Novel die-casting type heat dissipation waterproof structure of special controller for leisure vehicle

Abstract

The utility model provides a novel die-casting type heat dissipation waterproof structure of a special controller for a leisure vehicle, which comprises a die-casting body base, a PCBA circuit board arranged in the die-casting body base, a plurality of phase line conductive columns arranged at the top of the PCBA circuit board, and a plurality of MOS tube components arranged at the two sides of the phase line conductive columns arranged at the top of the PCBA circuit board. The top of the die-casting body base is provided with a surface cover penetrating through the plurality of phase line conductive columns; a waterproof mask used for covering the surface cover is arranged at the top of the die-casting body base, the side walls of the multiple phase line conductive columns are all sleeved with phase line waterproof rubber pads arranged between the PCBA circuit board and the surface cover, a sealing plate extends from the bottom of the surface cover, and the side wall of the sealing plate is attached to the inner wall of the die-casting body base. And a mounting surface arranged below the MOS tube component is arranged on the lower side of the inner wall of the die-casting body base. The sealing waterproof structure is reasonable in structure, good in sealing waterproof effect and good in heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to a special controller for a leisure vehicle, in particular to a novel die-casting heat dissipation and waterproof structure of the special controller for a leisure vehicle. Background Art

[0002] An electric recreational vehicle is a recreational vehicle that is powered by electricity. Compared with fuel vehicles, electric recreational vehicles do not produce exhaust pollution, are easy to drive, and are suitable for people of different ages. They make little noise during operation, provide a more comfortable driving experience, and have cost advantages in terms of energy consumption. The electric recreational vehicle controller is one of the core components of an electric recreational vehicle. It mainly has the function of adjusting the speed and torque of the motor, realizing the braking function, ensuring driving safety, and ensuring stable operation of the system.

[0003] In the prior art, the two main factors that cause controller failure include: one is that the controller itself is not sealed enough, which causes waterproof failure; the other is that the power MOS tube components are defective. Among them, the design of the popular controller on the market can only be partially waterproof. If the electric leisure vehicle controller is not waterproof enough, it will cause a short circuit in the circuit, affect the normal operation of the controller, damage the internal components, and cannot function normally. In severe cases, water will directly enter the controller, causing short circuits, corrosion and other problems, reducing the reliability of the controller. In addition, the main reason for the failure of the power MOS tube components is that the heat generated by the controller cannot be dissipated out of the shell in time. At present, the main reason is that the heat dissipation structure design is unreasonable, such as the small size of the heat sink, the obstruction of the air duct, etc., the ambient temperature is too high to affect the heat dissipation, the power overload makes the controller heat up, exceeding the heat dissipation capacity, so that the operating temperature of the MOS tube components exceeds its rated temperature, affecting its conductive performance and switching efficiency, shortening its life and accelerating the aging and failure of the device. Now there is an urgent need for a new die-cast heat dissipation waterproof structure for a special controller for leisure vehicles to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a new die-cast heat dissipation and waterproof structure of a special controller for leisure vehicles to solve the problems raised in the above background technology. The utility model has a reasonable structure, good sealing and waterproof effects, and good heat dissipation effects.

[0005] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a new die-cast heat dissipation and waterproof structure of a special controller for a leisure vehicle, comprising:

[0006] A die-cast body base, a PCBA circuit board is arranged inside the die-cast body base, a plurality of phase line conductive columns are arranged on the top of the PCBA circuit board, a plurality of MOS tube components are arranged on both sides of the phase line conductive columns on the top of the PCBA circuit board, a surface cover penetrating the plurality of phase line conductive columns is arranged on the top of the die-cast body base, and a wireless socket is arranged on the top of the PCBA circuit board;

[0007] A waterproof mask for covering the face cover is arranged on the top of the die-cast body base, and the side walls of multiple phase line conductive columns are sleeved with phase line waterproof rubber pads placed between the PCBA circuit board and the face cover. A sealing plate extends from the bottom of the face cover, and the side wall of the sealing plate fits with the inner wall of the die-cast body base;

[0008] A mounting surface placed below the MOS tube components is arranged on the lower side of the inner wall of the die-cast body base, a PCBA circuit board insulating cloth in contact with the bottom of the PCBA circuit board is arranged on the top of the mounting surface, and thermal conductive silicone grease is arranged on the surface of the PCBA circuit board insulating cloth.

[0009] Furthermore, a connecting plate is extended upward from the lower side of the inner wall of the die-cast body base, and the connecting plate is in the shape of a U-shaped U-shaped U-shaped U-shaped protrusion, which is bent at the corners of the connecting plate and is concave inward. A plurality of supporting blocks are evenly distributed on the inner wall of the connecting plate, and a plurality of supporting blocks are provided with supporting positioning grooves matching the side walls of the PCBA circuit board on the tops, and arc grooves matching the arc protrusions are provided at the corners of the PCBA circuit board.

[0010] Furthermore, the surface cover and the bottom of the support block are both provided with a second threaded hole, and the bottom of the die-cast body base is embedded with a fastening bolt inserted into the interior of the support block.

[0011] Furthermore, a plurality of heat dissipation grooves are evenly arranged on the side wall of the die-casting base.

[0012] Furthermore, five phase line conductive columns are provided, of which three phase line conductive columns are horizontally distributed on the top of the PCBA circuit board, and the other two phase line conductive columns are vertically distributed on the top of the PCBA circuit board. A heat sink is provided between the tops of the multiple MOS tube components and is sleeved on the side walls of the three horizontally distributed phase line conductive columns. Three sockets are provided on the top of the heat sink, and the inner walls of the three sockets are provided with T-shaped insulating sleeves sleeved on the side walls of the three horizontally distributed phase line conductive columns. The top and bottom of the T-shaped insulating sleeve are respectively connected to the bottom of the phase line waterproof rubber pad and the top of the PCBA circuit board, and connecting bolts are provided between the heat sink and the PCBA circuit board.

[0013] Furthermore, a through groove is provided on the top of the waterproof mask, a protective seat for protecting the wireless socket is provided on the top of the face cover, the protective seat matches the through groove, a wireless socket waterproof rubber pad is provided on the top of the wireless socket and is placed inside the protective seat, and the side wall of the wireless socket waterproof rubber pad is fitted with the inner wall of the protective seat.

[0014] Furthermore, a connecting tube is provided at the lower corner of the inner wall of the die-cast body base, a connecting block is provided at the position corresponding to the connecting tube on the upper side of the inner wall of the waterproof mask, a connecting groove matching the connecting block is provided at the top corner of the face cover, a first threaded hole is provided on the inner wall of the connecting tube and the top of the face cover, and a fixing bolt is embedded in the top of the waterproof mask, which passes through the connecting block and the face cover in sequence and is connected to the connecting tube.

[0015] Furthermore, a mounting hole is provided at the top of the phase line conductive column, an internal thread is provided inside the mounting hole, and a clamping bolt for clamping the phase line of the external motor and the power terminal head is provided inside the mounting hole.

[0016] Furthermore, the sealing plate and the surface cover are provided with a plurality of guide holes which are through and match the phase line conductive columns. The plurality of phase line conductive columns pass through the sealing plate and the surface cover in sequence. A plurality of capacitor components which are placed inside the surface cover are arranged on the top of the PCBA circuit board. The sealing plate and the surface cover are provided with square grooves on the bottom.

[0017] Furthermore, a sealing groove is formed between the inner wall of the die-casting base and the connecting plate, and a sealant is arranged inside the sealing groove.

[0018] According to the utility model, a novel die-cast heat dissipation waterproof structure of a special controller for a leisure vehicle can block water ingress caused by partial water contact by using a waterproof mask, and use a phase line waterproof rubber pad to prevent water from entering through the gap formed between the edge of the phase line conductive column and the cover. Under the action of the side wall of the sealing plate and the inner wall of the die-cast body base, a waterproof and closed space is formed between the cover and the die-cast body base, thereby improving the sealing of the connection, preventing water from entering and causing damage to the PCBA circuit board, and enhancing the sealing and waterproof effect;

[0019] By using thermal conductive silicone grease on the surface of the PCBA circuit board insulation cloth, the heat conduction speed is accelerated, thereby accelerating the speed of transferring the heat of the MOS tube components on the PCBA circuit board to the die-casting base and conducting it out of the outside world from the side wall of the die-casting base, thereby dissipating the heat in time and enhancing the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 An exploded view of a novel die-cast heat dissipation and waterproof structure of a dedicated controller for a leisure vehicle according to an embodiment of the utility model;

[0022] Figure 2 It is a three-dimensional diagram of a new die-casting heat dissipation and waterproof structure of a special controller for a leisure vehicle according to an embodiment of the utility model;

[0023] Figure 3 It is a three-dimensional diagram of the connection between the face cover and the die-cast body base of a new die-cast heat dissipation and waterproof structure of a special controller for a leisure vehicle according to one embodiment of the utility model;

[0024] Figure 4 A three-dimensional view of the connection between the front cover and the die-cast body base of a novel die-cast heat dissipation and waterproof structure of a dedicated controller for a leisure vehicle according to an embodiment of the utility model from another perspective;

[0025] Figure 5 It is a right side cross-sectional view of the connection between the face cover and the die-cast body base of a novel die-cast heat dissipation and waterproof structure of a dedicated controller for a leisure vehicle according to one embodiment of the utility model;

[0026] Figure 6 It is a three-dimensional diagram of the connection between the PCBA circuit board and the die-cast body base in a new die-casting heat dissipation and waterproof structure of a special controller for a leisure vehicle according to an embodiment of the utility model;

[0027] Figure 7 A three-dimensional view from another perspective of the connection between the PCBA circuit board and the die-cast body base in a new die-cast heat dissipation and waterproof structure of a dedicated controller for a leisure vehicle according to an embodiment of the utility model;

[0028] Figure 8 It is a three-dimensional diagram of the connection between the waterproof mask and the cover in a new die-casting heat dissipation waterproof structure of a dedicated controller for a leisure vehicle according to an embodiment of the utility model;

[0029] In the figure: 1. Waterproof mask; 101. Through slot; 102. Fixing bolt; 103. Connecting block; 2. Cover; 201. Sealing plate; 202. Square slot; 21. Guide hole; 22. Connecting slot; 221. First threaded hole; 23. Protective seat; 3. Phase line waterproof rubber pad; 31. T-shaped insulating sleeve; 4. Phase line conductive column; 41. Mounting hole; 42. Clamping bolt; 5. PCBA circuit board; 51. Arc slot; 52. MOS tube components ; 53, capacitor assembly; 6, sealing groove; 61, sealant; 7, die-casting base; 71, heat sink; 72, mounting surface; 8, connecting plate; 81, arc-shaped protrusion; 9, support block; 91, second threaded hole; 92, support positioning groove; 10, connecting tube; 11, fastening bolt; 12, wireless socket; 121, wireless socket waterproof rubber pad; 13, PCBA circuit board insulating cloth; 14, heat sink; 141, connecting bolt; 142, jack. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] like Figure 1 , Figure 2 and Figure 5 As shown, the utility model provides a technical solution: a new die-cast heat dissipation and waterproof structure of a special controller for a leisure vehicle, comprising:

[0032] A die-cast body base 7, a PCBA circuit board 5 is arranged inside the die-cast body base 7, a plurality of phase line conductive columns 4 are arranged on the top of the PCBA circuit board 5, a plurality of MOS tube components 52 are arranged on both sides of the phase line conductive columns 4 on the top of the PCBA circuit board 5, a surface cover 2 penetrating the plurality of phase line conductive columns 4 is arranged on the top of the die-cast body base 7, a wireless socket 12 is arranged on the top of the PCBA circuit board 5, and the top of the wireless socket 12 penetrates the surface cover 2;

[0033] A waterproof mask 1 for covering the face cover 2 is arranged on the top of the die-cast body base 7, and the side walls of the plurality of phase line conductive columns 4 are sleeved with phase line waterproof rubber pads 3 placed between the PCBA circuit board 5 and the face cover 2. A sealing plate 201 extends from the bottom of the face cover 2, and the side wall of the sealing plate 201 is in contact with the inner wall of the die-cast body base 7, wherein the side wall of the die-cast body base 7 is flush with the side wall of the waterproof mask 1. This design can block water inflow caused by partial water contact by using the waterproof mask 1, and use the phase line waterproof rubber pad 3 to prevent water from entering through the gap formed between the edge of the phase line conductive column 4 and the face cover 2. Under the action of the side wall of the sealing plate 201 in contact with the inner wall of the die-cast body base 7, a waterproof and closed space is formed between the face cover 2 and the die-cast body base 7, thereby improving the sealing of the connection, preventing water from entering and causing damage to the PCBA circuit board 5, and enhancing the sealing and waterproof effect;

[0034] A mounting surface 72 placed below the MOS tube component 52 is provided on the lower side of the inner wall of the die-cast body base 7, and a PCBA circuit board insulating cloth 13 in contact with the bottom of the PCBA circuit board 5 is provided on the top of the mounting surface 72. Thermal conductive silicone grease is provided on the surface of the PCBA circuit board insulating cloth 13. This design accelerates the heat conduction speed by providing thermal conductive silicone grease on the surface of the PCBA circuit board insulating cloth 13, thereby accelerating the speed of transferring the heat of the MOS tube component 52 on the PCBA circuit board 5 to the die-cast body base 7 and conducting the heat from the side wall of the die-cast body base 7 to the outside, thereby dissipating the heat in time and enhancing the heat dissipation effect.

[0035] Reference Figure 1 , Figure 6 and Figure 7, a connecting plate 8 extends upward from the lower side of the inner wall of the die-cast body base 7. The connecting plate 8 is in a shape of a double-square, and arc-shaped protrusions 81 that are recessed inward are bent at the corners of the connecting plate 8. A plurality of support blocks 9 are evenly distributed on the inner wall of the connecting plate 8. Support positioning grooves 92 that match the side walls of the PCBA circuit board 5 are provided at the tops of the plurality of support blocks 9. Arc-shaped grooves 51 that match the arc-shaped protrusions 81 are provided at the corners of the PCBA circuit board 5. This design facilitates the positioning and connection of the PCBA circuit board 5 by using the support positioning grooves 92 on the support blocks 9 and the cooperation of the arc-shaped protrusions 81 and the arc-shaped grooves 51.

[0036] Refer to Figure 1 and Figure 8 , second threaded holes 91 are provided at the bottoms of both the face cover 2 and the support blocks 9. A fastening bolt 11 that is inserted into the support block 9 is embedded at the bottom of the die-cast body base 7. This design facilitates the connection and fixation among the face cover 2, the support blocks 9, and the die-cast body base 7.

[0037] Refer to Figure 1 and Figure 2 , a plurality of heat dissipation grooves 71 are evenly provided on the side wall of the die-cast body base 7. This design speeds up the heat dissipation rate of the die-cast body base 7 by using the plurality of heat dissipation grooves 71 and further enhances the heat dissipation effect.

[0038] Refer to Figure 1 and Figure 6 , five phase conductors 4 are provided. Among them, three phase conductors 4 are horizontally distributed on the top of the PCBA circuit board 5, and the other two phase conductors 4 are vertically distributed on the top of the PCBA circuit board 5. Heat dissipation blocks 14 sleeved on the side walls of the three horizontally distributed phase conductors 4 are provided between the tops of the plurality of MOS tube components 52. Three jacks 142 are provided at the top of the heat dissipation block 14. T-shaped insulating sleeves 31 sleeved on the side walls of the three horizontally distributed phase conductors 4 are provided on the inner walls of the three jacks 142. The top and bottom of the T-shaped insulating sleeve 31 are respectively connected to the bottom of the phase waterproof rubber pad 3 and the top of the PCBA circuit board 5. A connecting bolt 141 is provided between the heat dissipation block 14 and the PCBA circuit board 5. This design facilitates the direct contact heat dissipation of the MOS tube components 52 by using the heat dissipation blocks 14 and enhances the heat dissipation effect. Among them, the three horizontally distributed phase conductors 4 are used to connect to the motor, and the two vertically distributed phase conductors 4 are used to connect to the positive and negative poles of the power supply. The T-shaped insulating sleeves 31 facilitate the insulation between the heat dissipation blocks 14 and the phase conductors 4, and at the same time facilitate the positioning of the heat dissipation blocks 14, which is convenient for fixing with the connecting bolts 141.

[0039] Refer to Figure 2 , Figure 3 and Figure 4A through slot 101 is provided on the top of the waterproof mask 1, and a protective seat 23 for protecting the wireless socket 12 is provided on the top of the cover 2. The protective seat 23 matches the through slot 101. A wireless socket waterproof rubber pad 121 is provided on the top of the wireless socket 12 and is placed inside the protective seat 23. The side wall of the wireless socket waterproof rubber pad 121 fits with the inner wall of the protective seat 23. This design facilitates the protection of the wireless socket 12 by using the protective seat 23, and the through slot 101 facilitates the connection of the wireless socket 12 with an external plug, wherein the external plug belongs to the vehicle cable and motor, and the wireless socket waterproof rubber pad 121 is used to avoid water ingress caused by the gap formed between the edge of the wireless socket 12 and the inner wall of the protective seat 23 of the cover 2.

[0040] Reference Figure 1 , Figure 7 and Figure 8 A connecting tube 10 is provided at the lower corner of the inner wall of the die-casting base 7, a connecting block 103 is provided at the position corresponding to the connecting tube 10 on the upper side of the inner wall of the waterproof mask 1, and a connecting groove 22 matching the connecting block 103 is provided at the top corner of the face cover 2. A first threaded hole 221 is provided on the inner wall of the connecting tube 10 and the top of the face cover 2. A fixing bolt 102 that penetrates the connecting block 103 and the face cover 2 in sequence and is connected to the connecting tube 10 is embedded in the top of the waterproof mask 1. This design facilitates the connection and fixing operation between the face cover 2, the waterproof mask 1 and the die-casting base 7.

[0041] Reference Figure 1 and Figure 6 A mounting hole 41 is provided at the top of the phase line conductive column 4, an internal thread is provided inside the mounting hole 41, and a clamping bolt 42 is provided inside the mounting hole 41 for clamping the phase line and the power terminal head of the external motor. This design facilitates the connection operation between the phase line and the power terminal head of the external motor and the phase line conductive column 4.

[0042] Reference Figure 1 , Figure 5 and Figure 8 The sealing plate 201 and the surface cover 2 are both provided with a plurality of guide holes 21 which are through and match the phase line conductive columns 4. The plurality of phase line conductive columns 4 sequentially penetrate the sealing plate 201 and the surface cover 2. The top of the PCBA circuit board 5 is provided with a plurality of capacitor components 53 which are placed inside the surface cover 2. The sealing plate 201 and the surface cover 2 are both provided with square grooves 202 at the bottom. This design facilitates the placement and installation of the capacitor components 53 and the phase line conductive columns 4 by using the guide holes 21 and the square grooves 202.

[0043] Reference Figure 5 and Figure 7A sealing groove 6 is formed between the inner wall of the die-cast body base 7 and the connecting plate 8, and a sealant 61 is arranged inside the sealing groove 6. This design further improves the sealing between the cover 2 and the die-cast body base 7 to prevent water from entering and causing damage to the PCBA circuit board.

[0044] Reference Figure 1-Figure 8 As an embodiment of the utility model: when the controller needs to be waterproof, the waterproof mask 1 can be used to block water ingress caused by partial water contact, and the phase line waterproof rubber pad 3 is used to prevent water from entering through the gap formed between the edge of the phase line conductive column 4 and the face cover 2. Under the action of the side wall of the sealing plate 201 and the inner wall of the die-cast body base 7, a waterproof and closed space is formed between the face cover 2 and the die-cast body base 7, thereby improving the sealing of the connection, preventing water from entering and causing damage to the PCBA circuit board 5, and enhancing the sealing and waterproof effect. At the same time, the wireless socket waterproof rubber pad 121 is used to prevent water from entering the gap between the edge of the wireless socket 12 and the inner wall of the protective seat 23 of the face cover 2 without affecting the connection between the wireless socket 12 and the external plug.

[0045] When the PCBA circuit board 5 needs to dissipate heat, since the PCBA circuit board insulating cloth 13 is in contact with the PCBA circuit board 5 and the die-cast body base 7 and is placed below the MOS tube component 52, it is convenient to transport the heat of the MOS tube component 52 on the PCBA circuit board 5 to the die-cast body base 7 and discharge it to the outside. At the same time, thermal conductive silicone grease is arranged on the surface of the PCBA circuit board insulating cloth 13 to accelerate the heat conduction speed, thereby accelerating the speed of transporting the heat of the MOS tube component 52 on the PCBA circuit board 5 to the die-cast body base 7 and leading it out of the outside from the side wall of the die-cast body base 7, so that the heat is dissipated in time and the heat dissipation effect is enhanced. At the same time, a plurality of heat dissipation grooves 71 are arranged on the side wall of the die-cast body base 7 to accelerate the heat dissipation speed of the die-cast body base 7, further enhancing the heat dissipation effect. At the same time, under the action of the heat dissipation block 14, the MOS tube component 52 is directly contacted to dissipate heat, the heat dissipation speed is accelerated, and the practicality of the utility model is improved.

[0046] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel die-cast heat dissipation and waterproof structure for a special controller of a recreational vehicle, comprising: A die-cast body base (7), inside which a PCBA circuit board (5) is arranged. On the top of the PCBA circuit board (5), there are multiple phase conductor posts (4). On the top of the PCBA circuit board (5), there are multiple MOS tube components (52) placed on both sides of the phase conductor posts (4). On the top of the die-cast body base (7), there is a face cover (2) passing through multiple phase conductor posts (4). On the top of the PCBA circuit board (5), there is a wireless socket (12); It is characterized in that On the top of the die-cast body base (7), there is a waterproof face mask (1) for covering the face cover (2). On the side walls of multiple phase conductor posts (4), there are phase conductor waterproof rubber pads (3) placed between the PCBA circuit board (5) and the face cover (2). The bottom of the face cover (2) extends with a sealing plate (201), and the side wall of the sealing plate (201) is in fit with the inner wall of the die-cast body base (7); On the lower side of the inner wall of the die-cast body base (7), there is an installation surface (72) placed below the MOS tube components (52). On the top of the installation surface (72), there is a PCBA circuit board insulating cloth (13) in contact with the bottom of the PCBA circuit board (5). The surface of the PCBA circuit board insulating cloth (13) is provided with thermal conductive silicone grease.

2. According to claim 1, a novel die-cast heat dissipation and waterproof structure of a special controller for a leisure vehicle is characterized in that: On the lower side of the inner wall of the die-cast body base (7), a connecting plate (8) extends upward. The connecting plate (8) is in a shape of a rectangle with a hollow center. At the corners of the connecting plate (8), there are arc-shaped protrusions (81) bent inward. On the inner wall of the connecting plate (8), multiple support blocks (9) are evenly distributed. On the top of multiple support blocks (9), there are support positioning grooves (92) matching the side walls of the PCBA circuit board (5). At the corners of the PCBA circuit board (5), there are arc-shaped grooves (51) matching the arc-shaped protrusions (81).

3. The novel die-cast heat dissipation and waterproof structure of a special controller for a leisure vehicle according to claim 2, characterized in that: On the bottom of both the face cover (2) and the support blocks (9), there are second threaded holes (91). At the bottom of the die-cast body base (7), fastening bolts (11) are embedded and inserted into the inside of the support blocks (9).

4. The novel die-cast heat dissipation and waterproof structure of a special controller for a leisure vehicle according to claim 1, characterized in that: On the side wall of the die-cast body base (7), multiple heat dissipation slots (71) are evenly arranged.

5. The novel die-casting heat dissipation and waterproof structure of a special controller for a leisure vehicle according to claim 1 is characterized in that: Five phase line conductive columns (4) are provided, of which three phase line conductive columns (4) are transversely distributed on the top of the PCBA circuit board (5), and the other two phase line conductive columns (4) are longitudinally distributed on the top of the PCBA circuit board (5). A heat sink (14) sleeved on the side walls of the three transversely distributed phase line conductive columns (4) is provided between the tops of the plurality of MOS tube components (52). The heat sink (14) is provided with three plug holes (142) on the top. The inner walls of the three plug holes (142) are provided with T-shaped insulating sleeves (31) sleeved on the side walls of the three transversely distributed phase line conductive columns (4). The top and bottom of the T-shaped insulating sleeve (31) are respectively connected to the bottom of the phase line waterproof rubber pad (3) and the top of the PCBA circuit board (5). A connecting bolt (141) is provided between the heat sink (14) and the PCBA circuit board (5).

6. The novel die-casting heat dissipation and waterproof structure of a special controller for a leisure vehicle according to claim 1, characterized in that: The top of the waterproof mask (1) is provided with a through slot (101); the top of the face cover (2) is provided with a protective seat (23) for protecting the wireless socket (12); the protective seat (23) matches the through slot (101); the top of the wireless socket (12) is provided with a wireless socket waterproof rubber pad (121) placed inside the protective seat (23); the side wall of the wireless socket waterproof rubber pad (121) is in contact with the inner wall of the protective seat (23).

7. The novel die-cast heat dissipation and waterproof structure of a special controller for a leisure vehicle according to claim 1, characterized in that: A connecting tube (10) is provided at the lower corner of the inner wall of the die-cast body base (7); a connecting block (103) is provided at a position corresponding to the connecting tube (10) on the upper side of the inner wall of the waterproof mask (1); a connecting groove (22) matching the connecting block (103) is provided at the top corner of the face cover (2); a first threaded hole (221) is provided on the inner wall of the connecting tube (10) and the top of the face cover (2); and a fixing bolt (102) is embedded in the top of the waterproof mask (1) and passes through the connecting block (103) and the face cover (2) in sequence and is connected to the connecting tube (10).

8. The novel die-cast heat dissipation and waterproof structure of a special controller for a leisure vehicle according to claim 1, characterized in that: The top of the phase line conductive column (4) is provided with a mounting hole (41), the interior of the mounting hole (41) is provided with an internal thread, and the interior of the mounting hole (41) is provided with a clamping bolt (42) for clamping the phase line and the power terminal head of the external motor.

9. The novel die-cast heat dissipation and waterproof structure of a special controller for a leisure vehicle according to claim 1, characterized in that: The sealing plate (201) and the surface cover (2) are both provided with a plurality of guide holes (21) that are through and match the phase line conductive columns (4); the plurality of phase line conductive columns (4) pass through the sealing plate (201) and the surface cover (2) in sequence; the top of the PCBA circuit board (5) is provided with a plurality of capacitor components (53) that are placed inside the surface cover (2); and the bottoms of the sealing plate (201) and the surface cover (2) are both provided with square grooves (202).

10. The novel die-casting heat dissipation and waterproof structure of a special controller for a leisure vehicle according to claim 2, characterized in that: A sealing groove (6) is formed between the inner wall of the die-cast body base (7) and the connecting plate (8), and a sealing glue (61) is arranged inside the sealing groove (6).

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