Drainage structure of air handling unit

Abstract

The utility model relates to the technical field of automobile air handling units, and discloses an air handling unit drainage structure which comprises a first installation cavity, the first installation cavity is arranged in a heater cavity and used for installing a warm air core body, first slopes are oppositely arranged at the bottom of the first installation cavity in the long edge direction, and a first notch is formed in the junction of the two first slopes; the second installation cavity is arranged in the heater cavity and used for installing a PTC core body, second slopes are oppositely arranged at the bottom of the second installation cavity in the long edge direction, and a second notch is formed in the junction of the two second slopes; the gutter is arranged at the bottom of the second notch, one end of the gutter is communicated with the second notch, and the other end of the gutter is connected with a water outlet communicated with the external environment. The utility model has the beneficial effects that the condensed water accumulated in the heater cavity can be discharged in time, the influence on the warm air core body or the PTC core body caused by the accumulation of the condensed water in the heater cavity is avoided, the air quality in a vehicle is ensured, and the influence on the heating of the vehicle is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air-conditioning box design, in particular to a drainage structure of an air-conditioning box. Background Art

[0002] In the prior art, a heater cavity 1 and an evaporator cavity 2 are provided in the automobile air conditioning box. Due to the layout limitation of the automobile space, the warm air core 4 or the PTC core 5 in the heater cavity 1 will be placed at a lower position, such as Figure 1 As shown, when the temperature damper 3 is opened, part of the condensed water produced by the evaporator 6 during air conditioning cooling will enter the heater cavity 1. When the hot and humid air encounters the cold PTC core 5, condensed water will also be produced on the surface of the PTC core 5.

[0003] When condensed water accumulates in the heater cavity 1 and cannot be discharged in time, it will corrode the sponge of the heater core 4 or the PTC core 5, thereby reducing the air quality in the vehicle. In addition, if the PTC core 5 is soaked in water for a long time, there is a risk that the PTC core 5 will become water-infiltrated and fail, affecting the vehicle heating. Utility Model Content

[0004] The purpose of this utility model is to provide an air conditioning box drainage structure, which can discharge the condensed water accumulated in the heater cavity in time, avoid the accumulation of condensed water in the heater cavity and affect the heater core or PTC core, ensure the air quality in the car, and avoid affecting the vehicle heating.

[0005] In order to achieve the above purpose, the utility model provides an air conditioning box drainage structure, including a heater cavity, an evaporator cavity, and a temperature damper, wherein the temperature damper is used to control the connection and disconnection between the heater cavity and the evaporator cavity, including

[0006] A first installation cavity is provided in the heater cavity and is used to install the heater core. The bottom of the first installation cavity is provided with first slopes opposite to each other along the long side direction. The two first slopes make the bottom surface of the first installation cavity higher at both ends and lower in the middle. A first notch is provided at the intersection of the two first slopes.

[0007] A second mounting cavity is provided in the heater cavity for mounting the PTC core. The bottom of the second mounting cavity is provided with second slopes opposite to each other along the long side direction. The two second slopes make the bottom surface of the second mounting cavity higher at both ends and lower in the middle. A second notch is provided at the intersection of the two second slopes.

[0008] a water diversion trough, provided at the bottom of the second notch, with one end connected to the second notch and the other end connected to a drain outlet connected to the external environment;

[0009] Among them, the condensed water in the first installation cavity converges to the first notch through the two first slopes, flows through the second notch through the water diversion groove and is discharged to the drain outlet; the condensed water in the second installation cavity converges to the second notch through the two second slopes, flows through the water diversion groove and is discharged to the drain outlet.

[0010] Furthermore, a third installation cavity is provided in the evaporator cavity, and the third installation cavity is used to install the evaporator. The bottom of the third installation cavity is provided with third slopes relatively along the long side direction. The two third slopes make the bottom surface of the third installation cavity high at both ends and low in the middle. The drainage outlet is opened at the intersection of the two third slopes.

[0011] Furthermore, the bottom surface of the third installation cavity is staggered with third supporting ribs, and the third supporting ribs are arranged in contact with the bottom surface of the evaporator. Water collecting troughs are provided on both sides of the short side direction of the third installation cavity, and the water in the water collecting troughs flows into the drain outlet after converging through the third supporting ribs.

[0012] Furthermore, the inclination angle of the third slope is greater than or equal to 30°.

[0013] Furthermore, a first supporting rib for supporting the heater core is provided at the bottom of the first installation cavity.

[0014] Furthermore, a second supporting rib for supporting the PTC core is provided at the bottom of the second installation cavity.

[0015] Furthermore, the inclination angle of the first slope is greater than or equal to 2°.

[0016] Furthermore, the inclination angle of the second slope is greater than or equal to 2°.

[0017] Furthermore, water guiding slopes are provided on both sides of the short side of the water diversion groove.

[0018] Furthermore, a windproof rib is provided at one end of the water diversion trough close to the drain outlet.

[0019] Compared with the prior art, the drainage structure of an air-conditioning box in an embodiment of the present utility model has the following beneficial effects: the bottom of the first installation cavity is relatively provided with first slopes along the long side direction, and the two first slopes make the two ends of the bottom surface of the first installation cavity high and the middle low, and a first notch is provided at the intersection of the first slopes, so that the condensed water in the first installation cavity quickly gathers at the first notch; at the same time, the bottom of the second installation cavity is relatively provided with second slopes along the long side direction, and the two second slopes make the two ends of the bottom surface of the second installation cavity high and the middle low, and a second notch is provided at the intersection of the two second slopes, so that the condensed water in the second installation cavity quickly gathers at the second notch, and the first notch is connected with the second notch, and the second notch is connected with the water diversion groove, and the condensed water in the first installation cavity and the second installation cavity is discharged through the drain port connected with the water diversion groove. The overall structure is simple, which avoids the condensed water from affecting the heater core or the PTC core, ensures the air quality in the vehicle, and avoids affecting the vehicle heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of an air conditioning box in the prior art;

[0021] Figure 2 This is a structural diagram of the drainage structure of the air-conditioning box according to an embodiment of the present utility model;

[0022] Figure 3 This is a cross-sectional view of the drainage structure of the air-conditioning box according to an embodiment of the present utility model;

[0023] Figure 4 This is a structural diagram of the evaporator cavity of the air-conditioning box drainage structure according to an embodiment of the present utility model;

[0024] Figure 5 This is a structural diagram of the water diversion trough of the drainage structure of the air-conditioning box according to an embodiment of the present utility model;

[0025] Figure 6 It is a schematic diagram of the condensed water flow path of the air-conditioning box drainage structure in an embodiment of the present utility model.

[0026] In the picture:

[0027] 1. Heater cavity; 11. First mounting cavity; 111. First slope; 112. First notch; 113. First supporting rib; 12. Second mounting cavity; 121. Second slope; 122. Second notch; 123. Second supporting rib;

[0028] 2. Evaporator cavity; 21. Third installation cavity; 211. Third slope; 212. Third supporting rib; 213. Water collecting trough;

[0029] 3. Temperature damper; 4. Heater core; 5. PTC core; 6. Evaporator; 7. Water diversion trough; 71. Water guide slope; 8. Drain outlet; 9. Wind shield rib. DETAILED DESCRIPTION

[0030] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. used in the present invention to indicate the orientation or position relationship are based on the position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the devices and elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of this utility model, it should be understood that the terms "first," "second," etc. are used to describe various types of information, but such information should not be limited to these terms. These terms are merely used to distinguish information of the same type from one another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information without departing from the scope of this utility model.

[0033] like Figures 2 to 6 As shown, an embodiment of the present invention provides an air conditioning box drainage structure, including a heater cavity 1, an evaporator cavity 2, and a temperature damper 3, wherein the temperature damper 3 is used to control the connection and disconnection between the heater cavity 1 and the evaporator cavity 2. In this embodiment, in order to prevent condensed water from accumulating in the heater cavity 1 and being unable to be discharged, thereby affecting the heater core 4 and the PTC core 5, a first installation cavity 11 and a second installation cavity 12 are provided in the heater cavity 1, wherein the first installation cavity 11 is used to install the heater core 4, and the second installation cavity 12 is used to install the PTC core 5. In order to facilitate the collection and discharge of condensed water in the first installation cavity 11, refer to Figures 2 to 4, first slopes 111 are provided opposite to each other at the bottom of the first installation cavity 11 along the long side direction, and the two first slopes 111 make the bottom surface of the first installation cavity 11 higher at both ends and lower in the middle, and a first notch 112 is provided at the intersection of the two first slopes 111; similarly, second slopes 121 are provided opposite to each other at the bottom of the second installation cavity 12 along the long side direction, and the two second slopes 121 make the bottom surface of the second installation cavity 12 higher at both ends and lower in the middle, and a second notch 122 is provided at the intersection of the two second slopes 121; in order to facilitate the simultaneous discharge of condensed water in the first installation cavity 11 and the second installation cavity 12 after being gathered and to simplify the drainage structure, a water diversion groove 7 is provided. Specifically, the water diversion groove 7 is provided at the bottom of the second notch 122, and one end is connected to the second notch 122, and the other end is connected to the drain outlet 8 connected to the external environment. The specific drainage paths within the first installation cavity 11 and the second installation cavity 12 are as follows: condensed water within the first installation cavity 11 flows through the two first slopes 111 to converge at the first notch 112, then flows through the second notch 122, through the water diversion groove 7, and is discharged through the drain outlet 8. Condensed water within the second installation cavity 12 flows through the two second slopes 121 to converge at the second notch 122, then flows through the water diversion groove 7, and is discharged through the drain outlet 8. This prevents condensed water from accumulating within the heater cavity 1.

[0034] In some embodiments, in order to reduce the condensation water accumulation in the evaporator cavity 2, as above, refer to Figure 4 A third mounting cavity 21 is provided within the evaporator chamber 2. This cavity 21 is used to mount the evaporator 6. The bottom of the cavity 21 is provided with third slopes 211 facing each other along its longitudinal direction. The two third slopes 211 make the bottom of the cavity 21 higher at both ends and lower in the middle. A drain port 8 is defined at the intersection of the two third slopes 211. As can be seen, the condensed water within the cavity 21 is directed to drain port 8 due to the third slope 211. This means that the condensed water within the first, second, and third mounting cavities 11, 12, and 21 all drain through the same drain port 8, simplifying the drainage structure.

[0035] In some embodiments, in order to facilitate the support of the evaporator 6, third supporting ribs 212 are staggered on the bottom surface of the third installation cavity 21, wherein the third supporting ribs 212 are arranged in contact with the bottom surface of the evaporator 6. Since a certain amount of condensed water is also attached to the two side walls of the evaporator 6 in the short side direction of the third installation cavity 21, in order to facilitate the collection of the condensed water, refer to Figure 4 A water collecting trough 213 is provided on both sides of the short side direction of the third installation cavity 21. The water in the water collecting trough 213 flows into the drain port 8 after converging through the third supporting rib 212, and flows out of the vehicle through the drain port 8.

[0036] In some embodiments, in order to improve the condensation water gathering effect in the third installation cavity 21 and facilitate the rapid discharge of the condensation water, the inclination angle of the third slope 211 is greater than or equal to 30° and can be adaptively designed according to actual drainage requirements.

[0037] In some embodiments, to facilitate support for the heater core 4, first support ribs 113 are provided at the bottom of the first mounting cavity 11 for supporting the heater core 4. The first support ribs 113 are 2 mm thick and spaced 8 mm apart along the short side of the first mounting cavity 11. When the heater core 4 is installed, the sponge of the heater core 4 rests against the first support ribs 113 with a 50% deformation. Similarly, to facilitate support for the PTC core 5, second support ribs 123 are provided at the bottom of the second mounting cavity 12 for supporting the PTC core 5.

[0038] In some embodiments, to facilitate setting the inclination angle of the first slope 111, in this embodiment, since less condensed water is generated in the heater cavity 1, the first slope 111 only needs to have a certain inclination angle, which is greater than or equal to 2°. Similarly, the inclination angle of the second slope 121 is greater than or equal to 2°.

[0039] In some embodiments, since the water in the first installation cavity 11 and the second installation cavity 12 converges into the water diversion groove 7 and is discharged through the drain outlet 8, in order to prevent the water in the water diversion groove 7 from adhering to the two side walls in the short side direction of the water diversion groove 7, water diversion slopes 71 are provided on both sides of the short side direction of the water diversion groove 7. Specifically, the inclination angle of the water diversion slope 71 can be greater than or equal to 2°.

[0040] In some embodiments, in order to prevent the gas in the evaporator cavity 2 from entering the heater cavity 1 through the water inlet groove 7, see Figure 3 、 Figure 6 A windproof rib 9 is provided at one end of the water diversion trough 7 near the drain outlet 8.

[0041] The drainage process in the heater cavity 1 and the evaporator cavity 2 of the utility model is as follows: the condensed water in the first installation cavity 11 is gathered to the first notch 112 through the first slope 111, flows into the second notch 122, and then flows through the water diversion groove 7 and is discharged from the drain port 8; the condensed water in the second installation cavity 12 is gathered to the second notch 122 through the second slope 121, and then flows through the water diversion groove 7 and is discharged from the drain port 8; the condensed water in the third installation cavity 21 is gathered at the drain port 8 through the third slope 211 and is discharged.

[0042] In summary, the embodiment of the present invention provides a drainage structure for an air-conditioning box. The bottom of the first installation cavity 11 is provided with first slopes 111 opposite to each other along the long side direction. The two first slopes 111 make the bottom surface of the first installation cavity 11 high at both ends and low in the middle. A first notch 112 is provided at the intersection of the first slopes 111, so that the condensed water in the first installation cavity 11 quickly converges at the first notch 112. At the same time, the bottom of the second installation cavity 12 is provided with second slopes 121 opposite to each other along the long side direction. The two second slopes 121 make the bottom surface of the second installation cavity 12 high at both ends. , and the middle is low. A second notch 122 is provided at the intersection of the two second slopes 121, so that the condensed water in the second installation cavity 12 can quickly gather at the second notch 122, and the first notch 112 is connected with the second notch 122, and the second notch 122 is connected with the water diversion groove 7. The condensed water in the first installation cavity 11 and the second installation cavity 12 is discharged through the drain port 8 connected with the water diversion groove 7. The overall structure is simple, which avoids the condensed water from affecting the heater core 4 or the PTC core 5, ensures the air quality in the vehicle, and avoids affecting the vehicle heating.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. An air conditioning box drainage structure, comprising a heater cavity, an evaporator cavity, and a temperature damper, wherein the temperature damper is used to control the connection and disconnection between the heater cavity and the evaporator cavity, characterized in that: include A first installation cavity is provided in the heater cavity and is used to install the heater core. The bottom of the first installation cavity is provided with first slopes opposite to each other along the long side direction. The two first slopes make the bottom surface of the first installation cavity higher at both ends and lower in the middle. A first notch is provided at the intersection of the two first slopes. A second mounting cavity is provided in the heater cavity for mounting the PTC core. The bottom of the second mounting cavity is provided with second slopes opposite to each other along the long side direction. The two second slopes make the bottom surface of the second mounting cavity higher at both ends and lower in the middle. A second notch is provided at the intersection of the two second slopes. a water diversion trough, provided at the bottom of the second notch, with one end connected to the second notch and the other end connected to a drain outlet connected to the external environment; Among them, the condensed water in the first installation cavity converges to the first notch through the two first slopes, flows through the second notch through the water diversion groove and is discharged to the drain outlet; the condensed water in the second installation cavity converges to the second notch through the two second slopes, flows through the water diversion groove and is discharged to the drain outlet.

2. The drainage structure of the air conditioning box according to claim 1, characterized in that: A third installation cavity is provided in the evaporator cavity, and the third installation cavity is used to install the evaporator. The bottom of the third installation cavity is provided with third slopes opposite to each other along the long side direction. The two third slopes make the bottom surface of the third installation cavity high at both ends and low in the middle. The drainage outlet is opened at the intersection of the two third slopes.

3. The drainage structure of the air conditioning box according to claim 2, characterized in that: The bottom surface of the third installation cavity is staggered with third supporting ribs, and the third supporting ribs are arranged in contact with the bottom surface of the evaporator. Water collecting grooves are provided on both sides of the short side direction of the third installation cavity, and the water in the water collecting grooves flows into the drain outlet after converging through the third supporting ribs.

4. The drainage structure of the air conditioning box according to claim 2, characterized in that: The inclination angle of the third slope is greater than or equal to 30°.

5. The air conditioning box drainage structure according to claim 1, characterized in that: The bottom of the first installation cavity is provided with a first supporting rib for supporting the heater core.

6. The drainage structure of the air conditioning box according to claim 1, characterized in that: The bottom of the second installation cavity is provided with a second supporting rib for supporting the PTC core.

7. The drainage structure of the air conditioning box according to claim 1, characterized in that: The inclination angle of the first slope is greater than or equal to 2°.

8. The drainage structure of the air conditioning box according to claim 1, characterized in that: The inclination angle of the second slope is greater than or equal to 2°.

9. The drainage structure of the air conditioning box according to claim 1, characterized in that: Water guiding slopes are provided on both sides of the short side direction of the water diversion groove.

10. The drainage structure of the air conditioning box according to claim 1, characterized in that: One end of the water diversion trough close to the drain outlet is provided with a windproof rib.

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