CN211503022U - Outdoor unit of air conditioner - Google Patents
Outdoor unit of air conditioner Download PDFInfo
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- CN211503022U CN211503022U CN202020018147.4U CN202020018147U CN211503022U CN 211503022 U CN211503022 U CN 211503022U CN 202020018147 U CN202020018147 U CN 202020018147U CN 211503022 U CN211503022 U CN 211503022U
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- electric heating
- protective net
- heat exchanger
- outdoor unit
- air conditioner
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Abstract
The utility model discloses an air condensing units, include: control circuit, air condensing units's casing, heat exchanger and defroster in the casing, control circuit include temperature detect circuit and controller, and the heat exchanger includes heat exchange tube and fin, and its characteristics are: the defrosting device comprises an electric heating protective net arranged on one side of the heat exchanger and is used for protecting the heat exchanger and defrosting the heat exchanger. The electric heating protective net is in a net shape formed by electric heating wires, and the controller is connected with the electric heating wires of the electric heating protective net through an electric heating element and controls the electric heating protective net to heat to defrost the heat exchanger. The utility model carries out defrosting based on the improvement of hardware, has simple structure and is easy to realize; the system control software does not need to be changed, defrosting does not need to be stopped, and heating of the indoor air conditioner is not influenced.
Description
Technical Field
The utility model relates to an air conditioning equipment relates to the outer quick-witted defrosting configuration of air conditioner and improves, a air condensing units defroster and air condensing units specifically says so.
Background
In order to meet the requirement of comfort of people in indoor life and work, the air conditioner is quite commonly used at present. Air conditioners are generally classified into an integral type air conditioner and a split type air conditioner, wherein the split type air conditioner is widely used, the split type air conditioner generally comprises an air conditioner indoor unit and an air conditioner outdoor unit, and a heat exchanger of the air conditioner outdoor unit is frosted when the outdoor temperature is lower than zero degree in the use process, so that the heat exchanger of the outdoor unit needs to be defrosted by adopting a defrosting technology.
In the prior art, the heat exchanger of the existing outdoor unit basically performs defrosting by means of a system control mode and depending on the heat exchanger, defrosting is performed by means of a non-stop mode in some cases, and defrosting is performed by means of a stop mode in some cases.
However, none of the above-mentioned prior arts is satisfactory in terms of defrosting effect. There are major problems: firstly, the defrosting time is long, and secondly, the defrosting is not clean; and the defrosting by adopting the shutdown mode also influences the heating of the indoor air conditioner.
Chinese patent No. CN201821532547.6 provides a heating sheet assembly, an outdoor unit of an air conditioner, and an air conditioner. The heating sheet assembly comprises a plurality of heating sheets, wherein the heating sheets are used for heating and defrosting the heat exchanger, and any two adjacent heating sheets in the plurality of heating sheets are movably connected, so that the heating sheet assembly has an unfolded first state and a folded second state. Can fold when the heat exchanger need not the defrosting, guarantee the heat transfer air volume of heat exchanger, expand and defrost the heat exchanger when the heat exchanger frosts and guarantee the heat exchange efficiency of heat exchanger.
The structure of the defrosting device is complex, and the heating plate assembly needs to be unfolded or folded, so that the defrosting device is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve among the prior art long and the unclean problem of defrosting time, the invention the utility model provides an air condensing units, its improvement based on hardware defrosts, its simple structure, and it is easy to realize, and system control software need not the change, and the defrosting also need not to shut down, can not influence indoor air conditioner and heats.
In order to achieve the purpose, the invention adopts the following technical scheme:
the present invention provides an outdoor unit of an air conditioner, comprising:
the control circuit comprises a temperature detection circuit and a controller and is used for controlling a normal operation mode and a defrosting mode of the air conditioner;
the air conditioner outdoor unit comprises a shell, wherein an air inlet is formed in the back of the shell;
a heat exchanger in the housing;
the defrosting device comprises an electric heating protective net arranged on one side of the heat exchanger and is used for protecting the heat exchanger and defrosting the heat exchanger;
the electric heating protective net is in a net shape formed by electric heating wires, the controller is connected with the electric heating wires of the electric heating protective net through an electric heating element and controls the electric heating protective net to heat the heat exchanger for defrosting.
Further, the electric heating element comprises an electric heating substrate and a power supply plate, wherein the power supply plate is connected with the electric heating substrate;
the electric heating device comprises an electric heating substrate and is characterized in that an L terminal and an N terminal are arranged on the electric heating substrate, and the upper end and the lower end of the electric heating protective net are respectively connected with the L terminal and the N terminal on the electric heating substrate through two wires.
Furthermore, two wires connecting the controller and the electric heating substrate are connected with a leakage protector, and the electric heating substrate and the leakage protector are arranged in an electric box;
when an electric shock occurs, the leakage protector can trip, so that the electric heating wire is powered off.
Furthermore, the diameter of the electric heating wires is 4-6mm, and the electric heating wires are crossed longitudinally and transversely to form a latticed electric heating protective net;
the electric heating wire is made of nichrome, a coating is arranged on the surface of the electric heating wire, and the coating is an insulating layer and an anticorrosive layer.
Further, the electric heating protective net is arranged on the shell or the heat exchanger, and the distance between the electric heating protective net and the fins of the heat exchanger is 1-3 mm.
Further, be equipped with solid fixed ring on the electrical heating protecting wire net, and through the screw with casing fixed connection, with the casing junction sets up insulating gasket, insulating gasket diameter is greater than solid fixed ring's internal diameter on screw diameter and the electrical heating protecting wire net.
Furthermore, a hook is arranged on the electric heating protective net, and the electric heating protective net is hung on the heat exchanger through the hook.
Compared with the prior art, the utility model has the advantages of it is following and positive effect:
1. the utility model realizes defrosting by using an electric heating mode, does not depend on the system, and the system control software does not need to be changed;
2. the defrosting of the utility model is independent of the heat exchange system, the heat exchange system operates more efficiently, and the control is simpler;
3. the utility model integrates the electric heating and the protective net, not only keeps the protective net structure of the prior product, but also can be used for defrosting;
4. the utility model discloses an electrical heating protecting wire net defrosting, control more nimble, the effect is better, and the machine does not shut down the heating in the air conditioning, and the air condensing units is the defrosting freely. The structure is simple and the realization is easy.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a rear view of an outdoor unit of an air conditioner according to the present invention;
fig. 2 is an assembly view of the electric heating protective net and the casing fixing and connecting component of the outdoor unit of the air conditioner of the present invention;
fig. 3 is a schematic view of an electric heating protective net in an outdoor unit of an air conditioner according to the present invention;
fig. 4 is a plan view of an outdoor unit of an air conditioner according to the present invention;
fig. 5 is a schematic view of an electric heating protective net hung on a heat exchanger through a hook in an outdoor unit of an air conditioner according to the present invention;
fig. 6 is a partially enlarged schematic view of an electric heating protective net hung in a heat exchanger through a hook in an outdoor unit of an air conditioner according to the present invention;
fig. 7 is a schematic diagram of a control circuit in an outdoor unit of an air conditioner according to the present invention.
Reference numerals: 1-casing of air conditioner outdoor unit; 2-electric heating protective net; 21-reserving welding spots; 22-lower reserved welding spots; 23-an electric heating wire; 24-a fixed ring; 25-hanging hooks; 3-screws; 4-an insulating pad; 5-a heat exchanger; 6-an electrical box; 7-electrically heating the substrate; 8-a leakage protector; 9-a controller; 10-a switching power supply; 11-a power supply plate; 12-temperature sensor line; 13-a signal line; 14-Main control substrate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "disposed" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, 3 and 7, the present invention relates to an air conditioner outdoor unit, and in the same way as the prior art, the present invention includes: the control circuit comprises a temperature detection circuit and a controller 9 and is used for controlling the normal operation mode and the defrosting mode of the air conditioner;
the air conditioner outdoor unit comprises a shell 1 of the air conditioner outdoor unit, wherein an air inlet is formed in the back of the shell 1;
a heat exchanger 5 in the housing 1.
Different from the prior art, the present embodiment further includes a defrosting device, where the defrosting device includes an electric heating protective net 2 arranged on one side of the heat exchanger 5, and is used for protecting the heat exchanger 5 and defrosting the heat exchanger 5;
the electric heating protective net 2 is in a net shape formed by electric heating wires 21, and the controller is connected with the electric heating protective net 2 through an electric heating element and controls the electric heating protective net 2 to heat to defrost the heat exchanger 5.
Specifically, in the present embodiment, the electric heating element includes an electric heating substrate 7 and a power supply plate 11, and the power supply plate 11 is connected to the electric heating substrate 7 through a wire.
An L terminal and an N terminal are arranged on the electric heating substrate 6, and the upper end and the lower end of the electric heating protective net 2 are respectively connected with the L terminal and the N terminal on the electric heating substrate 7 through two leads.
As shown in fig. 7, the temperature detection circuit includes a main control board 14 and a temperature sensor, the temperature sensor is connected to the main control board 14 through a temperature sensor line 12 (the conventional technique is adopted above), and the main control board 14 is connected to the power supply board 11 through a signal line 13.
The controller 9 controls the electric heating protective net 2 to heat or turn off the electricity through the switching power supply 10. The output parameters of the switching power supply 10 can be selected to be 36V, 30A.
Furthermore, two wires connecting the controller 9 and the electric heating substrate 7 are connected with a leakage protector 8, the electric heating substrate 7 and the leakage protector 8 are arranged in an electric box 6, and the leakage protector 8 can be 30mA leakage protector 8. Therefore, when a person gets an electric shock, the leakage protector 8 can trip to cause the electric heating protective net 2 to be powered off, and the safety protection effect is achieved.
Furthermore, the diameter of the electric heating wire 21 is 4-6mm, and the electric heating wires 23 criss-cross form a grid-shaped electric heating protective net 2;
the electric heating wire 23 is made of nichrome, and a coating is arranged on the surface of the electric heating wire 23 and comprises an insulating layer and an anticorrosive layer.
The following will explain the detailed assembly structure of the defrosting device of the outdoor unit of the air conditioner according to the present invention by three embodiments.
The first embodiment is as follows:
referring to fig. 1 to 4 and 7, an outdoor unit of an air conditioner according to the present invention includes: the control circuit comprises a temperature detection circuit and a controller 9 and is used for controlling the normal operation mode and the defrosting mode of the air conditioner;
the air conditioner outdoor unit comprises a shell 1 of the air conditioner outdoor unit, wherein an air inlet is formed in the back of the shell 1;
a heat exchanger 5 in the housing 1.
The defrosting device comprises an electric heating protective net 2 arranged on one side of the heat exchanger 5 and is used for protecting the heat exchanger 5 and defrosting the heat exchanger 5;
the electric heating protective net 2 is formed into a net shape by electric heating wires 23, the controller 9 is connected with the electric heating protective net 2 through an electric heating element, and controls the electric heating protective net 2 to heat to defrost the heat exchanger 5.
Further, an upper reserved welding point 21 and a lower reserved welding point 22 are respectively arranged at the upper end and the lower end of the electric heating protective net 2;
the electric heating element comprises an electric heating substrate 7 and a power supply plate 11, wherein the power supply plate 11 is connected with the electric heating substrate 7 through a lead.
An L terminal and an N terminal are arranged on the electric heating substrate 7, two wires are welded on the upper end of the electric heating protective net 2 through a reserved welding point 21 and a reserved welding point 22, and the two wires are respectively connected with the L terminal and the N terminal on the electric heating substrate 7.
Further, the temperature detection circuit includes a main control board 14 and a temperature sensor (not shown), the temperature sensor is connected to the main control board 14 through a temperature sensor line 12 (the above adopts the prior art), and the main control board 14 is connected to the power supply board 11 through a signal line 13.
The controller 9 controls the electric heating protective net 2 to heat or turn off the electricity through the switching power supply 10. The output parameters of the switching power supply 10 can be selected to be 36V, 30A.
Still further, two wires connecting the controller 9 and the electric heating substrate 7 are connected with a leakage protector 8, the electric heating substrate 7 and the leakage protector 8 are arranged in an electric box 6, and the leakage protector 8 can be a leakage protector of 30 mA.
Therefore, when a person gets an electric shock, the leakage protector 8 can trip to cause the electric heating protective net 2 to be powered off, and the safety protection effect is achieved.
Preferably, the diameter of the electric heating wire 23 is 5mm, and the electric heating wires 23 criss-cross form a grid-shaped electric heating protective net 2;
the electric heating wire 23 is made of nichrome, and a coating is arranged on the surface of the electric heating wire 23 and comprises an insulating layer and an anticorrosive layer.
Specifically, the method comprises the following steps: the utility model provides a housing 1 of outdoor unit of air conditioner includes left side board, right side board, roof and bottom plate, and housing 1 sets up the air intake at the back.
The electric heating protection net 2 is provided with a fixing ring 24, the electric heating protection net 2 is fixedly connected with the left side plate and the right side plate of the shell 1 through screws 3, or is fixedly connected with the top plate of the shell 1, and the installation position of the electric heating protection net 2 is located at an air inlet on the back of the shell 1.
The joint of the screw 3 and the shell 1 is provided with an insulating gasket 4, and the diameter of the insulating gasket 4 is larger than the diameter of the screw 3 and the inner diameter of a fixing ring 24 on the electric heating protective net. And the distance between the electric heating protective net 2 and the fins of the heat exchanger 5 is kept about 2 mm.
Example two:
the defrosting device of the air conditioner outdoor unit in the embodiment is basically the same as the first embodiment, and the difference is that the electric heating protective net is installed and fixed in the following way: the electric heating protective net does not need to be fixed by screws, and the electric heating protective net is spliced with the shell in a buckling mode or a clamping groove mode, so that quick installation can be realized, the installation efficiency is high, and the fixation is firm.
Example three:
referring to fig. 1, 5-7, the utility model relates to an air condensing units defroster, it includes: the control circuit comprises a temperature detection circuit and a controller 9 and is used for controlling the normal operation mode and the defrosting mode of the air conditioner;
the air conditioner outdoor unit comprises a shell 1 of the air conditioner outdoor unit, wherein an air inlet is formed in the back of the shell 1;
a heat exchanger 5 in the housing 1.
The defrosting device comprises an electric heating protective net 2 arranged on one side of the heat exchanger 5 and is used for protecting the heat exchanger 5 and defrosting the heat exchanger 5;
the electric heating protective net 2 is formed into a net shape by electric heating wires 23, the controller 9 is connected with the electric heating protective net 2 through an electric heating element, and controls the electric heating protective net 2 to heat to defrost the heat exchanger 5.
Further, an upper reserved welding point 21 and a lower reserved welding point 22 are respectively arranged at the upper end and the lower end of the electric heating protective net 2;
the electric heating element comprises an electric heating substrate 7 and a power supply plate 11, wherein the power supply plate 11 is connected with the electric heating substrate 7 through a lead.
An L terminal and an N terminal are arranged on the electric heating substrate 7, two wires are welded on the upper end of the electric heating protective net 2 through a reserved welding point 21 and a reserved welding point 22, and the two wires are respectively connected with the L terminal and the N terminal on the electric heating substrate 7.
As shown in fig. 7, the temperature detection circuit includes a main control board 14 and a temperature sensor (not shown), the temperature sensor is connected to the main control board 14 through a temperature sensor line 12 (in the prior art), and the main control board 14 is connected to the power supply board 11 through a signal line 13.
The controller 9 controls the electric heating protective net 2 to heat or turn off the electricity through the switching power supply 10. The output parameters of the switching power supply 10 can be selected to be 36V, 30A.
Two wires for connecting the controller 9 and the electric heating substrate 7 are connected with a leakage protector 8, the electric heating substrate 7 and the leakage protector 8 are arranged in an electric box 6, and the leakage protector 8 can be a leakage protector of 30 mA.
Therefore, when a person gets an electric shock, the leakage protector 8 can trip to cause the electric heating protective net 2 to be powered off, and the safety protection effect is achieved.
Preferably, the diameter of the electric heating wire 23 is 5mm, and the electric heating wires 23 criss-cross form a grid-shaped electric heating protective net 2;
the electric heating wire 23 is made of nichrome, and a coating is arranged on the surface of the electric heating wire 23 and comprises an insulating layer and an anticorrosive layer.
Specifically, the method comprises the following steps: the electric heating protective net 2 is provided with a hook 25, the electric heating protective net 2 is hung on the heat exchanger 5 through the hook 25, and specifically, the hook 25 is hung in the heat exchanger 5;
and the distance between the electric heating protective net 2 and the fins of the heat exchanger 5 is kept about 2 mm.
And judging according to conditions such as temperature, time, pressure and the like, if the temperature sensor detects that the temperature is lower than a certain limit value and the host computer tests that the air volume is reduced to 80 percent of a rated value, starting a defrosting mode, controlling the heating start and stop of the electric heating protective net 2, and finishing defrosting. After defrosting is finished, the indoor unit enters a normal mode, and heating of the indoor unit is not stopped in the defrosting process.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An outdoor unit of an air conditioner, comprising:
the control circuit comprises a temperature detection circuit and a controller and is used for controlling a normal operation mode and a defrosting mode of the air conditioner;
the air conditioner outdoor unit comprises a shell, wherein an air inlet is formed in the back of the shell;
a heat exchanger in the housing;
the defrosting device comprises an electric heating protective net arranged on one side of the heat exchanger, and is used for protecting the heat exchanger and defrosting the heat exchanger;
the electric heating protective net is in a net shape formed by electric heating wires, the controller is connected with the electric heating wires of the electric heating protective net through an electric heating element and controls the electric heating protective net to heat the heat exchanger for defrosting.
2. The outdoor unit of claim 1, wherein the electric heating element comprises an electric heating base plate and a power supply plate, the power supply plate being connected to the electric heating base plate;
the electric heating device comprises an electric heating substrate and is characterized in that an L terminal and an N terminal are arranged on the electric heating substrate, and the upper end and the lower end of the electric heating protective net are respectively connected with the L terminal and the N terminal on the electric heating substrate through two wires.
3. The outdoor unit of claim 2, wherein a leakage protector is connected to the two wires connecting the controller and the electric heating substrate, and the electric heating substrate and the leakage protector are provided in an electric box.
4. An outdoor unit of an air conditioner according to any one of claims 1 to 3, wherein the electric heating wires have a diameter of 4 to 6mm, and are crossed in a vertical and horizontal direction to form a mesh-shaped electric heating protection net;
the electric heating wire is made of nichrome, a coating is arranged on the surface of the electric heating wire, and the coating is an insulating layer and an anticorrosive layer.
5. An outdoor unit of an air conditioner according to any one of claims 1 to 3, wherein the electric heating protective net is provided on the casing or the heat exchanger, and the distance between the electric heating protective net and the fins of the heat exchanger is 1 to 3 mm.
6. The outdoor unit of claim 4, wherein the electric heating protective net is installed on the casing or the heat exchanger, and a distance between the electric heating protective net and the fins of the heat exchanger is 1-3 mm.
7. An outdoor unit of an air conditioner according to any one of claims 1 to 3, wherein a fixing ring is provided on the electric heating protective net and is fixedly coupled to the casing by a screw, and an insulating gasket having a diameter larger than a diameter of the screw and an inner diameter of the fixing ring of the electric heating protective net is provided at a coupling portion with the casing.
8. The outdoor unit of claim 6, wherein the electric heating protector is provided with a fixing ring and is fixedly coupled to the casing by a screw, and an insulating gasket having a diameter greater than a diameter of the screw and an inner diameter of the fixing ring of the electric heating protector is provided at a position coupled to the casing.
9. The outdoor unit of claim 5, wherein the electric heating protective net is provided with hooks, and the electric heating protective net is hung on the heat exchanger by the hooks.
10. The outdoor unit of claim 6, wherein the electric heating protective net is provided with hooks, and the electric heating protective net is hung on the heat exchanger by the hooks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020018147.4U CN211503022U (en) | 2020-01-06 | 2020-01-06 | Outdoor unit of air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020018147.4U CN211503022U (en) | 2020-01-06 | 2020-01-06 | Outdoor unit of air conditioner |
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| CN211503022U true CN211503022U (en) | 2020-09-15 |
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| CN202020018147.4U Active CN211503022U (en) | 2020-01-06 | 2020-01-06 | Outdoor unit of air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959017A (en) * | 2021-10-13 | 2022-01-21 | 珠海格力电器股份有限公司 | Heat exchanger heating device, air conditioner and control method of air conditioner |
-
2020
- 2020-01-06 CN CN202020018147.4U patent/CN211503022U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959017A (en) * | 2021-10-13 | 2022-01-21 | 珠海格力电器股份有限公司 | Heat exchanger heating device, air conditioner and control method of air conditioner |
| CN113959017B (en) * | 2021-10-13 | 2023-02-24 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
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