Split structure for easy air conditioner duct forming

Abstract

This utility model relates to a split structure for facilitating the molding of air conditioner ducts. It includes a duct body for mounting on a ventilation opening in the base of an air conditioner. The sidewall of the duct body has four radially outwardly protruding U-shaped connecting seats evenly distributed along the circumference. The upper end of the duct body has an outwardly turned annular flange with an arc-shaped cross-section. Four notches corresponding to the U-shaped connecting seats are spaced circumferentially on the annular flange, and inserts for sealing the notches are inserted into these notches. This structure helps reduce the difficulty of the duct molding process.

Description

Technical Field

[0001] This utility model relates to a split structure that facilitates the molding of air conditioner ducts. Background Technology

[0002] Evaporative air coolers utilize the principle of water evaporation and heat absorption to achieve rapid cooling. To output cool air, a fan (consisting of a motor and fan blades) needs to be installed on the base of the evaporative air cooler. The fan is typically mounted on an air duct and connected to a vent on the base. To secure the air duct to the base, existing air ducts have several radially protruding mounting seats spaced apart on their side walls. The base plate of the mounting seats is then connected to the base of the air cooler using vertical bolts. Because the top of the air duct usually has an annular flange for connecting to the motor bracket, the upper end of the mounting seats is closed. This type of air duct requires several corresponding side core pulls in the mold during molding, increasing the complexity of the mold and the difficulty of the air duct molding process, and also hindering operations such as tightening bolts. Utility Model Content

[0003] The purpose of this invention is to provide a split structure that facilitates the forming of air conditioner ducts, which helps to reduce the difficulty of the forming process.

[0004] The technical solution of this utility model is as follows: a split structure that facilitates the forming of an air conditioner duct, including a duct body for installation on the ventilation opening of the air conditioner base, four radially outward protruding U-shaped connecting seats are evenly distributed on the side wall of the duct body along the circumferential direction, and an outwardly turned annular flange with an arc-shaped cross-section is provided at the upper end of the duct body. Four notches corresponding to the U-shaped connecting seats are provided on the annular flange along the circumferential direction, and inserts for sealing the notches are inserted into the notches.

[0005] Furthermore, both sides of the U-shaped connector are provided with L-shaped plates that protrude to the side and are connected to the annular flange at their upper ends. The horizontal part of the L-shaped plate forms a stepped surface, and slots are vertically provided on the stepped surface. Hook plates that pass through the slots are provided on both sides of the lower end of the insert.

[0006] Furthermore, the lower inner end of the insert is provided with a support surface that abuts against the upper end of the notch, and the lower side of the support surface is provided with a limiting protrusion that extends downward and is located in the U-shaped connecting seat.

[0007] Furthermore, the bottom surface of the U-shaped connector is provided with bolt holes for bolts to pass through and connect to the base of the air cooler.

[0008] Furthermore, the outer wall of the main body of the air duct is provided with several limiting protrusions at intervals along the circumferential direction, and the lower end of the limiting protrusions is used to abut against the upper end of the annular seat provided on the ventilation port of the air cooler base.

[0009] Furthermore, a snap-fit ​​ridge is provided at the lower end of one of the limiting convex edges, and a boss is provided on the annular seat on the air vent of the air cooler base, and a slot for snap-fitting the ridge is provided on the boss.

[0010] Furthermore, the main body of the air duct has three protrusions evenly distributed along the circumferential direction on the top surface of the annular flange for connecting with the motor bracket.

[0011] Furthermore, the main body and inserts of the air duct are made of plastic.

[0012] Compared with existing technologies, this utility model has the following advantages: By setting an insert on the upper side of the U-shaped connecting seat of the air duct, the insert and the air duct body can be injection molded separately during the air duct molding process, simplifying the air duct molding and effectively reducing the difficulty of the air duct molding process. It reduces the number of side core pulls or eliminates the need for them, allowing the air duct body to be removed through normal mold separation of the moving and fixed molds, reducing the complexity of the air duct molding mold and lowering mold costs. Simultaneously, it also facilitates the installation of bolts on the U-shaped connecting seat when the air duct is installed on the air cooler base. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the present invention;

[0015] Figure 3 This is a partial enlarged view of the ventilation duct of this utility model;

[0016] Figure 4 This is a cross-sectional view of the insert and U-shaped connecting seat of this utility model.

[0017] Figure 5 This is a schematic diagram showing the interaction between the air duct, the cooler base, and the motor of this utility model.

[0018] Figure 6 For the present utility model Figure 5 AA section view;

[0019] Figure 7 For the present utility model Figure 5 BB section view;

[0020] Figure 8 For the present utility model Figure 5 CC section view;

[0021] In the diagram: 1-Air cooler base; 1a-Slot; 1b-Annular seat; 1c-Boss; 1d-Fixing seat; 10-Air duct body; 11-Annular flange; 12-Notch; 13-Limiting protrusion; 14-Snap-fit ​​protrusion; 15-Protrusion; 16-Bolt hole; 20-U-shaped connector; 21-L-shaped plate; 22-Slot; 23-Bolt hole; 24-Step surface; 30-Inlay; 31-Hook plate; 32-Support surface; 33-Limiting protrusion. Detailed Implementation

[0022] To make the above-mentioned features and advantages of this utility model more easily understood, specific embodiments are described below in conjunction with the accompanying drawings, but this utility model is not limited thereto.

[0023] refer to Figures 1 to 8

[0024] A split-type structure for easy air conditioner duct molding includes a duct body 10 for mounting on the ventilation opening of an air conditioner base 1. The sidewall of the duct body has four radially outwardly protruding U-shaped connecting seats 20 evenly distributed along the circumference. The upper end of the duct body has an outwardly turned annular flange 11 with an arc-shaped cross-section. Four notches 12 corresponding to the U-shaped connecting seats are spaced circumferentially on the annular flange. Inserts 30 for sealing the notches are inserted into these notches. By using inserts on the upper side of the U-shaped connecting seats, and separately injection molding the inserts and the duct body, the duct molding process eliminates the need for side core pulling or reduces the number of cores required, thus reducing the complexity of the duct molding mold and simplifying the molding process. It also improves the aesthetics of the duct and avoids notches on the annular flange.

[0025] In this embodiment, in order to connect the insert with the U-shaped connecting seat, the upper ends of both sides of the U-shaped connecting seat are provided with L-shaped plates 21 that protrude to the side and are connected to the annular flange as a whole. The horizontal part of the L-shaped plate forms a stepped surface 24, and a slot 22 is provided vertically on the stepped surface. The lower ends of both sides of the insert are provided with hook plates 31 that pass through the slots.

[0026] In this embodiment, in order to achieve the limiting position during the installation of the insert, the lower inner end of the insert is provided with a support surface 32 that abuts against the upper end of the notch, and the lower side of the support surface is provided with a limiting protrusion 33 that extends downward and is located in the U-shaped connecting seat.

[0027] In this embodiment, in order to connect the U-shaped connector to the fixed seat 1d on the air cooler base, the bottom surface of the U-shaped connector is provided with bolt holes 23 so that bolts can be threaded through and screwed to the connecting boss on the air cooler base.

[0028] In this embodiment, in order to limit the axial movement when the duct body is connected to the air cooler base, the outer wall of the duct body is provided with a number of limiting protrusions 13 at intervals along the circumferential direction. The lower end of the limiting protrusion is used to abut against the upper end of the annular seat 1b provided on the air vent of the air cooler base, thereby increasing the contact points between the duct body and the annular seat and improving the strength of the duct.

[0029] In this embodiment, in order to facilitate circumferential positioning when the air duct body is connected to the annular seat, a snap-fit ​​protrusion 14 is provided at the lower end of one of the limiting protrusions, and a boss 1c is provided on the annular seat on the air vent of the air cooler base. A slot 1a for snap-fit ​​protrusion is provided on the boss.

[0030] In this embodiment, in order to facilitate the installation of the motor for driving the fan blades, three protrusions 15 for connecting to the motor bracket are evenly distributed along the circumferential direction on the top surface of the annular flange of the main body of the air duct. The protrusions are provided with bolt holes 16 so that bolts can be passed through and the motor bracket can be locked with nuts.

[0031] In this embodiment, the main body of the air duct and the insert are made of plastic, which reduces the weight of the air cooler and facilitates injection molding.

[0032] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting or welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0033] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0034] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0035] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A split structure for easy forming of an air conditioner duct, comprising a duct body for mounting on a vent on the base of an air conditioner, characterized in that, The sidewall of the main body of the air duct has four radially outward protruding U-shaped connecting seats evenly distributed along the circumference. The upper end of the main body of the air duct is provided with an outwardly turned annular flange with an arc-shaped cross-section. The annular flange has four notches corresponding to the U-shaped connecting seats spaced along the circumference. The notches are fitted with inserts to seal the notches.

2. The split structure for easy forming of air conditioner ducts according to claim 1, characterized in that, The upper ends of both sides of the U-shaped connector are provided with L-shaped plates that protrude to the side and are connected to the annular flange at the upper end. The horizontal part of the L-shaped plate forms a stepped surface, and slots are provided vertically on the stepped surface. Hook plates that pass through the slots are provided on the lower ends of both sides of the insert.

3. The split structure for easy forming of air conditioner ducts according to claim 1 or 2, characterized in that, The lower inner end of the insert is provided with a support surface that abuts against the upper end of the notch, and the lower side of the support surface is provided with a limiting protrusion that extends downward and is located in the U-shaped connecting seat.

4. The split structure for easy forming of air conditioner ducts according to claim 1 or 2, characterized in that, The bottom surface of the U-shaped connector is provided with bolt holes for bolts to pass through and connect to the base of the air cooler.

5. The split structure for easy forming of air conditioner ducts according to claim 1, characterized in that, The outer wall of the air duct body is provided with several limiting protrusions at intervals along the circumferential direction. The lower end of the limiting protrusions is used to abut against the upper end of the annular seat provided on the ventilation port of the air cooler base.

6. The split structure for easy forming of air conditioner ducts according to claim 5, characterized in that, A snap-fitting protrusion is provided at the lower end of one of the limiting protrusions, and a boss is provided on the annular seat on the air vent of the air cooler base. The boss is provided with a slot for the snap-fitting protrusion to be inserted.

7. The split structure for facilitating the forming of air conditioner ducts according to claim 1, 2, 5 or 6, characterized in that, The main body of the air duct has three protrusions evenly distributed along the circumference on the top surface of the annular flange for connecting with the motor bracket.

8. The split structure for easy forming of air conditioner ducts according to claim 1, characterized in that, The main body and inserts of the air duct are made of plastic.

Images