 30, waterproof structure; 31, first sealing plate; 32, second sealing plate; 40, cooling interface; 101, water inlet; 102, water return; 103, connection end; 50, sealing device; 51, opening; 52, fastening element; 301, first wire threading part; 311, first wire threading hole; 302, second wire threading part. Detailed Implementation

[0021] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0023] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0024] The electronic speed controllers (ESCs) for remote-controlled model boats have several unique requirements: First, due to high-speed operation in water, the ESCs need to withstand continuous water flow impact and vibration, demanding extremely high waterproof reliability; second, the ESCs bear a heavy load during racing, generating a large amount of heat, and inadequate heat dissipation can lead to performance degradation or even damage; third, remote-controlled model boats have strict requirements regarding weight and size, requiring the ESCs to be as lightweight and miniaturized as possible while maintaining performance; finally, high-speed racing remote-controlled model boats are often used in various water quality environments, such as lakes, rivers, and even seawater, requiring the ESCs to be adaptable to various complex aquatic environments. To address these technical shortcomings, this application proposes an ESC.

[0025] Please see Figure 1 The ESC 100 includes: a housing 10, a circuit board 20, a waterproof structure 30, a cooling interface 40, and a sealing device 50.

[0026] The housing 10 is made of aluminum profile and has an internal heat dissipation channel 11 with a U-shaped structure for heat conduction. The circuit board 20 is located inside the housing 10, and the heat-generating components (such as MOSFETs and capacitors) on it are in direct contact with the housing 10 to facilitate heat conduction.

[0027] Please see Figure 2 The waterproof structure 30 includes a first sealing plate 31, a second sealing plate 32, and a sealing element (not shown). The first sealing plate 31 is disposed at the output end of the housing 10 and connected to the output cable, and the second sealing plate 32 is disposed at the input end of the housing 10 and connected to the input cable. The sealing element (not shown) is potting compound, which fills the gap between the housing 10 and the first sealing plate 31 and the second sealing plate 32, completely covering the circuit board 20 so that its surface is flush with the upper surface of the housing 10.

[0028] A cooling interface 40 is provided on the housing 10 and communicates with the heat dissipation channel 11 for connecting to an external cooling system. The sealing device 50 includes an opening 51 and a fastener 52. The opening 51 is provided on the side wall of the housing 10, and the fastener 52 passes through the opening 51 and is fixedly connected to the housing 10 to prevent water leakage from the side.

[0029] The design of the ESC 100 in this embodiment allows the heat from the MOSFETs and capacitors on the circuit board 20 to be directly conducted to the housing 10 and then dissipated by water flow, effectively improving heat dissipation efficiency. Simultaneously, the sealing treatment of the sealant (not shown) gives the product excellent waterproof performance, enabling reliable operation in complex environments.

[0030] Please see Figure 3 The heat dissipation channel 11 includes an inlet end 101, a return end 102, and a connecting end 103. The inlet end 101 is located on the side wall of the housing 10 and communicates with the cooling interface 40 for introducing coolant. The return end 102 is located on one side of the housing 10 for discharging the coolant that has absorbed heat. The connecting end 103 is located on one side of the housing 10 and communicates with the cooling interface 40 for connecting to an external cooling system. The bottom of the heat dissipation channel 11 is in direct contact with the heat-generating elements on the circuit board 20, for conducting the heat generated by the heat-generating elements. The housing 10 conducts heat through the heat dissipation channel 11, achieving efficient heat dissipation. The entire heat dissipation channel 11 has a U-shaped structure, allowing the coolant to form a stable circulation flow within the housing 10, maximizing heat dissipation efficiency. Furthermore, the housing 10 is made of aluminum profile, which has good thermal conductivity, allowing it to quickly conduct the heat generated by the heat-generating elements on the circuit board 20 to the heat dissipation channel 11, where it is then carried away by the water flow, forming a complete heat dissipation circulation system. This design allows the ESC 100 to maintain a low operating temperature even under high load conditions, significantly improving the product's reliability and service life.

[0031] In this embodiment, the aluminum profile housing 10 and the U-shaped heat dissipation channel 11 are another innovation of the ESC 100. The heat from the MOSFETs and capacitors on the circuit board 20 can be directly conducted to the housing 10 and then carried away by the water flow, forming a complete and efficient heat dissipation circulation system. In actual racing environment testing, even under full load, the temperature of the ESC 100 can be stably controlled within a safe range (not exceeding 70°C), which reduces the operating temperature compared to traditional solutions and effectively avoids performance degradation caused by excessive temperature.

[0032] Furthermore, compared to traditional ESCs, this application eliminates the complex shell structure and redundant waterproof layer design, resulting in a more compact overall structure. The aluminum profile shell 10 provides both good mechanical strength and significantly reduces weight. The actual product weight is lighter and the volume smaller than that of a traditional ESC of the same specifications, enabling the remote-controlled model boat to achieve a better power system mass ratio and improving overall performance.

[0033] Please continue reading. Figure 3 The first sealing plate 31 has a first adhesive portion (not shown) and a first wire-passing portion 301. The first adhesive portion is used to bond and fix it to the housing 10, and the first wire-passing portion 301 is used to pass through the output wire. The second sealing plate 32 has a second adhesive portion and a second wire-passing portion 302. The second adhesive portion is used to bond and fix it to the housing 10, and the second wire-passing portion 302 is used to pass through the input wire.

[0034] In this embodiment of the application, the first wire-passing part 301 is provided with a plurality of independent first wire-passing holes 311, each first wire-passing hole 311 is used to pass through an output wire to ensure that each output wire is insulated from each other and forms a sealed connection with the housing 10. This ensures that each wire can pass through the seal (not shown) independently, avoids mutual interference between wires, and improves the sealing effect.

[0035] In this embodiment, both the first sealing plate 31 and the second sealing plate 32 are provided with a waterproof adhesive layer to further enhance the sealing performance with the housing 10 and the wires. The waterproof structure 30 also includes a baffle disposed inside the first sealing plate 31 and the second sealing plate 32. The baffle is used to define the injection boundary of the potting compound and prevent the potting compound from overflowing during the injection process.

[0036] During assembly, first, lock the cooling interface 40 onto the housing 10, then place the circuit board 20 flat onto the housing 10. Next, thread the first sealing plate 31 at the output end onto it and glue it to the housing 10. Then, glue the second sealing plate 32 on the input end side. Note that the baffles need to be fixed with glue. At this point, there will be gaps on both sides of the baffles that are not sealed. These gaps need to be sealed with silicone rubber with low leveling properties to prevent the potting compound from overflowing during potting, and the silicone rubber itself will not overflow from the gaps. Finally, place the entire product on the potting table. The potting machine can automatically pot the compound according to the set program and amount of compound, filling the bottom shell surface with the compound and completely covering the circuit board 20.

[0037] Preferably, both the first sealing plate 31 and the second sealing plate 32 are self-adhesive sheets.

[0038] In the assembly process of the ESC 100 of this application, firstly, components such as the aluminum profile housing 10, circuit board 202, first sealing plate 31, second sealing plate 32, cooling interface 40, and fasteners 52 are prepared. The first step is to install the cooling interface 40 onto the housing 10, ensuring good communication with the heat dissipation channel 11. The second step is to place the circuit board 20 inside the housing 10, allowing the heat-generating element to directly contact the housing 10. The third step is to pass the output wire through the first through hole 311 of the first sealing plate 31, and then adhesively fix the adhesive portion of the first sealing plate to one end of the housing 10. The fourth step is to pass the input wire through the second through hole 321 of the second sealing plate 32, and then adhesively fix the adhesive portion of the second sealing plate 32 to the other end of the housing 10. The fifth step is to check for gaps in the side panels; if any are found, they are sealed with silicone rubber with low leveling properties. The sixth step is to pass the fasteners 52 through the openings 51 in the side wall of the housing 10 to securely connect the housing 10 and prevent side leakage. Step 7: Place the assembled product on the potting table and use the potting machine to apply the sealant (not shown) according to the preset program until the surface of the potting compound is flush with the upper surface of the housing 10, completely covering the circuit board 202. Step 8: After the sealant (not shown) has cured, conduct a waterproof performance test to verify whether it meets the IP67 protection rating.

[0039] This assembly process is simple and efficient, uses less material, and is easy to operate, which greatly improves production efficiency while ensuring the product's waterproof reliability and heat dissipation performance.

[0040] The first sealing plate 31 and the second sealing plate 32 of this ESC 100 adopt a self-adhesive design, eliminating the need for complex tools and operations during installation. The entire installation process can be completed by one person in a short time, significantly reducing installation time compared to traditional solutions. Furthermore, the standardized design of the cooling interface makes it compatible with most water-cooling systems on the market, facilitating integration into existing remote-controlled model boats.

[0041] This application provides an electronic speed controller (ESC) including a housing 10, a circuit board 20, a waterproof structure 30, and a cooling interface 40. The housing 10 has a heat dissipation channel 11. The circuit board 20 is disposed within the housing 10. The waterproof structure 30 includes a first sealing plate 31, a second sealing plate 32, and a sealing element (not shown). The first sealing plate 31 is disposed at one end of the housing 10 and connected to an output cable. The second sealing plate 32 is disposed at the other end of the housing 10 and connected to an input cable. The sealing element (not shown) fills the gap between the housing 10 and the first and second sealing plates 31 and 32. The cooling interface 40 is disposed on the housing 10 and communicates with the heat dissipation channel 11. The circuit board 20 has a heat dissipation channel 11. The heat-generating element contacts the housing 10, and the housing 10 conducts heat through the heat dissipation channel 11. By setting the heat dissipation channel 11 inside the housing 10 and making the heat-generating element on the circuit board 20 directly contact the housing 10, an efficient heat conduction path is formed, which significantly improves the heat dissipation performance of the ESC 100 and effectively solves the problem of heat accumulation during the operation of the ESC 100. The unique waterproof structure 30 design includes the connection between the first sealing plate 31 and the output cable, the connection between the second sealing plate 32 and the input cable, and the sealing element (not shown) filling the gap between the housing 10 and the sealing element (not shown), forming all-round sealing protection. This completely solves the water leakage problem caused by the gaps caused by cable pulling in the traditional ESC 100, and greatly improves the waterproof reliability of the product in complex environments.

[0042] It should be noted that the first sealing plate 301 and / or the second sealing plate 302 can be an integral sealing structure, which is completely sealed to the housing 10, and the output wire and / or input wire are connected to the internal circuit of the first sealing plate 301 and / or the second sealing plate 302.

[0043] In this embodiment, the ESC 200 employs a first sealing plate 301 and a second sealing plate 302 with an integrally sealed structure. Unlike the previous embodiments, the sealing plate of the integrally sealed structure does not require wiring holes; instead, electrical connections are achieved with the input / output wires through circuitry integrated within the sealing plate.

[0044] In the actual assembly process, the circuit board 20 is first installed inside the housing 10, and then the first sealing plate 301 and the second sealing plate 302 are respectively sealed and connected to both ends of the housing 10. Specifically, waterproof sealant is applied to the contact surface between the sealing plate and the housing 10, and then the sealing plate is fixed to the housing 10 with screws, or a snap-fit ​​design is used, where the sealing plate is tightly locked to the housing 10 using built-in elastic clips. After the sealing plates are installed, potting compound is injected into the sealed cavity formed by the housing 10, the first sealing plate 301, and the second sealing plate 302 to completely cover the circuit board 20, forming all-around waterproof protection.

[0045] This integrated sealing structure improves waterproof reliability, while the integrated circuit connection reduces manual soldering, thus improving production efficiency and product consistency.

[0046] This application also provides an embodiment of a remote-controlled model boat, which includes the aforementioned electronic speed controller (ESC) 100. In the application of the remote-controlled model boat, the ESC 100 of this application adopts an innovative triple waterproof structure design, including a sealed shell 10 and a waterproof structure 30 for filling, forming all-round sealed protection. This design solves the problem of water leakage caused by gaps in the wiring due to long-term use of traditional ESCs. Practical application tests show that the ESC 100 can maintain a complete seal even under the strong vibration and water flow impact generated by high-speed navigation, meeting the IP67 protection level standard, and can work continuously for 30 minutes at a depth of 1 meter without failure.

[0047] Furthermore, the ESC 100 in this application has a simple structure, is lightweight, and is easy to install, making it suitable for applications with strict weight and space requirements, such as remote-controlled model boats. Its high reliability and long service life also significantly reduce the maintenance costs of remote-controlled model boats, improving the overall system's reliability and economy.

[0048] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An electronic speed controller, characterized in that, include: A housing, wherein a heat dissipation channel is provided inside the housing; The circuit board is disposed within the housing; A waterproof structure includes a first sealing plate, a second sealing plate, and a sealing element. The first sealing plate is disposed at one end of the housing and connected to the output cable. The second sealing plate is disposed at the other end of the housing and connected to the input cable. The sealing element fills the gap between the housing and the first sealing plate and the second sealing plate. A cooling interface is provided on the housing and communicates with the heat dissipation channel; The heating element on the circuit board is in contact with the housing, and the housing conducts heat through the heat dissipation channel.

2. The electronic speed controller according to claim 1, characterized in that, The heat dissipation channel includes an inlet end, an outlet end, and a connection end. The water inlet is located on the side wall of the housing and communicates with the cooling interface; the water return is located on one side of the housing; and the connection is located on one side of the housing and communicates with the cooling interface. The bottom of the heat dissipation channel is in direct contact with the heat-generating element on the circuit board to conduct the heat generated by the heat-generating element.

3. The electronic speed controller according to claim 1, characterized in that, The heat dissipation channel has a U-shaped structure.

4. The electronic speed controller according to claim 2, characterized in that, The housing is also provided with a sealing device, which includes an opening and a fastener. The opening is located on one side of the housing, and the fastener passes through the opening and is fixedly connected to the housing.

5. The electronic speed controller according to claim 1, characterized in that, The first sealing plate is provided with a first adhesive part and a first threading part. The first adhesive part is bonded and fixed to the housing, and the first threading part is used to thread the output wire.

6. The electronic speed controller according to claim 5, characterized in that, The second sealing plate is provided with a second adhesive part and a second threading part. The second adhesive part is bonded and fixed to the housing, and the second threading part is used to thread the input wire.

7. The electronic speed controller according to claim 6, characterized in that, The first threading part is provided with multiple independent first threading holes, and each first threading hole is used to thread an output wire.

8. The electronic speed controller according to claim 1, characterized in that, Both the first sealing plate and the second sealing plate are provided with a waterproof adhesive layer.

9. The electronic speed controller according to claim 1, characterized in that, The waterproof structure also includes a baffle plate, which is disposed inside the first sealing plate and the second sealing plate.

10. A remote-controlled model boat, characterized in that, Including the electronic speed controller as described in any one of claims 1-9.

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