Auxiliary electric heating device of central air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses a central air conditioner auxiliary electric heating device which comprises an electric heating shell, a fixing ring is fixedly connected to the inner side wall of the electric heating shell, a connecting piece is clamped in the fixing ring, and a heating pipe is fixedly connected to the left side of the connecting piece. A rotating ring is rotatably connected to the interior of the electric heating shell, a material scraping piece abutting against the outer side of the heating pipe is fixedly connected to the outer side of the rotating ring, a motor is fixedly connected to the interior of the electric heating shell, and a worm is fixedly connected to an output shaft of the motor; and a worm wheel meshed with the worm is arranged on the outer side of the rotating ring, and a discharging pipe is fixedly connected to the bottom of the electric heating shell. The auxiliary electric heating device of the central air conditioner has the advantages that water scale on the outer side of the heating pipe is scraped, the heating pipe is convenient to disassemble and assemble, and the heating pipe is convenient to maintain and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a central air-conditioning auxiliary electric heating device. Background Technique

[0002] An air-conditioning auxiliary electric heater, also known as an auxiliary electric heater or electric auxiliary, is a component of the central air-conditioning water circulation system. When users use the central air conditioner for heating in winter, due to the low outdoor temperature, the heating effect of the central air-conditioning unit will be greatly attenuated. If relying solely on the working efficiency of the central air-conditioning unit, it cannot meet the heating demand. To better meet the heating demand of users, an auxiliary heater needs to be added on the basis of the central air-conditioning unit.

[0003] When the existing central air-conditioning auxiliary electric heating device is in use, it generally heats the water inside the electric heater housing through a heating pipe. After long-term use, scale is likely to form on the heating pipe. The scale affects the heating of the heating pipe. After the heating pipe is used for a period of time, it is likely to be damaged and needs to be repaired or replaced. The heating pipe is usually not easy to disassemble, which affects the efficiency of repair or replacement. Therefore, a central air-conditioning auxiliary electric heating device is proposed to solve the above-mentioned problems. Content of the Utility Model

[0004] (1) Solved Technical Problem

[0005] In view of the deficiencies of the prior art, the utility model provides a central air-conditioning auxiliary electric heating device, which has the advantages of removing the scale on the outer side of the heating pipe, and the heating pipe is easy to disassemble and install, etc., and solves the problems that the heating pipe heats the water inside the electric heater housing, scale is likely to form on the heating pipe after long-term heating, the scale affects the heating of the heating pipe, the heating pipe is likely to be damaged after being used for a period of time and needs to be repaired or replaced, and the heating pipe is usually not easy to disassemble, which affects the efficiency of repair or replacement.

[0006] (2) Technical Solution

[0007] The technical solution of the utility model to solve the above technical problems is as follows: a central air-conditioning auxiliary electric heating device, including an electric heating housing, a fixed ring is fixedly connected to the inner side wall of the electric heating housing, a connecting piece is clamped inside the fixed ring, a heating pipe is fixedly connected to the left side of the connecting piece, a rotating ring is rotatably connected to the inside of the electric heating housing, a scraping member that abuts against the outer side of the heating pipe is fixedly connected to the outer side of the rotating ring, a motor is fixedly connected to the inside of the electric heating housing, a worm is fixedly connected to the output shaft of the motor, a worm gear that meshes with the worm is arranged on the outer side of the rotating ring, a discharge pipe is fixedly connected to the bottom of the electric heating housing, and a valve is arranged inside the discharge pipe.

[0008] The beneficial effects of the utility model are:

[0009] This central air-conditioning auxiliary electric heating device has the advantages of scraping the scale on the outer side of the heating pipe, facilitating the disassembly and installation of the heating pipe, and facilitating the maintenance and replacement of the heating pipe.

[0010] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0011] Further, a round hole is opened inside the fixed ring, a first spring is fixedly connected to the outer side of the connecting member, a engaging member is fixedly connected to the end of the first spring away from the connecting member, and the engaging member is engaged with the round hole.

[0012] Further, a second spring is fixedly connected inside the fixed ring, a clamping groove is fixedly connected to the left side of the second spring, and a clamping block engaged with the clamping groove is fixedly connected to the right side of the connecting member.

[0013] Further, a heat preservation layer is arranged outside the electric heating housing, a water inlet pipe is fixedly connected to the top of the electric heating housing, and a water outlet pipe located on the left side of the water inlet pipe is fixedly connected to the top of the electric heating housing.

[0014] The beneficial effect of adopting the above further scheme is that the heat preservation layer makes the heat inside the electric heating housing not easily dissipated, water is added into the electric heating housing through the water inlet pipe, and the water inside the electric heating housing is discharged from the water outlet pipe.

[0015] Further, a support frame is fixedly connected to the bottom of the electric heating housing, a connection shell is fixedly connected to the left side of the electric heating housing, and an overheat protector located inside the connection shell is fixedly connected to the left side of the electric heating housing.

[0016] The beneficial effect of adopting the above further scheme is to protect the heating of the heating pipe and prevent the internal components from being damaged due to too high heating temperature of the heating pipe.

[0017] Further, a float switch is fixedly connected to the inner top wall of the electric heating housing, and an alarm connected to the float switch is fixedly connected to the top of the electric heating housing.

[0018] The beneficial effect of adopting the above further scheme is to prevent the heating pipe from dry burning, facilitate timely discovery of faults, repair the air-conditioning system, extend the service life, and improve the safety of the entire electric heating system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a front sectional view of the structure of the present utility model;

[0021] Figure 3 This is a schematic structural diagram of the float switch of the present utility model;

[0022] Figure 4 This is a schematic structural diagram of the connecting piece of the present utility model.

[0023] In the figure: 1, electric heating outer shell; 2, fixing ring; 3, connecting piece; 4, heating pipe; 5, rotating ring; 6, scraping piece; 7, valve; 8, round hole; 9, first spring; 10, engaging piece; 11, second spring; 12, card slot; 13, card block; 14, heat preservation layer; 15, water inlet pipe; 16, water outlet pipe; 17, support frame; 18, connecting shell; 19, overheat protector; 20, float switch; 21, alarm; 22, motor; 23, discharge pipe; 24, worm; 25, worm gear. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] In the embodiment, it is given by Figures 1-4 A central air-conditioning auxiliary electric heating device, the present utility model includes an electric heating outer shell 1, a fixing ring 2 is fixedly connected to the inner side wall of the electric heating outer shell 1, a connecting piece 3 is clamped inside the fixing ring 2, a heating pipe 4 is fixedly connected to the left side of the connecting piece 3, a rotating ring 5 is rotatably connected to the inside of the electric heating outer shell 1, a scraping piece 6 that abuts against the outer side of the heating pipe 4 is fixedly connected to the outer side of the rotating ring 5, a motor 22 is fixedly connected to the inside of the electric heating outer shell 1, a worm 24 is fixedly connected to the output shaft of the motor 22, a worm gear 25 that meshes with the worm 24 is arranged on the outer side of the rotating ring 5, a discharge pipe 23 is fixedly connected to the bottom of the electric heating outer shell 1, and a valve 7 is arranged inside the discharge pipe 23.

[0026] When there is a lot of scale on the outer side of the heating pipe 4, start the motor 22, the motor 22 drives the worm 24 to rotate, the worm 24 drives the worm gear 25 to rotate, the worm gear 25 drives the rotating ring 5 to rotate, the rotating ring 5 drives the scraping piece 6 to rotate, and the scale on the outer side of the heating pipe 4 is cleaned. Open the valve 7, and the scale flows out of the electric heating outer shell 1 through the discharge pipe 23. When the heating pipe 4 needs to be replaced, pull the heating pipe 4 to the left, the connecting piece 3 is separated from the fixing ring 2, and the heating pipe 4 is taken out. When repairing the heating pipe 4, press the heating pipe 4 inward, and the heating pipe 4 drives the connecting piece 3 to engage with the fixing ring 2, that is, the installation is completed.

[0027] Specifically, refer toFigure 4 , a circular hole 8 is provided inside the fixing ring 2, a first spring 9 is fixedly connected to the outside of the connecting member 3, a engaging member 10 is fixedly connected to the end of the first spring 9 away from the connecting member 3, and the engaging member 10 is engaged with the circular hole 8.

[0028] In this embodiment, when the heating tube 4 needs to be removed, the heating tube 4 is pulled outwards, the first spring 9 is stretched, driving the engaging member 10 to separate from the circular hole 8. When the heating tube 4 needs to be installed, the heating tube 4 is pushed towards the inside of the fixing ring 2, the heating tube 4 drives the connecting member 3 to slide to the right, the connecting member 3 drives the first spring 9 to slide to the right, and the first spring 9 drives the engaging member 10 to slide to the right until the engaging member 10 is engaged with the circular hole 8.

[0029] Specifically, referring to Figure 4 , a second spring 11 is fixedly connected to the inside of the fixing ring 2, a clamping groove 12 is fixedly connected to the left side of the second spring 11, and a clamping block 13 engaged with the clamping groove 12 is fixedly connected to the right side of the connecting member 3.

[0030] In this embodiment, when the heating tube 4 is pushed towards the inside of the fixing ring 2, the heating tube 4 drives the connecting member 3 to slide to the right, the connecting member 3 drives the clamping block 13 to slide to the right, and the clamping block 13 is engaged with the clamping groove 12, and the second spring 11 is first compressed and then restored.

[0031] Specifically, referring to Figure 2 , a heat preservation layer 14 is provided outside the electric heating shell 1, a water inlet pipe 15 is fixedly connected to the top of the electric heating shell 1, and a water outlet pipe 16 located on the left side of the water inlet pipe 15 is fixedly connected to the top of the electric heating shell 1.

[0032] In this embodiment, the heat preservation layer 14 prevents the heat inside the electric heating shell 1 from being easily dissipated. Water is added into the electric heating shell 1 through the water inlet pipe 15, and the water inside the electric heating shell 1 is discharged from the water outlet pipe 16.

[0033] Specifically, referring to Figure 2 , a support frame 17 is fixedly connected to the bottom of the electric heating shell 1, a connection shell 18 is fixedly connected to the left side of the electric heating shell 1, and an overheat protector 19 located inside the connection shell 18 is fixedly connected to the left side of the electric heating shell 1.

[0034] In this embodiment, the heating of the heating tube 4 is protected to prevent the internal components from being damaged due to the overheating of the heating tube 4.

[0035] Specifically, referring to Figure 2 and Figure 3 , a float switch 20 is fixedly connected to the inner top wall of the electric heating shell 1, and an alarm 21 connected to the float switch 20 is fixedly connected to the top of the electric heating shell 1.

[0036] In this embodiment, when the water level inside the electric heating housing 1 is relatively low, the float switch 20 activates to send a signal to the circuit, thereby cutting off the power supply. At the same time, the alarm 21 is connected to issue an alarm, preventing the heating pipe 4 from dry burning, facilitating the timely detection of faults, overhauling the air-conditioning system, extending the service life, and improving the safety of the entire electric heating system.

[0037] Working principle:

[0038] First: When there is a lot of scale on the outer side of the heating pipe 4, the motor 22 is started. The motor 22 drives the worm 24 to rotate, the worm 24 drives the worm gear 25 to rotate, the worm gear 25 drives the rotating ring 5 to rotate, and the rotating ring 5 drives the scraping member 6 to rotate to clean the scale on the outer side of the heating pipe 4. The valve 7 is opened, and the scale flows out of the electric heating housing 1 through the discharge pipe 23.

[0039] Then: When the heating pipe 4 needs to be removed, the heating pipe 4 is pulled outwards, and the first spring 9 stretches, driving the engaging member 10 to separate from the round hole 8. When the heating pipe 4 needs to be installed, the heating pipe 4 is pushed towards the inside of the fixing ring 2. The heating pipe 4 drives the connecting member 3 to slide to the right, the connecting member 3 drives the first spring 9 to slide to the right, and the first spring 9 drives the engaging member 10 to slide to the right until the engaging member 10 engages with the round hole 8.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A central air-conditioning auxiliary electric heating device, comprising an electric heating housing (1), characterized in that: The inner side wall of the electric heating shell (1) is fixedly connected to a fixing ring (2), a connecting piece (3) is engaged inside the fixing ring (2), a heating tube (4) is fixedly connected to the left side of the connecting piece (3), a rotating ring (5) is rotatably connected inside the electric heating shell (1), a scraper (6) that contacts the outer side of the heating tube (4) is fixedly connected to the outer side of the rotating ring (5), a motor (22) is fixedly connected to the inner side of the electric heating shell (1), a worm (24) is fixedly connected to the output shaft of the motor (22), a worm wheel (25) meshing with the worm (24) is arranged on the outer side of the rotating ring (5), a discharge pipe (23) is fixedly connected to the bottom of the electric heating shell (1), a valve (7) is arranged inside the discharge pipe (23).

2. A central air-conditioning auxiliary electric heating device according to claim 1, characterized in that: A circular hole (8) is provided inside the fixing ring (2); a first spring (9) is fixedly connected to the outer side of the connecting member (3); a clamping member (10) is fixedly connected to the end of the first spring (9) away from the connecting member (3); and the clamping member (10) is clamped with the circular hole (8).

3. A central air-conditioning auxiliary electric heating device according to claim 1, characterized in that: A second spring (11) is fixedly connected inside the fixing ring (2), a clamping groove (12) is fixedly connected to the left side of the second spring (11), and a clamping block (13) engaged with the clamping groove (12) is fixedly connected to the right side of the connecting member (3).

4. A central air-conditioning auxiliary electric heating device according to claim 1, characterized in that: The outside of the electric heating shell (1) is provided with a heat-insulating layer (14), the top of the electric heating shell (1) is fixedly connected to a water inlet pipe (15), and the top of the electric heating shell (1) is fixedly connected to a water outlet pipe (16) located on the left side of the water inlet pipe (15).

5. The central air-conditioning auxiliary electric heating device according to claim 1, characterized in that: The bottom of the electric heating shell (1) is fixedly connected to a support frame (17), the left side of the electric heating shell (1) is threadedly connected to a connecting shell (18), and the left side of the electric heating shell (1) is fixedly connected to an overheating protector (19) located inside the connecting shell (18).

6. A central air-conditioning auxiliary electric heating device according to claim 1, characterized in that: A float switch (20) is fixedly connected to the inner top wall of the electric heating shell (1), and an alarm (21) connected to the float switch (20) is fixedly connected to the top of the electric heating shell (1).

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