Air guide box for defroster, defroster assembly and vehicle

Abstract

The utility model provides an air guide box for a defroster, a defroster assembly and a vehicle, and belongs to the technical field of vehicles. The air guide box for the defroster comprises a box body, one end of the box body is provided with a windward opening which is arranged forwards to directly face an air inlet in the front wall of a vehicle, the other end of the box body is provided with an air outlet which is arranged upwards to be in butt joint with an outer air inlet in the bottom face of the defroster, and an air guide cavity used for guiding external airflow from the windward opening to the air outlet is formed in the box body. The box body is further provided with an installation structure used for fixedly installing the box body on a defroster or a vehicle body. When a vehicle runs, outside air can directly enter the box body through the air inlet in the front wall and the windward opening in the box body, then is exhausted from the air outlet under the guide of the air guide cavity, enters the outer air inlet in the bottom face of the defroster and then enters the defroster, it is guaranteed that the defroster can obtain sufficient air inlet amount, and the defroster is prevented from being damaged. And the defrosting effect is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a defroster air guide box, defroster assembly and vehicle belong to vehicle technical field. BACKGROUND

[0002] The defroster of the passenger car is a device for defrosting and defogging the front windshield of the car, which is generally arranged in a semi-closed area under the instrument panel of the passenger car. For example, the passenger car front wall multipurpose guard plate disclosed in the Chinese utility model patent with the authorization announcement number CN204037682U includes a front wall guard plate, the front wall guard plate has an opening communicating with the defroster, an inner cover plate is arranged on the inner side of the opening, a maintenance cover plate is arranged at the opening, the upper end of the maintenance cover plate is bent rearward to form an air inlet slot, the air inlet slot and the front wall guard plate form an air inlet, and the maintenance cover plate and the inner cover plate form an air inlet duct communicating with the air inlet and the defroster air inlet window. During the driving of the vehicle, fresh air from the outside enters the air inlet duct through the air inlet, and then enters the defroster air inlet through the defroster air inlet window, and further enters the inside of the defroster.

[0003] The specific structure of the defroster can refer to the cold and warm defrosting system and vehicle disclosed in the Chinese invention patent application with the application publication number CN116788202A, wherein the cold and warm defrosting system includes a cold and warm defroster, the cold and warm defroster has an indoor air inlet and an outdoor air inlet, the indoor air inlet is located at the rear side of the cold and warm defroster and communicates with the vehicle cabin, and is used for drawing air from the vehicle cabin, and the outdoor air inlet is located at the bottom surface of the cold and warm defroster and communicates with the outside of the vehicle cabin, and is used for drawing air from the outside environment.

[0004] Although the air inlet is formed between the front wall guard plate and the upper end of the maintenance cover plate in CN204037682U, the air inlet is relatively high, and the outdoor air inlet of the defroster is located at the bottom surface, so the air flow entering between the maintenance cover plate and the inner cover plate through the air inlet is difficult to enter the defroster smoothly, and the front wall below is open, so that during the driving of the vehicle, the high-speed air flow passes through the front wall to form a negative pressure area, which makes it difficult for the high-speed air flow to enter the defroster, the air inflow of the defroster is insufficient, and the defrosting effect is poor. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a defroster air guide box to solve the problems of insufficient air inflow and poor defrosting effect of the defroster in the prior art, and aims at providing a defroster assembly and vehicle to solve the above problems.

[0006] To achieve the above-mentioned purpose, the defroster air guide box in the utility model adopts the following technical scheme:

[0007] A defrost defrost air guide box includes a box body, one end of which is provided with a front air inlet facing the air inlet on the front of the vehicle, and the other end of which is provided with an air outlet facing upward to connect with the external air inlet on the bottom surface of the defrost ...

[0008] The beneficial effects of the above technical solution are as follows: This utility model is a pioneering invention, proposing an air guide box for a defroster. The air guide box includes a box body, one end of which is provided with a forward-facing air inlet directly facing the air inlet on the front of the vehicle. This allows outside air to directly enter the box body while the vehicle is in motion through the air inlet on the front and the air guide box on the box body. The other end of the box body is provided with an upward-facing air outlet that connects with the external air inlet on the bottom of the defroster. An air guide cavity is formed inside the box body to guide the outside airflow from the air inlet to the air outlet. This allows outside air to pass through the air guide cavity, exit from the air outlet, and enter the external air inlet on the bottom of the defroster, thus entering the defroster's interior, ensuring sufficient airflow and improving the defrosting effect. Simultaneously, the box body is also provided with an installation structure for fixing the box body to the defroster or the vehicle body, ensuring stable installation and normal use of the air guide box.

[0009] Furthermore, the air guide cavity includes an equal air cavity with uniform cross-sectional dimensions and a gradually increasing air cavity connected to the equal air cavity with cross-sectional dimensions gradually increasing towards the air inlet, and the air outlet is located at the end of the equal air cavity.

[0010] Furthermore, the box body includes a top plate, a bottom plate, and a left side plate and a right side plate connected between the top plate and the bottom plate. The top plate and the bottom plate each include a rectangular plate and an isosceles trapezoidal plate located in front of the rectangular plate. The left and right side plates each include a rear side plate connected between the rectangular plates of the top plate and the bottom plate. The rear side plate and the rectangular plate form a uniform air cavity. The left and right side plates also include a front side plate connected between the isosceles trapezoidal plates of the top plate and the bottom plate. The front side plate and the isosceles trapezoidal plate form a gradient air cavity. The front side plate and the rear side plate are arranged at an angle.

[0011] Furthermore, the box body has a filter installation space for installing the filter screen, and the box body has a disassembly and assembly port that communicates with the filter screen installation space for inserting and removing the filter screen. A stopper for preventing the filter screen from falling out is detachably installed on the box body at the disassembly and assembly port.

[0012] Furthermore, the housing includes a top plate, a bottom plate, a left side plate and a right side plate connected between the top plate and the bottom plate, and a rear side plate connected to the left side plate, the right side plate and the bottom plate. The mounting structure includes a top mounting hole provided on the top plate and / or a rear mounting hole provided on the rear side plate.

[0013] Furthermore, the mounting structure includes mounting plates fixed on the left and right sides of the box body, and the mounting plates on both sides are provided with side mounting holes for fixed connection with the fixed brackets on the left and right sides of the defroster.

[0014] To achieve the above objectives, the defrost assembly of this utility model adopts the following technical solution:

[0015] A defrost assembly includes a defrost unit with an external air inlet on its bottom surface. The defrost assembly also includes an air guide box, which includes a box body. One end of the box body has a forward-facing air inlet that faces the air inlet on the front of the vehicle, and the other end of the box body has an upward-facing air outlet that connects with the external air inlet on the bottom surface of the defrost unit. An air guide cavity is formed inside the box body to guide the external airflow from the air inlet to the air outlet. The box body also has a mounting structure for fixing the box body to the defrost unit or the vehicle body.

[0016] The beneficial effects of the above technical solution are as follows: This utility model is an improved invention. The defrost assembly also includes an air guide box, which includes a box body. One end of the box body is provided with a forward-facing air inlet that faces the air inlet on the front of the vehicle. This allows outside air to directly enter the box body while the vehicle is in motion through the air inlet on the front and the air guide box. The other end of the box body is provided with an upward-facing air outlet that connects with the external air inlet on the bottom of the defrost. An air guide cavity is formed inside the box body to guide the outside airflow from the air inlet to the air outlet. This allows outside air to pass through the air guide cavity, exit from the air outlet, and enter the external air inlet on the bottom of the defrost, thus entering the defrost and ensuring sufficient airflow to the defrost, thereby improving the defrosting effect. Simultaneously, the box body is also provided with an installation structure for fixing the box body to the defrost or the vehicle body, ensuring stable installation and normal use of the air guide box.

[0017] Furthermore, the air guide cavity includes an equal air cavity with uniform cross-sectional dimensions and a gradually increasing air cavity connected to the equal air cavity with cross-sectional dimensions gradually increasing towards the air inlet, and the air outlet is located at the end of the equal air cavity.

[0018] Furthermore, the box body includes a top plate, a bottom plate, and a left side plate and a right side plate connected between the top plate and the bottom plate. The top plate and the bottom plate each include a rectangular plate and an isosceles trapezoidal plate located in front of the rectangular plate. The left and right side plates each include a rear side plate connected between the rectangular plates of the top plate and the bottom plate. The rear side plate and the rectangular plate form a uniform air cavity. The left and right side plates also include a front side plate connected between the isosceles trapezoidal plates of the top plate and the bottom plate. The front side plate and the isosceles trapezoidal plate form a gradient air cavity. The front side plate and the rear side plate are arranged at an angle.

[0019] Furthermore, the box body has a filter installation space for installing the filter screen, and the box body has a disassembly and assembly port that communicates with the filter screen installation space for inserting and removing the filter screen. A stopper for preventing the filter screen from falling out is detachably installed on the box body at the disassembly and assembly port.

[0020] Furthermore, a downwardly extending rear fixing plate is fixed to the bottom of the defroster at the rear side of the external air inlet, and a forwardly extending front fixing plate is fixed to the bottom of the defroster at the front side of the external air inlet; the housing includes a top plate, a bottom plate, a left side plate and a right side plate connected between the top plate and the bottom plate, and a rear side plate connected to the left side plate, the right side plate and the bottom plate; the top plate is fixedly connected to the front fixing plate by bolts, and the rear side plate is fixedly connected to the rear fixing plate by bolts, and the mounting structure includes bolt mounting holes respectively provided on the top plate and the rear side plate.

[0021] Furthermore, fixed brackets are fixed to the bottom of the left and right sides of the defrost unit. The installation structure includes mounting plates fixed to the left and right sides of the box body. The mounting plates on both sides are fixedly connected to the fixed brackets on both sides of the defrost unit by bolts. Bolt mounting holes are provided on the mounting plates on both sides.

[0022] To achieve the above objectives, the vehicle of this utility model adopts the following technical solution:

[0023] A vehicle includes a vehicle body and a defrost assembly mounted on the vehicle body. The vehicle body includes a front bulkhead with an air inlet. The defrost assembly includes a defrost unit with an external air inlet on its bottom surface. The defrost assembly also includes an air guide box, which includes a box body. One end of the box body has a forward-facing air inlet that faces the air inlet on the front bulkhead, and the other end of the box body has an upward-facing air outlet that connects with the external air inlet on the bottom surface of the defrost unit. The box body has an air guide cavity formed therein for guiding external airflow from the air inlet to the air outlet. The box body also has a mounting structure for fixing the box body to the defrost unit or the vehicle body.

[0024] The beneficial effects of the above technical solution are as follows: This utility model is an improved invention. The defrost assembly also includes an air guide box, which includes a box body. One end of the box body is provided with a forward-facing air inlet that faces the air inlet on the front of the vehicle. This allows outside air to directly enter the box body while the vehicle is in motion through the air inlet on the front and the air guide box. The other end of the box body is provided with an upward-facing air outlet that connects with the external air inlet on the bottom of the defrost. An air guide cavity is formed inside the box body to guide the outside airflow from the air inlet to the air outlet. This allows outside air to pass through the air guide cavity, exit from the air outlet, and enter the external air inlet on the bottom of the defrost, thus entering the defrost and ensuring sufficient airflow to the defrost, thereby improving the defrosting effect. Simultaneously, the box body is also provided with an installation structure for fixing the box body to the defrost or the vehicle body, ensuring stable installation and normal use of the air guide box.

[0025] Furthermore, the air guide cavity includes an equal air cavity with uniform cross-sectional dimensions and a gradually increasing air cavity connected to the equal air cavity with cross-sectional dimensions gradually increasing towards the air inlet, and the air outlet is located at the end of the equal air cavity.

[0026] Furthermore, the box body includes a top plate, a bottom plate, and a left side plate and a right side plate connected between the top plate and the bottom plate. The top plate and the bottom plate each include a rectangular plate and an isosceles trapezoidal plate located in front of the rectangular plate. The left and right side plates each include a rear side plate connected between the rectangular plates of the top plate and the bottom plate. The rear side plate and the rectangular plate form a uniform air cavity. The left and right side plates also include a front side plate connected between the isosceles trapezoidal plates of the top plate and the bottom plate. The front side plate and the isosceles trapezoidal plate form a gradient air cavity. The front side plate and the rear side plate are arranged at an angle.

[0027] Furthermore, the box body has a filter installation space for installing the filter screen, and the box body has a disassembly and assembly port that communicates with the filter screen installation space for inserting and removing the filter screen. A stopper for preventing the filter screen from falling out is detachably installed on the box body at the disassembly and assembly port.

[0028] Furthermore, a downwardly extending rear fixing plate is fixed to the bottom of the defroster at the rear side of the external air inlet, and a forwardly extending front fixing plate is fixed to the bottom of the defroster at the front side of the external air inlet; the housing includes a top plate, a bottom plate, a left side plate and a right side plate connected between the top plate and the bottom plate, and a rear side plate connected to the left side plate, the right side plate and the bottom plate; the top plate is fixedly connected to the front fixing plate by bolts, and the rear side plate is fixedly connected to the rear fixing plate by bolts, and the mounting structure includes bolt mounting holes respectively provided on the top plate and the rear side plate.

[0029] Furthermore, fixed brackets are fixed to the bottom of the left and right sides of the defrost unit. The installation structure includes mounting plates fixed to the left and right sides of the box body. The mounting plates on both sides are fixedly connected to the fixed brackets on both sides of the defrost unit by bolts. Bolt mounting holes are provided on the mounting plates on both sides. Attached Figure Description

[0030] Figure 1 This is a diagram showing the usage state of an embodiment of the defrost assembly of this utility model;

[0031] Figure 2 This is a perspective view of an embodiment of the defrost assembly of this utility model;

[0032] Figure 3 This is a perspective view of another embodiment of the defrost assembly of this utility model;

[0033] Figure 4 This is a perspective view of the defrost unit in an embodiment of the defrost unit assembly of this utility model;

[0034] Figure 5 This is a perspective view of the air guide box in an embodiment of the defroster assembly of this utility model;

[0035] Figure 6 This is a perspective view of the air guide box from another angle in an embodiment of the defroster assembly of this utility model;

[0036] Figure 7 This is another perspective view of the air guide box in the defrost assembly embodiment of this utility model;

[0037] Figure 8 This is a side sectional view of the air guide box in an embodiment of the defrost unit of this utility model.

[0038] In the diagram: 1. Defroster; 11. External air inlet; 12. Internal air inlet; 13. Rear mounting plate; 131. Welding nut; 14. Front mounting plate; 15. Mounting bracket; 16. Condensate pipe; 2. Box body; 21. Top plate; 211. Top rectangular plate; 212. Top isosceles trapezoidal plate; 213. Top mounting hole; 214. Top through hole; 22. Bottom plate; 221. Bottom rectangular plate; 222. Bottom isosceles trapezoidal plate 223. Shaped plate; 224. Disassembly port; 225. Welding nut; 226. Bottom through hole; 23. Left side plate; 231. Left rear plate; 232. Left front plate; 24. Right side plate; 241. Right rear plate; 242. Right front plate; 25. Rear side plate; 251. Rear mounting hole; 26. Limiting frame; 3. Mounting plate; 31. Side mounting hole; 4. Baffle; 5. Butterfly bolt; 6. Front cover; 61. Air inlet. Detailed Implementation

[0039] To address the technical problems existing in the prior art, the basic concept of this utility model is to set up an air guide box between the air inlet on the front of the vehicle and the outer air inlet of the defroster, so as to directly guide the external airflow entering the air inlet of the front to the outer air inlet of the defroster, thereby increasing the air intake of the defroster and improving the defrosting effect.

[0040] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0041] Embodiment 1 of the defrost assembly in this utility model:

[0042] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the defrost assembly includes a defrost unit 1. An external air inlet 11 is located on the bottom surface of the defrost unit 1, communicating with the outside of the vehicle compartment to draw air from the external environment. An internal air inlet 12 is located on the rear side of the defrost unit 1, communicating with the inside of the vehicle compartment to draw air from inside the compartment. A downwardly extending rear mounting plate 13 is fixed to the bottom of the defrost unit 1 behind the external air inlet 11, and a welding nut 131 is welded to the rear side of the rear mounting plate 13. A forward-extending front mounting plate 14 is fixed to the bottom of the defrost unit 1 in front of the external air inlet 11, and a welding nut (not shown in the figure) is also welded to the top surface of the front mounting plate 14. Mounting brackets 15 are fixed to the bottom of the left and right sides of the defrost unit 1, respectively, for fixing the defrost unit 1 to the vehicle body. Two condensate drain pipes 16 are also provided at the bottom of the defrost unit 1 for draining condensate generated in cooling mode.

[0043] The defrost assembly also includes an air guide box, combined with Figures 1-3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the air guide box includes a box body 2. One end (front end) of the box body 2 is provided with a front air inlet facing the air inlet 61 on the front of the vehicle 6. The front end of the box body 2 can be connected to the front of the vehicle 6 or there can be a certain gap. When the vehicle is in motion, outside air can directly enter the interior of the box body 2 through the air inlet 61 on the front of the vehicle 6 and the front air inlet on the box body 2. The other end (rear end) of the box body 2 is provided with an air outlet facing upwards to connect with the external air inlet 11 on the bottom surface of the defroster 1. An air guide cavity is formed inside the box body 2 to guide the outside airflow from the front air inlet to the air outlet. In this way, outside air can be discharged from the air outlet through the air guide cavity of the box body 2 and enter the external air inlet 11 on the bottom surface of the defroster 1, and then enter the interior of the defroster 1, ensuring that the defroster 1 can get sufficient air intake, thereby improving the defrosting effect.

[0044] Furthermore, the air guide cavity includes an equal air cavity with uniform cross-sectional dimensions and a gradient air cavity connected to the equal air cavity with cross-sectional dimensions gradually increasing towards the windward direction. The air outlet is located at the end of the equal air cavity. The air inlet 61 on the front fascia 6 is a long strip-shaped air inlet extending along the left and right direction of the vehicle body. In this way, more external airflow can enter the vehicle body through the air inlet 61, and thus more airflow can enter the air guide cavity, further increasing the air intake of the defroster 1.

[0045] The box body 2 is also provided with an installation structure for fixing the box body 2 to the defroster 1 to ensure stable installation and normal use of the air guide box. Specifically, the box body 2 includes a top plate 21, a bottom plate 22, a left side plate 23 and a right side plate 24 connected between the top plate 21 and the bottom plate 22, and a rear side plate 25 connected to the left side plate 23, the right side plate 24 and the bottom plate 22. The front ends of the top plate 21, the bottom plate 22, the left side plate 23 and the right side plate 24 together form the aforementioned air inlet, and the top end of the left side plate 23, the right side plate 24, the rear side plate 25 and the top end of the top plate 21 together form the aforementioned air outlet. The connection between the plates is all by welding. This box body structure is relatively simple and easy to process and manufacture.

[0046] Furthermore, the top plate 21 and the bottom plate 22 each include a rectangular plate and an isosceles trapezoidal plate located in front of the rectangular plate. The left and right side plates each include a rear side plate connecting the rectangular plates of the top plate 21 and the bottom plate 22, and a front side plate connecting the isosceles trapezoidal plates of the top plate 21 and the bottom plate 22. The rear side plate and the rectangular plate form a uniform air cavity, and the front side plate and the isosceles trapezoidal plate form a gradient air cavity. The front side plate and the rear side plate are arranged at an angle. In this way, the top plate 21 and the bottom plate 22 are both flat plates, while the left and right side plates are bent plates, which facilitates the processing and manufacturing of the box body 2.

[0047] Specifically, such as Figure 5 As shown, the top plate 21 includes a top rectangular plate 211 and a top isosceles trapezoidal plate 212; the bottom plate 22 includes a bottom rectangular plate 221 and a bottom isosceles trapezoidal plate 222; the left side plate 23 includes a left rear plate 231 and a left front plate 232; and the right side plate 24 includes a right rear plate 241 and a right front plate 242. The top rectangular plate 211, the bottom rectangular plate 221, the left rear plate 231, and the right rear plate 241 together form the aforementioned uniform air cavity, thus the uniform air cavity is a rectangular air cavity. The top isosceles trapezoidal plate 212, the bottom isosceles trapezoidal plate 222, the left front plate 232, and the right front plate 242 together form the aforementioned gradient air cavity.

[0048] Furthermore, the housing 2 has a filter installation space for installing a filter screen. By installing the filter screen, the incoming air can be filtered, thereby purifying the air entering the defroster 1 and extending the service life of the defroster 1. Specifically, as follows...Figures 5-8 As shown, the filter installation space is set within the equalization air cavity. Two limiting frames 26 are welded and fixed to the inner wall of the housing 2, with the filter located between the two limiting frames 26. The frame edges of the limiting frames 26 are made of L-shaped plates. One side of the L-shaped plate is welded and fixed to the inner wall of the housing 2, and the other side forms a baffle to stop the filter, thereby limiting the front and rear movement of the filter.

[0049] The housing 2 has a disassembly / removal port 223 that communicates with the filter installation space for inserting and removing the filter. In this embodiment, the disassembly / removal port 223 is located on the base plate 22. When the filter needs to be replaced after a period of use, the operation is performed from the bottom of the vehicle, making replacement convenient. A stop for preventing the filter from falling out is detachably installed on the base plate 22 at the disassembly / removal port 223. In this embodiment, the stop is a baffle 4, and two baffles 4 are provided. Two welding nuts 224 are welded and fixed to the inner wall of the housing 2. Each baffle 4 is fixed to the base plate 22 by a butterfly bolt 5 that passes through the baffle 4 and the base plate 22 and is threadedly connected to the welding nuts 224. The baffle 4 has two bolt holes, which can be selected during installation. After the baffle 4 is fixed, it spans the disassembly / removal port 223, preventing the filter from falling out.

[0050] The above-mentioned installation structure includes a top mounting hole 213 on the top plate 21 and a rear mounting hole 251 on the rear side plate 25. Both the top mounting hole 213 and the rear mounting hole 251 are bolt mounting holes for mounting bolts, so that the top plate 21 can be fixedly connected to the front fixing plate 14 by bolts, and the rear side plate 25 can be fixedly connected to the rear fixing plate 13 by bolts. There are fixed connection points on the top and rear sides of the box body 2 to ensure stable installation. At the same time, after the box body 2 is fixed, it completely seals the external air inlet 11 of the defroster 1, ensuring that the airflow can enter the interior of the defroster 1 through the external air inlet 11.

[0051] Furthermore, the above-mentioned installation structure also includes mounting plates 3 fixed on the left and right sides of the box body 1. The mounting plates 3 are L-shaped, with their horizontal sides welded and fixed to the bottom plate 22, and their vertical sides extending vertically upward from one side of the rear side plate. The ends of the vertical sides are provided with side mounting holes 31, which are also bolt mounting holes, so that the two mounting plates 3 can be fixedly connected to the fixing brackets 15 on the left and right sides of the defroster 1 by bolts, thereby further enhancing the fixed installation effect of the air guide box.

[0052] In addition, two condensate pipes 16 are provided on the top plate 21 through the top through hole 214, and two condensate pipes 16 are provided on the bottom plate 22 through the bottom through hole 225. This facilitates the installation and arrangement of the defrost 1 and the air guide box without changing the structure of the defrost 1 itself.

[0053] In other embodiments of the defrost assembly: the mounting plate can also be a vertical plate in the shape of an "I" or an L-shaped plate extending vertically. In this case, the lower end of the mounting plate is directly welded and fixed to the left or right side plate of the box, and the upper end is provided with a side mounting hole.

[0054] In other embodiments of the defrost assembly: the left and right sides of the air guide box may no longer be fixed with mounting plates, and the box is only bolted to the front and rear fixing plates of the defrost via the top mounting holes and the rear mounting holes, respectively.

[0055] In other embodiments of the defrost assembly: the air guide box can be bolted to the front fixing plate of the defrost only through the top mounting hole, in which case the bottom of the defrost does not need to be set with a rear fixing plate, or the box can be bolted to the rear fixing plate of the defrost only through the rear mounting hole, in which case the bottom of the defrost does not need to be set with a front fixing plate.

[0056] In other embodiments of the defrost assembly: the top mounting hole or the rear mounting hole can be replaced with a welded stud. In this case, the corresponding front or rear mounting plate has a through hole for the welded stud to pass through. The welded stud passes through the corresponding through hole and is then connected to the nut. Alternatively, in other embodiments, the welded nut on the front or rear mounting plate can be replaced with a welded stud. In this case, the top mounting hole on the corresponding top plate is a stud through hole, or the rear mounting hole on the rear side plate is a stud through hole.

[0057] In other embodiments of the defrost assembly: the housing and the defrost may not be connected by bolts, but by direct welding. In this case, the mounting structure on the housing is a reserved welding surface or welding bevel. Of course, in other embodiments, the housing may also be fixedly installed on the vehicle body. The fixing method may be bolt connection or welding, and the specific form is the same as the above embodiments.

[0058] In other embodiments of the defrost assembly: one end of the stop can be hinged to the housing, and the other end can be detachably connected to the housing. The hinge axis can extend horizontally or vertically. The detachable connection can be a bolt connection or a snap-fit ​​connection. After the end of the stop is disconnected from the housing, the disassembly port can be opened by rotation. When the end of the stop is connected to the housing, the stop still spans the disassembly port to prevent the filter from falling off.

[0059] In other embodiments of the defrost assembly: regardless of how detachable the stop is, the stop can be a block or a lever.

[0060] In other embodiments of the defrost assembly, the filter can also be installed at the air inlet of the housing to filter the incoming air from the outset.

[0061] In other embodiments of the defrost assembly: the filter installation space may not be provided inside the housing, that is, the filter is not installed inside the housing. At this time, there is no need to provide a stop or disassembly port, and the outside air can be filtered by the filter at the external air inlet of the defrost.

[0062] In other embodiments of the defrost assembly: neither the top plate nor the bottom plate is a flat plate. The rectangular plate and the isosceles trapezoidal plate of the top plate and the bottom plate are arranged at an angle. The isosceles trapezoidal plate is inclined upward. That is, both the top plate and the bottom plate are bent plates. At this time, the left plate and the right plate are still bent plates, and the height of the front side plate gradually increases from back to front. At this time, the four sides of the air inlet are all expanded outward.

[0063] In other embodiments of the defroster assembly: the air guide cavity may not include the gradient air cavity, and the entire body may be a uniform air cavity. For example, the air guide cavity may be a rectangular air cavity, and the top plate, bottom plate, left side plate and right side plate of the box may be flat plates without bending.

[0064] In other embodiments of the defrost assembly: the air guide cavity may not include the uniform air cavity, and the entire body is a gradually changing air cavity. In this case, the top plate and bottom plate are isosceles trapezoidal plates, the left side plate and right side plate are flat plates without bending, and the left side plate and right side plate gradually tilt outward from back to front.

[0065] The embodiment of the defrost air guide box in this utility model is as follows: the specific structure of the defrost air guide box is the same as that of the air guide box in any embodiment of the defrost assembly described above, and will not be repeated here.

[0066] The vehicle embodiment of this utility model is as follows: the vehicle includes a vehicle body and a defrost assembly mounted on the vehicle body. The vehicle body includes a front fascia with an air inlet. The specific structure of the defrost assembly is the same as that of any of the above embodiments and will not be repeated here.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. An air deflector box for a defroster, characterized by, The box body is provided with a windward opening arranged to face the air inlet on the front wall of the vehicle and an air outlet arranged to face the outer air inlet on the bottom surface of the defroster, and a wind guide cavity is formed in the box body to guide the external air flow from the windward opening to the air outlet.

2. The defroster air duct for a refrigerator according to claim 1, wherein The wind guide cavity comprises an equal wind cavity with equal cross-sectional dimensions and a gradually changing wind cavity in communication with the equal wind cavity and gradually changing in cross-sectional dimension towards the windward opening, and the air outlet is located at the end of the equal wind cavity.

3. The defroster air deflector box of claim 2, wherein, The box body comprises a top plate, a bottom plate, left and right side plates connected between the top plate and the bottom plate, and a rear side plate connected to the left and right side plates and the bottom plate.

4. The defroster air duct of any one of claims 1 to 3, wherein The box body has a filter mounting space for mounting a filter, and a dismounting opening is formed in the box body to communicate with the filter mounting space for mounting and dismounting the filter.

5. The defroster air duct of claim 1 or 2, wherein The box body comprises a top plate, a bottom plate, left and right side plates connected between the top plate and the bottom plate, and a rear side plate connected to the left and right side plates and the bottom plate.

6. The defroster air box according to any one of claims 1 to 3, wherein The mounting structure comprises mounting plates fixed to the left and right sides of the box body, and side mounting holes are formed in the mounting plates for fixedly connecting with the fixing brackets on the left and right sides of the defroster.

7. A defrost assembly, comprising a defrost unit, wherein an external air inlet is provided on the bottom surface of the defrost unit, characterized in that, The defroster assembly further comprises a wind guide box as claimed in any one of claims 1 to 4.

8. The defroster assembly of claim 7, wherein, The bottom of the defroster is fixed with a rear fixing plate extending downward at the rear side of the outer air inlet and a front fixing plate extending forward at the front side of the outer air inlet; the box body comprises a top plate, a bottom plate, left and right side plates connected between the top plate and the bottom plate, and a rear side plate connected to the left and right side plates and the bottom plate, and the left and right side plates, the rear side plate and the top end of the top plate jointly form the air outlet; the top plate is fixedly connected with the front fixing plate by bolts, and the rear side plate is fixedly connected with the rear fixing plate by bolts; and the mounting structure comprises bolt mounting holes formed in the top plate and the rear side plate.

9. A defroster assembly according to claim 7 or 8, characterized in that, The bottom of the defroster is fixed with a rear fixing plate extending downward at the rear side of the outer air inlet and a front fixing plate extending forward at the front side of the outer air inlet; the box body comprises a top plate, a bottom plate, left and right side plates connected between the top plate and the bottom plate, and a rear side plate connected to the left and right side plates and the bottom plate, and the left and right side plates, the rear side plate and the top end of the top plate jointly form the air outlet; the top plate is fixedly connected with the front fixing plate by bolts, and the rear side plate is fixedly connected with the rear fixing plate by bolts; and the mounting structure comprises bolt mounting holes formed in the top plate and the rear side plate.

10. A vehicle comprising a vehicle body and a defroster assembly mounted on the vehicle body, the vehicle body including a front wall having an air inlet opening formed therein, wherein the defroster assembly comprises: The defroster assembly is as claimed in any one of claims 7 to 9.

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