Double signal double control single control automatic control type stepless speed change radiator fan assembly

Abstract

This invention discloses a dual-signal, dual-control, single-control automatic continuously variable speed radiator fan assembly, relating to the field of radiator fan technology. To address the problem of dust accumulation and difficulty in cleaning radiator fans after prolonged use, the device includes a carrier turntable and a brushless motor. The carrier turntable is connected to the output shaft of the brushless motor via a coupling. Evenly distributed fan blades are fixedly connected to the outer wall of the top of the carrier turntable, with the tops of multiple fan blades secured by rings. Evenly distributed limiting arc-shaped rods are fixedly connected to the outer walls of the carrier turntable, and a dust-collecting mechanism is slidably connected inside the limiting arc-shaped rods. In this invention, the dust-collecting cotton effectively absorbs dust from the fan blades and the area surrounded by them, while also covering the fan blades to prevent dust accumulation on the blades and carrier turntable. Furthermore, when cleaning the radiator fan, only the dust-collecting cotton needs to be replaced, eliminating the need for cleaning fluids and saving time.

Description

Technical Field

[0001] This invention relates to the field of radiator fan technology, and more particularly to a continuously variable speed radiator fan assembly with dual-signal dual-control single-control automatic control. Background Technology

[0002] A radiator fan is a fan located directly behind the radiator core, driven by a crankshaft via a transmission belt or an electric motor. It draws air and accelerates its flow through the radiator core to enhance the cooling of the water. Currently, in existing technology, while drawing air to accelerate its flow through the radiator core, the radiator fan also draws in dust from the air. This dust adheres to the fan blades and accumulates over time, affecting the performance of the radiator fan.

[0003] A search revealed that Chinese patent application number CN202011391107.5 discloses an automotive radiator fan assembly, including a housing and a radiator fan, and further including: at least two protective covers evenly distributed on the outside of the radiator fan; and a synchronous drive mechanism for synchronously moving all the protective covers toward the center of the radiator fan to form a protective space for the radiator fan.

[0004] The automotive radiator fan assembly in the aforementioned patent contains a radiator fan motor and a drive motor, which are two independent control centers. On the one hand, this increases the cost of the radiator fan, and on the other hand, the two independent control centers are prone to damage to the device if not operated properly, resulting in a low safety factor. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a dual-signal, dual-control, single-control automatic control continuously variable speed radiator fan assembly, which effectively solves the problems of high cost and low safety factor caused by dual control centers in existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A dual-signal, dual-control, single-control automatic continuously variable speed radiator fan assembly includes a carrier turntable, a fixed frame, and a brushless motor. The brushless motor is fixedly connected inside the fixed frame. Multiple fan blades arranged in a ring are fixedly connected to the outer wall of the top of the carrier turntable. The tops of the multiple fan blades are fixed by a support ring. Evenly distributed limiting arc-shaped rods are fixedly connected to the outer walls of the carrier turntable. An externally threaded cylinder is fixedly connected to the outer side of the fixed frame. A support ring is also fixedly connected to the outer side of the fixed frame. Evenly distributed push-telescopic rods are fixedly connected to the inner wall of one side of the support ring. An internally threaded rotating ring is fixedly connected to the top of the telescopic end of each push-telescopic rod. The internally threaded rotating ring and the externally threaded cylinder are driven by a threaded connection. A dust collection mechanism is used to cover and collect dust from the fan blades, including a carrier cylinder movably connected inside the limiting arc-shaped rods. A support ring is fixedly connected to one side of the carrier cylinder. The mounting platform contains a dust-absorbing cotton, which is positioned between the fan blades when the radiator fan is not operating. A limiting mechanism, used to limit and drag the dust-collecting mechanism, includes multiple limiting rods fixedly connected to the top of an internally threaded rotating ring in a ring-like structure. Each limiting rod has a uniformly distributed limiting telescopic rod fixedly connected to its side facing the dust-collecting mechanism. When the radiator fan is operating and the supporting cylinder rotates due to centrifugal force, the limiting telescopic rods cooperate with the mounting platform on the supporting cylinder to prevent rotation. A locking mechanism, used to support and lock the dust-collecting mechanism, includes a locking telescopic rod fixedly connected to the bottom of the supporting turntable. The telescopic end of the locking telescopic rod is rotatably connected to an intermediate connecting rod, and one end of the intermediate connecting rod is rotatably connected to a locking connecting rod. When the radiator fan is not operating, the locking connecting rod can press against the locking groove at the bottom of the supporting cylinder.

[0010] Preferably: a fixed disc is fixedly connected to the outer wall of the top of the brushless motor; a fixed connecting rod is fixedly connected to the outer wall of the bottom of the fixed disc; a supporting connecting rod is fixedly connected to the outer wall of one side of the fixed connecting rod; an externally threaded cylinder is fixedly connected to the outer wall of one side of the supporting connecting rod; a supporting ring is fixedly connected to the outer wall of one side of the fixed connecting rod via another supporting connecting rod; a uniformly distributed push telescopic rod is fixedly connected to the inner wall of one side of the supporting ring; an internally threaded rotating ring is fixedly connected to the top of the telescopic end of the push telescopic rod; the internally threaded rotating ring and the externally threaded cylinder are driven by a thread; and multiple limiting mechanisms are fixedly connected to the top of the telescopic end of the internally threaded rotating ring.

[0011] Preferably, the inner wall of the telescopic end of the limiting telescopic rod is rotatably connected to a limiting wheel, and the limiting wheel slides on the surface of the bearing cylinder.

[0012] Preferably, the limiting wheel and the limiting hole opened on the bearing cylinder are mutually matched.

[0013] Preferably, the bottom of the bearing turntable is fixedly connected to the two sides near the locking link with limiting columns.

[0014] Preferably, the push telescopic rod, the locking telescopic rod, and the limiting telescopic rod all have a hollow rod body with a spring inside, and the other end of the spring is fixed to the telescopic end.

[0015] Preferably, the elastic modulus of the springs inside the pushing telescopic rod, the locking telescopic rod, and the limiting telescopic rod decreases sequentially.

[0016] Preferably, the load-bearing turntable is connected to the output shaft of the brushless motor via a coupling.

[0017] Preferably, a disassembly assembly is provided between the dust-absorbing cotton and the mounting platform.

[0018] The technical solution provided by this invention has the following advantages compared with known public technologies:

[0019] 1. The dust-absorbing cotton can effectively absorb dust from the fan blades and the area they surround. It can also cover the fan blades to prevent dust from accumulating on the blades and the bearing plate. When cleaning the radiator fan, you only need to replace the dust-absorbing cotton, without having to use cleaning fluid or other methods, saving time.

[0020] 2. When the radiator fan is running, the supporting cylinder rotates, causing the limiting wheel to enter the limiting hole. This causes the dust collection mechanism to rotate along with the limiting mechanism, which in turn causes the internal threaded ring, which is fixedly connected to the limiting mechanism, to rotate. Under the action of the threads on the surface of the external threaded cylinder, the internal threaded ring moves downward along with the limiting mechanism and the dust collection mechanism, thus achieving the purpose of keeping the dust collection mechanism away from the fan blades when the radiator fan is running.

[0021] 3. The elastic modulus of the springs inside the push telescopic rod, the locking telescopic rod, and the limiting telescopic rod decreases in sequence. During the restoration process, the dust collection mechanism first returns to its original height under the elastic force of the push telescopic rod, and then the dust collection mechanism rotates to its original position under the elastic force of the locking telescopic rod. At this time, the limiting wheel in the limiting hole pops out and continues to slide on the bearing cylinder. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly proposed in this invention.

[0024] Figure 2 This is a schematic diagram of the internal structure of the fan assembly of the dual-signal dual-control single-control automatic control continuously variable radiator proposed in this invention.

[0025] Figure 3 This is a cross-sectional bottom view of the fan assembly of the dual-signal dual-control single-control automatic control continuously variable speed radiator proposed in this invention.

[0026] Figure 4 This is a cross-sectional top view of the fan assembly of the dual-signal dual-control single-control automatic control continuously variable speed radiator proposed in this invention.

[0027] Figure 5 This is an enlarged schematic diagram of part A of the dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly proposed in this invention.

[0028] Figure 6 This is a schematic diagram of the dust collection mechanism of the dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly proposed in this invention.

[0029] Figure 7 This is a side view of the dust collection mechanism of the dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly proposed in this invention.

[0030] Figure 8 This is a schematic diagram of the limiting mechanism of the dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly proposed in this invention.

[0031] The labels in the diagram represent: 1. Load-bearing turntable; 2. Dust collection mechanism; 201. Load-bearing cylinder; 202. Mounting platform; 203. Dust collection cotton; 204. Limiting hole; 205. Locking slot; 3. Limiting mechanism; 301. Limiting connecting rod; 302. Limiting telescopic rod; 303. Limiting wheel; 4. External threaded cylinder; 5. Limiting arc rod; 6. Locking mechanism; 601. Locking connecting rod; 602. Intermediate connecting rod; 603. Locking telescopic rod; 7. Support ring; 8. Internal threaded swivel ring; 9. Fan blade; 10. Support ring; 11. Fixed frame; 12. Brushless motor; 13. Pushing telescopic rod; 14. Limiting column. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] The present invention will be further described below with reference to embodiments.

[0034] Example: Dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly, such as... Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, the device includes a support turntable 1, a fixed frame 11, and a brushless motor 12. The output shafts of the support turntable 1 and the brushless motor 12 are connected by a coupling. The brushless motor 12 is fixedly connected inside the fixed frame 11. Multiple fan blades 9 are fixedly connected to the outer wall of the top of the support turntable 1 in a ring shape. The tops of the multiple fan blades 9 are fixed by a support ring 10. A dust collection mechanism 2 is slidably connected inside the limiting arc rod 5. The number of dust collection mechanisms 2 is equal to the number of fan blades 9. The dust collection mechanism 2 includes a support cylinder 201 and a mounting platform 202. One end of the mounting platform 202 is fixedly connected to one side of the support cylinder 201. A dust collection cotton 203 is embedded and fixed inside the mounting platform 202.

[0035] The dust collection mechanism 2 is used to collect dust from the fan blades 9. The dust collection cotton 203 can effectively absorb dust from the fan blades 9 and the area surrounded by the fan blades 9. On the other hand, it can cover the fan blades 9 to prevent dust from accumulating on the fan blades 9 and the carrier turntable 1. At the same time, when cleaning the radiator fan, only the dust collection cotton 203 needs to be replaced, without the need to use cleaning fluid or other methods, saving time. The bottom of the brushless motor 12 is fixed to the external wall to ensure the stability of the device operation.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 8 As shown, the outer walls of the bearing turntable 1 are fixedly connected with evenly distributed limiting arc-shaped rods 5. An externally threaded cylinder 4 is fixedly connected to the outer side of the fixed frame 11. A supporting ring 7 is fixedly connected to the outer side of the fixed frame 11. An evenly distributed pushing telescopic rod 13 is fixedly connected to the inner wall of one side of the supporting ring 7. An internally threaded rotating ring 8 is fixedly connected to the top of the telescopic end of the pushing telescopic rod 13. The internally threaded rotating ring 8 and the externally threaded cylinder 4 are driven by a thread. An evenly distributed limiting mechanism 3 is fixedly connected to the outer wall of the top of the internally threaded rotating ring 8. The number of limiting mechanisms 3 is equal to the number of vacuuming mechanisms 2. Each limiting mechanism 3 includes a limiting link 301. A uniformly distributed limiting telescopic rod 302 is fixedly connected to the side of the limiting link 301 facing the vacuuming mechanism 2. A limiting wheel 303 is rotatably connected to the inner wall of the telescopic end of the limiting telescopic rod 302. A uniformly distributed limiting circular hole 204 is machined on the inner wall of the side of the bearing cylinder 201 near the mounting platform 202. The number of limiting circular holes 204 is equal to the number of limiting telescopic rods 302.

[0037] The limiting mechanism 3 is used to drag the dust collection mechanism 2 away from the fan blade 9 when the radiator fan is working, so as to avoid affecting the air intake of the radiator fan. The limiting wheel 303 slides on the outer wall of the supporting cylinder 201. When the radiator fan is running, the supporting cylinder 201 rotates, so that the limiting wheel 303 enters the limiting hole 204, which in turn causes the dust collection mechanism 2 to rotate with the limiting mechanism 3. This causes the internal threaded ring 8, which is fixedly connected to the limiting mechanism 3, to rotate. Under the action of the thread on the surface of the external threaded cylinder 4, the internal threaded ring 8 moves downward with the limiting mechanism 3 and the dust collection mechanism 2, so as to achieve the purpose of the dust collection mechanism 2 being away from the fan blade 9 when the radiator fan is running. The push telescopic rod 13 on the supporting ring 7 can pop out when the radiator fan stops running to reset the internal threaded ring 8 and the limiting mechanism 3. The sliding of the limiting wheel 303 on the supporting cylinder 201 can reduce the friction on the supporting cylinder 201.

[0038] like Figure 4 , Figure 5 , Figure 7 As shown, the bottom of the carrying turntable 1 is fixedly connected with evenly distributed locking mechanisms 6. The number of locking mechanisms 6 is equal to the number of vacuuming mechanisms 2. Each locking mechanism 6 includes a locking connecting rod 601, a middle connecting rod 602, and a locking telescopic rod 603. The telescopic end of the locking telescopic rod 603 is rotatably connected to the inner wall of one end of the middle connecting rod 602. One end of the locking connecting rod 601 is rotatably connected to the inner wall of the other end of the middle connecting rod 602. Restricting connecting columns 14 are fixedly connected to both sides of the bottom of the carrying turntable 1 near the locking connecting rod 601. The bottom of the carrying cylinder 201 is machined with a locking groove 205.

[0039] The locking link 601 moves in the locking groove 205 at the bottom of the supporting cylinder 201 and at the bottom of the supporting turntable 1. The limiting link 14 restricts the locking link 601 to move only in a straight line. On the one hand, the locking link 601 drives the dust-absorbing cotton 203 on the supporting cylinder 201 to be clamped in the middle of the fan blade 9. On the other hand, it supports the fan blade 9 in the limiting arc rod 5. At the same time, as the locking telescopic rod 603 retracts, the locking link 601 retracts to the bottom of the supporting turntable 1. At this time, the dust-absorbing mechanism 2 can move in the limiting arc rod 5.

[0040] The push telescopic rod 13, the locking telescopic rod 603, and the limiting telescopic rod 302 are all hollow rods with springs inside. The other end of the spring is fixed to the telescopic end. The elastic modulus of the springs inside the push telescopic rod 13, the locking telescopic rod 603, and the limiting telescopic rod 302 decreases in sequence.

[0041] The elastic modulus of the springs inside the push telescopic rod 13, the locking telescopic rod 603, and the limiting telescopic rod 302 decreases sequentially. This results in the push telescopic rod 13 having the greatest elastic force under the same conditions, followed by the locking telescopic rod 603, and the limiting telescopic rod 302 having the least elastic force. In other words, during the restoration process, the vacuuming mechanism 2 first returns to its original height under the elastic force of the push telescopic rod 13, and then rotates to its original position under the elastic force of the locking telescopic rod 603. At this time, the limiting rotating wheel 303 in the limiting circular hole 204 is ejected, and the limiting rotating wheel 303 continues to slide on the bearing cylinder 201.

[0042] The device is controlled by a single-control brushless motor 12. The centrifugal force generated by the rotation of the bearing turntable 1 causes the bearing cylinder 201 to rotate and the internal spring of the locking telescopic rod 603 to contract, which in turn causes the limiting mechanism 3 to be integrated with the dust collection mechanism 2. When rotating, the inner threaded ring 8 carries the integrated dust collection mechanism 2 and the limiting mechanism 3 to move on the outer threaded cylinder 4, realizing automation and dual control, and improving the practicality of the device.

[0043] In this embodiment, when the radiator fan is not working, the locking groove 205 in the dust collection mechanism 2, under the squeezing action of the locking connecting rod 601, always keeps the dust collection cotton 203 between the fan blades 9. At this time, the springs in the pushing telescopic rod 13 and the locking telescopic rod 603 are in their natural state, the limiting telescopic rod 302 is in its retracted state, and the limiting wheel 303 slides on the bearing cylinder 201. When the radiator fan is working, the brushless motor 12 drives the bearing turntable 1 to rotate. At this time, the locking telescopic rod 603 is affected by centrifugal force, and the spring inside the locking telescopic rod 603 begins to retract. The intermediate connecting rod 602 rotates and retracts the locking connecting rod 601 back to the bottom of the bearing turntable 1. At the same time, the entire dust collection mechanism 2 is also subjected to centrifugal force when rotating under the restriction of the limiting arc rod 5. At this time, the bearing cylinder 201 rotates until the mounting platform 202, the dust collection cotton 203 are located at the notch of the limiting arc rod 5, and the limiting wheel 303 is on the limiting telescopic rod 302. Under the elastic force, it enters the limiting round hole 204. At this time, the dust collection mechanism 2 and the limiting mechanism 3 are a whole. The rotation of the bearing turntable 1 will cause the combination of the bearing turntable 1, the limiting mechanism 3 and the internal threaded ring 8 to rotate. Then, under the thread engagement of the external threaded cylinder 4, the internal threaded ring 8 moves downward and squeezes the push telescopic rod 13 until the dust collection mechanism 2 is separated from the position of the fan blade 9. As long as the radiator fan is working, the fan blade 9 is located below. When the radiator fan stops working, the elastic force inside the push telescopic rod 13 pushes the internal threaded ring 8 upward and sends the dust collection mechanism 2 back to its original height. Then, the elastic force inside the locking telescopic rod 603 drives the intermediate connecting rod 602 to extend the locking connecting rod 601 and squeeze the inner wall of the locking groove 205 of the bearing cylinder 201, thereby squeezing the limiting turntable 303 out of the limiting round hole 204 and placing the dust collection cotton 203 back inside the fan blade 9 for dust collection.

[0044] It is worth noting that the aforementioned push telescopic rod 13, locking telescopic rod 603, and limiting telescopic rod 302 are all electric telescopic rods.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly, comprising a carrier turntable (1), a fixed frame (11), and a brushless motor (12), wherein the brushless motor (12) is fixedly connected inside the fixed frame (11), and a plurality of fan blades (9) arranged in a ring are fixedly connected to the outer wall of the top of the carrier turntable (1), and the tops of the plurality of fan blades (9) are fixed by a supporting ring (10), characterized in that, The outer walls of the bearing turntable (1) are fixedly connected with uniformly distributed limiting arc rods (5). The outer side of the fixed frame (11) is fixedly connected with an external threaded cylinder (4). The outer side of the fixed frame (11) is fixedly connected with a support ring (7). The inner wall of one side of the support ring (7) is fixedly connected with uniformly distributed pushing telescopic rods (13). The top of the telescopic end of the pushing telescopic rod (13) is fixedly connected with an internal threaded swivel ring (8). The internal threaded swivel ring (8) and the external threaded cylinder (4) are driven by threads. It also includes: a dust collection mechanism (2) for covering and collecting dust from the fan blades (9), including a support cylinder (201) movably connected inside the limiting arc rod (5), a mounting platform (202) fixedly connected to one side of the support cylinder (201), and a dust collection cotton (203) installed inside the mounting platform (202). When the radiator fan is not working, the dust collection cotton (203) is located between the fan blades (9); The limiting mechanism (3) is used to limit and drag the vacuuming mechanism (2). It includes multiple limiting links (301) fixedly connected to the top of the internal thread swivel (8) in a ring structure. The limiting link (301) is fixedly connected to the side of the vacuuming mechanism (2) with uniformly distributed limiting telescopic rods (302). When the radiator fan is working and the bearing cylinder (201) is subjected to centrifugal force and rotates, the limiting telescopic rod (302) can cooperate with the mounting platform (202) on the bearing cylinder (201) to prevent the bearing cylinder (201) from rotating. The locking mechanism (6) is used to support and lock the dust collection mechanism (2), including a locking telescopic rod (603) fixedly connected to the bottom of the bearing turntable (1). The telescopic end of the locking telescopic rod (603) is rotatably connected to an intermediate connecting rod (602). One end of the intermediate connecting rod (602) is rotatably connected to a locking connecting rod (601). When the radiator fan is not working, the locking connecting rod (601) can press against the locking groove (205) opened at the bottom of the bearing cylinder (201). The inner wall of the telescopic end of the limiting telescopic rod (302) is rotatably connected to a limiting wheel (303), which slides on the surface of the bearing cylinder (201). The limiting wheel (303) and the limiting circular hole (204) opened on the bearing cylinder (201) fit together. The structure of the pushing telescopic rod (13), the locking telescopic rod (603), and the limiting telescopic rod (302) are all hollow rods with springs inside, and the other end of the spring is fixed on the telescopic end. The elastic modulus of the springs inside the pushing telescopic rod (13), the locking telescopic rod (603), and the limiting telescopic rod (302) decreases in sequence.

2. The dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly according to claim 1, characterized in that, The bottom of the bearing turntable (1) is fixedly connected to the two sides near the locking link (601) by limiting links (14).

3. The dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly according to claim 2, characterized in that, The load-bearing turntable (1) is connected to the output shaft of the brushless motor (12) via a coupling.

4. The dual-signal dual-control single-control automatic control continuously variable speed radiator fan assembly according to claim 3, characterized in that, A disassembly assembly is provided between the dust-absorbing cotton (203) and the mounting platform (202).

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