CN209857727U - Collecting pipe, heat exchanger and air conditioner outdoor unit - Google Patents

Abstract

The utility model discloses a pressure manifold, heat exchanger and air condensing units. The pressure manifold includes: the pipe body is internally provided with an accommodating cavity; the first partition plate is arranged in the accommodating cavity to partition the accommodating cavity into a plurality of shunting cavities, and any two adjacent shunting cavities are not communicated through the first partition plate; the second baffle plate is arranged in one of the flow dividing cavities to limit a plurality of sub-flow dividing cavities, and the second baffle plate is provided with flow dividing holes which penetrate through the second baffle plate in the thickness direction of the second baffle plate. According to the utility model discloses a second baffle that is used for the pressure manifold of heat exchanger, has the reposition of redundant personnel hole through setting up, has not only made things convenient for the reposition of redundant personnel, has simplified the process of reposition of redundant personnel, and the pressure manifold reposition of redundant personnel is simple, and reposition of redundant personnel efficiency improves to some extent moreover, when the pressure manifold uses on the heat exchanger, is favorable to improving the heat exchange efficiency and the heat transfer effect of heat exchanger, helps reduce cost simultaneously.

Description

Collecting pipe, heat exchanger and air conditioner outdoor unit

Technical Field

The utility model belongs to the technical field of air conditioning equipment technique and specifically relates to a pressure manifold, heat exchanger and air condensing units are related to.

Background

The micro-channel heat exchanger has obvious advantages in the aspects of heat exchange efficiency and cost, so that the micro-channel heat exchanger is popularized and applied in the field of air conditioners on a large scale.

In the related technology, the microchannel heat exchanger has large refrigerant flow resistance, low flow dividing efficiency and low heat exchange efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a collecting pipe, which is applicable in a heat exchanger, and improves heat exchange efficiency.

The utility model discloses still provide a heat exchanger including above-mentioned pressure manifold.

The utility model discloses still provide an air condensing units including above-mentioned heat exchanger.

According to the utility model discloses a pressure manifold for heat exchanger, include: the pipe body is internally provided with an accommodating cavity; the first partition plate is arranged in the accommodating cavity to partition the accommodating cavity into a plurality of shunting cavities, and any two adjacent shunting cavities are not communicated through the first partition plate; the second partition plate is arranged in one of the flow dividing cavities to limit a plurality of sub flow dividing cavities, and each second partition plate is provided with a flow dividing hole which penetrates through the second partition plate in the thickness direction of the second partition plate.

According to the utility model discloses a pressure manifold for heat exchanger has the second baffle of reposition of redundant personnel hole through setting up, has not only made things convenient for the reposition of redundant personnel, has simplified the process of reposition of redundant personnel, and the pressure manifold reposition of redundant personnel is simple, and the reposition of redundant personnel efficiency improves to some extent moreover, when the pressure manifold uses on the heat exchanger, is favorable to improving the heat exchange efficiency and the heat transfer effect of heat exchanger, helps reduce cost simultaneously.

According to some embodiments of the invention, the central axes of the splitter holes on at least two of the second baffles are collinear.

According to some embodiments of the present invention, the central axis of the plurality of the branch holes on the second partition plate is collinear.

According to the utility model discloses a some embodiments, every all be equipped with one on the second baffle the diffluence hole, the diffluence hole the second baffle with the central axis collineation of body.

According to some embodiments of the invention, the distance between any two adjacent second baffles is unequal.

According to some embodiments of the invention, the second partition and the first partition are arranged in parallel.

According to some embodiments of the utility model, apart from two farthest in the reposition of redundant personnel chamber, one of them the reposition of redundant personnel chamber is equipped with the refrigerant import, another the reposition of redundant personnel chamber is equipped with the refrigerant export, the refrigerant import is suitable for and links to each other with refrigerant import pipe, the refrigerant export is suitable for and links to each other with the refrigerant outlet pipe.

According to some embodiments of the utility model, be equipped with first fixed block and second fixed block on the periphery wall of body, have in the first fixed block with the first intercommunication chamber of refrigerant import intercommunication, have in the second fixed block with the second intercommunication chamber of refrigerant export intercommunication, refrigerant import pipe passes through first intercommunication chamber with the refrigerant import is linked together, the refrigerant outlet pipe passes through second intercommunication chamber with the refrigerant export is linked together.

According to some embodiments of the invention, the cross-section of the flow distribution hole is formed in a triangular, square, circular or elliptical shape.

The heat exchanger according to the embodiment of the present invention comprises a first collecting pipe, wherein the first collecting pipe is the collecting pipe; the second collecting pipe and the first collecting pipe are arranged at intervals; the heat exchange pipes are arranged at intervals along the length direction of the first collecting pipe, and two ends of each heat exchange pipe are respectively communicated with the first collecting pipe and the second collecting pipe.

According to the utility model discloses heat exchanger, through setting up foretell pressure manifold, heat exchange efficiency is high.

According to some embodiments of the utility model, the one end of heat exchange tube is inserted the body, just stretch into of heat exchange tube the length of the part in the body is d1, the pipe diameter of body is d2, d1 with d2 satisfies: d1 is not more than 1/3d 2.

According to some embodiments of the utility model, the heat exchanger still includes refrigerant import pipe and refrigerant outlet pipe, first pressure manifold has refrigerant import and refrigerant export, refrigerant import pipe with the refrigerant import links to each other, the refrigerant outlet pipe with the refrigerant export links to each other, the refrigerant outlet pipe with the cover is equipped with the sponge cover respectively on the periphery wall of refrigerant import pipe.

According to the utility model discloses air condensing units, include: a housing; according to the heat exchanger, the heat exchanger is arranged in the shell.

According to the utility model discloses air condensing units, through setting up foretell heat exchanger, heat exchange efficiency is high.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of the connection of a header, a refrigerant inlet pipe and a refrigerant outlet pipe according to some embodiments of the present invention;

fig. 2 is a schematic view illustrating connection of the header pipe, the refrigerant inlet pipe, and the refrigerant outlet pipe according to another direction shown in fig. 1;

FIG. 3 is a cross-sectional view taken along the line A-A shown in FIG. 2;

fig. 4 is a schematic view of a manifold according to further embodiments of the present invention;

FIG. 5 is a schematic view of another orientation of the manifold shown in FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along the line B-B in FIG. 5;

fig. 7 is a schematic view of a second header according to some embodiments of the present invention;

FIG. 8 is a schematic view of another orientation of the second header shown in FIG. 7;

FIG. 9 is a schematic cross-sectional view according to the direction C-C shown in FIG. 8;

fig. 10 is a schematic diagram of a heat exchanger according to some embodiments of the present invention;

fig. 11 is a schematic view of an outdoor unit of an air conditioner according to some embodiments of the present invention;

fig. 12 is a schematic view of a manifold according to further embodiments of the present invention.

Reference numerals:

an air conditioner outdoor unit 1000;

a heat exchanger 100; a first header 10; a header pipe 10; a pipe body 1; an accommodating cavity a; a shunting cavity b; a sub-shunt cavity c; a jack d; a refrigerant inlet e; a refrigerant outlet f; a first separator 2; a second separator 3; a diversion hole 31; a first fixing block 4; the first communicating chamber 41; a second fixed block 5; the second communication chamber 5151; a second header 20; a heat exchange pipe 30; a fin 40; a refrigerant inlet pipe 50; a refrigerant outlet pipe 60; a guard plate 70;

a housing 200;

a compressor 300;

a middle separator 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The following describes the header 10, the heat exchanger 100, and the air conditioner outdoor unit 1000 for the heat exchanger 100 according to the embodiment of the present invention with reference to fig. 1 to 12. Specifically, the heat exchanger 100 may be a microchannel heat exchanger 100.

As shown in fig. 3 and 6, the header 10 for the heat exchanger 100 according to the embodiment of the present invention may include a pipe body 1, at least one first partition plate 2, and at least one second partition plate 3. As shown in fig. 3 and 6, a receiving chamber a is formed in the pipe body 1. Specifically, the tube body 1 is formed in a hollow columnar shape, and for example, both ends of a circular tube may be closed with caps to constitute the tube body 1.

As shown in fig. 3, a plurality of insertion holes d adapted to be engaged with the heat exchange tubes 30 are formed in the outer peripheral wall of the tube body 1, the insertion holes d are spaced apart from each other along the length direction of the tube body 1, and when the header 10 is used on the heat exchanger 100, the heat exchange tubes 30 of the heat exchanger 100 may be respectively engaged with the insertion holes d in a one-to-one correspondence manner so that one ends of the heat exchange tubes 30 are inserted into the insertion holes d to connect the heat exchange tubes 30 and the header 10.

The first partition boards 2 are arranged in the accommodating cavities a, when the first partition boards 2 are one, one first partition board 2 is arranged in the accommodating cavity a to divide the accommodating cavity a into two branch cavities b, and when the second partition boards 2 are multiple, the multiple second partition boards 2 are arranged along the length direction of the pipe body 1 at intervals to divide the accommodating cavity a into the multiple branch cavities b. That is, the first partition board 2 is a solid structure, and when the first partition board 2 is disposed in the accommodating cavity a, the accommodating cavity a can be divided into a plurality of branch cavities b, and the plurality of branch cavities b are not communicated through the first partition board 2.

It should be noted that, here, the at least one first separator 2 means that there may be one or more first separators 2, and in the description of the present invention, "a plurality" means two or more.

When the first partition board 2 is one, the two sides of the first partition board 2 are respectively provided with the insertion holes d. When the first partition boards 2 are plural, at least one insertion hole d is respectively arranged between any two adjacent first partition boards 2, and insertion holes d are respectively arranged on two sides of any first partition board 2. So that the purpose of shunting is achieved by providing the first partition 2 to separate the receptacles d. It is understood that the number and the interval of the insertion holes d separated by the first barrier 2 may be determined according to the size of the heat exchanger 100 and the flow rate of the refrigerant required for the actual refrigeration cycle.

The number of the second separators 3 may be one (as shown in fig. 12) or plural. As shown in fig. 12, when there is one second partition plate 3, one second partition plate 3 is disposed in one of the branch chambers b to define two sub-branch chambers c, and when there are a plurality of second partition plates 3, a plurality of second partition plates 3 are disposed in one of the branch chambers b and spaced apart from each other along the length direction of the pipe body 1 to define a plurality of sub-branch chambers c, and each second partition plate 3 is provided with a branch hole 31 penetrating the second partition plate 3 in the thickness direction of the second partition plate 3 to allow the plurality of sub-branch chambers c to be communicated through the branch hole 31, specifically, there is at least one insertion hole d between two adjacent second partition plates 3.

Specifically, for example, as shown in fig. 3, two first partition plates 2 are provided in the pipe body 1, the two first partition plates 2 are spaced apart in the length direction of the pipe body 1 to define three branch chambers b, three second partition plates 3 are provided in one of the branch chambers b (the lowermost branch chamber b shown in fig. 3) adjacent to the end of the pipe body 1, the three second partition plates 3 are spaced apart in the length direction of the pipe body 1 to define four sub-branch chambers c, and a branch hole 31 penetrating in the thickness direction of each second partition plate 3 is provided so that the four sub-branch chambers c are communicated through the branch hole 31.

When the collecting pipe 10 is used in the heat exchanger 100, the refrigerant is shunted through the shunting holes 31 of the built-in second partition plate 3 of the collecting pipe 10, the shunting efficiency is improved, the flow resistance of the refrigerant is reduced, the flow velocity of the refrigerant is increased, the heat transfer efficiency of the refrigerant side is improved, the heat exchange efficiency of the whole heat exchanger 100 is further improved, the requirement of high energy efficiency of an air conditioner can be realized, the market requirement is met, the problem that the size of the heat exchanger 100 is increased due to the fact that the heat exchange area is increased for realizing high energy efficiency is solved, the problems of weight increase, large size of a shell 200 of the heat exchanger 100 and cost increase are solved, and the purposes of high economic benefit and high performance are.

That is to say, through setting up second baffle 3 that has reposition of redundant personnel hole 31, not only made things convenient for the reposition of redundant personnel, simplified the process of reposition of redundant personnel, pressure manifold 10 reposition of redundant personnel is simple, and reposition of redundant personnel efficiency improves to some extent moreover, when pressure manifold 10 uses on heat exchanger 100, is favorable to improving heat exchange efficiency and the heat transfer effect of heat exchanger 100, helps reduce cost simultaneously.

According to the utility model discloses a second baffle 3 that is used for pressure manifold 10 of heat exchanger 100 has diffluence hole 31 through the setting, has not only made things convenient for the reposition of redundant personnel, has simplified the process of reposition of redundant personnel, and pressure manifold 10 reposition of redundant personnel is simple, and reposition of redundant personnel efficiency improves to some extent moreover, when pressure manifold 10 uses on heat exchanger 100, is favorable to improving heat exchange efficiency and the heat transfer effect of heat exchanger 100, helps reduce cost simultaneously.

In some embodiments of the present invention, the number of the diversion holes 31 on the second partition board 3 may be one or more. The number and shape of the diversion holes 31 on different second partition plates 3 can be the same or different.

Optionally, the central axes of the diversion holes 31 on at least two second baffles 3 are collinear. That is, the number of the diversion holes 31 on the at least two second partition plates 3 is the same, and when the number of the diversion holes 31 on the at least two second partition plates 3 is one, the central axes of the diversion holes 31 on the at least two second partition plates 3 are collinear; when the number of the diversion holes 31 on the at least two second partition plates 3 is multiple, the diversion holes 31 on the at least two second partition plates are in one-to-one correspondence, and the central axes of the corresponding diversion holes 31 are collinear. Therefore, the structure is simple, the shunt path is shortened, and the shunt effect is improved.

Further, as shown in fig. 3 and 6, the central axes of the branch holes 31 of the plurality of second partition plates 3 are collinear. That is, the number of the diversion holes 31 on the second partition plates 3 is the same, and when the number of the diversion holes 31 on each second partition plate 3 is one, the central axes of the diversion holes 31 on the second partition plates 3 are collinear; when the number of the diversion holes 31 on each second partition plate 3 is multiple, the diversion holes 31 on multiple second partition plates are in one-to-one correspondence, and the central axes of the corresponding diversion holes 31 are collinear. Therefore, the flow dividing effect is further improved.

In some embodiments of the present invention, each second partition board 3 is provided with a diversion hole 31, and the diversion hole 31 is collinear with the central axis of the corresponding second partition board 3. That is, each second partition plate 3 is provided with one diversion hole 31, the diversion hole 31 is located at the center position of the second partition plate 3 having the diversion hole 31, and the central axis of the diversion hole 31 is collinear with the central axis of the second partition plate 3. Here, it is understood that the central axes of the plurality of second partition plates 3 may be non-collinear or collinear, and when the central axes of the plurality of second partition plates 3 are collinear, the central axes of all the second partition plates and all the branch flow holes 31 are collinear. Therefore, the flow dividing effect is further improved, and the heat exchange efficiency of the heat exchanger is improved.

Optionally, each second partition plate 3 is provided with one diversion hole 31, and a plurality of second partition plates 3, a plurality of diversion holes 31 and the central axis of the pipe body 1 are collinear. Thus, the structure is simple.

In some embodiments of the present invention, the cross section of the diversion hole 31 is formed in a triangular shape, a square shape, an oval shape, a circular shape, or the like. Therefore, the structure is simple, and the processing and the manufacturing are convenient. Of course, it is understood that the diversion holes 31 can also be formed in other shapes, such as a polygon, as long as machining and manufacturing are facilitated.

In some embodiments of the present invention, the cross section of the diversion hole 31 has an area S, which can be adjusted according to the flow rate of the refrigerant of the heat exchanger 100. Specifically, Q is VS, where V represents a flow velocity of the refrigerant in the heat exchange tube 30, S is a cross-sectional area of the through hole, Q represents a flow rate of the refrigerant flowing through the heat exchange tube 30 per unit time, and Q is m³The unit of V is m/S, and the unit of S is square meter. This is advantageous in order to further optimize the design of the header 10 for matching with different heat exchangers 100. Of course, it will be appreciated that the cross-sectional area of shunt hole 31 may be further definedThe pipe diameter of the header 10 and the size of the heat exchanger 100 are adjusted.

In some embodiments of the present invention, the second partition plate 3 and the first partition plate 2 are disposed in parallel, so that the structure is simple, and the processing and manufacturing of the collecting pipe 10 are facilitated.

In some optional embodiments of the present invention, the distance between any two adjacent second partition plates 3 is not equal. That is, the number of the above-described insertion holes d provided between any adjacent two of the second separators 3 is different. Thus, when the header 10 is used in the heat exchanger 100, it is more advantageous to adapt to different heat exchanger 100 configurations. It is understood that the distance between the adjacent second partition plates 3 may be determined according to the distribution of the refrigerant flow path.

Alternatively, in other embodiments, the distance between any two adjacent second partition plates 3 is equal, that is, the number of the insertion holes d between any two adjacent second partition plates 3 is the same. Therefore, the structure is simple, and the processing and the manufacturing of the collecting pipe 10 are convenient.

In some embodiments of the present invention, the material of the pipe body 1, the first partition board 2 and the second partition board 3 is the same. For example, the pipe body 1, the first partition plate 2 and the second partition plate 3 are made of copper or stainless steel.

In some optional embodiments of the present invention, as shown in fig. 1-3, one of the two farthest branch chambers b is provided with a refrigerant inlet e, and the other branch chamber b is provided with a refrigerant outlet f, where the refrigerant inlet e is adapted to be connected to the refrigerant inlet pipe 50, and the refrigerant outlet f is adapted to be connected to the refrigerant outlet pipe 60. Thus, when the header 10 is used in the heat exchanger 100, the refrigerant may enter the first branch chamber from the refrigerant inlet pipe 50 through the refrigerant inlet e, flow into the second header 20 described below through the heat exchange tubes 30 correspondingly communicating with the first branch chamber, and finally converge into the second branch chamber b, and flow out of the heat exchanger 100 from the second branch chamber through the refrigerant outlet f and the refrigerant outlet pipe 60.

Alternatively, the branch chamber b having the second barrier 3 is connected to the refrigerant inlet pipe 50 or the refrigerant outlet pipe 60. Further, as shown in fig. 3, the refrigerant inlet pipe 50 or the refrigerant outlet pipe 60 is positioned between the two second separators 3.

Specifically, for example, as shown in fig. 3, there are two first partition plates 2, three second partition plates 3, and the second partition plates 3 are provided in the lowermost distribution chamber b, the refrigerant outlet f is located on the outer peripheral wall of the lowermost distribution chamber b and between two adjacent second partition plates 3, the refrigerant outlet pipe 60 is connected to the refrigerant outlet f, the refrigerant inlet e is located on the outer peripheral wall of the uppermost distribution chamber b, and the refrigerant inlet pipe 50 is connected to the refrigerant inlet e.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In some embodiments of the present invention, as shown in fig. 3, a first fixing block 4 and a second fixing block 5 are disposed on the outer peripheral wall of the pipe body 1, a first communicating cavity 41 communicating with the refrigerant inlet e is disposed in the first fixing block 4, a second communicating cavity 51 communicating with the refrigerant outlet f is disposed in the second fixing block 5, the first fixing block 4 is connected to the refrigerant inlet pipe 50, the second fixing block 5 is connected to the refrigerant outlet pipe 60, the refrigerant inlet pipe 50 is connected to the refrigerant inlet e through the first communicating cavity 41, and the refrigerant outlet pipe 60 is connected to the refrigerant outlet f through the second communicating cavity 51. Therefore, the first fixing block 4 and the second fixing block 5 are arranged, so that the connection of the collecting pipe 10 and the refrigerant outlet pipe 60 and the refrigerant inlet pipe 50 is facilitated, and the damage to the pipe body 1 caused by the direct connection of the refrigerant outlet pipe 60 and the refrigerant inlet pipe 50 with the pipe body 1 can be avoided by arranging the first fixing block 4 and the second fixing block 5 due to the fact that the wall thickness of the pipe body 1 is thin.

Alternatively, the refrigerant inlet pipe 50 and the first fixing block 4 and the refrigerant outlet pipe 60 and the second fixing block 5 may be connected by welding.

As shown in fig. 10, a heat exchanger 100 according to an embodiment of the present invention may include a first header 10, a second header 20, and a plurality of heat exchange tubes 30. The first header 10 is the header 10 in the above embodiment.

The first collecting pipe 10 and the second collecting pipe 20 are arranged at intervals, for example, the first collecting pipe 10 and the second collecting pipe 20 can be arranged at intervals in parallel, a plurality of heat exchange pipes 30 are arranged at intervals along the length direction of the first collecting pipe 10, and two ends of each heat exchange pipe 30 are respectively communicated with the first collecting pipe 10 and the second collecting pipe 20.

Specifically, as shown in fig. 10 and 11, the heat exchanger 100 further includes a plurality of fins 40 and a protective plate 70, the plurality of fins 40 are spaced apart along the length direction of the heat exchange tube 30, each fin 40 has a plurality of clamping grooves spaced apart along the length direction thereof, and the plurality of clamping grooves are clamped with the plurality of heat exchange tubes 30 in a one-to-one correspondence manner, so that the heat exchange efficiency of the heat exchanger 100 is improved. The two protection plates 70 are respectively arranged at two ends of the fins 40 in the length direction, and each protection plate 70 is connected with the end surface of each fin 40 in the length direction, so that the strength among the fins 40 is improved, and the fins 40 are prevented from being rewound. According to the utility model discloses heat exchanger 100 through setting up guard plate 70, in heat exchanger 100 production process and transportation, through guard plate 70's guard action, is favorable to the fin 40 fall piece that prevents to guarantee that fin 40 smoothly drains, be favorable to improving heat exchange efficiency of heat exchanger 100, simultaneously, be favorable to guaranteeing the reliability of heat exchanger 100 work.

According to the utility model discloses heat exchanger 100 through setting up foretell pressure manifold 10, has not only made things convenient for the reposition of redundant personnel, has simplified the process of reposition of redundant personnel, and pressure manifold 10 reposition of redundant personnel is simple, and reposition of redundant personnel efficiency improves to some extent moreover, when pressure manifold 10 uses on heat exchanger 100, is favorable to improving heat exchange efficiency and the heat transfer effect of heat exchanger 100, helps reduce cost simultaneously.

In some optional embodiments of the present invention, the one end of the heat exchange pipe 30 is inserted into the pipe body 1 (the pipe body 1 is inserted through the insertion hole d mentioned above), and the length of the portion of the heat exchange pipe 30 extending into the pipe body 1 is d1, the pipe diameter of the pipe body 1 is d2, d1 and d2 satisfy: d1 is not more than 1/3d 2. Therefore, the reliability of the connection between the heat exchange tube 30 and the first collecting pipe 10 is ensured, and the situation that the space occupied by the tube body 1 due to the fact that the heat exchange tube 30 is inserted into the tube body 1 too deeply is not beneficial to smooth circulation of the refrigerant is avoided.

In some optional embodiments of the present invention, the other end of the heat exchange tube 30 is inserted into the second collecting pipe 20, and the length of the part of the heat exchange tube extending into the second collecting pipe 20 is m1, the tube diameter of the second collecting pipe 20 is m2, m1 and m2 satisfy: m1 is not more than 1/3m 2. Therefore, the reliability of the connection between the heat exchange tube 30 and the second collecting pipe 20 is ensured, and the situation that the space occupied by the heat exchange tube 30 inserted into the second collecting pipe 20 is too deep to facilitate the smooth circulation of the refrigerant is avoided.

In some embodiments of the present invention, the heat exchanger 100 includes a refrigerant inlet pipe 50 and a refrigerant outlet pipe 60. Specifically, as shown in fig. 1 to 3, the refrigerant inlet pipe 50 and the refrigerant outlet pipe 60 are connected to the first collecting pipe 10, but not connected to the second collecting pipe 20, that is, the first collecting pipe 10 has a refrigerant inlet e and a refrigerant outlet f, the refrigerant inlet pipe 50 is connected to the refrigerant inlet e, and the refrigerant outlet pipe 60 is connected to the refrigerant outlet f. Thereby facilitating the connection of the heat exchanger 100 to the refrigerant flow path of the outdoor unit 1000.

Alternatively, as shown in fig. 7 to 9, the refrigerant inlet pipe 50 and the refrigerant outlet pipe 60 are connected to the second collecting pipe 20 at the same time, but are not connected to the first collecting pipe 10, that is, the second collecting pipe 20 has a refrigerant inlet e and a refrigerant outlet f, the refrigerant inlet pipe 50 is connected to the refrigerant inlet e, and the refrigerant outlet pipe 60 is connected to the refrigerant outlet f. Thereby facilitating the connection of the heat exchanger 100 to the refrigerant flow path of the outdoor unit 1000.

Alternatively, one of the first collecting pipe 10 and the second collecting pipe 20 is provided with a refrigerant inlet e, the other is provided with a refrigerant outlet f, the refrigerant inlet pipe 50 is connected with the refrigerant inlet e, and the refrigerant outlet pipe 60 is connected with the refrigerant outlet f. Thereby facilitating the connection of the heat exchanger 100 to the refrigerant flow path of the outdoor unit 1000.

In some further embodiments of the present invention, the outer peripheral walls of the refrigerant inlet pipe 50 and the refrigerant outlet pipe 60 are respectively sleeved with a sponge sleeve. Specifically, when the heat exchanger 100 is assembled to the outdoor unit 1000, the casing 200 of the outdoor unit 1000 is generally provided with a middle partition 400 to partition a space in the casing 200 into a compressor cavity and a fan cavity, the heat exchanger 100 is disposed in the fan cavity, and the compressor 300 is disposed in the compressor cavity, in order to facilitate the connection of the refrigerant inlet pipe 50 and the refrigerant outlet pipe 60 to the compressor 300, the refrigerant inlet pipe 50 and the refrigerant outlet pipe 60 generally need to pass through the middle partition 400 or pass through a side plate connected to the middle partition 400, and a sponge sleeve is sleeved on the outer peripheral walls of the refrigerant outlet pipe 60 and the refrigerant inlet pipe 50, so as to facilitate the improvement of the protection effect on the refrigerant inlet pipe 50 and the refrigerant outlet pipe 60, prevent the refrigerant inlet pipe 50 and the refrigerant outlet pipe 60 from being cut by the middle partition or the side plate, and improve the reliability of the operation of the. Meanwhile, the sponge sleeve can also play a role in heat insulation, and heat loss is avoided to a certain extent.

The utility model discloses an in some examples, be equipped with two setting elements on the periphery wall of guard plate 70, two setting elements are close to the length direction's of guard plate 70 both ends setting respectively, and every setting element is suitable for to be located between two adjacent fins 40 with prepositioning guard plate 70, and setting element and guard plate 70 are integrated into one piece, and the setting element passes through stamping process and processes out, from this, not only is favorable to simplifying production technology, and reduction in production cost still can improve the joint strength between setting element and the guard plate 70.

In some embodiments of the present invention, the protection plate 70 is formed as a hollow flat tube. Thus, the weight of the shield plate 70 is favorably reduced, thereby contributing to cost reduction. Optionally, the whole thickness of the flat pipe can be 2-3mm, and the wall thickness of the flat pipe is not less than 0.2 mm. For example, the overall thickness of the flat tubes may be 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, or 3mm, and the wall thickness of the flat tubes may be 0.2mm, 0.22mm, 0.24mm, 0.26mm, or 0.28 mm.

Optionally, a stiffener 51 is provided within the hollow shield 70. Thereby, it is advantageous to enhance the structural strength of the guard plate 70.

In some alternative embodiments of the present invention, at least a portion of the upper surface of the guard plate 70 is recessed downward to define a water chute. Therefore, condensed water on the fins 40 can be conveniently discharged, particularly, when the protection plate 70 is positioned at the lower end face of the heat exchanger 100, the heat exchanger 100 frosts under the low-temperature heating working condition, small drops of condensed water on the surfaces of the fins 40 flow down along the side edges of the fins 40 under the dual action of self gravity and wind direction, and flow to the water guide groove on the upper surface of the protection plate 70 to be discharged from the heat exchanger 100, so that frosting at the bottom of the heat exchanger 100 is improved, and the heat exchange efficiency of the heat exchanger 100 is improved. Is beneficial to improving the frosting and defrosting of the lower end surface of the heat exchanger 100. For example, the water guide grooves are formed in plural, extend in the width direction of the guard plate 70, and are arranged at intervals in the length direction of the guard plate 70, and it can be understood that the more the number of the water guide grooves, the better the drainage effect will be, but the cost will be increased to some extent.

Alternatively, the side wall of the gutter has a drain opening, and the inner bottom wall of the gutter is formed as a slope extending obliquely downward in a direction toward the drain opening. Therefore, under the action of gravity, the condensed water in the water guide groove is guided to the water outlet under the guiding action of the inner bottom wall of the water guide groove, so that the water guide action of the water guide groove is further enhanced, and the heat exchange performance of the heat exchanger 100 is further improved.

Of course, the present invention is not limited thereto, and in other embodiments, the water guide groove may be formed in a ring shape and extend in the entire circumferential direction of the shielding plate 70.

In some further embodiments of the present invention, at least one end of the length direction of the protection plate 70 is provided with an avoiding surface, and the avoiding surface is recessed toward a direction near the center of the protection plate 70. In other words, one end of the protection plate 70 is provided with an avoidance surface, and the avoidance surface is recessed toward a direction close to the center of the protection plate 70, or both ends of the protection plate 70 are provided with avoidance surfaces, and the avoidance surfaces are recessed toward a direction close to the center of the protection plate 70. Therefore, the protective plate 70 is prevented from colliding with the first collecting pipe 10 and/or the second collecting pipe 20.

The utility model discloses an in some embodiments, heat exchange tube 30 is flat pipe, has a plurality of refrigerant circulation passageways in the heat exchange tube 30. Thereby, further heat exchange efficiency of the heat exchanger 100 is facilitated.

The outdoor unit 1000 of the present invention includes the heat exchanger 100, the casing 200, and the compressor 300.

According to the utility model discloses air condensing units 1000 through setting up foretell heat exchanger 100, has not only made things convenient for the reposition of redundant personnel, has simplified the process of reposition of redundant personnel, and the pressure manifold 10 reposition of redundant personnel is simple, and reposition of redundant personnel efficiency improves to some extent moreover, when pressure manifold 10 uses on heat exchanger 100, is favorable to improving heat exchange efficiency and the heat transfer effect of heat exchanger 100, helps reduce cost simultaneously.

Other configurations of the outdoor unit 1000 of the air conditioner according to the embodiment of the present invention, such as the compressor 300 and the throttling element, and the like, and operations thereof are known to those skilled in the art, and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. A header for a heat exchanger, comprising:

the pipe body is internally provided with an accommodating cavity;

the first partition plate is arranged in the accommodating cavity to partition the accommodating cavity into a plurality of shunting cavities, and any two adjacent shunting cavities are not communicated through the first partition plate;

the second partition plate is arranged in one of the flow dividing cavities to limit a plurality of sub-flow dividing cavities, and a flow dividing hole penetrating through the second partition plate in the thickness direction of the second partition plate is formed in the second partition plate.

2. Header for a heat exchanger according to claim 1, wherein the central axes of said branch holes in at least two of said second baffles are collinear.

3. Header for a heat exchanger according to claim 1, wherein central axes of said branch holes in a plurality of said second partitions are collinear.

4. A header for a heat exchanger according to claim 1, wherein each of said second baffles is provided with one of said plurality of branch holes, and said branch holes, said second baffles and said central axis of said tube are collinear.

5. A header for a heat exchanger according to claim 1, wherein a pitch between any adjacent two of said second partitions is unequal.

6. Header for a heat exchanger according to claim 1, wherein said second partition and said first partition are arranged in parallel.

7. Header pipe for a heat exchanger according to claim 1, wherein one of the two farthest-apart branch chambers is provided with a refrigerant inlet, and the other branch chamber is provided with a refrigerant outlet, the refrigerant inlet being adapted to be connected to a refrigerant inlet pipe, and the refrigerant outlet being adapted to be connected to a refrigerant outlet pipe).

8. A header pipe for a heat exchanger according to claim 7, wherein a first fixing block and a second fixing block are provided on an outer peripheral wall of the pipe body, the first fixing block has a first communicating chamber therein communicating with the refrigerant inlet, the second fixing block has a second communicating chamber therein communicating with the refrigerant outlet, the refrigerant inlet pipe communicates with the refrigerant inlet through the first communicating chamber, and the refrigerant outlet pipe communicates with the refrigerant outlet through the second communicating chamber.

9. Header for a heat exchanger according to claim 1, wherein the cross-section of the flow dividing hole is formed in a triangular, square, circular or elliptical shape.

10. A heat exchanger, comprising:

-a first header according to any of claims 1 to 9;

the second collecting pipe and the first collecting pipe are arranged at intervals;

the heat exchange pipes are arranged at intervals along the length direction of the first collecting pipe, and two ends of each heat exchange pipe are respectively communicated with the first collecting pipe and the second collecting pipe.

11. The heat exchanger as claimed in claim 10, wherein one end of the heat exchange tube is inserted into the tube body, and the length of the portion of the heat exchange tube protruding into the tube body is d1, the tube body has a tube diameter of d2, and the d1 and the d2 satisfy: d1 is not more than 1/3d 2.

12. The heat exchanger according to claim 10, further comprising a refrigerant inlet pipe and a refrigerant outlet pipe, wherein the first collecting pipe has a refrigerant inlet and a refrigerant outlet, the refrigerant inlet pipe is connected to the refrigerant inlet, the refrigerant outlet pipe is connected to the refrigerant outlet, and the outer peripheral walls of the refrigerant outlet pipe and the refrigerant inlet pipe are respectively sleeved with a sponge sleeve.

13. An outdoor unit of an air conditioner, comprising:

a housing;

the heat exchanger according to any one of claims 10-12, provided within the housing.