Waterproof battery box of remote control car

Abstract

The utility model relates to a waterproof battery box of a remote control car. An inner left contact and an inner right contact are arranged in a fixed box, a battery pack is arranged in an inner cavity of an inner box, a positive electrode of the battery pack is connected with the inner left contact through an outer left contact, a negative electrode of the battery pack is connected with the inner right contact through an outer right contact, an opening in the upper end of the inner box is connected with an upper cover through a sealing ring, and a battery assembly is clamped in the fixed box. The positive electrode groove and the negative electrode groove are both formed in the outer side wall of the fixing box and connected with the inner left contact and the inner right contact respectively, the switch base is connected with the positive electrode groove and the negative electrode groove in an abutting mode, the battery pack and the controller form a loop through the switch base, and the switch base presses the battery assembly into the fixing box. The battery pack is covered by the inner box and the upper cover, the battery pack is wrapped in the inner box, the battery pack is clamped in the fixed box, the switch base is transversely arranged on the battery pack, the power supply is switched on while the battery pack is pressed, quick disassembly is realized, and water is prevented from entering the battery pack.

Description

Technical Field

[0001] The utility model belongs to the technical field of water - proof for remote - controlled cars, and particularly relates to a water - proof battery box for a remote - controlled car. Background Technique

[0002] At the present stage, the types of toys are becoming more and more diverse, and various toys are constantly being developed and designed. Among them, the remote - controlled car is one of the toy types suitable for children of all ages. Because of its diverse playing methods and being suitable for little boys who like vehicles, it is widely popular. However, during the use of the remote - controlled car, it is inevitable to encounter puddles or use it in rainy weather. And the driving energy source of the remote - controlled car depends on the power supply. At present, for the convenience of replacement, the power supply still uses a detachable battery box. However, the detachable battery has a problem of being afraid of water ingress. In order to achieve the function of preventing water, the current solution is to fix it by using a sealing ring and tightening screws to prevent water ingress. However, the way of tightening screws is still not convenient for disassembly and not convenient for quickly replacing the battery. Content of the Utility Model

[0003] To solve the above - mentioned technical problems, the utility model provides a water - proof battery box for a remote - controlled car. By setting the battery assembly to be composed of an inner box and an upper cover that are closed, the battery group is wrapped therein, and then the battery assembly is clamped in the fixed box. The switch base is bent and placed horizontally on the battery assembly, pressing the battery assembly and connecting the power supply at the same time, realizing quick disassembly and preventing the battery assembly from getting water.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A water - proof battery box for a remote - controlled car includes a fixed box, a battery assembly and a switch assembly. The fixed box is fixedly arranged at the bottom of the remote - controlled car. The fixed box is provided with an inner left contact and an inner right contact inside. A clamping hole communicating with the inner cavity is arranged on one side wall of the fixed box, and a pressing groove penetrating through the upper opening of the fixed box is arranged on the other side wall of the fixed box.

[0006] The battery assembly includes an inner box, a battery pack, an upper cover, a sealing ring, a clamping part, and a pressing part. The outer left contact and the outer right contact are provided on the inner box. The battery pack is arranged in the inner cavity of the inner box. The positive electrode of the battery pack is connected to the inner left contact through the outer left contact, and the negative electrode of the battery pack is connected to the inner right contact through the outer right contact. The upper end opening of the inner box is connected to the upper cover through a sealing ring. Sealing half-grooves are provided on both the upper end opening of the inner box and the lower end surface of the upper cover. When the inner box abuts against the upper cover, the two groups of sealing half-grooves enclose a sealing groove, and the sealing ring is arranged in the sealing groove. The battery assembly is clamped in the fixed box. The clamping part includes an upper clamping seat provided on the upper cover and a lower clamping seat provided on the inner box. After the upper clamping seat and the lower clamping seat abut against each other, they are inserted into the clamping hole together. The pressing part includes an upper pressing plate provided on the upper cover and a lower pressing plate provided on the inner box. The upper pressing plate and the lower pressing plate abut against each other. The bottom of the lower pressing plate abuts against the pressing groove, and the bottom of the switch seat abuts against the upper end surface of the upper pressing plate. An upper edge plate extending upward is provided at the end of the upper pressing plate, and a lower edge plate extending upward is provided at the end of the lower pressing plate. The upper edge plate and the lower edge plate abut against each other. A communication cavity communicating with the sealing groove is provided between the upper pressing plate and the lower pressing plate. The upper end surfaces of the upper edge plate and the lower edge plate are flush with the upper end surface of the upper cover, and a fastening part facing the upper cover is provided at the end of the upper edge plate.

[0007] The switch assembly includes a positive electrode groove, a negative electrode groove, a switch seat, a controller, and a guiding groove. The positive electrode groove and the negative electrode groove are both arranged on the outer side wall of the fixed box and are respectively connected to the inner left contact and the inner right contact. The switch seat is respectively in abutting connection with the positive electrode groove and the negative electrode groove. The positive electrode groove and the negative electrode groove are respectively arranged on the left and right sides of the pressing groove. The switch seat is provided with a positive electrode post and a negative contact. The positive electrode post is inserted into the positive electrode groove. During the process of the switch seat translating in the positive electrode groove, the negative contact abuts against the negative electrode groove. The battery pack and the controller form a loop through the switch seat, and the switch seat presses the battery assembly in the fixed box. The guiding groove is arranged on the outer side wall of the fixed box, and the switch seat is fitted in the guiding groove. A pipe-aligning groove is further provided in the guiding groove, and a pipe-aligning post is further provided on the switch seat. The pipe-aligning post is matched with the pipe-aligning groove.

[0008] For the water-proof battery box of the remote control vehicle adopting this structure, the fixed box is fixed at the bottom of the remote control vehicle. The inner cavity of the fixed box is used for accommodating the installation of the battery assembly. In order to prevent the installed battery assembly from getting water during the process of driving the remote control vehicle, it is necessary to initially seal the battery assembly. Therefore, the inner box, the battery pack, the upper cover, and the sealing ring included in the battery assembly are used. The battery pack is placed into the inner box. The sealing ring is placed in the sealing half-groove at the upper end opening of the inner box, and then the sealing half-groove of the upper cover is closed on the upper end of the sealing ring. The sealing groove formed by the two groups of sealing half-grooves presses the sealing ring therein. Therefore, the combined battery assembly plays a role of initial sealing through the action of the sealing ring.

[0009] To facilitate the disassembly and assembly of the battery module, a clamping part and a pressing part are provided on the battery module. The clamping part is formed by the upper clamping seat on the upper cover and the lower clamping seat on the inner box abutting against each other. After the upper clamping seat and the lower clamping seat abut against each other, they are inserted into the clamping hole on the fixed box. Taking the clamping hole as the rotation center, the pressing part at the other end of the battery module is pressed into the pressing groove. The pressing part is formed by the upper pressing plate on the upper cover and the lower pressing plate on the inner box abutting against each other. Therefore, when the switch seat is horizontally placed on the upper end face of the upper pressing plate, the battery module can be pressed and fixed in the fixed box, ensuring that there is a continuous downward pressure at both the left and right ends of the upper cover. While maintaining the seal of the battery module, the quick disassembly of the battery module can be achieved by moving the switch seat.

[0010] Since the upper cover is continuously pressed on the inner box, it will be difficult to disassemble due to the continuous air compression inside for a long time. Therefore, an upward-extending upper edge plate is provided at the end of the upper pressing plate, and a downward-extending lower edge plate is provided at the end of the lower pressing plate. The upper edge plate and the lower edge plate abut against each other, and a communication cavity connecting the sealing groove is provided between the upper pressing plate and the lower pressing plate. The upper end faces of the upper edge plate and the lower edge plate are flush with the upper end face of the upper cover. A fastening part facing the upper cover is provided at the end of the upper edge plate. Therefore, when the upper cover needs to be quickly opened, only by pressing the fastening part in the direction of the upper cover, a gap will appear between the upper edge plate and the lower edge plate, and external air enters through the gap until it reaches the communication cavity. The communication cavity supplies air to the sealing groove connected to it, so that air enters between the sealing half-groove and the sealing ring. Then, by pulling up the fastening part along the trend, the upper cover can be quickly opened.

[0011] If the lateral movement of the switch base is associated with the activation of the controller at this time, then the battery pack can form a circuit with the controller through the lateral movement of the switch base. Thus, while the lateral movement of the switch base restricts the pressing part, the controller can also be activated, enabling the remote control vehicle to be in a state where it can be controlled and driven by the battery pack. Therefore, the positive electrode of the battery pack, the outer left contact on the inner box, the inner left contact of the fixed box, and the positive electrode slot are connected in sequence, and the negative electrode of the battery pack, the outer right contact on the inner box, the inner right contact of the fixed box, and the negative electrode slot are connected in sequence. The positive electrode post on the switch base is inserted into the positive electrode slot, and the negative contact abuts against the negative electrode slot during the lateral movement of the switch base. The positive and negative contacts on the switch base are respectively connected to the controller. Therefore, during the process of the negative contact abutting against the negative electrode slot, the positive and negative electrodes of the battery pack are respectively connected to the positive and negative electrodes of the controller to supply power to the controller. Thus, while restricting the upward movement of the pressing part through the lateral movement of the switch base, power is also supplied to the controller. Basic waterproof protection is provided for each of the sequentially connected contact points, enabling quick connection while also achieving waterproofing for each contact point. To make the lateral movement of the switch base smoother, a guiding groove is added to restrict the lateral movement of the switch base. At the same time, a pipe alignment groove is added in the guiding groove, and the stable movement of the switch base is achieved through the cooperation of the pipe alignment post on the switch base and the pipe alignment groove.

[0012] Further, a battery seat is provided inside the inner box, and the battery pack is fitted into the battery seat; a battery pressing plate is provided inside the upper cover, and the battery pressing plate can be abutted and connected to the battery pack.

[0013] Compared with the prior art, the advantages of the present utility model are as follows: Through the sequential connection of the inner box, the sealing ring, and the upper cover, a preliminary sealing effect is achieved. The clamping part is inserted into the clamping hole on the fixed box, and with the clamping hole as the rotation center, the pressing part at the other end of the battery assembly is pressed into the pressing groove. After the switch base is horizontally placed on the upper end surface of the pressing part, the battery assembly can be pressed and combined inside the fixed box, ensuring that there is continuous downward pressure at both the left and right ends of the upper cover. While maintaining the seal of the battery assembly, quick disassembly of the battery assembly can also be achieved by moving the switch base. The provided buckling part can introduce air into the communication cavity when pressed in the direction of the upper cover, allowing air to enter between the sealing half groove and the sealing ring. Then, by pulling the buckling part upwards, the upper cover can be quickly opened. While the lateral movement of the switch base restricts the upward movement of the pressing part, it also supplies power to the controller. Therefore, when the lateral movement of the switch base disconnects the negative contact, it will automatically cut off the power, avoiding the fall of the battery assembly and reminding the operator to check the remote control vehicle in a timely manner. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 Isometric view of the present invention;

[0016] Figure 2 Isometric view of the present invention with the remote control car hidden at the back;

[0017] Figure 3 Exploded schematic view from the left end top view of the present invention;

[0018] Figure 4 Exploded schematic view from the right end top view of the present invention;

[0019] Figure 5 Exploded schematic view from the right end bottom view of the present invention;

[0020] Figure 6 Exploded schematic view from the back end top view of the present invention;

[0021] Figure 7 Of the present invention Figure 6 Partial enlarged view of part A;

[0022] Figure 8 Isometric view of the switch base of the present invention.

[0023] Wherein: 1. Fixed box; 11. Inner left contact; 12. Inner right contact; 13. Clamping hole; 14. Pressing groove; 2. Battery assembly; 21. Inner box; 211. Outer left contact; 212. Outer right contact; 213. Sealed half groove; 214. Battery seat; 22. Battery pack; 23. Upper cover; 231. Battery pressing plate; 24. Sealing ring; 25. Clamping part; 251. Upper clamping seat; 252. Lower clamping seat; 26. Pressing part; 261. Upper pressing plate; 262. Lower pressing plate; 263. Upper edge plate; 264. Lower edge plate; 265. Communication cavity; 266. Buckling part; 3. Switch assembly; 31. Positive electrode groove; 32. Negative electrode groove; 33. Switch base; 331. Positive electrode column; 332. Negative contact; 333. Tube positive column; 34. Controller; 35. Guide groove; 351. Tube positive groove; 4. Remote control car. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the present utility model clearer, the technical solutions of the present utility model will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope protected by the present utility model.

[0025] The following will describe the specific embodiments of the present utility model in conjunction with the accompanying drawings:

[0026] As Figure 1-8 shown, a water-proof battery box for a remote control car includes a fixed box 1, a battery assembly 2, and a switch assembly 3. The fixed box 1 is fixedly arranged at the bottom of the remote control car 4. An inner left contact 11 and an inner right contact 12 are provided inside the fixed box 1. A clamping hole 13 communicating with the inner cavity is provided on one side wall of the fixed box 1, and a pressing groove 14 penetrating through the upper opening of the fixed box 1 is provided on the other side wall of the fixed box 1.

[0027] The battery assembly 2 includes an inner box 21, a battery pack 22, an upper cover 23, a sealing ring 24, a clamping portion 25, and a pressing portion 26. An outer left contact 211 and an outer right contact 212 are provided on the inner box 21. The battery pack 22 is arranged inside the inner cavity of the inner box 21. The positive electrode of the battery pack 22 is connected to the inner left contact 11 through the outer left contact 211, and the negative electrode of the battery pack 22 is connected to the inner right contact 12 through the outer right contact 212. The upper opening of the inner box 21 is connected to the upper cover 23 through the sealing ring 24. Sealing half-grooves 213 are provided on both the upper opening of the inner box 21 and the lower end surface of the upper cover 23. When the inner box 21 abuts against the upper cover 23, the two sets of sealing half-grooves 213 enclose a sealing groove, and the sealing ring 24 is arranged in the sealing groove. The battery assembly 2 is clamped in the fixed box 1. The clamping portion 25 includes an upper clamping seat 251 provided on the upper cover 23 and a lower clamping seat 252 provided on the inner box 21. After the upper clamping seat 251 and the lower clamping seat 252 abut against each other, they are inserted into the clamping hole 13 together. The pressing portion 26 includes an upper pressing plate 261 provided on the upper cover 23 and a lower pressing plate 262 provided on the inner box 21. The upper pressing plate 261 and the lower pressing plate 262 abut against each other. The bottom of the lower pressing plate 262 abuts against the pressing groove 14, and the bottom of the switch seat 33 abuts against the upper end surface of the upper pressing plate 261. An upper edge plate 263 extending upward is provided at the end of the upper pressing plate 261, and a lower edge plate 264 extending upward is provided at the end of the lower pressing plate 262. The upper edge plate 263 and the lower edge plate 264 abut against each other. A communication cavity 265 communicating with the sealing groove is provided between the upper pressing plate 261 and the lower pressing plate 262. The upper end surfaces of the upper edge plate 263 and the lower edge plate 264 are flush with the upper end surface of the upper cover 23, and a fastening portion 266 facing the upper cover 23 is provided at the end of the upper edge plate 263.

[0028] The switch assembly 3 includes a positive electrode slot 31, a negative electrode slot 32, a switch base 33, a controller 34, and a guide slot 35. The positive electrode slot 31 and the negative electrode slot 32 are both arranged on the outer side wall of the fixed box 1 and are respectively connected to the inner left contact 11 and the inner right contact 12. The switch base 33 is respectively in abutting connection with the positive electrode slot 31 and the negative electrode slot 32. The positive electrode slot 31 and the negative electrode slot 32 are respectively arranged on the left and right sides of the pressing slot 14. The switch base 33 is provided with a positive electrode post 331 and a negative contact 332. The positive electrode post 331 is inserted into the positive electrode slot 31. During the process of the switch base 33 translating in the positive electrode slot 31, the negative contact 332 abuts in the negative electrode slot 32. The battery pack 22 and the controller 34 form a loop through the switch base 33. The switch base 33 presses the battery assembly 2 in the fixed box 1. The guide slot 35 is arranged on the outer side wall of the fixed box 1. The switch base 33 is fitted in the guide slot 35. The guide slot 35 is further provided with a tube positive slot 351. The switch base 33 is further provided with a tube positive post 333. The tube positive post 333 is matched with the tube positive slot 351.

[0029] Further, a battery seat 214 is arranged in the inner box 21. The battery pack 22 is fitted in the battery seat 214. A battery pressing plate 231 is arranged in the upper cover 23. The battery pressing plate 231 can be in abutting connection with the battery pack 22.

[0030] The working mode of the present utility model is described as follows:

[0031] For the water-proof battery box of the remote control car adopting this structure, the fixed box 1 is fixed at the bottom of the remote control car 4. The inner cavity of the fixed box 1 is used for accommodating the installation of the battery assembly 2. In order to prevent the installed battery assembly 2 from getting water during the process of driving the remote control car 4, it is necessary to conduct preliminary sealing on the battery assembly 2. Therefore, the inner box 21, the battery pack 22, the upper cover 23 and the sealing ring 24 included in the battery assembly 2. The battery pack 22 is placed into the inner box 21. The battery seat 214 arranged in the inner box 21 can provide a supporting effect for the battery pack 22. The sealing ring 24 is placed in the sealing half-slot 213 at the upper end opening of the inner box 21. The sealing half-slot 213 of the upper cover 23 is covered on the upper end of the sealing ring 24. The sealing ring 24 is pressed in the sealing slot formed by enclosing the two groups of sealing half-slots 213. The battery pressing plate 231 in the upper cover 23 also provides a continuous downward pressure on the battery pack 22 to keep the battery pack 22 from loosening and affecting the power supply effect. Therefore, the combined battery assembly 2 plays a preliminary sealing role through the action of the sealing ring 24.

[0032] To facilitate the disassembly and assembly of the battery assembly 2, a clamping portion 25 and a pressing portion 26 are provided on the battery assembly 2. The clamping portion 25 is formed by the upper clamping seat 251 on the upper cover 23 and the lower clamping seat 252 on the inner box 21 abutting against each other. After the upper clamping seat 251 and the lower clamping seat 252 abut against each other, they are inserted into the clamping hole 13 on the fixed box 1. Taking the clamping hole 13 as the rotation center, the pressing portion 26 at the other end of the battery assembly 2 is pressed into the pressing groove 14. The pressing portion 26 is formed by the upper pressing plate 261 on the upper cover 23 and the lower pressing plate 262 on the inner box 21 abutting against each other. Therefore, when the switch seat 33 is horizontally placed on the upper end surface of the upper pressing plate 261, the battery assembly 2 can be pressed and fixed in the fixed box 1, ensuring that there is a continuous downward pressure at both the left and right ends of the upper cover 23. While maintaining the seal of the battery assembly 2, the battery assembly 2 can be quickly disassembled by moving the switch seat 33.

[0033] Since the upper cover 23 is continuously pressed on the inner box 21, it will be difficult to disassemble due to the continuous air compression inside for a long time. Therefore, an upwardly extending upper edge plate 263 is provided at the end of the upper pressing plate 261, and a downwardly extending lower edge plate 264 is provided at the end of the lower pressing plate 262. The upper edge plate 263 and the lower edge plate 264 abut against each other, and a communication cavity 265 communicating with the sealing groove is provided between the upper pressing plate 261 and the lower pressing plate 262. The upper end surfaces of the upper edge plate 263 and the lower edge plate 264 are flush with the upper end surface of the upper cover 23. A fastening portion 266 facing the upper cover 23 is provided at the end of the upper edge plate 263. Therefore, when the upper cover 23 needs to be quickly opened, only by pressing the fastening portion 266 in the direction of the upper cover 23, a gap will appear between the upper edge plate 263 and the lower edge plate 264, and external air enters through the gap until it reaches the communication cavity 265. The communication cavity 265 allows air to enter the sealing groove connected to it, enabling air to enter between the sealing half groove 213 and the sealing ring 24. Then, by pulling up the fastening portion 266, the upper cover 23 can be quickly opened.

[0034] If the lateral movement of the switch base 33 is associated with the activation of the controller 34 at this time, then the battery pack 22 can form a circuit with the controller 34 through the lateral movement of the switch base 33. Thus, while the lateral movement of the switch base 33 restricts the pressing part 26, the controller 34 can also be activated, enabling the remote control vehicle 4 to be in a state where it can be controlled and driven by the battery pack 22. Therefore, the positive electrode of the battery pack 22, the outer left contact 211 on the inner box 21, the inner left contact 11 of the fixed box 1, and the positive electrode slot 31 are connected in sequence, and the negative electrode of the battery pack 22, the outer right contact 212 on the inner box 21, the inner right contact 12 of the fixed box 1, and the negative electrode slot 32 are connected in sequence. The positive electrode post 331 on the switch base 33 is inserted into the positive electrode slot 31, and the negative contact 332 abuts against the negative electrode slot 32 during the lateral movement of the switch base 33. The positive and negative contacts on the switch base 33 are respectively connected to the controller 34. Therefore, during the process of the negative contact 332 abutting against the negative electrode slot 32, the positive and negative electrodes of the battery pack 22 are respectively connected to the positive and negative electrodes of the controller 34 to supply power to the controller 34. Thus, while restricting the upward movement of the pressing part 26 through the lateral movement of the switch base 33, power is also supplied to the controller 34. The basic waterproof protection is provided for each connected contact point, enabling quick connection and waterproofing of each contact point. To make the lateral movement of the switch base 33 more stable, a guiding groove 35 is added. The translation of the switch base 33 is restricted by the guiding groove 35, and a tube alignment groove 351 is also added in the guiding groove 35. Through the cooperation of the tube alignment post 333 on the switch base 33 and the tube alignment groove 351, the stable movement of the switch base 33 is achieved.

[0035] The beneficial effects of the present utility model are as follows: Through the sequential connection of the inner box 21, the sealing ring 24, and the upper cover 23, a preliminary sealing effect is achieved. The clamping part 25 is inserted into the clamping hole 13 on the fixed box 1. With the clamping hole 13 as the rotation center, the pressing part 26 at the other end of the battery assembly 2 is pressed into the pressing groove 14. After the switch base 33 is horizontally placed on the upper end surface of the pressing part 26, the battery assembly 2 can be pressed and combined in the fixed box 1, ensuring that there is continuous downward pressure at both left and right ends of the upper cover 23. While maintaining the sealing of the battery assembly 2, the quick disassembly of the battery assembly 2 can be achieved by moving the switch base 33. The provided buckling part 266 can introduce air into the communication cavity 265 when pressed in the direction of the upper cover 23, enabling air to enter between the sealing half groove 213 and the sealing ring 24. Then, by pulling the buckling part 266 upward, the upper cover 23 can be quickly opened. While the lateral movement of the switch base 33 restricts the upward movement of the pressing part 26, it also supplies power to the controller 34. Therefore, when the switch base 33 moves laterally and disconnects the negative contact 332, it will power off automatically, avoiding the dropping of the battery assembly 2 and reminding the operator to check the remote control vehicle 4 in a timely manner.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water-proof battery box for a remote-controlled car, characterized in that: The invention comprises a fixing box, a battery assembly and a switch assembly, wherein the fixing box is fixedly arranged at the bottom of the remote control car, an inner left contact and an inner right contact are arranged in the fixing box, the battery assembly comprises an inner box, a battery pack, an upper cover and a sealing ring, an outer left contact and an outer right contact are arranged on the inner box, the battery pack is arranged in the inner cavity of the inner box, the positive pole of the battery pack is connected with the inner left contact through the outer left contact, the negative pole of the battery pack is connected with the inner right contact through the outer right contact, the upper end opening of the inner box is connected with the upper cover through a sealing ring, the battery assembly is clamped in the fixing box, the switch assembly comprises a positive electrode slot, a negative electrode slot, a switch seat and a controller, the positive electrode slot and the negative electrode slot are both arranged on the outer side wall of the fixing box and are respectively connected with the inner left contact and the inner right contact, the switch seat is respectively connected with the positive electrode slot and the negative electrode slot in abutment, the battery pack and the controller form a loop through the switch seat, and the switch seat presses the battery assembly into the fixing box.

2. The water-proof battery box for a remote control car according to claim 1, characterized in that: A clamping hole connected to the inner cavity is provided on the side wall at one end of the fixing box, and a clamping groove penetrating through the upper end opening of the fixing box is provided on the side wall at the other end of the fixing box; the battery assembly also includes a clamping portion and a clamping portion, the clamping portion includes an upper clamping seat arranged on the upper cover and a lower clamping seat arranged on the inner box, the upper clamping seat and the lower clamping seat are abutted and inserted into the clamping hole together; the clamping portion includes an upper pressing plate arranged on the upper cover and a lower pressing plate arranged on the inner box, the upper pressing plate and the lower pressing plate are abutted, the bottom of the lower pressing plate abuts in the clamping groove, and the bottom of the switch seat abuts on the upper end surface of the upper pressing plate.

3. The water-proof battery box for a remote-controlled vehicle according to claim 2, characterized in that: The upper opening of the inner box and the lower end surface of the upper cover are both provided with sealing half grooves. When the inner box is in contact with the upper cover, two groups of the sealing half grooves are combined to form a sealing groove, and the sealing ring is arranged in the sealing groove.

4. The water-proof battery box for a remote-controlled vehicle according to claim 3, characterized in that: An upper edge plate extending upward is provided at the end of the upper pressing plate, and a lower edge plate extending upward is provided at the end of the lower pressing plate. The upper edge plate and the lower edge plate are abutted against each other, and a connecting cavity connecting the sealing groove is provided between the upper pressing plate and the lower pressing plate.

5. The water-proof battery box for a remote-controlled vehicle according to claim 4, characterized in that: The upper end surfaces of the upper edge plate and the lower edge plate are flush with the upper end surface of the upper cover, and the end of the upper edge plate is provided with a buckling portion facing the upper cover.

6. The water-proof battery box for a remote-controlled vehicle according to claim 2, characterized in that: The positive electrode slot and the negative electrode slot are respectively arranged on the left and right sides of the clamping slot. The switch seat is provided with a positive electrode column and a negative contact. The positive electrode column is inserted into the positive electrode slot. When the switch seat translates in the positive electrode slot, the negative contact abuts against the negative electrode slot.

7. The water-proof battery box for a remote-controlled vehicle according to claim 6, characterized in that: The switch assembly further comprises a guide groove, which is arranged on the outer side wall of the fixing box, and the switch seat is fitted in the guide groove.

8. The water-proof battery box for a remote-controlled vehicle according to claim 7, characterized in that: A tube-positive groove is also provided in the guide groove, and a tube-positive column is also provided on the switch seat, and the tube-positive column matches with the tube-positive groove.

9. The water-proof battery box for a remote-controlled vehicle according to claim 1, characterized in that: A battery seat is arranged in the inner box, and the battery pack is matched in the battery seat.

10. The water-proof battery box for a remote-controlled vehicle according to claim 9, characterized in that: A battery pressing plate is arranged inside the upper cover, and the battery pressing plate can be abutted and connected to the battery pack.

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