Toy car protection structure

Abstract

The utility model belongs to the field of circuit structures, and particularly relates to a toy car protection structure which comprises a circuit board. The processing module is mounted on the circuit board; the driving module is mounted on the circuit board; and the protection module is mounted on the circuit board. When the toy car is pushed to move, if the driving device is abnormally driven to generate large current, the PTC fuse is heated due to overlarge passing current, the resistance of the PTC fuse is sharply increased along with temperature rise, and after the resistance is sharply increased, according to the ohm law I = UR( wherein I current, U is voltage and R is resistance), the resistance R is increased under the condition that the power supply voltage is not changed, so that the resistance of the PTC fuse is increased. Therefore, the current in the circuit is obviously reduced, so that the current in the circuit is limited in a safe range, excessive current is prevented from passing through the circuit board, and the circuit board is prevented from being damaged due to overcurrent.

Description

Technical Field

[0001] This utility model belongs to the field of circuit structure, specifically relating to a protective structure for a toy car. Background Technology

[0002] In the toy manufacturing industry, especially in toy cars with electric drive devices, ensuring the stability and safety of the circuit system has always been a key technical challenge. As toy car designs increasingly pursue high performance and diversified functions, the power of their drive devices is becoming more and more powerful, and the corresponding operating current is also increasing.

[0003] Traditional toy car circuit protection methods are relatively simple, typically relying on basic current-limiting resistors or ordinary fuses to address current overload issues. However, in real-world usage scenarios, when a user pushes a toy car, the drive mechanism is easily triggered by sudden external mechanical impacts, changes in friction, or improper operation, instantly entering an abnormal operating state and generating a large current far exceeding its normal rated value. At this time, due to its inherent characteristics, the current-limiting resistor often fails to quickly and effectively limit the current to a safe range, resulting in a large amount of heat accumulating on the circuit board. While ordinary fuses can melt and cut off the circuit when the current is too high, this melting is a one-time destruction mechanism. Once it melts, the toy car's circuit is completely interrupted, requiring fuse replacement to restore use. Moreover, frequent fuse replacements significantly reduce the toy's usability and increase the user's maintenance and time costs. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a toy car protection structure to solve the problems that although some toy cars can be played with by children, the direction control lacks effective restraint. If children operate them at will, the toy car may lose control of its direction. In addition, the steering wheels of some toy cars are mostly fixed, so children cannot rotate the steering wheel, and the overall feedback is poor, resulting in a poor operating experience.

[0005] One embodiment of this utility model provides a protective structure for a toy car, comprising:

[0006] Circuit board;

[0007] A processing module, which is mounted on the circuit board;

[0008] A drive module is mounted on the circuit board and is connected to the processing module.

[0009] A protection module is mounted on the circuit board and is connected to the drive module.

[0010] The protection module is a PTC fuse, which is used to cut off power when the toy car is manually pushed.

[0011] This utility model discloses a protective structure for a toy car. A processing module controls a drive module, which propels the toy car. The protection module limits the current on the circuit board when the car is manually pushed. Manually pushing the car causes the drive module to move, generating a momentary large current that could easily burn out the circuit. A PTC fuse effectively solves this problem. Under normal circumstances, the current in the circuit is at a normal level. The temperature of the PTC fuse is close to the ambient temperature, and its resistance is low, operating like a regular wire, allowing current to flow smoothly and enabling the circuit to function normally. The toy car's drive mechanism and other components can operate normally. However, when the toy car is pushed, if the drive mechanism is abnormally activated, generating a large current, the PTC fuse will heat up due to the excessive current. As the temperature rises, the resistance of the PTC fuse increases sharply. According to Ohm's Law I=U / R (where I is the current, U is the voltage, and R is the resistance), with a constant power supply voltage, the increased resistance R significantly reduces the current in the circuit, thus limiting the current within a safe range and preventing excessive current from passing through the circuit board, thus preventing damage due to overcurrent.

[0012] In one embodiment,

[0013] The processing module includes a main microprocessor unit;

[0014] The main microprocessor unit is mounted on the circuit board.

[0015] In one embodiment, a transceiver unit is also included;

[0016] The transceiver unit is mounted on the circuit board and is connected to the processing module.

[0017] In one embodiment, a power module is also included;

[0018] The power module is mounted on the circuit board and is connected to the processing module.

[0019] In one embodiment, a control signal input unit is also included;

[0020] The control signal input unit is mounted on the circuit board and is connected to the processing module.

[0021] The toy car protective structure provided by the above technical solution has the following beneficial effects:

[0022] The protection module limits the current on the circuit board when the toy car is manually pushed. This is because manually pushing the car causes the drive module to move, generating a sudden surge of current that could easily burn out the circuit. A PTC fuse effectively solves this problem. Under normal circumstances, the current in the circuit is at a normal level. The temperature of the PTC fuse is close to the ambient temperature, and its resistance is low, operating like a regular wire, allowing current to flow smoothly and enabling the circuit to function normally. The toy car's drive mechanism and other components can operate normally. However, when the toy car is pushed, if the drive mechanism is abnormally activated, generating a large current, the PTC fuse will heat up due to the excessive current. As the temperature rises, the resistance of the PTC fuse increases sharply. According to Ohm's Law I=U / R (where I is the current, U is the voltage, and R is the resistance), with a constant power supply voltage, the increased resistance R significantly reduces the current in the circuit, thus limiting the current within a safe range and preventing excessive current from flowing through the circuit board, thus preventing damage due to overcurrent. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] The markings in the diagram are explained as follows:

[0026] 100. Circuit board;

[0027] 200. Processing module; 210. Main microprocessor unit;

[0028] 300. Driver module;

[0029] 400. Protection module; 410. PTC fuse;

[0030] 500. Transceiver Unit;

[0031] 600. Power supply module;

[0032] 700. Control signal input unit. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] Combination Figure 1 As shown, a toy car protective structure includes:

[0038] Circuit board 100;

[0039] Processing module 200, which is mounted on circuit board 100;

[0040] A drive module 300 is mounted on the circuit board 100 and is connected to the processing module 200.

[0041] A protection module 400 is mounted on the circuit board 100 and is connected to the drive module 300.

[0042] The protection module 400 is a PTC fuse 410, which is used to cut off power when the toy car is manually pushed.

[0043] This utility model discloses a protective structure for a toy car. A processing module 200 controls a drive module 300, which drives the toy car. The drive module 300 propels the toy car, and the protection module 400 limits the current on the circuit board 100 when the car is manually pushed. This is because manually pushing the car causes the drive module 300 to move, generating a large instantaneous current that could easily burn out the circuit. The PTC fuse 410 effectively solves this problem. Under normal conditions, the current in the circuit is at a normal level. The temperature of the PTC fuse 410 is close to the ambient temperature, and its resistance is low, operating like a regular wire, allowing current to flow smoothly. The circuit works normally, and the drive mechanism and other components of the toy car operate normally. When the toy car is pushed, if the drive mechanism is abnormally driven and generates a large current, the PTC fuse 410 will heat up due to the excessive current. As the temperature rises, the resistance of the PTC fuse 410 will increase sharply. After the resistance increases sharply, according to Ohm's law I=U / R (where I is the current, U is the voltage, and R is the resistance), with the power supply voltage remaining constant, the increase in resistance R will significantly reduce the current in the circuit, thereby limiting the current in the circuit to a safe range and preventing excessive current from passing through the circuit board 100, thus preventing the circuit board 100 from being damaged due to overcurrent.

[0044] The processing module 200 includes a main microprocessor unit 210;

[0045] The main microprocessor unit 210 is mounted on the circuit board 100;

[0046] It also includes a transceiver unit 500;

[0047] The transceiver unit 500 is mounted on the circuit board 100 and is connected to the processing module 200.

[0048] It also includes the power module 600;

[0049] The power module 600 is mounted on the circuit board 100 and is connected to the processing module 200;

[0050] It also includes a control signal input unit 700;

[0051] The control signal input unit 700 is mounted on the circuit board 100 and is connected to the processing module 200.

[0052] In this embodiment, the processing unit is used to process the external signals received by the transceiver unit 500, thereby performing corresponding actions according to the signal information; the power supply module 600 is used to provide power to the entire circuit structure; and the control signal input unit 700 is used to receive and transmit various control signals.

[0053] The working principle of this utility model:

[0054] The processing module 200 controls the drive module 300, which drives the toy car. The protection module 400 limits the current on the circuit board 100 when the car is manually pushed, because manually pushing the car causes the drive module 300 to move, generating a large instantaneous current that could easily burn out the circuit. The PTC fuse 410 effectively solves this problem. Under normal circumstances, the current in the circuit is at a normal level. The temperature of the PTC fuse 410 is close to the ambient temperature, and its resistance is low, operating like an ordinary wire, allowing current to flow smoothly and enabling the circuit to function normally. The toy car's drive mechanism and other components can operate normally. However, when the toy car is pushed, if the drive mechanism is abnormally activated and generates a large current, the PTC fuse 410 will heat up due to the excessive current. As the temperature rises, the resistance of the PTC fuse 410 will increase sharply. According to Ohm's law I=U / R (where I is the current, U is the voltage, and R is the resistance), with the power supply voltage remaining constant, the increased resistance R will significantly reduce the current in the circuit, thereby limiting the current in the circuit to a safe range and preventing excessive current from passing through the circuit board 100, thus preventing the circuit board 100 from being damaged due to overcurrent.

[0055] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made using the paper parts and drawings of the present utility model under the inventive concept of the present utility model, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A protective structure for a toy car, characterized in that, include: Circuit board (100); A processing module (200) is mounted on the circuit board (100); A drive module (300) is mounted on the circuit board (100) and is connected to the processing module (200); A protection module (400) is mounted on the circuit board (100) and is connected to the drive module (300); The protection module (400) is a PTC fuse (410), which is used to cut off power when the toy car is manually pushed.

2. The toy car protective structure as described in claim 1, characterized in that, The processing module (200) includes a main microprocessor unit (210); The main microprocessor unit (210) is mounted on the circuit board (100).

3. The toy car protective structure as described in claim 1, characterized in that, It also includes a transceiver unit (500); The transceiver unit (500) is mounted on the circuit board (100) and is connected to the processing module (200).

4. The toy car protective structure as described in claim 1, characterized in that, It also includes a power module (600). The power module (600) is mounted on the circuit board (100) and is connected to the processing module (200).

5. The toy car protective structure as described in claim 1, characterized in that, It also includes a control signal input unit (700); The control signal input unit (700) is mounted on the circuit board (100) and is connected to the processing module (200).

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