CN210373783U

CN210373783U - Machine and air conditioner in self sealss heat exchanger, air conditioning

Info

Publication number: CN210373783U
Application number: CN201921303166.5U
Authority: CN
Inventors: 白景辉; 刘秋华; 薛琴; 黄树经; 许硕; 曾文轩
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-04-21
Anticipated expiration: 2029-08-12

Abstract

The utility model provides a machine and air conditioner in self sealss heat exchanger, air conditioning, self sealss heat exchanger includes: the novel solar heat collector comprises an evaporator second section (2) and an evaporator third section (3), the evaporator second section (2) and the evaporator third section (3) are completely cut at the connecting position of the evaporator second section and the evaporator third section (3), then the evaporator second section and the evaporator third section are bent, the evaporator third section (3) comprises a third inner side edge (31) located on the inner side of the bend, the evaporator second section (2) comprises a second inner side edge (21) located on the inner side of the bend, part of the structure of the third inner side edge (31) is inserted into the second inner side edge (21), or part of the structure of the second inner side edge (21) is inserted into the third inner side edge (31). Through the utility model discloses can prevent or reduce this position and produce the wind and leak, improve the heat exchange efficiency of evaporimeter, and the noise reduces, cost reduction, and the process is simple, can also be to indoor formation shower formula refrigeration effect and prevent the hidden danger of dripping.

Description

Machine and air conditioner in self sealss heat exchanger, air conditioning

Technical Field

The utility model belongs to the technical field of the air conditioner, concretely relates to machine and air conditioner in self sealss heat exchanger, air conditioning.

Background

In the traditional refrigeration industry, the evaporator sheet of the indoor unit is in an inverted V shape, and the air outlet is inclined downwards, so that when cold air is blown downwards, the air supply range is very small, and the space above the air outlet cannot be effectively refrigerated. In addition, the part between the two bending sections of the evaporator is easy to generate wind leakage, so that air which is not subjected to heat exchange of the evaporator is blown out through the air outlet, the heat exchange efficiency of the evaporator is greatly influenced, and the indoor refrigerating or heating comfort level is reduced; in the existing structure, structures such as sealing plaster, stainless steel buckles and the like are adopted to seal the position, but the sealing effect is poor, the noise is increased, the cost is increased, the working procedure is complex, and the energy efficiency is reduced; and refrigeration condensation is easy to generate between the other two bending sections of the evaporator, so that the hidden danger of water dripping is caused.

Because the indoor evaporator of the air conditioner in the prior art has the position between the two bending sections, the leakage of wind is easy to generate, so that the air which is not subjected to heat exchange of the evaporator is blown out through the air outlet, and the heat exchange efficiency of the evaporator is greatly influenced; the air inlet of the inverted-V-shaped evaporator is obliquely discharged downwards, so that when cold air is blown downwards, the air supply range is very small, and the space above the air outlet cannot be effectively refrigerated; produce the refrigeration condensation easily between the section of other two bendings of evaporimeter, and produce technical problem such as the hidden danger of dripping, consequently the utility model discloses research and design a self sealss heat exchanger, indoor set and air conditioner.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the leakage that the position that the indoor evaporimeter of the air conditioner among the prior art exists between the two sections of bending produces the wind easily, leads to not blowing off via the air outlet through the air of evaporimeter heat transfer, and has greatly influenced the defect of the heat exchange efficiency of evaporimeter to a self sealss heat exchanger, air conditioning indoor set and air conditioner are provided.

The utility model provides a self sealss heat exchanger, it includes:

the evaporator comprises an evaporator second section and an evaporator third section, the evaporator second section and the evaporator third section are completely cut at the connecting part of the evaporator second section and the evaporator third section, then the evaporator second section and the evaporator third section are mutually bent, the evaporator third section comprises a third inner side edge positioned at the inner side of the bend, the evaporator second section comprises a second inner side edge positioned at the inner side of the bend, part of the structure of the third inner side edge is inserted into the second inner side edge, or part of the structure of the second inner side edge is inserted into the third inner side edge.

Preferably, the first and second electrodes are formed of a metal,

the evaporator second section comprises a second bottom edge positioned at the lowermost end of the evaporator third section, the evaporator third section comprises a third bottom edge positioned at the lowermost end of the evaporator third section, the third bottom edge comprises a third cut edge left after being cut, and the third cut edge is inserted into the inner part between the second bottom edge and the second inner side edge;

or,

the evaporator second section comprises a second bottom edge positioned at the lowest end of the evaporator third section, the evaporator third section comprises a third bottom edge positioned at the lowest end of the evaporator third section, the second bottom edge comprises a second cut edge left after being cut, and the second cut edge is inserted into the inner portion between the third bottom edge and the third inner side edge.

Preferably, the first and second electrodes are formed of a metal,

the evaporator second section includes a second top edge at an uppermost end thereof, the evaporator third section includes a third top edge at an uppermost end thereof, the third top edge includes a fourth cut edge left by the cut, and the fourth cut edge is inserted into an interior between the second top edge and the second inner side edge.

Or,

the evaporator second section includes a second top edge at an uppermost end thereof, the evaporator third section includes a third top edge at an uppermost end thereof, the second top edge includes a fifth cut edge left by the cut, and the fifth cut edge is inserted into an interior between the third top edge and the third inner side edge.

Preferably, the first and second electrodes are formed of a metal,

the second inner side edge and the third inner side edge are intersected at a point O, a bottom dead center or a top dead center of the third inner side edge is P, the distance between the point P and the point O is self-sealing interference amount, and the range of the self-sealing interference amount is 0.5mm-1.2 mm.

Preferably, the first and second electrodes are formed of a metal,

the second inner side edge and the third inner side edge are intersected at a point O, the second evaporator section comprises a second bottom edge positioned at the lowermost end of the second evaporator section, the third evaporator section comprises a third bottom edge positioned at the lowermost end of the third evaporator section, and the second bottom edge and the third bottom edge are intersected and form a point Q; or, the evaporator two-stage section comprises a second top edge at the uppermost end thereof, the evaporator three-stage section comprises a third top edge at the uppermost end thereof, and the second top edge and the third top edge intersect at a point Q;

and the distance between point Q and point O is the self-sealing interference range, which is greater than or equal to 20 mm.

Preferably, the first and second electrodes are formed of a metal,

the evaporator second section and the evaporator third section are bent mutually to form a V-shaped structure, and the opening of the V shape is arranged upwards; and/or the self-sealing heat exchanger comprises a heat exchange tube, fins and an evaporator side plate; and/or the self-sealing heat exchanger is an evaporator.

Preferably, the first and second electrodes are formed of a metal,

after the second evaporator section and the third evaporator section are bent, the second inner side edge and the third inner side edge are oppositely arranged; and/or the evaporator further comprises an evaporator section, and the evaporator section is connected with one end, far away from the evaporator section, of the evaporator section.

Preferably, the first and second electrodes are formed of a metal,

the evaporator section comprises a first inner side edge positioned on the inner side of the bent section and a first outer side edge positioned on the outer side of the bent section, and the first outer side edge is cut at the bent position.

Preferably, the first and second electrodes are formed of a metal,

after the first outer side edge is cut at the bent part, the end point of the farthest end of the first outer side edge in the direction departing from the first inner side edge along the horizontal direction is M, the end point of the farthest end of the second outer side edge in the direction departing from the second inner side edge along the horizontal direction is N, the distance between the end point M and the end point N in the horizontal direction is MN, and MN is more than or equal to 5 mm.

The utility model also provides an indoor unit of air conditioner, it includes preceding arbitrary self sealss heat exchanger, still including being located the evaporimeter two-stage process with the inboard fan of buckling each other of evaporimeter three-stage process.

The utility model also provides an air conditioner, it includes preceding arbitrary self sealss heat exchanger or aforementioned machine in the air conditioning.

The utility model provides a pair of machine and air conditioner have following beneficial effect in self sealss heat exchanger, the air conditioning:

1. the utility model discloses a cut the position of originally connecting evaporimeter two-stage process and evaporimeter three-section, buckle the two again, and finally insert the inboard side of second inside with the inboard side part of third, or insert the inboard side of third inside with the inboard side part of second, can make and form great interference between the bottom of evaporimeter two-stage process and evaporimeter three-section (when positive V font is put, the V mouth is up), or make and form great interference between the top of evaporimeter two-stage process and evaporimeter three-section (when the font of falling V is put, the V mouth is down), thereby form effectual reliable sealed to the position that evaporimeter two-stage process and evaporimeter three-section meet, prevent or greatly reduce this position and produce the wind leakage, prevent that the air that does not pass through the evaporimeter heat transfer from blowing out via the air outlet, the heat exchange efficiency of evaporimeter has been improved, and compare current adoption sealing cement gum, For sealing by structures such as stainless steel buckles and the like, the sealing effect is better, the noise is reduced, the cost is reduced, and the working procedure is simple;

2. the utility model also forms a V-shaped structure after bending the evaporator second section and the evaporator third section, and the opening of the V-shaped structure is arranged upwards, so that the air inlet of the indoor unit of the air conditioner is arranged below, the air outlet is arranged above, and the air after heat exchange is blown out from the air outlet at the upper part, thus forming shower type refrigeration effect indoors and greatly improving the indoor refrigeration effect;

3. the utility model discloses still cut the outside limit at the one section position of buckling of evaporimeter through the position that meets with the evaporimeter two-stage process at one section evaporimeter, thereby make the condensation that produces through the vapor in the one section refrigerated air of evaporimeter can not lead to the condensation to drip to other positions of the indoor set of air conditioning downwards because of one section outside limit protrusion of evaporimeter in the two-stage process outside limit, but make the vapor condensation of one section production of evaporimeter can be given by the evaporimeter two-stage process downwards and hold, flow to in the evaporimeter two-stage process, and can not take place directly to drip down and take place the potential safety hazard, the problem of the hidden danger of dripping has been solved, air conditioner operational reliability has been improved.

Drawings

FIG. 1 is a schematic perspective view of a conventional evaporator;

fig. 2 is a schematic structural view of the self-sealing heat exchanger of the present invention before bending;

fig. 3 is a front cross-sectional view of the self-sealing heat exchanger of the present invention after being bent;

fig. 4 is a partially enlarged view of a portion a of fig. 3.

Fig. 5 is the utility model discloses a spatial structure sketch map of self sealss heat exchanger after bending.

The reference numbers in the figures denote:

1. a first evaporator section; 11. a first inner side edge; 12. a first outer side; 2. an evaporator second section; 21. a second inner side edge; 22. a second bottom edge; 23. a second outer side edge; 3. an evaporator section; 31. a third inner side edge; 32. a third bottom edge; 321. thirdly, trimming; 4. self-sealing interference amount; 5. self-sealing interference range; 6. a fan; 7. a heat exchange pipe; 8. evaporator side plates.

Detailed Description

As shown in fig. 2-5, the utility model provides a self-sealing heat exchanger, it includes:

the evaporator comprises an evaporator second section 2 and an evaporator third section 3, the evaporator second section 2 and the evaporator third section 3 are completely cut at the connecting part of the evaporator second section 2 and the evaporator third section 3, then the evaporator second section 2 and the evaporator third section 3 are bent, the evaporator third section 3 comprises a third inner side edge 31 positioned at the inner side of the bend, the evaporator second section 2 comprises a second inner side edge 21 positioned at the inner side of the bend (after the evaporator second section 2 and the evaporator third section 3 are bent, the second inner side edge 21 and the third inner side edge 31 are oppositely arranged), and part of the structure of the third inner side edge 31 is inserted into the second inner side edge 21, or part of the structure of the second inner side edge 21 is inserted into the third inner side edge 31.

The utility model discloses a cut the position of originally connecting evaporimeter two-stage process and evaporimeter three-section, buckle the two again, and finally insert the inboard side of second inside with the inboard side part of third, or insert the inboard side of third inside with the inboard side part of second, can make and form great interference between the bottom of evaporimeter two-stage process and evaporimeter three-section (when positive V font is put, the V mouth is up), or make and form great interference between the top of evaporimeter two-stage process and evaporimeter three-section (when the font of falling V is put, the V mouth is down), thereby form effectual reliable sealed to the position that evaporimeter two-stage process and evaporimeter three-section meet, prevent or greatly reduce this position and produce the wind leakage, prevent that the air that does not pass through the evaporimeter heat transfer from blowing out via the air outlet, the heat exchange efficiency of evaporimeter has been improved, and compare current adoption sealing cement gum, Stainless steel buckle isotructure seals up, and sealed effect is better to the noise reduces, cost reduction, and the process is simple.

Preferably, the first and second electrodes are formed of a metal,

the evaporator two-section 2 comprises a second bottom edge 22 positioned at the lowermost end thereof, the evaporator three-section 3 comprises a third bottom edge 32 positioned at the lowermost end thereof, the third bottom edge 32 comprises a third cutting edge 321 left after being cut, and the third cutting edge 321 is inserted into the inner part between the second bottom edge 22 and the second inner side edge 21;

or,

the evaporator two-section 2 comprises a second bottom edge 22 at the lowermost end thereof, the evaporator three-section 3 comprises a third bottom edge 32 at the lowermost end thereof, the second bottom edge 22 comprises a second cut edge (not shown) left by cutting, and the second cut edge (not shown) is inserted into the interior between the third bottom edge 32 and the third inner side edge 31.

This is the preferred structure of the interference between the two and three evaporator sections (the V-shaped opening of the heat exchanger bent into a V-shape is upward, i.e. a positive V-shape, as shown in fig. 3 and 5), i.e. the third bottom edge of the bottom of the three evaporator sections is cut, and then the third cut edge is inserted into the position between the second inner side edge and the second bottom edge, as shown in fig. 4, or the second bottom edge of the bottom of the two evaporator sections is cut, and then the second cut edge is inserted into the position between the third inner side edge and the third bottom edge (not shown), so that the interference amount and the interference range formed between the bottom of the two evaporator sections and the bottom of the three evaporator sections can be larger than the interference amount in the prior art (fig. 1), the effect of preventing wind leakage at the joint (i.e. the sealing effect) can be improved, compared with the sealing by adopting the sealing mastic, stainless steel buckle and other structures to seal, the sealing effect is better, and the noise reduces, and cost reduction, the process is simple.

Preferably, the first and second electrodes are formed of a metal,

the evaporator two-stage section 2 comprises a second top edge (not shown) at its uppermost end, the evaporator three-stage section 3 comprises a third top edge (not shown) at its uppermost end, the third top edge comprises a fourth cut edge (not shown) left by cutting, and the fourth cut edge is inserted into the interior between the second top edge and the second inner side edge;

or,

the evaporator two-section 2 comprises a second top edge at its uppermost end, the evaporator three-section 3 comprises a third top edge at its uppermost end, the second top edge comprises a fifth cutting edge (not shown) left by cutting, and the fifth cutting edge is inserted into the interior between the third top edge and the third inner side edge.

This is another preferred structure of the interference between the two and three evaporator sections of the present invention (the V-shaped opening of the heat exchanger bent into a V-shape is downward, i.e. the inverted V-shape), i.e. the third top edge of the top of the evaporator section is cut, and then the fourth cut edge is inserted into a position (not shown) between the second inner side edge and the second top edge, or the second top edge of the top of the evaporator section is cut, and then the fifth cut edge is inserted into a position (not shown) between the third inner side edge and the third top edge, so that the interference amount and the interference range formed between the top of the evaporator section and the top of the evaporator section can be larger than those in the prior art (fig. 1), the effect of preventing wind leakage at the joint (i.e. the sealing effect) can be improved, compared with the sealing with the structure of sealing mastic, stainless steel buckle, etc., the sealing effect is better, and the noise reduces, and cost reduction, the process is simple.

Preferably, the first and second electrodes are formed of a metal,

the second inner side edge 21 and the third inner side edge 31 intersect at a point O, a bottom dead center or a top dead center of the third inner side edge 31 is P, a distance between the point P and the point O is a self-sealing interference amount 4, and the self-sealing interference amount ranges from 0.5mm to 1.2 mm. As shown in fig. 4, this is the utility model discloses a size position of self sealss interference volume, be the self sealss interference volume with the distance between the position point of the lower dead center of the inboard side of third or top dead center P and the inboard side intersection O of second and third, can explain the inboard side of third downwards or upwards insert the size that gets into the inboard side distance size of second, can effectively react the size of the degree of interference between evaporimeter three-section bottom and the two-section bottom of evaporimeter, and the experiment proves that the scope with self sealss interference volume sets up can effectively improve heating capacity or refrigerating capacity (effect) in above-mentioned numerical range, and the noise reduction. The performance test results are as follows: the test result is as follows under the same test environment with the same 1000 r/min:

TABLE 1

	Heating capacity	Noise (F)	Air quantity
				Non-self-sealing	4907.8	43.9	900
Self-sealing interference 0.5mm	4950	43.6	900
				Self-sealing interference 0.8mm	5005	43	900
Self-sealing interference 1.0mm	5006	43.1	900
				Self-sealing interference 1.2mm	5005	43	900

Preferably, the first and second electrodes are formed of a metal,

the second inner side edge 21 and the third inner side edge 31 intersect at a point O, the evaporator two-section 2 includes a second bottom edge 22 located at the lowermost end thereof, the evaporator three-section 3 includes a third bottom edge 32 located at the lowermost end thereof, and the second bottom edge 22 and the third bottom edge 32 intersect at a point Q; alternatively, the evaporator two-section 2 includes a second top edge (not shown) at its uppermost end, the evaporator three-section 3 includes a third top edge (not shown) at its uppermost end, and the second top edge (not shown) intersects the third top edge (not shown) at a point Q;

and the distance between point Q and point O is a self-sealing interference range 5, which is greater than or equal to 20 mm.

The utility model discloses a size position in self sealss interference scope, be self sealss interference scope with the distance between the position point of third base and second base intersection point Q and the inboard side of second and the inboard side intersection point O of third, can explain the inboard side of third downwards or upwards insert the size that gets into the inboard side of second apart from the size, can effectively react the size of the interference degree between evaporimeter three-section bottom and the evaporimeter two-section bottom, and the experiment proves that the scope with self sealss interference volume sets up can effectively improve heating capacity or refrigerating capacity (effect) to above-mentioned numerical range, and the noise reduction. According to the experimental result, when the optimal interference range of the self-sealing interference amount is 0.8mm-1mm and the self-sealing interference range is above 20mm, the self-sealing in the best state can be completed, and the self-sealing structure is the most reliable and stable.

Preferably, the first and second electrodes are formed of a metal,

the evaporator second section 2 and the evaporator third section 3 are bent to form a V-shaped structure, and the opening of the V shape is arranged upwards; and/or the self-sealing heat exchanger comprises a heat exchange tube 7, fins and an evaporator side plate 8; and/or the self-sealing heat exchanger is an evaporator. The utility model discloses still form "V" font structure after buckling evaporimeter two-stage process and evaporimeter three-section, just the opening of "V" font sets up, can make the air intake of air conditioning indoor set down, and the air outlet is last, and the wind after the heat transfer blows off from the upper portion air outlet for to indoor formation shower formula refrigerated effect, greatly improved indoor refrigeration effect.

Preferably, the first and second electrodes are formed of a metal,

after the evaporator second section 2 and the evaporator third section 3 are bent, the second inner side edge 21 and the third inner side edge 31 are oppositely arranged; and/or the evaporator further comprises an evaporator section 1, and the evaporator section 1 is connected with one end, far away from the evaporator section 3, of the evaporator section 2. This is the utility model discloses a one section preferred setting position of evaporimeter and setting up the form can carry out the heat transfer to the air of flowing through this position, improves heat transfer area, increase heat transfer effect.

Preferably, the first and second electrodes are formed of a metal,

the evaporator section 1 and the evaporator section 2 are also bent at the connecting position of the two, the evaporator section 1 comprises a first inner side edge 11 positioned at the inner side of the bent section and a first outer side edge 12 positioned at the outer side of the bent section, the evaporator section 2 comprises a second outer side edge 23 positioned at the outer side of the bent section, and the first outer side edge 12 is cut at the bent position. The utility model discloses still cut the outside limit at the one section position of buckling of evaporimeter through the position that meets with the evaporimeter two-stage process at one section evaporimeter, thereby make the condensation that produces through the vapor in the one section refrigerated air of evaporimeter can not lead to the condensation to drip to other positions of the indoor set of air conditioning downwards because of one section outside limit protrusion of evaporimeter in the two-stage process outside limit, but make the vapor condensation of one section production of evaporimeter can be given by the evaporimeter two-stage process downwards and hold, flow to in the evaporimeter two-stage process, and can not take place directly to drip down and take place the potential safety hazard, the problem of the hidden danger of dripping has been solved, air conditioner operational reliability has been improved.

Preferably, the first and second electrodes are formed of a metal,

after the first outer side edge is cut at the bent position, the end point of the farthest end of the first outer side edge 12 in the direction departing from the first inner side edge 11 along the horizontal direction is M, the end point of the farthest end of the second outer side edge 23 in the direction departing from the second inner side edge 21 along the horizontal direction is N, the distance between the end point M and the end point N in the horizontal direction is MN, and MN is more than or equal to 5 mm. Set up above-mentioned size to more than 5mm can effectively make the comdenstion water on one section 1 of evaporimeter can not follow the outside limit and drip the position beyond the evaporimeter two-stage process, and cause the potential safety hazard, substitute all to accept by the evaporimeter two-stage process the comdenstion water on it as far as to effectively solved the problem of the potential safety hazard of dripping.

The utility model also provides an indoor unit of air conditioner, it includes preceding arbitrary self sealss heat exchanger, still including being located evaporimeter two-stage process 2 with the inboard fan 6 of buckling each other of evaporimeter three-section 3.

The utility model discloses a position that originally connects evaporator two-stage process and evaporator three-stage process is cut open, buckle the two again, and finally insert the inside side part of second with the inside side part of third, or insert the inside side part of third with the inside side part of second, can form effectual reliable seal to the position that evaporator two-stage process and evaporator three-stage meet, prevent or greatly reduce this position and produce wind and leak, prevent that the air that does not pass through the evaporator heat transfer from blowing out via the air outlet, the heat exchange efficiency of evaporator is improved, and compare current adoption sealed daub, stainless steel buckle isotructure seals up, sealed effect is better, and the noise reduces, the cost is reduced, the process is simple;

the two sections of the evaporator and the three sections of the evaporator are bent to form a V-shaped structure, and the V-shaped opening is arranged upwards, so that the air subjected to heat exchange can be blown out from the air outlet at the upper part, a shower type refrigerating effect is formed in a room, and the indoor refrigerating effect is greatly improved;

still cut the outside limit at the one section position of buckling the one section position of evaporimeter that meets with the evaporimeter two-section through the position that meets at one section evaporimeter for the water vapor condensation that one section produced of evaporimeter can be given by the evaporimeter two-section downwards and hold, flows to the evaporimeter two-section in, and can not take place directly down to drip and take place the potential safety hazard, has solved the problem of the hidden danger that drips, has improved air conditioner operational reliability.

The utility model also provides an air conditioner, it includes preceding arbitrary self sealss heat exchanger or aforementioned machine in the air conditioning. The evaporator self-sealing device has the advantages of reducing cost, reducing working procedures, increasing energy efficiency, reducing noise, reducing air conditioner adjusting time and the like; the problem of the hidden danger that drips when solving positive V evaporimeter refrigeration brings one subsidiary function: the invented inverted evaporator can realize the function that the air outlet is on the top and the air inlet is on the bottom, and the air conditioner can perform shower type refrigeration air supply. The human experience feeling can be greatly increased, the heating time can be saved, and the refrigerating efficiency and the refrigerating comfort level can be increased.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A self-sealing heat exchanger which is characterized in that: the method comprises the following steps:

the novel solar heat collector comprises an evaporator second section (2) and an evaporator third section (3), the evaporator second section (2) and the evaporator third section (3) are completely cut at the connecting position of the evaporator second section and the evaporator third section (3), then the evaporator second section and the evaporator third section are bent, the evaporator third section (3) comprises a third inner side edge (31) located on the inner side of the bend, the evaporator second section (2) comprises a second inner side edge (21) located on the inner side of the bend, part of the structure of the third inner side edge (31) is inserted into the second inner side edge (21), or part of the structure of the second inner side edge (21) is inserted into the third inner side edge (31).

2. The self-sealing heat exchanger of claim 1, wherein:

the evaporator two-section (2) comprises a second bottom edge (22) positioned at the lowermost end of the evaporator three-section (3), the evaporator three-section (3) comprises a third bottom edge (32) positioned at the lowermost end of the evaporator three-section, the third bottom edge (32) comprises a third cutting edge (321) left after being cut, and the third cutting edge (321) is inserted into the inner part between the second bottom edge (22) and the second inner side edge (21);

or,

the evaporator two-section (2) comprises a second bottom edge (22) located at the lowest end of the evaporator three-section (3), the evaporator three-section comprises a third bottom edge (32) located at the lowest end of the evaporator three-section, the second bottom edge (22) comprises a second cutting edge left after being cut, and the second cutting edge is inserted into the inner portion between the third bottom edge (32) and the third inner side edge (31).

3. The self-sealing heat exchanger of claim 1, wherein:

the evaporator two-stage section (2) comprises a second top edge at the uppermost end thereof, the evaporator three-stage section (3) comprises a third top edge at the uppermost end thereof, the third top edge comprises a fourth cutting edge left by cutting, and the fourth cutting edge is inserted into the inner part between the second top edge and the second inner side edge;

or,

the evaporator two-stage section (2) comprises a second top edge located at the uppermost end thereof, the evaporator three-stage section (3) comprises a third top edge located at the uppermost end thereof, the second top edge comprises a fifth cutting edge left by cutting, and the fifth cutting edge is inserted into the interior between the third top edge and the third inner side edge.

4. The self-sealing heat exchanger of claim 1, wherein:

the second inner side edge (21) and the third inner side edge (31) are intersected at a point O, the bottom dead center or the top dead center of the third inner side edge (31) is P, the distance between the point P and the point O is a self-sealing interference amount (4), and the range of the self-sealing interference amount is 0.5mm-1.2 mm.

5. The self-sealing heat exchanger of claim 1, wherein:

the second inner side edge (21) and the third inner side edge (31) intersect at a point O, the evaporator two-section (2) comprises a second bottom edge (22) at the lowest end thereof, the evaporator three-section (3) comprises a third bottom edge (32) at the lowest end thereof, and the second bottom edge (22) and the third bottom edge (32) intersect at a point Q; or, the evaporator two-section (2) comprises a second top edge at the uppermost end thereof, the evaporator three-section (3) comprises a third top edge at the uppermost end thereof, and the second top edge and the third top edge intersect at a point Q;

and the distance between point Q and point O is a self-sealing interference range (5) greater than or equal to 20 mm.

6. The self sealing heat exchanger of any one of claims 1-5, wherein:

the evaporator second section (2) and the evaporator third section (3) are bent to form a V-shaped structure, and the opening of the V shape is arranged upwards; and/or the self-sealing heat exchanger comprises a heat exchange tube (7), fins and an evaporator side plate (9); and/or the self-sealing heat exchanger is an evaporator.

7. The self-sealing heat exchanger of claim 1, wherein:

after the evaporator second section (2) and the evaporator third section (3) are bent, the second inner side edge (21) and the third inner side edge (31) are oppositely arranged; and/or the evaporator further comprises an evaporator first section (1), and the evaporator first section (1) is connected with one end, far away from the evaporator third section (3), of the evaporator second section (2).

8. The self-sealing heat exchanger of claim 7, wherein:

the evaporator is characterized in that the evaporator section (1) and the evaporator section (2) are also bent at the connecting position of the evaporator section and the evaporator section, the evaporator section (1) comprises a first inner side edge (11) located on the inner side of the bent section and a first outer side edge (12) located on the outer side of the bent section, the evaporator section (2) comprises a second outer side edge (23) located on the outer side of the bent section, and the first outer side edge (12) is cut at the bent position.

9. The self-sealing heat exchanger of claim 8, wherein:

after the first outer side edge is cut at the bent part, the end point of the farthest end of the first outer side edge (12) in the direction departing from the first inner side edge (11) along the horizontal direction is M, the end point of the farthest end of the second outer side edge (23) in the direction departing from the second inner side edge (21) along the horizontal direction is N, the distance between the end point M and the end point N in the horizontal direction is MN, and MN is larger than or equal to 5 mm.

10. An air conditioning indoor unit, characterized in that: comprising a self-sealing heat exchanger according to any one of claims 1-9, further comprising a blower (6) located inside the evaporator two-section (2) and the evaporator three-section (3) bent over each other.

11. An air conditioner, characterized in that: comprising the self-sealing heat exchanger according to any one of claims 1 to 9 or the air conditioning indoor unit according to claim 10.