CN212604360U - Evaporator and vehicle air conditioner - Google Patents
Evaporator and vehicle air conditioner Download PDFInfo
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- CN212604360U CN212604360U CN202020956882.XU CN202020956882U CN212604360U CN 212604360 U CN212604360 U CN 212604360U CN 202020956882 U CN202020956882 U CN 202020956882U CN 212604360 U CN212604360 U CN 212604360U
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- water chamber
- refrigerant channel
- evaporator
- radiating fins
- flow equalizing
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Abstract
The utility model provides an evaporimeter and vehicle air conditioner, the utility model discloses an evaporimeter includes at least two-layer hydroecium unit, and the hydroecium unit includes hydroecium and lower header to and connect in a plurality of flat pipes between the two, the both sides of flat pipe all are equipped with radiating fin, and radiating fin is established to have at least one in the following mode: a. at least two rows of radiating fins are arranged on each side of the flat tubes of the same layer of water chamber unit, and the radiating fins on each row on the same side are arranged at intervals along the stacking direction of the water chamber unit; b. the radiating fins on each side of the flat tubes cross at least two layers of water chamber units. Evaporimeter, can carry out chooseing for use and the number of piles adjustment of hydroecium unit according to the performance demand, realize same structural design's cross platform and use, the flexibility is high, development and low in management cost.
Description
Technical Field
The utility model relates to a vehicle parts technical field, in particular to evaporimeter. And simultaneously, the utility model discloses still relate to an use vehicle air conditioner who has this evaporimeter.
Background
As one of the important structures of an air conditioner for a vehicle, an evaporator is designed so that a refrigerating performance is a very important index. For the conventional parallel flow double-layer evaporator, the method for improving the refrigeration performance is generally to adjust the size of the core in the vehicle length direction and width direction, or to design a thicker evaporator core to meet higher refrigeration requirements. The first method means that a larger area is occupied, which is not beneficial to the compact design of the air conditioner, and the second method means that once one platform is selected, a set of cores needs to be developed to match with the platform, which is lack of flexibility, and the coexistence of multiple platform products increases the development investment and management cost of enterprises.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to an evaporator to improve the flexibility of application.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an evaporator is provided with at least two layers of water chamber units which are arranged side by side, wherein each water chamber unit comprises an upper water chamber and a lower water chamber which are arranged at intervals, and a plurality of flat pipes connected between the upper water chamber and the lower water chamber, and the flat pipes are arranged at intervals in sequence in a direction orthogonal to the stacking direction of the water chamber units; an upper refrigerant channel is formed in the upper water chamber, a lower refrigerant channel is formed in the lower water chamber, and an intermediate refrigerant channel communicated with the upper refrigerant channel and the lower refrigerant channel is formed in each flat tube; radiating fins are arranged on two sides of each flat tube, and the radiating fins in the evaporator have at least one of the following arrangement modes:
a. at least two rows of radiating fins are arranged on each side of the flat tubes of the water chamber unit on the same layer, and the radiating fins on each row on the same side are arranged at intervals along the laminating direction of the water chamber unit;
b. the radiating fins on each side of the flat tubes span at least two layers of the water chamber units.
Furthermore, adjacent flat pipes of the same layer of water chamber unit share one row of the radiating fins, and each row of the radiating fins is in a wave shape extending along the length direction of the flat pipes.
Further, a partition plate for partitioning the upper refrigerant channel or the lower refrigerant channel is provided in the upper water chamber and/or the lower water chamber.
Furthermore, a partition board slot communicated with the upper refrigerant channel or the lower refrigerant channel is formed in the outer wall of the upper water chamber or the lower water chamber, and the partition board is fixedly connected into the partition board slot in an inserted manner.
Further, a flow equalizing plate is disposed in the upper water chamber and/or the lower water chamber to partially block the refrigerant flowing through the upper refrigerant channel or the lower refrigerant channel.
Furthermore, flow equalizing plate slots communicated with the upper refrigerant channel or the lower refrigerant channel are formed in the outer wall of the upper water chamber or the lower water chamber, and the flow equalizing plates are fixedly connected in the flow equalizing plate slots in an inserted mode.
Further, a partition plate is arranged in the middle of the upper refrigerant channel, the upper refrigerant channel is divided by the partition plate to form a left refrigerant channel and a right refrigerant channel which are positioned on two sides of the partition plate, a flow equalizing plate is arranged in the middle of the left refrigerant channel, a flow equalizing plate is arranged in the middle of the lower refrigerant channel, and a flow equalizing plate is arranged in the middle of the right half of the lower refrigerant channel.
Further, the upper water chamber and/or the lower water chamber of the water chamber unit of the adjacent layer are communicated through the corresponding arrangement of overflowing holes.
Furthermore, the number of the water chamber units is 2-5.
Compared with the prior art, the utility model discloses following advantage has:
(1) the evaporator, through setting up radiating fin to at least one of following two kinds of modes: a. at least two rows of radiating fins are arranged on each side of the flat tubes of the same layer of water chamber unit, and the radiating fins on each row on the same side are arranged at intervals along the stacking direction of the water chamber unit; b. the radiating fins on each side of the flat tube span at least two layers of the water chamber units, and the arrangement of the structure enables the evaporator to select the water chamber units and adjust the number of layers according to performance requirements, so that cross-platform application of the same structural design is realized, the flexibility is high, and the development and management cost is low.
(2) Each row of fins are wavy and extend along the length direction of the flat pipes, and the fins are convenient to process and assemble.
(3) The partition board is arranged in the upper water chamber and/or the lower water chamber so as to control the flow direction of the refrigerant and improve the performance of the evaporator.
(4) The partition board slot is arranged on the upper water chamber or the lower water chamber, and the partition board is installed, so that the processing and the installation are convenient.
(5) Flow equalizing plates are arranged in the upper water chamber and/or the lower water chamber so as to control the flow rate of the refrigerant and improve the performance of the evaporator.
(6) The flow equalizing plate is arranged on the upper water chamber or the lower water chamber, and the flow equalizing plate is installed, so that the processing and the installation are convenient.
(7) The middle part of the upper refrigerant channel is provided with the clapboard, and the middle parts of the left refrigerant channel and the lower refrigerant channel are provided with the flow equalizing plates, so that the flow direction and the flow speed of the refrigerant can be controlled, and the performance of the evaporator can be further improved.
(8) The upper water chamber or the lower water chamber of the adjacent water chamber units are communicated through the corresponding arranged overflowing holes, and the structure is simple.
(9) The number of layers of the water chamber unit is set to be 2-5, so that the water chamber unit is convenient to select and match with an existing thickness platform.
Another object of the present invention is to provide a vehicle air conditioner, which includes the evaporator as described above.
Automobile-used air conditioner and aforementioned evaporimeter have the same beneficial effect for prior art, no longer give unnecessary details here.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram of an evaporator according to a first embodiment of the present invention;
fig. 2 is an exploded view of a water chamber unit according to a first embodiment of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a schematic structural diagram of another evaporator according to a first embodiment of the present invention;
fig. 5 is a schematic structural view of another evaporator according to a first embodiment of the present invention;
fig. 6 is a schematic partial structure diagram of another evaporator according to a first embodiment of the present invention;
fig. 7 is a schematic diagram of the performance of the evaporator according to the first embodiment of the present invention varying with the number of layers;
fig. 8 is a schematic diagram of the pressure drop of the evaporator according to the first embodiment of the present invention varying with the number of layers;
description of reference numerals:
1-water chamber unit, 2-upper water chamber, 3-flat tube, 4-lower water chamber, 5-fin, 6-pipeline, 7-connecting piece, 8-partition plate, 801-partition plate slot, 9-flow equalizing plate, 901-flow equalizing plate slot, 10-blocking cap and 11-overflowing hole.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example one
The embodiment relates to an evaporator, which is provided with at least two layers of water chamber units arranged side by side, wherein each water chamber unit comprises an upper water chamber and a lower water chamber which are arranged at intervals, and a plurality of flat pipes connected between the upper water chamber and the lower water chamber.
Based on the above overall structure description, an exemplary structure of the evaporator of the present embodiment is shown in fig. 1, which is an evaporator formed by arranging three layers of water chamber units 1 side by side, but in a specific application, the number of layers of the water chamber units 1 is preferably 2-5 according to the platform thickness requirement, and may be 5 as shown in fig. 4, besides, the number of layers of the water chamber units 1 may be set to be other number of layers according to the actual requirement. The thickness specification of the water chamber unit 1 does not need to be completely consistent, and can be selected and matched according to the existing thickness platform, and the thickness specification range of the existing automobile evaporator in the current market is usually 30-80 mm.
In order to better understand the evaporator of the present embodiment, the structure of the water chamber unit 1 will be described in detail with reference to fig. 2 and 3. An upper refrigerant passage is formed in the upper water chamber 2 and extends in a length direction of the upper water chamber 2, and more specifically, the upper water chamber 2 is made of a tubular material, and two opposite side surfaces of the upper water chamber 2 are planar, and overflowing holes 11 may be provided on the two side surfaces as needed to facilitate series connection or parallel connection between the adjacent water chamber units 1.
More specifically, the upper water chamber 2 of the water chamber unit 1 of the adjacent layer communicates via the corresponding arrangement of the overflowing holes 11. As shown in fig. 2, a plurality of overflowing holes 11 are formed in the planar side surface on the right side of the upper chamber 2, the plurality of overflowing holes 11 are sequentially arranged at intervals along the length direction of the upper chamber 2, the side surface of the upper chamber 2 adjacent to the water chamber unit 1, which is not shown in the figure, is also provided with the plurality of overflowing holes 11, the overflowing holes 11 in the two upper chambers 2 are in one-to-one correspondence, so that the two planar edges of the two adjacent upper chambers 2 are welded to each other, and the overflowing holes 11 become refrigerant passing holes.
One end of the upper water chamber 2 can be connected with the pipeline 6 through a connecting piece 7, a water inlet and a water outlet are formed on the connecting piece 7, and the other end of the upper water chamber 2 is sealed and plugged with a plugging cap 10. In the structure, the connecting piece 7 is simultaneously provided with the water inlet and the water outlet, so that the two layers of water chamber units 1 are connected with the pipeline 6 through the connecting piece 7.
The inside of the upper water chamber 2 is provided with a partition plate 8 for separating the upper refrigerant channel or the lower refrigerant channel, in a specific installation mode, a partition plate slot 801 communicated with the upper refrigerant channel is constructed on the outer wall of the upper water chamber 2, the partition plate 8 is fixedly connected in the partition plate slot 801 in an inserting manner, and two sides of the partition plate 8 are hermetically connected with the upper water chamber 2 so as to prevent refrigerant liquid from passing through the partition plate 8.
A flow equalizing plate 9 is provided in the upper water chamber 2 to partially block the refrigerant flowing through the upper refrigerant passage, and in a preferred embodiment, the flow equalizing plate 9 has a structure in which a refrigerant passing hole is provided in the middle. In a specific installation manner, a flow equalizing plate slot 901 communicating with an upper refrigerant channel is constructed on the outer wall of the upper water chamber 2, the flow equalizing plate 9 is fixedly connected in the flow equalizing plate slot 901 in an inserting manner, and both sides of the flow equalizing plate 9 are hermetically connected with the upper water chamber 2 to prevent part of the refrigerant from passing through the flow equalizing plate 9.
The structure of the lower water chamber 4 is similar to that of the upper water chamber 2, a lower refrigerant channel is formed in the lower water chamber 4, and the lower water chamber 4 can also be provided with a partition plate 8, a flow equalizing plate 9, an overflowing hole 11 and other structures according to actual needs, and details are not described in this embodiment. However, it should be noted here that the two ends of the lower water chamber 4 are provided with the blocking caps 10. The structure of the two ends of the upper water chamber 2 or the lower water chamber 4 is connected with the pipeline 6 through the connecting piece 7 or sealed through the plugging cap 10 according to actual needs.
In a preferred embodiment, a partition plate 8 is disposed in the middle of the upper refrigerant channel, the upper refrigerant channel is partitioned by the partition plate 8 to form a left refrigerant channel and a right refrigerant channel on both sides of the partition plate 8, a flow equalizing plate 9 is disposed in the middle of the left refrigerant channel, and a flow equalizing plate 9 is disposed in the middle of the lower refrigerant channel, the middle part of the right half part of the lower refrigerant channel is also provided with a flow equalizing plate 9, so that the refrigerant firstly flows in from the left half part of the upper water chamber 2 and then flows downwards into the left half part of the lower refrigerant channel through the flat pipe 3, then flows to the right half part of the lower refrigerant channel rightwards and flows out of the right half part of the upper refrigerant channel upwards, so that the circulation of the refrigerant in the water chamber unit 1 is facilitated, besides, the structure is relatively simple, and besides, the partition plate 8 and the flow equalizing plate 9 can be arranged at other positions according to requirements.
Still referring to fig. 2, the flat tubes 3 are sequentially arranged at intervals in a direction orthogonal to the stacking direction of the water chamber unit 1, the thickness direction of the flat tubes 3 is identical to the length direction of the upper water chamber 2, the width direction of the flat tubes 3 is identical to the stacking direction of the water chamber unit 1, and an intermediate refrigerant channel communicating the upper refrigerant channel and the lower refrigerant channel is formed in each flat tube 3.
As shown in fig. 3, heat dissipation fins 5 are disposed on two sides of each flat tube 3, a row of heat dissipation fins 5 is shared between adjacent flat tubes 3 of the same layer of water chamber unit 1, and each row of heat dissipation fins 5 is in a wave shape extending along the length direction of the flat tube 3. It should be noted that, the two sides of each flat tube 3 are provided with heat dissipation fins 5, and in order to prevent the fins 5 from affecting the picture clarity too much, the heat dissipation fins 5 on the flat tube 3 in the middle portion in fig. 1 and 2 are not shown.
In this embodiment, the heat dissipation fins 5 in the evaporator have at least one of the following arrangements:
a. at least two rows of radiating fins 5 are arranged on each side of the flat tubes 3 of the same water chamber unit 1, and the rows of radiating fins 5 on the same side are arranged at intervals along the stacking direction of the water chamber unit 1, and the specific structure can be seen in fig. 6. The width dimensions of the upper water chamber 2, the lower water chamber 4 and the flat pipes 3 are widened synchronously, which is equivalent to the width dimensions of the existing two-layer water chamber unit 1, and the fins 5 still utilize the same fins 5, so that the overall dimension of the evaporator can be consistent with the dimension of the two-layer water chamber unit 1, but the structure is simple and the assembly is convenient.
b. The heat dissipation fins 5 on each side of the flat tube 3 span at least two layers of water chamber units 1, as shown in an evaporator of the five-layer water chamber unit 1 shown in fig. 4 and an evaporator of the three-layer water chamber unit 1 shown in fig. 5, the widths of the upper water chamber 2, the lower water chamber 4 and the flat tube 3 are inconvenient, and the width direction of the fins 5 spans two layers of water chamber units 1, so that the structure is simple, and the assembly is convenient. Besides, the width of the fin 5 can also span three or other layers of the water chamber units 1 according to requirements, so that the assembly is facilitated.
The evaporator of this embodiment for the selection of hydroecium unit 1 can be carried out according to the performance demand to the evaporator and the number of layers is adjusted, realizes the cross-platform application of same structural design, and the flexibility is high, and development and low in management cost.
The working principle of the evaporator of the embodiment is as follows:
the upper water chamber 2, the lower water chamber 4 and the flat tubes 3 are refrigerant channels, and as the water chamber units 1 are increased, the internal space is increased, the refrigerant flow is increased, and the refrigeration effect is enhanced; the area of the fin 5 is increased, the heat exchange at the air side is enhanced, and the refrigeration effect is enhanced; further, as the number of water chamber units 1 increases, the refrigerant flow path becomes longer, the on-way resistance increases, and the throttle structure in the water chamber increases, increasing the local resistance.
The results of calculating the simulated performance and the change in the refrigerant side pressure drop of the multi-layer evaporator having the same water chamber unit 1 are shown in fig. 7 and 8.
It follows that, based on functional performance considerations: when the number of the water chamber units 1 is increased, the performance and the resistance are not accumulated by single-layer results, the performance amplification is gradually reduced, the pressure drop amplification is increased, and the energy consumption is increased, so that the number of the water chamber units 1 is not recommended to be infinitely increased. And based on weight cost considerations: in the evaporator with the same thickness platform, the more the number of layers of the water chamber is, the larger the weight is, and the higher the cost is, so that under the condition of meeting the functional performance requirement, the superposition of the number of layers is reduced as much as possible, and at the moment, the thicker water chamber unit 1 can be used for replacing a plurality of thinner water chamber units 1. Based on space considerations, the air conditioning cabinet has a limited internal space, and the number of layers of the evaporator water chamber is also not recommended to be increased infinitely.
Example two
The present embodiment relates to a vehicle air conditioner including an evaporator according to the first embodiment. The vehicle air conditioner of the embodiment can realize the universality of parts through the evaporator of the first application embodiment, so that the evaporators of platforms with different thicknesses can be realized through simple adjustment of the number of layers of the water chamber unit 1, the application mode is flexible, and the development cost is low.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An evaporator having at least two layers of water chamber units (1) arranged side by side, characterized in that: the water chamber unit (1) comprises an upper water chamber (2) and a lower water chamber (4) which are arranged at intervals, and a plurality of flat pipes (3) connected between the upper water chamber (2) and the lower water chamber (4), and the flat pipes (3) are sequentially arranged at intervals in a direction orthogonal to the stacking direction of the water chamber unit (1); an upper refrigerant channel is formed in the upper water chamber (2), a lower refrigerant channel is formed in the lower water chamber (4), and an intermediate refrigerant channel communicated with the upper refrigerant channel and the lower refrigerant channel is formed in each flat tube (3); radiating fins (5) are arranged on two sides of each flat tube (3), and the radiating fins (5) in the evaporator are at least one of the following arrangement modes:
a. at least two rows of radiating fins (5) are arranged on each side of the flat tubes (3) of the water chamber unit (1) on the same layer, and the radiating fins (5) on each row on the same side are arranged at intervals along the stacking direction of the water chamber unit (1);
b. the radiating fins (5) on each side of the flat pipes (3) span at least two layers of the water chamber units (1).
2. An evaporator according to claim 1 wherein: the adjacent flat pipes (3) of the same layer of water chamber unit (1) share one row of the radiating fins (5), and each row of the radiating fins (5) are all in a wave shape extending along the length direction of the flat pipes (3).
3. An evaporator according to claim 1 wherein: and a partition plate (8) for separating the upper refrigerant channel or the lower refrigerant channel is arranged in the upper water chamber (2) and/or the lower water chamber (4).
4. An evaporator according to claim 3 wherein: and a partition plate inserting groove (801) communicated with the upper refrigerant channel or the lower refrigerant channel is formed in the outer wall of the upper water chamber (2) or the lower water chamber (4), and the partition plate (8) is fixedly connected in the partition plate inserting groove (801) in an inserting manner.
5. An evaporator according to claim 3 wherein: and a flow equalizing plate (9) which is used for partially blocking the refrigerant flowing through the upper refrigerant channel or the lower refrigerant channel is arranged in the upper water chamber (2) and/or the lower water chamber (4).
6. An evaporator according to claim 5 wherein: a flow equalizing plate slot (901) communicated with the upper refrigerant channel or the lower refrigerant channel is formed in the outer wall of the upper water chamber (2) or the lower water chamber (4), and the flow equalizing plate (9) is fixedly connected in the flow equalizing plate slot (901) in an inserted manner.
7. An evaporator according to claim 5 wherein: a partition plate (8) is arranged in the middle of the upper refrigerant channel, the upper refrigerant channel is divided by the partition plate (8) to form a left refrigerant channel and a right refrigerant channel which are positioned at two sides of the partition plate (8), a flow equalizing plate (9) is arranged in the middle of the left refrigerant channel, the flow equalizing plate (9) is arranged in the middle of the lower refrigerant channel, and the flow equalizing plate (9) is arranged in the middle of the right half of the lower refrigerant channel.
8. An evaporator according to claim 1 wherein: the upper water chamber (2) and/or the lower water chamber (4) of the water chamber units (1) of the adjacent layers are communicated through the corresponding arranged overflowing holes (11).
9. An evaporator according to any one of claims 1 to 8 wherein: the number of layers of the water chamber unit (1) is 2-5.
10. An air conditioner for a vehicle, characterized in that: the vehicle air conditioner comprising the evaporator of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020956882.XU CN212604360U (en) | 2020-05-31 | 2020-05-31 | Evaporator and vehicle air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020956882.XU CN212604360U (en) | 2020-05-31 | 2020-05-31 | Evaporator and vehicle air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212604360U true CN212604360U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020956882.XU Active CN212604360U (en) | 2020-05-31 | 2020-05-31 | Evaporator and vehicle air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212604360U (en) |
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2020
- 2020-05-31 CN CN202020956882.XU patent/CN212604360U/en active Active
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