A matrix engine fan

Abstract

The utility model discloses a matrix type engine fan, including engine assembly, assembly mechanism and matrix mechanism, the assembly mechanism sets up the front end of engine assembly, the matrix mechanism sets up on the assembly mechanism, the assembly mechanism includes fan support, assembly component and support component, the assembly component includes idler mounting seat, idler mounting hole, fan clutch assembly mounting hole, fan pulley mounting seat, fan pulley fixed orifices, fan support installation foot, fan support mounting hole, surrounding weight reduction groove, side weight reduction groove and top weight reduction groove. This scheme has improved fan cooling efficiency, reduced fan power consumption, improved whole car economy, reduced the noise of fan, reduced the maintenance frequency and maintenance cost of fan.

Description

Technical Field

[0001] This utility model relates to the field of commercial vehicle diesel engine technology, specifically a matrix engine fan. Background Technology

[0002] Current commercial vehicle engines use a single fan, whose main drawbacks are high energy consumption, high noise, and high maintenance costs. To meet engine cooling requirements, a single fan necessitates a sufficiently large fan diameter to draw air from the radiator, enhancing radiator cooling, while simultaneously ensuring the fan's airflow covers the entire engine. The operation of a large-diameter fan consumes a significant portion of the engine's output power, typically 3%-8% under normal operating conditions and reaching 10%-15% under high loads, directly impacting vehicle power and fuel economy.

[0003] Larger diameter fans cause significant noise pollution. The blade tips of larger diameter fans have high linear velocities, reaching up to 98 m / s at engine rated speed. The noise generated by the blades cutting through the air during high-speed fan rotation is one of the main noise sources in commercial vehicles. Under high load, the noise level can exceed 80 decibels, surpassing the 65 decibel comfort standard in the driver's cabin, and can easily lead to fatigue during prolonged driving.

[0004] The maintenance cost of a single fan is relatively high. A single fan has a larger diameter, resulting in a higher fan load. The fan drive system, such as belts, bearings, and tensioners, will age prematurely due to the excessive fan load, leading to more frequent maintenance and increased costs.

[0005] The industry is constantly optimizing through technological upgrades: for example, using low-drag bionic blades to reduce noise and energy consumption, combining intelligent control (such as electronic silicone oil clutches) to shorten response delays, or improving heat dissipation efficiency through vehicle thermal management systems (such as fairings and active grille shutters). However, these measures cannot fundamentally solve the above problems.

[0006] Therefore, a solution is needed. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] In view of the shortcomings of the prior art, this utility model provides a matrix engine fan to solve the problems mentioned in the background art.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] It includes an engine assembly, an assembly mechanism, and a matrix mechanism. The assembly mechanism is located at the front end of the engine assembly, and the matrix mechanism is located on the assembly mechanism.

[0012] Preferably, the assembly mechanism includes a fan bracket, an assembly component, and a support component. The fan bracket has an arc-shaped bottom and a W-shaped top. Both the assembly component and the support component are mounted on the fan bracket. The assembly component includes an idler gear mounting seat, an idler gear mounting hole, a fan clutch assembly mounting hole, a fan pulley mounting seat, a fan pulley fixing hole, a fan bracket mounting foot, a fan bracket mounting hole, an enclosing weight-reducing groove, a side weight-reducing groove, and a top weight-reducing groove. The idler gear mounting seat is located at the center of the top front end of the fan bracket. The idler gear mounting hole penetrates both the idler gear mounting seat and the fan bracket. The fan clutch assembly mounting hole... The fan pulley mounting base is located at the four corners of the front end of the fan bracket, and the fan pulley fixing hole is provided through each fan pulley mounting base and the fan bracket. The fan bracket mounting feet are evenly arranged at the rear end of the fan bracket, and the fan bracket mounting hole is provided through each fan bracket mounting foot and the fan bracket. There are four enclosing weight reduction grooves arranged in a circular structure around the fan clutch assembly mounting hole. The side weight reduction grooves are arranged opposite each other on the left and right sides inside the fan bracket. There are two top weight reduction grooves arranged opposite each other on the top inside the fan bracket.

[0013] Preferably, the idler wheel mounting base has a stepped frustum structure, the fan clutch assembly mounting hole has a circular structure, the fan pulley mounting base has a flat cylindrical structure, the fan bracket mounting foot has an elongated cylindrical structure, the number of fan bracket mounting feet is equal to the number of fan pulley mounting bases, the four fan bracket mounting feet are distributed in a rectangular structure, and the idler wheel mounting base, fan pulley mounting base, and fan bracket mounting feet are all integrally formed with the fan bracket or the fan bracket mounting feet are welded to the fan bracket.

[0014] Preferably, each of the enclosing weight-reducing grooves is fan-shaped. The top enclosing weight-reducing groove is divided into two by the fan bracket. The side weight-reducing groove is a rounded isosceles trapezoidal structure. The top weight-reducing groove is an arc-shaped rectangular structure. The two top weight-reducing grooves are respectively located on the outward extension line of the two top enclosing weight-reducing grooves and the fan clutch assembly mounting hole.

[0015] Preferably, the support assembly includes a first reinforcing rib, a second reinforcing rib, and a third reinforcing rib. The first reinforcing rib is disposed on the back of the fan bracket and located on each of the fan bracket mounting feet. The second reinforcing rib is disposed on the back of the fan bracket and located between the fan clutch assembly mounting hole and the idler wheel mounting hole. The third reinforcing rib is disposed on the back of the fan bracket and located at the outer end of each of the side weight reduction grooves.

[0016] Preferably, the first reinforcing rib has a right-angled trapezoidal structure with rounded tips, and each of the first reinforcing ribs points to the adjacent fan pulley fixing hole on the mounting foot. The second reinforcing rib has a rounded cuboid structure and is located between the top weight-reducing grooves that are divided into two at the top. The third reinforcing rib has a rounded cuboid structure and its length is greater than the length of the side weight-reducing groove. The first reinforcing rib is welded to the fan bracket mounting foot and the fan bracket, and the second and third reinforcing ribs are both welded to the fan bracket.

[0017] Preferably, the matrix mechanism includes a pulley bearing, a pulley fixing plate, a pulley fixing bolt, a fan pulley, a fan, a fan mounting base, a fan fixing bolt, an idler pulley, an idler pulley fixing bolt, a fan clutch assembly, a clutch front bearing, a clutch rear bearing, a clutch drive pulley, a clutch fixing bolt, a fan bracket fixing bolt, a clutch drive pulley, and a drive belt. The pulley bearing is interference-fitted onto the periphery of each fan pulley mounting base. The pulley fixing plate is located at the front end of the inner ring of each pulley bearing. The pulley fixing bolt passes through the pulley fixing plate, the pulley bearing, and the fan pulley mounting base. The fan pulley is interference-fitted onto the periphery of each pulley bearing. The fan is located at the front end of each fan pulley. The fan mounting base is located between the fan and the fan pulley. The fan fixing bolts are evenly distributed on each fan mounting base. The idler pulley is located on the idler pulley mounting base, and the idler pulley fixing bolt passes through the idler pulley and the idler pulley mounting base.

[0018] Preferably, the circumference of the pulley fixing plate is equal to the circumference of the inner ring of the pulley bearing, the fan fixing bolts are distributed in a cross shape on the fan mounting base, the fan fixing bolts pass through the fan mounting base and the fan pulley to fix the fan on the fan pulley, and the fan and the fan mounting base are integrally formed.

[0019] Preferably, the fan clutch assembly is located at the front end of the fan clutch assembly mounting hole, the front clutch bearing and the rear clutch bearing are respectively located at the front end and rear end of the fan clutch assembly mounting hole, the clutch drive pulley is located at the rear end of the rear clutch bearing, the clutch fixing bolt passes through the clutch drive pulley, the rear clutch bearing and the front clutch bearing and is located inside the fan clutch assembly, the fan bracket fixing bolt passes through each of the fan bracket mounting holes, and the drive belt is arranged to wrap around each of the fan pulleys in an orderly manner.

[0020] Preferably, the clutch drive pulley is mounted and fixed on the fan clutch assembly using a clutch fixing bolt. The length of the fan bracket fixing bolt is greater than the sum of the thickness of the fan bracket and the length of the fan bracket mounting foot. The fan bracket fixing bolt fixes the fan bracket to the engine assembly. The drive belt simultaneously wraps around the idler pulley and the pulley of the fan clutch assembly 310 in the opposite direction.

[0021] (III) Beneficial Effects

[0022] This invention provides a matrix-type engine fan. It has the following advantages:

[0023] 1. This utility model adopts a matrix-type engine fan, replacing one large fan with four small-diameter fans. The four fans can more comprehensively cover the radiator, drawing air from the radiator and easily covering the entire engine with the outflowing air. Due to the small fan hub diameter and high airflow efficiency, under the same cooling effect, the total power consumed by the four small-diameter fans is less than that consumed by a single large-diameter fan, reducing power consumption by 15%-20%, thus improving the vehicle's power and economy.

[0024] 2. The diameter of the four fans is significantly reduced, which significantly reduces the linear velocity of the fan blade tips. At the engine's rated speed, the linear velocity of the small-diameter fan blade tips can be reduced to 51-55 m / s, significantly reducing the speed at which the blade tips cut the air and thus significantly reducing fan noise.

[0025] 3. Matrix fans use four smaller diameter fans, each with a lower workload, significantly reducing the load on the fan drive system, such as belts, bearings, and tensioners. This lowers maintenance frequency and costs. Attached Figure Description

[0026] Figure 1 This is a front axle side view of the matrix fan assembly structure of this utility model;

[0027] Figure 2 This is a rear axle view of the matrix fan assembly structure of this utility model;

[0028] Figure 3 This is a front view of the matrix fan assembly of this utility model mounted on the engine assembly;

[0029] Figure 4 This is an exploded view of the matrix fan assembly of this utility model;

[0030] Figure 5 This is an isometric view of the matrix fan bracket of this utility model.

[0031] In the diagram: 1-Engine assembly; 2-Assembly mechanism; 21-Fan bracket; 22-Assembly component; 221-Idler gear mounting seat; 222-Idler gear mounting hole; 223-Fan clutch assembly mounting hole; 224-Fan pulley mounting seat; 225-Fan pulley fixing hole; 226-Fan bracket mounting foot; 227-Fan bracket mounting hole; 228-Enclosing weight reduction groove; 229-Side weight reduction groove; 2210-Top weight reduction groove; 23-Support component; 231-Reinforcing rib one; 232-Reinforcing rib two; 23 3-Reinforcing rib three; 3-Matrix mechanism; 31-Pulley bearing; 32-Pulley fixing plate; 33-Pulley fixing bolt; 34-Fan pulley; 35-Fan; 36-Fan mounting base; 37-Fan fixing bolt; 38-Idler pulley; 39-Idler pulley fixing bolt; 310-Fan clutch assembly; 311-Front clutch bearing; 312-Rear clutch bearing; 313-Clutch drive pulley; 314-Clutch fixing bolt; 315-Fan bracket fixing bolt; 316-Drive belt. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-5 The present invention provides a technical solution to achieve this: it includes an engine assembly 1, an assembly mechanism 2 and a matrix mechanism 3, the assembly mechanism 2 is disposed at the front end of the engine assembly 1, and the matrix mechanism 3 is disposed on the assembly mechanism 2.

[0034] Assembly mechanism 2 includes a fan bracket 21, an assembly component 22, and a support component 23. The bottom of the fan bracket 21 has an arc-shaped structure, and the top has a W-shaped structure. The assembly component 22 and the support component 23 are both mounted on the fan bracket 21. The assembly component 22 includes an idler gear mounting seat 221, an idler gear mounting hole 222, a fan clutch assembly mounting hole 223, a fan pulley mounting seat 224, a fan pulley fixing hole 225, a fan bracket mounting foot 226, a fan bracket mounting hole 227, an enclosing weight reduction groove 228, a side weight reduction groove 229, and a top weight reduction groove 2210. The idler gear mounting seat 221 is located at the middle of the top front end of the fan bracket 21. The idler gear mounting hole 222 penetrates the idler gear mounting seat 221 and the fan bracket 21. The fan clutch assembly mounting hole 223 is located in the middle of the fan bracket 21. The fan pulley mounting seat 224 is located at the four corners of the front end of the fan bracket 21. The fan pulley fixing hole 225 is provided through each fan pulley mounting seat 224 and the fan bracket 21. The fan bracket mounting feet 226 are evenly provided at the rear end of the fan bracket 21. The fan bracket mounting hole 227 is provided through each fan bracket mounting foot 226 and the fan bracket 21. There are four enclosing weight reduction grooves 228 arranged in a circular structure around the fan clutch assembly mounting hole 223. The side weight reduction grooves 229 are arranged opposite each other on the left and right sides inside the fan bracket 21. There are two top weight reduction grooves 2210 arranged opposite each other on the top inside the fan bracket 21.

[0035] In detail, the idler gear mounting seat 221 has a stepped frustum structure, the fan clutch assembly mounting hole 223 has a circular structure, the fan pulley mounting seat 224 has a flat cylindrical structure, and the fan bracket mounting foot 226 has a long cylindrical structure. The number of fan bracket mounting feet 226 is equal to the number of fan pulley mounting seats 224. The four fan bracket mounting feet 226 are distributed in a rectangular structure. The idler gear mounting seat 221, the fan pulley mounting seat 224, and the fan bracket mounting feet 226 are all integrally formed with the fan bracket 21 or welded to the fan bracket 21.

[0036] More specifically, each enclosing weight reduction groove 228 has a fan-shaped structure. The top enclosing weight reduction groove 228 is divided into two by the fan bracket 21. The side weight reduction groove 229 has a rounded isosceles trapezoidal structure. The top weight reduction groove 2210 has an arc-shaped rectangular structure. The two top weight reduction grooves 2210 are respectively located on the outward extension line of the two top enclosing weight reduction grooves 228 and the fan clutch assembly mounting hole 223.

[0037] The support assembly 23 includes a first reinforcing rib 231, a second reinforcing rib 232, and a third reinforcing rib 233. The first reinforcing rib 231 is disposed on the back of the fan bracket 21 and located on each fan bracket mounting foot 226. The second reinforcing rib 232 is disposed on the back of the fan bracket 21 and located between the fan clutch assembly mounting hole 223 and the idler wheel mounting hole 222. The third reinforcing rib 233 is disposed on the back of the fan bracket 21 and located at the outer end of each side weight reduction groove 229.

[0038] The first reinforcing rib 231 has a right-angled trapezoidal structure and its free tip is rounded. Each reinforcing rib 231 points to the adjacent fan pulley fixing hole 225 on the mounting foot 226. The second reinforcing rib 232 has a rounded cuboid structure and is located between the top weight reduction groove 2210 which is divided into two at the top. The third reinforcing rib 233 has a rounded cuboid structure and its length is greater than the length of the side weight reduction groove 229. The first reinforcing rib 231 is welded to the fan bracket mounting foot 226 and the fan bracket 21. The second reinforcing rib 232 and the third reinforcing rib 233 are both welded to the fan bracket 21.

[0039] Matrix mechanism 3 includes a pulley bearing 31, a pulley fixing plate 32, a pulley fixing bolt 33, a fan pulley 34, a fan 35, a fan mounting base 36, a fan fixing bolt 37, an idler pulley 38, an idler pulley fixing bolt 39, a fan clutch assembly 310, a clutch front bearing 311, a clutch rear bearing 312, a clutch drive pulley 313, a clutch fixing bolt 314, a fan bracket fixing bolt 315, a clutch drive pulley 313, and a drive belt 316. The pulley bearing 31 is interference-fitted onto the periphery of each fan pulley mounting base 224. The pulley fixing plate... 32 is set at the front end of the inner ring of each pulley bearing 31. The pulley fixing bolt 33 passes through the pulley fixing plate 32, the pulley bearing 31 and the fan pulley mounting seat 224. The fan pulley 34 is interference-fitted on the periphery of each pulley bearing 31. The fan 35 is set at the front end of each fan pulley 34. The fan mounting seat 36 is set between the fan 35 and the fan pulley 34. The fan fixing bolt 37 is evenly distributed on each fan mounting seat 36. The idler pulley 38 is set on the idler pulley mounting seat 221. The idler pulley fixing bolt 39 passes through the idler pulley 38 and the idler pulley mounting seat 221.

[0040] The circumference of the pulley fixing plate 32 is equal to the circumference of the inner ring of the pulley bearing 31. The fan fixing bolts 37 are distributed in a cross shape on the fan mounting base 36. The fan fixing bolts 37 pass through the fan mounting base 36 and the fan pulley 34 to fix the fan 35 on the fan pulley 34. The fan 35 and the fan mounting base 36 are integrally formed.

[0041] The fan clutch assembly 310 is located at the front end of the fan clutch assembly mounting hole 223. The front clutch bearing 311 and the rear clutch bearing 312 are respectively located at the front and rear ends inside the fan clutch assembly mounting hole 223. The clutch drive pulley 313 is located at the rear end of the clutch rear bearing 312. The clutch fixing bolt 314 passes through the clutch drive pulley 313, the clutch rear bearing 312 and the clutch front bearing 311 and is located inside the fan clutch assembly 310. The fan bracket fixing bolt 315 passes through each fan bracket mounting hole 227. The drive belt 316 wraps around the pulley of the fan clutch assembly 310 in the opposite direction. The drive belt 316 wraps around each fan pulley 34 in an orderly manner.

[0042] The clutch drive pulley 313 is mounted and fixed on the fan clutch assembly 310 using a clutch fixing bolt 314. The length of the fan bracket fixing bolt 315 is greater than the sum of the thickness of the fan bracket 21 and the length of the fan bracket mounting foot 226. The fan bracket fixing bolt 315 fixes the fan bracket 21 to the engine assembly 1. The drive belt 316 simultaneously wraps around the idler pulley 38 and the pulley of the fan clutch assembly 310 in the opposite direction.

[0043] Solution Analysis:

[0044] 1. Reduced power consumption and improved fuel economy: Replacing the traditional large-diameter single fan with four small-diameter fans 35, the smaller-diameter fans 35 have higher airflow efficiency, resulting in 15%-20% less total power consumption compared to a single fan under the same cooling requirements. Furthermore, through the fan clutch assembly 310, which is linked to the engine load, power consumption is reduced during cold starts and low-load operation at low speeds, while high-speed heat dissipation is achieved under heavy loads, reducing engine power consumption, improving vehicle power and fuel economy, and solving the high energy consumption problem of a single fan.

[0045] 2. Reduced noise pollution and optimized driving experience: The small-diameter fan blades reduce the tip linear velocity to 51-55 m / s (compared to 98 m / s for traditional single fans), significantly reducing the noise from the blades cutting through the air. Simultaneously, the matrix layout combined with intelligent clutch control allows the fan to operate at low speeds under low loads, further reducing noise and addressing the issue of driver fatigue caused by high noise levels from single fans, thus improving driving comfort.

[0046] 3. Reduced maintenance costs and extended component lifespan: The four small fans 35 distribute the load, reducing the stress on the drive system (belts, bearings, etc.), slowing down the aging process, and reducing maintenance frequency. The fan bracket 31 optimizes the structure through weight-reducing grooves and reinforcing ribs, balancing strength and lightweight, reducing the risk of bracket deformation. From both structural design and load distribution perspectives, this addresses the high maintenance costs associated with premature aging of single-fan drive systems.

[0047] 4. Intelligent adaptation to operating conditions and precise heat dissipation and temperature control: The fan clutch assembly 310 intelligently engages / disengages according to the engine's heat dissipation requirements (coolant temperature), linking four fans at 35 speeds. Low power consumption ensures continued operation during cold starts / low loads, while strong heat dissipation protects the engine under heavy loads, achieving a dynamic balance between heat dissipation and energy consumption. This overcomes the limitations of traditional technologies that "optimize but do not fundamentally solve" problems, constructing a more intelligent and efficient heat dissipation system.

[0048] Technical effects of implementing this solution:

[0049] This solution achieves multi-dimensional technological breakthroughs through structural innovation and intelligent control: replacing a single large fan with four small-diameter fans, combined with intelligent clutch adaptation to different operating conditions, reduces power consumption and improves power and economy; reduces blade tip linear velocity and slows down under low load, reducing noise and optimizing the driving experience; distributes load and optimizes the bracket to reduce maintenance costs; intelligent on-demand heat dissipation and precise temperature control protect the engine, comprehensively solving the pain points of high energy consumption, high noise, and high maintenance costs of a single fan, and building a more efficient and intelligent heat dissipation system.

[0050] Working principle:

[0051] The matrix-type fans 35 are installed at the front end of the engine assembly 1. In operation, the four fans 35 are driven to rotate by the drive belt 316, drawing air from the radiator to enhance radiator cooling, and blowing air onto the engine assembly 1 to cool the engine.

[0052] The engine accessory belt-driven clutch drives pulley 313 to rotate the fan clutch assembly 310. The fan clutch assembly 310 drives four fan pulleys 34, which in turn drive the fan 35 to rotate, drawing air from the radiator and simultaneously supplying air to the engine to cool it.

[0053] Under different operating conditions, the fan clutch assembly 310 will engage and disengage according to the engine's cooling requirements, driving the four fans 35 to rotate at different speeds, thereby achieving different levels of cooling for the engine under different loads.

[0054] When the engine is cold-started or running under low load, the engine coolant is at a low temperature, and the air blown from the radiator onto the fan clutch assembly 310 is also at a low temperature. The fan clutch assembly 310 is disengaged and idles at a low speed, approximately 10%-30% of the engine speed. At this time, the fan clutch assembly 310 drives the four fans 35 to rotate at a low speed, reducing power loss and noise.

[0055] When the engine is operating under heavy load or has high cooling demand, the engine coolant is at a high temperature. The hot air from the radiator blows onto the fan clutch assembly 310. The high temperature causes the fan clutch assembly 310 to engage, which greatly increases the speed of the fan clutch assembly 310, approaching more than 90% of the engine speed. At this time, the fan clutch assembly 310 drives the four fans 35 to rotate at high speed. The four fans 35 rotate at high speed, which enhances the cooling effect.

[0056] When the engine coolant temperature decreases and the heat dissipation demand decreases, the temperature of the air blown by the radiator onto the fan clutch assembly 310 decreases, the fan clutch assembly 310 disengages, and the speed of the fan clutch assembly 310 decreases accordingly. At this time, the fan clutch assembly 310 drives the four fans 35 to rotate at a low speed, and the fans 35 return to a low load state.

[0057] This utility model comprises: 1-engine assembly; 2-assembly mechanism; 21-fan bracket; 22-assembly component; 221-idler wheel mounting seat; 222-idler wheel mounting hole; 223-fan clutch assembly mounting hole; 224-fan pulley mounting seat; 225-fan pulley fixing hole; 226-fan bracket mounting foot; 227-fan bracket mounting hole; 228-enclosing weight reduction groove; 229-side weight reduction groove; 2210-top weight reduction groove; 23-support component; 231-reinforcing rib one; 232-reinforcing rib two; 233-reinforcing rib three; 3-matrix mechanism; 31-pulley bearing; 32-pulley fixing plate; 33-pulley fixing bolt; 34-fan pulley; 35-fan; 36-fan mounting seat; 37-fan fixing bolt; 38-idler wheel; 39-Idler pulley fixing bolt; 310-Fan clutch assembly; 311-Front clutch bearing; 312-Rear clutch bearing; 313-Clutch drive pulley; 314-Clutch fixing bolt; 315-Fan bracket fixing bolt; 316-Drive belt. These components are all general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that current commercial vehicle engines with single fans suffer from high energy consumption (consuming 8%-15% of the engine's output power), high noise (exceeding 80 decibels under high load, affecting driving comfort), and high maintenance costs (the drive system is prone to premature aging and frequent maintenance). Existing technology upgrades cannot fundamentally solve these problems. This utility model improves fan cooling efficiency, reduces fan power consumption, improves overall vehicle economy, reduces fan noise, and reduces fan maintenance frequency and costs.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A matrix-type engine fan, characterized in that: It includes an engine assembly (1), an assembly mechanism (2) and a matrix mechanism (3), wherein the assembly mechanism (2) is disposed at the front end of the engine assembly (1) and the matrix mechanism (3) is disposed on the assembly mechanism (2); The assembly mechanism (2) includes a fan bracket (21), an assembly component (22), and a support component (23). The bottom of the fan bracket (21) has an arc-shaped structure, and the top has a W-shaped structure. The assembly component (22) and the support component (23) are both mounted on the fan bracket (21). The assembly component (22) includes an idler gear mounting seat (221), an idler gear mounting hole (222), a fan clutch assembly mounting hole (223), a fan pulley mounting seat (224), a fan pulley fixing hole (225), a fan bracket mounting foot (226), a fan bracket mounting hole (227), an enclosing weight reduction groove (228), a side weight reduction groove (229), and a top weight reduction groove (2210). The idler gear mounting seat (221) is located at the middle of the top front end of the fan bracket (21). The idler gear mounting hole (222) passes through the idler gear mounting seat (221) and the fan bracket (21). The fan clutch assembly mounting hole (223) is located in the middle of the fan bracket (21). The fan pulley mounting seat (224) is located at the four corners of the front end of the fan bracket (21). The fan pulley fixing hole (225) is provided through each fan pulley mounting seat (224) and the fan bracket (21). The fan bracket mounting feet (226) are evenly arranged at the rear end of the fan bracket (21). The fan bracket mounting hole (227) is provided through each fan bracket mounting foot (226) and the fan bracket (21). There are four enclosing weight reduction grooves (228) arranged in a circular structure around the fan clutch assembly mounting hole (223). The side weight reduction grooves (229) are arranged opposite to each other on the left and right sides inside the fan bracket (21). There are two top weight reduction grooves (2210) arranged opposite to each other on the top inside the fan bracket (21).

2. A matrix-type engine fan according to claim 1, characterized in that: The idler wheel mounting seat (221) has a stepped frustum structure, the fan clutch assembly mounting hole (223) has a circular structure, the fan pulley mounting seat (224) has a flat cylindrical structure, and the fan bracket mounting foot (226) has a long cylindrical structure. The number of fan bracket mounting feet (226) is equal to the number of fan pulley mounting seats (224). The four fan bracket mounting feet (226) are distributed in a rectangular structure. The idler wheel mounting seat (221), the fan pulley mounting seat (224), and the fan bracket mounting feet (226) are all integrally formed with the fan bracket (21) or the fan bracket mounting feet (226) are welded to the fan bracket (21).

3. A matrix-type engine fan according to claim 2, characterized in that: Each of the enclosing weight reduction grooves (228) has a fan-shaped structure. The top enclosing weight reduction groove (228) is divided into two by the fan bracket (21). The side weight reduction groove (229) has a rounded isosceles trapezoidal structure. The top weight reduction groove (2210) has an arc-shaped rectangular structure. The two top weight reduction grooves (2210) are respectively located on the outward extension line of the two top enclosing weight reduction grooves (228) and the fan clutch assembly mounting hole (223).

4. A matrix-type engine fan according to claim 3, characterized in that: The support assembly (23) includes a first reinforcing rib (231), a second reinforcing rib (232), and a third reinforcing rib (233). The first reinforcing rib (231) is disposed on the back of the fan bracket (21) and located on each of the fan bracket mounting feet (226). The second reinforcing rib (232) is disposed on the back of the fan bracket (21) and located between the fan clutch assembly mounting hole (223) and the idler wheel mounting hole (222). The third reinforcing rib (233) is disposed on the back of the fan bracket (21) and located at the outer end of each of the side weight reduction grooves (229).

5. A matrix-type engine fan according to claim 4, characterized in that: The first reinforcing rib (231) has a right-angled trapezoidal structure and its free tip is rounded. Each of the first reinforcing ribs (231) points to the adjacent fan pulley fixing hole (225) on the mounting foot (226). The second reinforcing rib (232) has a rounded cuboid structure and is located between the top weight-reducing groove (2210) which is divided into two at the top. The third reinforcing rib (233) has a rounded cuboid structure and its length is greater than the length of the side weight-reducing groove (229). The first reinforcing rib (231) is welded to the fan bracket mounting foot (226) and the fan bracket (21). The second reinforcing rib (232) and the third reinforcing rib (233) are both welded to the fan bracket (21).

6. A matrix-type engine fan according to claim 5, characterized in that: The matrix mechanism (3) includes a pulley bearing (31), a pulley fixing plate (32), a pulley fixing bolt (33), a fan pulley (34), a fan (35), a fan mounting base (36), a fan fixing bolt (37), an idler pulley (38), an idler pulley fixing bolt (39), a fan clutch assembly (310), a clutch front bearing (311), a clutch rear bearing (312), a clutch drive pulley (313), a clutch fixing bolt (314), a fan bracket fixing bolt (315), a clutch drive pulley (313), and a drive belt (316). The pulley bearing (31) is interference-fitted onto the periphery of each fan pulley mounting base (224), and the pulley fixing plate (32) is disposed on each of the fan pulley mounting bases (224). The inner ring of the pulley bearing (31) is located at the front end. The pulley fixing bolt (33) passes through the pulley fixing plate (32), the pulley bearing (31), and the fan pulley mounting seat (224). The fan pulley (34) is interference-fitted onto the periphery of each pulley bearing (31). The fan (35) is located at the front end of each fan pulley (34). The fan mounting seat (36) is located between the fan (35) and the fan pulley (34). The fan fixing bolt (37) is evenly distributed on each fan mounting seat (36). The idler wheel (38) is located on the idler wheel mounting seat (221). The idler wheel fixing bolt (39) passes through the idler wheel (38) and the idler wheel mounting seat (221).

7. A matrix-type engine fan according to claim 6, characterized in that: The circumference of the pulley fixing plate (32) is equal to the circumference of the inner ring of the pulley bearing (31). The fan fixing bolts (37) are distributed in a cross shape on the fan mounting base (36). The fan fixing bolts (37) pass through the fan mounting base (36) and the fan pulley (34) to fix the fan (35) on the fan pulley (34). The fan (35) and the fan mounting base (36) are integrally formed.

8. A matrix-type engine fan according to claim 7, characterized in that: The fan clutch assembly (310) is located at the front end of the fan clutch assembly mounting hole (223). The clutch front bearing (311) and clutch rear bearing (312) are respectively located at the front end and rear end of the fan clutch assembly mounting hole (223). The clutch drive pulley (313) is located at the rear end of the clutch rear bearing (312). The clutch fixing bolt (314) passes through the clutch drive pulley (313), clutch rear bearing (312) and clutch front bearing (311) and is located inside the fan clutch assembly (310). The fan bracket fixing bolt (315) passes through each of the fan bracket mounting holes (227). The drive belt (316) is arranged to wrap around each of the fan pulleys (34).

9. A matrix-type engine fan according to claim 8, characterized in that: The clutch drive pulley (313) is mounted and fixed on the fan clutch assembly (310) by a clutch fixing bolt (314). The length of the fan bracket fixing bolt (315) is greater than the sum of the thickness of the fan bracket (21) and the length of the fan bracket mounting foot (226). The fan bracket fixing bolt (315) fixes the fan bracket (21) on the engine assembly (1). The drive belt (316) simultaneously wraps around the idler pulley (38) and the pulley of the fan clutch assembly (310) in the opposite direction.

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