Crankcase cover facilitating heat dissipation

Abstract

The utility model relates to the technical field of crankcase covers, in particular to a crankcase cover facilitating heat dissipation. The crankcase cover comprises a crankcase cover body, cooling fins and an airflow guide chamber, the crankcase cover body comprises a front face matched with a crankcase and a back face away from the crankcase, the multiple cooling fins are installed on the back face of the crankcase body at intervals, and an air channel is formed between every two adjacent cooling fins. The air flow guiding chamber is provided with an air inlet formed in a flaring mode and an air outlet formed in a closing mode, the air outlet is communicated with the air channel, heat of the crankcase cover body can be rapidly guided out by arranging the heat dissipation fins, the heat dissipation fins are rapidly dissipated in cooperation with the air flow guiding chamber, and heat dissipation of the crankcase cover body is achieved. In addition, relative movement of the vehicle and the airflow during running is used as a power source, so that the vehicle-mounted air conditioner is more environment-friendly, and the later maintenance cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of crankcase covers, in particular to a crankcase cover which is convenient for heat dissipation. Background Art

[0002] The engine crankcase is equipped with moving parts such as crank-connecting rod mechanism and transmission gears. Each moving part will generate heat during movement. Since the crankcase is a relatively closed space, if the dissipated heat cannot be discharged in time, the temperature inside the crankcase will rise sharply, affecting the reliability and durability of the engine.

[0003] A Chinese patent with authorization announcement number CN216157779U discloses a left crankcase cover with good heat dissipation effect, including a cover body, a cooling plate is installed on the surface of the cover body, the bottom of the cooling plate is a flexible heat-conducting structure, and the flexible heat-conducting structure is tightly attached to the surface of the cover body; the cover body includes a front cover end, and a refrigeration box for providing coolant to the cooling plate is installed on the surrounding side of the cover body, and the refrigeration box is a C-shaped structure, and gaps are provided between its two ends and the front cover end; the cooling plate is connected to the refrigeration box, and the surfaces of the cooling plate and the refrigeration box are both provided with reflective sheets.

[0004] A Chinese patent with authorization announcement number CN202970941U discloses a left crankcase cover for a water-cooled motorcycle, which has a cover body, one end of which is closed and the other end is open. A straight through hole is opened at the closed end of the cover body, and the center line of the through hole is perpendicular to the end face of the open end of the cover body. The through hole is sequentially arranged from the outside to the inside, including a water pump impeller mounting hole, a water seal mounting hole, an oil seal mounting hole and a water pump bearing mounting hole group.

[0005] Both of the above solutions use liquid cooling to cool the crankcase cover. Although the heat dissipation effect can be guaranteed by using liquid cooling, an external power source is also required to circulate the liquid to achieve refrigeration. This method increases energy consumption and has a high maintenance cost when damage occurs. Based on the deficiencies of the above two existing technologies, it is necessary to design a crankcase cover that is easy to dissipate heat to solve the above problems. Utility Model Content

[0006] The utility model provides a crankcase cover which is convenient for heat dissipation, so as to solve the problem in the prior art that the crankcase cover needs to be connected to an external power source for heat dissipation, which increases energy consumption and has high maintenance cost.

[0007] The technical problem solved by the utility model is achieved by the following technical solutions:

[0008] A crankcase cover for facilitating heat dissipation, comprising:

[0009] A crankcase cover body, the crankcase cover body comprising a front face matched with the crankcase and a back face away from the crankcase;

[0010] There are multiple cooling fins, and the multiple cooling fins are installed at intervals on the back of the crankcase body, and an air duct is formed between two adjacent cooling fins;

[0011] The airflow guiding chamber has an air inlet with an expanded opening and an air outlet with a closed opening, and the air outlet is communicated with the air duct.

[0012] Preferably, the airflow guide chamber is defined by a cover plate having three side walls and the back of the crankcase cover body, and the cover plate covers one end of the upper surface of the crankcase cover body facing the airflow direction.

[0013] Preferably, the airflow guide chamber is defined by a cylinder having four side walls, and the cylinder is arranged at the end of the crankcase cover body facing the airflow direction.

[0014] Preferably, the airflow guide chamber is defined by a plate body with an arc-shaped curved surface, the back of the crankcase cover body and cooling fins. The plate body is fixedly connected to a plurality of cooling fins, and the plate body is located at one end above the crankcase cover body facing the airflow direction.

[0015] Preferably, the front side of the crankcase cover body has a main area with higher heat and a secondary area with lower heat, and the airflow guide chamber is arranged on the back side of the main area of ​​the crankcase cover body.

[0016] Preferably, a wing plate is provided on the upper surface of the heat dissipation fin near the air outlet, and the wing plate is used to block the upper part of the air duct.

[0017] The beneficial effect of the utility model is that the heat of the crankcase cover body can be quickly dissipated by arranging the cooling fins, and the airflow guide chamber can quickly dissipate the heat of the cooling fins to achieve the heat dissipation of the crankcase cover body. Compared with the prior art, which requires an external power source to maintain operation during heat dissipation, the utility model uses the relative movement of the vehicle with the airflow when driving as the power source, which is more environmentally friendly and has lower later maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1This is a three-dimensional structural schematic diagram of the back side of the crankcase cover body of the utility model:

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the front side of the crankcase cover body of the utility model:

[0021] Figure 3 This is a schematic diagram of the structure of adding heat dissipation fins to the back of the crankcase cover body of the utility model:

[0022] Figure 4 It is a structural schematic diagram of the first embodiment of the utility model;

[0023] Figure 5 For this utility model Figure 4 Schematic diagram of cross-section plane;

[0024] Figure 6 For this utility model Figure 4 A schematic diagram of a three-dimensional structure in cross-section;

[0025] Figure 7 This is a schematic structural diagram of the second embodiment of the utility model;

[0026] Figure 8 This is a schematic structural diagram of the third embodiment of the utility model;

[0027] Fig. 9 This is a cross-sectional structural diagram of a fifth embodiment of the utility model;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the fifth embodiment of the utility model.

[0029] In the figure, 1, crankcase cover body; 2, main area; 3, auxiliary area; 4, cooling fins; 5, air duct; 6, wing plate; 7, air flow guide chamber; 8, air inlet; 9, air outlet; 10, cover plate; 1001, inclined wall; 1002, vertical wall; 11, cylinder; 12, plate body. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0031] refer to Figure 1 and Figure 2, is a schematic structural diagram of the existing crankcase cover body 1 of the present invention. The front side of the crankcase cover body 1 can be connected to the crankcase (not shown in the figure) so that the crankcase forms a closed space to ensure the normal operation of the crankcase. After the crankcase cover body 1 is connected to the crankcase, the crankshaft (not shown in the figure) inside the crankcase is connected to the main area 2 on the front side of the crankcase cover body 1, and other accessories inside the crankcase are connected to the auxiliary area 3 on the front side of the crankcase cover body 1. The above are all descriptions of the prior art of the present invention and will not be further elaborated here. When the crankcase cover body 1 is connected to the crankcase, the heat inside the crankcase will be transferred to the crankcase cover. If the heat dissipation of the crankcase cover is slow, it will affect the normal operation of the crankcase as a whole.

[0032] In order to increase the heat dissipation effect of the crankcase cover, the utility model is implemented in the following manner: first, a heat dissipation fin 4 is arranged on the back of the crankcase cover body 1 to increase the heat dissipation effect of the crankcase cover body 1. The heat dissipation fin 4 can increase the contact area with the air, thereby increasing the heat dissipation effect. The heat dissipation of the heat dissipation fin 4 is a traditional heat dissipation means, and it is difficult for the external air to flow quickly between the air ducts 5 formed by two adjacent heat dissipation fins 4. Therefore, in order to further increase the heat dissipation effect of the crankcase cover body 1, as shown in FIG. Figure 4-Figure 10 As shown, the utility model assists the heat dissipation fins 4 to dissipate heat quickly by adding an airflow guide chamber 7. The airflow guide chamber 7 has the effect of enabling the airflow (the airflow direction is based on the A1 direction in the accompanying drawings, and the airflow direction of the utility model is based on the auxiliary area 3 pointing to the main area 2 of the crankcase cover body 1 as an example, and the direction is also the direction from the air inlet 8 of the airflow guide chamber 7 to the exhaust port 9) to flow quickly inside the air duct 5 formed by two adjacent heat dissipation fins 4, thereby increasing the heat dissipation speed of the heat dissipation fins 4. Specifically, when the vehicle is running, the crankcase cover body 1 moves synchronously with the vehicle, so that the crankshaft The airflow guide chamber 7 on the box cover body 1 generates relative movement with the surrounding air, and the airflow guide chamber 7 has an air inlet 8 with an expanded opening facing the direction of the airflow and an air outlet 9 with a closed opening away from the direction of the airflow. When the vehicle is driving, the air inlet 8 with the expanded opening can guide more airflow into the interior of the airflow guide chamber 7, and then discharge the airflow into the interior of the air duct 5 through the air outlet 9 with a closed opening, so that the airflow is more concentratedly guided to the interior of the air duct 5. The movement of the airflow from the expanded opening to the closed opening can also accelerate the airflow, further ensuring the heat dissipation effect of the heat dissipation fins 4.

[0033] Based on the implementation of the above technical solution, the utility model proposes a first embodiment, referring to Figure 4 , Figure 5 and Figure 6 As shown, in the first embodiment of the present utility model, the air flow guide chamber 7 is defined by a cover plate 10 having three side walls and the back of the crankcase cover body 1. Figure 4 As shown, the cover plate 10 includes two vertical walls 1002 attached to the side walls of the crankcase cover body 1 and an inclined wall 1001 at the top of the two vertical walls 1002. The cover plate 10 covers the end of the upper surface of the crankcase cover body 1 that faces the airflow direction. In the specific working process, A1 in the figure is the direction of the airflow, and the airflow direction points to the air inlet 8 of the airflow guide chamber 7. Figure 5 and Figure 6 As shown, after being guided by the airflow guide chamber 7 , the air is accelerated from the exhaust port 9 of the airflow guide chamber 7 into the interior of the air duct 5 , thereby achieving rapid heat dissipation of the heat dissipation fins 4 .

[0034] Further, such as Figure 7 As shown, in order to form an air flow guide chamber 7 to accelerate the heat dissipation of the cooling fins 4, and the air flow guide chamber 7 has an air inlet 8 with an expanded opening and an air outlet 9 with a closed opening, the utility model proposes a second embodiment. In the second embodiment, the air flow guide chamber 7 is surrounded and defined by a cylinder 11 with four side walls, one end of the cylinder 11 is the air inlet 8 with an expanded opening, and the other end is the air outlet 9 with a closed opening, the air outlet 9 is connected to the air duct 5, and the cylinder 11 is installed at the end of the crankcase cover body 1 facing the air flow direction, and its specific working process is similar to that of the first embodiment of the utility model, which will not be elaborated here.

[0035] Further, such as Figure 8 As shown, combining the first embodiment and the second embodiment of the utility model, it is easy to think of the third embodiment of the utility model. In the third embodiment, the airflow guide chamber 7 is defined by the plate body 12, the heat dissipation fins 4 and the back of the crankcase cover body 1. The plate body 12 is an arc-shaped curved surface structure. The opening of the plate body of the arc-shaped curved surface structure faces opposite to the airflow direction to form an air inlet 8. The bottom of the plate body of the arc-shaped curved surface structure is attached to the upper surface of multiple heat dissipation fins 4. At this time, the air duct 5 covered by the plate body is the exhaust port 9 of the airflow guide chamber, thereby also forming an airflow guide chamber 7.

[0036] In combination with the above three embodiments, more air can be introduced into the interior of the air duct 5 through an air flow guide chamber 7 with an expanded air inlet 8, and the air flow guide chamber 7 also has an exhaust port 9 with a closed end to accelerate the air flow and ensure the cooling effect of the air flow on the heat dissipation fins 4. However, in the above three embodiments, the air flow guide chamber 7 is arranged at one end of the crankcase cover body 1 close to the air flow direction, resulting in a better heat dissipation effect at a position close to the air flow guide chamber 7, while a poor heat dissipation effect at a position far from the air flow guide chamber 7. The main reason is that the air flow inside the air duct 5 will expand and dissipate along the top of the air duct 5 after absorbing the heat from the heat dissipation fins 4. At the same time, after the air flow absorbs heat inside the air duct 5, the subsequent heat exchange effect with the heat dissipation fins 4 becomes worse and worse. Therefore, the utility model can optimize the above embodiments as follows.

[0037] Furthermore, in order to ensure that the airflow can run a longer distance inside the air duct 5, a wing plate 6 can be provided at the output end of the exhaust seal to be attached to the upper surface of the plurality of heat sink fins 4 to seal the upper part of the air duct 5, thereby increasing the running distance of the airflow inside the air duct 5. Figure 7 and Figure 8 As shown, taking the example of adding a wing plate 6 to the second and third embodiments, the upper part of the air duct 5 is closed by the wing plate 6, which can reduce the escape of airflow. The structure of adding the wing plate 6 is the fourth embodiment of the utility model.

[0038] Furthermore, considering that the heat of the crankcase cover body 1 is different at different positions, for example, the position of the conventional crankcase cover body 1 close to the main area 2 is in contact with the crankshaft inside the crankcase, so its heat is higher, while the position close to the auxiliary area 3 on the crankcase is far away from the crankshaft inside the crankcase, so its heat is lower, so the airflow guide chamber 7 is arranged at the back of the main area 2 of the crankcase to increase the heat dissipation effect at the main area 2 position, and the auxiliary area 3 has less heat, so the conventional heat dissipation fins 4 are used for heat dissipation. Combining the above embodiments, it is easy to think of the fifth embodiment of the utility model, such as Fig. 9 and Fig.10 As shown, an implementation of the fifth embodiment is formed based on the improvement of the third embodiment, in which an arc-shaped curved plate 12 is arranged on the back of the main area 2 of the crankcase to achieve enhanced heat dissipation of the main area 2.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A crankcase cover for heat dissipation, characterized in that: include; A crankcase cover body (1), the crankcase cover body (1) comprising a front face cooperating with the crankcase and a back face away from the crankcase; Heat dissipation fins (4), wherein there are a plurality of heat dissipation fins (4), and the plurality of heat dissipation fins (4) are installed at intervals on the back of the crankcase body, and an air duct (5) is formed between two adjacent heat dissipation fins (4); An airflow guide chamber (7), wherein the airflow guide chamber (7) has an air inlet (8) with an expanded opening and an air outlet (9) with a closed opening, and the air outlet (9) is communicated with the air duct (5).

2. A crankcase cover for heat dissipation according to claim 1, characterized in that: The airflow guide chamber (7) is defined by a cover plate (10) having three side walls and the back of the crankcase cover body (1), and the cover plate (10) covers the end of the upper surface of the crankcase cover body (1) facing the airflow direction.

3. A crankcase cover for heat dissipation according to claim 1, characterized in that: The airflow guide chamber (7) is defined by a cylinder (11) having four side walls, and the cylinder (11) is arranged at the end of the crankcase cover body (1) facing the airflow direction.

4. A crankcase cover for facilitating heat dissipation according to claim 1, characterized in that: The airflow guide chamber (7) is defined by a plate body (12) with an arc-shaped curved surface, the back of the crankcase cover body (1) and the heat dissipation fins (4); the plate body (12) is fixedly connected to a plurality of heat dissipation fins (4); and the plate body (12) is located at one end above the crankcase cover body (1) facing the airflow direction.

5. The crankcase cover for facilitating heat dissipation according to claim 1, characterized in that: The front side of the crankcase cover body (1) comprises a main area (2) with higher heat content and a secondary area (3) with lower heat content, and the airflow guide chamber (7) is arranged on the back side of the main area (2) of the crankcase cover body (1).

6. A crankcase cover for facilitating heat dissipation according to claim 1, characterized in that: A wing plate (6) is provided on the upper surface of the heat dissipation fin (4) near the air outlet (9), and the wing plate (6) is used to block the upper part of the air duct (5).

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