Vehicle air handling unit structure and assembling method thereof

Abstract

The invention relates to the field of automobile air conditioning systems, in particular to an automobile air conditioning box structure and an assembling method thereof.The automobile air conditioning box structure comprises a dispatcher shell, and a hot air channel is formed in the dispatcher shell; a flow guide mechanism is arranged in the hot air channel and comprises an air guide plate arranged in the hot air channel. The air guide mechanism is arranged at the tail of the hot air channel, so that hot air can be scattered, the hot air is prevented from being extruded to the edge position of the flow channel on the inner wall of the shell by cold air even if the hot air amount is small in subsequent use, the cold air and the hot air can be better mixed, and therefore the temperature difference of all the air outlets is reduced in the subsequent air outlet process, and the service life is prolonged. And meanwhile, the trend that the temperature of the air outlet rises along with the increase of the opening degree of the mixing air door is improved, and a temperature curve becomes smoother.

Description

Technical Field

[0001] The invention relates to the field of automobile air-conditioning systems, in particular to a vehicle air-conditioning box structure and an assembly method thereof. Background Art

[0002] For the comfort of passengers, the temperature difference of the same type of air outlets of the car air conditioner should be as small as possible. The size of the temperature difference depends on factors such as the internal air guide structure of the air conditioning box and the wind resistance of the vehicle's air duct. The temperature difference of the car air conditioning outlet is an important performance indicator of the air conditioning box.

[0003] In the process of the mixing damper of the existing air-conditioning box changing from full cold to full hot, when the mixing damper is opened very small, the mixed air area of ​​the air-conditioning box presents the characteristics of strong cold air and weak hot air. At this time, the hot air is basically squeezed to the position near the inner wall of the shell, and is not fully mixed with the cold air. This causes the temperature of each air outlet to be inconsistent. When the mixing damper is opened to about half, the intensities of the cold and hot air are equal, and the cold and hot air will converge and mix. Under this working condition, the temperature difference of each air outlet will be reduced.

[0004] Although there are some air guide technologies in the prior art, the existing air guide efficiency is not high and cannot solve the problem of mixing the hot air and the cold air uniformly when the opening of the mixing damper is very small.

[0005] The existing patent 202323564254.X - A vehicle heating and cooling air conditioning HVAC assembly does not clearly disclose the technical content for solving the above technical problems.

[0006] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing air conditioning box structure. Summary of the invention

[0007] The object of the present invention is to provide a vehicle air conditioning box structure which can better ensure the uniformity of mixing hot air and cold air.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is:

[0009] A vehicle air conditioning box structure comprises a distributor shell, wherein a hot air channel is arranged in the distributor shell; a flow guiding mechanism is arranged in the hot air channel, and the flow guiding mechanism comprises a wind guiding plate arranged in the hot air channel.

[0010] The two ends of the air guide plate are pressed against the inner wall of the hot air channel;

[0011] The air guide plate is connected to the distributor housing via a connecting structure;

[0012] The connection structure comprises a fixing mechanism, which comprises a fastening hole arranged on the distributor housing and a fixing hole arranged on the air guide plate; the air guide plate is connected to the fastening hole of the distributor housing through a fastener passing through the fixing hole.

[0013] The connection mechanism also includes a clamping mechanism, which includes a clamping protrusion arranged on the inner wall of the distributor housing and a clamping groove arranged at the end of the air guide plate. The air guide plate is clamped on the clamping protrusion on the distributor housing through the clamping groove.

[0014] The clamping mechanism and the fixing mechanism are distributed at two ends of the air guide plate.

[0015] The vertical cross sections of the clamping groove and the clamping protrusion are both rectangular.

[0016] The wind deflector comprises a wind deflector body, and the wind deflector body is provided with reinforcing ribs; the reinforcing ribs are arranged along the length direction of the wind deflector body.

[0017] At least one end of the air guide plate body is provided with a fitting edge.

[0018] The air guide plate body comprises a first plate body and a second plate body connected to the first plate body, wherein the second plate body is an arc-shaped plate; and the first plate body is arranged in the hot air channel.

[0019] The outer side surface of the first plate body away from one end of the second plate body is an outer arc surface; the first plate body is in contact with the inner wall of the hot air channel.

[0020] A method for assembling a vehicle air conditioning box structure, the method comprising the following steps:

[0021] Step 1: Determine the distributor housing and flow guide mechanism to be assembled;

[0022] Step 2: Place the dispenser housing on a flat surface and keep it level;

[0023] Step 3: First, connect the flow guide mechanism to the dispenser housing through the clamping mechanism, and then fix it to the dispenser housing through the fastening mechanism;

[0024] Step 4: After completing step 3, the assembly between a distributor housing and a guide mechanism is completed. If repeated assembly is required, repeat steps 1-3.

[0025] The advantages of the present invention are:

[0026] The invention discloses a vehicle air conditioning box structure and an assembly method thereof.

[0027] The present invention arranges an air guide mechanism at the tail end of the hot air channel to disperse the hot air, thereby preventing the hot air from being squeezed to the edge of the flow channel on the inner wall of the shell by the cold air during subsequent use, even if the amount of hot air is small. The hot and cold air can be better mixed, thereby reducing the temperature difference of each air outlet during subsequent air outlet, and at the same time improving the trend of the air outlet temperature rising with the increase of the opening of the mixing damper, so that the temperature curve becomes smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0029] Figure 1 It is a structural schematic diagram of the present invention.

[0030] Figure 2 It is a schematic diagram of the structure of the dispenser housing in the present invention.

[0031] Figure 3 It is a structural schematic diagram of the air guide plate in the present invention.

[0032] Figure 4 It is a structural schematic diagram of a distributor in the present invention in which an air guide plate is arranged in the left shell.

[0033] Figure 5 It is a structural schematic diagram of an air guide plate provided in the right shell of the dispenser in the present invention.

[0034] The marks in the above figure are:

[0035] 1. Air guide plate, 2. Reinforcement ribs, 3. Fitting edges, 4. Snap-in grooves, 5. Dispenser housing. DETAILED DESCRIPTION

[0036] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0037] A vehicle air conditioning box structure includes a distributor shell 5, wherein a hot air channel 51 is provided in the distributor shell 5; a guide mechanism is provided in the hot air channel 51, and the guide mechanism includes an air guide plate 1 arranged in the hot air channel 51; the present invention arranges the air guide mechanism at the tail of the hot air channel 51, so as to achieve the dispersion of hot air, and avoid that in subsequent use, even when the amount of hot air is small, the hot air will not be squeezed to the edge of the flow channel on the inner wall of the shell by the cold air, so that the hot and cold air can be better mixed, thereby reducing the temperature difference of each air outlet during subsequent air outlet, and at the same time improving the trend of the temperature at the air outlet rising with the increase of the opening of the mixing damper, so that the temperature curve becomes smoother.

[0038] The vehicle air conditioning box structure of the present invention mainly includes a distributor housing 5. In conventional design, the vehicle air conditioning box structure includes two distributor housings 5, which are generally divided into a left distributor housing and a right distributor housing, and the two housings are arranged opposite to each other.

[0039] In the present invention, a hot air channel 51 is provided in the dispenser housing 5, which is mainly used for guiding the flow of hot air.

[0040] The guide mechanism disclosed in the present invention is mainly arranged at the tail end of the hot air channel 51, which is convenient for breaking up the hot air flow in the hot air channel 51 and facilitating the subsequent mixing with the cold air flow, thereby preventing the hot air from being squeezed to the edge of the flow channel on the inner wall of the shell by the cold air when the hot air flow is small.

[0041] Furthermore, in the present invention, the two ends of the air guide plate 1 are pressed against the inner wall of the hot air channel 51; the two ends of the air guide plate 1 are respectively attached to the inner walls on the opposite sides of the hot air channel 51, and the air guide plate 1 is arranged parallel to the direction of air flow. Based on this design, the air guide plate 1 can play the above-mentioned role while reducing the influence of the air guide plate 1 on the normal flow of the hot air flow.

[0042] Meanwhile, in the present invention, the air guide plate 1 is connected to the distributor housing 5 via a connecting structure; the setting of the connecting structure facilitates the arrangement and installation of the air guide plate 1 in the distributor housing 5 .

[0043] In addition, the connection structure in the present invention includes a fixing mechanism, and the setting of the fixing mechanism plays a good locking and fixing role, which facilitates the installation and fixation of the air guide plate 1 on the inner wall of the distributor housing 5.

[0044] Specifically, the fixing mechanism in the present invention includes a fastening hole 53 arranged on the distributor housing 5 and a fixing hole 12 arranged on the air guide plate 1; the air guide plate 1 is connected to the fastening hole 53 of the distributor housing 5 by a fastener passing through the fixing hole 12; the fastening hole 53 is a threaded hole, the fixing hole 12 can be a plain hole, and the fastener can be a fastening screw, which passes through the fixing hole 12 on the air guide plate 1 and is screwed into the fastening hole 53 on the distributor housing 5; in addition, in order to facilitate the arrangement of the fixing hole 12, a protrusion can be set on the inner wall of the hot air channel 51 to facilitate the setting and installation of the fixing hole 12.

[0045] Furthermore, the connection mechanism in the present invention also includes a snap-in mechanism, which mainly plays a role in installation and positioning, so as to better ensure the stability and accuracy of the arrangement position of the air guide plate 1 in the hot air channel 51.

[0046] Specifically, in the present invention, the snap-in mechanism includes a snap-in protrusion 52 arranged on the inner wall of the distributor housing 5 and a snap-in groove 4 arranged at the end of the air guide plate 1, and the air guide plate 1 is snap-into the snap-in protrusion 52 on the distributor housing 5 through the snap-in groove 4; the coordinated use of the snap-in protrusion 52 and the snap-in groove 4 facilitates the snap-in limiting of the end of the air guide plate 1 in the hot air channel 51; and facilitates the coordinated fixing mechanism to realize the installation and fixation of the air guide plate 1 in the distributor housing 5.

[0047] Furthermore, in the present invention, the clamping mechanism and the fixing mechanism are distributed at both ends of the air guide plate 1; based on the above design, one end of the air guide plate 1 can be clamped on the distributor housing 5, and the other end is connected to the distributor housing 5 through a fastener. Based on the above design, only one end of the air guide plate 1 needs to be subsequently screwed and fixed, reducing the trouble of nailing when tightening the screws; at the same time, the fastening fastener is too close to the inner wall of the distributor housing 5, so that the existence of the side wall of the distributor housing 5 affects the normal nailing operation.

[0048] That is, one end of the air guide plate 1 of the present invention is connected to the distributor housing 5 by a snap-fitting manner, and the other end is fixedly connected to the distributor housing 5 by a fixing mechanism. Such a design can greatly reduce the difficulty of assembling the air guide plate 1, which is conducive to improving the assembly efficiency of the air guide plate 1.

[0049] Furthermore, in the present invention, the vertical cross-sections of the snap-in groove 4 and the snap-in protrusion 52 are both rectangular; based on such a configuration, the snap-in groove 4 and the snap-in protrusion 52 have self-limiting capabilities, thereby preventing the air guide plate 1 from rotating around the snap-in protrusion 52.

[0050] Meanwhile, in the present invention, the engaging groove 4 is generally designed as a sunken groove structure, and such a configuration can prevent the air guide plate 1 from passing through the engaging protrusion 52 .

[0051] Furthermore, the wind guide plate 1 in the present invention includes a wind guide plate body 11, which is the main structure of the wind guide plate 1. In addition, the wind guide plate body 11 in the present invention is provided with reinforcing ribs 2; the reinforcing ribs 2 are arranged along the length direction of the wind guide plate body 11; the reinforcing ribs 2 play a good reinforcement role, ensuring the structural strength of the wind guide plate body 11 and avoiding deformation and collapse of the wind guide plate body 11.

[0052] Furthermore, in the present invention, at least one end of the air guide plate body 11 is provided with a fitting edge 3; the fitting edge 3 disclosed in the present invention increases the contact area between the air guide plate 1 and the hot air channel 51; plays a good limiting and positioning role; and thus better ensures the stability of the position of the air guide plate 1 and the distributor housing 5 during installation; avoids the flipping of the air guide plate 1 in the hot air channel 51, and reduces the shaking of the air guide plate 1 during the subsequent operation of the air-conditioning assembly, which causes abnormal noise of the air-conditioning assembly.

[0053] Furthermore, in the present invention, the air guide plate body 11 includes a first plate body 111 and a second plate body 112 connected to the first plate body 111, and the first plate body 111 is arranged in the hot air channel 51; in the present invention, the first plate body 111 mainly plays a dividing and blocking role, optimizing the subsequent mixing of hot air and cold air; and can make the hot and cold air mix better.

[0054] At the same time, in the present invention, the second plate body 112 is an arc-shaped plate; based on the above design, the second plate body 112 has a corner. During subsequent use, the corner formed by the second plate body 112 on the air guide plate 1 can be clamped at the corner of the hot air channel 51. Based on the above design, the position of the air guide plate 1 can be better defined, ensuring the accuracy and stability of the installation and placement of the air guide plate 1.

[0055] Furthermore, in the present invention, the outer side surface of the first plate body 111 away from one end of the second plate body 112 is an outer arc surface; the first plate body 111 is in contact with the inner wall of the hot air channel 51; such a setting ensures the tightness of the first plate body 111 in contact with the inner wall of the hot air channel 51, and at the same time, the inner wall of the hot air channel 51 can limit the position of the first plate body 111, thereby better ensuring the stability of the arrangement of the air guide plate 1 in the hot air channel 51.

[0056] A method for assembling a vehicle air conditioning box structure, the method comprising the following steps:

[0057] Step 1: Determine the distributor housing 5 and the flow guide mechanism to be assembled;

[0058] Step 2: Place the dispenser housing 5 on a flat surface and keep it horizontal;

[0059] Step 3: First, connect the flow guide mechanism to the dispenser housing 5 through the clamping mechanism, and then fix it to the dispenser housing 5 through the fastening mechanism;

[0060] Step 4: After step 3 is completed, the assembly between a distributor housing 5 and the guide mechanism is completed. If repeated assembly is required, steps 1-3 can be repeated.

[0061] Based on the above operation steps, the present invention facilitates the assembly and installation of the flow guide mechanism in the distributor housing 5 . Specific embodiment:

[0063] The present invention discloses a vehicle air conditioning box structure, which mainly includes a distributor housing 5, in which a hot air channel 51 is arranged; a guide mechanism is arranged in the hot air channel 51, and the guide mechanism includes an air guide plate 1 arranged in the hot air channel 51.

[0064] The present invention adds an air guide plate 1 inside the distributor housing 5. The air guide plate 1 is located at the end of the hot air channel 51. The purpose is to prevent the hot air from being squeezed to the edge of the flow channel on the inner wall of the housing by the cold air when the mixing damper is opened slightly and the hot air is less. The hot and cold air are fully mixed, thereby reducing the temperature difference between the air outlets and improving the trend of the outlet temperature rising as the mixing damper opening increases, making the temperature curve smoother.

[0065] When installing:

[0066] The dispenser housing 5 is divided into a dispenser left housing and a dispenser right housing based on different setting positions.

[0067] The steps for connecting the left housing of the distributor to the flow guide mechanism are as follows:

[0068] First, place the left shell of the dispenser flat on a flat surface and keep it horizontal to facilitate the assembly of the sample;

[0069] A snap-in protrusion 52 or a snap-in groove is provided on the inner wall of the hot air channel 51 of the left shell of the distributor, and a snap-in groove 4 or a protrusion is provided on the air guide plate 1, so as to facilitate the plug-in installation of the air guide plate 1 in the distributor shell 5.

[0070] During actual installation, it is generally required that the air guide plate 1 be obliquely aligned with the clamping protrusion 52 on the left housing of the dispenser, and the air guide plate 1 be inserted into the clamping protrusion 52 of the left housing of the dispenser.

[0071] When the air guide plate 1 and the engaging protrusion 52 are assembled to the deepest position, the air guide plate 1 is gently pressed down along the inner wall of the hot air channel 51, and the fastening holes 53 on the air guide plate 1 are aligned with the screw fastening holes 53 on the left shell of the dispenser.

[0072] The air guide plate 1 is fixed on the left housing of the dispenser and will not shake. At this time, it can be fixed with screws, so that the air guide plate 1 is well fixed on the left housing 1 of the dispenser;

[0073] Using the same principle, the corresponding air guide plate 1 is fixed to the right housing of the distributor.

[0074] Based on the above design, in subsequent use, the wind in the mixed air zone will eventually pass through the air guide plate 1, and the hot air and the cold air will not be unevenly mixed due to the small opening of the mixing air door. With the function of the air guide plate 1, when the cold air is strong and the hot air is weak, the cold and hot air in the mixed air zone can also be mixed evenly, and finally the temperature of the air at the air outlet is relatively uniform, making the temperature curve smoother; finally, the entire air-conditioning box can meet the user's comfort in the car.

[0075] The structure of the air conditioning box disclosed in the present invention mainly comprises: adding air guide plates 1 to the left and right shells of the distributor in the air conditioning box and fixing them near the air outlet.

[0076] The above-mentioned air-conditioning box structure disclosed in the present invention is mainly to improve the problem that when the mixing damper is opened at a small degree, the cold and hot air are not mixed well in the mixed air zone, which eventually leads to different air outlet temperatures of the same type in the same mode of the air-conditioning box, resulting in poor linearity and ultimately making the user feel poor comfort in the car.

[0077] An air guide plate 1 is added to the left and right shells of the distributor in the air-conditioning box. When the opening of the mixing damper is relatively small, the cold air and the hot air are mixed better in the mixed air area, so that the temperature of the same type of air outlets is relatively uniform in each mode of the air-conditioning box. This can be seen in the temperature linearity, where the temperature curve becomes flatter, which can ultimately meet the user's comfort needs.

[0078] At the same time, the air guide plate 1 also needs to be fixed in the left and right shells of the distributor to prevent the air guide plate 1 from shaking during the driving of the vehicle and to avoid abnormal noise and other undesirable phenomena in the vehicle.

[0079] Based on the premise of the new design concept, technical personnel in this field have made various modifications and improvements, and proposed various technical features and structural combinations for the present invention, all of which belong to the same type of structural design and are within the scope of infringement protection.

[0080] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A vehicle air conditioning box structure, characterized in that: It comprises a distributor shell, in which a hot air channel is arranged; in which a flow guiding mechanism is arranged, and the flow guiding mechanism comprises a flow guiding plate arranged in the hot air channel.

2. A vehicle air conditioning box structure according to claim 1, characterized in that: The two ends of the air guide plate are pressed against the inner wall of the hot air channel; The air guide plate is connected to the distributor housing via a connecting structure; The connection structure comprises a fixing mechanism, which comprises a fastening hole arranged on the distributor housing and a fixing hole arranged on the air guide plate; the air guide plate is connected to the fastening hole of the distributor housing through a fastener passing through the fixing hole.

3. A vehicle air conditioning box structure according to any one of claims 1 or 2, characterized in that: The connection mechanism also includes a clamping mechanism, which includes a clamping protrusion arranged on the inner wall of the distributor housing and a clamping groove arranged at the end of the air guide plate. The air guide plate is clamped on the clamping protrusion on the distributor housing through the clamping groove.

4. A vehicle air conditioning box structure according to claim 2, characterized in that: The clamping mechanism and the fixing mechanism are distributed at two ends of the air guide plate.

5. The vehicle air conditioning box structure according to claim 2, characterized in that: The vertical cross sections of the clamping groove and the clamping protrusion are both rectangular.

6. The vehicle air conditioning box structure according to claim 1, characterized in that: The wind deflector comprises a wind deflector body, and the wind deflector body is provided with reinforcing ribs; the reinforcing ribs are arranged along the length direction of the wind deflector body.

7. A vehicle air conditioning box structure according to claim 6, characterized in that: At least one end of the air guide plate body is provided with a fitting edge.

8. The vehicle air conditioning box structure according to claim 6, characterized in that: The air guide plate body comprises a first plate body and a second plate body connected to the first plate body, wherein the second plate body is an arc-shaped plate; and the first plate body is arranged in the hot air channel.

9. A vehicle air conditioning box structure according to claim 8, characterized in that: The outer side surface of the first plate body away from one end of the second plate body is an outer arc surface; the first plate body is in contact with the inner wall of the hot air channel.

10. An assembly method of a vehicle air conditioning box structure according to any one of claims 1 to 9, characterized in that: The assembly method comprises the following steps: Step 1: Determine the distributor housing and flow guide mechanism to be assembled; Step 2: Place the dispenser housing on a flat surface and keep it level; Step 3: First, connect the flow guide mechanism to the dispenser housing through the clamping mechanism, and then fix it to the dispenser housing through the fastening mechanism; Step 4: After completing step 3, the assembly between a distributor housing and a guide mechanism is completed. If repeated assembly is required, repeat steps 1-3.

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