A ventilation and heat dissipation device

Abstract

The utility model relates to a kind of ventilation and heat dissipation device, including box and filter screen, there is inner cavity for accommodating to be dissipated heat component in box, air inlet and air outlet being communicated with inner cavity are equipped on box, filter screen is equipped at air inlet, filter screen can be blocked, positioning groove that filter screen can be releasably constrained on box is equipped on box;Positioning groove is U-shaped, including the vertical slot of the two sides in the horizontal direction of air inlet respectively and the horizontal slot below air inlet, vertical slot extends vertically, horizontal slot extends horizontally;Two sides of the vertical extension of filter screen can be slid upward to filter screen whole extrudes positioning groove along the vertical slot of corresponding side;Two sides of the vertical extension of filter screen can be slid downward to the bottom of filter screen is embedded in horizontal slot along the vertical slot of corresponding side, and in this state, filter screen is releasably connected with box by connecting member, connecting member is located above positioning groove.Filter screen is convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to a ventilation and heat dissipation device. Background Technology

[0002] Compared to traditional fuel vehicles where thermal management targets systems such as the engine, transmission, and air conditioning, thermal management of new energy vehicles adds thermal management targets such as the power battery and electric drive.

[0003] Thermal management plays a crucial role in addressing the heat generated by components in pure electric vehicles and energy storage systems (such as energy storage cabinets). This is especially true in situations requiring additional heating, rapid charging, and battery operation within a narrow temperature window. Maximizing charging power further drives the demand for precise thermal management. Effective thermal management can extend battery life and prevent risks such as thermal runaway, efficiency degradation, and even motor burnout. Effective thermal management requires a highly efficient heat exchange cycle structure (i.e., a heat exchanger) to ensure continuous and stable thermal management.

[0004] For example, the Chinese invention patent application CN202011525325.3 (publication number CN112582705A) discloses a ventilation and heat dissipation device for a new energy vehicle battery pack. This ventilation and heat dissipation device includes a housing for accommodating the battery pack and a cover that matches the housing. The housing and the cover form a battery pack accommodating cavity. The housing includes a bottom plate and a side plate, the bottom of which is fixed to the upper surface of the bottom plate. The bottom plate is provided with a downward-opening high-temperature air inlet, and the side plate is provided with a low-temperature air inlet. An air guide assembly is installed on the low-temperature air inlet. The cover is provided with an upward-opening exhaust port.

[0005] However, debris can easily enter the enclosure through the air inlet, and after prolonged use, lint can accumulate at the air inlet, affecting airflow and thus heat dissipation.

[0006] To address the aforementioned issues, Chinese utility model patent application number CN202323492425.2 (publication number CN222507717U) discloses a heat dissipation device for an automotive lithium battery. The outer side of the outer shell is fixedly connected to a protective shell, the outer side of the protective shell is provided with a dovetail groove, the outer side of the protective shell is movably connected to a second filter, the outer side of the second filter is movably connected to a dovetail block, and the dovetail block is movably connected to the dovetail groove.

[0007] In this patent, the second filter screen and the protective shell are assembled only through a dovetail block and a dovetail groove. However, vibrations will occur during the car's operation, and the second filter screen may move in the opposite direction of its insertion into the dovetail groove. This will cause the second filter screen and the protective shell to detach, resulting in the failure of the second filter screen's filtering effect. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide a ventilation and heat dissipation device with a detachable filter screen and good stability in the assembled state, in light of the current state of the technology.

[0009] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a ventilation and heat dissipation device, including a box and a filter screen. The box has an inner cavity for accommodating the component to be cooled. The box is provided with an air inlet and an air outlet that communicate with the inner cavity. The air inlet is provided with a filter screen that can block it. The box is provided with a positioning groove that can detachably constrain the filter screen on the box.

[0010] The feature is that the positioning groove is U-shaped, including vertical grooves located on both sides of the air inlet in the horizontal direction and a horizontal groove located below the air inlet, wherein the vertical groove extends vertically and the horizontal groove extends horizontally.

[0011] The two vertically extending sides of the filter screen can slide upward along the vertical grooves on the corresponding sides until the entire filter screen comes out of the positioning groove.

[0012] The two vertically extending sides of the filter can slide down along the vertical grooves on the corresponding sides to the bottom of the filter and be embedded in the horizontal groove. In this state, the filter can be detachably connected to the housing through a connector located above the positioning groove.

[0013] In the above scheme, the box body is provided with a U-shaped component. The two opposite side arms of the component are located on both sides of the horizontal direction of the air inlet. The two side arms and the side wall of the box body form the vertical groove. The bottom arm of the component is located below the air inlet. The bottom arm and the side wall of the box body form the horizontal groove.

[0014] In order to form a positioning groove between the component and the housing, the cross-section of the side arm and bottom arm of the component includes a connected first side and a second side. The first end of the first side is connected to the housing, and the second end extends away from the housing. The second side is bent from the second end of the first side toward the direction of the air inlet to form the second side. The component has a simple structure and forms a positioning groove as long as it is installed on the housing.

[0015] To prevent the filter screen from wobbling relative to the positioning groove, the first side is tilted away from the second end towards the first end, so that the angle between the first side and the second side is an obtuse angle. The bottom of the filter screen can abut against the first side. The tilted first side will squeeze the filter screen, reduce its wobbling, and improve the stability of the filter screen relative to the housing assembly.

[0016] In the above scheme, there are multiple air inlets, and air inlets are provided on at least two side walls of the housing.

[0017] In the above design, one of the air inlets is divided into two air intake units by the side wall of the housing. The part of the housing between the two air intake units is called the connecting part. The connecting part is partially recessed to form a countersunk hole, through which a screw is inserted. The head of the screw is adjacent to the filter screen, and the shank of the screw extends into the housing. A controller is located on the shank of the screw. When the filter screen is not deformed, the head of the screw is close to the filter screen and will not interfere with the up-and-down movement of the filter screen. When the filter screen is slightly deformed, the head of the screw can provide some support for the filter screen and prevent it from deforming drastically.

[0018] Preferably, the filter screen includes a frame and a mesh sheet disposed in the frame. The mesh sheet is wavy, has a large surface area, and provides good filtration effect.

[0019] In the above solution, there is a gap between the mesh and the box, and the gap is detachably filled with a sealing element to prevent debris from entering the box from the gap.

[0020] Preferably, the sealing element is a heating element capable of generating heat. In winter, the heating element operates to maintain a certain temperature inside the box, allowing the components inside the box to function normally.

[0021] Compared with the prior art, the advantages of this utility model are: This utility model is equipped with a positioning groove, and the filter screen is inserted into the positioning groove from top to bottom. The filter screen is pre-positioned first, and then the filter screen and the box are connected together with the connector. The operation is convenient, and the dual function of the positioning groove and the connector makes the filter screen and the box firmly connected together and will not loosen due to vehicle vibration.

[0022] When you need to remove the filter, simply remove the connector first, and then take out the filter from the bottom up. It's a convenient operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure from another direction;

[0025] Figure 3 for Figure 2 Enlarged view of point A;

[0026] Figure 4 for Figure 1 A sectional view;

[0027] Figure 5 for Figure 4 Enlarged view of point B;

[0028] Figure 6 for Figure 4 Enlarged view of point C;

[0029] Figure 7 for Figure 4 Enlarged view of point D;

[0030] Figure 8 This is a schematic diagram of the structure of the filter mesh and one side plate of the housing in Embodiment 2 of this utility model. Detailed Implementation

[0031] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be understood that, unless otherwise stated, "multiple" means two or more, and the terms "upper," "lower," "left," "right," "top," "bottom," "front," "rear," etc., indicate the orientation or positional relationship based on the direction or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an adhesive connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.

[0034] Example 1

[0035] like Figures 1-7 As shown, the ventilation and heat dissipation device of this preferred embodiment includes a housing 1 and a filter screen 2. The housing 1 has an inner cavity 11 for accommodating the component to be cooled. The housing 1 is provided with an air inlet 12 and an air outlet 13 that communicate with the inner cavity 11. A fan 3 is provided at the air outlet 13 for driving airflow from the air inlet 12 toward the air outlet 13. The fan 3 can adopt an existing structure.

[0036] like Figures 2-7As shown, a filter screen 2 is provided at the air inlet 12 to block it, and a positioning groove is provided on the housing 1 to detachably constrain the filter screen 2 on the housing 1. The positioning groove is U-shaped and includes vertical grooves 14 located on both sides of the air inlet 12 in the horizontal direction and a horizontal groove 15 located below the air inlet 12. The vertical grooves 14 extend vertically and the horizontal grooves 15 extend horizontally.

[0037] The two vertically extending sides of filter 2 can slide upward along the corresponding vertical grooves 14 until the entire filter 2 is dislodged from the positioning groove; the two vertically extending sides of filter 2 can slide downward along the corresponding vertical grooves 14 until the bottom of filter 2 is embedded in the horizontal groove 15, and in this state, filter 2 is detachably connected to housing 1 via connector 5, which is located above the positioning groove. Connector 5 can be a screw or a wing bolt.

[0038] The filter 2 includes a frame 21 and a mesh 22 disposed in the frame 21. Specifically, the frame 21 of the filter 2 is embedded in a positioning groove.

[0039] The housing 1 is provided with a U-shaped component 3. The two opposing side arms 31 of the component 3 are located on both sides of the air inlet 12 in the horizontal direction. The bottom arm 32 of the component 3 is located below the air inlet 12. The cross-section of the side arms 31 and the bottom arm 32 of the component 3 includes a connected first side 33 and a second side 34. The first end of the first side 33 is connected to the housing 1, and the second end extends away from the housing 1. The second side 33 is bent from the second end of the first side 33 toward the direction of the air inlet 12 to form the second side 34. The two side arms 31 and the side wall of the housing 1 form a vertical groove 14, and the bottom arm 32 and the side wall of the housing 1 form a horizontal groove 15.

[0040] To prevent the filter screen 2 from wobbling relative to the positioning groove, the first side 33 is tilted away from the second end towards the first end in a direction away from the second side 34, so that the angle between the first side 33 and the second side 34 is an obtuse angle. The bottom of the filter screen 2 can abut against the first side 33, which will squeeze the filter screen 2, reduce its wobbling, and improve the stability of the filter screen 2 relative to the housing 1. Otherwise, due to the loose assembly, noise and vibration will be generated during operation.

[0041] During assembly, filter screen 2 is inserted into the positioning groove from top to bottom to pre-position filter screen 2. Then, connector 5 is used to connect filter screen 2 and housing 1 together. The operation is convenient, and the dual function of positioning groove and connector 5 makes filter screen 2 and housing 1 firmly connected together and will not loosen due to vehicle vibration.

[0042] When it is necessary to disassemble filter screen 2, first remove connector 5, and then remove filter screen 2 from bottom to top. The operation is convenient.

[0043] There are multiple air inlets 12, with at least two side walls of the housing 1 having an air inlet 12. For example... Figure 4 As shown, one of the air inlets 12 is divided by the side wall of the housing 1 to form two air intake units 121. The part of the housing 1 between the two air intake units 121 is called the connecting part 16. The connecting part 16 is partially recessed to form a countersunk hole 17. A screw 4 is inserted into the countersunk hole 17. The head 41 of the screw 4 is adjacent to the filter screen 2. The shank 42 of the screw 4 extends into the housing 1. A controller is provided on the shank 42 of the screw 4. The controller is used to control whether certain components on the car work.

[0044] When the filter screen 2 is not deformed, the head 41 of the screw 4 is close to the filter screen 2 and will not interfere with the up-and-down movement of the filter screen 2. When the filter screen 2 is slightly deformed, the head 41 of the screw 4 can provide some support for the filter screen 2 and prevent it from deforming violently. It can be seen that the screw 4 has multiple uses.

[0045] After testing, the temperature of the air outlet 13 dropped from 13℃ to 9.7℃ before and after replacing or cleaning filter 2.

[0046] Example 2

[0047] like Figure 8 As shown, the difference between Example 2 and Example 1 is that the mesh structure of filter 2 is different.

[0048] The filter 2 includes a frame 21 and a mesh 22 disposed in the frame 21. The mesh 22 is wavy, has a large surface area, and has a good filtration effect.

[0049] A gap 23 exists between the mesh 22 and the housing 1. A sealing element is detachably filled into the gap 23 to prevent debris from entering the housing 1 through the gap 23. The sealing element can be directly inserted into or removed from the gap 23. The sealing element is a heat-generating component. In winter, the heating element operates, maintaining a certain temperature inside the housing 1, thus ensuring the normal operation of the components inside the housing 1. This is because some components in automobiles cannot function at low temperatures.

Claims

1. A ventilation and heat dissipation device, comprising a housing (1) and a filter (2), wherein the housing (1) has an inner cavity (11) for accommodating a component to be dissipated, the housing (1) is provided with an air inlet (12) and an air outlet (13) communicating with the inner cavity (11), the air inlet (12) is provided with a filter (2) that can block it, and the housing (1) is provided with a positioning groove that can detachably constrain the filter (2) on the housing (1); characterized in that The positioning groove is U-shaped and includes vertical grooves (14) located on both sides of the air inlet (12) in the horizontal direction and horizontal grooves (15) located below the air inlet (12). The vertical grooves (14) extend vertically and the horizontal grooves (15) extend horizontally. The two vertically extending sides of the filter (2) can slide upward along the vertical groove (14) on the corresponding side until the filter (2) is completely removed from the positioning groove; The two vertically extending sides of the filter (2) can slide down along the vertical groove (14) on the corresponding side to the bottom of the filter (2) and be embedded in the horizontal groove (15). In this state, the filter (2) can be detachably connected to the box (1) through the connector (5), which is located above the positioning groove.

2. The venting and heat dissipation device according to claim 1, wherein: The housing (1) is provided with a U-shaped component (3). The two opposing side arms (31) of the component (3) are located on both sides of the air inlet (12) in the horizontal direction. The two side arms (31) and the side wall of the housing (1) form the vertical groove (14). The bottom arm (32) of the component (3) is located below the air inlet (12). The bottom arm (32) and the side wall of the housing (1) form the horizontal groove (15).

3. The venting and heat dissipation device according to claim 2, characterized in that: The cross-section of the side arm (31) and bottom arm (32) of the component (3) includes a connected first side (33) and a second side (34). The first end of the first side (33) is connected to the box (1), and the second end extends away from the box (1). The second side (34) is formed by bending from the second end of the first side (33) toward the location of the air inlet (12).

4. The venting and heat dissipation device according to claim 3, characterized in that: The first side (33) is inclined from its second end toward the first end in a direction away from the second side (34), so that the angle between the first side (33) and the second side (34) is an obtuse angle, and the bottom of the filter (2) can abut against the first side (33).

5. The venting and heat dissipation device according to any one of claims 1 to 4, characterized in that: There are multiple air inlets (12), and air inlets (12) are provided on at least two side walls of the housing (1).

6. The venting and heat dissipation device according to claim 5, wherein: One of the air inlets (12) is divided by the side wall of the housing (1) to form two air inlet units (121). The part of the housing (1) between the two air inlet units (121) is called the connecting part (16). The connecting part (16) is partially recessed to form a countersunk hole (17). A screw (4) is inserted into the countersunk hole (17). The head (41) of the screw (4) is adjacent to the filter screen (2). The shank (4) of the screw (4) extends into the housing (1), and a controller is provided on the shank (42) of the screw (4).

7. The venting and heat dissipation device according to any one of claims 1 to 4, characterized in that: The filter (2) includes a frame and a mesh (22) disposed in the frame, the mesh (22) being wavy.

8. The venting and heat dissipation device according to claim 7, characterized in that: The mesh (22) and the box (1) have a gap (23) between them, and the gap (23) is filled with a blocking member which can be disassembled.

9. The venting and heat dissipation device according to claim 8, characterized in that: The blocking member is a heating member which can generate heat.

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