CN210951583U - A kind of installation mechanism of PTC electric heater of indoor unit air supply duct - Google Patents

Abstract

The utility model relates to the technical field of air-conditioning indoor units, in particular to an installation mechanism for a PTC electric heater of an indoor unit air supply duct, comprising an air-conditioning indoor unit. The front and rear ends of the air-conditioning indoor unit are respectively connected with a square air inlet duct and a The air outlet pipe, the outermost end of the air outlet pipe is sleeved with a heating sleeve, the rear end of the heating sleeve is sleeved with an air supply pipe, a number of PTC electric heaters are arranged inside the heating sleeve, and the left and right inner sides of the heating sleeve are sleeved. A bracket is welded between the two limit frames, and both ends of the PTC electric heater are snap-fitted with the bracket. In the utility model, an air outlet pipe and an air supply pipe are arranged at one end of the air conditioner indoor unit, and a heating sleeve is sheathed between the air outlet pipe and the air supply pipe, and a plurality of PTC electric heaters are fixed inside the heating sleeve. The support seat under the pipe can also play the role of supporting the air outlet pipe and the air supply pipe. It is convenient to install the PTC electric heater and easy to replace at any time.

Description

A kind of installation mechanism of PTC electric heater of indoor unit air supply duct

technical field

The utility model relates to the technical field of air-conditioning indoor units, in particular to an installation mechanism for a PTC electric heater of an indoor unit air supply duct.

Background technique

The indoor unit of the central air-conditioning system does not have an auxiliary electric heating device. Due to the poor heating effect of the central air-conditioning system in winter, in order to improve the heating capacity of the indoor unit of the air-conditioning unit in winter, a ceramic PTC electric heater is installed on the air supply duct of the indoor unit of the air-conditioning unit to solve the problem. The central air-conditioning system does not perform well in heating the air-conditioned room in winter. However, when the PTC electric heater is installed, it is directly fixed in one end of the air supply pipe and then bolted to the indoor unit, which is more troublesome to install, and it is inconvenient to replace the PTC electric heater after it is damaged. In view of this, we propose an installation mechanism for the PTC electric heater of the indoor unit air supply duct.

Utility model content

The purpose of the present utility model is to provide an installation mechanism for a PTC electric heater of an indoor unit air supply duct, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the utility model provides the following technical solutions:

An installation mechanism for a PTC electric heater of an indoor unit air supply duct, including an air conditioner indoor unit, the front and rear ends of the air conditioner indoor unit are respectively connected with a square air inlet duct and an air outlet duct through bolts, and the air outlet duct is The outermost end is sleeved with a heating sleeve, the rear end of the heating sleeve is sleeved with an air supply pipe, a number of PTC electric heaters are arranged inside the heating sleeve, and the heating sleeve is a square tube with an inner side. A limit frame is welded near the front and rear ends, a bracket is welded on the left and right inner sides of the heating sleeve and between the two limit frames, and the two ends of the PTC electric heater are snap-fitted with the bracket , the top surface of the heating sleeve is symmetrically provided with waist-shaped holes near the front and rear ends, the center of the top surface of the heating sleeve is provided with a wire hole, and the top surface of the air outlet pipe is symmetrically welded with threads near the rear end. The outer side of the threaded column is connected with a limit hook, and the bottom surface of one end of the limit hook is provided with a limit column that is inserted into the waist-shaped hole.

Preferably, the bottom surface of the other end of the limit hook is provided with a convex column, the center of the top surface of the convex column is provided with a through hole passing through the limit hook, and the through hole is sleeved with the threaded column and connected by a nut .

Preferably, an L-shaped lifting block is provided on the top surface of one end of the limiting hook.

Preferably, a threaded column is also welded on the top surface of the front end of the air supply pipe, and a limit hook is connected to the threaded column.

Preferably, the bracket is in a concave shape, and the power cord of the PTC electric heater is placed outside through the wire hole.

Preferably, a support seat is provided below the heating sleeve, a round tube is symmetrically welded on the top surface of the support seat, and the top end of the round tube is welded with the heating sleeve.

Compared with the prior art, the beneficial effects of the present utility model:

The installation mechanism of the PTC electric heater of the air supply duct of the indoor unit is that the air outlet pipe and the air supply pipe are arranged at one end of the air conditioner indoor unit, and the heating sleeve is sheathed between the air outlet pipe and the air supply pipe. Several PTC electric heaters are fixed inside, and then the limit hooks on the air outlet pipe and the air supply pipe port are hooked to the heating sleeve, so that the three are connected as a whole and firmly, and the support seat under the heating sleeve is also It can play the role of supporting the air outlet pipe and the air supply pipe. It is convenient to install the PTC electric heater and easy to replace at any time.

Description of drawings

Fig. 1 is the overall assembly structure schematic diagram of the present utility model;

Fig. 2 is the overall exploded view of the utility model;

Fig. 3 is the structural representation of the air inlet pipe part of the utility model;

Figure 4 is a schematic diagram of the structure of the air supply pipe part of the present invention;

Fig. 5 is the structural schematic diagram of the limit hook of the present invention;

6 is a schematic diagram of the assembly structure of the heating jacket and the PTC electric heater of the present invention;

FIG. 7 is a schematic diagram of the structure of the heating jacket of the present invention.

The meanings of the symbols in the figure are:

1. Air conditioner indoor unit; 10. Air inlet pipe; 11. Air outlet pipe; 12. Air supply pipe; 13. Air outlet; 14. Threaded post; 15. Limit hook; 150. Post; 151. Through hole; 152 , Limit column; 153, Lifting block; 2, Heating sleeve; 20, Limit frame; 21, Bracket; 22, Waist hole; 23, Line hole; 24, Support seat; 3, PTC electric heater .

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "centerline", "longitudinal", "lateral", "length", "width", "thickness", "depth", "upper" , "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" The orientation or positional relationship indicated by , "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific Therefore, it cannot be understood as a limitation to the present invention. In addition, in the description of the present invention, "several" means two or more, unless otherwise clearly defined. .

Please refer to Fig. 1-Fig. 7, the utility model provides a technical solution:

An installation mechanism for a PTC electric heater in an indoor unit air supply duct, in order to facilitate the disassembly and assembly of the PTC electric heater in the air duct, the inventor has provided an air outlet duct 11 , an air supply duct 12 and a heating sleeve 2 . It includes an air-conditioning indoor unit 1, and the front and rear ends of the air-conditioning indoor unit 1 are respectively connected with a square air inlet pipe 10 and an air outlet pipe 11 through bolts. The outermost end of the air outlet pipe 11 is sleeved with a heating sleeve 2, the rear end of the heating sleeve 2 is sleeved with an air supply pipe 12, and an air outlet 13 is installed on one side of the air inlet pipe 10 and the air supply pipe 12. In and out. The air supply pipe 12 is used to lead to the room that needs to be heated, and its end is fixed on the wall by bolts. A number of PTC electric heaters 3 are arranged inside the heating sleeve 2, which release heat when energized. The heating sleeve 2 is a square tube with a limit frame 20 welded on the inner side near the front and rear ends to limit the continuous insertion of the air inlet pipe 10 and the air outlet pipe 11 , leaving space for the PTC electric heater 3 . A bracket 21 is welded on the left and right inner sides of the heating sleeve 2 and located between the two limiting frames 20 , and the two ends of the PTC electric heater 3 are snap-fitted with the bracket 21 , so that it can be placed stably. The top surface of the heating sleeve 2 and near the front and rear ends are symmetrically provided with waist-shaped holes 22, the center of the top surface of the heating sleeve 2 is provided with a wire hole 23, and the top surface of the air outlet pipe 11 is symmetrically welded with a threaded column 14 near the rear end. , the outer side of the threaded column 14 is connected to the limit hook 15, and the bottom surface of one end of the limit hook 15 is provided with a limit column 152 that is inserted into the waist hole 22, so that the air inlet pipe 10, the air outlet pipe 11 and the heating sleeve 2 are connected. As a whole, does not slip.

In this embodiment, the limiting hook 15 is made of ABS material into an integrally formed structure, which has good toughness and rigidity, making it durable.

Further, the bottom surface of the other end of the limit hook 15 is provided with a convex column 150, and the center of the top surface of the convex column 150 is provided with a through hole 151 penetrating the limit hook 15. The through hole 151 is sleeved with the threaded column 14 and connected by a nut. The limiting hook 15 can be rotated around the threaded column 14, so that the limiting hook 15 can be easily retracted.

Specifically, one end of the limit hook 15 is provided with an L-shaped lifting block 153. Since the limit hook 15 is a plastic product, it has a certain elasticity. 152 is separated from the waist-shaped hole 22, and then it can be rotated toward the middle of the air outlet duct 11 or the air supply duct 12. Since the length of the waist-shaped hole 22 is greater than the outer diameter of the limiting column 152, the limiting column 152 can not be lifted when it is lifted. will interfere.

Specifically, the top surface of the front end of the air supply pipe 12 is also welded with a threaded column 14, and the threaded column 14 is connected with a limit hook 15, so that the air supply pipe 12 and the heating sleeve 2 can also be disassembled.

In addition, the bracket 21 is in a concave shape, which is convenient for holding the PTC electric heater 3, and the power cord of the PTC electric heater 3 is placed outside through the wire hole 23, which is convenient for inserting the plug of the power cord into the power interface to energize , so that it works to dissipate heat.

What needs to be added is that a support seat 24 is provided below the heating sleeve 2, and the top surface of the support seat 24 is symmetrically welded with a round tube and the top of the round tube is welded with the heating sleeve 2, so that the heating sleeve 2 is placed stably, which is convenient for installation operation.

When the installation mechanism of the PTC electric heater of the indoor unit air supply duct of the present invention is in use, the two ends of the PTC electric heater 3 are clamped into the bracket 21, and the power cord is passed through the wire hole 23 to move as a whole. The front end of the heating sleeve 2 is inserted into the rear port of the air inlet pipe 10, and then the front end of the air supply pipe 11 is sleeved into the rear port of the heating sleeve 2. At this time, turn the limit hook 15 and pinch the lifting block 153. Lift, align the limit post 152 with the waist-shaped hole 22, and then release your hand, the limit hook 15 will return to the horizontal state, that is, the limit post 152 will smoothly bounce into the waist-shaped hole 22, so that the air inlet duct 10 and the air outlet duct 11 and the heating sleeve 2 are connected as a whole, and do not slip; when the PTC electric heater 3 needs to be replaced or repaired, pinch the lifting block 153 and lift it up, so that the limit post 152 on the air supply pipe 12 is separated from the waist-shaped hole 22, Then, the limit hook 15 is rotated toward the middle of the air supply pipe 12, and then the air supply pipe 12 is pulled out and separated from the heating sleeve 2, and the PTC electric heater 3 can be taken out for replacement.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Under the premise of the spirit and scope, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides an installation mechanism of indoor unit supply-air duct's PTC electric heater, includes indoor set of air conditioner (1), the front and back end of indoor set of air conditioner (1) is connected with square air-supply line (10) and play tuber pipe (11) respectively through the bolt, its characterized in that: the air-conditioning fan is characterized in that a heating sleeve (2) is sleeved at the outermost end of the air outlet pipe (11), an air supply pipe (12) is sleeved at the rear end of the heating sleeve (2), a plurality of PTC electric heaters (3) are arranged inside the heating sleeve (2), the heating sleeve (2) is a square pipe, the inner side of the heating sleeve (2) is welded with a limit frame (20) near the front end, the left inner side and the right inner side of the heating sleeve (2) are positioned between two limit frames (20), brackets (21) are welded between the limit frames (20), the two ends of the PTC electric heaters (3) are in clamping fit with the brackets (21), waist-shaped holes (22) are symmetrically formed in the top surface of the heating sleeve (2) near the front end, wire holes (23) are formed in the center of the top surface of the air outlet pipe (11), threaded columns (14) are symmetrically welded at the rear end, and limit hooks (15), and a limiting column (152) spliced with the waist-shaped hole (22) is arranged on the bottom surface of one end of the limiting hook (15).

2. An installation mechanism of a PTC electric heater of an indoor unit air supply duct according to claim 1, wherein: the other end bottom surface of spacing hook (15) is equipped with projection (150), through-hole (151) that run through spacing hook (15) are seted up at the top surface center of projection (150), through-hole (151) with threaded column (14) cup joint and are connected through the nut.

3. An installation mechanism of a PTC electric heater of an indoor unit air supply duct according to claim 1, wherein: and an L-shaped lifting block (153) is arranged on the top surface of one end of the limiting hook (15).

4. An installation mechanism of a PTC electric heater of an indoor unit air supply duct according to claim 1, wherein: the top surface of the front end of the blast pipe (12) is also welded with a threaded column (14), and the threaded column (14) is connected with a limiting hook (15).

5. An installation mechanism of a PTC electric heater of an indoor unit air supply duct according to claim 1, wherein: the bracket (21) is concave, and a power line of the PTC electric heater (3) penetrates through the line hole (23) and is arranged outside.

6. An installation mechanism of a PTC electric heater of an indoor unit air supply duct according to claim 1, wherein: the below of heating sleeve (2) is provided with supporting seat (24), the top surface symmetrical welding of supporting seat (24) has the top of pipe and pipe with heating sleeve (2) welding.

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