Assembly structure of front panel and middle frame and air conditioner

Abstract

The present invention provides an assembly structure of a front panel and a middle frame and an air conditioner, wherein an electric control box of the air conditioner is installed on the front side of the middle frame, the front panel covers the electric control box, a slide groove is provided on one of the middle frame and the front panel, and a slide rod is provided on the other, the slide rod can be slidably inserted into the slide groove, so that the middle frame and the front panel can be slidably connected. The assembly structure of the front panel and the middle frame and the air conditioner described in the present invention have the advantages of simple structure, convenient assembly, and the front panel can be quickly opened, so that the electric control box can be conveniently inspected and repaired.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, in particular to an indoor unit of an air conditioner, and more particularly to an assembly structure of a front panel and a middle frame and an air conditioner. Background Art

[0002] As an air conditioning device, an air conditioner is used to adjust indoor air and keep the indoor air in a state suitable for people. Air conditioners can be roughly divided into integrated and split types, wherein the split type air conditioner is composed of an indoor unit arranged inside the space where the temperature needs to be adjusted and an outdoor unit arranged in the outdoor space. The overall appearance of the existing indoor unit of the air conditioner is composed of a main base with various components installed inside to form the back appearance, and a front frame located in front of the main base to form the front appearance, that is, a middle frame. The front of the middle frame is closed by a front panel. On the upper side of the front panel, that is, above the middle frame, an air inlet grille is formed to allow indoor air to flow into the indoor unit. On the lower side of the middle frame, an air outlet is formed extending in the horizontal direction, and the air flowing into the indoor unit can be discharged through the air outlet. In addition, an electric control box is arranged on the front side of the middle frame. Generally, the electric control box is located at the right end of the front side of the middle frame. The electric control box is used to control the working state of the air conditioner. The circuit in the electric control box is complex and the failure rate is high. When the air conditioner fails, it is often necessary to open the front panel and repair the electric control box.

[0003] In the prior art, there are two main ways to install the front panel of the air conditioner: one is to connect the front panel with the middle frame through buckles. In this structure, in order to ensure the connection strength and connection stability between the front panel and the middle frame, it is often necessary to set multiple buckles with complex structures between the front panel and the middle frame. When the front panel needs to be opened to inspect the electric control box, on the one hand, the assembly structure of the front panel and the middle frame is complex and the front panel is difficult to open; on the other hand, the buckles between the front panel and the middle frame are all made of plastic and are easily damaged during repeated opening and closing. The other is that the front panel is rotatably mounted on the middle frame through the upper shaft, and buckles are set on the lower side. When the front panel needs to be opened to inspect the electric control box, the buckles on the lower side are opened and the front panel is rotated to open. Although the front panel installation method of this structure improves the convenience of opening the front panel to a certain extent, the front panel will spontaneously rotate and cover under the action of gravity and cannot be fixed in the open state. During the inspection process, workers need to fix the front panel in the open state by hand or tools, which is also very inconvenient to use.

[0004] Therefore, it is one of the technical problems to be solved urgently by those skilled in the art to provide an assembly structure of a front panel and a middle frame and an air conditioner with a simple structure, convenient assembly, and a front panel that can be quickly opened to facilitate the inspection of the electric control box. Summary of the invention

[0005] The present invention designs an assembly structure of a front panel and a middle frame and an air conditioner to achieve the purpose of simple assembly structure between the front panel and the middle frame, convenient assembly, and quick opening of the front panel to facilitate maintenance of the electric control box.

[0006] In order to solve the above problems, the present invention discloses an assembly structure of a front panel and a middle frame, wherein an electric control box of the air conditioner is installed on the front side of the middle frame, and the front panel covers the electric control box. A slide groove is provided on one of the middle frame and the front panel, and a slide rod is provided on the other. The slide rod can be slidably inserted into the slide groove, so that the middle frame and the front panel can be slidably connected.

[0007] The present application realizes a sliding connection between the middle frame and the front panel by respectively setting a sliding groove and a sliding rod on the middle frame and the front panel, and realizing a sliding connection between the middle frame and the front panel through a sliding connection between the sliding rod and the sliding groove, so that the front panel can slide relative to the middle frame to open the front panel, so that the front side of the middle frame is exposed, which is convenient for users or maintenance personnel to check the components on the middle frame, especially the electric control box on the middle frame can be exposed, which is convenient for maintenance personnel to repair the electric control box.

[0008] Furthermore, the slide groove is located on the middle frame, and the slide rod is located on the front panel.

[0009] The slide groove is arranged on the middle frame, and the slide rod is arranged on the front panel. When the front panel is opened, the slide rod will slide in the slide groove, and the slide groove is fixed on the middle frame and remains stationary, which makes the sliding of the front panel smoother and more labor-saving.

[0010] Furthermore, the middle frame is provided with a first cross beam and a second cross beam, the first cross beam and the second cross beam are arranged on the middle frame in a horizontal direction, the first cross beam is located at the upper end of the front side of the middle frame, and the second cross beam is located at the lower end of the front side of the middle frame, and the slide groove is only arranged on the first cross beam or respectively arranged on the first cross beam and the second cross beam.

[0011] The slide groove is arranged on the first crossbeam or on the first crossbeam and the second crossbeam respectively, so that the front panel can slide left and right along the horizontal direction on the middle frame to open the front panel and expose the components on the front side of the middle frame. In addition, the slide groove is arranged on the crossbeam of the middle frame to improve the strength of the slide groove, thereby improving the connection strength between the front panel and the middle frame.

[0012] Furthermore, the slide groove is horizontally arranged on the front side of the middle frame, and the slide rod is horizontally arranged on the rear side of the front panel, and at least a part of the slide rod can be inserted into the slide groove and slide along the slide groove.

[0013] This allows the front panel to slide left and right in the horizontal direction to easily open the middle frame, and the slide groove is horizontally arranged on the front side of the middle frame, and the slide rod is horizontally arranged on the rear side of the front panel, so that the sliding structure between the front panel and the middle frame will not be exposed, affecting the appearance of the air conditioner.

[0014] Furthermore, the slide groove includes a first slide groove and a second slide groove, the first slide groove is located at the front side of the middle frame, the second slide groove is located inside the middle frame, the first slide groove and the second slide groove are connected, and the width a2 of the second slide groove is greater than the width a1 of the first slide groove.

[0015] The provision of the first sliding groove, the second sliding groove and the second sliding groove makes the front panel and the middle frame more tightly combined.

[0016] Furthermore, a first sliding block is arranged on the sliding rod, and after the front panel and the middle frame are assembled, the sliding rod is located in the first sliding groove, and the first sliding block can be slidably fixed in the second sliding groove.

[0017] By clamping the first sliding block with a larger width in the second sliding groove, the front panel is not likely to fall off or slide out of the sliding groove.

[0018] Furthermore, the slide bar or the slide block is provided with a plurality of positioning protrusions or positioning pits, and correspondingly, the side wall of the slide groove is provided with a plurality of positioning pits or positioning protrusions.

[0019] During the sliding of the sliding rod and the sliding block in the sliding groove, the positioning protrusion will intermittently slide into the positioning pit and then slide out of the positioning pit, so that the sliding between the front panel and the sliding groove will produce intermittent pauses. On the one hand, it makes it easier to control the sliding between the front panel and the middle frame, and it will not slide too fast, fall out or cause damage. On the other hand, it enables the front panel to stop at a specific position during the sliding process, making the sliding controllability of the front panel stronger.

[0020] Furthermore, a locking pin is provided between the middle frame and the front panel, and the locking pin is inserted into the sliding groove and the sliding rod to lock the sliding groove and the sliding rod.

[0021] The locking pin is inserted into the slide groove and the slide rod to lock the slide groove and the slide rod, thereby locking the front panel and the middle frame, so that the front panel and the middle frame cannot slide relative to each other when the locking pin is inserted, thereby preventing the front panel and the middle frame from accidentally sliding open and being damaged during transportation; or being slipped open by children and the like, causing personal injury or accidents.

[0022] Furthermore, the end of the locking pin exposed to the outside is covered with a shielding cover.

[0023] The shielding cover can prevent the locking pin from sliding out or falling off during transportation, and can also prevent the setting of the locking pin from affecting the appearance of the air conditioner.

[0024] The invention also discloses an air conditioner, which has the assembly structure of the front panel and the middle frame.

[0025] The advantages of the air conditioner described above and the assembly structure of the front panel and the middle frame described above compared with the prior art are the same and will not be described in detail here.

[0026] In summary, the assembly structure of the front panel and the middle frame and the air conditioner of the present invention have the advantages of simple structure, convenient assembly, and the front panel can be quickly opened to facilitate maintenance of the electric control box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the middle frame according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the assembly structure of the front panel and the middle frame according to an embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of the three-dimensional structure of the first crossbeam according to an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the three-dimensional structure of the first crossbeam from another perspective according to an embodiment of the present invention;

[0031] Figure 5 for Figure 4 A magnified schematic diagram of the local structure of the middle M region;

[0032] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of the AA section;

[0033] Figure 7 for Figure 4 Schematic diagram of the cross-sectional structure of the middle CC section;

[0034] Figure 8 for Figure 4 Schematic diagram of the cross-sectional structure of the middle DD section;

[0035] Fig. 9 It is a schematic diagram of the assembly structure of the slideway and the slide bar;

[0036] Fig.10 for Fig. 9 Schematic diagram of the cross-sectional structure of the GG section.

[0037] Description of reference numerals:

[0038] 1-middle frame, 11-first crossbeam, 111-slide groove, 1111-first slide groove, 1112-second slide groove, 1113-third slide groove, 112-installation groove, 12-second crossbeam, 13-third crossbeam, 14-fourth crossbeam, 15-electric control box installation position, 2-front panel, 21-slide rod, 22-slider, 221-first slide groove, 222-second slide groove, 23-positioning protrusion, 3-locking pin, 4-shielding cover. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] Embodiment 1, as Figures 1 to 10 As shown, an assembly structure of a front panel and a middle frame, the front side of the middle frame 1 is closed by the front panel 2, the front side of the middle frame 1 is provided with an electric control box mounting position 15, the electric control box is installed on the electric control box mounting position 15, the front panel 2 covers the electric control box, a slide groove 111 is provided on one of the middle frame 1 and the front panel 2, and a slide rod 21 is provided on the other, the slide rod 21 is slidably connected to the slide groove 111, so that the middle frame 1 and the front panel 2 are slidably connected.

[0041] The present application realizes a sliding connection between the middle frame 1 and the front panel 2 by respectively setting a sliding groove 111 and a sliding rod 21 on the middle frame 1 and the front panel 2, and realizing a sliding connection between the middle frame 1 and the front panel 2 through the sliding connection between the sliding rod 21 and the sliding groove 111, so that the front panel 2 can slide relative to the middle frame 1 to open the front panel 2, so that the front side of the middle frame 1 is exposed, which is convenient for users or maintenance personnel to check the components on the middle frame 1, especially the electric control box on the middle frame 1 can be exposed, so that the maintenance personnel can repair the electric control box.

[0042] Preferably, the slide groove 111 is located on the middle frame 1 , and the slide rod 21 is located on the front panel 2 .

[0043] The slide groove 111 is set on the middle frame 1, and the slide rod 21 is set on the front panel 2. When the front panel 2 is opened, the slide rod 21 will slide in the slide groove 111, and the slide groove 111 is fixed on the middle frame 1 and remains stationary, which makes the sliding of the front panel 2 smoother and more labor-saving.

[0044] As some embodiments of the present application, the middle frame 1 is provided with a first crossbeam 11 and a second crossbeam 12, the first crossbeam 11 and the second crossbeam 12 are arranged on the middle frame 1 in a horizontal direction, the first crossbeam 11 is located at the front upper end of the middle frame 1, and the second crossbeam 12 is located at the front lower end of the middle frame 1. The slide groove 111 can be arranged only on the first crossbeam 11, or can be arranged on the first crossbeam 11 and the second crossbeam 12 respectively.

[0045] The first crossbeam 11 is provided with a slide groove 111, so that the front panel 2 can slide left and right along the horizontal direction on the middle frame 1, so as to open the front panel 2 and expose the components on the front side of the middle frame 1. In addition, the slide groove 111 is provided on the crossbeam of the middle frame 1, so as to improve the strength of the slide groove 111, thereby improving the connection strength between the front panel 2 and the middle frame 1.

[0046] Preferably, the slide grooves 111 are respectively arranged in parallel on the first cross beam 11 and the second cross beam 12 .

[0047] The sliding grooves 111 are respectively arranged in parallel on the first crossbeam 11 and the second crossbeam 12 , so that the upper and lower sides of the front panel 2 are slidably connected to the middle frame 1 , making the sliding of the front panel 2 more stable and smooth.

[0048] As some embodiments of the present application, the middle frame 1 is provided with a third cross beam 13 and a fourth cross beam 14, and the third cross beam 13 and the fourth cross beam 14 are respectively arranged in parallel along the vertical direction at both ends of the front side of the middle frame 1. The slide groove 111 can be arranged only on the third cross beam 13 or the fourth cross beam 14, and can also be arranged on the third cross beam 13 and the fourth cross beam 14 in parallel.

[0049] The sliding grooves 111 are provided on the third cross beam 13 and the fourth cross beam 14 , so that the front panel 2 can slide up and down along the vertical direction on the middle frame 1 to open the front panel 2 and expose the components on the front side of the middle frame 1 .

[0050] As a preferred embodiment of the present application, the slide groove 111 is arranged in parallel on the first cross beam 11 and the second cross beam 12 .

[0051] Example 2

[0052] In order to further achieve the purpose of simple assembly structure and convenient assembly between the front panel 2 and the middle frame 1, and the front panel 2 can be quickly opened to facilitate the maintenance of the electric control box, on the basis of Example 1, the assembly structure of the front panel and the middle frame is further optimized.

[0053] Specifically, Figures 1 to 10As shown, the slide groove 111 is horizontally arranged in parallel at the front side of the first cross beam 11 and the second cross beam 12. The slide bar 21 is horizontally arranged in parallel at the rear side of the front panel 2, and at least part of the slide bar 21 can be inserted into the slide groove 111 and slide along the slide groove 111.

[0054] Further, such as Figures 6 to 8 As shown, the slide groove 111 includes a first slide groove 1111 and a second slide groove 1112, the first slide groove 1111 is located at the front side of the first crossbeam 11 and the second crossbeam 12, the second slide groove 1112 is located inside the first crossbeam 11 and the second crossbeam 12, the first slide groove 1111 and the second slide groove 1112 are connected, and the width a2 of the second slide groove 1112 is greater than the width a1 of the first slide groove 1111. Correspondingly, a slider 22 is provided on the slide bar 21, and the slider 22 includes a first slider 221. The slide bar 21 is a strip structure corresponding to the internal space of the first slide groove 1111, and the shape of the slider 22 is corresponding to the internal space of the second slide groove 1112. When the front panel 2 and the middle frame 1 are assembled, the slide bar 21 is located in the first slide groove 1111, and the slider 22 is located in the second slide groove 1112.

[0055] By clamping the slider 22 with a larger width in the second slide groove 1112 , the front panel 2 is not easy to fall off or slide out of the slide groove 111 .

[0056] Preferably, the slide bar 21 and the slider 22 extend along the axial direction of the slide slot 111, i.e., the length direction, and the length of the slide bar 21 is greater than the length of the slider 22. More preferably, the length of the slide bar 21 in the horizontal direction is equal to the length of the front panel 2 in the horizontal direction, and the length of the slider 22 in the horizontal direction is equal to 1 / 5 to 1 / 20 of the length of the front panel 2 in the horizontal direction.

[0057] At this time, the slider 22 is connected to the rear side of the front panel 2 through the slide rod 21, and the front panel 2 slides through the sliding of the slider 22 in the second slide groove 1112 and the sliding of the slide rod 21 in the first slide groove 1111. Since the slide rod 21 is relatively long, the connection strength and connection stability between the front panel 2 and the slide rod 21 are relatively high, and the length of the slider 22 is relatively short, so that the sliding of the front panel 2 is smoother and lighter.

[0058] Further, one or both ends of the first slide groove 1111 in the horizontal direction penetrate and communicate with the interior of the first slide groove 1111, so that the slide bar 21 can slide out of the first slide groove 1111 to achieve the sliding of the front panel 2. The second slide groove 1112 and the third slide groove 1113 have groove walls at both ends in the horizontal direction, so that the first slider 221 and the second slider 222 can only slide in the second slide groove 1112 and the third slide groove 1113.

[0059] Furthermore, the slide groove 111 also includes a third slide groove 1113, and the third slide groove 1113 is located on a side of the second slide groove 1112 away from the first slide groove 1111, and the third slide groove 1113 is connected to the second slide groove 1112, and the width a3 of the third slide groove 1113 is smaller than the width a2 of the second slide groove 1112. Correspondingly, the slider 22 includes a first slider 221 and a second slider 222, and the shape of the first slider 221 is set corresponding to the second slide groove 1112, and the shape of the second slider 222 is set corresponding to the third slide groove 1113.

[0060] Through the cooperation between the first slider 221 and the second slider 222 , the position of the slider 22 in the slide groove 111 is more stable, so that the front panel 2 is less likely to deviate and shake during the sliding process, and the sliding is more stable.

[0061] Preferably, the first slide groove 1111, the second slide groove 1112 and the third slide groove 1113 are arranged and connected in a stepped manner, and the first slide groove 1111, the second slide groove 1112 and the third slide groove 1113 are vertically overlapped with the symmetry axis of the groove bottom surface, so that the slide groove 111 is an axisymmetric structure.

[0062] The structural arrangement of the first slide groove 1111, the second slide groove 1112 and the third slide groove 1113 makes the slide groove 111 easy to prepare and shape.

[0063] As some embodiments of the present application, the slider 22 is located in the middle of the slide rod 21 in the horizontal direction, which enables the front panel 2 to slide to the left or right, but at this time, the front panel 2 can only be partially opened to the left or right, exposing some components on the middle frame 1.

[0064] As some embodiments of the present application, the slider 22 is located at one end of the slide rod 21 in the horizontal direction, which enables the front panel 2 to slide to the left or right. At this time, the front panel 2 can slide to the left or right so that the components on the middle frame 1 are completely exposed.

[0065] As some embodiments of the present application, the slider 22 can slide relative to the slide bar 21. If another slot is provided on the slide bar 21, the slider 22 is partially engaged in the slot and can slide along the slot. At this time, the front panel 2 is not limited by the position of the slider 22 and can slide to the left or right to fully open the front panel 2.

[0066] Furthermore, the slide bar 21 or the slide block 22 is provided with a plurality of positioning protrusions 23 or positioning pits, and correspondingly, the side wall of the slide groove 111 is provided with a plurality of positioning pits or positioning protrusions 23.

[0067] Preferably, the positioning protrusions 23 and the positioning recesses are evenly spaced apart in the horizontal direction.

[0068] During the sliding process of the sliding rod 21 and the sliding block 22 in the sliding groove 111, the positioning protrusion 23 will intermittently slide into the positioning pit and then slide out of the positioning pit, so that the sliding between the front panel 2 and the sliding groove 111 will produce intermittent pauses. On the one hand, it makes it easier to control the sliding between the front panel 2 and the middle frame 1, and it will not slide too fast, fall out or cause damage. On the other hand, it enables the front panel 2 to stop at a specific position during the sliding process, making the sliding controllability of the front panel 2 stronger.

[0069] As a preferred embodiment of the present application, the positioning protrusion 23 is a hemispherical or semi-cylindrical protrusion, and correspondingly, the positioning pit is a hemispherical or semi-cylindrical depression.

[0070] Furthermore, a mounting groove 112 is provided on the slide groove 111 , and the width and length of the mounting groove 112 are both greater than or equal to the width and length of the slider 22 , so that the slider 22 can be installed in the slide groove 111 through the mounting groove 112 .

[0071] Further, such as Figure 8 As shown, a locking pin 3 is further provided between the middle frame 1 and the front panel 2, and the locking pin 3 is inserted into the slide groove 111 and the slide rod 21 to lock the slide groove 111 and the slide rod 21, thereby locking the front panel 2 and the middle frame 1, so that the front panel 2 and the middle frame 1 cannot slide relative to each other when the locking pin 3 is inserted, thereby preventing the front panel 2 and the middle frame 1 from accidentally sliding apart and being damaged during transportation; or being slipped apart by children, etc., causing personal injury or accidents.

[0072] Furthermore, if Figure 8As shown, the lock pin 3 is vertically inserted into the slide slot 111 from one side wall of the slide slot 111, and after passing through the slide rod 21, the end portion is inserted into the blind hole provided on the other side wall of the slide slot 111 to lock the front panel 2. When assembling, the front panel 2 can be locked by simply closing the front panel 2 and inserting the lock pin 3 into the blind hole. When using, the front panel 2 can be unlocked by simply pulling out the lock pin 3, which is convenient and quick.

[0073] Preferably, Figures 4-5 As shown, the exposed end of the lock pin 3 is covered with a shielding cover 4, which can prevent the lock pin 3 from sliding out or falling off during transportation. At the same time, the setting of the lock pin 3 can also be avoided to affect the appearance of the air conditioner.

[0074] As some embodiments of the present application, one side of the shielding cover 4 is rotatably connected to the side wall opening of the slide groove 111 through a rotating shaft, and the other side is engaged with the side wall opening of the slide groove 111 through a hook or the like. When in use, the shielding cover 4 is opened by pressing the buckle, the locking pin 3 is taken out, and the front panel 2 can be slid.

[0075] As some embodiments of the present application, the shielding cover 4 can also be fixed to the side wall opening of the slide slot 111 by magnetic force, such as the locking pin 3 is made of magnetic materials such as iron, and the shielding cover 4 is made of a magnet or a magnet is provided on the shielding cover 4.

[0076] As some embodiments of the present application, the shielding cover 4 may also be a soft rubber plug, which is inserted into the side wall opening of the slide groove 111 through elastic deformation to achieve the function of sealing and covering the locking pin 3.

[0077] In addition, an air conditioner is also provided, which has the assembly structure of the front panel and the middle frame.

[0078] In summary, it is not difficult to conclude that the assembly structure of the front panel and the middle frame and the air conditioner described in the present application have the advantages of simple structure, convenient assembly, and the front panel can be quickly opened, making it convenient to inspect and repair the electric control box.

[0079] Although the present invention is disclosed as above, the present invention is not limited thereto. In the description of this specification, the description of reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. An assembly structure of a front panel and a middle frame, wherein an electric control box of an air conditioner is mounted on the front side of the middle frame (1), and the front panel (2) covers the electric control box, characterized in that: A slide groove (111) is provided on one of the middle frame (1) and the front panel (2), and a slide rod (21) is provided on the other, and the slide rod (21) can be slidably inserted into the slide groove (111), so that the middle frame (1) and the front panel (2) can be slidably connected; the slide groove (111) is located on the middle frame (1), and the slide rod (21) is located on the front panel (2); a first cross beam (11) and a second cross beam (12) are provided on the middle frame (1), and the first cross beam (11) and the second cross beam (12) are arranged on the middle frame (1) in a horizontal direction, the first cross beam (11) is located at the upper end of the front side of the middle frame (1), and the second cross beam (12) is located at the upper end of the front side of the middle frame (1), and the second cross beam (12) is located at the upper end of the front side of the middle frame (1). At the lower front end of the middle frame (1), the slide groove (111) is only arranged on the first cross beam (11) or is respectively arranged on the first cross beam (11) and the second cross beam (12); the slide groove (111) is arranged on the front side of the middle frame (1) in the horizontal direction, and the slide rod (21) is arranged on the rear side of the front panel (2) in the horizontal direction, and at least part of the slide rod (21) can be inserted into the slide groove (111) and slide along the slide groove (111); a locking pin (3) is also arranged between the middle frame (1) and the front panel (2), and the locking pin (3) is inserted into the slide groove (111) and the slide rod (21) to lock the slide groove (111) and the slide rod (21).

2. The assembly structure of the front panel and the middle frame according to claim 1, characterized in that: The slide groove (111) comprises a first slide groove (1111) and a second slide groove (1112), the first slide groove (1111) being located at the front side of the middle frame (1), the second slide groove (1112) being located inside the middle frame (1), the first slide groove (1111) and the second slide groove (1112) being connected, and a width a2 of the second slide groove (1112) being greater than a width a1 of the first slide groove (1111).

3. The assembly structure of the front panel and the middle frame according to claim 2, characterized in that: A first sliding block (221) is provided on the sliding rod (21); after the front panel (2) and the middle frame (1) are assembled, the sliding rod (21) is located in the first sliding groove (1111), and the first sliding block (221) can be slidably fixed in the second sliding groove (1112).

4. The assembly structure of the front panel and the middle frame according to claim 1, characterized in that: The slide bar (21) or the slide block (22) is provided with a plurality of positioning protrusions (23) or positioning recesses, and correspondingly, the side wall of the slide groove (111) is provided with a plurality of positioning recesses or positioning protrusions (23).

5. The assembly structure of the front panel and the middle frame according to claim 1, characterized in that: The end of the locking pin (3) exposed to the outside is covered with a shielding cover (4).

6. An air conditioner, comprising the assembly structure of the front panel and the middle frame according to any one of claims 1 to 5.

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