A replaceable violent fan based on hardware platform compatibility

Abstract

This invention discloses a replaceable high-power fan head based on hardware platform compatibility, relating to the field of high-power fan technology. It includes a power supply unit and a fan head that can be detached and assembled with the power supply unit; it also includes a main control board with an identification unit. The fan head displays type information, and the identification unit can identify the type information of the fan head and control the power supply unit to output corresponding power parameters based on the identification result. Through the detachable and assembleable design of the fan head and power supply unit, users can replace the fan head with one of different performance specifications according to actual usage scenarios. Relying on the automatic identification and reading of the fan head type information by the identification unit, the power supply unit can adaptively match the output parameters. When the identification result indicates an incompatible model or identification failure, the main control board controls the power supply unit to refuse to output power. This achieves a plug-and-play convenience experience while fundamentally avoiding burn-in failures caused by voltage mismatch, improving product flexibility and electrical safety.

Description

Technical Field

[0001] This invention relates to the field of high-performance fan technology, and more particularly to a replaceable high-performance fan head based on hardware platform compatibility. Background Technology

[0002] Currently, most known high-performance fans adopt an integrated structure where the fan head and the power supply body with the built-in battery are fixedly assembled as an inseparable whole. The rated operating performance parameters of the product are fixed at the factory and cannot be adjusted or replaced by the user.

[0003] In actual use, this type of integrated structure has obvious defects: On the one hand, different usage scenarios have different requirements for fan air volume, speed and battery life. For example, industrial dust removal requires high speed and large air volume, while daily heat dissipation prefers low power consumption and long battery life. Users often need to purchase multiple units to adapt to different scenarios, which results in high purchase costs. At the same time, the product cannot be upgraded in performance by replacing the fan head or battery separately, resulting in poor product reusability and short life cycle.

[0004] On the other hand, although there are portable modular small household appliances in the existing technology, such as the one with announcement number CN223912285U, which designs the head and body as a detachable structure, this type of solution is only designed for ordinary low-power small household appliances and only realizes the basic disassembly and assembly connection function. It does not support the free replacement and adaptation of head with different power specifications.

[0005] The operating conditions of a high-powered fan are fundamentally different from those of ordinary small household appliances: to ensure high speed and strong air output, its operating current is much greater than that of conventional blowers, requiring extremely high accuracy in matching power supply parameters; however, existing detachable solutions generally lack head type recognition and power supply adaptive matching mechanisms. The rated operating voltage and power parameters of different fan heads vary greatly. When users blindly replace different fan heads, the power supply unit cannot automatically recognize the head parameters and adjust the output accordingly.

[0006] Under the high current and high power operating conditions of a high-power fan, if the power supply voltage is mismatched with the rated parameters of the fan head, it will cause irreversible damage such as overcurrent burnout of the motor windings and breakdown of the drive circuit in a short period of time. Not only is the repair cost high, but there are also serious safety hazards such as overheating and fire. It is impossible to balance the safety of use under high power operation with the convenience of plug-and-play.

[0007] Therefore, it is necessary to propose a new technical solution to address the above problems. Summary of the Invention

[0008] To overcome the shortcomings mentioned above, the present invention aims to provide a technical solution that can solve the above problems.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a replaceable high-power fan for the fan head based on hardware platform compatibility, comprising a power supply unit and a fan head that can be detached and assembled with the power supply unit; It also includes a main control board, which is equipped with an identification unit. The fan head has type information. The identification unit can identify the type information of the fan head and control the power supply unit to output the corresponding power supply parameters according to the identification result.

[0010] As a further aspect of the present invention: a passive coding component is provided on the fan head, and the identification unit obtains the type information of the fan head based on the detection of the passive coding component.

[0011] As a further aspect of the present invention: when the identification unit cannot identify the type information of the fan head or the identification result is incompatible, the power supply unit remains in a power-off state.

[0012] As a further aspect of the present invention: the identification unit includes a detection terminal; The identification unit and the passive coding component are detected by electrical conduction. The passive coding component includes conductive terminals, and the detection terminals and the conductive terminals are electrically connected to form a detection circuit.

[0013] As a further aspect of the present invention: the power supply unit is provided with a power supply terminal, the fan head is provided with a power connection terminal, and the power supply terminal and the power connection terminal are electrically connected to form a working electrical circuit acting on the fan head; The detection circuit has an independent power supply path relative to the working electrical circuit.

[0014] As a further aspect of the present invention, it also includes a detection switch module, which is connected in series in the detection circuit of the identification unit and the passive encoder; When the equipment is powered on, the detection switch module controls the detection circuit to operate; when the equipment is powered off, the detection switch module controls the detection circuit to disconnect and stop detection.

[0015] As a further aspect of the present invention, the operating current of the detection circuit is in the microampere range.

[0016] As a further aspect of the present invention: the detection terminal and the power supply terminal are clip-on terminal sockets, and the conductive terminal and the power connection terminal are conductive inserts, so that the detection terminal and the conductive terminal, as well as the power supply terminal and the power connection terminal, form surface contact and conduction.

[0017] As a further aspect of the present invention: the power supply unit is provided with a voltage selection output module, and the voltage selection output module is signal-connected to the main control board; After the identification unit obtains the fan head type information based on the detection of the passive coding component, the voltage selection output module outputs different levels of power supply voltage that match the fan head by switching the number of cells connected in series in the working circuit.

[0018] As a further aspect of the present invention: a snap-locking component is provided between the power supply unit and the fan head, the snap-locking component being used to achieve mechanical locking after the fan head is assembled.

[0019] Compared with existing technologies, the beneficial effects of this technical solution are as follows: With the detachable and removable design of the fan head and power supply unit, users can replace the fan head with different performance specifications according to the actual usage scenario; relying on the automatic identification and reading of the fan head type information by the identification unit, the power supply unit can adaptively match the output parameters. When the identification result is an incompatible model or identification fails, the main control board controls the power supply unit to refuse to output power. While achieving a convenient plug-and-play experience, it avoids the burn-out failure caused by voltage mismatch from the root, and improves the product's flexibility of use and power safety. Based on this hardware-compatible platform architecture, users can purchase fan heads with different performance levels (such as low-torque long-lasting models, high-speed large-airflow models, etc.) and power supply units of different specifications (such as lightweight and portable models, large-capacity high-voltage models, etc.) to freely combine and match according to different usage needs such as industrial dust removal and daily heat dissipation. This breaks the limitations of traditional high-performance fans that are "one machine and one power supply with fixed factory performance" and meets the diverse usage scenarios of users. Specifically, by setting separate detection terminals and conductive terminals, the detection circuit is physically isolated from the working electrical circuit. The detection circuit only carries a microampere-level identification detection current, which is dedicated to collecting the type information of fan head 2. This avoids large current fluctuations and electromagnetic interference generated during the start-up, shutdown, and speed adjustment of the fan motor from entering the detection circuit, ensuring the continuous accuracy of the identification results. It also allows the machine head (power supply unit) side to achieve type identification without power supply, relying solely on resistors. This is low-cost, highly reliable, and suitable for mass production of multi-specification machine heads. At the same time, the Q46 controls the on / off of the detection circuit, balancing the detection function with low power consumption requirements. The continuous sampling mechanism supports hot-swapping operations, and power is cut off immediately upon removal, preventing incorrect insertion that could lead to direct burn-out damage.

[0020] Furthermore, the passive coding electrical continuity detection scheme of the detection circuit ensures strong anti-interference ability and is not affected by factors such as dust, temperature and humidity fluctuations in the usage environment. It can stably adapt to various complex usage scenarios such as industrial dust removal and outdoor operations, ensuring the ease of use while fully guaranteeing the product's operational reliability and safety. The clamp-on terminals ensure electrical continuity while providing additional resistance to prevent accidental disconnection when the user touches the power-off button or when the equipment is subjected to external pulling or vibration. This counteracts some of the force that could cause the fan head to come loose from the power supply unit without active unlocking. It also prevents momentary disconnection between the power supply terminals and the connection terminals, or between the detection terminals and the conductive terminals, due to accidental fan head retraction. This avoids sudden power outages during high-current operation, which could cause reverse current surges and damage to power components in the motor drive circuit. Furthermore, it prevents identification failures and power output loss caused by interruptions in the detection circuit, ensuring continuous power supply and stable control throughout equipment operation. Meanwhile, for high-current output conditions of high-power fans, the clip-on electrical connection can increase the conductive contact area between terminals and reduce contact resistance; for working circuits that carry high current, it can reduce contact voltage drop and heat loss, and improve the stability and operating efficiency of power supply.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the power supply unit of the present invention; Figure 3 This is a schematic diagram of the fan head structure of the present invention; Figure 4 This is a schematic diagram of the structure of the active block of the present invention; Figure 5 This is a circuit diagram of the charging management system of the present invention; Figure 6 This is the control circuit diagram of the main control board of the present invention; Figure 7 This is the motor control circuit diagram of the present invention; Figure 8 This is the circuit diagram of the detection loop of the present invention; Figure 9 This is a circuit diagram of the voltage-selective output of the present invention; Figure 10This invention relates to a battery voltage detection circuit, a battery-to-5V boost circuit, and a button circuit diagram. The corresponding labels in the attached diagram are explained as follows: 1. Power supply unit; 11. Handle housing; 12. Plug interface; 13. Plug slot; 14. Movable block; 15. Buckle; 16. Retract button; 17. Spring; 2. Fan head; 21. Head housing; 22. Connecting interface; 23. Slot; 3. Main control board. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-10 A replaceable high-power fan with hardware platform compatibility includes a power supply unit 1 and a fan head 2 that can be detached and assembled with the power supply unit 1. The power supply unit 1 is specifically the handle component of the violent fan, including a handle housing 11, multiple battery cells are installed inside the handle housing 11, and a plug interface 12 is provided at the upper end of the handle housing 11. The fan head 2 includes a head housing 21, inside which a high-speed brushless motor and multi-blade turbine fan blades are installed, and a connection interface 22 is provided at the lower end of the head housing 21; It also includes a main control board 3, which is located inside the handle housing 11. The battery cell 12 is electrically connected to the main control board 3. The main control board 3 is also equipped with a start / stop button and an adjustment button. The start / stop button and the adjustment button are exposed through the operation holes reserved on the handle housing 11 for user operation and control. The main control board 3 is equipped with an identification unit, and the fan head 2 is configured with type information corresponding to its performance parameters. The identification unit can identify the type information of the fan head 2 and control the power supply unit 1 to output the corresponding power supply parameters according to the identification result.

[0026] Specifically, in this embodiment, the identification unit is integrated on the main control board 3. After the fan head 2 and the power supply unit 1 are assembled and connected, the identification unit immediately identifies and reads the type information of the fan head 2. After receiving the identification result from the identification unit, the main control board 3 adjusts the power supply unit 1 to output a power supply voltage and power that match the nominal parameters of the fan head 2, providing the fan head 2 with suitable working power and ensuring the normal start-up and stable operation of the fan head 2. With the detachable and removable design of the fan head 2 and the power supply unit 1, users can replace the fan head 2 with different performance specifications according to the actual usage scenario; relying on the automatic identification and reading of the fan head 2 type information by the identification unit, the power supply unit 1 can adaptively match the output parameters. When the identification result is an incompatible model or identification fails, the main control board 3 controls the power supply unit 1 to refuse to output power. While realizing the convenient plug-and-play experience, it avoids the burn-out failure caused by voltage mismatch from the root, and improves the product's flexibility of use and power safety. Based on this hardware-compatible platform architecture, users can purchase fan heads 2 with different performance levels (such as low-torque long-lasting models, high-speed large-airflow models, etc.) and power supply units 1 with different specifications (such as lightweight portable models, high-capacity high-voltage models, etc.) to freely combine and match according to different usage needs such as industrial dust removal and daily heat dissipation. This breaks the limitations of traditional high-performance fans that are "one machine, one power supply, and fixed factory performance" and meets the diverse usage scenarios of users.

[0027] In this embodiment, the type information of the fan head 2 can be specifically represented by passive hardware coding, such as identification resistor parameters corresponding to different nominal voltages. The identification unit can quickly determine the type of the fan head 2 by reading the resistance value.

[0028] In one embodiment, a passive coding component is provided on the fan head 2, and the identification unit obtains the type information of the fan head 2 based on the detection of the passive coding component; The identification unit includes a detection terminal; The identification unit and the passive coding component are detected by electrical conduction, including conductive terminals, and the detection terminals and conductive terminals are electrically connected to form a detection circuit; In different embodiments, the passive hardware coding form can also be radio frequency / electromagnetic coding, optical coding, surface acoustic wave (SAW) coding, mechanical / structural coding, and material property coding; like Figure 8 As shown, this is the identification circuit of this embodiment. The identification circuit is divided into two parts: the detection circuit on the side of the body (power supply unit 1) and the passive coding circuit on the side of the fan head 2. The two are connected through a dedicated identification interface to form a complete detection circuit, and are independent of the fan working circuit and do not interfere with each other. The core function of the detection circuit on the fuselage side (power supply unit 1) is to provide detection power, switch control, and voltage sampling, and includes the following components: Pull-up resistor R96: The upper end is connected to the 5V power supply VDD, and the lower end is connected to the HC detection node, and also to pin 1 of the chassis interface JP1. The HC node is ultimately connected to the ADC sampling pin of the main control MCU, which is the acquisition point for the identification signal.

[0029] Switch Q46 (N-channel MOSFET): As the main switch of the detection circuit, its drain is connected to pin 2 of JP1, and its source is grounded to GND. It is used to control the on and off of the detection circuit and realize power consumption management.

[0030] Gate bias circuit (R119, R118): R119 (100Ω) is a gate current limiting resistor, which connects the control signal V-HC to the gate of Q46. V-HC is output from the IO port of the main control MCU (main control board 3); R118 (10kΩ) is a gate pull-down resistor, which ensures that Q46 is reliably cut off when there is no control signal, and avoids false turn-on.

[0031] Identification Interface JP1: A dedicated 2-pin identification socket on the side of the unit, which is the electrical contact for connecting to the fan head 2.

[0032] The passive coding circuit on both sides of the fan head uses passive resistor coding as its core. It can carry type information without power supply to the fan head (fan head 2). Different fan head specifications are equipped with identification resistors of different resistance values, and the resistance values ​​correspond one-to-one with the fan head type. Each fan head comes with a 2-pin connector (JP2 / JP3 / JP4 / JP5). A fixed-value identification resistor is connected between the two pins of the connector; Fan head 1: identification resistor R97=5kΩ, Fan head 2: identification resistor R98=7.5kΩ, Fan head 3: identification resistor R99=10kΩ, Fan head 4: identification resistor R120=15kΩ; The difference in resistance value is the "type information" of the fan head, which corresponds to different rated voltage and power levels.

[0033] Working principle During the circuit conduction phase, after fan head 2 and power supply unit 1 are assembled, the body JP1 is physically connected to the corresponding interface of the fan head. The identification resistor of the fan head is connected to the body circuit. The main control MCU outputs a high-level V-HC signal, which is applied to the gate of Q46 after being current-limited by R119. When the gate-source voltage of Q46 reaches the conduction threshold, the MOSFET is turned on. At this time, pin 2 of JP1 is connected to GND through Q46, and the entire detection circuit is conducted: 5V → R96 → JP1-1 → fan head identification resistor → JP1-2 → Q46 → GND The voltage divider identification principle is as follows: R96 (10kΩ) and the fan head identification resistor Rx form a series voltage divider circuit. The voltage at the HC node is the voltage division value of the identification resistor Rx. The main control MCU collects the voltage value of the HC pin through the ADC, and can calculate the resistance value of the currently connected identification resistor. Then, it matches the preset resistance value-fan head parameter mapping table to determine the model, rated voltage and rated power of the current fan head 2. The voltage difference between each gear is significant, the MCU has high identification accuracy and strong anti-interference ability. The operating current of the detection circuit is in the microampere range; Continuous monitoring and security protection The MCU employs a continuous cyclic sampling mechanism for the HC pin (sampling more than 10 times per second): after power-on, it first completes the initial identification, matches the corresponding power supply parameters, and then starts the output; it continuously monitors throughout the entire operation. When it detects that the HC voltage exceeds the normal range (such as when the head is removed and the HC is pulled up to close to 5V), or identifies an abnormal resistance value without a corresponding mapping, the MCU immediately cuts off the power supply output, realizing power-off upon plugging and unplugging and power rejection for incompatible models, thus avoiding the risk of burn-out from the hardware level.

[0034] Preferably, when the identification unit cannot identify the type information of the fan head 2 or the identification result is incompatible, the power supply unit 1 remains in a power-off state.

[0035] In one embodiment, such as Figure 8 As shown, it also includes a detection switch module, which is connected in series in the detection loop of the identification unit and the passive encoder; When the equipment is powered on, the detection switch module controls the detection circuit to conduct and operate; when the equipment is powered off, the detection switch module controls the detection circuit to disconnect and stop detection. This is a power consumption control mechanism. The detection switch module is specifically Q46. In the power off / standby state: the MCU outputs V-HC at a low level, the gate of Q46 is pulled down to ground potential by R118, the MOSFET is completely cut off, the detection circuit is completely disconnected, there is no static current, and zero power consumption is achieved. Normal operating condition: The detection circuit operates at a microampere level (for example, when a 10kΩ resistor is connected, the total current is only 0.25mA), the power consumption of the whole machine is negligible, and it does not affect the battery life; In summary, by setting separate detection terminals and conductive terminals, the type identification can be achieved without power supply to the machine head (power supply unit 1), relying solely on resistors. This approach is low-cost, highly reliable, and suitable for mass production of multi-specification machine heads. Furthermore, the Q46 controller manages the continuity of the detection circuit, balancing detection functionality with low power consumption requirements. Additionally, it features real-time hot-swap protection, a continuous sampling mechanism supporting hot-swap operations, and immediate power cut-off upon removal to prevent incorrect connection that could lead to a mismatch between the output voltage of power supply unit 1 and fan head 2, resulting in direct burn-out damage.

[0036] Furthermore, the passive coding electrical continuity detection scheme of the detection circuit ensures strong anti-interference capabilities and is unaffected by factors such as dust, temperature and humidity fluctuations in the operating environment. It can stably adapt to various complex application scenarios such as industrial dust removal and outdoor operations, ensuring both ease of use and full guarantee of product operational reliability and safety.

[0037] like Figure 7 and Figure 9As shown, in one embodiment, the power supply unit 1 is provided with a power supply terminal, and the fan head 2 is provided with a power connection terminal. The power supply terminal and the power connection terminal are electrically connected to form a working electrical circuit acting on the fan head 2. The detection circuit has an independent power supply path relative to the working circuit. The two belong to different power supply circuits and are connected through independent dedicated terminals, without sharing a conductive path. Among them, the working circuit formed by the connection between the power supply terminal and the power connection terminal carries the large current power supply required for the operation of the motor, which corresponds to the main power output path of the battery cell group of power supply unit 1. The separately configured detection terminal and conductive terminal form an independent circuit, which physically isolates the detection circuit from the working electrical circuit. The detection circuit only carries a microampere-level identification detection current and is dedicated to collecting the type information of fan head 2. This avoids large current fluctuations and electromagnetic interference generated during the start-up, shutdown, and speed adjustment of the fan motor from entering the detection circuit, ensuring the continuous accuracy of the identification results.

[0038] In one embodiment, the detection terminal and the power supply terminal are clip-on terminal sockets, and the conductive terminal and the power receiving terminal are conductive inserts, so that the detection terminal and the conductive terminal, as well as the power supply terminal and the power receiving terminal, form surface contact and conduction. The clip-on terminal socket is fixedly embedded in the mating end face of the power supply unit 2 and electrically connected to the main control board 3. It has a conductive clamping piece with elastic reset capability inside. The socket opening faces the assembly insertion direction of the fan head 2. The conductive insert is fixedly set on the mating end face of the fan head 2, with a flat plate structure and extending outward along the assembly direction. The arrangement position corresponds one-to-one with the clip-on terminal socket, and the thickness of the insert is adapted to the clamping gap of the socket. The power supply terminals and connection terminals of the corresponding working circuit and the detection terminals and conductive terminals of the corresponding detection circuit adopt the same surface contact docking form and are arranged in sections on the docking end face to ensure that the working circuit and the detection circuit are independent of each other and do not interfere with each other.

[0039] When the fan head 2 and the power supply unit 1 are connected and aligned in the assembly direction, the conductive inserts are simultaneously inserted into the corresponding clip-on terminal sockets. The elastic clamping plates inside the sockets are tightly attached to the two sides of the conductive inserts, and a stable surface contact conduction state is maintained by the positive clamping force generated by the elastic deformation.

[0040] This clip-on connection structure ensures electrical conductivity while simultaneously enhancing the stability of the mechanical connection. The bidirectional clamping force of the clamping plate on the conductive insert creates a stable contact friction between the insert and the socket mating surfaces. When the user accidentally touches the power-off button or the equipment is subjected to external pulling or vibration, this contact friction provides additional resistance, offsetting some of the force that would cause the fan head 2 to come loose from the power supply unit 1 without active unlocking. This prevents the power supply terminals from being disconnected from the electrical terminals, and the detection terminals from being disconnected from the conductive terminals due to the fan head 2's accidental removal. On the one hand, it avoids the motor suddenly losing power under high current operation, which could cause reverse current surges and damage to power components in the motor drive circuit. On the other hand, it also avoids identification failures and power output loss caused by the detection circuit being disconnected midway, ensuring the continuity of power supply and control stability throughout the entire operation of the equipment. The power supply terminal and the receiving terminal, as well as the detection terminal and the conductive terminal, simultaneously form a surface contact conductive state. The conductive structure, which uses a clip-on terminal socket and conductive insert, is compatible with the hardware structure of passive coded detection of electrical continuity. In addition, for the high current output of the high-power fan, the clip-on electrical connection can increase the conductive contact area between the terminals and reduce the contact resistance. For the working circuit that carries high current, it can reduce contact voltage drop and heat loss, and improve the stability and operating efficiency of the power supply.

[0041] For identification circuits that carry microampere-level detection current, signal fluctuations and identification failures caused by poor contact can be avoided, ensuring the accuracy and long-term stability of machine head type identification.

[0042] Furthermore, the power supply unit 1 is equipped with a voltage selection output module, which is connected to the main control board 3 via a signal. After the identification unit obtains the fan head 2 type information based on the detection of the passive coding component, the voltage selection output module outputs different levels of power supply voltage that match the fan head 2 by switching the number of cells connected in series in the working circuit. The voltage selection output module includes a multi-channel cell selection switch array and a boost drive branch; specifically, the main control chip U6 of the main control board (3) identifies different heads and controls BOT_PWM to output different duty cycles to U4 to boost the output voltage to the gate of the MOS control pin. For example, if 12.6V is needed to turn on Q28 and Q32, cells CR12+, CR1+, and CR13 are connected in series, and the three cells are connected in series (4.2V*3=12.6V), and the output VMOTO=12.6V. Similarly, eight cells are connected in series, 4.2V*8=33.6V, and different voltages can be output by controlling the number of cells connected in series; Among them, pin 3 of U4 is the feedback pin for the output voltage after boosting. The main control board (3) outputs a signal to control Q43. Opening and closing Q43 affects the voltage of pin 3 of U4, and then VBOOT outputs different voltages. For example, when the 3 batteries are turned on, the output voltage of VBOOT is 18V. When ENV3 is high, Q31 is turned on. When the control pin of Q27 goes low, Q27 is turned on. When the control pin of Q28 is 18V, Q28 is turned on, and VMOTO outputs 12.6V.

[0043] In one embodiment, a latching locking assembly is provided between the power supply unit 1 and the fan head 2, the latching locking assembly being used to achieve mechanical locking of the fan head 2 after assembly; The latching assembly includes insertion slots 13 on both sides of the inner wall of the insertion interface 12, a movable block 14 in the insertion slot 13, a latch 15 on the upper end of the movable block 14, a retraction button 16 on the side facing the handle housing 11, and a spring 17 on the opposite side of the movable block 14 to the retraction button 16, the spring 17 being disposed between the movable block 14 and the inner wall of the insertion slot 13; the latching assembly also includes slots 23 on both sides of the interface 22 on the head housing 21, the fan head 2 being connected to the power supply unit 1. During assembly, the interface 22 is inserted into the corresponding interface 12. The lower end face of the interface 22 is pushed against the buckle 15 (the upper end of the buckle 15 is set on the guide slope), causing the movable block 14 to compress the spring 17 and move inward. After the interface 22 is inserted into the inverted slot 13 at the edge, the spring 17 pushes the movable block 14 to reset, and the buckle 15 engages with the slot 23 to complete the mechanical locking. When the fan head 2 needs to be disassembled, simply press the unplug button 16 to separate the buckle 15 from the slot 23, and the fan head 2 can be removed from the power supply unit 1.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A replaceable high-performance fan for the chassis head based on hardware platform compatibility, characterized in that, Includes a power supply unit (1) and a fan head (2) that can be detached and assembled with the power supply unit (1); It also includes a main control board (3), on which an identification unit is provided. The fan head (2) has type information. The identification unit can identify the type information of the fan head (2) and control the power supply unit (1) to output the corresponding power supply parameters according to the identification result.

2. The replaceable high-performance fan for the chassis head based on hardware platform compatibility as described in claim 1, characterized in that, The fan head (2) is provided with a passive coding component, and the identification unit obtains the type information of the fan head (2) based on the detection of the passive coding component.

3. The replaceable high-performance fan for the chassis head based on hardware platform compatibility according to claim 2, characterized in that, When the identification unit cannot identify the type information of the fan head (2) or the identification result is incompatible, the power supply unit (1) remains in a power-off state.

4. The replaceable high-performance fan for the head unit based on hardware platform compatibility as described in claim 2 or 3, characterized in that, The identification unit includes a detection terminal; The identification unit and the passive coding component are detected by electrical conduction. The passive coding component includes conductive terminals, and the detection terminals and the conductive terminals are electrically connected to form a detection circuit.

5. The replaceable high-performance fan for the head unit based on hardware platform compatibility according to claim 4, characterized in that, The power supply unit (1) is provided with a power supply terminal, and the fan head (2) is provided with a power connection terminal. The power supply terminal and the power connection terminal are electrically connected to form a working electrical circuit that acts on the fan head (2). The detection circuit has an independent power supply path relative to the working electrical circuit.

6. The replaceable high-performance fan for the chassis head based on hardware platform compatibility according to claim 5, characterized in that, It also includes a detection switch module, which is connected in series in the detection loop of the identification unit and the passive encoder; When the equipment is powered on, the detection switch module controls the detection circuit to operate; when the equipment is powered off, the detection switch module controls the detection circuit to disconnect and stop detection.

7. The replaceable high-performance fan for the chassis head based on hardware platform compatibility as described in claim 6, characterized in that, The operating current of the detection circuit is in the microampere range.

8. The replaceable high-performance fan for the chassis head based on hardware platform compatibility according to claim 5, characterized in that, The detection terminal and power supply terminal are clip-on terminal sockets, and the conductive terminal and power connection terminal are conductive inserts, so that the detection terminal and conductive terminal, as well as the power supply terminal and power connection terminal, form surface contact and conduction.

9. The replaceable high-performance fan for the chassis head based on hardware platform compatibility according to claim 5, characterized in that, The power supply unit (1) is equipped with a voltage selection output module, which is connected to the main control board (3) via signal. After the identification unit obtains the fan head (2) type information of the fan head (2) based on the detection of the passive coding component, the voltage selection output module outputs different levels of power supply voltage that match the fan head (2) by switching the number of cells connected in series in the working circuit.

10. The replaceable high-performance fan for the chassis head based on hardware platform compatibility according to claim 1, characterized in that, A latching locking assembly is provided between the power supply unit (1) and the fan head (2), which is used to achieve mechanical locking of the fan head (2) after assembly.

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