CN209857343U - Connection structure between middle frame and lower base and air conditioner - Google Patents

Abstract

The utility model provides a connection structure between a middle frame and a lower base and an air conditioner. The connection structure between the middle frame and the lower base includes a first connection part arranged at the upper edge of the air outlet of the middle frame and a first connection part arranged at the lower base. The upper air outlet channel, the first connecting part includes a protruding structure, and the top end of the protruding structure abuts against one end of the upper air outlet channel, so that a point and a joint are formed between the middle frame and the lower base. surface mating connections. In the connection structure between the middle frame and the lower base provided by the utility model, by setting the first connecting part at the upper edge of the air outlet of the middle frame, the surface-to-surface connection between the upper edge of the air outlet of the middle frame and the lower base is connected. , optimized as a point-to-surface connection; the contact area between the upper edge of the air outlet of the middle frame and the lower base is greatly reduced, thereby reducing the vibration transmission area between the middle frame and the lower base, and thus effectively reducing the air conditioner's working time. The noise generated in the process improves the user experience.

Description

Connection structure between middle frame and lower base and air conditioner

technical field

The utility model relates to the technical field of air conditioning equipment, in particular to a connection structure between a middle frame and a lower base and an air conditioner.

Background technique

In the existing wall-mounted indoor units, the middle frame of the air conditioner is connected to the lower base. The connection between the upper edge of the air outlet of the middle frame and the upper air outlet channel of the base usually adopts the gap between the surfaces. , when the surface is matched with the surface, the two are basically completely attached at the joint, resulting in a large contact area at the joint, and a large friction area due to vibration during the working process. Therefore, when the air conditioner is running, it will produce a large noise.

Utility model content

In view of this, the utility model aims to propose a connection structure between the middle frame and the lower base to solve the problem of high noise in the existing air conditioner.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

A connection structure between a middle frame and a lower base, comprising a first connecting portion arranged at the upper edge of the air outlet of the middle frame and an upper air outlet channel arranged on the lower base, the first connecting portion includes a protruding structure, the The top end of the protruding structure abuts against one end of the upper air outlet channel, so that a point-to-surface fit connection is formed between the middle frame and the lower base.

Further, the connecting structure between the middle frame and the lower base also includes a second connecting part arranged on the upper air outlet channel, and a limiting part arranged on the raised structure (14), the first The two connecting parts cooperate with the limiting part to limit the lower base.

Further, it is characterized in that the limiting portion includes a slot, the second connecting portion includes a connecting rib, and the slot fits with the connecting rib.

Further, the opening end of the card slot faces the inner side of the middle frame, and the groove wall of the card slot is parallel to the lower bottom surface of the middle frame.

Further, the first connecting portion further includes a cross reinforcement rib, and one end of the cross reinforcement rib is fixedly connected to the side wall of the slot.

Further, a guide surface is provided at the joint between the cross reinforcing rib and the slot, and the guide surface is suitable for guiding the connecting rib to snap into the slot.

Further, there are multiple first connecting parts, and the multiple first connecting parts are arranged along the length direction of the air outlet of the middle frame.

Further, the connecting ribs are arranged along the length direction of the air outlet channel of the lower base, and fixedly connect the two ends of the air outlet channel of the lower base in the length direction.

Further, the protruding structure is cylindrical, conical or truncated-conical.

Compared with the prior art, the connection structure between the middle frame and the lower base of the utility model has the following advantages:

(1) In the connection structure between the middle frame and the lower base provided by the utility model, by setting the first connecting part at the upper edge of the air outlet of the middle frame, the surface between the upper edge of the air outlet of the existing middle frame and the lower base is connected with the The surface connection is optimized as a point-to-surface connection; the contact area between the upper edge of the air outlet of the middle frame and the lower base is greatly reduced, thereby reducing the vibration transmission area between the middle frame and the lower base, thereby effectively reducing the air conditioner. The noise generated by the device during work improves the user experience.

(2) The utility model is provided with a second connecting part at the upper air outlet channel of the lower base, and is provided with a card slot on the first connecting part that snap-fits with the second connecting part, so as to realize the upper edge of the air outlet of the middle frame and the upper edge of the air outlet of the middle frame. In addition to the point-to-surface fit between the air outlet channels on the lower base, it also has the function of limiting and fixing; it strengthens the connection stability between the middle frame and the lower base, and reduces the relative friction between the middle frame and the lower base during the operation of the air conditioner. Vibration further reduces working noise.

Another purpose of the present utility model is to provide an air conditioner to solve the problem in the prior art that the air conditioner generates a lot of noise during operation.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

An air conditioner, comprising any one of the connection structures between the middle frame and the lower base described above.

Compared with the prior art, the connection structure of the air conditioner and the above-mentioned middle frame and lower base has the same advantages, which will not be repeated here.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is the structural representation of the air conditioner described in the utility model;

Fig. 2 is a structural schematic diagram of the connection method between the upper edge of the air outlet of the middle frame and the lower base described in Embodiment 1;

Figure 3 is an enlarged view of A in Figure 1;

Fig. 4 is a structural schematic diagram of the middle frame described in the utility model;

Figure 5 is an enlarged view at C in Figure 4;

Fig. 6 is a structural schematic diagram of the lower base described in the utility model;

Fig. 7 is an enlarged view at B of Fig. 6;

Fig. 8 is a partial structural schematic diagram of the middle frame of the present invention.

Explanation of reference signs:

1-middle frame, 11-air outlet, 12-upper edge of air outlet, 13-first connecting part, 14-protruding structure, 15-card slot, 16-cross reinforcement rib, 17-guiding surface, 3-lower base , 31-upper air outlet channel, 32-connecting surface, 33-second connecting part.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In addition, a brief description of the orientation involved in this specific embodiment: the following refers to "front", "rear", "upper", "lower", "left", "right", " The direction or positional relationship indicated by "top", "bottom", etc. refers to the orientation or positional relationship shown in the drawings; these positional relationships are only for the convenience and simplification of description, not to indicate or imply that the referred device must Having a particular orientation, being constructed and operating in a particular orientation, and therefore not to be construed as limiting the invention. In this utility model, "outside" refers to the side of the middle frame close to the user when the air conditioner is in use, and "inside" refers to the side of the middle frame away from the user when the air conditioner is in use.

The above-mentioned and other technical features and advantages of the utility model patent will be described in more detail below in conjunction with the accompanying drawings.

Example 1

As shown in Figure 1-2, this embodiment provides a connection structure between the middle frame and the lower base, which is suitable for connecting the middle frame 1 and the lower base 3 of the air conditioner, including the upper edge 12 of the air outlet of the middle frame 1 The first connecting part 13 and the upper air outlet channel 31 provided on the lower base 3, the first connecting part 13 includes a raised structure 14, and the top end of the raised structure 14 abuts against one end of the upper air outlet channel 31, so that the middle frame 1 A point-to-surface fit connection is formed with the lower base 3 .

When the air conditioner is in operation, the various components operate together, which will inevitably cause vibration, which in turn will generate vibration noise, such as the vibration transmission between the middle frame 1 and the lower base 3, etc. These noises will affect the user experience. In the existing air conditioners, since the middle frame 1 is a long and wide plastic part, due to its own characteristics, the structural strength at the air outlet 11 is relatively weak, so it is easier to generate vibration during use. The air outlet of the middle frame 1 When the connection between the upper edge 12 and the upper air outlet channel 31 of the lower base 3 adopts surface-to-surface clearance fit, the contact area between the middle frame 1 and the lower base 3 is larger, and the friction surfaces that rub against each other due to shaking are also relatively large. Large, causing the air conditioner to produce a large working noise.

In order to effectively reduce the noise generated between the middle frame 1 and the lower base 3, a connection structure between the middle frame and the lower base is provided in this embodiment, by setting the first connection at the edge 12 of the air outlet of the middle frame 1 portion 13 , and make the first connecting portion 13 contact with the upper air outlet channel 31 of the lower base 3 . Wherein, the first connecting portion 13 includes a protruding structure 14, which is formed on the side of the upper edge 12 of the air outlet of the middle frame 1 facing the inside of the middle frame 1, so that in the assembled state, the top end of the protruding structure 14 It abuts against the end of the upper air outlet channel 31 of the lower base 3 close to the middle frame 1 . The protruding structure 14 can be arranged at a position with strong vibration between the air outlet 11 of the middle frame 1 and the lower base 3 . As shown in FIG. 2 , the top of the raised structure 14 is the end away from the upper edge 12 of the air outlet. In the assembled state of the middle frame 1 and the lower base 3 , the free end of the upper air outlet channel 31 and the raised structure 14 are far away from the outlet. One end of the upper edge 12 of the tuyere is in contact, and under the action of an external force, the upper air outlet channel 31 and the raised structure 14 are squeezed, so that the top of the raised structure 14 and the upper air outlet channel 31 are close to the end of the middle frame 1 butt together.

Preferably, the number of the first connecting portion 13 is multiple, that is, the number of the protruding structure 14 is multiple, and the multiple first connecting portion 13 is along the length direction of the air outlet 11 of the middle frame 1 (that is, as shown in FIG. 4 shown in the left and right directions), so as to avoid insufficient connection strength between the upper edge 12 of the air outlet of the middle frame 1 and the lower base 3 due to too small contact area. By arranging a plurality of protruding structures 14 evenly along the side of the upper edge 12 of the air outlet close to the inside of the middle frame 1 , not only the noise reduction effect can be improved, but also the sealing between the middle frame 1 and the lower base 3 can be improved.

Preferably, the protruding structure 14 is cylindrical, conical or truncated conical. Preferably, the protruding structure 14 is conical, that is, the protruding structure 14 has a smooth arc-shaped top, which can ensure that the middle frame On the basis of the connection strength between the middle frame 1 and the lower base 3, the contact area between the two is further reduced, thereby reducing the noise generated during the working process of the middle frame 1 and the lower base 3. In addition, since the upper edge 12 of the air outlet of the middle frame 1 abuts against the upper air outlet channel 31 of the lower base 3, the load is concentrated at the position of the protruding structure 14, so the protruding structure 14 needs to meet a certain strength requirement, which can The shape of the protruding structure 14 is determined according to the actual stress situation, as long as the upper edge 12 of the air outlet of the middle frame 1 and the air outlet channel 31 on the lower base 3 are connected by point and surface.

In the connection structure between the middle frame and the lower base provided in this embodiment, the first connecting portion 13 is provided at the upper edge 12 of the air outlet of the middle frame 1, and the upper edge 12 of the air outlet of the existing middle frame 1 is connected to the lower base 3. The surface-to-surface connection between them is optimized as a point-to-surface connection; the contact area between the upper edge 12 of the air outlet of the middle frame 1 and the lower base 3 is greatly reduced, thereby reducing the distance between the middle frame 1 and the lower base 3 The vibration transmission area between them effectively reduces the noise generated by the air conditioner during the working process and improves the user experience.

Example 2

As shown in Figures 1-2, the difference between this embodiment and the above-mentioned embodiments is that the connecting structure between the middle frame and the lower base also includes a second connecting portion 33 arranged at the upper air outlet channel 31 of the lower base 3, and a second connecting portion 33 arranged at the The limiting portion on the protruding structure 14 , the second connecting portion 33 cooperates with the limiting portion on the protruding structure 14 to limit the lower base 3 .

Specifically, as shown in FIGS. 4-5 , the first connecting portion 13 includes a protruding structure 14 , and the protruding structure 14 is provided with a limiting portion, and the limiting portion has an open end. 6-7, the second connection portion 33 is arranged on the connection surface 32 of the upper air outlet passage 31 of the lower base 3, and the connection surface 32 is located along the length direction of the air outlet passage (ie, the left and right direction as shown in FIG. 4 ). ), and close to the upper edge 12 of the air outlet, after the middle frame 1 and the lower base 3 are fitted in place, the second connecting part 33 is inserted into the first connecting part 13 from the opening end of the limiting part, thereby restricting the lower base 3 bit. The limiting part can limit and stop the second connecting part 33, so that the middle frame 1 and the lower base 3 are relatively fixed. A point-to-surface connection is formed between them to reduce working noise, and it can also increase the reliability of the connection between the middle frame 1 and the lower base 3, further avoiding abnormal noise when the air conditioner is working, and improving the comfort of the air conditioner.

Preferably, the limiting part includes a slot 15, the second connecting part 33 includes a connecting rib, and the slot 15 is snap-fitted to the connecting rib. That is, the protruding structure 14 of the first connecting portion 13 is provided with a card slot 15, the card slot 15 is located on the air outlet of the middle frame 1 along the edge 12 and opened towards the direction of the lower base 3, and the connecting rib is arranged on the connecting surface of the lower base 3 32 and protrudes toward the direction of the middle frame 1; when the middle frame 1 and the lower base 3 are assembled, the connecting ribs on the lower base 3 are just snapped into the slots 15 of the middle frame 1. In this way, the point-surface cooperation between the upper edge 12 of the air outlet of the middle frame 1 and the upper air outlet channel 31 of the lower base 3 has a position-limiting and fixing effect, which strengthens the structural stability of the middle frame 1 and the lower base 3, and reduces The relative vibration between the middle frame 1 and the lower base 3 during the operation of the air conditioner reduces working noise; at the same time, it can also avoid deformation of the weak strength of the air outlet 11 of the middle frame 1 after long-term use.

Preferably, as shown in Figure 1 and Figure 8, when the air conditioner is installed on the wall, the lower bottom surface of the middle frame is the lower surface perpendicular to the wall. The opening end of the card slot 15 faces the inner side of the middle frame 1 , and the groove wall of the card slot 15 is parallel to the bottom surface of the middle frame 1 . The card slot 15 is a groove whose bottom is close to the upper edge 12 of the air outlet, and due to the installation characteristics of the middle frame 1 and the lower base 3, when the opposite side walls of the card slot 15 are parallel to the lower bottom surface of the middle frame 1, in itself Under the action of gravity, the connecting rib on the lower base 3 can be better snapped into the slot 15, so that the top wall of the connecting rib fits closely with the bottom of the slot 15, further improving the stability of the connection between the middle frame 1 and the lower base 3 sex.

Preferably, the connecting ribs are arranged along the length direction of the air outlet passage of the lower base 3 (that is, the left and right directions in FIG. 6 ), and are fixedly connected to the two ends of the air outlet passage of the lower base 3 in the length direction. That is to say, the length of the connecting rib is equivalent to the length of the air outlet 11 of the middle frame 1, and the slots 15 evenly distributed in the length direction of the air outlet 11 can be snapped together with the connecting rib, so that the connection between the connecting rib and the slot 15 more reliable.

It can be understood that there is no limitation on the shape of the connecting rib, as long as it satisfies a perfect fit with the slot 15 . The top wall and side wall of the connecting rib can also be rounded, which is convenient for installation and is not easy to cause damage to the card slot 15 during the assembly process.

The connection structure between the middle frame and the lower base provided in this embodiment is realized by providing the second connecting portion 33 on the lower base 3 and providing the first connecting portion 13 with a card slot 15 that snaps and fits with the second connecting portion 33 The upper edge 12 of the air outlet of the middle frame 1 and the air outlet channel 31 on the lower base 3 not only have a point-to-surface fit, but also have a position-limiting and fixing function; the connection stability between the middle frame 1 and the lower base 3 is strengthened, and the The relative vibration generated between the middle frame 1 and the lower base 3 during the operation of the air conditioner further reduces working noise.

Example 3

As shown in FIG. 5 , the difference between this embodiment and the above embodiments is that the first connecting portion 13 further includes a cross reinforcement rib 16 , and one end of the cross reinforcement rib 16 is fixedly connected to the side wall of the slot 15 . The cross rib 16 is used to enhance the structural strength of the slot 15 .

Specifically, the cross reinforcing rib 16 is located at the upper edge 12 of the air outlet of the middle frame 1 , and is fixedly connected to the side of the card slot 15 away from the air outlet 11 . The cross reinforcement rib 16 includes a reinforcement section perpendicular to the side wall of the card slot 15 and a connecting section parallel to the side wall of the card slot 15, that is, the connecting section is parallel to the length direction of the air outlet 11 of the middle frame 1, and the reinforcement section is perpendicular to the middle frame 1 in the lengthwise direction of the air outlet 11.

Preferably, as shown in FIG. 3 and FIG. 5 , a guide surface 17 is provided at the connection between the cross reinforcing rib 16 and the side wall of the slot 15 , and the guide surface 17 is suitable for guiding the connecting rib to snap into the slot 15 . The guide surface 17 is inclined in a direction away from the air outlet 11 relative to the sidewall of the locking slot 15 , and an obtuse angle is formed between the guiding surface 17 and the sidewall of the locking slot 15 . During the assembly process of the middle frame 1 and the lower base 3, the second connecting part 33 on the lower base 3 can slide into the slot 15 along the guide surface 17, so that the second connecting part 33 can be easily locked on the first connecting part 13. hold or leave.

Preferably, the cross reinforcing rib 16 and the card slot 15 are integrally formed as an integral part, for example, integral injection molding can be adopted. Such setting reduces the cost of parts processing and manufacturing and the assembly of the air conditioner, and further improves the structural strength of the first connecting portion 13 .

The connection structure between the middle frame and the lower base provided in this embodiment can improve the structural strength of the card slot 15 by setting the cross reinforcement rib 16 on the side wall of the card slot 15, and avoid damage to the card slot 15 after long-term use , prolonging the service life of the middle frame 1 .

Example 4

An air conditioner, comprising the connection structure between the above-mentioned middle frame and the lower base.

The air conditioner of this embodiment adopts the connection structure of the above-mentioned middle frame and the lower base. By setting the first connecting part 13 at the upper edge 12 of the air outlet of the middle frame 1, the upper edge 12 of the air outlet of the existing middle frame 1 is connected to the lower The surface-to-surface connection between the bases 3 is optimized as a point-to-surface connection; the contact area between the upper edge 12 of the air outlet of the middle frame 1 and the lower base 3 is greatly reduced, thereby reducing the size of the middle frame 1 and the lower base 3 The vibration transmission area between them effectively reduces the noise generated by the air conditioner during the working process and improves the user experience.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (10)

1. The utility model provides a connection structure of center and lower base, its characterized in that, is including setting up first connecting portion (13) and last air-out passageway (31) of setting at lower base (3) of edge (12) department on the air outlet of center (1), first connecting portion (13) are including protruding structure (14), the top of protruding structure (14) with go up air-out passageway (31) one end butt, so that center (1) with form between lower base (3) and be connected with the cooperation of face.

2. The connecting structure of the middle frame and the lower base according to claim 1, further comprising a second connecting portion (33) disposed on the upper air outlet channel (31), and a limiting portion disposed on the protruding structure (14), wherein the second connecting portion (33) is engaged with the limiting portion to limit the lower base (3).

3. The connecting structure of the middle frame and the lower base according to claim 2, wherein the limiting portion comprises a clamping groove (15), the second connecting portion (33) comprises a connecting rib, and the clamping groove (15) is matched with the connecting rib in a clamping manner.

4. The connection structure of the middle frame and the lower base according to claim 3, wherein the open end of the slot (15) faces the inside of the middle frame (1), and the slot wall of the slot (15) is parallel to the lower bottom surface of the middle frame (1).

5. The connection structure of the middle frame and the lower base according to claim 3 or 4, wherein the first connection portion (13) further comprises a cross reinforcing rib (16), and one end of the cross reinforcing rib (16) is fixedly connected with the side wall of the clamping groove (15).

6. A connection structure of a middle frame and a lower base according to claim 5, characterized in that the joint of the cross reinforcement rib (16) and the slot (15) is provided with a guide surface (17), and the guide surface (17) is suitable for guiding the connection rib to be clamped into the slot (15).

7. The connecting structure of the middle frame and the lower base according to any one of claims 1 to 4, wherein the number of the first connecting portions (13) is plural, and the plural first connecting portions (13) are arranged along the length direction of the air outlet (11) of the middle frame (1).

8. The connecting structure of the middle frame and the lower base according to claim 3, wherein the connecting rib is arranged along the length direction of the air outlet channel of the lower base (3) and fixedly connected with two ends of the lower base (3) in the length direction of the air outlet channel.

9. A connection structure of a middle frame and a lower base according to claim 2, characterized in that the protruding structure (14) is cylindrical, conical or truncated cone-shaped.

10. An air conditioner characterized by comprising the connection structure of the middle frame and the lower base as set forth in any one of claims 1 to 9.