An assembly connection structure of a middle frame and a base and an air conditioner having the same

Abstract

The present invention provides an assembly connection structure between a middle frame and a base and an air conditioner having the same, wherein the assembly connection structure between the middle frame and the base includes a plurality of clamping structures arranged between the middle frame and the base, wherein the clamping structures are used for fixed connection between the middle frame and the base, and a positioning structure is also arranged between the middle frame and the base, wherein the positioning structure is used for assembly and positioning of the middle frame and the base. The present invention realizes rapid assembly and positioning by means of the coordinated installation of the positioning pin and the clamping structure, realizes linear coordinated installation and disassembly of the entire clamping process by setting the coordinated angle of the clamping structure, improves the anti-slip performance of the clamping structure by setting the straight line segment on the buckle, and facilitates the installation and / or disassembly of the clamping structure by setting different demoulding angles on the buckle seat. The present invention has a simple structure and is easy to produce, and improves the assembly speed and assembly strength of the middle frame and the base of the integrated panel.

Description

Technical Field

[0001] The present invention relates to the field of air conditioners, and in particular to an assembly connection structure of a middle frame and a base and an air conditioner having the same. Background Art

[0002] Household air conditioners can be divided into integrated air conditioners and split air conditioners according to their structure. Among them, the most commonly used split air conditioners are cabinet air conditioners and wall-mounted air conditioners. Wall-mounted air conditioners are popular because of their compact structure and do not occupy ground space.

[0003] In the prior art, there are two structural forms of the middle frame panel of a wall-mounted air conditioner. One is that the panel and the middle frame are separately arranged, and screw connection structures are arranged at the upper and lower edges of the air outlet between the middle frame and the base to ensure the gap and strength of the air outlet. Due to the existence of the openable panel, the screw connection structure is covered. The other is that the panel and the middle frame are arranged integrally. Compared with the split panel and the middle frame, this arrangement has the advantages of small indoor unit thickness, low product weight, and lower production cost, and has gradually become the current research direction. For the structure of the middle frame of the integrated panel, setting a screw connection structure on the upper edge of the air outlet will seriously affect the appearance of the product. In view of this situation, most manufacturers set a snap-in structure between the middle frame and the base. However, the existing snap-in structure is not ideal. When the snap-in structure is too loose, the buckle is easy to fall off during transportation, or the gap on the upper edge of the air outlet is too large, affecting the appearance of the product; when the snap-in structure is too tight, it will make the product difficult to assemble and disassemble, affecting production and after-sales.

[0004] In view of this, this invention is proposed. Summary of the invention

[0005] The problem to be solved by the present invention is that in the prior art, the snap-on structure used to connect the middle frame of the integrated panel and the base is unreasonable, and is prone to being too loose or too tight, which in turn causes the connection parts to easily become detached and / or the gap on the upper edge of the air outlet is too large and / or the product is difficult to assemble and disassemble.

[0006] In order to solve the above problems, the present invention provides an assembly connection structure between a middle frame and a base, including a plurality of clip-on structures arranged between the middle frame and the base, the clip-on structures are used for fixed connection between the middle frame and the base, and a positioning structure is also arranged between the middle frame and the base, the positioning structure is used for assembly positioning of the middle frame and the base.

[0007] In the prior art, there is no positioning device on the upper edge of the air outlet of the integrated panel middle frame. The provision of the positioning structure helps to improve the assembly efficiency of the product, avoid installation misalignment of the snap-fit ​​structure, and improve the production efficiency of the product.

[0008] Furthermore, the positioning structure includes a latch and a latch seat, the latch includes an I-shaped plug connector, the latch seat includes an I-shaped plug hole, and the plug connector is inserted into the plug hole to complete the plug-in positioning.

[0009] The plug-in structure is simple and easy to implement, and is convenient to install, which can greatly shorten the assembly time of the middle frame and the base. The "I"-shaped plug-in structure can avoid relative movement and rotation between the middle frame and the base after the plug-in is completed, and also avoid abnormal noise from the plug-in part during transportation and / or operation of the air conditioner.

[0010] Furthermore, the top of the plug connector is higher than the clamping portion of the clamping structure, so that the positioning structure can be assembled before the clamping structure during assembly.

[0011] This arrangement is to ensure that the buckle starts to engage with the buckle seat only after the top end of the plug connector enters a part of the pin hole, thereby utilizing the positioning effect of the positioning structure to achieve rapid engagement of the engaging structure and speed up installation.

[0012] Furthermore, the snap-fit ​​structure includes a snap and a snap seat, the snap includes a snap shaft, and the snap shaft is used to snap-fit ​​with the snap seat.

[0013] The structure of the buckle and the buckle seat can be integrally formed with the middle frame and / or the base, reducing the setting of scattered connecting parts, avoiding the repeated installation of scattered connecting parts during the assembly process, and improving the assembly efficiency of the air conditioner.

[0014] Furthermore, the snap-fit ​​shaft is an irregular columnar structure, including two oppositely arranged first guide walls and two oppositely arranged contraction arcs, the two first guide walls are used for sliding installation relative to the snap-fit ​​seat, and the two contraction arcs are used for completing snap-fit ​​with the snap-fit ​​seat.

[0015] The provision of the first guide wall helps to play a guiding role during the snap-fit ​​installation, thereby achieving rapid installation and assembly of the snap-fit ​​structure. The provision of the contraction arc allows the snap-fit ​​shaft to contract at this position so as to cooperate with the buckle seat to complete the snap-fit ​​fixation.

[0016] Furthermore, a first straight line segment is provided between the first guide wall and the contraction arc.

[0017] The first straight line segment is used to increase the matching amount between the buckle and the buckle seat, increase the matching stroke of the two, and then increase the escape stroke of the buckle, thereby enhancing the anti-escape function of the snap-fit ​​structure.

[0018] Furthermore, the buckle seat includes a buckle portion, a buckle hole is formed in the buckle portion, the buckle hole is provided with a contraction opening in the assembly direction of the buckle structure, and two second guide walls are arranged opposite to each other at the contraction opening. The second guide wall and the first guide wall are in line contact with each other to realize the sliding guide installation of the buckle.

[0019] This arrangement helps to quickly install the buckle, and utilizes the cooperation between the shrinkage opening and the shrinkage arc to complete the snap connection between the buckle and the buckle seat.

[0020] Furthermore, the first guide angle α of the first guide wall is greater than the second guide angle β of the second guide wall, and the value of α-β is between 2 and 5°, wherein α is the angle between the line perpendicular to the buckle installation direction and the extension line of the first guide wall, and β is the angle between the line perpendicular to the buckle installation direction and the extension line of the second guide wall.

[0021] This arrangement can keep the first guide wall and the second guide wall always in line contact to achieve assembly guidance, avoiding the installation jam caused by too much resistance between the surface contact guides commonly used in the prior art.

[0022] Furthermore, a second straight line segment is provided between the second guide wall and the engaging hole.

[0023] This arrangement further strengthens the anti-escape function of the snap-fit ​​structure.

[0024] Furthermore, the snap-fitting hole and the buckle portion include a first ejection surface and a second ejection surface, and the first ejection surface and the second ejection surface have different ejection angles in the length direction of the air conditioner, so that the snap-fitting hole appears in the shape of a loudspeaker in the length direction of the air conditioner.

[0025] This arrangement ensures that after the snap-fit ​​structure is snapped together, on the side with a larger ejection angle, the gap between the snap and the snap seat is larger, and during installation or removal, the resistance is smaller, so the snap-fit ​​structure can be installed or removed relatively easily; and on the side with a smaller ejection angle, the gap between the snap and the snap seat is smaller, so the connection strength of the snap-fit ​​structure can be ensured.

[0026] The present invention also discloses an air conditioner, which comprises the assembly connection structure of the middle frame and the base as described above.

[0027] The advantages of the assembly connection structure of the air conditioner and the middle frame and the base are the same as those of the prior art, which will not be described in detail here.

[0028] Compared with the prior art, the present invention realizes the rapid assembly and positioning between the middle frame and the base through the matching installation mode of the positioning pin and the clamping structure, and realizes the linear matching installation and disassembly of the whole clamping process through the setting of the matching angle of the clamping structure, avoiding the increase of resistance and assembly jamming caused by the surface contact in the clamping structure, and increasing the matching amount of the clamping and the clamping seat through the setting of the straight line segment on the clamping, and also increasing the disengagement stroke of the clamping, thereby improving the anti-disengagement performance of the clamping structure; and through the setting of different draft angles on the clamping seat, the clamping seat is formed into a megaphone-shaped structure, which makes the part with a larger draft angle have a smaller resistance to the combination of the clamping, thereby facilitating the installation and / or disassembly of the clamping structure, and the part with a smaller draft angle has a small combination gap with the clamping, thereby ensuring the combination strength of the clamping structure and ensuring the combination stability of the middle frame and the base of the whole machine in a natural state. The present invention has a simple structure, is easy to produce, and improves the assembly speed and assembly strength of the middle frame and the base of the integrated panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of the integrated panel middle frame according to an embodiment of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the base according to an embodiment of the present invention;

[0031] Figure 3 for Figure 2 A partial enlarged view of the middle A area;

[0032] Figure 4 A schematic structural diagram of another angle of the integrated panel middle frame according to an embodiment of the present invention;

[0033] Figure 5 for Figure 4 A partial enlarged view of the B area;

[0034] Figure 6 for Figure 4 A partial enlarged view of the middle C area;

[0035] Figure 7 This is a schematic diagram of the connection process between the buckle and the buckle seat according to an embodiment of the present invention;

[0036] Figure 8 A schematic diagram of the connection process between the latch and the latch seat according to an embodiment of the present invention;

[0037] Fig. 9 It is a cross-sectional schematic diagram of the middle frame and the base after being connected according to an embodiment of the present invention;

[0038] Fig.10 A cross-sectional schematic diagram of the connection process between the middle frame and the base according to an embodiment of the present invention;

[0039] Fig.11 It is a cross-sectional schematic diagram at another angle after the middle frame and the base are connected according to an embodiment of the present invention;

[0040] Fig.12 for Fig.11 A partial enlarged view of the D part in the middle;

[0041] Fig.13 It is another cross-sectional schematic diagram of another angle after the middle frame and the base are connected according to the embodiment of the present invention;

[0042] Fig.14 for Fig.13 A partial enlarged view of the E part;

[0043] Fig.15 for Fig.13 A partial enlarged view of the F part in the middle;

[0044] Fig.16 It is a cross-sectional schematic diagram of the air conditioner in the length direction after the middle frame and the base are connected according to the embodiment of the present invention;

[0045] Fig.17 for Fig.16 A partial enlarged view of the middle G area;

[0046] Fig.18 for Fig.17 A partial enlarged view of the middle H area.

[0047] Description of reference numerals:

[0048] 1-middle frame; 11-panel; 12-air outlet; 2-base; 3-clamping structure; 31-clamp; 311-clamping shaft; 3111-top arc; 3112-first guide wall; 3113-first straight line segment; 3114-contraction arc; 312-limiting plate; 313-axis support; 314-first reinforcement; 32-clamping seat; 321-clamping part; 3211-second guide wall; 3212-second straight line segment; 322-clamping hole; 323-first ejection surface; 324-second ejection surface; 325-second reinforcement; 4-positioning structure; 41-pin; 411-plug connector; 412-third reinforcement; 42-pin seat; 421-pin hole. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0050] The integrated panel middle frame described in the present invention is as follows Figure 1 As shown, the middle frame 1 includes a middle frame body and a panel 11 integrally formed therewith, and an air outlet 12 is provided on the lower side of the panel 11. The present invention mainly relates to the assembly connection structure of the middle frame 1 and the base 2 at the upper edge of the air outlet 12.

[0051] The following describes in detail an assembly connection structure between a middle frame and a base and an air conditioner having the same according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0052] Example 1

[0053] This embodiment provides an assembly connection structure between a middle frame and a base, such as Figure 1-9 As shown, the assembly connection structure between the middle frame and the base includes a plurality of snap-fit ​​structures 3 arranged between the middle frame 1 and the base 2, the snap-fit ​​structures 3 are used for fixed connection between the middle frame 1 and the base 2, and a positioning structure 4 is also arranged between the middle frame 1 and the base 2, the positioning structure 4 is used for assembly positioning of the middle frame 1 and the base 2. In the prior art, there is no positioning device on the upper edge of the air outlet 12 of the integrated panel middle frame, and the weight of the two ends along the length direction of the middle frame 1 is greater than that of the middle part. When assembling it with the base 2, the deformation caused by the heavier ends makes the snap-fit ​​structure 3 very easy to be misaligned during alignment, which seriously affects the production efficiency of the product. The setting of the positioning structure 4 helps to improve the assembly efficiency of the product, avoid installation misalignment of the snap-fit ​​structure 3, and improve the production efficiency of the product.

[0054] In this embodiment, if Figure 8 As shown, the positioning structure 4 includes a latch 41 and a latch seat 42. The latch 41 is inserted into the latch seat 42 to complete the positioning. The plug-in structure is simple and easy to implement, and the installation is convenient, which can greatly shorten the assembly time of the middle frame 1 and the base 2. It should be understood that the latch 41 can be set on the middle frame 1. At this time, the latch seat 42 is correspondingly set on the base 2. The latch 41 can also be set on the base 2. At this time, the latch seat 42 is correspondingly set on the middle frame 1.

[0055] Better, such as Figure 8 , Figure 11-13 , Fig.15As shown, the latch 41 includes an I-shaped plug connector 411, and the plug seat 42 includes an I-shaped plug hole 421. The plug connector 411 is inserted into the plug hole 421 to complete the plug-in positioning. The I-shaped plug-in structure can avoid relative movement and rotation between the middle frame 1 and the base 2 after the plug-in is completed. Preferably, after the plug-in is completed, the distance between the two ends of the plug connector 411 in the length direction of the middle frame 1 and the inner wall of the plug hole 421 is 0.2-0.3mm. This arrangement enables the positioning structure 4 to be assembled smoothly during plug-in to avoid jamming. The smaller gap after assembly also avoids the shaking of the middle frame 1 relative to the base 2 after assembly. The structure is stable and avoids abnormal noise from the plug-in part during transportation and / or operation of the air conditioner. Figure 6 The plug connector 411 is arranged on the middle frame 1 or the base 2 through the third reinforcement part 412. Preferably, the third reinforcement part 412 is a reinforcement structure formed by combining a plurality of ribs.

[0056] As an embodiment of the present invention, Figure 7 , Fig.10 As shown, the snap-on structure 3 includes a snap 31 and a snap seat 32, and the snap 31 and the snap seat 32 cooperate to complete the fixed connection between the middle frame 1 and the base 2. Since there are several snap-on structures 3, all of the snaps 31 are arranged on the middle frame 1, or all of the snaps 31 are arranged on the base 2, or a part of the snaps 31 are arranged on the middle frame 1, and a part of the snaps 31 are arranged on the base 2. In the above case, the snap seat 32 can be correspondingly arranged on the base 2 and / or the middle frame 1. Since the structure of the snap 31 and the snap seat 32 can be integrally formed with the middle frame 1 and / or the base 2, the setting of scattered connecting parts is reduced, the repeated placement and installation of scattered connecting parts during the assembly process is avoided, and the assembly efficiency of the air conditioner is improved.

[0057] Specifically, the buckle 31 includes a clamping shaft 311, the clamping shaft 311 is used to cooperate with the clamping seat 32, the clamping shaft 311 is fixedly arranged on the middle frame 1 or the base 2 through the shaft support 313, and a limiting plate 312 is arranged at both ends of the clamping shaft 311, and the limiting plate 312 is fixed to the middle frame 1 or the base 2 through the first reinforcing part 314. Preferably, the first reinforcing part 314 is a reinforcing structure composed of multiple ribs and / or rib plates. The two ends in this embodiment refer to the two ends along the length direction of the middle frame 1, and the limiting plate 312 is used to limit the clamping part after the clamping is completed, so as to prevent the middle frame 1 from being displaced relative to the base 2 during transportation or use.

[0058] Preferably, the clamping shaft 311 is an irregular columnar structure, including two first guide walls 3112 arranged oppositely and two contraction arcs 3114 arranged oppositely, the two first guide walls 3112 are used for sliding installation relative to the buckle seat 32, and the two contraction arcs 3114 are used for completing the clamping with the buckle seat 32. The setting of the first guide wall 3112 helps to play a guiding role during the clamping installation, so as to realize the rapid installation and assembly of the clamping structure 3, and the setting of the contraction arc 3114 makes the clamping shaft 311 shrink at this position, so as to cooperate with the buckle seat 32 to complete the clamping fixation, preferably, specifically in this embodiment, the top of the clamping shaft 311 is a top arc 3111, and the first guide walls 3112 are arranged at both ends of the top arc 3111, so that the contact surface of the buckle 31 and the buckle seat 32 after the assembly is completed is an arc surface contact, which avoids the problem of increased local pressure caused by line or point contact and affecting the service life of the components.

[0059] As a preferred embodiment, Fig.17 , 18 As shown, a first straight line segment 3113 is further provided between the first guide wall 3112 and the contraction arc 3114, and the first straight line segment 3113 is used to increase the matching amount between the buckle 31 and the buckle seat 32, increase the matching stroke of the two, and then increase the buckle escape stroke, thereby enhancing the anti-escape function of the clamping structure 3. In the prior art, the clamping shaft 311 is often cylindrical, and part of it is a setting of a guide structure plus an arc structure. The corresponding clamping hole 322 in the buckle seat 32 is usually also an arc structure. This setting makes the rear end of the guide structure close to the opening position of the clamping hole 322. Once the arc structure escapes, the buckle 31 is Due to the structural setting, it gradually shrinks from the rear end to the top end, and there will be no resistance to disengagement. In this application, the first straight segment 3113 is set, and even if the arc 3114 is shrunk from the clamping hole 322, the first guide wall 3112 will not be exposed, which avoids the fast sliding of the buckle 31. Due to the limited movement of each component in the air conditioner, it is extremely difficult for the first straight segment 3113 to completely disengage from the clamping hole 322, achieving the purpose of preventing the buckle 31 from disengaging, ensuring the connection stability of the clamping structure 3. Specifically, in this embodiment, the length of the first straight segment 3113 is 0.8-1mm, preferably 0.9mm. It should be noted that the rear end described in this embodiment refers to the end opposite to the top end of the clamping shaft 311.

[0060] In this embodiment, if Figure 3As shown, the buckle seat 32 includes a buckle portion 321, a buckle hole 322 is formed in the buckle portion 321, the buckle hole 322 is provided with a contraction opening in the assembly direction of the buckle structure 3, two second guide walls 3211 are provided at the contraction opening, and the second guide walls 3211 and the first guide walls 3112 are in line contact to achieve the sliding guide installation of the buckle 31. This arrangement helps to quickly install the buckle 31, and the buckle 31 and the buckle seat 32 are connected by the contraction opening and the contraction arc 3114.

[0061] Preferably, a second straight line segment 3212 is further provided between the second guide wall 3211 and the snap-on hole 322. The first straight line segment 3113 is used to increase the matching amount between the snap 31 and the snap seat 32. This arrangement further strengthens the anti-slip function of the snap-on structure 3. In the present embodiment, the length of the second straight line segment 3212 is greater than the length of the first straight line segment 3113. As a preferred embodiment, the length of the second straight line segment 3212 is greater than the length of the first straight line segment 3113 by 0.2 mm.

[0062] In this embodiment, if Figure 16-18 As shown, the first guide angle α of the first guide wall 3112 is greater than the second guide angle β of the second guide wall 3211, and the value of α-β is between 2 and 5°, wherein α is the angle between a line perpendicular to the installation direction of the buckle 31 and an extension line of the first guide wall 3112, and β is the angle between a line perpendicular to the installation direction of the buckle 31 and an extension line of the second guide wall 3211. In some optional embodiments, α-β=3° or 4°. This setting can keep the first guide wall 3112 and the second guide wall 3211 always in line contact to achieve assembly guidance, thereby avoiding the installation jamming caused by too much resistance between the surface contact guides commonly used in the prior art. In the prior art, the angle between the guide walls They are usually equal. During installation, surface contact will be formed between the two, resulting in greater resistance and obvious installation jamming, which affects the assembly efficiency of the product. If α is less than β, during the installation process, the buckle 31 is pushed forward and the second guide wall 3211 gradually moves away, causing β to become smaller, which is also prone to jamming during the installation process. In the present application, since α is greater than β, the reduction of β during the installation process will not affect the size relationship between the two. Therefore, it can be ensured that the line contact between the first guide wall 3112 and the second guide wall 3211 is always maintained throughout the entire assembly process, thereby reducing the impact of resistance on the installation process, making the assembly process of the middle frame 1 and the base 2 smoother, and improving the assembly efficiency of the product.

[0063] Better, such as Fig.13 , Fig.14 As shown, the first and second ejection surfaces 323 and 324 are included between the snap-fitting hole 322 and the snap-fitting portion 321. The first and second ejection surfaces 323 and 324 have different ejection angles in the length direction of the air conditioner, so that the snap-fitting hole 322 is in the shape of a loudspeaker in the length direction of the air conditioner. This arrangement enables the snap-fitting structure 3 to be snapped together with a larger gap between the snap 31 and the snap seat 32 on the side with a larger ejection angle after the snap-fitting structure 3 is snapped together. During installation or removal, the resistance is smaller, and the snap-fitting structure 3 can be installed or removed more easily. On the side with a smaller ejection angle, the gap between the snap 31 and the snap seat 32 is smaller, so that the connection strength of the snap-fitting structure 3 can be ensured. In some optional embodiments, the ejection angle of the first ejection surface 323 is 0.9 to 1°. The demolding angle of the second demolding surface 324 is 0.1-0.2°, the first demolding surface 323 accounts for 3 / 5 of the total demolding width, and the second demolding surface 324 accounts for 2 / 5 of the total demolding width. In this case, when the snap-fit ​​structure 3 is snapped, the gap between the buckle 31 and the buckle seat 32 is 0.7-0.8 mm on the side of the first demolding surface 323 and 0.2-0.3 mm on the side of the second demolding surface 324. This arrangement makes the disassembly and assembly of the snap-fit ​​structure 3 more convenient while meeting the connection strength between the middle frame 1 and the base 2, thereby improving the efficiency of product assembly or after-sales maintenance. It should be understood that the buckle portion 321 is arranged on the middle frame 1 and / or the base 2 through the second reinforcement portion 325. Preferably, the second reinforcement portion 325 is a reinforcement structure formed by a combination of multiple ribs.

[0064] As a preferred embodiment, during assembly, the positioning structure 4 starts to be assembled before the snap-fit ​​structure 3. In the drawings of this embodiment, the latch 41 and the buckle 31 are both arranged on the middle frame 1. In this case, the top of the plug connector 411 is higher than the top of the snap-fitting part on the buckle 31. In addition, there are the following situations: when the latch 41 is arranged on the middle frame 1 and the buckles 31 are both arranged on the base 2, the top of the plug connector 411 is higher than the top of the snap-fitting part on the buckle seat 32; when The plug 41 is arranged on the middle frame 1, and a part of the buckles 31 are arranged on the middle frame 1, and a part of the buckles 31 are arranged on the base 2. At this time, it is necessary to ensure that the top of the plug connector 411 is higher than the top of all the buckles 31 and / or the buckle seat 32 engaging parts arranged on the middle frame 1. It should be understood that when the plug 41 is arranged on the base 2, the situation is similar to the above situation, and it is sufficient to limit the top of the plug 41 to be higher than the top of the buckle 31 and / or the buckle seat 32 engaging parts arranged on the base 2, which will not be described in detail here. The above arrangement is to ensure that the buckle 31 starts to engage with the buckle seat 32 only after the top of the plug connector 411 enters a part of the plug hole 421, so as to utilize the positioning function of the positioning structure 4 to realize the rapid engagement of the engaging structure 3 and speed up the installation speed.

[0065] Example 2

[0066] This embodiment discloses an air conditioner, which includes the assembly connection structure of the middle frame and the base as described in Embodiment 1.

[0067] The air conditioner provided in this embodiment has the same advantages as the assembly connection structure of the middle frame and the base described in Example 1 over the prior art, which will not be repeated here.

[0068] It should be noted that all the terms used in the present invention to indicate directionality and position, such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", "top", "lower", "tail end", "head end", "center", etc., are only used to explain the relative positional relationship and connection status between the components in a certain state, and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0069] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An assembly connection structure of a middle frame and a base, characterized in that: The invention comprises a plurality of clamping structures (3) arranged between a middle frame (1) and a base (2), wherein the clamping structures (3) are used for fixed connection between the middle frame (1) and the base (2); a positioning structure (4) is also arranged between the middle frame (1) and the base (2), wherein the positioning structure (4) is used for assembly and positioning of the middle frame (1) and the base (2); the clamping structure (3) comprises a buckle (31) and a buckle seat (32); the buckle (31) comprises a clamping shaft (311), wherein the clamping shaft (311) is used for clamping and cooperating with the buckle seat (32); the buckle seat (3 2) comprising a buckle portion (321), wherein a snap-on hole (322) is formed in the buckle portion (321); a first ejection surface (323) and a second ejection surface (324) are formed between the buckle hole (322) and the buckle portion (321); the first ejection surface (323) and the second ejection surface (324) have different ejection angles in the length direction of the air conditioner, so that the buckle hole (322) is in the shape of a loudspeaker in the length direction of the air conditioner; the buckle (31) and the buckle seat (32) are integrally formed with the middle frame (1) and / or the base (2).

2. The assembly connection structure of the middle frame and the base according to claim 1, characterized in that: The positioning structure (4) comprises a latch (41) and a latch seat (42); the latch (41) comprises an I-shaped plug connector (411); the latch seat (42) comprises an I-shaped plug hole (421); the plug connector (411) is inserted into the plug hole (421) to complete plugging and positioning.

3. The assembly connection structure of the middle frame and the base according to claim 2, characterized in that: The top of the plug connector (411) is higher than the clamping position of the clamping structure (3), and is used to enable the positioning structure (4) to be assembled before the clamping structure (3) during assembly.

4. The assembly connection structure of the middle frame and the base according to claim 1, characterized in that: The snap-fit ​​shaft (311) is an irregular columnar structure, comprising two first guide walls (3112) arranged opposite to each other and two contraction arcs (3114) arranged opposite to each other, the two first guide walls (3112) being used for sliding installation relative to the snap-fit ​​seat (32), and the two contraction arcs (3114) being used for completing snap-fitting with the snap-fit ​​seat (32).

5. The assembly connection structure of the middle frame and the base according to claim 4, characterized in that: A first straight line segment (3113) is also provided between the first guide wall (3112) and the contraction arc (3114).

6. An assembly connection structure of a middle frame and a base as claimed in claim 4 or 5, characterized in that: The snap-fitting hole (322) is provided with a shrinkage opening in the assembly direction of the snap-fitting structure (3), and two second guide walls (3211) arranged opposite to each other are provided at the shrinkage opening, and the second guide walls (3211) and the first guide walls (3112) are in line contact with each other to achieve sliding guide installation of the buckle (31).

7. The assembly connection structure of the middle frame and the base according to claim 6, characterized in that: The first guide angle α of the first guide wall (3112) is greater than the second guide angle β of the second guide wall (3211), and the value of α-β is between 2 and 5 degrees, wherein α is the angle between a line perpendicular to the installation direction of the buckle (31) and an extension line of the first guide wall (3112), and β is the angle between a line perpendicular to the installation direction of the buckle (31) and an extension line of the second guide wall (3211).

8. The assembly connection structure of the middle frame and the base according to claim 7, characterized in that: A second straight line segment (3212) is also provided between the second guide wall (3211) and the engaging hole (322).

9. An air conditioner, characterized in that: The air conditioner comprises an assembly connection structure of a middle frame and a base as claimed in any one of claims 1 to 8.

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