Heat dissipation structure of clutch housing

Abstract

The utility model relates to clutch casing technical field, and disclose a kind of heat dissipation structure of clutch casing, including clutch casing, the left and right two side walls of clutch casing are equipped with heat dissipation countersunk groove, the inside of heat dissipation countersunk groove is communicated with clutch casing, the inside of heat dissipation countersunk groove is equipped with circulating air bellow;The front side wall of circulating air bellow is equipped with circulating air port, the bottom end of circulating air bellow is equipped with exhaust port, and heat dissipation fan assembly is equipped in exhaust port;The heat dissipation countersunk groove of the left and right two side walls of this clutch casing is communicated with internal chamber, and integrated circulating air bellow in groove, form the two-way air flow circulation channel of "left side air intake-casing internal convection-right side air outlet".

Description

Technical Field

[0001] This utility model relates to the field of clutch housing technology, specifically a heat dissipation structure for a clutch housing. Background Technology

[0002] In automotive transmission systems and industrial machinery transmission devices, the clutch, as the core component for power engagement and disengagement, directly determines the operational stability and service life of the equipment. During the high-frequency engagement and disengagement process, the intense friction between the friction plates generates a large amount of heat. If this heat cannot be dissipated in time, the temperature inside the clutch housing will rise sharply. Existing clutch housings mostly adopt a single external wall heat dissipation fin design, relying solely on passive thermal radiation and natural convection for heat dissipation, resulting in extremely low heat dissipation efficiency. This is insufficient to meet the heat dissipation requirements of high-load, high-frequency operating conditions (such as frequent starts in commercial vehicles and continuous operation of construction machinery). Although some improvement solutions have added cooling fans, the assembly structure of the fan and housing is complex and lacks effective dustproof design. External dust and impurities can easily enter the housing through the heat dissipation channels, adhering to the surfaces of the friction plates and moving parts, further aggravating wear and clogging the heat dissipation channels, forming a vicious cycle of "heat dissipation failure - component wear." Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0003] The purpose of this invention is to provide a heat dissipation structure for a clutch housing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation structure for a clutch housing, comprising a clutch housing, wherein heat dissipation countersunk grooves are fitted on both the left and right side walls of the clutch housing, the heat dissipation countersunk grooves are connected to the interior of the clutch housing, and a circulating air box is fitted inside the heat dissipation countersunk grooves; a circulating air inlet is provided on the front side wall of the circulating air box, and an exhaust outlet is provided at the bottom end of the circulating air box; a cooling fan assembly is fitted inside the exhaust outlet, and a filter screen is embedded inside the exhaust outlet at the front end of the cooling fan assembly; an embedding groove is provided on both inner walls of the exhaust outlet, and an embedding block is installed on both outer walls of the filter screen; the embedding block is embedded in the embedding groove, and a snap-fit ​​mechanism is fitted between the embedding block and the embedding groove.

[0005] Preferably, the locking mechanism includes a limiting hole formed in the inner wall of the mounting groove and a locking rod installed on the side wall of the mounting block, wherein the locking rod is locked inside the limiting hole.

[0006] Preferably, the end face of the insert block is provided with a storage groove, and one end of the lever is installed in the storage groove, while the other end of the lever is provided with a rounded corner.

[0007] Preferably, the cooling fan assembly includes a fan frame installed inside the exhaust vent, a central seat is assembled in the middle section of the fan frame, blades are assembled around the central seat, and reinforcing ribs are installed at the end edges of the blades.

[0008] Preferably, one end of the reinforcing rib is provided with a protrusion a, and the other end of the reinforcing rib is provided with a protrusion b. The protrusions a and b are arranged from low to high, and the protrusion a extends beyond the end edge of the blade.

[0009] Preferably, the beginning of the leaf body is chamfered, and the leaf body is inclined.

[0010] Preferably, the outer wall of the clutch housing is provided with a heat dissipation window, the top of the clutch housing is fitted with a clutch end cover, the bottom of the clutch housing is fitted with a clutch base, and the bottom of the clutch base is fitted with a clutch mounting seat.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] The countersunk heat dissipation grooves fitted on the left and right side walls of the clutch housing are connected to the internal chamber, and the grooves integrate circulating air boxes, forming a two-way airflow circulation channel of "air intake on the left side - convection inside the housing - air exhaust on the right side". The circulating air vent at the front end of the circulating air box can guide the outside cold air into the housing precisely, while the cooling fan assembly at the bottom exhaust vent actively accelerates the airflow, quickly expelling the hot air inside the housing. Compared with traditional passive cooling, the heat dissipation efficiency is improved by more than 40%, effectively suppressing the thermal decay of the friction plates and ensuring stable power transmission. Attached Figure Description

[0013] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0014] Figure 2 This is a top-view three-dimensional structural schematic diagram of the present invention;

[0015] Figure 3 A schematic diagram of the exhaust vent provided by this utility model;

[0016] Figure 4 A schematic diagram of the cooling fan assembly provided by this utility model.

[0017] In the diagram: 1. Clutch housing; 2. Clutch end cover; 3. Circulating air vent; 4. Circulating air box; 5. Heat dissipation countersunk groove; 6. Heat dissipation window; 7. Clutch base; 8. Exhaust vent; 9. Clutch mounting seat; 10. Insert groove; 11. Insert block; 12. Cooling fan assembly; 121. Center seat; 122. Blade; 123. Protrusion a; 124. Reinforcing rib; 125. Protrusion b; 126. Chamfer; 127. Fan bracket; 13. Limiting hole; 14. Locking rod; 15. Rounded corner; 16. Filter screen. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-4 As shown, a heat dissipation structure for a clutch housing includes a clutch housing 1. The left and right side walls of the clutch housing 1 are fitted with heat dissipation countersunk grooves 5, which are connected to the interior of the clutch housing 1. A circulating air box 4 is installed inside the heat dissipation countersunk grooves 5. A circulating air inlet 3 is opened on the front side wall of the circulating air box 4, and an exhaust outlet 8 is opened at the bottom end of the circulating air box 4. A cooling fan assembly 12 is installed inside the exhaust outlet 8. A filter screen plate 16 is embedded inside the exhaust outlet 8 at the front end of the cooling fan assembly 12. Embedding grooves 10 are opened on both sides of the inner wall of the exhaust outlet 8. Embedding blocks 11 are installed on both sides of the outer wall of the filter screen plate 16. The embedding blocks 11 are embedded in the embedding grooves 10, and a snap-fit ​​mechanism is installed between the embedding blocks 11 and the embedding grooves 10.

[0020] In the specific implementation process, the clutch housing 1 is the mounting carrier for all components. The heat dissipation countersunk groove 5 is assembled to the left and right side walls of the housing by welding, and the groove is connected to the inner cavity of the housing, providing installation space for the circulating air box 4. The circulating air box 4 is embedded in the heat dissipation countersunk groove 5, and the two are sealed with sealant to prevent airflow from leaking from the gap between the groove and the air box, ensuring that the airflow flows accurately through the channel of the circulating air box 4. The circulating air outlet 3 is opened on the front side wall of the circulating air box 4, serving as the inlet for outside cold air to enter the air box. The exhaust outlet 8 is opened at the bottom of the circulating air box 4, serving as the outlet for high-temperature air to be discharged from the housing. The filter screen 16 is located at the front end of the cooling fan assembly 12, and is positioned by the cooperation of the mounting block 11 and the mounting groove 10, ensuring that the airflow is filtered first and then accelerated by the fan before being discharged.

[0021] In some technical solutions, the locking mechanism includes a limiting hole 13 opened in the inner wall of the mounting groove 10 and a locking rod 14 installed on the side wall of the mounting block 11, with the locking rod 14 locking inside the limiting hole 13.

[0022] In the specific implementation process, the limiting hole 13 is opened in the inner wall of the mounting groove 10 and must correspond one-to-one with the position of the locking rod 14. The diameter of the hole must be larger than the diameter of the locking rod 14 to ensure that the locking rod 14 can be smoothly inserted and does not loosen. The locking rod 14 is fixedly installed on the side wall of the mounting block 11. During installation, the mounting block 11 of the filter screen plate 16 must first be aligned with the mounting groove 10 and inserted. At this time, the locking rod 14 is deformed by the pressure of the inner wall of the mounting groove 10. When the mounting block 11 is inserted until the locking rod 14 is aligned with the limiting hole 13, the locking rod 14 springs into the limiting hole 13 under its own elasticity, thus locking the filter screen plate 16. During disassembly, simply press the locking rod 14 towards the mounting block 11 to disengage it from the limiting hole 13, and the filter screen plate 16 can be pulled out.

[0023] In some technical solutions, the end face of the mounting block 11 is provided with a storage groove, and one end of the locking rod 14 is installed in the storage groove, while the other end of the locking rod 14 is provided with a rounded corner 15.

[0024] In the specific implementation process, the storage slot is opened on the end face of the insert block 11 and faces the inner wall of the insert slot 10. The size of the slot needs to match the locking rod 14 to ensure that the locking rod 14 can deform freely in the slot. One end of the locking rod 14 is fixed to the bottom of the storage slot by injection molding. During assembly, the rounded corner 15 end of the locking rod 14 first contacts the inner wall of the insert slot 10. The rounded corner 15 structure converts sliding friction into rolling friction, reducing the resistance when the insert block 11 is inserted, and at the same time preventing the sharp corner of the locking rod 14 from scratching the inner wall of the insert slot 10. When the locking rod 14 is aligned with the limiting hole 13, the locking rod 14 pops out from the storage slot under the action of elasticity and locks into the limiting hole 13.

[0025] In some technical solutions, the cooling fan assembly 12 includes a fan bracket 127 installed in the exhaust port 8. A center seat 121 is installed in the middle section of the fan bracket 127. Blades 122 are installed around the center seat 121. A reinforcing rib 124 is installed at the end edge of the blade 122. A protrusion a123 is provided at one end of the reinforcing rib 124, and a protrusion b125 is provided at the other end of the reinforcing rib 124. The protrusions a123 and b125 are arranged from low to high. The protrusion a123 extends beyond the end edge of the blade 122. A chamfer 126 is provided at the beginning of the blade 122, and the blade 122 is inclined.

[0026] In practical implementation, the fan frame 127 serves as a fixed support for the fan assembly, ensuring that the fan does not shift during operation. It also provides rotational support for the center seat 121, reducing the transmission of motor vibration to the housing. The frame can be designed as a mesh structure, ensuring structural strength without obstructing airflow. The center seat 121, as the connecting component between the blade 122 and the motor, transmits the motor's rotational power to the blade 122. Simultaneously, a temperature sensor can be integrated inside the center seat 121 to monitor the housing temperature in real time and control the motor speed. The blade 122 generates negative pressure through rotation, drawing high-temperature air from the housing into the exhaust port 8 and then accelerating its discharge to the outside. The tilt angle of blade 122 needs to be optimized through fluid dynamics simulation to ensure maximum airflow at the same rotational speed. The reinforcing rib 124 addresses the deformation problem at the blade tip due to excessive centrifugal force during high-speed rotation, preventing deformation from affecting airflow or causing abnormal noise, and extending the lifespan of blade 122. The optimized structural design of the reinforcing rib 124, through the sloping structure of the "low-high" protrusions a123 and b125 and the design extending beyond the edge of blade 122, enhances the strength of blade 122 while further optimizing airflow guidance, preventing vortices at the blade tip and improving heat dissipation efficiency. The height of the reinforcing rib 124's protrusions needs to gradually transition to avoid sudden protrusions that could cause airflow turbulence. The detailed optimized design of blade 122 includes a chamfer 126 primarily addressing resistance when airflow enters blade 122, while the tilted design determines the airflow direction and volume; both work together to improve the fan's aerodynamic performance.

[0027] In some technical solutions, the outer wall of the clutch housing 1 is provided with a heat dissipation window 6, the top of the clutch housing 1 is equipped with a clutch end cover 2, the bottom of the clutch housing 1 is equipped with a clutch base 7, and the bottom of the clutch base 7 is equipped with a clutch mounting seat 9.

[0028] In the specific implementation process, the heat dissipation window 6 achieves natural air convection inside and outside the housing through the louver structure, assisting the core heat dissipation components in dissipating heat. Especially when the fan is not working, passive heat dissipation can maintain the temperature stability inside the housing. The clutch end cover 2, as a sealing component at the top of the housing, protects the clutch assembly inside the housing from external rain and dust corrosion, while facilitating the disassembly and maintenance of the internal components of the housing. The clutch base 7, as a connecting transition component between the housing and the mounting base, improves the overall support strength of the housing, disperses the vibration generated during clutch operation, and prevents the housing from deforming due to vibration. The clutch mounting base 9, through the adjustable design of the oblong hole, enables the clutch to be adapted to different models of automobiles or industrial equipment, thus forming the clutch housing in the prior art.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for a clutch housing, comprising a clutch housing (1), characterized in that, The left and right side walls of the clutch housing (1) are equipped with heat dissipation countersunk grooves (5), which are connected to the interior of the clutch housing (1). A circulating air box (4) is installed inside the heat dissipation countersunk grooves (5). The circulating air box (4) has a circulating air inlet (3) on its front side wall and an exhaust air outlet (8) at its bottom. A cooling fan assembly (12) is installed inside the exhaust air outlet (8). A filter screen plate (16) is embedded inside the exhaust air outlet (8) at the front end of the cooling fan assembly (12). An insert groove (10) is provided on both sides of the inner wall of the exhaust air outlet (8). An insert block (11) is installed on both sides of the outer wall of the filter screen plate (16). The insert block (11) is embedded in the insert groove (10). A snap-fit ​​mechanism is installed between the insert block (11) and the insert groove (10).

2. The heat dissipation structure for a clutch housing according to claim 1, characterized in that, The locking mechanism includes a limiting hole (13) opened in the inner wall of the insert groove (10) and a locking rod (14) installed on the side wall of the insert block (11), wherein the locking rod (14) is locked inside the limiting hole (13).

3. The heat dissipation structure for a clutch housing according to claim 2, characterized in that, The end face of the mounting block (11) is provided with a storage groove, and one end of the locking rod (14) is installed in the storage groove, and the other end of the locking rod (14) is provided with a rounded corner (15).

4. The heat dissipation structure for a clutch housing according to claim 1, characterized in that, The cooling fan assembly (12) includes a fan frame (127) installed in the exhaust port (8). A center seat (121) is installed in the middle section of the fan frame (127). Blades (122) are installed around the center seat (121). A reinforcing rib (124) is installed at the end edge of the blade (122).

5. The heat dissipation structure for a clutch housing according to claim 4, characterized in that, One end of the reinforcing rib (124) is provided with a protrusion a (123), and the other end of the reinforcing rib (124) is provided with a protrusion b (125). The protrusions a (123) and b (125) are arranged from low to high, and the protrusion a (123) extends beyond the end edge of the blade (122).

6. The heat dissipation structure for a clutch housing according to claim 5, characterized in that, The blade (122) has a chamfer (126) at the beginning and the blade (122) is inclined.

7. The heat dissipation structure for a clutch housing according to claim 1, characterized in that, The outer wall of the clutch housing (1) is provided with a heat dissipation window (6), the top of the clutch housing (1) is equipped with a clutch end cover (2), the bottom of the clutch housing (1) is equipped with a clutch base (7), and the bottom of the clutch base (7) is equipped with a clutch mounting seat (9).

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